secondary analysis study: Topics by Science.gov

Sample records for secondary analysis study

Secondary data analysis of large data sets in urology: successes and errors to avoid.

PubMed

Schlomer, Bruce J; Copp, Hillary L

2014-03-01

Secondary data analysis is the use of data collected for research by someone other than the investigator. In the last several years there has been a dramatic increase in the number of these studies being published in urological journals and presented at urological meetings, especially involving secondary data analysis of large administrative data sets. Along with this expansion, skepticism for secondary data analysis studies has increased for many urologists. In this narrative review we discuss the types of large data sets that are commonly used for secondary data analysis in urology, and discuss the advantages and disadvantages of secondary data analysis. A literature search was performed to identify urological secondary data analysis studies published since 2008 using commonly used large data sets, and examples of high quality studies published in high impact journals are given. We outline an approach for performing a successful hypothesis or goal driven secondary data analysis study and highlight common errors to avoid. More than 350 secondary data analysis studies using large data sets have been published on urological topics since 2008 with likely many more studies presented at meetings but never published. Nonhypothesis or goal driven studies have likely constituted some of these studies and have probably contributed to the increased skepticism of this type of research. However, many high quality, hypothesis driven studies addressing research questions that would have been difficult to conduct with other methods have been performed in the last few years. Secondary data analysis is a powerful tool that can address questions which could not be adequately studied by another method. Knowledge of the limitations of secondary data analysis and of the data sets used is critical for a successful study. There are also important errors to avoid when planning and performing a secondary data analysis study. Investigators and the urological community need to strive to use secondary data analysis of large data sets appropriately to produce high quality studies that hopefully lead to improved patient outcomes. Copyright © 2014 American Urological Association Education and Research, Inc. Published by Elsevier Inc. All rights reserved.
Conducting high-value secondary dataset analysis: an introductory guide and resources.

PubMed

Smith, Alexander K; Ayanian, John Z; Covinsky, Kenneth E; Landon, Bruce E; McCarthy, Ellen P; Wee, Christina C; Steinman, Michael A

2011-08-01

Secondary analyses of large datasets provide a mechanism for researchers to address high impact questions that would otherwise be prohibitively expensive and time-consuming to study. This paper presents a guide to assist investigators interested in conducting secondary data analysis, including advice on the process of successful secondary data analysis as well as a brief summary of high-value datasets and online resources for researchers, including the SGIM dataset compendium ( www.sgim.org/go/datasets ). The same basic research principles that apply to primary data analysis apply to secondary data analysis, including the development of a clear and clinically relevant research question, study sample, appropriate measures, and a thoughtful analytic approach. A real-world case description illustrates key steps: (1) define your research topic and question; (2) select a dataset; (3) get to know your dataset; and (4) structure your analysis and presentation of findings in a way that is clinically meaningful. Secondary dataset analysis is a well-established methodology. Secondary analysis is particularly valuable for junior investigators, who have limited time and resources to demonstrate expertise and productivity.
Primary, Secondary, and Meta-Analysis of Research

ERIC Educational Resources Information Center

Glass, Gene V.

1976-01-01

Examines data analysis at three levels: analysis of data; secondary analysis is the re-analysis of data for the purpose of answering the original research question with better statistical techniques, or answering new questions with old data; and, meta-analysis refers to the statistical analysis of many analysis results from individual studies for…
Secondary analysis of a scoping review of health promotion interventions for persons with disabilities: Do health promotion interventions for people with mobility impairments address secondary condition reduction and increased community participation?

PubMed

White, Glen W; Gonda, Chiaki; Peterson, Jana J; Drum, Charles E

2011-04-01

Secondary conditions can have very serious outcomes for people with physical disabilities. Such consequences can range from immobility due to pressure sores to withdrawal and isolation due to depression, decreasing participation in the community. To further investigate these assumptions, we conducted a review of the literature on health promotion interventions that include physical activity for adults with disabilities to determine whether they have a positive effect on the reduction of secondary conditions and increased community participation. We conducted a secondary analysis of the results of a scoping review of health promotion programs containing physical activity for people with mobility impairments (N = 5). This secondary analysis examined the relationship between health promotion containing physical activity and prevention of secondary conditions among people with various physical disabilities. We further examined evidence and effects of independent variables on the outcome of increased community participation for study participants. The outcomes from this investigation are varied, with 2 studies providing evidence of reducing secondary conditions while another shared anecdotal statements referencing a decrease in secondary conditions. Of the remaining 2 studies in this paper, 1 showed no intervention effect on reducing secondary conditions while the remaining study reported an increase in secondary conditions. Regarding increased participation in the community, 2 of 5 studies directly reported on these outcomes, while increased community participation was referenced in another 2 articles, but without any data presented. The final study did not report on any post intervention in the community. This review demonstrates that research on health promotion interventions containing physical activity lack description about whether such interventions help reduce or prevent secondary conditions. Additionally, the review shows that further work is needed in terms of sustaining health programs effects beyond the initial proximal activity gains, with attention given toward more distal outcomes of increased participant participation in the community. Copyright © 2011. Published by Elsevier Inc.
Testing Mediation Using Multiple Regression and Structural Equation Modeling Analyses in Secondary Data

ERIC Educational Resources Information Center

Li, Spencer D.

2011-01-01

Mediation analysis in child and adolescent development research is possible using large secondary data sets. This article provides an overview of two statistical methods commonly used to test mediated effects in secondary analysis: multiple regression and structural equation modeling (SEM). Two empirical studies are presented to illustrate the…
Writing for Learning in Science: A Secondary Analysis of Six Studies

ERIC Educational Resources Information Center

Gunel, Murat; Hand, Brian; Prain, Vaughan

2007-01-01

This study is a secondary analysis of six previous studies that formed part of an ongoing research program focused on examining the benefits of using writing-to-learn strategies within science classrooms. The study is an attempt to make broader generalizations than those based on individual studies, given limitations related to sample sizes,…
Prediction of primary vs secondary hypertension in children.

PubMed

Baracco, Rossana; Kapur, Gaurav; Mattoo, Tej; Jain, Amrish; Valentini, Rudolph; Ahmed, Maheen; Thomas, Ronald

2012-05-01

Despite current guidelines, variability exists in the workup of hypertensive children due to physician preferences. The study evaluates primary vs secondary hypertension diagnosis from investigations routinely performed in hypertensive children. This retrospective study included children 5 to 19 years with primary and secondary hypertension. The proportions of abnormal laboratory and imaging tests were compared between primary and secondary hypertension groups. Risk factors for primary vs secondary hypertension were evaluated by logistic regression and likelihood function analysis. Patients with secondary hypertension were younger (5-12 years) and had a higher proportion of abnormal creatinine, renal ultrasound, and echocardiogram findings. There was no significant difference in abnormal results of thyroid function, urine catecholamines, plasma renin, and aldosterone. Abnormal renal ultrasound findings and age were predictors of secondary hypertension by regression and likelihood function analysis. Children aged 5 to 12 years with abnormal renal ultrasound findings and high diastolic blood pressures are at higher risk for secondary hypertension that requires detailed evaluation. © 2012 Wiley Periodicals, Inc.
Secondary School Burnout Scale (SSBS)

ERIC Educational Resources Information Center

Aypay, Ayse

2012-01-01

The purpose of this study is to develop "Secondary School Burnout Scale." Study group included 728 students out of 14 schools in four cities in Turkey. Both Exploratory Factor Analysis and Confirmatory Factor Analysis were conducted on the data. A seven-factor solution emerged. The seven factors explained 61% of the total variance. The…
Examining the Use of Audience Response Systems in Secondary School Classrooms: A Formative Analysis

ERIC Educational Resources Information Center

Kay, Robin; LeSage, Ann; Knaack, Liesel

2010-01-01

To date, extensive research has been done on the use of Audience Response Systems (ARSs) in colleges and universities, but not in secondary school schools. The purpose of this study was to conduct a detailed formative analysis on the benefits, challenges, and use of ARSs from the perspective of 659 secondary school students. Key benefits reported…
A general regression framework for a secondary outcome in case-control studies.

PubMed

Tchetgen Tchetgen, Eric J

2014-01-01

Modern case-control studies typically involve the collection of data on a large number of outcomes, often at considerable logistical and monetary expense. These data are of potentially great value to subsequent researchers, who, although not necessarily concerned with the disease that defined the case series in the original study, may want to use the available information for a regression analysis involving a secondary outcome. Because cases and controls are selected with unequal probability, regression analysis involving a secondary outcome generally must acknowledge the sampling design. In this paper, the author presents a new framework for the analysis of secondary outcomes in case-control studies. The approach is based on a careful re-parameterization of the conditional model for the secondary outcome given the case-control outcome and regression covariates, in terms of (a) the population regression of interest of the secondary outcome given covariates and (b) the population regression of the case-control outcome on covariates. The error distribution for the secondary outcome given covariates and case-control status is otherwise unrestricted. For a continuous outcome, the approach sometimes reduces to extending model (a) by including a residual of (b) as a covariate. However, the framework is general in the sense that models (a) and (b) can take any functional form, and the methodology allows for an identity, log or logit link function for model (a).
Secondary Analysis of National Longitudinal Transition Study 2 Data

ERIC Educational Resources Information Center

Hicks, Tyler A.; Knollman, Greg A.

2015-01-01

This review examines published secondary analyses of National Longitudinal Transition Study 2 (NLTS2) data, with a primary focus upon statistical objectives, paradigms, inferences, and methods. Its primary purpose was to determine which statistical techniques have been common in secondary analyses of NLTS2 data. The review begins with an…
The Study Elements and Indicators of Risk Management System for Secondary Schools in Thailand

ERIC Educational Resources Information Center

Wandee, Methenan; Sirisuthi, Chaiyuth; Leamvijarn, Subunn

2017-01-01

The purposes of this research aimed 1) to study the elements and indicators of risk management system for secondary schools in Thailand. 2) to study suitable the elements and indicators of the risk management system for secondary schools in Thailand. 3) to study the results of CFA (Confirmatory Factors Analysis) risk management process of risk…
Analysis of Principals' Managerial Competencies for Effective Management of School Resources in Secondary Schools in Anambra State, Nigeria

ERIC Educational Resources Information Center

Victor, Akinfolarin Akinwale

2017-01-01

This study analyses principals' managerial competencies for effective management of school resources in secondary schools in Anambra State. The study was conducted in Anambra State. The study population comprised 257 principals in public secondary schools in the State. The study adopted a descriptive survey design. A 24 items researcher developed…
Colonialism and Secondary Technical Education in Hong Kong: 1945-1997

ERIC Educational Resources Information Center

Lau, Wai Wah; Kan, Flora

2011-01-01

This study examines the influence of the colonial experience (1945-1997) on the planning of secondary technical education in Hong Kong. Specifically, the origins of secondary technical institutions and their positioning in secondary education are examined. Primary source materials are used as the basis of investigation and analysis, supplemented…
Prospective Secondary Mathematics Teachers' Reflections on Teaching after Their First Teaching Experience

ERIC Educational Resources Information Center

Yazgan-Sag, Gönül; Emre-Akdogan, Elçin; Argün, Ziya

2016-01-01

The aim of our study was to examine prospective secondary mathematics teachers' reflections about teaching after their first teaching experience. We carried out five interviews during the two semesters with four Turkish prospective secondary mathematics teachers. The data analysis suggests that prospective secondary mathematics teachers'…
The incidence of secondary vertebral fracture of vertebral augmentation techniques versus conservative treatment for painful osteoporotic vertebral fractures: a systematic review and meta-analysis.

PubMed

Song, Dawei; Meng, Bin; Gan, Minfeng; Niu, Junjie; Li, Shiyan; Chen, Hao; Yuan, Chenxi; Yang, Huilin

2015-08-01

Percutaneous vertebroplasty (PVP) and balloon kyphoplasty (BKP) are minimally invasive and effective vertebral augmentation techniques for managing osteoporotic vertebral compression fractures (OVCFs). Recent meta-analyses have compared the incidence of secondary vertebral fractures between patients treated with vertebral augmentation techniques or conservative treatment; however, the inclusions were not thorough and rigorous enough, and the effects of each technique on the incidence of secondary vertebral fractures remain unclear. To perform an updated systematic review and meta-analysis of the studies with more rigorous inclusion criteria on the effects of vertebral augmentation techniques and conservative treatment for OVCF on the incidence of secondary vertebral fractures. PubMed, MEDLINE, EMBASE, SpringerLink, Web of Science, and the Cochrane Library database were searched for relevant original articles comparing the incidence of secondary vertebral fractures between vertebral augmentation techniques and conservative treatment for patients with OVCFs. Randomized controlled trials (RCTs) and prospective non-randomized controlled trials (NRCTs) were identified. The methodological qualities of the studies were evaluated, relevant data were extracted and recorded, and an appropriate meta-analysis was conducted. A total of 13 articles were included. The pooled results from included studies showed no statistically significant differences in the incidence of secondary vertebral fractures between patients treated with vertebral augmentation techniques and conservative treatment. Subgroup analysis comparing different study designs, durations of symptoms, follow-up times, races of patients, and techniques were conducted, and no significant differences in the incidence of secondary fractures were identified (P > 0.05). No obvious publication bias was detected by either Begg's test (P = 0.360 > 0.05) or Egger's test (P = 0.373 > 0.05). Despite current thinking in the field that vertebral augmentation procedures may increase the incidence of secondary fractures, we found no differences in the incidence of secondary fractures between vertebral augmentation techniques and conservative treatment for patients with OVCFs. © The Foundation Acta Radiologica 2014.
Secondary and Tertiary Citing: A Study of Referencing Behavior in the Literature of Citation Analysis Deriving from the Ortega Hypothesis of Cole and Cole.

ERIC Educational Resources Information Center

Hoerman, Heidi Lee; Nowicke, Carole Elizabeth

1995-01-01

Examines documents and citations relating to literature of the Ortega Hypothesis, reviews citing behaviors and errors of individual citations, and includes analysis of the occurrences of secondary and tertiary citing. Findings show there is little evidence to prove that secondary and tertiary citing is not occurring and suggests that further…
An Analysis of Writing Activities in the Student Workbooks of a Secondary-Level Turkish Language Course

ERIC Educational Resources Information Center

Çerçi, Arif

2016-01-01

The purpose of this study is to analyze writing activities in the student workbooks of a secondary-level Turkish language course (grades 5 to 8) according to the principles of progressive writing. The study is descriptive and employs content analysis as a qualitative research paradigm. The writing activities of the books in this study all…
Reflections of Post-Secondary Educational Experiences of Selected Women of the United Arab Emirates (UAE): A Qualitative Analysis Investigating the Motivations, Supports, Rewards, and Challenges Encountered by Seven Emirati Women in the Year 2004

ERIC Educational Resources Information Center

Daleure, Georgia

2005-01-01

The study examined the post-secondary experiences of seven Emirati women to investigate reasons for the female dominated post-secondary educational persistence which was at the time of the study 65% female to 35% male. The study used internet text messaging to interview the women about issues surrounding their post-secondary educational…
A secondary meta-synthesis of qualitative studies of gender and access to cardiac rehabilitation.

PubMed

Angus, Jan E; King-Shier, Kathryn M; Spaling, Melisa A; Duncan, Amanda S; Jaglal, Susan B; Stone, James A; Clark, Alexander M

2015-08-01

To discuss issues in the theorization and study of gender observed during a qualitative meta-synthesis of influences on uptake of secondary prevention and cardiac rehabilitation services. Women and men can equally benefit from secondary prevention/cardiac rehabilitation and there is a need to understand gender barriers to uptake. Meta-method analysis secondary to meta-synthesis. For the meta-synthesis, a systematic search was performed to identify and retrieve studies published as full papers during or after 1995 and contained: a qualitative research component wholly or in a mixed method design, extractable population specific data or themes for referral to secondary prevention programmes and adults ≥18 years. Databases searched between January 1995-31 October 2011 included: CSA Sociological Abstracts, EBSCOhost CINAHL, EBSCOhost Gender Studies, EBSCOhost Health Source Nursing: Academic Edition, EBSCOhost SPORTDiscus, EBSCOhost SocINDEX. Studies were reviewed against inclusion/exclusion criteria. Included studies were subject to quality appraisal and standardized data extraction. Of 2264 screened articles, 69 were included in the meta-method analysis. Only four studies defined gender or used gender theories. Findings were mostly presented as inherently the characteristic of gendered worldviews of participants. The major themes suggest a mismatch between secondary prevention/cardiac rehabilitation services and consumers' needs, which are usually portrayed as differing according to gender but may also be subject to intersecting influences such as age or socioeconomic status. There is a persistent lack of theoretically informed gender analysis in qualitative literature in this field. Theory-driven gender analysis will improve the conceptual clarity of the evidence base for gender-sensitive cardiac rehabilitation programme development. © 2015 John Wiley & Sons Ltd.

Secondary Collisions Following a Traffic Barrier Impact: Frequency, Factors, and Occupant Risk

PubMed Central

Gabauer, Douglas J.

2010-01-01

This study has investigated secondary collisions following an initial barrier impact in tow-away level crashes. The analysis included 2026 barrier impact cases that were selected from 12-years of in-depth crash data available through the National Automotive Sampling System (NASS) / Crashworthiness Data System (CDS). Secondary collisions were found to occur in approximately one-third of tow-away level crashes where a traffic barrier was the first object struck. Secondary crashes were found to primarily involve an impact to another vehicle, an impact to another barrier, or a rollover; tree and pole impacts were found to represent a much smaller proportion of secondary impacts. Through a detailed analysis of vehicle trajectory, this study supports previous research suggesting secondary collision risk is substantial even for vehicles not ultimately involved in a secondary collision. Compared to a single barrier impact, the occurrence of a secondary collision was found to increase the risk of serious occupant injury by a factor of 3.5, equivalent to the serious injury risk difference found between a belted and unbelted occupant in a traffic barrier crash. PMID:21050605
The Public Secondary School and Teacher in American Films of the 1990s

ERIC Educational Resources Information Center

Dowd, Arleen B.

2012-01-01

This study examined how public secondary schools and educators were portrayed in American films of the 1990s. Thirty films were selected for study that were produced and released in the decade of the 1990s. Content analysis and a "Film Analysis Form" produced answers to eight questions regarding the learning environments, portrayal of…
[STandardized Reporting Of Secondary data Analyses (STROSA)—a recommendation].

PubMed

Swart, Enno; Schmitt, Jochen

2014-01-01

Secondary data analyses will play an increasingly important role in health services research. But to date, there is no guideline for the systematic, transparent and complete reporting of secondary data. We investigated whether the STROBE statement, i.e., the recommendations for reporting observational studies, satisfies the specific characteristics of secondary data analyses and whether any specifications/modifications and extensions are necessary. For the majority of the 22 STROBE criteria, specifications and extensions are needed to meet the requirements of systematic, transparent and complete reporting of secondary data analysis. Seven aspects of secondary data analysis not covered by STROBE (legal aspects, data flow, protocol, unit of analysis, internal validations/definitions, advantages of secondary data utilisation, role of data owners) should be considered as a specific complement to STROBE. The so called STROSA (STandardized Reporting Of Secondary data Analyses) checklist therefore includes 29 items that relate to the title/abstract, introduction, methods, results and discussion sections of articles. The STROSA checklist is intended to support authors and readers in the critical appraisal of secondary data analyses. This proposal will now be subject to continued scientific discussions. Copyright © 2014. Published by Elsevier GmbH.
Secondary outcome analysis for data from an outcome-dependent sampling design.

PubMed

Pan, Yinghao; Cai, Jianwen; Longnecker, Matthew P; Zhou, Haibo

2018-04-22

Outcome-dependent sampling (ODS) scheme is a cost-effective way to conduct a study. For a study with continuous primary outcome, an ODS scheme can be implemented where the expensive exposure is only measured on a simple random sample and supplemental samples selected from 2 tails of the primary outcome variable. With the tremendous cost invested in collecting the primary exposure information, investigators often would like to use the available data to study the relationship between a secondary outcome and the obtained exposure variable. This is referred as secondary analysis. Secondary analysis in ODS designs can be tricky, as the ODS sample is not a random sample from the general population. In this article, we use the inverse probability weighted and augmented inverse probability weighted estimating equations to analyze the secondary outcome for data obtained from the ODS design. We do not make any parametric assumptions on the primary and secondary outcome and only specify the form of the regression mean models, thus allow an arbitrary error distribution. Our approach is robust to second- and higher-order moment misspecification. It also leads to more precise estimates of the parameters by effectively using all the available participants. Through simulation studies, we show that the proposed estimator is consistent and asymptotically normal. Data from the Collaborative Perinatal Project are analyzed to illustrate our method. Copyright © 2018 John Wiley & Sons, Ltd.
An Analysis of Classroom Rules in Secondary Schools in Turkey

ERIC Educational Resources Information Center

Buluc, Bekir

2006-01-01

The aim of this study is to analyze the process of planning, preparation, application and evaluation of classroom rules at secondary schools, and to come up with some recommendations to develop functional classroom rules depending on the findings. The study is a survey of the graduates of secondary schools who are currently attending to some…
The Role and Characteristics of Tactile Graphics in Secondary Mathematics and Science Textbooks in Braille

ERIC Educational Resources Information Center

Smith, Derrick W.; Smothers, Sinikka M.

2012-01-01

Introduction: The purpose of the study presented here was to determine how well tactile graphics (specifically data analysis graphs) in secondary mathematics and science braille textbooks correlated with the print graphics. Method: A content analysis was conducted on 598 separate data analysis graphics from 10 mathematics and science textbooks.…
A Secondary Analysis of the Impact of School Management Practices on School Performance

ERIC Educational Resources Information Center

Talbert, Dale A.

2009-01-01

The purpose of this study was to conduct a secondary analysis of the impact of school management practices on school performance utilizing a survey design of School and Staffing (SASS) data collected by the National Center for Education Statistics (NCES) of the U.S. Department of Education, 1999-2000. The study identifies those school management…
Benefit Incidence Analysis of Government Spending on Public-Private Partnership Schooling under Universal Secondary Education Policy in Uganda

ERIC Educational Resources Information Center

Wokadala, J.; Barungi, M.

2015-01-01

The study establishes whether government spending on private universal secondary education (USE) schools is equitable across quintiles disaggregated by gender and by region in Uganda. The study employs benefit incidence analysis tool on the Uganda National Panel Survey (UNPS 2009/10) data to establish the welfare impact of public subsidy on…
Functional analysis screening for multiple topographies of problem behavior.

PubMed

Bell, Marlesha C; Fahmie, Tara A

2018-04-23

The current study evaluated a screening procedure for multiple topographies of problem behavior in the context of an ongoing functional analysis. Experimenters analyzed the function of a topography of primary concern while collecting data on topographies of secondary concern. We used visual analysis to predict the function of secondary topographies and a subsequent functional analysis to test those predictions. Results showed that a general function was accurately predicted for five of six (83%) secondary topographies. A specific function was predicted and supported for a subset of these topographies. The experimenters discuss the implication of these results for clinicians who have limited time for functional assessment. © 2018 Society for the Experimental Analysis of Behavior.
Secondary School Dropouts.

ERIC Educational Resources Information Center

Minnesota State Dept. of Education, St. Paul.

This report on secondary school dropouts consists of an analysis of the scope and nature of the dropout problem, a discussion of successful programs and activities for dropouts, a description of a pilot study involving Minnesota public secondary schools and Comprehensive Employment and Training Act (CETA) agencies, and presentation of…
Sanctions Connected to Dress Code Violations in Secondary School Handbooks

ERIC Educational Resources Information Center

Workman, Jane E.; Freeburg, Elizabeth W.; Lentz-Hees, Elizabeth S.

2004-01-01

This study identifies and evaluates sanctions for dress code violations in secondary school handbooks. Sanctions, or consequences for breaking rules, vary along seven interrelated dimensions: source, formality, retribution, obtrusiveness, magnitude, severity, and pervasiveness. A content analysis of handbooks from 155 public secondary schools…
The Extend of Adaptation Bloom's Taxonomy of Cognitive Domain in English Questions Included in General Secondary Exams

ERIC Educational Resources Information Center

Alzu'bi, Mohammad Akram

2014-01-01

The study aimed at analyzing English questions of the Jordanian Secondary Certificate Examinations via Blooms' cognitive levels. An analysis sheet was prepared by the researcher for the purpose of the study, which was ensured to be valid and reliable. The whole questions of the general secondary examinations for English course in both levels…
A Modified Content Analysis of Selected Secondary Reading Methods Textbooks: 1970-2008

ERIC Educational Resources Information Center

Hunt, Teresita Michele

2009-01-01

The purpose of this study was to examine how secondary teachers have been taught to teach reading-to-learn over the last four decades, and to teach the struggling and reluctant readers in their classes. In this study, twelve secondary reading methods textbooks were analyzed. The textbooks were chosen based on four criteria: (a) availability, (b)…
Beyond Academic Tracking: Using Cluster Analysis and Self-Organizing Maps to Investigate Secondary Students' Chemistry Self-Concept

ERIC Educational Resources Information Center

Nielsen, Sara E.; Yezierski, Ellen J.

2016-01-01

Academic tracking, placing students in different classes based on past performance, is a common feature of the American secondary school system. A longitudinal study of secondary students' chemistry self-concept scores was conducted, and one feature of the study was the presence of academic tracking. Though academic tracking is one way to group…
Unpacking High and Low Efficacy Teachers' Task Analysis and Competence Assessment in Teaching Low-Achieving Students in Secondary Schools

ERIC Educational Resources Information Center

Wang, Li-Yi; Jen-Yi, Li; Tan, Liang-See; Tan, Irene; Lim, Xue-Fang; Wu, Bing Sheng

2016-01-01

This study adopted a pragmatic qualitative research design to unpack high and low efficacy teachers' task analysis and competence assessment in the context of teaching low-achieving students. Nine secondary school English and Science teachers were recruited and interviewed. Results of thematic analysis show that helping students perform well in…
The Two Faces of Secondary Headship: Women Deputy Head Teachers' Perceptions of the Secondary Head Teacher Role

ERIC Educational Resources Information Center

Guihen, Laura

2017-01-01

Men continue to outnumber women at the secondary head teacher level. This article reports on some of the preliminary findings of a larger study exploring the ways in which women deputy head teachers, as potential aspirants to headship, perceive the secondary head teacher role. Using an Interpretative Phenomenological Analysis methodology,…
Development of Questionnaire on Emotional Labor among Primary and Secondary School Teachers

ERIC Educational Resources Information Center

Liu, Yanling; Zhang, Dajun

2015-01-01

In this study, based on the analysis of existing definitions of emotional labor, operational definition of teachers' emotional labor is given and questionnaire on emotional labor among primary and secondary school teachers is developed. Research results: exploratory factor analysis shows that teacher's emotional labor involves three dimensions…
Secondary School Students' Views of Inhibiting Factors in Seeking Counselling

ERIC Educational Resources Information Center

Chan, Stephanie; Quinn, Philip

2012-01-01

This study examines secondary school students' perceptions of inhibiting factors in seeking counselling. Responses to a questionnaire completed by 1346 secondary school students were analysed using quantitative and qualitative methods. Exploratory factor analysis highlighted that within 21 pre-defined inhibiting factors, items loaded strongly on…
Exploring the Relationship between Access Technology and Standardized Test Scores for Youths with Visual Impairments: Secondary Analysis of the National Longitudinal Transition Study 2

ERIC Educational Resources Information Center

Freeland, Amy L.; Emerson, Robert Wall; Curtis, Amy B.; Fogarty, Kieran

2010-01-01

This article presents the findings of a secondary analysis of the National Longitudinal Transition Study 2 that explored the predictive association between training in access technology and performance on the Woodcock-Johnson Tests of Academic Achievement: III. The results indicated that the use of access technology had a limited predictive…
The Effect of Simulation-Games Environment on Students' Achievement in and Attitudes to Mathematics in Secondary Schools

ERIC Educational Resources Information Center

Akinsola, M. K.; Animasahun, I. A.

2007-01-01

This study sought to determine the effect of simulation-games environment on students' achievement in attitudes to mathematics in secondary school. Data was collected from a sample of 147 students in senior secondary school in Osun-State, Nigeria. t-test and analysis of variance was used to analyze the data collected for the study. The finding…

The Effect of Simulation-Games Environment on Students Achievement in and Attitudes to Mathematics in Secondary Schools

ERIC Educational Resources Information Center

Akinsola, M. K.; Animasahun, I. A.

2007-01-01

This study sought to determine the effect of simulation-games environment on students' achievement in attitudes to mathematics in secondary school. Data was collected from a sample of 147 students in senior secondary school in Osun-State, Nigeria. t-test and analysis of variance was used to analyze the data collected for the study. The finding…
Patient-centered knowledge sharing in healthcare organizations: Identifying the external barriers.

PubMed

Zhou, Lihong

2017-12-01

This paper reports on a research study, which aims to identify, qualify, and theorize the external barriers that prevent and hinder the exercises and activities of patient-centered knowledge sharing (KS) in healthcare organizations. The project adopted a qualitative secondary analysis approach as the overarching methodology to guide the analysis of data collected in a previously completed research study. Specifically, 46 semi-structured interview data were included and analyzed using a thematic analysis approach. The secondary analysis showed that healthcare KS is strongly influenced and hindered by five external barriers: social belief and preference, cultural values, healthcare education structure, political decisions, and economic environment and constraints. Moreover, the research findings suggest that these external barriers cannot be overlooked in KS implementation and operation in healthcare organizations and should be carefully assessed beginning in the early stages of KS design and strategic planning. Based on the secondary analysis, this paper proposes a conceptual model, which will contribute to the development of hypotheses in the future for building a generalized knowledge. The case study used is Chinese healthcare, but the KS problems studied can be shared across international borders.
Mathematical Interventions for Secondary Students with Learning Disabilities and Mathematics Difficulties: A Meta-Analysis

ERIC Educational Resources Information Center

Jitendra, Asha K.; Lein, Amy E.; Im, Soo-hyun; Alghamdi, Ahmed A.; Hefte, Scott B.; Mouanoutoua, John

2018-01-01

This meta-analysis is the first to provide a quantitative synthesis of empirical evaluations of mathematical intervention programs implemented in secondary schools for students with learning disabilities and mathematics difficulties. Included studies used a treatment-control group design. A total of 19 experimental and quasi-experimental studies…
An Analysis of Factors Related to Receipt of Accommodations and Services by Postsecondary Students with Disabilities

ERIC Educational Resources Information Center

Newman, Lynn A.; Madaus, Joseph W.

2015-01-01

A secondary analysis of the National Longitudinal Transition Study-2 examined the relationship between demographic, disability-related, secondary school preparation, and transition planning variables and receipt of accommodations and other disability-specific services at the postsecondary level for 2,470 postsecondary students with disabilities.…
Constructing Confidence and Identities of Belonging in Mathematics at the Transition to Secondary School

ERIC Educational Resources Information Center

Darragh, Lisa

2013-01-01

This case study investigates students' perspectives on their mathematics learning experiences and identity constructions, in the context of transition to secondary school. In-depth, semi-structured interviews were conducted with six girls, halfway through their first year at their new school. Thematic analysis and discourse analysis were used to…
Programmed Instruction in Secondary Education: A Meta-Analysis of the Impact of Class Size on Its Effectiveness.

ERIC Educational Resources Information Center

Boden, Andrea; Archwamety, Teara; McFarland, Max

This review used meta-analytic techniques to integrate findings from 30 independent studies that compared programmed instruction to conventional methods of instruction at the secondary level. The meta-analysis demonstrated that programmed instruction resulted in higher achievement when compared to conventional methods of instruction (average…
Performance Management in the French System of Secondary-Teacher Training

ERIC Educational Resources Information Center

Tchibozo, Guy

2005-01-01

The present study focuses on performance analysis and performance management in teacher training in France. After a brief summary of the French system of secondary-teacher training, determinants affecting performance are analyzed. The analysis shows that three determinants--the number of external competitors, the size of a department and the…
Status of Higher Secondary School Libraries in Thiruvallur District

ERIC Educational Resources Information Center

Seenivasan, M.; Kumar, N. Ashok

2014-01-01

Libraries are the main sources of knowledge. They play a major role in fostering reading habit among school children. Hence, it is deemed interactive to study the status of higher secondary school libraries in Thiruvallur District, Tamil Nadu. For the Analysis 50 Higher Secondary Schools were selected randomly comprising of Government Higher…
Do Students in Secondary Education Manifest Sexist Attitudes?

ERIC Educational Resources Information Center

Pozo, Carmen; Martos, Maria J.; Morillejo, Enrique Alonso

2010-01-01

Introduction: Sexism and sexist attitudes can give rise to gender violence. It is therefore important to analyze these variables at an early age (in secondary school classrooms); from this analysis we will have a basis for intervention. Method: The study sample consists of 962 secondary school students. Measuring instruments were used to assess…
Understandings of Climate Change Articulated by Swedish Secondary School Students

ERIC Educational Resources Information Center

Holmqvist Olander, Mona; Olander, Clas

2017-01-01

This study investigated beliefs about climate change among Swedish secondary school students at the end of their K-12 education. An embedded mixed method approach was used to analyse 51 secondary school students' written responses to two questions: (1) What implies climate change? (2) What affects climate? A quantitative analysis of the responses…
Secondary School Teachers' Experiences of Teaching Pregnant Learners in Limpopo Province, South Africa

ERIC Educational Resources Information Center

Matlala, Sogo F.; Nolte, A. G. W.; Temane, M. A.

2014-01-01

This paper presents the findings of a study on the experiences of secondary school teachers on teaching pregnant learners in Limpopo Province. A qualitative, exploratory, descriptive and contextual design was used. Semi-structured interviews were conducted with ten purposively selected secondary school teachers. Data analysis yielded six themes,…
Pedagogical Applications from Real Analysis for Secondary Mathematics Teachers

ERIC Educational Resources Information Center

Wasserman, Nicholas; Weber, Keith

2017-01-01

In this article, we consider the potential influences of the study of proofs in advanced mathematics on secondary mathematics teaching. Thus far, the literature has highlighted the benefits of applying the conclusions of particular proofs to secondary content and of developing a more general sense of disciplinary practices in mathematics in…
Effectiveness of a Satellite Educational Television Program for Ethiopian Secondary Education

ERIC Educational Resources Information Center

Kim, Sung-Wan

2015-01-01

This study examined the actual practice and effectiveness of a satellite educational TV program in Ethiopian secondary schools. Participants in the survey were 228 students and 63 teachers from secondary schools. The results of the data analysis indicate that Ethiopian students and teachers scored highly in the evaluation areas. Levels of…
Secondary School Mathematics Curriculum Improvement Study Information Bulletin 7.

ERIC Educational Resources Information Center

Secondary School Mathematics Curriculum Improvement Study, New York, NY.

The background, objectives, and design of Secondary School Mathematics Curriculum Improvement Study (SSMCIS) are summarized. Details are given of the content of the text series, "Unified Modern Mathematics," in the areas of algebra, geometry, linear algebra, probability and statistics, analysis (calculus), logic, and computer…
An Analysis of Foster Care Placement History and Post-Secondary Graduation Rates

ERIC Educational Resources Information Center

Day, Angelique; Dworsky, Amy; Feng, Wenning

2013-01-01

Prior research has document significant disparities in post-secondary educational attainment between young adults who had been in foster care and their peers in the general population. This study uses survival analysis to compare the four-year college graduation rate of students who had been in foster care to the graduation rate of first…
Eighth Grade In-Service Teachers' Knowledge of Proportional Reasoning and Functions: A Secondary Data Analysis

ERIC Educational Resources Information Center

Masters, Jessica

2012-01-01

A secondary data analysis was conducted using a large dataset from a study related to online professional development for eighth grade teachers of mathematics. Using this data, the paper provides a snapshot of the current state of teachers' knowledge related to proportional reasoning and functions. The paper also considers how teachers' knowledge…
The Relationship between Parental Involvement and Urban Secondary School Student Academic Achievement: A Meta-Analysis

ERIC Educational Resources Information Center

Jeynes, William H.

2007-01-01

A meta-analysis is undertaken, including 52 studies, to determine the influence of parental involvement on the educational outcomes of urban secondary school children. Statistical analyses are done to determine the overall impact of parental involvement as well as specific components of parental involvement. Four different measures of educational…
SYSTEMS ANALYSIS AND SYNTHESIS APPLIED TO OCCUPATIONAL INSTRUCTION IN SECONDARY SCHOOLS.

ERIC Educational Resources Information Center

SILVERN, LEONARD C.

GOAL OF THIS STUDY WAS TO DETERMINE THE FEASIBILITY OF DEVELOPING A MODEL TO DESCRIBE "REAL-LIFE" FEEDBACK SIGNAL PATHS FROM OUTSIDE THE SECONDARY SCHOOL OR SCHOOL DISTRICT TO AN OCCUPATIONAL TEACHER. AFTER A REVIEW AND EVALUATION OF THE LITERATURE IN SYSTEMS ANALYSIS AND SYNTHESIS SINCE 1914, IT WAS CONCLUDED THAT ATTENTION SHOULD BE DIRECTED TO…
Secondary Analysis of the "Love Me...Never Shake Me" SBS Education Program

ERIC Educational Resources Information Center

Deyo, Grace; Skybo, Theresa; Carroll, Alisa

2008-01-01

Objective: Shaken baby syndrome (SBS) is preventable; however, an estimated 21-74 per 100,000 children worldwide are victims annually. This study examined the effectiveness of an SBS prevention program in the US. Methods: A descriptive, secondary analysis of the Prevent Child Abuse Ohio (PCAO) "Love Me...Never Shake Me" SBS education program…
Incorporating multiple secondary targets into learning trials for individuals with autism spectrum disorder.

PubMed

Nottingham, Casey L; Vladescu, Jason C; Kodak, Tiffany; Kisamore, April N

2017-07-01

The current study examined the outcome of presenting multiple secondary targets in learning trials for individuals with autism spectrum disorder. We compared conditions in which (a) a secondary target was presented in the antecedent and consequence of trials, (b) two secondary targets were presented in the consequence of trials, (c) one secondary target was presented in the consequence of each trial, and (d) no additional targets were presented trials. The participants acquired the majority of secondary targets. Presenting one or multiple secondary targets per trial, regardless of the location of these secondary targets, increased the efficiency of instruction in comparison to a condition with no secondary target. © 2017 Society for the Experimental Analysis of Behavior.

Comparative Study on the Senior Secondary School Mathematics Curricula Development in Ethiopia and Australia

ERIC Educational Resources Information Center

Meleta, Fufa E.; Zhang, Weizhong

2017-01-01

The main objective of this study is to compare the process of the senior secondary school mathematics curricula development in Ethiopia and Australia. The study was investigated qualitatively with document analysis and semi-structured interview research methods. The documents were collected from Federal Democratic Republic of Ethiopia Ministry of…
RNA-SSPT: RNA Secondary Structure Prediction Tools.

PubMed

Ahmad, Freed; Mahboob, Shahid; Gulzar, Tahsin; Din, Salah U; Hanif, Tanzeela; Ahmad, Hifza; Afzal, Muhammad

2013-01-01

The prediction of RNA structure is useful for understanding evolution for both in silico and in vitro studies. Physical methods like NMR studies to predict RNA secondary structure are expensive and difficult. Computational RNA secondary structure prediction is easier. Comparative sequence analysis provides the best solution. But secondary structure prediction of a single RNA sequence is challenging. RNA-SSPT is a tool that computationally predicts secondary structure of a single RNA sequence. Most of the RNA secondary structure prediction tools do not allow pseudoknots in the structure or are unable to locate them. Nussinov dynamic programming algorithm has been implemented in RNA-SSPT. The current studies shows only energetically most favorable secondary structure is required and the algorithm modification is also available that produces base pairs to lower the total free energy of the secondary structure. For visualization of RNA secondary structure, NAVIEW in C language is used and modified in C# for tool requirement. RNA-SSPT is built in C# using Dot Net 2.0 in Microsoft Visual Studio 2005 Professional edition. The accuracy of RNA-SSPT is tested in terms of Sensitivity and Positive Predicted Value. It is a tool which serves both secondary structure prediction and secondary structure visualization purposes.
RNA-SSPT: RNA Secondary Structure Prediction Tools

PubMed Central

Ahmad, Freed; Mahboob, Shahid; Gulzar, Tahsin; din, Salah U; Hanif, Tanzeela; Ahmad, Hifza; Afzal, Muhammad

2013-01-01

The prediction of RNA structure is useful for understanding evolution for both in silico and in vitro studies. Physical methods like NMR studies to predict RNA secondary structure are expensive and difficult. Computational RNA secondary structure prediction is easier. Comparative sequence analysis provides the best solution. But secondary structure prediction of a single RNA sequence is challenging. RNA-SSPT is a tool that computationally predicts secondary structure of a single RNA sequence. Most of the RNA secondary structure prediction tools do not allow pseudoknots in the structure or are unable to locate them. Nussinov dynamic programming algorithm has been implemented in RNA-SSPT. The current studies shows only energetically most favorable secondary structure is required and the algorithm modification is also available that produces base pairs to lower the total free energy of the secondary structure. For visualization of RNA secondary structure, NAVIEW in C language is used and modified in C# for tool requirement. RNA-SSPT is built in C# using Dot Net 2.0 in Microsoft Visual Studio 2005 Professional edition. The accuracy of RNA-SSPT is tested in terms of Sensitivity and Positive Predicted Value. It is a tool which serves both secondary structure prediction and secondary structure visualization purposes. PMID:24250115
Different Aspects of Secondary School Students' Mental Frameworks Related to Concept of Scientist

ERIC Educational Resources Information Center

Karaçam, Sedat

2015-01-01

The aim of this study is to examine secondary school students' images and conceptualisations about scientists by contextual data analysis, and to determine relationships between them. The respondents were 356 students attending 6th and 7th grades of secondary school in Duzce. Tests were conducted during 2013-2014 academic year. Students' images…
Analysis of Narrative Texts in Secondary School Textbooks in Terms of Values Education

ERIC Educational Resources Information Center

Sallabas, Muhammed Eyyup

2013-01-01

Texts have a crucial place in language education and probably they are the most important means of education. Students at the primary and secondary education ages mostly read narrative texts like short stories, poems and fictional books. This study attempts to assess value transfer in narrative texts at the secondary education textbooks. Our study…
Beyond the Education Silo? Tackling Adolescent Secondary Education in Rural India

ERIC Educational Resources Information Center

Kelly, Orla; Bhabha, Jacqueline

2014-01-01

In this paper we examine the factors contributing to gender inequality in secondary schooling in India by critically reviewing the government's secondary education policy. Drawing on the findings of a study in rural Gujarat, we couple this analysis with an examination of the gendered dynamics that restrict girls' ability to fully benefit from the…
Analysis of Secondary School Students' Perceptions about Information Technologies through a Word Association Test

ERIC Educational Resources Information Center

Eren, Fetah; Sahin, Ismail; Celik, Ismail; Akturk, Ahmet Oguz

2014-01-01

The aim of this study is to discover secondary school students' perceptions related to information technologies and the connections between concepts in their cognitive structures. A word association test consisting of six concepts related to information technologies is used to collect data from 244 secondary school students. Concept maps that…
A Comparative Analysis regarding Pictures Included in Secondary School Geography Textbooks Taught in Turkey

ERIC Educational Resources Information Center

Yasar, Okan; Seremet, Mehmet

2007-01-01

This study brings in a comparative approach regarding pictures involved in secondary school (14-17 ages) textbooks taught in Turkey. In this respect, following the classification of pictures (line drawings and photographs) included in secondary school education geography textbooks, evaluation of the photographs in books in question in terms of…
Secondary-Task Effects on Learning with Multimedia: An Investigation through Eye-Movement Analysis

ERIC Educational Resources Information Center

Acarturk, Cengiz; Ozcelik, Erol

2017-01-01

This study investigates secondary-task interference on eye movements through learning with multimedia. We focus on the relationship between the influence of the secondary task on the eye movements of learners, and the learning outcomes as measured by retention, matching, and transfer. Half of the participants performed a spatial tapping task while…
Transcriptome Analysis of the Signalling Networks in Coronatine-Induced Secondary Laticifer Differentiation from Vascular Cambia in Rubber Trees

PubMed Central

Wu, Shaohua; Zhang, Shixin; Chao, Jinquan; Deng, Xiaomin; Chen, Yueyi; Shi, Minjing; Tian, Wei-Min

2016-01-01

The secondary laticifer in rubber tree (Hevea brasiliensis Muell. Arg.) is a specific tissue within the secondary phloem. This tissue differentiates from the vascular cambia, and its function is natural rubber biosynthesis and storage. Given that jasmonates play a pivotal role in secondary laticifer differentiation, we established an experimental system with jasmonate (JA) mimic coronatine (COR) for studying the secondary laticifer differentiation: in this system, differentiation occurs within five days of the treatment of epicormic shoots with COR. In the present study, the experimental system was used to perform transcriptome sequencing and gene expression analysis. A total of 67,873 unigenes were assembled, and 50,548 unigenes were mapped at least in one public database. Of these being annotated unigenes, 15,780 unigenes were differentially expressed early after COR treatment, and 19,824 unigenes were differentially expressed late after COR treatment. At the early stage, 8,646 unigenes were up-regulated, while 7,134 unigenes were down-regulated. At the late stage, the numbers of up- and down-regulated unigenes were 7,711 and 12,113, respectively. The annotation data and gene expression analysis of the differentially expressed unigenes suggest that JA-mediated signalling, Ca2+ signal transduction and the CLAVATA-MAPK-WOX signalling pathway may be involved in regulating secondary laticifer differentiation in rubber trees. PMID:27808245
Transition from Senior Secondary to Tertiary Languages Study: Student Attitudes in Three Sydney Schools

ERIC Educational Resources Information Center

Moloney, Robyn; Harbon, Lesley

2014-01-01

This paper reports on a small study of attitudes to tertiary language study amongst senior secondary language learners in three independent New South Wales schools. The study examines what elements of preparedness may be the most effective in supporting transition to tertiary study for this sample of languages students. An analysis of survey data…
A Study on Components of Internal Control-Based Administrative System in Secondary Schools

ERIC Educational Resources Information Center

Montri, Paitoon; Sirisuth, Chaiyuth; Lammana, Preeda

2015-01-01

The aim of this study was to study the components of the internal control-based administrative system in secondary schools, and make a Confirmatory Factor Analysis (CFA) to confirm the goodness of fit of empirical data and component model that resulted from the CFA. The study consisted of three steps: 1) studying of principles, ideas, and theories…
Using Material Authenticity in the Saudi English Textbook Design: A Content Analysis from the Viewpoint of EFL Teachers

ERIC Educational Resources Information Center

Alshumaimeri, Yousif A.; Alzyadi, Maha S.

2015-01-01

This study attempts to identify the extent of using authentic materials in the new series of secondary English textbooks ("Flying High for Saudi Arabia") used currently in Saudi schools. Therefore, a content analysis instrument has been designed to analyze the first secondary English textbook. The instrument has been distributed on 112…
Construction and Validation of the Career and Educational Decision Self-Efficacy Inventory for Secondary Students (CEDSIS)

ERIC Educational Resources Information Center

Ho, Esther Sui Chu; Sum, Kwok Wing

2018-01-01

This study aims to construct and validate the Career and Educational Decision Self-Efficacy Inventory for Secondary Students (CEDSIS) by using a sample of 2,631 students in Hong Kong. Principal component analysis yielded a three-factor structure, which demonstrated good model fit in confirmatory factor analysis. High reliability was found for the…
An Analysis of the Social Impact of the Stipend Program for Secondary School Girls of Khyber Pakhtunkhwa

ERIC Educational Resources Information Center

Ahmed, Vaqar; Zeshan, Muhammad

2014-01-01

The present study carries out an impact analysis of a conditional cash transfer (CCT) program for secondary-school girls in seven districts of Khyber Pakhtunkhwa province in Pakistan, including Battagram, Bonair, Hangu, Kohistan, Shangla, Tank, and Upper Dir. In 2012 we collected household-level primary data and used a probit model for…
At the intersection of culture and religion: a cultural analysis of religion's implications for secondary control and social affiliation.

PubMed

Sasaki, Joni Y; Kim, Heejung S

2011-08-01

Religion helps people maintain a sense of control, particularly secondary control-acceptance of and adjustment to difficult situations--and contributes to strengthening social relationships in a religious community. However, little is known about how culture may influence these effects. The current research examined the interaction of culture and religion on secondary control and social affiliation, comparing people from individualistic cultures (e.g., European Americans), who tend to be more motivated toward personal agency, and people from collectivistic cultures (e.g., East Asians), who tend to be more motivated to maintain social relationships. In Study 1, an analysis of online church mission statements showed that U.S. websites contained more themes of secondary control than did Korean websites, whereas Korean websites contained more themes of social affiliation than did U.S. websites. Study 2 showed that experimental priming of religion led to acts of secondary control for European Americans but not Asian Americans. Using daily diary methodology, Study 3 showed that religious coping predicted more secondary control for European Americans but not Koreans, and religious coping predicted more social affiliation for Koreans and European Americans. These findings suggest the importance of understanding sociocultural moderators for the effects of religion.
Analysis of the Chemical Representations in Secondary Lebanese Chemistry Textbooks

ERIC Educational Resources Information Center

Shehab, Saadeddine Salim; BouJaoude, Saouma

2017-01-01

This study focused on the requirements that chemical representations should meet in textbooks in order to enhance conceptual understanding. Specifically, the purpose of this study was to evaluate the chemical representations that are present in 7 secondary Lebanese chemistry textbooks. To achieve the latter purpose, an instrument adapted from…
The development of leadership outcome-indicators evaluating the contribution of clinical specialists and advanced practitioners to health care: a secondary analysis.

PubMed

Elliott, Naomi; Begley, Cecily; Kleinpell, Ruth; Higgins, Agnes

2014-05-01

To report a secondary analysis of data collected from the case study phase of a national study of advanced practitioners and to develop leadership outcome-indicators appropriate for advanced practitioners. In many countries, advanced practitioners in nursing and midwifery have responsibility as leaders for health care development, but without having leadership outcome measures available they are unable to demonstrate the results of their activities. In Ireland, a sequential mixed method research study was used to develop a validated tool for the evaluation of clinical specialists and advanced practitioners. Despite strong evidence of leadership activities, few leadership-specific outcomes were generated from the primary analysis. Secondary analysis of a multiple case study data set. Data set comprised 23 case studies of advanced practitioner/clinical specialists from 13 sites across each region in Ireland from all divisions of the Nursing Board Register. Data were collected 2008-2010. Data sources included non-participant observation (n = 92 hours) of advanced practitioners in practice, interviews with clinicians (n = 21), patients (n = 20) and directors of nursing/midwifery (n = 13) and documents. Analysis focused on leadership outcome-indicator development in line with the National Health Service's Good Indicators Guide. The four categories of leadership outcomes for advanced practitioner developed were as follows: (i) capacity and capability building of multidisciplinary team; (ii) measure of esteem; (iii) new initiatives for clinical practice and healthcare delivery; and (iv) clinical practice based on evidence. The proposed set of leadership outcome-indicators derived from a secondary analysis captures the complexity of leadership in practice. They add to existing clinical outcomes measuring advanced practice. © 2013 John Wiley & Sons Ltd.
Incentivizing advanced mathematics study at upper secondary level: the case of bonus points in Ireland

NASA Astrophysics Data System (ADS)

Treacy, Páraic Thomas

2018-04-01

Secondary level mathematics education in Ireland has recently experienced a period of significant change with the introduction of new curricula and the addition of an incentive to study upper secondary mathematics at the most advanced level (Higher Level). This incentive, typically referred to as 'bonus points', appears to have aided a significant increase in the number of students studying upper secondary mathematics at Higher Level. However, thematic analysis of interviews with experienced upper secondary mathematics examiners and exploration of mathematics diagnostic test data outlined in this paper suggest that the difficulty of the Higher Level upper secondary mathematics final examination in Ireland has reduced since the introduction of the bonus points initiative. The sharp increase in students attempting this examination coupled with a policy of maintaining a consistent proportion of students achieving passing grades was identified as a key reason for this possible reduction in standards.
Expectations versus Reality: The Case of Liberal Studies in Hong Kong's New Senior Secondary Reforms

ERIC Educational Resources Information Center

Fung, Dennis

2016-01-01

This article reports the findings of a five-year longitudinal study investigating the introduction of Liberal Studies in the context of Hong Kong's new senior secondary educational reforms. The aim of this empirical research, which adopted diachronic analysis to allow comparisons over time, was to compare teachers' and students' perceptions of the…

Analysis of Social Sciences High School Students' Remarks on Underground Resources--Kütahya Sample

ERIC Educational Resources Information Center

Hilmi, Sahin Suleyman

2016-01-01

The purpose of this study is to explain secondary school students' perceptions of underground resources through metaphors. 154 students studying at Social Sciences High School of Kütahya during 2014-2015 educational year are included in this study. Questions asked in this study are (1) Which metaphors did the secondary school students use in order…
Neural correlates of dual-task effect on belief-bias syllogistic reasoning: a near-infrared spectroscopy study.

PubMed

Tsujii, Takeo; Watanabe, Shigeru

2009-09-01

Recent dual-process reasoning theories have explained the belief-bias effect, the tendency for human reasoning to be erroneously biased when logical conclusions are incongruent with beliefs about the world, by proposing a belief-based automatic heuristic system and logic-based demanding analytic system. Although these claims are supported by the behavioral finding that high-load secondary tasks enhance the belief-bias effect, the neural correlates of dual-task reasoning remain unknown. The present study therefore examined the relationship between dual-task effect and activity in the inferior frontal cortex (IFC) during belief-bias reasoning by near-infrared spectroscopy (NIRS). Forty-eight subjects participated in this study (MA=23.46 years). They were required to perform congruent and incongruent reasoning trials while responding to high- and low-load secondary tasks. Behavioral analysis showed that the high-load secondary task impaired only incongruent reasoning performance. NIRS analysis found that the high-load secondary task decreased right IFC activity during incongruent trials. Correlation analysis showed that subjects with enhanced right IFC activity could perform better in the incongruent reasoning trials, though subjects for whom right IFC activity was impaired by the secondary task could not maintain better reasoning performance. These findings suggest that the right IFC may be responsible for the dual-task effect in conflicting reasoning processes. When secondary tasks impair right IFC activity, subjects may rely on the automatic heuristic system, which results in belief-bias responses. We therefore offer the first demonstration of neural correlates of dual-task effect on IFC activity in belief-bias reasoning.
Live imaging of mouse secondary palate fusion

PubMed Central

Kim, Seungil; Prochazka, Jan; Bush, Jeffrey O.

2017-01-01

LONG ABSTRACT The fusion of the secondary palatal shelves to form the intact secondary palate is a key process in mammalian development and its disruption can lead to cleft secondary palate, a common congenital anomaly in humans. Secondary palate fusion has been extensively studied leading to several proposed cellular mechanisms that may mediate this process. However, these studies have been mostly performed on fixed embryonic tissues at progressive timepoints during development or in fixed explant cultures analyzed at static timepoints. Static analysis is limited for the analysis of dynamic morphogenetic processes such a palate fusion and what types of dynamic cellular behaviors mediate palatal fusion is incompletely understood. Here we describe a protocol for live imaging of ex vivo secondary palate fusion in mouse embryos. To examine cellular behaviors of palate fusion, epithelial-specific Keratin14-cre was used to label palate epithelial cells in ROSA26-mTmGflox reporter embryos. To visualize filamentous actin, Lifeact-mRFPruby reporter mice were used. Live imaging of secondary palate fusion was performed by dissecting recently-adhered secondary palatal shelves of embryonic day (E) 14.5 stage embryos and culturing in agarose-containing media on a glass bottom dish to enable imaging with an inverted confocal microscope. Using this method, we have detected a variety of novel cellular behaviors during secondary palate fusion. An appreciation of how distinct cell behaviors are coordinated in space and time greatly contributes to our understanding of this dynamic morphogenetic process. This protocol can be applied to mutant mouse lines, or cultures treated with pharmacological inhibitors to further advance understanding of how secondary palate fusion is controlled. PMID:28784960
Numerical analysis of exhaust jet secondary combustion in hypersonic flow field

NASA Astrophysics Data System (ADS)

Yang, Tian-Peng; Wang, Jiang-Feng; Zhao, Fa-Ming; Fan, Xiao-Feng; Wang, Yu-Han

2018-05-01

The interaction effect between jet and control surface in supersonic and hypersonic flow is one of the key problems for advanced flight control system. The flow properties of exhaust jet secondary combustion in a hypersonic compression ramp flow field were studied numerically by solving the Navier-Stokes equations with multi-species and combustion reaction effects. The analysis was focused on the flow field structure and the force amplification factor under different jet conditions. Numerical results show that a series of different secondary combustion makes the flow field structure change regularly, and the temperature increases rapidly near the jet exit.
An Analysis of Articles about Turkish Primary and Secondary School Curriculum Changes between 2005-2013

ERIC Educational Resources Information Center

Günes, Gönül

2015-01-01

This study examined the articles about primary and secondary curriculum changes in Turkey, published between 2005-2013 Turkish education journals indexed in SSCI and National Academic Network Information Center (ULAKBIM) databases. Its purpose was to determine the tendencies regarding the following characteristics of the studies: distribution…
Problem Solving Strategies of Selected Pre-Service Secondary School Mathematics Teachers in Malaysia

ERIC Educational Resources Information Center

Yew, Wun Theam; Zamri, Sharifah Norul Akmar Syed

2016-01-01

Problem solving strategies of eight pre-service secondary school mathematics teachers (PSSMTs) were examined in this study. A case study research design was employed and clinical interview technique was used to collect the data. Materials collected for analysis consisted of audiotapes and videotapes of clinical interviews, subjects' notes and…
An Analysis of the Relation between Secondary School Organizational Climate and Teacher Job Satisfaction

ERIC Educational Resources Information Center

Xiaofu, Pan; Qiwen, Qin

2007-01-01

This study investigates and analyzes the relation between the secondary school organizational climate and teacher job satisfaction using a self-designed school organizational climate scale based on studies in China and abroad. The findings show that except for interpersonal factors there are significant correlations between the various factors of…
Impact of E-Learning and Digitalization in Primary and Secondary Schools

ERIC Educational Resources Information Center

Tunmibi, Sunday; Aregbesola, Ayooluwa; Adejobi, Pascal; Ibrahim, Olaniyi

2015-01-01

This study examines into the impact of e-learning and digitalization in primary and secondary schools, using Greensprings School in Lagos State, Nigeria as a case study. Questionnaire was used as a data collection instrument, and descriptive statistical method was adopted for analysis. Responses from students and teachers reveal that application…
An Exploration of Secondary School Counselors' Experiences Engaging in Group Work

ERIC Educational Resources Information Center

Williams, Chinwe U.; McMahon, H. George; McLeod, Amy L.; Rice, Robert

2013-01-01

The purpose of this study is to understand the experiences of secondary school counselors who develop and lead groups. The study explored participants' perceptions and their motivations for leading groups. Findings from data analysis revealed four major themes. Unappreciated and Dismissed describes the way participants felt in response to the…
An Analysis of Secondary School Principals' Perceptions of Multicultural Education.

ERIC Educational Resources Information Center

McCray, Carlos R.; Wright, James V.; Beachum, Floyd D.

2004-01-01

The purpose of this study was to investigate secondary school principals' perceptions of multicultural education. This survey research study used a four point Likert-type scale instrument. It sought to determine how such independent variables as school and community characteristics i.e., whether the school was located in an urban, suburban, or…
Constraints on primary and secondary particulate carbon sources using chemical tracer and 14C methods during CalNex-Bakersfield

EPA Science Inventory

The present study investigates primary and secondary sources of organic carbon for Bakersfield, CA, USA as part of the 2010 CalNex study. The method used here involves integrated sampling that is designed to allow for detailed and specific chemical analysis of particulate matter ...
The Elementary and Secondary Education Act: A Distributional Analysis.

ERIC Educational Resources Information Center

Barkin, David; Hettich, Walter

This study analyzes interstate redistribution of Federal tax money under Title One of the Elementary and Secondary Education Act of 1965. First, the consistency of the criteria used to distribute funds is studied to see if people of similar financial positions are treated "qually. Results show that when compared with an alternative--the…
An Analysis of Gateway Technical College Instructors' Opinions on Secondary and Postsecondary Program Alignment

ERIC Educational Resources Information Center

Albrecht, Bryan D.

2011-01-01

The purpose of this study was to determine what opinions Gateway Technical College instructors had toward secondary and postsecondary program alignment. Student transition is critical to supporting the mission and vision of Gateway Technical College. The impetus for this study was twofold. First, the quality improvement process established at…
Event-related potentials and secondary task performance during simulated driving.

PubMed

Wester, A E; Böcker, K B E; Volkerts, E R; Verster, J C; Kenemans, J L

2008-01-01

Inattention and distraction account for a substantial number of traffic accidents. Therefore, we examined the impact of secondary task performance (an auditory oddball task) on a primary driving task (lane keeping). Twenty healthy participants performed two 20-min tests in the Divided Attention Steering Simulator (DASS). The visual secondary task of the DASS was replaced by an auditory oddball task to allow recording of brain activity. The driving task and the secondary (distracting) oddball task were presented in isolation and simultaneously, to assess their mutual interference. In addition to performance measures (lane keeping in the primary driving task and reaction speed in the secondary oddball task), brain activity, i.e. event-related potentials (ERPs), was recorded. Performance parameters on the driving test and the secondary oddball task did not differ between performance in isolation and simultaneous performance. However, when both tasks were performed simultaneously, reaction time variability increased in the secondary oddball task. Analysis of brain activity indicated that ERP amplitude (P3a amplitude) related to the secondary task, was significantly reduced when the task was performed simultaneously with the driving test. This study shows that when performing a simple secondary task during driving, performance of the driving task and this secondary task are both unaffected. However, analysis of brain activity shows reduced cortical processing of irrelevant, potentially distracting stimuli from the secondary task during driving.
Qualitative Secondary Analysis: A Case Exemplar.

PubMed

Tate, Judith Ann; Happ, Mary Beth

Qualitative secondary analysis (QSA) is the use of qualitative data that was collected by someone else or was collected to answer a different research question. Secondary analysis of qualitative data provides an opportunity to maximize data utility, particularly with difficult-to-reach patient populations. However, qualitative secondary analysis methods require careful consideration and explicit description to best understand, contextualize, and evaluate the research results. In this article, we describe methodologic considerations using a case exemplar to illustrate challenges specific to qualitative secondary analysis and strategies to overcome them. Copyright © 2017 National Association of Pediatric Nurse Practitioners. Published by Elsevier Inc. All rights reserved.
Primary care organisational interventions for secondary prevention of ischaemic heart disease: a systematic review and meta-analysis.

PubMed

Murphy, Edel; Vellinga, Akke; Byrne, Molly; Cupples, Margaret E; Murphy, Andrew W; Buckley, Brian; Smith, Susan M

2015-07-01

Ischaemic heart disease (IHD) is the most common cause of death worldwide. To determine the long-term impact of organisational interventions for secondary prevention of IHD. Systematic review and meta-analysis of studies from CENTRAL, MEDLINE(®), Embase, and CINAHL published January 2007 to January 2013. Searches were conducted for randomised controlled trials of patients with established IHD, with long-term follow-up, of cardiac secondary prevention programmes targeting organisational change in primary care or community settings. A random-effects model was used and risk ratios were calculated. Five studies were included with 4005 participants. Meta-analysis of four studies with mortality data at 4.7-6 years showed that organisational interventions were associated with approximately 20% reduced mortality, with a risk ratio (RR) for all-cause mortality of 0.79 (95% confidence interval [CI] = 0.66 to 0.93), and a RR for cardiac-related mortality of 0.74 (95% CI = 0.58 to 0.94). Two studies reported mortality data at 10 years. Analysis of these data showed no significant differences between groups. There were insufficient data to conduct a meta-analysis on the effect of interventions on hospital admissions. Additional analyses showed no significant association between organisational interventions and risk factor management or appropriate prescribing at 4.7-6 years. Cardiac secondary prevention programmes targeting organisational change are associated with a reduced risk of death for at least 4-6 years. There is insufficient evidence to conclude whether this beneficial effect is maintained indefinitely. © British Journal of General Practice 2015.
Secondary Trauma and Job Burnout and Associated Factors among HIV Lay Counsellors in Nkangala District, South Africa

ERIC Educational Resources Information Center

Peltzer, Karl; Matseke, Gladys; Louw, Julia

2014-01-01

The aim of this study was to evaluate secondary trauma and job burnout and associated factors in a sample of 71 HIV lay counsellors in South Africa. Results indicate that 49.5% were not satisfied with their work environment and 51.4% were potentially secondary traumatic stress cases. In univariate analysis, seeing more HIV counselling and testing…
Automation and Its Funding in the Library Media Centers in Secondary Schools in Georgia: A Survey.

ERIC Educational Resources Information Center

Baggett, Ann Utsey

This report presents the results of a study whose purpose was to determine what automation is present in the library media centers in Georgia secondary schools and how it has been funded. A three-part questionnaire was sent to the media specialists in 50% of the secondary schools in Georgia, which were randomly selected. The analysis of the…
Text-Based Argumentation with Multiple Sources: A Descriptive Study of Opportunity to Learn in Secondary English Language Arts, History, and Science

ERIC Educational Resources Information Center

Litman, Cindy; Marple, Stacy; Greenleaf, Cynthia; Charney-Sirott, Irisa; Bolz, Michael J.; Richardson, Lisa K.; Hall, Allison H.; George, MariAnne; Goldman, Susan R.

2017-01-01

This study presents a descriptive analysis of 71 videotaped lessons taught by 34 highly regarded secondary English language arts, history, and science teachers, collected to inform an intervention focused on evidence-based argumentation from multiple text sources. Studying the practices of highly regarded teachers is valuable for identifying…
Analysis of Errors Committed by Physics Students in Secondary Schools in Ilorin Metropolis, Nigeria

ERIC Educational Resources Information Center

Omosewo, Esther Ore; Akanbi, Abdulrasaq Oladimeji

2013-01-01

The study attempt to find out the types of error committed and influence of gender on the type of error committed by senior secondary school physics students in metropolis. Six (6) schools were purposively chosen for the study. One hundred and fifty five students' scripts were randomly sampled for the study. Joint Mock physics essay questions…

Textbooks Content Analysis of Social Studies and Natural Sciences of Secondary School Based on Emotional Intelligence Components

ERIC Educational Resources Information Center

Babaei, Bahare; Abdi, Ali

2014-01-01

The aim of this study is to analyze the content of social studies and natural sciences textbooks of the secondary school on the basis of the emotional intelligence components. In order to determine and inspect the emotional intelligence components all of the textbooks content (including texts, exercises, and illustrations) was examined based on…
Teacher Professional Experience and Performance: Impact of the Work Environment and General Welfare in Malaysian Secondary Schools

ERIC Educational Resources Information Center

Malakolunthu, Suseela; Idris, Abdul Rahman; Rengasamy, Nagappan C.

2010-01-01

This study investigated the work environment and general welfare of the Malaysian secondary school teachers. Past studies have explicated that the experience of work environment and general welfare exerted a direct influence on the performance of the teachers, hence student outcome. In the factor analysis, the study identified six factors, namely…
Can After-School Programs and Private Tutoring Help Improve Students' Achievement? Revisiting the Effects in Korean Secondary Schools

ERIC Educational Resources Information Center

Ha, Yeojin; Park, Hyun-Jeong

2017-01-01

The purpose of this study is to examine the causal effects of after-school programs (ASPs) and private tutoring on Korean secondary school students' academic achievement. The students' data from the Gyeonggi Education Panel Study were used in this study for the actual data analysis. The study attempted to adjust for possible selection bias toward…
Systematic Analysis and Interpretation of Collected Data for a Research Study: A Practical Methodological Framework for Writing Research Report

ERIC Educational Resources Information Center

Boaduo, Nana Adu-Pipim

2011-01-01

Two basic data sources required for research studies have been secondary and primary. Secondary data collection helps the researcher to provide relevant background to the study and are, in most cases, available for retrieval from recorded sources. Primary data collection requires the researcher to venture into the field where the study is to take…
Cross-sectional and longitudinal associations of screen time and physical activity with school performance at different types of secondary school.

PubMed

Poulain, Tanja; Peschel, Thomas; Vogel, Mandy; Jurkutat, Anne; Kiess, Wieland

2018-04-27

Previous studies have already reported associations of media consumption and/or physical activity with school achievement. However, longitudinal studies investigating independent effects of physical activity and media consumption on school performance are sparse. The present study fills this research gap and, furthermore, assesses relationships of the type of secondary school with media consumption and physical activity. The consumption of screen-based media (TV/video, game console, PC/internet, and mobile phone) and leisure physical activity (organized and non-organized) of 10 - to 17-year old adolescents participating in the LIFE Child study in Germany were related to their school grades in two major school subjects (Mathematics and German) and in Physical Education. In addition to a cross-sectional analysis at baseline (N = 850), a longitudinal analysis (N = 512) investigated the independent effects of these activities on the school grades achieved 12 months later. All associations were adjusted for age, gender, socio-economic status, year of data assessment, body-mass-index, and school grades at baseline. A further analysis investigated differences in the consumption of screen-based media and physical activity as a function of the type of secondary school (highest vs. lower secondary school). Adolescents of lower secondary schools reported a significantly higher consumption of TV/video and game consoles than adolescents attending the highest secondary school. Independently of the type of school, a better school performance in Mathematics was predicted by a lower consumption of computers/internet, and a better performance in Physical Education was predicted by a lower consumption of TV/video and a higher frequency of non-organized physical activity. However, the association between non-organized physical activity and subsequent grades in Physical Education was significant in girls only. The present results suggest that media consumption has a negative effect on school achievement, whereas physical activity has a positive effect, which, however, is restricted to the subject Physical Education. Future studies might explore the relationship between media consumption and school career, for example, the choice or change of the secondary school type, in more detail. LIFE Child study: ClinicalTrials.gov, clinical trial number NCT02550236.
Impact of Secondary Prevention on Mortality after a First Ischemic Stroke in Puerto Rico.

PubMed

Rojas, Maria E; Marsh, Wallace; Felici-Giovanini, Marcos E; Rodríguez-Benitez, Rosa J; Zevallos, Juan C

2017-03-01

The objective of this study was to evaluate the impact of the prescription of secondary prevention therapies on mortality in Puerto Rican patients hospitalized with a first ischemic stroke. This was a retrospective secondary data analysis of the 2007 and 2009 Puerto Rico Stroke Registry electronic database. Information was obtained from the medical charts of patients discharged with ICD-9 codes 434 and 436 from 20 hospitals located in Puerto Rico. Descriptive analyses were conducted for demographics and comorbidities. Chi2 statistics compared the proportion of patients prescribed secondary prevention therapy and the proportion of patients not prescribed secondary prevention therapy. Lastly, survival rates were calculated from 2007 up to and including December 2010. The mean age of the 3,965 patients was 70 (±14) years. Secondary prevention therapy was prescribed to only 1% of the patients. The most frequent comorbidities were hypertension (85%), diabetes (52%), and hyperlipidemia (25%). The case fatality rate for patients prescribed secondary prevention therapy was 16%, compared to 26% for patients not prescribed secondary prevention therapy (p<0.01). The mean survival for stroke patients prescribed secondary preventions was 450 days (95% CI;182−718), compared to 266 days (95% CI; 244−287) for those not prescribed secondary prevention therapy (p = 0.175). A low percentage of patients with a first ischemic stroke were prescribed secondary prevention therapy. While not statistically significant, survival analysis suggests that secondary prevention therapy decreased mortality in patients with a stroke.
The classification of secondary colorectal liver cancer in human biopsy samples using angular dispersive x-ray diffraction and multivariate analysis

NASA Astrophysics Data System (ADS)

Theodorakou, Chrysoula; Farquharson, Michael J.

2009-08-01

The motivation behind this study is to assess whether angular dispersive x-ray diffraction (ADXRD) data, processed using multivariate analysis techniques, can be used for classifying secondary colorectal liver cancer tissue and normal surrounding liver tissue in human liver biopsy samples. The ADXRD profiles from a total of 60 samples of normal liver tissue and colorectal liver metastases were measured using a synchrotron radiation source. The data were analysed for 56 samples using nonlinear peak-fitting software. Four peaks were fitted to all of the ADXRD profiles, and the amplitude, area, amplitude and area ratios for three of the four peaks were calculated and used for the statistical and multivariate analysis. The statistical analysis showed that there are significant differences between all the peak-fitting parameters and ratios between the normal and the diseased tissue groups. The technique of soft independent modelling of class analogy (SIMCA) was used to classify normal liver tissue and colorectal liver metastases resulting in 67% of the normal tissue samples and 60% of the secondary colorectal liver tissue samples being classified correctly. This study has shown that the ADXRD data of normal and secondary colorectal liver cancer are statistically different and x-ray diffraction data analysed using multivariate analysis have the potential to be used as a method of tissue classification.
Gendered Distances: A Methodological Inquiry into Spatial Analysis as an Instrument for Assessing Gender Equality in Access to Secondary Schools in Mukono District, Uganda

ERIC Educational Resources Information Center

Wawro, Patrick R.

2010-01-01

This study focused on how accessibility to secondary schools in the Mukono District of Uganda is related to the sex and gender of the student and the distance that separates the student's home from the school they attend. This research is a methodological inquiry exploring the use of spatial analysis, specifically how cognitive and metric…
Effects of ecological factors on secondary metabolites and inorganic elements of Scutellaria baicalensis and analysis of geoherblism.

PubMed

Guo, Lanping; Wang, Sheng; Zhang, Ji; Yang, Guang; Zhao, Manxi; Ma, Weifeng; Zhang, Xiaobo; Li, Xuan; Han, Bangxing; Chen, Naifu; Huang, Luqi

2013-11-01

This study analyzed the effects of ecological factors on secondary metabolites of Scutellaria baicalensis using two sources: 92 individual roots of S. baicalensis from all over China, and secondary metabolites, medicinal materials and inorganic element contents obtained from the testing of 92 S. baicalensis rhizosphere soil samples. The study used environmental data from the Genuine Medicinal Material Spatial Analysis Database. Most of the chemical constituents of S. baicalensis were negatively correlated to latitude and positively correlated to temperature; generally, the contents of 21 chemical constituents were higher at low latitudes than that at high latitudes. By gradual regression analysis, it was found that the content of baicalin in S. baicalensis was negatively correlated to latitude and generally the content of inorganic elements in soil was excessively high (excluding Mg and Ca), which has a negative effect on the accumulation of chemical constituents in S. baicalensis. Based on the cluster analysis of 21 constituents, S. baicalensis from different places of origin was divided into two groups, and S. baicalensis was not genuine only in a specific small region. Within the zone from Chifeng, Inner Mongolia to Taibai, Shaanxi is suitable for accumulation of secondary metabolites of S. baicalensis and such a zone represents a suitable distribution and potential genuine producing area.
Reflection after teaching a lesson: Experiences of secondary school science teachers

NASA Astrophysics Data System (ADS)

Halstead, Melissa A.

Secondary science teachers spend most of their time planning, collaborating, and teaching, but spend little time reflecting after teaching a single lesson. The theoretical framework of the adult learning theory and the transformative learning theory was the basis of this study. This qualitative research study was conducted to understand the reflective experiences of secondary science educators after teaching a single or several lessons. The collection of data consisted of interviews from a group of purposefully selected secondary science teachers who met the criteria set forth by the researcher. Through a qualitative analysis of interviews and field notes, the researcher determined that the secondary science teachers in this study shared similar as well as different experiences regarding collaborative and individual reflection after teaching a single or several lessons. The findings from this study also suggested that secondary science educators prefer to collaboratively reflect and then reflect alone to allow for further thought. Additionally, a supportive school culture increases the secondary science teacher’s desire to engage in collaborative as well as individual reflection. The information from this study could be used to close the gaps that exist in the teacher professional development programs.
Individual and School Factors Affecting Students' Participation and Success in Higher Education

ERIC Educational Resources Information Center

Shulruf, Boaz; Hattie, John; Tumen, Sarah

2008-01-01

The purpose of this study is to identify school factors that affect students' achievements at the secondary and tertiary levels of education. The analysis included data of 9,894 students who studied in Auckland regional secondary schools in 2004. The results indicate that, although student demographic characteristics are associated with students'…
A Cross-Sectional Analysis of the Importance of Agricultural Mechanics Skills Taught

ERIC Educational Resources Information Center

Rasty, John R.; Anderson, Ryan G.

2014-01-01

In 1994, Laird conducted a study using secondary agricultural education teachers across the United States to determine the depth agricultural mechanics skills were being taught at the time, and how important those skills would be in 2004. The researchers conducted a follow up study in 2016, using secondary agricultural education teachers in Iowa…
Cooperative Office Education: Its Evolution in the Secondary Schools of the United States from 1900-1969.

ERIC Educational Resources Information Center

Donley, Audrey Bell

Using the historical, documentary analysis, and questionnaire methods of research, this study traces the development and evolution of cooperative office education in the secondary schools of the United States from 1900 through 1969. The study was organized under the following topical divisions: (1) Original of Vocational Education, (2) Development…
An Analysis of Factors Influencing Students' Academic Performance in Public and Private Secondary Schools in Rivers State-Nigeria

ERIC Educational Resources Information Center

Kalagbor, Levi Doe

2016-01-01

The study examined factors that positively influence students' academic performance in public and private secondary schools in Rivers State-Nigeria. One research question addressed the objectives and problem of the study. The instrument used for the collection of data was the "Students' Academic Performance Questionnaire" (SAPQ),…
Leadership Behaviour in High-Performing Government Boys Secondary Schools in Quetta: A Grounded Theory Analysis

ERIC Educational Resources Information Center

Bahadur, Waheed; Bano, Amir; Waheed, Zarina; Wahab, Abdul

2017-01-01

The performance of schools is highly dependent on the leadership of school heads, and, flexible leaders accelerate school performance. The purpose of this qualitative study was to examine leadership behavior in selected boys' secondary schools that are performing well. Based on multiple-case study design, four high-performing schools from Quetta…
The Professional Learning Needs and Perceptions of Secondary School Teachers: Implications for Professional Learning Community.

ERIC Educational Resources Information Center

Moore, Shawn; Shaw, Paul

This study interviewed 45 ninth-grade teachers in 4 secondary schools in Ontario, Canada, in the spring of 1997 regarding their perceptions of their professional learning needs. Respondents were part of a 3-year research and development study, "Change Frames." Analysis is based on the view that the most meaningful teacher professional…
Career Motivation of Secondary Students in STEM: A Cross-Cultural Study between Korea and Indonesia

ERIC Educational Resources Information Center

Shin, Sein; Rachmatullah, Arif; Roshayanti, Fenny; Ha, Minsu; Lee, Jun-Ki

2018-01-01

The purpose of this study was to understand the career motivation of secondary students in science, technology, engineering, and mathematics (STEM) by comparing Korean and Indonesian students. Effects of gender and educational level on students' STEM career motivation were also examined. To test for differences, we used Rasch analysis, 3-way…
Quarternary Pollen Analysis in Secondary School Ecology

ERIC Educational Resources Information Center

Slater, F. M.

1972-01-01

Describes techniques for studying historic changes in climate by analysis of pollen preserved in peat bogs. Illustrates the methodology and data analysis techniques by reference to results from English research. (AL)
Analysis of Results of Core Academic Subjects of Ghanaian Secondary Schools: Case Study of a Secondary School in Ghana

ERIC Educational Resources Information Center

McCarthy, Paul; Gyan, Emmanuel; Kwame, Baah-Korang; McCarthy, Peter

2015-01-01

Educational authorities in Ghana have generally established that the performance of school leavers especially at the pre-university level offered a large room for improvement, due to so many factors. Hence, the introduction of the New Educational Reform in 1987 which led to the new system of Senior Secondary School with the first product in 1993.…
Ventricular fibrillation in acute myocardial infarction in Spanish patients: Results of the ARIAM database.

PubMed

Ruiz-Bailén, Manuel; Aguayo de Hoyos, Eduardo; Ruiz-Navarro, Silvia; Issa-Khozouz, Ziad; Reina-Toral, Antonio; Díaz-Castellanos, Miguel Angel; Rodríguez-García, Juan-José; Torres-Ruiz, Juan Miguel; Cárdenas-Cruz, Antonio; Camacho-Víctor, Angel

2003-08-01

The aim of this study has been to investigate the factors predisposing to primary or secondary ventricular fibrillation (VF) and the prognosis in Spanish patients with acute myocardial infarction (AMI) during their admission to the intensive care unit or the coronary care unit. A retrospective, observational study. The intensive care units and coronary care units of 119 Spanish hospitals. A retrospective cohort study including all the AMI patients listed in the ARIAM registry (Analysis of Delay in Acute Myocardial Infarction), a Spanish multicenter study. The study period was January 1995 to January 2001. Factors associated with the onset of VF were studied by univariate analysis. Multivariate analysis was used to evaluate the independent factors for the onset of VF and for mortality. A total of 17,761 patients with AMI were included in the study; 964 (5.4%) developed VF (primary in 735 patients, secondary in 229). In multivariate analysis, the variables that continued to show an association with the development of VF were the Killip and Kimball class, peak creatine kinase, APACHE II score, age, and time from the onset of symptoms to the initiation of thrombolysis. The mortality in the patients with any VF was 31.8% (27.8% in patients with primary VF and 49.1% in patients with secondary VF). The development of VF is an independent predictive factor for mortality in patients with AMI, with a crude odds ratio of 5.12 (95% confidence interval, 4.41-5.95) and an adjusted odds ratio of 2.73 (95% confidence interval, 2.12-3.51). Despite the considerable improvement in the treatment of AMI in recent years, the onset of either primary or secondary VF is associated with a poor prognosis. It is usually accompanied by extensive necrosis.

Persistent Nature of Secondary Diurnal Modes of Precipitation over Oceanic and Continental Regimes

NASA Technical Reports Server (NTRS)

Yang, S.; Kuo, K.-S.; Smith, E.

2007-01-01

This investigation seeks a better understanding of the assorted mechanisms controlling the global distribution of precipitation diurnal variability based on the use of Tropical Rainfall Measuring Mission (TRMM) microwave radiometer and radar data. The horizontal distributions of precipitation's diurnal cycle are derived from eight years of TRMM Microwave Imager (TMI) and Precipitation Radar (PR) measurements involving three TRMM standard rain rate retrieval algorithms -- the resultant distributions analyzed at various spatiotemporal scales. The results reveal the prominent and expected late-evening to early-morning (LE-EM) precipitation maxima over oceans and the counterpart prominent and expected mid- to late-afternoon (MLA) maxima over continents. Moreover, and not generally recognized, the results reveal a widespread distribution of secondary maxima occurring over both oceans and continents -- maxima which generally mirror their counterpart regime's behavior. That is, many ocean regions exhibit clearcut secondary MLA precipitation maxima while many continental regions exhibit just as evident secondary LE-EM maxima. This investigation is the first comprehensive study of these globally prevalent secondary maxima and their widespread nature, a type of study only made possible when the analysis procedure is applied to a high-quality global-scale precipitation dataset. The characteristics of the secondary maxima are mapped and described on global grids using an innovative clock-face format, while a current study to be published at a later date provides physically-based explanations of the seasonal-regional distributions of the secondary maxima. In addition to an "explicit" maxima identification scheme, a "Fourier decomposition" maxima identification scheme is used to examine the amplitude and phase properties of the primary and secondary maxima -- as well as tertiary and quaternary maxima. Accordingly, the advantages, ambiguities, and pitfalls resulting from use of Fourier harmonic analysis are explained.
The mediating role of secondary beliefs: enhancing the understanding of emotional responses and illness perceptions in arthritis.

PubMed

McCracken, James; Lindner, Helen; Sciacchitano, Laura

2008-01-01

Chronic illnesses are a significant issue across many health professional domains, becoming an increasing burden on limited and costly resources. The current study investigated the relationship between secondary beliefs and emotional responses, beyond the relationship accounted for by illness perceptions, using the framework of Rational Emotive Behavior Therapy. Sixty-five adults with arthritis participated in the questionnaire-based study. Multivariate analysis found that different emotional representations of the illness were significantly predicted by the individual's secondary belief, above and beyond that predicted by the cognitive representation of their illness alone. The study found that individuals who utilized an achievement secondary belief experienced feelings of worry, whereas individuals who used an approval orientation to understand their arthritis experienced emotions such as depression, being upset, anger, anxiety, and fear. No significant pattern emerged for individuals who used a comfort secondary belief to understand their arthritis. These findings are in line with the theory of secondary beliefs, as articulated by Rational Emotive Behavior Therapy.
Reconstructionist Analysis on the Relevance of Secondary School Learning Opportunities in Promoting National Cohesion among Students in Machakos Town Sub-County, Kenya

ERIC Educational Resources Information Center

Mwanzia, Ruth Mutunge; Mwangi, Simon Nyagah

2016-01-01

The study investigated the relevance of secondary school learning opportunities in promoting national cohesion. The study was based on the ideals and principles of a school curriculum as advocated by Brameld Theodore on reconstructionism philosophy. Descriptive survey research design was adopted for the study. A sample size of four hundred and…
Fostering Creative Ecologies in Australasian Secondary Schools

ERIC Educational Resources Information Center

de Bruin, Leon R.; Harris, Anne

2017-01-01

This study investigates and compares elements of creativity in secondary schools and classrooms in Australia and Singapore. Statistical analysis and qualitative investigation of teacher, student and leadership perceptions of the emergence, fostering and absence of creativity in school learning environments is explored. This large-scale…
Investigating Trigonometric Representations in the Transition to College Mathematics

ERIC Educational Resources Information Center

Byers, Patricia

2010-01-01

This Ontario-based qualitative study examined secondary school and college textbooks' treatment of trigonometric representations in order to identify potential sources of student difficulties in the transition from secondary school to college mathematics. Analysis of networks, comprised of trigonometric representations, identified numerous issues…
Bioinformatics approaches for structural and functional analysis of proteins in secondary metabolism in Withania somnifera.

PubMed

Sanchita; Singh, Swati; Sharma, Ashok

2014-11-01

Withania somnifera (Ashwagandha) is an affluent storehouse of large number of pharmacologically active secondary metabolites known as withanolides. These secondary metabolites are produced by withanolide biosynthetic pathway. Very less information is available on structural and functional aspects of enzymes involved in withanolides biosynthetic pathways of Withiana somnifera. We therefore performed a bioinformatics analysis to look at functional and structural properties of these important enzymes. The pathway enzymes taken for this study were 3-Hydroxy-3-methylglutaryl coenzyme A reductase, 1-Deoxy-D-xylulose-5-phosphate synthase, 1-Deoxy-D-xylulose-5-phosphate reductase, farnesyl pyrophosphate synthase, squalene synthase, squalene epoxidase, and cycloartenol synthase. The prediction of secondary structure was performed for basic structural information. Three-dimensional structures for these enzymes were predicted. The physico-chemical properties such as pI, AI, GRAVY and instability index were also studied. The current information will provide a platform to know the structural attributes responsible for the function of these protein until experimental structures become available.
Metabolic engineering with systems biology tools to optimize production of prokaryotic secondary metabolites.

PubMed

Kim, Hyun Uk; Charusanti, Pep; Lee, Sang Yup; Weber, Tilmann

2016-08-27

Covering: 2012 to 2016Metabolic engineering using systems biology tools is increasingly applied to overproduce secondary metabolites for their potential industrial production. In this Highlight, recent relevant metabolic engineering studies are analyzed with emphasis on host selection and engineering approaches for the optimal production of various prokaryotic secondary metabolites: native versus heterologous hosts (e.g., Escherichia coli) and rational versus random approaches. This comparative analysis is followed by discussions on systems biology tools deployed in optimizing the production of secondary metabolites. The potential contributions of additional systems biology tools are also discussed in the context of current challenges encountered during optimization of secondary metabolite production.
Special Features of Using Secondary Materials in the Interior Design of Public Dining Establishments

NASA Astrophysics Data System (ADS)

Kuznetsova, Irina; Hapchuk, Olena; Lukinov, Vitaly

2017-10-01

This article analyses the latest publications studying the use and practical application of secondary resources as raw materials in design. This analysis is based on the list of secondary resources and their applications in interior decoration. In particular, the interiors of public catering enterprises were analysed. Restaurants with different functional purposes that were classified into several categories with specific peculiarities of interior design were identified. This article presents and describes different types of public catering enterprises based on those categories. The interior design of a public catering enterprise is regarded as a considerably complex system. Different types of secondary materials were reviewed to identify the most frequently used materials for interior space design. This article describes the main peculiarities of the use of secondary materials and presents examples of their practical application. The function of secondary materials in the interior design of public catering enterprises were detected and reviewed. On the basis of the analysis, several directions for the practical application of our results in the field of public catering enterprise design were suggested.
Comparison of Global Transcriptional Responses of Chicken Following Primary and Secondary Eimeria acervulina Infections

USDA-ARS?s Scientific Manuscript database

In the current study, we compared chicken gene transcriptional profiles following primary and secondary infections with Eimeria acervulina using a 9.6K avian intestinal intraepithelial lymphocyte cDNA microarray (AVIELA). Gene Ontology analysis showed that primary infection significantly modulated ...
A qualitative, phenomenological study on the lived experiences of science teachers in The Bahamas

NASA Astrophysics Data System (ADS)

Micklewhite, Thalia Vionne

This phenomenological study investigates the lived experiences and perceptions of secondary science teachers in the archipelagic country of The Bahamas and how these teachers make meaning of the secondary science program in The Bahamas through the lens of life in a democratic society. The study's purpose was to answer the question: What are the lived experiences of secondary science teachers in The Bahamas in terms of their working conditions'? Using principles of phenomenological research to approach meaning, in-depth interviewing was conducted with six secondary science teachers on four islands of The Bahamas, including the capital of New Providence. The participants and the selected islands are representative of the diversity of teachers, the population, and school climates and structures throughout the country. Narratives were obtained via three ninety-minute interviews with each participant; and thematic analysis was the instrument by which three central themes emerged. Analysis of narratives reveals that lived experience of secondary science teachers revolve around themes of: (1) The Professional Self, (2) Curriculum Leadership, and (3) Curriculum. Most participants are in the career of secondary science education as second choice but are still committed to the profession. Participants overwhelmingly commented that there was a lack of supportive frameworks for critical elements of their daily work, and a need for clear, visionary and decisive curriculum leadership by The Ministry of Education and private School Boards. Participants also desired more appropriate and alternative science curricula that would meet the need of non-academically inclined Bahamian students. Antecedent to their calls was a pressing recognition that they lacked participatory democratic voice in national secondary science education evidenced by years of unrecognized and unattended suggestions sent to those in authority. As a result of these findings, the researcher was propelled towards the need for a civic association of secondary science educators that could provide voice and recognition for secondary science educators, and founded an association named Bahamas Association of Science Educators (BASE). Further, the study findings highlight the need for the crafting of a national policy in science education which would address many of the concerns of participant secondary science teachers.
Quality Talk and Dialogic Teaching--An Examination of a Professional Development Programme on Secondary Teachers' Facilitation of Student Talk

ERIC Educational Resources Information Center

Davies, Maree; Kiemer, Katharina; Meissel, Kane

2017-01-01

This study used the Quality Talk and dialogic teaching approach with a group of secondary school teachers (N = 7) to train their facilitation of dialogical discussions by small groups of students. The study used video and audio analysis to assess the teachers' observable behaviours during these discussions, before and after professional…
The Interaction of Selective Attention and Cognitive Development on Achievement in Nigerian Secondary School Genetics

ERIC Educational Resources Information Center

Okoye, Namdi N. S.

2009-01-01

The study tried to examine the interaction between two independent variables of selective attention and cognitive development on Achievement in Genetics at the Secondary School level. In looking at the problem of this study three null hypotheses were generated for testing at 0.05 level of significance. Factorial Analysis of Variance design with…
The Latitudinal Analysis of Secondary School Students' Motivations towards Science Course

ERIC Educational Resources Information Center

Aydin, Suleyman; Keles, Pinar Ural

2017-01-01

The aim of this research was to investigate the comparison of different categories of secondary schools students' motivations for science lessons. In this research, the case study method was used latitudinally and it was carried out in the center schools of Agri in 2015-2016 academic years. The sample of the study was composed of totally 649…
Using a Computer Microphone Port to Study Circular Motion: Proposal of a Secondary School Experiment

ERIC Educational Resources Information Center

Soares, A. A.; Borcsik, F. S.

2016-01-01

In this work we present an inexpensive experiment proposal to study the kinematics of uniform circular motion in a secondary school. We used a PC sound card to connect a homemade simple sensor to a computer and used the free sound analysis software "Audacity" to record experimental data. We obtained quite good results even in comparison…
Studying the Effectiveness of Physical Education in the Secondary School (by the Example of Kazakhstan)

ERIC Educational Resources Information Center

Botagariyev, ?ulegen A.; Kubiyeva, Svetlana S.; Baizakova, Venera E.; Mambetov, Nurolla; Tulegenov, Yerkin K.; Aralbayev, Alpysbay S.; Kairgozhin, Dulat U.

2016-01-01

The purpose of this study was to determine the effectiveness of the existing model of teaching physical training in secondary schools and the analysis of a game like method introduced to improve physical fitness of students. The authors substantiated the use of a game like method during physical training classes, which implementation should create…
Curriculum-Making in Pre-Vocational Education in the Lower Secondary School: A Regional Comparative Analysis within Europe

ERIC Educational Resources Information Center

Berger, Susanne; Canning, Roy; Dolan, Michael; Kurek, Slawomir; Pilz, Matthias; Rachwal, Tomasz

2012-01-01

This paper presents a pilot comparative research project on pre-vocational education in lower secondary schools (ISCED level 2) within regions in three European countries. The primary aim of the study was to better understand how the pre-vocational education curriculum is constructed and taught within schools. A case study methodology was selected…
A Meta-Analytic Review of Graphic Organizers and Science Instruction for Adolescents with Learning Disabilities: Implications for the Intermediate and Secondary Science Classroom

ERIC Educational Resources Information Center

Dexter, Douglas D.; Park, Youn J.; Hughes, Charles A.

2011-01-01

This article presents a meta-analysis of experimental and quasi-experimental studies in which intermediate and secondary students with learning disabilities were taught science content through the use of graphic organizers (GOs). Following an exhaustive search for studies meeting specified selection criteria, 23 standardized mean effect sizes were…
The Role of Personal Attributes and Social Support Factors on Passive Behaviour in Classroom among Secondary School Students: A Prospective Study

ERIC Educational Resources Information Center

Murberg, Terje A.

2010-01-01

The present study prospectively explored the effects of personal attributes (self-esteem and introversion) and social support factors on passive behaviour in the classroom in a sample of 259 (132 females, 127 males) students in two secondary schools. In the longitudinal multivariate analysis, the student's perceived passive behaviour in the…
Constraints on primary and secondary particulate carbon sources using chemical tracer and 14C methods during CalNex-Bakersfield

NASA Astrophysics Data System (ADS)

Sheesley, Rebecca J.; Nallathamby, Punith Dev; Surratt, Jason D.; Lee, Anita; Lewandowski, Michael; Offenberg, John H.; Jaoui, Mohammed; Kleindienst, Tadeusz E.

2017-10-01

The present study investigates primary and secondary sources of organic carbon for Bakersfield, CA, USA as part of the 2010 CalNex study. The method used here involves integrated sampling that is designed to allow for detailed and specific chemical analysis of particulate matter (PM) in the Bakersfield airshed. To achieve this objective, filter samples were taken during thirty-four 23-hr periods between 19 May and 26 June 2010 and analyzed for organic tracers by gas chromatography - mass spectrometry (GC-MS). Contributions to organic carbon (OC) were determined by two organic tracer-based techniques: primary OC by chemical mass balance and secondary OC by a mass fraction method. Radiocarbon (14C) measurements of the total organic carbon were also made to determine the split between the modern and fossil carbon and thereby constrain unknown sources of OC not accounted for by either tracer-based attribution technique. From the analysis, OC contributions from four primary sources and four secondary sources were determined, which comprised three sources of modern carbon and five sources of fossil carbon. The major primary sources of OC were from vegetative detritus (9.8%), diesel (2.3%), gasoline (<1.0%), and lubricating oil impacted motor vehicle exhaust (30%); measured secondary sources resulted from isoprene (1.5%), α-pinene (<1.0%), toluene (<1.0%), and naphthalene (<1.0%, as an upper limit) contributions. The average observed organic carbon (OC) was 6.42 ± 2.33 μgC m-3. The 14C derived apportionment indicated that modern and fossil components were nearly equivalent on average; however, the fossil contribution ranged from 32 to 66% over the five week campaign. With the fossil primary and secondary sources aggregated, only 25% of the fossil organic carbon could not be attributed. Whereas, nearly 80% of the modern carbon could not be attributed to primary and secondary sources accessible to this analysis, which included tracers of biomass burning, vegetative detritus and secondary biogenic carbon. The results of the current study contributes source-based evaluation of the carbonaceous aerosol at CalNex Bakersfield.
Constraints on primary and secondary particulate carbon sources using chemical tracer and 14C methods during CalNex-Bakersfield

PubMed Central

Sheesley, Rebecca J.; Nallathamby, Punith Dev; Surratt, Jason D.; Lee, Anita; Lewandowski, Michael; Offenberg, John H.; Jaoui, Mohammed; Kleindienst, Tadeusz E.

2018-01-01

The present study investigates primary and secondary sources of organic carbon for Bakersfield, CA, USA as part of the 2010 CalNex study. The method used here involves integrated sampling that is designed to allow for detailed and specific chemical analysis of particulate matter (PM) in the Bakersfield airshed. To achieve this objective, filter samples were taken during thirty-four 23-hr periods between 19 May and 26 June 2010 and analyzed for organic tracers by gas chromatography – mass spectrometry (GC-MS). Contributions to organic carbon (OC) were determined by two organic tracer-based techniques: primary OC by chemical mass balance and secondary OC by a mass fraction method. Radiocarbon (14C) measurements of the total organic carbon were also made to determine the split between the modern and fossil carbon and thereby constrain unknown sources of OC not accounted for by either tracer-based attribution technique. From the analysis, OC contributions from four primary sources and four secondary sources were determined, which comprised three sources of modern carbon and five sources of fossil carbon. The major primary sources of OC were from vegetative detritus (9.8%), diesel (2.3%), gasoline (<1.0%), and lubricating oil impacted motor vehicle exhaust (30%); measured secondary sources resulted from isoprene (1.5%), α-pinene (<1.0%), toluene (<1.0%), and naphthalene (<1.0%, as an upper limit) contributions. The average observed organic carbon (OC) was 6.42 ± 2.33 μgC m−3. The 14C derived apportionment indicated that modern and fossil components were nearly equivalent on average; however, the fossil contribution ranged from 32-66% over the five week campaign. With the fossil primary and secondary sources aggregated, only 25% of the fossil organic carbon could not be attributed. Whereas, nearly 80% of the modern carbon could not be attributed to primary and secondary sources accessible to this analysis, which included tracers of biomass burning, vegetative detritus and secondary biogenic carbon. The results of the current study contributes source-based evaluation of the carbonaceous aerosol at CalNex Bakersfield. PMID:29681757

Cancer studies based on secondary data analysis of the Taiwan's National Health Insurance Research Database: A computational text analysis and visualization study.

PubMed

Chiang, Jui-Kun; Lin, Chih-Wen; Wang, Chun-Lung; Koo, Malcolm; Kao, Yee-Hsin

2017-04-01

There has been a surge in the academic publication output based on secondary analyses of the data from the Taiwan's National Health Insurance claim records. It has become a challenge to comprehend such a rapid expansion of the literature. Therefore, this study aimed to explore the conceptual content of National Health Insurance Research Database-based cancer research, using the abstract of articles extracted from PubMed between 2002 and 2015. Search terms including "National Health Insurance Research Database (NHIRD) AND Taiwan," "Taiwan AND population-based," and "Taiwan AND nationwide" were used to search in PubMed with the publication date limited to between 1997 and 2015. The retrieved articles were manually screened to retain only those that were cancer-related and were based on secondary data analysis of the NHIRD. A total 589 articles were selected for subsequent text mining using the R software. Among the 589 articles, the top 5 most studied cancer types were breast (16.3%), lung (11.4%), colorectal (10.4%), liver (8.3%), and prostate (7.5%). The articles that received the highest number of citations by PubMed Central articles were cited 92 times. The top 3 most frequently occurred keywords in the abstracts of the 589 articles were cancer, patient, and risk, with 3670, 2535, and 1652 times, respectively. Analysis of key conception indicated that the most common conceptions were diabetes, survival, breast cancer, lung cancer, and colorectal cancer. In conclusion, in this study of 589 published articles on secondary data analysis of the NHIRD, indexed by PubMed between 2002 and 2015, we found that while the risk factors of cancer, treatment of cancer, and survival of cancer patients were popular research topics, end-of-life cancer care issues were less studied. Further studies should explore these areas since they are as important as treatment of the disease itself for many patients.
Secondary Instability of Second Modes in Hypersonic Boundary Layers

NASA Technical Reports Server (NTRS)

Li, Fei; Choudhari, Meelan M.; Chang, Chau-Lyan; White, Jeffery A.

2012-01-01

Second mode disturbances dominate the primary instability stage of transition in a number of hypersonic flow configurations. The highest amplification rates of second mode disturbances are usually associated with 2D (or axisymmetric) perturbations and, therefore, a likely scenario for the onset of the three-dimensionality required for laminar-turbulent transition corresponds to the parametric amplification of 3D secondary instabilities in the presence of 2D, finite amplitude second mode disturbances. The secondary instability of second mode disturbances is studied for selected canonical flow configurations. The basic state for the secondary instability analysis is obtained by tracking the linear and nonlinear evolution of 2D, second mode disturbances using nonlinear parabolized stability equations. Unlike in previous studies, the selection of primary disturbances used for the secondary instability analysis was based on their potential relevance to transition in a low disturbance environment and the effects of nonlinearity on the evolution of primary disturbances was accounted for. Strongly nonlinear effects related to the self-interaction of second mode disturbances lead to an upstream shift in the upper branch neutral location. Secondary instability computations confirm the previously known dominance of subharmonic modes at relatively small primary amplitudes. However, for the Purdue Mach 6 compression cone configuration, it was shown that a strong fundamental secondary instability can exist for a range of initial amplitudes of the most amplified second mode disturbance, indicating that the exclusive focus on subharmonic modes in the previous applications of secondary instability theory to second mode primary instability may not have been fully justified.
Influence of control group therapy on the benefit from dose-dense chemotherapy in early breast cancer: a systemic review and meta-analysis.

PubMed

Goldvaser, Hadar; Majeed, Habeeb; Ribnikar, Domen; Šeruga, Boštjan; Ocaña, Alberto; Cescon, David W; Amir, Eitan

2018-06-01

Results from clinical trials of adjuvant dose-dense chemotherapy in patients with breast cancer are inconsistent. A systematic search of MEDLINE identified studies comparing the efficacy of dose-dense adjuvant chemotherapy to a standard treatment. The primary analysis included studies that used identical regimens in the experimental and control groups, but varied only dose density. A secondary analysis included studies that used either different drugs or doses in the experimental and the control groups. Hazard ratios (HRs) and 95% confidence intervals were computed for disease-free survival (DFS) and overall survival (OS) and pooled in a meta-analysis. Subgroup analyses and meta-regression explored drug schedules utilized in control groups and the influence of clinicopathologic variables on benefit from dose-dense therapy. The primary analysis included 5 studies comprising 9819 patients while the secondary analysis included 6 studies comprising 9679 patients. Dose-dense treatment significantly improved DFS (HR 0.85, p < 0.001) and OS (HR 0.86, p = 0.008) in the primary analysis. Similar results were observed in the secondary analysis. Dose-dense schedule was important primarily in studies utilizing paclitaxel every 3 weeks as the control group (interaction p = 0.04 for DFS interaction p = 0.001 for OS). A significantly greater relative magnitude of benefit was observed in pre-menopausal women and those with nodal involvement, but there was no influence of hormone receptor status on results. Adjuvant dose-dense regimens improve breast cancer outcomes. It remains uncertain whether the observed benefit reflects the impact of dose density or the inferiority of paclitaxel every 3 weeks as a control group.
Secondary Traumatic Stress in NICU Nurses: A Mixed-Methods Study.

PubMed

Beck, Cheryl Tatano; Cusson, Regina M; Gable, Robert K

2017-12-01

Secondary traumatic stress is an occupational hazard for healthcare providers who care for patients who have been traumatized. This type of stress has been reported in various specialties of nursing, but no study to date had specifically focused on neonatal intensive care unit (NICU) nurses. (1) To determine the prevalence and severity of secondary traumatic stress in NICU nurses and (2) to explore those quantitative findings in more depth through nurses' qualitative descriptions of their traumatic experiences caring for critically ill infants in the NICU. Members of NANN were sent e-mails with a link to the electronic survey. In this mixed-methods study, a convergent parallel design was used. Neonatal nurses completed the Secondary Traumatic Stress Scale (STSS) and then described their traumatic experiences caring for critically ill infants in the NICU. SPSS version 24 and content analysis were used to analyze the quantitative and qualitative data, respectively. In this sample of 175 NICU nurses, 49% of the nurses' scores on the STSS indicated moderate to severe secondary traumatic stress. Analysis of the qualitative data revealed 5 themes that described NICU nurses' traumatic experiences caring for critically ill infants. NICU nurses need to know the signs of secondary traumatic stress that they may experience caring for their critically ill infants. Avenues for dealing with the stress should be provided. Future research with a higher response rate to increase the external validity of the findings to the population of neonatal nurses is needed.
Nanotechnology and Secondary Science Teacher's Self-Efficacy

NASA Astrophysics Data System (ADS)

Cox, Elena K.

The recommendations of the United States President's Council of Advisors on Science and Technology and the multi-agency National Nanotechnology Initiative (NNI) identified the need to prepare the workforce and specialists in the field of nanotechnology in order for the United States to continue to compete in the global marketplace. There is a lack of research reported in recent literature on the readiness of secondary science teachers to introduce higher level sciences---specifically nanotechnology---in their classes. The central research question of this study examined secondary science teachers' beliefs about teaching nanotechnology comfortably, effectively, and successfully. Bandura's self-efficacy theory provided the conceptual framework for this phenomenological study. A data analysis rubric was used to identify themes and patterns that emerged from detailed descriptions during in-depth interviews with 15 secondary science teachers. The analysis revealed the shared, lived experiences of teachers and their beliefs about their effectiveness and comfort in teaching higher-level sciences, specifically nanotechnology. The results of the study indicated that, with rare exceptions, secondary science teachers do not feel comfortable or effective, nor do they believe they have adequate training to teach nanotechnology concepts to their students. These teachers believed they were not prepared or trained in incorporating these higher level science concepts in the curriculum. Secondary science teachers' self-efficacy and personal beliefs of effectiveness in teaching nanotechnology can be an important component in achieving a positive social change by helping to familiarize high school students with nanotechnology and how it can benefit society and the future of science.
Factors Influencing Stress, Burnout, and Retention of Secondary Teachers

ERIC Educational Resources Information Center

Fisher, Molly H.

2011-01-01

This study examines the stress, burnout, satisfaction, and preventive coping skills of nearly 400 secondary teachers to determine variables contributing to these major factors influencing teachers. Analysis of Variance (ANOVA) statistics were conducted that found the burnout levels between new and experienced teachers are significantly different,…
Competition, Cream-Skimming and Department Performance within Secondary Schools

ERIC Educational Resources Information Center

Davies, Peter; Telhaj, Shqiponje; Hutton, David; Adnett, Nick; Coe, Robert

2009-01-01

The performance of departments has been largely neglected in previous studies of subject choice in secondary schools. This is a significant omission because analysis at departmental level enables a fuller assessment of the effects of competition and specialisation on pupil performance. This paper examines relationships between both absolute and…
Swedish Upper Secondary Students' Perspectives on the Typical Mathematics Lesson

ERIC Educational Resources Information Center

Andrews, Paul; Larson, Niclas

2017-01-01

This paper presents a group interview study of Swedish upper secondary students' perspectives on the typical mathematics lesson. Students, from four demographically different schools, constructed a collective synthesis of their many years' experience of mathematics classrooms. Transcriptions were subjected to a constant comparison analysis, which…
Factors behind Classroom Participation of Secondary School Students (A Gender Based Analysis)

ERIC Educational Resources Information Center

Aziz, Fakhra; Quraishi, Uzma; Kazi, Asma Shahid

2018-01-01

It is evidence based conclusion that students' classroom participation makes them more motivated, supports their learning, improves their communication and promotes higher order thinking skills. The current study was an intention to investigate the current level of secondary school students' classroom participation and to identify the underlying…
Scientific Explanations in Greek Upper Secondary Physics Textbooks

ERIC Educational Resources Information Center

Velentzas, Athanasios; Halkia, Krystallia

2018-01-01

In this study, an analysis of the structure of scientific explanations included in physics textbooks of upper secondary schools in Greece was completed. In scientific explanations for specific phenomena found in the sample textbooks, the "explanandum" is a logical consequence of the "explanans," which in all cases include at…
Teaching about Japan in Secondary Schools.

ERIC Educational Resources Information Center

Richardson, Helen W.

1981-01-01

Suggests that a good starting point for social studies curriculum units on Japan at the secondary school level is an analysis of the interrelationships between Japan and the United States. Information is presented on population figures, industrialization, standard of living indicators, consumer price indexes, and crude birth and death rates for…
An Analysis of Teacher Sorting in Secondary Special Education and Alternative Schools

ERIC Educational Resources Information Center

Mason-Williams, Loretta; Gagnon, Joseph Calvin

2017-01-01

This study provides nationally representative information about the qualifications and preparation of secondary content and special education teachers in special education and alternative school settings, as compared with teachers in regular schools. Findings demonstrate that a statistically significant relationship did not exist between school…
Organisational Factors and Teachers' Professional Development in Dutch Secondary Schools

ERIC Educational Resources Information Center

Evers, Arnoud T.; van der Heijden, Beatrice I. J. M.; Kreijns, Karel; Gerrichhauzen, John T. G.

2011-01-01

Purpose: The purpose of this paper is to report on a study that investigates the relationship between organisational factors, Teachers' Professional Development (TPD) and occupational expertise. Design/methodology/approach: A survey was administered among 152 Dutch teachers in secondary education. Findings: Analysis of the data revealed that of…
Further Education Pathways of Canadian University Graduates

ERIC Educational Resources Information Center

Adamuti-Trache, Maria

2008-01-01

Through secondary analysis of the National Graduate Survey data, this study examines determinants of choice of further education pathways by Canadian university graduates in early 2000s. This paper extends the Cross' participation model by introducing a typology of path choices that are related to socio-demographic, post-secondary and situational…
Representation of Scientific Methodology in Secondary Science Textbooks

ERIC Educational Resources Information Center

Binns, Ian C.; Bell, Randy L.

2015-01-01

This study explored how eight widely used secondary science textbooks described scientific methodology and to what degree the textbooks' examples and investigations were consistent with this description. Data consisted of all text from student and teacher editions that referred to scientific methodology and all investigations. Analysis used an…
Data Base Reexamination as Part of IDS Secondary Analysis.

ERIC Educational Resources Information Center

Curry, Blair H.; And Others

Data reexamination is a critical component for any study. The complexity of the study, the time available for data base development and analysis, and the relationship of the study to educational policy-making can all increase the criticality of such reexamination. Analysis of the error levels in the National Institute of Education's Instructional…
The Neo-Liberal Turn in Understanding Teachers' and School Leaders' Work Practices in Curriculum Innovation and Change: A Critical Discourse Analysis of a Newly Proposed Reform Policy in Lower Secondary Education in the Republic of Ireland

ERIC Educational Resources Information Center

Simmie, Geraldine Mooney

2014-01-01

The study in this article involved a critical discourse analysis of five policy documents in relation to a curriculum reform proposed for lower secondary education in the Republic of Ireland. It examined the (re)positioning of governance in relation to curriculum and teacher education. Findings indicate a predominant clinical discourse closely…
Trends in nitrogen and phosphorus cycling are consistent and constrained during tropical secondary forest succession: is secondary forest young primary forest from a nutrient perspective?

NASA Astrophysics Data System (ADS)

Sullivan, B. W.; Nasto, M.; Alvarez-Clare, S.; Cole, R. J.; Reed, S.; Chazdon, R.; Davidson, E. A.; Cleveland, C. C.

2015-12-01

Extensive deforestation of tropical rainforest often leads to agricultural abandonment and secondary forest regeneration. The land area of secondary rainforest is soon likely to exceed that of primary forest, highlighting the importance of secondary tropical rainforest in the global carbon (C) cycle. Secondary forests often grow rapidly, but the role soil nutrients play in regulating secondary forest productivity remains unsettled. Consistent with biogeochemical theory, a landmark study from a set of sites in the Amazon Basin showed that secondary forests had low nitrogen (N) availability and relatively higher phosphorus (P) availability immediately after abandonment, but that as succession proceeded, N availability "recuperated" and there was relatively less P available. To address whether such changes in N and P availability during secondary forest growth are common, we reviewed 38 studies in lowland tropical rainforest that reported changes in 23 different metrics of N and P cycling during secondary succession. We calculated slopes (rates of change) during secondary succession for each metric in each study, and analyzed patterns in these rates of change. Significant trends during secondary succession were more evident in soils than in plants, but in most cases, the variability among studies was surprisingly low. Both soil N and P availability increased through succession, at least in surface soil. Such consistent changes imply substantial biogeochemical resilience of tropical forest soils in spite of differing land use histories and species compositions among studies. In most cases, slopes were similar whether primary forest was included in, or excluded from, our analysis, suggesting that secondary succession eventually leads to similar biogeochemical conditions as those found in primary forest. Our results suggesting consistent changes in N and P availability during succession provide a biogeochemical rationale for the conservation and restoration value of tropical secondary forests, and may be of utility to coupled C-nutrient models projecting primary productivity in a dynamic tropical biome.
Potential impacts of the Alberta fetal alcohol spectrum disorder service networks on secondary disabilities: a cost-benefit analysis.

PubMed

Thanh, Nguyen Xuan; Moffatt, Jessica; Jacobs, Philip; Chuck, Anderson W; Jonsson, Egon

2013-01-01

To estimate the break-even effectiveness of the Alberta Fetal Alcohol Spectrum Disorder (FASD) Service Networks in reducing occurrences of secondary disabilities associated with FASD. The secondary disabilities addressed within this study include crime, homelessness, mental health problems, and school disruption (for children) or unemployment (for adults). We used a cost-benefit analysis approach where benefits of the service networks were the cost difference between the two approaches: having the 12 service networks and having no service network in place, across Alberta. We used a threshold analysis to estimate the break-even effectiveness (i.e. the effectiveness level at which the service networks became cost-saving). If no network was in place throughout the province, the secondary disabilities would cost $22.85 million (including $8.62 million for adults and $14.24 million for children) per year. Given the cost of network was $6.12 million per year, the break-even effectiveness was estimated at 28% (range: 25% to 32%). Although not all benefits associated with the service networks are included, such as the exclusion of the primary benefit to those experiencing FASD, the benefits to FASD caregivers, and the preventative benefits, the economic and social burden associated with secondary disabilities will "pay-off" if the effectiveness of the program in reducing secondary disabilities is 28%.
The health benefits of secondary education in adolescents and young adults: An international analysis in 186 low-, middle- and high-income countries from 1990 to 2013.

PubMed

Viner, Russell M; Hargreaves, Dougal S; Ward, Joseph; Bonell, Chris; Mokdad, Ali H; Patton, George

2017-12-01

The health benefits of secondary education have been little studied. We undertook country-level longitudinal analyses of the impact of lengthening secondary education on health outcomes amongst 15-24 year olds. Exposures: average length of secondary and primary education from 1980 to 2013.Data/Outcomes: Country level adolescent fertility rate (AFR), HIV prevalence and mortality rate from 1989/90 to 2013 across 186 low-, middle- and high-income countries.Analysis: Longitudinal mixed effects models, entering secondary and primary education together, adjusted for time varying GDP and country income status. Longitudinal structural marginal models using inverse probability weighting (IPW) to take account of time varying confounding by primary education and GDP. Counterfactual scenarios of no change in secondary education since 1980/1990 were estimated from model coefficients for each outcome. Each additional year of secondary education decreased AFR by 8.4% in mixed effects models and 14.6% in IPW models independent of primary education and GDP. Counterfactual analyses showed the proportion of the reduction in adolescent fertility rate over the study period independently attributable to secondary education was 28% in low income countries. Each additional year of secondary education reduced mortality by 16.9% for 15-19 year and 14.8% for 20-24 year old young women and 11.4% for 15-19 year and 8.8% for 20-24 year old young men. Counterfactual scenarios suggested 12% and 23% of the mortality reduction for 15-19 and 20-24 year old young men was attributable to secondary education in low income countries. Each additional year of secondary education was associated with a 24.5% and 43.1% reduction in HIV prevalence amongst young men and women. The health benefits associated with secondary education were greater than those of primary education and were greatest amongst young women and those from low income countries. Secondary education has the potential to be a social vaccine across many outcomes in low and middle income countries.

Analysis on Students' Late-Coming Factors in Selected Secondary Schools in Zaria: Implications for Educational Managers

ERIC Educational Resources Information Center

Jumare, Abubakare M.; Maina, Bashir A.; Ankoma-Sey, Vera Rosemary

2015-01-01

This study attempted to answer the following research questions among others: Has gender any relation with students' late-coming to school? Has age any relation with students' late-coming to school? Do senior students come to school later than juniors? Four secondary schools were selected for the study. A sample of sixty students late comers were…
Do Teachers Need to Be Leaders? Perceptions of Educational Leadership and Management in the Israeli Secondary Educational System

ERIC Educational Resources Information Center

Timor, Tsafi

2017-01-01

The study explored the perceptions of student-teachers of educational leadership and management with regard to the roles of homeroom teachers and subject teachers in secondary schools. The participants of the study are students in the biggest College of Education in Israel. The analysis was conducted on the students' posts in an online forum of an…
Classroom Temperature, Clothing and Thermal Comfort -- A Study of Secondary School Children in Summertime. Building Research Establishment Current Paper 22/74.

ERIC Educational Resources Information Center

Humphreys, M. A.

1974-01-01

This article describes a study of summertime classroom temperature and its relationship to the clothing worn by English secondary school children. Data on classroom temperatures and children's clothing were recorded during one summer for a total of 987 lessons. Analysis of the data showed that the strong clothing-temperature correlation could be…
"So, What Do Men and Women Want? Is It Any Different from What Animals Want?" Sex Education in an Upper Secondary School

ERIC Educational Resources Information Center

Orlander, Auli Arvola

2016-01-01

The aim of the study is to discuss and problematise notions of femininity and masculinity constructed in teaching situations among 16-year-old upper-secondary students studying science. The empirical examples originate from a teaching session with the theme of "sex and relationships". The analysis is focused on metaphors inherent in a…
Shanghai: a study on the spatial growth of population and economy in a Chinese metropolitan area.

PubMed

Zhu, J

1995-01-01

In this study of the growth in population and industry in Shanghai, China, between the 1982 and 1990 censuses, data on administrative divisions was normalized through digitization and spatial analysis. Analysis focused on spatial units, intensity of growth, time period, distance, rate of growth, and direction of spatial growth. The trisection method divided the city into city proper, outskirts, and suburbs. The distance function method considered the distance from center city as a function: exponential, power, trigonometric, logarithmic, and polynomial. Population growth and employment in all sectors increased in the outskirts and suburbs and decreased in the city proper except tertiary sectors. Primary sector employment decreased in all three sections. Employment in the secondary increased faster in the outskirts and suburbs than the total rate of growth of population and employment. In the city secondary sector employment rates decreased faster than total population and employment rates. The tertiary sector had the highest rate of growth in all sections, and employment grew faster than secondary sector rates. Tertiary growth was highest in real estate, finance, and insurance. Industrial growth in the secondary sector was 160.2% in the suburbs, 156.6% in the outskirts, and 80.9% in the city. In the distance function analysis, industry expanded further out than the entire secondary sector. Commerce grew the fastest in areas 15.4 km from center city. Economic growth was faster after economic reforms in 1978. Growth was led by industry and followed by the secondary sector, the tertiary sector, and population. Industrial expansion resulted from inner pressure, political factors controlling size, the social and economic system, and the housing construction and distribution system. Initially sociopsychological factors affected urban concentration.
Static time-of-flight secondary ion mass spectrometry analysis of microelectronics related substrates using a polyatomic ion source

NASA Astrophysics Data System (ADS)

Ravanel, X.; Trouiller, C.; Juhel, M.; Wyon, C.; Kwakman, L. F. Tz.; Léonard, D.

2008-12-01

Recent time-of-flight secondary ion mass spectrometry studies using primary ion cluster sources such as Au n+, SF 5+, Bi n+ or C 60+ have shown the great advantages in terms of secondary ion yield enhancement and ion formation efficiency of polyatomic ion sources as compared to monoatomic ion sources like the commonly used Ga +. In this work, the effective gains provided by such a source in the static ToF-SIMS analysis of microelectronics devices were investigated. Firstly, the influence of the number of atoms in the primary cluster ion on secondary ion formation was studied for physically adsorbed di-isononyl phthalate (DNP) (plasticizer) and perfluoropolyether (PFPE). A drastic increase in secondary ion formation efficiency and a much lower detection limit were observed when using a polyatomic primary ion. Moreover, the yield of the higher mass species was much enhanced indicating a lower degree of fragmentation that can be explained by the fact that the primary ion energy is spread out more widely, or that there is a lower energy per incoming ion. Secondly, the influence of the number of Bi atoms in the Bi n primary ion on the information depth was studied using reference thermally grown silicon oxide samples. The information depth provided by a Bi n cluster was shown to be lowered when the number of atoms in the aggregate was increased.
The Training of Music Teachers in Colombia: A Descriptive Analysis

ERIC Educational Resources Information Center

Nayibe Cárdenas Soler, Ruth; Lorenzo Quiles, Oswaldo; Hargreaves, David J.

2015-01-01

This study is an evaluative analysis of 13 Music Education programs in Colombia that provide training for secondary school music teachers for 6th to 11th grade in the Colombian education system. The study utilized an analysis matrix from the International Research Project ALFA II-0448-A, which developed a similar study with Latin American and…
Functions in Contemporary Secondary Mathematics Textbook Series in the United States

ERIC Educational Resources Information Center

Ross, Daniel J.

2011-01-01

Textbooks play a central role in US mathematics classrooms (Stein, Remillard, & Smith, 2007) and functions are a key topic in secondary mathematics (Carlson, Jacobs, Coe, Larsen, & Hsu, 2002). This study presents results from an analysis of this essential topic in the latest editions of three textbook series: the Glencoe Mathematics…
Cost Effectiveness Analysis between Boarding and Day Secondary Students in Kenya

ERIC Educational Resources Information Center

Jagero, N.; Ayodo, T. M.; Agak, J. A.

2011-01-01

This paper examines the cost effectiveness of educating boarding and day secondary students in Kisumu district in Kenya. The research designs used in this study were descriptive survey and casual comparative designs. The population consisted of five head teachers, 140 form four teachers and 609 form four students. Saturated and systematic random…
An Empirical Analysis of Teacher Spillover Effects in Secondary School

ERIC Educational Resources Information Center

Koedel, Cory

2009-01-01

This paper examines whether educational production in secondary school involves joint production among teachers across subjects. In doing so, it also provides insights into the reliability of value-added modeling. Teacher value-added to reading test scores is estimated for four different teacher types: English, math, science and social-studies.…
Differentiating Mathematics Instruction for Secondary-Level English Language Learners in the Mainstream Classroom

ERIC Educational Resources Information Center

Cardimona, Kimberly

2018-01-01

This study investigated the nature of dyadic interaction between secondary English language learners (ELLs) engaged in mathematics peer tutoring sessions. An analysis of 15 ELL expert/novice student-tutoring dyads and three mathematics teacher/ELL novice dyads revealed the importance of questions and wait time in developing novice tutee ownership…
Connections between Secondary Mathematics Teachers' Beliefs and Their Selection of Tasks for English Language Learners

ERIC Educational Resources Information Center

de Araujo, Zandra

2017-01-01

The tasks teachers select impact students' opportunities to learn mathematics and teachers' beliefs influence their choice of tasks. Through the qualitative analysis of surveys, interviews and classroom artefacts from three secondary mathematics teachers, this study examined teachers' selection of mathematics tasks for English language learners…
Evaluating the Effectiveness of Programs to Improve Educational Attainment of Unwed African American Teen Mothers: A Meta Analysis

ERIC Educational Resources Information Center

Baytop, Chanza M.

2006-01-01

A study implements meta-analytic methods to synthesize the findings and analyze the effects of interventions, including secondary teen pregnancy prevention programs, on educational achievement among unwed African American teen mothers. Results indicate that secondary teen pregnancy prevention programs and other interventions for adolescent mothers…
Implementation of Ptechls Modules in Rural Malaysian Secondary School: A Needs Analysis

ERIC Educational Resources Information Center

Alias, Norlidah; DeWitt, Dorothy; Siraj, Saedah; Rahman, Mohd Nazri Abdul; Gelamdin, Rashidah Begum; Rauf, Rose Amnah Abd

2014-01-01

Research has shown that the strategy of matching learning style with certain technology enhances students' learning experience. This study seeks to identify the learning styles among students in a rural secondary school, based on the Felder Silverman Model (1988) which comprises four dimensions (visual/verbal, active/reflective, sequential/global,…
Secondary English Teachers' Perspectives on the Design and Use of Classroom Websites

ERIC Educational Resources Information Center

Janicki, Eric; Chandler-Olcott, Kelly

2012-01-01

Although K-12 teachers are frequently exhorted to maintain classroom websites, little is known about how they view or accomplish such work. To address this gap in the research literature, the study described here used qualitative methods, including computer-mediated interviews and document analysis, to explore secondary English teachers'…
Courageous Conversations about Race, Class, and Gender: Voices and Lessons from the Field

ERIC Educational Resources Information Center

Mansfield, Katherine Cumings; Jean-Marie, Gaëtane

2015-01-01

The purpose of this paper is to present a qualitative secondary analysis of two empirical studies that focused on the leadership practices of female practitioners at the secondary level engaging in discourse and practices to disrupt educational inequities. The guiding research question is, "How do school leaders engage in courageous…
Out on a Limb: The Efficacy of Teacher Induction in Secondary Schools

ERIC Educational Resources Information Center

Shockley, Robert; Watlington, Eliah; Felsher, Rivka

2013-01-01

This article reports the results of a qualitative meta-analysis study of the research and literature on the efficacy of teacher induction on the retention of high-quality secondary school teachers and challenges current assumptions about the efficacy of induction despite the proliferation of induction programs nationwide. A theoretical model for…
Understanding the Priorities of Australian Secondary Schools through an Analysis of Their Mission and Vision Statements

ERIC Educational Resources Information Center

Allen, Kelly-Ann; Kern, Margaret L.; Vella-Brodrick, Dianne; Waters, Lea

2018-01-01

Purpose: The vision or mission statement of a school outlines the school's purpose and defines the context, goals, and aspirations that govern the institution. Using vision and mission statements, the present descriptive research study investigated trends in Australian secondary schools' priorities. Research Methods: A stratified sample of…
Problem Solving in Swedish Mathematics Textbooks for Upper Secondary School

ERIC Educational Resources Information Center

Brehmer, Daniel; Ryve, Andreas; Van Steenbrugge, Hendrik

2016-01-01

The aim of this study is to analyse how mathematical problem solving is represented in mathematical textbooks for Swedish upper secondary school. The analysis comprises dominating Swedish textbook series, and relates to uncovering (a) the quantity of tasks that are actually mathematical problems, (b) their location in the chapter, (c) their…
Elementary and Secondary School Counselors' Perceptions of Graduate Preparation Programs: A National Study

ERIC Educational Resources Information Center

Perusse, Rachelle; Goodnough, Gary E.

2005-01-01

In a national survey, members from the American School Counselor Association were asked to rate the importance of graduate-level training for 24 course content areas. Analysis indicated that there were similarities and significant differences between elementary school counselors and secondary school counselors on their perception of the importance…

Status of Credentialing Structures Related to Secondary Transition: A State-Level Policy Analysis

ERIC Educational Resources Information Center

Simonsen, Monica L.; Novak, Jeanne A.; Mazzotti, Valerie L.

2018-01-01

To understand the current status of transition-related credentialing systems in driving personnel preparation, it is necessary to identify which state education and rehabilitation services agencies are currently providing certification and licensure in the area of secondary transition. The purpose of this study was to examine the current state of…
Change Forces: Implementing Change in a Secondary School for the Common Good

ERIC Educational Resources Information Center

Melville, Wayne; Bartley, Anthony; Weinburgh, Molly

2012-01-01

In this article, we investigate the change forces that act on administrators, subject department chairpersons and teachers as they seek to implement a change in a Canadian secondary school. Using a case study methodology, our analysis of the data uses Sergiovanni's (1998) six change forces: bureaucratic, personal, market, professional, cultural,…
Gender Differences in the Professional Goals of Preservice Secondary Mathematics and Science Teachers.

ERIC Educational Resources Information Center

Styer, Sandra

This study, conducted at Northeastern Illinois University, examined gender differences in professional goals of 95 degreed, professionally experienced students seeking secondary certification in mathematics and science (50 females and 45 males). An analysis of the stated goals found that all goals could be assigned to the following 10 categories:…
Teacher Argumentation in the Secondary Science Classroom: Images of Two Modes of Scientific Inquiry

ERIC Educational Resources Information Center

Gray, Ron E.

2009-01-01

The purpose of this exploratory study was to examine scientific arguments constructed by secondary science teachers during instruction. The analysis focused on how arguments constructed by teachers differed based on the mode of inquiry underlying the topic. Specifically, how did the structure and content of arguments differ between experimentally…
Cost of delivering secondary-level health care services through public sector district hospitals in India.

PubMed

Prinja, Shankar; Balasubramanian, Deepak; Jeet, Gursimer; Verma, Ramesh; Kumar, Dinesh; Bahuguna, Pankaj; Kaur, Manmeet; Kumar, Rajesh

2017-09-01

Despite an impetus for strengthening public sector district hospitals for provision of secondary health care in India, there is lack of robust evidence on cost of services provided through these district hospitals. In this study, an attempt was made to determine the unit cost of an outpatient visit consultation, inpatient bed-day of hospitalization, surgical procedure and overall per-capita cost of providing secondary care through district hospitals. Economic costing of five randomly selected district hospitals in two north Indian States - Haryana and Punjab, was undertaken. Cost analysis was done using a health system perspective and employing bottom-up costing methodology. Quantity of all resources - capital or recurrent, used for delivering services was measured and valued. Median unit costs were estimated along with their 95 per cent confidence intervals. Sensitivity analysis was undertaken to assess the effect of uncertainties in prices and other assumptions; and to generalize the findings for Indian set-up. The overall annual cost of delivering secondary-level health care services through a public sector district hospital in north India was ' 11,44,13,282 [US Dollars (USD) 2,103,185]. Human resources accounted for 53 per cent of the overall cost. The unit cost of an inpatient bed-day, surgical procedure and outpatient consultation was ' 844 (USD 15.5), ' 3481 (USD 64) and ' 170 (USD 3.1), respectively. With the current set of resource allocation, per-capita cost of providing health care through district hospitals in north India was ' 139 (USD 2.5). The estimates obtained in our study can be used for Fiscal planning of scaling up secondary-level health services. Further, these may be particularly useful for future research such as benefit-incidence analysis, cost-effectiveness analysis and national health accounts including disease-specific accounts in India.
Self-reported use of complementary and alternative medicine therapies in a reflexology randomized clinical trial.

PubMed

Wyatt, Gwen; Sikorskii, Alla; You, Mei

2013-01-01

According to the National Center for Complementary and Alternative Medicine (NCCAM), about one-third of American cancer patients have used complementary and alternative medicine (CAM). The objective of this secondary analysis was an assessment of the use of other CAM by women with advanced breast cancer who were undergoing chemotherapy and who participated in a randomized clinical trial (RCT) studying the safety and efficacy of reflexology. For this secondary analysis, the research team hypothesized an increased CAM use due to exposure to the reflexology trial. For this secondary analysis, the team conducted telephone interviews at baseline, wk 5, and wk 11 to assess the use of 23 common CAM therapies. The study took place at 14 medical oncology clinics across the Midwestern United States. Participants included women with advanced breast cancer who were undergoing chemotherapy and/or hormonal therapy. In the study related to this secondary analysis, the research team randomly assigned the women to one of three primary groups: (1) reflexology; (2) lay foot manipulation (LFM); and (3) control. In addition, the research team used two test groups to establish the study's protocol: (1) test reflexology and (2) test LFM. For this secondary analysis, the research team considered the two reflexology groups (test and intervention) and the two LFM groups (test and intervention) to be the active groups, comparing their use of CAM to the control group's use at the selected time points. The research team used a linear, mixed-effects model to analyze the number of therapies used at the three time points. The team performed t tests to compare therapy use at baseline for those women who completed the study vs those who dropped out. The team used the CAM-use instrument. In total, 385 women participated. The research team found no differences in CAM use for the active groups vs the control group over time or in those women who stayed in the study vs those who dropped out. The team found an increase in CAM use at wk 5 compared to baseline, followed by a decrease at wk 11; however, the time trends were the same in the active groups and the control group In women with advanced breast cancer, researchers can rely upon one assessment of CAM use during an RCT of a CAM therapy.
Do reciprocal relationships between academic workload and self-regulated learning predict medical freshmen's achievement? A longitudinal study on the educational transition from secondary school to medical school.

PubMed

Barbosa, Joselina; Silva, Álvaro; Ferreira, Maria Amélia; Severo, Milton

2018-04-16

One of the most important factors that makes the transition from secondary school to medical school challenging is the inability to put in the study time that a medical school curriculum demands. The implementation of regulated learning is essential for students to cope with medical course environment and succeed. This study aimed to investigate the reciprocal relationships between self-regulated learning skills (SRLS) and academic workload (AW) across secondary school to medical school transition. Freshmen enrolled in medical school (N = 102) completed questionnaires at the beginning and at the end of their academic year, assessing AW (measured as study time hours and perceived workload), SRLS (planning and strategies for learning assessment, motivation and action to learning and self-directedness) and academic achievement. An exploratory factor analysis (EFA) and a longitudinal path analysis were performed. According to the EFA, study time and perceived workload revealed two factors of AW: students who had a high perceived workload also demonstrated increased study time (tandem AW); and those who had a low perceived workload also demonstrated increased study time (inverse AW). Only a longitudinal relationship between SRLS and AW was found in the path analysis: prior self-directedness was related to later tandem AW. Moreover, success during the first year of medical school is dependent on exposure to motivation, self-directedness and high study time without overload during secondary school and medical school, and prior academic achievement. By better understanding these relationships, teachers can create conditions that support academic success during the first year medical school.
Estuarine Channel Evolution in Response to Closure of Secondary Basins: An Observational and Morphodynamic Modeling Study of the Western Scheldt Estuary

NASA Astrophysics Data System (ADS)

Nnafie, A.; VanÂ Oyen, T.; DeÂ Maerschalck, B.; vanÂ derÂ Vegt, M.; Wegen, M. van der

2018-01-01

The fringes of estuaries are often characterized by the presence of side embayments (secondary basins), with dimensions in the order of hundreds of meters to tens of kilometers. The presence of secondary basins significantly alters the hydrodynamic and sediment characteristics in the main estuary, implying that loss of secondary basin area due to human interventions might affect the estuarine morphodynamics. Analysis of historical bathymetric data of the Western Scheldt Estuary (Netherlands) suggests that closure of its secondary basins has triggered the observed lateral displacement of the nearby channels. This analysis motivated investigation of the impact of secondary basins on decadal evolution of estuarine channels, using the numerical model Delft3D. Model results show that channels that form near a secondary basin are located farther away from the bank of the estuary with respect to their positions in the case without a basin. Overall, results in cases with two or three basins are similar to those in case with one single basin. The wider the basin, the farther away the nearby channel forms. Removing a secondary basin causes a lateral displacement of the nearby channel toward the bank, indicating that the observed lateral displacement of channels in the Western Scheldt is triggered by closure of its secondary basins. The physical explanation is that tidal currents in the main estuary are weaker and more rotary near secondary basins, favoring sediment deposition and shoal development at these locations. Model results are particularly relevant for estuaries with moderate to high friction and converging width.
Current and desired competency levels of secondary agricultural teachers in Pennsylvania

NASA Astrophysics Data System (ADS)

Elbert, Chanda Dehron

The purpose of this study was to identify the competencies needed by secondary agricultural teachers in the Commonwealth of Pennsylvania. Specifically, this study identified competencies needed to help make teachers more effective while working with special needs students. The objectives of the study were to: (1) determine, verify, and evaluate competencies needed by secondary teachers of agriculture to work with handicapped students enrolled in agricultural and vocational education programs; (2) determine, verify, and evaluate competencies needed by secondary teachers of agriculture to work with economically disadvantaged students enrolled in agricultural and vocational education programs; (3) determine, verify, and evaluate competencies needed by secondary teachers of agriculture to work with academically challenged students enrolled in agricultural and vocational programs; and (4) evaluate the self-perceived competency levels of secondary agricultural education teachers and their desired competency levels. A 50% simple random sample of secondary agricultural teachers from the Directory for Agricultural Education in Pennsylvania, 1999--2000 was used. The design for the study was a descriptive study. The data collection instrument used was divided into five different areas: personal characteristics, professional role and development, instructional role, knowledge statements, and student leadership and organization. Subjects were asked to rate their present and desired levels of competency in the categories using a Likert-type scale. The competency scale was as follows: 1 = not competent; 2 = slightly competent, 3 = competent; 4 = very competent; 5 = extremely competent. There were 153 questionnaires mailed to the secondary agricultural education teachers. A total of 96 teachers responded to the questionnaire. Frequencies and distributions were used to describe demographic variables. T-test and analysis of variance were used to determine relationships between nominal variables. A paired t-test was used to conduct an analysis of each competency area identified. Repeated measures were used to compare differences among categories. The data suggested that all teachers rated their desired level of competencies higher than their current competency levels. It was recommended that teachers be given the opportunity to attend additional professional development programs which will increase their knowledge base while working with special needs students.
A Typology of Secondary Stressors Among Refugees of Conflict in the Middle East: The Case of Syrian Refugees in Jordan.

PubMed

Alfadhli, Khalifah; Drury, John

2018-05-10

As the years of displacement accumulate, the burden of secondary stressors (i.e., stressors not directly related to war) increase on the shoulders of millions of refugees, who do not have the option of either returning home due to war or having a sustainable livelihood in the host countries. This paper aims to shed light on the overlooked importance of secondary stressors among refugees of conflict in developing countries; it will do this by highlighting the experience of Syrian refugees in Jordan, and developing a typology of these stressors. We approached this issue using two levels of exploration. In study 1, we used participant observation and 15 in-depth interviews in Irbid, Jordan. Data were analysed qualitatively using thematic analysis to explore the different types of stressors. In study 2, a questionnaire survey among Syrian refugees in Jordan (n = 305) was used to collect data about a wide range of stressors. Responses were subjected to factor analysis to examine the extent to which the stressors could be organized into different factors. The thematic analysis suggested three different types of secondary stressors: financial (money related), environmental (exile structures and feelings created by it), and social (directly related to social relations). The factor analysis of the survey data produced a similar typology, where secondary stressors were found to be grouped into four main factors (financial, services, safety, and relations with out-groups). The final result is a typology of 33 secondary stressors organised in three main themes. Syrian refugees in Jordan suffer the most from financial stressors, due to loss of income and high living expenses. Environmental stressors arise from exile and are either circumstantial (e.g., services and legal requirements) or created by this environment (e.g., instability and lack of familiarity). Social stressors were observed among a considerable section of refugees, varying from stressors due to being targeted as a refugee by the locals (e.g., discrimination) to more traumatic stressors that came from both locals and other refugees (e.g., assault). The typology of secondary stressors suggested by the present analysis needs to be investigated in a larger sample of refugees of conflict in other countries in the Middle East, in order to determine its generality. We suggest that it is a basis for a framework for practitioners and academics working with refugees in the region. Armed conflict, Syrian, Jordan, refugees, forced displacement, exile, daily stressors, secondary stressors, trauma, typology.
The Multifaceted Challenges in Teacher-Student Relationships: A Qualitative Study of Teachers' and Principals' Experiences and Views Regarding the Dropout Rate in Norwegian Upper-Secondary Education

ERIC Educational Resources Information Center

Ottosen, Karl Ottar; Goll, Charlotte Bjørnskov; Sørlie, Tore

2017-01-01

The purpose of our study was to enhance understanding of teachers' and principals' experiences and views regarding the high dropout rate in Norwegian upper secondary schools. Qualitative analysis showed that the teacher-student relationships over years had become more complicated since the implementation of a new educational reform, making the…
Mathematics achievement and attitudes of senior secondary-school students in Transkei, South Africa.

PubMed

Kulubya, M M; Glencross, M J

1997-06-01

In a study of mathematics achievement and attitudes toward mathematics, a sample of 266 Standard 10 (Grade 12) students (98 boys and 168 girls) from 10 senior secondary schools in the Umtata district of Transkei, South Africa, were administered a mathematics achievement test and an attitude questionnaire. Contrary to other studies analysis showed no significant relationship between students' scores on measures of mathematics achievement and attitudes.
A System for Analyzing the Cost of Operating Vocational Education Programs at the Secondary Level in Ohio. A Study of School Year 1973-1974.

ERIC Educational Resources Information Center

Ohio State Dept. of Education, Columbus.

As a part of Ohio's program review and evaluation of vocational education, the report is concerned with a study of the costs of operating vocational education programs throughout the State. A cost analysis system for secondary level vocational education instructional programs was developed in 1970 and has been restudied each succeeding year. The…
Features of the Jordanian Cultural Identity in the Islamic Education Books for the Two Phases of Primary and Secondary Education in Jordan

ERIC Educational Resources Information Center

Alsoudi, Khalid A.

2017-01-01

The study aimed to investigate the subjects relating to the features of Jordanian cultural identity in Islamic education books for secondary and basic stages in Jordan which are (23) books through analyzing their content. For achieving the goals of the study, the researcher prepared an analysis list included a number of sub-elements distributed on…
Mid-Award Progress Report for Department of Energy Office of Science Graduate Student Research Program

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hoffman, M. K.

The purpose of the work proposed for this study is to investigate the behavior and transport mechanisms for cesium-137 in soils collected from contaminated sites with distinct source release scenarios. More specifically, this study aims to determine with which elements and minerals cesium-137 associates in these various environments to more reliably predict its migration in the subsurface. This will be achieved using a state-of-the-art analysis technique available at Lawrence Livermore National Laboratory (LLNL) known as NanoSIMS. Nano-scale secondary ion mass spectrometry, or NanoSIMS, is a destructive surface analysis technique in which positive secondary ions are generated from the surface ofmore » a sample and then quantified based on their mass-to-charge ratio (m/z) using mass spectrometry. The data collected about the secondary ions can then be used to create isotope-specific spatial maps with a resolution of a few hundred nanometers and depth profiles that show the variation of the secondary ion intensity with sputtering time. This should be an ideal technique for locating cesium-137 in a sample, as cesium is an easily ionized element, meaning the yield of secondary cesium (Cs) ions produced should be high and making the identification of cesium-137 straight forward.« less
Impacts of structuring the electronic health record: Results of a systematic literature review from the perspective of secondary use of patient data.

PubMed

Vuokko, Riikka; Mäkelä-Bengs, Päivi; Hyppönen, Hannele; Lindqvist, Minna; Doupi, Persephone

2017-01-01

To explore the impacts that structuring of electronic health records (EHRs) has had from the perspective of secondary use of patient data as reflected in currently published literature. This paper presents the results of a systematic literature review aimed at answering the following questions; (1) what are the common methods of structuring patient data to serve secondary use purposes; (2) what are the common methods of evaluating patient data structuring in the secondary use context, and (3) what impacts or outcomes of EHR structuring have been reported from the secondary use perspective. The reported study forms part of a wider systematic literature review on the impacts of EHR structuring methods and evaluations of their impact. The review was based on a 12-step systematic review protocol adapted from the Cochrane methodology. Original articles included in the study were divided into three groups for analysis and reporting based on their use focus: nursing documentation, medical use and secondary use (presented in this paper). The analysis from the perspective of secondary use of data includes 85 original articles from 1975 to 2010 retrieved from 15 bibliographic databases. The implementation of structured EHRs can be roughly divided into applications for documenting patient data at the point of care and application for retrieval of patient data (post hoc structuring). Two thirds of the secondary use articles concern EHR structuring methods which were still under development or in the testing phase. of structuring patient data such as codes, terminologies, reference information models, forms or templates and documentation standards were usually applied in combination. Most of the identified benefits of utilizing structured EHR data for secondary use purposes concentrated on information content and quality or on technical quality and reliability, particularly in the case of Natural Language Processing (NLP) studies. A few individual articles evaluated impacts on care processes, productivity and costs, patient safety, care quality or other health impacts. In most articles these endpoints were usually discussed as goals of secondary use and less as evidence-supported impacts, resulting from the use of structured EHR data for secondary purposes. Further studies and more sound evaluation methods are needed for evidence on how EHRs are utilized for secondary purposes, and how structured documentation methods can serve different users' needs, e.g. administration, statistics and research and development, in parallel to medical use purposes. Copyright Â© 2016 Elsevier Ireland Ltd. All rights reserved.
Evolutionary diversification of secondary mechanoreceptor cells in tunicata.

PubMed

Rigon, Francesca; Stach, Thomas; Caicci, Federico; Gasparini, Fabio; Burighel, Paolo; Manni, Lucia

2013-06-04

Hair cells are vertebrate secondary sensory cells located in the ear and in the lateral line organ. Until recently, these cells were considered to be mechanoreceptors exclusively found in vertebrates that evolved within this group. Evidence of secondary mechanoreceptors in some tunicates, the proposed sister group of vertebrates, has recently led to the hypothesis that vertebrate and tunicate secondary sensory cells share a common origin. Secondary sensory cells were described in detail in two tunicate groups, ascidians and thaliaceans, in which they constitute an oral sensory structure called the coronal organ. Among thaliaceans, the organ is absent in salps and it has been hypothesised that this condition is due to a different feeding system adopted by this group of animals. No information is available as to whether a comparable structure exists in the third group of tunicates, the appendicularians, although different sensory structures are known to be present in these animals. We studied the detailed morphology of appendicularian oral mechanoreceptors. Using light and electron microscopy we could demonstrate that the mechanosensory organ called the circumoral ring is composed of secondary sensory cells. We described the ultrastructure of the circumoral organ in two appendicularian species, Oikopleura dioica and Oikopleura albicans, and thus taxonomically completed the data collection of tunicate secondary sensory cells. To understand the evolution of secondary sensory cells in tunicates, we performed a cladistic analysis using morphological data. We constructed a matrix consisting of 19 characters derived from detailed ultrastructural studies in 16 tunicate species and used a cephalochordate and three vertebrate species as outgroups. Our study clearly shows that the circumoral ring is the appendicularian homologue of the coronal organ of other tunicate taxa. The cladistic analysis enabled us to reconstruct the features of the putative ancestral hair cell in tunicates, represented by a simple monociliated cell. This cell successively differentiated into the current variety of oral mechanoreceptors in the various tunicate lineages. Finally, we demonstrated that the inferred evolutionary changes coincide with major transitions in the feeding strategies in each respective lineage.
Quantitative Proteomics Analysis of Streptomyces coelicolor Development Demonstrates That Onset of Secondary Metabolism Coincides with Hypha Differentiation*

PubMed Central

Manteca, Angel; Sanchez, Jesus; Jung, Hye R.; Schwämmle, Veit; Jensen, Ole N.

2010-01-01

Streptomyces species produce many clinically important secondary metabolites, including antibiotics and antitumorals. They have a complex developmental cycle, including programmed cell death phenomena, that makes this bacterium a multicellular prokaryotic model. There are two differentiated mycelial stages: an early compartmentalized vegetative mycelium (first mycelium) and a multinucleated reproductive mycelium (second mycelium) arising after programmed cell death processes. In the present study, we made a detailed proteomics analysis of the distinct developmental stages of solid confluent Streptomyces coelicolor cultures using iTRAQ (isobaric tags for relative and absolute quantitation) labeling and LC-MS/MS. A new experimental approach was developed to obtain homogeneous samples at each developmental stage (temporal protein analysis) and also to obtain membrane and cytosolic protein fractions (spatial protein analysis). A total of 345 proteins were quantified in two biological replicates. Comparative bioinformatics analyses revealed the switch from primary to secondary metabolism between the initial compartmentalized mycelium and the multinucleated hyphae. PMID:20224110
Voice hearing: a secondary analysis of talk by people who hear voices.

PubMed

Jones, Malcolm; Coffey, Michael

2012-02-01

Unitary explanations of mental illness symptoms appear to be inadequate when faced with everyday experiences of living with these conditions. In particular, the experience of voice hearing is not sufficiently accounted for by biomedical explanations. This paper revisits data collected from a sample of people who hear voices to perform a secondary analysis with the aim of examining the explanatory devices deployed by individuals in their accounts of voice hearing. Secondary analysis is the use of existing data, collected for a previous study, in order to explore a research question distinct from the original inquiry. In this study, we subjected these data to a thematic analysis. People who hear voices make use of standard psychiatric explanations about the experience in their accounts. However, the accounts paint a more complex picture and show that people also impute personal meaning to the experience. This in turn implicates both personal and social identity; that is, how the person is known to themselves and to others. We suggest that this knowledge can inform a more thoughtful engagement with the experiences of voice hearing by mental health nurses. © 2011 The Authors; International Journal of Mental Health Nursing © 2011 Australian College of Mental Health Nurses Inc.
UPLC-QTOF analysis reveals metabolomic changes in the flag leaf of wheat (Triticum aestivum L.) under low-nitrogen stress.

PubMed

Zhang, Yang; Ma, Xin-Ming; Wang, Xiao-Chun; Liu, Ji-Hong; Huang, Bing-Yan; Guo, Xiao-Yang; Xiong, Shu-Ping; La, Gui-Xiao

2017-02-01

Wheat is one of the most important grain crop plants worldwide. Nitrogen (N) is an essential macronutrient for the growth and development of wheat and exerts a marked influence on its metabolites. To investigate the influence of low nitrogen stress on various metabolites of the flag leaf of wheat (Triticum aestivum L.), a metabolomic analysis of two wheat cultivars under different induced nitrogen levels was conducted during two important growth periods based on large-scale untargeted metabolomic analysis using ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-QTOF). Multivariate analyses-such as principle components analysis (PCA) and orthogonal partial least square discriminant analysis (OPLS-DA)-were used for data analysis. PCA yielded distinctive clustering information among the samples, classifying the wheat flag samples into two categories: those under normal N treatment and low N treatment. By processing OPLS-DA, eleven secondary metabolites were shown to be responsible for classifying the two groups. The secondary metabolites may be considered potential biomarkers of low nitrogen stress. Chemical analyses showed that most of the identified secondary metabolites were flavonoids and their related derivatives, such as iso-vitexin, iso-orientin and methylisoorientin-2″-O-rhamnoside, etc. This study confirmed the effect of low nitrogen stress on the metabolism of wheat, and revealed that the accumulation of secondary metabolites is a response to abiotic stresses. Meanwhile, we aimed to identify markers which could be used to monitor the nitrogen status of wheat crops, presumably to guide appropriate fertilization regimens. Furthermore, the UPLC-QTOF metabolic platform technology can be used to study metabolomic variations of wheat under abiotic stresses. Copyright © 2016 Elsevier Masson SAS. All rights reserved.

The multiple imputation method: a case study involving secondary data analysis.

PubMed

Walani, Salimah R; Cleland, Charles M

2015-05-01

To illustrate with the example of a secondary data analysis study the use of the multiple imputation method to replace missing data. Most large public datasets have missing data, which need to be handled by researchers conducting secondary data analysis studies. Multiple imputation is a technique widely used to replace missing values while preserving the sample size and sampling variability of the data. The 2004 National Sample Survey of Registered Nurses. The authors created a model to impute missing values using the chained equation method. They used imputation diagnostics procedures and conducted regression analysis of imputed data to determine the differences between the log hourly wages of internationally educated and US-educated registered nurses. The authors used multiple imputation procedures to replace missing values in a large dataset with 29,059 observations. Five multiple imputed datasets were created. Imputation diagnostics using time series and density plots showed that imputation was successful. The authors also present an example of the use of multiple imputed datasets to conduct regression analysis to answer a substantive research question. Multiple imputation is a powerful technique for imputing missing values in large datasets while preserving the sample size and variance of the data. Even though the chained equation method involves complex statistical computations, recent innovations in software and computation have made it possible for researchers to conduct this technique on large datasets. The authors recommend nurse researchers use multiple imputation methods for handling missing data to improve the statistical power and external validity of their studies.
The National Treatment Improvement Evaluation Study: Retention Analysis.

ERIC Educational Resources Information Center

Orwin, Rob; Williams, Valerie

This study focuses on programmatic factors that predict retention for individuals in drug and alcohol treatment programs through secondary analysis of data from the National Treatment Improvement Evaluation Study (NTIES). It addresses the relationships between completion rates, lengths of stay, and treatment modality. It examines the effect of…
Assembly and features of secondary metabolite biosynthetic gene clusters in Streptomyces ansochromogenes.

PubMed

Zhong, Xingyu; Tian, Yuqing; Niu, Guoqing; Tan, Huarong

2013-07-01

A draft genome sequence of Streptomyces ansochromogenes 7100 was generated using 454 sequencing technology. In combination with local BLAST searches and gap filling techniques, a comprehensive antiSMASH-based method was adopted to assemble the secondary metabolite biosynthetic gene clusters in the draft genome of S. ansochromogenes. A total of at least 35 putative gene clusters were identified and assembled. Transcriptional analysis showed that 20 of the 35 gene clusters were expressed in either or all of the three different media tested, whereas the other 15 gene clusters were silent in all three different media. This study provides a comprehensive method to identify and assemble secondary metabolite biosynthetic gene clusters in draft genomes of Streptomyces, and will significantly promote functional studies of these secondary metabolite biosynthetic gene clusters.
Associations Between Driving Performance and Engaging in Secondary Tasks: A Systematic Review

PubMed Central

Ferdinand, Alva O.

2014-01-01

We conducted a systematic review and meta-analysis of the literature examining the relationship between driving performance and engaging in secondary tasks. We extracted data from abstracts of 206 empirical articles published between 1968 and 2012 and developed a logistic regression model to identify correlates of a detrimental relationship between secondary tasks and driving performance. Of 350 analyses, 80% reported finding a detrimental relationship. Studies using experimental designs were 37% less likely to report a detrimental relationship (P = .014). Studies examining mobile phone use while driving were 16% more likely to find such a relationship (P = .009). Quasi-experiments can better determine the effects of secondary tasks on driving performance and consequently serve to inform policymakers interested in reducing distracted driving and increasing roadway safety. PMID:24432925
Secondary Analysis of Large-Scale Assessment Data: An Alternative to Variable-Centred Analysis

ERIC Educational Resources Information Center

Chow, Kui Foon; Kennedy, Kerry John

2014-01-01

International large-scale assessments are now part of the educational landscape in many countries and often feed into major policy decisions. Yet, such assessments also provide data sets for secondary analysis that can address key issues of concern to educators and policymakers alike. Traditionally, such secondary analyses have been based on a…
Consequences of Secondary Calibrations on Divergence Time Estimates.

PubMed

Schenk, John J

2016-01-01

Secondary calibrations (calibrations based on the results of previous molecular dating studies) are commonly applied in divergence time analyses in groups that lack fossil data; however, the consequences of applying secondary calibrations in a relaxed-clock approach are not fully understood. I tested whether applying the posterior estimate from a primary study as a prior distribution in a secondary study results in consistent age and uncertainty estimates. I compared age estimates from simulations with 100 randomly replicated secondary trees. On average, the 95% credible intervals of node ages for secondary estimates were significantly younger and narrower than primary estimates. The primary and secondary age estimates were significantly different in 97% of the replicates after Bonferroni corrections. Greater error in magnitude was associated with deeper than shallower nodes, but the opposite was found when standardized by median node age, and a significant positive relationship was determined between the number of tips/age of secondary trees and the total amount of error. When two secondary calibrated nodes were analyzed, estimates remained significantly different, and although the minimum and median estimates were associated with less error, maximum age estimates and credible interval widths had greater error. The shape of the prior also influenced error, in which applying a normal, rather than uniform, prior distribution resulted in greater error. Secondary calibrations, in summary, lead to a false impression of precision and the distribution of age estimates shift away from those that would be inferred by the primary analysis. These results suggest that secondary calibrations should not be applied as the only source of calibration in divergence time analyses that test time-dependent hypotheses until the additional error associated with secondary calibrations is more properly modeled to take into account increased uncertainty in age estimates.
The Effects of Chess Instruction on the Mathematics Achievement of Southern, Rural, Black Secondary Students.

ERIC Educational Resources Information Center

Smith, James P.; Cage. Bob N.

2000-01-01

Studied the effects of 120 hours of chess instruction on the mathematics achievement of southern, rural, black secondary students. Analysis of covariance results show the treatment group (11 females, 9 males) scored significantly higher than the control group (10 females, 10 males) in mathematics achievement. Discusses results in terms of altering…
An Analysis of Cognitive Style Profiles and Related Science Achievement Among Secondary School Students.

ERIC Educational Resources Information Center

Ogden, William R.; Brewster, Patricia M.

The purpose of this study was to identify cognitive styles for successful and unsuccessful science students at the secondary level. Additional purposes were to identify common and unique elements in these composite cognitive styles and to substantiate the description of the groups of successful and unsuccessful science students according to the…
Argumentation Tasks in Secondary English Language Arts, History, and Science: Variations in Instructional Focus and Inquiry Space

ERIC Educational Resources Information Center

Litman, Cindy; Greenleaf, Cynthia

2018-01-01

This study drew on observations of 40 secondary English language arts, history, and science lessons to describe variation in opportunities for students to engage in argumentation and possible implications for student engagement and learning. The authors focused their analysis on two broad dimensions of argumentation tasks: (1) "Instructional…
Analysis of a Teaching Experiment on Fair Distribution with Secondary School Students

ERIC Educational Resources Information Center

Antequera, A. T.; Espinel, M. C.

2011-01-01

The aim of this study is twofold. The first is to investigate the ability of secondary school students to understand the different distribution schemes and thus, indirectly, to contribute to the educational discussion and approach to be used for distribution problems so as to lessen reliance on the ubiquitous cross-multiplication rule in…
Using Graphing Software to Teach about Algebraic Forms: A Study of Technology-Supported Practice in Secondary-School Mathematics

ERIC Educational Resources Information Center

Ruthven, Kenneth; Deaney, Rosemary; Hennessy, Sara

2009-01-01

From preliminary analysis of teacher-nominated examples of successful technology-supported practice in secondary-school mathematics, the use of graphing software to teach about algebraic forms was identified as being an important archetype. Employing evidence from lesson observation and teacher interview, such practice was investigated in greater…
Who Is Retained in School, and When? Survival Analysis of Predictors of Grade Retention in Luxembourgish Secondary School

ERIC Educational Resources Information Center

Klapproth, Florian; Schaltz, Paule

2015-01-01

Based on a large longitudinal sample (N?=?9031) of Luxembourgish secondary school students, this study examined whether variables reflecting the sociodemographic background of the students (gender, nationality and socioeconomic status) as well as the school track proved to be predictors of grade retention. These possible predictors of grade…
Ability Grouping in Schools: An Analysis of Effects.

ERIC Educational Resources Information Center

Ireson, Judith; Hallam, Susan; Mortimore, Peter; Hack, Sarah; Clark, Helen

This paper presents preliminary findings from a large-scale study of ability grouping in English secondary schools. Forty-five secondary schools representing three levels of grouping took part in the research. Within these schools, data have been collected from a cohort of Year 9 pupils, aged 13-14 years. All these pupils took tests in English,…
Discipline in Public and Religious Elementary and Secondary Schools: A Comparative Analysis.

ERIC Educational Resources Information Center

Denig, Stephen J.

Previous studies using the Pupil-Control Ideology Scale (PCI) have found that in general, secondary school teachers have a more custodial attitude toward pupil control than do primary school teachers, and that public school teachers have a more custodial attitude than do religious school teachers. Teachers with custodial attitudes tend to distrust…
Open-Ended Science Inquiry in Lower Secondary School: Are Students' Learning Needs Being Met?

ERIC Educational Resources Information Center

Whannell, Robert; Quinn, Fran; Taylor, Subhashni; Harris, Katherine; Cornish, Scott; Sharma, Manjula

2018-01-01

Australian science curricula have promoted the use of investigations that allow secondary students to engage deeply with the methods of scientific inquiry, through student-directed, open-ended investigations over an extended duration. This study presents the analysis of data relating to the frequency of completion and attitudes towards long…
Moses' Black Wife: A Case Study Analysis of Secondary School Students' Arts-Based Projects

ERIC Educational Resources Information Center

Reingold, Matt

2014-01-01

Practitioner research was conducted on Grade 10 students' arts-based projects of Numbers 12 in order to assess the value of using the arts in Jewish secondary schools. Based on interview transcripts, projects, and written statements, three themes emerged that demonstrated why teachers should use the arts in their classes. The arts provided…
A Secondary School Student's Understanding of the Concept of Function--A Case Study

ERIC Educational Resources Information Center

Sajka, M.

2003-01-01

This article is concerned with an average student's understanding of the notion of function. It presents an analysis of a dialogue held with Kasia, a sixteen-years-old pupil of a general academic secondary school. The conversation concentrates on a non-standard problem--a functional equation. The theoretical framework used here is the PROCEPT…
Examining the Impact of Critical Feedback on Learner Engagement in Secondary Mathematics Classrooms: A Multi-Level Analysis

ERIC Educational Resources Information Center

Kearney, W. Sean; Webb, Michael; Goldhorn, Jeff; Peters, Michelle L.

2013-01-01

This article presents a quantitative study utilizing HLM to analyze classroom walkthrough data completed by principals within 87 secondary mathematics classrooms across 9 public schools in Texas. This research is based on the theoretical framework of learner engagement as established by Argryis & Schon (1996), and refined by Marks (2000). It…
A Multilevel Analysis of Black Male Secondary School Student Discipline and Achievement in Relation to Violence Exposure

ERIC Educational Resources Information Center

Garo, Laurie Ann

2017-01-01

This study examined school outcomes for Black male secondary school students in relation to neighborhood violence, focusing on Disproportionality in out of school suspension and below-proficiency achievement on selected standardized tests. Grounded in trauma and strain theories, student aggressive response to violence is attributed in part to…
What Do Secondary Students Really Learn during Investigations with Living Animals? Parameters for Effective Learning with Social Insects

ERIC Educational Resources Information Center

Sammet, Rebecca; Dreesmann, Daniel

2017-01-01

Exemplary for social insects, "Temnothorax" ants allow for various hands-on investigations in biology classes. The aim of this study was to provide a quantitative and qualitative analysis of secondary school students' learning achievement after teaching units with ants lasting between one and six weeks. The questionnaires included…

Lessons Learned from Secondary Schools Using Technology for School Improvement: It's Just Not That Simple!

ERIC Educational Resources Information Center

Levin, Barbara B.; Schrum, Lynne

2014-01-01

The purpose of this article is to describe lessons learned from studying the leadership in eight award-winning secondary schools and districts that were recognized for successfully leveraging technology as part of their efforts for school improvement. Data were collected through observations, interviews, and document analysis in schools and…
Understanding avoidant leadership in health care: findings from a secondary analysis of two qualitative studies.

PubMed

Jackson, Debra; Hutchinson, Marie; Peters, Kath; Luck, Lauretta; Saltman, Deborah

2013-04-01

To illuminate ways that avoidant leadership can be enacted in contemporary clinical settings. Avoidance is identified in relation to laissez-faire leadership and passive avoidant leadership. However, the nature and characteristics of avoidance and how it can be enacted in a clinical environment are not detailed. This paper applied secondary analysis to data from two qualitative studies. We have identified three forms of avoidant leader response: placating avoidance, where leaders affirmed concerns but abstained from action; equivocal avoidance, where leaders were ambivalent in their response; and hostile avoidance, where the failure of leaders to address concerns escalated hostility towards the complainant. Through secondary analysis of two existing sets of data, we have shed new light on avoidant leaderships and how it can be enacted in contemporary clinical settings. Further work needs to be undertaken to better understand this leadership style. We recommend that organizations ensure that all nurse leaders are aware of how best to respond to concerns of wrongdoing and that mechanisms are created to ensure timely feedback is provided about the actions taken. © 2012 Blackwell Publishing Ltd.
Source apportionment of 1 h semi-continuous data during the 2005 Study of Organic Aerosols in Riverside (SOAR) using positive matrix factorization

NASA Astrophysics Data System (ADS)

Eatough, Delbert J.; Grover, Brett D.; Woolwine, Woods R.; Eatough, Norman L.; Long, Russell; Farber, Robert

Positive matrix factorization (PMF2) was used to elucidate sources of fine particulate material (PM 2.5) for a study conducted during July and August 2005, in Riverside, CA. One-hour averaged semi-continuous measurements were made with a suite of instruments to provide PM 2.5 mass and chemical composition data. Total PM 2.5 mass concentrations (non-volatile plus semi-volatile) were measured with an R&P filter dynamic measurement system (FDMS TEOM) and a conventional TEOM monitor was used to measure non-volatile mass concentrations. PM 2.5 chemical species monitors included a dual-oven Sunset monitor to measure both non-volatile and semi-volatile carbonaceous material, an ion chromatographic-based monitor to measure sulfate and nitrate and an Anderson Aethalometer to measure black carbon (BC). Gas phase data including CO, NO 2, NO x and O 3 were also collected during the sampling period. In addition, single-particle measurements were made using aerosol time-of-flight mass spectrometry (ATOFMS). Twenty different single-particle types consistent with those observed in previous ATOFMS studies in Riverside were identified for the PMF2 analysis. Finally, time-of-flight aerosol mass spectrometry (ToF-AMS) provided data on markers of primary and secondary organic aerosol. Two distinct PMF2 analyses were performed. In analysis 1, all the data except for the ATOFMS and ToF-AMS data were used in an initial evaluation of sources at Riverside during the study. PMF2 was able to identify six factors from the data set corresponding to both primary and secondary sources, primarily from automobile emissions, diesel emissions, secondary nitrate formation, a secondary photochemical associated source, organic emissions and Basin transported pollutants. In analysis 2, the ATOFMS and ToF-AMS data were included in the analysis. In the second analysis, PMF2 was able to identify 16 factors with a variety of both primary and secondary factors being identified, corresponding to both primary and secondary material from both anthropogenic and natural sources. Based on relationships with Basin meteorology, the PMF identified source profiles and diurnal patterns in the source concentrations, sources were identified as being of local origin or resulting from transport of pollutants across the Basin due to onshore flow. Good agreement was observed between the PMF2 predicted mass and the FDMS measured mass for both analyses.
Secondary prevention and cognitive function after stroke: a study protocol for a 5-year follow-up of the ASPIRE-S cohort

PubMed Central

Williams, David; Gaynor, Eva; Bennett, Kathleen; Dolan, Eamon; Callaly, Elizabeth; Large, Margaret; Hickey, Anne

2017-01-01

Introduction Cognitive impairment is common following stroke and can increase disability and levels of dependency of patients, potentially leading to greater burden on carers and the healthcare system. Effective cardiovascular risk factor control through secondary preventive medications may reduce the risk of cognitive decline. However, adherence to medications is often poor and can be adversely affected by cognitive deficits. Suboptimal medication adherence negatively impacts secondary prevention targets, increasing the risk of recurrent stroke and further cognitive decline. The aim of this study is to profile cognitive function and secondary prevention, including adherence to secondary preventive medications and healthcare usage, 5 years post-stroke. The prospective associations between cognition, cardiovascular risk factors, adherence to secondary preventive medications, and rates of recurrent stroke or other cardiovascular events will also be explored. Methods and analysis This is a 5-year follow-up of a prospective study of the Action on Secondary Prevention Interventions and Rehabilitation in Stroke (ASPIRE-S) cohort of patients with stroke. This cohort will have a detailed assessment of cognitive function, adherence to secondary preventive medications and cardiovascular risk factor control. Ethics and dissemination Ethical approval for this study was granted by the Research Ethics Committees at Beaumont Hospital, Dublin and Connolly Hospital, Dublin, Mater Misericordiae University Hospital, Dublin, and the Royal College of Surgeons in Ireland. Findings will be disseminated through presentations and peer-reviewed publications. PMID:28348196
Comparative analysis of different secondary optical elements for aspheric primary lenses.

PubMed

Victoria, M; Domínguez, C; Antón, I; Sala, G

2009-04-13

The performance of different reflexive and refractive secondaries optimized for the same primary lens is studied by using ray-tracing simulation. Different solutions are approached according to materials and manufacturing processes currently available in the market, which can be potentially cost-effective for concentrator photovoltaic (CPV) modules. They are compared in terms of system optical efficiency and acceptance angle. In addition, irradiance distribution over the cell is also studied.
Post-16 Physics and Chemistry Uptake: Combining Large-Scale Secondary Analysis with In-Depth Qualitative Methods

ERIC Educational Resources Information Center

Hampden-Thompson, Gillian; Lubben, Fred; Bennett, Judith

2011-01-01

Quantitative secondary analysis of large-scale data can be combined with in-depth qualitative methods. In this paper, we discuss the role of this combined methods approach in examining the uptake of physics and chemistry in post compulsory schooling for students in England. The secondary data analysis of the National Pupil Database (NPD) served…
Role of DNA secondary structures in fragile site breakage along human chromosome 10

PubMed Central

Dillon, Laura W.; Pierce, Levi C. T.; Ng, Maggie C. Y.; Wang, Yuh-Hwa

2013-01-01

The formation of alternative DNA secondary structures can result in DNA breakage leading to cancer and other diseases. Chromosomal fragile sites, which are regions of the genome that exhibit chromosomal breakage under conditions of mild replication stress, are predicted to form stable DNA secondary structures. DNA breakage at fragile sites is associated with regions that are deleted, amplified or rearranged in cancer. Despite the correlation, unbiased examination of the ability to form secondary structures has not been evaluated in fragile sites. Here, using the Mfold program, we predict potential DNA secondary structure formation on the human chromosome 10 sequence, and utilize this analysis to compare fragile and non-fragile DNA. We found that aphidicolin (APH)-induced common fragile sites contain more sequence segments with potential high secondary structure-forming ability, and these segments clustered more densely than those in non-fragile DNA. Additionally, using a threshold of secondary structure-forming ability, we refined legitimate fragile sites within the cytogenetically defined boundaries, and identified potential fragile regions within non-fragile DNA. In vitro detection of alternative DNA structure formation and a DNA breakage cell assay were used to validate the computational predictions. Many of the regions identified by our analysis coincide with genes mutated in various diseases and regions of copy number alteration in cancer. This study supports the role of DNA secondary structures in common fragile site instability, provides a systematic method for their identification and suggests a mechanism by which DNA secondary structures can lead to human disease. PMID:23297364
On the secondary eyewall formation of Hurricane Edouard (2014)

PubMed Central

Abarca, Sergio F.; Montgomery, Michael T.; Braun, Scott A.; Dunion, Jason

2018-01-01

A first observationally-based estimation of departures from gradient wind balance during secondary eyewall formation is presented. The study is based on the Atlantic Hurricane Edouard (2014). This storm was observed during the National Aeronautics and Space Administration’s (NASA) Hurricane and Severe Storm Sentinel (HS3) experiment, a field campaign conducted in collaboration with the National Oceanic and Atmospheric Administration (NOAA). A total of 135 dropsondes are analyzed in two separate time periods: one named the secondary eyewall formation period and the other one referred to as the decaying-double eyewalled storm period. During the secondary eyewall formation period, a time when the storm was observed to have only one eyewall, the diagnosed agradient force has a secondary maxima that coincides with the radial location of the secondary eyewall observed in the second period of study. The maximum spin up tendency of the radial influx of absolute vertical vorticity is within the boundary layer in the region of the eyewall of the storm and the spin up tendency structure elongates radially outward into the secondary region of supergradient wind, where the secondary wind maxima is observed in the second period of study. An analysis of the boundary-layer averaged vertical structure of equivalent potential temperature reveals a conditionally unstable environment in the secondary eyewall formation region. These findings support the hypothesis that deep convective activity in this region contributed to spin up of the boundary layer tangential winds and the formation of a secondary eyewall that is observed during the decaying-double eyewalled storm period. PMID:29651170
On the Secondary Eyewall Formation of Hurricane Edouard (2014)

NASA Technical Reports Server (NTRS)

Abarca, Sergio F.; Montgomery, Michael T.; Braun, Scott A.; Dunion, Jason

2016-01-01

A first observationally-based estimation of departures from gradient wind balance during secondary eyewall formation is presented. The study is based on the Atlantic Hurricane Edouard (2014). This storm was observed during the National Aeronautics and Space Administrations (NASA) Hurricane and Severe Storm Sentinel (HS3) experiment, a field campaign conducted in collaboration with the National Oceanic and Atmospheric Administration (NOAA). A total of 135 dropsondes are analyzed in two separate time periods: one named the secondary eyewall formation period and the other one referred to as the decaying-double eyewalled storm period. During the secondary eyewall formation period, a time when the storm was observed to have only one eyewall, the diagnosed agradient force has a secondary maxima that coincides with the radial location of the secondary eyewall observed in the second period of study. The maximum spin up tendency of the radial influx of absolute vertical vorticity is within the boundary layer in the region of the eyewall of the storm and the spin up tendency structure elongates radially outward into the secondary region of supergradient wind, where the secondary wind maxima is observed in the second period of study. An analysis of the boundary layer averaged vertical structure of equivalent potential temperature reveals a conditionally unstable environment in the secondary eyewall formation region. These findings support the hypothesis that deep convective activity in this region contributed to spin up of the boundary layer tangential winds and the formation of a secondary eyewall that is observed during the decaying-double eyewalled storm period.
On the secondary eyewall formation of Hurricane Edouard (2014).

PubMed

Abarca, Sergio F; Montgomery, Michael T; Braun, Scott A; Dunion, Jason

2016-09-01

A first observationally-based estimation of departures from gradient wind balance during secondary eyewall formation is presented. The study is based on the Atlantic Hurricane Edouard (2014). This storm was observed during the National Aeronautics and Space Administration's (NASA) Hurricane and Severe Storm Sentinel (HS3) experiment, a field campaign conducted in collaboration with the National Oceanic and Atmospheric Administration (NOAA). A total of 135 dropsondes are analyzed in two separate time periods: one named the secondary eyewall formation period and the other one referred to as the decaying-double eyewalled storm period. During the secondary eyewall formation period, a time when the storm was observed to have only one eyewall, the diagnosed agradient force has a secondary maxima that coincides with the radial location of the secondary eyewall observed in the second period of study. The maximum spin up tendency of the radial influx of absolute vertical vorticity is within the boundary layer in the region of the eyewall of the storm and the spin up tendency structure elongates radially outward into the secondary region of supergradient wind, where the secondary wind maxima is observed in the second period of study. An analysis of the boundary-layer averaged vertical structure of equivalent potential temperature reveals a conditionally unstable environment in the secondary eyewall formation region. These findings support the hypothesis that deep convective activity in this region contributed to spin up of the boundary layer tangential winds and the formation of a secondary eyewall that is observed during the decaying-double eyewalled storm period.
Correlation of MFOLD-predicted DNA secondary structures with separation patterns obtained by capillary electrophoresis single-strand conformation polymorphism (CE-SSCP) analysis.

PubMed

Glavac, Damjan; Potocnik, Uros; Podpecnik, Darja; Zizek, Teofil; Smerkolj, Sava; Ravnik-Glavac, Metka

2002-04-01

We have studied 57 different mutations within three beta-globin gene promoter fragments with sizes 52 bp, 77 bp, and 193 bp by fluorescent capillary electrophoresis CE-SSCP analysis. For each mutation and wild type, energetically most-favorable predicted secondary structures were calculated for sense and antisense strands using the MFOLD DNA-folding algorithm in order to investigate if any correlation exists between predicted DNA structures and actual CE migration time shifts. The overall CE-SSCP detection rate was 100% for all mutations in three studied DNA fragments. For shorter 52 bp and 77 bp DNA fragments we obtained a positive correlation between the migration time shifts and difference in free energy values of predicted secondary structures at all temperatures. For longer 193 bp beta-globin gene fragments with 46 mutations MFOLD predicted different secondary structures for 89% of mutated strands at 25 degrees C and 40 degrees C. However, the magnitude of the mobility shifts did not necessarily correlate with their secondary structures and free energy values except for the sense strand at 40 degrees C where this correlation was statistically significant (r = 0.312, p = 0.033). Results of this study provided more direct insight into the mechanism of CE-SSCP and showed that MFOLD prediction could be helpful in making decisions about the running temperatures and in prediction of CE-SSCP data patterns, especially for shorter (50-100 bp) DNA fragments. Copyright 2002 Wiley-Liss, Inc.
Graphic Organizers and Students with Learning Disabilities: A Meta-Analysis

ERIC Educational Resources Information Center

Dexter, Douglas D.; Hughes, Charles A.

2011-01-01

This meta-analysis reviews experimental and quasi-experimental studies in which upper-elementary, intermediate, and secondary students with learning disabilities learned from graphic organizers. Following an exhaustive search for studies meeting specified design criteria, 55 standardized mean effect sizes were extracted from 16 articles involving…
Quantitative Surface Analysis of a Binary Drug Mixture—Suppression Effects in the Detection of Sputtered Ions and Post-Ionized Neutrals

NASA Astrophysics Data System (ADS)

Karras, Gabriel; Lockyer, Nicholas P.

2014-05-01

A systematic mass spectrometric study of two of the most common analgesic drugs, paracetamol and ibuprofen, is reported. The drugs were studied by means of secondary ion mass spectrometry (SIMS) and secondary neutral mass spectrometry (SNMS) using laser post-ionization (LPI) both in pure samples and in a two-component mixture. Ion suppression within the two-component system observed in SIMS mode is ameliorated using LPI under room temperature analysis. However, suppression effects are apparent in LPI mode on performing the analysis at cryogenic temperatures, which we attribute to changes in the desorption characteristics of sputtered molecules, which influences the subsequent post-ionization efficiency. This suggests different mechanisms of ion suppression in SIMS and LPI modes.
How teaching practices are connected to student intention to enrol in upper secondary school physics courses

NASA Astrophysics Data System (ADS)

Juuti, Kalle; Lavonen, Jari

2016-05-01

Background: In developed countries, it is challenging for teachers to select pedagogical practices that encourage students to enrol in science and technology courses in upper secondary school. Purpose: Aiming to understand the enrolment dynamics, this study analyses sample-based data from Finland's National Assessment in Science to determine whether pedagogical approaches influence student intention to enrol in upper secondary school physics courses. Sample: This study examined a clustered sample of 2949 Finnish students in the final year of comprehensive school (15-16 years old). Methods: Through explorative factor analysis, we extracted several variables that were expected to influence student intention to enrol in physics courses. We applied partial correlation to determine the underlying interdependencies of the variables. Results: The analysis revealed that the main predictor of enrolment in upper secondary school physics courses is whether students feel that physics is important. Although statistically significant, partial correlations between variables were rather small. However, the analysis of partial correlations revealed that pedagogical practices influence inquiry and attitudinal factors. Pedagogical practices that emphasise science experimentation and the social construction of knowledge had the strongest influence. Conclusions: The research implies that to increase student enrolment in physics courses, the way students interpret the subject's importance needs to be addressed, which can be done by the pedagogical practices of discussion, teacher demonstrations, and practical work.
Anterior maxillary segmental distraction in the treatment of severe maxillary hypoplasia secondary to cleft lip and palate.

PubMed

Li, Hongliang; Dai, Jiewen; Si, Jiawen; Zhang, Jianfei; Wang, Minjiao; Shen, Steve Guofang; Yu, Hongbo

2015-01-01

Anterior maxillary segmental distraction (AMSD) is an effective surgical procedure in the treatment of maxillary hypoplasia secondary to cleft lip and palate. Its unique advantage of preserving velopharyngeal function makes this procedure widely applied. In this study, the application of AMSD was described and its long-term stability was explored. Eight patients with severe maxillary hypoplasia secondary to CLP were included in this study. They were treated with AMSD using rigid external distraction (RED) device. Cephalometric analysis was performed twice at three time points for evaluation: before surgery (T1), after distraction (T2), and 2 years after treatment (T3). One-way analysis of variance was used to assess the differences statistically. All the distractions completed smoothly, and maxilla was distracted efficiently. The value of SNA, NA-FH, Ptm-A, U1-PP, overjet and PP (ANS-PNS) increased significantly after the AMSD procedure (P < 0.05), with the mean overjet increased by 14.28 mm. However, comparison of cephalometric analysis between T2 and T3 showed no significant difference (P > 0.05). Changes of palatopharyngeal depth and soft palatal length were insignificant. AMSD with RED device provided an effective way to correct maxillary hypoplasia secondary to CLP, extended the palatal and arch length, avoided damage on velopharyngeal closure function and reduced the relapse rate. It is a promising and valuable technique in this potentially complicated procedure.
Incorporating additional targets into learning trials for individuals with autism spectrum disorder.

PubMed

Nottingham, Casey L; Vladescu, Jason C; Kodak, Tiffany M

2015-01-01

Recently, researchers have investigated the effectiveness and efficiency of presenting secondary targets during learning trials for individuals with autism spectrum disorder (ASD). This instructional method may be more efficient than typical methods used with learners with ASD, because learners may acquire secondary targets without additional instruction. This review will discuss the recent literature on providing secondary targets during teaching trials for individuals with ASD, identify common aspects and results among these studies, and identify areas for future research. © Society for the Experimental Analysis of Behavior.
Experimental study on secondary electron emission characteristics of Cu

NASA Astrophysics Data System (ADS)

Liu, Shenghua; Liu, Yudong; Wang, Pengcheng; Liu, Weibin; Pei, Guoxi; Zeng, Lei; Sun, Xiaoyang

2018-02-01

Secondary electron emission (SEE) of a surface is the origin of the multipacting effect which could seriously deteriorate beam quality and even perturb the normal operation of particle accelerators. Experimental measurements on secondary electron yield (SEY) for different materials and coatings have been developed in many accelerator laboratories. In fact, the SEY is just one parameter of secondary electron emission characteristics which include spatial and energy distribution of emitted electrons. A novel experimental apparatus was set up in China Spallation Neutron Source, and an innovative method was applied to obtain the whole characteristics of SEE. Taking Cu as the sample, secondary electron yield, its dependence on beam injection angle, and the spatial and energy distribution of secondary electrons were achieved with this measurement device. The method for spatial distribution measurement was first proposed and verified experimentally. This contribution also tries to give all the experimental results a reasonable theoretical analysis and explanation.
Vocal Affect Recognition and Psychopathy: Converging Findings Across Traditional and Cluster Analytic Approaches to Assessing the Construct

PubMed Central

Bagley, Amy D.; Abramowitz, Carolyn S.; Kosson, David S.

2010-01-01

Deficits in emotion processing have been widely reported to be central to psychopathy. However, few prior studies have examined vocal affect recognition in psychopaths, and these studies suffer from significant methodological limitations. Moreover, prior studies have yielded conflicting findings regarding the specificity of psychopaths’ affect recognition deficits. This study examined vocal affect recognition in 107 male inmates under conditions requiring isolated prosodic vs. semantic analysis of affective cues and compared subgroups of offenders identified via cluster analysis on vocal affect recognition. Psychopaths demonstrated deficits in vocal affect recognition under conditions requiring use of semantic cues and conditions requiring use of prosodic cues. Moreover, both primary and secondary psychopaths exhibited relatively similar emotional deficits in the semantic analysis condition compared to nonpsychopathic control participants. This study demonstrates that psychopaths’ vocal affect recognition deficits are not due to methodological limitations of previous studies and provides preliminary evidence that primary and secondary psychopaths exhibit generally similar deficits in vocal affect recognition. PMID:19413412
Anterior-Inferior Plating Results in Fewer Secondary Interventions Compared to Superior Plating for Acute Displaced Midshaft Clavicle Fractures.

PubMed

Serrano, Rafael; Borade, Amrut; Mir, Hassan; Shah, Anjan; Watson, David; Infante, Anthony; Frankle, Mark A; Mighell, Mark A; Sagi, H Claude; Horwitz, Daniel S; Sanders, Roy W

2017-09-01

To determine whether a difference in plate position for fixation of acute, displaced, midshaft clavicle fractures would affect the rate of secondary intervention. Retrospective Comparative Study. Two academic Level 1 Regional Trauma Centers. Five hundred ten patients treated surgically for an acutely displaced midshaft clavicle fracture between 2000 and 2013 were identified and reviewed retrospectively at a minimum of 24 months follow-up (F/U). Fractures were divided into 2 cohorts, according to plate position: Anterior-Inferior (AI) or Superior (S). Exclusion criteria included age <16 years, incomplete data records, and loss to F/U. Group analysis included demographics (age, sex, body mass index), fracture characteristics (mechanism of injury, open or closed), hand dominance, ipsilateral injuries, time between injury to surgery, time to radiographic union, length of F/U, and frequency of secondary procedures. Patients were treated either with AI or S clavicle plating at the treating surgeon's discretion. Rate and reason for secondary intervention. Fisher exact test, t test. and odds ratio were used for statistical analysis. Final analysis included 252 fractures/251 patients. One hundred eighteen (47%) were in group AI; 134 (53%) were in group S. No differences in demographics, fracture characteristics, time to surgery, time to union, or length of F/U existed between groups. Seven patients/7 fractures (5.9%) in Group AI underwent a secondary surgery whereas 30 patients/30 fractures (22.3%) in group S required a secondary surgery. An additional intervention secondary to superior plate placement was highly statistically significant (P < 0.001). Furthermore, because 80% of these subsequent interventions were a result of plate irritation with patient discomfort, the odds ratio for a second procedure was 5 times greater in those fractures treated with a superior plate. This comparative analysis indicates that AI plating of midshaft clavicle fractures seems to lessen clinical irritation and results in significantly fewer secondary interventions. Considering patient satisfaction and a reduced financial burden to the health care system, we recommend routine AI plate application when open reduction internal fixation of the clavicle is indicated. Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.
Why Go Back to School? Investigating the Motivations of Student Parents to Pursue Post-Secondary Education

ERIC Educational Resources Information Center

van Rhijn, Tricia; Lero, Donna S.; Burke, Taniesha

2016-01-01

This study explored the factors that motivate student parents to pursue post-secondary education. Student parents at four Canadian universities (n = 398) completed open-ended questions on their reasons for attending school in an online survey. Using Possible Selves Theory as a lens, we conducted a directed content analysis and found that student…

The Nexus between Science Literacy & Technical Literacy: A State by State Analysis of Engineering Content in State Science Standards

ERIC Educational Resources Information Center

Koehler, Catherine M.; Faraclas, Elias; Giblin, David; Moss, David M.; Kazerounian, Kazem

2013-01-01

This study explores how engineering concepts are represented in secondary science standards across the nation by examining how engineering and technical concepts are infused into these frameworks. Secondary science standards from 49 states plus the District of Columbia were analyzed and ranked based on how many engineering concepts were found.…
Secondary Traumatic Stress and Burnout in Child Welfare Workers: A Comparative Analysis of Occupational Distress across Professional Groups

ERIC Educational Resources Information Center

Sprang, Ginny; Craig, Carlton; Clark, James

2011-01-01

This study describes predictors of secondary traumatic stress and burnout in a national sample of helping professionals, with a specific focus on the unique responses of child welfare (CW) workers. Specific worker and exposure characteristics are examined as possible predictors of these forms of occupational distress in a sample of 669…
FOREIGN LANGUAGE ENROLLMENTS IN SEVENTH-DAY ADVENTIST AND CATHOLIC PAROCHIAL SECONDARY SCHOOLS, FALL, 1959.

ERIC Educational Resources Information Center

Modern Language Association of America, New York, NY. Foreign Language Program Research Center.

THIS ENROLLMENT SURVEY OF FOREIGN LANGUAGE STUDY IN RELIGIOUS SECONDARY SCHOOLS IS THE COMPANION PIECE TO FIVE OTHERS CONDUCTED BY THE MODERN LANGUAGE ASSOCIATION IN THE FALL TERM OF 1959, THE TERM SELECTED AS THE NORM FOR FUTURE CALCULATIONS. THE INTRODUCTORY SURVEY OF THE GROSS NATIONAL PICTURE WITH AN ANALYSIS OF ATTRITION AMONG FOREIGN…
An Analysis of a Subject Department in an English Secondary School Using the Collaborative Practice Analytical Framework

ERIC Educational Resources Information Center

James, Christopher; Goodhew, Carolyn

2011-01-01

This article reports the outcomes of research into the nature of and influences on collective working in an English secondary school. A design and technology department was studied over a 13-month period. Data collection was by interviews, observations and document scrutiny. The findings were analysed using collaborative practice (CP) analytical…
Resilience and Intercultural Education on Secondary School: A Comparative Study in Mexico and Germany

ERIC Educational Resources Information Center

Robelo, Octaviano García; Pérez, Ileana Casasola

2017-01-01

This paper presents one product of a research report about the promotion of resilience in the school setting in two public secondary schools, located in Mexico and Germany, and its relation with the pupils' multiculturalism. The paper focuses on the need of the results' analysis to identify the school actors' perceptions of the promotion of…
Predicting Homework Time Management at the Secondary School Level: A Multilevel Analysis

ERIC Educational Resources Information Center

Xu, Jianzhong

2010-01-01

The purpose of this study is to test empirical models of variables posited to predict homework time management at the secondary school level. Student- and class-level predictors of homework time management were analyzed in a survey of 1895 students from 111 classes. Most of the variance in homework time management occurred at the student level,…
Learner Acquisition and Its Relationship with Constructivist Learner Roles in a Secondary Education Chemistry Curriculum in Québec/Canada

ERIC Educational Resources Information Center

Aydin, Abdullah

2013-01-01

This study aims to identify constructivist learner roles in acquisitions in the secondary education chemistry curriculum of the province of Québec/Canada. This research used document analysis as a qualitative research method. According to our findings; the "learner roles" in curriculum correspond with the "student roles"…
Effects of Secondary School Students' Perceptions of Mathematics Education Quality on Mathematics Anxiety and Achievement

ERIC Educational Resources Information Center

Çiftçi, S. Koza

2015-01-01

The two aims of this study are as follows: (1) to compare the differences in mathematics anxiety and achievement in secondary school students according to their perceptions of the quality of their mathematics education via a cluster analysis and (2) to test the effects of the perception of mathematics education quality on anxiety and achievement…
Managing patient pathways to achieve lung cancer waiting time targets: mixed methods study

PubMed Central

Ip, Hugh; Amer, Tarik; Dangoor, Michael; Zamir, Affan; Gibbings-Isaac, Darryl; Kochhar, Ranjeev; Heymann, Timothy

2012-01-01

Objectives England's National Health Service (NHS) introduced a 62-day target, from referral to treatment, to make lung cancer patient pathways more efficient. This study aims to understand pathway delays that lead to breaches of the target when patients need care in both secondary and tertiary setting, so more than one institution is involved. Design Mixed methods cross case analysis. Setting Two tertiary referral hospitals in London. Participants Database records of 53 patients were analysed. Nineteen sets of patient notes were used for pathway mapping. Seventeen doctors, four nurses, eight managers and administrators were interviewed. Main outcome measures Qualitative methods include pathway mapping and semi-structured interviews. Quantitative analysis of patient pathway times from cancer services records. Results The majority of the patient pathway (68.4%) is spent in secondary centres. There is more variability in the processes of secondary centres but tertiary centres do not have perfect processes either. Three themes emerged from discussions: information flows, pathway performance and the role of the multidisciplinary approach. Conclusions The actions of secondary centres have a greater influence on whether a patient breaches the 62-day target, compared with tertiary centres. Nevertheless variability exists in both, with potential for improvement. PMID:23162682
Influence of perceptions and stereotypes of the nursing role on career choice in secondary students: A regional perspective.

PubMed

Raymond, Anita; James, Ainsley; Jacob, Elisabeth; Lyons, Judith

2018-03-01

This study examined the influence that perceptions and stereotypes of the nursing role had on future career choice of rural secondary students. The study was undertaken to identify a method of attracting final year secondary school students to an undergraduate nursing degree at a rural University. A mixed method study using a pre-post-interventional design. The rural campus of an Australian university. 71 secondary students attending a secondary school career development program at a rural Australian university. Semi structured questionnaires were used for data collection. The surveys were analysed using descriptive statistics and content analysis of open-ended survey questions. The research supports the importance of being aware of young people's impressions about nurses and nursing as a career, to ensure the successful implementation of targeted recruitment. Targeted recruitment strategies can increase students' awareness of the wide variety of pathways within nursing, rather than leaving awareness to what family, friends or career advisers tell them, or how nurses are portrayed on television, movies and the media. Copyright © 2018 Elsevier Ltd. All rights reserved.
Increasing instructional efficiency by presenting additional stimuli in learning trials for children with autism spectrum disorders.

PubMed

Vladescu, Jason C; Kodak, Tiffany M

2013-12-01

The current study examined the effectiveness and efficiency of presenting secondary targets within learning trials for 4 children with an autism spectrum disorder. Specifically, we compared 4 instructional conditions using a progressive prompt delay. In 3 conditions, we presented secondary targets in the antecedent or consequence portion of learning trials, or in the absence of prompts and reinforcement. In the fourth condition (control), we did not include secondary targets in learning trials. Results replicate and extend previous research by demonstrating that the majority of participants acquired secondary targets presented in the antecedent and consequent events of learning trials. © Society for the Experimental Analysis of Behavior.
Gender Effects in Classroom Interaction: Data Collection, Self-Analysis and Reflection.

ERIC Educational Resources Information Center

Drudy, Sheelagh; Chathain, Maire Ui

2002-01-01

Conducted an action research project among student teachers emphasizing teacher self-analysis and reflection and studied the patterns of classroom interactions with male and female students taught by these teachers in 136 classrooms in Irish secondary schools. Findings from the classroom interaction study motivated student teachers to take…
Analysis of secondary motions in square duct flow

NASA Astrophysics Data System (ADS)

Modesti, Davide; Pirozzoli, Sergio; Orlandi, Paolo; Grasso, Francesco

2018-04-01

We carry out direct numerical simulations (DNS) of square duct flow spanning the friction Reynolds number range {Re}τ * =150-1055, to study the nature and the role of secondary motions. We preliminarily find that secondary motions are not the mere result of the time averaging procedure, but rather they are present in the instantaneous flow realizations, corresponding to large eddies persistent in both space and time. Numerical experiments have also been carried out whereby the secondary motions are suppressed, hence allowing to quantifying their effect on the mean flow field. At sufficiently high Reynolds number, secondary motions are found to increase the friction coefficient by about 3%, hence proportionally to their relative strength with respect to the bulk flow. Simulations without secondary motions are found to yield larger deviations on the mean velocity profiles from the standard law-of-the-wall, revealing that secondary motions act as a self-regulating mechanism of turbulence whereby the effect of the corners is mitigated.
Is math anxiety in the secondary classroom limiting physics mastery? A study of math anxiety and physics performance

NASA Astrophysics Data System (ADS)

Mercer, Gary J.

This quantitative study examined the relationship between secondary students with math anxiety and physics performance in an inquiry-based constructivist classroom. The Revised Math Anxiety Rating Scale was used to evaluate math anxiety levels. The results were then compared to the performance on a physics standardized final examination. A simple correlation was performed, followed by a multivariate regression analysis to examine effects based on gender and prior math background. The correlation showed statistical significance between math anxiety and physics performance. The regression analysis showed statistical significance for math anxiety, physics performance, and prior math background, but did not show statistical significance for math anxiety, physics performance, and gender.
A photometric study of the eclipsing binary RX Hercules

NASA Technical Reports Server (NTRS)

Jeffreys, K. W.

1980-01-01

A new photoelectric light curve of RX Hercules, a binary system with similar components, has been analyzed using Wood's computer model. RX Her, using Popper's spectroscopic mass ratio of q = 0.8472, turned out to be composed of a dimmer AO component and a larger B9.5 component. This detached system, upon analysis of the residuals in secondary minimum, shows some asymmetry during ingress which then disappears just before secondary minimum. The eccentricity e = 0.022 determined in this study is a little larger than previously published values of e = 0.018. In combination with the spectroscopic analysis of Popper, and ubvy data of Olson and Hill and Hilditch new photometric elements for RX Her were found.
"Textbook as a Contradictory Melting-Pot": An Analysis of Multicultural Content in Korean Textbooks

ERIC Educational Resources Information Center

Cho, Youngdal; Park, Yunkyoung

2016-01-01

In this study we will observe how multicultural content is covered in elementary and secondary schools in Korea. For this purpose, a total of 52 textbooks (social studies, ethics and Korean language from third to ninth grade) were analysed using two analysis frames. The first frame is the "multicultural content analysis frame (MCAF)"…
Bullying Victimisation and Social Support of Adolescent Male Dance Students: An Analysis of Findings

ERIC Educational Resources Information Center

Risner, Doug

2014-01-01

This analysis (n?=?33), drawn from the findings of the author's larger mixed method research study, investigated bullying and harassment of adolescent male students (ages 13-18) pursuing dance study at the pre-professional level in the United States. Procedures for this analysis included review of primary and secondary sources from the…
Secondary Data Analysis of National Surveys in Japan Toward Improving Population Health

PubMed Central

Ikeda, Nayu

2016-01-01

Secondary data analysis of national health surveys of the general population is a standard methodology for health metrics and evaluation; it is used to monitor trends in population health over time and benchmark the performance of health systems. In Japan, the government has established electronic databases of individual records from national surveys of the population’s health. However, the number of publications based on these datasets is small considering the scale and coverage of the surveys. There appear to be two major obstacles to the secondary use of Japanese national health survey data: strict data access control under the Statistics Act and an inadequate interdisciplinary research environment for resolving methodological difficulties encountered when dealing with secondary data. The usefulness of secondary analysis of survey data is evident with examples from the author’s previous studies based on vital records and the National Health and Nutrition Surveys, which showed that (i) tobacco smoking and high blood pressure are the major risk factors for adult mortality from non-communicable diseases in Japan; (ii) the decrease in mean blood pressure in Japan from the late 1980s to the early 2000s was partly attributable to the increased use of antihypertensive medication and reduced dietary salt intake; and (iii) progress in treatment coverage and control of high blood pressure is slower in Japan than in the United States and Britain. National health surveys in Japan are an invaluable asset, and findings from secondary analyses of these surveys would provide important suggestions for improving health in people around the world. PMID:26902170
Evaluating the economic viability of a material recovery system: the case of cathode ray tube glass.

PubMed

Gregory, Jeremy R; Nadeau, Marie-Claude; Kirchain, Randolph E

2009-12-15

This paper presents an analysis of the material recovery system for leaded glass from cathode ray tubes (CRTs) using a dynamic material flow analysis. In particular, the global mass flow of primary and secondary CRT glass and the theoretical capacities for using secondary CRT glass to make new CRT glass are analyzed. The global mass flow analysis indicates that the amount of new glass required is decreasing, but is much greater than the amount of secondary glass collected, which is increasing. The comparison of the ratio of secondary glass collected to the amount of new glass required from the mass flow analysis indicates that the material recovery system is sustainable for the foreseeable future. However, a prediction of the time at which the market for secondary glass will collapse due to excess capacity is not possible at the moment due to several sources of uncertainty.
An analysis of characteristics of post-authorisation studies registered on the ENCePP EU PAS Register

PubMed Central

Carroll, Robert; Ramagopalan, Sreeram V.; Cid-Ruzafa, Javier; Lambrelli, Dimitra; McDonald, Laura

2017-01-01

Background: The objective of this study was to investigate the study design characteristics of Post-Authorisation Studies (PAS) requested by the European Medicines Agency which were recorded on the European Union (EU) PAS Register held by the European Network of Centres for Pharmacoepidemiology and Pharmacovigilance (ENCePP). Methods: We undertook a cross-sectional descriptive analysis of all studies registered on the EU PAS Register as of 18 th October 2016. Results: We identified a total of 314 studies on the EU PAS Register, including 81 (26%) finalised, 160 (51%) ongoing and 73 (23%) planned. Of those studies identified, 205 (65%) included risk assessment in their scope, 133 (42%) included drug utilisation and 94 (30%) included effectiveness evaluation. Just over half of the studies (175; 56%) used primary data capture, 135 (43%) used secondary data and 4 (1%) used a hybrid design combining both approaches. Risk assessment and effectiveness studies were more likely to use primary data capture (60% and 85% respectively as compared to 39% and 14% respectively for secondary). The converse was true for drug utilisation studies where 59% were secondary vs. 39% for primary. For type 2 diabetes mellitus, database studies were more commonly used (80% vs 3% chart review, 3% hybrid and 13% primary data capture study designs) whereas for studies in oncology, primary data capture were more likely to be used (85% vs 4% chart review, and 11% database study designs). Conclusions: Results of this analysis show that PAS design varies according to study objectives and therapeutic area. PMID:29188016

Healthcare experiences of women with visual impairment.

PubMed

Sharts-Hopko, Nancy C; Smeltzer, Suzanne; Ott, Barbara B; Zimmerman, Vanessa; Duffin, Janice

2010-01-01

This investigation was a secondary analysis of focus group transcripts to address the question of how women with low vision or blindness have experienced healthcare. Secondary analysis of qualitative data was performed on transcripts from 2 focus groups. These focus groups were conducted at an agency serving visually impaired people in Philadelphia. The 2 focus groups included 7 and 11 women, respectively, having low-vision or who are blind who had been part of an original study of reaching hard-to-reach women with disabilities. Content analysis for the identification of thematic clusters was performed on transcriptions of the focus group data. Findings are consistent with existing research on the health needs of women with disabilities but add specific understanding related to visual impairment. Six thematic categories were identified: health professionals' awareness, information access, healthcare access, isolation, the need for self-advocacy, and perception by others. Secondary analysis of qualitative data affords in-depth understanding of a particular subset of participants within a larger study. Clinical nurse specialists and other health professionals need to increase their sensitivity to the challenges faced by women with visual impairment, and plan and provide care accordingly. Health professions students need to be prepared to interact with people who are visually impaired and healthcare settings need to respond to their needs.
Characteristics of tuberculosis patients who generate secondary cases.

PubMed

Rodrigo, T; Caylà, J A; García de Olalla, P; Galdós-Tangüis, H; Jansà, J M; Miranda, P; Brugal, T

1997-08-01

To determine the characteristics of smear positive tuberculosis (TB) patients who generate secondary TB cases. Those smear positive TB patients detected by the Barcelona Tuberculosis Program between 1990-1993, and for whom contact studies had been performed, were studied. We analyzed the predictive role of the variables: age, sex, intravenous drug use (IVDU), the presence of the acquired immune deficiency syndrome (AIDS), human immunodeficiency virus (HIV) infection, radiology pattern, district of residence, history of imprisonment, alcoholism, smoking, history of TB, treatment compliance and the number of secondary cases generated. Statistical analysis was based on the logistic regression model, calculating the odds ratios (OR) with 95% confidence intervals (CI). Of the 1079 patients studied, 78 (7.2%) had generated only one secondary case, and 30 (2.8%) two or more. The variables associated with generating two or more secondary cases were: IVDU (P < 0.001; OR = 4.06; CI: 1.80-9.15), cavitary radiology pattern (P = 0.002; OR = 3.69; CI: 1.62-8.43), and age (P = 0.016; OR = 0.98; CI: 0.96-0.99). When we examined those who had generated one or more secondary cases, the following variables were significant: IVDU (P = 0.043; OR = 1.75; CI: 1.02-3.02), cavitary radiology pattern (P < 0.001; OR = 3.07; CI: 1.98-4.77) and age (P < 0.001; OR = 0.98; CI: 0.97-0.99). The study of the contacts of smear positive TB patients allows us to detect an important number of secondary cases. Young adults, those with cavitary radiology pattern, and IVDU are more likely to generate secondary cases.
A Second Look at Dwyer's Studies by Means of Meta-Analysis: The Effects of Pictorial Realism on Text Comprehension and Vocabulary.

ERIC Educational Resources Information Center

Reinwein, Joachim; Huberdeau, Lucie

A meta-analysis examined a series of studies by F.M. Dwyer on the effect of illustrations on text comprehension. Principal component analysis was used to reduce the four posttests used by Dwyer to more fundamental factors of learning, followed by analyses of variance. All nine studies (involving secondary-school and college students) in which…
Multiscale Roughness Influencing on Transport Behavior of Passive Solute through a Single Self-affine Fracture

NASA Astrophysics Data System (ADS)

Dou, Z.

2017-12-01

In this study, the influence of multi-scale roughness on transport behavior of the passive solute through the self-affine fracture was investigated. The single self-affine fracture was constructed by the successive random additions (SRA) and the fracture roughness was decomposed into two different scales (i.e. large-scale primary roughness and small-scale secondary roughness) by the Wavelet analysis technique. The fluid flow in fractures, which was characterized by the Forchheimer's law, showed the non-linear flow behaviors such as eddies and tortuous streamlines. The results indicated that the small-scale secondary roughness was primarily responsible for the non-linear flow behaviors. The direct simulations of asymptotic passive solute transport represented the Non-Fickian transport characteristics (i.e. early arrivals and long tails) in breakthrough curves (BTCs) and residence time distributions (RTDs) with and without consideration of the secondary roughness. Analysis of multiscale BTCs and RTDs showed that the small-scale secondary roughness played a significant role in enhancing the Non-Fickian transport characteristics. We found that removing small-scale secondary roughness led to the lengthening arrival and shortening tail. The peak concentration in BTCs decreased as the secondary roughness was removed, implying that the secondary could also enhance the solute dilution. The estimated BTCs by the Fickian advection-dispersion equation (ADE) yielded errors which decreased with the small-scale secondary roughness being removed. The mobile-immobile model (MIM) was alternatively implemented to characterize the Non-Fickian transport. We found that the MIM was more capable of estimating Non-Fickian BTCs. The small-scale secondary roughness resulted in the decreasing mobile domain fraction and the increasing mass exchange rate between immobile and mobile domains. The estimated parameters from the MIM could provide insight into the inherent mechanism of roughness-induced Non-Fickian transport behaviors.
THE PHOTOMETRIC STUDY OF A NEGLECTED NEAR CONTACT BINARY: BS VULPECULAE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Zhu, L.-Y.; Qian, S.-B.; Zejda, M.

2012-08-15

We present a detailed study of the close eclipsing binary BS Vulpeculae. Although it is relatively bright (V: 10.9-11.6 mag) and belongs to short-periodic variable stars (P = 0.48 days), it is rather neglected. To perform a thorough period analysis, we collected all available photometric observations that span the time interval of 1898-2010. Observations include archive photographic plate measurements and visually determined eclipse minima timings done in 1979-2003, which were later shown to be biased to accommodate the existing linear ephemeris. Applying our own direct period analysis we found a well-defined shortening of the orbital period of dP/dt = -6.70(17)more » Multiplication-Sign 10{sup -11} = -2.11(6) ms yr{sup -1}, which implies a continual mass flow from the primary to the secondary component. Using the 2003 version of the Wilson-Van Hamme code, our new complete BV(IR){sub C} light curves were analyzed and the physical parameters of the system were derived. We found that BS Vul is a near contact binary system with the primary component filling its critical Roche lobe. The luminosity enhancement on the left shoulder of the secondary minimum shown in the light curves can be explained as a result of a persistent hot spot on the secondary due to the mass transfer from the primary component to the secondary one and heating the facing hemisphere of the secondary component, which is consistent with our result of period analysis. With the period decrease, BS Vul will evolve toward the contact phase. It is another good observational example as predicted by the theory of thermal relaxation oscillations.« less
Quantification of the effects of secondary matrix on the analysis of sandstone composition, and a petrographic-chemical technique for retrieving original framework grain modes of altered sandstones.

PubMed

Cox, R; Lowe, D R

1996-05-01

Most studies of sandstone provenance involve modal analysis of framework grains using techniques that exclude the fine-grained breakdown products of labile mineral grains and rock fragments, usually termed secondary matrix or pseudomatrix. However, the data presented here demonstrate that, when the proportion of pseudomatrix in a sandstone exceeds 10%, standard petrographic analysis can lead to incorrect provenance interpretation. Petrographic schemes for provenance analysis such as QFL and QFR should not therefore be applied to sandstones containing more than 10% secondary matrix. Pseudomatrix is commonly abundant in sandstones, and this is therefore a problem for provenance analysis. The difficulty can be alleviated by the use of whole-rock chemistry in addition to petrographic analysis. Combination of chemical and point-count data permits the construction of normative compositions that approximate original framework grain compositions. Provenance analysis is also complicated in many cases by fundamental compositional alteration during weathering and transport. Many sandstones, particularly shallow marine deposits, have undergone vigorous reworking, which may destroy unstable mineral grains and rock fragments. In such cases it may not be possible to retrieve provenance information by either petrographic or chemical means. Because of this, pseudomatrix-rich sandstones should be routinely included in chemical-petrological provenance analysis. Because of the many factors, both pre- and post-depositional, that operate to increase the compositional maturity of sandstones, petrologic studies must include a complete inventory of matrix proportions, grain size and sorting parameters, and an assessment of depositional setting.
Selection of Drought Tolerant Maize Hybrids Using Path Coefficient Analysis and Selection Index.

PubMed

Dao, Abdalla; Sanou, Jacob; V S Traore, Edgar; Gracen, Vernon; Danquah, Eric Y

2017-01-01

In drought-prone environments, direct selection for yield is not adequate because of the variable environment and genotype x environment interaction. Therefore, the use of secondary traits in addition to yield has been suggested. The relative usefulness of secondary traits as indirect selection criteria for maize grain yield is determined by the magnitudes of their genetic variance, heritability and genetic correlation with the grain yield. Forty eight testcross hybrids derived from lines with different genetic background and geographical origins plus 7 checks were evaluated in both well-watered and water-stressed conditions over two years for grain yield and secondary traits to determine the most appropriate secondary traits and select drought tolerant hybrids. Study found that broad-sense heritability of grain yield and Ear Per Plant (EPP) increased under drought stress. Ear aspect (EASP) and ear height (EHT) had larger correlation coefficients and direct effect on grain yield but in opposite direction, negative and positive respectively. Traits like, EPP, Tassel Size (TS) and Plant Recovery (PR) contributed to increase yield via EASP by a large negative indirect effect. Under drought stress, EHT had positive and high direct effect and negative indirect effect via plant height on grain yield indicating that the ratio between ear and plant heights (R-EPH) was associated to grain yield. Path coefficient analysis showed that traits EPP, TS, PR, EASP, R-EPH were important secondary traits in the present experiment. These traits were used in a selection index to classify hybrids according to their performance under drought. The selection procedure included also a Relative Decrease in Yield (RDY) index. Some secondary traits reported as significant selection criteria for selection under drought stress were not finally established in the present study. This is because the relationship between grain and secondary traits can be affected by various factors including germplasm, environment and applied statistical analysis. Therefore, different traits and selection procedure should be applied in the selection process of drought tolerant genotypes for diverse genetic materials and growing conditions.
Cost of delivering secondary-level health care services through public sector district hospitals in India

PubMed Central

Prinja, Shankar; Balasubramanian, Deepak; Jeet, Gursimer; Verma, Ramesh; Kumar, Dinesh; Bahuguna, Pankaj; Kaur, Manmeet; Kumar, Rajesh

2017-01-01

Background & objectives: Despite an impetus for strengthening public sector district hospitals for provision of secondary health care in India, there is lack of robust evidence on cost of services provided through these district hospitals. In this study, an attempt was made to determine the unit cost of an outpatient visit consultation, inpatient bed-day of hospitalization, surgical procedure and overall per-capita cost of providing secondary care through district hospitals. Methods: Economic costing of five randomly selected district hospitals in two north Indian States - Haryana and Punjab, was undertaken. Cost analysis was done using a health system perspective and employing bottom-up costing methodology. Quantity of all resources - capital or recurrent, used for delivering services was measured and valued. Median unit costs were estimated along with their 95 per cent confidence intervals. Sensitivity analysis was undertaken to assess the effect of uncertainties in prices and other assumptions; and to generalize the findings for Indian set-up. Results: The overall annual cost of delivering secondary-level health care services through a public sector district hospital in north India was 11,44,13,282 [US Dollars (USD) 2,103,185]. Human resources accounted for 53 per cent of the overall cost. The unit cost of an inpatient bed-day, surgical procedure and outpatient consultation was 844 (USD 15.5), i; 3481 (USD 64) and 170 (USD 3.1), respectively. With the current set of resource allocation, per-capita cost of providing health care through district hospitals in north India was 139 (USD 2.5). Interpretation & conclusions: The estimates obtained in our study can be used for Fiscal planning of scaling up secondary-level health services. Further, these may be particularly useful for future research such as benefit-incidence analysis, cost-effectiveness analysis and national health accounts including disease-specific accounts in India. PMID:29355142
Analysis of sequencing data for probing RNA secondary structures and protein-RNA binding in studying posttranscriptional regulations.

PubMed

Hu, Xihao; Wu, Yang; Lu, Zhi John; Yip, Kevin Y

2016-11-01

High-throughput sequencing has been used to study posttranscriptional regulations, where the identification of protein-RNA binding is a major and fast-developing sub-area, which is in turn benefited by the sequencing methods for whole-transcriptome probing of RNA secondary structures. In the study of RNA secondary structures using high-throughput sequencing, bases are modified or cleaved according to their structural features, which alter the resulting composition of sequencing reads. In the study of protein-RNA binding, methods have been proposed to immuno-precipitate (IP) protein-bound RNA transcripts in vitro or in vivo By sequencing these transcripts, the protein-RNA interactions and the binding locations can be identified. For both types of data, read counts are affected by a combination of confounding factors, including expression levels of transcripts, sequence biases, mapping errors and the probing or IP efficiency of the experimental protocols. Careful processing of the sequencing data and proper extraction of important features are fundamentally important to a successful analysis. Here we review and compare different experimental methods for probing RNA secondary structures and binding sites of RNA-binding proteins (RBPs), and the computational methods proposed for analyzing the corresponding sequencing data. We suggest how these two types of data should be integrated to study the structural properties of RBP binding sites as a systematic way to better understand posttranscriptional regulations. © The Author 2015. Published by Oxford University Press. For Permissions, please email: journals.permissions@oup.com.
The Contributions of Primary and Secondary Memory to Working Memory Capacity: An Individual Differences Analysis of Immediate Free Recall

ERIC Educational Resources Information Center

Unsworth, Nash; Spillers, Gregory J.; Brewer, Gene A.

2010-01-01

The present study tested the dual-component model of working memory capacity (WMC) by examining estimates of primary memory and secondary memory from an immediate free recall task. Participants completed multiple measures of WMC and general intellectual ability as well as multiple trials of an immediate free recall task. It was demonstrated that…
Critical behavior in the system cyclopentanone + water + secondary butyl alcohol

NASA Astrophysics Data System (ADS)

Krishna, U. Santhi; Unni, P. K. Madhavan

2018-05-01

We report detailed measurements of coexistence surface in the ternary system cylcopentanone + water + secondary butyl alcohol. The coexistence surface is seen to have an unusual tunnel like feature and is a potential system in which special critical points such as the Quadruple Critical Point (QCP) could be studied. Analysis of coexistence curves indicates that the system shows 3D-Ising like critical behavior.
Thai-Alberta Co-Operative Assessment Project Concerning Thirty-Two Rural Secondary Schools in the Third National Economic and Social Plan, Thailand (1972-1976). Final Report.

ERIC Educational Resources Information Center

Chareonchai, Ruang; And Others

This extensive assessment project report focuses on the Rural Secondary Schools (RSS) Project in Thailand. The background, design, rationale and objectives of the assessment are described, as are the eight phases of the study: reconnaissance; proposals; basic planning and pre-testing; data collection; analysis; academic review; final report; and…
Comparative Analysis on the Nature of Proof to Be Taught in Geometry: The Cases of French and Japanese Lower Secondary Schools

ERIC Educational Resources Information Center

Miyakawa, Takeshi

2017-01-01

This paper reports the results of an international comparative study on the nature of proof to be taught in geometry. Proofs in French and Japanese lower secondary schools were explored by analyzing curricular documents: mathematics textbooks and national curricula. Analyses on the three aspects of proof--statement, proof, and theory--suggested by…
An Analysis on Dropout Levels of Public Secondary Schools in Kericho District in Relation to Selected School Characteristics

ERIC Educational Resources Information Center

Sang, Anthony K. A.; Koros, Peter K. A.; Bosire, Joseph N.

2013-01-01

The Education Sector in Kenya and other parts of the world has faced many challenges particularly dropouts, which is an indicator of low internal efficiency during the past two decades. This study sought to determine and analyze the dropout levels of Public Secondary Schools in Kericho District of Kenya for the period between 2004 and 2007. The…
Teaching a New Method of Partial Fraction Decomposition to Senior Secondary Students: Results and Analysis from a Pilot Study

ERIC Educational Resources Information Center

Man, Yiu-Kwong; Leung, Allen

2012-01-01

In this paper, we introduce a new approach to compute the partial fraction decompositions of rational functions and describe the results of its trials at three secondary schools in Hong Kong. The data were collected via quizzes, questionnaire and interviews. In general, according to the responses from the teachers and students concerned, this new…
Analysis of Parental Involvement and Self-Esteem on Secondary School Students in Kieni West Sub-County, Nyeri County, Kenya

ERIC Educational Resources Information Center

Wairimu, Mburu Josephine; Macharia, Susan M.; Muiru, Ann

2016-01-01

This study investigated the relationship between parental involvement and the self-esteem among adolescents in secondary school students in Kieni West District in Nyeri County. It was guided by Self Determination Theory (SDT) by James William and Baumrind Theory of Parenting Styles by Diana Blumberg Baumrind. Some of the gaps identified in the…
An Analysis of Labwork Tasks Used in Science Teaching at Upper Secondary School and University Levels in Several European Countries.

ERIC Educational Resources Information Center

Tiberghien, Andree; Veillard, Laurent; Le Marechal, Jean-Francois; Buty, Christian; Millar, Robin

2001-01-01

Describes the results of a study on the similarities and differences in laboratory tasks used in science education at upper secondary school and university level in the three main science subjects in seven European countries. Some differences are noted between the science subjects and educational levels, but the dominant impression of the analysis…
The Role of Teacher Characteristics and Practices on Upper Secondary School Students' Mathematics Self-Efficacy in Nyanza Province of Kenya: A Multilevel Analysis

ERIC Educational Resources Information Center

Bagaka's, Joshua Gisemba

2011-01-01

The study identified two dimensions of teacher self-efficacy and practices and five dimensions of students' mathematics self-efficacy and sought to determine the extent to which teacher characteristics and practices can enhance secondary school students' self-efficacy. Data were collected from 13,173 students in 193 teachers' classrooms from 141…
A comparative analysis of the diversity of woody vegetation in old-growth and secondary southern Appalachian cove forests

Treesearch

Lyle J. Guyon; Gary L. Rolfe; John M. Edgington; Guillermo A. Mendoza

2003-01-01

Characteristics of woody vegetation were compared across six different southern Appalachian cove forests. Trees greater than 6.35 cm dbh were point sampled and regeneration was tallied on 25 m² subplots at all study sites. Overstory composition and structure differed between secondary and old-growth sites, which were dominated by yellow-poplar and eastern...
An Analysis of the Content, Policies and Assessment of ICT Curricula in the Final Years of Secondary Schooling in Australia and Vietnam: A Comparative Educational Study

ERIC Educational Resources Information Center

Tran, Thang Manh; Stoilescu, Dorian

2016-01-01

This paper explores and analyses similarities and differences in ICT curricula, policies, and assessment between the Vietnamese and Australian educational systems for the final years of secondary educational level. It was found that while having a common core set of tendencies, the Australian ICT curricula, policies, and assessments differ…

Teachers' Awareness and Usage of Non-Violent Strategies for the Maintenance of Discipline in Nigerian Secondary Schools: A Situational Analysis

ERIC Educational Resources Information Center

Uzoechina, Gladys Oby; Oguegbu, Adaeze; Akachukwu, Esther; Nwasor, Victor Chekume

2015-01-01

This study sought to determine teachers' level of awareness and usage of non-violent strategies/interventions for the maintenance of discipline in secondary schools in Anambra State, Nigeria. Corporal punishment has become an unwritten sine qua non for the maintenance of school discipline--often the first thought that comes to the minds of…
Environmental Impact Assessment and End-of-Life Treatment Policy Analysis for Li-Ion Batteries and Ni-MH Batteries

PubMed Central

Yu, Yajuan; Chen, Bo; Huang, Kai; Wang, Xiang; Wang, Dong

2014-01-01

Based on Life Cycle Assessment (LCA) and Eco-indicator 99 method, a LCA model was applied to conduct environmental impact and end-of-life treatment policy analysis for secondary batteries. This model evaluated the cycle, recycle and waste treatment stages of secondary batteries. Nickel-Metal Hydride (Ni-MH) batteries and Lithium ion (Li-ion) batteries were chosen as the typical secondary batteries in this study. Through this research, the following results were found: (1) A basic number of cycles should be defined. A minimum cycle number of 200 would result in an obvious decline of environmental loads for both battery types. Batteries with high energy density and long life expectancy have small environmental loads. Products and technology that help increase energy density and life expectancy should be encouraged. (2) Secondary batteries should be sorted out from municipal garbage. Meanwhile, different types of discarded batteries should be treated separately under policies and regulations. (3) The incineration rate has obvious impact on the Eco-indicator points of Nickel-Metal Hydride (Ni-MH) batteries. The influence of recycle rate on Lithium ion (Li-ion) batteries is more obvious. These findings indicate that recycling is the most promising direction for reducing secondary batteries’ environmental loads. The model proposed here can be used to evaluate environmental loads of other secondary batteries and it can be useful for proposing policies and countermeasures to reduce the environmental impact of secondary batteries. PMID:24646862
Environmental impact assessment and end-of-life treatment policy analysis for Li-ion batteries and Ni-MH batteries.

PubMed

Yu, Yajuan; Chen, Bo; Huang, Kai; Wang, Xiang; Wang, Dong

2014-03-18

Based on Life Cycle Assessment (LCA) and Eco-indicator 99 method, a LCA model was applied to conduct environmental impact and end-of-life treatment policy analysis for secondary batteries. This model evaluated the cycle, recycle and waste treatment stages of secondary batteries. Nickel-Metal Hydride (Ni-MH) batteries and Lithium ion (Li-ion) batteries were chosen as the typical secondary batteries in this study. Through this research, the following results were found: (1) A basic number of cycles should be defined. A minimum cycle number of 200 would result in an obvious decline of environmental loads for both battery types. Batteries with high energy density and long life expectancy have small environmental loads. Products and technology that help increase energy density and life expectancy should be encouraged. (2) Secondary batteries should be sorted out from municipal garbage. Meanwhile, different types of discarded batteries should be treated separately under policies and regulations. (3) The incineration rate has obvious impact on the Eco-indicator points of Nickel-Metal Hydride (Ni-MH) batteries. The influence of recycle rate on Lithium ion (Li-ion) batteries is more obvious. These findings indicate that recycling is the most promising direction for reducing secondary batteries' environmental loads. The model proposed here can be used to evaluate environmental loads of other secondary batteries and it can be useful for proposing policies and countermeasures to reduce the environmental impact of secondary batteries.
Sex differences in opinion towards mental illness of secondary school students in Hong Kong.

PubMed

Ng, P; Chan, K F

2000-01-01

Sex differences in social attitudes have been well documented. Women hold more positive attitudes toward mental illness than men do. This paper reports on the effect of sex differences in a study of secondary school students' opinions about mental illness in Hong Kong. A total of 2,223 secondary school students, drawn by random sample, completed a 45-item questionnaire on Opinion about Mental Illness in Chinese Community (OMICC) with a six-point Likert Scale. Individual items with weak correlations were eliminated, leaving 33 items for analysis (Cronbach's Alpha = .866). Using factor analysis six factors were identified. These include: Benevolence, Separatism, Stereotyping, Restrictiveness, Pessimistic Prediction and Stigmatization. Results showed that girls scored higher regarding benevolence. Boys were found to have more stereotyping, restrictive, pessimistic and stigmatizing attitudes towards mental illness.
Using SHRP 2 naturalistic driving data to assess drivers' speed choice while being engaged in different secondary tasks.

PubMed

Schneidereit, Tina; Petzoldt, Tibor; Keinath, Andreas; Krems, Josef F

2017-09-01

The engagement in secondary tasks while driving has been found to result in considerable impairments of driving performance. Texting has especially been suspected to be associated with an increased crash risk. At the same time, there is evidence that drivers use various self-regulating strategies to compensate for the increased demands caused by secondary task engagement. One of the findings reported from multiple studies is a reduction in driving speed. However, most of these studies are of experimental nature and do not let the drivers decide for themselves to (not) engage in the secondary task, and therefore, eliminate other strategies of self-regulation (e.g., postponing the task). The goal of the present analysis was to investigate if secondary task engagement results in speed adjustment also under naturalistic conditions. Our analysis relied on data of the SHRP 2 naturalistic driving study. To minimize the influence of potentially confounding factors on drivers' speed choice, we focused on episodes of free flow driving on interstates/highways. Driving speed was analyzed before, during, and after texting, smoking, eating, and adjusting/monitoring radio or climate control; in a total of 403 episodes. Data show some indication for speed adjustment for texting, especially when driving with high speed. However, the effect sizes were small and behavioral patterns varied considerably between drivers. The engagement in the other tasks did not influence drivers' speed behavior significantly. While drivers might indeed reduce speed slightly to accommodate for secondary task engagement, other forms of adaptation (e.g., strategic decisions) might play a more important role in a natural driving environment. The use of naturalistic driving data to study drivers' self-regulatory behavior at an operational level has proven to be promising. Still, in order to obtain a comprehensive understanding about drivers' self-regulatory behavior, a mixed-method approach is required. Copyright © 2017 National Safety Council and Elsevier Ltd. All rights reserved.
Secondary environmental impacts of remedial alternatives for sediment contaminated with hydrophobic organic contaminants.

PubMed

Choi, Yongju; Thompson, Jay M; Lin, Diana; Cho, Yeo-Myoung; Ismail, Niveen S; Hsieh, Ching-Hong; Luthy, Richard G

2016-03-05

This study evaluates secondary environmental impacts of various remedial alternatives for sediment contaminated with hydrophobic organic contaminants using life cycle assessment (LCA). Three alternatives including two conventional methods, dredge-and-fill and capping, and an innovative sediment treatment technique, in-situ activated carbon (AC) amendment, are compared for secondary environmental impacts by a case study for a site at Hunters Point Shipyard, San Francisco, CA. The LCA results show that capping generates substantially smaller impacts than dredge-and-fill and in-situ amendment using coal-based virgin AC. The secondary impacts from in-situ AC amendment can be reduced effectively by using recycled or wood-based virgin AC as production of these materials causes much smaller impacts than coal-based virgin AC. The secondary environmental impacts are highly sensitive to the dredged amount and the distance to a disposal site for dredging, the capping thickness and the distance to the cap materials for capping, and the AC dose for in-situ AC amendment. Based on the analysis, this study identifies strategies to minimize secondary impacts caused by different remediation activities: optimize the dredged amount, the capping thickness, or the AC dose by extensive site assessments, obtain source materials from local sites, and use recycled or bio-based AC. Copyright © 2015 Elsevier B.V. All rights reserved.
Integrated Analysis Seismic Inversion and Rockphysics for Determining Secondary Porosity Distribution of Carbonate Reservoir at “FR” Field

NASA Astrophysics Data System (ADS)

Rosid, M. S.; Augusta, F. F.; Haidar, M. W.

2018-05-01

In general, carbonate secondary pore structure is very complex due to the significant diagenesis process. Therefore, the determination of carbonate secondary pore types is an important factor which is related to study of production. This paper mainly deals not only to figure out the secondary pores types, but also to predict the distribution of the secondary pore types of carbonate reservoir. We apply Differential Effective Medium (DEM) for analyzing pore types of carbonate rocks. The input parameter of DEM inclusion model is fraction of porosity and the output parameters are bulk moduli and shear moduli as a function of porosity, which is used as input parameter for creating Vp and Vs modelling. We also apply seismic post-stack inversion technique that is used to map the pore type distribution from 3D seismic data. Afterward, we create porosity cube which is better to use geostatistical method due to the complexity of carbonate reservoir. Thus, the results of this study might show the secondary porosity distribution of carbonate reservoir at “FR” field. In this case, North – Northwest of study area are dominated by interparticle pores and crack pores. Hence, that area has highest permeability that hydrocarbon can be more accumulated.
Heuristic Task Analysis on E-Learning Course Development: A Formative Research Study

ERIC Educational Resources Information Center

Lee, Ji-Yeon; Reigeluth, Charles M.

2009-01-01

Utilizing heuristic task analysis (HTA), a method developed for eliciting, analyzing, and representing expertise in complex cognitive tasks, a formative research study was conducted on the task of e-learning course development to further improve the HTA process. Three instructional designers from three different post-secondary institutions in the…
Job Satisfaction in Mexican Faculty: An Analysis of its Predictor Variables. ASHE Annual Meeting Paper.

ERIC Educational Resources Information Center

Galaz-Fontes, Jesus Francisco; Gil-Anton, Manuel

This study examined overall job satisfaction among college faculty in Mexico. The study used data from a 1992-93 Carnegie International Faculty Survey. Secondary multiple regression analysis identified predictor variables for several faculty subgroups. Results were interpreted by differentiating between work-related and intrinsic factors, as well…
The Effects of Macroglossia on Speech: A Case Study

ERIC Educational Resources Information Center

Mekonnen, Abebayehu Messele

2012-01-01

This article presents a case study of speech production in a 14-year-old Amharic-speaking boy. The boy had developed secondary macroglossia, related to a disturbance of growth hormones, following a history of normal speech development. Perceptual analysis combined with acoustic analysis and static palatography is used to investigate the specific…
Synthesizing the Evidence on Classroom Goal Structures in Middle and Secondary Schools: A Meta-Analysis and Narrative Review

ERIC Educational Resources Information Center

Givens Rolland, Rebecca

2012-01-01

This meta-analysis and narrative review synthesizes the literature on classroom goal structures and their relationships with student outcomes, focusing additionally on the ways in which these constructs are operationalized across research studies. Specifically, this study evaluates the relationships between students' perceptions of mastery and…
Language Learner Motivational Types: A Cluster Analysis Study

ERIC Educational Resources Information Center

Papi, Mostafa; Teimouri, Yasser

2014-01-01

The study aimed to identify different second language (L2) learner motivational types drawing on the framework of the L2 motivational self system. A total of 1,278 secondary school students learning English in Iran completed a questionnaire survey. Cluster analysis yielded five different groups based on the strength of different variables within…
Anterior maxillary segmental distraction in the treatment of severe maxillary hypoplasia secondary to cleft lip and palate

PubMed Central

Li, Hongliang; Dai, Jiewen; Si, Jiawen; Zhang, Jianfei; Wang, Minjiao; Shen, Steve Guofang; Yu, Hongbo

2015-01-01

Anterior maxillary segmental distraction (AMSD) is an effective surgical procedure in the treatment of maxillary hypoplasia secondary to cleft lip and palate. Its unique advantage of preserving velopharyngeal function makes this procedure widely applied. In this study, the application of AMSD was described and its long-term stability was explored. Eight patients with severe maxillary hypoplasia secondary to CLP were included in this study. They were treated with AMSD using rigid external distraction (RED) device. Cephalometric analysis was performed twice at three time points for evaluation: before surgery (T1), after distraction (T2), and 2 years after treatment (T3). One-way analysis of variance was used to assess the differences statistically. All the distractions completed smoothly, and maxilla was distracted efficiently. The value of SNA, NA-FH, Ptm-A, U1-PP, overjet and PP (ANS-PNS) increased significantly after the AMSD procedure (P < 0.05), with the mean overjet increased by 14.28 mm. However, comparison of cephalometric analysis between T2 and T3 showed no significant difference (P > 0.05). Changes of palatopharyngeal depth and soft palatal length were insignificant. AMSD with RED device provided an effective way to correct maxillary hypoplasia secondary to CLP, extended the palatal and arch length, avoided damage on velopharyngeal closure function and reduced the relapse rate. It is a promising and valuable technique in this potentially complicated procedure. PMID:26629107
Power and type I error results for a bias-correction approach recently shown to provide accurate odds ratios of genetic variants for the secondary phenotypes associated with primary diseases.

PubMed

Wang, Jian; Shete, Sanjay

2011-11-01

We recently proposed a bias correction approach to evaluate accurate estimation of the odds ratio (OR) of genetic variants associated with a secondary phenotype, in which the secondary phenotype is associated with the primary disease, based on the original case-control data collected for the purpose of studying the primary disease. As reported in this communication, we further investigated the type I error probabilities and powers of the proposed approach, and compared the results to those obtained from logistic regression analysis (with or without adjustment for the primary disease status). We performed a simulation study based on a frequency-matching case-control study with respect to the secondary phenotype of interest. We examined the empirical distribution of the natural logarithm of the corrected OR obtained from the bias correction approach and found it to be normally distributed under the null hypothesis. On the basis of the simulation study results, we found that the logistic regression approaches that adjust or do not adjust for the primary disease status had low power for detecting secondary phenotype associated variants and highly inflated type I error probabilities, whereas our approach was more powerful for identifying the SNP-secondary phenotype associations and had better-controlled type I error probabilities. © 2011 Wiley Periodicals, Inc.
Love, faith and hope - a secondary analysis of prostate cancer survivors and their partners.

PubMed

O'Shaughnessy, P K; Laws, T A; Esterman, A J

2015-01-01

Men's experience of recovery from treatment for prostate cancer has been extensively researched with reports highlighting the physical side effects of treatments such as erectile dysfunction and incontinence. The psychological, emotional and spiritual burden of prostate cancer on men and their partners has received far less attention. In this study, a secondary thematic analysis of data from a series of separate but related qualitative studies with prostate cancer survivors and their partners was conducted to further explore themes of love, hope and faith within this population. This study identified unresolved needs related to the emotive concepts of love, hope and faith. The findings from this study can be employed to refine psychosocial assessments of men with prostate cancer, and provide a more comprehensive understanding of prostate cancer survivors supportive care needs.
Incidence of Symptomatic Vertebral Fractures in Patients After Percutaneous Vertebroplasty

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hierholzer, Johannes, E-mail: jhierholzer@klinikumevb.de; Fuchs, Heiko; Westphalen, Kerstin

The aim of this study was to evaluate the incidence of secondary symptomatic vertebral compression fractures (VCFs) in patients previously treated by percutaneous vertebroplasty (VTP). Three hundred sixteen patients with 486 treated VCFs were included in the study according to the inclusion criteria. Patients were kept in regular follow-up using a standardized questionairre before, 1 day, 7 days, 6 months, and 1 year after, and, further on, on a yearly basis after VTP. The incidence of secondary symptomatic VCF was calculated, and anatomical distribution with respect to previous fractures characterized. Mean follow-up was 8 months (6-56 months) after VTP. Fifty-twomore » of 316 (16.4 %) patients (45 female, 7 male) returned for treatment of 69 secondary VCFs adjacent to (35/69; 51%) or distant from (34/69; 49%) previously treated levels. Adjacent secondary VCF occurred significantly more often compared to distant secondary VCF. Of the total 69 secondary VCFs, 35 of 69 occurred below and 27 of 69 above pretreated VCFs. Of the 65 sandwich levels generated, in 7 of 65 (11%) secondary VCFs were observed. Secondary VCF below pretreated VCF occurred significantly earlier in time compared to VCF above and compared to sandwich body fractures. No major complication occurred during initial or follow-up intervention. We conclude that secondary VCFs do occur in individuals after VTP but the rate found in our study remains below the level expected from epidemiologic studies. Adjacent fractures occur more often and follow the cluster distribution of VCF as expected from the natural history of the underlying osteoporosis. No increased rate of secondary VCF after VTP was observed in this retrospective analysis. In accordance with the pertinent literature, short-term and also midterm clinical results are encouraging and provide further support for the usefulness and the low complication rate of this procedure as an adjunct to the spectrum of pain management in patients with severe midline back pain due to osteoporotic spine fractures.« less
Analysis of Air Force Secondary Power Logistics Solution Contract

DTIC Science & Technology

2010-05-21

IL 62225 SUBJECT: Audit. Analysis of Air Force Secondary Power Logistics Solution Contract, 748th Supply Chain Management Group, Hill Air Fon:r... Power Logis.tics Solution Contnict. 748111 Supply Ch.,in Management Group. !-lill Air FOfC! BII.SI!, UT (Project 02009· DOOOCH·0213.000) I. AUlIctlcd...00-00-2010 to 00-00-2010 4. TITLE AND SUBTITLE Analysis of Air Force Secondary Power Logistics Solution Contract 5a. CONTRACT NUMBER 5b. GRANT
Advantages of Integrative Data Analysis for Developmental Research

ERIC Educational Resources Information Center

Bainter, Sierra A.; Curran, Patrick J.

2015-01-01

Amid recent progress in cognitive development research, high-quality data resources are accumulating, and data sharing and secondary data analysis are becoming increasingly valuable tools. Integrative data analysis (IDA) is an exciting analytical framework that can enhance secondary data analysis in powerful ways. IDA pools item-level data across…
A generalized analysis of hydrophobic and loop clusters within globular protein sequences

PubMed Central

Eudes, Richard; Le Tuan, Khanh; Delettré, Jean; Mornon, Jean-Paul; Callebaut, Isabelle

2007-01-01

Background Hydrophobic Cluster Analysis (HCA) is an efficient way to compare highly divergent sequences through the implicit secondary structure information directly derived from hydrophobic clusters. However, its efficiency and application are currently limited by the need of user expertise. In order to help the analysis of HCA plots, we report here the structural preferences of hydrophobic cluster species, which are frequently encountered in globular domains of proteins. These species are characterized only by their hydrophobic/non-hydrophobic dichotomy. This analysis has been extended to loop-forming clusters, using an appropriate loop alphabet. Results The structural behavior of hydrophobic cluster species, which are typical of protein globular domains, was investigated within banks of experimental structures, considered at different levels of sequence redundancy. The 294 more frequent hydrophobic cluster species were analyzed with regard to their association with the different secondary structures (frequencies of association with secondary structures and secondary structure propensities). Hydrophobic cluster species are predominantly associated with regular secondary structures, and a large part (60 %) reveals preferences for α-helices or β-strands. Moreover, the analysis of the hydrophobic cluster amino acid composition generally allows for finer prediction of the regular secondary structure associated with the considered cluster within a cluster species. We also investigated the behavior of loop forming clusters, using a "PGDNS" alphabet. These loop clusters do not overlap with hydrophobic clusters and are highly associated with coils. Finally, the structural information contained in the hydrophobic structural words, as deduced from experimental structures, was compared to the PSI-PRED predictions, revealing that β-strands and especially α-helices are generally over-predicted within the limits of typical β and α hydrophobic clusters. Conclusion The dictionary of hydrophobic clusters described here can help the HCA user to interpret and compare the HCA plots of globular protein sequences, as well as provides an original fundamental insight into the structural bricks of protein folds. Moreover, the novel loop cluster analysis brings additional information for secondary structure prediction on the whole sequence through a generalized cluster analysis (GCA), and not only on regular secondary structures. Such information lays the foundations for developing a new and original tool for secondary structure prediction. PMID:17210072
John Dewey's Influence on the Origins of the Social Studies: An Analysis of the Historiography and New Interpretation

ERIC Educational Resources Information Center

Fallace, Thomas

2009-01-01

This article offers a critical review of the historical literature on the National Education Association's (NEA) 1916 Committee on Social Studies (CSS) report, the document generally believed to have launched the social studies movement in American secondary schools. The review begins with a critical analysis of the four most pervasive…

Orientation and Mobility, Reading, and Math: Analysis of Data for Children with Visual Impairments from the Special Education Elementary Longitudinal Study

ERIC Educational Resources Information Center

Anderson, Dawn L.

2010-01-01

This dissertation research comprised three studies focused on vision-specific skills, and their association with functional and academic outcomes for school-age students with visual impairment. The studies involved analysis of secondary data for 850 students with visual impairment who participated in the Special Education Elementary Longitudinal…
Hungarys Alternative to Counter Hybrid Warfare - Small States Weaponized Citizenry

DTIC Science & Technology

2017-06-09

case , the thesis applies qualitative intrinsic case study methodology to answer the primary and secondary research questions. Documents in the...literature review provide two 237 Robert E. Stake, The Art of Case Study Research (Thousand Oaks, CA: SAGE...solution for Hungary. The following paragraphs present criteria for the analysis. Criteria The case study analysis concentrates on the first two
Transcriptome Analysis of Aspergillus flavus Reveals veA-Dependent Regulation of Secondary Metabolite Gene Clusters, Including the Novel Aflavarin Cluster

PubMed Central

Cary, J. W.; Han, Z.; Yin, Y.; Lohmar, J. M.; Shantappa, S.; Harris-Coward, P. Y.; Mack, B.; Ehrlich, K. C.; Wei, Q.; Arroyo-Manzanares, N.; Uka, V.; Vanhaecke, L.; Bhatnagar, D.; Yu, J.; Nierman, W. C.; Johns, M. A.; Sorensen, D.; Shen, H.; De Saeger, S.; Diana Di Mavungu, J.

2015-01-01

The global regulatory veA gene governs development and secondary metabolism in numerous fungal species, including Aspergillus flavus. This is especially relevant since A. flavus infects crops of agricultural importance worldwide, contaminating them with potent mycotoxins. The most well-known are aflatoxins, which are cytotoxic and carcinogenic polyketide compounds. The production of aflatoxins and the expression of genes implicated in the production of these mycotoxins are veA dependent. The genes responsible for the synthesis of aflatoxins are clustered, a signature common for genes involved in fungal secondary metabolism. Studies of the A. flavus genome revealed many gene clusters possibly connected to the synthesis of secondary metabolites. Many of these metabolites are still unknown, or the association between a known metabolite and a particular gene cluster has not yet been established. In the present transcriptome study, we show that veA is necessary for the expression of a large number of genes. Twenty-eight out of the predicted 56 secondary metabolite gene clusters include at least one gene that is differentially expressed depending on presence or absence of veA. One of the clusters under the influence of veA is cluster 39. The absence of veA results in a downregulation of the five genes found within this cluster. Interestingly, our results indicate that the cluster is expressed mainly in sclerotia. Chemical analysis of sclerotial extracts revealed that cluster 39 is responsible for the production of aflavarin. PMID:26209694
FTIR study of secondary structure of bovine serum albumin and ovalbumin

NASA Astrophysics Data System (ADS)

Abrosimova, K. V.; Shulenina, O. V.; Paston, S. V.

2016-11-01

Proteins structure is the critical factor for their functioning. Fourier transform infrared spectroscopy provides a possibility to obtain information about secondary structure of proteins in different states and also in a whole biological samples. Infrared spectra of egg white from the untreated and hard-boiled hen's egg, and also of chicken ovalbumin and bovine serum albumin in lyophilic form and in aqueous solution were studied. Lyophilization of investigated globular proteins is accompanied by the decrease of a-helix structures and the increase in amount of intermolecular β-sheets. Analysis of infrared spectrum of egg white allowed to make an estimation of OVA secondary structure and to observe α-to-β structural transformation as a result of the heat denaturation.
Analysis of uncultured extremophilic snow algae by non-invasive single cell Raman spectroscopy

NASA Astrophysics Data System (ADS)

Beer, Thomas; Tanaka, Zuki; Netzter, Nathan; Rothschild, Lynn J.; Chen, Bin

2011-10-01

The study of life in extreme environments is a critical component of Astrobiology. But many of the so-called "extremophiles" are not readily cultivatable and therefore difficult to study under laboratory conditions. An example of such an extremophile is the snow alga Chlamydomonas cd. nivalis which expresses still unstudied secondary metabolites within its life cycle. In this paper, we present the first time the non-invasive single cell Raman spectroscopy of the life cycle dependent metabolite composition of C. nivalis. These secondary metabolites are likely related to the adaptation of C. nivalis to various stress factors. Normalized carotenoid Raman spectra intensities reveal characteristic ratio differences that allow identification of life cycle stages and putative secondary metabolites.
Head Start Program and Cost Data Analysis: Final Report - Volume II.

ERIC Educational Resources Information Center

Cordes, Joseph; And Others

This second volume of the Head Start Program and Cost Data Analysis Final Report analyzes data from sources other than the Head Start Program Information Report (PIR). The report is divided into three sections: Distributional Impact of Head Start Financing, Pilot Study of Program Compliance, and Recommendations for Secondary Data Analysis. The…
Shaping the Conversation: A Secondary Analysis of Reproductive Decision-Making Among Black Mothers with HIV.

PubMed

Amutah, Ndidiamaka N; Gifuni, Jacqueline; Wesley, Yvonne

2016-01-01

The purpose of this qualitative secondary data analysis is to examine the major influencers on mothers with HIV in their childbearing decisions, as well as how those influencers shape conversations with clinicians and health-care providers regarding HIV treatment and prevention. The original study gained insight into the reproductive decision-making of mothers with HIV. By analyzing a subsample of 15 interviews from an original cohort of 25 participants in the earlier study, three major themes were identified as follows: (1) family members, not health-care providers, influence reproductive decisions; (2) negative attitudes toward subsequent pregnancies are mainly due to HIV transmission; and (3) birth control decisions were predominately supported by family members, while health-care providers were not consulted.
Enhanced performance of a submerged membrane bioreactor with powdered activated carbon addition for municipal secondary effluent treatment.

PubMed

Lin, Hongjun; Wang, Fangyuan; Ding, Linxian; Hong, Huachang; Chen, Jianrong; Lu, Xiaofeng

2011-09-15

The aim of this study was to investigate the feasibility of PAC-MBR process treating municipal secondary effluent. Two laboratory-scale submerged MBRs (SMBR) with and without PAC addition were continuously operated in parallel for secondary effluent treatment. Approximately 63%TOC, 95% NH(4)(+)-N and 98% turbidity in secondary effluent were removed by the PAC-MBR process. Most organics in the secondary effluent were found to be low molecular weight (MW) substances, which could be retained in the reactor and then removed to some extent by using PAC-MBR process. Parallel experiments showed that the addition of PAC significantly increased organic removal and responsible for the largest fraction of organic removal. Membrane fouling analysis showed the enhanced membrane performance in terms of sustainable operational time and filtration resistances by PAC addition. Based on these results, the PAC-MBR process was considered as an attractive option for the reduction of pollutants in secondary effluent. Copyright © 2011 Elsevier B.V. All rights reserved.
Sick and still at school: an empirical study of sickness presence among students in Norwegian secondary school

PubMed Central

Johansen, Vegard

2015-01-01

Objectives This paper investigates sickness presence (SP) among students. The research questions asked are: What is the distribution of SP among students in Norwegian secondary school? What characterises students with high SP in Norwegian secondary schools? Design A cross-sectional survey conducted in 10th grade in lower secondary school (LSS) and level 2 in upper secondary school (USS). The study was conducted using multivariate binomial logistic regression analysis. Participants The survey was administered to 66 schools, and 2 or 3 classes participated at each school. The response rate was 84% in LSS (n=1880) and 81% in USS (n=1160). Primary and secondary outcome measures The paper provides information about the distribution of SP in secondary schools. The paper also examines which factors influence high SP. Results 75% of students in LSS and 80% of students in USS reported SP in the previous school year. 24% of students in LSS and 33% of students in USS reported high SP (4 episodes or more). Students with high absence from school were more likely to report high SP (ORLSS=1.7, ORUSS=2.0) than those with low/no absence. Girls were more likely to report high SP (ORLSS=1.5, ORUSS=1.5) than boys. In LSS, students with high school motivation reported high SP more often than students with low/medium motivation. In USS, students in vocational studies programmes reported high SP more often than students in general/academic studies programmes. Conclusions Some SP during a school year may be more common than no SP. Gender, absence, motivation and education programme were important factors for high SP in secondary school. PMID:26373401
"Big Fans," "Experts," and Those "In Need of a Challenge": Teacher Attitudes to "Manga and Anime Kids" in the Secondary English Classroom

ERIC Educational Resources Information Center

Cheung, Kelly; O'Sullivan, Kerry-Ann

2017-01-01

Manga and anime may no longer be the "new kids" in wider media culture but they are relatively new texts for study in the secondary English classroom. Manga and anime support teachers in their work towards inclusive classroom practices and build multimodal literacies but the cartoony face of the medium belies a depth of analysis required…
Out-of-School Experience Categories Influencing Interest in Biology of Secondary School Students by Gender: Exploration on an Abu Dhabi Sample

ERIC Educational Resources Information Center

Badri, Masood; Yang, Guang; Al Mazroui, Karima; Mohaidat, Jihad; Al Rashedi, Asma; Al Housani, Najwa

2017-01-01

This study employed the international Relevance of Science Education questionnaire to survey the interest in biology and the out-of-school experiences of Abu Dhabi secondary school students (median age 17, mean age 17.53 and mode age of 16) in the third semester of 2014. It included 3100 participants. An exploratory factor analysis was used to…
Curriculum Styles and Strategies. A Review of Styles and Strategies of Curriculum Innovation in Secondary (and Higher) Education and Their Relevance and Applicability to Further Education. A Project Report.

ERIC Educational Resources Information Center

Heathcote, Gay; And Others

Curriculum development at the secondary and higher education levels was examined to identify issues and features of interest to curriculum workers within the further education sector. The main study of the curriculum projects was concentrated on an indepth analysis of four key variables: (1) aims, goals, objectives, and associated curriculum…
An Analysis of the Understanding of Geological Time by Students at Secondary and Post-Secondary Level. Research Report

ERIC Educational Resources Information Center

Hidalgo, Antonio J.; Otero, Jose

2004-01-01

This paper addresses the concept of geological time as used by students who face tasks that demand three types of skills: to locate events in time, to order them according to time calendar, and to manage time intervals. The empirical study consisted of asking high school students as well as technical school students to carry out tasks that…
Transposed brachial-basilic arteriovenous fistulas versus prosthetic upper limb grafts: a meta-analysis.

PubMed

Lazarides, M K; Georgiadis, G S; Papasideris, C P; Trellopoulos, G; Tzilalis, V D

2008-11-01

Controversy exists regarding the best type of arteriovenous (AV) fistula to be formed in secondary and tertiary access procedures when primary fistulas have failed. This meta-analysis aimed to compare transposed brachial-basilic AV fistulas (BBAVFs) with upper limb AV prosthetic grafts. A literature search of the MEDLINE and SCOPUS databases was performed to identify comparative studies reporting outcomes for both BBAVFs with upper limb AV prosthetic grafts. Meta-analysis techniques were applied to identify differences in outcomes between the two groups regarding primary and secondary 1-year failure rates. Eleven relevant studies, involving 1509 patients, met the inclusion criteria and were incorporated in the final analysis; however, only one was randomised controlled trial. The pooled odds' ratio (OR) estimate for the primary and secondary failure rates at 1 year was 0.67 (CI 0.41-1.09) and 0.88 (CI 0.69-1.12), respectively, showing no difference in the outcome between the two groups. The re-intervention rate was higher for prosthetic grafts (0.54 per BBAVF versus 1.32 per graft). In a small subgroup of two studies comparing BBAVFs with forearm grafts the pooled estimate for 1-year primary failure rate was in favour of the BBAVF group (OR 0.3, CI 0.15-0.58, p=0.0004) suggesting that forearm grafts were inferior having a 3-fold risk of failure at 1 year. This analysis supports the use of BBAVF early in difficult access cases prior to the use of prosthetic grafts. However, the latter conclusion is debatable due to heterogeneity, small size and non-randomised design of the included studies.
Issues encountered in a qualitative secondary analysis of help-seeking in the prodrome to psychosis.

PubMed

Gladstone, Brenda M; Volpe, Tiziana; Boydell, Katherine M

2007-10-01

Primary data are rarely used explicitly as a source of data outside of the original research purpose for which they were collected. As a result, qualitative secondary analysis (QSA) has been described as an "invisible enterprise" for which there is a "notable silence" amongst the qualitative research community. In this paper, we report on the methodological implications of conducting a secondary analysis of qualitative data focusing on parents' narratives of help-seeking activities in the prodrome to psychosis. We review the literature on QSA, highlighting the main characteristics of the approach, and discuss issues and challenges encountered in conducting a secondary analysis. We conclude with some thoughts on the implications for conducting a QSA in children's mental health services and research.
Effect of educational preparation on the accuracy of linear growth measurement in pediatric primary care practices: results of a multicenter nursing study.

PubMed

Hench, Karen D; Shults, Justine; Benyi, Terri; Clow, Cheryl; Delaune, Joanne; Gilluly, Kathy; Johnson, Lydia; Johnson, Maryann; Rossiter, Katherine; McKnight-Menci, Heather; Shorkey, Doris; Waite, Fran; Weber, Colleen; Lipman, Terri H

2005-04-01

Consistently monitoring a child's linear growth is one of the least invasive, most sensitive tools to identify normal physiologic functioning and a healthy lifestyle. However, studies, mostly from the United Kingdom, indicate that children are frequently measured incorrectly. Inaccurate linear measurements may result in some children having undetected growth disorders whereas others with normal growth being referred for costly, unwarranted specialty evaluations. This study presents the secondary analysis of a primary study that used a randomized control study design to demonstrate that a didactic educational intervention resulted in significantly more children being measured accurately within eight pediatric practices. The secondary analysis explored the influence of the measurer's educational level on the outcome of accurate linear measurement. Results indicated that RNs were twice as likely as non-RNs to measure children accurately.
Blood pressure variability in children with primary vs secondary hypertension.

PubMed

Leisman, Daniel; Meyers, Melissa; Schnall, Jeremy; Chorny, Nataliya; Frank, Rachel; Infante, Lulette; Sethna, Christine B

2014-06-01

Increased blood pressure variability (BPV) is correlated with adverse cardiovascular (CV) events in adults. However, there has been limited research on its effect in the pediatric population. Additionally, BPV differences between primary and secondary hypertension (HTN) are not known. Children with primary and secondary HTN underwent 24-hour ambulatory blood pressure monitoring and echocardiography studies. BPV measures of standard deviation (SD), average real variability (ARV), and range were calculated for the 24-hour, daytime, and nighttime periods. Seventy-four patients (median age, 13.5 years; 74% boys) were examined, 40 of whom had primary HTN. Body mass index z score and age were independent predictors of systolic ARV (R(2) =0.14) and SD (R(2) =0.39). There were no statistically significant differences in overall or wake period BPV measures between secondary or primary HTN groups, but sleep period diastolic SD was significantly greater in the secondary HTN group (9.26±3.8 vs 7.1±2.8, P=.039). On multiple regression analysis, secondary HTN was associated with increased sleep period diastolic SD (P=.025). No metrics of BPV in the overall, wake, and sleep periods were found to be significantly associated with left ventricular hypertrophy (LVH). The results of this study do not show a strong relationship between overall or wake BPV with primary vs secondary HTN, but the association of secondary HTN with sleep period diastolic BPV deserves further exploration. Contrary to expectation, the findings of this study failed to indicate a relationship between BPV and LVH for all patients as well for primary hypertensive and secondary hypertensive patients. ©2014 Wiley Periodicals, Inc.
Secondary dystonia in a botulinum toxin clinic: clinical characteristics, neuroanatomical substrate and comparison with idiopathic dystonia.

PubMed

Strader, Scott; Rodnitzky, Robert L; Gonzalez-Alegre, Pedro

2011-12-01

The analysis of patients with secondary dystonia has been valuable to explore the anatomical, pharmacological and physiological bases of this disorder. The goal of this study is to compare the clinical characteristics of patients with primary and secondary dystonia and analyze the neuroanatomical bases of a subgroup of patients with lesion-induced dystonia. We identified patients evaluated in our Botulinum Toxin Clinic from 1/2000 to 7/2009 with an ICD code for "dystonia". Medical records of all subjects were reviewed, recording demographic, clinical, therapeutic and neuroimaging data. A total of 230 patients were included in the study. Idiopathic/primary dystonia was diagnosed in 162 and secondary dystonia in 58, while in 10 the etiology was uncertain. We found a female predominance (2.4:1 and 1.9:1 for primary and secondary dystonia, respectively). The cervical region was most commonly affected in primary dystonia and the limbs in secondary cases. The age at presentation was higher in primary (54.4 ± 14.1) than secondary (49 ± 17.9) dystonia. Among patients with secondary dystonia, a focal lesion was the presumed etiology in 32, with localizing diagnostic studies available in 16. The most common lesions were strokes involving the corticospinal pathway. All of those patients exhibited limb dystonia, except one with cervical dystonia following a thalamic infarct. In conclusion, primary and secondary dystonias are more prevalent in women, suggesting a sex-related predisposition to the development of this movement disorder. Lesion-induced dystonia most frequently involves the limbs and is caused by lesions in the cerebral cortex and subcortical white matter. Copyright © 2011 Elsevier Ltd. All rights reserved.
LC-MS/MS profiling-based secondary metabolite screening of Myxococcus xanthus.

PubMed

Kim, Jiyoung; Choi, Jung Nam; Kim, Pil; Sok, Dai-Eun; Nam, Soo-Wan; Lee, Choong Hwan

2009-01-01

Myxobacteria, Gram-negative soil bacteria, are a well-known producer of bioactive secondary metabolites. Therefore, this study presents a methodological approach for the high-throughput screening of secondary metabolites from 4 wild-type Myxococcus xanthus strains. First, electrospray ionization mass spectrometry (ESI-MS) was performed using extracellular crude extracts. As a result, 22 metabolite peaks were detected, and the metabolite profiling was then conducted using the m/z value, retention time, and MS/MS fragmentation pattern analyses. Among the peaks, one unknown compound peak was identified as analogous to the myxalamid A, B, and C series. An analysis of the tandem mass spectrometric fragmentation patterns and HR-MS identified myxalamid K as a new compound derived from M. xanthus. In conclusion, LC-MS/MS-based chemical screening of diverse secondary metabolites would appear to be an effective approach for discovering unknown microbial secondary metabolites.
A Cost-Effectiveness Analysis Model for Evaluating and Planning Secondary Vocational Programs

ERIC Educational Resources Information Center

Kim, Jin Eun

1977-01-01

This paper conceptualizes a cost-effectiveness analysis and describes a cost-effectiveness analysis model for secondary vocational programs. It generates three kinds of cost-effectiveness measures: program effectiveness, cost efficiency, and cost-effectiveness and/or performance ratio. (Author)

An analysis of the suitability of a low-cost eye tracker for assessing the cognitive load of drivers.

PubMed

Čegovnik, Tomaž; Stojmenova, Kristina; Jakus, Grega; Sodnik, Jaka

2018-04-01

This paper presents a driving simulator study in which we investigated whether the Eye Tribe eye tracker (ET) is capable of assessing changes in the cognitive load of drivers through oculography and pupillometry. In the study, participants were asked to drive a simulated vehicle and simultaneously perform a set of secondary tasks with different cognitive complexity levels. We measured changes in eye properties, such as the pupil size, blink rate and fixation time. We also performed a measurement with a Detection Response Task (DRT) to validate the results and to prove a steady increase of cognitive load with increasing secondary task difficulty. The results showed that the ET precisely recognizes an increasing pupil diameter with increasing secondary task difficulty. In addition, the ET shows increasing blink rates, decreasing fixation time and narrowing of the attention field with increasing secondary task difficulty. The results were validated with the DRT method and the secondary task performance. We conclude that the Eye Tribe ET is a suitable device for assessing a driver's cognitive load. Copyright © 2017 Elsevier Ltd. All rights reserved.
Information in general medical practices: the information processing model.

PubMed

Crowe, Sarah; Tully, Mary P; Cantrill, Judith A

2010-04-01

The need for effective communication and handling of secondary care information in general practices is paramount. To explore practice processes on receiving secondary care correspondence in a way that integrates the information needs and perceptions of practice staff both clinical and administrative. Qualitative study using semi-structured interviews with a wide range of practice staff (n = 36) in nine practices in the Northwest of England. Analysis was based on the framework approach using N-Vivo software and involved transcription, familiarization, coding, charting, mapping and interpretation. The 'information processing model' was developed to describe the six stages involved in practice processing of secondary care information. These included the amendment or updating of practice records whilst simultaneously or separately actioning secondary care recommendations, using either a 'one-step' or 'two-step' approach, respectively. Many factors were found to influence each stage and impact on the continuum of patient care. The primary purpose of processing secondary care information is to support patient care; this study raises the profile of information flow and usage within practices as an issue requiring further consideration.
Metabolic fingerprinting of Angelica sinensis during growth using UPLC-TOFMS and chemometrics data analysis

PubMed Central

2013-01-01

Background The radix of Angelica sinensis is widely used as a medicinal herbal and metabolomics research of this plant during growth is necessary. Results Principal component analysis of the UPLC-QTOFMS data showed that these 27 samples could be separated into 4 different groups. The chemical markers accounting for these separations were identified from the PCA loadings plot. These markers were further verified by accurate mass tandem mass and retention times of available reference standards. The study has shown that accumulation of secondary metabolites of Angelica sinensis is closely related to the growth periods. Conclusions The UPLC-QTOFMS based metabolomics approach has great potential for analysis of the alterations of secondary metabolites of Angelica sinensis during growth. PMID:23453085
Residue-residue contacts: application to analysis of secondary structure interactions.

PubMed

Potapov, Vladimir; Edelman, Marvin; Sobolev, Vladimir

2013-01-01

Protein structures and their complexes are formed and stabilized by interactions, both inside and outside of the protein. Analysis of such interactions helps in understanding different levels of structures (secondary, super-secondary, and oligomeric states). It can also assist molecular biologists in understanding structural consequences of modifying proteins and/or ligands. In this chapter, our definition of atom-atom and residue-residue contacts is described and applied to analysis of protein-protein interactions in dimeric β-sandwich proteins.
Systematic review with meta-analysis: rifaximin for the prophylaxis of spontaneous bacterial peritonitis.

PubMed

Goel, A; Rahim, U; Nguyen, L H; Stave, C; Nguyen, M H

2017-12-01

The primary and secondary prevention of spontaneous bacterial peritonitis (SBP) is recommended in high-risk patients with cirrhosis. Several studies evaluating the efficacy of rifaximin for SBP prophylaxis have yielded conflicting results. Rifaximin has the potential advantage of preventing bacterial overgrowth and translocation without the systemic side effects of broad-spectrum antibiotics. To evaluate the efficacy of rifaximin in the primary and secondary prevention of SBP. A literature search using five databases was performed to identify studies on the association between rifaximin and SBP. We performed two meta-analyses: (1) rifaximin compared to systemic antibiotics and (2) rifaximin compared to no antibiotics. Random-effect modelling was conducted to determine overall pooled estimates and 95% confidence intervals (CIs). Five studies with 555 patients (295 rifaximin, 260 systemic antibiotics) compared rifaximin with systemic antibiotics. The pooled odds ratio (OR) for SBP was 0.45 (95% CI 0.16-1.27; P = .13) in patients receiving rifaximin and strengthened on sensitivity analysis (OR 0.38, 95% CI 0.19-0.76, P = .01). In the analysis comparing rifaximin with no antibiotics, there were five studies with 784 patients (186 rifaximin, 598 no antibiotics). The OR for SBP was 0.34 (95% CI 0.11-0.99; P < .05) in patients receiving rifaximin. In subgroup analysis, rifaximin reduced the risk of SBP by 47% compared to no antibiotics for primary prophylaxis and by 74% compared to systemic antibiotics for secondary prophylaxis. Rifaximin may be effective in preventing SBP in patients with cirrhosis and ascites compared to systemically absorbed antibiotics and compared to placebo. © 2017 John Wiley & Sons Ltd.
Technical Communications in Aeronautics: Results of an Exploratory Study. An Analysis of Managers' and Nonmanagers' Responses. NASA Technical Memorandum 101625.

ERIC Educational Resources Information Center

Pinelli, Thomas E.; And Others

Data collected from an exploratory study concerned with the technical communications practices of aerospace engineers and scientists were analyzed to test the primary assumption that aerospace managers and nonmanagers have different technical communications practices. Five secondary assumptions were established for the analysis: (1) that the…
The Social-Emotional Well-Being of Children of Mothers with Intellectual Impairment: A Population-Based Analysis

ERIC Educational Resources Information Center

Hindmarsh, Gabrielle; Llewellyn, Gwynnyth; Emerson, Eric

2017-01-01

Background: Children of parents with intellectual impairment are thought to be at risk for poor social-emotional well-being. This study investigated the relationship between maternal intellectual impairment and poor child social-emotional well-being. Method: Secondary analysis of data from waves 2-4 of the Millennium Cohort Study (UK).…
The Tacit-Explicit Dimension of the Learning of Mathematics: An Investigation Report

ERIC Educational Resources Information Center

Frade, Cristina; Borges, Oto

2006-01-01

This paper reports on study that investigated the tacit-explicit dimension of the learning of mathematics. The study was carried out in a secondary school and consisted of an episode analysis related to a class discussion about the difference between plane figures and spatial figures. The data analysis was based on integration between some aspects…
Comparative genomics reveals phylogenetic distribution patterns of secondary metabolites in Amycolatopsis species.

PubMed

Adamek, Martina; Alanjary, Mohammad; Sales-Ortells, Helena; Goodfellow, Michael; Bull, Alan T; Winkler, Anika; Wibberg, Daniel; Kalinowski, Jörn; Ziemert, Nadine

2018-06-01

Genome mining tools have enabled us to predict biosynthetic gene clusters that might encode compounds with valuable functions for industrial and medical applications. With the continuously increasing number of genomes sequenced, we are confronted with an overwhelming number of predicted clusters. In order to guide the effective prioritization of biosynthetic gene clusters towards finding the most promising compounds, knowledge about diversity, phylogenetic relationships and distribution patterns of biosynthetic gene clusters is necessary. Here, we provide a comprehensive analysis of the model actinobacterial genus Amycolatopsis and its potential for the production of secondary metabolites. A phylogenetic characterization, together with a pan-genome analysis showed that within this highly diverse genus, four major lineages could be distinguished which differed in their potential to produce secondary metabolites. Furthermore, we were able to distinguish gene cluster families whose distribution correlated with phylogeny, indicating that vertical gene transfer plays a major role in the evolution of secondary metabolite gene clusters. Still, the vast majority of the diverse biosynthetic gene clusters were derived from clusters unique to the genus, and also unique in comparison to a database of known compounds. Our study on the locations of biosynthetic gene clusters in the genomes of Amycolatopsis' strains showed that clusters acquired by horizontal gene transfer tend to be incorporated into non-conserved regions of the genome thereby allowing us to distinguish core and hypervariable regions in Amycolatopsis genomes. Using a comparative genomics approach, it was possible to determine the potential of the genus Amycolatopsis to produce a huge diversity of secondary metabolites. Furthermore, the analysis demonstrates that horizontal and vertical gene transfer play an important role in the acquisition and maintenance of valuable secondary metabolites. Our results cast light on the interconnections between secondary metabolite gene clusters and provide a way to prioritize biosynthetic pathways in the search and discovery of novel compounds.
NanoSIMS for biological applications: Current practices and analyses

DOE PAGES

Nunez, Jamie R.; Renslow, Ryan S.; Cliff, III, John B.; ...

2017-09-27

Secondary ion mass spectrometry (SIMS) has become an increasingly utilized tool in biologically-relevant studies. Of these, high lateral resolution methodologies using the NanoSIMS 50/50L have been especially powerful within many biological fields over the past decade. Here, we provide a review of this technology, sample preparation and analysis considerations, examples of recent biological studies, data analysis, and current outlooks. Specifically, we offer an overview of SIMS and development of the NanoSIMS. We describe the major experimental factors that should be considered prior to NanoSIMS analysis and then provide information on best practices for data analysis and image generation, which includesmore » an in-depth discussion of appropriate colormaps. Additionally, we provide an open-source method for data representation that allows simultaneous visualization of secondary electron and ion information within a single image. Lastly, we present a perspective on the future of this technology and where we think it will have the greatest impact in near future.« less
NanoSIMS for biological applications: Current practices and analyses

DOE Office of Scientific and Technical Information (OSTI.GOV)

Nunez, Jamie R.; Renslow, Ryan S.; Cliff, III, John B.

Secondary ion mass spectrometry (SIMS) has become an increasingly utilized tool in biologically-relevant studies. Of these, high lateral resolution methodologies using the NanoSIMS 50/50L have been especially powerful within many biological fields over the past decade. Here, we provide a review of this technology, sample preparation and analysis considerations, examples of recent biological studies, data analysis, and current outlooks. Specifically, we offer an overview of SIMS and development of the NanoSIMS. We describe the major experimental factors that should be considered prior to NanoSIMS analysis and then provide information on best practices for data analysis and image generation, which includesmore » an in-depth discussion of appropriate colormaps. Additionally, we provide an open-source method for data representation that allows simultaneous visualization of secondary electron and ion information within a single image. Lastly, we present a perspective on the future of this technology and where we think it will have the greatest impact in near future.« less
What English Language Learners Have to Say about NCLB Testing

ERIC Educational Resources Information Center

Yee, Mary

2015-01-01

This study constitutes the secondary analysis of data collected as part of classroom instruction in a prior practitioner inquiry study. Consequently, IRB approval, parental consent, and participant assent for the present study were obtained after the conclusion of the original study.
The diversity of the secondary Salmonella typhimurium-specific B cell repertoire.

PubMed

Metcalf, E S; Gaffney, M; Duran, L W

1987-05-15

This report describes the first analysis of the expressed B cell repertoire specific for a bacterium. In this study, responses to an acetone-killed and dried preparation of Salmonella typhimurium strain TML (AKD-TML) are described. The results show that AKD-TML can stimulate splenic B cells from primed CBA/Ca mice over a wide dose range. The average frequency of secondary TML-specific B cells is 16.4 per 10(5) splenic B cells. This frequency is similar to that observed for another complex, natural antigen, the hemagglutinin of influenza virus. The majority of all secondary TML-specific B cells (greater than 70%) secrete immunoglobulin M, but most of these clones also secrete other isotypes of which immunoglobulins G2 and A are the most prevalent. Analysis of the specificity of secondary TML-specific B cells showed that the vast majority of these B cells were specific for the lipopolysaccharide (LPS) molecule. Moreover, fine specificity analysis demonstrated that approximately two-thirds of these anti-LPS-specific B cell clones are directed against the core polysaccharides or lipid A regions of the LPS molecule, while only about one-third are directed toward the O antigen region. Since anti-S. typhimurium serum antibodies are directed primarily against the O antigens, these studies suggest that the serum levels of antibodies to a given epitope on a bacterial antigen may not be a true reflection of the expressed B cell repertoire when analyzed at the single B cell level. These studies also suggest that the role of antibodies to lipid A molecules in the development of protective immunity to S. typhimurium be reevaluated.
Secondary prevention lifestyle interventions initiated within 90 days after TIA or 'minor' stroke: a systematic review and meta-analysis of rehabilitation programmes.

PubMed

Heron, Neil; Kee, Frank; Cardwell, Christopher; Tully, Mark A; Donnelly, Michael; Cupples, Margaret E

2017-01-01

Strokes are often preceded by a transient ischaemic attack (TIA) or 'minor' stroke. The immediate period after a TIA/minor stroke is a crucial time to initiate secondary prevention. However, the optimal approach to prevention, including non-pharmacological measures, after TIA is not clear. To systematically review evidence about the effectiveness of delivering secondary prevention, with lifestyle interventions, in comprehensive rehabilitation programmes, initiated within 90 days of a TIA/minor stroke. Also, to categorise the specific behaviour change techniques used. The review identified randomised controlled trials by searching the Cochrane Library, Ovid MEDLINE, Ovid EMBASE, Web of Science, EBSCO CINAHL and Ovid PsycINFO. Two review authors independently screened titles and abstracts for eligibility (programmes initiated within 90 days of event; outcomes reported for TIA/minor stroke) and extracted relevant data from appraised studies; a meta-analysis was used to synthesise the results. A total of 31 potentially eligible papers were identified and four studies, comprising 774 patients post-TIA or minor stroke, met the inclusion criteria; two had poor methodological quality. Individual studies reported increased aerobic capacity but meta-analysis found no significant change in resting and peak systolic blood pressure, resting heart rate, aerobic capacity, falls, or mortality. The main behaviour change techniques were goal setting and instructions about how to perform given behaviours. There is limited evidence of the effectiveness of early post-TIA rehabilitation programmes with preventive lifestyle interventions. Further robust randomised controlled trials of comprehensive rehabilitation programmes that promote secondary prevention and lifestyle modification immediately after a TIA are needed. © British Journal of General Practice 2017.
Hot spot of structural ambivalence in prion protein revealed by secondary structure principal component analysis.

PubMed

Yamamoto, Norifumi

2014-08-21

The conformational conversion of proteins into an aggregation-prone form is a common feature of various neurodegenerative disorders including Alzheimer's, Huntington's, Parkinson's, and prion diseases. In the early stage of prion diseases, secondary structure conversion in prion protein (PrP) causing β-sheet expansion facilitates the formation of a pathogenic isoform with a high content of β-sheets and strong aggregation tendency to form amyloid fibrils. Herein, we propose a straightforward method to extract essential information regarding the secondary structure conversion of proteins from molecular simulations, named secondary structure principal component analysis (SSPCA). The definite existence of a PrP isoform with an increased β-sheet structure was confirmed in a free-energy landscape constructed by mapping protein structural data into a reduced space according to the principal components determined by the SSPCA. We suggest a "spot" of structural ambivalence in PrP-the C-terminal part of helix 2-that lacks a strong intrinsic secondary structure, thus promoting a partial α-helix-to-β-sheet conversion. This result is important to understand how the pathogenic conformational conversion of PrP is initiated in prion diseases. The SSPCA has great potential to solve various challenges in studying highly flexible molecular systems, such as intrinsically disordered proteins, structurally ambivalent peptides, and chameleon sequences.
The Effects of Revealed Information on Catastrophe Loss Projection Models' Characterization of Risk: Damage Vulnerability Evidence from Florida.

PubMed

Karl, J Bradley; Medders, Lorilee A; Maroney, Patrick F

2016-06-01

We examine whether the risk characterization estimated by catastrophic loss projection models is sensitive to the revelation of new information regarding risk type. We use commercial loss projection models from two widely employed modeling firms to estimate the expected hurricane losses of Florida Atlantic University's building stock, both including and excluding secondary information regarding hurricane mitigation features that influence damage vulnerability. We then compare the results of the models without and with this revealed information and find that the revelation of additional, secondary information influences modeled losses for the windstorm-exposed university building stock, primarily evidenced by meaningful percent differences in the loss exceedance output indicated after secondary modifiers are incorporated in the analysis. Secondary risk characteristics for the data set studied appear to have substantially greater impact on probable maximum loss estimates than on average annual loss estimates. While it may be intuitively expected for catastrophe models to indicate that secondary risk characteristics hold value for reducing modeled losses, the finding that the primary value of secondary risk characteristics is in reduction of losses in the "tail" (low probability, high severity) events is less intuitive, and therefore especially interesting. Further, we address the benefit-cost tradeoffs that commercial entities must consider when deciding whether to undergo the data collection necessary to include secondary information in modeling. Although we assert the long-term benefit-cost tradeoff is positive for virtually every entity, we acknowledge short-term disincentives to such an effort. © 2015 Society for Risk Analysis.
Assessment of Rainfall-induced Landslide Potential and Spatial Distribution

NASA Astrophysics Data System (ADS)

Chen, Yie-Ruey; Tsai, Kuang-Jung; Chen, Jing-Wen; Chiang, Jie-Lun; Hsieh, Shun-Chieh; Chue, Yung-Sheng

2016-04-01

Recently, due to the global climate change, most of the time the rainfall in Taiwan is of short duration but with high intensity. Due to Taiwan's steep terrain, rainfall-induced landslides often occur and lead to human causalities and properties loss. Taiwan's government has invested huge reconstruction funds to the affected areas. However, after rehabilitation they still face the risk of secondary sediment disasters. Therefore, this study assesses rainfall-induced (secondary) landslide potential and spatial distribution in watershed of Southern Taiwan under extreme climate change. The study areas in this research are Baolai and Jianshan villages in the watershed of the Laonongxi River Basin in the Southern Taiwan. This study focused on the 3 years after Typhoon Morakot (2009 to 2011). During this period, the study area experienced six heavy rainfall events including five typhoons and one heavy rainfall. The genetic adaptive neural network, texture analysis and GIS were implemented in the analysis techniques for the interpretation of satellite images and to obtain surface information and hazard log data and to analyze land use change. A multivariate hazards evaluation method was applied to quantitatively analyze the weights of various natural environmental and slope development hazard factors. Furthermore, this study established a slope landslide potential assessment model and depicted a slope landslide potential diagram by using the GIS platform. The interaction between (secondary) landslide mechanism, scale, and location was analyzed using association analysis of landslide historical data and regional environmental characteristics. The results of image classification before and after six heavy rainfall events show that the values of coefficient of agreement are at medium-high level. By multivariate hazards evaluation method, geology and the effective accumulative rainfall (EAR) are the most important factors. Slope, distance from fault, aspect, land disturbance, and elevation are the secondary important factors. Under the different rainfall, the greater the average of EAR, the more the landslide occurrence and area increments. The determination coefficients of trend lines on the charts of the average of EAR versus number and area of landslide increment are 0.83 and 0.92, respectively. The relations between landslide potential level, degree of land disturbance, and the ratio of number and area of landslide increment corresponding six heavy rainfall events are positive and the determination coefficients of trend lines are 0.82 and 0.72, respectively. The relation between the average of EAR and the area of landslide increment corresponding five heavy rainfall events (excluding Morakot) is positive and the determination coefficient of trend line is 0.98. Furthermore, the relation between the area increment of secondary landslide, average of EAR or the slope disturbance is positive. Under the same slope disturbance, the greater the EAR, the more the area increment of secondary landslide. Contrarily, under the same EAR, the greater the slope disturbance, the more the area increment of secondary landslide. The results of the analysis of this study can be a reference for the government for subsequent countermeasures for slope sediment disaster sensitive area to reduce the number of casualties and significantly reduce the social cost of post-disaster.
Reliability and construct validity of the Malay version of the Job Content Questionnaire (JCQ) among secondary school teachers in Kota Bharu, Kelantan, Malaysia.

PubMed

Hadi, Azlihanis Abdul; Naing, Nyi Nyi; Daud, Aziah; Nordin, Rusli

2006-11-01

This study was conducted to assess the reliability and construct validity of the Malay version of Job Content Questionnaire (JCQ) among secondary school teachers in Kota Bharu, Kelantan. A total of 68 teachers consented to participate in the study and were administered the Malay version of JCQ. Reliability was determined using Cronbach's alpha for internal consistency whilst construct validity was assessed using factor analysis. The results indicated that Cronbach's alpha coefficients revealed decision latitude (0.75), psychological job demand (0.50) and social support (0.84). Factor analysis showed three meaningful common factors that could explain the construct of Karasek's demand-control-social support model. The study suggests the JCQ scales are reliable and valid tools for assessing job stress in school teachers.
Correlation between musical aptitude and learning foreign languages: an epidemiological study in secondary school Italian students

PubMed Central

PICCIOTTI, P.M.; BUSSU, F.; CALò, L.; GALLUS, R.; SCARANO, E.; DI CINTIO, G.; CASSARÀ, F.; D’ALATRI, L.

2018-01-01

SUMMARY The aim of this study was to assess if a correlation exists between language learning skills and musical aptitude through the analysis of scholarly outcomes concerning the study of foreign languages and music. We enrolled 502 students from a secondary Italian school (10-14 years old), attending both traditional courses (2 hours/week of music classes scheduled) and special courses (six hours). For statistical analysis, we considered grades in English, French and Music. Our results showed a significant correlation between grades in the two foreign languages and in music, both in the traditional courses and in special courses, and better results in French than for special courses. These results are discussed and interpreted through the literature about neuroanatomical and physiological mechanisms of foreign language learning and music perception. PMID:29756615
Inquiry practice and identity of beginning secondary science teachers in the online and offline learning community: A longitudinal mixed methods study

NASA Astrophysics Data System (ADS)

Bang, Eunjin

This two-year study explored changes in practices and the emerging identities of beginning secondary science teachers who participated in an online science specific mentoring program. Fourteen beginning secondary science teachers and six experienced secondary science teachers were selected for the study. As a mixed methods study, data were gathered quantitatively and qualitatively. A hierarchical linear modeling was used in order to depict the changes in inquiry-based science practices as a result of content-focused online mentoring program. Qualitative data were collected via monthly semi-structured interviews, pre, post, and follow-up yearly semi-structured interviews, and finally online written dialogues of beginning secondary science teachers and their e-mentors. A mixed method was used that utilized the results of quantitative data, Items for Inquiry-Based Practice (IBP) scores, helped for selecting cases for qualitative analysis. Results indicated that there were no significant differences in IBP scores among the fourteen beginning secondary science teachers; however, three groups were detected: increasing use, no change, and decreasing use in inquiry-based practices. Porsha, who made increasing use, showed four emerging identities throughout two years: watchful-imitator, seeker, collaborator, and junior-leader. Nora, who made no change, showed only two emerging identities: imitator and seeker. Netty, who made decreasing use, showed also two emerging identities: lonely-follower and feeder. Different identities detected in online dialogue, namely Porsha as a whistleblower, Nora as a watchful-imitator, and Netty as a watchful-feeder. The corresponding responses of three beginning secondary science teachers' e-mentors were defender, provider, listener, pusher and umpire. This study provides not only an in-depth picture of the contemporary science education community of practice but also suggest a roadmap to design an effective induction program.

Transcriptome analysis of Petunia axillaris flowers reveals genes involved in morphological differentiation and metabolite transport

PubMed Central

Amano, Ikuko; Kitajima, Sakihito; Suzuki, Hideyuki; Koeduka, Takao

2018-01-01

The biosynthesis of plant secondary metabolites is associated with morphological and metabolic differentiation. As a consequence, gene expression profiles can change drastically, and primary and secondary metabolites, including intermediate and end-products, move dynamically within and between cells. However, little is known about the molecular mechanisms underlying differentiation and transport mechanisms. In this study, we performed a transcriptome analysis of Petunia axillaris subsp. parodii, which produces various volatiles in its corolla limbs and emits metabolites to attract pollinators. RNA-sequencing from leaves, buds, and limbs identified 53,243 unigenes. Analysis of differentially expressed genes, combined with gene ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses, showed that many biological processes were highly enriched in limbs. These included catabolic processes and signaling pathways of hormones, such as gibberellins, and metabolic pathways, including phenylpropanoids and fatty acids. Moreover, we identified five transporter genes that showed high expression in limbs, and we performed spatiotemporal expression analyses and homology searches to infer their putative functions. Our systematic analysis provides comprehensive transcriptomic information regarding morphological differentiation and metabolite transport in the Petunia flower and lays the foundation for establishing the specific mechanisms that control secondary metabolite biosynthesis in plants. PMID:29902274
Effect of drying methods of microencapsulated Lactobacillus acidophilus and Lactococcus lactis ssp. cremoris on secondary protein structure and glass transition temperature as studied by Fourier transform infrared and differential scanning calorimetry.

PubMed

Dianawati, Dianawati; Mishra, Vijay; Shah, Nagendra P

2013-03-01

Protective mechanisms of casein-based microcapsules containing mannitol on Lactobacillus acidophilus and Lactococcus lactis ssp. cremoris, changes in their secondary protein structures, and glass transition of the microcapsules were studied after spray- or freeze-drying and after 10 wk of storage in aluminum foil pouches containing different desiccants (NaOH, LiCl, or silica gel) at 25°C. An in situ Fourier transform infrared analysis was carried out to recognize any changes in fatty acids (FA) of bacterial cell envelopes, interaction between polar site of cell envelopes and microcapsules, and alteration of their secondary protein structures. Differential scanning calorimetry was used to determine glass transition of microcapsules based on glass transition temperature (T(g)) values. Hierarchical cluster analysis based on functional groups of cell envelopes and secondary protein structures was also carried out to classify the microencapsulated bacteria due to the effects of spray- or freeze-drying and storage for 10 wk. The results showed that drying process did not affect FA and secondary protein structures of bacteria; however, those structures were affected during storage depending upon the type of desiccant used. Interaction between exterior of bacterial cell envelopes and microencapsulant occurred after spray- or freeze-drying; however, these structures were maintained after storage in foil pouch containing sodium hydroxide. Method of drying and type of desiccants influenced the level of similarities of microencapsulated bacteria. Desiccants and method of drying affected glass transition, yet no T(g) ≤25°C was detected. This study demonstrated that the changes in FA and secondary structures of the microencapsulated bacteria still occurred during storage at T(g) above room temperature, indicating that the glassy state did not completely prevent chemical activities. Copyright © 2013 American Dairy Science Association. Published by Elsevier Inc. All rights reserved.
A modeling analysis of alternative primary and secondary US ozone standards in urban and rural areas

NASA Astrophysics Data System (ADS)

Nopmongcol, Uarporn; Emery, Chris; Sakulyanontvittaya, Tanarit; Jung, Jaegun; Knipping, Eladio; Yarwood, Greg

2014-12-01

This study employed the High-Order Decoupled Direct Method (HDDM) of sensitivity analysis in a photochemical grid model to determine US anthropogenic emissions reductions required from 2006 levels to meet alternative US primary (health-based) and secondary (welfare-based) ozone (O3) standards. Applying the modeling techniques developed by Yarwood et al. (2013), we specifically evaluated sector-wide emission reductions needed to meet primary standards in the range of 60-75 ppb, and secondary standards in the range of 7-15 ppm-h, in 22 cities and at 20 rural sites across the US for NOx-only, combined NOx and VOC, and VOC-only scenarios. Site-specific model biases were taken into account by applying adjustment factors separately for the primary and secondary standard metrics, analogous to the US Environmental Protection Agency's (EPA) relative response factor technique. Both bias-adjusted and unadjusted results are presented and analyzed. We found that the secondary metric does not necessarily respond to emission reductions the same way the primary metric does, indicating sensitivity to their different forms. Combined NOx and VOC reductions are most effective for cities, whereas NOx-only reductions are sufficient at rural sites. Most cities we examined require more than 50% US anthropogenic emission reductions from 2006 levels to meet the current primary 75 ppb US standard and secondary 15 ppm-h target. Most rural sites require less than 20% reductions to meet the primary 75 ppb standard and less than 40% reductions to meet the secondary 15 ppm-h target. Whether the primary standard is protective of the secondary standard depends on the combination of alternative standard levels. Our modeling suggests that the current 75 ppb standard achieves a 15 ppm-h secondary target in most (17 of 22) cities, but only half of the rural sites; the inability for several western cities and rural areas to achieve the seasonally-summed secondary 15 ppm-h target while meeting the 75 ppb primary target is likely driven by higher background O3 that is commonly reported in the western US. However, a 70 ppb primary standard is protective of a 15 ppm-h secondary standard in all cities and 18 of 20 rural sites we examined, and a 60 ppb primary standard is protective of a 7 ppm-h secondary standard in all cities and 19 of 20 rural sites. If EPA promulgates separate primary and secondary standards, exceedance areas will need to develop and demonstrate control strategies to achieve both. This HDDM analysis provides an illustrative screening assessment by which to estimate emissions reductions necessary to satisfy both standards.
Is the spatial distribution of brain lesions associated with closed-head injury predictive of subsequent development of attention-deficit/hyperactivity disorder? Analysis with brain-image database

NASA Technical Reports Server (NTRS)

Herskovits, E. H.; Megalooikonomou, V.; Davatzikos, C.; Chen, A.; Bryan, R. N.; Gerring, J. P.

1999-01-01

PURPOSE: To determine whether there is an association between the spatial distribution of lesions detected at magnetic resonance (MR) imaging of the brain in children after closed-head injury and the development of secondary attention-deficit/hyperactivity disorder (ADHD). MATERIALS AND METHODS: Data obtained from 76 children without prior history of ADHD were analyzed. MR images were obtained 3 months after closed-head injury. After manual delineation of lesions, images were registered to the Talairach coordinate system. For each subject, registered images and secondary ADHD status were integrated into a brain-image database, which contains depiction (visualization) and statistical analysis software. Using this database, we assessed visually the spatial distributions of lesions and performed statistical analysis of image and clinical variables. RESULTS: Of the 76 children, 15 developed secondary ADHD. Depiction of the data suggested that children who developed secondary ADHD had more lesions in the right putamen than children who did not develop secondary ADHD; this impression was confirmed statistically. After Bonferroni correction, we could not demonstrate significant differences between secondary ADHD status and lesion burdens for the right caudate nucleus or the right globus pallidus. CONCLUSION: Closed-head injury-induced lesions in the right putamen in children are associated with subsequent development of secondary ADHD. Depiction software is useful in guiding statistical analysis of image data.
Turbulent Mixing of Primary and Secondary Flow Streams in a Rocket-Based Combined Cycle Engine

NASA Technical Reports Server (NTRS)

Cramer, J. M.; Greene, M. U.; Pal, S.; Santoro, R. J.; Turner, Jim (Technical Monitor)

2002-01-01

This viewgraph presentation gives an overview of the turbulent mixing of primary and secondary flow streams in a rocket-based combined cycle (RBCC) engine. A significant RBCC ejector mode database has been generated, detailing single and twin thruster configurations and global and local measurements. On-going analysis and correlation efforts include Marshall Space Flight Center computational fluid dynamics modeling and turbulent shear layer analysis. Potential follow-on activities include detailed measurements of air flow static pressure and velocity profiles, investigations into other thruster spacing configurations, performing a fundamental shear layer mixing study, and demonstrating single-shot Raman measurements.
Sigsearch: a new term for post hoc unplanned search for statistically significant relationships with the intent to create publishable findings.

PubMed

Hashim, Muhammad Jawad

2010-09-01

Post-hoc secondary data analysis with no prespecified hypotheses has been discouraged by textbook authors and journal editors alike. Unfortunately no single term describes this phenomenon succinctly. I would like to coin the term "sigsearch" to define this practice and bring it within the teaching lexicon of statistics courses. Sigsearch would include any unplanned, post-hoc search for statistical significance using multiple comparisons of subgroups. It would also include data analysis with outcomes other than the prespecified primary outcome measure of a study as well as secondary data analyses of earlier research.
Characteristics related to early secondary amenorrhoea and pregnancy among women diagnosed with systemic lupus erythematosus: an analysis using the GOAL study.

PubMed

Knight, Jessica H; Howards, Penelope P; Spencer, Jessica B; Tsagaris, Katina C; Lim, Sam S

2016-01-01

Systemic lupus erythematosus (SLE) disproportionately affects women and often develops during their reproductive years. Research suggests that some women who receive cyclophosphamide as treatment for SLE experience earlier decline in menstrual function, but reproductive health among women with SLE who have not taken this drug is less well understood. This study aims to better understand the relation between SLE and reproduction by assessing early secondary amenorrhoea and pregnancy in women treated with and without cyclophosphamide from a population-based cohort with large numbers of African-Americans. Female patients with SLE, ages 20-40 at time of diagnosis, who were 40 years or older at the time of the survey were included in this analysis (N=147). Participants in the Georgians Organized Against Lupus (GOAL) study were asked about their reproductive histories including early secondary amenorrhoea, defined as loss of menstruation before age 40. Women who were cyclophosphamide naïve had an increased prevalence of early secondary amenorrhoea compared with population estimates, 13-17% compared with 1-5%. Factors associated with early secondary amenorrhoea in women not treated with cyclophosphamide were marital status and receipt of a kidney transplant. Treatment with cyclophosphamide doubled the prevalence after adjustment for patient characteristics. Over 88% of women reported being pregnant at least once, and about 83% of these had a child, but the majority of pregnancies occurred before diagnosis. SLE diagnosed in early adulthood may affect women's reproductive health even if they are not treated with cyclophosphamide. Better understanding of other factors related to reproductive health in this population will improve clinicians' and patients' abilities to make treatment and family planning decisions.
Characteristics related to early secondary amenorrhoea and pregnancy among women diagnosed with systemic lupus erythematosus: an analysis using the GOAL study

PubMed Central

Knight, Jessica H; Howards, Penelope P; Spencer, Jessica B; Tsagaris, Katina C; Lim, Sam S

2016-01-01

Objective Systemic lupus erythematosus (SLE) disproportionately affects women and often develops during their reproductive years. Research suggests that some women who receive cyclophosphamide as treatment for SLE experience earlier decline in menstrual function, but reproductive health among women with SLE who have not taken this drug is less well understood. This study aims to better understand the relation between SLE and reproduction by assessing early secondary amenorrhoea and pregnancy in women treated with and without cyclophosphamide from a population-based cohort with large numbers of African-Americans. Methods Female patients with SLE, ages 20–40 at time of diagnosis, who were 40 years or older at the time of the survey were included in this analysis (N=147). Participants in the Georgians Organized Against Lupus (GOAL) study were asked about their reproductive histories including early secondary amenorrhoea, defined as loss of menstruation before age 40. Results Women who were cyclophosphamide naïve had an increased prevalence of early secondary amenorrhoea compared with population estimates, 13–17% compared with 1–5%. Factors associated with early secondary amenorrhoea in women not treated with cyclophosphamide were marital status and receipt of a kidney transplant. Treatment with cyclophosphamide doubled the prevalence after adjustment for patient characteristics. Over 88% of women reported being pregnant at least once, and about 83% of these had a child, but the majority of pregnancies occurred before diagnosis. Conclusions SLE diagnosed in early adulthood may affect women's reproductive health even if they are not treated with cyclophosphamide. Better understanding of other factors related to reproductive health in this population will improve clinicians' and patients' abilities to make treatment and family planning decisions. PMID:27752335
Organizational health and the achievement level of students in science at the secondary-level schools in Sri Lanka

NASA Astrophysics Data System (ADS)

Pakkeer-Jaufar, Pakkeer Cadermohideen

This study sought to identify those organizational health factors that might have overriding influence on the achievement level of students in science in Sri Lankan secondary schools. This study involved 752 students, 33 science teachers, and 10 principals from two different districts, Ampara and Colombo, in Sri Lanka. Ten Tamil medium, secondary level, public schools were selected to participate in this study. Data were collected using four types of instruments: a questionnaire for pupils; interview schedules for science teachers and principals; checklists for classroom/school facilities, science laboratory facilities, and science practicals; and a science achievement test. The analysis focused on the collective perceptions of students, science teachers, and principals. Regression and path analyses were used as major analysis techniques, and the qualitative data provided by science teachers and principals were considered for a crosschecking of the quantitative inferences. The researcher found teacher affiliation, academic emphasis, and instructional leadership of the principal, in descending order, were the overriding influential factors on the achievement level of students in science in Sri Lankan secondary schools. At the same time a similar descending order was found in their mean values and qualities. The researcher concluded that increasing the quality of the organizational health factors in Sri Lankan secondary schools would result in improved better achievement in science. The findings further indicate that instructional leadership of the principal had both direct and indirect effects on students' achievement in science when academic emphasis and teacher affiliation were taken into account. In addition, the resource support of the principal did not make any difference in students' science achievement and the findings stress the availability of the resources for individual students instead of assuming the general facilities of the school are available to all students of the school.
Sampling And Resolution Enhancement Techniques For The Infrared Analysis Of Adsorbed Proteins.

NASA Astrophysics Data System (ADS)

Fuller, Michael P.; Singh, Bal R.

1989-12-01

In this report, we have analyzed the secondary structures of the dichain form of tetanus neurotoxin using. FT-IR and circular dichroic spectroscopies for a-helix, β-sheets, β-turns and random coils. These results indicate that the secondary structures are significantly different from those reported in earlier studies in that it shows much higher content of ordered structures (~50%) which could be significant for the function of the neurotoxin.
An Analysis of Teacher Perceptions of a Principal's Leadership Behaviors Associated with the Integration of a One-to-One Laptop Program for Students in a Parochial Secondary School

ERIC Educational Resources Information Center

Skevakis, Anthony

2010-01-01

The purpose of this explanatory single-case case study (Yin, 2003) was to investigate teachers' perceptions of a principal's leadership behavior associated with the integration of a one-to-one laptop program in a parochial secondary school. The sample included the school principal and teachers who have had at least one year of teaching experience…
Secondary structural analyses of ITS1 in Paramecium.

PubMed

Hoshina, Ryo

2010-01-01

The nuclear ribosomal RNA gene operon is interrupted by internal transcribed spacer (ITS) 1 and ITS2. Although the secondary structure of ITS2 has been widely investigated, less is known about ITS1 and its structure. In this study, the secondary structure of ITS1 sequences for Paramecium and other ciliates was predicted. Each Paramecium ITS1 forms an open loop with three helices, A through C. Helix B was highly conserved among Paramecium, and similar helices were found in other ciliates. A phylogenetic analysis using the ITS1 sequences showed high-resolution, implying that ITS1 is a good tool for species-level analyses.
Cause-Effect Analysis: Improvement of a First Year Engineering Students' Calculus Teaching Model

ERIC Educational Resources Information Center

van der Hoff, Quay; Harding, Ansie

2017-01-01

This study focuses on the mathematics department at a South African university and in particular on teaching of calculus to first year engineering students. The paper reports on a cause-effect analysis, often used for business improvement. The cause-effect analysis indicates that there are many factors that impact on secondary school teaching of…
School Safety, Severe Disciplinary Actions, and School Characteristics: A Secondary Analysis of the School Survey on Crime and Safety

ERIC Educational Resources Information Center

Han, Seunghee; Akiba, Motoko

2011-01-01

On the basis of a secondary analysis of survey data collected from 1,872 secondary school principals in the 2005-2006 School Survey on Crime and Safety, we examined the frequency of and reasons for severe disciplinary actions and the relationship between school characteristics and severe disciplinary actions. We found that severe disciplinary…
Study of multilayered SiGe semiconductor structures by X-ray diffractometry, grazing-incidence X-ray reflectometry, and secondary-ion mass spectrometry

DOE Office of Scientific and Technical Information (OSTI.GOV)

Yunin, P. A., E-mail: yunin@ipmras.ru; Drozdov, Yu. N.; Drozdov, M. N.

2013-12-15

In this publication, we report the results of studying a multilayerd nonperiodic SiGe/Si structure by the methods of X-ray diffractometry, grazing-angle X-ray reflectometry, and secondary-ion mass spectrometry (SIMS). Special attention is paid to the processing of the component distribution profile using the SIMS method and to consideration of the most significant experimental distortions introduced by this method. A method for processing the measured composition distribution profile with subsequent consideration of the influence of matrix effects, variation in the etching rate, and remnants of ion sputtering is suggested. The results of such processing are compared with a structure model obtained uponmore » combined analysis of X-ray diffractometry and grazing-angle reflectometry data. Good agreement between the results is established. It is shown that the combined use of independent techniques makes it possible to improve the methods of secondary-ion mass spectrometry and grazing-incidence reflectometry as applied to an analysis of multilayered heteroepitaxial structures (to increase the accuracy and informativity of these methods)« less
Secondary Analysis of Qualitative Data.

ERIC Educational Resources Information Center

Turner, Paul D.

The reanalysis of data to answer the original research question with better statistical techniques or to answer new questions with old data is not uncommon in quantitative studies. Meta analysis and research syntheses have increased with the increase in research using similar statistical analyses, refinements of analytical techniques, and the…
Analysis of Students' Arguments on Evolutionary Theory

ERIC Educational Resources Information Center

Basel, Nicolai; Harms, Ute; Prechtl, Helmut

2013-01-01

A qualitative exploratory study was conducted to reveal students' argumentation skills in the context of the topic of evolution. Transcripts from problem-centred interviews on secondary students' beliefs about evolutionary processes of adaptation were analysed using a content analysis approach. For this purpose two categorical systems were…
Temporal geospatial analysis of secondary school students’ examination performance

NASA Astrophysics Data System (ADS)

Nik Abd Kadir, ND; Adnan, NA

2016-06-01

Malaysia's Ministry of Education has improved the organization of the data to have the geographical information system (GIS) school database. However, no further analysis is done using geospatial analysis tool. Mapping has emerged as a communication tool and becomes effective way to publish the digital and statistical data such as school performance results. The objective of this study is to analyse secondary school student performance of science and mathematics scores of the Sijil Pelajaran Malaysia Examination result in the year 2010 to 2014 for the Kelantan's state schools with the aid of GIS software and geospatial analysis. The school performance according to school grade point average (GPA) from Grade A to Grade G were interpolated and mapped and query analysis using geospatial tools able to be done. This study will be beneficial to the education sector to analyse student performance not only in Kelantan but to the whole Malaysia and this will be a good method to publish in map towards better planning and decision making to prepare young Malaysians for the challenges of education system and performance.
Nursing Student Loan Debt: A Secondary Analysis of the National Student Nurses' Association Annual Survey of New Graduates.

PubMed

Feeg, Veronica D; Mancino, Diane J

2014-01-01

The purpose of this study is to describe nursing student loan debt and financial choices from a secondary analysis of the National Student Nurses Association Annual New Graduate Survey. The findings in the secondary analysis show loan debt incurred by nursing students comparable to loan debt reported recently for all new college graduates in general. However, comparing types of programs and types of schools yielded clear variations. More than one-third of new graduates who reported having loans to repay were unemployed; more than one-quarter of those who worked part-time and one-quarter of those who worked full-time to finance their education were unemployed; and almost one-third of students whose parents had paid for their education were unemployed. New graduates from for-profit schools were more likely to report they had accumulated high debt to pay for school than all new graduates combined. Nursing students enter the job market with substantial financial debt that may impact their future. Educators and policymakers need to address these growing concerns to sustain a healthy supply of nurses.
Discovering the secondary metabolite potential encoded within Entomopathogenic Fungi

USDA-ARS?s Scientific Manuscript database

This article discusses the secondary metabolite potential of the insect pathogens Metarhizium and Beauveria, including a bioinformatics analysis of secondary metabolite genes for which no products are yet identified....

Validation of Reference Genes for Gene Expression by Quantitative Real-Time RT-PCR in Stem Segments Spanning Primary to Secondary Growth in Populus tomentosa.

PubMed

Wang, Ying; Chen, Yajuan; Ding, Liping; Zhang, Jiewei; Wei, Jianhua; Wang, Hongzhi

2016-01-01

The vertical segments of Populus stems are an ideal experimental system for analyzing the gene expression patterns involved in primary and secondary growth during wood formation. Suitable internal control genes are indispensable to quantitative real time PCR (qRT-PCR) assays of gene expression. In this study, the expression stability of eight candidate reference genes was evaluated in a series of vertical stem segments of Populus tomentosa. Analysis through software packages geNorm, NormFinder and BestKeeper showed that genes ribosomal protein (RP) and tubulin beta (TUBB) were the most unstable across the developmental stages of P. tomentosa stems, and the combination of the three reference genes, eukaryotic translation initiation factor 5A (eIF5A), Actin (ACT6) and elongation factor 1-beta (EF1-beta) can provide accurate and reliable normalization of qRT-PCR analysis for target gene expression in stem segments undergoing primary and secondary growth in P. tomentosa. These results provide crucial information for transcriptional analysis in the P. tomentosa stem, which may help to improve the quality of gene expression data in these vertical stem segments, which constitute an excellent plant system for the study of wood formation.
A Prospective Multicenter Study Evaluating Secondary Adrenal Suppression After Antiemetic Dexamethasone Therapy in Cancer Patients Receiving Chemotherapy: A Korean South West Oncology Group Study.

PubMed

Han, Hye Sook; Park, Ji Chan; Park, Suk Young; Lee, Kyu Taek; Bae, Sang Byung; Kim, Han Jo; Kim, Samyoung; Yun, Hwan Jung; Bae, Woo Kyun; Shim, Hyun-Jeong; Hwang, Jun-Eul; Cho, Sang-Hee; Park, Moo-Rim; Shim, Hyeok; Kwon, Jihyun; Choi, Moon Ki; Kim, Seung Taik; Lee, Ki Hyeong

2015-12-01

In a previous pilot study, adrenal suppression was found to be common after antiemetic dexamethasone therapy in cancer patients. The objective of this large prospective multicenter study was to confirm the incidence and factors associated with secondary adrenal suppression related to antiemetic dexamethasone therapy in cancer patients receiving chemotherapy. Chemotherapy-naïve patients who were scheduled to receive at least three cycles of highly or moderately emetogenic chemotherapy with dexamethasone as an antiemetic were enrolled. Patients with a suppressed adrenal response before chemotherapy or those administered corticosteroids within 6 months of enrollment in the study were excluded. Between October 2010 and August 2014, 481 patients receiving chemotherapy underwent the rapid adrenocorticotropic hormone (ACTH) stimulation test to assess eligibility; 350 of these patients were included in the final analysis. Fifty-six patients (16.0%) showed a suppressed adrenal response in the rapid ACTH stimulation test at 3 or 6 months after the start of the first chemotherapy. The incidence of adrenal suppression was affected by age, performance status, stage, and use of megestrol acetate in univariate analysis. Multivariate analysis revealed that secondary adrenal suppression associated with antiemetic dexamethasone therapy was significantly associated with megestrol acetate treatment (odds ratio: 3.06; 95% confidence interval: 1.60 to 5.86; p < .001). This large prospective study indicates that approximately 15% of cancer patients receiving chemotherapy with a normal adrenal response show suppressed adrenal responses after antiemetic dexamethasone therapy. This result was particularly significant for patients cotreated with megestrol acetate. ©AlphaMed Press.
Deciphering the shape and deformation of secondary structures through local conformation analysis

PubMed Central

2011-01-01

Background Protein deformation has been extensively analysed through global methods based on RMSD, torsion angles and Principal Components Analysis calculations. Here we use a local approach, able to distinguish among the different backbone conformations within loops, α-helices and β-strands, to address the question of secondary structures' shape variation within proteins and deformation at interface upon complexation. Results Using a structural alphabet, we translated the 3 D structures of large sets of protein-protein complexes into sequences of structural letters. The shape of the secondary structures can be assessed by the structural letters that modeled them in the structural sequences. The distribution analysis of the structural letters in the three protein compartments (surface, core and interface) reveals that secondary structures tend to adopt preferential conformations that differ among the compartments. The local description of secondary structures highlights that curved conformations are preferred on the surface while straight ones are preferred in the core. Interfaces display a mixture of local conformations either preferred in core or surface. The analysis of the structural letters transition occurring between protein-bound and unbound conformations shows that the deformation of secondary structure is tightly linked to the compartment preference of the local conformations. Conclusion The conformation of secondary structures can be further analysed and detailed thanks to a structural alphabet which allows a better description of protein surface, core and interface in terms of secondary structures' shape and deformation. Induced-fit modification tendencies described here should be valuable information to identify and characterize regions under strong structural constraints for functional reasons. PMID:21284872
Deciphering the shape and deformation of secondary structures through local conformation analysis.

PubMed

Baussand, Julie; Camproux, Anne-Claude

2011-02-01

Protein deformation has been extensively analysed through global methods based on RMSD, torsion angles and Principal Components Analysis calculations. Here we use a local approach, able to distinguish among the different backbone conformations within loops, α-helices and β-strands, to address the question of secondary structures' shape variation within proteins and deformation at interface upon complexation. Using a structural alphabet, we translated the 3 D structures of large sets of protein-protein complexes into sequences of structural letters. The shape of the secondary structures can be assessed by the structural letters that modeled them in the structural sequences. The distribution analysis of the structural letters in the three protein compartments (surface, core and interface) reveals that secondary structures tend to adopt preferential conformations that differ among the compartments. The local description of secondary structures highlights that curved conformations are preferred on the surface while straight ones are preferred in the core. Interfaces display a mixture of local conformations either preferred in core or surface. The analysis of the structural letters transition occurring between protein-bound and unbound conformations shows that the deformation of secondary structure is tightly linked to the compartment preference of the local conformations. The conformation of secondary structures can be further analysed and detailed thanks to a structural alphabet which allows a better description of protein surface, core and interface in terms of secondary structures' shape and deformation. Induced-fit modification tendencies described here should be valuable information to identify and characterize regions under strong structural constraints for functional reasons.
Understanding CMEs using plasma diagnostics of the related dimmings

NASA Astrophysics Data System (ADS)

Vanninathan, Kamalam; Veronig, Astrid; Gomory, Peter; Dissauer, Karin; Temmer, Manuela; Hannah, Iain; Kontar, Eduard

2017-04-01

Coronal Mass Ejections (CMEs) are often associated with dimmings that are well observed in Extreme Ultra-violet (EUV) wavelengths. Such dimmings are suggested to represent the evacuation of mass that is carried out by CMEs and are a unique and indirect means to study CME properties. While Earth-directed CMEs (on-disk CMEs) are difficult to observe due to the bright background solar disk and projection effects, their corresponding dimmings are clearly discernible and ideally suited for analysis. Using data from the 6 EUV channels of Solar Dynamics Observatory/Atmospheric Imaging Assembly for Differential Emission Measure (DEM) diagnostics, we determine the plasma characteristics of the dimming region. These data are well suited for this kind of study due to the good temperature ranges covered by the multiple passbands of the instrument. We analyse 7 on-disk and 5 off-limb events and derive the weighted density and temperature as a function of time, from the DEMs. From such an analysis we differentiate 2 types of dimming regions: core and secondary dimmings. Core dimmings often occur in pairs lying on either sides of the active region and in opposite polarity regions while the secondary dimming is more extended. In both the regions the derived plasma parameters reach a minimum within 30-60 min after the flare. For each event the core dimming region shows a higher decrease in density and temperature than the corresponding secondary dimming regions. The values of these parameters remains low within the core dimming region for the entire duration of this study ( 10 hrs after the flare) while the secondary dimming region starts to show a gradual increase after 1-2 hrs. We also use spectroscopic data from Hinode/Extreme-Ultraviolet Imaging Spectrometer to differentiate core and secondary dimming regions. We find that the Fe XIII 202 Å line shows double component profiles within the core dimming region with strong blueshifts of 100 km/s while the secondary dimming region has weak upflows of 10 km/s. We conclude that the core dimming region corresponds to footpoints of the erupting flux rope from where there is continuous strong upflowing plasma for at least 10 hrs after the flare, while the secondary dimming region begins to refill within 1-2 hrs. These measurements can be used to deduce information about the mass of on-disk CMEs where white light measurements can fail. We also confirm that the dimmings are mainly caused by density decrease and not temperature changes. DEM analysis is a strong tool to decipher CME properties from dimming regions.
Shaping the Conversation: A Secondary Analysis of Reproductive Decision-Making Among Black Mothers with HIV

PubMed Central

Amutah, Ndidiamaka N.; Gifuni, Jacqueline; Wesley, Yvonne

2016-01-01

The purpose of this qualitative secondary data analysis is to examine the major influencers on mothers with HIV in their childbearing decisions, as well as how those influencers shape conversations with clinicians and health-care providers regarding HIV treatment and prevention. The original study gained insight into the reproductive decision-making of mothers with HIV. By analyzing a subsample of 15 interviews from an original cohort of 25 participants in the earlier study, three major themes were identified as follows: (1) family members, not health-care providers, influence reproductive decisions; (2) negative attitudes toward subsequent pregnancies are mainly due to HIV transmission; and (3) birth control decisions were predominately supported by family members, while health-care providers were not consulted. PMID:27158227
Computer interviewing in urogynaecology: concept, development and psychometric testing of an electronic pelvic floor assessment questionnaire in primary and secondary care.

PubMed

Radley, S C; Jones, G L; Tanguy, E A; Stevens, V G; Nelson, C; Mathers, N J

2006-02-01

To develop and evaluate a Web-based, electronic pelvic floor symptoms assessment questionnaire (e-PAQ)1 for women. A cross-sectional study in primary and secondary care. Two general practices, two community health clinics and a secondary care urogynaecology clinic. A total of 432 women (204 in primary care and 228 in secondary care) were recruited between June 2003 and January 2004. The e-PAQ was located on a workstation (computer, touchscreen and printer). Women completed the e-PAQ prior to their appointment. Untreated women in primary care were asked to return seven days later to complete the e-PAQ a second time (test-retest). Factor analysis, reliability, validity, patient satisfaction, completion times and system costs. In secondary care, factor analysis identified 14 domains within the four dimensions (urinary, bowel, vaginal and sexual symptoms) with internal consistency (Cronbach's alpha)>or=0.7 in 11 of these. In primary care, alpha values were all>or=0.7 and test-retest analysis found acceptable intraclass correlations of 0.50-0.95 (P<0.001) for all domains. A measure of face validity and utility was gained using a nine-item questionnaire, which yielded strongly positive patient views on relevance and acceptability. The e-PAQ offers a user-friendly clinical tool, which provides valid and reliable data. The system offers comprehensive symptoms and quality of life evaluation and may enhance the clinical episode as well as the quality of care for women with pelvic floor disorders.
High Triterpenic Acids Production in Callus Cultures from Fruit Pulp of Two Apple Varieties.

PubMed

Verardo, Giancarlo; Gorassini, Andrea; Ricci, Donata; Fraternale, Daniele

2017-01-01

Very rarely fruit pulp has been used in in vitro culture to produce secondary metabolites useful in promoting health. The aims of this work were the study of the best conditions to obtain the callus cultures from the pulp of two varieties of apples, Golden Delicious (GD) and "Mela Rosa Marchigiana" (MRM), and the quali-quantitative analysis of secondary metabolites produced by the two in vitro callus cultures. Callus was induced on both Murashige and Skoog and Gamborg B5 media containing various combinations of supplements. To achieve the maximum recovery of secondary metabolites produced, preliminary extraction tests were carried out on GD apple culture using two different organic solvents (MeOH and EtOAc). The quali-quantitative analysis of the methanolic extract of both cultures was carried out by ESI-MS n and GC-MS techniques. The GC-MS analysis revealed the presence of triterpenic acids, in particular, oleanolic, ursolic, maslinic, pomolic, tormentic, corosolic and annurcoic acid along with a phytosterol, β-sitosterol. In addition, GD callus culture produced phloridzin, absent in the MRM culture. In this last culture, however, the total amount of secondary metabolites was markedly higher. The in vivo production of these bioactive compounds were also quantified in the GD and MRM apple pulps. Apple pulps produced higher amounts of triterpenic acids in vitro than in vivo. The present work can be considered a method to amplify the production of important secondary metabolites which exert beneficial effects on human health. Copyright © 2016 John Wiley & Sons, Ltd. Copyright © 2016 John Wiley & Sons, Ltd.
A Comparative Analysis of Child Welfare Services through the Eyes of African American, Caucasian, and Latino Parents

ERIC Educational Resources Information Center

Ayon, Cecilia; Lee, Cheryl D.

2005-01-01

Objective: The purpose of this study was to find if differences exist among 88 African American, Caucasian, and Latino families who received child welfare services. Method: A secondary data analysis of cross-sectional survey data employing standardized measures was used for this study. Family preservation (FP) services were received by 49…
The leisure style of Canadian rural recreation participants: An analysis based on three different rural leisure settings

Treesearch

Paul Heintzman; Don Dawson

2012-01-01

This study was a secondary analysis of data from a previous study of 248 Canadians on four dimensions of leisure style: time use, leisure setting, leisure activity participation, and leisure motivation. Correlation analyses were conducted to determine if frequency of participation in three rural leisure settings were related to other leisure style dimensions.
A Dyadic Analysis of Head Start Parents' Depressive Symptoms and Parent Involvement: Sense of Mastery as a Mediator

ERIC Educational Resources Information Center

Meng, Christine; Cheng, Ya-Fang

2017-01-01

This study used the actor-partner interdependence mediation model to examine the association among parents' depressive symptoms, sense of mastery, and parent involvement. To address the research goal, this study conducted secondary analysis using the cross-sectional data collected from the 2000 cohort of the Head Start Family and Child Experiences…
An Analysis of School District Demographic and Dispute Factors Affecting Services for Students with Autism Spectrum Disorder

ERIC Educational Resources Information Center

White, Mary Loyd

2012-01-01

The purpose of this study was to examine the educational services for students with autism in school districts (N = 115) in North Carolina to identify the characteristics and variables that contribute to positive student outcomes. This study used a secondary analysis of data from various resources across the state. Variables included number of…
Factors associated with reoperation in hypospadias surgery - A nationwide, population-based study.

PubMed

Lu, Yu-Chuan; Huang, Wei-Yi; Chen, Yu-Fen; Chang, Hong-Chiang; Pong, Yuan-Hung; Shih, Tsung-Hsien; Huang, Kuo-How

2017-04-01

To analyze the preoperative factors associated with the need for secondary surgery following primary urethroplasty. This study utilized a subset of the National Health Insurance Research Database, which includes the data on all paid medical benefit claims from 1997 to 2007, for 1 million beneficiaries in 2005. We analyzed the claims data for all patients with hypospadias who had undergone primary urethroplasty. The characteristics of the patients, surgeons, and hospitals associated with surgical outcomes were analyzed to investigate possible associations with the need for secondary surgery. Among 52,705 live male newborn babies, 218 were diagnosed with hypospadias, of whom 89 received repair surgery. A total of 75 (84.3%) male newborn babies received single hypospadias surgery, and 14 (15.7%) underwent more than two surgical procedures. Univariate analysis demonstrated that the type of hypospadias and the surgeon caseload volume were significantly associated with the need for additional hypospadias surgery (p = 0.02 and p = 0.03, respectively). In multivariate analysis, the type of hypospadias (distal vs. proximal, odds ratio, 0.25; p = 0.03) and the surgeon caseload volume (high vs. low, odds ratio, 0.04; p = 0.05) were significantly correlated with secondary operation. The type of hypospadias and the surgeon caseload volume were significantly associated with the need for secondary hypospadias surgery. The findings of this study provide important information on the outcomes of hypospadias repair for parents and specialists. Copyright © 2017. Published by Elsevier Taiwan.
Comparative proteomic analysis of Populus trichocarpa early stem from primary to secondary growth.

PubMed

Liu, Jinwen; Hai, Guanghui; Wang, Chong; Cao, Shenquan; Xu, Wenjing; Jia, Zhigang; Yang, Chuanping; Wang, Jack P; Dai, Shaojun; Cheng, Yuxiang

2015-08-03

Wood is derived from the secondary growth of tree stems. In this study, we investigated the global changes of protein abundance in Populus early stems using a proteomic approach. Morphological and histochemical analyses revealed three typical stages during Populus early stems, which were the primary growth stage, the transition stage from primary to secondary growth and the secondary growth stage. A total of 231 spots were differentially abundant during various growth stages of Populus early stems. During Populus early stem lignifications, 87 differential spots continuously increased, while 49 spots continuously decreased. These two categories encompass 58.9% of all differential spots, which suggests significant molecular changes from primary to secondary growth. Among 231 spots, 165 unique proteins were identified using LC-ESI-Q-TOF-MS, which were classified into 14 biological function groups. The proteomic characteristics indicated that carbohydrate metabolism, oxido-reduction, protein degradation and secondary cell wall metabolism were the dominantly occurring biochemical processes during Populus early stem development. This study helps in elucidating biochemical processes and identifies potential wood formation-related proteins during tree early stem development. It is a comprehensive proteomic investigation on tree early stem development that, for the first time, reveals the overall molecular networks that occur during Populus early stem lignifications. Copyright © 2015. Published by Elsevier B.V.
Comparative effectiveness research methodology using secondary data: A starting user's guide.

PubMed

Sun, Maxine; Lipsitz, Stuart R

2018-04-01

The use of secondary data, such as claims or administrative data, in comparative effectiveness research has grown tremendously in recent years. We believe that the current review can help investigators relying on secondary data to (1) gain insight into both the methodologies and statistical methods, (2) better understand the necessity of a rigorous planning before initiating a comparative effectiveness investigation, and (3) optimize the quality of their investigations. Specifically, we review concepts of adjusted analyses and confounders, methods of propensity score analyses, and instrumental variable analyses, risk prediction models (logistic and time-to-event), decision-curve analysis, as well as the interpretation of the P value and hypothesis testing. Overall, we hope that the current review article can help research investigators relying on secondary data to perform comparative effectiveness research better understand the necessity of a rigorous planning before study start, and gain better insight in the choice of statistical methods so as to optimize the quality of the research study. Copyright © 2017 Elsevier Inc. All rights reserved.
Cell Adhesion Molecule and Lymphocyte Activation Marker Expression during Experimental Vaginal Candidiasis

PubMed Central

Wormley, Floyd L.; Chaiban, Joseph; Fidel, Paul L.

2001-01-01

Cell-mediated immunity by Th1-type CD4+ T cells is the predominant host defense mechanism against mucosal candidiasis. However, studies using an estrogen-dependent murine model of vaginal candidiasis have demonstrated little to no change in resident vaginal T cells during infection and no systemic T-cell infiltration despite the presence of Candida-specific systemic Th1-type responses in infected mice. The present study was designed to further investigate these observations by characterizing T-cell activation and cell adhesion molecule expression during primary and secondary C. albicans vaginal infections. While flow cytometry analysis of activation markers showed some evidence for activation of CD3+ draining lymph node and/or vaginal lymphocytes during both primary and secondary vaginal Candida infection, CD3+ cells expressing the homing receptors and integrins α4β7, αM290β7, and α4β1 in draining lymph nodes of mice with primary and secondary infections were reduced compared to results for uninfected mice. At the local level, few vaginal lymphocytes expressed integrins, with only minor changes observed during both primary and secondary infections. On the other hand, immunohistochemical analysis of vaginal cell adhesion molecule expression showed increases in mucosal addressin cell adhesion molecule 1 and vascular cell adhesion molecule 1 expression during both primary and secondary infections. Altogether, these data suggest that although the vaginal tissue is permissive to cellular infiltration during a vaginal Candida infection, the reduced numbers of systemic cells expressing the reciprocal cellular adhesion molecules may preempt cellular infiltration, thereby limiting Candida-specific T-cell responses against infection. PMID:11447188
Time-space clustering of Vibrio cholerae 01 in Matlab, Bangladesh, 1970-1982.

PubMed

Craig, M

1988-01-01

Growing evidence for the existence of an aquatic reservoir of Vibrio cholerae has led some observers to postulate the existence of two distinct modes of disease transmission: primary and secondary. In primary transmission vibrios pass from the aquatic reservoir to humans via edible aquatic flora or fauna, or drinking water. Secondary transmission consists of faecal-oral transmission from person-to-person and may spawn epidemics. Cholera outbreaks are particularly well documented for the Matlab area of Bangladesh, where a field station has been run since 1963, at which patients from a study population of nearly 200,000 are treated for diarrhoeal diseases and monitored in a longitudinal demographic surveillance system. This paper seeks to illuminate the process of secondary transmission by presenting preliminary results of an analysis of the time-space distribution of cholera cases in Matlab for the period 1970-1982. It is argued that the detection of time-space clusters of cases resulting from secondary transmission requires locational data below the level of the village, that is at the level of the bari, or patrilineally-related household group because this is where inter-personal contact is greatest. The mapping of the study area at the bari level is described briefly and it is argued that the proportion of all asymptomatic infections and cases which can be mapped is great enough to enable inferences about transmission processes to be drawn. Results of the analysis of time-space interaction using the Knox method are presented and provide some support for within-bari clustering of cases resulting from secondary transmission.(ABSTRACT TRUNCATED AT 250 WORDS)
A Pilot Meta-Analysis of Computer-Based Scaffolding in STEM Education

ERIC Educational Resources Information Center

Belland, Brian R.; Walker, Andrew E.; Olsen, Megan Whitney; Leary, Heather

2015-01-01

This paper employs meta-analysis to determine the influence of computer-based scaffolding characteristics and study and test score quality on cognitive outcomes in science, technology, engineering, and mathematics education at the secondary, college, graduate, and adult levels. Results indicate that (a) computer-based scaffolding positively…
Adolescent Domain Screening Inventory-Short Form: Development and Initial Validation

ERIC Educational Resources Information Center

Corrigan, Matthew J.

2017-01-01

This study sought to develop a short version of the ADSI, and investigate its psychometric properties. Methods: This is a secondary analysis. Analysis to determine the Cronbach's Alpha, correlations to determine concurrent criterion validity and known instrument validity and a logistic regression to determine predictive validity were conducted.…
Experimental investigation on secondary combustion characteristics of airbreathing rockets

NASA Astrophysics Data System (ADS)

Mano, Takeshi; Eguchi, Akihiro; Shinohara, Suetsugu; Etou, Takao; Kaneko, Yutaka; Yamamoto, Youichi; Nakagawa, Ichirou

Empirical correlations of the secondary combustion efficiency of the airbreathing rocket were derived. From the results of a series of experiments employing a connected pipe facility, the combustion efficiency was related to dominant parameters. The feasibility of the performance prediction by one-dimensional analysis was also discussed. The analysis was found to be applicable to the flow processes in the secondary combustor, which include two-stream mixing and combustion.

Secondary Fire Analysis.

DTIC Science & Technology

1981-09-01

of wood frame and brick veneer, slab on grade construction), killed 33, injured more than 1,000, derailed a train, destroyed 4,000 cars, uprooted most... of a nuclear detonation) in or near structures, with emphasis on critical facil- ities and industries. Assessment of the potential for secondary fires...and/or 517 East Dayshore, Redwood City, CA 94063 DistI pial (DETACHABLE SUMMARY) SECONDARY FIRE ANALYSIS This report presents the results of a
Scanning secondary derived crashes from disabled and abandoned vehicle incidents on uninterrupted flow highways.

PubMed

Chimba, Deo; Kutela, Boniphace

2014-09-01

Extent of secondary crashes derived from primary incidents involving abandoned and disabled vehicles are presented in this paper. Using years 2004 to 2010 incident and crash data on selected Tennessee freeways, the study identified secondary crashes that resulted from disabled and abandoned vehicle primary incidents. The relationship between time and distance gaps before the secondary crash with respect to individual incident characteristics were evaluated through descriptive statistics and linear regression. The time and distance gap analysis indicated that a large portion of secondary crashes occurred within 20 min after the primary incidents and within a distance of 0.5 miles upstream. While 76% of incidents involved shoulder, most secondary crashes were related to the closing of right lanes. Overall, 58% of the secondary crashes occurred within 30 min after the occurrence of the primary incidents. Most of the vehicles in the incidents that involved towing and caused secondary crashes were towed or removed out of the travel way within 60 min from the time of occurrence. The study found that most (95%) secondary crashes were property damage only (PDO), while 49% were rear-end crashes. The negative binomial model was used to evaluate the impact of roadway geometry and traffic factors associated with frequency of these secondary crashes. It was found that the posted speed limit, congested segments, segments with high percentages of trucks, and peak hour volumes increased the likelihood of secondary crash occurrence. Roadway segments with wider medians, shoulders, and multilanes decrease the likelihood of secondary crashes caused by abandoned and disabled vehicles as the primary incidents. Practical applications The paper recommends that wider shoulders be provided on any section of freeway to accommodate abandoned or disabled vehicles to avoid blocking of travel lane(s). Copyright © 2014 National Safety Council and Elsevier Ltd. All rights reserved.
Genome-wide association analysis of secondary imaging phenotypes from the Alzheimer's disease neuroimaging initiative study.

PubMed

Zhu, Wensheng; Yuan, Ying; Zhang, Jingwen; Zhou, Fan; Knickmeyer, Rebecca C; Zhu, Hongtu

2017-02-01

The aim of this paper is to systematically evaluate a biased sampling issue associated with genome-wide association analysis (GWAS) of imaging phenotypes for most imaging genetic studies, including the Alzheimer's Disease Neuroimaging Initiative (ADNI). Specifically, the original sampling scheme of these imaging genetic studies is primarily the retrospective case-control design, whereas most existing statistical analyses of these studies ignore such sampling scheme by directly correlating imaging phenotypes (called the secondary traits) with genotype. Although it has been well documented in genetic epidemiology that ignoring the case-control sampling scheme can produce highly biased estimates, and subsequently lead to misleading results and suspicious associations, such findings are not well documented in imaging genetics. We use extensive simulations and a large-scale imaging genetic data analysis of the Alzheimer's Disease Neuroimaging Initiative (ADNI) data to evaluate the effects of the case-control sampling scheme on GWAS results based on some standard statistical methods, such as linear regression methods, while comparing it with several advanced statistical methods that appropriately adjust for the case-control sampling scheme. Copyright © 2016 Elsevier Inc. All rights reserved.
The association of peer pressure and peer affiliation with the health risk behaviors of secondary school students in Hong Kong.

PubMed

Loke, A Y; Mak, Y W; Wu, C S T

2016-08-01

The aim of this study was to explore the relationship between peer pressure and the health risk behaviors of secondary school students. Cross-sectional study using a self-completed questionnaire. Secondary school students in Year 3 were the target population of this study. Information was solicited from students on their perceptions of peer pressure using a questionnaire employing the Peer Pressure Inventory and their involvement in risk behaviors using a modified global school-based student health survey. A total of 840 secondary students from Hong Kong completed the questionnaires. The prevalence of secondary students who had ever smoked was 6.4%, consumed alcohol 39.2%, ever used drugs 0.5%, were sexually active 3.9%, and involved in bullying 20.5%. A higher proportion of secondary students involved in risk behaviors were affiliated with peers who were involved in the same activities: smoking (48.9%), drinking alcohol (86.5%), using drugs (18.2%), engaged in sexual activity (34.5%), and bullying (82.6%). The perception of peer conformity and peer involvement was found to be significantly correlated with the students' health risk behaviors, particularly with regard to smoking, drinking alcohol, and bullying. A logistic regression analysis showed that having friends who are involved in the same risk behaviors is the single most important factor associated with the participation of secondary students in those specific risk behaviors. The results of this study provided a better understanding of the association between peer pressure and the adoption of health behaviors. The development of effective peer-led prevention programs to reduce the uptake of health risk behaviors should therefore be promoted to prevent adolescents from developing serious health problems. Copyright © 2016 The Royal Society for Public Health. Published by Elsevier Ltd. All rights reserved.
Sick and still at school: an empirical study of sickness presence among students in Norwegian secondary school.

PubMed

Johansen, Vegard

2015-09-15

This paper investigates sickness presence (SP) among students. The research questions asked are: What is the distribution of SP among students in Norwegian secondary school? What characterises students with high SP in Norwegian secondary schools? A cross-sectional survey conducted in 10th grade in lower secondary school (LSS) and level 2 in upper secondary school (USS). The study was conducted using multivariate binomial logistic regression analysis. The survey was administered to 66 schools, and 2 or 3 classes participated at each school. The response rate was 84% in LSS (n=1880) and 81% in USS (n=1160). The paper provides information about the distribution of SP in secondary schools. The paper also examines which factors influence high SP. 75% of students in LSS and 80% of students in USS reported SP in the previous school year. 24% of students in LSS and 33% of students in USS reported high SP (4 episodes or more). Students with high absence from school were more likely to report high SP (ORLSS=1.7, ORUSS=2.0) than those with low/no absence. Girls were more likely to report high SP (ORLSS=1.5, ORUSS=1.5) than boys. In LSS, students with high school motivation reported high SP more often than students with low/medium motivation. In USS, students in vocational studies programmes reported high SP more often than students in general/academic studies programmes. Some SP during a school year may be more common than no SP. Gender, absence, motivation and education programme were important factors for high SP in secondary school. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.
Metabolome-genome-wide association study dissects genetic architecture for generating natural variation in rice secondary metabolism

PubMed Central

Matsuda, Fumio; Nakabayashi, Ryo; Yang, Zhigang; Okazaki, Yozo; Yonemaru, Jun-ichi; Ebana, Kaworu; Yano, Masahiro; Saito, Kazuki

2015-01-01

Plants produce structurally diverse secondary (specialized) metabolites to increase their fitness for survival under adverse environments. Several bioactive compounds for new drugs have been identified through screening of plant extracts. In this study, genome-wide association studies (GWAS) were conducted to investigate the genetic architecture behind the natural variation of rice secondary metabolites. GWAS using the metabolome data of 175 rice accessions successfully identified 323 associations among 143 single nucleotide polymorphisms (SNPs) and 89 metabolites. The data analysis highlighted that levels of many metabolites are tightly associated with a small number of strong quantitative trait loci (QTLs). The tight association may be a mechanism generating strains with distinct metabolic composition through the crossing of two different strains. The results indicate that one plant species produces more diverse phytochemicals than previously expected, and plants still contain many useful compounds for human applications. PMID:25267402
An Analysis of Massachusetts Department of Elementary and Secondary Education Vocational Technical Education Framework for Culinary Arts and Its Effectiveness on Students Enrolled in Post-Secondary Culinary Programs

ERIC Educational Resources Information Center

D'Addario, Albert S.

2011-01-01

This field-based action research practicum investigated how students who have completed culinary training programs in Massachusetts public secondary schools perform in post-secondary coursework. The Department of Elementary and Secondary Education has developed the Vocational Technical Education (VTE) Framework for Culinary Arts that outlines…
What Do We Want Students to Remember about the "Forgotten War"? A Comparative Study of the Korean War as Depicted in Korean, Japanese, and U.S. Secondary School History Textbooks

ERIC Educational Resources Information Center

Suh, Yonghee; Yurita, Makito; Metzger, Scott Alan

2008-01-01

Secondary school history textbooks in South Korea, Japan, and the United States have long struggled to give meaning and significance to the war waged on the Korean Peninsula between 1950 and 1953. Comparing commonly-used, contemporary history textbooks from each of these three nations, this analysis suggests that students on both sides of the…
Report on Partial Findings of an Ongoing Research: Social Networking Sites (SNS) as a Platform to Support Teaching and Learning in Secondary Schools

ERIC Educational Resources Information Center

Bt. Ubaidullah, Nor Hasbiah; Samsuddin, Khairulanuar; Bt. Fabil, Norsikin; Bt. Mahadi, Norhayati

2011-01-01

This paper reports the partial findings of a survey that was carried out in the analysis phase of an ongoing research for the development of a prototype of a Social Networking Site (SNS) to support teaching and learning in secondary schools. For the initial phase of the study, a quantitative research method was used based on a survey involving 383…
Theoretical and experimental investigation of turbulent mixing on ejector configuration and performance in a solar-driven organic-vapor ejector cycle chiller

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kucha, E.I.

1984-01-01

A general method was developed to calculate two dimensional (axisymmetric) mixing of a compressible jet in a variable cross-sectional area mixing channel of the ejector. The analysis considers mixing of the primary and secondary fluids at constant pressure and incorporates finite difference approximations to the conservation equations. The flow model is based on the mixing length approximations. A detailed study and modeling of the flow phenomenon determines the best (optimum) mixing channel geometry of the ejector. The detailed ejector performance characteristics are predicted by incorporating the flow model into a solar-powered ejector cycle cooling system computer model. Freon-11 is usedmore » as both the primary and secondary fluids. Performance evaluation of the cooling system is examined for its coefficient of performance (COP) under a variety of operating conditions. A study is also conducted on a modified ejector cycle in which a secondary pump is introduced at the exit of the evaporator. Results show a significant improvement in the overall performance over that of the conventional ejector cycle (without a secondary pump). Comparison between one and two-dimensional analyses indicates that the two-dimensional ejector fluid flow analysis predicts a better overall system performance. This is true for both the conventional and modified ejector cycles.« less
Effectiveness of Mathematical Word Problem Solving Interventions for Students with Learning Disabilities and Mathematics Difficulties: A Meta-Analysis

ERIC Educational Resources Information Center

Lein, Amy E.

2016-01-01

This meta-analysis synthesized the findings from 23 published and five unpublished experimental or quasi-experimental group design studies on word problem-solving instruction for K-12 students with learning disabilities (LD) and mathematics difficulties (MD). A secondary purpose of this meta-analysis was to analyze the relation between treatment…
Correlation between musical aptitude and learning foreign languages: an epidemiological study in secondary school Italian students.

PubMed

Picciotti, P M; Bussu, F; Calò, L; Gallus, R; Scarano, E; DI Cintio, G; Cassarà, F; D'Alatri, L

2018-02-01

The aim of this study was to assess if a correlation exists between language learning skills and musical aptitude through the analysis of scholarly outcomes concerning the study of foreign languages and music. We enrolled 502 students from a secondary Italian school (10-14 years old), attending both traditional courses (2 hours/week of music classes scheduled) and special courses (six hours). For statistical analysis, we considered grades in English, French and Music. Our results showed a significant correlation between grades in the two foreign languages and in music, both in the traditional courses and in special courses, and better results in French than for special courses. These results are discussed and interpreted through the literature about neuroanatomical and physiological mechanisms of foreign language learning and music perception. Copyright © 2018 Società Italiana di Otorinolaringologia e Chirurgia Cervico-Facciale, Rome, Italy.
Species specificity of symbiosis and secondary metabolism in ascidians.

PubMed

Tianero, Ma Diarey B; Kwan, Jason C; Wyche, Thomas P; Presson, Angela P; Koch, Michael; Barrows, Louis R; Bugni, Tim S; Schmidt, Eric W

2015-03-01

Ascidians contain abundant, diverse secondary metabolites, which are thought to serve a defensive role and which have been applied to drug discovery. It is known that bacteria in symbiosis with ascidians produce several of these metabolites, but very little is known about factors governing these 'chemical symbioses'. To examine this phenomenon across a wide geographical and species scale, we performed bacterial and chemical analyses of 32 different ascidians, mostly from the didemnid family from Florida, Southern California and a broad expanse of the tropical Pacific Ocean. Bacterial diversity analysis showed that ascidian microbiomes are highly diverse, and this diversity does not correlate with geographical location or latitude. Within a subset of species, ascidian microbiomes are also stable over time (R=-0.037, P-value=0.499). Ascidian microbiomes and metabolomes contain species-specific and location-specific components. Location-specific bacteria are found in low abundance in the ascidians and mostly represent strains that are widespread. Location-specific metabolites consist largely of lipids, which may reflect differences in water temperature. By contrast, species-specific bacteria are mostly abundant sequenced components of the microbiomes and include secondary metabolite producers as major components. Species-specific chemicals are dominated by secondary metabolites. Together with previous analyses that focused on single ascidian species or symbiont type, these results reveal fundamental properties of secondary metabolic symbiosis. Different ascidian species have established associations with many different bacterial symbionts, including those known to produce toxic chemicals. This implies a strong selection for this property and the independent origin of secondary metabolite-based associations in different ascidian species. The analysis here streamlines the connection of secondary metabolite to producing bacterium, enabling further biological and biotechnological studies.
Analysis of ICT Literacy Competence among Vocational High School Teachers

NASA Astrophysics Data System (ADS)

Nurhabibah; Setiawan, A.; Yanti, H.; Miraj, Y. Z.; Yannuar

2018-02-01

To realize learning quality in Vocational Secondary School, and to achieve educational goal, teacher competence is needed. The application of ICT Literacy in vocational secondary school is intended to upgrade teachers’ knowledge, skill and competence in ICT. This paper is aimed to describe the process of teachers’ competence adaptation to ICT integrity in learning in Vocational Secondary School. This study use descriptive method with literature study and documentation technique. The source in this study is research journal and research report book. The study result showed that teachers lack of self-confident in using ICT, and gender factor influence ICT integration in which the level of ICT literacy in male is higher than female. The group of young teachers aged 21-40 have higher level of ICT literacy compared with the older group. Demographic factor in ICT literacy competence are gender, education level and age. This study suggest that teachers enhance the ability in ICT literacy competence, increase their knowledge and knowledge creation in each aspect of ICT literacy competence.
The Breast-Thyroid Cancer Link: A Systematic Review and Meta-Analysis

PubMed Central

Nielsen, Sarah M.; White, Michael G.; Hong, Susan; Aschebrook-Kilfoy, Briseis; Kaplan, Edwin L.; Angelos, Peter; Kulkarni, Swati A.; Olopade, Olufunmilayo I.; Grogan, Raymon H.

2015-01-01

Rates of thyroid cancer in women with a history of breast cancer are higher than expected. Similarly, rates of breast cancer in those with a history of thyroid cancer are increased. Explanations for these associations include detection bias, shared hormonal risk factors, treatment effect, and genetic susceptibility. With increasing numbers of breast and thyroid cancer survivors clinicians should be particularly cognizant of this association. Here we perform a systematic review and meta-analysis of the literature utilizing PubMed and Scopus search engines to identify all publications studying the incidence of breast cancer as a secondary malignancy following a diagnosis of thyroid cancer or thyroid cancer following a diagnosis of breast cancer. This demonstrated an increased risk of thyroid cancer as a secondary malignancy following breast cancer (OR=1.55, 95% CI [1.44,1.67]) and an increased risk of breast cancer as a secondary malignancy following thyroid cancer (OR= 1.32, 95% CI [1.23,1.42]). There is a clear increase in the odds of developing either thyroid or breast cancer as a secondary malignancy after diagnosis with the other. Here we review this association and current hypothesis as to the cause of this correlation. PMID:26908594
How is impulsivity related to depression in adolescence? Evidence from a French validation of the cognitive emotion regulation questionnaire.

PubMed

d'Acremont, Mathieu; Van der Linden, Martial

2007-04-01

The aim of this study was to validate a French version of the Cognitive Emotion Regulation Questionnaire (CERQ; Garnefski, N., Kraaij, V., & Spinhoven, P., 2001. Negative life events, cognitive emotion regulation and emotional problems. Personality and Individual Differences, 30, 1311-1327) and to explore its relationships with impulsivity and depression. Teenagers from a junior secondary (n=107, 13-16 years) and a secondary school (n=110, 15-19 years) completed the CERQ, which assesses regulation strategies in response to negative events. The secondary school adolescents also completed the UPPS Impulsive Behavior Scale (Whiteside, S. P., & Lynam, D. R., 2001. The five factor model and impulsivity: Using a structural model of personality to understand impulsivity. Personality and Individual Differences, 30, 669-689) and the Reynolds Adolescent Depression Scale (Reynolds, W. M., 1987. Reynolds Adolescent Depression Scale: Professional manual. Odessa, FL: Psychological Assessment Resources). Factor analysis for the CERQ confirmed the presence of the nine original regulation strategies. In the secondary school students, impulsivity was related to depression. A path analysis revealed that regulation strategies mediated this relationship. The role of emotion regulation in the development of adolescent psychopathology is discussed.
The incubation period distribution of tuberculosis estimated with a molecular epidemiological approach.

PubMed

Borgdorff, Martien W; Sebek, Maruschka; Geskus, Ronald B; Kremer, Kristin; Kalisvaart, Nico; van Soolingen, Dick

2011-08-01

There is limited information on the distribution of incubation periods of tuberculosis (TB). In The Netherlands, patients whose Mycobacterium tuberculosis isolates have identical DNA fingerprints in the period 1993-2007 were interviewed to identify epidemiological links between cases. We determined the incubation period distribution in secondary cases. Survival analysis techniques were used to include secondary cases not yet symptomatic at diagnosis with weighting to adjust for lower capture probabilities of couples with longer time intervals between their diagnoses. In order to deal with missing data, we used multiple imputations. We identified 1095 epidemiologically linked secondary cases, attributed to 688 source cases with pulmonary TB. Of those developing disease within 15 years, the Kaplan-Meier probability to fall ill within 1 year was 45%, within 2 years 62% and within 5 years 83%. The incubation time was shorter in secondary cases who were men, young, those with extra-pulmonary TB and those not reporting previous TB or previous preventive therapy. Molecular epidemiological analysis has allowed a more precise description of the incubation period of TB than was possible in previous studies, including the identification of risk factors for shorter incubation periods.
External rhinoplasty: a critical analysis of 500 cases.

PubMed

Foda, Hossam M T

2003-06-01

The study presents a comprehensive statistical analysis of a series of 500 consecutive rhinoplasties of which 380 (76 per cent) were primary and 120 (24 per cent) were secondary cases. All cases were operated upon using the external rhinoplasty technique; simultaneous septal surgery was performed in 350 (70 per cent) of the cases. Deformities of the upper two-thirds of the nose that occurred significantly more in the secondary cases included; dorsal saddling, dorsal irregularities, valve collapse, open roof and pollybeak deformities. In the lower third of the nose; secondary cases showed significantly higher incidences of depressed tip, tip over-rotation, tip asymmetry, retracted columella, and alar notching. Suturing techniques were used significantly more in primary cases, while in secondary cases grafting techniques were used significantly more. The complications encountered intra-operatively included; septal flap tears (2.8 per cent) and alar cartilage injury (1.8 per cent), while post-operative complications included; nasal trauma (one per cent), epistaxis (two per cent), infection (2.4 per cent), prolonged oedema (17 per cent), and nasal obstruction (0.8 per cent). The overall patient satisfaction rate was 95.6 per cent and the transcolumellar scar was found to be unacceptable in only 0.8 per cent of the patients.
Prevalence of treponema species detected in endodontic infections: systematic review and meta-regression analysis.

PubMed

Leite, Fábio R M; Nascimento, Gustavo G; Demarco, Flávio F; Gomes, Brenda P F A; Pucci, Cesar R; Martinho, Frederico C

2015-05-01

This systematic review and meta-regression analysis aimed to calculate a combined prevalence estimate and evaluate the prevalence of different Treponema species in primary and secondary endodontic infections, including symptomatic and asymptomatic cases. The MEDLINE/PubMed, Embase, Scielo, Web of Knowledge, and Scopus databases were searched without starting date restriction up to and including March 2014. Only reports in English were included. The selected literature was reviewed by 2 authors and classified as suitable or not to be included in this review. Lists were compared, and, in case of disagreements, decisions were made after a discussion based on inclusion and exclusion criteria. A pooled prevalence of Treponema species in endodontic infections was estimated. Additionally, a meta-regression analysis was performed. Among the 265 articles identified in the initial search, only 51 were included in the final analysis. The studies were classified into 2 different groups according to the type of endodontic infection and whether it was an exclusively primary/secondary study (n = 36) or a primary/secondary comparison (n = 15). The pooled prevalence of Treponema species was 41.5% (95% confidence interval, 35.9-47.0). In the multivariate model of meta-regression analysis, primary endodontic infections (P < .001), acute apical abscess, symptomatic apical periodontitis (P < .001), and concomitant presence of 2 or more species (P = .028) explained the heterogeneity regarding the prevalence rates of Treponema species. Our findings suggest that Treponema species are important pathogens involved in endodontic infections, particularly in cases of primary and acute infections. Copyright © 2015 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
What's 'difficult'? A multi-stage qualitative analysis of secondary care specialists' experiences with medically unexplained symptoms.

PubMed

Maatz, Anke; Wainwright, Megan; Russell, Andrew J; Macnaughton, Jane; Yiannakou, Yan

2016-11-01

The term 'difficult' is pervasively used in relation to medically unexplained symptoms (MUS) and patients with MUS. This article scrutinises the use of the term by analysing interview data from a study of secondary care specialists' experiences with and attitudes towards patients suffering from MUS. Qualitative design employing semi-structured open-ended interviews systematically analysed in three stages: first, data were analysed according to the principles of content analysis. The analysis subsequently focused on the use of the term 'difficult'. Iterations of the term were extracted by summative analysis and thematic coding revealed its different meanings. Finally, alternative expressions were explored. Three NHS trust secondary care hospitals in North-East England. 17 senior clinicians from seven medical and two surgical specialities. Unsolicited use of the term 'difficult' was common. 'Difficult' was rarely used as a patient characteristic or to describe the therapeutic relationship. Participants used 'difficult' to describe their experience of diagnosing, explaining, communicating and managing these conditions and their own emotional reactions. Health care system deficits and the conceptual basis for MUS were other facets of 'difficult'. Participants also reported experiences that were rewarding and positive. This study shows that blanket statements such as 'difficult patients' mask the complexity of doctors' experiences in the context of MUS. Our nuanced analysis of the use of 'difficult' challenges preconceived attitudes. This can help counter the unreflexive perpetuation of negative evaluations that stigmatize patients with MUS, encourage greater acknowledgement of doctors' emotions, and lead to more appropriate conceptualizations and management of MUS. Copyright © 2016 Elsevier Inc. All rights reserved.

Reorganization of secondary medical care in the Israeli Defense Forces Medical Corps: A cost-effect analysis.

PubMed

Yagil, Yael; Arnon, Ronen; Ezra, Vered; Ashkenazi, Isaac

2006-12-01

To increase accessibility and availability of secondary medical care, 10 secondary unit specialist clinics were established side-by-side with five existing regional specialist centers, thus achieving decentralization. The purpose was to analyze the impact of this reorganization on overall consumption of secondary medical care and expenditures. Consumption of secondary medical care was analyzed by using computerized clinic and Medical Corps databases. Functional efficiency and budgetary expenditures were evaluated in four representative unit specialist clinics. The reorganization resulted in an 8% increase in total secondary care consumption over 2.5 years. The establishment of unit specialist clinics did not achieve increased accessibility or availability for military personnel. Functional analysis of representative unit specialist clinics showed diversity in efficiency, differences in physicians' performance, and excess expenditures. The decentralizing reorganization of secondary medical care generated an increase in medical care consumption, possibly because of supply-induced demand. The uniform inefficiency of the unit specialist clinics might have been related to incorrect planning and management. The decentralization of secondary medical care within the Israeli Defense Forces has not proved to be cost-efficient.
Characterization of Fine Particulate Matter (PM) and Secondary PM Precursor Gases in the Mexico City Metropolitan Area

DOE R&D Accomplishments Database

Molina, Luisa T.; Volkamer, Rainer; de Foy, Benjamin; Lei, Wenfang; Zavala, Miguel; Velasco, Erik; Molina; Mario J.

2008-10-31

This project was one of three collaborating grants funded by DOE/ASP to characterize the fine particulate matter (PM) and secondary PM precursors in the Mexico City Metropolitan Area (MCMA) during the MILAGRO Campaign. The overall effort of MCMA-2006, one of the four components, focused on i) examination of the primary emissions of fine particles and precursor gases leading to photochemical production of atmospheric oxidants and secondary aerosol particles; ii) measurement and analysis of secondary oxidants and secondary fine PM production, with particular emphasis on secondary organic aerosol (SOA), and iii) evaluation of the photochemical and meteorological processes characteristic of the Mexico City Basin. The collaborative teams pursued the goals through three main tasks: i) analyses of fine PM and secondary PM precursor gaseous species data taken during the MCMA-2002/2003 campaigns and preparation of publications; ii) planning of the MILAGRO Campaign and deployment of the instrument around the MCMA; and iii) analysis of MCMA-2006 data and publication preparation.
Does contraceptive treatment in wildlife result in side effects? A review of quantitative and anecdotal evidence.

PubMed

Gray, Meeghan E; Cameron, Elissa Z

2010-01-01

The efficacy of contraceptive treatments has been extensively tested, and several formulations are effective at reducing fertility in a range of species. However, these formulations should minimally impact the behavior of individuals and populations before a contraceptive is used for population manipulation, but these effects have received less attention. Potential side effects have been identified theoretically and we reviewed published studies that have investigated side effects on behavior and physiology of individuals or population-level effects, which provided mixed results. Physiological side effects were most prevalent. Most studies reported a lack of secondary effects, but were usually based on qualitative data or anecdotes. A meta-analysis on quantitative studies of side effects showed that secondary effects consistently occur across all categories and all contraceptive types. This contrasts with the qualitative studies, suggesting that anecdotal reports are insufficient to investigate secondary impacts of contraceptive treatment. We conclude that more research is needed to address fundamental questions about secondary effects of contraceptive treatment and experiments are fundamental to conclusions. In addition, researchers are missing a vital opportunity to use contraceptives as an experimental tool to test the influence of reproduction, sex and fertility on the behavior of wildlife species.
Effect of Dementia on the Use of Drugs for Secondary Prevention of Ischemic Heart Disease

PubMed Central

Fowler, Nicole R.; Barnato, Amber E.; Degenholtz, Howard B.; Curcio, Angela M.; Becker, James T.; Kuller, Lewis H.; Lopez, Oscar L.

2014-01-01

Background. Dementia and cardiovascular disease (CVD) are frequently comorbid. The presence of dementia may have an effect on how CVD is treated. Objective. To examine the effect of dementia on the use of four medications recommended for secondary prevention of ischemic heart disease (IHD): angiotensin-converting enzyme inhibitors, beta-blockers, lipid-lowering medications, and antiplatelet medications. Design. Retrospective analysis of data from the Cardiovascular Health Study: Cognition Study. Setting and Subjects. 1,087 older adults in four US states who had or developed IHD between 1989 and 1998. Methods. Generalized estimating equations to explore the association between dementia and the use of guideline-recommended medications for the secondary prevention of IHD. Results. The length of follow-up for the cohort was 8.7 years and 265 (24%) had or developed dementia during the study. Use of medications for the secondary prevention of IHD for patients with and without dementia increased during the study period. In models, subjects with dementia were not less likely to use any one particular class of medication but were less likely to use two or more classes of medications as a group (OR, 0.60; 95% CI, 0.36–0.99). Conclusions. Subjects with dementia used fewer guideline-recommended medications for the secondary prevention of IHD than those without dementia. PMID:24719764
Who is where? Characteristics of deaf and hard-of-hearing students in regular and special schools.

PubMed

Shaver, Debra M; Marschark, Marc; Newman, Lynn; Marder, Camille

2014-04-01

To address the needs and abilities of deaf and hard-of-hearing (DHH) students in different educational settings, it is important to understand who is in which setting. A secondary analysis of the National Longitudinal Transition Study 2 database was conducted to examine differences in the characteristics of students who attended special schools, such as schools for the deaf, and those who attended regular schools serving a wide variety of students, such as neighborhood, alternative, and charter schools. The study included a nationally (U.S.) representative sample of about 870 DHH secondary school students. Findings from parent interviews and surveys revealed that students who attended only special secondary schools had greater levels of hearing loss, were more likely to use sign language, had more trouble speaking and conversing with others, and were more likely to have low functional mental scores than students who had attended only regular secondary schools. There were no differences in the presence of additional disabilities or cochlear implants between students in the different settings. In many ways, student characteristics did not vary by school type, suggesting that both types of secondary schools serve students with a wide range of needs and abilities.
Effect of Secondary Jet-flow Angle on Performance of Turbine Inter-guide-vane Burner Based on Jet-vortex Flow

NASA Astrophysics Data System (ADS)

Zheng, Haifei; Tang, Hao; Xu, Xingya; Li, Ming

2014-08-01

Four different secondary airflow angles for the turbine inter-guide-vane burners with trapped vortex cavity were designed. Comparative analysis between combustion performances influenced by the variation of secondary airflow angle was carried out by using numerical simulation method. The turbulence was modeled using the Scale-Adaptive Simulation (SAS) turbulence model. Four cases with different secondary jet-flow angles (-45°, 0°, 30°, 60°) were studied. It was observed that the case with secondary jet-flows at 60° angle directed upwards (1) has good mixing effect; (2) mixing effect is the best although the flow field distributions inside both of the cavity and the main flow passage for the four models are very similar; (3) has complete combustion and symmetric temperature distribution on the exit section of guide vane (X = 70 mm), with uniform temperature distribution, less temperature gradient, and shrank local high temperature regions in the notch located on the guide vane.
IMG-ABC: A Knowledge Base To Fuel Discovery of Biosynthetic Gene Clusters and Novel Secondary Metabolites.

PubMed

Hadjithomas, Michalis; Chen, I-Min Amy; Chu, Ken; Ratner, Anna; Palaniappan, Krishna; Szeto, Ernest; Huang, Jinghua; Reddy, T B K; Cimermančič, Peter; Fischbach, Michael A; Ivanova, Natalia N; Markowitz, Victor M; Kyrpides, Nikos C; Pati, Amrita

2015-07-14

In the discovery of secondary metabolites, analysis of sequence data is a promising exploration path that remains largely underutilized due to the lack of computational platforms that enable such a systematic approach on a large scale. In this work, we present IMG-ABC (https://img.jgi.doe.gov/abc), an atlas of biosynthetic gene clusters within the Integrated Microbial Genomes (IMG) system, which is aimed at harnessing the power of "big" genomic data for discovering small molecules. IMG-ABC relies on IMG's comprehensive integrated structural and functional genomic data for the analysis of biosynthetic gene clusters (BCs) and associated secondary metabolites (SMs). SMs and BCs serve as the two main classes of objects in IMG-ABC, each with a rich collection of attributes. A unique feature of IMG-ABC is the incorporation of both experimentally validated and computationally predicted BCs in genomes as well as metagenomes, thus identifying BCs in uncultured populations and rare taxa. We demonstrate the strength of IMG-ABC's focused integrated analysis tools in enabling the exploration of microbial secondary metabolism on a global scale, through the discovery of phenazine-producing clusters for the first time in Alphaproteobacteria. IMG-ABC strives to fill the long-existent void of resources for computational exploration of the secondary metabolism universe; its underlying scalable framework enables traversal of uncovered phylogenetic and chemical structure space, serving as a doorway to a new era in the discovery of novel molecules. IMG-ABC is the largest publicly available database of predicted and experimental biosynthetic gene clusters and the secondary metabolites they produce. The system also includes powerful search and analysis tools that are integrated with IMG's extensive genomic/metagenomic data and analysis tool kits. As new research on biosynthetic gene clusters and secondary metabolites is published and more genomes are sequenced, IMG-ABC will continue to expand, with the goal of becoming an essential component of any bioinformatic exploration of the secondary metabolism world. Copyright © 2015 Hadjithomas et al.
Intimate partner violence in Mexican-American women with disabilities: a secondary data analysis of cross-language research.

PubMed

Divin, Chris; Volker, Deborah L; Harrison, Tracie

2013-01-01

The aim of this qualitative descriptive study, guided by Antonovsky's salutogenic model, was to explore the manifestations of strength within the interviews of Spanish-speaking Mexican-American women aging with mobility impairments who also experienced intimate partner violence (IPV). IPV events gleaned from 26 audiotaped interviews from 7 Spanish-speaking Mexican-American women, who ranged in age from 55 to 75 years, constituted the sample for this secondary analysis. Five categories were identified: abuse from early on that shaped sense of coherence; violencia tan cruel--threatened sense of coherence; "salutogenic" choices within the context of IPV; a quest for peace; and strength amid struggle.
Intimate Partner Violence in Mexican-American Women with Disabilities: A Secondary Data Analysis of Cross-Language Research

PubMed Central

Divin, Chris; Volker, Deborah L.; Harrison, Tracie

2013-01-01

The aim of this qualitative descriptive study, guided by Antonovosky’s Salutogenic model, was to explore the manifestations of strength within the interviews of Spanish-speaking Mexican-American women aging with mobility impairments who also experienced intimate partner violence (IPV). IPV events gleaned from 26 audiotaped interviews from 7 Spanish-speaking Mexican-American women, who ranged in age from 55–75, constituted the sample for this secondary analysis. Five categories were identified: Abuse from early on that shaped sense of coherence; “Violencia tan cruel”: Threatened sense of coherence; “Salutogenic” choices within the context of IPV; A quest for peace; and Strength amidst struggle. PMID:23907305
Use of antihypertensive medications and diagnostic tests among privately insured adolescents and young adults with primary versus secondary hypertension.

PubMed

Yoon, Esther Y; Cohn, Lisa; Freed, Gary; Rocchini, Albert; Kershaw, David; Ascione, Frank; Clark, Sarah

2014-07-01

To compare the use of antihypertensive medications and diagnostic tests among adolescents and young adults with primary versus secondary hypertension. We conducted retrospective cohort analysis of claims data for adolescents and young adults (12-21 years of age) with ≥3 years of insurance coverage (≥11 months/year) in a large private managed care plan during 2003-2009 with diagnosis of primary hypertension or secondary hypertension. We examined their use of antihypertensive medications and identified demographic characteristics and the presence of obesity-related comorbidities. For the subset receiving antihypertensive medications, we examined their diagnostic test use (echocardiograms, renal ultrasounds, and electrocardiograms). The study sample included 1,232 adolescents and young adults; 84% had primary hypertension and 16% had secondary hypertension. The overall prevalence rate of hypertension was 2.6%. One quarter (28%) with primary hypertension had one or more antihypertensive medications, whereas 65% with secondary hypertension had one or more antihypertensive medications. Leading prescribers of antihypertensives for subjects with primary hypertension were primary care physicians (80%), whereas antihypertensive medications were equally prescribed by primary care physicians (43%) and sub-specialists (37%) for subjects with secondary hypertension. The predominant hypertension diagnosis among adolescents and young adults is primary hypertension. Antihypertensive medication use was higher among those with secondary hypertension compared with those with primary hypertension. Further study is needed to determine treatment effectiveness and patient outcomes associated with differential treatment patterns used for adolescents and young adults with primary versus secondary hypertension. Copyright © 2014 Society for Adolescent Health and Medicine. Published by Elsevier Inc. All rights reserved.
Social Capital and Adolescents Mathematics Achievement: A Comparative Analysis of Eight European Cities

ERIC Educational Resources Information Center

Gisladottir, Berglind

2013-01-01

This study examines the impact of social capital on mathematics achievement in eight European cities. The study draws on data from the 2008 Youth in Europe survey, carried out by the Icelandic Center for Social Research and Analysis. The sample contains responses from 17,312 students in 9th and 10th grade of local secondary schools in the…
Acquisition of Maternal Education and Its Relation to Single-Word Reading in Middle Childhood: An Analysis of the Millennium Cohort Study

ERIC Educational Resources Information Center

King, Thomas; McKean, Cristina; Rush, Robert; Westrupp, Elizabeth M.; Mensah, Fiona K.; Reilly, Sheena; Law, James

2017-01-01

Maternal education captured at a single time point is commonly employed as a predictor of a child's cognitive development. In this article, we ask what bearing the acquisition of additional qualifications has upon reading performance in middle childhood. This was a secondary analysis of the United Kingdom's Millennium Cohort Study, a cohort of…
Unexpected role of activated carbon in promoting transformation of secondary amines to N-nitrosamines.

PubMed

Padhye, Lokesh; Wang, Pei; Karanfil, Tanju; Huang, Ching-Hua

2010-06-01

Activated carbon (AC) is the most common solid phase extraction material used for analysis of nitrosamines in water. It is also widely used for the removal of organics in water treatment and as a catalyst or catalyst support in some industrial applications. In this study, it was discovered that AC materials can catalyze transformation of secondary amines to yield trace levels of N-nitrosamines under ambient aerobic conditions. All 11 commercial ACs tested in the study formed nitrosamines from secondary amines. Among the different ACs, the N-nitrosodimethylamine (NDMA) yield at pH 7.5 ranged from 0.001% to 0.01% of initial amount of aqueous dimethylamine (DMA) concentration, but at 0.05-0.29% of the amount of adsorbed DMA by AC. Nitrosamine yield increased with higher pH and for higher molecular weight secondary amines, probably because of increased adsorption of amines. Presence of oxygen was a critical factor in the transformation of secondary amines, since ACs with adsorbed secondary amines dried under air for longer period of time exhibited significantly higher nitrosamine yields. The AC-catalyzed nitrosamine formation was also observed in surface water and wastewater effluent samples. Properties of AC play an important role in the nitrosamine yields. Preliminary evaluation indicated that nitrosamine formation was higher on reduced than oxidized AC surfaces. Overall, the study results show that selecting ACs and reaction conditions are important to minimize analytical errors and undesirable formation associated with nitrosamines in water samples.
Diagnosis of adrenal insufficiency.

PubMed

Dorin, Richard I; Qualls, Clifford R; Crapo, Lawrence M

2003-08-05

The cosyntropin stimulation test is the initial endocrine evaluation of suspected primary or secondary adrenal insufficiency. To critically review the utility of the cosyntropin stimulation test for evaluating adrenal insufficiency. The MEDLINE database was searched from 1966 to 2002 for all English-language papers related to the diagnosis of adrenal insufficiency. Studies with fewer than 5 persons with primary or secondary adrenal insufficiency or with fewer than 10 persons as normal controls were excluded. For secondary adrenal insufficiency, only studies that stratified participants by integrated tests of adrenal function were included. Summary receiver-operating characteristic (ROC) curves were generated from all studies that provided sensitivity and specificity data for 250-microg and 1-microg cosyntropin tests; these curves were then compared by using area under the curve (AUC) methods. All estimated values are given with 95% CIs. At a specificity of 95%, sensitivities were 97%, 57%, and 61% for summary ROC curves in tests for primary adrenal insufficiency (250-microg cosyntropin test), secondary adrenal insufficiency (250-microg cosyntropin test), and secondary adrenal insufficiency (1-microg cosyntropin test), respectively. The area under the curve for primary adrenal insufficiency was significantly greater than the AUC for secondary adrenal insufficiency for the high-dose cosyntropin test (P < 0.001), but AUCs for the 250-microg and 1-microg cosyntropin tests did not differ significantly (P > 0.5) for secondary adrenal insufficiency. At a specificity of 95%, summary ROC analysis for the 250-microg cosyntropin test yielded a positive likelihood ratio of 11.5 (95% CI, 8.7 to 14.2) and a negative likelihood ratio of 0.45 (CI, 0.30 to 0.60) for the diagnosis of secondary adrenal insufficiency. Cortisol response to cosyntropin varies considerably among healthy persons. The cosyntropin test performs well in patients with primary adrenal insufficiency, but the lower sensitivity in patients with secondary adrenal insufficiency necessitates use of tests involving stimulation of the hypothalamus if the pretest probability is sufficiently high. The operating characteristics of the 250-microg and 1-microg cosyntropin tests are similar.
Secondary prevention of stroke in Saskatchewan, Canada: hypertension control.

PubMed

Bartsch, Janelle Ann; Teare, Gary F; Neufeld, Anne; Hudema, Nedeene; Muhajarine, Nazeem

2013-10-01

In the province of Saskatchewan, Canada, stroke is the third leading cause of death as well as the major cause of adult disability. Once a person suffers a stroke or transient ischemic attack (TIA), they are at high risk for having a secondary stroke. Hypertension (elevated blood pressure) is the single most important modifiable risk factor for both first and recurrent stroke, and is thus an important risk factor to be controlled. According to the Canadian Stroke Strategy (CSS) Best Practice Recommendations, blood pressure lowering treatment should be initiated before discharge from hospital for all stroke/TIA patients. The purpose of this study was to examine the quality of medically driven secondary stroke prevention care in Saskatchewan as applied to hypertension control. The objectives of the study were to: (1) develop methodology and calculate a secondary stroke process of care measure using available data in Saskatchewan, based on an appropriate hypertension therapy indicator recommendation from the CSS Performance Measurement Manual; (2) examine variation in secondary stroke prevention hypertensive care among the Saskatchewan Regional Health Authorities; and (3) investigate factors associated with receiving evidence-based hypertensive secondary stroke prevention. This multi-year cross-sectional study was an analysis of deidentified health data derived from linkage of administrative health data. A select indicator from the CSS Performance Measurement Manual that measures adherence to a CSS Best Practice Guidelines concerning use of antihypertensive medications for secondary stroke prevention was calculated. Logistic regression was used to quantify the association of patient demographic and socioeconomic characteristics and geographic location of care with receipt of guideline-recommended hypertensive secondary stroke prevention. The target population was all Saskatchewan residents who were hospitalized in Saskatchewan for a stroke or TIA between April 1, 2001 and March 31, 2008. The results of this study indicate that the management of hypertension for secondary stroke prevention is sub-optimal in Saskatchewan. Although there was some improvement over the time period, approximately 40% of patients were not taking antihypertensives at 90 days after discharge from acute care. The correlates, urban/non-urban, previous use of antihypertensive drugs and effect of age modified by sex, were found to be significantly associated with receiving hypertensive secondary stroke prevention, suggesting there are modifiable factors that contribute to variations in this form of secondary stroke care quality in Saskatchewan. The results of this study suggest that there is a need for province-wide improvement to secondary stroke prevention in Saskatchewan, Canada. © 2012 The Authors. International Journal of Stroke © 2012 World Stroke Organization.
Athletic Trainer Services in US Private Secondary Schools.

PubMed

Pike, Alicia; Pryor, Riana R; Mazerolle, Stephanie M; Stearns, Rebecca L; Casa, Douglas J

2016-09-01

Availability of athletic trainer (AT) services in US secondary schools has recently been reported to be as high as 70%, but this only describes the public sector. The extent of AT coverage in private secondary school settings has yet to be investigated and may differ from the public secondary school setting for several reasons, including differences in funding sources. To determine the level of AT services in US private secondary schools and identify the reasons why some schools did not employ ATs. Concurrent mixed-methods study. Private secondary schools in the United States. Of 5414 private secondary schools, 2044 (38%) responded to the survey. School administrators responded to the survey via telephone or e-mail. This instrument was previously used in a study examining AT services among public secondary schools. Descriptive statistics provided national data. Open-ended questions were evaluated through content analysis. Of the 2044 schools that responded, 58% (1176/2044) offered AT services, including 28% (574/2040) full time, 25% (501/2042) part time, 4% (78/1918) per diem, and 20% (409/2042) from a hospital or clinic. A total of 84% (281 285/336 165) of athletes had access to AT services. Larger private secondary schools were more likely to have AT services available. Barriers to providing AT services in the private sector were budgetary constraints, school size and sports, and lack of awareness of the role of an AT. More than half of the surveyed private secondary schools in the United States had AT services available; however, only 28% had a full-time AT. This demonstrates the need for increased medical coverage to provide athletes in this setting the appropriate level of care. Budgetary concerns, size of the school and sport offerings, and lack of awareness of the role of the AT continued to be barriers in the secondary school setting.
Athletic Trainer Services in US Private Secondary Schools

PubMed Central

Pike, Alicia; Pryor, Riana R.; Mazerolle, Stephanie M.; Stearns, Rebecca L.; Casa, Douglas J.

2016-01-01

Context: Availability of athletic trainer (AT) services in US secondary schools has recently been reported to be as high as 70%, but this only describes the public sector. The extent of AT coverage in private secondary school settings has yet to be investigated and may differ from the public secondary school setting for several reasons, including differences in funding sources. Objective: To determine the level of AT services in US private secondary schools and identify the reasons why some schools did not employ ATs. Design: Concurrent mixed-methods study. Setting: Private secondary schools in the United States. Patients or Other Participants: Of 5414 private secondary schools, 2044 (38%) responded to the survey. Main Outcome Measure(s): School administrators responded to the survey via telephone or e-mail. This instrument was previously used in a study examining AT services among public secondary schools. Descriptive statistics provided national data. Open-ended questions were evaluated through content analysis. Results: Of the 2044 schools that responded, 58% (1176/2044) offered AT services, including 28% (574/2040) full time, 25% (501/2042) part time, 4% (78/1918) per diem, and 20% (409/2042) from a hospital or clinic. A total of 84% (281 285/336 165) of athletes had access to AT services. Larger private secondary schools were more likely to have AT services available. Barriers to providing AT services in the private sector were budgetary constraints, school size and sports, and lack of awareness of the role of an AT. Conclusions: More than half of the surveyed private secondary schools in the United States had AT services available; however, only 28% had a full-time AT. This demonstrates the need for increased medical coverage to provide athletes in this setting the appropriate level of care. Budgetary concerns, size of the school and sport offerings, and lack of awareness of the role of the AT continued to be barriers in the secondary school setting. PMID:27749083
Hwyneeds : a sensitivity analysis

DOT National Transportation Integrated Search

2000-01-01

County highway needs identified in Iowa's Quadrennial Needs Study are used to determine the amount of funding allocated to each Iowa county for secondary highway improvements. The Iowa Department of Transportation uses a computer algorithm called HWY...
Looking/Learning Drawing: Trees.

ERIC Educational Resources Information Center

Hurwitz, Al; Blume, Sharon

1985-01-01

Secondary students are asked to study and compare three reproductions--Van Gogh's "Grove of Cypresses," Da Vinci's "Study of a Tree," and Mondrian's "Tree II." The activity will help students develop their powers of observation and analysis, powers that can be applied to their own drawings. (RM)
Database Creation and Statistical Analysis: Finding Connections Between Two or More Secondary Storage Device

DTIC Science & Technology

2017-09-01

NAVAL POSTGRADUATE SCHOOL MONTEREY, CALIFORNIA THESIS DATABASE CREATION AND STATISTICAL ANALYSIS: FINDING CONNECTIONS BETWEEN TWO OR MORE SECONDARY...BLANK ii Approved for public release. Distribution is unlimited. DATABASE CREATION AND STATISTICAL ANALYSIS: FINDING CONNECTIONS BETWEEN TWO OR MORE...Problem and Motivation . . . . . . . . . . . . . . . . . . . 1 1.2 DOD Applicability . . . . . . . . . . . . . . . . .. . . . . . . 2 1.3 Research

Effectiveness of Secondary Pregnancy Prevention Programs: A Meta-Analysis

ERIC Educational Resources Information Center

Corcoran, Jacqueline; Pillai, Vijayan K.

2007-01-01

Because subsequent pregnancy in teen parents often worsens the impact of adolescent parenting; therefore, a common goal of teenage parent programs has been to reduce repeat pregnancy. To examine the impact of this goal, a meta-analysis was conducted on 16 control-comparison group studies that evaluated the effect of teenage pregnancy and parenting…
"Development in Reverse?" A Longitudinal Analysis of Armed Conflict, Fragility and School Enrolment

ERIC Educational Resources Information Center

Shields, Robin; Paulson, Julia

2015-01-01

This paper presents a longitudinal analysis of cross-national data on armed conflict, state fragility, and enrolment in primary and secondary schooling. The study is motivated by questions raised in the 2012 "Human Security Report," which challenges the widely held assumption that conflict is necessarily detrimental to educational…
Technologies for Teaching and Learning about Box Plots and Statistical Analysis

ERIC Educational Resources Information Center

Forster, Patricia A.

2007-01-01

This paper analyses technology-based instruction on data-analysis with box plots. Examples of instruction taken from the research literature inform a study of two classes of 17 year-old students (upper secondary) in which the mathematical relationships that their teachers targeted are distinguished as being, or not being, relevant to statistical…
Factors Predictive of Mathematics Achievement in Kindergarten, First and Third Grades: An Opportunity-Propensity Analysis

ERIC Educational Resources Information Center

Byrnes, James P.; Wasik, Barbara A.

2009-01-01

A secondary analysis of the Early Childhood Longitudinal Study-Kindergarten Sample (N = 17,401) was conducted to determine the factors that are most strongly associated with math achievement during kindergarten, first grade, and third grade. Factors from the following three categories were considered: antecedent factors (e.g., family…
A comprehensive review of glycosylated bacterial natural products

PubMed Central

Elshahawi, Sherif I.; Shaaban, Khaled A.; Kharel, Madan K.

2015-01-01

A systematic analysis of all naturally-occurring glycosylated bacterial secondary metabolites reported in the scientific literature up through early 2013 is presented. This comprehensive analysis of 15 940 bacterial natural products revealed 3426 glycosides containing 344 distinct appended carbohydrates and highlights a range of unique opportunities for future biosynthetic study and glycodiversification efforts. PMID:25735878
Korean EFL Teachers' Perceptions of the Impact of EFL Teacher Education upon Their Classroom Teaching Practices

ERIC Educational Resources Information Center

Yook, Cheongmin; Lee, Yong-hun

2016-01-01

This study employed qualitative data collection and analysis methods to investigate the influence of English as a foreign language teacher education programme on Korean teachers' classroom teaching practices. Six in-service secondary-school teachers participated in semi-structured interviews. Thematic analysis was applied to the data collected…
Reporting of Child Maltreatment: A Secondary Analysis of the National Incidence Surveys.

ERIC Educational Resources Information Center

Ards, Sheila; Harrell, Adele

1993-01-01

Data from the National Study of the Incidence and Prevalence of Child Abuse and Neglect were analyzed concerning kinds of cases underreported, overreported, or not reported. The analysis examined age, family income, sex, race, urban or rural, and type of abuse from sexual abuse to educational neglect. (JDD)
Can Smoking Cessation Services Be Better Targeted to Tackle Health Inequalities? Evidence from a Cross-Sectional Study

ERIC Educational Resources Information Center

Blackman, Tim

2008-01-01

Objective: To investigate how smoking cessation services could be more effectively targeted to tackle socioeconomic inequalities in health. Design: Secondary analysis of data from a household interview survey undertaken for Middlesbrough Council in north east England using the technique of Qualitative Comparative Analysis. Setting: Home-based…
Revenue-Generating Language Programs at Canadian Post-Secondary Institutions: Emerging Themes from a Documentation Analysis

ERIC Educational Resources Information Center

Eaton, Sarah Elaine; Goddard, J. Tim

2008-01-01

This presentation identifies emerging themes in a study combining documentation analysis (Atkinson & Coffey, 2004) and interviews that examine policy statements, promotional materials and various institutional documents from selected English as a Second Language (ESL) programs at one Canadian University. It looks at how and why ESL programs…
The SIMS trial: adjustable anchored single-incision mini-slings versus standard tension-free midurethral slings in the surgical management of female stress urinary incontinence. A study protocol for a pragmatic, multicentre, non-inferiority randomised controlled trial

PubMed Central

Abdel-Fattah, Mohamed; MacLennan, Graeme; Kilonzo, Mary; Assassa, R Phil; McCormick, Kirsty; Davidson, Tracey; McDonald, Alison; N’Dow, James; Wardle, Judith; Norrie, John

2017-01-01

Introduction Single-incision mini-slings (SIMS) represent the third generation of midurethral slings. They have been developed with the aim of offering a true ambulatory procedure for treatment of female stress urinary incontinence (SUI) with reduced morbidity and earlier recovery while maintaining similar efficacy to standard midurethral slings (SMUS). The aim of this study is to determine the clinical and cost-effectiveness of adjustable anchored SIMS compared with tension-free SMUS in the surgical management of female SUI, with 3-year follow-up. Methods and analysis A pragmatic, multicentre, non-inferiority randomised controlled trial. Primary outcome measure The primary outcome measure is the patient-reported success rate measured by the Patient Global Impression of Improvement at 12 months. The primary economic outcome will be incremental cost per quality-adjusted life year gained at 12 months. Secondary outcome measures The secondary outcomes measures include adverse events, objective success rates, impact on other lower urinary tract symptoms, health-related quality of life profile and sexual function, and reoperation rates for SUI. Secondary economic outcomes include National Health Service and patient primary and secondary care resource use and costs, incremental cost-effectiveness and incremental net benefit. Statistical analysis The statistical analysis of the primary outcome will be by intention-to-treat and also a per-protocol analysis. Results will be displayed as estimates and 95% CIs. CIs around observed differences will then be compared with the prespecified non-inferiority margin. Secondary outcomes will be analysed similarly. Ethics and dissemination The North of Scotland Research Ethics Committee has approved this study (13/NS/0143). The dissemination plans include HTA monograph, presentation at international scientific meetings and publications in high-impact, open-access journals. The results will be included in the updates of the National Institute for Health and Care Excellence and the European Association of Urology guidelines; these two specific guidelines directly influence practice in the UK and worldwide specialists, respectively. In addition, plain English-language summary of the main findings/results will be presented for relevant patient organisations. Trial registration number ISRCTN93264234. The SIMS study is currently recruiting in 20 UK research centres. The first patient was randomised on 4 February 2014, with follow-up to be completed at the end of February 2020. PMID:28801396
In-Hospital Recruitment to Observational Studies of Stroke

ERIC Educational Resources Information Center

Pickering, Ruth M.; Kunkel, Dorit; Fitton, Carolyn; Ashburn, Ann; Jenkinson, Damian

2010-01-01

The objective of this study was to examine recruitment in three observational follow-up studies of patients with stroke, focusing on reasons for nonparticipation and the role of potential factors in explaining recruitment rates. It comprised secondary analysis of the three studies. Recruitment rates varied between the studies. Between 10 and 50%…
V380 Dra: New short-period totally eclipsing active binary

NASA Astrophysics Data System (ADS)

Özdarcan, O.

2014-02-01

In this study, first complete and standard BVR light curves and photometric analysis of the eclipsing binary system V380 Dra are presented. Photometric analysis result indicates that the system has components which are cool main sequence stars. In light and color curves, remarkable asymmetry is observed, especially after secondary minimum, which is believed to be a result of chromospheric activity in one or both components. O-C diagram of available small number of eclipse times, together with new eclipse timings in this work, exhibits no significant variation. Preliminary light curve solution shows that the secondary minimum is total eclipse. By using the advantage of total eclipse and mass-luminosity relation, it is found that the system has a possible mass ratio of q = 0.81. First estimation of masses and radii of primary and secondary components are M1 = 0.77 M⊙,M2 = 0.62 M⊙ and R1 = 0.93 R⊙,R2 = 0.77 R⊙, respectively.
An application of data mining in district heating substations for improving energy performance

NASA Astrophysics Data System (ADS)

Xue, Puning; Zhou, Zhigang; Chen, Xin; Liu, Jing

2017-11-01

Automatic meter reading system is capable of collecting and storing a huge number of district heating (DH) data. However, the data obtained are rarely fully utilized. Data mining is a promising technology to discover potential interesting knowledge from vast data. This paper applies data mining methods to analyse the massive data for improving energy performance of DH substation. The technical approach contains three steps: data selection, cluster analysis and association rule mining (ARM). Two-heating-season data of a substation are used for case study. Cluster analysis identifies six distinct heating patterns based on the primary heat of the substation. ARM reveals that secondary pressure difference and secondary flow rate have a strong correlation. Using the discovered rules, a fault occurring in remote flow meter installed at secondary network is detected accurately. The application demonstrates that data mining techniques can effectively extrapolate potential useful knowledge to better understand substation operation strategies and improve substation energy performance.
Molecule-Specific Imaging Analysis of Carcinogens in Breast Cancer Cells Using Time-of-Flight Secondary Ion Mass Spectrometry

DOE Office of Scientific and Technical Information (OSTI.GOV)

Quong, J N; Knize, M G; Kulp, K S

2003-08-19

Imaging time-of-flight secondary ion mass spectrometry (TOF-SIMS) is used to study the localization of heterocyclic amines in MCF7 line of human breast cancer cells. The detection sensitivities of a model rodent mutagen, 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) were determined. Following an established criteria for the determination of status of freeze-fracture cells, the distribution of PhIP in the MCF7 cells are reported.
An Analysis of Teaching Competencies of Secondary Educators: Do Teachers and Administrators Agree on What Is Important?

ERIC Educational Resources Information Center

Williams, Wayne

As part of a Funds for the Improvement of Post Secondary Education (FIPSE) grant, the Department of Curriculum and Instruction at Central Missouri State University is redesigning its 28-hour Secondary Professional Sequence (required for secondary education majors). The department identified and developed 45 teaching competencies reflecting 7…
antiSMASH: rapid identification, annotation and analysis of secondary metabolite biosynthesis gene clusters in bacterial and fungal genome sequences.

PubMed

Medema, Marnix H; Blin, Kai; Cimermancic, Peter; de Jager, Victor; Zakrzewski, Piotr; Fischbach, Michael A; Weber, Tilmann; Takano, Eriko; Breitling, Rainer

2011-07-01

Bacterial and fungal secondary metabolism is a rich source of novel bioactive compounds with potential pharmaceutical applications as antibiotics, anti-tumor drugs or cholesterol-lowering drugs. To find new drug candidates, microbiologists are increasingly relying on sequencing genomes of a wide variety of microbes. However, rapidly and reliably pinpointing all the potential gene clusters for secondary metabolites in dozens of newly sequenced genomes has been extremely challenging, due to their biochemical heterogeneity, the presence of unknown enzymes and the dispersed nature of the necessary specialized bioinformatics tools and resources. Here, we present antiSMASH (antibiotics & Secondary Metabolite Analysis Shell), the first comprehensive pipeline capable of identifying biosynthetic loci covering the whole range of known secondary metabolite compound classes (polyketides, non-ribosomal peptides, terpenes, aminoglycosides, aminocoumarins, indolocarbazoles, lantibiotics, bacteriocins, nucleosides, beta-lactams, butyrolactones, siderophores, melanins and others). It aligns the identified regions at the gene cluster level to their nearest relatives from a database containing all other known gene clusters, and integrates or cross-links all previously available secondary-metabolite specific gene analysis methods in one interactive view. antiSMASH is available at http://antismash.secondarymetabolites.org.
Consequences of Decontamination Procedures in Forensic Hair Analysis Using Metal-Assisted Secondary Ion Mass Spectrometry Analysis.

PubMed

Cuypers, Eva; Flinders, Bryn; Boone, Carolien M; Bosman, Ingrid J; Lusthof, Klaas J; Van Asten, Arian C; Tytgat, Jan; Heeren, Ron M A

2016-03-15

Today, hair testing is considered to be the standard method for the detection of chronic drug abuse. Nevertheless, the differentiation between systemic exposure and external contamination remains a major challenge in the forensic interpretation of hair analysis. Nowadays, it is still impossible to directly show the difference between external contamination and use-related incorporation. Although the effects of washing procedures on the distribution of (incorporated) drugs in hair remain unknown, these decontamination procedures prior to hair analysis are considered to be indispensable in order to exclude external contamination. However, insights into the effect of decontamination protocols on levels and distribution of drugs incorporated in hair are essential to draw the correct forensic conclusions from hair analysis; we studied the consequences of these procedures on the spatial distribution of cocaine in hair using imaging mass spectrometry. Additionally, using metal-assisted secondary ion mass spectrometry, we are the first to directly show the difference between cocaine-contaminated and user hair without any prior washing procedure.
Comparative Analysis of Academic Grades in Compulsory Secondary Education in Spain Using Statistical Techniques

ERIC Educational Resources Information Center

Veas, Alejandro; Gilar, Raquel; Miñano, Pablo; Castejón, Juan Luis

2017-01-01

The present study, based on the construct comparability approach, performs a comparative analysis of general points average for seven courses, using exploratory factor analysis (EFA) and the Partial Credit model (PCM) with a sample of 1398 student subjects (M = 12.5, SD = 0.67) from 8 schools in the province of Alicante (Spain). EFA confirmed a…
Treatment Components and Their Relationships with Drug and Alcohol Abstinence.

ERIC Educational Resources Information Center

Orwin, Rob; Ellis, Bruce

This study evaluates the effect of treatment components through a secondary analysis of data from the National Treatment Improvement Evaluation Study (NTIES). The study examines the relationship between treatment components, client-level factors, and treatment outcomes, and how these relationships vary by treatment modality. It seeks to understand…
Developing a Mathematics Education Quality Scale

ERIC Educational Resources Information Center

Ciftci, S. Koza; Karadag, Engin

2016-01-01

The aim of this study was to evaluate students' perceptions of the quality of mathematics education and to develop a reliable and valid measurement tool. The research was conducted with 638 (first study) and 407 (second study) secondary school students in Eskisehir, Turkey. Item discrimination, structural validity (exploratory factor analysis and…

Gender and Pupil Performance. Interchange 70.

ERIC Educational Resources Information Center

Tinklin, Teresa; Croxford, Linda; Ducklin, Alan; Frame, Barbara

This study examined factors that influence the relative academic attainment of males and females and how good performance by both genders can be achieved. The study involved a review of literature and policy documents, statistical analysis of official data, a questionnaire survey of local authorities, and case studies of six secondary schools in…
Students' Beliefs and Experiences of Interdisciplinary Learning

ERIC Educational Resources Information Center

Zhan, Ying; So, Winnie Wing Mui; Cheng, Irene Nga Yee

2017-01-01

This study explored senior secondary students' beliefs and experiences of learning an interdisciplinary curriculum, Liberal Studies, in Hong Kong. Through the analysis of focus-group interviews with 168 students, most of the students were found to enjoy or at least not resist interdisciplinary learning, and preferred to study real-world…
Planned secondary wound closure at the circular stapler insertion site after laparoscopic gastric bypass reduces postoperative morbidity, costs, and hospital stay.

PubMed

Vetter, Diana; Raptis, Dimitri Aristotle; Giama, Mira; Hosa, Hanna; Muller, Markus K; Nocito, Antonio; Schiesser, Marc; Moos, Rudolf; Bueter, Marco

2017-12-01

The aims of the present study were to assess whether planned secondary wound closure at the insertion site of the circular stapler reduces wound infection rate and postoperative morbidity after laparoscopic Roux-en-Y gastric bypass (RYGB) and to identify independent predictive factors increasing the risk for wound infections after RYGB. This paper is a retrospective single-center analysis of a prospectively collected database of 1400 patients undergoing RYGB surgery in circular technique between June 2000 and June 2016. Planned secondary wound closure at the circular stapler introduction site was performed at postoperative day 3 in 291 (20.8%) consecutive patients and compared to a historical control of 1109 (79.2%) consecutive patients with primary wound closure. Independent predictive factors for wound infection were assessed by multivariable analysis. Secondary wound closure significantly decreased wound infection rate from 9.3% (103/1109) to 1% (3/291) (p < 0.001) leading to a shorter hospital stay (mean 9 (SD8) vs. 7 days (SD2), p < 0.001), lower costs (p = 0.039), and reduced postoperative morbidity (mean 90-day Comprehensive Complication Index (CCI) 7.4 (SD14.0) vs. 5.1 (SD11.1) p = 0.008) when compared to primary wound closure. Primary wound closure, dyslipidemia, and preoperative gastritis were independent predictive risk factors for developing wound infections both in the univariate (p < 0.001; p = 0.048; p = 0.003) and multivariable analysis (p < 0.001; p = 0.040; p = 0.012). Further, on multivariable analysis, the female gender was a predictive factor (p = 0.034) for wound infection development. Secondary wound closure at the circular stapler introduction site in laparoscopic RYGB significantly reduces the overall wound infection rate as well as postoperative morbidity, costs, and hospital stay when compared to primary wound closure.
Dabigatran for the Treatment and Secondary Prevention of Venous Thromboembolism; A Cost-Effectiveness Analysis for the Netherlands.

PubMed

Stevanović, J; de Jong, L A; Kappelhoff, B S; Dvortsin, E P; Voorhaar, M; Postma, M J

2016-01-01

Dabigatran was proven to have similar effect on the prevention of recurrence of venous thromboembolism (VTE) and a lower risk of bleeding compared to vitamin K antagonists (VKA). The aim of this study is to assess the cost-effectiveness (CE) of dabigatran for the treatment and secondary prevention in patients with VTE compared to VKAs in the Dutch setting. Previously published Markov model was modified and updated to assess the CE of dabigatran and VKAs for the treatment and secondary prevention in patients with VTE from a societal perspective in the base-case analysis. The model was populated with efficacy and safety data from major dabigatran trials (i.e. RE-COVER, RECOVER II, RE-MEDY and RE-SONATE), Dutch specific costs, and utilities derived from dabigatran trials or other published literature. Univariate, probabilistic sensitivity and a number of scenario analyses evaluating various decision-analytic settings (e.g. the perspective of analysis, use of anticoagulants only for treatment or only for secondary prevention, or comparison to no treatment) were tested on the incremental cost-effectiveness ratio (ICER). In the base-case scenario, patients on dabigatran gained an additional 0.034 quality adjusted life year (QALY) while saving €1,598. Results of univariate sensitivity analysis were quite robust. The probability that dabigatran is cost-effective at a willingness-to-pay threshold of €20,000/QALY was 98.1%. From the perspective of healthcare provider, extended anticoagulation with dabigatran compared to VKAs was estimated at €2,158 per QALY gained. The ICER for anticoagulation versus no treatment in patients with equipoise risk of recurrent VTE was estimated at €33,379 per QALY gained. Other scenarios showed dabigatran was cost-saving. From a societal perspective, dabigatran is likely to be a cost-effective or even cost-saving strategy for treatment and secondary prevention of VTE compared to VKAs in the Netherlands.
Serious conditions for ED elderly fall patients: a secondary analysis of the Basel Non-Specific Complaints study.

PubMed

Liu, Shan W; Sri-On, Jiraporn; Tirrell, Gregory Philip; Nickel, Christian; Bingisser, Roland

2016-08-01

Falls among older adults are a public health problem and are multifactorial. We sought to determine whether falls predict more serious conditions in older adult patients presenting to the emergency department (ED) with a "nonspecific complaint" (NSC). A secondary objective was to examine what factors predicted serious conditions among older adult patients with a fall. This study was a secondary analysis of a prospective delayed-type cross-sectional diagnostic study that included a 30-day follow-up. We included patients 65 years and older who presented to the ED from May 2007 and July 2011 with a NSC and had an Emergency Severity Index score of 2 or 3. We then compared the serious conditions among older adults who presented to the ED with a fall with those who did not fall in a cohort of patients with NSC. We had 1111 patients enrolled in our study; 518 (47%) of them had fallen. We found that 310 (60%) of elderly fall patients vs 349 (59%) of nonfall patients had a 30-day serious condition (P=.74). In multiple logistic regression analysis, falls did not predict serious conditions or 30-day mortality among all NSC patients. Among fall patients, male sex, diuretic use, and generalized weakness predicted serious conditions. Fall patients share many features with nonfall NSC patient. However, falls did not increase the risk of serious conditions. Falls in the elderly could be considered under the broader entity of NSC. Copyright © 2016 Elsevier Inc. All rights reserved.
Fish faunal provinces of the conterminous United States of America reflect historical geography and familial composition.

PubMed

Matamoros, Wilfredo A; Hoagstrom, Christopher W; Schaefer, Jacob F; Kreiser, Brian R

2016-08-01

Although the conterminous USA has a long history of ichthyological exploration, the description of biogeographical provinces has been ad hoc. In this study we quantitatively determined fish faunal provinces and interpreted them in the context of the geological history of North America. We also evaluated influences of major river basin occupancy and contemporary environmental factors on provincial patterns. Our data set comprised 794 native fishes, which we used to generate a presence and absence matrix for U.S. Geological Survey (USGS) four-digit hydrologic units. Three nested data sets were analysed separately: primary freshwater families, continental freshwater families (including primary and secondary families) and all freshwater families (including primary, secondary and peripheral families). We used clustering analysis to delimit faunal breaks and one-way analysis of similarity (ANOSIM) to determine significance among clusters (i.e. provinces). We used an indicator-species analysis to identify species that contributed most to province delineations and a similarity-percentage (SIMPER) analysis to describe the relative influence of representatives from each category (i.e. primary, secondary, peripheral) on provincial boundaries. Lastly, we used a parsimony redundancy analysis to determine the roles of historical (i.e. major river basin) and contemporary environmental factors in shaping provinces. Analysis of the nested data sets revealed lessening provincial structure with inclusion of more families. There were 10 primary freshwater provinces, 9 continental freshwater provinces and 7 all freshwater provinces. Major basin occupancy, but not contemporary environmental factors, explained substantial variance in faunal similarities among provinces. However, provincial boundaries did not conform strictly to modern river basins, but reflected river-drainage connections of the Quaternary. Provinces represent broad-scale patterns of endemism and provide a starting point for future studies. Relative malleability of province boundaries in the continental interior highlights this region as biogeographically diverse and dynamic. Interior-core provinces of this region (Central Gulf Coastal Plains, Northern Interior) have not been recognized previously and warrant further study. © 2015 Cambridge Philosophical Society.
Evaluation of biomolecular distributions in rat brain tissues by means of ToF-SIMS using a continuous beam of Ar clusters.

PubMed

Nakano, Shusuke; Yokoyama, Yuta; Aoyagi, Satoka; Himi, Naoyuki; Fletcher, John S; Lockyer, Nicholas P; Henderson, Alex; Vickerman, John C

2016-06-08

Time-of-flight secondary ion mass spectrometry (ToF-SIMS) provides detailed chemical structure information and high spatial resolution images. Therefore, ToF-SIMS is useful for studying biological phenomena such as ischemia. In this study, in order to evaluate cerebral microinfarction, the distribution of biomolecules generated by ischemia was measured with ToF-SIMS. ToF-SIMS data sets were analyzed by means of multivariate analysis for interpreting complex samples containing unknown information and to obtain biomolecular mapping indicated by fragment ions from the target biomolecules. Using conventional ToF-SIMS (primary ion source: Bi cluster ion), it is difficult to detect secondary ions beyond approximately 1000 u. Moreover, the intensity of secondary ions related to biomolecules is not always high enough for imaging because of low concentration even if the masses are lower than 1000 u. However, for the observation of biomolecular distributions in tissues, it is important to detect low amounts of biological molecules from a particular area of tissue. Rat brain tissue samples were measured with ToF-SIMS (J105, Ionoptika, Ltd., Chandlers Ford, UK), using a continuous beam of Ar clusters as a primary ion source. ToF-SIMS with Ar clusters efficiently detects secondary ions related to biomolecules and larger molecules. Molecules detected by ToF-SIMS were examined by analyzing ToF-SIMS data using multivariate analysis. Microspheres (45 μm diameter) were injected into the rat unilateral internal carotid artery (MS rat) to cause cerebral microinfarction. The rat brain was sliced and then measured with ToF-SIMS. The brain samples of a normal rat and the MS rat were examined to find specific secondary ions related to important biomolecules, and then the difference between them was investigated. Finally, specific secondary ions were found around vessels incorporating microspheres in the MS rat. The results suggest that important biomolecules related to cerebral microinfarction can be detected by ToF-SIMS.
Synergistic effects of drought stress and photoperiods on phenology and secondary metabolism of Silybum marianum.

PubMed

Zahir, Adnan; Abbasi, Bilal Haider; Adil, Muhammad; Anjum, Sumaira; Zia, Muhammad; Ihsan-Ul-Haq

2014-09-01

Silybum marianum is an important medicinal plant of the family Asteraceae, well known for its set of bioactive isomeric mixture of secondary metabolites "silymarin", primarily acting as a hepato-protective agent. Abiotic stress augments plant secondary metabolism in different plant tissues to withstand harsh environmental fluctuations. In the current study, our aim was to induce drought stress in vitro on S. marianum under the influence of different photoperiod treatments to study the effects, with respect to variations in secondary metabolic profile and plant growth and development. S. marianum was extremely vulnerable to different levels of mannitol-induced drought stress. Water deficiency inhibited root induction completely and retarded plant growth was observed; however, phytochemical analysis revealed enhanced accumulation of total phenolic content (TPC), total flavonoid content (TFC), and total protein content along with several antioxidative enzymes. Secondary metabolic content was positively regulated with increasing degree of drought stress. A dependent correlation of seed germination frequency at mild drought stress and antioxidative activities was established with 2 weeks dark + 2 weeks 16/8 h photoperiod treatment, respectively, whereas a positive correlation existed for TPC and TFC when 4 weeks 16/8 h photoperiod treatment was applied. The effects of drought stress are discussed in relation to phenology, seed germination frequency, biomass build up, antioxidative potential, and secondary metabolites accumulation.
Analysis of Related Factors of Overweight and Obesity among Secondary School Students in Chongqing, China

NASA Astrophysics Data System (ADS)

Liu, Yong-fang; Liu, Da-mei; Shi, Lin; Zhang, Bei; Han, Ling-li; Zhang, Yong; Yu, Li; Zhao, Yong

To analyze the prevalence of overweight and obesity, as well as the risky factors among secondary school students, and to put forward policy suggestions for health management department. A stratified and cluster sampling trial was conducted in Chongqing, China. A total of 524 students who met the criteria from 5 secondary schools were recruited in the study. The study carried out by questionnaire. The overweight and obesity among the students were overall prevalent, and the rates were 7.82% and 1.72%, respectively. The body mass index (BMI) of parents and birth weightof the students were significantly correlated (P <0.05). It was of great significantly difference on the living habits and food consumption choices, such as eating food two hours before bedtime, having pressure to learning, introvert, eating vegetables infrequently and drinking carbonated drinks often, among the overweight and obesity students group and control group (P <0.05). Multiple variables Logistic regression analysis showed that the BMI of parents, birth weight, and bad eating habits were the risky factors of the secondary school students in overweight and obesity, while doing exercise was the protective factor. The BMI of parents and the birth weight of students were significantly correlated with the BMI of the students. The overall prevalence of overweight and obesity of the students in the study was significantly lower than the average of the nation, but overweight and obesity among the adolescents are nutritional problems, which should be emphasized by all sectors of society instead of neglected.
Dynamic analysis of the large deployable reflector

NASA Technical Reports Server (NTRS)

Calleson, Robert E.; Scott, A. Don

1987-01-01

The Large Deployable Reflector (LDR) is to be an astronomical observatory orbiting above Earth's obscuring atmosphere and operating in the spectral range between 30 microns and 1000 microns wavelength. The LDR will be used to study such astronomical phenomena as stellar and galactic formation, cosmology, and planetary atmospheres. The LDR will be the first observatory to be erected and assembled in space. This distinction brings with it several major technological challenges such as the development of ultra-lightweight deployable mirrors, advanced mirror fabrication techniques, advanced structures, and control of vibrations due to various sources of excitation. The purpose of this analysis is to provide an assessment of the vibrational response due to secondary mirror chopping and LDR slewing. The dynamic response of two 20-m LDR configurations was studied. Two mirror support configurations were investigated for the Ames concept, the first employs a six-strut secondary mirror support structure, while the second uses a triple-bipod support design. All three configurations were modeled using a tetrahedral truss design for the primary mirror support structure. Response resulting from secondary mirror chopping was obtained for the two Ames configurations, and the response of the primary mirror from slewing was obtained for all three configurations.
External cavity-quantum cascade laser infrared spectroscopy for secondary structure analysis of proteins at low concentrations

PubMed Central

Schwaighofer, Andreas; Alcaráz, Mirta R.; Araman, Can; Goicoechea, Héctor; Lendl, Bernhard

2016-01-01

Fourier transform infrared (FTIR) and circular dichroism (CD) spectroscopy are analytical techniques employed for the analysis of protein secondary structure. The use of CD spectroscopy is limited to low protein concentrations (<2 mg ml−1), while FTIR spectroscopy is commonly used in a higher concentration range (>5 mg ml−1). Here we introduce a quantum cascade laser (QCL)-based IR transmission setup for analysis of protein and polypeptide secondary structure at concentrations as low as 0.25 mg ml−1 in deuterated buffer solution. We present dynamic QCL-IR spectra of the temperature-induced α-helix to β-sheet transition of poly-L-lysine. The concentration dependence of the α-β transition temperature between 0.25 and 10 mg ml−1 was investigated by QCL-IR, FTIR and CD spectroscopy. By using QCL-IR spectroscopy it is possible to perform IR spectroscopic analysis in the same concentration range as CD spectroscopy, thus enabling a combined analysis of biomolecules secondary structure by CD and IR spectroscopy. PMID:27633337
External cavity-quantum cascade laser infrared spectroscopy for secondary structure analysis of proteins at low concentrations.

PubMed

Schwaighofer, Andreas; Alcaráz, Mirta R; Araman, Can; Goicoechea, Héctor; Lendl, Bernhard

2016-09-16

Fourier transform infrared (FTIR) and circular dichroism (CD) spectroscopy are analytical techniques employed for the analysis of protein secondary structure. The use of CD spectroscopy is limited to low protein concentrations (<2 mg ml(-1)), while FTIR spectroscopy is commonly used in a higher concentration range (>5 mg ml(-1)). Here we introduce a quantum cascade laser (QCL)-based IR transmission setup for analysis of protein and polypeptide secondary structure at concentrations as low as 0.25 mg ml(-1) in deuterated buffer solution. We present dynamic QCL-IR spectra of the temperature-induced α-helix to β-sheet transition of poly-L-lysine. The concentration dependence of the α-β transition temperature between 0.25 and 10 mg ml(-1) was investigated by QCL-IR, FTIR and CD spectroscopy. By using QCL-IR spectroscopy it is possible to perform IR spectroscopic analysis in the same concentration range as CD spectroscopy, thus enabling a combined analysis of biomolecules secondary structure by CD and IR spectroscopy.
Interpretive focus groups: a participatory method for interpreting and extending secondary analysis of qualitative data.

PubMed

Redman-MacLaren, Michelle; Mills, Jane; Tommbe, Rachael

2014-01-01

Participatory approaches to qualitative research practice constantly change in response to evolving research environments. Researchers are increasingly encouraged to undertake secondary analysis of qualitative data, despite epistemological and ethical challenges. Interpretive focus groups can be described as a more participative method for groups to analyse qualitative data. To facilitate interpretive focus groups with women in Papua New Guinea to extend analysis of existing qualitative data and co-create new primary data. The purpose of this was to inform a transformational grounded theory and subsequent health promoting action. A two-step approach was used in a grounded theory study about how women experience male circumcision in Papua New Guinea. Participants analysed portions or 'chunks' of existing qualitative data in story circles and built upon this analysis by using the visual research method of storyboarding. New understandings of the data were evoked when women in interpretive focus groups analysed the data 'chunks'. Interpretive focus groups encouraged women to share their personal experiences about male circumcision. The visual method of storyboarding enabled women to draw pictures to represent their experiences. This provided an additional focus for whole-of-group discussions about the research topic. Interpretive focus groups offer opportunity to enhance trustworthiness of findings when researchers undertake secondary analysis of qualitative data. The co-analysis of existing data and co-generation of new data between research participants and researchers informed an emergent transformational grounded theory and subsequent health promoting action.
Interpretive focus groups: a participatory method for interpreting and extending secondary analysis of qualitative data

PubMed Central

Redman-MacLaren, Michelle; Mills, Jane; Tommbe, Rachael

2014-01-01

Background Participatory approaches to qualitative research practice constantly change in response to evolving research environments. Researchers are increasingly encouraged to undertake secondary analysis of qualitative data, despite epistemological and ethical challenges. Interpretive focus groups can be described as a more participative method for groups to analyse qualitative data. Objective To facilitate interpretive focus groups with women in Papua New Guinea to extend analysis of existing qualitative data and co-create new primary data. The purpose of this was to inform a transformational grounded theory and subsequent health promoting action. Design A two-step approach was used in a grounded theory study about how women experience male circumcision in Papua New Guinea. Participants analysed portions or ‘chunks’ of existing qualitative data in story circles and built upon this analysis by using the visual research method of storyboarding. Results New understandings of the data were evoked when women in interpretive focus groups analysed the data ‘chunks’. Interpretive focus groups encouraged women to share their personal experiences about male circumcision. The visual method of storyboarding enabled women to draw pictures to represent their experiences. This provided an additional focus for whole-of-group discussions about the research topic. Conclusions Interpretive focus groups offer opportunity to enhance trustworthiness of findings when researchers undertake secondary analysis of qualitative data. The co-analysis of existing data and co-generation of new data between research participants and researchers informed an emergent transformational grounded theory and subsequent health promoting action. PMID:25138532
FAULT PROPAGATION AND EFFECTS ANALYSIS FOR DESIGNING AN ONLINE MONITORING SYSTEM FOR THE SECONDARY LOOP OF A NUCLEAR POWER PLANT PART OF A HYBRID ENERGY SYSTEM

DOE Office of Scientific and Technical Information (OSTI.GOV)

Li, Huijuan; Diao, Xiaoxu; Li, Boyuan

This paper studies the propagation and effects of faults of critical components that pertain to the secondary loop of a nuclear power plant found in Nuclear Hybrid Energy Systems (NHES). This information is used to design an on-line monitoring (OLM) system which is capable of detecting and forecasting faults that are likely to occur during NHES operation. In this research, the causes, features, and effects of possible faults are investigated by simulating the propagation of faults in the secondary loop. The simulation is accomplished by using the Integrated System Failure Analysis (ISFA). ISFA is used for analyzing hardware and softwaremore » faults during the conceptual design phase. In this paper, the models of system components required by ISFA are initially constructed. Then, the fault propagation analysis is implemented, which is conducted under the bounds set by acceptance criteria derived from the design of an OLM system. The result of the fault simulation is utilized to build a database for fault detection and diagnosis, provide preventive measures, and propose an optimization plan for the OLM system.« less
Moche CAPE Formula: Cost Analysis of Public Education.

ERIC Educational Resources Information Center

Moche, Joanne Spiers

The Moche Cost Analysis of Public Education (CAPE) formula was developed to identify total and per pupil costs of regular elementary education, regular secondary education, elementary special education, and secondary special education. Costs are analyzed across five components: (1) comprehensive costs (including transportation and supplemental…
Closed-form model for the analysis of W-type shaped charges

NASA Astrophysics Data System (ADS)

Mahdian, A.; Ghayour, M.; Liaghat, G. H.

2013-09-01

This paper presents a closed-form model for the analysis of symmetric planar W-type shaped charges (WSCs) with two V-sections, which produce two primary cores and two primary jets. If these two V-sections have proper asymmetry, these primary cores will force two primary jets into a secondary core formed on the axis of symmetry of a planar symmetric WSC. For the analysis of such a planar WSC, a complete generalized model for an asymmetric planar V-shaped charge (VSC) with any desired order of asymmetry is mandatory. In this paper, the model is applied to describe the secondary jet formation in the WSC. By presenting a closed-form analysis of the WSC, the secondary jet specifications can be easily evaluated and, thus, can be compared with respect to the jet quantities in symmetric or asymmetric VSCs. Finally, for the primary and secondary jets, the coherency conditions are investigated, and the critical parameters responsible for these conditions are determined.
A systematic review of the effectiveness of secondary prevention lifestyle interventions designed to change lifestyle behaviour following stroke.

PubMed

Lawrence, Maggie; Kerr, Susan; McVey, Ms Caroline; Godwin, Jon

Background Each year, approximately 15 million people worldwide have a stroke; of these, five million die and another five million are chronically disabled. Stroke recurs in approximately 25% of patients during the first five years post-stroke; recurrence may result in death, increased disability or institutionalisation. Modifiable risk factors for recurrent stroke have been identified, and may be addressed by means of behavioural health promotion interventions.Objectives This systematic review sought to establish the effectiveness of secondary prevention behavioural interventions, which address one or more modifiable lifestyle risk factors for recurrent stroke i.e. tobacco use, unhealthy diet, physical inactivity and excessive alcohol consumption. Types of participants The review included studies that had recruited adults (aged ≥18 years) who had had a stroke, minor stroke or transient ischaemic attack.Types of intervention The review considered studies that evaluated behavioural lifestyle interventions, designed to address the prevention of recurrent stroke.Types of outcomes Primary outcomes were concerned with lifestyle behaviour change i.e. tobacco use, diet, physical activity and alcohol consumption, and with change in physiological measures e.g. blood pressure, total cholesterol, and Body Mass Index. Secondary outcome measures included psychological outcomes, learning outcomes and incidence of stroke recurrence.Types of studies Experimental and non-experimental quantitative studies were considered.Search strategy In August 2009, we searched All EMB Reviews, AMED, ASSIA, British Nursing Index and Archive, CINAHL, Conference Proceedings Citation Index - Science, ProQuest dissertation and theses, EMBASE, MEDLINE, PsycINFO, and bibliographies of retrieved papers.Methodological quality and data extraction Two review authors independently assessed methodological quality using standardised critical appraisal instruments from the Joanna Briggs Institute Meta Analysis of Statistics Assessment and Review Instrument, and extracted data using a review-specific data extraction form.Data analysis Where possible, results from the review papers were pooled in statistical meta-analysis using bespoke software based on the system used by the Early Breast Cancer Trialists Collaborative Group. Where statistical pooling was not possible, findings are presented in narrative form.Results Three studies, two RCTs and one quasi-experimental study, involving 581 participants (baseline) were included in the review. Two models of service delivery were reported: shared care and nurse-led. Interventions were delivered to groups or in one-to-one consultations.Meta-analyses of the pooled lifestyle data favoured the interventions (2p=0.02; Note: here and throughout, 2p represents the two-tailed probability). In terms of physiological outcomes, the pooled data favoured the interventions (2p=0.05), particularly those aiming to reduce blood pressure and cholesterol levels. The pooled secondary outcomes, including perceived health status and stroke knowledge favoured the interventions (2p<0.00001), however, the test for heterogeneity was also highly significant.Conclusions Stroke secondary prevention lifestyle interventions are effective in terms of affecting positive change in relation to lifestyle behaviours, physiological and secondary outcomes. However, there was insufficient evidence to determine the effect of intervention on incidence of stroke recurrence.Implications for practice Clinicians should implement stroke secondary prevention interventions which address lifestyle behaviours, physiological factors, psychological outcomes and stroke knowledge.Implications for research Further large-scale, well-designed trials are needed to determine the factors that impact on the effectiveness of secondary prevention interventions.
The effect of growth hormone replacement in patients with hypopituitarism on pituitary tumor recurrence, secondary cancer, and stroke.

PubMed

Jasim, Sina; Alahdab, Fares; Ahmed, Ahmed T; Tamhane, Shrikant U; Sharma, Anu; Donegan, Diane; Nippoldt, Todd B; Murad, M Hassan

2017-05-01

Growth hormone replacement therapy has benefits for patients with hypopituitarism. The safety profile in regard to tumor recurrence or progression, development of secondary malignancies, or cerebrovascular stroke is still an area of debate. A comprehensive search of multiple databases-MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews, and Scopus was conducted through August 2015. Eligible studies that evaluated long-term adverse events in adult patients with hypopituitarism treated with growth hormone replacement therapy and reported development of pituitary tumor recurrence or progression, secondary malignancies, or cerebrovascular stroke were selected following a predefined protocol. Reviewers, independently and in duplicate, extracted data and assessed the risk of bias. Random-effects meta-analysis was used to pool relative risks and 95 % confidence intervals. We included 15 studies (published 1995-2015) that reported on 46,148 patients. Compared to non-replacement, growth hormone replacement therapy in adults with hypopituitarism was not associated with statistically significant change in pituitary tumor progression or recurrence (relative risk, 0.77; 95 % confidence interval, 0.53-1.13) or development of secondary malignancy (relative risk, 0.99; 95 % confidence interval, 0.70-1.39). In two retrospective studies, there was higher risk of stroke in patients who did not receive replacement (relative risk, 2.07; 95 % confidence interval, 1.51-2.83). The quality of evidence is low due to study limitations and imprecision. This systematic review and meta-analysis supports the overall safety of growth hormone therapeutic use in adults with hypopituitarism with no clear evidence of increased risk of pituitary tumor recurrence, malignancy, or stroke.
Identification of differentially expressed genes and signalling pathways in bark of Hevea brasiliensis seedlings associated with secondary laticifer differentiation using gene expression microarray.

PubMed

Loh, Swee Cheng; Thottathil, Gincy P; Othman, Ahmad Sofiman

2016-10-01

The natural rubber of Para rubber tree, Hevea brasiliensis, is the main crop involved in industrial rubber production due to its superior quality. The Hevea bark is commercially exploited to obtain latex, which is produced from the articulated secondary laticifer. The laticifer is well defined in the aspect of morphology; however, only some genes associated with its development have been reported. We successfully induced secondary laticifer in the jasmonic acid (JA)-treated and linolenic acid (LA)-treated Hevea bark but secondary laticifer is not observed in the ethephon (ET)-treated and untreated Hevea bark. In this study, we analysed 27,195 gene models using NimbleGen microarrays based on the Hevea draft genome. 491 filtered differentially expressed (FDE) transcripts that are common to both JA- and LA-treated bark samples but not ET-treated bark samples were identified. In the Eukaryotic Orthologous Group (KOG) analysis, 491 FDE transcripts belong to different functional categories that reflect the diverse processes and pathways involved in laticifer differentiation. In the Kyoto Encyclopedia of Genes and Genomes (KEGG) and KOG analysis, the profile of the FDE transcripts suggest that JA- and LA-treated bark samples have a sufficient molecular basis for secondary laticifer differentiation, especially regarding secondary metabolites metabolism. FDE genes in this category are from the cytochrome (CYP) P450 family, ATP-binding cassette (ABC) transporter family, short-chain dehydrogenase/reductase (SDR) family, or cinnamyl alcohol dehydrogenase (CAD) family. The data includes many genes involved in cell division, cell wall synthesis, and cell differentiation. The most abundant transcript in FDE list was SDR65C, reflecting its importance in laticifer differentiation. Using the Basic Local Alignment Search Tool (BLAST) as part of annotation and functional prediction, several characterised as well as uncharacterized transcription factors and genes were found in the dataset. Hence, the further characterization of these genes is necessary to unveil their role in laticifer differentiation. This study provides a platform for the further characterization and identification of the key genes involved in secondary laticifer differentiation. Copyright © 2016 Elsevier Masson SAS. All rights reserved.

Healthcare professionals' perceptions of neglect of older people in Mexico: A qualitative secondary analysis.

PubMed

Caceres, Billy A; Bub, Linda; Negrete, Maria Isabel; Giraldo Rodríguez, Liliana; Squires, Allison P

2018-03-01

To describe healthcare professionals' perceptions of neglect of older people in Mexico. Mistreatment of older people, particularly neglect, has emerged as a significant public health concern worldwide. However, few studies have been conducted to examine neglect of older people in low- and middle-income countries. Most research has focused on estimating the prevalence of neglect in older populations with little emphasis on the perceptions of healthcare professionals and their role in addressing neglect of older people. Qualitative secondary analysis. The parent study consisted of nine focus groups conducted with healthcare professionals at five public hospitals in Mexico. The purpose of the parent study was to perform a needs assessment to determine the feasibility of adapting the Nurses Improving Care for Healthsystem Elders programme to Mexico. A qualitative secondary analysis with directed content analysis approach was used to extract data related to neglect of older people. A total of 89 participants representing healthcare professionals from several disciplines were interviewed. Three themes emerged: (i) The main point is not here; (ii) We feel hopeless; and (iii) We need preparation. Participants reported distress and hopelessness related to neglect of older people. Lack of community-based resources was noted as contributing to neglect. Increased education regarding care of older people for both caregivers and healthcare professionals and greater interdisciplinary collaboration were identified as potential solutions to combat neglect. Community-based services and resource allocation need to be re-evaluated to improve the care of older Mexicans. Interdisciplinary models of care should be developed to address concerns related to neglect of older people. Neglect negatively impacts healthcare professionals' ability to adequately care for older patients. There is a need to invest in community-based services and models of care to address these concerns. © 2017 John Wiley & Sons Ltd.
A Known Group Analysis Validity Study of the Vanderbilt Assessment of Leadership in Education in US Elementary and Secondary Schools

ERIC Educational Resources Information Center

Covay Minor, Elizabeth; Porter, Andrew C.; Murphy, Joseph; Goldring, Ellen B.; Cravens, Xiu; Elloitt, Stephen N.

2014-01-01

The Vanderbilt Assessment of Leadership in Education (VAL-ED) provides educators with a tool for principal evaluation based on principal, teacher, and supervisor reports of principals' learning-centered leadership. In this study, we conduct a known group analysis as part of a larger argument for the validity of the VAL-ED in US elementary and…
Prevalence of and Risk Factors for Secondary Traumatization in Interpreters for Refugees: A Cross-Sectional Study.

PubMed

Kindermann, David; Schmid, Carolin; Derreza-Greeven, Cassandra; Huhn, Daniel; Kohl, Rupert Maria; Junne, Florian; Schleyer, Maritta; Daniels, Judith K; Ditzen, Beate; Herzog, Wolfgang; Nikendei, Christoph

2017-01-01

A substantial proportion of refugees, fleeing persecution, torture, and war, are estimated to suffer from psychological traumatization. After being sheltered in reception centers, the refugees come in close contact with different occupational groups, e.g., physicians, social workers, and interpreters. Previous studies ascertained that such interpreters themselves often suffer from primary psychological traumatization. Moreover, through translating refugees' potentially traumatic depictions, the interpreters are in danger of developing a so-called secondary traumatization. The present study aimed (1) to analyze the prevalence rates of primary traumatization in interpreters, (2) to assess the prevalence of secondary traumatization, depression, anxiety, and stress symptoms, (3) to examine the association between secondary traumatization symptoms and resilience factors in terms of sense of coherence, social support, and attachment style, and (4) to test whether these resilience factors mediate the relationship between primary and secondary traumatization. Participating interpreters (n = 64) were assessed for past exposure to potentially traumatic events as well as symptoms of posttraumatic stress disorder (PTSD), secondary traumatization, depressive symptoms, anxiety, and subjective stress levels. Furthermore, we conducted psychometric surveys to measure interpreters' sense of coherence, degree of social support, and attachment style as potential predictors. (1) 9% of the interpreters fulfilled all criteria for PTSD and a further 33% had subclinical PTSD; (2) a secondary traumatization was present in 21% of the examined interpreters - of these, 6% showed very high total scores indicating a severe secondary traumatization; furthermore, we found higher scores for depression, anxiety, and stress as compared to representative population samples, especially for females; (3) a present sense of coherence, an existing social support network, and a secure or preoccupied attachment style correlated significantly with low scores for secondary traumatization; and (4) a significant correlation emerged between primary and secondary traumatization (r = 0.595, p < 0.001); a mediation analysis revealed that this effect is partially mediated by secure attachment. A substantial proportion of interpreters working with refugees suffer from primary as well as secondary traumatization. However, high scores for sense of coherence and social support, male gender, and especially a secure attachment style were identified as resilience factors for secondary traumatization. The results may have implications for the selection, training, and supervision of interpreters. © 2017 S. Karger AG, Basel.
Quantifying the benefits to the national economy from secondary applications of NASA technology, executive summary

NASA Technical Reports Server (NTRS)

1976-01-01

The feasibility of systematically quantifying the economic benefits of secondary applications of NASA related R and D was investigated. Based upon the tools of economic theory and econometric analysis, a set of empirical methods was developed and selected applications were made to demonstrate their workability. Analyses of the technological developments related to integrated circuits, cryogenic insulation, gas turbines, and computer programs for structural analysis indicated substantial secondary benefits accruing from NASA's R and D in these areas.
Quantifying the benefits to the national economy from secondary applications of NASA technology

NASA Technical Reports Server (NTRS)

1976-01-01

The feasibility of systematically quantifying the economic benefits of secondary applications of NASA related R and D is investigated. Based upon the tools of economic theory and econometric analysis, it develops a set of empirical methods and makes selected applications to demonstrate their workability. Analyses of the technological developments related to integrated circuits, cryogenic insulation, gas turbines, and computer programs for structural analysis indicated substantial secondary benefits accruing from NASA's R and D in these areas.
A Qualitative Study of Secondary School Teachers’ Perception of Social Network Analysis Metrics in the Context of Alcohol Consumption among Adolescents

PubMed Central

Quiroga, Enedina; Benavides, Carmen; Martín, Vicente

2017-01-01

Adolescence is a transitional period during which a number of changes occur. Social relationships established during this period influence adolescent behaviour and affect academic performance or alcohol consumption habits, among other issues. Teachers are very important actors in observing and guiding the evolution of their students, and should therefore have the appropriate knowledge and tools to gain insight into the complex social relationships that exist in their classes. The use of social network analysis (SNA) techniques may be helpful in order to study and monitor the evolution of these social networks. This study tries to understand how teachers perceive SNA metrics from an intuitive point of view. Using this information, useful tools could be created that allow teachers to use SNA techniques to improve their understanding of student relationships. A number of interviews with different teachers were held in secondary schools in Spain, allowing SNA concepts to be related to the everyday terms used by the teachers to characterize their students. Results from the study have an impact on questionnaire design for gathering data from students in order to perform an SNA analysis and on the design of software applications that can help teachers to understand the results of this analysis. PMID:29292718
Prevalence and factors associated with poor sleep quality among secondary school teachers in a developing country.

PubMed

Musa, Nor Asma; Moy, Foong Ming; Wong, Li Ping

2018-05-31

This study aimed to determine the prevalence and factors associated with poor sleep quality among secondary school teachers in the state of Selangor, Malaysia. This was a cross sectional study, conducted in two phases. Phase I tested the reliability of the Pittsburgh Sleep Quality Index in the Malay language (M-PSQI), whereas Phase II determined the prevalence and factors associated with poor sleep quality where a total of 1871 secondary school teachers were studied. Participants were recruited using multistage sampling. Self-administered questionnaire was used to collect data on socio-demographic and teaching characteristics, comorbidities and characteristics of sleep. The M-PSQI was used to measure sleep quality. The Depression Anxiety Stress Scale-21 was used to measure mental health status. Results showed that the M-PSQI had a good internal consistency and moderate reliability. The prevalence of poor sleep quality was 61 (95% CI: 54-67) %. Total teaching hours/day, depression and stress were significantly associated with poor sleep quality in the univariate analysis, while only stress (OR 1.04; 95% CI 1.02-1.05%) remained significant in the multivariate analyses. In conclusion, stress level of the secondary school teachers should be reduced to improve sleep quality.
Transcervical embryoscopic and cytogenetic findings reveal distinctive differences in primary and secondary recurrent pregnancy loss.

PubMed

Feichtinger, Michael; Wallner, Elisabeth; Hartmann, Beda; Reiner, Angelika; Philipp, Thomas

2017-01-01

To assess the cytogenetic and embryoscopic characteristics of primary and secondary recurrent pregnancy loss. Clinical prospective descriptive study. Tertiary care center. Nine hundred and eighty-four women affected by first-trimester pregnancy loss; 145 patients with recurrent pregnancy loss (RPL) and 839 patients with nonrecurrent pregnancy loss as controls. Transcervical embryoscopic examination of the embryo before uterine evacuation, and cytogenetic analysis of the chorionic villi by standard G-banding cytogenetic techniques. Aneuploidy frequency in the primary and secondary RPL group and the nonrecurrent pregnancy loss (non-RPL) control group. Patients with RPL showed statistically significantly fewer aneuploid pregnancy losses (odds ratio [OR] 0.596; 95% confidence interval [CI], 0.40-0.88). Primary RPL was associated with lower aneuploidy rates compared with the non-RPL group (OR 0.423; 95% CI, 0.27-0.66) while secondary RPL was not (OR 1.414; 95% CI, 0.67-2.99). Patients with primary RPL had statistically significantly more morphologically normal embryos compared with non-RPL and secondary RPL. Patients' embryos after primary and secondary RPL show distinctive differences in aneuploidy and morphologic defect rates. These findings suggest different treatment approaches for the patients with primary and secondary RPL. Copyright © 2016 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.
Content Analysis of the Concept of Addiction in High School Textbooks of Iran.

PubMed

Mirzamohammadi, Mohammad Hasan; Mousavi, Sayedeh Zainab; Massah, Omid; Farhoudian, Ali

2017-01-01

This research sought to determine how well the causes of addiction, addiction harms, and prevention of addiction have been noticed in high school textbooks. We used descriptive method to select the main related components of the addiction concept and content analysis method for analyzing the content of textbooks. The study population comprised 61 secondary school curriculum textbooks and study sample consisted of 14 secondary school textbooks selected by purposeful sampling method. The tools for collecting data were "content analysis inventory" which its validity was confirmed by educational and social sciences experts and its reliability has been found to be 91%. About 67 components were prepared for content analysis and were divided to 3 categories of causes, harms, and prevention of addiction. The analysis units in this study comprised phrases, topics, examples, course topics, words, poems, images, questions, tables, and exercises. Results of the study showed that the components of the addiction concept have presented with 212 remarks in the textbooks. Also, the degree of attention given to any of the 3 main components of the addiction concept were presented as follows: causes with 52 (24.52%) remarks, harm with 89 (41.98%) remarks, and prevention with 71 (33.49%) remarks. In high school textbooks, little attention has been paid to the concept of addiction and mostly its biological dimension were addressed while social, personal, familial, and religious dimensions of addiction have been neglected.
Identification and functional analysis of the aspergillic acid gene cluster in Aspergillus flavus

USDA-ARS?s Scientific Manuscript database

Aspergillus flavus can colonize important food staples and produces aflatoxins, toxic and carcinogenic secondary metabolites. In silico analysis of the A. flavus genome revealed 56 gene clusters encoding for secondary metabolites. How these many of these metabolites affect fungal development, surviv...
What clues are available for differential diagnosis of headaches in emergency settings?

PubMed

Mert, Ertan; Ozge, Aynur; Taşdelen, Bahar; Yilmaz, Arda; Bilgin, Nursel G

2008-04-01

The correct diagnosis of headache disorders in an emergency room is important for developing early management strategies and determining optimal emergency room activities. This prospective clinical based study was performed in order to determine demographic and clinical clues for differential diagnosis of primary and secondary headache disorders and also to obtain a classification plot for the emergency room practitioners. This study included 174 patients older than 15 years of age presenting in the emergency room with a chief complaint of headache. Definite headache diagnoses were made according to ICHD-II criteria. Classification and regression tree was used as new method for the statistical analysis of the differential diagnostic process. Our 174 patients with headache were diagnosed as basically primary (72.9%) and secondary (27.1%) headaches. Univariate analysis with cross tabs showed three important results. First, unilateral pain location caused 1.431-fold increase in the primary headache risk (p = 0.006). Second, having any triggers caused 1.440-fold increase in the primary headache risk (p = 0.001). Third, having associated co-morbid medical disorders caused 4.643-fold increase in the secondary headache risk (p < 0.001). It was concluded that the presence of comorbidity, the patient's age, the existence of trigger and relaxing factors, the pain in other body parts that accompanies headache and the quality of pain in terms of location and duration were all important clues for physicians in making an accurate differentiation between primary and secondary headaches.
Influence of Stationary Crossflow Modulation on Secondary Instability

NASA Technical Reports Server (NTRS)

Choudhari, Meelan M.; Li, Fei; Paredes, Pedro

2016-01-01

A likely scenario for swept wing transition on subsonic aircraft with natural laminar flow involves the breakdown of stationary crossflow vortices via high frequency secondary instability. A majority of the prior research on this secondary instability has focused on crossflow vortices with a single dominant spanwise wavelength. This paper investigates the effects of the spanwise modulation of stationary crossflow vortices at a specified wavelength by a subharmonic stationary mode. Secondary instability of the modulated crossflow pattern is studied using planar, partial-differential-equation based eigenvalue analysis. Computations reveal that weak modulation by the first subharmonic of the input stationary mode leads to mode splitting that is particularly obvious for Y-type secondary modes that are driven by the wall-normal shear of the basic state. Thus, for each Y mode corresponding to the fundamental wavelength of results in unmodulated train of crossflow vortices, the modulated flow supports a pair of secondary modes with somewhat different amplification rates. The mode splitting phenomenon suggests that a more complex stationary modulation such as that induced by natural surface roughness would yield a considerably richer spectrum of secondary instability modes. Even modest levels of subharmonic modulation are shown to have a strong effect on the overall amplification of secondary disturbances, particularly the Z-modes driven by the spanwise shear of the basic state. Preliminary computations related to the nonlinear breakdown of these secondary disturbances provide interesting insights into the process of crossflow transition in the presence of the first subharmonic of the dominant stationary vortex.
Plant body weight-induced secondary growth in Arabidopsis and its transcription phenotype revealed by whole-transcriptome profiling.

PubMed

Ko, Jae-Heung; Han, Kyung-Hwan; Park, Sunchung; Yang, Jaemo

2004-06-01

Wood is an important raw material and environmentally cost-effective renewable source of energy. However, the molecular biology of wood formation (i.e. secondary growth) is surprisingly understudied. A novel experimental system was employed to study the molecular regulation of secondary xylem formation in Arabidopsis. First, we demonstrate that the weight carried by the stem is a primary signal for the induction of cambium differentiation and the plant hormone, auxin, is a downstream carrier of the signal for this process. We used Arabidopsis whole-transcriptome (23 K) GeneChip analysis to examine gene expression profile changes in the inflorescent stems treated for wood formation by cultural manipulation or artificial weight application. Many of the genes up-regulated in wood-forming stems had auxin responsive cis-acting elements in their promoter region, indicating auxin-mediated regulation of secondary growth. We identified 700 genes that were differentially expressed during the transition from primary growth to secondary growth. More than 40% of the genes that were up-regulated (>5x) were associated with signal transduction and transcriptional regulation. Biological significance of these regulatory genes is discussed in light of the induction and development of secondary xylem.
Striving for Normalcy after Lower Extremity Reconstruction with Free Tissue: The Role of Secondary Esthetic Refinements.

PubMed

Nelson, Jonas A; Fischer, John P; Haddock, Nicholas T; Mackay, Duncan; Wink, Jason D; Newman, Andrew S; Levin, L Scott; Kovach, Stephen J

2016-02-01

Many patients with successful lower extremity salvage have postoperative functional and esthetic concerns. Such concerns range from contour irregularity preventing proper shoe-fitting to esthetic concerns involving color, contour, and texture match. The purpose of this study is to determine the overall incidence as well as factors associated with an increased likelihood of undergoing secondary, esthetic refinements of lower extremity free flaps and to review current revision techniques. All patients undergoing lower extremity soft tissue coverage for limb salvage procedures between January 2007 and June 2013 at a single institution were included in the analysis. Patients who underwent secondary refinements for lower extremity free flaps were compared with patients not undergoing secondary procedures. During the study period, 152 patients underwent reconstruction and were eligible for inclusion. Of these, 32 (21.1%) patients underwent secondary, esthetic revisions. Few differences in patient or case characteristics were noted, although revision patients trended toward being younger, having lower body mass index, with defects secondary to acute trauma located below the ankle. The most common revision was complex soft tissue rearrangement or surgical flap debulking/direct excision (87.5% of patients), followed by scar revision (12.5%), suction-assisted lipectomy (3.1%), laser scar revision (3.1%), and tissue expansion with local tissue rearrangement (3.1%). A significant portion of patients desire secondary revisions following the initial procedure. This is especially true of younger patients with below ankle reconstruction. In many patients, an esthetic consideration should not be of secondary concern, but should be part of the ultimate reconstructive algorithm for lower extremity limb salvage. Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.
Secondary Traumatization in Psychiatric Mental Health Nurses: Validation of Five Key Concepts.

PubMed

Hubbard, Grace B; Beeber, Linda; Eves, Erin

2017-04-01

The purpose of this study was to validate five concepts central to secondary traumatization (ST) using narratives of psychiatric mental health advanced practice nurses. The study was designed as a directed content analysis of narrative notes (N-30). Consistency was found between narrative notes and the concepts. This study revealed that exposure and vulnerability precede empathic engagement, reaction, and alteration/transformation. The bidirectional outcome of alteration/transformation suggested that conditions leading to ST could have a positive outcome. Failure to recognize symptoms of ST and provide reflective supervision may compromise the nurse's ability to maintain a work-life balance and provide quality patient care. © 2015 Wiley Periodicals, Inc.
Protein quantification on dendrimer-activated surfaces by using time-of-flight secondary ion mass spectrometry and principal component regression

NASA Astrophysics Data System (ADS)

Kim, Young-Pil; Hong, Mi-Young; Shon, Hyun Kyong; Chegal, Won; Cho, Hyun Mo; Moon, Dae Won; Kim, Hak-Sung; Lee, Tae Geol

2008-12-01

Interaction between streptavidin and biotin on poly(amidoamine) (PAMAM) dendrimer-activated surfaces and on self-assembled monolayers (SAMs) was quantitatively studied by using time-of-flight secondary ion mass spectrometry (ToF-SIMS). The surface protein density was systematically varied as a function of protein concentration and independently quantified using the ellipsometry technique. Principal component analysis (PCA) and principal component regression (PCR) were used to identify a correlation between the intensities of the secondary ion peaks and the surface protein densities. From the ToF-SIMS and ellipsometry results, a good linear correlation of protein density was found. Our study shows that surface protein densities are higher on dendrimer-activated surfaces than on SAMs surfaces due to the spherical property of the dendrimer, and that these surface protein densities can be easily quantified with high sensitivity in a label-free manner by ToF-SIMS.
Associations between school-level environment and science classroom environment in secondary schools

NASA Astrophysics Data System (ADS)

Dorman, Jeffrey P.; Fraser, Barry J.; McRobbie, Campbell J.

1995-09-01

This article describes a study of links between school environment and science classroom environment. Instruments to assess seven dimensions of school environment (viz., Empowerment, Student Support, Affiliation, Professional Interest, Mission Consensus, Resource Adequacy and Work Pressure) and seven dimensions of classroom environment (viz., Student Affiliation, Interactions, Cooperation, Task Orientation, Order & Organisation, Individualisati n and Teacher Control) in secondary school science classrooms were developed and validated. The study involved a sample of 1,318 students in 64 year 9 and year 12 science classes and 128 teachers of science in Australian secondary schools. Using the class mean as the unit of analysis for student data, associations between school and classroom environment were investigated using simple, multiple and canonical correlational analyses. In general, results indicated weak relationships between school and classroom environments and they reinforced the view that characteristics of the school environment are not transmitted automatically into science classrooms.
Rail vehicle dynamic response to a nonlinear physical 'in-service' model of its secondary suspension hydraulic dampers

NASA Astrophysics Data System (ADS)

Wang, W. L.; Zhou, Z. R.; Yu, D. S.; Qin, Q. H.; Iwnicki, S.

2017-10-01

A full nonlinear physical 'in-service' model was built for a rail vehicle secondary suspension hydraulic damper with shim-pack-type valves. In the modelling process, a shim pack deflection theory with an equivalent-pressure correction factor was proposed, and a Finite Element Analysis (FEA) approach was applied. Bench test results validated the damper model over its full velocity range and thus also proved that the proposed shim pack deflection theory and the FEA-based parameter identification approach are effective. The validated full damper model was subsequently incorporated into a detailed vehicle dynamics simulation to study how its key in-service parameter variations influence the secondary-suspension-related vehicle system dynamics. The obtained nonlinear physical in-service damper model and the vehicle dynamic response characteristics in this study could be used in the product design optimization and nonlinear optimal specifications of high-speed rail hydraulic dampers.
Factors (Not) Affecting What Students Do with Computers and Internet at Home

ERIC Educational Resources Information Center

Hinostroza, J. Enrique; Matamala, Carolina; Labbé, Christian; Claro, Magdalena; Cabello, Tania

2015-01-01

This paper presents the results of an analysis of secondary students' computer use, aimed at understanding how different factors influence the profile of activities carried out by students with computers. The analysis is based on the data from a national study aimed at measuring students' Information and Communication Technology (ICT) skills for…
Developing Information Skills Test for Malaysian Youth Students Using Rasch Analysis

ERIC Educational Resources Information Center

Karim, Aidah Abdul; Shah, Parilah M.; Din, Rosseni; Ahmad, Mazalah; Lubis, Maimun Aqhsa

2014-01-01

This study explored the psychometric properties of a locally developed information skills test for youth students in Malaysia using Rasch analysis. The test was a combination of 24 structured and multiple choice items with a 4-point grading scale. The test was administered to 72 technical college students and 139 secondary school students. The…

Career Motivations of the Scientist-Turned-Librarian: A Secondary Analysis of WILIS Data

ERIC Educational Resources Information Center

Walker, Shannon

2011-01-01

What might motivate someone with a natural science degree to forgo the lab and pursue a non-traditional career in librarianship? Are there differences between LIS graduates with and without a science degree that might impact recruitment strategies? An analysis of data from a longitudinal career study, "Workforce Issues in Library and…
Comparative analysis of pesticide effects on natural enemies in western orchards: a synthesis of laboratory bioassay data

USDA-ARS?s Scientific Manuscript database

Pesticides are commonly used for management of codling moth and diseases in apple, pear and walnut orchards in the western U.S. and these pesticides may disrupt the biological control of secondary pests in these crops. A comparative analysis was made of results obtained from a series of studies of ...
Towards a Framework of Socio-Linguistic Analysis of Science Textbooks: The Greek Case

ERIC Educational Resources Information Center

Dimopoulos, Kostas; Koulaidis, Vasilis; Sklaveniti, Spyridoula

2005-01-01

This study aims at presenting a grid for analysing the way the language employed in Greek school science textbooks tends to project pedagogic messages. These messages are analysed for the different school science subjects (i.e., Physics, Chemistry, Biology) and educational levels (i.e., primary and lower secondary level). The analysis is made…
Comparative Critical Discourse Analysis of Student and Teacher Editions of Secondary Christian American Literature Textbooks

ERIC Educational Resources Information Center

Agiro, Christa Preston

2012-01-01

This article discusses the comparative application of critical discourse analysis to student and teacher editions of the two most widely used high school American literature textbooks by Christian publishers, examining them through the lens of critical theory. The study examined all parts of the student and teacher editions, excepting literary…
Substance Use in Urban and Rural Texas School Districts

ERIC Educational Resources Information Center

Maxwell, Jane Carlisle; Tackett-Gibson, Melissa; Dyer, James

2006-01-01

The aim of this study is to compare substance use between urban and rural secondary school districts in Texas between 1998 and 2003. The differences were analyzed using chi-square and analysis of variance. The analysis found that rural schools had students who reported higher rates of use of tobacco, frequent binge drinking, and driving while…
Experiences of Students with Visual Impairments in Adoption of Digital Talking Textbooks: An Interpretative Phenomenological Analysis

ERIC Educational Resources Information Center

Hussin, Ahamad; Folkestad, James E.; Makela, Carole

2013-01-01

This study was conducted to explore the experiences of Malaysian secondary students with visual impairments in using digital talking textbooks (DTTs) to assist their learning. Data were obtained from individual in-depth interviews. An interpretative phenomenological analysis (IPA) was used to understand the findings and confirm the emergent…
Islam and Muslim Life in Current Bavarian Geography Textbooks

ERIC Educational Resources Information Center

Zecha, Stefanie; Popp, Stephan; Yasar, Aysun

2016-01-01

This paper investigates the Islam and Muslim life in German textbooks. The study is based on the analysis of current Geography textbooks in Bavarian secondary schools. As a first step, the authors developed a system for objective analysis of the textbooks that structures the content in categories. In a second step, the authors used the qualitative…
A Systematic Review and Meta-Analysis of Indicated Interventions to Increase School Attendance

ERIC Educational Resources Information Center

Maynard, Brandy R.; Tyson-McCrea, Katherine; Pigott, Therese; Kelly, Michael

2011-01-01

The main objective of this systematic review and meta-analysis was to examine the effects of intervention programs on school attendance behaviors of elementary and secondary school students to inform policy and practice. The specific questions guiding this study were: (1) Do indicated programs with a goal of increasing student attendance affect…
Exploring Asian Students' Citizenship Values and Their Relationship to Civic Knowledge and School Participation

ERIC Educational Resources Information Center

Kennedy, Kerry J.; Kuang, Xiaoxue; Chow, Joseph Kui Foon

2013-01-01

Empirical evidence of Asian students' traditional citizenship values was provided in the Asian Regional Module (ARM) of the International Civic and Citizenship Study. This paper is based on a secondary analysis of the ARM data. Three issues are addressed. First, a theoretical analysis of the ARM constructs contributes to their construct validity.…
School- and Family-Level Socioeconomic Status and Health Behaviors: Multilevel Analysis of a National Survey in Wales, United Kingdom

ERIC Educational Resources Information Center

Moore, Graham F.; Littlecott, Hannah J.

2015-01-01

Background: Interventions to address inequalities in adolescent health behaviors often target children from less affluent families, or schools in poorer areas. Few studies have examined whether school- or family-level affluence predicts health behaviors independently, or in combination. Methods: This article reports secondary analysis of the Welsh…
Apollo gastrointestinal analysis

NASA Technical Reports Server (NTRS)

Nichols, B. L.; Huang, C. T. L.

1975-01-01

Fecal bile acid patterns for the Apollo 17 flight were studied to determine the cause of diarrhea on the mission. The fecal sterol analysis gave no indication of an infectious diarrhea, or specific, or nonspecific etiology occurring during the entire flight. It is assumed that the gastrointestinal problems encountered are the consequences of altered physiology, perhaps secondary to physical or emotional stress of flight.
2 x 2 Achievement Goals and Achievement Emotions: A Cluster Analysis of Students' Motivation

ERIC Educational Resources Information Center

Jang, Leong Yeok; Liu, Woon Chia

2012-01-01

This study sought to better understand the adoption of multiple achievement goals at an intra-individual level, and its links to emotional well-being, learning, and academic achievement. Participants were 480 Secondary Two students (aged between 13 and 14 years) from two coeducational government schools. Hierarchical cluster analysis revealed the…
Cognitive, Social, and Literacy Competencies: The Chelsea Bank Simulation Project. Year One: Final Report. [Volume 2]: Appendices.

ERIC Educational Resources Information Center

Duffy, Thomas; And Others

This supplementary volume presents appendixes A-E associated with a 1-year study which determined what secondary school students were doing as they engaged in the Chelsea Bank computer software simulation activities. Appendixes present the SCANS Analysis Coding Sheet; coding problem analysis of 50 video segments; student and teacher interview…
Maximizing Effectiveness Trials in PTSD and SUD Through Secondary Analysis: Benefits and Limitations Using the National Institute on Drug Abuse Clinical Trials Network "Women and Trauma" Study as a Case Example.

PubMed

Hien, Denise A; Campbell, Aimee N C; Ruglass, Lesia M; Saavedra, Lissette; Mathews, Abigail G; Kiriakos, Grace; Morgan-Lopez, Antonio

2015-09-01

Recent federal legislation and a renewed focus on integrative care models underscore the need for economical, effective, and science-based behavioral health care treatment. As such, maximizing the impact and reach of treatment research is of great concern. Behavioral health issues, including the frequent co-occurrence of substance use disorders (SUD) and posttraumatic stress disorder (PTSD), are often complex, with a myriad of factors contributing to the success of interventions. Although treatment guides for comorbid SUD/PTSD exist, most patients continue to suffer symptoms following the prescribed treatment course. Further, the study of efficacious treatments has been hampered by methodological challenges (e.g., overreliance on "superiority" designs (i.e., designs structured to test whether or not one treatment statistically surpasses another in terms of effect sizes) and short term interventions). Secondary analyses of randomized controlled clinical trials offer potential benefits to enhance understanding of findings and increase the personalization of treatment. This paper offers a description of the limits of randomized controlled trials as related to SUD/PTSD populations, highlights the benefits and potential pitfalls of secondary analytic techniques, and uses a case example of one of the largest effectiveness trials of behavioral treatment for co-occurring SUD/PTSD conducted within the National Drug Abuse Treatment Clinical Trials Network (NIDA CTN) and producing 19 publications. The paper concludes with implications of this secondary analytic approach to improve addiction researchers' ability to identify best practices for community-based treatment of these disorders. Innovative methods are needed to maximize the benefits of clinical studies and better support SUD/PTSD treatment options for both specialty and non-specialty healthcare settings. Moving forward, planning for and description of secondary analyses in randomized trials should be given equal consideration and care to the primary outcome analysis. Copyright © 2015 Elsevier Inc. All rights reserved.
Investigating the contribution of shipping emissions to atmospheric PM2.5 using a combined source apportionment approach.

PubMed

Lang, Jianlei; Zhou, Ying; Chen, Dongsheng; Xing, Xiaofan; Wei, Lin; Wang, Xiaotong; Zhao, Na; Zhang, Yanyun; Guo, Xiurui; Han, Lihui; Cheng, Shuiyuan

2017-10-01

Many studies have been conducted focusing on the contribution of land emission sources to PM 2.5 in China; however, little attention had been paid to other contributions, especially the secondary contributions from shipping emissions to atmospheric PM 2.5 . In this study, a combined source apportionment approach, including principle component analysis (PCA) and WRF-CMAQ simulation, was applied to identify both primary and secondary contributions from ships to atmospheric PM 2.5 . An intensive PM 2.5 observation was conducted from April 2014 to January 2015 in Qinhuangdao, which was close to the largest energy output port of China. The chemical components analysis results showed that the primary component was the major contributor to PM 2.5 , with proportions of 48.3%, 48.9%, 55.1% and 55.4% in spring, summer, autumn and winter, respectively. The secondary component contributed higher fractions in summer (48.2%) and winter (36.8%), but had lower percentages in spring (30.1%) and autumn (32.7%). The hybrid source apportionment results indicated that the secondary contribution (SC) of shipping emissions to PM 2.5 could not be ignored. The annual average SC was 2.7%, which was comparable to the primary contribution (2.9%). The SC was higher in summer (5.3%), but lower in winter (1.1%). The primary contributions to atmospheric PM 2.5 were 3.0%, 2.5%, 3.4% and 2.7% in spring, summer, autumn and winter, respectively. As for the detailed chemical components, the contributions of shipping emissions were 2.3%, 0.5%, 0.1%, 1.0%, 1.7% and 0.1% to elements & sea salt, primary organic aerosol (POA), element carbon (EC), nitrate, sulfate and secondary organic carbon (SOA), respectively. The results of this study will further the understanding of the implications of shipping emissions in PM 2.5 pollution. Copyright © 2017 Elsevier Ltd. All rights reserved.
Selecting Cases for Intensive Analysis: A Diversity of Goals and Methods

ERIC Educational Resources Information Center

Gerring, John; Cojocaru, Lee

2016-01-01

This study revisits the task of case selection in case study research, proposing a new typology of strategies that is explicit, disaggregated, and relatively comprehensive. A secondary goal is to explore the prospects for case selection by "algorithm," aka "ex ante," "automatic," "quantitative,"…
Cost Differential Analysis: Providing Data for Added Cost Funding

ERIC Educational Resources Information Center

Nystrom, Dennis C.; Hennessy, James V.

1975-01-01

A 1972-73 statewide study conducted in Illinois to develop a cost accounting system which facilitates cost differential ratios for secondary vocational education courses indicated that vocational programs are approximately twice as expensive as nonvocational. Specific cost elements identified in the study provided essential information regarding…
Shifting the balance: conceptualising empowerment in individuals with spinal cord injury.

PubMed

Rohatinsky, Noelle; Goodridge, Donna; Rogers, Marla R; Nickel, Darren; Linassi, Gary

2017-03-01

Empowerment is believed to be an essential element in self-management of disease and the promotion of self-efficacy, and can be defined as the ability of individuals to increase control over aspects of their lives. In contrast, powerlessness in individuals with chronic illness can occur when they perceive that they lack the capacity, authority or resources to affect an outcome. Individuals with spinal cord injuries (SCIs) are at risk for powerlessness and have the potential to become empowered, but these concepts have not been explored within their context. The purpose of this study was to explore how individuals with SCI enact the empowerment process using Lord's (1991) process of empowerment framework. This study used a secondary analysis of a data set obtained from a mixed methods study exploring access to health and social care for 23 persons with SCI in Saskatchewan, Canada. The primary study data were collected from September 2012 to January 2013. The secondary analysis of data utilised a deductive thematic analysis approach and findings were conceptualised and applied to a model that represents the shift in balance between powerlessness and empowerment in individuals with SCI. © 2016 John Wiley & Sons Ltd.
Topographic analysis of lunar secondary craters of Copernicus and implications

NASA Technical Reports Server (NTRS)

Oberbeck, V. R.; Aggarwal, H. R.

1977-01-01

An analysis is conducted of the topography of lunar secondary craters and the associated herringbone pattern observed on lunar topophotomaps. The topography and the patterns are compared with those of crater pairs produced in the laboratory. The results are used to identify secondaries on the lunar uplands. The chain of craters that was selected for mapping and which is described is known to be a secondary impact crater chain produced by material ejected from Copernicus Crater because it lies on a well-developed ray system of Copernicus. Oberbeck et al. (1977) had hypothesized that most lunar areas exhibit more craters smaller than 50 km than are observed on Mars and Mercury because lower lunar gravity permitted more widespread distribution of secondaries for the moon. After removal of basin secondaries it is found that the surfaces of the lunar uplands are only sparsely populated by craters between 5 and 50 km. The lunar uplands appear then similar to the Mercurian terrain.
Comprehensive annotation of secondary metabolite biosynthetic genes and gene clusters of Aspergillus nidulans, A. fumigatus, A. niger and A. oryzae

PubMed Central

2013-01-01

Background Secondary metabolite production, a hallmark of filamentous fungi, is an expanding area of research for the Aspergilli. These compounds are potent chemicals, ranging from deadly toxins to therapeutic antibiotics to potential anti-cancer drugs. The genome sequences for multiple Aspergilli have been determined, and provide a wealth of predictive information about secondary metabolite production. Sequence analysis and gene overexpression strategies have enabled the discovery of novel secondary metabolites and the genes involved in their biosynthesis. The Aspergillus Genome Database (AspGD) provides a central repository for gene annotation and protein information for Aspergillus species. These annotations include Gene Ontology (GO) terms, phenotype data, gene names and descriptions and they are crucial for interpreting both small- and large-scale data and for aiding in the design of new experiments that further Aspergillus research. Results We have manually curated Biological Process GO annotations for all genes in AspGD with recorded functions in secondary metabolite production, adding new GO terms that specifically describe each secondary metabolite. We then leveraged these new annotations to predict roles in secondary metabolism for genes lacking experimental characterization. As a starting point for manually annotating Aspergillus secondary metabolite gene clusters, we used antiSMASH (antibiotics and Secondary Metabolite Analysis SHell) and SMURF (Secondary Metabolite Unknown Regions Finder) algorithms to identify potential clusters in A. nidulans, A. fumigatus, A. niger and A. oryzae, which we subsequently refined through manual curation. Conclusions This set of 266 manually curated secondary metabolite gene clusters will facilitate the investigation of novel Aspergillus secondary metabolites. PMID:23617571

Some links on this page may take you to non-federal websites. Their policies may differ from this site.