The Meaning of Teaching Mathematics: Teacher Positioning's as Embedded in Algebra Teachers' Guides

ERIC Educational Resources Information Center

Suh, Heejoo

2017-01-01

Teacher educators have been examining the professional status of teaching, including defining central practices of teaching, comparing teaching to other professions, and understanding teachers' own perspective via interviews, surveys, and observations. The present study intends to contribute to the discussion by examining the meaning of teaching…

Cognitive and Interpersonal Predictors of Stress Generation in Children of Affectively Ill Parents

ERIC Educational Resources Information Center

Shih, Josephine H.; Abela, John R. Z.; Starrs, Claire

2009-01-01

Stress generation is a process in which individuals, through their depressive symptoms, personal characteristics, and/or behaviors, contribute to the occurrence of stressful life events. While this process has been well documented in adults, few studies have examined it in children. The present study examines whether cognitive and interpersonal…

Examining Teacher Framing, Student Reasoning, and Student Agency in School-Based Citizen Science

ERIC Educational Resources Information Center

Harris, Emily Mae

2017-01-01

This dissertation presents three interrelated studies examining opportunities for student learning through contributory citizen science (CS), where students collect and contribute data to help generate new scientific knowledge. I draw on sociocultural perspectives of learning to analyze three cases where teachers integrated CS into school science,…

Addressing South Carolina's Secondary Level Teacher Attrition Problem: Examining Teachers' Self Efficacy, Attitudes, and Assertions

ERIC Educational Resources Information Center

Guy, Trisha Hargett

2010-01-01

The present study contributes to the limited body of research pertaining to secondary teacher efficacy and its relationship to career persistence, gender, ethnicity, contract status, and years of teaching. In addition, this study examines the concepts of student engagement, instructional strategies, and classroom management as subscales used to…

Complexity Framework for Sustainability: An Analysis of Five Papers

ERIC Educational Resources Information Center

Putnik, Goran D.

2009-01-01

Purpose: The purpose of this paper is to present an examination of the concepts and mechanisms of complexity and learning usability and applicability for management in turbulent environments as well as their examination through the Chaordic system thinking (CST) lenses and framework. Contributing to awareness of how different mechanisms could be…

Speed-Accuracy Trade-Off in Skilled Typewriting: Decomposing the Contributions of Hierarchical Control Loops

ERIC Educational Resources Information Center

Yamaguchi, Motonori; Crump, Matthew J. C.; Logan, Gordon D.

2013-01-01

Typing performance involves hierarchically structured control systems: At the higher level, an outer loop generates a word or a series of words to be typed; at the lower level, an inner loop activates the keystrokes comprising the word in parallel and executes them in the correct order. The present experiments examined contributions of the outer-…

Academic Achievement: The Unique Contribution of Self-Efficacy Beliefs in Self-Regulated Learning beyond Intelligence, Personality Traits, and Self-Esteem

ERIC Educational Resources Information Center

Zuffiano, Antonio; Alessandri, Guido; Gerbino, Maria; Kanacri, Bernadette Paula Luengo; Di Giunta, Laura; Milioni, Michela; Caprara, Gian Vittorio

2013-01-01

The present study examined the contribution of self-efficacy beliefs in self-regulated learning (SESRL) in predicting academic achievement at the end of junior high school above and beyond the effects of previous academic achievement, gender, socioeconomic status, intelligence, personality traits, and self-esteem. Participants included 170 (87…

Audiences Judgements of Speakers Who Use Multimedia as a Presentation Aid: A Contribution to Training and Assessment

ERIC Educational Resources Information Center

Christie, Bruce; Collyer, Jenny

2005-01-01

Multimedia technology in principle may help speakers to deliver more effective presentations. The present study examined what effectiveness might mean in terms of audience reaction. Understanding that may help educators to use multimedia more effectively themselves and to help their students to do so. Descriptors were elicited from audiences in…

Autonomy and its vulnerability: Ricoeur's view on justice as a contribution to care ethics.

PubMed

Hettema, Theo L

2014-11-01

We examine an article of Paul Ricoeur on autonomy and vulnerability. Ricoeur presents the two notions in the field of justice as intricately woven into each other. He analyzes their interdependence on three levels of human agency. Ricoeur's exposition has a focus on judicial judgment. After presenting Ricoeur's argument and an analysis of his main points, the author argues that Ricoeur's reflection lines up with some essential intentions of care ethics. Ricoeur's contribution to care ethics is given in a delicate balance of autonomy and its vulnerability.

Weapon Carrying in Israeli Schools: The Contribution of Individual and School Factors

ERIC Educational Resources Information Center

Khoury-Kassabri, Mona; Astor, Ron Avi; Benbenishty, Rami

2007-01-01

The present study employed an ecological perspective to examine the relative predictive power of individual and school contextual factors on weapon carrying at school. The study is based on a nationally representative sample of 10,400 students in Grades 7 through 11 in 162 schools across Israel. Hierarchical logistic modeling examined the…

Information Communication Technologies in the Classroom: Expanding TAM to Examine Instructor Acceptance and Use

ERIC Educational Resources Information Center

Huntington, Heidi; Worrell, Tracy

2013-01-01

Studies show that use of computer-based information communication technologies (ICTs) can have positive impacts on student motivation and learning. The present study examines the issue of ICT adoption in the classroom by expanding the Technology Acceptance Model to identify factors that contribute to teacher acceptance and use of these…

Playing with Mathematics: Play in Early Childhood as a Context for Mathematical Learning

ERIC Educational Resources Information Center

Mathematics Education Research Group of Australasia, 2010

2010-01-01

Play is an essential part of young children's lives. This symposium highlights the integral role of play in young children's mathematics learning and examines the teacher's role in facilitating and extending this. Papers examine key tenets of play, contributing to theoretical understandings and presenting data on teacher's perceptions of play and…

The Purchase of a Shirt: International Implications.

ERIC Educational Resources Information Center

Dickerson, Kitty G.; Hester, Susan B.

1984-01-01

This study examines the international textile and clothing industry--its unique characteristics, its contributions as a major world employer, and the problem of regulating trade. Presents issues as they relate to consumers. (JOW)

Managing Learning for Performance.

ERIC Educational Resources Information Center

Kuchinke, K. Peter

1995-01-01

Presents findings of organizational learning literature that could substantiate claims of learning organization proponents. Examines four learning processes and their contribution to performance-based learning management: knowledge acquisition, information distribution, information interpretation, and organizational memory. (SK)

The examination of headache activity using time-series research designs.

PubMed

Houle, Timothy T; Remble, Thomas A; Houle, Thomas A

2005-05-01

The majority of research conducted on headache has utilized cross-sectional designs which preclude the examination of dynamic factors and principally rely on group-level effects. The present article describes the application of an individual-oriented process model using time-series analytical techniques. The blending of a time-series approach with an interactive process model allows consideration of the relationships of intra-individual dynamic processes, while not precluding the researcher to examine inter-individual differences. The authors explore the nature of time-series data and present two necessary assumptions underlying the time-series approach. The concept of shock and its contribution to headache activity is also presented. The time-series approach is not without its problems and two such problems are specifically reported: autocorrelation and the distribution of daily observations. The article concludes with the presentation of several analytical techniques suited to examine the time-series interactive process model.

The Contribution of Segmental and Suprasegmental Phonology to Reading Comprehension

PubMed Central

Veenendaal, Nathalie J.; Groen, Margriet A.; Verhoeven, Ludo

2016-01-01

The aim of the present study was to examine the relation between decoding and segmental and suprasegmental phonology, and their contribution to reading comprehension, in the upper primary grades. Following a longitudinal design, the performance of 99 Dutch primary school children on phonological awareness (segmental phonology) and text reading prosody (suprasegmental phonology) in fourth-grade and fifth-grade, and reading comprehension in sixth-grade were examined. In addition, decoding efficiency as a general assessment of reading was examined. Structural path modeling firstly showed that the relation between decoding efficiency and both measures of phonology from fourth- to fifth grade was unidirectional. Secondly, the relation between decoding in fourth- and fifth-grade and reading comprehension in sixth-grade became indirect when segmental and suprasegmental phonology were added to the model. Both factors independently exerted influence on later reading comprehension. This leads to the conclusion that not only segmental, but also suprasegmental phonology, contributes substantially to children's reading development. PMID:27551159

Long-Range Planning for Texas Higher Education.

ERIC Educational Resources Information Center

Texas Higher Education Coordinating Board, Austin.

The report presents results of the first year's effort in developing a master plan for higher education in Texas. The first section highlights contributions of Texas higher education in the areas of research, public service, and teaching. Examined in the next section is the current higher education setting with data on the present status of Texas…

Literary Precocity: An Exceptional Case among Exceptional Cases.

ERIC Educational Resources Information Center

Edmunds, Alan L.; Noel, Kathryn A.

2003-01-01

This article presents the case of Geoffrey, a prolific 5-year-old writer. It examines his writing and how his intrapersonal factors and propitious environment contribute to his prodigious output. Childhood precocity is presented as an age-based comparable rather than as an adult-based predictor. A developmental theory of precocity is considered.…

The Influence of Accelerator Science on Physics Research

NASA Astrophysics Data System (ADS)

Haussecker, Enzo F.; Chao, Alexander W.

2011-06-01

We evaluate accelerator science in the context of its contributions to the physics community. We address the problem of quantifying these contributions and present a scheme for a numerical evaluation of them. We show by using a statistical sample of important developments in modern physics that accelerator science has influenced 28% of post-1938 physicists and also 28% of post-1938 physics research. We also examine how the influence of accelerator science has evolved over time, and show that on average it has contributed to a physics Nobel Prize-winning research every 2.9 years.

"We Know What We're Talking About, Don't We?" An Examination of Girls' Classroom-Based Learning Allegiances

ERIC Educational Resources Information Center

Davies, Julia

2004-01-01

This paper presents data collected from small discussion groups in English classrooms. The project from which this research is taken examines the processes of pupils' learning through talk-related activities and contributes to debates about boys' relative under-achievement in comparison to girls. Although the project as a whole looked at the…

Making an Impression: Portfolios as Instruments of Impression Management for Teachers in Early Childhood Education and Care Centres

ERIC Educational Resources Information Center

Knauf, Helen

2017-01-01

The study presented here examines the contribution of portfolios to the communication between parents and early childhood education and care centres. Using content analysis techniques, 2104 portfolio entries are examined with a view to establishing what impression they are intended to create. While the actual purpose of portfolios emphasizes the…

Junior and Senior High School EFL Teachers' Use of Formative Assessment: A Mixed-Methods Study

ERIC Educational Resources Information Center

Saito, Hidetoshi; Inoi, Shin'ichi

2017-01-01

Despite the rising interest in the practice of formative assessment (FA) in language classrooms, research has rarely examined the factors that contribute to differential use of FA. The present study adopts an explanatory sequential mixed-method design to examine differences in FA use among Japanese junior and senior high school EFL (English as a…

Adolescents' Definitions of Bullying: The Contribution of Age, Gender, and Experience of Bullying

ERIC Educational Resources Information Center

Byrne, Hollie; Dooley, Barbara; Fitzgerald, Amanda; Dolphin, Louise

2016-01-01

The aim of the present research was to examine adolescents' definitions of bullying in a nationally representative sample of adolescents in Ireland. Definitions of bullying were examined according to age, gender, and bullying experiences. A sample of 4358 adolescents aged 12-19 years (M = 14.99 years, SD = 1.63) provided their definitions of…

An Examination of the Value of Service Learning Hours in Broward County Public Schools

ERIC Educational Resources Information Center

Baum, Richard G.; Clement, Russell W.

2006-01-01

The present study was conducted to examine the value of service learning hours to the Broward County community and illustrate the benefits of community service to students as well as the community at large. The total number of service learning hours contributed by Broward County high school students was aggregated from the district's data…

Integrated CAD/CAM: Problems, prognosis, and role of IPAD

NASA Technical Reports Server (NTRS)

Nilson, E. N.

1980-01-01

Major technology problems impede the development and evolution of totally integrated interactive CAD/CAM systems. IPAD is playing an important role in the identification of these problems and is contributing significantly to their solution. It is the purpose of this presentation to examine some of these issues, look at the prognosis of obtaining effective solutions, and point up some of the past and expected contributions of IPAD to this technology.

The Present in Flemish Secondary History Education through the Lens of Written History Exams

ERIC Educational Resources Information Center

Van Nieuwenhuyse, Karel; Wils, Kaat; Clarebout, Geraldine; Verschaffel, Lieven

2015-01-01

The present plays an important part in history education, in particular in efforts to make the study of the past relevant for today. This contribution examines how the relationship between past and present is dealt with in current Flemish secondary history education by analyzing 190 written history exams for the 11th and 12th grade. Ten percent of…

Carbon Nanotube Based Groundwater Remediation: The Case of Trichloroethylene.

PubMed

Jha, Kshitij C; Liu, Zhuonan; Vijwani, Hema; Nadagouda, Mallikarjuna; Mukhopadhyay, Sharmila M; Tsige, Mesfin

2016-07-21

Adsorption of chlorinated organic contaminants (COCs) on carbon nanotubes (CNTs) has been gaining ground as a remedial platform for groundwater treatment. Applications depend on our mechanistic understanding of COC adsorption on CNTs. This paper lays out the nature of competing interactions at play in hybrid, membrane, and pure CNT based systems and presents results with the perspective of existing gaps in design strategies. First, current remediation approaches to trichloroethylene (TCE), the most ubiquitous of the COCs, is presented along with examination of forces contributing to adsorption of analogous contaminants at the molecular level. Second, we present results on TCE adsorption and remediation on pure and hybrid CNT systems with a stress on the specific nature of substrate and molecular architecture that would contribute to competitive adsorption. The delineation of intermolecular interactions that contribute to efficient remediation is needed for custom, scalable field design of purification systems for a wide range of contaminants.

An archival examination of environment and disease in eastern Africa in recent history

NASA Astrophysics Data System (ADS)

Larsen, L.

2012-04-01

In order to better understand present interactions between climate and infectious disease incidence it is important to examine the history of disease outbreaks and burdens, and their likely links with the environment. This paper will present research that is currently being undertaken on the identification and mapping of historic incidences of malaria, schistosomiasis and Rift Valley fever (RVF) in eastern Africa in relation to possible environmental, social, economic and political contributing factors. The research covers the past one hundred years or so and primarily draws on a range of archival documentary sources located in the region and the former imperial centres. The paper will discuss the methodologies employed in the building of a comprehensive historical database. The research is part of a larger EU FP7-funded project which aims to map, examine and anticipate the future risks of the three diseases in eastern Africa in response to environmental change. The paper will outline how the construction of such a historic database allows the contextualization of current climate-disease relationships and can thus contribute to discussions on the effects of changing climate on future disease trends.

Body-Esteem Mediates the Relationship between Self-Esteem and Social Anxiety: The Moderating Roles of Weight and Gender

ERIC Educational Resources Information Center

Abdollahi, Abbas; Abu Talib, Mansor; Reza Vakili Mobarakeh, Mohammad; Momtaz, Vahid; Kavian Mobarake, Roya

2016-01-01

The prevalence of social anxiety during adolescence is high, and it is necessary that we increase our knowledge on the related factors that contribute to social anxiety. The present study sought to examine the relationships among self-esteem, body-esteem, and social anxiety among adolescent students, as well as to examine the mediating role of…

Fronto-striatal contribution to lexical set-shifting.

PubMed

Simard, France; Joanette, Yves; Petrides, Michael; Jubault, Thomas; Madjar, Cécile; Monchi, Oury

2011-05-01

Fronto-striatal circuits in set-shifting have been examined in neuroimaging studies using the Wisconsin Card Sorting Task (WCST) that requires changing the classification rule for cards containing visual stimuli that differ in color, shape, and number. The present study examined whether this fronto-striatal contribution to the planning and execution of set-shifts is similar in a modified sorting task in which lexical rules are applied to word stimuli. Young healthy adults were scanned with functional magnetic resonance imaging while performing the newly developed lexical version of the WCST: the Wisconsin Word Sorting Task. Significant activation was found in a cortico-striatal loop that includes area 47/12 of the ventrolateral prefrontal cortex (PFC), and the caudate nucleus during the planning of a set-shift, and in another that includes the posterior PFC and the putamen during the execution of a set-shift. However, in the present lexical task, additional activation peaks were observed in area 45 of the ventrolateral PFC area during both matching periods. These results provide evidence that the functional contributions of the various fronto-striatal loops are not dependent on the modality of the information to be manipulated but rather on the specific executive processes required.

Geographical Education and Society. Papers Presented at Commission on Geographical Education International Geographical Union (Sitges, Spain, August 25-31, 1986).

ERIC Educational Resources Information Center

Hernando, Agustin, Ed.

Educational discourse is totally completely imbued with the values that affect the societies to which individuals belong. Those in the field of geographical education must examine those values in order to determine what type of geographical education is best for each society. The following papers contribute to this knowledge: "Presentation"…

Examining the Relationship between Immediate Serial Recall and Immediate Free Recall: Common Effects of Phonological Loop Variables but Only Limited Evidence for the Phonological Loop

ERIC Educational Resources Information Center

Spurgeon, Jessica; Ward, Geoff; Matthews, William J.

2014-01-01

We examined the contribution of the phonological loop to immediate free recall (IFR) and immediate serial recall (ISR) of lists of between one and 15 words. Following Baddeley (1986, 2000, 2007, 2012), we assumed that visual words could be recoded into the phonological store when presented silently but that recoding would be prevented by…

Two-photon absorption spectroscopy using intense phase-chirped entangled beams

NASA Astrophysics Data System (ADS)

Svozilík, Jiří; Peřina, Jan; León-Montiel, Roberto de J.

2018-06-01

We numerically analyze the use of intense entangled twin beams for ultra-sensitive spectroscopic measurements in chemical and biological systems. The examined scheme makes use of intense frequency-modulated (chirped) entangled beams to successfully extract information about the intermediate material states that contribute to the two-photon excitation of an absorbing medium. Robustness of the presented method is examined with respect to the applied intervals of the frequency chirp.

Using Hierarchical Linear Modeling to Examine How Individual SLPs Differentially Contribute to Children's Language and Literacy Gains in Public Schools.

PubMed

Farquharson, Kelly; Tambyraja, Sherine R; Logan, Jessica; Justice, Laura M; Schmitt, Mary Beth

2015-08-01

The purpose of this study was twofold: (a) to determine the unique contributions in children's language and literacy gains, over 1 academic year, that are attributable to the individual speech-language pathologist (SLP) and (b) to explore possible child- and SLP-level factors that may further explain SLPs' contributions to children's language and literacy gains. Participants were 288 kindergarten and 1st-grade children with language impairment who were currently receiving school-based language intervention from SLPs. Using hierarchical linear modeling, we partitioned the variance in children's gains in language (i.e., grammar, vocabulary) and literacy (i.e., word decoding) that could be attributed to their individual SLP. Results revealed a significant contribution of individual SLPs to children's gains in grammar, vocabulary, and word decoding. Children's fall language scores and grade were significant predictors of SLPs' contributions, although no SLP-level predictors were significant. The present study makes a first step toward incorporating implementation science and suggests that, for children receiving school-based language intervention, variance in child language and literacy gains in an academic year is at least partially attributable to SLPs. Continued work in this area should examine the possible SLP-level characteristics that may further explicate the relative contributions of SLPs.

Resilience Education.

ERIC Educational Resources Information Center

Brown, Joel H.; D'Emidio-Caston, Marianne; Benard, Bonnie

This book examines how young people who struggle with life's worst conditions somehow manage to overcome adversity, identifying significant factors that contribute to their resilience. The book presents information and decision making skills students need to make good decisions in the face of adversity; learning strategies and teaching techniques…

Assessing Potential of VIIRS Data for Contribution to a Forest Threat Early Warning System

NASA Technical Reports Server (NTRS)

Spruce, Joseph P.

2007-01-01

This viewgraph presentation reviews the contributions by the Rapid Prototyping Capability (RPC) towards using Visible Infrared Imager / Radiometer Suite (VIIRS) data in assessing the damage to forests. The Healthy Forest Restoration Act of 2003 mandates development of national Early Warning System (EWS) for forest threat monitoring and mitigation. NASA Stennis is working with the US Forest Service to develop needed components of this EWS. The use of MODIS data for monitoring forest disturbance at broad regional scales is a componet of this program. This RPC experiment was initiated to assess potential of the MODIS follow-on, VIIRS, for monitoring forest disturbance at broad scales and thereby contributing to the EWS. This presentation reviews the potential use of the VIIRS to examine the damage to forests caused by gyspy moths in the West Virginia and Virginia area.

Examination of the influence of environmental factors on contaminant vapor concentration attenuation factors using the U.S. EPA's vapor intrusion database.

PubMed

Yao, Yijun; Shen, Rui; Pennell, Kelly G; Suuberg, Eric M

2013-01-15

Those charged with the responsibility of estimating the risk posed by vapor intrusion (VI) processes have often looked to information contained in the U.S. Environmental Protection Agency (EPA)'s VI database for insight. Indoor air concentration attenuation factors have always been a key focus of this database, but the roles of different environmental factors in these attenuation processes are still unclear. This study aims to examine the influences of these factors in the context of the information in the VI database. The database shows that the attenuation factors vary over many orders of magnitude and that no simple statistical fluctuation around any typical mean value exists. Thus far, no simple explanation of this phenomenon has been presented. This paper examines various possible contributing factors to the enormous range of observed values, looking at which ones can plausibly contribute to explaining them.

Incorporating Family Function into Chronic Pain Disability: The Role of Catastrophizing

PubMed Central

Akbari, Fatemeh; Dehghani, Mohsen; Khatibi, Ali; Vervoort, Tine

2016-01-01

Background. Observers' responses to pain are recently investigated to more comprehensively explain chronic pain (CP) and disability. However, the role of family context, defined as interference in roles, communication, and problem-solving, and how (i.e., through which mechanisms) these variables contribute to CP related disability have yet to be examined. Objectives. The aim of the present study is to examine family context in relationship to pain catastrophizing, fear of movement, and depression and its role in understanding CP disability. Three different models were examined. Methods. A total sample of 142 patients with musculoskeletal chronic pain was recruited to examine the role of fear of movement, pain intensity, pain catastrophizing, and depression in relationship to family functioning as predictors of disability. Results. Findings indicated that two models showed acceptable fit, but one of them revealed superior fit indices. Results of the model with superior fit indices indicated that family dysfunction may contribute to catastrophic thinking, which, in turn, contributes to patients' disability through increasing fear of movement and depression. Discussion. The current study provides further support for the notion that the impact of emotional and cognitive variables upon CP-related disability can be better understood when we consider the social context of pain patients and family function in particular. PMID:27445620

Incorporating Family Function into Chronic Pain Disability: The Role of Catastrophizing.

PubMed

Akbari, Fatemeh; Dehghani, Mohsen; Khatibi, Ali; Vervoort, Tine

2016-01-01

Background. Observers' responses to pain are recently investigated to more comprehensively explain chronic pain (CP) and disability. However, the role of family context, defined as interference in roles, communication, and problem-solving, and how (i.e., through which mechanisms) these variables contribute to CP related disability have yet to be examined. Objectives. The aim of the present study is to examine family context in relationship to pain catastrophizing, fear of movement, and depression and its role in understanding CP disability. Three different models were examined. Methods. A total sample of 142 patients with musculoskeletal chronic pain was recruited to examine the role of fear of movement, pain intensity, pain catastrophizing, and depression in relationship to family functioning as predictors of disability. Results. Findings indicated that two models showed acceptable fit, but one of them revealed superior fit indices. Results of the model with superior fit indices indicated that family dysfunction may contribute to catastrophic thinking, which, in turn, contributes to patients' disability through increasing fear of movement and depression. Discussion. The current study provides further support for the notion that the impact of emotional and cognitive variables upon CP-related disability can be better understood when we consider the social context of pain patients and family function in particular.

The Contemporary Women's Movement and Women's Education in India

NASA Astrophysics Data System (ADS)

Patel, Ila

1998-03-01

The contemporary women's movement in India (1975-present) has played an important role in bringing gender issues to the forefront of development planning and defining feminist politics. This paper examines how this movement has addressed the issue of women's education. The first section highlights contributions of the social reformist movement in the 19th century and the nationalist movement in promoting women's education. The role of the contemporary women's movement in changing school curricula is examined in the second section, followed by discussion on how women's studies has contributed to redefining knowledge. The fourth section discusses women's empowerment and education from the perspective of the women's movement. The article concludes by highlighting challenges facing the women's movement in promoting women's education for equality and empowerment.

An Examination of University Student-Athletes' Motivations to Contribute

ERIC Educational Resources Information Center

Deal, Colin Jeffery; Camiré, Martin

2016-01-01

Little research has examined why student-athletes contribute. "Contribution" can be defined as the actions taken by individuals that benefit their own well-being or that of their family, community, and civil society. The purpose of this study was to examine university student-athletes' motivations to contribute. Interviews were conducted…

Positive parenting as responsible care: Risks, protective factors, and intervention evaluation.

PubMed

Donato, Silvia; Bertoni, Anna

2017-01-01

In this themed issue of the Journal of Prevention & Intervention in the Community, the first four contributions provide knowledge on factors that can support or hinder positive parenting throughout children's lives. In particular, the first article examined the spillover of work stressors on parenting behaviors and the role of spousal support as a moderator of stress spillover. The second contribution examines the association between parents' promotion of volitional functioning and adopted children's sense of strength of family bonds and belonging to the adoptive family. The third article analyzes the negative impact of intrusive parenting on young adult children's romantic relationship quality and couple identity, and the fourth article examines parents' autonomous and controlled motivations to transmit values to their adolescent children and their associations with parents' socialization goals. Finally, the last two articles present the contents and evaluation of two parenting programs. The fifth article illustrates the development, content, and efficacy of an attachment-based intervention for parenting: the Video-feedback Intervention to promote Positive Parenting and Sensitive Discipline (VIPP-SD); the sixth article presents a qualitative evaluation of a group-based program focused on promoting parents' identity together with parenting skills: The Groups for Family Enrichment_Parent version (GFE_P).

An examination of environmental and genetic contributions to the determinants of suicidal behavior among male twins

PubMed Central

Smith, April Rose; Ribeiro, Jessica; Mikolajewski, Amy; Taylor, Jeanette; Joiner, Thomas; Iacono, William G.

2012-01-01

The purpose of the present study was to examine the relative association of genetic and environmental factors with individual differences in each of the proximal, jointly necessary, and sufficient causes for suicidal behavior, according to the Interpersonal-Psychological Theory of Suicide (IPTS; Joiner, 2005). We examined data on derived scales measuring acquired capability, belongingness, and burdensomeness (the determinants of suicidal behavior, according to theory) from 348 adolescent male twins. Univariate biometrical models were used to estimate the magnitude of additive genetic (A), non-additive genetic (D), shared environmental (C), and nonshared environmental (E) effects associated with the variance in acquired capability, belongingness, and burdensomeness. The best fitting model for the acquired capability allowed for additive genetic and environmental effects, whereas the best fitting model for burdensomeness and belongingness allowed for shared and nonshared environmental effects. The present research extends prior work by specifying the environmental and genetic contributions to the components of the IPTS, and our findings suggest that belongingness and burdensomeness may be more appropriate targets for clinical intervention than acquired capability as these factors may be more malleable or amenable to change. PMID:22417928

Communication Gone Wired: Working toward a "Practiced" Cyberfeminism.

ERIC Educational Resources Information Center

Gruber, Sibylle

1999-01-01

Examines concepts of gender and race in virtual environments by presenting a case study of an African American woman's online personalities. Discusses how her online contributions in a college class discussion influenced her and the group's perspectives on violence and gender issues. (Author/LRW)

Lifestyles/Personal Health Care in Different Occupations.

ERIC Educational Resources Information Center

Anderson, Stuart A.

1981-01-01

The American Academy of Family Physicians initiated a study to identify and examine certain life-style patterns in representative groups of people. This article presents the responses from teachers, including their perceptions of factors contributing to stress, problems at home, and allocation of time. (WD)

University Organization. A Matrix Analysis of the Academic Professions.

ERIC Educational Resources Information Center

Bess, James L.

Using the latest research instruments, including questionnaires, interviews, factor analysis, and matrix construction, the present restraints on professorial effectiveness and the contributions of departmental and university structures to professorial malaise is examined for the purpose of improving ways that administrators can increase faculty…

Current drive by helicon waves

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

Paul, Manash Kumar; Bora, Dhiraj; ITER Organization, Cadarache Centre-building 519, 131008 St. Paul-Lez-Durance

2009-01-01

Helicity in the dynamo field components of helicon wave is examined during the novel study of wave induced helicity current drive. Strong poloidal asymmetry in the wave magnetic field components is observed during helicon discharges formed in a toroidal vacuum chamber of small aspect ratio. High frequency regime is chosen to increase the phase velocity of helicon waves which in turn minimizes the resonant wave-particle interactions and enhances the contribution of the nonresonant current drive mechanisms. Owing to the strong poloidal asymmetry in the wave magnetic field structures, plasma current is driven mostly by the dynamo-electric-field, which arise due tomore » the wave helicity injection by helicon waves. Small, yet finite contribution from the suppressed wave-particle resonance cannot be ruled out in the operational regime examined. A brief discussion on the parametric dependence of plasma current along with numerical estimations of nonresonant components is presented. A close agreement between the numerical estimation and measured plasma current magnitude is obtained during the present investigation.« less

The new final Clinical Skills examination in human medicine in Switzerland: Essential steps of exam development, implementation and evaluation, and central insights from the perspective of the national Working Group

PubMed Central

Berendonk, Christoph; Schirlo, Christian; Balestra, Gianmarco; Bonvin, Raphael; Feller, Sabine; Huber, Philippe; Jünger, Ernst; Monti, Matteo; Schnabel, Kai; Beyeler, Christine; Guttormsen, Sissel; Huwendiek, Sören

2015-01-01

Objective: Since 2011, the new national final examination in human medicine has been implemented in Switzerland, with a structured clinical-practical part in the OSCE format. From the perspective of the national Working Group, the current article describes the essential steps in the development, implementation and evaluation of the Federal Licensing Examination Clinical Skills (FLE CS) as well as the applied quality assurance measures. Finally, central insights gained from the last years are presented. Methods: Based on the principles of action research, the FLE CS is in a constant state of further development. On the foundation of systematically documented experiences from previous years, in the Working Group, unresolved questions are discussed and resulting solution approaches are substantiated (planning), implemented in the examination (implementation) and subsequently evaluated (reflection). The presented results are the product of this iterative procedure. Results: The FLE CS is created by experts from all faculties and subject areas in a multistage process. The examination is administered in German and French on a decentralised basis and consists of twelve interdisciplinary stations per candidate. As important quality assurance measures, the national Review Board (content validation) and the meetings of the standardised patient trainers (standardisation) have proven worthwhile. The statistical analyses show good measurement reliability and support the construct validity of the examination. Among the central insights of the past years, it has been established that the consistent implementation of the principles of action research contributes to the successful further development of the examination. Conclusion: The centrally coordinated, collaborative-iterative process, incorporating experts from all faculties, makes a fundamental contribution to the quality of the FLE CS. The processes and insights presented here can be useful for others planning a similar undertaking. PMID:26483853

Effects of auditory information on self-motion perception during simultaneous presentation of visual shearing motion

PubMed Central

Tanahashi, Shigehito; Ashihara, Kaoru; Ujike, Hiroyasu

2015-01-01

Recent studies have found that self-motion perception induced by simultaneous presentation of visual and auditory motion is facilitated when the directions of visual and auditory motion stimuli are identical. They did not, however, examine possible contributions of auditory motion information for determining direction of self-motion perception. To examine this, a visual stimulus projected on a hemisphere screen and an auditory stimulus presented through headphones were presented separately or simultaneously, depending on experimental conditions. The participant continuously indicated the direction and strength of self-motion during the 130-s experimental trial. When the visual stimulus with a horizontal shearing rotation and the auditory stimulus with a horizontal one-directional rotation were presented simultaneously, the duration and strength of self-motion perceived in the opposite direction of the auditory rotation stimulus were significantly longer and stronger than those perceived in the same direction of the auditory rotation stimulus. However, the auditory stimulus alone could not sufficiently induce self-motion perception, and if it did, its direction was not consistent within each experimental trial. We concluded that auditory motion information can determine perceived direction of self-motion during simultaneous presentation of visual and auditory motion information, at least when visual stimuli moved in opposing directions (around the yaw-axis). We speculate that the contribution of auditory information depends on the plausibility and information balance of visual and auditory information. PMID:26113828

Work and Family Precursors of Burnout in Teachers: Sex Differences

ERIC Educational Resources Information Center

Greenglass, E. R.; Burke, R. J.

1988-01-01

Factors contributing to burnout in female and male teachers are examined. Males scored higher on depersonalization while females experienced more depression, headaches, and role conflict. A model for burnout is presented along with a discussion of the influence of gender roles and employment status. (VM)

Adolescent Pregnancy and Its Delay.

ERIC Educational Resources Information Center

Bell, Lloyd H.

This paper examines some probable reasons for the black adolescent male's contribution to increased pregnancy in the black community. Using a situation analysis, it presents the following testable suppositions: (1) black males' fear of retribution for impregnating a girl has diminished, leading to increased sexual intercourse and ultimately to…

Reading, Perception and Language.

ERIC Educational Resources Information Center

Duane, Drake D., Ed.; Rawson, Margaret B., Ed.

The nine papers in this book discuss aspects of language processing that contribute to reading difficulty. After a summary of the 1974 World Congress on Dyslexia, at which these papers were presented, the following subjects are examined: historical background and educational treatment of dyslexia; the structure of language; neuroanatomy underlying…

Psychopathology, Temperament and Unintentional Injury: Cross-Sectional and Longitudinal Relationships

ERIC Educational Resources Information Center

Rowe, Richard; Simonoff, Emily; Silberg, Judy L.

2007-01-01

Background: Growing evidence indicates a link between unintentional injury and both disruptive and emotional psychopathology. We present further evidence of these associations and address the underlying mechanisms. We also examine the genetic contribution to unintentional injury. Methods: The Virginia Twin Study of Adolescent Behavioral…

Catholics in the REA, 1903-1953

ERIC Educational Resources Information Center

Elias, John L.

2004-01-01

This article describes the involvement of Roman Catholics in the Religious Education Association during the first 50 years of its existence. It examines attitudes of Protestants toward Catholics expressed in journal articles, convention speeches, and archival material. It presents the contributions of Roman Catholics at conventions and in journal…

Elaborating the Conceptual Space of Information-Seeking Phenomena

ERIC Educational Resources Information Center

Savolainen, Reijo

2016-01-01

Introduction: The article contributes to conceptual studies of information behaviour research by examining the conceptualisations of information seeking and related terms such as information search and browsing. Method: The study builds on Bates' integrated model of information seeking and searching, originally presented in 2002. The model was…

Active Interventions in Clinical Practice: Contributions of Gestalt Therapy.

ERIC Educational Resources Information Center

Lammert, Marilyn; Dolan, Mary M.

1983-01-01

Describes two dimensions of Gestalt therapy that can enhance clinical practice--orientation to the present and active-experimental style--and examines them in relation to some traditional principles of practice. Gestalt theory offers a method of discovery that is a combination of phenomenology and behaviorism. (JAC)

Global Perspectives on Multilingualism: Unity in Diversity

ERIC Educational Resources Information Center

Torres-Guzman, Maria E., Ed.; Gomez, Joel, Ed.

2009-01-01

In this timely volume, international scholars examine how multilingual schooling is handled in schools across the world with a series of case studies from South Africa, Nigeria, Germany, Colombia, Slovakia, New Zealand, and Taiwan. Presenting new contributions arising from the varied contexts of multilingualism today, this collection urges…

Role Specific Pupil/Science Teacher Interpersonal Compatibility and Science Attitudes.

ERIC Educational Resources Information Center

Vargo, Robert A.; Schafer, Larry E.

As science teaching becomes more inquiry oriented, science teachers are interacting more frequently with individual students. With increased interaction, pupil/science teacher interpersonal compatibility most likely contributes significantly to the development of students' science attitudes. The purpose of the present study was to examine the…

Enhancing Community Service Learning via Practical Learning Communities

ERIC Educational Resources Information Center

Ronen, Ilana; Shemer-Elkiyam, Tal

2015-01-01

The advantages of learning communities focused on analyzing social issues and educational repercussions in the field are presented in this study. The research examines the contribution of a learning community to enhancing student teachers' responsibility and their social involvement. The assumption was that participating in learning community…

Family Disorganization, Sleep Hygiene, and Adolescent Sleep Disturbance

ERIC Educational Resources Information Center

Billows, Michael; Gradisar, Michael; Dohnt, Hayley; Johnston, Anna; McCappin, Stephanie; Hudson, Jennifer

2009-01-01

The link between sleep hygiene and adolescent sleep is well documented, though evidence suggests contributions from other factors, particularly the family environment. The present study examined whether sleep hygiene mediated the relationship between family disorganization and self-reported sleep onset latency, total sleep time, and daytime…

Longitudinal Changes in Combat-Related Posttraumatic Stress Disorder Among Operation Enduring Freedom/Operation Iraqi Freedom/Operation New Dawn Veterans With Hazardous Alcohol Use: The Role of Avoidance Coping.

PubMed

Lee, Joohyun; Possemato, Kyle; Ouimette, Paige C

2017-10-01

Military personnel who have experienced combat trauma are at risk for developing posttraumatic stress disorder (PTSD). A greater recognition of the complex array of vulnerability factors that contribute to PTSD severity has led researchers to examine other non-combat-related factors. This longitudinal study examined a number of pre-, peri-, and postdeployment factors hypothesized to contribute to PTSD symptomatology among returning Operation Enduring Freedom/Operation Iraqi Freedom/Operation New Dawn veterans presenting with at least subthreshold PTSD symptoms and hazardous alcohol use in a primary care setting. Purported risk factors included childhood family environment, severity of combat exposure, postdeployment social support, alcohol dependence severity, and an avoidant coping style. At baseline, postdeployment social support and avoidant coping contributed to PTSD severity. Only avoidant coping was associated with changes in PTSD symptom at 1-year follow-up. Reducing avoidant coping may deter the maintenance of PTSD among veterans with PTSD symptoms and hazardous alcohol use.

E-Books as a Support for Young Children's Language and Literacy: The Case of Hebrew-Speaking Children

ERIC Educational Resources Information Center

Korat, Ofra; Shamir, Adina; Segal-Drori, Ora

2014-01-01

In this paper, we present a series of studies performed in the last decade that examined the contribution of e-books reading to the language and literacy of young Hebrew-speaking children. Children worked with two e-books designed by the researchers to achieve this aim. We present the effect of reading these e-books on the language and literacy of…

USTC & TBA Guidelines for Tennis Court & Running Track Construction.

ERIC Educational Resources Information Center

United States Tennis Court & Track Builders Association.

Guidelines are presented on tennis court and track and field construction that reflect the latest developments in construction technology, methodology, and practice. Based on contributions from experienced certified tennis court and track builders, material suppliers and design professionals, this manual examines each of the critical areas of…

Growing up with Social Networks and Online Communities

ERIC Educational Resources Information Center

Strom, Paris; Strom, Robert

2012-01-01

This presentation examines child and adolescent social networking with an emphasis on how this unprecedented form of communication can be used to contribute to healthy growth and development. Most literature about child and adolescent relationships reflects yesterday's world, a time when face-to-face encounters were the only concern. Students saw…

Studies on Academics and Modes of Inquiry.

ERIC Educational Resources Information Center

Blackburn, Robert T., Ed.

Six papers are presented from an American Educational Research Association symposium. The symposium explored the kind of research needed for increasing understanding of college and university faculty and examined the manner in which different scholarly techniques can contribute. The symposium objective was to open for discussion four modes for…

Are Students Customers in Finnish Higher Education?

ERIC Educational Resources Information Center

Vuori, Johanna

2013-01-01

This study examines Finnish higher education students' perceptions of whether students are customers, based on qualitative interview data. The article contributes to the discussion on students as customers by giving attention to students' own voices from a country where tuition fees are not generally collected. The data are presented and analysed…

Handwriting Instruction: A Commentary on Five Studies

ERIC Educational Resources Information Center

Graham, Steve

2018-01-01

Handwriting is still a prominent mode for composing for both children and adults As a result, it is important that developing writers acquire fluent and legible handwriting. This article examines the five investigations that were presented in this special issue on handwriting instruction, providing a summary of their collective contributions as…

Peer Instruction: An Evaluation of Its Theory, Application, and Contribution

ERIC Educational Resources Information Center

Gok, Tolga; Gok, Ozge

2017-01-01

Many qualitative and quantitative studies performed on peer instruction based on interactive engagement method used in many different disciplines and courses were reviewed in the present study. The researchers examined the effects of peer instruction on students' cognitive skills (conceptual learning, problem solving, reasoning ability, etc.) and…

Seminar for Master's Thesis Projects: Promoting Students' Self-Regulation

ERIC Educational Resources Information Center

Miedijensky, Shirley; Lichtinger, Einat

2016-01-01

This study presents a thesis seminar model aimed at promoting students' self-regulation. Students' perceptions regarding the contribution of the seminar to their learning process were characterized and the seminar's effect upon their self-regulation expressions was examined. Data was collected using questionnaires and analyzed thematically. The…

Chronic Glucocorticoid Hypersecretion in Cushing's Syndrome Exacerbates Cognitive Aging

ERIC Educational Resources Information Center

Michaud, Kathy; Forget, Helene; Cohen, Henri

2009-01-01

Cumulative exposure to glucocorticoid hormones (GC) over the lifespan has been associated with cognitive impairment and may contribute to physical and cognitive degeneration in aging. The objective of the present study was to examine whether the pattern of cognitive deficits in patients with Cushing's syndrome (CS), a disorder characterized by…

Counterdependence at Work: Relationships with Social Support, Control Beliefs, and Self-Monitoring

ERIC Educational Resources Information Center

Gianakos, Irene

2013-01-01

Although styles of self-reliance theoretically arise from early attachments, other research suggests the influence of attachment operates indirectly through internalized but modifiable beliefs about the self and others. The present study examined the relative contribution of parental attachment, social support perceptions, control beliefs, and…

The Transformative Intellectual: An Examination of Henry Giroux's Ethics

ERIC Educational Resources Information Center

Kashani, Tony

2012-01-01

This article explores Henry Giroux's contributions to critical pedagogy. The author demonstrates how Giroux, as a public intellectual, has found his Ethics in the right place. The author further argues that Giroux's Ethics of virtue are present not only in the public person but also in his transformative writing.

Modality Specificity and Integration in Working Memory: Insights from Visuospatial Bootstrapping

ERIC Educational Resources Information Center

Allen, Richard J.; Havelka, Jelena; Falcon, Thomas; Evans, Sally; Darling, Stephen

2015-01-01

The question of how meaningful associations between verbal and spatial information might be utilized to facilitate working memory performance is potentially highly instructive for models of memory function. The present study explored how separable processing capacities within specialized domains might each contribute to this, by examining the…

Students' Perceptions of Parental and Teacher Academic Involvement: Consequences on Achievement Goals

ERIC Educational Resources Information Center

Regner, Isabelle; Loose, Florence; Dumas, Florence

2009-01-01

The present study examined whether students' perceptions of two major facets of parental and teacher academic involvement (i.e., academic support and academic monitoring), contribute to the process of students' achievement goals adoption. French junior high-school students completed two questionnaires assessing first their perceptions of parental…

Reexamining the Correlates of Adolescent Violent Victimization: The Importance of Exposure, Guardianship, and Target Characteristics

ERIC Educational Resources Information Center

Tillyer, Marie Skubak; Tillyer, Rob; Miller, Holly Ventura; Pangrac, Rebekah

2011-01-01

The present study examines the relative contributions of various theoretical constructs to violent victimization by operationalizing multiple measures of exposure to motivated offenders, guardianship, and target characteristics. Using a nationally representative sample of American adolescents, we conducted principal components factor analysis and…

"JTPE": A 30-Year Retrospective of Published Research

ERIC Educational Resources Information Center

Rhoades, Jesse L.; Woods, Amelia M.; Daum, David N.; Ellison, Douglas; Trendowski, Thomas N.

2016-01-01

This case study presents an examination of 30 years of "Journal of Teaching in Physical Education" ("JTPE") research. The purpose of this study was to provide a retrospective view of "JTPE" and its contribution to the field of physical education. In this effort the current study employed citation analysis, co-author…

Student Perceptions of Effectiveness: An Examination of the Influence of Student Biases

ERIC Educational Resources Information Center

Sprinkle, Julie E.

2008-01-01

Previous research on instruction in higher education suggests that students' personal biases strongly influence their perceptions of professor/instructor effectiveness. However, there is disagreement about the degree and direction of this influence. The present article seeks to contribute to this often conflicting body of work. The researcher…

Unlocking Boys' Potential

ERIC Educational Resources Information Center

Reichert, Michael C.

2016-01-01

Long stereotyped as not being interested in building relationships with teachers, boys actually search for--and are in need of--teachers who make meaningful connections with them, writes Reichert in this article. The author examines how school practices of the past and present have contributed to the so-called gender achievement gap and stresses…

Understanding Foreign Language Learning Strategies: A Validation Study

ERIC Educational Resources Information Center

Tragant, Elsa; Thompson, Marilyn S.; Victori, Mia

2013-01-01

The present work aims to contribute to our understanding of the underlying dimensions of language learning strategies in foreign language contexts. The study analyzes alternative factor structures underlying a recently developed instrument (Tragant and Victori, 2012) and it includes the age factor in the examination of its construct validity. The…

Understanding the Microstructure and Macrostructure of Passages among Chinese Elementary School Children

ERIC Educational Resources Information Center

Lo, Lap-yan; Ho, Connie Suk-han; Wong, Yau-kai; Chan, David Wai-ock; Chung, Kevin Kien-hoa

2016-01-01

Understanding the microstructure and macrostructure of passages is important for reading comprehension. What cognitive-linguistic skills may contribute to understanding these two levels of structures has rarely been investigated. The present study examined whether some word-level and text-level cognitive-linguistic skills may contribute…

Children's Understanding of Television: Research on Attention and Comprehension.

ERIC Educational Resources Information Center

Bryant, Jennings, Ed.; Anderson, Daniel R., Ed.

Major collections of research contributions on the fundamental nature of children's television viewing have been compiled in this book. Each chapter presents the assumptions, methodologies, theories, and major research findings of a particular research program or tradition. Chapters 1 through 4 are directed toward the examination of children's…

Segregation and the Underrepresentation of Blacks and Hispanics in Gifted Education: Social Inequality and Deficit Paradigms

ERIC Educational Resources Information Center

Ford, Donna Y.

2014-01-01

This article examines the underrepresentation of African American and Hispanic students in gifted education, proposing that social inequality, deficit thinking, and microaggressions contribute to the inequitable segregated programs. Underrepresentation trends are presented, along with methods for calculating underrepresentation and inequity.…

MANPOWER FOR CALIFORNIA HOSPITALS, 1964-1975.

ERIC Educational Resources Information Center

California State Commission on Manpower, Automation, and Technology, Sacramento.

AN EXAMINATION OF THE HOSPITAL AND NURSING AND CONVALESCENT HOME INDUSTRY IN 1964 AND EMPLOYMENT PROJECTIONS ARE PRESENTED AS AN INITIAL CONTRIBUTION TO THE DEVELOPMENT OF AN ONGOING MANPOWER INFORMATION PROGRAM IN THE STATE. DATA WERE COMPILED FROM POPULATION PROJECTIONS BY THE CALIFORNIA DEPARTMENT OF FINANCE, WAGE SURVEY STUDIES BY THE…

A Principal Components Analysis of Dynamic Spatial Memory Biases

ERIC Educational Resources Information Center

Motes, Michael A.; Hubbard, Timothy L.; Courtney, Jon R.; Rypma, Bart

2008-01-01

Research has shown that spatial memory for moving targets is often biased in the direction of implied momentum and implied gravity, suggesting that representations of the subjective experiences of these physical principles contribute to such biases. The present study examined the association between these spatial memory biases. Observers viewed…

The Contemporary Women's Movement and Women's Education in India.

ERIC Educational Resources Information Center

Patel, Ila

1998-01-01

Examines how the contemporary women's movement in India (1975-present) has addressed the issue of women's education. Highlights contributions of the 19th-century social-reformist movement and the nationalist movement. Details the role of the contemporary women's movement in redefining knowledge and the curriculum. Concludes with challenges facing…

Whole Grains Contribute Only a Small Proportion of Dietary Fiber to the U.S. Diet.

PubMed

Kranz, Sibylle; Dodd, Kevin W; Juan, Wen Yen; Johnson, LuAnn K; Jahns, Lisa

2017-02-17

Dietary fiber (DF), found in whole fruits, vegetables, and whole grains (WG), is considered a nutrient of concern in the US diet and increased consumption is recommended. The present study was designed to highlight this critical importance of the difference between WG, high-fiber WG, and sources of fiber that are not from WG. The study is based on the two-day diets reported consumed by the nationally representative sample of Americans participating in What We Eat In America, the dietary component of the National Health and Nutrition Examination Survey from 2003-2010. Foods consumed were classified into tertiles of DF and WG and the contribution of fiber by differing levels of WG content were examined. Foods containing high amounts of WG and DF only contributed about 7% of total fiber intake. Overall, grain-based foods contributed 54.5% of all DF consumed. Approximately 39% of DF came from grain foods that contained no WG, rather these foods contained refined grains, which contain only small amounts of DF but are consumed in large quantities. All WG-containing foods combined contributed a total of 15.3% of DF in the American diet. Thus, public health messaging needs to be changed to specifically encourage consumption of WG foods with high levels of DF to address both recommendations.

Stable structures of coalitions in competitive and altruistic military teams

NASA Astrophysics Data System (ADS)

Aurangzeb, M.; Mikulski, D.; Hudas, G.; Lewis, F. L.; Gu, Edward

2013-05-01

In heterogeneous battlefield teams, the balance between team and individual objectives forms the basis for the internal topological structure of teams. The stability of team structure is studied by presenting a graphical coalitional game (GCG) with Positional Advantage (PA). PA is Shapley value strengthened by the Axioms of value. The notion of team and individual objectives is studied by defining altruistic and competitive contribution made by an individual; altruistic and competitive contributions made by an agent are components of its total or marginal contribution. Moreover, the paper examines dynamic team effects by defining three online sequential decision games based on marginal, competitive and altruistic contributions of the individuals towards team. The stable graphs under these sequential decision games are studied and found to be structurally connected, complete, or tree respectively.

Talking about taste: using a discursive psychological approach to examine challenges to food evaluations.

PubMed

Wiggins, Sally

2004-08-01

This study is concerned with developing the interdisciplinary nature of food research, and with examining eating practices as they occur in everyday situations. The aim is to demonstrate how discursive approaches may contribute to eating research using a specific analytical example. A discursive psychological approach is used to examine mealtime conversations from 10 families with the analysis focusing on how food evaluations are challenged in interaction-for example, asking someone to justify what they think is 'wrong' with the food. Data are presented with 7 examples of the 30 challenges that were found within the data corpus. The analysis demonstrates how people may be held accountable for their expressed taste preferences when being challenged, and how this contributes to our understanding of eating as primarily an individual and embodied experience. It is argued that a specific and detailed analysis of eating interactions provides an alternative way of conceptualising food evaluations as discursive rather than mentalistic concepts. A discursive approach also opens up practical ways in which the social and familial aspects of eating may be examined as they occur as part of food practices.

Does the stress generation hypothesis apply to eating disorders?: an examination of stress generation in eating, depressive, and anxiety symptoms.

PubMed

Bodell, Lindsay P; Hames, Jennifer L; Holm-Denoma, Jill M; Smith, April R; Gordon, Kathryn H; Joiner, Thomas E

2012-12-15

The stress generation hypothesis posits that individuals actively contribute to stress in their lives. Although stress generation has been studied frequently in the context of depression, few studies have examined whether this stress generation process is unique to depression or whether it occurs in other disorders. Although evidence suggests that stress contributes to the development of eating disorders, it is unclear whether eating disorders contribute to subsequent stress. A prospective design was used to examine the influence of eating disorder symptoms on negative life stressors. Two hundred and ninety female undergraduates completed questionnaires at two time points that examined eating disorder, depressive and anxiety symptoms and the presence of negative life events. Regression analyses found that while eating disorder symptoms (i.e. bulimic symptoms and drive for thinness) were independent, significant predictors of negative life events, they did not predict negative life events above and beyond symptoms of depression. Limitations include the use of self-report measures and a college-based sample, which may limit generalizability of the results. Findings suggest that if stress generation is present in individuals with symptoms of eating disorders, it is likely attributable to symptoms of depression. Thus, it may be important for clinicians to target depressive symptoms in order to reduce the frequency of negative life stressors among individuals with eating disorders. Copyright © 2012 Elsevier B.V. All rights reserved.

[Nodular toxoplasmosis as a diagnostic and therapeutic problem].

PubMed

Zaorski, P; Kozłowski, J

1999-01-01

Enlargement of lymph nodes of the neck, slightly elevated body temperature and discomfort are symptoms characteristic of many illnesses. One of these can be toxoplasmosis. Because the rarity of its occurrence, sometimes toxoplasmosis may be last to be recognized. In many cases absence of specific additional examination guidelines can contribute to several problems with correct diagnosis. At the present time, the most reliable sample analysis methods are the examination of levels of antibodies IgG and IgM, and the histopathological verification. The authors also indicate that varying therapeutic effects using prophilactic treatment and insufficient additional examination could lead to diagnostic problems.

Monitoring nonadiabatic avoided crossing dynamics in molecules by ultrafast X-ray diffraction

DOE PAGES

Kowalewski, Markus; Bennett, Kochise; Mukamel, Shaul

2017-05-26

We examine time-resolved X-ray diffraction from molecules in the gas phase which undergo nonadiabatic avoided-crossing dynamics involving strongly coupled electrons and nuclei. Several contributions to the signal are identified, representing (in decreasing strength) elastic scattering, contributions of the electronic coherences created by nonadiabatic couplings in the avoided crossing regime, and inelastic scattering. The former probes the charge density and delivers direct information on the evolving molecular geometry. The latter two contributions are weaker and carry spatial information through the transition charge densities (off-diagonal elements of the charge-density operator). Furthermore, simulations are presented for the nonadiabatic harpooning process in the excitedmore » state of sodium fluoride.« less

Promoting Positive Future Expectations During Adolescence: The Role of Assets.

PubMed

Stoddard, Sarah A; Pierce, Jennifer

2015-12-01

Positive future expectations can facilitate optimal development and contribute to healthier outcomes for youth. Researchers suggest that internal resources and community-level factors may influence adolescent future expectations, yet little is known about the processes through which these benefits are conferred. The present study examined the relationship between contribution to community, neighborhood collective efficacy, purpose, hope and future expectations, and tested a mediation model that linked contribution to community and collective efficacy with future expectations through purpose and hope in a sample of 7th grade youth (N = 196; Mage = 12.39; 60 % female; 40 % African American; 71 % economically disadvantaged). Greater collective efficacy and contribution to community predicted higher levels of hope and purpose. Higher levels of hope and purpose predicted more positive future expectations. Contribution to community and neighborhood collective efficacy indirectly predicted future expectations via hope. Implications of the findings and suggestions for future research are discussed.

Promoting Positive Future Expectations during Adolescence: The Role of Assets

PubMed Central

Stoddard, Sarah A.; Pierce, Jennifer

2015-01-01

Positive future expectations can facilitate optimal development and contribute to healthier outcomes for youth. Researchers suggest that internal resources and community-level factors may influence adolescent future expectations, yet little is known about the processes through which these benefits are conferred. The present study examined the relationship between contribution to community, neighborhood collective efficacy, purpose, hope and future expectations, and tested a mediation model that linked contribution to community and collective efficacy with future expectations through purpose and hope in a sample of 7th grade youth (N = 196; Mage = 12.39; 60% female; 40% African American; 71% economically disadvantaged). Greater collective efficacy and contribution to community predicted higher levels of hope and purpose. Higher levels of hope and purpose predicted more positive future expectations. Contribution to community and neighborhood collective efficacy indirectly predicted future expectations via hope. Implications of the findings and suggestions for future research are discussed. PMID:26385095

Contributions of late-type dwarf stars to the soft X-ray diffuse background

NASA Technical Reports Server (NTRS)

Schmitt, J. H. M. M.; Snowden, S. L.

1990-01-01

Comprehensive calculations of the contribution of late-type dwarf stars to the soft X-ray diffuse background are presented. The mean X-ray luminosity as derived from optically and X-ray selected samples is examined, using the Bahcall-Soneira Galaxy model to describe the spatial distribution of stars and recent results on the X-ray spectra. The model calculations are compared with the Wisconsin sky maps in the C, M1, M2, I and J bands to assess the uncertainties of the calculations. Contributions of up to 10 percent to the M2 and I band background at high Galactic latitudes are found, while at low Galactic latitudes late-type stars contribute up to 40 percent of the background. However, a Galactic ridge as well as a relatively isotropic component still remains unexplained, even with the added contribution of the extrapolated high-energy power law.

The contribution of different forms of violence exposure to internalizing and externalizing symptoms among young South African adolescents.

PubMed

du Plessis, Bernice; Kaminer, Debra; Hardy, Anneli; Benjamin, Arlene

2015-07-01

While many youth are exposed to multiple forms of co-occurring violence, the comparative impact of different forms of violence on the mental health of children and adolescents has not been clearly established. Studies from low and middle income countries in particular are lacking. The present study examined the contribution of different forms of violence to internalizing and externalizing symptoms among young adolescents in South Africa. A community-based sample of 616 high school learners completed self-report scales assessing exposure to six different forms of violence and the severity of depression, aggression and conduct disorder symptoms. In bivariate analyses, all six forms of violence were significantly associated with internalizing and externalizing difficulties. When the contribution of all forms of violence to mental health outcomes was examined simultaneously, domestic victimization emerged as the strongest predictor of both internalizing and externalizing difficulties. Cumulative exposure to other forms of violence contributed further to the prediction of aggression and conduct disorder, but not depression. Recommendations for future research, and the implications of the findings for prioritizing the development of violence prevention and intervention initiatives in the South African context, are considered. Copyright © 2015 Elsevier Ltd. All rights reserved.

Eye movements and serial memory for visual-spatial information: does time spent fixating contribute to recall?

PubMed

Saint-Aubin, Jean; Tremblay, Sébastien; Jalbert, Annie

2007-01-01

This research investigated the nature of encoding and its contribution to serial recall for visual-spatial information. In order to do so, we examined the relationship between fixation duration and recall performance. Using the dot task--a series of seven dots spatially distributed on a monitor screen is presented sequentially for immediate recall--performance and eye-tracking data were recorded during the presentation of the to-be-remembered items. When participants were free to move their eyes at their will, both fixation durations and probability of correct recall decreased as a function of serial position. Furthermore, imposing constant durations of fixation across all serial positions had a beneficial impact (though relatively small) on item but not order recall. Great care was taken to isolate the effect of fixation duration from that of presentation duration. Although eye movement at encoding contributes to immediate memory, it is not decisive in shaping serial recall performance. Our results also provide further evidence that the distinction between item and order information, well-established in the verbal domain, extends to visual-spatial information.

Societal Ramifications of Ethnicity in the Suburbs.

ERIC Educational Resources Information Center

Femminella, Francis X.

The development of social science terminology about ethnicity in the United States is traced from colonial times to the present, and conflict among ethnic groups is examined in relation to contemporary problems in the suburbs of New York. Early in U.S. history, immigrating ethnic groups were thought to contribute to the melting pot character of…

Duration of Exposure and the Dose-Response Model of PTSD

ERIC Educational Resources Information Center

Kaysen, Debra; Rosen, Gerald; Bowman, Marilyn; Resick, Patricia A.

2010-01-01

A dose-response model underlies posttraumatic stress disorder (PTSD) and posits a relationship between event magnitude and clinical outcome. The present study examines whether one index of event magnitude--duration of exposure--contributes to risk of PTSD among female victims of sexual assault. Findings support a small but significant contribution…

Determinants of Teachers' Collaborative Use of Information and Communications Technology for Teaching and Learning: A European Perspective

ERIC Educational Resources Information Center

Drossel, Kerstin; Eickelmann, Birgit; Schulz-Zander, Renate

2017-01-01

Collaboration between teachers constitutes an important predictor for the successful implementation of digital media in schools and teaching. The present contribution examines the supporting conditions of ICT (information and communications technology)-related teacher collaboration as a feature of school quality in six selected European…

"Through the Kaleidoscope": Intersections between Theoretical Perspectives and Classroom Implications in Critical Global Citizenship Education

ERIC Educational Resources Information Center

Eidoo, Sameena; Ingram, Leigh-Anne; MacDonald, Angela; Nabavi, Maryam; Pashby, Karen; Stille, Saskia

2011-01-01

This paper presents a multi-voiced examination of educating for global citizenship from critical, interdisciplinary perspectives. The paper explores how insights from theoretical work on multiculturalism, race, religion, gender, language and literacy, and eco-justice can contribute to a critical global citizenship education practice. It reports…

Exposure to Terrorism and Violent Behavior among Adolescents in Israel

ERIC Educational Resources Information Center

Even-Chen, Merav Solomon; Itzhaky, Haya

2007-01-01

It is commonly assumed that exposure to terrorism may lead to violent behavior, but there is little empirical research on the relationship between these two variables. In the present paper, we examined the extent to which exposure to terrorism contributes to violent behavior among adolescents. In addition, we considered the role of environmental…

Children and Violence: An Undergraduate Course Model of Interdisciplinary Co-Teaching

ERIC Educational Resources Information Center

Bucci, Linda; Trantham, Sidney

2014-01-01

The integration of co-teaching across disciplines in higher education is an approach that enhances the learning experience for both students and faculty. The process of examining material from the perspective of two disciplines contributes to critical thinking skills beyond traditional pedagogical approaches. This article presents a model for…

What Fifth-Grade Students Reveal about Their Literacies by Writing and Telling Narratives

ERIC Educational Resources Information Center

Davis, Dennis S.

2013-01-01

Written and oral literacy narratives produced by seven fifth-grade students are examined to identify the literacy identities students construct when narrating their past and present experiences with reading and writing. The narrative analyses reveal four major findings: 1. The students who contributed to this study have experienced literacy in…

Cyberbully, Cybervictim, and Forgiveness among Indonesian High School Students

ERIC Educational Resources Information Center

Safaria, Triantoro; Tentama, Fatwa; Suyono, Hadi

2016-01-01

Cyberbullying has been commonplace practice among Indonesian teenagers engaging in on-line space. However, this phenomenon has not been extensively researched in the context of Indonesia. This present study aims to examine the extent to which level of forgiveness contribute to varying degrees of cyberbullying. It is a quantitative in which the…

Imitation and Creativity: Beneficial Effects of Propulsion Strategies and Specificity

ERIC Educational Resources Information Center

Mecca, Jensen T.; Mumford, Michael D.

2014-01-01

Prior studies examining imitation of exemplar solutions have produced a mixed pattern of findings with some studies indicating that exemplar imitation contributes to creative problem-solving and other studies indicating that it may inhibit creative problem-solving. In the present effort, it is argued that the effects of exemplar imitation on…

Training for Creativity and Innovation in Small Enterprises in Ethiopia

ERIC Educational Resources Information Center

Mihret Dessie, Wondifraw; Shumetie Ademe, Arega

2017-01-01

Policy makers recognize the role of small businesses in bringing about economic growth and reducing or eliminating poverty, and training can contribute significantly to this process. The present study adds to the small firm literature by examining whether training encourages small firms to be more creative and innovative. It does so by…

Is the Agency Shop Appropriate for Negotiated Settlements in Public Education?

ERIC Educational Resources Information Center

Ellmann, Erwin B.

In this report, the author presents examples from the field of private labor relations that demonstrate the value of agency shops. He argues that agency shops contribute to union stability which stability leads to a more businesslike union-management relationship. The author examines State and Federal constitutions to determine the validity of…

Ghana. Part One-Class Materials. Development Studies No. 1, Third Impression.

ERIC Educational Resources Information Center

Jones, Paula; Bourne, Fay

Background readings and classroom materials dealing with Ghana for use with secondary and college students are provided in this publication. The major historical, social, geographical, and political aspects which have contributed to the present day development of Ghana are examined. The background readings for teachers which comprise section one…

An Analysis of Canadian Physical Education Curricula

ERIC Educational Resources Information Center

Kilborn, Michelle; Lorusso, Jenna; Francis, Nancy

2016-01-01

There has been much international concern about the present and future status of school physical education. Recent research has employed surveys or case studies to examine the status of physical education but there is a dearth of in-depth physical education curriculum document analysis. The aim of this study is to contribute to the international…

Assessment of Sources and Dietary Intake of Isoflavone in the U.S. Diet

USDA-ARS?s Scientific Manuscript database

Soy products are a major source of dietary isoflavones, with weak estrogenic, and other biological properties that may contribute to the reduction of the risk of some chronic diseases, such as certain cancers, i.e. prostate and melanoma. This presentation will examine sources of isoflavones in the d...

Seeking Professional Help: Etiology Beliefs about Mental Illness across Cultures

ERIC Educational Resources Information Center

Chen, Sylvia Xiaohua; Mak, Winnie W. S.

2008-01-01

In the present study, the authors examined the contributions of cultural beliefs about the etiology of mental illness to the seeking of help from mental health professionals among college students in 4 cultural groups, European Americans, Chinese Americans, Hong Kong Chinese, and Mainland Chinese. Group differences were found in help-seeking…

Materiality and Genre in the Study of Discourse Communities.

ERIC Educational Resources Information Center

Devitt, Amy J.; Bawarshi, Anis; Reiff, Mary Jo

2003-01-01

Presents three connected essays that use the idea of genre to study discourse communities. Examines several contexts of language exchange in which the use of genre theory may yield insight into teaching, research, and social interaction: legal practice, medical practice, and classrooms. Suggests how genre analysis contributes to the use of…

The Impact of Colour, Spatial Resolution, and Presentation Speed on Category Naming

ERIC Educational Resources Information Center

Laws, Keith R.; Hunter, Maria Z.

2006-01-01

Studies of neurological patients with category-specific agnosia have provided important contributions to our understanding of object recognition, although the meaning of such disorders is still hotly debated. One crucial line of research for our understanding of category effects, is through the examination of category biases in healthy normal…

Emphasizing Morals, Values, Ethics, and Character Education in Science Education and Science Teaching

ERIC Educational Resources Information Center

Chowdhury, Mohammad

2016-01-01

This article presents the rationale and arguments for the presence of morals, values, ethics and character education in science curriculum and science teaching. The author examines how rapid science and technological advancements and globalization are contributing to the complexities of social life and underpinning the importance of morals, values…

The Contributions of Teachers' Emotional Support to Children's Social Behaviors and Self-Regulatory Skills in First Grade

ERIC Educational Resources Information Center

Merritt, Eileen G.; Wanless, Shannon B.; Rimm-Kaufman, Sara E.; Cameron, Claire; Peugh, James L.

2012-01-01

The present observational study used hierarchical linear modeling to examine predictors of children's social and self-regulatory outcomes in first-grade classrooms. Specifically, goals were the following: (1) to explore relations between emotionally supportive teacher-child interactions and children's social behaviors (aggression with peers,…

Narcissistic Features in Young Adolescents: Relations to Aggression and Internalizing Symptoms.

ERIC Educational Resources Information Center

Washburn, Jason J.; McMahon, Susan D.; King, Cheryl A.; Reinecke, Mark A.; Silver, Carrie

2004-01-01

Recent research and theory suggest narcissistic features contribute to aggression in adults. The present study examined the association of narcissistic features with aggression and internalizing symptoms in 233 students of 5th-8th grade at three inner-city schools. A factor analysis of the Narcissistic Personality Inventory in this sample revealed…

Developing New Literacies Using Commercial Videogames as Educational Tools

ERIC Educational Resources Information Center

Lacasa, Pilar; Martinez, Rut; Mendez, Laura

2008-01-01

The general aim of this paper is to examine how videogames, supported by conversations and theatrical performances in the classroom, can contribute to the development of narrative thought as present in written compositions in various contexts. Given that one of the primary ecological influences on children is the mass media, we discuss how media…

Skills Needs of the SA Labour Market: 1998-2003.

ERIC Educational Resources Information Center

Hall, E. Comp.; Roodt, J., Comp.

This document, which contains information relevant to individuals planning their careers, employers, human resource planners, and training institutions, examines the skill needs of the South African labor market in 1998-2003. The preface presents a brief overview of the factors that have contributed to the high levels of unemployment and patterns…

Enhancing Resilience in Youth through a 10-Day Developmental Voyage

ERIC Educational Resources Information Center

Hayhurst, Jill; Hunter, John A.; Kafka, Sarah; Boyes, Mike

2015-01-01

The present study sought to examine the potential for resilience to be enhanced in a group of youth participating in a developmental voyage, and to identify the factors that contribute to increased resilience following the voyage. Two studies are reported. Study 1 revealed that voyage participants experienced increased resilience over the course…

Insider-Outsider Perspective: Revisiting the Conceptual Framework of Research Methodology in Language Teacher Education

ERIC Educational Resources Information Center

Nakata, Yoshiyuki

2015-01-01

The present paper discusses three types of research perspective on the insider-outsider continuum: outsider research, (insider's) outsider research, and insider research. It examines the essential features of the insider-outsider distinction with reference to categories such as researcher, students, classroom context, contribution, control of…

Developing Competent Youth and Strong Communities through After-School Programming.

ERIC Educational Resources Information Center

Danish, Steven J., Ed.; Gullotta, Thomas P., Ed.

Noting the renewed attention given to community efforts supporting after-school activities to promote social competence in its youth, this book examines the concepts of play and rites of passage for youth. The book also discusses the contributions of various types of activities on youth social competency, presents a variety of perspectives for…

Mothers' Marital Adaptation following the Birth of Twins or Singletons: Empirical Evidence and Practical Insights

ERIC Educational Resources Information Center

Taubman-Ben-Ari, Orit; Findler, Liora; Bendet, Chaya; Stanger, Varda; Ben-Shlomo, Shirley; Kuint, Jacob

2008-01-01

Parenting twins is typically portrayed as more stressful than is parenting single children and, therefore, more of a strain on the marital relationship. With this in mind, the present study examined the contribution of infant characteristics and mother's internal resources (attachment style) and external resources (maternal and paternal…

Sense of Cohesion among Community Activists Engaging in Volunteer Activity

ERIC Educational Resources Information Center

Levy, Drorit; Itzhaky, Haya; Zanbar, Lea; Schwartz, Chaya

2012-01-01

The present article attempts to shed light on the direct and indirect contribution of personal resources and community indices to Sense of Cohesion among activists engaging in community volunteer work. The sample comprised 481 activists. Based on social systems theory, three levels of variables were examined: (1) inputs, which included personal…

Exoplanet environments to harbour extremophile life

NASA Astrophysics Data System (ADS)

Janot-Pacheco, Eduardo; Lage, Claudia A. S.; Lima, Ivan G. P.

2010-02-01

In this contribution, we estimate the temperature at the surface of known exoplanets and of their putative satellites for two albedo extreme cases (Venus and Mars) and present a selection of extremophiles living on Earth that can live under those conditions. We examine also the possibility of survival of microorganisms in planetary systems of variable stars.

Red in Tooth and Claw? Images of Nature in Modern Picture Books.

ERIC Educational Resources Information Center

Marriott, Stuart

2002-01-01

Questions whether the mediated experience provided by picture books contributes toward or hinders a realistic and appropriate appreciation of the natural world. Argues that picture books present highly misleading images of animals and their habitats. Examines a few exceptional books that give an accurate and sensitive account of the animal kingdom…

Contributions of Associative Learning to Age and Individual Differences in Fluid Intelligence

ERIC Educational Resources Information Center

Tamez, Elaine; Myerson, Joel; Hale, Sandra

2012-01-01

According to the cognitive cascade hypothesis, age-related slowing results in decreased working memory, which in turn affects higher-order cognition. Because recent studies show complex associative learning correlates highly with fluid intelligence, the present study examined the role of complex associative learning in cognitive cascade models of…

Education, Income and Support for Suicide Bombings: Evidence from Six Muslim Countries

ERIC Educational Resources Information Center

Shafiq, M. Najeeb; Sinno, Abdulkader H.

2009-01-01

We examine the effect of educational attainment and income on support for suicide bombing among Muslim publics in six predominantly Muslim countries that have experienced suicide bombings: Indonesia, Jordan, Lebanon, Morocco, Pakistan, and Turkey. We make two contributions. First, we present a conceptual model, which has been lacking in the…

Education, Income, and Support for Suicide Bombings: Evidence from Six Muslim Countries

ERIC Educational Resources Information Center

Shafiq, M. Najeeb; Sinno, Abdulkader H.

2010-01-01

The authors examine the effect of educational attainment and income on support for suicide bombing among Muslim publics in six predominantly Muslim countries that have experienced suicide bombings: Indonesia, Jordan, Lebanon, Morocco, Pakistan, and Turkey. The authors make two contributions. First, they present a conceptual model, which has been…

Television Looks at Aging.

ERIC Educational Resources Information Center

Briller, Bert R., Ed.; Knight, Pamela, Ed.

How television is helping to make older adults more visible by drawing attention to their needs and by recognizing their contributions to society is examined in this book, which presents a sample of television programing in the 1980s. The book begins with an introduction by Mary Cassata that surveys the literature on television's roles as both…

Consultants, Consultancy and Consultocracy in Education Policymaking in England

ERIC Educational Resources Information Center

Gunter, Helen M.; Hall, David; Mills, Colin

2015-01-01

The role and contribution of consultants and consultancy in public services has grown rapidly and the power of consultants suggests the emergence of a "consultocracy". We draw on research evidence from the social sciences and critical education policy (CEP) studies to present an examination of the state of the field. We deploy a…

Africa Counts: Number and Pattern in African Culture.

ERIC Educational Resources Information Center

Zaslavsky, Claudia

This document describes the contributions of African peoples to the science of mathematics. The development of a number system is seen as related to need. Names of numbers, time reckoning, gesture counting, and counting materials are examined. Mystical beliefs about numbers and special meanings in pattern are presented. Reproductions of patterns,…

Socially Shared Metacognitive Regulation during Reciprocal Peer Tutoring: Identifying Its Relationship with Students' Content Processing and Transactive Discussions

ERIC Educational Resources Information Center

De Backer, Liesje; Van Keer, Hilde; Valcke, Martin

2015-01-01

Although successful collaborative learning requires socially shared metacognitive regulation (SSMR) of the learning process among multiple students, empirical research on SSMR is limited. The present study contributes to the emerging research on SSMR by examining its correlation with both collaborative learners' content processing strategies and…

Can Teachers Make a Difference? Home Environment and School Study Report 1974:1.

ERIC Educational Resources Information Center

Keeves, J. P.

This paper presents findings from an inquiry conducted in Australian secondary schools at the Form I level that examined the contributions of selected teaching behaviors to the achievement, attitudes, and attentiveness of students. The investigation was restricted to children in the schools of the Australian Capital Territory (ACT). This…

Freedom's Children: A Gender Perspective on the Education of the Learner-Citizen

ERIC Educational Resources Information Center

Arnot, Madeleine

2006-01-01

Drawing on Ulrich Beck's theory of "freedom's children," the present contribution examines contemporary concerns about educating young people "for" citizenship as well as educating them "about" citizenship. Under the first theme, the author focuses on the "citizen as learner," highlighting some of the gender- and class-related inequalities that…

The Importance of Motivation as a Predictor of School Achievement

ERIC Educational Resources Information Center

Steinmayr, Ricarda; Spinath, Birgit

2009-01-01

The present study examined to which extent different motivational concepts contribute to the prediction of school achievement among adolescent students independently from intelligence. A sample of 342 11th and 12th graders (age M = 16.94; SD = .71) was investigated. Students gave self-reports on domain-specific values, ability self-perceptions,…

Evidence for Two Attentional Components in Visual Working Memory

ERIC Educational Resources Information Center

Allen, Richard J.; Baddeley, Alan D.; Hitch, Graham J.

2014-01-01

How does executive attentional control contribute to memory for sequences of visual objects, and what does this reveal about storage and processing in working memory? Three experiments examined the impact of a concurrent executive load (backward counting) on memory for sequences of individually presented visual objects. Experiments 1 and 2 found…

Making a Difference: Women Headteachers' Contribution to Schools As Learning Institutions.

ERIC Educational Resources Information Center

Hall, Valerie

This paper presents findings of a study that examined how six women headteachers in Great Britain worked as school leaders. Data were obtained through observation, joint inquiry, structured conversations, and life-history interviews. The study drew on Wallace and Hall's (1994) power-culture metaphor, which stated that individuals make different…

Reflections of a Multicultural Counseling Course: A Qualitative Study with Counseling Students and Counselors

ERIC Educational Resources Information Center

Kagnici, Dilek Yelda

2014-01-01

The present study aimed to examine the contributions of a single multicultural counseling course designed with experiential learning strategies on multicultural awareness and knowledge competencies and the reflections of the training on the counselors' social and vocational life after graduation. For this purpose, two studies were conducted. In…

Behavioral Self-Regulation and Relations to Emergent Academic Skills among Children in Germany and Iceland

ERIC Educational Resources Information Center

von Suchodoletz, Antje; Gestsdottir, Steinunn; Wanless, Shannon B.; McClelland, Megan M.; Birgisdottir, Freyja; Gunzenhauser, Catherine; Ragnarsdottir, Hrafnhildur

2013-01-01

The present study investigated a direct assessment of behavioral self-regulation (the Head-Toes-Knees-Shoulders; HTKS) and its contribution to early academic achievement among young children in Germany and Iceland. The authors examined the psychometric properties and construct validity of the HTKS, investigated gender differences in young…

Adolescent Attributes Contributing to the Imposter Phenomenon

ERIC Educational Resources Information Center

Caselman, Tonia D.; Self, Patricia A.; Self, Angela L.

2006-01-01

Personality traits, self-perceptions, beliefs, and feelings that accompany the Imposter Phenomenon (IP) have been identified in adults but little research with adolescents has been reported. The present research describes data from a sample of 11th and 12th graders in order to examine predictors of IP among adolescents. The participants completed…

Special Report on Dental Care for Handicapped People.

ERIC Educational Resources Information Center

Rehabilitation Services Administration (DHEW), Washington, DC.

The document presents a Department of Health, Education and Welfare (HEW) special report on dental care for the handicapped. The nature and extent of the problem of providing dental services to the handicapped population is examined. The handicapped population is defined and their oral health status reviewed. Factors contributing to the poor oral…

Pre-Service Teachers, Computers, and ICT Courses: A Troubled Relationship

ERIC Educational Resources Information Center

Fokides, Emmanuel

2016-01-01

The study presents the results of a four-year long survey among pre-service teachers, examining factors which influence their knowledge and skills on computers, as well as factors which contribute to shaping their perceived computer competency. Participants were seven hundred fifty-four senior students, at the Department of Primary School…

Individual Differences in Visual Word Recognition: Insights from the English Lexicon Project

ERIC Educational Resources Information Center

Yap, Melvin J.; Balota, David A.; Sibley, Daragh E.; Ratcliff, Roger

2012-01-01

Empirical work and models of visual word recognition have traditionally focused on group-level performance. Despite the emphasis on the prototypical reader, there is clear evidence that variation in reading skill modulates word recognition performance. In the present study, we examined differences among individuals who contributed to the English…

Advantages of Bilinguals over Monolinguals in Learning a Third Language

ERIC Educational Resources Information Center

Abu-Rabia, Salim; Sanitsky, Ekaterina

2010-01-01

The present study is an examination of the contribution of bilingualism to trilingualism, namely the influence of learning two different orthographies on learning a third. The participants were two groups of sixth graders from Israeli schools who were studying English as a foreign (second or third) language: Russian Israeli children for whom…

Managing Conflict in School Teams: The Impact of Task and Goal Interdependence on Conflict Management and Team Effectiveness

ERIC Educational Resources Information Center

Somech, Anit

2008-01-01

Purpose: Although conflict has traditionally been considered destructive, recent studies have indicated that conflict management can contribute to effective teamwork. The present study explores conflict management as a team phenomenon in schools. The author examined how the contextual variables (task interdependence, goal interdependence) are…

Child protection workers dealing with child abuse: The contribution of personal, social and organizational resources to secondary traumatization.

PubMed

Dagan, Shlomit Weiss; Ben-Porat, Anat; Itzhaky, Haya

2016-01-01

The present study compared secondary traumatization among child protection social workers versus social workers employed at social service departments. In addition, based on Conservation of Resources (COR) theory, the study examined the contribution of working in the field of child protection as well as the contribution of background variables, personal resources (mastery), and resources in the workers' social and organizational environment (social support, effectiveness of supervision, and role stress) to secondary traumatization. The findings indicate that levels of mastery and years of work experience contributed negatively to secondary traumatization, whereas exposure to child maltreatment, trauma history, and role stress contributed positively to secondary traumatization. However, no significant contribution was found for social support and effectiveness of supervision. The study identifies factors that can prevent distress among professionals such as child protection workers, who are exposed to the trauma of child abuse victims. Recommendations are provided accordingly. Copyright © 2015 Elsevier Ltd. All rights reserved.

Follower Jealousy at Work: A Test of Vecchio's Model of Antecedents and Consequences of Jealousy.

PubMed

Thompson, Geir; Buch, Robert; Glasø, Lars

2018-01-02

The present study tests the validity of Robert P. Vecchio's seminal work on antecedents and consequences of jealousy. Specifically, we examine whether antecedents such as in-group status, supervisory considerateness, and supervisory differentiation of subordinates are associated with jealousy. In addition, we examine whether jealousy is associated with the outcome variable of social loafing. Leaders (n = 73) and their followers (n = 303) working in business organizations in Norway contributed data. Multilevel analyses showed that a high-quality working relationship with one's supervisor was inversely related to reports of jealousy. In addition, supervisors who displayed high levels of considerateness, for example, by providing followers with positive emotional support, were better able to reduce subordinate jealousy. This is a novel observation since previous research failed to demonstrate such a relationship. Finally, jealousy was positively associated with social loafing, suggesting that jealous followers engaged in an active counterproductive resistance response. The present study contributes to the extant literature by identifying unexamined antecedents of jealousy and a dysfunctional behavioral response to jealousy in the form of social loafing in the workplace.

The diagnostic accuracy of exercise electrocardiography - A review

NASA Technical Reports Server (NTRS)

Johnson, R. L.; Bungo, M. W.

1983-01-01

The cardiovascular 'stress test', and particularly the graded treadmill exercist test, has gained wide acceptance as a diagnostic aid in searching for ischemic heart disease and as a prognostic indicator for those with known coronary artery disease. Controversies still exist, however, in its use in mass screening and in interpreting equivocal tests. A review of the use and value of electrocardiographic exercise testing is presented. Topics such as its use in asymptomatic individuals, the adjuvant use of clinical examination, and the examination of ancillary treadmill parameters are presented. No attempt is made to detail the very significant contributions of radionuclide scanning. The positive exercise electrocardiogram in the asymptomatic subject is discussed and guidelines for clinical management are offered.

Valvulopathy consistent with endocarditis in an Argentine boa (Boa constrictor occidentalis).

PubMed

Wernick, Morena B; Novo-Matos, José; Ebling, Alessia; Kühn, Karolin; Ruetten, Maja; Hilbe, Monika; Howard, Judith; Chang, Rita; Prohaska, Sarah; Hatt, Jean-Michel

2015-03-01

An Argentine boa (Boa constrictor occidentalis) of 5 yr 7 mo of age was presented for respiratory problems and regurgitation. Radiographs revealed evidence of cardiomegaly and pneumonia. Blood smear examination revealed the presence of intracytoplasmic inclusion bodies in peripheral lymphocytes, consistent with inclusion body disease. Cultures of a tracheal wash sample resulted in growth of Ochrobactrum intermedium and Pseudomonas putida. Echocardiographic examination revealed a large vegetative lesion on the right atrioventricular valve with valvular insufficiency, a mildly dilated right atrium, and pulmonary hypertension. Postmortem examination confirmed the presence of pneumonia and bacterial endocarditis with dystrophic mineralization of the right atrioventricular valve, associated with different bacteria than those cultured from the tracheal wash. The present case is the first report of endocarditis in a boa constrictor and contributes to the rare reports of cardiac disease in snakes.

Longitudinal trajectories of subjective care stressors: the role of personal, dyadic, and family resources.

PubMed

Bangerter, Lauren R; Liu, Yin; Zarit, Steven H

2017-11-24

Stressors are critical to the caregiver stress process, yet little work has examined resources that contribute to longitudinal changes in subjective stressors. The present study examines a variety of factors that contribute to changes in subjective stressors across time. Dementia caregivers (N = 153) completed an in-person interview and eight daily telephone interviews at baseline, and follow up interviews at 6 and 12 months. Growth curve analyses examine how care- and non-care stressors, respite, dyadic relationship quality, family support/conflict and care transitions (e.g. nursing home placement) are associated with changes in role overload and role captivity across 12 months. Caregivers who transitioned out of their role had higher overload and captivity at baseline. Among caregivers who transitioned out of caregiving, higher captivity at baseline was associated with declines in captivity and overload; more non-care stressors at baseline was linked to increased captivity and greater overload across time. Adult day service use and family support were associated with lesser captivity over time; taking more breaks from caregiving was linked to lower overload. Higher dyadic relationship quality was associated with lower captivity and overload. Findings contribute to caregiver intervention efforts by highlighting important resources associated with subjective stressors across time.

An assessment study of CVD related risk factors in a tribal population of India.

PubMed

Kandpal, Vani; Sachdeva, M P; Saraswathy, K N

2016-05-25

Non communicable diseases (NCDs) have become a major concern for global health. Cardiovascular diseases (CVDs) contribute 48 % towards the deaths due to NCDs in India. Though studies have been conducted in urban and rural areas, data related to tribal communities is limited. The present study aims to examine various CVD related risk factors including hypertension, elevated fasting blood glucose, obesity and metabolic syndrome among a tribal population. The present study was an observational, cross- sectional study conducted on Rang Bhotias, a tribal population of India. The participants were adults of age between 20 and 60 years. Prior to blood sample collection, interview schedule was administered which included relevant information like age, lifestyle, socio-economic status, education and occupation In addition to this, various anthropometric and physiological measurements were taken. Logistic regression was used to examine the association of the various health disorders related to CVDs with age, gender and behavioural factors (smoking, alcohol consumption and physical activity). A total of 288 participants were surveyed for the study including 104 males and 184 females. High BMI (56.6 %), hypertension (43.4 %), metabolic syndrome (39.2 %) and abdominal obesity (33.7 %) were the most prevalent CVD risk factors observed in the population. The multivariate logistic regression analysis, conducted to examine the contribution of risk factors including behavioural risk factors on the studied abnormalities, revealed age to be a significant risk factor for all the abnormalities except elevated fasting blood glucose. Gender and physical inactivity contributed significantly towards development of hypertension. Physical inactivity was also found to be associated with high BMI levels. In the present study, hypertension, high BMI levels, MS and abdominal obesity have been found to be high among the studied population. The status of the population with respect to these abnormalities implicates susceptibility of the community towards various common disorders. The prevention and treatment intervention programs should be implemented taking into consideration age and gender.

Yesterday's dinner, tomorrow's weather, today's news? US newspaper coverage of food system contributions to climate change.

PubMed

Neff, Roni A; Chan, Iris L; Smith, Katherine Clegg

2009-07-01

There is strong evidence that what we eat and how it is produced affects climate change. The present paper examines coverage of food system contributions to climate change in top US newspapers. Using a sample of sixteen leading US newspapers from September 2005 to January 2008, two coders identified 'food and climate change' and 'climate change' articles based on specified criteria. Analyses examined variation across time and newspaper, the level of content relevant to food systems' contributions to climate change, and how such content was framed. There were 4582 'climate change' articles in these newspapers during this period. Of these, 2.4% mentioned food or agriculture contributions, with 0.4% coded as substantially focused on the issue and 0.5% mentioning food animal contributions. The level of content on food contributions to climate change increased across time. Articles initially addressed the issue primarily in individual terms, expanding to address business and government responsibility more in later articles. US newspaper coverage of food systems' effects on climate change during the study period increased, but still did not reflect the increasingly solid evidence of the importance of these effects. Increased coverage may lead to responses by individuals, industry and government. Based on co-benefits with nutritional public health messages and climate change's food security threats, the public health nutrition community has an important role to play in elaborating and disseminating information about food and climate change for the US media.

Whole Grains Contribute Only a Small Proportion of Dietary Fiber to the U.S. Diet

PubMed Central

Kranz, Sibylle; Dodd, Kevin W.; Juan, Wen Yen; Johnson, LuAnn K.; Jahns, Lisa

2017-01-01

Dietary fiber (DF), found in whole fruits, vegetables, and whole grains (WG), is considered a nutrient of concern in the US diet and increased consumption is recommended. The present study was designed to highlight this critical importance of the difference between WG, high-fiber WG, and sources of fiber that are not from WG. The study is based on the two-day diets reported consumed by the nationally representative sample of Americans participating in What We Eat In America, the dietary component of the National Health and Nutrition Examination Survey from 2003–2010. Foods consumed were classified into tertiles of DF and WG and the contribution of fiber by differing levels of WG content were examined. Foods containing high amounts of WG and DF only contributed about 7% of total fiber intake. Overall, grain-based foods contributed 54.5% of all DF consumed. Approximately 39% of DF came from grain foods that contained no WG, rather these foods contained refined grains, which contain only small amounts of DF but are consumed in large quantities. All WG-containing foods combined contributed a total of 15.3% of DF in the American diet. Thus, public health messaging needs to be changed to specifically encourage consumption of WG foods with high levels of DF to address both recommendations. PMID:28218657

Research And Development Contributions to Aviation Progress (RADCAP): Executive summary

NASA Technical Reports Server (NTRS)

1972-01-01

Positive contributions of military aeronautical research and development programs to civil aviation are reviewed and some possible future contributions of those military programs are assessed. A summary is presented of detailed results concerned with: (1) review of the progress that has been made in aviation since 1925 and the significant technological advances that have been made; (2) an examination of current and planned military aeronautical research and technology programs and an assessment of their relevancy to the aeronautical R and D needs of civil aviation; (3) the relationship of the development base generated by military programs to the needs of civil airliner design, development, and production; (4) information on aeronautical R and D funding; and (5) the findings and observations of the RADCAP study.

[Silva Coutinho: his career and his contributions to the geological collections of the Museu Nacional in Rio de Janeiro].

PubMed

Silva, Marina Jardim E; Fernandes, Antonio Carlos Sequeira; Fonseca, Vera Maria Medina da

2013-06-01

The career of João Martins da Silva Coutinho is linked to the history of the Museu Nacional in Rio de Janeiro to whose collections (especially geological) he contributed scientific information and material. On the Brazilian scientific stage, Silva Coutinho took part in major exploratory commissions in the latter half of the nineteenth century, mainly in the Amazon and in the Northeast. He collected and sent samples to the Museu Nacional for analysis, establishing deep ties with the institution and its staff. The article presents his contributions through an analysis of these documents and an examination of the geological collections that he sent to the institution and that remain part of its holdings.

Analysis of poetic literature using B. F. Skinner's theoretical framework from verbal behavior

PubMed Central

Luke, Nicole M.

2003-01-01

This paper examines Skinner's work on verbal behavior in the context of literature as a particular class of written verbal behavior. It looks at contemporary literary theory and analysis and the contributions that Skinner's theoretical framework can make. Two diverse examples of poetic literature are chosen and analyzed following Skinner's framework, examining the dynamic interplay between the writer and reader that take place within the bounds of the work presented. It is concluded that Skinner's hypotheses about verbal behavior and the functional approach to understanding it have much to offer literary theorists in their efforts to understand literary works and should be more carefully examined.

Complexity, Training Paradigm Design, and the Contribution of Memory Subsystems to Grammar Learning

PubMed Central

Ettlinger, Marc; Wong, Patrick C. M.

2016-01-01

Although there is variability in nonnative grammar learning outcomes, the contributions of training paradigm design and memory subsystems are not well understood. To examine this, we presented learners with an artificial grammar that formed words via simple and complex morphophonological rules. Across three experiments, we manipulated training paradigm design and measured subjects' declarative, procedural, and working memory subsystems. Experiment 1 demonstrated that passive, exposure-based training boosted learning of both simple and complex grammatical rules, relative to no training. Additionally, procedural memory correlated with simple rule learning, whereas declarative memory correlated with complex rule learning. Experiment 2 showed that presenting corrective feedback during the test phase did not improve learning. Experiment 3 revealed that structuring the order of training so that subjects are first exposed to the simple rule and then the complex improved learning. The cumulative findings shed light on the contributions of grammatical complexity, training paradigm design, and domain-general memory subsystems in determining grammar learning success. PMID:27391085

Cross-language Transfer of Metalinguistic Skills: Evidence from Spelling English Words by Korean Students in Grades 4, 5 and 6.

PubMed

Yeon, Sookkyung; Bae, Han Suk; Joshi, R Malatesha

2017-11-01

The present study examined unique and shared contributions of Korean (first language) phonological, orthographic and morphological awareness (PA, OA and MA, respectively) to English (second/foreign language) spelling among 287 fourth-grade, fifth-grade and sixth-grade Korean children. Korean measures of PA, OA and MA were administered, in addition to English vocabulary and spelling measures. Results from structural equation modelling showed that PA, OA and MA were caused by one common construct, metalinguistic awareness (META), and the contribution of Korean META to English spelling was statistically significant, controlling for English vocabulary. In particular, Korean MA and PA played unique roles in explaining English spelling; whereas Korean OA did not significantly contribute to English spelling. Findings from the present study provided empirical evidence of first language META transfer effect on second/foreign language spelling development. Educational implications and future research ideas are discussed. Copyright © 2017 John Wiley & Sons, Ltd. Copyright © 2017 John Wiley & Sons, Ltd.

"It's in the Cards": The Contribution of Illustrated Metaphor Cards to Exploring Values Within Narratives.

PubMed

Karnieli-Miller, Orit; Nissim, Geffen; Goldberg, Miriam

2017-01-01

In this article, we present the use of illustrated metaphorical cards as a technique to enrich the qualitative narrative interview. We examine the advantages of incorporating a projective tool to assist in constructing and understanding personal narratives of people living with severe mental illness. We interviewed 25 participants-staff and members of a clubhouse in Israel (an international community model of rehabilitation in mental health)-and sought to understand their stories focused on personal and organizational values. The findings revealed that, in most cases, the cards contributed to data collection by enhancing the interviewees' ability for expression and by facilitating richer, more comprehensive stories and descriptions. This in turn enhanced the researcher's ability to understand the messages and stories presented. The research conclusions discuss the cards' potential contribution to improving data collection and analysis. The cards became an additional channel for expressing participants' experiences, emotions, and unique voice. © The Author(s) 2015.

Characteristics of signals originating near the lithium-diffused N+ contact of high purity germanium p-type point contact detectors

DOE PAGES

Aguayo, E.; Amman, M.; Avignone, F. T.; ...

2012-11-09

A study of signals originating near the lithium-diffused n+ contact of p-type point contact (PPC) high purity germanium detectors (HPGe) is presented. The transition region between the active germanium and the fully dead layer of the n+ contact is examined. Energy depositions in this transition region are shown to result in partial charge collection. This provides a mechanism for events with a well defined energy to contribute to the continuum of the energy spectrum at lower energies. A novel technique to quantify the contribution from this source of background is introduced. Furthermore, experiments that operate germanium detectors with a verymore » low energy threshold may benefit from the methods presented herein.« less

Rare diseases, rare presentations: recognizing atypical inherited kidney disease phenotypes in the age of genomics.

PubMed

Ars, Elisabet; Torra, Roser

2017-10-01

A significant percentage of adults (10%) and children (20%) on renal replacement therapy have an inherited kidney disease (IKD). The new genomic era, ushered in by the next generation sequencing techniques, has contributed to the identification of new genes and facilitated the genetic diagnosis of the highly heterogeneous IKDs. Consequently, it has also allowed the reclassification of diseases and has broadened the phenotypic spectrum of many classical IKDs. Various genetic, epigenetic and environmental factors may explain 'atypical' phenotypes. In this article, we examine different mechanisms that may contribute to phenotypic variability and also provide case examples that illustrate them. The aim of the article is to raise awareness, among nephrologists and geneticists, of rare presentations that IKDs may show, to facilitate diagnosis.

Predictive and postdictive mechanisms jointly contribute to visual awareness.

PubMed

Soga, Ryosuke; Akaishi, Rei; Sakai, Katsuyuki

2009-09-01

One of the fundamental issues in visual awareness is how we are able to perceive the scene in front of our eyes on time despite the delay in processing visual information. The prediction theory postulates that our visual system predicts the future to compensate for such delays. On the other hand, the postdiction theory postulates that our visual awareness is inevitably a delayed product. In the present study we used flash-lag paradigms in motion and color domains and examined how the perception of visual information at the time of flash is influenced by prior and subsequent visual events. We found that both types of event additively influence the perception of the present visual image, suggesting that our visual awareness results from joint contribution of predictive and postdictive mechanisms.

Spreading Ebola Panic: Newspaper and Social Media Coverage of the 2014 Ebola Health Crisis.

PubMed

Kilgo, Danielle K; Yoo, Joseph; Johnson, Thomas J

2018-02-23

During times of hot crises, traditional news organizations have historically contributed to public fear and panic by emphasizing risks and uncertainties. The degree to which digital and social media platforms contribute to this panic is essential to consider in the new media landscape. This research examines news coverage of the 2014 Ebola crisis, exploring differences in presentation between newspaper coverage and news shared on the social news platform Reddit. Results suggest that news shared on Reddit amplified panic and uncertainty surrounding Ebola, while traditional newspaper coverage was significantly less likely to produce panic-inducing coverage.

[Methodologic developmental principles of standardized surveys within the scope of social gerontologic studies].

PubMed

Bansemir, G

1987-01-01

The conception and evaluation of standardized oral or written questioning as quantifying instruments of research orientate by the basic premises of Marxist-Leninist theory of recognition and general scientific logic. In the present contribution the socio-gerontological research process is outlined in extracts. By referring to the intrinsic connection between some of its essential components--problem, formation of hypotheses, obtaining indicators/measurement, preliminary examination, evaluation-as well as to typical errors and (fictitious) examples of practical research, this contribution contrasts the natural, apparently uncomplicated course of structured questioning with its qualitative methodological fundamentals and demands.

Melodic contour identification and sentence recognition using sung speech

PubMed Central

Crew, Joseph D.; Galvin, John J.; Fu, Qian-Jie

2015-01-01

For bimodal cochlear implant users, acoustic and electric hearing has been shown to contribute differently to speech and music perception. However, differences in test paradigms and stimuli in speech and music testing can make it difficult to assess the relative contributions of each device. To address these concerns, the Sung Speech Corpus (SSC) was created. The SSC contains 50 monosyllable words sung over an octave range and can be used to test both speech and music perception using the same stimuli. Here SSC data are presented with normal hearing listeners and any advantage of musicianship is examined. PMID:26428838

Societal and Familial Supports in the Development of Feminists.

ERIC Educational Resources Information Center

Acker, Joan; Howard, Mary

The research presented in this study examines who feminists are and what kinds of life experiences may have contributed to the process of becoming a feminist. A discussion of the barriers to the emergence of a women's movement and a reconsideration of some current explanations of the emergence of a movement at this particular historical moment…

Observed Sensitivity during Family Interactions and Cumulative Risk: A Study of Multiple Dyads per Family

ERIC Educational Resources Information Center

Browne, Dillon T.; Leckie, George; Prime, Heather; Perlman, Michal; Jenkins, Jennifer M.

2016-01-01

The present study sought to investigate the family, individual, and dyad-specific contributions to observed cognitive sensitivity during family interactions. Moreover, the influence of cumulative risk on sensitivity at the aforementioned levels of the family was examined. Mothers and 2 children per family were observed interacting in a round robin…

Integrating Teacher- and Peer-Assessments of Group Coursework Assignments in Business Education: Some Innovative Methods

ERIC Educational Resources Information Center

Onyia, Okey Peter

2014-01-01

This paper is a sequel to an earlier one that examines "the efficacy of two innovative peer-assessment templates ("PET" and "PACT") introduced to enable students provide evidence of their fairness in evaluating peer contributions to group project work" (Onyia, O. P. and Allen, S., 2012). In the present paper, three…

Children and Guns: A Children's Defense Fund Report on Children Dying from Gunfire in America.

ERIC Educational Resources Information Center

Ward, Jill M.

Asserting that escalating violence against and by children and adolescents is the manifestation of a range of serious and long neglected problems, this report examines the contribution of deadly firearms to the prevalence of violence in American communities, presents statistics on national trends, and describes state actions. Following an…

The Ecology of Young Children's Behaviour and Social Competence: Child Characteristics, Socio-Economic Factors and Parenting

ERIC Educational Resources Information Center

Hartas, Dimitra

2011-01-01

Using a longitudinal, UK representative sample from the Millennium Cohort Study, the present study examined the effects of socio-economic factors on mother- and teacher-rated behaviour, and the unique and cumulative contribution of both risk and protective factors inherent in children's proximal and distal influences to behaviour during the…

Using Singular Value Decomposition to Investigate Degraded Chinese Character Recognition: Evidence from Eye Movements during Reading

ERIC Educational Resources Information Center

Wang, Hsueh-Cheng; Schotter, Elizabeth R.; Angele, Bernhard; Yang, Jinmian; Simovici, Dan; Pomplun, Marc; Rayner, Keith

2013-01-01

Previous research indicates that removing initial strokes from Chinese characters makes them harder to read than removing final or internal ones. In the present study, we examined the contribution of important components to character configuration via singular value decomposition. The results indicated that when the least important segments, which…

From Ally McBeal to Sabado Gigante: Contributions of Television Viewing to the Gender Role Attitudes of Latino Adolescents

ERIC Educational Resources Information Center

Rivadeneyra, Rocio; Ward, L. Monique

2005-01-01

Although previous findings indicate that frequent television viewing is associated with holding more stereotypical attitudes about gender, no studies have examined this connection among Latino youth, who are frequent viewers of both English- and Spanish-language programming. The present study attempted to rectify this situation by examining…

The Market for Optical Disk Products: A Review of Published Forecasts, 1980-1990.

ERIC Educational Resources Information Center

Saffady, William

1991-01-01

Examines the expectations and reality of optical disk market forecasts published between 1980 and 1990. A historical survey and review of these studies is presented, with general forecasts of all optical disk types included. It is concluded that unrealistic predictions may have contributed to a sluggish market for optical disks. (70 notes)…

Alabama’s forests, 2010

Treesearch

Andrew J. Hartsell; Jason A. Cooper

2013-01-01

The principle findings of the ninth forest survey of Alabama (2010) and changes that have occurred since the previous surveys are presented. Topics examined include forest area, ownership, forest-type groups, stand structure, basal area, timber volume, growth removals, and mortality. Alabama’s contribution to the Nation’s forest resources and regional comparisons are...

Social Beliefs as Determinants of Attitudes toward Seeking Professional Psychological Help among Ethnically Diverse University Students

ERIC Educational Resources Information Center

Kuo, Ben C. H.; Kwantes, Catherine T.; Towson, Shelagh; Nanson, Kathleen M.

2006-01-01

The present study examined the role of pancultural social beliefs, as measured by the Social Axioms Survey (SAS), in predicting attitudes toward seeking professional psychological help in an ethnically diverse sample of Canadian university students (N = 400). The result of a hierarchical regression showed that the collective contribution of the…

Implementation of National Guidelines for Healthy School Meals: The Relationship between Process and Outcome

ERIC Educational Resources Information Center

Holthe, Asle; Larsen, Torill; Samdal, Oddrun

2011-01-01

The implementation of policy interventions at the school level is often considered an organizational change process. The main goal of the present study was to examine the degree of implementation of Norwegian national guidelines for healthy school meals and how organizational capacity at the school level contributed to the degree of…

Trust, Growth Mindset, and Student Commitment to Active Learning in a College Science Course

ERIC Educational Resources Information Center

Cavanagh, Andrew J.; Chen, Xinnian; Bathgate, Meghan; Frederick, Jennifer; Hanauer, David I.; Graham, Mark J.

2018-01-01

There is growing consensus regarding the effectiveness of active-learning pedagogies in college science courses. Less is known about ways that student-level factors contribute to positive outcomes in these contexts. The present study examines students' (N = 245) trust in the instructor--defined as perceptions of their instructor's understanding,…

Lexical and Nonlexical Processes in the Skilled Reading and Spelling of Persian

ERIC Educational Resources Information Center

Rahbari, Noriyeh; Senechal, Monique

2009-01-01

The objective of the present study was to examine the contribution of lexical and nonlexical processes to skilled reading and spelling in Persian. Persian is a mixed orthography that allows one to study within one language characteristics typically found in shallow orthographies as well as those found in deeper orthographies. 61 senior high-school…

Group Peer Assessment for Summative Evaluation in a Graduate-Level Statistics Course for Ecologists

ERIC Educational Resources Information Center

ArchMiller, Althea; Fieberg, John; Walker, J.D.; Holm, Noah

2017-01-01

Peer assessment is often used for formative learning, but few studies have examined the validity of group-based peer assessment for the summative evaluation of course assignments. The present study contributes to the literature by using online technology (the course management system Moodle™) to implement structured, summative peer review based on…

Youth Political Engagement in Australia and the United States: Student Councils and Volunteer Organizations as Communities of Practice

ERIC Educational Resources Information Center

Homana, Gary A.

2018-01-01

Purpose: Lave and Wenger's Communities of Practice is presented as a conceptual framework for examining extracurricular activities as a part of democratic schools' contribution to students' civic engagement. Data from the IEA Civic Education Study is analyzed to investigate research questions on the association between participation in two civic…

Behavioral Self-Regulation and Executive Function Both Predict Visuomotor Skills and Early Academic Achievement

ERIC Educational Resources Information Center

Becker, Derek R.; Miao, Alicia; Duncan, Robert; McClelland, Megan M.

2014-01-01

The present study explored direct and interactive effects between behavioral self-regulation (SR) and two measures of executive function (EF, inhibitory control and working memory), with a fine motor measure tapping visuomotor skills (VMS) in a sample of 127 prekindergarten and kindergarten children. It also examined the relative contribution of…

College Athletics in the Twenties: The Golden Age or Fool's Gold?

ERIC Educational Resources Information Center

Freeman, William H.

A study of the problems ensuing from the growth of intercollegiate athletics during the 1920's into monumental fund-raising events reveals striking social parallels between that time and the present day. This paper examines the social and economic conditions that contributed to the "sports boom" of the Twenties and comments on the similarities…

The Importance of Information Localization in Scene Gist Recognition

ERIC Educational Resources Information Center

Loschky, Lester C.; Sethi, Amit; Simons, Daniel J.; Pydimarri, Tejaswi N.; Ochs, Daniel; Corbeille, Jeremy L.

2007-01-01

People can recognize the meaning or gist of a scene from a single glance, and a few recent studies have begun to examine the sorts of information that contribute to scene gist recognition. The authors of the present study used visual masking coupled with image manipulations (randomizing phase while maintaining the Fourier amplitude spectrum;…

Paul F-Brandwein Lecture 2006: Conservation Education for the 21st Century and beyond

ERIC Educational Resources Information Center

Roth, Charles E.

2008-01-01

This paper explores Paul Brandwein's contribution to the concept of conservation education in America. It examines the evolution of the concept to today's environmental education. It then identifies some of the weaknesses of current environmental education and presents ideas on how to move past them to a point where conservation education is…

Trajectories of Maternal Harsh Parenting in the First 3 Years of Life

ERIC Educational Resources Information Center

Kim, Hyoun K.; Pears, Katherine C.; Fisher, Philip A.; Connelly, Cynthia D.; Landsverk, John A.

2010-01-01

Objective: Despite the high prevalence rates of harsh parenting, the nature of developmental change in this domain early in life and the factors that contribute to changes in harsh parenting over time are not well understood. The present study examined developmental patterns in maternal harsh parenting behavior from birth to age 3 years and their…

"Mommy That's the Exit.": Empowering Homeless Mothers to Support Their Children's Daily Literacy Experiences

ERIC Educational Resources Information Center

Di Santo, Aurelia; Timmons, Kristy; Pelletier, Janette

2016-01-01

The present study examined how a six-week family literacy programme contributed to supporting the efforts 12 mothers living in a residential shelter were making to foster their preschool children's literacy development. We compared pre- and post-programme interviews to explore whether the mothers applied the literacy strategies discussed in the…

Inequality and the Home Learning Environment: Predictions about Seven-Year-Olds' Language and Literacy

ERIC Educational Resources Information Center

Hartas, Dimitra

2012-01-01

Using a UK representative sample from the Millennium Cohort Study, the present study examined the unique and cumulative contribution of children's characteristics and attitudes to school, home learning environment and family's socio-economic background to children's language and literacy at the end of Key Stage 1 (age seven-years-old).…

Double Jeopardy: Child and School Characteristics that Predict Aggressive-Disruptive Behavior in First Grade

ERIC Educational Resources Information Center

Thomas, Duane E.; Bierman, Karen L.; Thompson, Celine; Powers, C. J.

2008-01-01

High rates of aggressive-disruptive behavior exhibited by children during their initial years of elementary school increase their risk for significant behavioral adjustment problems with teachers and peers. The purpose of the present study was to examine the unique and combined contributions of child vulnerabilities and school context to the…

Investigating Apology Response Strategies in Australian English and Bahasa Indonesia: Gender and Cultural Perspectives

ERIC Educational Resources Information Center

Adrefiza; Jones, Jeremy F.

2013-01-01

Studies on apologies have proliferated in pragmatics research, but little research has been conducted on apology responses (ARs). The present inquiry contributes to filling the gap in the literature, and it does so by examining such responses in two languages, Australian English (AE) and Bahasa Indonesia (BI). The study ultimately focuses on two…

The Contributions of Vocabulary and Letter Writing Automaticity to Word Reading and Spelling for Kindergartners

ERIC Educational Resources Information Center

Kim, Young-Suk; Al Otaiba, Stephanie; Puranik, Cynthia; Folsom, Jessica Sidler; Gruelich, Luana

2014-01-01

In the present study we examined the relation between alphabet knowledge fluency (letter names and sounds) and letter writing automaticity, and unique relations of letter writing automaticity and semantic knowledge (i.e., vocabulary) to word reading and spelling over and above code-related skills such as phonological awareness and alphabet…

Sibling Relationships: Parent-Child Agreement and Contributions of Siblings with and without ASD

ERIC Educational Resources Information Center

Braconnier, Megan L.; Coffman, Marika C.; Kelso, Nicole; Wolf, Julie M.

2018-01-01

Research on the experiences of siblings of individuals with ASD and the quality of their sibling relationships has yielded mixed results. The present study examined the significance of parent- versus child-report of both positive and negative behaviors exhibited by siblings and their brothers and sisters with ASD within sibling dyads. Findings…

Lessons of History: Organizational Factors in Three Aviation Mishaps

NASA Technical Reports Server (NTRS)

Merlin, Peter William

2013-01-01

This presentation examines organizational factors that contributed to three aircraft mishaps and provides analysis of lessons learned. Three historical aviation mishaps were studied from a human factors perspective, and organizational factors identified and analyzed. These case studies provide valuable lessons for understanding the interaction of people with aircraft systems and with each other during flight operations.

What It Takes to Succeed: The Importance of Social Support for Academically Successful Middle School English Learners

ERIC Educational Resources Information Center

Baker, Lottie L.

2017-01-01

Missing from educational studies on English learners (ELs) is an investigation of those students who succeed beyond minimum standards, defying the achievement gap. The research study presented in this article contributes to this area by examining the experiences and understandings of five middle school ELs who have demonstrated linguistic and…

Computer Simulations of Developmental Change: The Contributions of Working Memory Capacity and Long-Term Knowledge

ERIC Educational Resources Information Center

Jones, Gary; Gobet, Fernand; Pine, Julian M.

2008-01-01

Increasing working memory (WM) capacity is often cited as a major influence on children's development and yet WM capacity is difficult to examine independently of long-term knowledge. A computational model of children's nonword repetition (NWR) performance is presented that independently manipulates long-term knowledge and WM capacity to determine…

Balancing the Yin and Yang: The Role of Universities in Developing Softer Skills in Accountancy

ERIC Educational Resources Information Center

Evans, Carl; Gbadamosi, Gbolahan; Wells, Jamie; Scott, Ian

2012-01-01

This paper presents an examination of the importance of softer skills in the accountancy profession and a discussion of the contribution that universities can make in supporting the development of these skills. With employers increasingly demanding a greater range of softer skills such as effective communication, the paper is intended to challenge…

Elderly adults and skin disorders: common problems for nondermatologists.

PubMed

Na, Chang R; Wang, Steven; Kirsner, Robert S; Federman, Daniel G

2012-11-01

Diseases of elderly adults are becoming increasingly important as life expectancy gradually rises worldwide. To promote healthy aging, it is important to understand the skin changes associated with aging. This review focuses on the special considerations for some of the more common dermatological disorders in elderly adults and examines presentation, contributing factors, and association with systemic diseases.

The Association between Cyber Victimization and Subsequent Cyber Aggression: The Moderating Effect of Peer Rejection

ERIC Educational Resources Information Center

Wright, Michelle F.; Li, Yan

2013-01-01

Adolescents experience various forms of strain in their lives that may contribute jointly to their engagement in cyber aggression. However, little attention has been given to this idea. To address this gap in the literature, the present longitudinal study examined the moderating influence of peer rejection on the relationship between cyber…

The Effect of Morphological Awareness on Reading Comprehension: A Study with Adolescent Spanish-English Emergent Bilinguals

ERIC Educational Resources Information Center

Curinga, Rebecca

2014-01-01

The present research examines the role of morphological awareness in reading comprehension of high school emergent bilinguals. As an increasing number of research studies contribute to our understanding of morphological awareness, i.e. the ability to reflect on and manipulate morphologically complex derived words, we are better able to appreciate…

Mathematics Textbooks and Their Potential Role in Supporting Misconceptions

ERIC Educational Resources Information Center

Kajander, Ann; Lovric, Miroslav

2009-01-01

As a fundamental resource, textbooks shape the way we teach and learn mathematics. Based on examination of secondary school and university textbooks, we describe to what extent, and how, the presentation of mathematics material--in our case study, the concept of the line tangent to the graph of a function--could contribute to creation and…

Temperament in the Classroom: Children Low in Surgency are More Sensitive to Teachers' Reactions to Emotions

ERIC Educational Resources Information Center

Bassett, Hideko Hamada; Denham, Susanne A.; Fettig, Nicole B.; Curby, Timothy W.; Mohtasham, Mandana; Austin, Nila

2017-01-01

Based on the emotion socialization and bioecological models, the present study examined the contributions of teacher emotion socialization (i.e., teacher reactions to child emotions) on children's social-emotional behaviors, and the moderating effect of child temperamental surgency on these relations in the preschool context. A total of 337…

Research on Women's Acquisition of Professional and Leadership Roles. Research Bulletin 75-39.

ERIC Educational Resources Information Center

Lockheed, Marlaine E., Ed.

The proceedings of a symposium sponsored by the American Educational Research Association (AERA) Special Interest Group on Research on Women are compiled. The symposium focused on examining the factors which contribute to low incidence of women in both professional and leadership roles. Six papers present research gathered from cross-cultural,…

Peer Victimisation and Its Relation to Class Relational Climate and Class Moral Disengagement among School Children

ERIC Educational Resources Information Center

Thornberg, Robert; Wänström, Linda; Pozzoli, Tiziana

2017-01-01

The aim of the present study was to examine whether class climate and class moral disengagement each contribute to explain different levels of victimisation among classes. Eight-hundred-and-ninety-nine children from 43 Swedish elementary school classes participated in the current study. Class moral disengagement, class relational climate and peer…

[To improve the quality of requisitions for radiologic examinations].

PubMed

Roussel, P; Lelièvre, N

2002-05-01

This article presents the different steps implemented in order to improve the quality of requisitions for radiologic examinations in a hospital. and methods. The radiology requests sent from clinical units are periodically analyzed using criteria about tracking, prescription and security required for a good examination. Results are discussed with the clinical units in order to achieve improvements. The periodical analysis of nonconformities shows a gradual improvement of practices. This action contributes to the realization of a single document for every request of examination or analysis in the hospital. The described action is in the context of French regulations, first about the practice of radiology, second about the obligation of quality improvement that health care facilities now have to implement for their accreditation.

The health maintenance organization strategy: a corporate takeover of health services delivery.

PubMed

Salmon, J W

1975-01-01

This paper presents a political economic framework for viewing the social organization of the delivery of health care servies and predicting a qualitatively different institutional configuration involving the health maintenance organization. The principal forces impacting American capitalism today are leading to a fundamental restructuring for increased social efficiency of the entire social welfare sector, including the health services industry. The method to achieve this restructuring involves health policy directed at raising the contribution to the social surplus from the delivery of health care services and eventual corporate domination. The health maintenance organization conceptualization is examined with suggestions as to how the HMO strategy promoted by the state leads to this corporate takeover. The mechanism and extent of the present corporate involvement are examined and implications of health services as a social control mechanism are presented.

Incentives to Encourage Scientific Web Contribution (Invited)

NASA Astrophysics Data System (ADS)

Antunes, A. K.

2010-12-01

We suggest improvements to citation standards and creation of remuneration opportunities to encourage career scientist contributions to Web2.0 and social media science channels. At present, agencies want to accomplish better outreach and engagement with no funding, while scientists sacrifice their personal time to contribute to web and social media sites. Securing active participation by scientists requires career recognition of the value scientists provide to web knowledge bases and to the general public. One primary mechanism to encourage participation is citation standards, which let a contributor improve their reputation in a quantifiable way. But such standards must be recognized by their scientific and workplace communities. Using case studies such as the acceptance of web in the workplace and the growth of open access journals, we examine what agencies and individual can do as well as the time scales needed to secure increased active contribution by scientists. We also discuss ways to jumpstart this process.

Under-estimated wave contribution to coastal sea-level rise

NASA Astrophysics Data System (ADS)

Melet, Angélique; Meyssignac, Benoit; Almar, Rafael; Le Cozannet, Gonéri

2018-03-01

Coastal communities are threatened by sea-level changes operating at various spatial scales; global to regional variations are associated with glacier and ice sheet loss and ocean thermal expansion, while smaller coastal-scale variations are also related to atmospheric surges, tides and waves. Here, using 23 years (1993-2015) of global coastal sea-level observations, we examine the contribution of these latter processes to long-term sea-level rise, which, to date, have been relatively less explored. It is found that wave contributions can strongly dampen or enhance the effects of thermal expansion and land ice loss on coastal water-level changes at interannual-to-multidecadal timescales. Along the US West Coast, for example, negative wave-induced trends dominate, leading to negative net water-level trends. Accurate estimates of past, present and future coastal sea-level rise therefore need to consider low-frequency contributions of wave set-up and swash.

A group contribution method for the prediction of thermal conductivity of liquids and its application to the Prandtl number for vegetable oils

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

Rodenbush, C.M.; Viswanath, D.S.; Hsieh, F.H.

Data on thermal conductivity of liquids, as a function of temperature, are essential in the design of heat- and mass- transfer equipment. A number of correlations have been developed to predict thermal conductivity of liquids with limited success. Among the correlations proposed so far, only the correlation due to Nagvekar and Daubert is based on group contributions. In this paper, a new group contribution method is developed based on the Klaas and Viswanath method for prediction of thermal conductivity of liquids and the results are compared to the method of Nagvekar and Daubert and other existing correlations. The present methodmore » predicts thermal conductivity of some 228 liquids that encompass 1487 experimental data points with an average absolute deviation of 2.5%. The group contribution method is used to examine the temperature dependence of Prandtl number for vegetable oils.« less

FUT2 non-secretor status is associated with Type 1 diabetes susceptibility in Japanese children.

PubMed

Ihara, K; Fukano, C; Ayabe, T; Fukami, M; Ogata, T; Kawamura, T; Urakami, T; Kikuchi, N; Yokota, I; Takemoto, K; Mukai, T; Nishii, A; Kikuchi, T; Mori, T; Shimura, N; Sasaki, G; Kizu, R; Takubo, N; Soneda, S; Fujisawa, T; Takaya, R; Kizaki, Z; Kanzaki, S; Hanaki, K; Matsuura, N; Kasahara, Y; Kosaka, K; Takahashi, T; Minamitani, K; Matsuo, S; Mochizuki, H; Kobayashi, K; Koike, A; Horikawa, R; Teno, S; Tsubouchi, K; Mochizuki, T; Igarashi, Y; Amemiya, S; Sugihara, S

2017-04-01

To examine the contribution of the FUT2 gene and ABO blood type to the development of Type 1 diabetes in Japanese children. We analysed FUT2 variants and ABO genotypes in a total of 531 Japanese children diagnosed with Type 1 diabetes and 448 control subjects. The possible association of FUT2 variants and ABO genotypes with the onset of Type 1 diabetes was statistically examined. The se2 genotype (c.385A>T) of the FUT2 gene was found to confer susceptibility to Type 1A diabetes in a recessive effects model [odds ratio for se2/se2, 1.68 (95% CI 1.20-2.35); corrected P value = 0.0075]. The FUT2 gene contributed to the development of Type 1 diabetes in the present cohort of Japanese children. © 2016 Diabetes UK.

Methodological support for the further abstraction of and philosophical examination of empirical findings in the context of caring science.

PubMed

Lindberg, Elisabeth; Österberg, Sofia A; Hörberg, Ulrica

2016-01-01

Phenomena in caring science are often complex and laden with meanings. Empirical research with the aim of capturing lived experiences is one way of revealing the complexity. Sometimes, however, results from empirical research need to be further discussed. One way is to further abstract the result and/or philosophically examine it. This has previously been performed and presented in scientific journals and doctoral theses, contributing to a greater understanding of phenomena in caring science. Although the intentions in many of these publications are laudable, the lack of methodological descriptions as well as a theoretical and systematic foundation can contribute to an ambiguity concerning how the results have emerged during the analysis. The aim of this paper is to describe the methodological support for the further abstraction of and/or philosophical examination of empirical findings. When trying to systematize the support procedures, we have used a reflective lifeworld research (RLR) approach. Based on the assumptions in RLR, this article will present methodological support for a theoretical examination that can include two stages. In the first stage, data from several (two or more) empirical results on an essential level are synthesized into a general structure. Sometimes the analysis ends with the general structure, but sometimes there is a need to proceed further. The second stage can then be a philosophical examination, in which the general structure is discussed in relation to a philosophical text, theory, or concept. It is important that the theories are brought in as the final stage after the completion of the analysis. Core dimensions of the described methodological support are, in accordance with RLR, openness, bridling, and reflection. The methodological support cannot be understood as fixed stages, but rather as a guiding light in the search for further meanings.

Financial conflicts of interest and conclusions about neuraminidase inhibitors for influenza: an analysis of systematic reviews.

PubMed

Dunn, Adam G; Arachi, Diana; Hudgins, Joel; Tsafnat, Guy; Coiera, Enrico; Bourgeois, Florence T

2014-10-07

Industry funding and financial conflicts of interest may contribute to bias in the synthesis and interpretation of scientific evidence. To examine the association between financial conflicts of interest and characteristics of systematic reviews of neuraminidase inhibitors. Retrospective analysis. Reviews that examined the use of neuraminidase inhibitors in the prophylaxis or treatment of influenza, were published between January 2005 and May 2014, and used a systematic search protocol. Two investigators blinded to all information regarding the review authors independently assessed the presentation of evidence on the use of neuraminidase inhibitors as favorable or not favorable. Financial conflicts of interest were identified using the index reviews, other publications, and Web-based searches. Associations between financial conflicts of interest, favorability assessments, and presence of critical appraisals of evidence quality were analyzed. Twenty-six systematic reviews were identified, of which 13 examined prophylaxis and 24 examined treatment, accounting for 37 distinct assessments. Among assessments associated with a financial conflict of interest, 7 of 8 (88%) were classified as favorable, compared with 5 of 29 (17%) among those without a financial conflict of interest. Reviewers without financial conflicts of interest were more likely to include statements about the quality of the primary studies than those with financial conflicts of interest. The heterogeneity in populations and outcomes examined in the reviews precluded analysis of the contribution of selective inclusion of evidence on the discordance of the assessments made in the reviews. Many of the systematic reviews had overlapping authorship. Reviewers with financial conflicts of interest may be more likely to present evidence about neuraminidase inhibitors in a favorable manner and recommend the use of these drugs than reviewers without financial conflicts of interest. Australian National Health and Medical Research Council.

Early social behaviors and the trajectory of peer victimization across the school years.

PubMed

Sugimura, Niwako; Berry, Daniel; Troop-Gordon, Wendy; Rudolph, Karen D

2017-08-01

Research has established that long-term exposure to peer victimization is associated with higher levels of emotional and behavioral maladjustment. Yet, relatively little is known regarding predictors of stable versus declining victimization across extended periods of time. To fill this knowledge gap, the present study used latent growth curve modeling to examine the separate and unique contributions of 3 early social behaviors in 2nd grade (aggression, anxious solitude, and prosocial behavior) to victimization across 2nd to 8th grade. Five hundred and 76 youth (M = 7.96 years, SD = .34) reported their level of exposure to victimization once a year from 2nd to 8th grade, and their teachers rated each youth on the 3 social behaviors in 2nd grade. When examined separately, the analyses revealed that (a) all 3 social behaviors contributed to 2nd-grade victimization; (b) anxious solitude and prosocial behavior contributed to the trajectory of victimization differently for boys and girls; and (c) aggression and anxious solitude contributed to significantly different levels of 8th-grade victimization in girls. Of interest, some effects were stronger in boys during elementary school and others were stronger in girls after the transition to middle school. When examined simultaneously, aggression remained the only significant predictor of 2nd-grade victimization; both anxious solitude and prosocial behavior uniquely predicted the trajectory of victimization, and aggression and anxious solitude uniquely predicted 8th-grade victimization in girls. Results are discussed with regard to prevention of prolonged victimization, with attention to gender differences. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

Muslim Women in America and Hijab: A Study of Empowerment, Feminist Identity, and Body Image.

PubMed

Al Wazni, Anderson Beckmann

2015-10-01

This article presents an exploratory, qualitative study of 12 Muslim women living in the Triangle area of North Carolina, who were interviewed regarding their voluntary practice of hijab (Muslim tradition of veiling), exercise of choice in hijab, their relationship to feminist belief and identity, female empowerment, and body image. Through examining the influence of political movements in concert with market capitalism, this article examines how the hijab and those who voluntarily practice this Muslim tradition challenge or contradict mainstream images of what is marketed in the West as feminist. Moreover, this article seeks to examine how, if at all, the hijab empowers those women who practice it, whether it offers an avenue of female empowerment and liberation not traditionally included in prevailing feminist thought, and how this may contribute to third-wave feminist theory. This article informs social work practitioners of the strength of Muslim women, the exercise of choice in hijab, and contributions to feminist thought as participants respond to assumptions of oppression, patriarchal control, and prejudice in a post-9/11 society.

Genetic and environmental contributions to pro-social attitudes: a twin study of social responsibility.

PubMed

Rushton, J Philippe

2004-12-22

Although 51 twin and adoption studies have been performed on the genetic architecture of antisocial behaviour, only four previous studies have examined a genetic contribution to pro-social behaviour. Earlier work by the author with the University of London Institute of Psychiatry Adult Twin Register found that genes contributed approximately half of the variance to measures of self-report altruism, empathy, nurturance and aggression, including acts of violence. The present study extends those results by using a 22-item Social Responsibility Questionnaire with 174 pairs of monozygotic twins and 148 pairs of dizygotic twins. Forty-two per cent of the reliable variance was due to the twins' genes, 23% to the twins' common environment and the remainder to the twins' non-shared environment.

Genetic and environmental contributions to pro-social attitudes: a twin study of social responsibility.

PubMed Central

Rushton, J. Philippe

2004-01-01

Although 51 twin and adoption studies have been performed on the genetic architecture of antisocial behaviour, only four previous studies have examined a genetic contribution to pro-social behaviour. Earlier work by the author with the University of London Institute of Psychiatry Adult Twin Register found that genes contributed approximately half of the variance to measures of self-report altruism, empathy, nurturance and aggression, including acts of violence. The present study extends those results by using a 22-item Social Responsibility Questionnaire with 174 pairs of monozygotic twins and 148 pairs of dizygotic twins. Forty-two per cent of the reliable variance was due to the twins' genes, 23% to the twins' common environment and the remainder to the twins' non-shared environment. PMID:15615684

Trust in government and support for governmental regulation: the case of electronic health records.

PubMed

Herian, Mitchel N; Shank, Nancy C; Abdel-Monem, Tarik L

2014-12-01

This paper presents results from a public engagement effort in Nebraska, USA, which measured public opinions about governmental involvement in encouraging the use of electronic health records (EHRs). We examine the role of trust in government in contributing to public support for government involvement in the development of EHR technologies. We hypothesize that trust in government will lead to support for federal and state governmental encouragement of the use of EHRs among doctors and insurance companies. Further, because individual experiences with health-care professionals will reduce perceptions of risk, we expect that support for governmental involvement will be tempered by greater personal experience with the health-care industry. Examining a small survey of individuals on the issue, we find general support for both of our hypotheses. The findings suggest that trust in government does have a positive relationship with support for government involvement in the policy domain, but that the frequency of personal experiences with health-care providers reduces the extent to which the public supports governmental involvement in the development of EHR technology. This inquiry contributes to our understanding of public attitudes towards government involvement in EHRs in the United States specifically and contributes to social science examining links between trust in government and support for governmental activity in the emerging policy domain regarding electronic health records systems. © 2012 John Wiley & Sons Ltd.

Using Science Inquiry Methods to Promote Self-Determination and Problem-Solving Skills for Students with Moderate Intellectual Disability

ERIC Educational Resources Information Center

Miller, Bridget T.

2013-01-01

The purpose of this study was to investigate the use of guided science inquiry methods with self-monitoring checklists to support problem-solving for students with moderate cognitive disabilities in both science and functional daily activities. The present study contributes to the literature examining guided inquiry methods as a means for student…

Influence of Perceived Parenting Styles: Goal Orientations and Career Aspirations of High School Science Students in Thailand

ERIC Educational Resources Information Center

Koul, Ravinder; Lerdpornkulrat, Thanita; Poondej, Chanut

2016-01-01

There has been considerable research interest into the relationship between the parenting styles of Asians, and student motivation and achievement. The investigation presented in this paper contributes to the literature in this area by examining the influence of perceived parenting style on goal orientations and career aspirations of a sample of…

The Shuttering of Educational Studies: Neoliberalism, the Political Spectacle, and Social Injustice at a "World Class" University

ERIC Educational Resources Information Center

Dunn, Alyssa Hadley; Faison, Morgan Zacheya-Jewel

2015-01-01

This article examines the September 2012 closure of the Division of Educational Studies (DES) at Emory University. The authors present this discussion as an example of the ways that the neoliberalization of higher education contributes to the extinction of educational foundations programs. What happened at Emory is symptomatic of the impact that…

Radiation Effects: Overview for Space Environment Specialists

NASA Technical Reports Server (NTRS)

Ladbury, Ray

2017-01-01

Radiation Hardness Assurance (RHA) methodologies need to evolve to capitalize on the increased flexibility introduced by new models of space radiation environments. This presentation examines the characteristics of various radiation threats, the sources of error that RHA methodologies seek to control and the contributions of environment models to those errors. The influence of trends in microelectronic device technology is also considered.

Teachers' Evaluations for the Detection of Primary-School Children with Attention Deficit Hyperactivity Disorder

ERIC Educational Resources Information Center

Kypriotaki, Maria; Manolitsis, George

2010-01-01

The early detection of children with attention deficit hyperactivity disorder (ADHD) by teachers can contribute to the prevention of secondary disorders in a child and this can have serious implications for the child's overall development. The aims of the present study were to examine: (1) the validity of the original assessment of the teachers in…

Prekindergarten Children's Executive Functioning Skills and Achievement Gains: The Utility of Direct Assessments and Teacher Ratings

ERIC Educational Resources Information Center

Fuhs, Mary Wagner; Farran, Dale Clark; Nesbitt, Kimberly Turner

2015-01-01

An accumulating body of evidence suggests that young children who exhibit greater executive functioning (EF) skills in early childhood also achieve more academically. The goal of the present study was to examine the unique contributions of direct assessments and teacher ratings of children's EF skills at the beginning of prekindergarten (pre-k) to…

The Future of Animals, Cells, Models, and Systems in Research, Development, Education, and Testing: Proceedings of a Symposium.

ERIC Educational Resources Information Center

National Academy of Sciences - National Research Council, Washington, DC. Inst. of Lab. Animal Resources.

This volume contains the prepared papers and discussions of a National Academy of Sciences - National Research Council Symposium on the Future of Animals, Cells, Models, and Systems in Research, Development, Education, and Testing. The purpose of the symposium was to examine the past, present, and future contributions of animals to human health…

Modeling the Relationships between Cognitive-Linguistic Skills and Writing in Chinese among Elementary Grades Students

ERIC Educational Resources Information Center

Yeung, Pui-sze; Ho, Connie Suk-han; Chan, David Wai-ock; Chung, Kevin Kien-hoa

2013-01-01

The present study is a four-year longitudinal study examining the important predictors of writing of 340 Chinese children in elementary grades. Children's transcription skills (handwriting skills and spelling), and syntactic skills in grade 1 were significant predictors of text writing in grade 1-4 while ideation in grade 1 only contributed to…

A Case Study of Two Rural Secondary Schools in New Mexico: Perspectives on Leadership

ERIC Educational Resources Information Center

Iron Moccasin, Shawl D.

2012-01-01

The present study was designed to examine factors that led to the academic success of two rural secondary schools in New Mexico. The primary focus was on the characteristics and behaviors of leaders in two high-achieving rural schools and how these factors might have contributed to achievement of Adequate Yearly Progress (AYP) in school year…

Mutagens and carcinogens in foods. Epidemiologic review.

PubMed Central

Hislop, T. G.

1993-01-01

Evidence that diet contributes to the development of cancer is strengthening. This paper examines mutagens and carcinogens, such as naturally occurring substances, products of cooking and food processing, intentional and unintentional additives, and contaminants, found in foods. Such substances are present in minute quantities in the diets of average Canadians. Indication of health risk is largely limited to experimental laboratory evidence. PMID:8499796

Public Commitment, Resistance to Advertising, and Leisure Promotion in a School-Based Drug Abuse Prevention Program: A Component Dismantling Study

ERIC Educational Resources Information Center

Hernández-Serrano, Olga; Griffin, Kenneth W.; García-Fernández, José Manuel; Espada, Mireia; Orgilés José P.

2013-01-01

The objective of the present study was to examine the contribution of three intervention components (public commitment, resistance to advertising, and leisure promotion) on alcohol and protective variables in a school-based substance use prevention program. Participants included 480 Spanish students aged from 14 to 16 who received the…

Child Sexual Abuse, Coping Responses, Self-Blame, Posttraumatic Stress Disorder, and Adult Sexual Revictimization

ERIC Educational Resources Information Center

Filipas, Henrietta H.; Ullman, Sarah E

2006-01-01

The present study examined the psychological sequelae of child sexual abuse (CSA) and the factors that contributed to revictimization in the form of adult sexual assault (ASA) using a survey of 577 female college students. CSA characteristics, maladaptive coping in response to CSA, degree of self-blame at the time of the abuse and currently, and…

The UK Language Learning Crisis in the Public Media: A Critical Analysis

ERIC Educational Resources Information Center

Lanvers, Ursula; Coleman, James A.

2017-01-01

Low levels of foreign language learning in the United Kingdom have been attributed to a lack of interest and motivation which, it is claimed, is partly fostered by the media. The present study examines 90 UK newspaper articles that contributed to the public debate on the language learning crisis in the UK between February 2010 and February 2012.…

An Investigation of the Learning Strategies as Bias Factors in Second Language Cloze Tests

ERIC Educational Resources Information Center

Ajideh, Parviz; Yaghoubi-Notash, Massoud; Khalili, Abdolreza

2017-01-01

The present study investigated the contribution of the EFL students' learning strategies to the explanation of the variance in their results on language tests. More specifically, it examined the role of these strategies as bias factors in the results of English cloze tests. Based on this aim, first, 158 intermediate EFL learners were selected from…

A Study of Three Chippewa Families at Warroad, Minnesota and Their Historical and Cultural Contributions.

ERIC Educational Resources Information Center

Landin, Grace

The study presents some aspects of American Indian history and culture of the Warroad, Minnesota region, examining three well-known Chippewa families--Ka-Kay-Geesick, Lightning, and Thunder. These families were selected because of their significance in the area--Ka-Kay-Geesick was a well-known medicine man; the Lightning name is associated with…

Parent Psychopathology and Youth Internalizing Symptoms in an Urban Community: A Latent Growth Model Analysis

ERIC Educational Resources Information Center

Burstein, Marcy; Ginsburg, Golda S.; Petras, Hanno; Ialongo, Nicholas

2010-01-01

The present study examined the developmental trajectories of youth depression and anxiety symptoms from 6th through 12th grade in a low-income, urban sample (N = 141; mean age = 11.75 years; 88.7% African American). The study also tested the independent contribution of parent mood disorders, anxiety disorders, and substance use disorders assessed…

Quality of Life in Caregivers of Children and Adolescents with Intellectual Disabilities: Use of WHOQOL-BREF Survey

ERIC Educational Resources Information Center

Lin, Jin-Ding; Hu, Jung; Yen, Chia-Feng; Hsu, Shang-Wei; Lin, Lan-Ping; Loh, Ching-Hui; Chen, Mei-Hua; Wu, Sheng-Ru; Chu, Cordia M.; Wu, Jia-Ling

2009-01-01

The present study based on World Health Organization quality of life (WHOQOL-BREF) scale to examine quality of life of the caregivers caring for their children/adolescents with intellectual disabilities in Taiwan, and the factors contributing to their quality of life. Structured interviews were conducted with 597 caregivers of children/adolescents…

Do Actions Speak Louder than Words? Classroom Attitudes and Behavior in Relation to Bullying in Early Adolescence

ERIC Educational Resources Information Center

Scholte, Ron; Sentse, Miranda; Granic, Isabela

2010-01-01

The aim of the present study was to examine to what extent classroom factors (i.e., classroom antibullying attitudes and behavioral norms) contributed to individual bullying, after controlling for individual difference characteristics. Participants were 2,547 early adolescents (M = 13.4 years, SD = 0.63) from 109 middle school classes. Self- and…

Examining Social Studies Teachers' Cultural Competence in a South Carolina Suburban Public High School: Implications for Diversity Training

ERIC Educational Resources Information Center

Catoe, Stephanie Denise Lewis

2010-01-01

The purpose of the present study was to investigate the factors that contribute to the cultural competence of social studies teachers in a South Carolina suburban public high school. With increasing numbers of racially, ethnically and culturally diverse student populations in public schools, and decreasing numbers of racially, ethnically and…

Executive Functioning and Processing Speed in Age-Related Differences in Memory: Contribution of a Coding Task

ERIC Educational Resources Information Center

Baudouin, Alexia; Clarys, David; Vanneste, Sandrine; Isingrini, Michel

2009-01-01

The aim of the present study was to examine executive dysfunctioning and decreased processing speed as potential mediators of age-related differences in episodic memory. We compared the performances of young and elderly adults in a free-recall task. Participants were also given tests to measure executive functions and perceptual processing speed…

The Roles of Perceived Stress, Coping Styles, and Perceived Social Support on the Alcohol Consumption among American College Students

ERIC Educational Resources Information Center

Wynn, Jesse

2017-01-01

The intention of this study was to better understand how certain aspects in a college student's life (i.e., perceived stress, styles of coping, and social support) or how combinations of these variables may contribute to higher levels of alcohol consumption. The present study examined the relationship between perceived stress, functional coping…

The Contribution of Matched Envelope Dynamic Range to the Binaural Benefits in Simulated Bilateral Electric Hearing

ERIC Educational Resources Information Center

Chen, Fei; Wong, Lena L. N.; Qiu, Jianxin; Liu, Yehai; Azimi, Behnam; Hu, Yi

2013-01-01

Purpose: This study examined the effects of envelope dynamic-range mismatch on the intelligibility of Mandarin speech in noise by simulated bilateral electric hearing. Method: Noise-vocoded Mandarin speech, corrupted by speech-shaped noise at 5 and 0 dB signal-to-noise ratios, was presented unilaterally or bilaterally to 10 normal-hearing…

Disentangling Fine Motor Skills' Relations to Academic Achievement: The Relative Contributions of Visual-Spatial Integration and Visual-Motor Coordination

ERIC Educational Resources Information Center

Carlson, Abby G.; Rowe, Ellen; Curby, Timothy W.

2013-01-01

Recent research has established a connection between children's fine motor skills and their academic performance. Previous research has focused on fine motor skills measured prior to elementary school, while the present sample included children ages 5-18 years old, making it possible to examine whether this link remains relevant throughout…

Importance of Marital Characteristics and Marital Satisfaction: A Comparison of Asian Indians in Arranged Marriages and Americans in Marriages of Choice

ERIC Educational Resources Information Center

Madathil, Jayamala; Benshoff, James M.

2008-01-01

To date, little research has been published related to cross-cultural differences in such marital factors as love, intimacy, happiness, and satisfaction. The present study compares factors contributing to marital satisfaction and examines correlations between the importance of these factors and the level of satisfaction for three groups: Asian…

Child Sexual Abuse and Women's Sexual Health: The Contribution of CSA Severity and Exposure to Multiple Forms of Childhood Victimization

ERIC Educational Resources Information Center

Lacelle, Celine; Hebert, Martine; Lavoie, Francine; Vitaro, Frank; Tremblay, Richard E.

2012-01-01

Research studies have provided increasing evidence for the potential adverse impact of child sexual abuse on women's sexual health. The present study examined the association between child sexual abuse and sexual health while controlling for various forms of childhood victimization. Self-report questionnaires were administered to 889 young women…

Cross-Cultural Differences in the Development of Behavior Problems: Contributions of Infant Temperament in Russia and U.S.

ERIC Educational Resources Information Center

Maria A. Gartstein,; Slobodskaya, Helena R.; Kirchhoff, Cornelia; Putnam, Samuel P.

2013-01-01

The present study was designed to examine cross-cultural differences in longitudinal links between infant temperament toddler behavior problems in the U.S. (N= 250) and Russia (N= 129). Profiles of risk/protective temperament factors varied across the two countries, with fewer significant temperament effects observed for the Russian, relative to…

Structure, histochemistry and phytochemical profile of the bark of the sobol and aerial stem of Tontelea micrantha (Celastraceae - Hippocrateoideae).

PubMed

Mercadante-Simões, Maria Olívia; Mazzottini-Dos-Santos, Hellen C; Nery, Lays A; Ferreira, Peracio R B; Ribeiro, Leonardo M; Royo, Vanessa A; de Oliveira, Dario A

2014-09-01

The bark of the underground stem of Tontelea micrantha (Mart. ex. Schult.) A. C. Sm., a native Brazilian Cerrado species, is used in folk medicine for treating kidney ailments. The structures of the underground and the aerial stems were examined and their barks were analyzed for the presence of secondary metabolites. Bark fragments were processed according to conventional techniques in plant anatomy and their chemical compositions examined using histochemical and phytochemical tests, thin layer chromatography, and high-efficiency liquid chromatography. The underground stem is a sobol with unusual cambial activity. Laticifers that secrete terpenoids were present in the cortex and phloem of both organs and can contribute to the identification of the species in field. Druses were present in both barks, but mono-crystals were only observed in the sobol. Tannins, flavonoids, alkaloids, and terpenoids occurred in both types of bark, but carotenoids were only detected in the sobol. The similarities between these two organs indicate that the aerial stem bark has potential medicinal use and represents a plausible alternative to harvesting the sobol, which could contribute to the preservation of natural populations of this species.

Ontogenetic change in the abundance of mycosporine-like amino acids in non-zooxanthellate coral larvae

NASA Astrophysics Data System (ADS)

Yakovleva, Irina M.; Baird, Andrew H.

2005-11-01

Although mycosporine-like amino acids (MAAs) have been extensively investigated in reef-building corals, the sources of these MAAs and the process of their interconversion remain a topic of interest. Here we examined ontogenetic change in the abundance of MAAs in planula larvae of the spawning scleractinian coral Goniastrea retiformis in the absence of zooxanthellae and other dietary input. In order to examine the potential contribution of prokaryotes in the synthesis of MAAs in animal tissue, one group of larvae were treated with the antibiotic rifampicin. High concentrations of MAAs (mycosporine-glycine, shinorine, palythinol, asterina-330), were present in the asymbiotic eggs and adults; however, no MAAs were present in the endosymbiotic zooxanthellae. We documented a steady decline in the total MAA concentrations through time in larvae treated with rifampicin; however, in the absence of antibiotic there was a significant increase in the concentration of MAAs, driven by a sharp increase in the abundance of shinorine and palythinol between day 3 and 7. Our results suggest that MAA synthesis and conversion in G. retiformis larvae occurred in the absence of symbiotic zooxanthellae, and indicate a possible contribution of prokaryotes associated with the animal tissue to these processes.

Single-Ion Deconvolution of Mass Peak Overlaps for Atom Probe Microscopy.

PubMed

London, Andrew J; Haley, Daniel; Moody, Michael P

2017-04-01

Due to the intrinsic evaporation properties of the material studied, insufficient mass-resolving power and lack of knowledge of the kinetic energy of incident ions, peaks in the atom probe mass-to-charge spectrum can overlap and result in incorrect composition measurements. Contributions to these peak overlaps can be deconvoluted globally, by simply examining adjacent peaks combined with knowledge of natural isotopic abundances. However, this strategy does not account for the fact that the relative contributions to this convoluted signal can often vary significantly in different regions of the analysis volume; e.g., across interfaces and within clusters. Some progress has been made with spatially localized deconvolution in cases where the discrete microstructural regions can be easily identified within the reconstruction, but this means no further point cloud analyses are possible. Hence, we present an ion-by-ion methodology where the identity of each ion, normally obscured by peak overlap, is resolved by examining the isotopic abundance of their immediate surroundings. The resulting peak-deconvoluted data are a point cloud and can be analyzed with any existing tools. We present two detailed case studies and discussion of the limitations of this new technique.

3D Numerical Examination of Continental Mantle Lithosphere Response to Lower Crust Eclogitization and Nearby Slab Subduction

NASA Astrophysics Data System (ADS)

Janbakhsh, P.; Pysklywec, R.

2017-12-01

2D numerical modeling techniques have made great contribution to understanding geodynamic processes involved in crustal and lithospheric scale deformations for the past 20 years. The aim of this presentation is to expand the scope covered by previous researchers to 3 dimensions to address out-of-plane intrusion and extrusion of mantle material in and out of model space, and toroidal mantle wedge flows. In addition, 3D velocity boundary conditions can create more realistic models to replicate real case scenarios. 3D numerical experiments that will be presented are designed to investigate the density and viscosity effects of lower crustal eclogitization on the decoupling process of continental mantle lithosphere from the crust and its delamination. In addition, these models examine near-field effects of a subducting ocean lithosphere and a lithospheric scale fault zone on the evolution of the processes. The model solutions and predictions will also be compared against the Anatolian geology where subduction of Aegean and Arabian slabs, and the northern boundary with the North Anatolian Fault Zone are considered as two main contributing factors to anomalous crustal uplift, missing mantle lithosphere, and anomalous surface heat flux.

An analysis of Ph.D. examiners' reports in engineering

NASA Astrophysics Data System (ADS)

Prieto, Elena; Holbrook, Allyson; Bourke, Sid

2016-03-01

In recent years, there have been increasing calls for an overall transformation of the nature of engineering Ph.D. programs and the way theses are assessed. There exists a need to understand the examination process to ensure the best quality outcome for candidates in engineering. The work we present in this paper uses data collected between 2003 and 2010 for a total of 1220 Australian Ph.D. theses by analysing examiner reports. Our analysis indicates that Ph.D. theses in engineering, N = 106, differ considerably from those in other fields in areas such as gender of candidates and examiners and the examiners' geographical location. We also found that assessment areas such as significance and contribution of the thesis, publications arising from the thesis, breadth, depth and recency of the literature review and communication and editorial correctness are areas in which the proportion of text of engineering examiners' comments differs significantly from other fields.

Resolving Alliance Ruptures from an Attachment-Informed Perspective.

PubMed

Miller-Bottome, Madeleine; Talia, Alessandro; Safran, Jeremy D; Muran, J Christopher

2018-04-01

In this article, we examine how the different attachment patterns enable or hinder the resolution of ruptures in the therapeutic alliance. We try to show that secure and insecure patients alike may experience ruptures in the therapeutic alliance, but that their ability to participate in resolving such ruptures differ markedly. Recent findings with the Patient Attachment Coding System (PACS) show that attachment classifications manifest in psychotherapy as distinct ways of communicating about present internal experience. Secure patients disclose their present experience openly and invite attunement from the therapist, while insecure patients either minimize their contributions to the dialogue (avoidant) or the contributions of the therapist (preoccupied). Using examples from session transcripts, we demonstrate how secure patients are particularly responsive to resolution strategies that focus on here-and-now experience, while insecure patients' characteristic ways of communicating pose significant challenges to the resolution process.

Introduction: digital games as a context for cognitive development, learning, and developmental research.

PubMed

Blumberg, Fran C; Fisch, Shalom M

2013-01-01

The authors present reasons why developmental psychologists should care about children's and adolescents' digital game play. These reasons may be identified as: a) digital game play is an integral aspect of children's and adolescents' lives; b) digital game play contributes to learning and cognitive development; and c) developmental research has the potential to contribute to effective educational game design. The authors expand on these reasons with the goal of introducing or reintroducing to developmental psychologists a rich and very relevant context in which to examine children's and adolescents' applied cognitive development. Copyright © 2013 Wiley Periodicals, Inc., A Wiley Company.

Teaming up for Literacy: Examining Participants' Contributions to a Collaborative Family-Based Program

ERIC Educational Resources Information Center

Kumar, Tracey

2016-01-01

This study of participants' contributions to a university-based family literacy program was informed by both "funds of knowledge" (Moll, 1992) and "multiple literacies" (Auerbach, 1995). The study examined participants' contributions to the design, implementation, and evaluation of a university-based family literacy program. In…

Age and the Tenses of Life Satisfaction

PubMed Central

2013-01-01

Objective. People have a special capacity to live simultaneously in both chronological and biographical time. In this article, we examine reports of life satisfaction that span past, present, and future, considering how perceived changes in certain life domains are associated with overall perceived life trajectories. Methods. Analyses use men and women from the Midlife Development in the United States survey. We employ gender-stratified fixed effects regression models to examine the net effect of satisfaction with finances, partnerships/marriage, sex, contribution to others, work, health, and relationship with children on trajectories of overall life satisfaction. Results. Among men, partnership and financial satisfaction had the strongest association with life satisfaction. Women displayed a somewhat broader range of domains related to their trajectories of life satisfaction. Partnership was most important, but their sense of evolving life satisfaction was also tied to their relationship with their children, sexuality, work situation, contribution to others’ welfare, and financial situation. Discussion. We find several notable differences between men and women, but the most telling differences emerge among women themselves across chronological time. For women, partner satisfaction becomes considerably more important across the age groups, whereas sex, contribution to others, and relationships with children all decrease in their importance for overall life satisfaction. PMID:23704205

Self-Determination as a Psychological and Positive Youth Development Construct

PubMed Central

Hui, Eadaoin K. P.; Tsang, Sandra K. M.

2012-01-01

This paper presents a review of self-determination as a positive youth development construct. The definition and conceptualization of the concept are examined from the perspective of self-determination theory and the functional theory of self-determination. Theories of self-determination from the perspective of motivation and skills enhancement are examined. Factors contributing to self-determination, such as autonomy-supportive teaching and parenting style, culture, efficacy of intervention programmes, and the educational benefits of self-determination for students, are discussed. Strategies to promote self-determination in an educational context and implications for further research and practice are discussed. PMID:22649322

Social work and gender: An argument for practical accounts

PubMed Central

2015-01-01

This article contributes to the debate on gender and social work by examining dominant approaches within the field. Anti-discriminatory, woman-centered and intersectional accounts are critiqued for reliance upon both reification and isolation of gender. Via examination of poststructural, queer and trans theories within social work, the author then presents accounts based upon structural/materialist, ethnomethodological and discursive theories, in order to open up debates about conceptualization of gender. These are used to suggest that social work should adopt a focus on gender as a practical accomplishment that occurs within various settings or contexts. PMID:26273228

Audit of practice in sudden unexpected death in epilepsy (SUDEP) post mortems and neuropathological findings

PubMed Central

Michalak, Zuzanna; Wright, Gabriella; Dawson, Timothy; Hilton, David; Joshi, Abhijit; Diehl, Beate; Koepp, Matthias; Lhatoo, Samden; Sander, Josemir W.; Sisodiya, Sanjay M.

2015-01-01

Aims Sudden unexpected death in epilepsy (SUDEP) is one of the leading causes of death in people with epilepsy. For classification of definite SUDEP, a post mortem (PM), including anatomical and toxicological examination, is mandatory to exclude other causes of death. We audited PM practice as well as the value of brain examination in SUDEP. Methods We reviewed 145 PM reports in SUDEP cases from four UK neuropathology centres. Data were extracted for clinical epilepsy details, circumstances of death and neuropathological findings. Results Macroscopic brain abnormalities were identified in 52% of cases. Mild brain swelling was present in 28%, and microscopic pathologies relevant to cause or effect of seizures were seen in 89%. Examination based on whole fixed brains (76.6% of all PMs), and systematic regional sampling was associated with higher detection rates of underlying pathology (P < 0.01). Information was more frequently recorded regarding circumstances of death and body position/location than clinical epilepsy history and investigations. Conclusion Our findings support the contribution of examination of the whole fixed brain in SUDEP, with high rates of detection of relevant pathology. Availability of full clinical epilepsy‐related information at the time of PM could potentially further improve detection through targeted tissue sampling. Apart from confirmation of SUDEP, complete neuropathological examination contributes to evaluation of risk factors as well as helping to direct future research into underlying causes. PMID:26300477

Oxidation of basaltic tephras: Influence on reflectance in the 1 micron region

NASA Technical Reports Server (NTRS)

Farrand, William H.; Singer, Robert B.

1991-01-01

As part of a ongoing study into the products of hydrovolcanism, tuffs were examined from the Cerro Colorado and Pavant Butte tuff cones. The former resides in the northeastern corner of the Pinacate Volcanic Field in Sonara, Mexico and the latter is in the Black Rock Desert of southern Utah. Numerous samples were collected and many of these had their Vis/IR reflectance measured. It seems likely that in the palagonite tuffs there is a combination of nanocrystalline ferric oxide phases contributing to the UV absorption edge, but not to the 1 micron band, plus more crystalline ferric oxides which do contribute to that band as well as ferrous iron within unaltered sideromelane which is skewing the band center to longer wavelengths. This work has implications for the study of Mars. The present work indicates that when ferrous and ferric iron phases are both present, their combined spectral contribution is a single band in the vicinity of 1 micron. The center, depth, and width of that feature has potential to be used to gauge the relative proportions of ferrous and ferric iron phases.

Important considerations when applying for a postdoctoral fellowship.

PubMed

Sherry, Daisy; Fennessy, Michelle M; Benavente, Viola G; Ruppar, Todd M; Collins, Eileen G

2013-06-01

To examine important decision points that graduates should consider before applying for a postdoctoral fellowship. A literature review was performed. A synthesis of the present data on the postdoctoral fellowship, eligibility criteria, application process, and important considerations was provided. Experiential knowledge from four present postdoctoral fellows was included. The goals, advantages, and disadvantages of the fellowship were discussed. In conclusion, the postdoctoral fellowship was examined to offer important considerations in the decision to pursue this opportunity. The clinical relevance of this article is related to the training and education of nurses to become the next generation of independent, successful scholars and scientists. Postdoctoral training adds valuable contributions and quality to the field of nursing. Published 2013. This article is a U.S. Government work and is in the public domain in the USA.

Animal Models of Resistance Exercise and their Application to Neuroscience Research

PubMed Central

Strickland, Justin C.; Smith, Mark A.

2016-01-01

Background Numerous studies have demonstrated that participation in regular resistance exercise (e.g., strength training) is associated with improvements in mental health, memory, and cognition. However, less is known about the neurobiological mechanisms mediating these effects. The goal of this mini-review is to describe and evaluate the available animal models of resistance exercise that may prove useful for examining CNS activity. New Method Various models have been developed to examine resistance exercise in laboratory animals. Comparison with Existing Methods Resistance exercise models vary in how the resistance manipulation is applied, either through direct stimulation of the muscle (e.g., in situ models) or through behavior maintained by operant contingencies (e.g., whole organism models). Each model presents distinct advantages and disadvantages for examining central nervous system (CNS) activity, and consideration of these attributes is essential for the future investigation of underlying neurobiological substrates. Results Potential neurobiological mechanisms mediating the effects of resistance exercise on pain, anxiety, memory, and drug use have been efficiently and effectively investigated using resistance exercise models that minimize stress and maximize the relative contribution of resistance over aerobic factors. Conclusions Whole organism resistance exercise models that (1) limit the use of potentially stressful stimuli and (2) minimize the contribution of aerobic factors will be critical for examining resistance exercise and CNS function. PMID:27498037

Roles of Perceived Sexist Events and Perceived Social Support in the Mental Health of Women Seeking Counseling

ERIC Educational Resources Information Center

Moradi, Bonnie; Funderburk, Jamie R.

2006-01-01

The authors of the present study contribute to research on the role of sexist events in women's mental health by examining the sexism-distress relation (a) with a sample of women who are seeking mental health services and (b) in the context of the additional roles of perceived social support in positive self-appraisal (i.e., empowerment and…

Distractor Devaluation Effect in the Attentional Blink: Direct Evidence for Distractor Inhibition

ERIC Educational Resources Information Center

Kihara, Ken; Yagi, Yoshihiko; Takeda, Yuji; Kawahara, Jun I.

2011-01-01

When two targets (T1 and T2) are embedded in rapid serial visual presentation (RSVP), T2 is often missed (attentional blink, AB) if T2 follows T1 by less than 500 ms. Some have proposed that inhibition of a distractor following T1 contributes to the AB, but no direct evidence supports this proposal. This study examined distractor inhibition by…

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…

An Elementary Teacher's Narrative Identity Work at Two Points in Time Two Decades Apart

ERIC Educational Resources Information Center

Lutovac, Sonja; Kaasila, Raimo

2018-01-01

The number of studies on how the process of identity work takes place in pre- and in-service teacher training contexts has recently increased. This narrative study contributes to this body of work by examining one elementary teacher's identity work in the context of teaching mathematics at two points in time--the present, as an experienced…

A 4-Year Longitudinal Investigation of the Processes by Which Parents and Peers Influence the Development of Early Adolescent Girls' Bulimic Symptoms

ERIC Educational Resources Information Center

Blodgett Salafia, Elizabeth H.; Gondoli, Dawn M.

2011-01-01

Bulimic symptoms are fairly common among adolescent girls, and the dual pathway model outlines one possible etiological chain leading to bulimic symptoms. The present study seeks to longitudinally examine the pathways proposed by this model while focusing on the relative contribution of parents and peers (via direct encouragement or pressure to be…

What Is on Our Children's Minds? An Analysis of Children's Writings as Reflections of Group-Specific Socialisation Practices

ERIC Educational Resources Information Center

Denessen, Eddie; Hornstra, Lisette; van den Bergh, Linda

2010-01-01

In the present study it has been examined how children's creative writing tasks may contribute to teachers' understanding of children's values. Writings of 300 elementary school children about what they would do if they were the boss of The Netherlands were obtained and seemed to reflect different types of values. Most children were concerned with…

Text Comprehension in Chinese Children: Relative Contribution of Verbal Working Memory, Pseudoword Reading, Rapid Automated Naming, and Onset-Rime Phonological Segmentation

ERIC Educational Resources Information Center

Leong, Che Kan; Tse, Shek Kam; Loh, Ka Yee; Hau, Kit Tai

2008-01-01

The present study examined the role of verbal working memory (memory span, tongue twister), 2-character Chinese pseudoword reading, rapid automatized naming (letters, numbers), and phonological segmentation (deletion of rimes and onsets) in inferential text comprehension in Chinese in 518 Chinese children in Hong Kong in Grades 3 to 5. It was…

Examining the discovery of the human retrovirus.

PubMed

Kontaratos, N; Sourvinos, G; Spandidos, D A

2010-01-01

Retroviruses have been found in many bird and animal species where they often cause various types of cancer. Dr. Robert Gallo's contribution to the field of retrovirology and the link he established between RNA viruses and cancer has been significant. Historical aspects of his discoveries in the area of human retroviruses are presented and an attempt is made to focus attention on his outstanding role.

The Teacher Sense of Efficacy Scale: Validation Evidence and Behavioral Prediction. WCER Working Paper No. 2006-7

ERIC Educational Resources Information Center

Heneman, Herbert G., III; Kimball, Steven; Milanowski, Anthony

2006-01-01

The present study contributes to knowledge of the construct validity of the short form of the Teacher Sense of Efficacy Scale (and by extension, given their similar content and psychometric properties, to the long form). The authors' research involves: (1) examining the psychometric properties of the TSES on a large sample of elementary, middle,…

Longitudinal Analysis of the Role of Perceived Self-Efficacy for Self-Regulated Learning in Academic Continuance and Achievement

ERIC Educational Resources Information Center

Caprara, Gian Vittorio; Fida, Roberta; Vecchione, Michele; Del Bove, Giannetta; Vecchio, Giovanni Maria; Barbaranelli, Claudio; Bandura, Albert

2008-01-01

The present study examined the developmental course of perceived efficacy for self-regulated learning and its contribution to academic achievement and likelihood of remaining in school in a sample of 412 Italian students (48% males and 52% females ranging in age from 12 to 22 years). Latent growth curve analysis revealed a progressive decline in…

Understanding the Role Curriculum and Supports for Its Implementation Play in How Test-Only Beginning Special Education Teachers Learn about and Enact Reading Instruction

ERIC Educational Resources Information Center

Kamman, Margaret Lane

2009-01-01

Working under an activity theory framework, the present study was designed to determine how the activity settings, individual and contextual, contributed to the instructional practices and understandings of test-only beginning special education teachers. Specifically, the focus of this study was to examine how teachers with no formal teacher…

Does a Dynamic Test of Phonological Awareness Predict Early Reading Difficulties? A Longitudinal Study from Kindergarten through Grade 1

ERIC Educational Resources Information Center

Gellert, Anna S.; Elbro, Carsten

2017-01-01

A few studies have indicated that dynamic measures of phonological awareness may contribute uniquely to the prediction of early reading development. However, standard control measures have been few and limited by floor effects, thus limiting their predictive value. The purpose of the present study was to examine the predictive value of a dynamic…

Are health inequalities rooted in the past? Income inequalities in metabolic syndrome decomposed by childhood conditions

PubMed Central

San Sebastian, Miguel; Ivarsson, Anneli; Weinehall, Lars; Gustafsson, Per E.

2017-01-01

Abstract Background: Early life is thought of as a foundation for health inequalities in adulthood. However, research directly examining the contribution of childhood circumstances to the integrated phenomenon of adult social inequalities in health is absent. The present study aimed to examine whether, and to what degree, social conditions during childhood explain income inequalities in metabolic syndrome in mid-adulthood. Methods: The sample (N = 12 481) comprised all 40- and 50-year-old participants in the Västerbotten Intervention Program in Northern Sweden 2008, 2009 and 2010. Measures from health examinations were used to operationalize metabolic syndrome, which was linked to register data including socioeconomic conditions at age 40–50 years, as well as childhood conditions at participant age 10–12 years. Income inequality in metabolic syndrome in middle age was estimated by the concentration index and decomposed by childhood and current socioeconomic conditions using decomposition analysis. Results: Childhood conditions jointed explained 7% (men) to 10% (women) of health inequalities in middle age. Adding mid-adulthood sociodemographic factors showed a dominant contribution of chiefly current income and educational level in both gender. In women, the addition of current factors slightly attenuated the contribution of childhood conditions, but with paternal income and education still contributing. In contrast, the corresponding addition in men removed all explanation attributable to childhood conditions. Conclusions: Despite that the influence of early life conditions to adult health inequalities was considerably smaller than that of concurrent conditions, the study suggests that early interventions against social inequalities potentially could reduce health inequalities in the adult population for decades to come. PMID:27744345

The role of chaplains in maintaining the psychological health of military personnel: an historical and contemporary perspective.

PubMed

Seddon, Rachel L; Jones, Edgar; Greenberg, Neil

2011-12-01

For many hundred of years, military forces have included chaplains of various faiths. Although these personnel mainly concentrate on providing for the religious and spiritual needs of the armed forces, they also contribute to the mental health of service personnel. This article provides a historical overview of military chaplains, examines their contributions to the psychological health of allied forces in World War I and World War II, and offers an overview of the scope of their present and future mental health related activities. The importance of the relationship between medical officers and chaplains in diagnosing and treating mental health problems is also discussed. We conclude that chaplains are capable of contributing significantly to the mental health of armed forces personnel if they are able to do so in informal and collaborative way.

The History of Radio Astronomy and the National Radio Astronomy Observatory: Evolution Toward Big Science

NASA Astrophysics Data System (ADS)

Malphrus, Benjamin Kevin

1990-01-01

The purpose of this study is to examine the sequence of events that led to the establishment of the NRAO, the construction and development of instrumentation and the contributions and discovery events and to relate the significance of these events to the evolution of the sciences of radio astronomy and cosmology. After an overview of the resources, a brief discussion of the early days of the science is given to set the stage for an examination of events that led to the establishment of the NRAO. The developmental and construction phases of the major instruments including the 85-foot Tatel telescope, the 300-foot telescope, the 140-foot telescope, and the Green Bank lnterferometer are examined. The technical evolution of these instruments is traced and their relevance to scientific programs and discovery events is discussed. The history is told in narrative format that is interspersed with technical and scientific explanations. Through the use of original data technical and scientific information of historical concern is provided to elucidate major developments and events. An interpretive discussion of selected programs, events and technological developments that epitomize the contributions of the NRAO to the science of radio astronomy is provided. Scientific programs conducted with the NRAO instruments that were significant to galactic and extragalactic astronomy are presented. NRAO research programs presented include continuum and source surveys, mapping, a high precision verification of general relativity, and SETI programs. Cosmic phenomena investigated in these programs include galactic and extragalactic HI and HII, emission nebula, supernova remnants, cosmic masers, giant molecular clouds, radio stars, normal and radio galaxies, and quasars. Modern NRAO instruments including the VLA and VLBA and their scientific programs are presented in the final chapter as well as plans for future NRAO instruments such as the GBT.

Examination of the "CSI Effect" on Perceptions of Scientific and Testimonial Evidence in a Hong Kong Chinese Sample.

PubMed

Hui, Cora Y T; Lo, T Wing

2017-05-01

Television is a powerful medium through which to convey information and messages to the public. The recent proliferation of forensic science and criminal justice information throughout all forms of media, coupled with raised expectations toward forensic evidence, has led some to suspect that a "CSI effect" ( Crime Scene Investigation effect) is taking place. The present study contributes to the literature addressing the CSI effect in two ways. First, it examines whether the CSI effect exists in the Chinese population of Hong Kong. Second, using a mock-jury paradigm, it empirically examines a more integrative perspective of the CSI effect. It was found that, although the amount of media coverage involving forensic evidence does influence participants' perception of legal evidence to some degree, such a perception does not affect participants' legal decision making. Viewers of forensic dramas were not more likely to convict the defendant when forensic evidence was presented and not less likely to convict when only testimonial evidence was presented. The only significant predictor of the defendant's culpability when scientific evidence was presented was participants' ratings of the reliability of scientific evidence. Results from the present study lend no support to the existence of the CSI effect in Hong Kong.

Effects of semantic relatedness on recall of stimuli preceding emotional oddballs.

PubMed

Smith, Ryan M; Beversdorf, David Q

2008-07-01

Semantic and episodic memory networks function as highly interconnected systems, both relying on the hippocampal/medial temporal lobe complex (HC/MTL). Episodic memory encoding triggers the retrieval of semantic information, serving to incorporate contextual relationships between the newly acquired memory and existing semantic representations. While emotional material augments episodic memory encoding at the time of stimulus presentation, interactions between emotion and semantic memory that contribute to subsequent episodic recall are not well understood. Using a modified oddball task, we examined the modulatory effects of negative emotion on semantic interactions with episodic memory by measuring the free-recall of serially presented neutral or negative words varying in semantic relatedness. We found increased free-recall for words related to and preceding emotionally negative oddballs, suggesting that negative emotion can indirectly facilitate episodic free-recall by enhancing semantic contributions during encoding. Our findings demonstrate the ability of emotion and semantic memory to interact to mutually enhance free-recall.

Indigenous Knowledge and Sea Ice Science: What Can We Learn from Indigenous Ice Users?

NASA Astrophysics Data System (ADS)

Eicken, H.

2010-12-01

Drawing on examples mostly from Iñupiaq and Yup’ik sea-ice expertise in coastal Alaska, this contribution examines how local, indigenous knowledge (LIK) can inform and guide geophysical and biological sea-ice research. Part of the relevance of LIK derives from its linkage to sea-ice use and the services coastal communities derive from the ice cover. As a result, indigenous experts keep track of a broad range of sea-ice variables at a particular location. These observations are embedded into a broader worldview that speaks to both long-term variability or change and to the system of values associated with ice use. The contribution examines eight different contexts in which LIK in study site selection and assessment of a sampling campaign in the context of inter annual variability, the identification of rare or inconspicuous phenomena or events, the contribution by indigenous experts to hazard assessment and emergency response, the record of past and present climate embedded in LIK, and the value of holistic sea-ice knowledge in detecting subtle, intertwined patterns of environmental change. The relevance of local, indigenous sea-ice expertise in helping advance adaptation and responses to climate change as well as its potential role in guiding research questions and hypotheses are also examined. The challenges that may have to be overcome in creating an interface for exchange between indigenous experts and seaice researchers are considered. Promising approaches to overcome these challenges include cross-cultural, interdisciplinary education, and the fostering of Communities of Practice.

Predicting maternal parenting stress in middle childhood: the roles of child intellectual status, behaviour problems and social skills.

PubMed

Neece, C; Baker, B

2008-12-01

Parents of children with intellectual disabilities (ID) typically report elevated levels of parenting stress, and child behaviour problems are a strong predictor of heightened parenting stress. Interestingly, few studies have examined child characteristics beyond behaviour problems that may also contribute to parenting stress. The present longitudinal study examined the contribution of child social skills to maternal parenting stress across middle childhood, as well as the direction of the relationship between child social skills and parenting stress. Families of children with ID (n = 74) or typical development (TD) (n = 115) participated over a 2-year period. Maternal parenting stress, child behaviour problems and child social skills were assessed at child ages six and eight. Child social skills accounted for unique variance in maternal parenting stress above and beyond child intellectual status and child behaviour problems. As the children matured, there was a significant interaction between child social skills and behaviour problems in predicting parenting stress. With respect to the direction of these effects, a cross-lagged panel analysis indicated that early parenting stress contributed to later social skills difficulties for children, but the path from children's early social skills to later parenting stress was not supported, once child behaviour problems and intellectual status were accounted for. When examining parenting stress, child social skills are an important variable to consider, especially in the context of child behaviour problems. Early parenting stress predicted child social skills difficulties over time, highlighting parenting stress as a key target for intervention.

James Clerk Maxwell: Life and science

NASA Astrophysics Data System (ADS)

Marston, Philip L.

2016-07-01

Maxwell's life and science are presented with an account of the progression of Maxwell's research on electromagnetic theory. This is appropriate for the International Year of Light and Light-based Technologies, 2015. Maxwell's own confidence in his 1865 electromagnetic theory of light is examined, along with some of the difficulties he faced and the difficulties faced by some of his followers. Maxwell's interest in radiation pressure and electromagnetic stress is addressed, as well as subsequent developments. Some of Maxwell's other contributions to physics are discussed with an emphasis on the kinetic and molecular theory of gases. Maxwell's theistic perspective on science is illustrated, accompanied by examples of perspectives on Maxwell and his science provided by his peers and accounts of his interactions with those peers. Appendices examine the peer review of Maxwell's 1865 electromagnetic theory paper and the naming of the Maxwell Garnett effective media approximation and provide various supplemental perspectives. From Maxwell's publications and correspondence there is evidence he had a high regard for Michael Faraday. Examples of Maxwell's contributions to electromagnetic terminology are noted.

The impact of first-generation biofuels on the depletion of the global phosphorus reserve.

PubMed

Hein, Lars; Leemans, Rik

2012-06-01

The large majority of biofuels to date is "first-generation" biofuel made from agricultural commodities. All first-generation biofuel production systems require phosphorus (P) fertilization. P is an essential plant nutrient, yet global reserves are finite. We argue that committing scarce P to biofuel production involves a trade-off between climate change mitigation and future food production. We examine biofuel production from seven types of feedstock, and find that biofuels at present consume around 2% of the global inorganic P fertilizer production. For all examined biofuels, with the possible exception of sugarcane, the contribution to P depletion exceeds the contribution to mitigating climate change. The relative benefits of biofuels can be increased through enhanced recycling of P, but high increases in P efficiency are required to balance climate change mitigation and P depletion impacts. We conclude that, with the current production systems, the production of first-generation biofuels compromises food production in the future.

Eosinophils in Autoimmune Diseases

PubMed Central

Diny, Nicola L.; Rose, Noel R.; Čiháková, Daniela

2017-01-01

Eosinophils are multifunctional granulocytes that contribute to initiation and modulation of inflammation. Their role in asthma and parasitic infections has long been recognized. Growing evidence now reveals a role for eosinophils in autoimmune diseases. In this review, we summarize the function of eosinophils in inflammatory bowel diseases, neuromyelitis optica, bullous pemphigoid, autoimmune myocarditis, primary biliary cirrhosis, eosinophilic granulomatosis with polyangiitis, and other autoimmune diseases. Clinical studies, eosinophil-targeted therapies, and experimental models have contributed to our understanding of the regulation and function of eosinophils in these diseases. By examining the role of eosinophils in autoimmune diseases of different organs, we can identify common pathogenic mechanisms. These include degranulation of cytotoxic granule proteins, induction of antibody-dependent cell-mediated cytotoxicity, release of proteases degrading extracellular matrix, immune modulation through cytokines, antigen presentation, and prothrombotic functions. The association of eosinophilic diseases with autoimmune diseases is also examined, showing a possible increase in autoimmune diseases in patients with eosinophilic esophagitis, hypereosinophilic syndrome, and non-allergic asthma. Finally, we summarize key future research needs. PMID:28496445

Predicting College Success: The Relative Contributions of Five Social/Personality Factors, Five Cognitive/Learning Factors, and SAT Scores

PubMed Central

Hannon, Brenda

2014-01-01

To-date, studies have examined simultaneously the relative predictive powers of two or three factors on GPA. The present study examines the relative powers of five social/personality factors, five cognitive/learning factors, and SAT scores to predict freshmen and non-freshmen (sophomores, juniors, seniors) academic success (i.e., GPA). The results revealed many significant predictors of GPA for both freshmen and non-freshmen. However, subsequent regressions showed that only academic self-efficacy, epistemic belief of learning, and high-knowledge integration explained unique variance in GPA (19%-freshmen, 23.2%-non-freshmen). Further for freshmen, SAT scores explained an additional unique 10.6% variance after the influences attributed to these three predictors was removed whereas for non-freshmen, SAT scores failed to explain any additional variance. These results highlight the unique and important contributions of academic self-efficacy, epistemic belief of learning and high-knowledge integration to GPA beyond other previously-identified predictors. PMID:25568884

Electricity from biomass: A development strategy

NASA Astrophysics Data System (ADS)

1992-04-01

The purpose of this document is to review the current status of biomass power technology and to evaluate the future directions for development that could significantly enhance the contribution of biomass power to U.S. production of electricity. This document reviews the basic principles of biomass electric systems, the previous contributions of industry and the National Biomass Energy Programs to technology development, and the options for future technology development. It discusses the market for biomass electric technology and future needs for electric power production to help establish a market-oriented development strategy. It projects trends in the performance and cost of the technology and examines the changing dynamics of the power generation market place to evaluate specific opportunities for biomass power development. In a separate document, the Biomass Power Program Five Year R&D Plan, the details of schedules, funding, and roles of participating R&D organizations within the R&D program funded by the U.S. Department of Energy (DOE) are presented. In evaluating the future directions for research and development, two cases are examined.

On the structure of pressure fluctuations in simulated turbulent channel flow

NASA Technical Reports Server (NTRS)

Kim, John

1989-01-01

Pressure fluctuations in a turbulent channel flow are investigated by analyzing a database obtained from a direct numerical simulation. Detailed statistics associated with the pressure fluctuations are presented. Characteristics associated with the rapid (linear) and slow (nonlinear) pressure are discussed. It is found that the slow pressure fluctuations are larger than the rapid pressure fluctuations throughout the channel except very near the wall, where they are about the same magnitude. This is contrary to the common belief that the nonlinear source terms are negligible compared to the linear source terms. Probability density distributions, power spectra, and two-point correlations are examined to reveal the characteristics of the pressure fluctuations. The global dependence of the pressure fluctuations and pressure-strain correlations are also examined by evaluating the integral associated with Green's function representations of them. In the wall region where the pressure-strain terms are large, most contributions to the pressure-strain terms are from the wall region (i.e., local), whereas away from the wall where the pressure-strain terms are small, contributions are global. Structures of instantaneous pressure and pressure gradients at the wall and the corresponding vorticity field are examined.

The ILRS contribution to ITRF2008

NASA Astrophysics Data System (ADS)

Pavlis, E. C.; Luceri, V.; Sciarretta, C.; Kelm, R.

2009-04-01

Since over two decades, Satellite Laser Ranging (SLR) data contribute to the definition of the Terrestrial Reference Frame (TRF). Until the development of ITRF2000, the contributions were submitted in the form of a set of normal equations or a covariance matrix of station coordinates and their linear rates at a standard epoch. The development of ITRF2005 ushered a new era with the use of weekly or session contributions, allowing greater flexibility in the relative weighting and the combination of information from various techniques. Moreover, the need of a unique, official, representative solution for each Technique Service, based on the rigorous combination of the various Analysis Centers' contributions, gave the opportunity to all techniques to verify, as a first step, the intra-technique solution consistency and, immediately after, to engage in discussions and comparison of the internal procedures, leading to a harmonization and validation of these procedures and the adopted models in the inter-technique context. In many occasions, the time series approach joint with the intra- and inter-technique comparison steps also highlighted differences that previously went unnoticed, and corrected incompatibilities. During the past year we have been preparing the ILRS contribution to a second TRF developed in the same way, the ITRF2008. The ILRS approach is based strictly on the current IERS Conventions 2003 and our internal standards. The Unified Analysis Workshop in 2007 stressed a number of areas where each technique needed to focus more attention in future analyses. In the case of SLR, the primary areas of concern were tracking station biases, extending the data span used in the analysis, and target characteristics. The present re-analysis extends from 1983 to 2008, covering a 25-year period, the longest for any of the contributing techniques; although the network and data quality for the 1983-1993 period are significantly poorer than for the latter years, the overall SLR contribution will reinforce the stability of the datum definition, especially in terms of origin and scale. Engineers and analysts have also worked closely over the past two years to determine station biases, rationalize them through correlation with engineering events at the stations, and validate them through analysis. A separate effort focused on developing accurate satellite target signatures for the primary targets contributing to the ITRF product (primarily LAGEOS 1 & 2). A detailed discussion of these works will be presented in a separate presentation. Here, we will restrict our presentation to the description of the individual series contributing to the combination, examine their relative quality and temporal coverage, and statistics of the initial, preliminary combined products.

Delineating the contribution of long-term associations to immediate recall.

PubMed

Saint-Aubin, Jean; Guérard, Katherine; Chamberland, Cindy; Malenfant, Amélie

2014-01-01

In the present study we examined the contribution of semantic associative links to short-term recall performance by using the separation effect first introduced in free recall studies (Glanzer, 1969). Pairs of associated words were inserted in the to-be-remembered lists. In two experiments associated words were better recalled than non-associated words, and were better recalled when they were adjacent in the list than when they were separated by one non-associated item. In addition results showed that forward associative links among pair members were as beneficial to immediate serial recall as backward associative links. Finally the benefit of associative links among pair members was observed with both forward and backward recall.

Does intuition cause cooperation?

PubMed

Verkoeijen, Peter P J L; Bouwmeester, Samantha

2014-01-01

Recently, researchers claimed that people are intuitively inclined to cooperate with reflection causing them to behave selfishly. Empirical support for this claim came from experiments using a 4-player public goods game with a marginal return of 0.5 showing that people contributed more money to a common project when they had to decide quickly (i.e., a decision based on intuition) than when they were instructed to reflect and decide slowly. This intuitive-cooperation effect is of high scientific and practical importance because it argues against a central assumption of traditional economic and evolutionary models. The first experiment of present study was set up to examine the generality of the intuitive-cooperation effect and to further validate the experimental task producing the effect. In Experiment 1, we investigated Amazon Mechanical Turk (AMT) workers' contributions to a 4-player public goods game with a marginal return of 0.5 while we manipulated the knowledge about the other players' contribution to the public goods game (contribution known vs. contribution unknown), the identity of the other players (humans vs. computers randomly generating contributions) and the time constraint (time pressure/intuition vs. forced delay/reflection). However, the results of Experiment 1 failed to reveal an intuitive-cooperation effect. Furthermore, four subsequent direct replications attempts with AMT workers (Experiments 2a, 2b, 2c and Experiment 3, which was conducted with naïve/inexperienced participants) also failed to demonstrate intuitive-cooperation effects. Taken together, the results of the present study could not corroborate the idea that people are intuitively cooperative, hence suggesting that the theoretical relationship between intuition and cooperation should be further scrutinized.

Does Intuition Cause Cooperation?

PubMed Central

Verkoeijen, Peter P. J. L.; Bouwmeester, Samantha

2014-01-01

Recently, researchers claimed that people are intuitively inclined to cooperate with reflection causing them to behave selfishly. Empirical support for this claim came from experiments using a 4-player public goods game with a marginal return of 0.5 showing that people contributed more money to a common project when they had to decide quickly (i.e., a decision based on intuition) than when they were instructed to reflect and decide slowly. This intuitive-cooperation effect is of high scientific and practical importance because it argues against a central assumption of traditional economic and evolutionary models. The first experiment of present study was set up to examine the generality of the intuitive-cooperation effect and to further validate the experimental task producing the effect. In Experiment 1, we investigated Amazon Mechanical Turk (AMT) workers' contributions to a 4-player public goods game with a marginal return of 0.5 while we manipulated the knowledge about the other players' contribution to the public goods game (contribution known vs. contribution unknown), the identity of the other players (humans vs. computers randomly generating contributions) and the time constraint (time pressure/intuition vs. forced delay/reflection). However, the results of Experiment 1 failed to reveal an intuitive-cooperation effect. Furthermore, four subsequent direct replications attempts with AMT workers (Experiments 2a, 2b, 2c and Experiment 3, which was conducted with naïve/inexperienced participants) also failed to demonstrate intuitive-cooperation effects. Taken together, the results of the present study could not corroborate the idea that people are intuitively cooperative, hence suggesting that the theoretical relationship between intuition and cooperation should be further scrutinized. PMID:24801381

The Dean as Administrator: Roles, Functions and Attributes. A Compilation of Presentations from the Executive Development Series I: "Have You Ever Thought of Being a Dean?" (1980-1981). Volume I.

ERIC Educational Resources Information Center

American Association of Colleges of Nursing, Washington, DC.

The role and attributes of deans of nursing as administrators of baccalaureate or higher degree programs are considered by six deans who contributed to a continuing education workshop series. In addition to outlining skills and attributes needed by administrators, Elizabeth Grossman examines five basic administrative functions: planning,…

Conflict termination and military strategy: Coercion, persuasion, and war

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

Cimbala, S.J.; Dunn, K.A.

1987-01-01

The contributors examine a wide variety of topics ranging from superpower views on conflict termination to past, present, and future U.S. military service contributions. They aim to highlight the importance of thinking about conflict termination goals and objectives in peacetime to insure that plans that may be used in war have been carefully evaluated outside the heat of battle, when the emotions created by war might cloud decision making.

Human Factors in Accidents Involving Remotely Piloted Aircraft

NASA Technical Reports Server (NTRS)

Merlin, Peter William

2013-01-01

This presentation examines human factors that contribute to RPA mishaps and provides analysis of lessons learned. RPA accident data from U.S. military and government agencies were reviewed and analyzed to identify human factors issues. Common contributors to RPA mishaps fell into several major categories: cognitive factors (pilot workload), physiological factors (fatigue and stress), environmental factors (situational awareness), staffing factors (training and crew coordination), and design factors (human machine interface).

Brief Report: Examining the Association of Autism and Adverse Childhood Experiences in the National Survey of Children's Health: The Important Role of Income and Co-Occurring Mental Health Conditions

ERIC Educational Resources Information Center

Kerns, Connor Morrow; Newschaffer, Craig J.; Berkowitz, Steven; Lee, Brian K.

2017-01-01

Adverse childhood experiences (ACEs) are risk factors for mental and physical illness and more likely to occur for children with autism spectrum disorder (ASD). The present study aimed to clarify the contribution of poverty, intellectual disability and mental health conditions to this disparity. Data on child and family characteristics, mental…

Age related increase in mTOR activity contributes to the pathological changes in ovarian surface epithelium

PubMed Central

Bajwa, Preety; Nagendra, Prathima B.; Nielsen, Sarah; Sahoo, Subhransu S.; Bielanowicz, Amanda; Lombard, Janine M.; Wilkinson, Erby J.; Miller, Richard A.; Tanwar, Pradeep S.

2016-01-01

Ovarian cancer is a disease of older women. However, the molecular mechanisms of ovarian aging and their contribution to the pathogenesis of ovarian cancer are currently unclear. mTOR signalling is a major regulator of aging as suppression of this pathway extends lifespan in model organisms. Overactive mTOR signalling is present in up to 80% of ovarian cancer samples and is associated with poor prognosis. This study examined the role of mTOR signalling in age-associated changes in ovarian surface epithelium (OSE). Histological examination of ovaries from both aged mice and women revealed OSE cell hyperplasia, papillary growth and inclusion cysts. These pathological lesions expressed bonafide markers of ovarian cancer precursor lesions, Pax8 and Stathmin 1, and were presented with elevated mTOR signalling. To understand whether overactive mTOR signalling is responsible for the development of these pathological changes, we analysed ovaries of the Pten trangenic mice and found significant reduction in OSE lesions compared to controls. Furthermore, pharmacological suppression of mTOR signalling significantly decreased OSE hyperplasia in aged mice. Treatment with mTOR inhibitors reduced human ovarian cancer cell viability, proliferation and colony forming ability. Collectively, we have established the role of mTOR signalling in age-related OSE pathologies and initiation of ovarian cancer. PMID:27036037

Male and female contributions to behavioral isolation in darters as a function of genetic distance and color distance

PubMed Central

Moran, Rachel L.; Zhou, Muchu; Catchen, Julian M.; Fuller, Rebecca C.

2017-01-01

Abstract Determining which reproductive isolating barriers arise first between geographically isolated lineages is critical to understanding allopatric speciation. We examined behavioral isolation among four recently diverged allopatric species in the orangethroat darter clade (Etheostoma: Ceasia). We also examined behavioral isolation between each Ceasia species and the sympatric rainbow darter Etheostoma caeruleum. We asked (1) is behavioral isolation present between allopatric Ceasia species, and how does this compare to behavioral isolation with E. caeruleum, (2) does male color distance and/or genetic distance predict behavioral isolation between species, and (3) what are the relative contributions of female choice, male choice, and male competition to behavioral isolation? We found that behavioral isolation, genetic differentiation, and male color pattern differentiation were present between allopatric Ceasia species. Males, but not females, discerned between conspecific and heterospecific mates. Males also directed more aggression toward conspecific rival males. The high levels of behavioral isolation among Ceasia species showed no obvious pattern with genetic distance or male color distance. However, when the E. caeruleum was included in the analysis, an association between male aggression and male color distance was apparent. We discuss the possibility that reinforcement between Ceasia and E. caeruleum is driving behavioral isolation among allopatric Ceasia species. PMID:28776645

Evidence for a differential contribution of early perceptual and late cognitive processes during encoding to episodic memory impairment in schizophrenia.

PubMed

Green, Amity E; Fitzgerald, Paul B; Johnston, Patrick J; Nathan, Pradeep J; Kulkarni, Jayashri; Croft, Rodney J

2017-08-01

Schizophrenia is characterised by significant episodic memory impairment that is thought to be related to problems with encoding, however the neuro-functional mechanisms underlying these deficits are not well understood. The present study used a subsequent recognition memory paradigm and event-related potentials (ERPs) to investigate temporal aspects of episodic memory encoding deficits in schizophrenia. Electroencephalographic data was recorded in 24 patients and 19 healthy controls whilst participants categorised single words as pleasant/unpleasant. ERPs were generated to subsequently recognised versus unrecognised words on the basis of a forced-choice recognition memory task. Subsequent memory effects were examined with the late positive component (LPP). Group differences in N1, P2, N400 and LPP were examined for words correctly recognised. Patients performed more poorly than controls on the recognition task. During encoding patients had significantly reduced N400 and LPP amplitudes than controls. LPP amplitude correlated with task performance however amplitudes did not differ between patients and controls as a function of subsequent memory. No significant differences in N1 or P2 amplitude or latency were observed. The present results indicate that early sensory processes are intact and dysfunctional higher order cognitive processes during encoding are contributing to episodic memory impairments in schizophrenia.

An equity analysis of health examination service utilization by women from underdeveloped areas in western China

PubMed Central

Gao, Jianmin; Zhou, Zhongliang; Yan, Ju’e; Xu, Yongjian; Yang, Xiaowei; Li, Yanli

2017-01-01

Objective This study sought to examine the sources of inequity in health examination service utilization by women from underdeveloped areas in western China. Methods Based on data from the 5th National Health Service Survey in Shaanxi province, women’s utilization of health examination services was examined according to gynecological, cervical smear, and breast examination rates. The equity of health examination service utilization by 15- to 64-year-old women and the factors contributing to inequity were determined using the health concentration index, decomposition of the concentration index, and the horizontal inequity index. Results The examination rates for gynecological, cervical smear, and breast exams for 15- to 64-year-old women in Shaanxi province were 40.61%, 27.08%, and 24.59%, respectively. The horizontal inequity indices of gynecological, cervical smear, and breast examination rates were 0.0480, 0.0423, and 0.0764, respectively, and each examination rate was higher for wealthy individuals. The contribution rates of economic status to the inequalities in gynecological, cervical smear, and breast examination rates were 65.80%, 74.31%, and 56.49%, respectively. The contribution rates of educational status to the inequalities in gynecological, cervical smear, and breast examination rates were 21.01%, 14.83% and 30.00%, respectively. The contribution rates of age to the inequalities in gynecological, cervical smear, and breast examination rates were 25.77%, 26.55%, and 18.40%, respectively. Conclusions Women’s health examination rates differed between populations with different socio-demographic characteristics. There is pro-wealth inequality in each examination rate. This study found that financial status, age, and education level were the main reasons for the unequal utilization of health examination services. PMID:29065129

Behaviors and Motivations observed in the Zooniverse

NASA Astrophysics Data System (ADS)

Gay, P. L.; Brown, S.; Huang, A. D.; Lehan, C.; Moon Zoo Team

2010-12-01

Today, the total number of astronomers and geophysicists working in academia is dwarfed by the legions of citizen scientists who are flocking to citizen science programs like Moon Zoo, StarDust@Home, Solar Storm Watch, and Be a Martian. Through the Zooniverse collection of projects (including Moon Zoo and Solar Storm Watch), more than 2-dozen peer-reviewed science papers have been generated. These everyday people are, in their spare time, accomplishing necessary tasks and proving themselves to be a vital part of the research pipeline. While it is now understood they can make meaningful contributions to research, the questions of why they are contributing, and how they interact with the projects are still being investigated. In this presentation, preliminary results of a two-part study of Zooniverse user motivations and behaviors are presented. Motivations: We present the results of two sets of studies: detailed research into the motivations of Galaxy Zoo users during the Galaxy Zoo 1 and 2 projects and preliminary results into the investigations of Moon Zoo users. From Galaxy Zoo, we know that the largest primary motivation for people participating in Galaxy Zoo is the desire to contribute to science. At the time of this writing, interviews are being prepared to see if Moon Zoo users have similar motivations to Galaxy Zoo users, and to understand the personal context in which they make their contributions. Behaviors: As users explore the Zooniverse, they have the opportunity to participate in multiple science projects, to consume educational content, to take advantage of tutorials, and to be part of a community on the forums. Preliminary results examining how users moved between different science projects during the duration of Galaxy Zoo 2, and how they are moving between content and classifications in Galaxy Zoo Hubble and Moon Zoo are presented.

Assessing dependency using self-report and indirect measures: examining the significance of discrepancies.

PubMed

Cogswell, Alex; Alloy, Lauren B; Karpinski, Andrew; Grant, David A

2010-07-01

The present study addressed convergence between self-report and indirect approaches to assessing dependency. We were moderately successful in validating an implicit measure, which was found to be reliable, orthogonal to 2 self-report instruments, and predictive of external criteria. This study also examined discrepancies between scores on self-report and implicit measures, and has implications for their significance. The possibility that discrepancies themselves are pathological was not supported, although discrepancies were associated with particular personality profiles. Finally, this study offered additional evidence for the relation between dependency and depressive symptomatology and identified implicit dependency as contributing unique variance in predicting past major depression.

Common sense behavior modification: a guide for practitioners.

PubMed

Horwitz, Debra F; Pike, Amy L

2014-05-01

Behavior problems are often given as a reason for pet relinquishment to shelters. When presented with any behavior problem, veterinarians should perform a thorough physical examination (including neurologic and orthopedic examination) and a minimum database, including a complete blood cell count, chemistry panel, and total T4 and free T4 by equilibrium dialysis if values are low to rule out any medical contributions. Veterinarians should be a source of information regarding management, safety, and basic behavior modification for common behavior problems. Additionally, various control devices offer pet owners the ability to better manage their pets in difficult situations. Copyright © 2014 Elsevier Inc. All rights reserved.

Science investigation: the views of 14 to 16 year old pupils

NASA Astrophysics Data System (ADS)

Toplis, Rob; Cleaves, Anna

2006-05-01

This paper reports research about upper secondary school pupils' views about science investigations in school. Although researchers, teachers and examiners have expressed opinions about investigative work in science, there have been relatively few studies of pupils' experiences. The present study identified pupils' concerns about the limited time available, timing of the investigations, lack of familiarity with apparatus and the association of investigation almost exclusively with assessment, all factors which contributed to stress. One exceptional school apart, pupils perceived the teacher's role as a didactic supporter of strategies to maximise performance for assessment. We discuss these views and examine the potential for putting policy into practice.

The effects of air leaks on solar air heating systems

NASA Technical Reports Server (NTRS)

Elkin, R.; Cash, M.

1979-01-01

This paper presents the results of an investigation to determine the effects of leakages in collector and duct work on the system performance of a typical single-family residence solar air heating system. Positive (leakage out) and negative (leakage in) pressure systems were examined. Collector and duct leakage rates were varied from 10 to 30 percent of the system flow rate. Within the range of leakage rates investigated, solar contribution to heated space and domestic hot water loads was found to be reduced up to 30 percent from the no-leak system contribution with duct leakage equally divided between supply and return duct; with supply duct leakage greater than return leakage a reduction of up to 35 percent was noted. The negative pressure system exhibited a reduction in solar contribution somewhat larger than the positive pressure system for the same leakage rates.

Recent decrease in typhoon destructive potential and global warming implications.

PubMed

Lin, I-I; Chan, Johnny C L

2015-05-20

Typhoons (tropical cyclones) severely impact the half-billion population of the Asian Pacific. Intriguingly, during the recent decade, typhoon destructive potential (Power Dissipation Index, PDI) has decreased considerably (by ∼ 35%). This decrease, paradoxically, has occurred despite the increase in typhoon intensity and ocean warming. Using the method proposed by Emanuel (in 2007), we show that the stronger negative contributions from typhoon frequency and duration, decrease to cancel the positive contribution from the increasing intensity, controlling the PDI. Examining the typhoons' environmental conditions, we find that although the ocean condition became more favourable (warming) in the recent decade, the atmospheric condition 'worsened' at the same time. The 'worsened' atmospheric condition appears to effectively overpower the 'better' ocean conditions to suppress PDI. This stronger negative contribution from reduced typhoon frequency over the increased intensity is also present under the global warming scenario, based on analysis of the simulated typhoon data from high-resolution modelling.

Bloodstream infections in haematology: risks and new challenges for prevention.

PubMed

Worth, Leon J; Slavin, Monica A

2009-05-01

Bloodstream infections are an important cause of morbidity and mortality in the haematology population, and may contribute to delayed administration of chemotherapy, increased length of hospitalisation, and increased healthcare expenditure. For gram-positive, gram-negative, anaerobic and fungal infections, specific risk factors are recognised. Unique host and environmental factors contributing to pathogenesis are acknowledged in this population. Trends in spectrum and antimicrobial susceptibility of pathogens are examined, and potential contributing factors are discussed. These include the widespread use of empiric antimicrobial therapy, increasingly intensive chemotherapeutic regimens, frequent use of central venous catheters, and local infection control practices. In addition, the risks and benefits of prophylaxis, and spectrum of endemic flora are identified as relevant factors within individual centres. Finally, challenges are presented regarding prevention, early detection, surveillance and prophylaxis. To reduce the rate and impact of bloodstream infections multifaceted and customised strategies are required within individual haematology units.

Moving shadows contribute to the corridor illusion in a chimpanzee (Pan troglodytes).

PubMed

Imura, Tomoko; Tomonaga, Masaki

2009-08-01

Previous studies have reported that backgrounds depicting linear perspective and texture gradients influence relative size discrimination in nonhuman animals (known as the "corridor illusion"), but research has not yet identified the other kinds of depth cues contributing to the corridor illusion. This study examined the effects of linear perspective and shadows on the responses of a chimpanzee (Pan troglodytes) to the corridor illusion. The performance of the chimpanzee was worse when a smaller object was presented at the farther position on a background reflecting a linear perspective, implying that the corridor illusion was replicated in the chimpanzee (Imura, Tomonaga, & Yagi, 2008). The extent of the illusion changed as a function of the position of the shadows cast by the objects only when the shadows were moving in synchrony with the objects. These findings suggest that moving shadows and linear perspective contributed to the corridor illusion in a chimpanzee. Copyright 2009 APA, all rights reserved.

Mothers' marital adaptation following the birth of twins or singletons: empirical evidence and practical insights.

PubMed

Taubman-Ben-Ari, Orit; Findler, Liora; Bendet, Chaya; Stanger, Varda; Ben-Shlomo, Shirley; Kuint, Jacob

2008-08-01

Parenting twins is typically portrayed as more stressful than is parenting single children and, therefore, more of a strain on the marital relationship. With this in mind, the present study examined the contribution of infant characteristics and mother's internal resources (attachment style) and external resources (maternal and paternal grandmothers' perceived support) to their marital adaptation during the first month following delivery, comparing mothers of twins (n = 88) with mothers of singletons (n = 82). The findings indicate that both internal and external resources contribute to the marital adaptation of the two groups, even beyond the contribution of specific circumstances. Thus, it seems that the birth of twins and the birth of a single child are normative life events that have more in common than previously acknowledged. The implications for the focus of social work interventions, particularly in the case of the birth of twins, are discussed.

Methodological support for the further abstraction of and philosophical examination of empirical findings in the context of caring science

PubMed Central

Lindberg, Elisabeth; Österberg, Sofia A.; Hörberg, Ulrica

2016-01-01

Phenomena in caring science are often complex and laden with meanings. Empirical research with the aim of capturing lived experiences is one way of revealing the complexity. Sometimes, however, results from empirical research need to be further discussed. One way is to further abstract the result and/or philosophically examine it. This has previously been performed and presented in scientific journals and doctoral theses, contributing to a greater understanding of phenomena in caring science. Although the intentions in many of these publications are laudable, the lack of methodological descriptions as well as a theoretical and systematic foundation can contribute to an ambiguity concerning how the results have emerged during the analysis. The aim of this paper is to describe the methodological support for the further abstraction of and/or philosophical examination of empirical findings. When trying to systematize the support procedures, we have used a reflective lifeworld research (RLR) approach. Based on the assumptions in RLR, this article will present methodological support for a theoretical examination that can include two stages. In the first stage, data from several (two or more) empirical results on an essential level are synthesized into a general structure. Sometimes the analysis ends with the general structure, but sometimes there is a need to proceed further. The second stage can then be a philosophical examination, in which the general structure is discussed in relation to a philosophical text, theory, or concept. It is important that the theories are brought in as the final stage after the completion of the analysis. Core dimensions of the described methodological support are, in accordance with RLR, openness, bridling, and reflection. The methodological support cannot be understood as fixed stages, but rather as a guiding light in the search for further meanings. PMID:26925926

Audit of practice in sudden unexpected death in epilepsy (SUDEP) post mortems and neuropathological findings.

PubMed

Thom, Maria; Michalak, Zuzanna; Wright, Gabriella; Dawson, Timothy; Hilton, David; Joshi, Abhijit; Diehl, Beate; Koepp, Matthias; Lhatoo, Samden; Sander, Josemir W; Sisodiya, Sanjay M

2016-08-01

Sudden unexpected death in epilepsy (SUDEP) is one of the leading causes of death in people with epilepsy. For classification of definite SUDEP, a post mortem (PM), including anatomical and toxicological examination, is mandatory to exclude other causes of death. We audited PM practice as well as the value of brain examination in SUDEP. We reviewed 145 PM reports in SUDEP cases from four UK neuropathology centres. Data were extracted for clinical epilepsy details, circumstances of death and neuropathological findings. Macroscopic brain abnormalities were identified in 52% of cases. Mild brain swelling was present in 28%, and microscopic pathologies relevant to cause or effect of seizures were seen in 89%. Examination based on whole fixed brains (76.6% of all PMs), and systematic regional sampling was associated with higher detection rates of underlying pathology (P < 0.01). Information was more frequently recorded regarding circumstances of death and body position/location than clinical epilepsy history and investigations. Our findings support the contribution of examination of the whole fixed brain in SUDEP, with high rates of detection of relevant pathology. Availability of full clinical epilepsy-related information at the time of PM could potentially further improve detection through targeted tissue sampling. Apart from confirmation of SUDEP, complete neuropathological examination contributes to evaluation of risk factors as well as helping to direct future research into underlying causes. © 2015 The Authors. Neuropathology and Applied Neurobiology published by John Wiley & Sons Ltd on behalf of British Neuropathological Society.

Visual Cues Contribute Differentially to Audiovisual Perception of Consonants and Vowels in Improving Recognition and Reducing Cognitive Demands in Listeners With Hearing Impairment Using Hearing Aids.

PubMed

Moradi, Shahram; Lidestam, Björn; Danielsson, Henrik; Ng, Elaine Hoi Ning; Rönnberg, Jerker

2017-09-18

We sought to examine the contribution of visual cues in audiovisual identification of consonants and vowels-in terms of isolation points (the shortest time required for correct identification of a speech stimulus), accuracy, and cognitive demands-in listeners with hearing impairment using hearing aids. The study comprised 199 participants with hearing impairment (mean age = 61.1 years) with bilateral, symmetrical, mild-to-severe sensorineural hearing loss. Gated Swedish consonants and vowels were presented aurally and audiovisually to participants. Linear amplification was adjusted for each participant to assure audibility. The reading span test was used to measure participants' working memory capacity. Audiovisual presentation resulted in shortened isolation points and improved accuracy for consonants and vowels relative to auditory-only presentation. This benefit was more evident for consonants than vowels. In addition, correlations and subsequent analyses revealed that listeners with higher scores on the reading span test identified both consonants and vowels earlier in auditory-only presentation, but only vowels (not consonants) in audiovisual presentation. Consonants and vowels differed in terms of the benefits afforded from their associative visual cues, as indicated by the degree of audiovisual benefit and reduction in cognitive demands linked to the identification of consonants and vowels presented audiovisually.

Examining educational attainment, prepregnancy smoking rate, and delay discounting as predictors of spontaneous quitting among pregnant smokers.

PubMed

White, Thomas J; Redner, Ryan; Skelly, Joan M; Higgins, Stephen T

2014-10-01

We investigated three potential predictors (educational attainment, prepregnancy smoking rate, and delay discounting [DD]) of spontaneous quitting among pregnant smokers. These predictors were examined alone and in combination with other potential predictors using study-intake assessments from controlled clinical trials examining the efficacy of financial incentives for smoking cessation and relapse prevention. Data from 349 pregnant women (231 continuing smokers and 118 spontaneous quitters) recruited from the greater Burlington, VT, area contributed to this secondary analysis, including psychiatric/sociodemographic characteristics, smoking characteristics, and performance on a computerized DD task. Educational attainment, smoking rate, and DD values were each significant predictors of spontaneous quitting in univariate analyses. A model examining those three predictors together retained educational attainment as a main effect and revealed a significant interaction of DD and smoking rate (i.e., DD was a significant predictor at lower but not higher smoking rates). A final model considering all potential predictors, included education, the interaction of DD and smoking rate, and five additional predictors (i.e., stress ratings, the belief that smoking during pregnancy will "greatly harm my baby," age of smoking initiation, marital status, and prior quit attempts during pregnancy). The study presented here contributes new knowledge on predictors of spontaneous quitting among pregnant smokers with substantive practical implications for reducing smoking during pregnancy. (PsycINFO Database Record (c) 2014 APA, all rights reserved).

Vitreous floaters.

PubMed

Roufail, E D; Polkinghorne, Philip

2006-01-01

Floaters are a common presenting ophthalmic symptom that may accompany sight-threatening disorders. In most cases, they are often secondary to benign, degenerative changes in the vitreous. In this review, we briefly examine the anatomy of the vitreous and describe how degenerative vitreous change contributes to the development of floaters. The causality of floaters in the presence and absence of a posterior vitreous detachment is reviewed, as is the clinical significance of these symptoms and signs in relation to their predictive value for determining the presence of sight-threatening retinal tears and/or detachment. Finally, a brief review of management options for debilitating floaters is presented.

Dysthymic disorder contributes to oppositional defiant behaviour in children with Attention Deficit Hyperactivity Disorder, combined type (ADHD-CT).

PubMed

Vance, Alasdair; Sanders, Michelle; Arduca, Yolanda

2005-06-01

The specific relationships between oppositional defiant disorder (ODD), ADHD-CT, dysthymic disorder (DD) and anxiety disorders symptoms have not been studied in children with ADHD-CT. The relationship to DD is important because DD is common, has an earlier age of onset, is associated with significant morbidity and with increased rates of treatment non-responsiveness when comorbid with major depressive disorder and/or ADHD-CT. 200 clinically referred children with ADHD-CT, without comorbid major depressive disorder, were identified. "ODD", "ADHD-CT", "DD" and "anxiety disorders" symptoms were defined by composite measures of (1) semi-structured clinical interview and (2) parent and/or child standardized questionnaires. Standard multiple regression was used to examine how well "ADHD-CT", "DD" and "anxiety disorders" symptoms predict "ODD" symptoms. Only "ADHD-CT" (15% of the variance) and "DD" (8% of the variance) symptoms made independent significant contributions to the prediction of "ODD" symptoms. The study's sample size did not allow "ODD" and "conduct disorder" symptoms to be analysed separately. The association of DD with ODD may reflect a unique contribution of DD to ODD in children, whether ADHD-CT is present or not, or only when ADHD-CT is present.

The physical examination as a window into autonomic disorders.

PubMed

Cheshire, William P; Goldstein, David S

2018-02-01

Signs of autonomic dysfunction, although at times seemingly mysterious, can contribute to diagnostic clarification and clinical investigation. Even when sophisticated autonomic testing equipment is not readily available, the experienced clinician, through educated observation and inductive reasoning-in conjunction with an intelligently obtained autonomic medical history-can discern much by a careful physical examination. Elements of the autonomic examination include variations in the pulse, postural measurements of blood pressure and heart rate, pupillary light reactions, skin coloration and temperature, patterns of sweating, and other organ-specific physical findings relevant to the individual patient's presentation. Especially important is the often neglected practice of measuring the blood pressure standing up, for orthostatic hypotension cannot be diagnosed by symptoms alone and is a common source of potential morbidity. The examination should be carried out in the context of understanding the syndromic nature of abnormalities of components of the autonomic nervous system.

The impact of fornix lesions in rats on spatial learning tasks sensitive to anterior thalamic and hippocampal damage

PubMed Central

Dumont, Julie R.; Amin, Eman; Wright, Nicholas F.; Dillingham, Christopher M.; Aggleton, John P.

2015-01-01

The present study sought to understand how the hippocampus and anterior thalamic nuclei are conjointly required for spatial learning by examining the impact of cutting a major tract (the fornix) that interconnects these two sites. The initial experiments examined the consequences of fornix lesions in rats on spatial biconditional discrimination learning. The rationale arose from previous findings showing that fornix lesions spare the learning of spatial biconditional tasks, despite the same task being highly sensitive to both hippocampal and anterior thalamic nuclei lesions. In the present study, fornix lesions only delayed acquisition of the spatial biconditional task, pointing to additional contributions from non-fornical routes linking the hippocampus with the anterior thalamic nuclei. The same fornix lesions spared the learning of an analogous nonspatial biconditional task that used local contextual cues. Subsequent tests, including T-maze place alternation, place learning in a cross-maze, and a go/no-go place discrimination, highlighted the impact of fornix lesions when distal spatial information is used flexibly to guide behaviour. The final experiment examined the ability to learn incidentally the spatial features of a square water-maze that had differently patterned walls. Fornix lesions disrupted performance but did not stop the rats from distinguishing the various corners of the maze. Overall, the results indicate that interconnections between the hippocampus and anterior thalamus, via the fornix, help to resolve problems with flexible spatial and temporal cues, but the results also signal the importance of additional, non-fornical contributions to hippocampal-anterior thalamic spatial processing, particularly for problems with more stable spatial solutions. PMID:25453745

Transactional relations between caregiving stress, executive functioning, and problem behavior from early childhood to early adolescence

PubMed Central

LaGasse, Linda L.; Conradt, Elisabeth; Karalunas, Sarah L.; Dansereau, Lynne M.; Butner, Jonathan E.; Shankaran, Seetha; Bada, Henrietta; Bauer, Charles R.; Whitaker, Toni M.; Lester, Barry M.

2016-01-01

Developmental psychopathologists face the difficult task of identifying the environmental conditions that may contribute to early childhood behavior problems. Highly stressed caregivers can exacerbate behavior problems, while children with behavior problems may make parenting more difficult and increase caregiver stress. Unknown is: (1) how these transactions originate, (2) whether they persist over time to contribute to the development of problem behavior and (3) what role resilience factors, such as child executive functioning, may play in mitigating the development of problem behavior. In the present study, transactional relations between caregiving stress, executive functioning, and behavior problems were examined in a sample of 1,388 children with prenatal drug exposures at three developmental time points: early childhood (birth-age 5), middle childhood (ages 6 to 9), and early adolescence (ages 10 to 13). Transactional relations differed between caregiving stress and internalizing versus externalizing behavior. Targeting executive functioning in evidence-based interventions for children with prenatal substance exposure who present with internalizing problems and treating caregiving psychopathology, depression, and parenting stress in early childhood may be particularly important for children presenting with internalizing behavior. PMID:27427803

The chemistry and transport of methane and carbon monoxide in the troposphere

NASA Technical Reports Server (NTRS)

Peters, L. K.; Chameides, W. L.

1980-01-01

The present understanding of the physical and chemical behavior of methane, carbon monoxide and the chemical species involved in the conversion of CH4 to CO in the troposphere is reviewed. Following a brief summary of CO and CH4 emission and reactions in urban areas, attention is given to measurements of the spatial and temporal distributions of CO and CH4 in the rural atmosphere, the contribution of the oceans to atmospheric CO and CH4 concentrations, and interactions of CH4 and CO with soils and vegetation. Estimates of the transport of CH4 and CO from the troposphere to the stratosphere are discussed, and photochemical reactions of the constituents are examined. Two- and three-dimensional models for CH4 and CO transport are presented, and possible future variations in atmospheric abundances of the molecules are considered. Finally, present estimates of the global methane and carbon dioxide budgets are summarized, and it is pointed out that, despite the large contribution of anthropogenic sources, the budgets appear to be in balance.

An augmented dopamine system function is present prior to puberty in the methylazoxymethanol acetate rodent model of schizophrenia.

PubMed

Chen, Li; Perez, Stephanie M; Lodge, Daniel J

2014-09-01

Schizophrenia is a disease typically associated with an adolescent onset. Although there have been a considerable number of imaging studies investigating the transition to psychosis in prodromal patients, there are relatively few preclinical studies examining potential mechanisms that may contribute to adolescent onset. We have previously demonstrated, in the methylazoxymethanol acetate (MAM) rodent model of schizophrenia, that an enhanced activity within the ventral hippocampus may underlie the dopamine system hyperfunction, suggested to contribute to positive symptoms in patients. Here we demonstrate that the aberrant regulation of dopamine system function, in MAM-treated rats, is present prior to puberty. Furthermore, we now report that while the afferent regulation of ventral tegmental area dopamine neurons (from the hippocampus and pedunculopontine tegmental area) appears intact in preadolescent rats, the behavioral response to alterations in dopamine system function appears to be attenuated in preadolescent rats. Thus, we posit that the pathological alterations underlying psychosis may be present prior to symptom onset and that the "normal" development of the postsynaptic side of the dopamine system may underlie the transition to psychosis. © 2014 Wiley Periodicals, Inc.

Emergent literacy profiles of preschool-age children with specific language impairment.

PubMed

Cabell, Sonia Q; Lomax, Richard G; Justice, Laura M; Breit-Smith, Allison; Skibbe, Lori E; McGinty, Anita S

2010-12-01

The primary aim of the present study was to explore the heterogeneity of emergent literacy skills among preschool-age children with specific language impairment (SLI) through examination of profiles of performance. Fifty-nine children with SLI were assessed on a battery of emergent literacy skills (i.e., alphabet knowledge, print concepts, emergent writing, rhyme awareness) and oral language skills (i.e., receptive/expressive vocabulary and grammar). Cluster analysis techniques identified three emergent literacy profiles: (1) Highest Emergent Literacy, Strength in Alphabet Knowledge; (2) Average Emergent Literacy, Strength in Print Concepts; and (3) Lowest Emergent Literacy across Skills. After taking into account the contribution of child age, receptive and expressive language skills made a small contribution to the prediction of profile membership. The present findings, which may be characterized as exploratory given the relatively modest sample size, suggest that preschool-age children with SLI display substantial individual differences with regard to their emergent literacy skills and that these differences cannot be fully determined by children's age or oral language performance. Replication of the present findings with a larger sample of children is needed.

Microbiological sampling of returned Surveyor 3 electrical cabling

NASA Technical Reports Server (NTRS)

Knittel, M. D.; Favero, M. S.; Green, R. H.

1972-01-01

A piece of electrical wiring bundle running from the television camera to another part of the spacecraft was selected for microbiological examination. Sampling methods are discussed. The results presented show that no viable microorganisms were recovered from the part of the Surveyor 3 cable which was tested. Factors that could have contributed to the sterility of the cable are thermal vacuum testing, natural dieoff, change in pressure during launch, and lunar vacuum and temperature.

The "Fair Share" Dilemma: Property Wealth, Per Pupil Revenue and Resident Ability To Support Public Elementary and Secondary Education in West Virginia 1991-92. A Technical Report.

ERIC Educational Resources Information Center

Hughes, Mary F.

This report examines factors that contribute to the differences in local education funding, per pupil revenue, and local resident ability to support present and future educational services in West Virginia. Based on a variety of data generated during 1989-92, the study indicates: (1) the differences in support for local education are attributed to…

Interaction of Reward Seeking and Self-Regulation in the Prediction of Risk Taking: A Cross-National Test of the Dual Systems Model

ERIC Educational Resources Information Center

Duell, Natasha; Steinberg, Laurence; Chein, Jason; Al-Hassan, Suha M.; Bacchini, Dario; Lei, Chang; Chaudhary, Nandita; Di Giunta, Laura; Dodge, Kenneth A.; Fanti, Kostas A.; Lansford, Jennifer E.; Malone, Patrick S.; Oburu, Paul; Pastorelli, Concetta; Skinner, Ann T.; Sorbring, Emma; Tapanya, Sombat; Uribe Tirado, Liliana Maria; Alampay, Liane Peña

2016-01-01

In the present analysis, we test the dual systems model of adolescent risk taking in a cross-national sample of over 5,200 individuals aged 10 through 30 (M = 17.05 years, SD = 5.91) from 11 countries. We examine whether reward seeking and self-regulation make independent, additive, or interactive contributions to risk taking, and ask whether…

Mapa Sociolinguistico. Analisis demolinguistico de la Comunidad Autonoma Vasca derivado del padron de 1986 (Sociolinguistic Map. Demolinguistic analysis of the Autonomous Basque Community derived from the 1986 Census).

ERIC Educational Resources Information Center

Basque Autonomous Community, Vitoria (Spain). General Secretariat of Linguistic Policy.

Sociolinguistic data are presented in the form of sophisticated maps and tables in this pioneering study on the status of the Basque language. Based on information collected from the 1986 census, the major demographic characteristics of Basque are examined in order to ascertain the factors and processes that have contributed to its current status.…

Characterization of MHC-II antigen presentation by B cells and monocytes from older individuals

PubMed Central

HL, Clark; R, Banks; L, Jones; TR, Hornick; PA, Higgins; CJ, Burant; DH, Canaday

2012-01-01

In this study we examine the effects of aging on antigen presentation of B cells and monocytes. We compared the antigen presentation function of peripheral blood B cells from young and old subjects using a system that specifically measures the B cell receptor (BCR)-mediated MHC-II antigen presentation. Monocytes were studied as well. Overall the mean magnitude of antigen presentation of soluble antigen and peptide was not different in older and younger subjects for both B cells and monocytes. Older subjects, however, showed increased heterogeneity of BCR-mediated antigen presentation by their B cells. The magnitude and variability of peptide presentation, which does not require uptake and processing, was the same between groups. Presentation by monocytes had similar variability between the older and younger subjects. These data suggest that poor B cell antigen processing, which results in diminished presentation in some older individuals may contribute to poor vaccine responses. PMID:22797466

Role of Echocardiograghy in Treating a Case of Double Chamber Right Ventricle with Delayed Presentation.

PubMed

Barik, Ramachandra

2017-01-01

The clinical diagnosis of double chamber right ventricle (DCRV) is not straightforward. Clinical history, clinical examination, 12-lead electrocardiogram, chest X-ray, and Echocardiography (echo) contribute to morphological diagnosis. Cardiac catheterization is essential for hemodynamic evaluation. A thorough presurgical workup helps the cardiac surgeon to choose the appropriate surgical approach and timing of surgery in an individual case. We present a case of a DCRV who presented to us in the fifth decade of life. Echo confirmed the morphological diagnosis and cardiac catheterization complemented the exact pull back gradient across the obstruction in the right ventricle. This patient was suggested muscle bundle resection and ventricular septal defect closure using right atrial approach.

Contributions of regional and intercontinental transport to surface ozone in the Tokyo area

NASA Astrophysics Data System (ADS)

Yoshitomi, M.; Wild, O.; Akimoto, H.

2011-08-01

Japan lies downwind of the Asian continent and for much of the year air quality is directly influenced by emissions of ozone precursors over these heavily-populated and rapidly-industrializing regions. This study examines the extent to which oxidant transport from regional and distant anthropogenic sources influences air quality in Japan in springtime, when these contributions are largest. We find that European and North American contributions to surface ozone over Japan in spring are persistent, averaging 3.5±1.1 ppb and 2.8±0.5 ppb respectively, and are greatest in cold continental outflow conditions following the passage of cold fronts. Contributions from China are larger, 4.0±2.8 ppb, and more variable, as expected for a closer source region, and are generally highest near cold fronts preceding the influence of more distant sources. The stratosphere provides a varying but ever-present background of ozone of about 11.2±2.5 ppb during spring. Local sources over Japan and Korea have a relatively small impact on mean ozone, 2.4±7.6 ppb, but this masks a strong diurnal signal, and local sources clearly dominate during episodes of high daytime ozone. By examining the meteorological mechanisms that favour transport from different source regions, we demonstrate that while maximum foreign influence generally does not occur at the same time as the greatest buildup of oxidants from local sources, it retains a significant influence under these conditions. It is thus clear that while meteorological boundaries provide some protection from foreign influence during oxidant outbreaks in Tokyo, these distant sources still make a substantial contribution to exceedance of the Japanese ozone air quality standard in springtime.

Contributions of regional and intercontinental transport to surface ozone in Tokyo

NASA Astrophysics Data System (ADS)

Yoshitomi, M.; Wild, O.; Akimoto, H.

2011-04-01

Japan lies downwind of the Asian continent and for much of the year air quality is directly influenced by emissions of ozone precursors over these heavily-populated and rapidly-industrializing regions. This study examines the extent to which oxidant transport from regional and distant anthropogenic sources influences air quality in Japan in springtime, when these contributions are largest. We find that European and North American contributions to surface ozone over Japan in spring are persistent, averaging 3.5±1.1 ppb and 2.8±0.5 ppb respectively, and are greatest in cold continental outflow conditions following the passage of cold fronts. Contributions from China are larger, 4.0±2.8 ppb, and more variable, as expected for a closer source region, and are generally highest near cold fronts preceding the influence of more distant sources. The stratosphere provides a varying but ever-present background of ozone of about 11.2±2.5 ppb during spring. Local sources over Japan and Korea have a relatively small impact on mean ozone, 2.4±7.6 ppb, but this masks a strong diurnal signal, and local sources clearly dominate during episodes of high daytime ozone. By examining the meteorological mechanisms that favour transport from different source regions, we demonstrate that while maximum foreign influence generally does not occur at the same time as the greatest buildup of oxidants from local sources, it retains a significant influence under these conditions. It is thus clear that while meteorological boundaries provide some protection from foreign influence during oxidant outbreaks in Tokyo, these distant sources still make a substantial contribution to exceedance of the Japanese ozone air quality standard in springtime.

Neglect of the foreign invisible: Historiography and the navigation of conflicting sensibilities.

PubMed

Burman, Jeremy Trevelyan

2015-05-01

This essay is intended first as a contribution to historiography, and only second as a contribution to the history of developmental psychology. It is therefore a discussion--primarily--of the doing of the history of psychology, rather than of its content. Briefly put: American psychology, including its associated approaches to the history of psychology, is not adequately equipped to benefit fully from the contributions of foreign scholars. To make the resulting argument clear, two archive-driven microhistories are reviewed, contrasted, augmented with new archival research, and synthesized: Yeh Hsueh's (2004) examination of the nomination process at Harvard University that led to the awarding of an honorary doctorate to Jean Piaget in 1936, and Marc Ratcliff and Paloma Borella's (2013) examination-just recently published in French-of a similar process that resulted in Piaget's hiring at Geneva in 1929 and his eventual promotion in 1940. Comparing the authors' different approaches to similar content then affords this article's larger argument: we need to broaden our sensibilities so we can see high-quality foreign contributions for what they are. Several interesting insights result if we do. Among them: although Piaget's theory is today mistakenly criticized for being asocial, and this serves as justification for countering his early works with Vygotsky's posthumous critique, it emerges from these archival studies that Piaget may have in fact chosen to present himself and his work as nonsociological (when this was not the case) for reasons unrelated to his intellectual project. Such examples then broaden the discussion of "neglect of the foreign invisible" to include suppression--even censorship (by self or other)--which in turn reflects the primary problem afforded by internationalization: by what standards are we to judge the contributions of "foreigners" into "our" discipline? (c) 2015 APA, all rights reserved).

Predicting maternal parenting stress in middle childhood: the roles of child intellectual status, behaviour problems and social skills

PubMed Central

Neece, C.; Baker, B.

2009-01-01

Background Parents of children with intellectual disabilities (ID) typically report elevated levels of parenting stress, and child behaviour problems are a strong predictor of heightened parenting stress. Interestingly, few studies have examined child characteristics beyond behaviour problems that may also contribute to parenting stress. The present longitudinal study examined the contribution of child social skills to maternal parenting stress across middle childhood, as well as the direction of the relationship between child social skills and parenting stress. Method Families of children with ID (n = 74) or typical development (TD) (n = 115) participated over a 2-year period. Maternal parenting stress, child behaviour problems and child social skills were assessed at child ages six and eight. Results Child social skills accounted for unique variance in maternal parenting stress above and beyond child intellectual status and child behaviour problems. As the children matured, there was a significant interaction between child social skills and behaviour problems in predicting parenting stress. With respect to the direction of these effects, a cross-lagged panel analysis indicated that early parenting stress contributed to later social skills difficulties for children, but the path from children’s early social skills to later parenting stress was not supported, once child behaviour problems and intellectual status were accounted for. Conclusion When examining parenting stress, child social skills are an important variable to consider, especially in the context of child behaviour problems. Early parenting stress predicted child social skills difficulties over time, highlighting parenting stress as a key target for intervention. PMID:18513339

Reference as an Interactive Achievement: Sequential and Longitudinal Analyses of Labeling Interactions in Shared Book Reading and Free Play.

PubMed

Heller, Vivien; Rohlfing, Katharina J

2017-01-01

The present study examines how young children and their caregivers establish reference by jointly developing stable patterns of bodily, perceptual, and interactive coordination. Our longitudinal investigation focuses on two mother-child dyads engaged in picture-book reading and play. The dyads were videotaped at home once every 6 weeks while the children aged from 9 to 24 months. Inspired by conversation analysis and multimodal analysis, our developmental approach builds on the insight that the situated and embodied production of reference is fundamentally an interactive achievement. To examine the acquisition of reference, we developed a descriptive instrument that takes account of not only the dyad's joint accomplishment but also each participant's contributions to it. The instrument is based on the sequential reconstruction of the jobs that both participants have to accomplish jointly in order to achieve reference: establishing visual perception as a relevant resource, constituting a domain of scrutiny, locating a target, and construing the (meaning of the) referent. Methodologically, these jobs serve as a tertium comparationis for the longitudinal comparison of both the adult's as well as the child's contributions to establishing reference. We used this instrument to examine (1) what bodily and verbal resources the participants employed, and (2) how their contributions to accomplishing the jobs changed over time. Findings showed that the acquisition of reference was closely related to the child's increasing ability to recognize, fulfill, and set up conditional relevancies. We conclude that the adult's dynamic and contextualized use of conditional relevancies, recipient design, and observability is a crucial driving force in the acquisition of reference.

Hip instability: a review of hip dysplasia and other contributing factors

PubMed Central

Kraeutler, Matthew J.; Garabekyan, Tigran; Pascual-Garrido, Cecilia; Mei-Dan, Omer

2016-01-01

Summary Background Hip instability has classically been associated with developmental dysplasia of the hip (DDH) in newborns and children. However, numerous factors may contribute to hip instability in children, adolescents, and adults. Purpose This review aims to concisely present the literature on hip instability in patients of all ages in order to guide health care professionals in the appropriate diagnosis and treatment of the various disorders which may contribute to an unstable hip. Methods We reviewed the literature on the diagnosis and surgical management of hip dysplasia and other causes of hip instability. Conclusions Multiple intra- and extra-articular variables may contribute to hip instability, including acetabular bony coverage, femoral torsion, femoroacetabular impingement, and soft tissue laxity. Physical examination and advanced imaging studies are essential to accurately diagnose the pathology contributing to a patient’s unstable hip. Conservative management, including activity modification and physical therapy, may be used as a first-line treatment in patients with intra-articular hip pathology. Patients who continue to experience symptoms of pain or instability should proceed with arthroscopic or open surgical treatment aimed at correcting the underlying pathology. Level of evidence V. PMID:28066739

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

Campbell, John M.; Ellis, R. Keith; Czakon, Michal

We present results for the production of a pair of on-shell Z bosons via gluon-gluon fusion. This process occurs both through the production and decay of the Higgs boson, and through continuum production where the Z boson couples to a loop of massless quarks or to a massive quark. We calculate the interference of the two processes and its contribution to the cross section up to and including order O(αmore » $$_{s}^{3}$$ ). The two-loop contributions to the amplitude are all known analytically, except for the continuum production through loops of top quarks of mass m. The latter contribution is important for the invariant mass of the two Z bosons, (as measured by the mass of their leptonic decay products, m$$_{4l}$$), in a regime where m$$_{4l}$$ ≥ 2m because of the contributions of longitudinal bosons. We examine all the contributions to the virtual amplitude involving top quarks, as expansions about the heavy top quark limit combined with a conformal mapping and Padé approximants. Comparison with the analytic results, where known, allows us to assess the validity of the heavy quark expansion, and it extensions. We give results for the NLO corrections to this interference, including both real and virtual radiation.« less

Touch Processing and Social Behavior in ASD.

PubMed

O Miguel, Helga; Sampaio, Adriana; Martínez-Regueiro, Rocío; Gómez-Guerrero, Lorena; López-Dóriga, Cristina Gutiérrez; Gómez, Sonia; Carracedo, Ángel; Fernández-Prieto, Montse

2017-08-01

Abnormal patterns of touch processing have been linked to core symptoms in ASD. This study examined the relation between tactile processing patterns and social problems in 44 children and adolescents with ASD, aged 6-14 (M = 8.39 ± 2.35). Multiple linear regression indicated significant associations between touch processing and social problems. No such relationships were found for social problems and autism severity. Within touch processing, patterns of hyper-responsiveness and hypo-responsiveness best predicted social problems, whereas sensory-seeking did not. These results support that atypical touch processing in individuals with ASD might be contributing to the social problems they present. Moreover, it the need to explore more in depth the contribution of sensory features to the ASD phenotype.

Race, ethnicity, and racism in medical anthropology, 1977-2002.

PubMed

Gravlee, Clarence C; Sweet, Elizabeth

2008-03-01

Researchers across the health sciences are engaged in a vigorous debate over the role that the concepts of "race" and "ethnicity" play in health research and clinical practice. Here we contribute to that debate by examining how the concepts of race, ethnicity, and racism are used in medical-anthropological research. We present a content analysis of Medical Anthropology and Medical Anthropology Quarterly, based on a systematic random sample of empirical research articles (n = 283) published in these journals from 1977 to 2002. We identify both differences and similarities in the use of race, ethnicity, and racism concepts in medical anthropology and neighboring disciplines, and we offer recommendations for ways that medical anthropologists can contribute to the broader debate over racial and ethnic inequalities in health.

[Chronic blepharitis: which role for Demodex folliculorum? A case report].

PubMed

Martinaud, C; Gaillard, T; Pons, S; Fournier, B; Brisou, P

2009-01-01

We present a 73-year-old woman presented to our hospital with a 2 years history of eyes itching. The ophthalmological testing was normal. Physical examination revealed blepharitis and lesions acnea-like on mouth, nose and chest. Biological testing revealed no abnormalities. Histologic study and direct immunofluorescence on a cutaneous biopsy were no contributive. The research of an allergic origine was practised by cutaneous and serological tests and negative. An examination of eyelashes was performed and yielded Demodex. Demodex folliculorum is a mite that is the most common permanent ectoparasite of humans, which is thought to be linked to blepharitis and allergic blepharoconjunctivis with rosacea, although much controversy persists. Recent studies demonstrate a high frequence of chronic blepharitis when Demodex are abundant. Several molecules can be used to treat this infestation. Parasiticide as oral ivermectine may be useful when the infestation is important.

Individual differences in episodic memory abilities predict successful prospective memory output monitoring.

PubMed

Hunter Ball, B; Pitães, Margarida; Brewer, Gene A

2018-02-07

Output monitoring refers to memory for one's previously completed actions. In the context of prospective memory (PM) (e.g., remembering to take medication), failures of output monitoring can result in repetitions and omissions of planned actions (e.g., over- or under-medication). To be successful in output monitoring paradigms, participants must flexibly control attention to detect PM cues as well as engage controlled retrieval of previous actions whenever a particular cue is encountered. The current study examined individual differences in output monitoring abilities in a group of younger adults differing in attention control (AC) and episodic memory (EM) abilities. The results showed that AC ability uniquely predicted successful cue detection on the first presentation, whereas EM ability uniquely predicted successful output monitoring on the second presentation. The current study highlights the importance of examining external correlates of PM abilities and contributes to the growing body of research on individual differences in PM.

Thermodynamic and dynamic contributions to future changes in summer precipitation over Northeast Asia and Korea: a multi-RCM study

NASA Astrophysics Data System (ADS)

Lee, Donghyun; Min, Seung-Ki; Jin, Jonghun; Lee, Ji-Woo; Cha, Dong-Hyun; Suh, Myoung-Seok; Ahn, Joong-Bae; Hong, Song-You; Kang, Hyun-Suk; Joh, Minsu

2017-12-01

This study examines future changes in precipitation over Northeast Asia and Korea using five regional climate model (RCM) simulations driven by single global climate model (GCM) under two representative concentration pathway (RCP) emission scenarios. Focusing on summer season (June-July-August) when heavy rains dominate in this region, future changes in precipitation and associated variables including temperature, moisture, and winds are analyzed by comparing future conditions (2071-2100) with a present climate (1981-2005). Physical mechanisms are examined by analyzing moisture flux convergence at 850 hPa level, which is found to have a close relationship to precipitation and by assessing contribution of thermodynamic effect (TH, moisture increase due to warming) and dynamic effect (DY, atmospheric circulation change) to changes in the moisture flux convergence. Overall background warming and moistening are projected over the Northeast Asia with a good inter-RCM agreement, indicating dominant influence of the driving GCM. Also, RCMs consistently project increases in the frequency of heavy rains and the intensification of extreme precipitation over South Korea. Analysis of moisture flux convergence reveals competing impacts between TH and DY. The TH effect contributes to the overall increases in mean precipitation over Northeast Asia and in extreme precipitation over South Korea, irrespective of models and scenarios. However, DY effect is found to induce local-scale precipitation decreases over the central part of the Korean Peninsula with large inter-RCM and inter-scenario differences. Composite analysis of daily anomaly synoptic patterns indicates that extreme precipitation events are mainly associated with the southwest to northeast evolution of large-scale low-pressure system in both present and future climates.

United States Medical Licensing Examination and American Board of Pediatrics Certification Examination Results: Does the Residency Program Contribute to Trainee Achievement.

PubMed

Welch, Thomas R; Olson, Brad G; Nelsen, Elizabeth; Beck Dallaghan, Gary L; Kennedy, Gloria A; Botash, Ann

2017-09-01

To determine whether training site or prior examinee performance on the US Medical Licensing Examination (USMLE) step 1 and step 2 might predict pass rates on the American Board of Pediatrics (ABP) certifying examination. Data from graduates of pediatric residency programs completing the ABP certifying examination between 2009 and 2013 were obtained. For each, results of the initial ABP certifying examination were obtained, as well as results on National Board of Medical Examiners (NBME) step 1 and step 2 examinations. Hierarchical linear modeling was used to nest first-time ABP results within training programs to isolate program contribution to ABP results while controlling for USMLE step 1 and step 2 scores. Stepwise linear regression was then used to determine which of these examinations was a better predictor of ABP results. A total of 1110 graduates of 15 programs had complete testing results and were subject to analysis. Mean ABP scores for these programs ranged from 186.13 to 214.32. The hierarchical linear model suggested that the interaction of step 1 and 2 scores predicted ABP performance (F[1,1007.70] = 6.44, P = .011). By conducting a multilevel model by training program, both USMLE step examinations predicted first-time ABP results (b = .002, t = 2.54, P = .011). Linear regression analyses indicated that step 2 results were a better predictor of ABP performance than step 1 or a combination of the two USMLE scores. Performance on the USMLE examinations, especially step 2, predicts performance on the ABP certifying examination. The contribution of training site to ABP performance was statistically significant, though contributed modestly to the effect compared with prior USMLE scores. Copyright © 2017 Elsevier Inc. All rights reserved.

Genetic variations in the serotonergic system contribute to amygdala volume in humans.

PubMed

Li, Jin; Chen, Chunhui; Wu, Karen; Zhang, Mingxia; Zhu, Bi; Chen, Chuansheng; Moyzis, Robert K; Dong, Qi

2015-01-01

The amygdala plays a critical role in emotion processing and psychiatric disorders associated with emotion dysfunction. Accumulating evidence suggests that amygdala structure is modulated by serotonin-related genes. However, there is a gap between the small contributions of single loci (less than 1%) and the reported 63-65% heritability of amygdala structure. To understand the "missing heritability," we systematically explored the contribution of serotonin genes on amygdala structure at the gene set level. The present study of 417 healthy Chinese volunteers examined 129 representative polymorphisms in genes from multiple biological mechanisms in the regulation of serotonin neurotransmission. A system-level approach using multiple regression analyses identified that nine SNPs collectively accounted for approximately 8% of the variance in amygdala volume. Permutation analyses showed that the probability of obtaining these findings by chance was low (p = 0.043, permuted for 1000 times). Findings showed that serotonin genes contribute moderately to individual differences in amygdala volume in a healthy Chinese sample. These results indicate that the system-level approach can help us to understand the genetic basis of a complex trait such as amygdala structure.

Origins of Effortful Control: Infant and Parent Contributions

PubMed Central

Gartstein, Maria A.; Bridgett, David J.; Young, Brandi N.; Panksepp, Jaak; Power, Thomas

2012-01-01

Effortful control (EC) refers to the ability to inhibit a dominant response to perform a subdominant one and has been shown as protective against a myriad of difficulties. Research examining precursors of EC has been limited to date, and in this study, infancy contributors to toddler EC were examined. Specifically, parent/family background variables (e.g., education, income), maternal temperament, perceived stress, and internalizing symptoms were addressed, along with infant temperament: positive affectivity/surgency (PAS), negative emotionality (NE), and regulatory capacity/orienting (RCO); and laboratory observation-based indicators of attention. Infant attention indexed by the latency to look away after initially orienting to the presented stimuli emerged as an important predictor of later EC, after accounting for other child and parent/family attributes, with shorter latencies predicting higher levels of EC. Mothers’ extraversion and parenting stress were the only parent/family attributes to significantly contribute to the prediction of toddler EC, with the former promoting and the latter undermining the development of EC. Infant temperament factors were also examined as a moderator of parent/family influences, with results indicating a significant interaction between mothers’ EC and infant RCO, so that children with greater RCO and mothers high in EC exhibited the highest EC scores in toddlerhood. PMID:26269695

Synthetic oligonucleotide probes deduced from amino acid sequence data. Theoretical and practical considerations.

PubMed

Lathe, R

1985-05-05

Synthetic probes deduced from amino acid sequence data are widely used to detect cognate coding sequences in libraries of cloned DNA segments. The redundancy of the genetic code dictates that a choice must be made between (1) a mixture of probes reflecting all codon combinations, and (2) a single longer "optimal" probe. The second strategy is examined in detail. The frequency of sequences matching a given probe by chance alone can be determined and also the frequency of sequences closely resembling the probe and contributing to the hybridization background. Gene banks cannot be treated as random associations of the four nucleotides, and probe sequences deduced from amino acid sequence data occur more often than predicted by chance alone. Probe lengths must be increased to confer the necessary specificity. Examination of hybrids formed between unique homologous probes and their cognate targets reveals that short stretches of perfect homology occurring by chance make a significant contribution to the hybridization background. Statistical methods for improving homology are examined, taking human coding sequences as an example, and considerations of codon utilization and dinucleotide frequencies yield an overall homology of greater than 82%. Recommendations for probe design and hybridization are presented, and the choice between using multiple probes reflecting all codon possibilities and a unique optimal probe is discussed.

Finding language in the matter of the brain: origins of the clinical aphasia examination.

PubMed

Roth, Heidi L

2002-12-01

The origins of the aphasia examination can be traced back to the 19th century when physicians and scientists began to understand how higher mental functions such as language could be localized in the brain. Paul Broca, Carl Wernicke, and Hughlings Jackson developed different models of brain function, and each contributed important insights to the study of aphasia. Broca's contributions were influenced by the fundamental question of whether higher mental function could be localized in the brain at all; Wernicke's contributions were influenced by an attempt to unite more mechanistic and physiological principles to a model of higher brain functions; and Jackson's contributions were influenced by British association psychology. In addition to reviewing the origins of the aphasia examination, this article reviews the historical context in which these contributors worked, the factors that affected the reception of their views, and the manner in which their views have affected the aphasia examination and understanding of aphasia today.

Disentangling the contribution of the paretic and non-paretic ankle to balance control in stroke patients.

PubMed

van Asseldonk, Edwin H F; Buurke, Jaap H; Bloem, Bastiaan R; Renzenbrink, Gerbert J; Nene, Anand V; van der Helm, Frans C T; van der Kooij, Herman

2006-10-01

During stroke recovery, restoration of the paretic ankle and compensation in the non-paretic ankle may contribute to improved balance maintenance. We examine a new approach to disentangle these recovery mechanisms by objectively quantifying the contribution of each ankle to balance maintenance. Eight chronic hemiparetic patients were included. Balance responses were elicited by continuous random platform movements. We measured body sway and ground reaction forces below each foot to calculate corrective ankle torques in each leg. These measurements yielded the Frequency Response Function (FRF) of the stabilizing mechanisms, which expresses the amount and timing of the generated corrective torque in response to sway at the specified frequencies. The FRFs were used to calculate the relative contribution of the paretic and non-paretic ankle to the total amount of generated corrective torque to correct sway. All patients showed a clear asymmetry in the balance contribution in favor of the non-paretic ankle. Paretic balance contribution was significantly smaller than the contribution of the paretic leg to weight bearing, and did not show a clear relation with the contribution to weight bearing. In contrast, a group of healthy subjects instructed to distribute their weight asymmetrically showed a one-on-one relation between the contribution to weight bearing and to balance. We conclude that the presented approach objectively quantifies the contribution of each ankle to balance maintenance. Application of this method in longitudinal surveys of balance rehabilitation makes it possible to disentangle the different recovery mechanisms. Such insights will be critical for the development and evaluation of rehabilitation strategies.

Contribution to the study of turbulence spectra

NASA Technical Reports Server (NTRS)

Dumas, R.

1979-01-01

An apparatus suitable for turbulence measurement between ranges of 1 to 5000 cps and from 6 to 16,000 cps was developed and is described. Turbulence spectra downstream of the grills were examined with reference to their general characteristics, their LF qualities, and the effects of periodic turbulence. Medium and HF are discussed. Turbulence spectra in the boundary layers are similarly examined, with reference to their fluctuations at right angles to the wall, and to lateral fluctuations. Turbulence spectra in a boundary layer with suction to the wall is discussed. Induced turbulence, and turbulence spectra at high Reynolds numbers. Calculations are presented relating to the effect of filtering on the value of the correlations in time and space.

Assessing Dependency using Self-report and Indirect Measures: Examining the Significance of Discrepancies

PubMed Central

Cogswell, Alex; Alloy, Lauren B.; Karpinski, Andrew; Grant, David

2011-01-01

The present study addressed convergence between self-report and indirect approaches to assessing dependency. The study was moderately successful in validating an implicit measure, which was found to be reliable, orthogonal to two self-report instruments, and predictive of external criteria. This study also examined discrepancies between scores on self-report and implicit measures, and has implications for their significance. The possibility that discrepancies themselves are pathological was not supported, although discrepancies were associated with particular personality profiles. Finally, this study offered additional evidence for the relation between dependency and depressive symptomatology, and identified implicit dependency as contributing unique variance in predicting past major depression. PMID:20552505

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

Sherrett, R.R.

This study investigates the relationship between NATO's decision to approach the problem created by the intermediate-range nuclear force superiority of the Soviets and the eventual signing of the INF Treaty by the United States and the Soviet Union. The concept presented is that by adopting the dual track decision, (a track for negotiations and a simultaneous track for fielding U.S. INF missiles), the United States was eventually able to conduct arms negotiations from a position of strength. In this way a significant contribution to the INF Treaty negotiation process was made. The study examines the position of each principal priormore » to the dual track decision, examines the role each played in that decision, and looks at the actions taken following the implementation of the dual track decision. The study also presents the nuclear background of NATO, and also examines the INF negotiations in some detail. The conclusions provide the current status of the INF Treaty implementation and outlines some lessons which could be applied to future negotiations of this type. Intermediate-range Nuclear Forces, INF Treaty, GLCM, PIT, Pershing II missiles, Ground Launched Cruise Missiles, Dual Track Decision, Nuclear arms negotiations.« less

Structureborne noise investigations of a twin engine aircraft

NASA Technical Reports Server (NTRS)

Garrelick, J. M.; Cole, J. E., III; Martini, K.

1986-01-01

The interior noise of aircraft powered by advanced turbo-prop concepts is likely to have nonnegligible contributions from structureborne paths, these paths being those involving propeller loads transmitted to the structures of the lifting surfaces. As a means of examining these paths, structural measurements have been performed on a small twin-engine aircraft, and in addition analytical models of the structure have been developed. In this paper results from both portions of this study are presented.

A historical note on illusory contours in shadow writing.

PubMed

Vezzani, Stefano; Marino, Barbara F M

2009-01-01

It is widely accepted that illusory contours have been first displayed and discussed by Schumann (1900, Zeitschrift für Psychologie und Physiologie der Sinnesorgane 23 1-32). Here we show that, before him, Jastrow (1899, Popular Science Monthly 54 299-312) produced illusory contours consisting of a shadow word. A brief history of shadow writing in psychological literature from Jastrow to Brunswik is presented, in which the contributions of Pillsbury, Warren, Koffka, and Benussi are examined.

Summary of gas bearing applications in the field of space electric power systems

NASA Technical Reports Server (NTRS)

Dunn, J. H.; Ream, L. W.

1972-01-01

The testing and evaluation of different bearing systems to be used in the turbine-alternator-compressor of a closed Brayton cycle electric power system are described. A specification of each bearing is presented along with the results of the evaluation and a comparison of the merits and limitations of each bearing. The contribution of improved bearings to the power supply reliability, potential life, and ability to accept shock and vibration is examined.

Presence and significance of chytrid fungus Batrachochytrium dendrobatidis and other amphibian pathogens at warm-water fish hatcheries in southeastern North America

USGS Publications Warehouse

Green, D. Earl; Dodd, C. Kenneth

2007-01-01

Our objective was to determine whether diseases known to have detrimental effects on amphibians (ranavirus, BD, mesomycetozoa, protozoa and helminths) are present in amphibian larvae living in warm-water fish hatcheries in the southeastern United States. We further examined hatchery records to assess the extent to which amphibian larvae have been transported throughout various regions and potentially contribute to spreading emerging infectious diseases. 

Fishery Science Teaching at the University Level. Report of a Workshop on University Curricula in Fishery Science (Paris, France, May 5-8, 1980). Unesco Reports in Marine Sciences No. 15.

ERIC Educational Resources Information Center

United Nations Educational, Scientific, and Cultural Organization, Paris (France). Div. of Marine Sciences.

As a result of the increasing human impacts upon global marine and aquatic resources, there is an increasing need to produce fishery science experts who can contribute to management, planning, and research. The Food and Agricultural Organization of the United Nations and Unesco cosponsored a workshop to examine the present status and problems in…

Sexual Assault Characteristics and Perceptions of Event-Related Distress.

PubMed

Blayney, Jessica A; Read, Jennifer P

2018-04-01

Sexual assault (SA) is a potent psychological stressor, linked to harmful mental health outcomes in both the short- and long-term. Specific assault characteristics can add to the toxicity of SA events. Although research has assessed characteristics of the assault itself (e.g., force, penetration), few studies have examined the larger socioenvironmental context in which SA takes place. This was the purpose of the present study. Young adults ( N = 220; 80% female; 54% current students) reported on their most recent SA during college. Cross-sectional associations were tested via structural equation modeling to determine the contributions of socioenvironmental context and assault characteristics in predicting event-related distress. Socioenvironmental context from the most recent assault included assault setting, intoxication at the time of the assault, perpetrator relationship, and prior consensual sexual experiences with the perpetrator. We also examined assault characteristics, including physical force and penetration. Participants reported how upsetting the most recent assault was (a) at the time it occurred and (b) currently. Results revealed differential patterns for socioenvironmental context and assault characteristics based on the timing of distress (past or present). Notably, many of the socioenvironmental factors showed associations with distress above and beyond the powerful effects of physical force and penetration. These findings have important implications for our understanding of the unique factors that contribute to and maintain psychological distress in sexually victimized young adults.

Infectious haematopoietic necrosis epidemic (2001 to 2003) in farmed Atlantic salmon Salmo salar in British Columbia.

PubMed

Saksida, S M

2006-10-27

I investigated a recent infectious haematopoietic necrosis disease (IHN) epidemic in farmed Atlantic salmon Salmo salar in British Columbia (BC), Canada. All companies with infected farms (n = 36) participated in the study. Over 12 million Atlantic salmon on infected farms died or were culled during the epidemic with cumulative mortality on the farms averaging 58%. The first reported case of IHN occurred in August 2001 and the last outbreak in June 2003. Outbreaks on the farms lasted between 20 and 22 wk. Genetic sequencing by other researchers, revealed that 2 different IHN isolates contributed to this epidemic, one linked to all cases in 4 areas, the other associated with all cases in a fifth area. Spatial and temporal patterns of the farm outbreaks were examined to determine possible methods of spread between the farms. Evidence presented herein appears to show that farming practices themselves contributed significantly to the spread between farms both within and between areas. Natural waterborne transmission may have played a role in the spread of the virus between farms located in close proximity to each other. The data collected from this epidemic are compared with reports which examined the first reported epidemic in Atlantic salmon in BC (1992 to 1996). Evidence is presented for the hypothesis that wild fish species may have been the source of introduction of the virus into the farmed Atlantic salmon population.

Contributions of two types of calcium channels to synaptic transmission and plasticity.

PubMed

Edmonds, B; Klein, M; Dale, N; Kandel, E R

1990-11-23

In Aplysia sensory and motor neurons in culture, the contributions of the major classes of calcium current can be selectively examined while transmitter release and its modulation are examined. A slowly inactivating, dihydropyridine-sensitive calcium current does not contribute either to normal synaptic transmission or to any of three different forms of plasticity: presynaptic inhibition, homosynaptic depression, and presynaptic facilitation. This current does contribute, however, to a fourth form of plasticity--modulation of transmitter release by tonic depolarization of the sensory neuron. By contrast, a second calcium current, which is rapidly inactivating and dihydropyridine-insensitive, contributes to release elicited by the transient depolarization of an action potential and to the other three forms of plasticity.

Equity theory and fair inequality: a neuroeconomic study.

PubMed

Cappelen, Alexander W; Eichele, Tom; Hugdahl, Kenneth; Specht, Karsten; Sørensen, Erik Ø; Tungodden, Bertil

2014-10-28

The present paper reports results from, to our knowledge, the first study designed to examine the neuronal responses to income inequality in situations in which individuals have made different contributions in terms of work effort. We conducted an experiment that included a prescanning phase in which the participants earned money by working, and a neuronal scanning phase in which we examined how the brain responded when the participants evaluated different distributions of their earnings. We provide causal evidence for the relative contribution of work effort being crucial for understanding the hemodynamic response in the brain to inequality. We found a significant hemodynamic response in the striatum to deviations from the distribution of income that was proportional to work effort, but found no effect of deviations from the equal distribution of income. We also observed a striking correlation between the hemodynamic response in the striatum and the self-reported evaluation of the income distributions. Our results provide, to our knowledge, the first set of neuronal evidence for equity theory and suggest that people distinguish between fair and unfair inequalities.

Isolation by environment.

PubMed

Wang, Ian J; Bradburd, Gideon S

2014-12-01

The interactions between organisms and their environments can shape distributions of spatial genetic variation, resulting in patterns of isolation by environment (IBE) in which genetic and environmental distances are positively correlated, independent of geographic distance. IBE represents one of the most important patterns that results from the ways in which landscape heterogeneity influences gene flow and population connectivity, but it has only recently been examined in studies of ecological and landscape genetics. Nevertheless, the study of IBE presents valuable opportunities to investigate how spatial heterogeneity in ecological processes, agents of selection and environmental variables contributes to genetic divergence in nature. New and increasingly sophisticated studies of IBE in natural systems are poised to make significant contributions to our understanding of the role of ecology in genetic divergence and of modes of differentiation both within and between species. Here, we describe the underlying ecological processes that can generate patterns of IBE, examine its implications for a wide variety of disciplines and outline several areas of future research that can answer pressing questions about the ecological basis of genetic diversity. © 2014 John Wiley & Sons Ltd.

Reforming automatism and insanity: Neuroscience and claims of lack of capacity for control.

PubMed

Claydon, Lisa

2015-07-01

This paper examines some of the issues raised by the current criminal law defence of automatism and the related defence of insane automatism, and considers what neuroscience may contribute to the reform discussion. It also considers some of the claims made in relation to the impact of neuroimaging in the courtroom. It examines an American medical case report in which an individual's criminal behaviour is linked to a brain tumour, and considers how the reformed law as presented in the Law Commission for England and Wales' Discussion Paper might treat such claims. It concludes by examining what assistance the law may gain from a deeper understanding of how a sense of agency emerges from brain states, and the implications of this scientific knowledge for the reform of the law. © The Author(s) 2015.

A contribution to the discussion concerning the variability of the third peroneal muscle: an anatomical analysis on the basis of foetal material.

PubMed

Domagała, Z; Gworys, B; Kreczyńska, B; Mogbel, S

2006-11-01

The aim of the work was to make a systemic study of the variability of the human musculus peroneus tertius during the foetal period. Examination was made of 193 foetuses of ages ranging from 84 to 256 days after conception. The results obtained indicated that the musculus peroneus tertius was present in 83.16% of the human foetuses studied and that its intrauterine development was progressive and almost proportional. Previous studies have not revealed dimorphic or bilateral differences with respect to any of the features examined. On the basis of the examinations and bibliographical data a uniform typology of the musculus peroneus tertius variants was created and three final types were distinguished: the pithecogenic (44% cases), eugenic (34% cases) and progenic (22% cases).

Isolating Age-Group Differences in Working Memory Load-Related Neural Activity: Assessing the Contribution of Working Memory Capacity Using a Partial-Trial fMRI Method

PubMed Central

Bennett, Ilana J.; Rivera, Hannah G.; Rypma, Bart

2013-01-01

Previous studies examining age-group differences in working memory load-related neural activity have yielded mixed results. When present, age-group differences in working memory capacity are frequently proposed to underlie these neural effects. However, direct relationships between working memory capacity and working memory load-related activity have only been observed in younger adults. These relationships remain untested in healthy aging. Therefore, the present study examined patterns of working memory load-related activity in 22 younger and 20 older adults and assessed the contribution of working memory capacity to these load-related effects. Participants performed a partial-trial delayed response item recognition task during functional magnetic resonance imaging. In this task, participants encoded either 2 or 6 letters, maintained them during a delay, and then indicated whether a probe was present in the memory set. Behavioral results revealed faster and more accurate responses to load 2 versus 6, with age-group differences in this load condition effect for the accuracy measure. Neuroimaging results revealed one region (medial superior frontal gyrus) that showed age-group differences in load-related activity during the retrieval period, with less (greater) neural activity for the low versus high load condition in younger (older) adults. Furthermore, for older adults, load-related activity did not vary as a function of working memory capacity. Thus, working memory-related activity varies with healthy aging, but these patterns are not due solely to working memory capacity. Neurocognitive aging theories that feature capacity will need to account for these results. PMID:23357076

Position of nuclear medicine techniques in the diagnostic work-up of neuroendocrine tumors.

PubMed

Bombardieri, E; Seregni, E; Villano, C; Chiti, A; Bajetta, E

2004-06-01

In recent years nuclear medicine has contributed to the impressive development of the knowledge of neuroendocrine tumors in terms of biology (receptor scintigraphy), pharmacology (development of new tracers), and therapy (radiometabolic therapy). At present, it is impossible to plan the management of a patient affected by a neuroendocrine tumor without performing nuclear medicine examinations. The contribution of nuclear medicine had affected and improved the management of these patients by offering various important options that are part of the modern diagnosis and treatment protocols. The clinical experience and the literature confirm that, among the wide variety of tracers and nuclear medicine modalities available today, metaiodobenzylguanidine (MIBG) and DTPA-D-Phe-octreotide (pentetreotide) are the radiopharmaceuticals of current clinical use. Several new somatostatin analogues are under investigation. Positron emission tomography (PET) supplies a range of labelled compounds to be used for the visualization of tumor biochemistry. In addition to the first routinely used PET tracer in oncology, 18F-labelled deoxyglucose (FDG), a number of radiopharmaceuticals based on different precursors such as fluorodopamine and 5-hydroxytryptophan (5-HTP) are going to gain a clinical role. Of course, the diagnosis of neuroendocrine tumors has to be based on integrated information derived from different examinations including nuclear medicine studies. The clinical presentation of neuroendocrine tumors is highly variable: sometimes they manifest typical or atypical symptoms but they may also be detected by chance during an X-ray or ultrasound examination carried out for other reasons. At disease presentation nuclear medicine modalities are sometimes able to direct physicians towards the clinical diagnosis thanks to the specificity of their imaging mechanisms. They also play a role in disease staging and restaging, patient follow-up and treatment monitoring. In addition, the biological characterisation of neuroendocrine tissues (receptor status, glucose metabolism, differentiation, etc.) allows the interpretation of radiopharmaceutical uptake as a prognostic parameter and sometimes as a predictor of the response to treatment.

Ultra-processed foods, protein leverage and energy intake in the USA.

PubMed

Martínez Steele, Euridice; Raubenheimer, David; Simpson, Stephen J; Baraldi, Larissa Galastri; Monteiro, Carlos A

2018-01-01

Experimental studies have shown that human macronutrient regulation minimizes variation in absolute protein intake and consequently energy intake varies passively with dietary protein density ('protein leverage'). According to the 'protein leverage hypothesis' (PLH), protein leverage interacts with a reduction in dietary protein density to drive energy overconsumption and obesity. Worldwide increase in consumption of ultra-processed foods (UPF) has been hypothesized to be an important determinant of dietary protein dilution, and consequently an ecological driving force of energy overconsumption and the obesity pandemic. The present study examined the relationships between dietary contribution of UPF, dietary proportional protein content and the absolute intakes of protein and energy. National representative cross-sectional study. National Health and Nutrition Examination Survey 2009-2010. Participants (n 9042) aged ≥2 years with at least one day of 24 h dietary recall data. We found a strong inverse relationship between consumption of UPF and dietary protein density, with mean protein content dropping from 18·2 to 13·3 % between the lowest and highest quintiles of dietary contribution of UPF. Consistent with the PLH, increase in the dietary contribution of UPF (previously shown to be inversely associated with protein density) was also associated with a rise in total energy intake, while absolute protein intake remained relatively constant. The protein-diluting effect of UPF might be one mechanism accounting for their association with excess energy intake. Reducing UPF contribution in the US diet may be an effective way to increase its dietary protein concentration and prevent excessive energy intake.

Is physical examination required before prescribing hormones to patients with gender dysphoria?

PubMed

Vardi, Yoram; Wylie, Kevan R; Moser, Charles; Assalian, Pierre; Dean, John; Asscheman, Henk

2008-01-01

A genital examination can have psychologic effects on a patient, particularly when the source of their sexual medicine complaint is a body part. How necessary is a physical exam before prescribing hormones in cases of gender dsyphoria? Five people with expertise and/or interest in the area of gender dysphoria and endocrinology were asked to contribute their opinions. To provide food for thought, discussion, and possible further research in a poorly discussed area of sexual medicine. Of the five experts writing on the topic, one believes that a physical examination should always be performed before prescribing hormones for gender dysphoria, one believes it is not a prerequisite, and three believe a physical examination is recommended, but is not necessary in cases where the patient objects despite an explanation of the purpose of the exam. As long as this was documented, it would not present a medicolegal problem. It is not clear whether or not a physical examination must be performed on all gender dsyphoric patients before prescribing hormones; however, an examination would be helpful in revealing a significant health management issue.

Race, Racism, and Darwinism

ERIC Educational Resources Information Center

Jeynes, William H.

2011-01-01

This article examines the views of Darwinist evolution on issues regarding race and how this contributed to the spread of racism in the United States. The writings of Charles Darwin and a myriad of his followers are examined, including Herbert Spencer, Francis Galton, and others. The influence of Darwinism in contributing to the growth of…

Sport Sciences and the Promise of Phenomenology: Philosophy, Method, and Insight.

ERIC Educational Resources Information Center

Kerry, Daniel S.; Armour, Kathleen M.

2000-01-01

Examines how phenomenology might make a more significant contribution to knowledge and understanding within sport-related research. The paper discusses the philosophical roots of phenomenology; highlights the key contributions of and differences between Husserl and Heidegger; examines phenomenology as philosophy and phenomenology as method; and…

Enlightenment through Engagement? The Potential Contribution of Greater Engagement between Researchers and Practitioners

ERIC Educational Resources Information Center

Jones, Rob

2017-01-01

This paper examines the potential contribution of engagement between accounting education researchers and practitioners. Drawing from a case where researchers and practitioners worked together to improve student employability, the paper examines researcher:practitioner engagement from both sides by exploring the potential benefits of participating…

On coffee talk and break-room chatter: perceptions of women who gossip in the workplace.

PubMed

Farley, Sally D; Timme, Diane R; Hart, Jason W

2010-01-01

The present study examined perceptions of female gossipers in the workplace. Male and female participants (N=129) were asked to think of a woman who either frequently or rarely contributed negative information about other people during conversation. Participants then completed ratings on the target using the six dimensions of the FIRO-B. As predicted, high gossipers were perceived as having a greater need to exert control of others, but less need for others to control them, than low gossipers. Higher gossipers were also perceived as less emotionally warm than low gossipers. The implications of these findings for gossip research are presented.

Notes on the geology of northeastern New Mexico

USGS Publications Warehouse

St. John, O.

1876-01-01

During the season of 1869, in the progress of his extended reconnaissance of the Rocky Mountains, Dr. Hayden visited this region, from whom we have authentic account of its general geological features, and their intimate relation to those prevailing in other and similar districts to the north and south. A few months' residence in this part of the country in 1874-'75* afforded the writer opportunity to become somewhat familiar with its geological features; and the purpose of the present communication is to present such facts as may tend to contribute something toward a similar knowledge of remote and perhaps hitherto rarely-visited localities, and their connection with already examined districts.

Personal sound zone reproduction with room reflections

NASA Astrophysics Data System (ADS)

Olik, Marek

Loudspeaker-based sound systems, capable of a convincing reproduction of different audio streams to listeners in the same acoustic enclosure, are a convenient alternative to headphones. Such systems aim to generate "sound zones" in which target sound programmes are to be reproduced with minimum interference from any alternative programmes. This can be achieved with appropriate filtering of the source (loudspeaker) signals, so that the target sound's energy is directed to the chosen zone while being attenuated elsewhere. The existing methods are unable to produce the required sound energy ratio (acoustic contrast) between the zones with a small number of sources when strong room reflections are present. Optimization of parameters is therefore required for systems with practical limitations to improve their performance in reflective acoustic environments. One important parameter is positioning of sources with respect to the zones and room boundaries. The first contribution of this thesis is a comparison of the key sound zoning methods implemented on compact and distributed geometrical source arrangements. The study presents previously unpublished detailed evaluation and ranking of such arrangements for systems with a limited number of sources in a reflective acoustic environment similar to a domestic room. Motivated by the requirement to investigate the relationship between source positioning and performance in detail, the central contribution of this thesis is a study on optimizing source arrangements when strong individual room reflections occur. Small sound zone systems are studied analytically and numerically to reveal relationships between the geometry of source arrays and performance in terms of acoustic contrast and array effort (related to system efficiency). Three novel source position optimization techniques are proposed to increase the contrast, and geometrical means of reducing the effort are determined. Contrary to previously published case studies, this work presents a systematic examination of the key problem of first order reflections and proposes general optimization techniques, thus forming an important contribution. The remaining contribution considers evaluation and comparison of the proposed techniques with two alternative approaches to sound zone generation under reflective conditions: acoustic contrast control (ACC) combined with anechoic source optimization and sound power minimization (SPM). The study provides a ranking of the examined approaches which could serve as a guideline for method selection for rooms with strong individual reflections.

Examining the incremental contribution of metacognitive beliefs beyond content-specific beliefs in relation to posttraumatic stress in a community sample.

PubMed

Fergus, Thomas A; Bardeen, Joseph R

2017-11-01

Cognitive-behavioral models of posttraumatic stress disorder (PTSD) propose that the content of one's thoughts, including negative beliefs about the self, others, and world, play a fundamental role in our understanding and treatment of PTSD. Metacognitive theory suggests that metacognitive beliefs (i.e., beliefs about thinking), rather than content-specific beliefs, underlie PTSD. The present study provided the first known examination of the incremental contribution of metacognitive beliefs and trauma-related cognitions in relation to posttraumatic stress. Community adults recruited through an online crowdsourcing website who reported experiencing a criterion A traumatic event (N = 299) completed self-report measures of the study variables. Results from multiple linear regression analyses indicated that metacognitive beliefs of the uncontrollability and danger of thinking shared associations with each posttraumatic stress symptom cluster after accounting for the effects of content-specific beliefs and other covariates. The individual content-specific beliefs did not consistently share associations with posttraumatic stress symptoms in the regression analyses. The contribution of the individual content-specific beliefs to posttraumatic stress symptoms was consistently attenuated or rendered nonsignificant after accounting for metacognitive beliefs. These results are consistent with metacognitive theory in suggesting that metacognitive beliefs may be more important than trauma-related thought content in relation to posttraumatic stress. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

Progressive posterior cortical dysfunction

PubMed Central

Porto, Fábio Henrique de Gobbi; Machado, Gislaine Cristina Lopes; Morillo, Lilian Schafirovits; Brucki, Sonia Maria Dozzi

2010-01-01

Progressive posterior cortical dysfunction (PPCD) is an insidious syndrome characterized by prominent disorders of higher visual processing. It affects both dorsal (occipito-parietal) and ventral (occipito-temporal) pathways, disturbing visuospatial processing and visual recognition, respectively. We report a case of a 67-year-old woman presenting with progressive impairment of visual functions. Neurologic examination showed agraphia, alexia, hemispatial neglect (left side visual extinction), complete Balint’s syndrome and visual agnosia. Magnetic resonance imaging showed circumscribed atrophy involving the bilateral parieto-occipital regions, slightly more predominant to the right. Our aim was to describe a case of this syndrome, to present a video showing the main abnormalities, and to discuss this unusual presentation of dementia. We believe this article can contribute by improving the recognition of PPCD. PMID:29213665

Anorexia nervosa and parental bonding: the contribution of parent-grandparent relationships to eating disorder psychopathology.

PubMed

Canetti, Laura; Kanyas, Kyra; Lerer, Bernard; Latzer, Yael; Bachar, Eytan

2008-06-01

The present study adopted an intergenerational approach in examining the association between parental bonding and anorexia nervosa. Forty-three anorexic participants and 33 nonclinical comparison participants completed eating disorder questionnaires and the Parental Bonding Instrument (PBI). The participant's parents also completed the PBI. The anorexic participants perceived both parents as less caring and fathers as more controlling than nonclinical participants. Among anorexic participants, mother control and father care were associated with symptom severity. Intergenerational effects were present. Among anorexic participants, maternal grandmother care was associated with eating disorder psychopathology. The present findings suggest that parental characteristics of grandparents might play a role in the development of eating disorders in granddaughters. (c) 2008 Wiley Periodicals, Inc.

Role of Echocardiograghy in Treating a Case of Double Chamber Right Ventricle with Delayed Presentation

PubMed Central

Barik, Ramachandra

2017-01-01

The clinical diagnosis of double chamber right ventricle (DCRV) is not straightforward. Clinical history, clinical examination, 12-lead electrocardiogram, chest X-ray, and Echocardiography (echo) contribute to morphological diagnosis. Cardiac catheterization is essential for hemodynamic evaluation. A thorough presurgical workup helps the cardiac surgeon to choose the appropriate surgical approach and timing of surgery in an individual case. We present a case of a DCRV who presented to us in the fifth decade of life. Echo confirmed the morphological diagnosis and cardiac catheterization complemented the exact pull back gradient across the obstruction in the right ventricle. This patient was suggested muscle bundle resection and ventricular septal defect closure using right atrial approach. PMID:28465983

A Meta-Analysis of the Corpus Callosum in Autism

PubMed Central

Frazier, Thomas W.; Hardan, Antonio Y.

2009-01-01

Background Several previous MRI studies have reported reductions in corpus callosum (CC) total area and CC regions in individuals with autism. However, studies have differed concerning the presence, magnitude, and/or region contributing to CC reductions. The primary aim of the present study was to determine the significance and magnitude of reduction in CC total and regional area measures in patients with autism. Method PubMed and PsycInfo databases were searched to identify MRI studies examining corpus callosum area in autism. Ten studies contributed data from 253 patients with autism (Mean age=14.58, SD=6.00) and 250 healthy controls (M age=14.47, sd=5.31). Of these ten studies, eight reported area measurements for corpus callosum regions (anterior, mid/body, and posterior), with six studies reported area for Witelson subdivisions. Meta-analytic procedures were used to quantify autism versus healthy control differences in total and region CC area measurements. Demographics and study characteristics were examined as moderators of total CC area. Results Total CC area was reduced in autism and the magnitude of the reduction was medium (Weighted Mean d=.48, 95% CI=.30-.66). All regions showed reductions in size with the magnitude of the effect decreasing caudally (anterior d=.49, mid/body d=.43, posterior d=.37). Witelson sub-division 3 (rostral body) showed the largest effect, indicating greatest reduction in the region containing pre-/supplementary motor neurons. Conclusions CC reductions are present in autism and support the aberrant connectivity hypothesis. Future diffusion tensor imaging studies examining specific fiber tracts connecting the hemispheres are needed to identify the cortical regions most affected by CC reductions. PMID:19748080

Distinguishing familiarity from fluency for the compound word pair effect in associative recognition.

PubMed

Ahmad, Fahad N; Hockley, William E

2017-09-01

We examined whether processing fluency contributes to associative recognition of unitized pre-experimental associations. In Experiments 1A and 1B, we minimized perceptual fluency by presenting each word of pairs on separate screens at both study and test, yet the compound word (CW) effect (i.e., hit and false-alarm rates greater for CW pairs with no difference in discrimination) did not reduce. In Experiments 2A and 2B, conceptual fluency was examined by comparing transparent (e.g., hand bag) and opaque (e.g., rag time) CW pairs in lexical decision and associative recognition tasks. Lexical decision was faster for transparent CWs (Experiment 2A) but in associative recognition, the CW effect did not differ by CW pair type (Experiment 2B). In Experiments 3A and 3B, we examined whether priming that increases processing fluency would influence the CW effect. In Experiment 3A, CW and non-compound word pairs were preceded with matched and mismatched primes at test in an associative recognition task. In Experiment 3B, only transparent and opaque CW pairs were presented. Results showed that presenting matched versus mismatched primes at test did not influence the CW effect. The CW effect in yes-no associative recognition is due to reliance on enhanced familiarity of unitized CW pairs.

Observability of radiation-pressure shot noise in optomechanical systems

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

Boerkje, K.; Nunnenkamp, A.; Zwickl, B. M.

2010-07-15

We present a theoretical study of an experiment designed to detect radiation-pressure shot noise in an optomechanical system. Our model consists of a coherently driven optical cavity mode that is coupled to a mechanical oscillator. We examine the cross-correlation between two quadratures of the output field from the cavity. We determine under which circumstances radiation-pressure shot noise can be detected by a measurement of this cross-correlation. This is done in the general case of nonzero detuning between the frequency of the drive and the cavity resonance frequency. We study the qualitative features of the different contributions to the cross-correlator andmore » provide quantitative figures of merit for the relative importance of the radiation-pressure shot noise contribution to other contributions. We also propose a modified setup of this experiment relevant to the 'membrane-in-the-middle' geometry, which potentially can avoid the problems of static bistability and classical noise in the drive.« less

Galactic X-ray emission from pulsars

NASA Technical Reports Server (NTRS)

Harding, A. K.

1981-01-01

The contribution of pulsars to the gamma-ray flux from the galactic plane is examined using data from the most recent pulsar surveys. It is assumed that pulsar gamma-rays are produced by curvature radiation from relativistic particles above the polar cap and attenuated by pair production in the strong magnetic and electric fields. Assuming that all pulsars produce gamma-rays in this way, their luminosities can be predicted as a function of period and magnetic field strength. Using the distribution of pulsars in the galaxy as determined from data on 328 pulsars detected in three surveys, the local gamma-ray production spectrum, the longitude profile, and the latitude profile of pulsar gamma-ray flux are calculated. The largest sources of uncertainty in the size of the pulsar contribution are the value of the mean interstellar electron density, the turnover in the pulsar radio luminosity function, and the average pulsar magnetic field strength. A present estimate is that pulsars contribute from 15 to 20 % of the total flux of gamma-rays from the galactic plane.

Ambitions fulfilled? The effects of intrinsic and extrinsic goal attainment on older adults' ego-integrity and death attitudes.

PubMed

Van Hiel, Alain; Vansteenkiste, Maarten

2009-01-01

The present research examined the effects of intrinsic and extrinsic goal attainment on older adults' ego-integrity, psychological well-being, and death attitudes. Hypotheses were derived from Self-Determination Theory (SDT; Deci & Ryan, 2000; Vansteenkiste, Ryan, & Deci, in press). Study 1 (N = 202, Mean age = 68.2 years) indicated that, after controlling for extrinsic goal attainment, intrinsic goal attainment contributed positively to subjective well-being and ego-integrity and negatively to despair, whereas extrinsic goal attainment was unrelated to psychological health and contributed positively to despair. Study 2 (N = 213, Mean age = 75.2 years) replicated and extended these results, showing that intrinsic goal attainment contributed to the acceptance of one's own death, lower ill-being, and less death anxiety, whereas extrinsic goal attainment was negatively associated with death acceptance. It is argued that the attainment of intrinsic goals is related to better psychological health, because intrinsic goals are more conducive to the satisfaction of basic psychological needs.

Goal clarity and financial planning activities as determinants of retirement savings contributions.

PubMed

Stawski, Robert S; Hershey, Douglas A; Jacobs-Lawson, Joy M

2007-01-01

Retirement counselors, financial service professionals, and retirement intervention specialists routinely emphasize the importance of developing clear goals for the future; however, few empirical studies have focused on the benefits of retirement goal setting. In the present study, the extent to which goal clarity and financial planning activities predict retirement savings practices was examined among 100 working adults. Path analysis techniques were used to test two competing models, both of which were designed to predict savings contributions. Findings provide support for the model in which retirement goal clarity is a significant predictor of planning practices, and planning, in turn, predicts savings tendencies. Two demographic variables-income and age-were also revealed to be important elements of the model, with income accounting for roughly half of the explained variance in savings contributions. The results of this study have implications for the development of age-based models of planning, as well as implications for retirement counselors and financial planners who advise workers on long-term saving strategies.

Understanding the Microstructure and Macrostructure of Passages Among Chinese Elementary School Children.

PubMed

Lo, Lap-Yan; Ho, Connie Suk-Han; Wong, Yau-Kai; Chan, David Wai-Ock; Chung, Kevin Kien-Hoa

2016-12-01

Understanding the microstructure and macrostructure of passages is important for reading comprehension. What cognitive-linguistic skills may contribute to understanding these two levels of structures has rarely been investigated. The present study examined whether some word-level and text-level cognitive-linguistic skills may contribute differently to the understanding of microstructure and macrostructure respectively. Seventy-nine Chinese elementary school children were tested on some cognitive-linguistic skills and literacy skills. It was found that word reading fluency and syntactic skills predicted significantly the understanding of microstructure of passages after controlling for age and IQ; while morphological awareness, syntactic skills, and discourse skills contributed significantly to understanding of macrostructure. These findings suggest that syntactic skills facilitate children's access of meaning from grammatical structures, which is a fundamental process in gaining text meaning at any level of reading comprehension. Discourse skills also allow readers to understand the cohesive interlinks within and between sentences and is important for a macro level of passage understanding.

Obstructive sleep apnea syndrome in Prader-Willi Syndrome: an unrecognized and untreated cause of cognitive and behavioral deficits?

PubMed

Camfferman, Danny; Lushington, Kurt; O'Donoghue, Fergal; Doug McEvoy, R

2006-09-01

Prader-Willi Syndrome (PWS) is a rare genetic disorder characterized by a range of physical, psychological, and physiological abnormalities. It is also distinguished by the high prevalence of obstructive sleep apnea syndrome (OSAS), i.e., repetitive upper airway collapse during sleep resulting in hypoxia and sleep fragmentation. In non-PWS populations, OSAS is associated with a range of neurocognitive and psychosocial deficits. Importantly, these deficits are at least partly reversible following treatment. Given the findings in non-PWS populations, it is possible that OSAS may contribute to neurocognitive and psychosocial deficits in PWS. The present review examines this possibility. While acknowledging a primary contribution from the primary genetic abnormality to central neural dysfunction in PWS, we conclude that OSAS may be an important secondary contributing factor to reduced neurocognitive and psychosocial performance. Treatment of OSAS may have potential benefits in improving neurocognitive performance and behavior in PWS, but this awaits confirmatory investigation.

Decision processes in choice overload: a product of delay and probability discounting?

PubMed

Kaplan, Brent A; Reed, Derek D

2013-07-01

Recent research in the behavioral decision making literature has demonstrated that humans hyperbolically discount the subjective value of options as the number of options increases (Reed et al., 2012). These findings provide a cognitive-behavioral synthesis of the "choice overload" phenomenon, also known as the "paradox of choice." Specifically, these findings suggest that temporal discounting may serve as the underlying process contributing to this effect. As an extension, this study examined the effects of reward magnitude sizes had on rates temporal and options discounting. This manipulation was conducted to determine what role temporal discounting plays in discounting of options. The present results suggest that temporal discounting may not be the only process contributing to the choice overload effect. Copyright © 2013 Elsevier B.V. All rights reserved.

What Contributes to Excessive Diet Soda Intake in Eating Disorders: Appetitive Drive, Weight Concerns, or Both?

PubMed Central

Brown, Tiffany A.; Keel, Pamela K.

2013-01-01

Excessive diet soda intake is common in eating disorders. The present study examined factors contributing to excessive intake in a sample of individuals with lifetime eating disorders based on proposed DSM-5 criteria (n=240) and non-eating disorder controls (n=157). Individuals with eating disorders, particularly bulimia nervosa, consumed more diet soda than controls. Eating disorder symptoms that reflect increased appetitive drive or increased weight concerns were associated with increased diet soda intake. Increased weight concerns were associated with increased diet soda intake when levels of appetitive drive were high, but not when they were low. Results highlight the importance of monitoring diet soda intake in individuals with eating disorders and may have implications for the maintenance of dysregulated taste reward processing in BN. PMID:23600556

The role of parental perceptions of tic frequency and intensity in predicting tic-related functional impairment in youth with chronic tic disorders.

PubMed

Espil, Flint M; Capriotti, Matthew R; Conelea, Christine A; Woods, Douglas W

2014-12-01

Tic severity is composed of several dimensions. Tic frequency and intensity are two such dimensions, but little empirical data exist regarding their relative contributions to functional impairment in those with chronic tic disorders (CTD). The present study examined the relative contributions of these dimensions in predicting tic-related impairment across several psychosocial domains. Using data collected from parents of youth with CTD, multivariate regression analyses revealed that both tic frequency and intensity predicted tic-related impairment in several areas; including family and peer relationships, school interference, and social endeavors, even when controlling for the presence of comorbid anxiety symptoms and Attention Deficit Hyperactivity Disorder diagnostic status. Results showed that tic intensity predicted more variance across more domains than tic frequency.

How Does Mentoring Contribute to Gen Y Employees’ Intention to Stay? An Indian Perspective

PubMed Central

Naim, Mohammad Faraz; Lenka, Usha

2017-01-01

The present study is aimed at investigating the impact of mentoring on intention to stay of Gen Y employees working in Indian IT industry. Also, the mediating roles of perceived organization support and affective commitment are examined. Primary data were collected from a sample of 314 Gen Y employees (born between 1980-2000) from IT industry in Delhi, NCR India. Data analysis was carried out using AMOS and SPSS to test sequential mediation. Findings reveal that mentoring has a direct influence on intention to stay of Gen Y employees and perceived organization support and affective commitment sequentially mediate the relationship between the two. This study contributes to the literature on mentoring, perceived organization support, affective commitment, and intention to stay. PMID:28580029

Forecasting obesity prevalence in Korean adults for the years 2020 and 2030 by the analysis of contributing factors.

PubMed

Baik, Inkyung

2018-06-01

There are few studies that forecast the future prevalence of obesity based on the predicted prevalence model including contributing factors. The present study aimed to identify factors associated with obesity and construct forecasting models including significant contributing factors to estimate the 2020 and 2030 prevalence of obesity and abdominal obesity. Panel data from the Korea National Health and Nutrition Examination Survey and national statistics from the Korean Statistical Information Service were used for the analysis. The study subjects were 17,685 male and 24,899 female adults aged 19 years or older. The outcome variables were the prevalence of obesity (body mass index ≥ 25 kg/m 2 ) and abdominal obesity (waist circumference ≥ 90 cm for men and ≥ 85 cm for women). Stepwise logistic regression analysis was used to select significant variables from potential exposures. The survey year, age, marital status, job status, income status, smoking, alcohol consumption, sleep duration, psychological factors, dietary intake, and fertility rate were found to contribute to the prevalence of obesity and abdominal obesity. Based on the forecasting models including these variables, the 2020 and 2030 estimates for obesity prevalence were 47% and 62% for men and 32% and 37% for women, respectively. The present study suggested an increased prevalence of obesity and abdominal obesity in 2020 and 2030. Lifestyle factors were found to be significantly associated with the increasing trend in obesity prevalence and, therefore, they may require modification to prevent the rising trend.

Reference as an Interactive Achievement: Sequential and Longitudinal Analyses of Labeling Interactions in Shared Book Reading and Free Play

PubMed Central

Heller, Vivien; Rohlfing, Katharina J.

2017-01-01

The present study examines how young children and their caregivers establish reference by jointly developing stable patterns of bodily, perceptual, and interactive coordination. Our longitudinal investigation focuses on two mother–child dyads engaged in picture-book reading and play. The dyads were videotaped at home once every 6 weeks while the children aged from 9 to 24 months. Inspired by conversation analysis and multimodal analysis, our developmental approach builds on the insight that the situated and embodied production of reference is fundamentally an interactive achievement. To examine the acquisition of reference, we developed a descriptive instrument that takes account of not only the dyad's joint accomplishment but also each participant's contributions to it. The instrument is based on the sequential reconstruction of the jobs that both participants have to accomplish jointly in order to achieve reference: establishing visual perception as a relevant resource, constituting a domain of scrutiny, locating a target, and construing the (meaning of the) referent. Methodologically, these jobs serve as a tertium comparationis for the longitudinal comparison of both the adult's as well as the child's contributions to establishing reference. We used this instrument to examine (1) what bodily and verbal resources the participants employed, and (2) how their contributions to accomplishing the jobs changed over time. Findings showed that the acquisition of reference was closely related to the child's increasing ability to recognize, fulfill, and set up conditional relevancies. We conclude that the adult's dynamic and contextualized use of conditional relevancies, recipient design, and observability is a crucial driving force in the acquisition of reference. PMID:28261122

[Asymptomatic subcapsular splenic hematoma in infectious mononucleosis (Pfeiffer disease)].

PubMed

Stahlknecht, T; Majewski, A

1986-09-01

Splenic rupture in infectious mononucleosis (Pfeiffer disease, or glandular fever) is a rare but life-threatening complication. The exact mechanism of rupture of the spleen is unknown to date. A case of a spontaneous, asymptomatic, subcapsular haematoma of the spleen of an eighteen-year old female with infectious mononucleosis is presented with special reference to the echographic findings. A complete remission without any complication was obtained. The contribution of the sonographic examination and follow-up in the diagnosis of infectious mononucleosis is emphasised.

DRR is a teenager

NASA Astrophysics Data System (ADS)

Nagy, George

2008-01-01

The fifteenth anniversary of the first SPIE symposium (titled Character Recognition Technologies) on Document Recognition and Retrieval provides an opportunity to examine DRR's contributions to the development of document technologies. Many of the tools taken for granted today, including workable general purpose OCR, large-scale, semi-automatic forms processing, inter-format table conversion, and text mining, followed research presented at this venue. This occasion also affords an opportunity to offer tribute to the conference organizers and proceedings editors and to the coterie of professionals who regularly participate in DRR.

Consensus, contracts, and committees.

PubMed

Moreno, J D

1991-08-01

Following a brief account of the puzzle that ethics committees present for the Western Philosophical tradition, I will examine the possibility that social contract theory can contribute to a philosophical account of these committees. Passing through classical as well as contemporary theories, particularly Rawls' recent constructivist approach, I will argue that social contract theory places severe constraints on the authority that may legitimately be granted to ethics committees. This, I conclude, speaks more about the suitability of the theory to this level of analysis than about the ethics committee phenomenon itself.

Theoretical and Experimental Studies of the Electro-Optic Effect: Toward a Microscopic Understanding.

DTIC Science & Technology

1981-08-01

electro - optic effect is investigated both theoretically and experimentally. The theoretical approach is based upon W.A. Harrison’s ’Bond-Orbital Model’. The separate electronic and lattice contributions to the second-order, electro - optic susceptibility are examined within the context of this model and formulae which can accommodate any crystal structure are presented. In addition, a method for estimating the lattice response to a low frequency (dc) electric field is outlined. Finally, experimental measurements of the electro -

Contributions to the Fourth Solar Wind Conference. [interplanetary magnetic fields and medium

NASA Technical Reports Server (NTRS)

Acuna, M. H.; Behannon, K. W.; Burlaga, L. F.; Lepping, R.; Ness, N.; Ogilvie, K.; Pizzo, J.

1979-01-01

Recent results in interplanetary physics are examined. These include observations of shock waves and post-shock magnetic fields made by Voyager 1, 2; observations of the electron temperature as a function of distance between 1.36 AU and 2.25 AU; and observations of the structure of sector boundaries observed by Helios 1. A theory of electron energy transport in the collisionless solar wind is presented, and compared with observations. Alfven waves and Alvenic fluctuations in the solar wind are also discussed.

GSFC Contributions to the NATO X-ray Astronomy Institute, Erice, July 1979. [X-ray spectra of supernova remants, galactic X-ray sources, active galactic nuclei, and clusters of galaxies

NASA Technical Reports Server (NTRS)

Holt, S. S.; Mushotzky, R. F.

1979-01-01

An overview of X-ray astronomical spectroscopy in general is presented and results obtained by HEAO 1 and 2 as well as earlier spacecraft are examined. Particular emphasis is given to the spectra of supernova remnants; galactic binary X-ray sources, cataclysmic variables, bulges, pulsars, and stars; the active nuclei of Seyfert 1 galaxy, BL Lac, and quasars; the diffuse X-ray background; and galactic clusters.

Nursing, obedience, and complicity with eugenics: a contextual interpretation of nursing morality at the turn of the twentieth century

PubMed Central

Berghs, M; de Casterlé, B Dierckx; Gastmans, C

2006-01-01

This paper uses Margaret Urban Walker's “expressive collaborative” method of moral inquiry to examine and illustrate the morality of nurses in Great Britain from around 1860 to 1915, as well as nursing complicity in one of the first eugenic policies. The authors aim to focus on how context shapes and limits morality and agency in nurses and contributes to a better understanding of debates in nursing ethics both in the past and present. PMID:16446419

Aquatic rehabilitation for the treatment of neurological disorders.

PubMed

Morris, D M

1994-01-01

Patients with neurological disorders present therapists with complex challenges for treatment, including weakness, hypertonicity, voluntary movement deficit, limited range of motion, sensory loss, incoordination, and postural instability. The presence of one or more of these impairments negatively influences these patients by contributing to problems in walking, transferring, and reaching. Aquatic rehabilitation offers a unique, versatile approach to the treatment of these disabilities. This article examines the problems encountered by patients with neurological disorders, general principles guiding neurotreatment, and aquatic neurorehabilitation approaches.

Unique Contributions of Fathering to Emerging Self-Regulation in Low-Income Ethnic Minority Preschoolers

ERIC Educational Resources Information Center

Owen, Margaret Tresch; Caughy, Margaret O'Brien; Hurst, Jamie R.; Amos, Melissa; Hasanizadeh, Nazly; Mata-Otero, Ana-Maria

2013-01-01

Self-regulation ability is an important component of school readiness and predictor of academic success, but few studies of self-regulation examine contributions of fathering to the emergence of self-regulation in low-income ethnic minority preschoolers. Associations were examined between parental child-oriented parenting support and preschoolers'…

Teacher Perceptions and Expectations of School Counselor Contributions: Implications for Program Planning and Training

ERIC Educational Resources Information Center

Clark, Mary Ann; Amatea, Ellen

2004-01-01

The researchers examined the perceptions of 23 teachers in elementary, middle, and high schools regarding necessary counseling and guidance services, how these services might best be delivered, and teachers' expectations about school counselor contributions and working relationships. The researchers also examined the resulting reflections of the…

Multilevel Exploration of Factors Contributing to the Overrepresentation of Black Students in Office Disciplinary Referrals

ERIC Educational Resources Information Center

Bradshaw, Catherine P.; Mitchell, Mary M.; O'Brennan, Lindsey M.; Leaf, Philip J.

2010-01-01

Although there is increasing awareness of the overrepresentation of ethic minority students--particularly Black students--in disciplinary actions, the extant research has rarely empirically examined potential factors that may contribute to these disparities. The current study used a multilevel modeling approach to examine factors at the child…

Award for Distinguished Scientific Early Career Contributions to Psychology: Robert E. Ployhart

ERIC Educational Resources Information Center

American Psychologist, 2009

2009-01-01

Robert E. Ployhart, recipient of the Award for Distinguished Scientific Early Career Contributions to Psychology, is cited for innovative work in examining reactions to staffing practices and efforts to enhance the acceptability of recruitment and staffing practices; for exemplary use of applied statistical models in examining multilevel effects…

Examining the Relative Contributions of Content Knowledge and Strategic Processing to Comprehension

ERIC Educational Resources Information Center

Aukerman, Maren; Brown, Rachel; Mokhtari, Kouider; Valencia, Sheila; Palincsar, Annemarie

2015-01-01

The essays below were prepared following the LRA session organized by Janice Almasi entitled, "Examining the relative contributions of content knowledge and strategic processing to comprehension." What unites these essays are the personal and historical stances that each writer has taken; in addition, the essays are rich with…

A Contribution to a Theory of Organizations: An Examination of Student Protest.

ERIC Educational Resources Information Center

Norr, James L.

Until recently most of the research on college student protest of the 1960's has taken either a political socialization or cultural-historical perspective. The research reported here takes an organizational perspective with the expectation that an examination of student protest should contribute to a theory of organizations. Two classes of…

Advancing Black Male Success: Understanding the Contributions of Urban Black Colleges and Universities

ERIC Educational Resources Information Center

Gasman, Marybeth; Nguyen, Thai-Huy; Commodore, Felecia

2017-01-01

To understand the context of urban Historically Black Colleges and Universities (HBCUs) and their role in educating Black males, we conducted a literature review examining the academic contributions of these institutions to Black males. To bolster the literature, we examined Integrated Postsecondary Education Data System data, determining a set of…

Factors Contributing to University Image: The Postgraduate Students' Points of View

ERIC Educational Resources Information Center

Aghaz, Asal; Hashemi, Amin; Atashgah, Maryam S. Sharifi

2015-01-01

Despite several studies having been conducted to examine organizational image from a business perspective, there has not been adequate research in the area of perceived image in nonprofit organizations such as universities. Thus, the purpose of this study was to examine the factors contributing to university image, from the postgraduate students'…

Nutritional contribution of lean beef in diets of adults: National Health and Nutrition Examination Survey, 1999-2004

USDA-ARS?s Scientific Manuscript database

The learning outcome was to understand the important contribution of lean beef to total nutrient intake in diets of American adults and to determine dietary intake differences between lean beef consumers and non-consumers. The National Health and Nutritional Examination Survey, 1999-2004, 24-hour di...

Non-Overweight and Overweight Children's Physical Activity during School Recess

ERIC Educational Resources Information Center

Ridgers, Nicola D.; Saint-Maurice, Pedro F.; Welk, Gregory J.; Siahpush, Mohammad; Huberty, Jennifer L.

2014-01-01

Objective: Little research has investigated children's physical activity levels during school recess and the contribution of recess to school day physical activity levels by weight status. The aims of this study were to examine non-overweight and overweight children's physical activity levels during school recess, and examine the contribution of…

Population changes in residential clusters in Japan.

PubMed

Sekiguchi, Takuya; Tamura, Kohei; Masuda, Naoki

2018-01-01

Population dynamics in urban and rural areas are different. Understanding factors that contribute to local population changes has various socioeconomic and political implications. In the present study, we use population census data in Japan to examine contributors to the population growth of residential clusters between years 2005 and 2010. The data set covers the entirety of Japan and has a high spatial resolution of 500 × 500 m2, enabling us to examine population dynamics in various parts of the country (urban and rural) using statistical analysis. We found that, in addition to the area, population density, and age, the shape of the cluster and the spatial distribution of inhabitants within the cluster are significantly related to the population growth rate of a residential cluster. Specifically, the population tends to grow if the cluster is "round" shaped (given the area) and the population is concentrated near the center rather than periphery of the cluster. Combination of the present results and analysis framework with other factors that have been omitted in the present study, such as migration, terrain, and transportation infrastructure, will be fruitful.

Irreversible Entropy Production in Two-Phase Mixing Layers

NASA Technical Reports Server (NTRS)

Okongo, Nora

2003-01-01

This report presents a study of dissipation (irreversible production of entropy) in three-dimensional, temporal mixing layers laden with evaporating liquid drops. The purpose of the study is to examine the effects of evaporating drops on the development of turbulent features in flows. Direct numerical simulations were performed to analyze transitional states of three mixing layers: one without drops, and two that included drops at different initial mass loadings. Without drops, the dissipation is essentially due to viscous effects. It was found that in the presence of drops, the largest contribution to dissipation was made by heating and evaporation of the drops, and that at large length scales, this contribution is positive (signifying that the drops reduce turbulence), while at small scales, this contribution is negative (the drops increase turbulence). The second largest contribution to dissipation was found to be associated with the chemical potential, which leads to an increase in turbulence at large scales and a decrease in turbulence at small scales. The next smaller contribution was found to be that of viscosity. The fact that viscosity effects are only third in order of magnitude in the dissipation is in sharp contrast to the situation for the mixing layer without the drops. The next smaller contribution - that of the drag and momentum of the vapor from the drops - was found to be negative at lower mass loading but to become positive at higher mass loading.

Two loop correction to interference in $$gg \\to ZZ$$

DOE PAGES

Campbell, John M.; Ellis, R. Keith; Czakon, Michal; ...

2016-08-01

We present results for the production of a pair of on-shell Z bosons via gluon-gluon fusion. This process occurs both through the production and decay of the Higgs boson, and through continuum production where the Z boson couples to a loop of massless quarks or to a massive quark. We calculate the interference of the two processes and its contribution to the cross section up to and including order O(αmore » $$_{s}^{3}$$ ). The two-loop contributions to the amplitude are all known analytically, except for the continuum production through loops of top quarks of mass m. The latter contribution is important for the invariant mass of the two Z bosons, (as measured by the mass of their leptonic decay products, m$$_{4l}$$), in a regime where m$$_{4l}$$ ≥ 2m because of the contributions of longitudinal bosons. We examine all the contributions to the virtual amplitude involving top quarks, as expansions about the heavy top quark limit combined with a conformal mapping and Padé approximants. Comparison with the analytic results, where known, allows us to assess the validity of the heavy quark expansion, and it extensions. We give results for the NLO corrections to this interference, including both real and virtual radiation.« less

The characterization of widespread fatigue damage in fuselage structure

NASA Technical Reports Server (NTRS)

Piascik, Robert S.; Willard, Scott A.; Miller, Matthew

1994-01-01

The characteristics of widespread fatigue damage (WSFD) in fuselage riveted structure were established by detailed nondestructive and destructive examinations of fatigue damage contained in a full size fuselage test article. The objectives of this were to establish an experimental data base for validating emerging WSFD analytical prediction methodology and to identify first order effects that contribute to fatigue crack initiation and growth. Detailed examinations were performed on a test panel containing four bays of a riveted lap splice joint. The panel was removed from a full scale fuselage test article after receiving 60,000 full pressurization cycles. The results of in situ examinations document the progression of fuselage skin fatigue crack growth through crack linkup. Detailed tear down examinations and fractography of the lap splice joint region revealed fatigue crack initiation sites, crack morphology, and crack linkup geometry. From this large data base, distributions of crack size and locations are presented and discussions of operative damage mechanisms are offered.

The characterization of widespread fatigue damage in fuselage structure

NASA Technical Reports Server (NTRS)

Piascik, Robert S.; Willard, Scott A.; Miller, Matthew

1994-01-01

The characteristics of widespread fatigue damage (WSFD) in fuselage riveted structure were established by detailed nondestructive and destructive examinations of fatigue damage contained in a full size fuselage test article. The objectives of this work were to establish an experimental data base for validating emerging WSFD analytical prediction methodology and to identify first order effects that contribute to fatigue crack initiation and growth. Detailed examinations were performed on a test panel containing four bays of a riveted lap splice joint. The panel was removed from a full scale fuselage test article after receiving 60,000 full pressurization cycles. The results of in situ examinations document the progression of fuselage skin fatigue crack growth through crack linkup. Detailed tear down examinations and fractography of the lap splice joint region revealed fatigue crack initiation sites, crack morphology and crack linkup geometry. From this large data base, distributions of crack size and locations are presented and discussions of operative damage mechanisms are offered.

Team-Based Learning in a Community Health Nursing Course: Improving Academic Outcomes.

PubMed

Miles, Jane M; Larson, Kim L; Swanson, Melvin

2017-07-01

Population health concepts, such as upstream thinking, present challenging ideas to undergraduate nursing students grounded in an acute care orientation. The purpose of this study was to describe how team-based learning (TBL) influenced academic outcomes in a community health nursing course. A descriptive correlational design examined the relationship among student scores on individual readiness assurance tests (iRATs), team readiness assurance tests (tRATs), and the final examination. The sample included 221 nursing students who had completed the course. A large positive correlation was found between iRAT and final examination scores. For all students, the mean tRAT score was higher than the mean iRAT score. A moderate positive correlation existed between tRAT and final examination scores. The study contributes to understanding the effects of TBL pedagogy on student academic outcomes in nursing education. TBL is a valuable teaching method in a course requiring the application of challenging concepts. [J Nurs Educ. 2017;56(7):425-429.]. Copyright 2017, SLACK Incorporated.

[Hemisphere dominance of cortical speech processing and its dynamics in the course of aphasia therapy. A psychophysiologic contribution to the discussion of the neuronal plasticity hypothesis].

PubMed

Maier, R; Lünser, W

1991-01-01

Examinations of aphasic patients by using cognitive tasks were based on the hypothesis that semantically evoked potentials correlate to the processing of information in the cortical areas of Broca and Wernicke. Some of the examined right-handed patients with ischemic lesions of the left hemisphere produced characteristic potentials in the right temporal lobe, and not in the dominant left lobe as was expected. These case histories suggest that in these patients speech processing moved into the subdominant hemisphere as a result of compensation after cerebral damage by using the faculty of neuroplasticity. Furthermore an extended classification of aphasias is presented, illustrated by a three-parameter model.

Hospital employee job resourcefulness: an empirical study and implications for health care marketing.

PubMed

Harris, Eric G; Artis, Andrew B; Fogliasso, Chris; Fleming, David E

2007-01-01

In today's competitive hospital marketing environment, it is imperative that administrators ensure that their hospitals are operating as efficiently and as effectively as possible. "Doing more with less" has become a mandate for hospital administrators and employees. The current research replicates and extends previous work devoted to this topic by examining the job resourcefulness construct in a hospital setting. Job resourcefulness, an individual difference variable, assesses the degree to which employees are able to overcome resource constraints in the pursuit of job-related goals. The work builds upon previous work and contributes to the hospital marketing literature by examining the relationships between resourcefulness, personality influencers, role stressors, and job tenure. Research implications and suggestions for future work in the area are presented.

Emotional Intelligence: A Theoretical Framework for Individual Differences in Affective Forecasting

PubMed Central

Hoerger, Michael; Chapman, Benjamin P.; Epstein, Ronald M.; Duberstein, Paul R.

2011-01-01

Only recently have researchers begun to examine individual differences in affective forecasting. The present investigation was designed to make a theoretical contribution to this emerging literature by examining the role of emotional intelligence in affective forecasting. Emotional intelligence was hypothesized to be associated with affective forecasting accuracy, memory for emotional reactions, and subsequent improvement on an affective forecasting task involving emotionally-evocative pictures. Results from two studies (N = 511) supported our hypotheses. Emotional intelligence was associated with accuracy in predicting, encoding, and consolidating emotional reactions. Furthermore, emotional intelligence was associated with greater improvement on a second affective forecasting task, with the relationship explained by basic memory processes. Implications for future research on basic and applied decision making are discussed. PMID:22251053

Folliculotropic mycosis fungoides and a leonine clinical appearance of the face.

PubMed

Ito, Tomonobu; Yamamoto, Toshiyuki; Matsumoto, Yuka; Wakamatsu, Junko; Kato, Yukihiko; Tsuboi, Ryoji

2008-09-15

A 73-year-old man presented with a two year history of multiple nodules and follicular papules accompanied by slight itching on the face and the forearm. A physical examination showed multiple, soft, erythematous nodules on the forehead, cheek, and jaw, contributing to a generally leonine appearance of the face. Histopathological examination from the forehead revealed dense, massive concentrations of atypical lymphocytes in the dermis, and the forearm showed infiltration of atypical lymphocytes predominantly around the follicles. We diagnosed this condition as folliculotropic cutaneous T cell lymphoma (CTCL). EPOCH therapy was very effective and the lesions of the forehead and forearm showed a decrease in tumor elevation; the histology showed a precipitous decrease in the number of the atypical lymphocytes.

The Critical Roles of Task Conflict and Job Autonomy in the Relationship Between Proactive Personalities and Innovative Employee Behavior.

PubMed

Giebels, Ellen; de Reuver, Renee S M; Rispens, Sonja; Ufkes, Elze G

2016-09-01

We examine why and when proactive personality is beneficial for innovative behavior at work. Based on a survey among 166 employees working in 35 departments of a large municipality in the Netherlands we show that an increase in task conflicts explains the positive relation between a proactive personality and innovative employee behavior. This process is moderated by job autonomy in such a way that the relationship between proactive personality and task conflict is particularly strong under low compared with high autonomy. The present research contributes to the discussion on the potential benefits of task conflict for change processes and highlights the importance of examining the interplay between personality and work context for understanding innovation practices.

Numerical model-based diagnostic study of the rapid development phase of the Presidents' Day cyclone

NASA Technical Reports Server (NTRS)

Whitaker, Jeffrey S.; Uccellini, Louis W.; Brill, Keith F.

1988-01-01

A mesoscale model simulation of the Presidents' Day cyclone at 1200 GMT 18 February 1979 is presented which captures the upper-tropospheric intrusion of stratospheric air upstream of the East Coast and subsequent development of the surface cyclone. The model simulation is then used to examine the descent of the stratospheric air mass and the interaction of this air mass with a lower-tropospheric potential vorticity maximum associated with an inverted trough and coastal front along the East Coast. The model is also used to examine the processes that contribute to the rapid decrease of sea-level pressure and increase in lower-tropospheric cyclonic vorticity during the explosive development phase of the cyclone.

Emotional intelligence: a theoretical framework for individual differences in affective forecasting.

PubMed

Hoerger, Michael; Chapman, Benjamin P; Epstein, Ronald M; Duberstein, Paul R

2012-08-01

Only recently have researchers begun to examine individual differences in affective forecasting. The present investigation was designed to make a theoretical contribution to this emerging literature by examining the role of emotional intelligence in affective forecasting. Emotional intelligence was hypothesized to be associated with affective forecasting accuracy, memory for emotional reactions, and subsequent improvement on an affective forecasting task involving emotionally evocative pictures. Results from two studies (N = 511) supported our hypotheses. Emotional intelligence was associated with accuracy in predicting, encoding, and consolidating emotional reactions. Furthermore, emotional intelligence was associated with greater improvement on a second affective forecasting task, with the relationship explained by basic memory processes. Implications for future research on basic and applied decision making are discussed.

Dose and risk in diagnostic radiology: How big How little Lecture Number 16

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

Webster, E.W.

1992-01-01

This lecture is divided into two parts: dose and risk. The dose segment is technical and noncontroversial since it deals with straightforward measurements or calculations which do not depend on unproven hypotheses. Some conflicting contributions of low dose epidemiological studies to the appraisal of risk are briefly presented. Attention is focused on the following: dose reduction in radiography; dose reduction in fluoroscopy; limitations of dose reduction; estimated radiation risks for diagnostic radiology examinations; excess breast cancer following X-ray examinations for scoliosis; dose-response relation for human mammary cancer; lung cancer from protracted X-irradiation; leukemia and diagnostic X-ray exposure; and thyroid cancermore » after diagnostic dose of I-131.« less

Gambling Disorder in Veterans: A Review of the Literature and Implications for Future Research.

PubMed

Levy, Lauren; Tracy, J Kathleen

2018-02-09

To review the scientific literature examining gambling behavior in military veterans in order to summarize factors associated with gambling behavior in this population. Database searches were employed to identify articles specifically examining gambling behavior in military veterans. Cumulative search results identified 52 articles (1983-2017) examining gambling behavior in veteran populations. Articles generally fell into one or more of the following categories: prevalence, psychological profiles and psychiatric comorbidities, treatment evaluations, measurement, and genetic contributions to gambling disorder. Results from reviewed articles are presented and implications for future research discussed. Research to date has provided an excellent foundation to inform potential screening, intervention and research activities going forward. The authors suggest that a public health approach to future research endeavors would strengthen the evidence base regarding gambling in veteran populations and better inform strategies for screening, prevention and treatment.

Suicidality among College and University Students: Contributing Factors and Preventive Response.

ERIC Educational Resources Information Center

Jones, Joan Wickham

This paper surveys and evaluates the research since 1975 on college and university student suicidality in the United States. It focuses on factors which contribute to suicidality, preventive responses to suicide and how well the preventive responses address the contributing factors. Contributing factors examined include various feeling states…

Money, politics, and medicine: the American Medical PAC's strategy of giving in U.S. house races.

PubMed

Wilkerson, J D; Carrell, D

1999-04-01

We examine contributions by the American Medical Association's political action committee (AMPAC) to candidates for seats in the U.S. House of Representatives during two electoral cycles (1989-1990 and 1991-1992). In contrast to earlier studies, we do not find any systematic evidence to support the conventional wisdom that AMPAC contributes to influence legislators' positions on roll call votes or that AMPAC's contribution decisions are influenced by legislators' voting positions. We do find that AMPAC contributes to promote access to decision makers and to help elect (or reelect) legislators who would be expected to be more generally sympathetic to the economic and practice concerns of AMA physicians. As points of comparison, we also examine contributions from the top five tobacco PACs and the National Rifle Association's (NRA) PAC and find that legislators' roll call voting positions are strongly related to contributions received from these organizations.

Is God just a big person? Children's conceptions of God across cultures and religious traditions.

PubMed

Nyhof, Melanie A; Johnson, Carl N

2017-03-01

The present research examines the influence of intuitive cognitive domain and religion on the God concepts of children growing up in religious traditions that present God in ways varying from abstract to concrete. In Study 1, we compared children from a Latter-Day Saints (LDS) background with those from mainstream Christian (MC) backgrounds in the United States. In contrast to MC theology that holds that God is all-knowing, all-powerful, and disembodied, LDS theology depicts God as embodied. In Study 1, 3- to 7-year-olds from LDS and MC backgrounds were asked about supernatural mental and immaterial attributes of God, a ghost, a dad, and a bug. In Study 2, children ages 3-7 from Muslim and Catholic backgrounds in Indonesia were presented with a variant of Study 1. Taken together, the two studies examine the God concepts of children raised in three different religious traditions with God concepts that range from highly abstract to concrete. Overall, we find that the youngest children, regardless of religion, distinguish God from humans and hold similar ideas of God, attributing more supernatural psychological than physical properties. Older children's conceptions of God are more in line with the theological notions of their traditions. The results suggest that children are not simply anthropomorphic in their God concepts, but early on understand supernatural agents as having special mental properties and they continue to learn about differences between agents, influenced by their religious traditions. Statement of contribution What is already known on this subject Research on children's God concepts has established that children begin to distinguish the mind of God from that of humans by around age 4-5. The main debate in the field is whether children start out thinking about God in anthropomorphic terms or whether they start out with an undifferentiated idea of agents' minds as all having access to knowledge. Research on children's understanding of immortality has demonstrated that around the same age that children begin differentiating God's mind from human minds, they also differentiate between the two in terms of life-cycle attributes, attributing immortality to God, but not to humans. What does this study add? The present research contributes to the field by examining the God concepts of children from different religious backgrounds. These religious backgrounds have theologies with God concepts that range from physically concrete (Latter-Day Saints or Mormonism) to highly abstract (Islam). We also include Christian samples for comparison. The present research examines children's attributions to different supernatural agents including God, but also a ghost and an angel. The present studies look at children's attribution of not only supernatural mental attributions, but also the supernatural physical attributions of immateriality and omnipresence that have been understudied. © 2017 The British Psychological Society.

TCP Packet Trace Analysis. M.S. Thesis

NASA Technical Reports Server (NTRS)

Shepard, Timothy J.

1991-01-01

Examination of a trace of packets collected from the network is often the only method available for diagnosing protocol performance problems in computer networks. This thesis explores the use of packet traces to diagnose performance problems of the transport protocol TCP. Unfortunately, manual examination of these traces can be so tedious that effective analysis is not possible. The primary contribution of this thesis is a graphical method of displaying the packet trace which greatly reduce, the tediousness of examining a packet trace. The graphical method is demonstrated by the examination of some packet traces of typical TCP connections. The performance of two different implementations of TCP sending data across a particular network path is compared. Traces many thousands of packets long are used to demonstrate how effectively the graphical method simplifies examination of long complicated traces. In the comparison of the two TCP implementations, the burstiness of the TCP transmitter appeared to be related to the achieved throughput. A method of quantifying this burstiness is presented and its possible relevance to understanding the performance of TCP is discussed.

Sci-Thur PM – Colourful Interactions: Highlights 07: Canadian Computed Tomography Survey: National Diagnostic Reference Levels

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

Wardlaw, Graeme M; Martel, Narine

Purpose: The Canadian Computed (CT) Tomography Survey sought to collect CT technology and dose index data (CTDI and DLP) at the national level in order to establish national diagnostic reference levels (DRLs) for seven common CT examinations of standard-sized adults and pediatric patients. Methods: A single survey booklet (consisting of four sections) was mailed to and completed for each participating CT scanner. Survey sections collected data on (i) General facility and scanner information, (ii) routine protocols (as available), (iii) individual patient data (as applied) and (iv) manual CTDI measurements. Results: Dose index (CTDIvol and DLP) and associated patient data frommore » 24 280 individual patient exam sequences was analyzed for seven common CT examinations performed in Canada: Adult Head, Chest, Abdomen/Pelvis, and Chest/Abdomen/Pelvis, and Pediatric Head, Chest, and Abdomen. Pediatric examination data was sub-divided into three age ranges: 0–3, 3–7 and 7–13 years. DRLs (75th percentile of dose index distributions) were found for all thirteen groups. Further analysis also permitted segmentation of examination data into 8 sub-groups, whose dose index data was displayed along with group histograms – showing relative contribution of axial vs. helical, contrast use (C+ vs. C-), and application of fixed current vs. dose reduction (DR) – 75th percentiles of DR sub-groups were, in almost all cases, lower than whole group (examination) DRLs. Conclusions: The analysis and summaries presented in the pending survey report can serve to aid local CT imaging optimization efforts within Canada and also contribute further to international efforts in radiation protection of patients.« less

Genetic variations in the serotonergic system contribute to amygdala volume in humans

PubMed Central

Li, Jin; Chen, Chunhui; Wu, Karen; Zhang, Mingxia; Zhu, Bi; Chen, Chuansheng; Moyzis, Robert K.; Dong, Qi

2015-01-01

The amygdala plays a critical role in emotion processing and psychiatric disorders associated with emotion dysfunction. Accumulating evidence suggests that amygdala structure is modulated by serotonin-related genes. However, there is a gap between the small contributions of single loci (less than 1%) and the reported 63–65% heritability of amygdala structure. To understand the “missing heritability,” we systematically explored the contribution of serotonin genes on amygdala structure at the gene set level. The present study of 417 healthy Chinese volunteers examined 129 representative polymorphisms in genes from multiple biological mechanisms in the regulation of serotonin neurotransmission. A system-level approach using multiple regression analyses identified that nine SNPs collectively accounted for approximately 8% of the variance in amygdala volume. Permutation analyses showed that the probability of obtaining these findings by chance was low (p = 0.043, permuted for 1000 times). Findings showed that serotonin genes contribute moderately to individual differences in amygdala volume in a healthy Chinese sample. These results indicate that the system-level approach can help us to understand the genetic basis of a complex trait such as amygdala structure. PMID:26500508

The contribution of local and transport processes to phytoplankton biomass variability over different timescales in the Upper James River, Virginia

NASA Astrophysics Data System (ADS)

Qin, Qubin; Shen, Jian

2017-09-01

Although both local processes (photosynthesis, respiration, grazing, and settling), and transport processes (advective transport and diffusive transport) significantly affect local phytoplankton dynamics, it is difficult to separate their contributions and to investigate the relative importance of each process to the local variability of phytoplankton biomass over different timescales. A method of using the transport rate is introduced to quantify the contribution of transport processes. By combining the time-varying transport rate and high-frequency observed chlorophyll a data, we can explicitly examine the impact of local and transport processes on phytoplankton biomass over a range of timescales from hourly to annually. For the Upper James River, results show that the relative importance of local and transport processes differs on different timescales. Local processes dominate phytoplankton variability on daily to weekly timescales, whereas the contribution of transport processes increases on seasonal to annual timescales and reaches equilibrium with local processes. With the use of the transport rate and high-frequency chlorophyll a data, a method similar to the open water oxygen method for metabolism is also presented to estimate phytoplankton primary production.

Biochemical Characteristics of Organic Matter in a Guano Concretion of Late Miocene or Pliocene Age from Manchester Parish in Jamaica

PubMed Central

Spence, Adrian; Hanson, Richard E.; Johnson, Toni; Robinson, Claion; Annells, Richard N.

2013-01-01

The biogeochemical fate of organic matter (OM) entering soils is an important issue that must be examined to better understand its roles in nitrogen cycling and as a natural modulator of soil-atmospheric carbon fluxes. Despite these critical roles, there are uncertainties in estimating the contribution of this feedback mechanism due in part to a lack of molecular-level information regarding the origin and labile and refractory inventories of OM in soils. In this study, we used a multi-analytical approach to determine molecular-level information for the occurrence and stabilization of OM in a bird guano concretion of the Late Miocene or Pliocene age in Jamaica. We determined the specific organic structures persisting in the concretion and the possible contribution of fossil organic matter to the OM pool in modern environments. Our results indicate that aliphatic species, presumably of a highly polymethylenic nature [(CH2)n], may significantly contribute to the stable soil-C pool. Although not as significant, proteins and carbohydrates were also enriched in the sample, further suggesting that fossil organic matter may contribute to carbon and nitrogen pools in present day soil organic matter. PMID:23843688

Biochemical characteristics of organic matter in a guano concretion of late miocene or pliocene age from manchester parish in Jamaica.

PubMed

Spence, Adrian; Hanson, Richard E; Johnson, Toni; Robinson, Claion; Annells, Richard N

2013-01-01

The biogeochemical fate of organic matter (OM) entering soils is an important issue that must be examined to better understand its roles in nitrogen cycling and as a natural modulator of soil-atmospheric carbon fluxes. Despite these critical roles, there are uncertainties in estimating the contribution of this feedback mechanism due in part to a lack of molecular-level information regarding the origin and labile and refractory inventories of OM in soils. In this study, we used a multi-analytical approach to determine molecular-level information for the occurrence and stabilization of OM in a bird guano concretion of the Late Miocene or Pliocene age in Jamaica. We determined the specific organic structures persisting in the concretion and the possible contribution of fossil organic matter to the OM pool in modern environments. Our results indicate that aliphatic species, presumably of a highly polymethylenic nature [(CH2)n], may significantly contribute to the stable soil-C pool. Although not as significant, proteins and carbohydrates were also enriched in the sample, further suggesting that fossil organic matter may contribute to carbon and nitrogen pools in present day soil organic matter.

Examining the Contribution of Handwriting and Spelling to Written Expression in Kindergarten Children

ERIC Educational Resources Information Center

Puranik, Cynthia S.; AlOtaiba, Stephanie

2012-01-01

In this study, we examined the development of beginning writing skills in kindergarten children and the contribution of spelling and handwriting to these writing skills after accounting for early language, literacy, cognitive skills, and student characteristics. Two hundred and forty two children were given a battery of cognitive, oral language,…

Outlining a Framework for the Use of ICT in Disaster Management

DTIC Science & Technology

2014-09-01

disaster relief operations. The research contributes to the body of knowledge by examining the problems and influences appearing with use of ICT in...usage of ICT in disaster relief operations. The research contributes to the body of knowledge by examining the problems and influences appearing...1 A. RESEARCH STRUCTURE ............................................................................2 1. Problem Statement

Food sources of alpha-linolenic acid (PFA 18:3), listed in descending order by percentages of their contribution to intake, based on data from the National Health and Nutrition Examination Survey 2005-2006

Cancer.gov

Food sources of alpha-linolenic acid (PFA 18:3), listed in descending order by percentages of their contribution to intake, based on data from the National Health and Nutrition Examination Survey 2005-2006

Food sources of arachidonic acid (PFA 20:4), listed in descending order by percentages of their contribution to intake, based on data from the National Health and Nutrition Examination Survey 2005-2006

Cancer.gov

Food sources of arachidonic acid (PFA 20:4), listed in descending order by percentages of their contribution to intake, based on data from the National Health and Nutrition Examination Survey 2005-2006

What Contributes to Gifted Adolescent Females' Talent Development at a High-Achieving, Secondary Girls' School?

ERIC Educational Resources Information Center

Tweedale, Charlotte; Kronborg, Leonie

2015-01-01

The purpose of this research was to examine what contributes to gifted adolescent females' talent development at a high-achieving girls' school. Using Kronborg's (2010) Talent Development Model for Eminent Women as a theoretical framework, this research examined the conditions that supported and those that hindered the participants' talent…

Physical Education and Recess Contributions to Sixth Graders' Physical Activity

ERIC Educational Resources Information Center

Gutierrez, Ashley A.; Williams, Skip M.; Coleman, Margaret M.; Garrahy, Deborah A.; Laurson, Kelly R.

2016-01-01

Background: The purpose of this study was twofold: (a) to examine the percentage of the daily threshold (12,000 steps) that physical education (PE) class and recess contribute to 6th grade students' overall daily physical activity (PA) and (b) to examine the relationships between gender, PA outside of school, BMI, and steps during both recess and…

Successful Girls? Complicating Post-Feminist, Neoliberal Discourses of Educational Achievement and Gender Equality

ERIC Educational Resources Information Center

Ringrose, Jessica

2007-01-01

This paper examines how an ongoing educational panic over failing boys has contributed to a new celebratory discourse about successful girls. Rather than conceive of this shift as an anti-feminist feminist backlash, the paper examines how the successful girl discourse is postfeminist, and how liberal feminist theory has contributed to narrowly…

Relation of Three Mechanisms of Working Memory to Children's Complex Span Performance

ERIC Educational Resources Information Center

Magimairaj, Beula; Montgomery, James; Marinellie, Sally; McCarthy, John

2009-01-01

There is a paucity of research examining the relative contribution of the different mechanisms of working memory (short-term storage [STM], processing speed) to children's complex memory span. This study served to replicate and extend the few extant studies that have examined the issue. In this study, the relative contribution of three mechanisms…

Understanding the Life Cycle of Computer-Based Models: The Role of Expert Contributions in Design, Development and Implementation

ERIC Educational Resources Information Center

Waight, Noemi; Liu, Xiufeng; Gregorius, Roberto Ma.

2015-01-01

This paper examined the nuances of the background process of design and development and follow up classroom implementation of computer-based models for high school chemistry. More specifically, the study examined the knowledge contributions of an interdisciplinary team of experts; points of tensions, negotiations and non-negotiable aspects of…

Factors Contributing to Urban Heat Island Development: A Global Perspective

NASA Astrophysics Data System (ADS)

Hertel, W.; Snyder, P. K.; Twine, T. E.

2012-12-01

Urban heat islands (UHIs) are the result of the urban core of a city encountering temperatures that are warmer than the surrounding rural areas. Temperature in the urban core can be 2-5°C warmer during the day and as much as 10°C warmer at night compared to outlying areas. This modification of the local climate can contribute to significant health-related impacts during heat waves, increased energy consumption, a decrease in air quality, deteriorating urban ecosystems, and enhancing the thermal pollution into urban water bodies. To understand the mechanisms contributing to the formation of UHIs and to identify sound mitigation strategies requires examining the UHIs of cities around the world to look for factors that enhance or minimize the heat island effect. Numerous factors influence the strength of the UHI, and vary from city to city. Population size and density influence the magnitude and spatial extent of the UHI. The ecosystem in which the city resides affects the rural climatology. Regional weather patterns can also influence the development of UHIs, with the frequency of certain types of weather conducive to the development of strong UHIs. Local geography such as proximity to water bodies and topography can influence UHI development. Cultural and regional influences such as the use of certain types of building materials, architecture, and the density of vegetation can all contribute towards the strength of a city's UHI. To better understand how UHIs develop and to understand the factors that influence them, we have undertaken the Islands in the Sun project, which includes an analysis of the UHIs of the largest cities in the world. In this study we examine how different factors have influenced the structure of the UHI and to identify factors that can mitigate and minimize their impact. Here we present a preliminary analysis of four metropolitan areas: Minneapolis-St. Paul, Buenos Aires, Riyadh, and Jakarta. In this study we investigate how various factors define a city's UHI. The cities presented here include some of the factors that can influence the UHI signal. The magnitude, diurnal and seasonal variability of the UHI is examined in each city through temperature records and satellite imagery. The UHIs are analyzed to assess the influences of the local geography and meteorology, the ecosystem in which the city resides, and the nature of the built environment. Because the Minneapolis-St. Paul region contains numerous water bodies, special emphasis is placed on the impact of its UHI on thermal pollution.

Daily consumption of foods and nutrients from institutional and home sources among young children attending two contrasting day-care centers in Guatemala City.

PubMed

Vossenaar, M; Jaramillo, P M; Soto-Méndez, M-J; Panday, B; Hamelinck, V; Bermúdez, O I; Doak, C M; Mathias, P; Solomons, N W

2012-12-01

Adequate nutrition is critical to child development and institutions such as day-care centers could potentially complement children's diets to achieve optimal daily intakes. The aim of the study was to describe the full-day diet of children, examining and contrasting the relative contribution of home-derived versus institutional energy and nutrient sources. The present comparison should be considered in the domain of a case-study format. The diets of 33, 3-6 y old children attending low-income day-care centers serving either 3 or a single meal were examined. The home-diet was assessed by means of 3 non-consecutive 24-hr recalls. Estimated energy and nutrient intakes at the centers and at home were assessed and related to Recommended Nutrient Intakes (RNI). Nutrient densities, critical densities and main sources of nutrients were computed. We observed that in children attending the day-care center serving three meals, home-foods contributed less than half the daily energy (47.7%) and between 29.9% and 53.5% of daily nutrients. In children receiving only lunch outside the home, energy contribution from the home was 83.9% and 304 kcal lower than for children receiving 3 meals. Furthermore, between 59.0% and 94.8% of daily nutrients were provided at home. Daily energy, nutrient intakes and nutrient densities were well above the nutrient requirements for this age group, and particularly high for vitamin A. The overall dietary variety was superior in the situation of greater contribution of home fare, but overall the nutrient density and adequacy of the aggregate intakes did not differ in any important manner.

Marital enqing: an examination of its relationship to spousal contributions, sacrifices, and family stress in Chinese marriages.

PubMed

Chen, Fu-Mei; Li, Tsui-Shan

2007-08-01

The purpose of this study was to extend understanding of Chinese couples' enqing, a culturally specific component of marital affection that involves the expression of feelings of gratitude and admiration toward one's spouse. In this study, the authors examined family stress, spousal contributions, and sacrifices to study their possible effects on enqing in Chinese marriages. Participants were 455 married people living in northern Taiwan. Overall, the results highlighted the importance of spousal contributions and sacrifices in the development of marital enqing. Additionally, the results indicated that family stress moderated the spousal economic contribution--enqing relationship and the spousal sacrifices--enqing relationship for wives, but not for husbands.

Both trait and state mindfulness predict lower aggressiveness via anger rumination: A multilevel mediation analysis

PubMed Central

Eisenlohr-Moul, Tory A.; Peters, Jessica R.; Pond, Richard S.; DeWall, C. Nathan

2016-01-01

Trait mindfulness, or the capacity for nonjudgmental, present-centered attention, predicts lower aggression in cross-sectional samples, an effect mediated by reduced anger rumination. Experimental work also implicates state mindfulness (i.e., fluctuations around one's typical mindfulness) in aggression. Despite evidence that both trait and state mindfulness predict lower aggression, their relative impact and their mechanisms remain unclear. Higher trait mindfulness and state increases in mindfulness facets may reduce aggression-related outcomes by (1) limiting the intensity of anger, or (2) limiting rumination on anger experiences. The present study tests two hypotheses: First, that both trait and state mindfulness contribute unique variance to lower aggressiveness, and second, that the impact of both trait and state mindfulness on aggressiveness will be uniquely partially mediated by both anger intensity and anger rumination. 86 participants completed trait measures of mindfulness, anger intensity, and anger rumination, then completed diaries for 35 days assessing mindfulness, anger intensity, anger rumination, anger expression, and self-reported and behavioral aggressiveness. Using multilevel zero-inflated regression, we examined unique contributions of trait and state mindfulness facets to daily anger expression and aggressiveness. We also examined the mediating roles of anger intensity and anger rumination at both trait and state levels. Mindfulness facets predicted anger expression and aggressiveness indirectly through anger rumination after controlling for indirect pathways through anger intensity. Individuals with high or fluctuating aggression may benefit from mindfulness training to reduce both intensity of and rumination on anger. PMID:27429667

Prefrontal Contribution to Decision-Making under Free-Choice Conditions

PubMed Central

Funahashi, Shintaro

2017-01-01

Executive function is thought to be the coordinated operation of multiple neural processes and allows to accomplish a current goal flexibly. The most important function of the prefrontal cortex is the executive function. Among a variety of executive functions in which the prefrontal cortex participates, decision-making is one of the most important. Although the prefrontal contribution to decision-making has been examined using a variety of behavioral tasks, recent studies using fMRI have shown that the prefrontal cortex participates in decision-making under free-choice conditions. Since decision-making under free-choice conditions represents the very first stage for any kind of decision-making process, it is important that we understand its neural mechanism. Although few studies have examined this issue while a monkey performed a free-choice task, those studies showed that, when the monkey made a decision to subsequently choose one particular option, prefrontal neurons showing selectivity to that option exhibited transient activation just before presentation of the imperative cue. Further studies have suggested that this transient increase is caused by the irregular fluctuation of spontaneous firing just before cue presentation, which enhances the response to the cue and biases the strength of the neuron's selectivity to the option. In addition, this biasing effect was observed only in neurons that exhibited sustained delay-period activity, indicating that this biasing effect not only influences the animal's decision for an upcoming choice, but also is linked to working memory mechanisms in the prefrontal cortex. PMID:28798662

Isolating age-group differences in working memory load-related neural activity: assessing the contribution of working memory capacity using a partial-trial fMRI method.

PubMed

Bennett, Ilana J; Rivera, Hannah G; Rypma, Bart

2013-05-15

Previous studies examining age-group differences in working memory load-related neural activity have yielded mixed results. When present, age-group differences in working memory capacity are frequently proposed to underlie these neural effects. However, direct relationships between working memory capacity and working memory load-related activity have only been observed in younger adults. These relationships remain untested in healthy aging. Therefore, the present study examined patterns of working memory load-related activity in 22 younger and 20 older adults and assessed the contribution of working memory capacity to these load-related effects. Participants performed a partial-trial delayed response item recognition task during functional magnetic resonance imaging. In this task, participants encoded either 2 or 6 letters, maintained them during a delay, and then indicated whether a probe was present in the memory set. Behavioral results revealed faster and more accurate responses to load 2 versus 6, with age-group differences in this load condition effect for the accuracy measure. Neuroimaging results revealed one region (medial superior frontal gyrus) that showed age-group differences in load-related activity during the retrieval period, with less (greater) neural activity for the low versus high load condition in younger (older) adults. Furthermore, for older adults, load-related activity did not vary as a function of working memory capacity. Thus, working memory-related activity varies with healthy aging, but these patterns are not due solely to working memory capacity. Neurocognitive aging theories that feature capacity will need to account for these results. Copyright © 2013 Elsevier Inc. All rights reserved.

Cilioretinal artery occlusion and anterior ischemic optic neuropathy as the initial presentation in a child female carrier of Fabry disease.

PubMed

Ersoz, M Giray; Ture, Gamze

2018-04-01

To report the youngest female carrier of Fabry disease, complicated by cilioretinal artery occlusion and anterior ischemic optic neuropathy (AION). Case report. An 11-year-old girl was referred to our clinic with painless, acute loss of vision in her right eye. Posterior segment examination and fluorescein angiography revealed cilioretinal artery occlusion and AION. Systemic evaluations were unremarkable, except for a low blood α-galactosidase A enzyme level of 242.27 pmol/spot*20 h (reference range: 450-2000 pmol/spot*20 h). The patient was diagnosed with female carrier of Fabry disease. Retinal vascular occlusions are rare in childhood, and Fabry disease may present with retinal vascular occlusion. Ophthalmological examinations may be contributing for early detection of the disease. To the best of our knowledge, this is the first report of a child female carrier of Fabry disease, complicated by cilioretinal artery occlusion and AION.

Using a Cultural and RDoC Framework to Conceptualize Anxiety in Asian Americans

PubMed Central

Liu, Huiting; Lieberman, Lynne; Stevens, Elizabeth; Auerbach, Randy P.; Shankman, Stewart A.

2016-01-01

Asian Americans are one of the fastest growing minority group in the United States; however, mental health within this population segment, particularly anxiety disorders, remains significantly understudied. Both the heterogeneity within the Asian American population, along with the multidimensional nature of anxiety, contribute to difficulties in understanding anxiety in this population. The present paper will review two sources of heterogeneity within anxiety in Asian Americans: (1) cultural variables and (2) mechanisms or components of anxiety. Specifically, we will examine four cultural variables most commonly found in research related to anxiety in Asian Americans: acculturation, affect valuation, loss of face, and individualism-collectivism. We will also discuss ways to parse anxiety through a Research Domain Criteria (RDoC) framework, specifically focusing on sensitivity to acute and potential threat, constructs within the Negative Valence System. We also present previously unpublished preliminary data to illustrate one way of examining ethnic differences in anxiety using an RDoC framework. Finally, this paper offers recommendations for future work in this area. PMID:27659553

Sildenafil Inhibits the Proliferation of Cultured Human Endothelial Cells

PubMed Central

Erdogan, Ali; Luedders, Doerte Wiebke; Muenz, Benedikt Manuel; Schaefer, Christian Alexander; Tillmanns, Harald; Wiecha, Johannes; Kuhlmann, Christoph Ruediger Wolfram

2007-01-01

The proliferation of endothelial cells plays a crucial role in the development of intraplaque angiogenesis (IPA). IPA is a major source of intraplaque hemorrhage and therefore contributes to the destabilization of atherosclerotic plaques. Therefore, the aim of the present study was to examine, whether sildenafil inhibits endothelial cell growth. The proliferation of human endothelial cells derived from umbilical cord veins (HUVEC) was examined on DNA level by measurements of (3H)-thymidine incorporation. Cell viability was analyzed using trypan blue staining. The proliferation of cultured human endothelial cells was significantly decreased by 1 μmol/l (-48.4%) and 10 μmol/l (-89.6%) sildenafil (n=10, p<0.05). This was not a cytotoxic effect, because cell viability was only reduced at sildenafil concentrations of 50 μmol/l or greater. In addition sildenafil significantly reduced endothelial proliferation induced by bFGF (n=10, p<0.05). The presented results demonstrate an antiangiogenic effect of sildenafil that might be useful in the prevention of atherosclerotic plaque vascularization. PMID:23675029

A Preliminary Analysis of LANDSAT-4 Thematic Mapper Radiometric Performance

NASA Technical Reports Server (NTRS)

Justice, C.; Fusco, L.; Mehl, W.

1984-01-01

Analysis was performed to characterize the radiometry of three Thematic Mapper (TM) digital products of a scene of Arkansas. The three digital products examined were the NASA raw (BT) product, the radiometrically corrected (AT) product and the radiometrically and geometrically corrected (PT) product. The frequency distribution of the digital data; the statistical correlation between the bands; and the variability between the detectors within a band were examined on a series of image subsets from the full scene. The results are presented from one 1024 x 1024 pixel subset of Realfoot Lake, Tennessee which displayed a representative range of ground conditions and cover types occurring within the full frame image. Bands 1, 2 and 5 of the sample area are presented. The subsets were extracted from the three digital data products to cover the same geographic area. This analysis provides the first step towards a full appraisal of the TM radiometry being performed as part of the ESA/CEC contribution to the NASA/LIDQA program.

Using a cultural and RDoC framework to conceptualize anxiety in Asian Americans.

PubMed

Liu, Huiting; Lieberman, Lynne; Stevens, Elizabeth S; Auerbach, Randy P; Shankman, Stewart A

2017-05-01

Asian Americans are one of the fastest growing minority groups in the United States; however, mental health within this population segment, particularly anxiety disorders, remains significantly understudied. Both the heterogeneity within the Asian American population and the multidimensional nature of anxiety contribute to difficulties in understanding anxiety in this population. The present paper reviewed two sources of heterogeneity within anxiety in Asian Americans: (1) cultural variables and (2) mechanisms or components of anxiety. Specifically, we examined four cultural variables most commonly found in research related to anxiety in Asian Americans: acculturation, loss of face, affect valuation, and individualism-collectivism. We also discussed ways to parse anxiety through a Research Domain Criteria (RDoC) framework, specifically focusing on sensitivity to acute and potential threat, constructs within the Negative Valence System. Previously unpublished preliminary data were presented to illustrate one way of examining ethnic differences in anxiety using an RDoC framework. Finally, this paper offered recommendations for future work in this area. Copyright © 2016 Elsevier Ltd. All rights reserved.

Bride Stripped Bare: On The Problems Of Interpretation Of Holographic Art

NASA Astrophysics Data System (ADS)

Razutis, Al

1987-06-01

The inclusion of the arts in an otherwise scientific and technical conference is occasion to examine the relationship between art and science, and particularly in the newly emergent field of holography. Discussions concerning the "marriage of art and science" have been conducted before and surely will continue in the future. In this paper I wish to readdress the manner in which scientific rationalism interprets holographic art and the manner in which the arts can respond and contribute to further discussion. I will posit art holography as a kind of 'bride' to the more estabished and male-dominated technologies, a bride of unknown qualities. This paper presents a number of problematic conditions affect-ing art holography proper and examines its relationship to contemporary culture. Furthermore, the paper presents a theoretical schema for the development of a semiotic which can be employed in the study of display and art holography, a schema responsive to scientific rationalism and one which provides a point of further theoretical development of use value to both scientist and artist.

Modern Earthworks and Their Cosmic Embrace

NASA Astrophysics Data System (ADS)

Hatch, J. G.

2011-06-01

This paper examines the use of sky imagery in a number of modern Earthworks. They range from Robert Smithson's Spiral Jetty (1970), Robert Morris' Observatory (1971), Nancy Holt's Sun Tunnels (1973-76), to ongoing manifestations like Charles Ross' Star Axis (1971-present) and James Turrell's Roden Crater Project (1974-present). My interest in discussing these various works is to look at why so many of them have focused on the firmament, what factors contributed to this interest, their specific meaning, what the various sites of these works have offered, and last but not least, their possible relationship to past Earth projects, like Stonehenge and Machu Picchu, for example, that have also embraced the sky as their subject.

Programmers, professors, and parasites: credit and co-authorship in computer science.

PubMed

Solomon, Justin

2009-12-01

This article presents an in-depth analysis of past and present publishing practices in academic computer science to suggest the establishment of a more consistent publishing standard. Historical precedent for academic publishing in computer science is established through the study of anecdotes as well as statistics collected from databases of published computer science papers. After examining these facts alongside information about analogous publishing situations and standards in other scientific fields, the article concludes with a list of basic principles that should be adopted in any computer science publishing standard. These principles would contribute to the reliability and scientific nature of academic publications in computer science and would allow for more straightforward discourse in future publications.

[Quality assurance in occupational health services].

PubMed

Michalak, J

1996-01-01

The general conditions influencing the quality assurance and audit in Polish occupational health services are presented. The factors promoting or hampering the implementation of quality assurance and audits are also discussed. The major influence on the transformation of Polish occupational health services in exorted by employers who are committed to cover the costs of the obligatory prophylactic examination of their employees. This is the factor which also contributes to the improvement of quality if services. The definitions of the most important terms are reviewed to highlight their accordance with the needs of occupational health services in Poland. The examples of audit are presented and the elements of selected methods of auditing are suggested to be adopted in Poland.

[Uncovering an undetected homicide by exhumation].

PubMed

Grellner, Wolfgang

2009-01-01

The problems of postmortem examinations and the associated dark figure of undetected homicides are well known and have been repeatedly discussed in Germany. The article deals with the case of a 73-year-old woman whose death was initially certified as being natural ("sudden cardiac death"). When secondary suspicious circumstances turned up, an exhumation was ordered three weeks after the burial. At autopsy, signs of multiple blunt force to the occiput, the thorax and the upper extremities as well as compression of the neck were found. The findings proved foreign intervention and suggested death due to suffocation. In the court trial, the accused pleaded an accidental event (fall down stairs). He was sentenced to life imprisonment for murder. The presented case of homicide remained undetected at first, as due to the deceased's advanced age a natural death had been falsely assumed. An obviously very superficial external postmortem examination by the physician was probably the main reason for the misjudgement. The factors "advanced age" and "homicide leaving few external traces and no visible injuries" seem to present special problems and essentially contribute to the dark figure of undetected homicides. Physicians performing postmortem examinations and the general public should be made aware of the problem by regular further education and discussion.

World Economic Growth and Oil: a Producers' Perspective

NASA Astrophysics Data System (ADS)

Shihab-Eldin, Adnan

2014-07-01

This paper examines the following assertions: * A high share of oil price in GDP limits economic growth, * Oil Price shocks trigger recession, * These effects will be escalated by peaked oil supply and rising developing world demand and together with increasing contributions to climate change will result in a global emergency. The role of energy in societal development and economic growth, from primitive man through the industrial revolution and the oil age to the present and the evolution of energy intensity are described. The principle role of oil as a transport fuel and the possibilities of alternatives are examined. It is concluded that oil dependence will continue for the foreseeable future. The history of the industry, market behavior and its economic effects are presented to establish precedent and the assertions are then examined. It is shown that rising oil prices are an unavoidable consequence of economic growth, that they have stimulated efficient minimum functional use and made more difficult conventional and unconventional sources economic. It is then argued that potentially these additional resources eliminate the possibility of supply shortage and that diversification of supply lessens the possibility of shock, together rendering a global emergency less likely than could have been previously envisaged.

Parental attachment style: examination of links with parent secure base provision and adolescent secure base use.

PubMed

Jones, Jason D; Cassidy, Jude

2014-01-01

The secure base construct represents one of attachment theory's most important contributions to our understanding of parent-child relationships and child development. The present study represents the first examination of how parents' self-reported attachment styles relate to parental secure base provision and adolescent (mean age = 16.6 years, SE = .59) secure base use during an observed parent-adolescent interaction. Further, the present study is the first to examine how fathers', as well as mothers', attachment styles relate to observed behavior in a parent-child interaction. At the bivariate level, maternal avoidance, but not anxiety, was negatively associated with observed adolescent secure base use. In addition, path analysis revealed that maternal avoidance was indirectly related to less adolescent secure base use through mothers' self-reported hostile behavior toward their adolescents and through adolescents' less positive perceptions of their mothers. Further, paternal anxiety, but not avoidance, was indirectly related to less adolescent secure base use through fathers' self-reported hostile behavior toward their adolescents. No significant findings emerged in relation to parental secure base provision. We discuss these results in the context of attachment theory and suggest directions for future research.

Management of the failed posterior/multidirectional instability patient.

PubMed

Forsythe, Brian; Ghodadra, Neil; Romeo, Anthony A; Provencher, Matthew T

2010-09-01

Although the results of operative treatment of posterior and multidirectional instability (P-MDI) of the shoulder have improved, they are not as reliable as those treated for anterior instability of the shoulder. This may be attributed to the complexities in the classification, etiology, and physical examination of a patient with suspected posterior and multidirectional instability. Failure to address the primary and concurrent lesion adequately and the development of pain and/or stiffness are contributing factors to the failure of P-MDI procedures. Other pitfalls include errors in history and physical examination, failure to recognize concomitant pathology, and problems with the surgical technique or implant failure. Patulous capsular tissues and glenoid version also play in role management of failed P-MDI patients. With an improved understanding of pertinent clinical complaints and physical examination findings and the advent of arthroscopic techniques and improved implants, successful strategies for the nonoperative and operative management of the patient after a failed posterior or multidirectional instability surgery may be elucidated. This article highlights the common presentation, physical findings, and radiographic workup in a patient that presents after a failed P-MDI repair and offers strategies for revision surgical repair.

The Role of Parental Perceptions of Tic Frequency and Intensity in Predicting Tic-Related Functional Impairment in Youth with Chronic Tic Disorders

PubMed Central

Espil, Flint M.; Capriotti, Matthew R.; Conelea, Christine A.; Woods, Douglas W.

2014-01-01

Tic severity is composed of several dimensions. Tic frequency and intensity are two such dimensions, but little empirical data exist regarding their relative contributions to functional impairment in those with Chronic Tic Disorders (CTD). The present study examined the relative contributions of these dimensions in predicting tic-related impairment across several psychosocial domains. Using data collected from parents of youth with CTD, multivariate regression analyses revealed that both tic frequency and intensity predicted tic-related impairment in several areas; including family and peer relationships, school interference, and social endeavors, even when controlling for the presence of comorbid anxiety symptoms and Attention Deficit Hyperactivity Disorder diagnostic status. Results showed that tic intensity predicted more variance across more domains than tic frequency. PMID:24395287

Nursing student medication errors: a retrospective review.

PubMed

Harding, Lorill; Petrick, Teresa

2008-01-01

This article presents the findings of a retrospective review of medication errors made and reported by nursing students in a 4-year baccalaureate program. Data were examined in relation to the semester of the program, kind of error according to the rights of medication administration, and contributing factors. Three categories of contributing factors were identified: rights violations, system factors, and knowledge and understanding. It became apparent that system factors, or the context in which medication administration takes place, are not fully considered when students are taught about medication administration. Teaching strategies need to account for the dynamic complexity of this process and incorporate experiential knowledge. This review raised several important questions about how this information guides our practice as educators in the clinical and classroom settings and how we can work collaboratively with practice partners to influence change and increase patient safety.

Assessment of fluctuating pressure gradient using acceleration spectra in near wall flows

NASA Astrophysics Data System (ADS)

Cadel, Daniel; Lowe, K. Todd

2015-11-01

Separation of contributions to the fluctuating acceleration from pressure gradient fluctuations and viscous shear fluctuations in the frequency domain is examined in a turbulent boundary layer. Past work leveraging turbulent accelerations for pressure gradient measurements has neglected the viscous shear term from the momentum equation--an invalid assumption in the case of near wall flows. The present study seeks to account for the influence of the viscous shear term and spectrally reject its contribution, which is thought to be concentrated at higher frequencies. Spectra of velocity and acceleration fluctuations in a flat plate, zero pressure gradient turbulent boundary layer at a momentum thickness Reynolds number of 7500 are measured using a spatially resolving three-component laser Doppler velocimeter. This canonical case data is applied for validation of the spectral approach for future application in more complex aerodynamic flows.

Ethical management of food systems: plant based diet as a holistic approach.

PubMed

Chiu, Tina H T; Lin, Chin-Lon

2009-01-01

While improvement in agricultural technology had enabled the production of abundant food, it has thus far failed to eliminate hunger. Malnutrition is expected to reach an all time high. Evidences have suggested that animal based diet has put immense pressure on the already fragile food system, contributing to problems in terms of global food security, health security, and environmental sustainability. Plant based dietary approaches may therefore, target some of these problems from the roots, and may be a solution to improving ethical issues and equity in the current food system. This paper examines how meat production and consumption contributed to the current crises in the food system through the lens of ethics--the moral compass--to find directions on how the present generation should eat, and how the food system could be maintained for a better future.

Operating frequencies for educational satellite services

NASA Technical Reports Server (NTRS)

Singh, J. P.

1971-01-01

The factors affecting the choice of transmission frequencies are identified. These include international radio regulations, natural environment, man-made environment, hardware considerations, and interconnection and spectrum space considerations. An analysis is presented of international radio regulations with emphasis on 1963 EARC and 1971 WARC frequency allocations, powerflux density restrictions, and resolutions concerning introduction of broadcasting-satellite systems. Natural-environmental effects were divided into two categories: (1) those due to transionospheric propagation, and (2) those that can be credited to the earth's atmosphere and its constituents. The frequency dependence of the signal attenuation, signal distortion, and contributions to system noise temperature due to environmental effects are discussed, and comparisons were made for frequencies of interest. Man-made environmental effects were examined in terms of various sharing limitations as well as the indigenous noise contribution to the overall system noise.

B cell function in the immune response to helminths

PubMed Central

Harris, Nicola

2010-01-01

Similar T helper (Th)2-type immune responses are generated against different helminths parasites, but the mechanisms that initiate Th2 immunity, and the specific immune components that mediate protection against these parasites, can vary greatly. B cells are increasingly recognized as important during the Th2-type immune response to helminths, and B cell activation might be a target for effective vaccine development. Antibody production is a function of B cells during helminth infection and understanding how polyclonal and antigen-specific antibodies contribute should provide important insights into how protective immunity develops. In addition, B cells might also contribute to the host response against helminths through antibody-independent functions including, antigen-presentation, as well as regulatory and effector activity. In this review, we examine the role of B cells during Th2-type immune response to these multicellular parasites. PMID:21159556

The stigmatisation of abortion: a qualitative analysis of print media in Great Britain in 2010

PubMed Central

Purcell, Carrie; Hilton, Shona; McDaid, Lisa

2014-01-01

The media play a significant part in shaping public perceptions of health issues, and abortion attracts continued media interest. Detailed examination of media constructions of abortion may help to identify emerging public discourse. Qualitative content analysis was used to examine if and how the print media in contributes to the stigmatisation of abortion. Articles from seven British and five Scottish national newspapers from 2010 were analysed for overall framings of abortion and emergent themes, including potentially stigmatising discursive constructs and language. Abortion was found to be presented using predominantly negative language and discursive associations as ‘risky’, and in association with other ‘discredited’ social practices. Key perspectives were found to be absent or marginalised, including those of women who have sought abortion. Few articles framed abortion as a positive and legitimate choice. Negative media representations of abortion contribute to the stigmatisation of the procedure and of women who have it, and reflect a discrediting of women's reproductive decision-making. There is a need to challenge the notion that abortion stigma is inevitable, and to encourage positive framings of abortion in the media and other public discourse. PMID:25115952

A Comparison of the Near-Infrared Spectral Features of Early-Type Galaxies in the Virgo and Coma Clusters

NASA Astrophysics Data System (ADS)

Houdashelt, M. L.

1992-05-01

Initial results are presented from an examination of near-infrared spectra (6800 - 9200 Angstroms) of 34 early-type galaxies - 17 in the Virgo cluster, 10 in the Coma cluster and seven field members. It has previously been speculated that E/S0 galaxies of similar luminosity in the Virgo and Coma clusters have different red stellar populations. To explore this possibility, pseudo-equivalent widths of a number of near-IR spectral features have been measured. The important features studied include the TiO bands near 7100, 7890, 8197, 8500 and 8950 Angstroms, which are mainly produced by the late-type stars whose flux contributes only about 10-20\\ the near-IR. The strengths of the Ca triplet (8498, 8542, 8662 Angstroms) and Na I doublet (8183, 8195 Angstroms) are also measured, since these features are affected by the relative contribution of dwarf stars to the red light. Although the main focus of this work is the search for spectral differences among the Coma, Virgo and field E/S0 populations, each subgroup of galaxies (and the sample as a whole) are also examined for correlations among the feature strengths, galaxy color and luminosity.

Relational dimension of irritability following traumatic brain injury: a qualitative analysis.

PubMed

Hammond, Flora M; Davis, Christine S; Cook, James R; Philbrick, Peggy; Hirsch, Mark A

2012-01-01

Irritability is a common long-term sequelae of traumatic brain injury (TBI). In a prior study on TBI irritability, relational interactions were one of four dimensions of irritability occurrence and precipitation. This present analysis examines these same data in greater detail. Fifty focus group transcripts from a study on irritability were re-analysed to examine: (1) irritability in spousal relationships following TBI, (2) retrospective accounts of spousal interactions contributing to irritability and (3) impact of irritability on marital relationships. Grounded Theory was used to develop themes, metacodes and theories. Several theories emerged regarding irritability with respect to spousal relations, all based on the overarching theory that irritability in people with TBI has a strong relational component involved in triggering, experiencing and preventing irritability. Sub-theories supporting this include: (1) irritability breeds further irritability, (2) spousal responses can trigger irritability among persons with TBI and vice versa, (3) difficulties making emotional connections may incite negative interactions, (4) expectations of others may contribute to irritable behaviour, and (5) communication breakdowns may provoke irritability. Irritability associated with TBI resides in the family system as well as the individual. In treating irritability one should include comprehensive assessment and assistance to improve interpersonal interactions.

Occupational Heat Stress and Kidney Health: From Farms to Factories.

PubMed

Nerbass, Fabiana B; Pecoits-Filho, Roberto; Clark, William F; Sontrop, Jessica M; McIntyre, Christopher W; Moist, Louise

2017-11-01

Millions of workers around the world are exposed to high temperatures, intense physical activity, and lax labor practices that do not allow for sufficient rehydration breaks. The extent and consequences of heat exposure in different occupational settings, countries, and cultural contexts is not well studied. We conducted an in-depth review to examine the known effects of occupational heat stress on the kidney. We also examined methods of heat-stress assessment, strategies for prevention and mitigation, and the economic consequences of occupational heat stress. Our descriptive review summarizes emerging evidence that extreme occupational heat stress combined with chronic dehydration may contribute to the development of CKD and ultimately kidney failure. Rising global temperatures, coupled with decreasing access to clean drinking water, may exacerbate the effects of heat exposure in both outdoor and indoor workers who are exposed to chronic heat stress and recurrent dehydration. These changes create an urgent need for health researchers and industry to identify work practices that contribute to heat-stress nephropathy, and to test targeted, robust prevention and mitigation strategies. Preventing occupational heat stress presents a great challenge for a concerted multidisciplinary effort from employers, health authorities, engineers, researchers, and governments.

School-community learning partnerships for sustainability: Recommended best practice and reality

NASA Astrophysics Data System (ADS)

Wheeler, Leone; Guevara, Jose Roberto; Smith, Jodi-Anne

2018-05-01

Effective partnerships across different stakeholders are essential to the collaboration required for learning cities to contribute to sustainable development. Through partnerships, formal educational institutions, such as schools and universities, play a vital role in establishing and sustaining learning cities, often by facilitating the meaningful participation of different local community members. The research presented in this article examines the characteristics of effective school-community partnerships in the literature and compares it to the results of a three-year research study which examined 16 case studies of school-community partnerships in the state of Victoria in Australia. Using participatory action research, the researchers identified four approaches to implementing partnerships for sustainability, explored challenges to achieving an idealised partnership, and made recommendations for establishing successful partnership networks. The researchers propose that partnerships be viewed as a dynamic resource rather than merely a transactional arrangement that addresses the identified challenges of time, funding, skills and personnel. Furthermore, the use of "partnership brokers", such as local government or non-government organisations, is recommended to expand the current school-centred approach to partnerships. These insights aim to contribute to providing quality education and lifelong learning through partnerships - outcomes crucial for establishing and sustaining learning cities.

The Relative Contributions of Experiential Avoidance and Distress Tolerance to OC Symptoms.

PubMed

Blakey, Shannon M; Jacoby, Ryan J; Reuman, Lillian; Abramowitz, Jonathan S

2016-07-01

Obsessive beliefs account for substantial (but not all) obsessive-compulsive (OC) symptoms. Intolerance of internal experiences (IIE), which encompasses the constructs of experiential avoidance (EA) and distress tolerance (DT), refers to difficulty managing unwanted thoughts, emotions, and other internal states, and might add to current explanatory models. Although IIE appears to be conceptually relevant to obsessive-compulsive (OC) symptoms, scant research has examined this relationship empirically. The present study examined the relative contributions of EA and DT as predictors of OC symptom dimensions. A nonclinical sample (n = 496) completed self-report questionnaires measuring general distress, EA, DT and OC symptom dimensions. All variables of interest were significantly (all ps ≤ .001) correlated with one another, such that higher general distress, higher EA, and lower DT were associated with greater OC symptom severity for all symptom dimensions; however, only EA independently predicted obsessional symptoms, but not other OC symptom dimensions. One's willingness to endure (i.e. EA), rather than their ability to tolerate (i.e. DT) unpleasant internal experiences best predicts obsessional symptoms (i.e. obsessing) above and beyond general distress. Potential implications for understanding, assessing, and treating OC symptoms are discussed.

Technology efficacy in active prosthetic knees for transfemoral amputees: a quantitative evaluation.

PubMed

El-Sayed, Amr M; Hamzaid, Nur Azah; Abu Osman, Noor Azuan

2014-01-01

Several studies have presented technological ensembles of active knee systems for transfemoral prosthesis. Other studies have examined the amputees' gait performance while wearing a specific active prosthesis. This paper combined both insights, that is, a technical examination of the components used, with an evaluation of how these improved the gait of respective users. This study aims to offer a quantitative understanding of the potential enhancement derived from strategic integration of core elements in developing an effective device. The study systematically discussed the current technology in active transfemoral prosthesis with respect to its functional walking performance amongst above-knee amputee users, to evaluate the system's efficacy in producing close-to-normal user performance. The performances of its actuator, sensory system, and control technique that are incorporated in each reported system were evaluated separately and numerical comparisons were conducted based on the percentage of amputees' gait deviation from normal gait profile points. The results identified particular components that contributed closest to normal gait parameters. However, the conclusion is limitedly extendable due to the small number of studies. Thus, more clinical validation of the active prosthetic knee technology is needed to better understand the extent of contribution of each component to the most functional development.

Motivational indicators of protective behaviour in response to urban water shortage threat

NASA Astrophysics Data System (ADS)

Mankad, Aditi; Greenhill, Murni; Tucker, David; Tapsuwan, Sorada

2013-05-01

The present study examined the role of protection motivation variables in predicting rainwater tank adoption among urban householders. A regression analysis found that subjective knowledge, threat appraisal, response efficacy, response costs, subjective norms and social norms significantly predicted adaptive behavioural intentions (F(6, 399) = 50.769, p < .001, Cohen's f2 = .763). The model accounted for 43% of the variance in intentions to install a rainwater tank as a protective measure against future water shortages. Results further indicated that several variables uniquely contributed to the prediction of rainwater tank adoption (listed in order of relative contribution: response efficacy, threat appraisal, response costs, subjective knowledge and subjective norms). This suggests that people who perceive there is a real water shortage threat, and believe that rainwater tanks are effective in relieving the threat and require minimal or manageable effort to obtain, are more likely to install a tank on their property as a protective measure. Implications of these results are discussed from a research and policy perspective. Recommendations for future motivational research in the area of urban decentralised system acceptance and adoption are presented.

Determinants of passive smoking in children in Edinburgh, Scotland.

PubMed Central

Jarvis, M J; Strachan, D P; Feyerabend, C

1992-01-01

OBJECTIVES. Using saliva cotinine as a quantitative marker, we examined the contribution of factors other than parental smoking to children's passive exposure to tobacco smoke. METHODS. Saliva specimens from a random sample of 734 7-year-old schoolchildren in Edinburgh, Scotland, were analyzed for cotinine. Their parents completed a questionnaire covering smoking habits and conditions in the home. RESULTS. A number of independent predictors of cotinine were identified in addition to the main one of smoking by household members. These predictors included home ownership, social class, day of the week, season of the year, number of parents present, crowding in the home, the number of children in the household, and sex. Cotinine was higher in children from less advantaged backgrounds, during winter, on Mondays, in girls, and when fewer other children were present. The effects were similar between children from nonsmoking and smoking homes. CONCLUSIONS. Questionnaire measures of parental smoking are insufficient to fully characterize young children's exposure to passive smoking. Because socioeconomic variables contribute to measured exposure, passive-smoking studies that treat class as a confounder and control for it may be overcontrolling. PMID:1503162

Comprehensive Care Plan Development Using Resident Assessment Instrument Framework: Past, Present, and Future Practices

PubMed Central

Dellefield, Mary Ellen; Corazzini, Kirsten

2015-01-01

Development of the comprehensive care plan (CCP) is a requirement for nursing homes participating in the federal Medicare and Medicaid programs, referred to as skilled nursing facilities. The plan must be developed within the context of the comprehensive interdisciplinary assessment framework—the Resident Assessment Instrument (RAI). Consistent compliance with this requirement has been difficult to achieve. To improve the quality of CCP development within this framework, an increased understanding of complex factors contributing to inconsistent compliance is required. In this commentary, we examine the history of the comprehensive care plan; its development within the RAI framework; linkages between the RAI and registered nurse staffing; empirical evidence of the CCP’s efficacy; and the limitations of extant standards of practices in CCP development. Because of the registered nurse’s educational preparation, professional practice standards, and licensure obligations, the essential contributions of professional nurses in CCP development are emphasized. Recommendations for evidence-based micro and macro level practice changes with the potential to improve the quality of CCP development and regulatory compliance are presented. Suggestions for future research are given. PMID:27417811

Effects of neutron irradiation on pinning force scaling in state-of-the-art Nb3Sn wires

NASA Astrophysics Data System (ADS)

Baumgartner, T.; Eisterer, M.; Weber, H. W.; Flükiger, R.; Scheuerlein, C.; Bottura, L.

2014-01-01

We present an extensive irradiation study involving five state-of-the-art Nb3Sn wires which were subjected to sequential neutron irradiation up to a fast neutron fluence of 1.6 × 1022 m-2 (E > 0.1 MeV). The volume pinning force of short wire samples was assessed in the temperature range from 4.2 to 15 K in applied fields of up to 7 T by means of SQUID magnetometry in the unirradiated state and after each irradiation step. Pinning force scaling computations revealed that the exponents in the pinning force function differ significantly from those expected for pure grain boundary pinning, and that fast neutron irradiation causes a substantial change in the functional dependence of the volume pinning force. A model is presented, which describes the pinning force function of irradiated wires using a two-component ansatz involving a point-pinning contribution stemming from radiation induced pinning centers. The dependence of this point-pinning contribution on fast neutron fluence appears to be a universal function for all examined wire types.

Selective attention and the three-process memory model for the interpretation of verbal free recall in amyotrophic lateral sclerosis.

PubMed

Christidi, Foteini; Zalonis, Ioannis; Smyrnis, Nikolaos; Evdokimidis, Ioannis

2012-09-01

The present study investigates selective attention and verbal free recall in amyotrophic lateral sclerosis (ALS) and examines the contribution of selective attention, encoding, consolidation, and retrieval memory processes to patients' verbal free recall. We examined 22 non-demented patients with sporadic ALS and 22 demographically related controls using Stroop Neuropsychological Screening Test (SNST; selective attention) and Rey Auditory Verbal Learning Test (RAVLT; immediate & delayed verbal free recall). The item-specific deficit approach (ISDA) was applied to RAVLT to evaluate encoding, consolidation, and retrieval difficulties. ALS patients performed worse than controls on SNST (p < .001) and RAVLT immediate and delayed recall (p < .001) and showed deficient encoding (p = .001) and consolidation (p = .002) but not retrieval (p = .405). Hierarchical regression analysis revealed that SNST and ISDA indices accounted for: (a) 91.1% of the variance in RAVLT immediate recall, with encoding (p = .016), consolidation (p < .001), and retrieval (p = .032) significantly contributing to the overall model and the SNST alone accounting for 41.6%; and (b) 85.2% of the variance in RAVLT delayed recall, with consolidation (p < .001) and retrieval (p = .008) significantly contributing to the overall model and the SNST alone accounting for 39.8%. Thus, selective attention, encoding, and consolidation, and to a lesser extent of retrieval, influenced both immediate and delayed verbal free recall. Concluding, selective attention and the memory processes of encoding, consolidation, and retrieval should be considered while interpreting patients' impaired free recall. (JINS, 2012, 18, 1-10).

Burnout and work environments of public health nurses involved in mental health care.

PubMed

Imai, H; Nakao, H; Tsuchiya, M; Kuroda, Y; Katoh, T

2004-09-01

(1) To examine whether prevalence of burnout is higher among community psychiatric nurses working under recently introduced job specific work systems than among public health nurses (PHNs) engaged in other public health services. (2) To identify work environment factors potentially contributing to burnout. Two groups were examined. The psychiatric group comprised 525 PHNs primarily engaged in public mental health services at public health centres (PHCs) that had adopted the job specific work system. The control group comprised 525 PHNs primarily engaged in other health services. Pines' Burnout Scale was used to measure burnout. Respondents were classified by burnout score into three groups: A (mentally stable, no burnout); B (positive signs, risk of burnout); and C (burnout present, action required). Groups B and C were considered representative of "burnout". A questionnaire was also prepared to investigate systems for supporting PHNs working at PHCs and to define emergency mental health service factors contributing to burnout. Final respondents comprised 785 PHNs. Prevalence of burnout was significantly higher in the psychiatric group (59.2%) than in the control group (51.5%). Responses indicating lack of job control and increased annual frequency of emergency overtime services were significantly correlated with prevalence of burnout in the psychiatric group, but not in the control group. Prevalence of burnout is significantly higher for community psychiatric nurses than for PHNs engaged in other services. Overwork in emergency services and lack of job control appear to represent work environment factors contributing to burnout.

Contribution of thermal and nonthermal factors to the regulation of body temperature in humans.

PubMed

Mekjavic, Igor B; Eiken, Ola

2006-06-01

The set point has been used to define the regulated level of body temperature, suggesting that displacements of core temperature from the set point initiate heat production (HP) and heat loss (HL) responses. Human and animal experiments have demonstrated that the responses of sweating and shivering do not coincide at a set point but rather establish a thermoeffector threshold zone. Neurophysiological studies have demonstrated that the sensor-to-effector pathways for HP and HL overlap and, in fact, mutually inhibit each other. This reciprocal inhibition theory, presumably reflecting the manner in which thermal factors contribute to homeothermy in humans, does not incorporate the effect of nonthermal factors on temperature regulation. The present review examines the actions of these nonthermal factors within the context of neuronal models of temperature regulation, suggesting that examination of these factors may provide further insights into the nature of temperature regulation. It is concluded that, although there is no evidence to doubt the existence of the HP and HL pathways reciprocally inhibiting one another, it appears that such a mechanism is of little consequence when comparing the effects of nonthermal factors on the thermoregulatory system, since most of these factors seem to exert their influence in the region after the reciprocal cross-inhibition. At any given moment, both thermal and several nonthermal factors will be acting on the thermoregulatory system. It may, therefore, not be appropriate to dismiss the contribution of either when discussing the regulation of body temperature in humans.

Centuries of thermal sea-level rise due to anthropogenic emissions of short-lived greenhouse gases

PubMed Central

Zickfeld, Kirsten

2017-01-01

Mitigation of anthropogenic greenhouse gases with short lifetimes (order of a year to decades) can contribute to limiting warming, but less attention has been paid to their impacts on longer-term sea-level rise. We show that short-lived greenhouse gases contribute to sea-level rise through thermal expansion (TSLR) over much longer time scales than their atmospheric lifetimes. For example, at least half of the TSLR due to increases in methane is expected to remain present for more than 200 y, even if anthropogenic emissions cease altogether, despite the 10-y atmospheric lifetime of this gas. Chlorofluorocarbons and hydrochlorofluorocarbons have already been phased out under the Montreal Protocol due to concerns about ozone depletion and provide an illustration of how emission reductions avoid multiple centuries of future TSLR. We examine the “world avoided” by the Montreal Protocol by showing that if these gases had instead been eliminated in 2050, additional TSLR of up to about 14 cm would be expected in the 21st century, with continuing contributions lasting more than 500 y. Emissions of the hydrofluorocarbon substitutes in the next half-century would also contribute to centuries of future TSLR. Consideration of the time scales of reversibility of TSLR due to short-lived substances provides insights into physical processes: sea-level rise is often assumed to follow air temperature, but this assumption holds only for TSLR when temperatures are increasing. We present a more complete formulation that is accurate even when atmospheric temperatures are stable or decreasing due to reductions in short-lived gases or net radiative forcing. PMID:28069937

Centuries of thermal sea-level rise due to anthropogenic emissions of short-lived greenhouse gases.

PubMed

Zickfeld, Kirsten; Solomon, Susan; Gilford, Daniel M

2017-01-24

Mitigation of anthropogenic greenhouse gases with short lifetimes (order of a year to decades) can contribute to limiting warming, but less attention has been paid to their impacts on longer-term sea-level rise. We show that short-lived greenhouse gases contribute to sea-level rise through thermal expansion (TSLR) over much longer time scales than their atmospheric lifetimes. For example, at least half of the TSLR due to increases in methane is expected to remain present for more than 200 y, even if anthropogenic emissions cease altogether, despite the 10-y atmospheric lifetime of this gas. Chlorofluorocarbons and hydrochlorofluorocarbons have already been phased out under the Montreal Protocol due to concerns about ozone depletion and provide an illustration of how emission reductions avoid multiple centuries of future TSLR. We examine the "world avoided" by the Montreal Protocol by showing that if these gases had instead been eliminated in 2050, additional TSLR of up to about 14 cm would be expected in the 21st century, with continuing contributions lasting more than 500 y. Emissions of the hydrofluorocarbon substitutes in the next half-century would also contribute to centuries of future TSLR. Consideration of the time scales of reversibility of TSLR due to short-lived substances provides insights into physical processes: sea-level rise is often assumed to follow air temperature, but this assumption holds only for TSLR when temperatures are increasing. We present a more complete formulation that is accurate even when atmospheric temperatures are stable or decreasing due to reductions in short-lived gases or net radiative forcing.

The relation between emotional awareness and hallucinations and delusions in acute psychiatric inpatients.

PubMed

Serper, Mark; Berenbaum, Howard

2008-04-01

Although negative affect has been frequently implicated in the formation of cognitive and perceptual disturbances ranging from odd perceptions and beliefs to delusions and hallucinations it represents only one of the many aspects of emotional disturbances that may contribute to psychopathology. Surprisingly, no past research has examined in a psychiatric sample whether levels of cognitive-perceptual symptoms are associated with levels of emotional awareness (i.e., attention to emotion and clarity of emotion). In the present study we examined, in an acute psychiatric inpatient sample, the relations between emotional awareness and the severity of delusions and hallucinations. Two groups were included: 34 schizophrenia and schizophrenia spectrum disordered inpatients and 30 mood and substance use disordered inpatients. Patients were assessed on emotional awareness (attention to emotion and emotional clarity) and severity of psychiatric symptomatology. We found that lower levels of emotional clarity were associated with more severe hallucination ratings in both groups of patients. Among schizophrenia spectrum patients, lower levels of attention to emotion were also associated with more severe hallucination ratings. Among mood/substance disorder participants, higher levels of attention to emotion were associated with more severe delusion ratings, whereas the opposite pattern was found among schizophrenia spectrum participants. Consistent with the results of past research using college and community samples, we found that diminished emotional clarity is associated with elevated levels of hallucinations in both mood disorder/substance abuse and schizophrenia spectrum inpatients. We also found that greater attention to emotion was associated with more severe delusions, though only among the mood disorder/substance use group. The present research findings support the role of emotional awareness in hallucination formation and suggest that the factors that contribute to delusions in schizophrenia spectrum patients differ, in part, from the factors that contribute to delusion formation in other groups of individuals.

Form and motion make independent contributions to the response to biological motion in occipitotemporal cortex.

PubMed

Thompson, James C; Baccus, Wendy

2012-01-02

Psychophysical and computational studies have provided evidence that both form and motion cues are used in the perception of biological motion. However, neuroimaging and neurophysiological studies have suggested that the neural processing of actions in temporal cortex might rely on form cues alone. Here we examined the contribution of form and motion to the spatial pattern of response to biological motion in ventral and lateral occipitotemporal cortex, using functional magnetic resonance imaging (fMRI) and multivoxel pattern analysis (MVPA). We found that selectivity to intact versus scrambled biological motion in lateral occipitotemporal cortex was correlated with selectivity for bodies and not for motion. However, this appeared to be due to the fact that subtracting scrambled from intact biological motion removes any contribution of local motion cues. Instead, we found that form and motion made independent contributions to the spatial pattern of responses to biological motion in lateral occipitotemporal regions MT, MST, and the extrastriate body area. The motion contribution was position-dependent, and consistent with the representation of contra- and ipsilateral visual fields in MT and MST. In contrast, only form contributed to the response to biological motion in the fusiform body area, with a bias towards central versus peripheral presentation. These results indicate that the pattern of response to biological motion in ventral and lateral occipitotemporal cortex reflects the linear combination of responses to form and motion. Copyright © 2011 Elsevier Inc. All rights reserved.

Mathematics Anxiety and Statistics Anxiety. Shared but Also Unshared Components and Antagonistic Contributions to Performance in Statistics

PubMed Central

Paechter, Manuela; Macher, Daniel; Martskvishvili, Khatuna; Wimmer, Sigrid; Papousek, Ilona

2017-01-01

In many social science majors, e.g., psychology, students report high levels of statistics anxiety. However, these majors are often chosen by students who are less prone to mathematics and who might have experienced difficulties and unpleasant feelings in their mathematics courses at school. The present study investigates whether statistics anxiety is a genuine form of anxiety that impairs students' achievements or whether learners mainly transfer previous experiences in mathematics and their anxiety in mathematics to statistics. The relationship between mathematics anxiety and statistics anxiety, their relationship to learning behaviors and to performance in a statistics examination were investigated in a sample of 225 undergraduate psychology students (164 women, 61 men). Data were recorded at three points in time: At the beginning of term students' mathematics anxiety, general proneness to anxiety, school grades, and demographic data were assessed; 2 weeks before the end of term, they completed questionnaires on statistics anxiety and their learning behaviors. At the end of term, examination scores were recorded. Mathematics anxiety and statistics anxiety correlated highly but the comparison of different structural equation models showed that they had genuine and even antagonistic contributions to learning behaviors and performance in the examination. Surprisingly, mathematics anxiety was positively related to performance. It might be that students realized over the course of their first term that knowledge and skills in higher secondary education mathematics are not sufficient to be successful in statistics. Part of mathematics anxiety may then have strengthened positive extrinsic effort motivation by the intention to avoid failure and may have led to higher effort for the exam preparation. However, via statistics anxiety mathematics anxiety also had a negative contribution to performance. Statistics anxiety led to higher procrastination in the structural equation model and, therefore, contributed indirectly and negatively to performance. Furthermore, it had a direct negative impact on performance (probably via increased tension and worry in the exam). The results of the study speak for shared but also unique components of statistics anxiety and mathematics anxiety. They are also important for instruction and give recommendations to learners as well as to instructors. PMID:28790938

Mathematics Anxiety and Statistics Anxiety. Shared but Also Unshared Components and Antagonistic Contributions to Performance in Statistics.

PubMed

Paechter, Manuela; Macher, Daniel; Martskvishvili, Khatuna; Wimmer, Sigrid; Papousek, Ilona

2017-01-01

In many social science majors, e.g., psychology, students report high levels of statistics anxiety. However, these majors are often chosen by students who are less prone to mathematics and who might have experienced difficulties and unpleasant feelings in their mathematics courses at school. The present study investigates whether statistics anxiety is a genuine form of anxiety that impairs students' achievements or whether learners mainly transfer previous experiences in mathematics and their anxiety in mathematics to statistics. The relationship between mathematics anxiety and statistics anxiety, their relationship to learning behaviors and to performance in a statistics examination were investigated in a sample of 225 undergraduate psychology students (164 women, 61 men). Data were recorded at three points in time: At the beginning of term students' mathematics anxiety, general proneness to anxiety, school grades, and demographic data were assessed; 2 weeks before the end of term, they completed questionnaires on statistics anxiety and their learning behaviors. At the end of term, examination scores were recorded. Mathematics anxiety and statistics anxiety correlated highly but the comparison of different structural equation models showed that they had genuine and even antagonistic contributions to learning behaviors and performance in the examination. Surprisingly, mathematics anxiety was positively related to performance. It might be that students realized over the course of their first term that knowledge and skills in higher secondary education mathematics are not sufficient to be successful in statistics. Part of mathematics anxiety may then have strengthened positive extrinsic effort motivation by the intention to avoid failure and may have led to higher effort for the exam preparation. However, via statistics anxiety mathematics anxiety also had a negative contribution to performance. Statistics anxiety led to higher procrastination in the structural equation model and, therefore, contributed indirectly and negatively to performance. Furthermore, it had a direct negative impact on performance (probably via increased tension and worry in the exam). The results of the study speak for shared but also unique components of statistics anxiety and mathematics anxiety. They are also important for instruction and give recommendations to learners as well as to instructors.

Examination of the placenta: medico-legal implications.

PubMed

Chang, Kenneth Tou-En

2014-10-01

Formal examination of the placenta may provide valuable information to the clinicians, family, and court of law in cases of adverse pregnancy outcome when litigation is initiated. Placental examination contributes towards the identification of specific intrinsic or secondary placental lesions, and understanding the nature of the intrauterine environment. This article provides an update of important placental pathologies that may contribute towards neurologic injury of the newborn child, and describes the role of placental findings in the adjudication of cases of adverse neonatal outcome. Copyright © 2014 Elsevier Ltd. All rights reserved.

Phonological similarity and orthographic similarity affect probed serial recall of Chinese characters.

PubMed

Lin, Yi-Chen; Chen, Hsiang-Yu; Lai, Yvonne C; Wu, Denise H

2015-04-01

The previous literature on working memory (WM) has indicated that verbal materials are dominantly retained in phonological representations, whereas other linguistic information (e.g., orthography, semantics) only contributes to verbal WM minimally, if not negligibly. Although accumulating evidence has suggested that multiple linguistic components jointly support verbal WM, the visual/orthographic contribution has rarely been addressed in alphabetic languages, possibly due to the difficulty of dissociating the effects of word forms from the effects of their pronunciations in relatively shallow orthography. In the present study, we examined whether the orthographic representations of Chinese characters support the retention of verbal materials in this language of deep orthography. In Experiments 1a and 2, we independently manipulated the phonological and orthographic similarity of horizontal and vertical characters, respectively, and found that participants' accuracy of probed serial recall was reduced by both similar pronunciations and shared phonetic radicals in the to-be-remembered stimuli. Moreover, Experiment 1b showed that only the effect of phonological, but not that of orthographic, similarity was affected by concurrent articulatory suppression. Taken together, the present results indicate the indispensable contribution of orthographic representations to verbal WM of Chinese characters, and suggest that the linguistic characteristics of a specific language not only determine long-term linguistic-processing mechanisms, but also delineate the organization of verbal WM for that language.

The contribution of inductive electric fields to particle energization in the inner magnetosphere

NASA Astrophysics Data System (ADS)

Ilie, R.; Toth, G.; Liemohn, M. W.; Chan, A. A.

2017-12-01

Assessing the relative contribution of potential versus inductive electric fields at the energization of the hot ion population in the inner magnetosphere is only possible by thorough examination of the time varying magnetic field and current systems using global modeling of the entire system. We present here a method to calculate the inductive and potential components of electric field in the entire magnetosphere region. This method is based on the Helmholtz vector decomposition of the motional electric field as calculated by the BATS-R-US model, and is subject to boundary conditions. This approach removes the need to trace independent field lines and lifts the assumption that the magnetic field lines can be treated as frozen in a stationary ionosphere. In order to quantify the relative contributions of potential and inductive electric fields at driving plasma sheet ions into the inner magnetosphere, we apply this method for the March 17th, 2013 geomagnetic storm. We present here the consequences of slow continuous changes in the geomagnetic field as well as the strong tail dipolarizations on the distortion of the near-Earth magnetic field and current systems. Our findings indicate that the inductive component of the electric field is comparable, and even higher at times than the potential component, suggesting that the electric field induced by the time varying magnetic field plays a crucial role in the overall particle energization in the inner magnetosphere.