The Role of Expectations in Game-Based Training.

PubMed

Kreutzer, Christine; Bowers, Clint

2015-01-01

The present work seeks to examine the importance of expectancies in computer-mediated treatment and training programs. Two studies examining the role of patient and trainee expectations are presented. Study 1 investigated how expectations of a training game for military surgical teams influence training performance outcomes. The findings have implications for the administration of game-based treatment and training systems. Study 2 explored how pre-treatment expectancies influence post-treatment reactions to a game-based intervention for post-traumatic stress disorder (PTSD). Results indicate that self-efficacy plays a mediating role in the relationship between expectancies and reactions. Together, these studies offer implications regarding the critical role of attitudes towards game-based training and treatment mechanisms.

Understanding Group/Party Affiliation Using Social Networks and Agent-Based Modeling

NASA Technical Reports Server (NTRS)

Campbell, Kenyth

2012-01-01

The dynamics of group affiliation and group dispersion is a concept that is most often studied in order for political candidates to better understand the most efficient way to conduct their campaigns. While political campaigning in the United States is a very hot topic that most politicians analyze and study, the concept of group/party affiliation presents its own area of study that producers very interesting results. One tool for examining party affiliation on a large scale is agent-based modeling (ABM), a paradigm in the modeling and simulation (M&S) field perfectly suited for aggregating individual behaviors to observe large swaths of a population. For this study agent based modeling was used in order to look at a community of agents and determine what factors can affect the group/party affiliation patterns that are present. In the agent-based model that was used for this experiment many factors were present but two main factors were used to determine the results. The results of this study show that it is possible to use agent-based modeling to explore group/party affiliation and construct a model that can mimic real world events. More importantly, the model in the study allows for the results found in a smaller community to be translated into larger experiments to determine if the results will remain present on a much larger scale.

Family-Based Treatment of a 17-Year-Old Twin Presenting with Emerging Anorexia Nervosa: A Case Study Using the "Maudsley Method"

ERIC Educational Resources Information Center

Loeb, Katharine L.; Hirsch, Alicia M.; Greif, Rebecca; Hildebrandt, Thomas B.

2009-01-01

This article describes the successful application of family-based treatment (FBT) for a 17-year-old identical twin presenting with a 4-month history of clinically significant symptoms of anorexia nervosa (AN). FBT is a manualized treatment that has been studied in randomized controlled trials for adolescents with AN. This case study illustrates…

Modeling noisy resonant system response

NASA Astrophysics Data System (ADS)

Weber, Patrick Thomas; Walrath, David Edwin

2017-02-01

In this paper, a theory-based model replicating empirical acoustic resonant signals is presented and studied to understand sources of noise present in acoustic signals. Statistical properties of empirical signals are quantified and a noise amplitude parameter, which models frequency and amplitude-based noise, is created, defined, and presented. This theory-driven model isolates each phenomenon and allows for parameters to be independently studied. Using seven independent degrees of freedom, this model will accurately reproduce qualitative and quantitative properties measured from laboratory data. Results are presented and demonstrate success in replicating qualitative and quantitative properties of experimental data.

Family-based treatment of a 17-year-old twin presenting with emerging anorexia nervosa: a case study using the "Maudsley method".

PubMed

Loeb, Katharine L; Hirsch, Alicia M; Greif, Rebecca; Hildebrandt, Thomas B

2009-01-01

This article describes the successful application of family-based treatment (FBT) for a 17-year-old identical twin presenting with a 4-month history of clinically significant symptoms of anorexia nervosa (AN). FBT is a manualized treatment that has been studied in randomized controlled trials for adolescents with AN. This case study illustrates the administration of this evidence-based intervention in a clinical setting, highlighting how the best available research was used to make clinical decisions at each stage of treatment delivery.

Experimental Study of Ballistic-Missile Base Heating with Operating Rocket

NASA Technical Reports Server (NTRS)

Nettle, J. Cary

1958-01-01

A rocket of the 1000-pound-thrust class using liquid oxygen and JP-4 fuel as propellant was installed in the Lewis 8- by 6-foot tunnel to permit a controlled study of some of the factors affecting the heating of a rocket-missile base. Temperatures measured in the base region are presented from findings of three motor extension lengths relative to the base. Data are also presented for two combustion efficiency levels in the rocket motor. Temperature as high as 1200 F was measured in the base region because of the ignition of burnable rocket gases. combustibles that are dumped into the base by accessories seriously aggravate the base-burning temperature rise.

Assessment of School-Based Management. [Volume I: Findings and Conclusions.] Studies of Education Reform.

ERIC Educational Resources Information Center

Wohlstetter, Priscilla; Mohrman, Susan Albers

This document presents findings of the Assessment of School-Based Management Study, which identified the conditions in schools that promote high performance through school-based management (SBM). The study's conceptual framework was based on Edward E. Lawler's (1986) model. The high-involvement framework posits that four resources must spread…

Description of alpha-nucleus interaction cross sections for cosmic ray shielding studies

NASA Technical Reports Server (NTRS)

Cucinotta, Francis A.; Townsend, Lawrence W.; Wilson, John W.

1993-01-01

Nuclear interactions of high-energy alpha particles with target nuclei important for cosmic ray studies are discussed. Models for elastic, quasi-elastic, and breakup reactions are presented and compared with experimental data. Energy-dependent interaction cross sections and secondary spectra are presented based on theoretical models and the limited experimental data base.

Globalization and Multilingualism: Case Studies of Indigenous Culture-Based Education from the Indian Sub-Continent and Their Implications

ERIC Educational Resources Information Center

Singh, Navin Kumar

2013-01-01

This paper presents some of the major program initiatives honoring Indigenous knowledge, culture, heritage, arts, and skills through curricular reforms and culturally appropriate educational practices on the Indian sub-continent. It presents case studies of Indigenous culture-based education, with reference to mother tongue and multicultural…

Community-Based Field Experiences in Teacher Education: Possibilities for a Pedagogical Third Space

ERIC Educational Resources Information Center

Hallman, Heidi L.

2012-01-01

The present article discusses the importance of community-based field experiences as a feature of teacher education programs. Through a qualitative case study, prospective teachers' work with homeless youth in an after-school initiative is presented. Framing community-based field experiences in teacher education through "third space" theory, the…

Middle-School Students' Understanding of the Equal Sign: The Books They Read Can't Help

ERIC Educational Resources Information Center

McNeil, Nicole M.; Grandau, Laura; Knuth, Eric J.; Alibali, Martha W.; Stephens, Ana C.; Hattikudur, Shanta; Krill, Daniel E.

2006-01-01

This study examined how 4 middle school textbook series (2 skills-based, 2 Standards-based) present equal signs. Equal signs were often presented in standard operations equals answer contexts (e.g., 3 + 4 = 7) and were rarely presented in nonstandard operations on both sides contexts (e.g., 3 + 4 = 5 + 2). They were, however, presented in other…

Delusional Ideation, Cognitive Processes and Crime Based Reasoning.

PubMed

Wilkinson, Dean J; Caulfield, Laura S

2017-08-01

Probabilistic reasoning biases have been widely associated with levels of delusional belief ideation (Galbraith, Manktelow, & Morris, 2010; Lincoln, Ziegler, Mehl, & Rief, 2010; Speechley, Whitman, & Woodward, 2010; White & Mansell, 2009), however, little research has focused on biases occurring during every day reasoning (Galbraith, Manktelow, & Morris, 2011), and moral and crime based reasoning (Wilkinson, Caulfield, & Jones, 2014; Wilkinson, Jones, & Caulfield, 2011). 235 participants were recruited across four experiments exploring crime based reasoning through different modalities and dual processing tasks. Study one explored delusional ideation when completing a visually presented crime based reasoning task. Study two explored the same task in an auditory presentation. Study three utilised a dual task paradigm to explore modality and executive functioning. Study four extended this paradigm to the auditory modality. The results indicated that modality and delusional ideation have a significant effect on individuals reasoning about violent and non-violent crime (p < .05), which could have implication for the presentation of evidence in applied setting such as the courtroom.

Delusional Ideation, Cognitive Processes and Crime Based Reasoning

PubMed Central

Wilkinson, Dean J.; Caulfield, Laura S.

2017-01-01

Probabilistic reasoning biases have been widely associated with levels of delusional belief ideation (Galbraith, Manktelow, & Morris, 2010; Lincoln, Ziegler, Mehl, & Rief, 2010; Speechley, Whitman, & Woodward, 2010; White & Mansell, 2009), however, little research has focused on biases occurring during every day reasoning (Galbraith, Manktelow, & Morris, 2011), and moral and crime based reasoning (Wilkinson, Caulfield, & Jones, 2014; Wilkinson, Jones, & Caulfield, 2011). 235 participants were recruited across four experiments exploring crime based reasoning through different modalities and dual processing tasks. Study one explored delusional ideation when completing a visually presented crime based reasoning task. Study two explored the same task in an auditory presentation. Study three utilised a dual task paradigm to explore modality and executive functioning. Study four extended this paradigm to the auditory modality. The results indicated that modality and delusional ideation have a significant effect on individuals reasoning about violent and non-violent crime (p < .05), which could have implication for the presentation of evidence in applied setting such as the courtroom. PMID:28904598

Integrating the Problem-Based Learning Approach into a Web-Based English Reading Course

ERIC Educational Resources Information Center

Lin, Lu-Fang

2018-01-01

This study incorporated the problem-based learning (PBL) approach into a web-based English reading course. The purpose of the study was to examine the impact of PBL on the participants' English reading comprehension (RC) and to explore the participants' perceptions of PBL. The present study conducted a comparison of two teaching methods. Two…

Convergence acceleration of the Proteus computer code with multigrid methods

NASA Technical Reports Server (NTRS)

Demuren, A. O.; Ibraheem, S. O.

1992-01-01

Presented here is the first part of a study to implement convergence acceleration techniques based on the multigrid concept in the Proteus computer code. A review is given of previous studies on the implementation of multigrid methods in computer codes for compressible flow analysis. Also presented is a detailed stability analysis of upwind and central-difference based numerical schemes for solving the Euler and Navier-Stokes equations. Results are given of a convergence study of the Proteus code on computational grids of different sizes. The results presented here form the foundation for the implementation of multigrid methods in the Proteus code.

Comorbid Psychiatric Disorders Associated with Asperger Syndrome/High-Functioning Autism: A Community- and Clinic-Based Study

ERIC Educational Resources Information Center

Mattila, Marja-Leena; Hurtig, Tuula; Haapsamo, Helena; Jussila, Katja; Kuusikko-Gauffin, Sanna; Kielinen, Marko; Linna, Sirkka-Liisa; Ebeling, Hanna; Bloigu, Risto; Joskitt, Leena; Pauls, David L.; Moilanen, Irma

2010-01-01

The present study identifies the prevalence and types of comorbid psychiatric disorders associated with Asperger syndrome (AS)/high-functioning autism (HFA) in a combined community- and clinic-based sample of fifty 9- to 16-year-old subjects using the Schedule for Affective Disorders and Schizophrenia for School-Age Children, Present and Lifetime…

Effect of Computer-Based Multimedia Presentation on Senior Secondary Students' Achievement in Agricultural Science

ERIC Educational Resources Information Center

Olori, Abiola Lateef; Igbosanu, Adekunle Olusegun

2016-01-01

The study was carried out to determine the use of computer-based multimedia presentation on Senior Secondary School Students' Achievement in Agricultural Science. The study was a quasi-experimental, pre-test, post-test control group research design type, using intact classes. A sample of eighty (80) Senior Secondary School One (SS II) students was…

The Use of Interactive Computer Animations Based on POE as a Presentation Tool in Primary Science Teaching

ERIC Educational Resources Information Center

Akpinar, Ercan

2014-01-01

This study investigates the effects of using interactive computer animations based on predict-observe-explain (POE) as a presentation tool on primary school students' understanding of the static electricity concepts. A quasi-experimental pre-test/post-test control group design was utilized in this study. The experiment group consisted of 30…

A Collective Case Study of Secondary Students' Model-Based Inquiry on Natural Selection through Programming in an Agent-Based Modeling Environment

ERIC Educational Resources Information Center

Xiang, Lin

2011-01-01

This is a collective case study seeking to develop detailed descriptions of how programming an agent-based simulation influences a group of 8th grade students' model-based inquiry (MBI) by examining students' agent-based programmable modeling (ABPM) processes and the learning outcomes. The context of the present study was a biology unit on…

Improving communication when seeking informed consent: a randomised controlled study of a computer-based method for providing information to prospective clinical trial participants.

PubMed

Karunaratne, Asuntha S; Korenman, Stanley G; Thomas, Samantha L; Myles, Paul S; Komesaroff, Paul A

2010-04-05

To assess the efficacy, with respect to participant understanding of information, of a computer-based approach to communication about complex, technical issues that commonly arise when seeking informed consent for clinical research trials. An open, randomised controlled study of 60 patients with diabetes mellitus, aged 27-70 years, recruited between August 2006 and October 2007 from the Department of Diabetes and Endocrinology at the Alfred Hospital and Baker IDI Heart and Diabetes Institute, Melbourne. Participants were asked to read information about a mock study via a computer-based presentation (n = 30) or a conventional paper-based information statement (n = 30). The computer-based presentation contained visual aids, including diagrams, video, hyperlinks and quiz pages. Understanding of information as assessed by quantitative and qualitative means. Assessment scores used to measure level of understanding were significantly higher in the group that completed the computer-based task than the group that completed the paper-based task (82% v 73%; P = 0.005). More participants in the group that completed the computer-based task expressed interest in taking part in the mock study (23 v 17 participants; P = 0.01). Most participants from both groups preferred the idea of a computer-based presentation to the paper-based statement (21 in the computer-based task group, 18 in the paper-based task group). A computer-based method of providing information may help overcome existing deficiencies in communication about clinical research, and may reduce costs and improve efficiency in recruiting participants for clinical trials.

An Efficient ERP-Based Brain-Computer Interface Using Random Set Presentation and Face Familiarity

PubMed Central

Müller, Klaus-Robert; Lee, Seong-Whan

2014-01-01

Event-related potential (ERP)-based P300 spellers are commonly used in the field of brain-computer interfaces as an alternative channel of communication for people with severe neuro-muscular diseases. This study introduces a novel P300 based brain-computer interface (BCI) stimulus paradigm using a random set presentation pattern and exploiting the effects of face familiarity. The effect of face familiarity is widely studied in the cognitive neurosciences and has recently been addressed for the purpose of BCI. In this study we compare P300-based BCI performances of a conventional row-column (RC)-based paradigm with our approach that combines a random set presentation paradigm with (non-) self-face stimuli. Our experimental results indicate stronger deflections of the ERPs in response to face stimuli, which are further enhanced when using the self-face images, and thereby improving P300-based spelling performance. This lead to a significant reduction of stimulus sequences required for correct character classification. These findings demonstrate a promising new approach for improving the speed and thus fluency of BCI-enhanced communication with the widely used P300-based BCI setup. PMID:25384045

An efficient ERP-based brain-computer interface using random set presentation and face familiarity.

PubMed

Yeom, Seul-Ki; Fazli, Siamac; Müller, Klaus-Robert; Lee, Seong-Whan

2014-01-01

Event-related potential (ERP)-based P300 spellers are commonly used in the field of brain-computer interfaces as an alternative channel of communication for people with severe neuro-muscular diseases. This study introduces a novel P300 based brain-computer interface (BCI) stimulus paradigm using a random set presentation pattern and exploiting the effects of face familiarity. The effect of face familiarity is widely studied in the cognitive neurosciences and has recently been addressed for the purpose of BCI. In this study we compare P300-based BCI performances of a conventional row-column (RC)-based paradigm with our approach that combines a random set presentation paradigm with (non-) self-face stimuli. Our experimental results indicate stronger deflections of the ERPs in response to face stimuli, which are further enhanced when using the self-face images, and thereby improving P300-based spelling performance. This lead to a significant reduction of stimulus sequences required for correct character classification. These findings demonstrate a promising new approach for improving the speed and thus fluency of BCI-enhanced communication with the widely used P300-based BCI setup.

Preliminary evaluation of the impact of a Web-based HIV testing programme in Abruzzo Region on the prevention of late HIV presentation and associated mortality.

PubMed

Polilli, Ennio; Sozio, Federica; Di Stefano, Paola; Clerico, Luigi; Di Iorio, Giancarlo; Parruti, Giustino

2018-04-01

This study aimed to analyze the efficacy of a Web-based testing programme in terms of the prevention of late HIV presentation. The clinical characteristics of patients diagnosed with HIV via the Web-based testing programme were compared to those of patients diagnosed in parallel via standard diagnostic care procedures. This study included the clinical and demographic data of newly diagnosed HIV patients enrolled at the study clinic between February 2014 and June 2017. These patients were diagnosed either via standard diagnostic procedures or as a result of the Web-based testing programme. Eighty-eight new cases of HIV were consecutively enrolled; their mean age was 39.1±13.0 years. Fifty-nine patients (67%) were diagnosed through standard diagnostic procedures and 29 (33%) patients came from the Web-based testing programme. Late presentation (62% vs. 34%, p=0.01) and AIDS-defining conditions at presentation (13 vs. 1, p=0.02) were significantly more frequent in the standard care group than in the Web-based group; four of 13 patients with AIDS diagnosed under standard diagnostic procedures died, versus none in the Web-based testing group (p<0.001). Web-based recruitment for voluntary and free HIV testing helped to diagnose patients with less advanced HIV disease and no risk of death, from all at-risk groups, in comparison with standard care testing. Copyright © 2018 The Authors. Published by Elsevier Ltd.. All rights reserved.

A Constraint-Based Approach to Acquisition of Word-Final Consonant Clusters in Turkish Children

ERIC Educational Resources Information Center

Gokgoz-Kurt, Burcu

2017-01-01

The current study provides a constraint-based analysis of L1 word-final consonant cluster acquisition in Turkish child language, based on the data originally presented by Topbas and Kopkalli-Yavuz (2008). The present analysis was done using [?]+obstruent consonant cluster acquisition. A comparison of Gradual Learning Algorithm (GLA) under…

Courseware Integration into Task-Based Learning: A Case Study of Multimedia Courseware-Supported Oral Presentations for Non-English Major Students

ERIC Educational Resources Information Center

Tsai, Shu-Chiao

2011-01-01

This study reports on the integration of English for Specific Purposes (ESP) multimedia courseware for oral presentations into a self-learning and elective program for non-English major students in an English as a Foreign Language (EFL) setting. A computer-aided instruction approach, combined with a task-based learning approach, was adopted.…

Gender-Based Content of Educational Materials for the Study of Serbian Language in Lower-Stage Grades of Elementary Education

ERIC Educational Resources Information Center

Trifunovic, Vesna; Petrovic, Ruzica

2014-01-01

This paper presents the results of analysis of educational materials for the study of Serbian language in lower-stage grades of elementary education (intended for students from 7 through 11 years old) from gender perspective. The first part of the paper presents the process of institutionalization of gender-based education in the Republic of…

pH-Modulated Watson-Crick duplex-quadruplex equilibria of guanine-rich and cytosine-rich DNA sequences 140 base pairs upstream of the c-kit transcription initiation site.

PubMed

Bucek, Pavel; Jaumot, Joaquim; Aviñó, Anna; Eritja, Ramon; Gargallo, Raimundo

2009-11-23

Guanine-rich regions of DNA are sequences capable of forming G-quadruplex structures. The formation of a G-quadruplex structure in a region 140 base pairs (bp) upstream of the c-kit transcription initiation site was recently proposed (Fernando et al., Biochemistry, 2006, 45, 7854). In the present study, the acid-base equilibria and the thermally induced unfolding of the structures formed by a guanine-rich region and by its complementary cytosine-rich strand in c-kit were studied by means of circular dichroism and molecular absorption spectroscopies. In addition, competition between the Watson-Crick duplex and the isolated structures was studied as a function of pH value and temperature. Multivariate data analysis methods based on both hard and soft modeling were used to allow accurate quantification of the various acid-base species present in the mixtures. Results showed that the G-quadruplex and i-motif coexist with the Watson-Crick duplex over the pH range from 3.0 to 6.5, approximately, under the experimental conditions tested in this study. At pH 7.0, the duplex is practically the only species present.

Presentation Attack Detection for Iris Recognition System Using NIR Camera Sensor

PubMed Central

Nguyen, Dat Tien; Baek, Na Rae; Pham, Tuyen Danh; Park, Kang Ryoung

2018-01-01

Among biometric recognition systems such as fingerprint, finger-vein, or face, the iris recognition system has proven to be effective for achieving a high recognition accuracy and security level. However, several recent studies have indicated that an iris recognition system can be fooled by using presentation attack images that are recaptured using high-quality printed images or by contact lenses with printed iris patterns. As a result, this potential threat can reduce the security level of an iris recognition system. In this study, we propose a new presentation attack detection (PAD) method for an iris recognition system (iPAD) using a near infrared light (NIR) camera image. To detect presentation attack images, we first localized the iris region of the input iris image using circular edge detection (CED). Based on the result of iris localization, we extracted the image features using deep learning-based and handcrafted-based methods. The input iris images were then classified into real and presentation attack categories using support vector machines (SVM). Through extensive experiments with two public datasets, we show that our proposed method effectively solves the iris recognition presentation attack detection problem and produces detection accuracy superior to previous studies. PMID:29695113

Presentation Attack Detection for Iris Recognition System Using NIR Camera Sensor.

PubMed

Nguyen, Dat Tien; Baek, Na Rae; Pham, Tuyen Danh; Park, Kang Ryoung

2018-04-24

Among biometric recognition systems such as fingerprint, finger-vein, or face, the iris recognition system has proven to be effective for achieving a high recognition accuracy and security level. However, several recent studies have indicated that an iris recognition system can be fooled by using presentation attack images that are recaptured using high-quality printed images or by contact lenses with printed iris patterns. As a result, this potential threat can reduce the security level of an iris recognition system. In this study, we propose a new presentation attack detection (PAD) method for an iris recognition system (iPAD) using a near infrared light (NIR) camera image. To detect presentation attack images, we first localized the iris region of the input iris image using circular edge detection (CED). Based on the result of iris localization, we extracted the image features using deep learning-based and handcrafted-based methods. The input iris images were then classified into real and presentation attack categories using support vector machines (SVM). Through extensive experiments with two public datasets, we show that our proposed method effectively solves the iris recognition presentation attack detection problem and produces detection accuracy superior to previous studies.

Attitudes of Nigerian Secondary School Teachers towards Media-Based Learning.

ERIC Educational Resources Information Center

Ekpo, C. M.

This document presents results of a study assessing the attitudes of secondary school teachers towards media based learning. The study explores knowledge of and exposure to media based learning techniques of a cross section of Nigerian secondary school teachers. Factors that affect the use of media based learning technique are sought. Media based…

Measuring the Confidence of 8th Grade Taiwanese Students' Knowledge of Acids and Bases

ERIC Educational Resources Information Center

Jack, Brady Michael; Liu, Chia-Ju; Chiu, Houn-Lin; Tsai, Chun-Yen

2012-01-01

The present study investigated whether gender differences were present on the confidence judgments made by 8th grade Taiwanese students on the accuracy of their responses to acid-base test items. A total of 147 (76 male, 71 female) students provided item-specific confidence judgments during a test of their knowledge of acids and bases. Using the…

Influence on Levels of Information as Presented by Different Technologies on Students' Understanding of Acid, Base, and pH Concepts.

ERIC Educational Resources Information Center

Nakhleh, Mary B.; Krajcik, Joseph S.

1994-01-01

Involves secondary students in a study designed to allow investigation into how different levels of information presented by various technologies (chemical indicators, pH meters, and microcomputer-based laboratories-MBLs) affected students' understanding of acid, base, and pH concepts. Results showed that students using MBLs exhibited a greater…

FORMULATION AND EVALUATION OF RICE BRAN WAX AS OINTMENT BASE

PubMed Central

Bhalekar, M; Manish, Lavhale; Krishna, Sini

2004-01-01

Rice Bran wax is obtained from natural sources and is abundantly available in the country. Rice bran wax is suitable for use in chocolate enrobes, as an enteric coating for candy and lozenges, as a plasticizing material in chewing gums etc. Present study attempts to find if rice bran wax is useful as ointment base. The oleaginous type ointment base is prepared by using rice bran wax and evaluated for speardabililty, water number and active ingredient diffusibility. The results obtained in the present study indicate, rice bran wax can be used as a good component in ointment base, comparable with white wax. PMID:22557151

Variation in the cranial base orientation and facial skeleton in dry skulls sampled from three major populations.

PubMed

Kuroe, Kazuto; Rosas, Antonio; Molleson, Theya

2004-04-01

The aim of this study was to analyse the effects of cranial base orientation on the morphology of the craniofacial system in human populations. Three geographically distant populations from Europe (72), Africa (48) and Asia (24) were chosen. Five angular and two linear variables from the cranial base component and six angular and six linear variables from the facial component based on two reference lines of the vertical posterior maxillary and Frankfort horizontal planes were measured. The European sample presented dolichofacial individuals with a larger face height and a smaller face depth derived from a raised cranial base and facial cranium orientation which tended to be similar to the Asian sample. The African sample presented brachyfacial individuals with a reduced face height and a larger face depth as a result of a lowered cranial base and facial cranium orientation. The Asian sample presented dolichofacial individuals with a larger face height and depth due to a raised cranial base and facial cranium orientation. The findings of this study suggest that cranial base orientation and posterior cranial base length appear to be valid discriminating factors between different human populations.

Cyberbullying Prevention and Intervention Programs in Schools: A Systematic Review

ERIC Educational Resources Information Center

Tanrikulu, Ibrahim

2018-01-01

This article presents a systematic review of school-based cyberbullying prevention and intervention programs. Research presenting empirical evidence about the effectiveness of a school-based cyberbullying prevention or intervention program published before August 2016 was searched. Seventeen studies were obtained and reviewed. The findings showed…

Upper-Division Students' Difficulties with Ampere's Law

ERIC Educational Resources Information Center

Wallace, Colin S.; Chasteen, Stephanie V.

2010-01-01

This study presents and interprets some conceptual difficulties junior-level physics students experience with Ampere's law. We present both quantitative data, based on students' written responses to conceptual questions, and qualitative data, based on interviews of students solving Ampere's law problems. We find that some students struggle to…

Functional Analysis and Preliminary Specifications for a Single Integrated Central Computer System for Secondary Schools and Junior Colleges. Interim Report.

ERIC Educational Resources Information Center

1968

The present report proposes a central computing facility and presents the preliminary specifications for such a system. It is based, in part, on the results of earlier studies by two previous contractors on behalf of the U.S. Office of Education. The recommendations are based upon the present contractors considered evaluation of the earlier…

The Effects of Study Tasks in a Computer-Based Chemistry Learning Environment

ERIC Educational Resources Information Center

Urhahne, Detlef; Nick, Sabine; Poepping, Anna Christin; Schulz , Sarah Jayne

2013-01-01

The present study examines the effects of different study tasks on the acquisition of knowledge about acids and bases in a computer-based learning environment. Three different task formats were selected to create three treatment conditions: learning with gap-fill and matching tasks, learning with multiple-choice tasks, and learning only from text…

What constitutes evidence-based patient information? Overview of discussed criteria.

PubMed

Bunge, Martina; Mühlhauser, Ingrid; Steckelberg, Anke

2010-03-01

To survey quality criteria for evidence-based patient information (EBPI) and to compile the evidence for the identified criteria. Databases PubMed, Cochrane Library, PsycINFO, PSYNDEX and Education Research Information Center (ERIC) were searched to update the pool of criteria for EBPI. A subsequent search aimed to identify evidence for each criterion. Only studies on health issues with cognitive outcome measures were included. Evidence for each criterion is presented using descriptive methods. 3 systematic reviews, 24 randomized-controlled studies and 1 non-systematic review were included. Presentation of numerical data, verbal presentation of risks and diagrams, graphics and charts are based on good evidence. Content of information and meta-information, loss- and gain-framing and patient-oriented outcome measures are based on ethical guidelines. There is a lack of studies on quality of evidence, pictures and drawings, patient narratives, cultural aspects, layout, language and development process. The results of this review allow specification of EBPI and may help to advance the discourse among related disciplines. Research gaps are highlighted. Findings outline the type and extent of content of EBPI, guide the presentation of information and describe the development process. Copyright 2009 Elsevier Ireland Ltd. All rights reserved.

Metacognitive Skills Development: A Web-Based Approach in Higher Education

ERIC Educational Resources Information Center

Shen, Chun-Yi; Liu, Hsiu-Chuan

2011-01-01

Although there were studies that presented the applications of metacognitive skill training, the research on web-based metacognitive skills training are few. The purpose of this study is to design a web-based learning environment and further examine the effect of the web-based training. A pretest-posttest quasi-experimental design was used in this…

Anthropometric profile of elite acrobatic gymnasts and prediction of role performance.

PubMed

Taboada-Iglesias, Yaiza; Gutiérrez-Sánchez, Águeda; Vernetta Santana, Mercedes

2016-04-01

This study is aimed at determining the anthropometric profile of acrobatic gymnasts, differentiating on the basis of their role. The sample consisted of 150 gymnasts (129 women and 21 men) from throughout Spain. The anthropometric measurements were taken according to the International Society for the Advancement of Kinanthropometry (ISAK) procedures. Morphological measurements, proportionality and somatotype were analyzed in both groups. A comparative analysis between groups and a prediction model were used to analyze the specific profile of each role. All morphological measurements showed significant differences (P<0.05) between tops and bases, the latter presenting higher values. The endomorphic element of the bases presented higher values than the tops, for whom the ectomorphy scores were higher. Bases have an endo-mesomorphic somatotype and tops present a balanced mesomorphic. There are no mesomorphy differences between the tops and bases. BMI was significantly higher in the bases (BMI=20.28 kg/m2). Proportionality differences between roles are shown. Both roles present negatives values for almost all variables studied except for the trochlear condyle of the humerus, the bicondyle of the femur and the wrist bistyloid breadth in tops and the wrist bistyloid breadth, the upper arm relaxed girths and maximum calf in bases. The best prediction model included thigh girth as the best explanatory covariate of role performance. Here are differences between both roles, bases being gymnasts of larger size than tops. However, they present no differences in the muscular component, as it might be expected.

The Use of Audio and Animation in Computer Based Instruction.

ERIC Educational Resources Information Center

Koroghlanian, Carol; Klein, James D.

This study investigated the effects of audio, animation, and spatial ability in a computer-based instructional program for biology. The program presented instructional material via test or audio with lean text and included eight instructional sequences presented either via static illustrations or animations. High school students enrolled in a…

Organizing the Diagnostics of Multicultural Personality in College Students

ERIC Educational Resources Information Center

Begaliyeva, Saule; Issabekova, Gulnur; Saudabaeva, Gulmira; Zhanna, Axakalova; Abdildaev, Abdikhalyk Kosherbayuly

2016-01-01

The aim of present study is to reveal the actual state of multicultural personality development in college students, based on a specially selected diagnostic inventory. The problem of multicultural personality development on the level of present pedagogics development allows taking the leading methodologic theories and approaches as the bases.…

FLAX: Flexible and Open Corpus-Based Language Collections Development

ERIC Educational Resources Information Center

Fitzgerald, Alannah; Wu, Shaoqun; Marín, María José

2015-01-01

In this case study we present innovative work in building open corpus-based language collections by focusing on a description of the opensource multilingual Flexible Language Acquisition (FLAX) language project, which is an ongoing example of open materials development practices for language teaching and learning. We present language-learning…

A Cultured Learning Environment: Implementing a Problem- and Service-Based Microbiology Capstone Course to Assess Process- and Skill-Based Learning Objectives

ERIC Educational Resources Information Center

Watson, Rachel M.; Willford, John D.; Pfeifer, Mariel A.

2018-01-01

In this study, a problem-based capstone course was designed to assess the University of Wyoming Microbiology Program's skill-based and process-based student learning objectives. Students partnered with a local farm, a community garden, and a free downtown clinic in order to conceptualize, propose, perform, and present studies addressing problems…

The Effect of Project-Based Activities on Intermediate EFL Students' Reading Comprehension Ability

ERIC Educational Resources Information Center

Shiraz, Mona Poorverdi; Larsari, Ebrahim Ezati

2014-01-01

The present study investigates the relationship between the use of Project-based activities and intermediate EFL students' reading comprehension. The study addresses the questions of whether students' reading comprehension differs after implementing Project-based activities, and whether different projects lead to different degrees of reading…

Evidence-Based Language Practice

ERIC Educational Resources Information Center

Pollock, Eric J.

2005-01-01

The purpose of this paper was to examine evidence-based procedures in medicine and to demonstrate that the same protocols can be used in English language instruction. In the evidence-based methodology, studies are divided into those that address specific language problems. Integrated studies are presented as a systematic overview, meta-analysis,…

Self-assembling peptide-based building blocks in medical applications

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

Acar, Handan; Srivastava, Samanvaya; Chung, Eun Ji

Peptides and peptide-conjugates, comprising natural and synthetic building blocks, are an increasingly popular class of biomaterials. Self-assembled nanostructures based on peptides and peptide-conjugates offer advantages such as precise selectivity and multifunctionality that can address challenges and limitations in the clinic. In this review article, we discuss recent developments in the design and self-assembly of various nanomaterials based on peptides and peptide-conjugates for medical applications, and categorize them into two themes based on the driving forces of molecular self-assembly. First, we present the self-assembled nanostructures driven by the supramolecular interactions between the peptides, with or without the presence of conjugates. Themore » studies where nanoassembly is driven by the interactions between the conjugates of peptide-conjugates are then presented. Particular emphasis is given to in vivo studies focusing on therapeutics, diagnostics, immune modulation and regenerative medicine. Finally, challenges and future perspectives are presented.« less

Partial slip effect on non-aligned stagnation point nanofluid over a stretching convective surface

NASA Astrophysics Data System (ADS)

Nadeem, S.; Rashid, Mehmood; Noreen Sher, Akbar

2015-01-01

The present study inspects the non-aligned stagnation point nano fluid over a convective surface in the presence of partial slip.Two types of base fluids namely water and kerosene are selected with Cu nanoparticles. The governing physical problem is presented and transformed into a system of coupled nonlinear differential equations using suitable similarity transformations. These equations are then solved numerically using midpoint integration scheme along with Richardson extrapolation via Maple. Impact of relevant physical parameters on the dimensionless velocity and temperature profiles are portrayed through graphs. Physical quantities such as local skin frictions co-efficient and Nusselt numbers are tabularized. It is detected from numerical computations that kerosene-based nano fluids have better heat transfer capability compared with water-based nanofluids. Moreover it is found that water-based nanofluids offer less resistance in terms of skin friction than kerosene-based fluid. In order to authenticate our present study, the calculated results are compared with the prevailing literature and a considerable agreement is perceived for the limiting case.

Through the looking glass of a chemistry video game: Evaluating the effects of different MLEs presenting identical content material

NASA Astrophysics Data System (ADS)

Hillman, Dustin S.

The primary goal of this study is to evaluate the effects of different media-based learning environments (MLEs) that present identical chemistry content material. This is done with four different MLEs that utilize some or all components of a chemistry-based media-based prototype video game. Examination of general chemistry student volunteers purposefully randomized to one of four different MLEs did not provide evidence that the higher the level of interactivity resulted in a more effective MLE for the chemistry content. Data suggested that the cognitive load to play the chemistry-based video game may impaired the chemistry content being presented and recalled by the students while the students watching the movie of the chemistry-based video game were able to recall the chemistry content more efficiently. Further studies in this area need to address the overall cognitive load of the different MLEs to potentially better determine what the most effective MLE may be for this chemistry content.

Live and Web-based orientations are comparable for a required rotation.

PubMed

Prunuske, Jacob

2010-03-01

Studies show equivalency in knowledge when measured following Web-based learning and live lecture. However, the effectiveness of a Web-based orientation for a required clinical rotation is unknown. Medical students viewed a Web-based orientation and completed a 13-item evaluation before beginning a required 6-week community medicine rotation. Evaluation data from 2007-2008 live orientation sessions were compared to responses from 2008-2009 Web-based orientation sessions. Data were analyzed by two-sample tests of proportion. A total of 169 students completed surveys during the study period--78 following the live and 91 following the Web-based orientation. Response rates were equal in the two groups. The survey tool had a high level of reliability (Cronbach's alpha=0.96). There was no statistical difference in student evaluations for 12 of 13 orientation evaluation items. Live and Web-based formats are comparable for presenting orientation materials to a required clinical rotation. Students felt the purpose of the rotation, educational goals, course structure, and requirements were clearly presented regardless of format. Transition from a live to Web-based format reduced faculty time required to present at rotation orientations.

Risk factors for depressive disorders in very old age: a population-based cohort study with a 5-year follow-up.

PubMed

Petersson, Sofia; Mathillas, Johan; Wallin, Karin; Olofsson, Birgitta; Allard, Per; Gustafson, Yngve

2014-05-01

Depressive disorders are common among the very old, but insufficiently studied. The present study aims to identify risk factors for depressive disorders in very old age. The present study is based on the GERDA project, a population-based cohort study of people aged ≥85 years (n = 567), with 5 years between baseline and follow-up. Factors associated with the development of depressive disorders according to DSM-IV criteria at follow-up were analysed by means of a multivariate logistic regression. At baseline, depressive disorders were present in 32.3 % of the participants. At follow-up, 69 % of those with baseline depressive disorders had died. Of the 49 survivors, 38 still had depressive disorders. Of the participants without depressive disorders at baseline, 25.5 % had developed depressive disorders at follow-up. Baseline factors independently associated with new cases of depressive disorders after 5 years were hypertension, a history of stroke and 15-item Geriatric Depression Scale score at baseline. The present study supports the earlier findings that depressive disorders among the very old are common, chronic and malignant. Mild depressive symptoms as indicated by GDS-15 score and history of stroke or hypertension seem to be important risk factors for incident depressive disorders in very old age.

A Computer Game-Based Method for Studying Bullying and Cyberbullying

ERIC Educational Resources Information Center

Mancilla-Caceres, Juan F.; Espelage, Dorothy; Amir, Eyal

2015-01-01

Even though previous studies have addressed the relation between face-to-face bullying and cyberbullying, none have studied both phenomena simultaneously. In this article, we present a computer game-based method to study both types of peer aggression among youth. Study participants included fifth graders (N = 93) in two U.S. Midwestern middle…

Study of helicopterroll control effectiveness criteria

NASA Technical Reports Server (NTRS)

Heffley, Robert K.; Bourne, Simon M.; Curtiss, Howard C., Jr.; Hindson, William S.; Hess, Ronald A.

1986-01-01

A study of helicopter roll control effectiveness based on closed-loop task performance measurement and modeling is presented. Roll control critieria are based on task margin, the excess of vehicle task performance capability over the pilot's task performance demand. Appropriate helicopter roll axis dynamic models are defined for use with analytic models for task performance. Both near-earth and up-and-away large-amplitude maneuvering phases are considered. The results of in-flight and moving-base simulation measurements are presented to support the roll control effectiveness criteria offered. This Volume contains the theoretical analysis, simulation results and criteria development.

Do Incentive-Based Programs Improve Teacher Quality and Student Achievement? An Analysis of Implementation in 12 Urban Charter Schools

ERIC Educational Resources Information Center

Kaimal, Girija; Jordan, Will J.

2016-01-01

Context: Policymakers have increasingly advocated for incentive-based approaches for improving urban schools. Purpose of the study: Few studies have examined the implementation of incentive based approaches in the urban charter school context. This paper presents research findings from a 4-year longitudinal study of the implementation of a…

Structure-Based Phylogenetic Analysis of the Lipocalin Superfamily.

PubMed

Lakshmi, Balasubramanian; Mishra, Madhulika; Srinivasan, Narayanaswamy; Archunan, Govindaraju

2015-01-01

Lipocalins constitute a superfamily of extracellular proteins that are found in all three kingdoms of life. Although very divergent in their sequences and functions, they show remarkable similarity in 3-D structures. Lipocalins bind and transport small hydrophobic molecules. Earlier sequence-based phylogenetic studies of lipocalins highlighted that they have a long evolutionary history. However the molecular and structural basis of their functional diversity is not completely understood. The main objective of the present study is to understand functional diversity of the lipocalins using a structure-based phylogenetic approach. The present study with 39 protein domains from the lipocalin superfamily suggests that the clusters of lipocalins obtained by structure-based phylogeny correspond well with the functional diversity. The detailed analysis on each of the clusters and sub-clusters reveals that the 39 lipocalin domains cluster based on their mode of ligand binding though the clustering was performed on the basis of gross domain structure. The outliers in the phylogenetic tree are often from single member families. Also structure-based phylogenetic approach has provided pointers to assign putative function for the domains of unknown function in lipocalin family. The approach employed in the present study can be used in the future for the functional identification of new lipocalin proteins and may be extended to other protein families where members show poor sequence similarity but high structural similarity.

Factors Associated with Evidence-Based Clinical Questions Presented in a Vertically Integrated Seminar Series at a U.S. Dental School.

PubMed

Shenoy, Gayathri M; Dragan, Irina F; Pagni, Sarah; Murphy, Jennipher; Karimbux, Nadeem

2018-06-01

The Basic Science/Clinical Science Spiral Seminar Series (BaSiCSsss) was implemented at Tufts University School of Dental Medicine in 2013. In the series, teams of dental students from all four years presented components of a clinical case, supported by evidence-based dentistry concepts. The role of the third-year student on each team was to present questions based on the PICO (Population, Intervention, Comparison, Outcome) method to support the treatment plan for the selected case. The primary aim of this study was to identify the dental discipline from which the PICO question was chosen, and the secondary aim was to review the level of evidence (journal impact factor, study design, and year of publication) of sources used to support the PICO questions. Presentations compiled during the 2014-15 and 2015-16 academic years were reviewed. The PICO questions and additional details from the publications used as reference (choice of journal, year of publication, study design) were reviewed. A total of 224 presentations were reviewed. The results showed that most topics were from the subjects of periodontology and prosthodontics. Systematic reviews and cohort studies were the most often used types of study design. The majority of the articles cited were recently published. The students used supporting references for the clinical questions published recently with a high level of evidence.

Action Reflected and Project Based Combined Methodology for the Appropriate Comprehension of Mechanisms in Industrial Design Education

ERIC Educational Resources Information Center

Yavuzcan, H. Güçlü; Sahin, Damla

2017-01-01

In industrial design (ID) education, mechanics-based courses are mainly based on a traditional lecture approach and they are highly abstract for ID students to comprehend. The existing studies highlight the requirement of a new approach for mechanics-based courses in ID departments. This study presents a combined teaching model for mechanisms…

An Analysis of Teaching Competence in Science Teachers Involved in the Design of Context-Based Curriculum Materials

ERIC Educational Resources Information Center

De Putter-Smits, Lesley G. A.; Taconis, Ruurd; Jochems, Wim; Van Driel, Jan

2012-01-01

The committees for the current Dutch context-based innovation in secondary science education employed teachers to design context-based curriculum materials. A study on the learning of science teachers in design teams for context-based curriculum materials is presented in this paper. In a correlation study, teachers with (n = 5 and 840 students)…

Comparison of Smoking, Drinking, and Marijuana Use between Students Present or Absent on the Day of a School-Based Survey

ERIC Educational Resources Information Center

Bovet, Pascal; Viswanathan, Bharathi; Faeh, David; Warren, Wick

2006-01-01

The aim of this population-based survey was to compare the prevalence of selected risk behaviors between students present or absent on the day of a school-based survey. The study population was a representative sample of all students of secondary schools in the Seychelles (Indian Ocean). Students absent on the day of the survey were traced and…

A multimedia case based approach to the study of office ergonomics.

PubMed

August-Dalfen, Sharon; Snider, Laurie

2003-01-01

Multimedia technology has the capacity to provide students with an interactive approach to problem based learning and to bridge the gap between theoretical knowledge and clinical practice. The present paper describes the design and development of the program ErgoROM, a CD which presents a case study to assist occupational therapy students in their studies of office ergonomics. A pilot study showed that overall, 91% of respondents rated the ErgoROM as either "Excellent" or "Very Good". Additionally they reported that ErgoROM had a positive impact on active learning and critical thinking.

The impact of evidence-based practice implementation and fidelity monitoring on staff turnover: evidence for a protective effect.

PubMed

Aarons, Gregory A; Sommerfeld, David H; Hecht, Debra B; Silovsky, Jane F; Chaffin, Mark J

2009-04-01

Staff retention is an ongoing challenge in mental health and community-based service organizations. Little is known about the impact of evidence-based practice implementation on the mental health and social service workforce. The present study examined the effect of evidence-based practice implementation and ongoing fidelity monitoring on staff retention in a children's services system. The study took place in the context of a statewide, regionally randomized effectiveness trial of an evidence-based intervention designed to reduce child neglect. In the study 21 teams consisting of 153 home-based service providers were followed over a 29-month period. Survival analyses revealed greater staff retention in the condition where the evidence-based practice was implemented along with ongoing fidelity monitoring presented to staff as supportive consultation. These results should help to allay concerns about staff retention when implementing evidence-based practices where there is good values-innovation fit and when fidelity monitoring is designed as an aid and support to service providers in providing a high standard of care for children and families.

Design, Development and Analysis of Centrifugal Blower

NASA Astrophysics Data System (ADS)

Baloni, Beena Devendra; Channiwala, Salim Abbasbhai; Harsha, Sugnanam Naga Ramannath

2018-06-01

Centrifugal blowers are widely used turbomachines equipment in all kinds of modern and domestic life. Manufacturing of blowers seldom follow an optimum design solution for individual blower. Although centrifugal blowers are developed as highly efficient machines, design is still based on various empirical and semi empirical rules proposed by fan designers. There are different methodologies used to design the impeller and other components of blowers. The objective of present study is to study explicit design methodologies and tracing unified design to get better design point performance. This unified design methodology is based more on fundamental concepts and minimum assumptions. Parametric study is also carried out for the effect of design parameters on pressure ratio and their interdependency in the design. The code is developed based on a unified design using C programming. Numerical analysis is carried out to check the flow parameters inside the blower. Two blowers, one based on the present design and other on industrial design, are developed with a standard OEM blower manufacturing unit. A comparison of both designs is done based on experimental performance analysis as per IS standard. The results suggest better efficiency and more flow rate for the same pressure head in case of the present design compared with industrial one.

Smart watch-based coaching with tiotropium and olodaterol ameliorates physical activity in patients with chronic obstructive pulmonary disease

PubMed Central

Hataji, Osamu; Nishii, Yoichi; Ito, Kentaro; Sakaguchi, Tadashi; Saiki, Haruko; Suzuki, Yuta; D'Alessandro-Gabazza, Corina; Fujimoto, Hajime; Kobayashi, Tetsu; Gabazza, Esteban C.; Taguchi, Osamu

2017-01-01

Combined therapy with tiotropium and olodaterol notably improves parameters of lung function and quality of life in patients with chronic obstructive pulmonary disease (COPD) compared to mono-components; however, its effect on physical activity is unknown. The present study evaluated whether combination therapy affects daily physical performance in patients with COPD under a smart watch-based encouragement program. This was a non-blinded clinical trial with no randomization or placebo control. A total of 20 patients with COPD were enrolled in the present study. The patients carried an accelerometer for 4 weeks; they received no therapy during the first 2 weeks but they were treated with combined tiotropium and olodaterol under a smart watch-based encouragement program for the last 2 weeks. The pulmonary function test, COPD assessment test, 6-min walk distance and parameters of physical activity were significantly improved (P<0.05) by combination therapy under smart watch-based coaching compared with values prior to treatment. To the best of our knowledge, the present study for the first time provides evidence that smart watch-based coaching in combination with tiotropium and olodaterol may improve daily physical activity in chronic obstructive pulmonary disease. PMID:29104624

Smart watch-based coaching with tiotropium and olodaterol ameliorates physical activity in patients with chronic obstructive pulmonary disease.

PubMed

Hataji, Osamu; Nishii, Yoichi; Ito, Kentaro; Sakaguchi, Tadashi; Saiki, Haruko; Suzuki, Yuta; D'Alessandro-Gabazza, Corina; Fujimoto, Hajime; Kobayashi, Tetsu; Gabazza, Esteban C; Taguchi, Osamu

2017-11-01

Combined therapy with tiotropium and olodaterol notably improves parameters of lung function and quality of life in patients with chronic obstructive pulmonary disease (COPD) compared to mono-components; however, its effect on physical activity is unknown. The present study evaluated whether combination therapy affects daily physical performance in patients with COPD under a smart watch-based encouragement program. This was a non-blinded clinical trial with no randomization or placebo control. A total of 20 patients with COPD were enrolled in the present study. The patients carried an accelerometer for 4 weeks; they received no therapy during the first 2 weeks but they were treated with combined tiotropium and olodaterol under a smart watch-based encouragement program for the last 2 weeks. The pulmonary function test, COPD assessment test, 6-min walk distance and parameters of physical activity were significantly improved (P<0.05) by combination therapy under smart watch-based coaching compared with values prior to treatment. To the best of our knowledge, the present study for the first time provides evidence that smart watch-based coaching in combination with tiotropium and olodaterol may improve daily physical activity in chronic obstructive pulmonary disease.

You Want Me To Do What? The Cultural and Psychological Struggle of Putting a Course Online.

ERIC Educational Resources Information Center

Anderson, Sharon K.; Middleton, Val

2002-01-01

Presents a case study of the development of a Web-based online course. Discusses the culture of online instruction; conflicts in course development; presenting students with reasons for Web-based instruction; student orientation for online programs; motivation; and the need for some human interaction. (LRW)

Learning Efficiency of Two ICT-Based Instructional Strategies in Greek Sheep Farmers

ERIC Educational Resources Information Center

Bellos, Georgios; Mikropoulos, Tassos A.; Deligeorgis, Stylianos; Kominakis, Antonis

2016-01-01

Purpose: The objective of the present study was to compare the learning efficiency of two information and communications technology (ICT)-based instructional strategies (multimedia presentation (MP) and concept mapping) in a sample (n = 187) of Greek sheep farmers operating mainly in Western Greece. Design/methodology/approach: In total, 15…

Scientific Presenting: Using Evidence-Based Classroom Practices to Deliver Effective Conference Presentations

ERIC Educational Resources Information Center

Corwin, Lisa A.; Prunuske, Amy; Seidel, Shannon B.

2018-01-01

Scientists and educators travel great distances, spend significant time, and dedicate substantial financial resources to present at conferences. This highlights the value placed on conference interactions. Despite the importance of conferences, very little has been studied about what is learned from the presentations and how presenters can…

Mathematical Reasoning in Teachers' Presentations

ERIC Educational Resources Information Center

Bergqvist, Tomas; Lithner, Johan

2012-01-01

This paper presents a study of the opportunities presented to students that allow them to learn different types of mathematical reasoning during teachers' ordinary task solving presentations. The characteristics of algorithmic and creative reasoning that are seen in the presentations are analyzed. We find that most task solutions are based on…

The Demand and Supply of University-Based Executive Education. GMAC Occasional Papers.

ERIC Educational Resources Information Center

Johnson, Terry R.; And Others

The results of a study of the market for university-based education programs for executives and managers is presented. Study objectives were to profile corporate use of various executive and management education programs, profile characteristics of university-based executive education programs currently offered, and identify trends and unmet needs…

Blog-Based Peer Response for L2 Writing Revision

ERIC Educational Resources Information Center

Pham, Vu Phi Ho; Usaha, Siriluck

2016-01-01

Few studies have been conducted to see how blog-based peer response helps students to improve their writing revisions. The present study investigates peer comments made through blogs, the nature of the comments and their areas of focus, and the ratios of students incorporating suggestions made through blog-based comments into revisions of their…

SUBTLEX-ESP: Spanish Word Frequencies Based on Film Subtitles

ERIC Educational Resources Information Center

Cuetos, Fernando; Glez-Nosti, Maria; Barbon, Analia; Brysbaert, Marc

2011-01-01

Recent studies have shown that word frequency estimates obtained from films and television subtitles are better to predict performance in word recognition experiments than the traditional word frequency estimates based on books and newspapers. In this study, we present a subtitle-based word frequency list for Spanish, one of the most widely spoken…

Video-based training of respite care providers: an interactional analysis of presentation format.

PubMed Central

Neef, N A; Trachtenberg, S; Loeb, J; Sterner, K

1991-01-01

We conducted two studies to evaluate a video-based instructional package for training respite care providers and the role of presentation format (viewing the videotapes alone, with a partner, and with structured group training) as a contextual variable. In Study 1, the results of a within-subjects Latin square design nested within a multiple baseline showed that performance during simulated (role-played) respite care situations improved in five of the six skill areas for the 12 trainees following presentation of the videotape, with no differences between presentation formats. Correct responding generalized to respite care situations involving a developmentally disabled child, and in most cases, acquired skills were maintained for up to 6 months. In Study 2, we conducted a clinical replication of Study 1 under conditions more closely approximating those in which the training program would be implemented by respite care agencies. Results of the between-groups analysis were consistent with the findings of Study 1. PMID:1836458

Case studies in geographic information systems for internet portals

DOT National Transportation Integrated Search

2012-06-30

The following report investigates the experiences of transportation agencies in the deployment of Internet-based mapping portals based on GIS. It presents background information, a series of case studies, and a summary of conclusions given the experi...

An fMRI paradigm based on Williams inhibition test to study the neural substrates of attention and inhibitory control.

PubMed

Dores, Artemisa R; Barbosa, Fernando; Carvalho, Irene P; Almeida, Isabel; Guerreiro, Sandra; da Rocha, Benedita Martins; Cunha, Gil; Castelo Branco, Miguel; de Sousa, Liliana; Castro Caldas, Alexandre

2017-12-01

The purpose of this study is to present an fMRI paradigm, based on the Williams inhibition test (WIT), to study attentional and inhibitory control and their neuroanatomical substrates. We present an index of the validity of the proposed paradigm and test whether the experimental task discriminates the behavioral performances of healthy participants from those of individuals with acquired brain injury. Stroop and Simon tests present similarities with WIT, but this latter is more demanding. We analyze the BOLD signal in 10 healthy participants performing the WIT. The dorsolateral prefrontal cortex, the inferior prefrontal cortex, the anterior cingulate cortex, and the posterior cingulate cortex were defined for specified region of interest analysis. We additionally compare behavioral data (hits, errors, reaction times) of the healthy participants with those of eight acquired brain injury patients. Data were analyzed with GLM-based random effects and Mann-Whitney tests. Results show the involvement of the defined regions and indicate that the WIT is sensitive to brain lesions. This WIT-based block design paradigm can be used as a research methodology for behavioral and neuroimaging studies of the attentional and inhibitory components of executive functions.

The safety and effectiveness of pediatric chiropractic: a survey of chiropractors and parents in a practice-based research network.

PubMed

Alcantara, Joel; Ohm, Jeanne; Kunz, Derek

2009-01-01

With continued popularity of complementary and alternative medicine (CAM) therapies for children, their safety and effectiveness are of high concern for both CAM and conventional therapy providers. Chiropractic is the most popular form of practitioner-based CAM therapies for children. The objective of this study was to describe the practice of pediatric chiropractic, including its safety and effectiveness. This study used a cross-sectional survey. A practice-based research network was used for this study. Participants were chiropractors and parents of pediatric patients (aged < or =18 years) attending chiropractic visits ranging from one to 12 visits. This is a survey study. No interventions were rendered in the completion of this study. Demographics, clinical presentations, treatment-associated aggravations, complications and improvements. The indicated primary reason for chiropractic care of children was "wellness care." With respect to condition-based presentations, musculoskeletal conditions were the most common, in addition to nonmusculoskeletal conditions of childhood. The most common techniques used were diversified technique, Gonstead technique, Thompson technique, and activator methods. Treatment-associated complications were not indicated by the chiropractic and parent responders. Chiropractor responders indicated three adverse events per 5,438 office visits from the treatment of 577 children. The parent responders indicated two adverse events from 1,735 office visits involving the care of 239 children. Both sets of responders indicated a high rate of improvement with respect to the children's presenting complaints, in addition to salutary effects unrelated to the children's initial clinical presentations.

The Impact of Globalization on Teaching Profession: The Global Teacher

ERIC Educational Resources Information Center

Canli, Suzan; Demirtas, Hasan

2018-01-01

The main objective of the present study was to examine the impact of globalization on the teaching profession based on teacher views. Furthermore, the study aimed to make recommendations for the practitioners and the researchers based on the study findings. In the study, the qualitative phenomenology research method was used and the participants…

International symposium on in vivo body composition studies: Program and abstracts

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

Not Available

1986-01-01

This booklet contains the program and individual abstracts for papers presented at the International symposium on in vivo body composition studies. The presentations were divided into five sessions. Individual abstracts were indexed for the Energy Data Base. (DT)

BOLDSync: a MATLAB-based toolbox for synchronized stimulus presentation in functional MRI.

PubMed

Joshi, Jitesh; Saharan, Sumiti; Mandal, Pravat K

2014-02-15

Precise and synchronized presentation of paradigm stimuli in functional magnetic resonance imaging (fMRI) is central to obtaining accurate information about brain regions involved in a specific task. In this manuscript, we present a new MATLAB-based toolbox, BOLDSync, for synchronized stimulus presentation in fMRI. BOLDSync provides a user friendly platform for design and presentation of visual, audio, as well as multimodal audio-visual (AV) stimuli in functional imaging experiments. We present simulation experiments that demonstrate the millisecond synchronization accuracy of BOLDSync, and also illustrate the functionalities of BOLDSync through application to an AV fMRI study. BOLDSync gains an advantage over other available proprietary and open-source toolboxes by offering a user friendly and accessible interface that affords both precision in stimulus presentation and versatility across various types of stimulus designs and system setups. BOLDSync is a reliable, efficient, and versatile solution for synchronized stimulus presentation in fMRI study. Copyright © 2013 Elsevier B.V. All rights reserved.

Jupiter cloud morphology and zonal winds from ground-based observations during Juno's first year around Jupiter

NASA Astrophysics Data System (ADS)

Hueso, R.; Sánchez-Lavega, A.; Gómez-Forrellad, J. M.; Rojas, J. F.; Pérez-Hoyos, S.; Sanz-Requena, J. F.; Peralta, J.; Ordonez-Etxeberria, I.; Chen-Chen, H.; Mendikoa, I.; Peach, D.; Go, C.; Wesley, A.; Miles, P.; Olivetti, T.

2017-09-01

We present an analysis of Jupiter's atmospheric activity over Juno's first year around the planet based on ground-based observations. We present variability of the zonal winds associated to large outbreaks of convective activity at different belts in the planet, a study of short-scale atmospheric waves at low latitudes and examine polar views of the planet that can be compared with JunoCam observations.

Is Time-Based Prospective Remembering Mediated by Self-Initiated Rehearsals? Role of Incidental Cues, Ongoing Activity, Age, and Motivation

ERIC Educational Resources Information Center

Kvavilashvili, Lia; Fisher, Laura

2007-01-01

The present research examined self-reported rehearsal processes in naturalistic time-based prospective memory tasks (Study 1 and 2) and compared them with the processes in event-based tasks (Study 3). Participants had to remember to phone the experimenter either at a prearranged time (a time-based task) or after receiving a certain text message…

Exploratory Evaluation of a School-Based Child Sexual Abuse Prevention Program

ERIC Educational Resources Information Center

Barron, Ian G.; Topping, Keith J.

2013-01-01

Internationally, efficacy studies of school-based child sexual abuse prevention programs display a series of methodological shortcomings. Few studies include adolescent participants, recording of disclosures has been inconsistent, and no studies to date have assessed presenter adherence to program protocols or summated the costs of program…

Discussion Based Fish Bowl Strategy in Learning Psychology

ERIC Educational Resources Information Center

Singaravelu, G.

2007-01-01

The present study investigates the learning problems in psychology at Master of Education(M.Ed.,) in Bharathiar University and finds the effectiveness of Discussion Based Fish Bowl Strategy in learning psychology. Single group Experimental method was adopted for the study. Both qualitative and quantitative approaches were adopted for this study.…

An approach to developing nutrient criteria for Pacific Northwest Estuaries: A case study

EPA Science Inventory

This presentation provides an overview of an approach to developing nutrient criteria for Pacific Northwest (PNW) estuaries, based on a case study of Yaquina Estuary, Oregon. The approach is based on a synthesis of research from field studies, analyses of historical trends in wat...

A new scenario-based approach to damage detection using operational modal parameter estimates

NASA Astrophysics Data System (ADS)

Hansen, J. B.; Brincker, R.; López-Aenlle, M.; Overgaard, C. F.; Kloborg, K.

2017-09-01

In this paper a vibration-based damage localization and quantification method, based on natural frequencies and mode shapes, is presented. The proposed technique is inspired by a damage assessment methodology based solely on the sensitivity of mass-normalized experimental determined mode shapes. The present method differs by being based on modal data extracted by means of Operational Modal Analysis (OMA) combined with a reasonable Finite Element (FE) representation of the test structure and implemented in a scenario-based framework. Besides a review of the basic methodology this paper addresses fundamental theoretical as well as practical considerations which are crucial to the applicability of a given vibration-based damage assessment configuration. Lastly, the technique is demonstrated on an experimental test case using automated OMA. Both the numerical study as well as the experimental test case presented in this paper are restricted to perturbations concerning mass change.

State DOT use of web-based data storage.

DOT National Transportation Integrated Search

2013-01-01

This study explores the experiences of state departments of transportation (DOT) in the use of web or : cloud-based data storage and related practices. The study provides results of a survey of State DOTs : and presents best practices of state govern...

Sex disparities in diagnosis of bladder cancer after initial presentation with hematuria: a nationwide claims-based investigation.

PubMed

Cohn, Joshua A; Vekhter, Benjamin; Lyttle, Christopher; Steinberg, Gary D; Large, Michael C

2014-02-15

Women have disproportionately higher mortality rates relative to incidence for bladder cancer. Multiple etiologies have been proposed, including delayed diagnosis and treatment. Guidelines recommend ruling out malignancy in men and women presenting with hematuria. This study sought to determine the difference in timing from presentation with hematuria to diagnosis of bladder cancer in women versus men. This is a retrospective population-based study examining the timing from presentation with hematuria to diagnosis of bladder cancer, based on data from the MarketScan databases, which include enrollees of more than 100 health insurance plans of approximately 40 large US employers from 2004 through 2010. All study patients presented with hematuria and were subsequently diagnosed with bladder cancer. The primary outcome measure was number of days between initial presentation with hematuria and diagnosis of bladder cancer by sex. A total of 5416 men and 2233 women met inclusion criteria. Mean days from initial hematuria claim to bladder cancer claim was significantly longer in women (85.4 versus 73.6 days, P < .001), and the proportion of women with >6 month delay in bladder cancer diagnosis was significantly higher (17.3% versus 14.1%, P < .001). Women were more likely to be diagnosed with urinary tract infection (odds ratio = 2.32, 95% confidence interval = 2.07-2.59) and less likely to undergo abdominal or pelvic imaging (odds ratio = 0.80, 95% confidence interval = 0.71-0.89). Both men and women experience significant delays between presentation with hematuria and diagnosis of bladder cancer, with longer delays for women. This may be partly responsible for the sex-based discrepancy in outcomes associated with bladder cancer. © 2013 American Cancer Society.

Characterization of plasticized PEO-PAM blend polymer electrolyte system

NASA Astrophysics Data System (ADS)

Dave, Gargi; Kanchan, Dinesh

2017-05-01

Present study reports characterization studies of NaCF3SO3 based PEO-PAM Blend Polymer Electrolyte (BPE) system with varying amount of EC+PC as plasticizer prepared by solution cast technique. Structural analysis and surface topography have been performed using FTIR and SEM studies. To understand, thermal properties, DSC studies have been undertaken in the present paper

Predictors of public support for family presence during cardiopulmonary resuscitation: A population based study.

PubMed

Dwyer, Trudy A

2015-06-01

The debate on whether individuals want their family to be present during cardiopulmonary resuscitation continues to be a contentious issue, but there is little analysis of the predictors of the general public's opinion. The aim of this population based study was to identify factors that predict public support for having family present during cardiopulmonary resuscitation. Data for this cross-sectional population based study were collected via computer-assisted-telephone-interviews of people (n=1208) residing in Central Queensland, Australia. Participants supported family members being present should their child (75%), an adult relative (52%) or they themselves (51%) require cardiopulmonary resuscitation. Reasons cited for not wanting to be present were; distraction for the medical team (30.4%), too distressing (30%) or not known/not considered the option (19%). Sex and prior exposure to being present during the resuscitation of adults and children were both predictors of support (p<0.05). Reasons for not wanting to be present differed significantly for males and females (p=0.001). Individual support for being present during cardiopulmonary resuscitation varies according to; sex, prior exposure and if the family member who is being resuscitated is a family member, their child or the person themselves. A considerable proportion of the public have not considered nor planned for the option of being present during a cardiac arrest of an adult relative. Clinicians may find it useful to explain the experiences of other people who have been present when supporting families to make informed decisions about their involvement in emergency interventions. Copyright © 2015 Elsevier Ltd. All rights reserved.

Semantic networks based on titles of scientific papers

NASA Astrophysics Data System (ADS)

Pereira, H. B. B.; Fadigas, I. S.; Senna, V.; Moret, M. A.

2011-03-01

In this paper we study the topological structure of semantic networks based on titles of papers published in scientific journals. It discusses its properties and presents some reflections on how the use of social and complex network models can contribute to the diffusion of knowledge. The proposed method presented here is applied to scientific journals where the titles of papers are in English or in Portuguese. We show that the topology of studied semantic networks are small-world and scale-free.

Evaluation of the Efficacy of Communication-Based Treatments for Autism Spectrum Disorders: A Literature Review

ERIC Educational Resources Information Center

Brunner, Debra Lynn; Seung, HyeKyeung

2009-01-01

This literature review examines the present level of evidence in support of communication-based treatments for children with autism spectrum disorders. Reviews to date have reported on research published through 2002. The current article included 36 studies published between 2002 and 2007. Best available evidence is presented for seven treatment…

The Past, the Present, and the Future of Associate Degree Nursing Education.

ERIC Educational Resources Information Center

Arlton, Donna

A review of the history of associate degree nursing (ADN) education is presented, along with a discussion of contemporary problems faced by ADN educators. The paper first notes the practical, hospital-based nature of early nursing education programs; reviews early studies calling for school-based programs to prepare nurses for different levels of…

Family Care for Persons with Developmental Disabilities: A Growing Commitment.

ERIC Educational Resources Information Center

Agosta, J. M., Ed.; Bradley, V. J., Ed.

The report presents findings from a study of family-based care for persons with developmental disabilities. The first of four parts introduces the problems of family-based care and presents perspectives of parents and of persons with developmental disabilities. Part 2, on responding to the needs of families, includes a review of historical and…

Prevalence and Implementation Fidelity of Research-Based Prevention Programs in Public Schools. Final Report

ERIC Educational Resources Information Center

Crosse, Scott; Williams, Barbara; Hagen, Carol A.; Harmon, Michele; Ristow, Liam; DiGaetano, Ralph; Broene, Pamela; Alexander, Debbie; Tseng, Margaret; Derzon, James H.

2011-01-01

This report presents descriptive information about the prevalence and quality of implementation of research-based programs from the Study of the Implementation of Research-Based Programs to Prevent Youth Substance Abuse and School Crime. The study found that, while schools reported implementing a large number of prevention programs during the…

Web-Based Learning Programs: Use by Learners with Various Cognitive Styles

ERIC Educational Resources Information Center

Chen, Ling-Hsiu

2010-01-01

To consider how Web-based learning program is utilized by learners with different cognitive styles, this study presents a Web-based learning system (WBLS) and analyzes learners' browsing data recorded in the log file to identify how learners' cognitive styles and learning behavior are related. In order to develop an adapted WBLS, this study also…

Study and Labour Market Effects of Graduate Students' Interaction with Work Organisations during Education: A Cohort Study

ERIC Educational Resources Information Center

Thune, Taran; Støren, Liv Anne

2015-01-01

Purpose: The purpose of this paper is to present an empirically based discussion of how cooperation between higher education institutions and work organisations (WOs) can increase graduate learning experiences and employability. Design/methodology/approach: Data are based on an electronic and mail-based graduate survey among Norwegian master's…

Disturbance of DNA conformation by the binding of testosterone-based platinum drugs via groove-face and intercalative interactions: a molecular dynamics simulation study

PubMed Central

2013-01-01

Background To explore novel platinum-based anticancer agents that are distinct from the structure and interaction mode of the traditional cisplatin by forming the bifunctional intrastrand 1,2 GpG adduct, the monofunctional platinum + DNA adducts with extensive non-covalent interactions had been studied. It was reported that the monofunctional testosterone-based platinum(II) agents present the high anticancer activity. Moreover, it was also found that the testosterone-based platinum agents could cause the DNA helix to undergo significant unwinding and bending over the non-testosterone-based platinum agents. However, the interaction mechanisms of these platinum agents with DNA at the atomic level are not yet clear so far. Results In the present work, we used molecular dynamics (MD) simulations and DNA conformational dynamics calculations to study the DNA distortion properties of the testosterone-based platinum + DNA, the improved testosterone-based platinum + DNA and the non-testosterone-based platinum + DNA adducts. The results show that the intercalative interaction of the improved flexible testosterone-based platinum agent with DNA molecule could cause larger DNA conformational distortion than the groove-face interaction of the rigid testosterone-based platinum agent with DNA molecule. Further investigations for the non-testosterone-based platinum agent reveal the occurrence of insignificant change of DNA conformation due to the absence of testosterone ligand in such agent. Based on the DNA dynamics analysis, the DNA base motions relating to DNA groove parameter changes and hydrogen bond destruction of DNA base pairs were also discussed in this work. Conclusions The flexible linker in the improved testosterone-based platinum agent causes an intercalative interaction with DNA in the improved testosterone-based platinum + DNA adduct, which is different from the groove-face interaction caused by a rigid linker in the testosterone-based platinum agent. The present investigations provide useful information of DNA conformation affected by a testosterone-based platinum complex at the atomic level. PMID:23517640

Real-Time Peer Review: An Innovative Feature to an Evidence-Based Practice Conference

PubMed Central

Eldredge, Jonathan D.; Phillips, Holly E.; Kroth, Philip J.

2013-01-01

Many health sciences librarians as well as other professionals attend conferences on a regular basis. This study sought to link an innovative peer review process of presented research papers to long-term conference outcomes in the peer-reviewed professional journal literature. An evidence-based conference included a proof-of-concept study to gauge the long-term outcomes from research papers presented during the program. Real-time peer review recommendations from the conference were linked to final versions of articles published in the peer-reviewed literature. The real-time peer review feedback served as the basis for further mentoring to guide prospective authors toward publishing their research results. These efforts resulted in the publication of two of the four research papers in the peer-viewed literature. A third presented paper appeared in a blog because the authors wanted to disseminate their findings more quickly than through the journal literature. The presenters of the fourth paper never published their study. Real-time peer review from this study can be adapted to other professional conferences that include presented research papers. PMID:24180649

An inverse problem strategy based on forward model evaluations: Gradient-based optimization without adjoint solves

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

Aguilo Valentin, Miguel Alejandro

2016-07-01

This study presents a new nonlinear programming formulation for the solution of inverse problems. First, a general inverse problem formulation based on the compliance error functional is presented. The proposed error functional enables the computation of the Lagrange multipliers, and thus the first order derivative information, at the expense of just one model evaluation. Therefore, the calculation of the Lagrange multipliers does not require the solution of the computationally intensive adjoint problem. This leads to significant speedups for large-scale, gradient-based inverse problems.

Field and Simulator Evaluations of a PC-Based Attention Maintenance Training Program

DOT National Transportation Integrated Search

2011-07-01

This report presents the results of three research studies regarding driver distraction from the forward roadway due to : secondary in-vehicle tasks. Study 1 included the development and evaluation of a PC-based training program named : FOrward Conce...

Barriers of the Development of Web-Based Training in Agricultural Higher Education System in Iran: A Case Study of Hamadan Bu Ali Sina University, Iran

ERIC Educational Resources Information Center

Saadi, Heshmatollah; Mirzayi, Khalil; Movahedi, Reza

2016-01-01

Recently, higher education systems seek to use network-based and Internet-based information technologies in education, teaching and learning. E-learning in Iran higher education system has been started since 2003, however, its development has been very slow. The present study is a survey research. The participants of the study are faculty members,…

The Effectiveness of Digital Game-Based Vocabulary Learning: A Framework-Based View of Meta-Analysis

ERIC Educational Resources Information Center

Chen, Meng-Hua; Tseng, Wen-Ta; Hsiao, Tsung-Yuan

2018-01-01

This study presents the results of a meta-analytic study about the effects of digital game-based learning (DGBL) on vocabulary. The results of the study showed that the effects of DGBL on vocabulary learning may vary with game design features (Q = 5.857, df = 1, p = 0.016), but not with learners' age (Q = 0.906, df = 1, p = 0.341) or linguistic…

The Effect of Constructivist Learning Principles Based Learning Materials to Students' Attitudes, Success and Retention in Social Studies

ERIC Educational Resources Information Center

Karaduman, Hidir; Gultekin, Mehmet

2007-01-01

The present study aims to investigate whether the learning materials that based on constructivist learning principles have an effect on fifth grade Social Studies students' attitudes, their academic success and their retention. The study was conducted at Sehit Ali Gaffar Okkan Elementary School, Eskisehir. The participants of the study were 5th…

Post-buckling of a pressured biopolymer spherical shell with the mode interaction

NASA Astrophysics Data System (ADS)

Zhang, Lei; Ru, C. Q.

2018-03-01

Imperfection sensitivity is essential for mechanical behaviour of biopolymer shells characterized by high geometric heterogeneity. The present work studies initial post-buckling and imperfection sensitivity of a pressured biopolymer spherical shell based on non-axisymmetric buckling modes and associated mode interaction. Our results indicate that for biopolymer spherical shells with moderate radius-to-thickness ratio (say, less than 30) and smaller effective bending thickness (say, less than 0.2 times average shell thickness), the imperfection sensitivity predicted based on the axisymmetric mode without the mode interaction is close to the present results based on non-axisymmetric modes with the mode interaction with a small (typically, less than 10%) relative errors. However, for biopolymer spherical shells with larger effective bending thickness, the maximum load an imperfect shell can sustain predicted by the present non-axisymmetric analysis can be significantly (typically, around 30%) lower than those predicted based on the axisymmetric mode without the mode interaction. In such cases, a more accurate non-axisymmetric analysis with the mode interaction, as given in the present work, is required for imperfection sensitivity of pressured buckling of biopolymer spherical shells. Finally, the implications of the present study to two specific types of biopolymer spherical shells (viral capsids and ultrasound contrast agents) are discussed.

"We Are so over Pharaohs and Pyramids!" "Re"-Presenting the "Othered" Lives with Young People through an International Studies Program

ERIC Educational Resources Information Center

Lee, Mimi Miyoung

2010-01-01

Based on a year-long implementation of an international studies program in a rural middle school using videoconferencing technology, this paper focuses the international presenters' interpretation of and reaction to the program through their interaction with the students. Attention here is paid to the ways that the presenters' assumptions and…

UV shielding with visible transparency based properties of poly (styrene-co-acrylonitrile)/Ag doped ZnO nanocomposite

NASA Astrophysics Data System (ADS)

Singh, Rajender; Verma, Karan; Singh, Tejbir; Barman, P. B.; Sharma, Dheeraj

2018-02-01

Development of ultraviolet (UV) shielding with visible transparency based thermoplastic polymer nanocomposite (PNs) presents an important requisite in terms of their efficiency and cost. Present study contributed for the same approach by dispersion of Ag doped ZnO nanoparticles upto 10 wt% in poly (styrene-co-acrylonitrile) matrix by insitu emulsion polymerization method. The crystal and chemical structure of PNs has been analyzed by x-ray diffraction (XRD) and fourier infrared spectrometer (FTIR) techniques. The morphological and elemental information of synthesized nanomaterial has been studied by field emission scanning electron microscope (FESEM) and energy dispersive spectroscopy (EDS) technique. The optical properties of PNs has been studied by UV-visible spectroscopy technique. The incorporation of nanoparticles in polymer matrix absorb the complete UV light with visible transparency. The present reported polymer nanocomposite (PNs) have tuned refractive index with UV blocking and visible transparency based properties which can serve as a viable alternative as compared to related conventional materials.

Psychosocial Adaptation to Chronic Illness and Disability: A Virtue Based Model.

PubMed

Kim, Jeong Han; McMahon, Brian T; Hawley, Carolyn; Brickham, Dana; Gonzalez, Rene; Lee, Dong-Hun

2016-03-01

Psychosocial adaptation to chronic illness and disability (CID) is an area of study where a positive psychology perspective, especially the study of virtues and character strengths, can be implemented within the rehabilitation framework. A carefully developed theory to guide future interdisciplinary research is now timely. A traditional literature review between philosophy and rehabilitation psychology was conducted in order to develop a virtue-based psychosocial adaptation theory, merging important perspectives from the fields of rehabilitation and positive psychology. The virtue-based psychosocial adaptation model (V-PAM) to CID is proposed in the present study. The model involves five qualities or constructs: courage, practical wisdom, commitment to action, integrity and emotional transcendence. Each of these components of virtue contributes to an understanding of psychosocial adaptation. The present study addresses the implications and applications of V-PAM that will advance this understanding.

Contextual Priming in Semantic Anomia: A Case Study

ERIC Educational Resources Information Center

Renvall, Kati; Laine, Matti; Martin, Nadine

2005-01-01

The present case continues the series of anomia treatment studies with contextual priming (CP), being the second in-depth treatment study conducted for an individual suffering from semantically based anomia. Our aim was to acquire further evidence of the facilitation and interference effects of the CP treatment on semantic anomia. Based on the…

Efficacy of Group Based Learning in Learning Moral Value

ERIC Educational Resources Information Center

Singaravelu, G.

2008-01-01

The present study highlights the efficacy of Group Based Learning on cultivating moral value of the students at Standard VIII. Parallel group Experimental method was adopted in the study. Eighty students (control group = 40 students + experimental = 40 students) were selected as sample for the study. Researcher self-made achievement tool was…

Operationalizing Levels of Academic Mastery Based on Vygotsky's Theory: The Study of Mathematical Knowledge

ERIC Educational Resources Information Center

Nezhnov, Peter; Kardanova, Elena; Vasilyeva, Marina; Ludlow, Larry

2015-01-01

The present study tested the possibility of operationalizing levels of knowledge acquisition based on Vygotsky's theory of cognitive growth. An assessment tool (SAM-Math) was developed to capture a hypothesized hierarchical structure of mathematical knowledge consisting of procedural, conceptual, and functional levels. In Study 1, SAM-Math was…

Rates of self-harm presenting to general hospitals: a comparison of data from the Multicentre Study of Self-Harm in England and Hospital Episode Statistics

PubMed Central

Turnbull, Pauline; Hawton, Keith; Geulayov, Galit; Waters, Keith; Ness, Jennifer; Townsend, Ellen; Khundakar, Kazem; Kapur, Nav

2016-01-01

Objective Rates of hospital presentation for self-harm in England were compared using different national and local data sources. Design The study was descriptive and compared bespoke data collection methods for recording self-harm presentations to hospital with routinely collected hospital data. Setting Local area data on self-harm from the 3 centres of the Multicentre Study of Self-harm in England (Oxford, Manchester and Derby) were used along with national and local routinely collected data on self-harm admissions and emergency department attendances from Hospital Episode Statistics (HES). Primary outcome Rate ratios were calculated to compare rates of self-harm generated using different data sources nationally and locally (between 2010 and 2012) and rates of hospital presentations for self-harm were plotted over time (between 2003 and 2012), based on different data sources. Results The total number of self-harm episodes between 2010 and 2012 was 13 547 based on Multicentre Study data, 9600 based on HES emergency department data and 8096 based on HES admission data. Nationally, routine HES data underestimated overall rates of self-harm by approximately 60% compared with rates based on Multicentre Study data (rate ratio for HES emergency department data, 0.41 (95% CI 0.35 to 0.49); rate ratio for HES admission data, 0.42 (95% CI 0.36 to 0.49)). Direct local area comparisons confirmed an overall underascertainment in the HES data, although the difference varied between centres. There was a general increase in self-harm over time according to HES data which contrasted with a fall and then a rise in the Multicentre Study data. Conclusions There was a consistent underestimation of presentations for self-harm recorded by HES emergency department data, and fluctuations in year-on-year figures. HES admission data appeared more reliable but missed non-admitted episodes. Routinely collected data may miss important trends in self-harm and cannot be used in isolation as the basis for a robust national indicator of self-harm. PMID:26883238

Bilingual Control: Sequential Memory in Language Switching

ERIC Educational Resources Information Center

Declerck, Mathieu; Philipp, Andrea M.; Koch, Iring

2013-01-01

To investigate bilingual language control, prior language switching studies presented visual objects, which had to be named in different languages, typically indicated by a visual cue. The present study examined language switching of predictable responses by introducing a novel sequence-based language switching paradigm. In 4 experiments,…

Design-Based Research and Video Game Based Learning: Developing the Educational Video Game "Citizen Science"

ERIC Educational Resources Information Center

Gaydos, Matthew J.

2013-01-01

This paper presents a series of studies detailing the research and development of the educational science video game "Citizen Science." It documents the design process, beginning with the initial grant and ending with a case study of two teachers who used the game in their classrooms. Following a design-based research approach, this…

A Factorial Analysis of Timed and Untimed Measures of Mathematics and Reading Abilities in School Aged Twins

ERIC Educational Resources Information Center

Hart, Sara A.; Petrill, Stephen A.; Thompson, Lee A.

2010-01-01

The present study examined the phenotypic and genetic relationship between fluency and non-fluency-based measures of reading and mathematics performance. Participants were drawn from the Western Reserve Reading and Math Project, an ongoing longitudinal twin project of same-sex MZ and DZ twins from Ohio. The present analyses are based on…

The 1980 Large space systems technology. Volume 2: Base technology

NASA Technical Reports Server (NTRS)

Kopriver, F., III (Compiler)

1981-01-01

Technology pertinent to large antenna systems, technology related to large space platform systems, and base technology applicable to both antenna and platform systems are discussed. Design studies, structural testing results, and theoretical applications are presented with accompanying validation data. A total systems approach including controls, platforms, and antennas is presented as a cohesive, programmatic plan for large space systems.

Description of the Large-Gap Magnetic Suspension System (LGMSS) ground based experiment

NASA Technical Reports Server (NTRS)

Groom, Nelson J.

1991-01-01

An overview of the Large Gap Magnetic Suspension System (LGMSS) ground-based experiment is provided. A description of the experiment, as originally defined, and the experiment objectives and potential applications of the technology resulting from the experiment are presented. Also, the results of two studies which were conducted to investigate the feasibility of implementing the experiment are presented and discussed. Finally, a description of the configuration which was selected for the experiment is described, and a summary of the paper is presented.

Single walled boron nitride nanotube-based biosensor: an atomistic finite element modelling approach.

PubMed

Panchal, Mitesh B; Upadhyay, Sanjay H

2014-09-01

The unprecedented dynamic characteristics of nanoelectromechanical systems make them suitable for nanoscale mass sensing applications. Owing to superior biocompatibility, boron nitride nanotubes (BNNTs) are being increasingly used for such applications. In this study, the feasibility of single walled BNNT (SWBNNT)-based bio-sensor has been explored. Molecular structural mechanics-based finite element (FE) modelling approach has been used to analyse the dynamic behaviour of SWBNNT-based biosensors. The application of an SWBNNT-based mass sensing for zeptogram level of mass has been reported. Also, the effect of size of the nanotube in terms of length as well as different chiral atomic structures of SWBNNT has been analysed for their sensitivity analysis. The vibrational behaviour of SWBNNT has been analysed for higher-order modes of vibrations to identify the intermediate landing position of biological object of zeptogram scale. The present molecular structural mechanics-based FE modelling approach is found to be very effectual to incorporate different chiralities of the atomic structures. Also, different boundary conditions can be effectively simulated using the present approach to analyse the dynamic behaviour of the SWBNNT-based mass sensor. The presented study has explored the potential of SWBNNT, as a nanobiosensor having the capability of zeptogram level mass sensing.

The Use of Interactive Computer Animations Based on POE as a Presentation Tool in Primary Science Teaching

NASA Astrophysics Data System (ADS)

Akpınar, Ercan

2014-08-01

This study investigates the effects of using interactive computer animations based on predict-observe-explain (POE) as a presentation tool on primary school students' understanding of the static electricity concepts. A quasi-experimental pre-test/post-test control group design was utilized in this study. The experiment group consisted of 30 students, and the control group of 27 students. The control group received normal instruction in which the teacher provided instruction by means of lecture, discussion and homework. Whereas in the experiment group, dynamic and interactive animations based on POE were used as a presentation tool. Data collection tools used in the study were static electricity concept test and open-ended questions. The static electricity concept test was used as pre-test before the implementation, as post-test at the end of the implementation and as delay test approximately 6 weeks after the implementation. Open-ended questions were used at the end of the implementation and approximately 6 weeks after the implementation. Results indicated that the interactive animations used as presentation tools were more effective on the students' understanding of static electricity concepts compared to normal instruction.

Clinical presentation of intraocular retinoblastoma; 5-year hospital-based registry in Egypt.

PubMed

El Zomor, Hossam; Nour, Radwa; Alieldin, Adel; Taha, Hala; Montasr, Mohamed M; Moussa, Emad; El Nadi, Enas; Ezzat, Sameera; Alfaar, Ahmad S

2015-12-01

To study the presenting signs of Retinoblastoma in Egypt at Egypt's main pediatric oncology referral center. This is a prospective descriptive study (hospital-based registry) conducted at Children's Cancer Hospital Egypt between July 2007 and December 2012. Out of 262 patients diagnosed with retinoblastoma, 244 were suffering from intra-ocular disease at presentation. One hundred thirty-nine (57%) patients presented with unilateral disease, while 105 (43%) suffered bilateral disease. The mean age at presentation was 20.6 ± 17 months, averaging 18.87 ± 11.76 months for bilateral and 25.72 ± 18.78 months for unilateral disease. The most common clinical presentation was leukocoria in 180 (73.8%) patients, strabismus in 32 (13.1%) patients and decreased visual acuity in 12 (4.9%) patients. Group D and E disease represented 62% of all affected eyes. Patients with advanced disease (Group C-E) had longer duration of symptoms. In Egypt, retinoblastoma patients present more frequently with advanced disease. There is an ever-increasing need to develop a national team dedicated to studying disease significance and formulating a national awareness program. Copyright © 2015 The Authors. Production and hosting by Elsevier B.V. All rights reserved.

Gender differences in the management of acute coronary syndrome patients: One year results from HPIAR (HP-India ACS Registry).

PubMed

Mahajan, Kunal; Negi, Prakash Chand; Merwaha, Rajeev; Mahajan, Nitin; Chauhan, Vivek; Asotra, Sanjeev

2017-12-01

Data from high-income countries suggest that women receive less intensive diagnostic and therapeutic management than men for acute coronary syndrome (ACS). There is a paucity of such data in the Indian population, which is 69% rural and prior studies focused mostly on urban populations. The objective of the present study was to identify the gender based differences in ACS management, if any, in a predominantly rural population. Data from 35 hospitals across Himachal Pradesh covering >90% of state population were collected for one year (July 2015-June 2016). A total of 2118 ACS subjects met inclusion criteria and baseline characteristics, in-hospital treatments and mortality rates were analyzed. Women constituted less than one-third of ACS population. Women were older compared to men and were more likely to present with NSTEMI/UA. Misinterpretation of initial symptoms and late presentation were also common in women. Fewer women received optimal guideline based treatment and PCI (0.9% vs 4.2%, p<0.01). Compare to men, women more often had Killip class >1 (27.3% vs 20.4%, p<0.01) and higher in-hospital mortality (8.5% vs 5.6%, p=0.009). On multivariate analysis the association between female gender and mortality was attenuated (adjusted odds ratio [OR]=1.36 [0.77-2.38]). The present study from India, is the first of its kind to evaluate the gender based differences among ACS patients, in a predominantly rural population. Our analysis demonstrates a significant gender based difference between symptom awareness and delay in presentation, management and in-hospital outcome. Further studies are warranted across other parts of country to investigate this gender disparity. Copyright © 2017 Elsevier B.V. All rights reserved.

Novel diamide-based inhibitors of IMPDH.

PubMed

Gu, Henry H; Iwanowicz, Edwin J; Guo, Junqing; Watterson, Scott H; Shen, Zhongqi; Pitts, William J; Dhar, T G Murali; Fleener, Catherine A; Rouleau, Katherine; Sherbina, N Z; Witmer, Mark; Tredup, Jeffrey; Hollenbaugh, Diane

2002-05-06

A series of novel amide-based small molecule inhibitors of inosine monophosphate dehydrogenase is described. The synthesis and the structure-activity relationships (SARs) derived from in vitro studies are presented.

Validation of a Glucocorticoid Receptor Effects-Based Environmental Sample Screening Tool

EPA Science Inventory

Abstract describing study and results that will be presented in a seminar presentation to members of UNC-Chapel Hill Curriculum in Toxicology. This seminar presentation will be fulfilling the requirements of the USEPA-UNC Toxicology Cooperative Postdoctoral Training program.

An Exploratory Analysis of Projected Navy Officer Inventory Strength Using Data Farming

DTIC Science & Technology

2016-09-01

model’s run-time. 3. Base Case In addition to the experimental design, this study includes a base case scenario to serve as a baseline for comparison...47 3. SWO Operating Strength Deviation-Base Case One objective of this study is to determine the risk in operating strength deviation presented by...ANSWERS TO RESEARCH QUESTIONS ................................... 71  B.  RECOMMENDATIONS FOR FUTURE STUDIES ......................... 73  1.  Continuous

The Effect of Gender on Motivation and Student Achievement in Digital Game-Based Learning: A Case Study of a Contented-Based Classroom

ERIC Educational Resources Information Center

Chung, Liang-Yi; Chang, Rong-Chi

2017-01-01

This study attempts to probe into the impact of learners' gender on learning outcomes and motivation. A digital game focusing on the topic of emergency first aid is designed for the purpose of this present study, according to the curriculum objectives for a content-based instruction (CBI) course as part of the experiment. In the process of playing…

Experiential Learning-Based vs. Lecture-Based Discussion: The Impact of Degree of Participation and Student Characteristics on Comprehension and Retention.

ERIC Educational Resources Information Center

Specht, Pamela Hammers

1985-01-01

The article describes a study conducted to determine whether experiential learning-based discussion is more effective than lecture-based discussion in facilitating understanding of material presented in a typical undergraduate business course, specifically organizational communication networks. (CT)

Relationship between Preferred and Actual Opinions about Inquiry-Based Instruction Classroom

ERIC Educational Resources Information Center

Nuangchalerm, Prasart

2017-01-01

Based on 10 preservice science teachers in 4 schools, this study presents a detailed analysis of how preservice teacher expectation interacts with school practicum and authentic classroom action of inquiry-based instruction. Classroom observation, lesson plan analysis, and interviews revealed that inquiry-based instruction in the expectation and…

Strength of Ethnic Identification and Intergenerational Mobility Aspirations Among Mexican American Youth.

ERIC Educational Resources Information Center

Kuvlesky, William P.; Patella, Victoria M.

Utilizing Talcott Parsons' data from a 1967 study of 4 South Texas counties, the present study involves 596 Mexican American high school sophomores and is based on Parsons' assertion that Spanish American subculture is characterized by the particularism-ascription value pattern. In keeping with this, the present study hypothesized that degree of…

Writing Disposition of Student Convict and Prisoners Attending Distant Education Secondary Education School

ERIC Educational Resources Information Center

Altunkaya, Hatice; Erdem, Ilhan

2017-01-01

The aim of the present study is to examine the writing disposition of convicts and prisoners in Silivri Penal Institution Compound who study at Open Education Secondary School based on various variables. In the present study, "Writing Disposition Scale" that includes 21 5-point Likert type items, developed by Piazza and Siebert (2008)…

Critical Pedagogy and Materials Development: Content Selection and Gradation

ERIC Educational Resources Information Center

Rahimi, Ali; Kushki, Ali; Ansaripour, Ehsan; Maki, Ardeshir

2015-01-01

The study aimed at presenting how materials developers can design materials based on the tenets of Critical Pedagogy (CP). Having reviewed the literature on CP, the present study attempted to propose ideas for the selection and gradation phase of Materials Development in line with the tenets of CP. The distinguishing feature of the study was to…

Using Case Study Multi-Methods to Investigate Close(r) Collaboration: Course-Based Tutoring and the Directive/Nondirective Instructional Continuum

ERIC Educational Resources Information Center

Corbett, Steven J.

2011-01-01

This essay presents case studies of "course-based tutoring" (CBT) and one-to-one tutorials in two sections of developmental first-year composition (FYC) at a large West Coast research university. The author's study uses a combination of rhetorical and discourse analyses and ethnographic and case study multi-methods to investigate both…

Space tug economic analysis study. Volume 2: Tug concepts analysis. Appendix: Tug design and performance data base

NASA Technical Reports Server (NTRS)

1972-01-01

The tug design and performance data base for the economic analysis of space tug operation are presented. A compendium of the detailed design and performance information from the data base is developed. The design data are parametric across a range of reusable space tug sizes. The performance curves are generated for selected point designs of expendable orbit injection stages and reusable tugs. Data are presented in the form of graphs for various modes of operation.

Aspects of Quality of Life in Adults Diagnosed with Autism in Childhood: A Population-Based Study

ERIC Educational Resources Information Center

Billstedt, Eva; Gillberg, I. Carina; Gillberg, Christopher

2011-01-01

The present study is a long-term prospective follow-up study of a population-based cohort of 120 individuals diagnosed with autism in childhood, followed into late adolescence/early adulthood. Specific aims of the study were to attempt to measure and study social aspects/quality of life in those 108 individuals with autism alive and available for…

Stroke Risk After Non-Stroke ED Dizziness Presentations: A Population-Based Cohort Study

PubMed Central

Kerber, Kevin A.; Zahuranec, Darin B.; Brown, Devin L.; Meurer, William J.; Burke, James F.; Smith, Melinda A.; Lisabeth, Lynda D.; Fendrick, A. Mark; McLaughlin, Thomas; Morgenstern, Lewis B.

2014-01-01

Objective Acute stroke is a serious concern in Emergency Department (ED) dizziness presentations. Prior studies, however, suggest that stroke is actually an unlikely cause of these presentations. Lacking are data on short- and long-term follow-up from population-based studies to establish stroke risk after presumed non-stroke ED dizziness presentations. Methods From 5/8/2011 to 5/7/2012, patients ≥ 45 years of age presenting to EDs in Nueces County, Texas, with dizziness, vertigo, or imbalance were identified, excluding those with stroke as the initial diagnosis. Stroke events after the ED presentation up to 10/2/2012 were determined using the Brain Attack Surveillance in Corpus Christi (BASIC) study, which uses rigorous surveillance and neurologist validation. Cumulative stroke risk was calculated using Kaplan-Meier estimates. Results 1,245 patients were followed for a median of 347 days (IQR 230- 436 days). Median age was 61.9 years (IQR, 53.8-74.0 years). After the ED visit, fifteen patients (1.2%) had a stroke. Stroke risk was 0.48% (95% CI, 0.22%-1.07%) at 2 days; 0.48% (95% CI, 0.22%-1.07%) at 7 days; 0.56% (95% CI, 0.27%-1.18%) at 30 days; 0.56% (95% CI, 0.27%-1.18%) at 90 days; and 1.42% (95% CI, 0.85%-2.36%) at 12 months. Interpretation Using rigorous case ascertainment and outcome assessment in a population-based design, we found that the risk of stroke after presumed non-stroke ED dizziness presentations is very low, supporting a non-stroke etiology to the overwhelming majority of original events. High-risk subgroups likely exist, however, because most of the 90-day stroke risk occurred within 2-days. Vascular risk stratification was insufficient to identify these cases. PMID:24788511

A re-evaluation of project pride, a redesigned school-based drug abuse prevention program.

PubMed

LoSciuto, Leonard; Steinman, Ross B

2004-01-01

The present study examined the effectiveness of Project PRIDE, a school-based, counselor-administered, drug and alcohol prevention program. The study is presented in the context of Project PRIDE'S efforts to keep itself current and effective via continual evaluation-based development. In this outcome evaluation, Project PRIDE participants demonstrated greater pretest to posttest gains on five of six outcome measures compared to control students, although many of the changes were small or moderate and only two were statistically significant. Further, as predicted, gains in more factual or objective areas of the program were greater than in more subjective areas dealing with student perceptions and feelings. The limitations and implications of the findings are discussed. Also discussed are the advantages of the Binomial Effect Size Display as a data presentation mode that promotes both client and general audience understanding of results.

Determinants of Effective Communication among Undergraduate Students

ERIC Educational Resources Information Center

Anvari, Roya; Atiyaye, Dauda Mohammed

2014-01-01

This study aims to investigate the relationship between effective communication and transferring information. In the present correlational study, a cross-sectional research design was employed, and data were collected using a questionnaire-based survey. 46 students were chosen based on random sampling and questionnaires were distributed among…

Web-Based Teacher Training and Coaching/Feedback: A Case Study

ERIC Educational Resources Information Center

Wilczynski, Susan M.; Labrie, Allison; Baloski, Ann; Kaake, Amanda; Marchi, Nick; Zoder-Martell, Kimberly

2017-01-01

The present case study evaluated web-based training with coaching and feedback delivered through videoconferencing software to increase teacher use of behavioral methods associated with increased compliance. The participant, a preschool special education teacher, increased both her knowledge of efficacious interventions for autism spectrum…

Solwnd: A 3D Compressible MHD Code for Solar Wind Studies. Version 1.0: Cartesian Coordinates

NASA Technical Reports Server (NTRS)

Deane, Anil E.

1996-01-01

Solwnd 1.0 is a three-dimensional compressible MHD code written in Fortran for studying the solar wind. Time-dependent boundary conditions are available. The computational algorithm is based on Flux Corrected Transport and the code is based on the existing code of Zalesak and Spicer. The flow considered is that of shear flow with incoming flow that perturbs this base flow. Several test cases corresponding to pressure balanced magnetic structures with velocity shear flow and various inflows including Alfven waves are presented. Version 1.0 of solwnd considers a rectangular Cartesian geometry. Future versions of solwnd will consider a spherical geometry. Some discussions of this issue is presented.

Effective Use of Audio Media in Multimedia Presentations.

ERIC Educational Resources Information Center

Kerr, Brenda

This paper emphasizes research-based reasons for adding audio to multimedia presentations. The first section summarizes suggestions from a review of research on the effectiveness of audio media when accompanied by other forms of media; types of research studies (e.g., evaluation, intra-medium, and aptitude treatment interaction studies) are also…

The PLATO System and Language Study.

ERIC Educational Resources Information Center

Hart, Robert S., Ed.

1981-01-01

This issue presents an overview of research in computer-based language instruction using the PLATO IV computer system. The following articles are presented: (1) "Language Study and the PLATO system," by R. Hart; (2) "Reflections on the Use of Computers in Second-Language Acquisition," by F. Marty; (3) "Computer-Based…

A Decision Processing Algorithm for CDC Location Under Minimum Cost SCM Network

NASA Astrophysics Data System (ADS)

Park, N. K.; Kim, J. Y.; Choi, W. Y.; Tian, Z. M.; Kim, D. J.

Location of CDC in the matter of network on Supply Chain is becoming on the high concern these days. Present status of methods on CDC has been mainly based on the calculation manually by the spread sheet to achieve the goal of minimum logistics cost. This study is focused on the development of new processing algorithm to overcome the limit of present methods, and examination of the propriety of this algorithm by case study. The algorithm suggested by this study is based on the principle of optimization on the directive GRAPH of SCM model and suggest the algorithm utilizing the traditionally introduced MST, shortest paths finding methods, etc. By the aftermath of this study, it helps to assess suitability of the present on-going SCM network and could be the criterion on the decision-making process for the optimal SCM network building-up for the demand prospect in the future.

Determinants of Internet Use for Interactive Learning: An Exploratory Study

ERIC Educational Resources Information Center

Castaño, Jonatan; Duart, Josep M.; Sancho-Vinuesa, Teresa

2015-01-01

The use of the Internet in higher education teaching can facilitate the interactive learning process and thus improve educational outcomes. The aim of the study presented here is to explore which variables are linked to higher intensity of Internet-based interactive educational practices. The study is based on data obtained from an online survey…

Re-Exploring Game-Assisted Learning Research: The Perspective of Learning Theoretical Bases

ERIC Educational Resources Information Center

Wu, Wen-Hsiung; Chiou, Wen-Bin; Kao, Hao-Yun; Hu, Chung-Hsing Alex; Huang, Sih-Han

2012-01-01

Previous literature reviews or meta-analysis based studies on game-assisted learning have provided important results, but few studies have considered the importance of learning theory, and coverage of papers after 2007 is scant. This study presents a systematic review of the literature using a meta-analysis approach to provide a more comprehensive…

Community-Based Financial Literacy Education in a Cultural Context: A Study of Teacher Beliefs and Pedagogical Practice

ERIC Educational Resources Information Center

Tisdell, Elizabeth J.; Taylor, Edward W.; Forte, Karin Sprow

2013-01-01

This article presents the findings related to teaching beliefs and pedagogical practices of a study that examined how financial literacy educators educate adults from underserved population groups in community-based settings. The study is theoretically framed in the teaching beliefs and culturally responsive education literature. Findings reveal a…

Secure base representations in middle childhood across two Western cultures: Associations with parental attachment representations and maternal reports of behavior problems.

PubMed

Waters, Theodore E A; Bosmans, Guy; Vandevivere, Eva; Dujardin, Adinda; Waters, Harriet S

2015-08-01

Recent work examining the content and organization of attachment representations suggests that 1 way in which we represent the attachment relationship is in the form of a cognitive script. This work has largely focused on early childhood or adolescence/adulthood, leaving a large gap in our understanding of script-like attachment representations in the middle childhood period. We present 2 studies and provide 3 critical pieces of evidence regarding the presence of a script-like representation of the attachment relationship in middle childhood. We present evidence that a middle childhood attachment script assessment tapped a stable underlying script using samples drawn from 2 western cultures, the United States (Study 1) and Belgium (Study 2). We also found evidence suggestive of the intergenerational transmission of secure base script knowledge (Study 1) and relations between secure base script knowledge and symptoms of psychopathology in middle childhood (Study 2). The results from this investigation represent an important downward extension of the secure base script construct. (c) 2015 APA, all rights reserved).

Secure Base Representations in Middle Childhood Across Two Western Cultures: Associations with Parental Attachment Representations and Maternal Reports of Behavior Problems

PubMed Central

Waters, Theodore E. A.; Bosmans, Guy; Vandevivere, Eva; Dujardin, Adinda; Waters, Harriet S.

2015-01-01

Recent work examining the content and organization of attachment representations suggests that one way in which we represent the attachment relationship is in the form of a cognitive script. That said, this work has largely focused on early childhood or adolescence/adulthood, leaving a large gap in our understanding of script-like attachment representations in the middle childhood period. We present two studies and provide three critical pieces of evidence regarding the presence of a script-like representation of the attachment relationship in middle childhood. We present evidence that a middle childhood attachment script assessment tapped a stable underlying script using samples drawn from two western cultures, the United States (Study 1) and Belgium (Study 2). We also found evidence suggestive of the intergenerational transmission of secure base script knowledge (Study 1) and relations between secure base script knowledge and symptoms of psychopathology in middle childhood (Study 2). The results from this investigation represent an important downward extension of the secure base script construct. PMID:26147774

The Constructivist Approach? I Have Heard about It but I Have Never Seen It: "An Example of Exploratory Sequential Mixed Design Study"

ERIC Educational Resources Information Center

Polat, Ahmet; Dogan, Soner; Demir, Selçuk Besir

2016-01-01

The present study was undertaken to investigate the quality of education based on the views of the students attending social studies education departments at the Faculties of Education and to determine the existing problems and present suggestions for their solutions. The study was conducted according to exploratory sequential mixed method. In…

The Constructivist Approach? I Have Heard about It but I Have Never Seen It "An Example of Exploratory Sequential Mixed Design Study"

ERIC Educational Resources Information Center

Polat, Ahmet; Dogan, Soner; Demir, Selçuk Besir

2016-01-01

The present study was undertaken to investigate the quality of education based on the views of the students attending social studies education departments at the Faculties of Education and to determine the existing problems and present suggestions for their solutions. The study was conducted according to exploratory sequential mixed method. In…

A Look at Research on Mobile Learning in K-12 Education from 2007 to the Present

ERIC Educational Resources Information Center

Liu, Min; Scordino, Robert; Geurtz, Renata; Navarrete, Cesar; Ko, Yujung; Lim, Mihyun

2014-01-01

The purpose of this literature review is to examine data-based studies published on mobile learning in K-12 from 2007 to the present. In total, 63 studies from 15 refereed journals were selected for analysis. The findings are organized in four themes: (a) comparison studies, (b) no comparison studies, (c) mobilized learning, and (d) academic…

Validation of a BOTDR-based system for the detection of smuggling tunnels

NASA Astrophysics Data System (ADS)

Elkayam, Itai; Klar, Assaf; Linker, Raphael; Marshall, Alec M.

2010-04-01

Cross-border smuggling tunnels enable unmonitored movement of people, drugs and weapons and pose a very serious threat to homeland security. Recently, Klar and Linker (2009) [SPIE paper No. 731603] presented an analytical study of the feasibility of a Brillouin Optical Time Domain Reflectometry (BOTDR) based system for the detection of small sized smuggling tunnels. The current study extends this work by validating the analytical models against real strain measurements in soil obtained from small scale experiments in a geotechnical centrifuge. The soil strains were obtained using an image analysis method that tracked the displacement of discrete patches of soil through a sequence of digital images of the soil around the tunnel during the centrifuge test. The results of the present study are in agreement with those of a previous study which was based on synthetic signals generated using empirical and analytical models from the literature.

Two Simon tasks with different sources of conflict: an ERP study of motion- and location-based compatibility effects.

PubMed

Galashan, Daniela; Wittfoth, Matthias; Fehr, Thorsten; Herrmann, Manfred

2008-07-01

Behavioral and electrophysiological correlates of two Simon tasks were examined using comparable stimuli but different task-irrelevant and conflict-inducing stimulus features. Whereas target shape was always the task-relevant stimulus attribute, either target location (location-based task) or motion direction within the target stimuli (motion-based task) was used as a source of conflict. Data from ten healthy participants who performed both tasks are presented. In the motion-based task the incompatible condition showed smaller P300 amplitudes at Pz than the compatible condition and the location-based task yielded a trend towards a reduced P300 amplitude in the incompatible condition. For both tasks, no P300 latency differences between the conditions were found at Pz. The results suggest that the motion-based task elicits behavioral and electrophysiological effects comparable with regular Simon tasks. As all stimuli in the motion-based Simon task were presented centrally the present data strongly argue against the attention-shifting account as an explanatory approach.

Toxicological evaluation of Cd-based fluorescent nanoprobes by means of in vivo studies

NASA Astrophysics Data System (ADS)

Farias, Patricia M. A.; Ma-Hock, Lan; Landsiedel, Robert; van Ravenzwaay, Bennard

2018-02-01

Cadmium still represents a stigma for many research- and/or industrial applications. Some deleterious effects are attributed to Cadmium. In the present work, highly fluorescent Cadmium sulfide quantum dots are investigated by e.g. physical-chemical characterization. Most important however is their application as fluorescent probes for bio-imaging in living cells and tissues. This work presents their toxicological evaluation by means of in vivo studies. Bio-imaging experiments are performed without any pre-treatment. The toxicological studies performed, strongly indicate that the use of Cadmium based nanoparticles as fluorescent probes may be nonhazardous and not induce side effects for cells/tissues.

On the Prevalence of Alternative Conceptions on Acid-Base Chemistry among Secondary Students: Insights from Cognitive and Confidence Measures

ERIC Educational Resources Information Center

Hoe, Kai Yee; Subramaniam, R.

2016-01-01

This study presents an analysis of alternative conceptions (ACs) on acid--base chemistry harbored by grade 9 students in Singapore. The ACs were obtained by the development and validation of a 4-tier diagnostic instrument. It is among the very few studies in the science education literature that have focused on examining results based also on…

Effects of WOE Presentation Types Used in Pre-Training on the Cognitive Load and Comprehension of Content in Animation-Based Learning Environments

ERIC Educational Resources Information Center

Jung, Jung,; Kim, Dongsik; Na, Chungsoo

2016-01-01

This study investigated the effectiveness of various types of worked-out examples used in pre-training to optimize the cognitive load and enhance learners' comprehension of the content in an animation-based learning environment. An animation-based learning environment was developed specifically for this study. The participants were divided into…

Acceptance and Use of Game-Based Learning in Vocational Education and Training: An International Survey

ERIC Educational Resources Information Center

Schmitz, Birgit; Felicia, Patrick; Bignami, Filippo

2015-01-01

This paper presents findings from a study carried out between May and October 2013. Based on a survey, which was developed by the MoGaBa VET project partners, the study aimed at understanding the factors that influence the way vocational instructors perceive and use game-based learning. A total of 267 trainers from eight European countries took…

The Use of Wireless Technology to Augment Problem-Based Learning in Special Education Preservice Teacher Training

ERIC Educational Resources Information Center

Blackbourn, J. M.; Fillingim, Jennifer G.; McCelland, Susan; Elrod, G. Franklin; Medley, Meagan B.; Kritsonis, Mary Alice; Ray, Jan

2008-01-01

This study examines the use of wireless laptop technology to support the application of problem-based learning (PBL) in a special education methods course. This field based course used a progressive disclosure process in weekly seminars to address issues posed in a case study. Eight scenarios, all related to the case, were presented to upper level…

The Effect of Brain-Based Teaching on Young EFL Learners' Self-Efficacy

ERIC Educational Resources Information Center

Oghyanous, Parastoo Alizadeh

2017-01-01

The present study aimed to investigate the effect of brain-based teaching on the self-efficacy of young EFL learners. The initial participants of the study were 90 learners within the age range of 13-16 who were selected based on convenience sampling. Theses 90 young EFL learners were given a Flyers test the scores of which were used to choose 60…

An Empirical Study on Washback Effects of the Internet-Based College English Test Band 4 in China

ERIC Educational Resources Information Center

Wang, Chao; Yan, Jiaolan; Liu, Bao

2014-01-01

Based on Bailey's washback model, in respect of participants, process and products, the present empirical study was conducted to find the actual washback effects of the internet-based College English Test Band 4 (IB CET-4). The methods adopted are questionnaires, class observation, interview and the analysis of both the CET-4 teaching and testing…

Explorations in Using Arts-Based Self-Study Methods

ERIC Educational Resources Information Center

Samaras, Anastasia P.

2010-01-01

Research methods courses typically require students to conceptualize, describe, and present their research ideas in writing. In this article, the author describes her exploration in using arts-based techniques for teaching research to support the development of students' self-study research projects. The pedagogical approach emerged from the…

Teaching Agile Software Engineering Using Problem-Based Learning

ERIC Educational Resources Information Center

El-Khalili, Nuha H.

2013-01-01

Many studies have reported the utilization of Problem-Based Learning (PBL) in teaching Software Engineering courses. However, these studies have different views of the effectiveness of PBL. This paper presents the design of an Advanced Software Engineering course for undergraduate Software Engineering students that uses PBL to teach them Agile…

Project-Based Learning in Electronic Technology: A Case Study

ERIC Educational Resources Information Center

Li, Li

2015-01-01

A case study of project-based learning (PBL) implemented in Tianjin University of Technology and Education is presented. This multidiscipline project is innovated to meet the novel requirements of industry while keeping its traditional effectiveness in driving students to apply knowledge to practice and problem-solving. The implementation of PBL…

Reducing Cultural Barriers via Internet Courses

ERIC Educational Resources Information Center

Xing, Minjie; Spencer, Ken

2008-01-01

A Web-based learning environment has been developed to support students from China who are studying in the UK and are confronted by many cultural barriers, which may impede their academic studies. The electronic environment incorporates a number of approaches to support learning, ranging from a simple text-based presentation to more active…

Evidence-Based Practices in Outpatient Treatment for Eating Disorders

ERIC Educational Resources Information Center

Schaffner, Angela D.; Buchanan, Linda Paulk

2010-01-01

This study examined the current issues relevant to implementing evidence-based practices in the context of outpatient treatment for eating disorders. The study also examined the effectiveness of an outpatient treatment program for eating disorders among a group of 196 patients presenting with anorexia nervosa, bulimia nervosa, or eating disorder…

Promoting Post-Formal Thinking in a U.S. History Survey Course: A Problem-Based Approach

ERIC Educational Resources Information Center

Wynn, Charles T.; Mosholder, Richard S.; Larsen, Carolee A.

2016-01-01

This article presents a problem-based learning (PBL) model for teaching a college U.S. history survey course (U.S. history since 1890) designed to promote postformal thinking skills and identify and explain thinking systems inherent in adult complex problem-solving. We also present the results of a study in which the outcomes of the PBL model were…

Feasibility Study for the Use of Green, Bio-Based, Efficient Reactive Sorbent Material to Neutralize Chemical Warfare Agents

DTIC Science & Technology

2012-08-02

REPORT Feasibility study for the use of green, bio-based, efficient reactive sorbent material to neutralize chemical warfare agents 14. ABSTRACT 16...way cellulose, lignin and hemicelluloses interact as well as whole wood dissolution occurs in ILs. The present project was conducted to 1. REPORT...Feasibility study for the use of green, bio-based, efficient reactive sorbent material to neutralize chemical warfare agents Report Title ABSTRACT Over the

Analytical and experimental study of axisymmetric truncated plug nozzle flow fields

NASA Technical Reports Server (NTRS)

Muller, T. J.; Sule, W. P.; Fanning, A. E.; Giel, T. V.; Galanga, F. L.

1972-01-01

Experimental and analytical investigation of the flow field and base pressure of internal-external-expansion truncated plug nozzles are discussed. Experimental results for two axisymmetric, conical plug-cylindrical shroud, truncated plug nozzles are presented for both open and closed wake operations. These results include extensive optical and pressure data covering nozzle flow field and base pressure characteristics, diffuser effects, lip shock strength, Mach disc behaviour, and the recompression and reverse flow regions. Transonic experiments for a special planar transonic section are presented. An extension of the analytical method of Hall and Mueller to include the internal shock wave from the shroud exit is presented for closed wake operation. Results of this analysis include effects on the flow field and base pressure of ambient pressure ratio, nozzle geometry, and the ratio of specific heats. Static thrust is presented as a function of ambient pressure ratio and nozzle geometry. A new transonic solution method is also presented.

A Corpus-Based Study of Theme and Thematic Progression in English and Russian Non-Translated Texts and in Russian Translated Texts

ERIC Educational Resources Information Center

Alekseyenko, Nataliya V.

2013-01-01

The present study is a corpus-based comparative investigation of Theme and thematic progression in English and Russian. While monolingual thematic studies have a long history in Linguistics, comparative studies are relatively few, in particular for the given language pair. In addition to filling the existing gap in the field of Translation…

The Effectiveness of Blackboard-Based Blended Teaching in the Development of Academic Achievement, Study Skills and Self-Confidence among Students of Princess Nourah bint Abdulrahman University

ERIC Educational Resources Information Center

Al-Otaibi, Wadha H.

2017-01-01

The present study aimed to investigate the effectiveness of blended teaching, based on the e-learning management system "Blackboard," in the development of academic achievement, study skills and self-confidence among the students of Princess Nourah bint Abdulrahman University (PNU). The study sample consisted of (38) female students who…

Cell-Phone Use and Cancer: A Case Study Exploring the Scientific Method

ERIC Educational Resources Information Center

Colon Parrilla, Wilma V.

2007-01-01

Designed for an introductory nonmajors biology course, this case study presents students with a series of short news stories describing a scientific study of cell-phone use and its health effects. Students read the news stories and then the scientific paper they are based on, comparing the information presented by the news media to the information…

Exploring the Effects of Cultural Variables in the Implementation of Behavior-Based Safety in Two Organizations

ERIC Educational Resources Information Center

Bumstead, Alaina; Boyce, Thomas E.

2005-01-01

The present case study examines how culture can influence behavior-based safety in different organizational settings and how behavior-based safety can impact different organizational cultures. Behavior-based safety processes implemented in two culturally diverse work settings are described. Specifically, despite identical implementation plans,…

Schools and Neighborhood-Based Collaboration: Structural Resistances and Realities.

ERIC Educational Resources Information Center

Smithmier, Angela

Community-based interagency collaboration among schools and other public service agencies is one reform idea for addressing the complex conditions of children with a high level of needs. This paper presents findings of a study that explored the workings of one community-based collaboration, referred to as the Community-Based Collaboration for…

Evaluation of an Integrated Read-Out Layer Prototype

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

Abu-Ajamieh, Fayez

2011-07-01

This thesis presents evaluation results of an Integrated Read-out Layer (IRL), a proposed concept in scintillator-based calorimetry intended to meet the exceptional calorimetric requirements of the envisaged International Linear Collider (ILC). This study presents a full characterization of the prototype IRL, including exploration of relevant parameters, calibration performance, and the uniformity of response. The study represents proof of the IRL concept. Finally, proposed design enhancements are presented.

Evaluation of an Integrated Read-Out Layer Prototype

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

Abu-Ajamieh, Fayez; /NIU

2011-08-18

This thesis presents evaluation results of an Integrated Read-out Layer (IRL), a proposed concept in scintillator-based calorimetry intended to meet the exceptional calorimetric requirements of the envisaged International Linear Collider (ILC). This study presents a full characterization of the prototype IRL, including exploration of relevant parameters, calibration performance, and the uniformity of response. The study represents proof of the IRL concept. Finally, proposed design enhancements are presented.

The Impact of Evidence-Based Practice Implementation and Fidelity Monitoring on Staff Turnover: Evidence for a Protective Effect

PubMed Central

Aarons, Gregory A.; Sommerfeld, David H.; Hecht, Debra B.; Silovsky, Jane F.; Chaffin, Mark J.

2009-01-01

Staff retention is an ongoing challenge in mental health and community-based service organizations. Little is known about the impact of evidence-based practice implementation on the mental health and social service workforce. The present study examined the effect of evidence-based practice implementation and ongoing fidelity monitoring on staff retention in a children’s services system. The study took place in the context of a statewide regionally randomized effectiveness trial of an evidence-based intervention designed to reduce child neglect. Twenty-one teams consisting of 153 home-based service providers were followed over a 29 month period. Survival analyses revealed greater staff retention in the condition where the evidence-based practice was implemented along with ongoing fidelity monitoring presented to staff as supportive consultation. These results should help to allay concerns about staff retention when implementing evidence-based practices where there is good values-innovation fit and when fidelity monitoring is designed as an aid and support to service providers in providing a high standard of care for children and families. PMID:19309186

Structural properties of lead-lithium alloys

NASA Astrophysics Data System (ADS)

Khambholja, S. G.; Satikunvar, D. D.; Abhishek, Agraj; Thakore, B. Y.

2018-05-01

Lead-Lihtium alloys have found large number of applications as liquid metal coolants in nuclear reactors. Large number of experimental work is reported for this system. However, complete theoretical description is still rare. In this scenario, we in the present work report the study of ground state properties of Lead-Lithium system. The present study is performed using plane wave pseudopotential density functional theory as implemented in Quantum ESPRESSO package. The theoretical findings are in agreement with previously reported experimental data. Some conclusions are drawn based on present study, which will be helpful for a comprehensive study.

Team-Based Classroom Pedagogy Reframed: The Student Perspective

ERIC Educational Resources Information Center

Schultz, Jennifer L.; Wilson, Joel R.; Hess, Kenneth C.

2010-01-01

Postsecondary learning environments often utilize team-based pedagogical practices to challenge and support student learning outcomes. This manuscript presents the findings of a qualitative research study that analyzed the viewpoints and perceptions of group or team-based projects among undergraduate business students. Results identified five…

Application of an improved Nelson-Nguyen analysis to eccentric, arbitrary profile liquid annular seals

NASA Technical Reports Server (NTRS)

Padavala, Satyasrinivas; Palazzolo, Alan B.; Vallely, Pat; Ryan, Steve

1994-01-01

An improved dynamic analysis for liquid annular seals with arbitrary profile based on a method, first proposed by Nelson and Nguyen, is presented. An improved first order solution that incorporates a continuous interpolation of perturbed quantities in the circumferential direction, is presented. The original method uses an approximation scheme for circumferential gradients, based on Fast Fourier Transforms (FFT). A simpler scheme based on cubic splines is found to be computationally more efficient with better convergence at higher eccentricities. A new approach of computing dynamic coefficients based on external specified load is introduced. This improved analysis is extended to account for arbitrarily varying seal profile in both axial and circumferential directions. An example case of an elliptical seal with varying degrees of axial curvature is analyzed. A case study based on actual operating clearances of an interstage seal of the Space Shuttle Main Engine High Pressure Oxygen Turbopump is presented.

Cloud-based Monte Carlo modelling of BSSRDF for the rendering of human skin appearance (Conference Presentation)

NASA Astrophysics Data System (ADS)

Doronin, Alexander; Rushmeier, Holly E.; Meglinski, Igor; Bykov, Alexander V.

2016-03-01

We present a new Monte Carlo based approach for the modelling of Bidirectional Scattering-Surface Reflectance Distribution Function (BSSRDF) for accurate rendering of human skin appearance. The variations of both skin tissues structure and the major chromophores are taken into account correspondingly to the different ethnic and age groups. The computational solution utilizes HTML5, accelerated by the graphics processing units (GPUs), and therefore is convenient for the practical use at the most of modern computer-based devices and operating systems. The results of imitation of human skin reflectance spectra, corresponding skin colours and examples of 3D faces rendering are presented and compared with the results of phantom studies.

Human factors in operations design

NASA Technical Reports Server (NTRS)

Chafin, R. L.

1982-01-01

The manner in which organizations develop their organizational structure is considered, taking into account an example in which the environment changes for an older organization. In such cases, it would be preferable to have some theoretical foundation on which to base the restructuring of the organization to meet new environmental needs. A description is given of a theoretic foundation based on the principles of Differentiation/Integration and Procedural/Knowledge based operations. The organizational design principle of Differentiation and Integration has been presented by Lawrence and Lorsch (1969). The differentiation/integration processes are related to the organizational structures presented in studies concerning NASA Deep Space Network (DSN) operations. The principles presented provide valuable tools for analyzing operations organization.

Analysis of Atmospheric Trace Constituents from High Resolution Infrared Balloon-Borne and Ground-Based Solar Absorption Spectra

NASA Technical Reports Server (NTRS)

Goldman, A.; Murcray, F. J.; Rinsland, C. P.; Blatherwick, R. D.; Murcray, F. H.; Murcray, D. G.

1991-01-01

Recent results and ongoing studies of high resolution solar absorption spectra will be presented. The analysis of these spectra is aimed at the identification and quantification of trace constituents important in atmospheric chemistry of the stratosphere and upper troposphere. Analysis of balloon-borne and ground-based spectra obtained at 0.0025/ cm covering the 700-2200/ cm interval will be presented. Results from ground-based 0.02/ cm solar spectra, from several locations such as Denver, South Pole, M. Loa, and New Zealand will also be shown. The 0.0025/ cm spectra show many new spectroscopic features. The analysis of these spectra, along with corresponding laboratory spectra, improves the spectral line parameters, and thus the accuracy of trace constituents quantification. The combination of the recent balloon flights, with earlier flights data since 1978 at 0.02/ cm resolution, provides trends analysis of several stratospheric trace species. Results for COF2, F22, SF6, and other species will be presented. Analysis of several ground-based solar spectra provides trends for HCl, HF and other species. The retrieval methods used for total column density and altitude distribution for both ground-based and balloon-borne spectra will be presented. These are extended for the analysis of the ground-based spectra to be obtained by the high resolution interferometers of the Network for Detection of Stratospheric Change (NDSC). Progress or the University of Denver studies for the NDSC will be presented. This will include intercomparison of solar spectra and trace gases retrievals obtained from simultaneous scans by the high resolution (0.0025/ cm) interferometers of BRUKER and BOMEM.

Presentation accuracy of the web revisited: animation methods in the HTML5 era.

PubMed

Garaizar, Pablo; Vadillo, Miguel A; López-de-Ipiña, Diego

2014-01-01

Using the Web to run behavioural and social experiments quickly and efficiently has become increasingly popular in recent years, but there is some controversy about the suitability of using the Web for these objectives. Several studies have analysed the accuracy and precision of different web technologies in order to determine their limitations. This paper updates the extant evidence about presentation accuracy and precision of the Web and extends the study of the accuracy and precision in the presentation of multimedia stimuli to HTML5-based solutions, which were previously untested. The accuracy and precision in the presentation of visual content in classic web technologies is acceptable for use in online experiments, although some results suggest that these technologies should be used with caution in certain circumstances. Declarative animations based on CSS are the best alternative when animation intervals are above 50 milliseconds. The performance of procedural web technologies based on the HTML5 standard is similar to that of previous web technologies. These technologies are being progressively adopted by the scientific community and have promising futures, which makes their use advisable to utilizing more obsolete technologies.

Shifting attention in viewer- and object-based reference frames after unilateral brain injury.

PubMed

List, Alexandra; Landau, Ayelet N; Brooks, Joseph L; Flevaris, Anastasia V; Fortenbaugh, Francesca C; Esterman, Michael; Van Vleet, Thomas M; Albrecht, Alice R; Alvarez, Bryan D; Robertson, Lynn C; Schendel, Krista

2011-06-01

The aims of the present study were to investigate the respective roles that object- and viewer-based reference frames play in reorienting visual attention, and to assess their influence after unilateral brain injury. To do so, we studied 16 right hemisphere injured (RHI) and 13 left hemisphere injured (LHI) patients. We used a cueing design that manipulates the location of cues and targets relative to a display comprised of two rectangles (i.e., objects). Unlike previous studies with patients, we presented all cues at midline rather than in the left or right visual fields. Thus, in the critical conditions in which targets were presented laterally, reorienting of attention was always from a midline cue. Performance was measured for lateralized target detection as a function of viewer-based (contra- and ipsilesional sides) and object-based (requiring reorienting within or between objects) reference frames. As expected, contralesional detection was slower than ipsilesional detection for the patients. More importantly, objects influenced target detection differently in the contralesional and ipsilesional fields. Contralesionally, reorienting to a target within the cued object took longer than reorienting to a target in the same location but in the uncued object. This finding is consistent with object-based neglect. Ipsilesionally, the means were in the opposite direction. Furthermore, no significant difference was found in object-based influences between the patient groups (RHI vs. LHI). These findings are discussed in the context of reference frames used in reorienting attention for target detection. Published by Elsevier Ltd.

Using Toulmin Analysis to Analyse an Instructor's Proof Presentation in Abstract Algebra

ERIC Educational Resources Information Center

Fukawa-Connelly, Timothy

2014-01-01

This paper provides a method for analysing undergraduate teaching of proof-based courses using Toulmin's model (1969) of argumentation. It presents a case study of one instructor's presentation of proofs. The analysis shows that the instructor presents different levels of detail in different proofs; thus, the students have an inconsistent set of…

Free-radical sensing by using naphthalimide based mesoporous silica (MCM-41) nanoparticles: A combined fluorescence and cellular imaging study

NASA Astrophysics Data System (ADS)

Jha, Gaurav; Roy, Subhasis; Sahu, Prabhat Kumar; Banerjee, Somnath; Anoop, N.; Rahaman, Abdur; Sarkar, Moloy

2018-01-01

Keeping in mind the advantages of material-based systems over simple molecule-based systems, we have designed and developed three inorganic-organic hybrid systems by anchoring 1,8-naphthalimide derivatives to mesoporous silica nanoparticles for detection of free radicals. Prior to photophysical study, systems are characterized by spectroscopic, microscopic and thermo-gravimetric techniques. Steady state and time-resolved fluorescence studies demonstrate that the hydrazine based system is senstive towards detection of various free radicals. Cellular imaging study reveals cell permeability and toxicity study demonstrates the non-toxic nature of the material. These studies have suggested that present system has the potential to be used in various biological applications.

The Effect of Subliminal HELP Presentations on Learning a Text Editor.

ERIC Educational Resources Information Center

Wallace, F. Layne; And Others

1991-01-01

Discussion of subliminal stimuli focuses on a study of undergraduates that was conducted to determine the feasibility of presenting subliminal information in a passive manner to reinforce the learning process involved in computer-based text editing. The Texas Instruments microcomputers used in the study are described, and further research is…

Effects of Presentation Mode and Computer Familiarity on Summarization of Extended Texts

ERIC Educational Resources Information Center

Yu, Guoxing

2010-01-01

Comparability studies on computer- and paper-based reading tests have focused on short texts and selected-response items via almost exclusively statistical modeling of test performance. The psychological effects of presentation mode and computer familiarity on individual students are under-researched. In this study, 157 students read extended…

Developing and Integrating Courseware for Oral Presentations into ESP Learning Contexts

ERIC Educational Resources Information Center

Tsai, Shu-Chiao

2010-01-01

This study reports on the development of ESP (English for Specific Purposes) multimedia courseware on oral presentations, and its integration into self-study learning and elective courses for students with different English proficiencies, as one solution to problems in ESP courses in Taiwan. The courseware design is based on Mayer's multimedia…

A Study on the Learning Efficiency of Multimedia-Presented, Computer-Based Science Information

ERIC Educational Resources Information Center

Guan, Ying-Hua

2009-01-01

This study investigated the effects of multimedia presentations on the efficiency of learning scientific information (i.e. information on basic anatomy of human brains and their functions, the definition of cognitive psychology, and the structure of human memory). Experiment 1 investigated whether the modality effect could be observed when the…

Difficult‐to‐control asthma management through the use of a specific protocol

PubMed Central

Giavina‐Bianchi, Pedro; Aun, Marcelo Vivolo; Bisaccioni, Carla; Agondi, Rosana; Kalil, Jorge

2010-01-01

The present study is a critical review of difficult‐to‐control asthma, highlighting the characteristics and severity of the disease. It also presents a protocol for the management of patients with this asthma phenotype. The protocol, which was based on relevant studies in the literature, is described and analyzed. PMID:21049219

Text-Based Argumentation with Multiple Sources: A Descriptive Study of Opportunity to Learn in Secondary English Language Arts, History, and Science

ERIC Educational Resources Information Center

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

2017-01-01

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

Academic English Teaching for Postgraduates Based on Self-Regulated Learning Environment: A Case Study of Academic Reading Course

ERIC Educational Resources Information Center

Zhao, Wei

2016-01-01

This study selects postgraduate students in the first grade as the participants, based on their needs analysis, classroom presentations and performance of assignments completion, through the methodology of case study, the results show that students at the university level even the graduate levels still struggle with academic English. Thus, this…

Integrated and Contextual Basic Science Instruction in Preclinical Education: Problem-Based Learning Experience Enriched with Brain/Mind Learning Principles

ERIC Educational Resources Information Center

Gülpinar, Mehmet Ali; Isoglu-Alkaç, Ümmühan; Yegen, Berrak Çaglayan

2015-01-01

Recently, integrated and contextual learning models such as problem-based learning (PBL) and brain/mind learning (BML) have become prominent. The present study aimed to develop and evaluate a PBL program enriched with BML principles. In this study, participants were 295 first-year medical students. The study used both quantitative and qualitative…

Analyzing Idioms and Their Frequency in Three Advanced ILI Textbooks: A Corpus-Based Study

ERIC Educational Resources Information Center

Alavi, Sepideh; Rajabpoor, Aboozar

2015-01-01

The present study aimed at identifying and quantifying the idioms used in three ILI "Advanced" level textbooks based on three different English corpora; MICASE, BNC and the Brown Corpus, and comparing the frequencies of the idioms across the three corpora. The first step of the study involved searching the books to find multi-word…

Digital Badges for Teacher Mastery: An Exploratory Study of a Competency-Based Professional Development Badge System. CCT Reports

ERIC Educational Resources Information Center

Diamond, James; Gonzalez, Pilar Carmina

2014-01-01

This study contributes knowledge about how a digital badge system integrated into an online, subject-matter-specific, and competency-based professional development (PD) program affected teachers' experiences with and perceptions of the program activities. The report presents findings from a one-year exploratory study of an online PD program, and…

American and Chinese Students' Profiles Based on Spanish-Learning Strategies: A Transcultural Comparison

ERIC Educational Resources Information Center

Bernardo, Aránzazu; Amérigo, María; García, Juan A.

2017-01-01

This paper presents a study on the use of learning strategies in foreign languages, and more specifically Spanish. The study was conducted with 376 Chinese and American students who were studying Spanish in their countries of origin. The results obtained from a latent class cluster analysis identified five groups of participants based on the…

Abduction, Deduction and Induction: Can These Concepts Be Used for an Understanding of Methodological Processes in Interpretative Case Studies?

ERIC Educational Resources Information Center

Åsvoll, Håvard

2014-01-01

Within the area of interpretative case studies, there appears to be a vast amount of literature about theoretical interpretations as the main analytical strategy. In light of this theoretically based strategy in case studies, this article presents an extended perspective based on Charles Sanders Peirce's concepts of abduction, deduction and…

Persons with Multiple Disabilities Exercise Adaptive Response Schemes with the Help of Technology-Based Programs: Three Single-Case Studies

ERIC Educational Resources Information Center

Lancioni, Giulio E.; Singh, Nirbhay N.; O'Reilly, Mark F.; Sigafoos, Jeff; Oliva, Doretta; Campodonico, Francesca; Lang, Russell

2012-01-01

The present three single-case studies assessed the effectiveness of technology-based programs to help three persons with multiple disabilities exercise adaptive response schemes independently. The response schemes included (a) left and right head movements for a man who kept his head increasingly static on his wheelchair's headrest (Study I), (b)…

Gender, Complexity, and Science for All: Systemizing and Its Impact on Motivation to Learn Science for Different Science Subjects

ERIC Educational Resources Information Center

Zeyer, Albert

2018-01-01

The present study is based on a large cross-cultural study, which showed that a systemizing cognition type has a high impact on motivation to learn science, while the impact of gender is only indirect thorough systemizing. The present study uses the same structural equation model as in the cross-cultural study and separately tests it for physics,…

Combining Learning and Assessment in Assessment-Based Gaming Environments: A Case Study from a New York City School

ERIC Educational Resources Information Center

Zapata-Rivera, Diego; VanWinkle, Waverely; Doyle, Bryan; Buteux, Alyssa; Bauer, Malcolm

2009-01-01

Purpose: The purpose of this paper is to propose and demonstrate an evidence-based scenario design framework for assessment-based computer games. Design/methodology/approach: The evidence-based scenario design framework is presented and demonstrated by using BELLA, a new assessment-based gaming environment aimed at supporting student learning of…

Incorporating Beliefs, Values and Local Wisdom of Betawi Culture in a Character-Based Education through a Design-Based Research

ERIC Educational Resources Information Center

Suswandari

2017-01-01

This design-based research is part of three-year national projects examining the incorporation of local wisdom in a character-based education in primary school contexts. Specifically, the present study addresses two research questions: 1) what are local wisdoms of Betawi ethnic feasible to be incorporated in character based curriculum in primary…

Phonon properties of iron-based superconductors

NASA Astrophysics Data System (ADS)

Gupta, Yuhit; Goyal, Megha; Sinha, M. M.

2018-05-01

Earlier, it was thought there is antagonist relationship between superconductivity and ferromagnetic materials, But, a discovery of iron-based superconductors have removed this misconception. It gives an idea to make a review on the superconductivity properties of different materials. The new iron-based superconductors' present symmetry breaking competing phases in the form of tetragonal to orthorhombic transition. It consists of mainly four families [1111], [111], [122], and [11] type. Superconductivity of iron-based superconductors mainly related with the phonons and there is an excellent relation between phonons and superconductivity. Phonons properties are helpful in predicting the superconducting properties of materials. Phonon properties of iron-based superconductors in various phases are summarized in this study. We are presenting the review of phonon properties of iron-based superconductors.

Space-based but not object-based inhibition of return is impaired in Parkinson's disease.

PubMed

Possin, Katherine L; Filoteo, J Vincent; Song, David D; Salmon, David P

2009-06-01

Impairments in certain aspects of attention have frequently been reported in Parkinson's disease (PD), including reduced inhibition of return (IOR). Recent evidence suggests that IOR can occur when attention is directed at objects or locations, but previous investigations of IOR in PD have not systematically compared these two frames of reference. The present study compared the performance of 18 nondemented patients with PD and 18 normal controls on an IOR task with two conditions. In the "object-present" condition, objects surrounded the cues and targets so that attention was cued to both a spatial location and to a specific object. In the "object-absent" condition, surrounding objects were not presented so that attention was cued only to a spatial location. When participants had to rely on space-based cues, PD patients demonstrated reduced IOR compared to controls. In contrast, when objects were present in the display and participants could use object-based cues, PD patients exhibited normal IOR. These results suggest that PD patients are impaired in inhibitory aspects of space-based attention, but are able to overcome this impairment when their attention can be directed at object-based frames of reference. This dissociation supports the view that space-based and object-based components of attention involve distinct neurocognitive processes.

Five Secondary Teachers: Creating and Presenting a Teaching Persona

ERIC Educational Resources Information Center

Davis, Janine Schank

2011-01-01

This qualitative study investigates the ways that five secondary teachers developed and presented personae. The researcher collected and analyzed data using a theoretical frame based in social psychology, including Goffman's Presentation of Self in Everyday Life (1959), and Miles and Huberman's (1994) three-step approach to qualitative data…

Adipose‑derived stem cells and hyaluronic acid based gel compatibility, studied in vitro.

PubMed

Guo, Jiayan; Guo, Shu; Wang, Yuxin; Yu, Yanqiu

2017-10-01

Minimally invasive aesthetic and cosmetic procedures have increased in popularity. Injectable dermal fillers provide soft tissue augmentation, improve facial rejuvenation and wrinkles, and correct tissue defects. To investigate the use of adipose‑derived stem cells integrated with a hyaluronic acid based gel as a dermal filler, the present study used cytotoxicity studies, proliferation studies, adipogenic and osteogenic differentiation, apoptosis assays and scanning electron microscopy. Although hyaluronic acid induced low levels of apoptosis in adipose‑derived stem cells, its significantly promoted proliferation of adipose‑derived stem cells. Hyaluronic acid demonstrates little toxicity against adipose‑derived stem cells. Adipose‑derived stem cells were able to differentiate into adipocytes and osteoblasts. Furthermore, scanning electron microscopy revealed that adipose‑derived stem cells maintained intact structures on the surface of hyaluronic acid as well as in it, and demonstrated abundant cell attachments. The present study demonstrated the compatibility of adipose‑derived stem cells and hyaluronic acid based gels in vitro.

Anion photoelectron spectroscopy of acid-base systems, solvated molecules and MALDI matrix molecules

NASA Astrophysics Data System (ADS)

Eustis, Soren Newman

Gas phase, mass-selected, anion photoelectron spectroscopic studies were performed on a variety of molecular systems. These studies can be grouped into three main themes: acid-base interactions, solvation, and ions of analytical interest. Acid-base interactions represent some of the most fundamental processes in chemistry. The study of these processes elucidates elementary principles such as inner and outer sphere complexes, hard and soft ions, and salt formation---to name a few. Apart from their appeal from a pedagogical standpoint, the ubiquity of chemical reactions which involve acids, bases or the resulting salts makes the study of their fundamental interactions both necessary and fruitful. With this in mind, the neutral and anionic series (NH3···HX) (X= F, Cl, Br, I) were examined experimentally and theoretically. The relatively small size of these systems, combined with the advances in computational methods, allowed our experimental results to be compared with very high level ab initio theoretical results. The synergy between theory and experiment yielded an understanding of the nature of the complexes that could not be achieved with either method in isolation. The second theme present in this body or work is molecular solvation. Solvation is a phenomenon which is present in biology, chemistry and physics. Many biological molecules do not become 'active' until they are solvated by water. Thus, the study of biologically relevant species solvated by water is one step in a bottom up approach to studying the biochemical interactions in living organisms. Furthermore, the hydration of acidic molecules in the atmosphere is what drives the formation of 'free' protons or hydronium ions which are the key players in acid driven chemistry. Here are presented two unique solvation studies, Adenine(H2O)-n and C6F6(H2O)-n, these systems are very distinct, but show somewhat similar responses to hydration. The last theme presented in this work is the electronic properties of molecules relevant to analytical chemistry, or more specifically, Matrix Assisted Laser Desorption Interaction (MALDI) chemistry. For the first time electron affinities are presented for many of the common MALDI matrix compounds.

Biofeedback-Based, Videogame Balance Training in Autism

ERIC Educational Resources Information Center

Travers, Brittany G.; Mason, Andrea H.; Mrotek, Leigh Ann; Ellertson, Anthony; Dean, Douglas C., III; Engel, Courtney; Gomez, Andres; Dadalko, Olga I.; McLaughlin, Kristine

2018-01-01

The present study examined the effects of a visual-based biofeedback training on improving balance challenges in autism spectrum disorder (ASD). Twenty-nine youth with ASD (7-17 years) completed an intensive 6-week biofeedback-based videogame balance training. Participants exhibited training-related balance improvements that significantly…

Interactions between space-based and feature-based attention.

PubMed

Leonard, Carly J; Balestreri, Angela; Luck, Steven J

2015-02-01

Although early research suggested that attention to nonspatial features (i.e., red) was confined to stimuli appearing at an attended spatial location, more recent research has emphasized the global nature of feature-based attention. For example, a distractor sharing a target feature may capture attention even if it occurs at a task-irrelevant location. Such findings have been used to argue that feature-based attention operates independently of spatial attention. However, feature-based attention may nonetheless interact with spatial attention, yielding larger feature-based effects at attended locations than at unattended locations. The present study tested this possibility. In 2 experiments, participants viewed a rapid serial visual presentation (RSVP) stream and identified a target letter defined by its color. Target-colored distractors were presented at various task-irrelevant locations during the RSVP stream. We found that feature-driven attentional capture effects were largest when the target-colored distractor was closer to the attended location. These results demonstrate that spatial attention modulates the strength of feature-based attention capture, calling into question the prior evidence that feature-based attention operates in a global manner that is independent of spatial attention.

The Application of Web-Based Teaching and Learning in Tertiary Institution--A Case Study in Hong Kong

ERIC Educational Resources Information Center

Fung, Alex C. W.; Fu, Frank H. K.; Cheung, W. S.

2005-01-01

The experience of a two-year project to promote the use of Web-based teaching and learning at XXX University was presented. A total of 68 courses over two semesters were included in the study. Surveys of students and teachers suggested that the quality of learning and teaching were improved. Over 80% of the students had used Web-based teaching and…

Automated array assembly

NASA Technical Reports Server (NTRS)

Williams, B. F.

1976-01-01

Manufacturing techniques are evaluated using expenses based on experience and studying basic cost factors for each step to evaluate expenses from a first-principles point of view. A formal cost accounting procedure is developed which is used throughout the study for cost comparisons. The first test of this procedure is a comparison of its predicted costs for array module manufacturing with costs from a study which is based on experience factors. A manufacturing cost estimate for array modules of $10/W is based on present-day manufacturing techniques, expenses, and materials costs.

Infrared radiative energy transfer in gaseous systems

NASA Technical Reports Server (NTRS)

Tiwari, Surendra N.

1991-01-01

Analyses and numerical procedures are presented to investigate the radiative interactions in various energy transfer processes in gaseous systems. Both gray and non-gray radiative formulations for absorption and emission by molecular gases are presented. The gray gas formulations are based on the Planck mean absorption coefficient and the non-gray formulations are based on the wide band model correlations for molecular absorption. Various relations for the radiative flux and divergence of radiative flux are developed. These are useful for different flow conditions and physical problems. Specific plans for obtaining extensive results for different cases are presented. The procedure developed was applied to several realistic problems. Results of selected studies are presented.

Manned space flight nuclear system safety. Volume 5: Nuclear System safety guidelines. Part 1: Space base nuclear safety

NASA Technical Reports Server (NTRS)

1972-01-01

The design and operations guidelines and requirements developed in the study of space base nuclear system safety are presented. Guidelines and requirements are presented for the space base subsystems, nuclear hardware (reactor, isotope sources, dynamic generator equipment), experiments, interfacing vehicles, ground support systems, range safety and facilities. Cross indices and references are provided which relate guidelines to each other, and to substantiating data in other volumes. The guidelines are intended for the implementation of nuclear safety related design and operational considerations in future space programs.

An Agent-Based Model for Studying Child Maltreatment and Child Maltreatment Prevention

NASA Astrophysics Data System (ADS)

Hu, Xiaolin; Puddy, Richard W.

This paper presents an agent-based model that simulates the dynamics of child maltreatment and child maltreatment prevention. The developed model follows the principles of complex systems science and explicitly models a community and its families with multi-level factors and interconnections across the social ecology. This makes it possible to experiment how different factors and prevention strategies can affect the rate of child maltreatment. We present the background of this work and give an overview of the agent-based model and show some simulation results.

Overview of Light Hydrogen-Based Low Energy Nuclear Reactions

NASA Astrophysics Data System (ADS)

Miley, George H.; Shrestha, Prajakti J.

This paper reviews light water and hydrogen-based low-energy nuclear reactions (LENRs) including the different methodologies used to study these reactions and the results obtained. Reports of excess heat production, transmutation reactions, and nuclear radiation emission are cited. An aim of this review is to present a summary of the present status of light water LENR research and provide some insight into where this research is heading.

Development of a Neural Network-Based Renewable Energy Forecasting Framework for Process Industries

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

Lee, Soobin; Ryu, Jun-Hyung; Hodge, Bri-Mathias

2016-06-25

This paper presents a neural network-based forecasting framework for photovoltaic power (PV) generation as a decision-supporting tool to employ renewable energies in the process industry. The applicability of the proposed framework is illustrated by comparing its performance against other methodologies such as linear and nonlinear time series modelling approaches. A case study of an actual PV power plant in South Korea is presented.

Evaluation of Mucoadhesive Gels with Propolis (EPP-AF) in Preclinical Treatment of Candidiasis Vulvovaginal Infection

PubMed Central

de Castro, Patrícia Alves; Fortes, Vanessa Silveira; Bom, Vinícius Pedro; Nascimento, Andresa Piacezzi; Marquele-Oliveira, Franciane; Pedrazzi, Vinícius; Ramalho, Leandra Naira Zambelli; Goldman, Gustavo Henrique

2013-01-01

Vulvovaginal candidiasis is the second cause of vaginal infection in the USA. Clinical treatment of C. albicans infections is routinely performed with polyenes and azole derivatives. However, these drugs are responsible for undesirable side effects and toxicity. In addition, C. albicans azole and echinocandin resistance has been described. Propolis is a bee product traditionally used due to its antimicrobial, anti-inflammatory, and other properties. Therefore, the present work aimed to evaluate different propolis presentations in order to evaluate their in vitro and in vivo efficacy. The methodologies involved antifungal evaluation, chemical analysis, and the effects of the rheological and mucoadhesive properties of propolis based gels. The obtained results demonstrated the fungicide action of propolis extracts against all three morphotypes (yeast, pseudohyphae, and hyphae) studied. The highest level of fungal cytotoxicity was reached at 6–8 hours of propolis cell incubation. Among the based gel formulations developed, the rheological and mucoadhesive results suggest that propolis based carbopol (CP1%) and chitosan gels were the most pseudoplastic ones. CP1% was the most mucoadhesive preparation, and all of them presented low thixotropy. Results of in vivo efficacy demonstrated that propolis based gels present antifungal action similar to clotrimazole cream, suggesting that future clinical studies should be performed. PMID:23997797

Predicting the Resiliency in Parents with Exceptional Children Based on Their Mindfulness

ERIC Educational Resources Information Center

Jabbari, Sosan; Firoozabadi, Somayeh Sadati; Rostami, Sedighe

2016-01-01

The purpose of the present study was to predict the resiliency in parents with exceptional children based on their mindfulness. This descriptive correlational study was performed on 260 parents of student (105 male and 159 female) that were selected by cluster sampling method. Family resiliency questionnaire (Sickby, 2005) and five aspect…

The Effect from Coaching Based Leadership

ERIC Educational Resources Information Center

Moen, Frode; Federici, Roger Andre

2012-01-01

The main purpose of the present study was to implement an experiment to explore the effects from coaching based leadership on goal setting, self-efficacy, and causal attribution. The study comprised of 20 executives and 124 middle managers at a branch of a Norwegian Fortune 500 company who all voluntarily participated in an experiment over a…

Epilepsy Among Children and Adolescents with Autism Spectrum Disorders: A Population-Based Study

ERIC Educational Resources Information Center

Jokiranta, Elina; Sourander, Andre; Suominen, Auli; Timonen-Soivio, Laura; Brown, Alan S.; Sillanpää, Matti

2014-01-01

The present population-based study examines associations between epilepsy and autism spectrum disorders (ASD). The cohort includes register data of 4,705 children born between 1987 and 2005 and diagnosed as cases of childhood autism, Asperger's syndrome or pervasive developmental disorders--not otherwise specified. Each case was matched to four…

Information Activities and Appropriation in Teacher Trainees' Digital, Group-Based Learning

ERIC Educational Resources Information Center

Hanell, Fredrik

2016-01-01

Introduction: This paper reports results from an ethnographic study of teacher trainees' information activities in digital, group-based learning and their relation to the interplay between use and appropriation of digital tools and the learning environment. Method: The participants in the present study are 249 pre-school teacher trainees in…

Problem-Based Learning for Production and Operations Management

ERIC Educational Resources Information Center

Kanet, John J.; Barut, Mehmet

2003-01-01

In this paper, we describe our application of "problem-based learning" in the teaching of production/operations management. We describe a study of the effectiveness of this approach and present the results and analysis of this study. We provide a collection of our experiences in using this method and conclude with some general…

Implementing Reading Strategies Based on Collaborative Learning Approach in an English Class

ERIC Educational Resources Information Center

Suwantharathip, Ornprapat

2015-01-01

The present study investigated the effects of reading strategies based on collaborative learning approach on students' reading comprehension and reading strategy use. The quasi-experimental research study was performed with two groups of students. While the control group was taught in the traditional way, the experimental group received reading…

Bacillus subtilis-based direct-fed microbials augment macrophage function in broiler chickens

USDA-ARS?s Scientific Manuscript database

The present study was conducted to evaluate the function of Bacillus subtilis-based direct-fed microbials (DFMs) on macrophage functions, i.e., nitric oxide (NO) production and phagocytosis in broiler chickens. DFMs used in this study were eight single strains designated as Bs2084, LSSAO1, 3AP4, Bs1...

Case Studies of Auditing in a Computer-Based Systems Environment.

ERIC Educational Resources Information Center

General Accounting Office, Washington, DC.

In response to a growing need for effective and efficient means for auditing computer-based systems, a number of studies dealing primarily with batch-processing type computer operations have been conducted to explore the impact of computers on auditing activities in the Federal Government. This report first presents some statistical data on…

Group-Based Life Design Counseling in an Italian Context

ERIC Educational Resources Information Center

Di Fabio, Annamaria; Maree, Jacobus Gideon

2012-01-01

This study examined the effectiveness of group-based Life Design Counseling using the Career-Story Interview. Written exercises were used to implement the seven topics in the Career-Story Interview. The present study employed an experimental design that involved two groups of Italian entrepreneurs from the agricultural and trade sectors, namely an…

Investigating the Use of a Digital Library in an Inquiry-Based Undergraduate Geology Course

ERIC Educational Resources Information Center

Apedoe, Xornam S.

2007-01-01

This paper reports the findings of a qualitative research study designed to investigate the opportunities and obstacles presented by a digital library for supporting teaching and learning in an inquiry-based undergraduate geology course. Data for this study included classroom observations and field-notes of classroom practices, questionnaires, and…

Preliminary Study of Resilience-Based Group Therapy for Improving the Functioning of Anxious Children

ERIC Educational Resources Information Center

Watson, Candice C.; Rich, Brendan A.; Sanchez, Lisa; O'Brien, Kelly; Alvord, Mary K.

2014-01-01

Background: There is a lack of research examining the feasibility of group psychotherapy interventions for anxious children in private clinical service settings. Furthermore, no research to date has examined the effectiveness of resilience-based interventions for helping children with anxiety disorders. Objective: The present study aims to examine…

A Web-Based Contingency Management Program with Adolescent Smokers

ERIC Educational Resources Information Center

Reynolds, Brady; Dallery, Jesse; Shroff, Palak; Patak, Michele; Leraas, Kristen

2008-01-01

The present study evaluated a new 30-day Web-based contingency management program for smoking abstinence with 4 daily-smoking adolescents. Participants made 3 daily video recordings of themselves giving breath carbon monoxide (CO) samples at home that were sent electronically to study personnel. Using a reversal design, participants could earn…

Practicum-Based Approach to Bridge between Information-Systems Industry Expectations and Graduates Qualifications

ERIC Educational Resources Information Center

Lavy, Ilana

2017-01-01

In this study, a practicum-based approach to bridge the gap between industry expectations and Information Systems graduates skills is presented and discussed. Students participate in the practicum project during their last study year, and take part in various professional activities in the industry in accordance with their professional aspirations…

Competence-Based Approach in the Education of Pedagogues--Comparative View

ERIC Educational Resources Information Center

Ermenc, Klara Skubic; Vujisic-Živkovic, Nataša

2015-01-01

The paper presents some of the findings of a comparative qualitative study conducted at University of Ljubljana, Slovenia and University of Belgrade, Serbia. It discusses the findings related to the opinions and experiences of the university professors about the role of competences in the pedagogy study programmes. Competence-based approach has…

Content Analysis of a Computer-Based Faculty Activity Repository

ERIC Educational Resources Information Center

Baker-Eveleth, Lori; Stone, Robert W.

2013-01-01

The research presents an analysis of faculty opinions regarding the introduction of a new computer-based faculty activity repository (FAR) in a university setting. The qualitative study employs content analysis to better understand the phenomenon underlying these faculty opinions and to augment the findings from a quantitative study. A web-based…

Behavioral assessment of emotional and motivational appraisal during visual processing of emotional scenes depending on spatial frequencies.

PubMed

Fradcourt, B; Peyrin, C; Baciu, M; Campagne, A

2013-10-01

Previous studies performed on visual processing of emotional stimuli have revealed preference for a specific type of visual spatial frequencies (high spatial frequency, HSF; low spatial frequency, LSF) according to task demands. The majority of studies used a face and focused on the appraisal of the emotional state of others. The present behavioral study investigates the relative role of spatial frequencies on processing emotional natural scenes during two explicit cognitive appraisal tasks, one emotional, based on the self-emotional experience and one motivational, based on the tendency to action. Our results suggest that HSF information was the most relevant to rapidly identify the self-emotional experience (unpleasant, pleasant, and neutral) while LSF was required to rapidly identify the tendency to action (avoidance, approach, and no action). The tendency to action based on LSF analysis showed a priority for unpleasant stimuli whereas the identification of emotional experience based on HSF analysis showed a priority for pleasant stimuli. The present study confirms the interest of considering both emotional and motivational characteristics of visual stimuli. Copyright © 2013 Elsevier Inc. All rights reserved.

The Second Prototype of the Development of a Technological Pedagogical Content Knowledge Based Instructional Design Model: An Implementation Study in a Technology Integration Course

ERIC Educational Resources Information Center

Lee, Chia-Jung; Kim, ChanMin

2014-01-01

This study presents a refined technological pedagogical content knowledge (also known as TPACK) based instructional design model, which was revised using findings from the implementation study of a prior model. The refined model was applied in a technology integration course with 38 preservice teachers. A case study approach was used in this…

Revisiting typhoid fever surveillance in low and middle income countries: lessons from systematic literature review of population-based longitudinal studies.

PubMed

Mogasale, Vittal; Mogasale, Vijayalaxmi V; Ramani, Enusa; Lee, Jung Seok; Park, Ju Yeon; Lee, Kang Sung; Wierzba, Thomas F

2016-01-29

The control of typhoid fever being an important public health concern in low and middle income countries, improving typhoid surveillance will help in planning and implementing typhoid control activities such as deployment of new generation Vi conjugate typhoid vaccines. We conducted a systematic literature review of longitudinal population-based blood culture-confirmed typhoid fever studies from low and middle income countries published from 1(st) January 1990 to 31(st) December 2013. We quantitatively summarized typhoid fever incidence rates and qualitatively reviewed study methodology that could have influenced rate estimates. We used meta-analysis approach based on random effects model in summarizing the hospitalization rates. Twenty-two papers presented longitudinal population-based and blood culture-confirmed typhoid fever incidence estimates from 20 distinct sites in low and middle income countries. The reported incidence and hospitalizations rates were heterogeneous as well as the study methodology across the sites. We elucidated how the incidence rates were underestimated in published studies. We summarized six categories of under-estimation biases observed in these studies and presented potential solutions. Published longitudinal typhoid fever studies in low and middle income countries are geographically clustered and the methodology employed has a potential for underestimation. Future studies should account for these limitations.

Community-Based Participatory Research and Smoking Cessation Interventions: A Review of the Evidence

PubMed Central

Newman, Susan D.; Heath, Janie; Williams, Lovoria B.; Tingen, Martha S.

2011-01-01

SYNOPSIS This article presents a review of the evidence on the use of community-based participatory research (CBPR) and smoking cessation interventions. An overview of CBPR is provided, along with a description of the search methods and quality scoring. Research questions are explored to determine: if CBPR improves the quality of research methods and community involvement in cessation intervention studies; and, cessation outcomes when using CBPR approaches. Results of the review are provided along with a comprehensive table summarizing all included studies. Strengths and challenges of the CBPR approach are presented with recommendations for future research. PMID:22289400

Comparing Explicit Exemplar-Based and Rule-Based Corrective Feedback: Introducing Analogy-Based Corrective Feedback

ERIC Educational Resources Information Center

Thomas, Kavita E.

2018-01-01

This study introduces an approach to providing corrective feedback to L2 learners termed analogy-based corrective feedback that is motivated by analogical learning theories and syntactic alignment in dialogue. Learners are presented with a structurally similar synonymous version of their output where the erroneous form is corrected, and they must…

An Inquiry-Based Approach to Teaching Research Methods in Information Studies

ERIC Educational Resources Information Center

Albright, Kendra; Petrulis, Robert; Vasconcelos, Ana; Wood, Jamie

2012-01-01

This paper presents the results of a project that aimed at restructuring the delivery of research methods training at the Information School at the University of Sheffield, UK, based on an Inquiry-Based Learning (IBL) approach. The purpose of this research was to implement inquiry-based learning that would allow customization of research methods…

Designing, Developing and Implementing a Software Tool for Scenario Based Learning

ERIC Educational Resources Information Center

Norton, Geoff; Taylor, Mathew; Stewart, Terry; Blackburn, Greg; Jinks, Audrey; Razdar, Bahareh; Holmes, Paul; Marastoni, Enrique

2012-01-01

The pedagogical value of problem-based and inquiry-based learning activities has led to increased use of this approach in many courses. While scenarios or case studies were initially presented to learners as text-based material, the development of modern software technology provides the opportunity to deliver scenarios as e-learning modules,…

Combining Project-Based Learning and Community-Based Research in a Research Methodology Course: The Lessons Learned

ERIC Educational Resources Information Center

Arantes do Amaral, João Alberto; Lino dos Santos, Rebeca Júlia Rodrigues

2018-01-01

In this article, we present our findings regarding the course "Research Methodology," offered to 22 first-year undergraduate students studying Administration at the Federal University of São Paulo, Osasco, Brazil. The course, which combined community-based research and project-based learning, was developed during the second semester of…

Assessing Team-Based Instructional Design Problem Solutions of Hierarchical Versus Heterarchical Web-Based Hypermedia Cases

ERIC Educational Resources Information Center

Dabbagh, Nada; Denisar, Katrina

2005-01-01

For this study, we examined the cogency, comprehensiveness, and viability of team-based problem solutions of a Web-based hypermedia case designed to promote student understanding of the practice of instructional design. Participants were 14 students enrolled in a graduate course on advanced instructional design. The case was presented to students…

Weight-Based Victimization among Adolescents in the School Setting: Emotional Reactions and Coping Behaviors

ERIC Educational Resources Information Center

Puhl, Rebecca M.; Luedicke, Joerg

2012-01-01

Weight-based victimization is a frequent experience for adolescents, but little is known about their emotional reactions and coping strategies in response to weight-based teasing and bullying. The present study examined the ways that adolescents cope with experiences of weight-based victimization at school. An initial sample of 1,555 students from…

Cognitive and Socio-Affective Outcomes of Project-Based Learning: Perceptions of Greek Second Chance School Students

ERIC Educational Resources Information Center

Koutrouba, Konstantina; Karageorgou, Elissavet

2013-01-01

The present questionnaire-based study was conducted in 2010 in order to examine 677 Greek Second Chance School (SCS) students' perceptions about the cognitive and socio-affective outcomes of project-based learning. Data elaboration, statistical and factor analysis showed that the participants found that project-based learning offered a second…

Evidence-Based Administration for Decision Making in the Framework of Knowledge Strategic Management

ERIC Educational Resources Information Center

Del Junco, Julio Garcia; Zaballa, Rafael De Reyna; de Perea, Juan Garcia Alvarez

2010-01-01

Purpose: This paper seeks to present a model based on evidence-based administration (EBA), which aims to facilitate the creation, transformation and diffusion of knowledge in learning organizations. Design/methodology/approach: A theoretical framework is proposed based on EBA and the case method. Accordingly, an empirical study was carried out in…

Data base management study

NASA Technical Reports Server (NTRS)

1976-01-01

Data base management techniques and applicable equipment are described. Recommendations which will assist potential NASA data users in selecting and using appropriate data base management tools and techniques are presented. Classes of currently available data processing equipment ranging from basic terminals to large minicomputer systems were surveyed as they apply to the needs of potential SEASAT data users. Cost and capabilities projections for this equipment through 1985 were presented. A test of a typical data base management system was described, as well as the results of this test and recommendations to assist potential users in determining when such a system is appropriate for their needs. The representative system tested was UNIVAC's DMS 1100.

Operations analysis for lunar surface construction: Results of two office of exploration case studies

NASA Astrophysics Data System (ADS)

Bell, Lisa Y.; Boles, Walter; Smith, Alvin

1991-08-01

In an environment of intense competition for Federal funding, the U.S. space research community is responsible for developing a feasible, cost-effective approach to establishing a surface base on the moon to fulfill long-term Government objectives. This report presents the results of a construction operations analysis of two lunar scenarios provided by the National Aeronautics and Space Administration (NASA). Activities necessary to install the lunar base surface elements are defined and scheduled, based on the productivities and availability of the base resources allocated to the projects depicted in each scenario. The only construction project in which the required project milestones were not completed within the nominal timeframe was the initial startup phase of NASA's FY89 Lunar Evolution Case Study (LECS), primarily because this scenario did not include any Earth-based telerobotic site preparation before the arrival of the first crew. The other scenario analyzed. Reference Mission A from NASA's 90-Day Study of the Human Exploration of the Moon and Mars, did use telerobotic site preparation before the manned phase of the base construction. Details of the analysis for LECS are provided, including spreadsheets indicating quantities of work and Gantt charts depicting the general schedule for the work. This level of detail is not presented for the scenario based on the 90-Day Study because many of the projects include the same (or similar) surface elements and facilities.

Team-Based Care with Pharmacists to Improve Blood Pressure: a Review of Recent Literature.

PubMed

Kennelty, Korey A; Polgreen, Linnea A; Carter, Barry L

2018-01-18

We review studies published since 2014 that examined team-based care strategies and involved pharmacists to improve blood pressure (BP). We then discuss opportunities and challenges to sustainment of team-based care models in primary care clinics. Multiple studies presented in this review have demonstrated that team-based care including pharmacists can improve BP management. Studies highlighted the cost-effectiveness of a team-based pharmacy intervention for BP control in primary care clinics. Little information was found on factors influencing sustainability of team-based care interventions to improve BP control. Future work is needed to determine the best populations to target with team-based BP programs and how to implement team-based approaches utilizing pharmacists in diverse clinical settings. Future studies need to not only identify unmet clinical needs but also address reimbursement issues and stakeholder engagement that may impact sustainment of team-based care interventions.

[Physical Activity in the Context of Workplace Health Promotion: A Systematic Review on the Effectiveness of Software-Based in Contrast to Personal-Based Interventions].

PubMed

Rudolph, Sabrina; Göring, Arne; Padrok, Dennis

2018-01-03

Sports and physical activity interventions are attracting considerable attention in the context of workplace health promotion. Due to increasing digitalization, especially software-based interventions that promote physical activity are gaining acceptance in practice. Empirical evidence concerning the efficiency of software-based interventions in the context of workplace health promotion is rather low so far. This paper examines the question in what way software-based interventions are more efficient than personal-based interventions in terms of increasing the level of physical activity. A systematic review according to the specifications of the Cochrane Collaboration was conducted. Inclusion criteria and should-have criteria were defined and by means of the should-have criteria the quality score of the studies was calculated. The software-based and personal-based interventions are presented in 2 tables with the categories author, year, country, sample group, aim of the intervention, methods, outcome and study quality. A total of 25 studies are included in the evaluation (12 personal- and 13 software-based interventions). The quality scores of the studies are heterogeneous and range from 3 to 9 points. 5 personal- and 5 software-based studies achieved an increase of physical activity. Other positive effects on health could be presented in the studies, for example, a reduction in blood pressure or body-mass index. A few studies did not show any improvement in health-related parameters. This paper demonstrates that positive effects can be achieved with both intervention types. Software-based interventions show advantages due to the use of new technologies. Use of desktop or mobile applications facilitate organization, communication and data acquisition with fewer resources needed. A schooled trainer, on the other hand, is able to react to specific and varying needs of the employees. This aspect should be considered as very significant. © Georg Thieme Verlag KG Stuttgart · New York.

[Electormagnetic field of the mobile phone base station: case study].

PubMed

Bieńkowski, Paweł; Zubrzak, Bartłomiej; Surma, Robert

2011-01-01

The paper presents changes in the electromagnetic field intensity in a school building and its surrounding after the mobile phone base station installation on the roof of the school. The comparison of EMF intensity measured before the base station was launched (electromagnetic background measurement) and after starting its operation (two independent control measurements) is discussed. Analyses of measurements are presented and the authors also propose the method of the electromagnetic field distribution adjustment in the area of radiation antennas side lobe to reduce the intensity of the EMF level in the base station proximity. The presented method involves the regulation of the inclination. On the basis of the measurements, it was found that the EMF intensity increased in the building and its surroundings, but the values measured with wide margins meet the requirements of the Polish law on environmental protection.

Biomimetic design processes in architecture: morphogenetic and evolutionary computational design.

PubMed

Menges, Achim

2012-03-01

Design computation has profound impact on architectural design methods. This paper explains how computational design enables the development of biomimetic design processes specific to architecture, and how they need to be significantly different from established biomimetic processes in engineering disciplines. The paper first explains the fundamental difference between computer-aided and computational design in architecture, as the understanding of this distinction is of critical importance for the research presented. Thereafter, the conceptual relation and possible transfer of principles from natural morphogenesis to design computation are introduced and the related developments of generative, feature-based, constraint-based, process-based and feedback-based computational design methods are presented. This morphogenetic design research is then related to exploratory evolutionary computation, followed by the presentation of two case studies focusing on the exemplary development of spatial envelope morphologies and urban block morphologies.

Guided Versus Unguided Learning: Which One To Choose?

NASA Astrophysics Data System (ADS)

Speck, Angela; Ruzhitskaya, L.

2011-01-01

We present the results of a study that measures the effectiveness of two types of computer-based tutorials for teaching the concept of stellar parallax to non-science major students in a college-level introductory astronomy course. A number of previous studies on the use of computer technology in education suggested that a method of inquiry-based learning rooted in a discovery method must prevail over direct instruction. At the same time, a number of researchers raised a concern that the discovery approach especially in combination with interactive computer-based environments may present students with additional distractions and thus hinder the educational value of such interactions. This study was set to test the both approaches and to identify the preferable method for engaging students in active and meaningful learning. The study consisted of guided and unguided computer-based tutorials and used a control group in which students were engaged in paper-based exercises. The guided tutorial was an adaptive tutorial that was designed to respond to students’ input and to provide them with the next step: an exercise, an animated visualization, or a set of additional questions. The unguided tutorial allowed students to explore any part of the tutorial in any order. Both tutorials consisted of four parts and reviewed simple geometry, trigonometric parallax, angular sizes in astronomy, resolution and conversion of units, and had a concluding chapter on finding distance to a star. The control group used Lecture-Tutorials (Prather, et al) to learn angular sizes and stellar parallax. The efficacy of each treatment was validated through a 14-question pretest and two posttests to evaluate and contrast students’ immediate recall and their long-term knowledge and corroborated by a number of interviews with selected students. We present our preliminary results based on analyzed work of over 200 participants.

The method of neutron imaging as a tool for the study of the dynamics of water movement in wet aramid-based ballistic body armour panels

NASA Astrophysics Data System (ADS)

Reifler, Felix A.; Lehmann, Eberhard H.; Frei, Gabriel; May, Hans; Rossi, René

2006-07-01

A new non-destructive method based on neutron imaging (neutron radiography) to determine the exact water content in aramid-based soft body armour panels is presented. While investigating the ballistic resistance of aramid-based body armour panels under a wet condition, it is important to precisely determine their water content and its chronological development. Using the presented method, the influence of water amount and location on impact testing as well as its time dependence was shown. In the ballistic panels used, spreading of water strongly depended on the kind of quilting. Very fast water migration could be observed when the panels were held vertically. Some first results regarding the water distribution in wet panels immediately after the impact are presented. On the basis of the presented results, requirements for a standard for testing the performance of ballistic panels in the wet state are deduced.

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.

Field Evaluation of the Pedostructure-Based Model (Kamel®)

USDA-ARS?s Scientific Manuscript database

This study involves a field evaluation of the pedostructure-based model Kamel and comparisons between Kamel and the Hydrus-1D model for predicting profile soil moisture. This paper also presents a sensitivity analysis of Kamel with an evaluation field site used as the base scenario. The field site u...

Affect-Based Adaptation of an Applied Video Game for Educational Purposes

ERIC Educational Resources Information Center

Bontchev, Boyan; Vassileva, Dessislava

2017-01-01

Purpose: This paper aims to clarify how affect-based adaptation can improve implicit recognition of playing style of individuals during game sessions. This study presents the "Rush for Gold" game using dynamic difficulty adjustment of tasks based on both player performance and affectation inferred through electrodermal activity and…

Effectiveness of Web-Based Psychological Interventions for Depression: A Meta-Analysis

ERIC Educational Resources Information Center

Cowpertwait, Louise; Clarke, Dave

2013-01-01

Web-based psychological interventions aim to make psychological treatments more accessible and minimize clinician input, but their effectiveness requires further examination. The purposes of the present study are to evaluate the outcomes of web-based interventions for treating depressed adults using meta-analytic techniques, and to examine…

Implementation of Multiple Intelligences Supported Project-Based Learning in EFL/ESL Classrooms

ERIC Educational Resources Information Center

Bas, Gokhan

2008-01-01

This article deals with the implementation of Multiple Intelligences supported Project-Based learning in EFL/ESL Classrooms. In this study, after Multiple Intelligences supported Project-based learning was presented shortly, the implementation of this learning method into English classrooms. Implementation process of MI supported Project-based…

School-Based Groups for Children and Adolescents of Divorce.

ERIC Educational Resources Information Center

Robson, Bonnie E.

1986-01-01

Presents typical reactions of adolescents to parental divorce. School based groups for adolescents of divorce can ameliorate the stress and act as a container for reactive impulsive behavior. Educators with a family studies/home economics background are ideally suited to lead such school-based groups. Techniques for establishing and developing…

Indium oxide based fiber optic SPR sensor

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

Shukla, Sarika; Sharma, Navneet K., E-mail: navneetk.sharma@jiit.ac.in

2016-05-06

Surface plasmon resonance based fiber optic sensor using indium oxide layer is presented and theoretically studied. It has been found that with increase in thickness of indium oxide layer beyond 170 nm, the sensitivity of SPR sensor decreases. 170 nm thick indium oxide layer based SPR sensor holds maximum sensitivity.

Computer-Based Molecular Modelling: Finnish School Teachers' Experiences and Views

ERIC Educational Resources Information Center

Aksela, Maija; Lundell, Jan

2008-01-01

Modern computer-based molecular modelling opens up new possibilities for chemistry teaching at different levels. This article presents a case study seeking insight into Finnish school teachers' use of computer-based molecular modelling in teaching chemistry, into the different working and teaching methods used, and their opinions about necessary…

Young Foreign Language Learners' Interactions during Task-Based Paired Assessments

ERIC Educational Resources Information Center

Butler, Yuko Goto; Zeng, Wei

2014-01-01

Despite the popularity of task-based language teaching (TBLT) in foreign language (FL) education at elementary school, it remains unclear how young learners' FL abilities can best be evaluated with tasks. The present study seeks to understand developmental differences in interactions among elementary-school students during task-based language…

Dispositions Supporting Elementary Interns in the Teaching of Reform-Based Science Materials

ERIC Educational Resources Information Center

Eick, Charles J.; Stewart, Bethany

2010-01-01

Dispositions supporting the teaching of science as structured inquiry by four elementary candidates are presented. Candidates were studied during student teaching based on their positive attitudes toward teaching science with reform-based materials in their methods course. Personal learning histories informed their attitudes, values, and beliefs…

Effects of the Case-Based Instruction Method on the Experience of Learning

ERIC Educational Resources Information Center

Amiri Farahani, Leila; Heidari, Tooba

2014-01-01

This semi-experimental study was conducted with twenty-seven midwifery students who were randomly allocated to either case-based instruction or lecture-based instruction groups. The selected subjects -- foetal intrapartum assessment, foetal antepartum assessment, ABO and Rh blood group system mismatch -- were presented in four ninety-minute…

Ultra wide-band localization and SLAM: a comparative study for mobile robot navigation.

PubMed

Segura, Marcelo J; Auat Cheein, Fernando A; Toibero, Juan M; Mut, Vicente; Carelli, Ricardo

2011-01-01

In this work, a comparative study between an Ultra Wide-Band (UWB) localization system and a Simultaneous Localization and Mapping (SLAM) algorithm is presented. Due to its high bandwidth and short pulses length, UWB potentially allows great accuracy in range measurements based on Time of Arrival (TOA) estimation. SLAM algorithms recursively estimates the map of an environment and the pose (position and orientation) of a mobile robot within that environment. The comparative study presented here involves the performance analysis of implementing in parallel an UWB localization based system and a SLAM algorithm on a mobile robot navigating within an environment. Real time results as well as error analysis are also shown in this work.

An Analysis of the Connectedness to Nature Scale Based on Item Response Theory.

PubMed

Pasca, Laura; Aragonés, Juan I; Coello, María T

2017-01-01

The Connectedness to Nature Scale (CNS) is used as a measure of the subjective cognitive connection between individuals and nature. However, to date, it has not been analyzed at the item level to confirm its quality. In the present study, we conduct such an analysis based on Item Response Theory. We employed data from previous studies using the Spanish-language version of the CNS, analyzing a sample of 1008 participants. The results show that seven items presented appropriate indices of discrimination and difficulty, in addition to a good fit. The remaining six have inadequate discrimination indices and do not present a good fit. A second study with 321 participants shows that the seven-item scale has adequate levels of reliability and validity. Therefore, it would be appropriate to use a reduced version of the scale after eliminating the items that display inappropriate behavior, since they may interfere with research results on connectedness to nature.

STOL propulsion systems

NASA Technical Reports Server (NTRS)

Denington, R. J.; Koenig, R. W.; Vanco, M. R.; Sagerser, D. A.

1972-01-01

The selection and the characteristics of quiet, clean propulsion systems for STOL aircraft are discussed. Engines are evaluated for augmentor wing and externally blown flap STOL aircraft with the engines located both under and over the wings. Some supporting test data are presented. Optimum engines are selected based on achieving the performance, economic, acoustic, and pollution goals presently being considered for future STOL aircraft. The data and results presented were obtained from a number of contracted studies and some supporting NASA inhouse programs, most of which began in early 1972. The contracts include: (1) two aircraft and mission studies, (2) two propulsion system studies, (3) the experimental and analytic work on the augmentor wing, and (4) the experimental programs on Q-Fan. Engines are selected and discussed based on aircraft economics using the direct operating cost as the primary criterion. This cost includes the cost of the crew, fuel, aircraft, and engine maintenance and depreciation.

The Effect of Game-Based Interventions in Rehabilitation of Diabetics: A Systematic Review and Meta-Analysis.

PubMed

Christensen, Jan; Valentiner, Laura Staun; Petersen, Rikke Juelsgaard; Langberg, Henning

2016-10-01

Game-based interventions have been proposed as a way to improve both patient adherence to physical activity (PA) and disease-related knowledge to achieve better self-management of blood glucose levels (HbA1c). The objective of this study was to systematically review the literature on the effect of game-based interventions on HbA1c, diabetes-related knowledge, and physical outcomes in rehabilitation of diabetes patients. We conducted a systematic literature search in MEDLINE, EMBASE, PEDro, Scopus, Cochrane Central Register of Controlled Trials, CINAHL, and Psych INFO in October 2014 based on a priori defined inclusion criteria: patients with diabetes (type 1 or type 2), game-based interventions, and randomized controlled trials. The database search identified 1,101 potential articles for screening, four of which were eligible for the present systematic review. Game-based interventions show no effect on HbA1c (three studies) standardized mean difference = -0.10, 95% confidence interval = [-0.33, 0.14] compared to usual care or waiting lists. Game-based interventions were superior to controls in improving health-related quality of life, muscle strength, and balance (one study). No difference was found between game-based interventions and usual care or waiting lists in terms of diabetes-related knowledge (one study). PA is important for diabetes management. The present review indicates that game-based interventions are not superior to ordinary PA in controlling HbA1c. Due to the weak methodological quality of the included studies and the very low body of evidence, the likelihood that the real effect of game-based interventions will be substantially different (i.e., large enough difference to possibly affect decision-making) is high.

Technology-Based Programs to Promote Walking Fluency or Improve Foot-Ground Contact during Walking: Two Case Studies of Adults with Multiple Disabilities

ERIC Educational Resources Information Center

Lancioni, Giulio E.; Singh, Nirbhay N.; O'Reilly, Mark F.; Sigafoos, Jeff; La Martire, Maria L.; Oliva, Doretta; Groeneweg, Jop

2012-01-01

These two case studies assessed technology-based programs for promoting walking fluency and improving foot-ground contact during walking with a man and a woman with multiple disabilities, respectively. The man showed breaks during walking and the woman presented with toe walking. The technology used in the studies included a microprocessor with…

Biography in the Study of Public Administration: Towards a Portrait of a Whitehall Mandarin

ERIC Educational Resources Information Center

Ribbins, Peter; Sherratt, Brian

2016-01-01

This paper reports on part of an on-going interview-based study of the eight permanent secretaries who served at the Department for Education from 1976 to 2012. Following a discussion of the relevance of biography to the study of public sector administrators, it presents a portrait of Sir Tim Lankester. Based on his own account and that of…

Analysis of Students' Online Information Searching Strategies, Exposure to Internet Information Pollution and Cognitive Absorption Levels Based on Various Variables

ERIC Educational Resources Information Center

Kurt, Adile Askim; Emiroglu, Bülent Gürsel

2018-01-01

The objective of the present study was to examine students' online information searching strategies, their cognitive absorption levels and the information pollution levels on the Internet based on different variables and to determine the correlation between these variables. The study was designed with the survey model, the study group included 198…

The Effects of Brain-Based Learning on the Academic Achievement of Students with Different Learning Styles

ERIC Educational Resources Information Center

Duman, Bilal

2010-01-01

The purpose of the present study is to investigate the effects of Brain-based learning (BBL) on the academic achievement of students with different learning styles. The study group consists of students from the department of Social Sciences Teacher Education in the Faculty of Education at Mugla University (N=68). In the study, a pre-test-post-test…

Simpson's Paradox: A Data Set and Discrimination Case Study Exercise

ERIC Educational Resources Information Center

Taylor, Stanley A.; Mickel, Amy E.

2014-01-01

In this article, we present a data set and case study exercise that can be used by educators to teach a range of statistical concepts including Simpson's paradox. The data set and case study are based on a real-life scenario where there was a claim of discrimination based on ethnicity. The exercise highlights the importance of performing…

Clinico-pathological study to evaluate oral lichen planus for the establishment of clinical and histopathological diagnostic criteria.

PubMed

Hiremath, Santhosh; Kale, Alka D; Hallikerimath, Seema

2015-01-01

Lichen planus and lichenoid lesions affecting the oral cavity show similar clinico-pathological features creating a diagnostic dilemma. Hence, the aim of the present study was to establish a clinical and histopathological correlation in the diagnosis of oral lichen planus, based on the modified WHO diagnostic criteria of oral lichen planus and oral lichenoid lesions proposed by Van der Meij and Van der Waal in 2003. In the present study, 100 cases of oral lichen planus were clinically and histopathologically analyzed. Out of the 100 cases, 50 were prospective and 50 were retrospective cases. Prospective cases were collected based on the clinical diagnosis of oral lichen planus and oral lichenoid lesion. Retrospective cases were collected based on the histopathological diagnosis of oral lichen planus. Both the clinical and histopathological analyses were performed based on a proposal for a set of modified diagnostic criteria of oral lichen planus and oral lichenoid lesion. A final diagnosis of oral lichen planus was made only after the correlation of the clinical diagnosis with the histopathological diagnosis. The interobserver agreement among three observers for both prospective and retrospective cases in the final diagnosis of oral lichen planus was found to be "good" to "very good" indicating high reproducibility. However, the final diagnoses of true oral lichen planus after clinico-pathological correlation in prospective and retrospective study groups appeared to be 38.0% and 54.0% respectively. The results of the present study revealed mild to moderate clinico-pathological correlation in the final diagnosis of oral lichen planus for the prospective and retrospective study groups respectively.

Block Play: Spatial Language with Preschool and School-Aged Children

ERIC Educational Resources Information Center

Cohen, Lynn E.; Emmons, Janet

2017-01-01

Implementing a play-based curriculum presents challenges for pre-service and in-service teachers given the current climate of standards and didactic pedagogies. This study highlights the value of playful learning and its rightful place in early childhood classrooms for children of all ages. The purpose of the present study was to investigate the…

Social Facilitation Effects by Pedagogical Conversational Agent: Lexical Network Analysis in an Online Explanation Task

ERIC Educational Resources Information Center

Hayashi, Yugo

2015-01-01

The present study investigates web-based learning activities of undergraduate students who generate explanations about a key concept taught in a large-scale classroom. The present study used an online system with Pedagogical Conversational Agent (PCA), asked to explain about the key concept from different points and provided suggestions and…

The Effectiveness of Classroom-Based Supplementary Video Presentations in Supporting Emergent Literacy Development in Early Childhood Education

ERIC Educational Resources Information Center

Sadik, Alaa M.; Badr, Khadeja

2012-01-01

This study investigated the impact of supplementary video presentations in supporting young children's emergent literacy development. Videos were produced by teachers using prototype software developed specifically for the purpose of this study. The software obtains media content from a variety of resources and devices, including webcam,…

The Introduction and Refinement of the Assessment of Digitally Recorded Audio Presentations

ERIC Educational Resources Information Center

Sinclair, Stefanie

2016-01-01

This case study critically evaluates benefits and challenges of a form of assessment included in a final year undergraduate Religious Studies Open University module, which combines a written essay task with a digital audio recording of a short oral presentation. Based on the analysis of student and tutor feedback and sample assignments, this study…

Repeated Challenge Studies: A Comparison of Union-Intersection Testing with Linear Modeling.

ERIC Educational Resources Information Center

Levine, Richard A.; Ohman, Pamela A.

1997-01-01

Challenge studies can be used to see whether there is a causal relationship between an agent of interest and a response. An approach based on union-intersection testing is presented that allows researchers to examine observations on a single subject and test the hypothesis of interest. An application using psychological data is presented. (SLD)

Student Enrichment in Mathematics: A Case Study with First Year University Students

ERIC Educational Resources Information Center

Wiggins, Harry; Harding, Ansie; Engelbrecht, Johann

2017-01-01

This paper presents an enrichment case study to showcase a possible avenue for attending to the needs of academically strong mathematics students. We report on a group of university students who were presented with the opportunity of exploring a specific first year mathematics topic deeper, using an inquiry-based learning approach as part of an…

An Overview of Markov Chain Methods for the Study of Stage-Sequential Developmental Processes

ERIC Educational Resources Information Center

Kapland, David

2008-01-01

This article presents an overview of quantitative methodologies for the study of stage-sequential development based on extensions of Markov chain modeling. Four methods are presented that exemplify the flexibility of this approach: the manifest Markov model, the latent Markov model, latent transition analysis, and the mixture latent Markov model.…

To Rest Assured: A Study of Artistic Development

ERIC Educational Resources Information Center

Edstrom, Ann-Mari

2008-01-01

This article concerns artistic development within the context of a Master of Fine Arts program in visual arts in Sweden, and presents an empirical study based on repeated interviews with a group of art students. The aim is to contribute to our present understanding of artistic development by focusing on changes in the relation between the student…

Permeable Reactive Zones for Groundwater Remediation

EPA Science Inventory

The presentation will cover aspects of the application of permeable reactive zones to treat contaminated ground water. Specific field studies will be discussed covering both granular iron-based and organic carbon-based reactive barriers. Specific contaminants addressed include:...

Experimental evaluation of high performance base course and road base asphalt concrete with electric arc furnace steel slags.

PubMed

Pasetto, Marco; Baldo, Nicola

2010-09-15

The paper presents the results of a laboratory study aimed at verifying the use of two types of electric arc furnace (EAF) steel slags as substitutes for natural aggregates, in the composition of base course and road base asphalt concrete (BBAC) for flexible pavements. The trial was composed of a preliminary study of the chemical, physical, mechanical and leaching properties of the EAF steel slags, followed by the mix design and performance characterization of the bituminous mixes, through gyratory compaction tests, permanent deformation tests, stiffness modulus tests at various temperatures, fatigue tests and indirect tensile strength tests. All the mixtures with EAF slags presented better mechanical characteristics than those of the corresponding asphalts with natural aggregate and satisfied the requisites for acceptance in the Italian road sector technical standards, thus resulting as suitable for use in road construction. Copyright 2010 Elsevier B.V. All rights reserved.

Vibrational response analysis of tires using a three-dimensional flexible ring-based model

NASA Astrophysics Data System (ADS)

Matsubara, Masami; Tajiri, Daiki; Ise, Tomohiko; Kawamura, Shozo

2017-11-01

Tire vibration characteristics influence noise, vibration, and harshness. Hence, there have been many investigations of the dynamic responses of tires. In this paper, we present new formulations for the prediction of tire tread vibrations below 150 Hz using a three-dimensional flexible ring-based model. The ring represents the tread including the belt, and the springs represent the tire sidewall stiffness. The equations of motion for lateral, longitudinal, and radial vibration on the tread are derived based on the assumption of inextensional deformation. Many of the associated numerical parameters are identified from experimental tests. Unlike most studies of flexible ring models, which mainly discussed radial and circumferential vibration, this study presents steady response functions concerning not only radial and circumferential but also lateral vibration using the three-dimensional flexible ring-based model. The results of impact tests described confirm the theoretical findings. The results show reasonable agreement with the predictions.

A statistical method for measuring activation of gene regulatory networks.

PubMed

Esteves, Gustavo H; Reis, Luiz F L

2018-06-13

Gene expression data analysis is of great importance for modern molecular biology, given our ability to measure the expression profiles of thousands of genes and enabling studies rooted in systems biology. In this work, we propose a simple statistical model for the activation measuring of gene regulatory networks, instead of the traditional gene co-expression networks. We present the mathematical construction of a statistical procedure for testing hypothesis regarding gene regulatory network activation. The real probability distribution for the test statistic is evaluated by a permutation based study. To illustrate the functionality of the proposed methodology, we also present a simple example based on a small hypothetical network and the activation measuring of two KEGG networks, both based on gene expression data collected from gastric and esophageal samples. The two KEGG networks were also analyzed for a public database, available through NCBI-GEO, presented as Supplementary Material. This method was implemented in an R package that is available at the BioConductor project website under the name maigesPack.

Health Information System in a Cloud Computing Context.

PubMed

Sadoughi, Farahnaz; Erfannia, Leila

2017-01-01

Healthcare as a worldwide industry is experiencing a period of growth based on health information technology. The capabilities of cloud systems make it as an option to develop eHealth goals. The main objectives of the present study was to evaluate the advantages and limitations of health information systems implementation in a cloud-computing context that was conducted as a systematic review in 2016. Science direct, Scopus, Web of science, IEEE, PubMed and Google scholar were searched according study criteria. Among 308 articles initially found, 21 articles were entered in the final analysis. All the studies had considered cloud computing as a positive tool to help advance health technology, but none had insisted too much on its limitations and threats. Electronic health record systems have been mostly studied in the fields of implementation, designing, and presentation of models and prototypes. According to this research, the main advantages of cloud-based health information systems could be categorized into the following groups: economic benefits and advantages of information management. The main limitations of the implementation of cloud-based health information systems could be categorized into the 4 groups of security, legal, technical, and human restrictions. Compared to earlier studies, the present research had the advantage of dealing with the issue of health information systems in a cloud platform. The high frequency of studies conducted on the implementation of cloud-based health information systems revealed health industry interest in the application of this technology. Security was a subject discussed in most studies due to health information sensitivity. In this investigation, some mechanisms and solutions were discussed concerning the mentioned systems, which would provide a suitable area for future scientific research on this issue. The limitations and solutions discussed in this systematic study would help healthcare managers and decision-makers take better and more efficient advantages of this technology and make better planning to adopt cloud-based health information systems.

A novel, fuzzy-based air quality index (FAQI) for air quality assessment

NASA Astrophysics Data System (ADS)

Sowlat, Mohammad Hossein; Gharibi, Hamed; Yunesian, Masud; Tayefeh Mahmoudi, Maryam; Lotfi, Saeedeh

2011-04-01

The ever increasing level of air pollution in most areas of the world has led to development of a variety of air quality indices for estimation of health effects of air pollution, though the indices have their own limitations such as high levels of subjectivity. Present study, therefore, aimed at developing a novel, fuzzy-based air quality index (FAQI ) to handle such limitations. The index developed by present study is based on fuzzy logic that is considered as one of the most common computational methods of artificial intelligence. In addition to criteria air pollutants (i.e. CO, SO 2, PM 10, O 3, NO 2), benzene, toluene, ethylbenzene, xylene, and 1,3-butadiene were also taken into account in the index proposed, because of their considerable health effects. Different weighting factors were then assigned to each pollutant according to its priority. Trapezoidal membership functions were employed for classifications and the final index consisted of 72 inference rules. To assess the performance of the index, a case study was carried out employing air quality data at five different sampling stations in Tehran, Iran, from January 2008 to December 2009, results of which were then compared to the results obtained from USEPA air quality index (AQI). According to the results from present study, fuzzy-based air quality index is a comprehensive tool for classification of air quality and tends to produce accurate results. Therefore, it can be considered useful, reliable, and suitable for consideration by local authorities in air quality assessment and management schemes. Fuzzy-based air quality index (FAQI).

High School Mentors in Brief: Findings from the Big Brothers Big Sisters School-Based Mentoring Impact Study. P/PV In Brief. Issue 8

ERIC Educational Resources Information Center

Jucovy, Linda; Herrera, Carla

2009-01-01

This issue of "Public/Private Ventures (P/PV) In Brief" is based on "High School Students as Mentors," a report that examined the efficacy of high school mentors using data from P/PV's large-scale random assignment impact study of Big Brothers Big Sisters school-based mentoring programs. The brief presents an overview of the findings, which…

Analysis of atmospheric trace constituents from high resolution infrared balloon-borne and ground-based solar absorption spectra

NASA Technical Reports Server (NTRS)

Goldman, A.; Murcray, F. J.; Rinsland, C. P.; Blatherwick, R. D.; Murcray, F. H.; Murcray, D. G.

1991-01-01

Results of ongoing studies of high-resolution solar absorption spectra aimed at the identification and quantification of trace constituents of importance in the chemistry of the stratosphere and upper troposphere are presented. An analysis of balloon-borne and ground-based spectra obtained at 0.0025/cm covering the 700-2200/cm interval is presented. The 0.0025/cm spectra, along with corresponding laboratory spectra, improves the spectral line parameters, and thus the accuracy of quantifying trace constituents. Results for COF2, F22, SF6, and other species are presented. The retrieval methods used for total column density and altitude distribution for both ground-based and balloon-borne spectra are also discussed.

Determining localized garment insulation values from manikin studies: computational method and results.

PubMed

Nelson, D A; Curlee, J S; Curran, A R; Ziriax, J M; Mason, P A

2005-12-01

The localized thermal insulation value expresses a garment's thermal resistance over the region which is covered by the garment, rather than over the entire surface of a subject or manikin. The determination of localized garment insulation values is critical to the development of high-resolution models of sensible heat exchange. A method is presented for determining and validating localized garment insulation values, based on whole-body insulation values (clo units) and using computer-aided design and thermal analysis software. Localized insulation values are presented for a catalog consisting of 106 garments and verified using computer-generated models. The values presented are suitable for use on volume element-based or surface element-based models of heat transfer involving clothed subjects.

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

Ellingson, W.A.

This broad-base materials engineering program, begun in October 1974, includes studies on both ceramic (refractory) and metallic materials presently being used or intended for use in coal-conversion systems. Appropriate laboratory and field experiments are integrated such that the results have immediate impact on the present pilot-plant and proposed demonstration-plant designs. The report presents the technical accomplishments.

The Effect of Grouping and Presenting Collocations on Retention

ERIC Educational Resources Information Center

Akpinar, Kadriye Dilek; Bardakçi, Mehmet

2015-01-01

The aim of this study is two-fold. Firstly, it attempts to determine the role of presenting collocations by organizing them based on (i) the keyword, (ii) topic related and (iii) grammatical aspect on retention of collocations. Secondly, it investigates the relationship between participants' general English proficiency and the presentation types…

Composition Studies with the Telescope Array Surface Detector

NASA Astrophysics Data System (ADS)

Kuznetsov, Mikhail; Piskunov, Maxim; Rubtsov, Grigory; Troitsky, Sergey; Zhezher, Yana

The results on ultra-high-energy cosmic-ray chemical composition based on the data from the Telescope Array surface-detector are presented. The method is based on the multivariate boosted decision tree (BDT) analysis which uses surface-detector observables. The results on average atomic mass in the energy range 1018.0-1020.0 eV are presented. A comparison with the Telescope Array hybrid results and the Pierre Auger Observatory surface detector results is shown.

Contract Monitoring in Agent-Based Systems: Case Study

NASA Astrophysics Data System (ADS)

Hodík, Jiří; Vokřínek, Jiří; Jakob, Michal

Monitoring of fulfilment of obligations defined by electronic contracts in distributed domains is presented in this paper. A two-level model of contract-based systems and the types of observations needed for contract monitoring are introduced. The observations (inter-agent communication and agents’ actions) are collected and processed by the contract observation and analysis pipeline. The presented approach has been utilized in a multi-agent system for electronic contracting in a modular certification testing domain.

Synthesis and Characterization of Exfoliated Graphene- and Graphene Oxide-Based Composites

NASA Astrophysics Data System (ADS)

Rasmi, K. R.; Chakrapani, K.; Sampath, S.

Graphene- and graphene oxide-based composites have attracted significant research interest in recent years, owing to their important applications in various technological fields. In the present study, we report the synthesis and characterization of graphene-bimetallic alloy composite and its use in sensing of a neurotransmitter, dopamine. The preparation and characterization of graphene oxide with metal oxides such as RuOx and Co3O4 are also presented.

FPGA Based "Intelligent Tap" Device for Real-Time Ethernet Network Monitoring

NASA Astrophysics Data System (ADS)

Cupek, Rafał; Piękoś, Piotr; Poczobutt, Marcin; Ziębiński, Adam

This paper describes an "Intelligent Tap" - hardware device dedicated to support real-time Ethernet networks monitoring. Presented solution was created as a student project realized in Institute of Informatics, Silesian University of Technology with support from Softing A.G company. Authors provide description of realized FPGA based "Intelligent Tap" architecture dedicated for Real-Time Ethernet network monitoring systems. The practical device realization and feasibility study conclusions are presented also.

A Corpus Based Study on the Use of Preposition of Time "On" and "At" in Argumentative Essays of Form 4 and Form 5 Malaysian Students

ERIC Educational Resources Information Center

Loke, Darina Lokeman; Ali, Juliana; Anthony, Norin Norain Zulkifli

2013-01-01

This article presents a corpus-based investigation on English prepositions of time presented in the argumentative essays of Form 4 and Form 5 Malaysian secondary students in the MCSAW corpus. The aims were to find out the distribution patterns and the common errors in the use of preposition of time, "on" and "at". This corpus…

Orbital transfer vehicle launch operations study: Automated technology knowledge base, volume 4

NASA Technical Reports Server (NTRS)

1986-01-01

A simplified retrieval strategy for compiling automation-related bibliographies from NASA/RECON is presented. Two subsets of NASA Thesaurus subject terms were extracted: a primary list, which is used to obtain an initial set of citations; and a secondary list, which is used to limit or further specify a large initial set of citations. These subject term lists are presented in Appendix A as the Automated Technology Knowledge Base (ATKB) Thesaurus.

AlgiMatrix™-Based 3D Cell Culture System as an In Vitro Tumor Model: An Important Tool in Cancer Research.

PubMed

Godugu, Chandraiah; Singh, Mandip

2016-01-01

Routinely used two-dimensional cell culture-based models often fail while translating the observations into in vivo models. This setback is more common in cancer research, due to several reasons. The extracellular matrix and cell-to-cell interactions are not present in two-dimensional (2D) cell culture models. Diffusion of drug molecules into cancer cells is hindered by barriers of extracellular components in in vivo conditions, these barriers are absent in 2D cell culture models. To better mimic or simulate the in vivo conditions present in tumors, the current study used the alginate based three-dimensional cell culture (AlgiMatrix™) model, which resembles close to the in vivo tumor models. The current study explains the detailed protocols involved in AlgiMatrix™ based in vitro non-small-cell lung cancer (NSCLC) models. The suitability of this model was studied by evaluating, cytotoxicity, apoptosis, and penetration of nanoparticles into the in vitro tumor spheroids. This study also demonstrated the effect of EphA2 receptor targeted docetaxel-loaded nanoparticles on MDA-MB-468 TNBC cell lines. The methods section is subdivided into three subsections such as (1) preparation of AlgiMatrix™-based 3D in vitro tumor models and cytotoxicity assays, (2) free drug and nanoparticle uptake into spheroid studies, and (3) western blot, IHC, and RT-PCR studies.

Reaction time for trimolecular reactions in compartment-based reaction-diffusion models

NASA Astrophysics Data System (ADS)

Li, Fei; Chen, Minghan; Erban, Radek; Cao, Yang

2018-05-01

Trimolecular reaction models are investigated in the compartment-based (lattice-based) framework for stochastic reaction-diffusion modeling. The formulae for the first collision time and the mean reaction time are derived for the case where three molecules are present in the solution under periodic boundary conditions. For the case of reflecting boundary conditions, similar formulae are obtained using a computer-assisted approach. The accuracy of these formulae is further verified through comparison with numerical results. The presented derivation is based on the first passage time analysis of Montroll [J. Math. Phys. 10, 753 (1969)]. Montroll's results for two-dimensional lattice-based random walks are adapted and applied to compartment-based models of trimolecular reactions, which are studied in one-dimensional or pseudo one-dimensional domains.

Solar Electric and Chemical Propulsion Technology Applications to a Titan Orbiter/Lander Mission

NASA Technical Reports Server (NTRS)

Cupples, Michael

2007-01-01

Several advanced propulsion technology options were assessed for a conceptual Titan Orbiter/Lander mission. For convenience of presentation, the mission was broken into two phases: interplanetary and Titan capture. The interplanetary phase of the mission was evaluated for an advanced Solar Electric Propulsion System (SEPS), while the Titan capture phase was evaluated for state-of-art chemical propulsion (NTO/Hydrazine), three advanced chemical propulsion options (LOX/Hydrazine, Fluorine/Hydrazine, high Isp mono-propellant), and advanced tank technologies. Hence, this study was referred to as a SEPS/Chemical based option. The SEPS/Chemical study results were briefly compared to a 2002 NASA study that included two general propulsion options for the same conceptual mission: an all propulsive based mission and a SEPS/Aerocapture based mission. The SEP/Chemical study assumed identical science payload as the 2002 NASA study science payload. The SEPS/Chemical study results indicated that the Titan mission was feasible for a medium launch vehicle, an interplanetary transfer time of approximately 8 years, an advanced SEPS (30 kW), and current chemical engine technology (yet with advanced tanks) for the Titan capture. The 2002 NASA study showed the feasibility of the mission based on a somewhat smaller medium launch vehicle, an interplanetary transfer time of approximately 5.9 years, an advanced SEPS (24 kW), and advanced Aerocapture based propulsion technology for the Titan capture. Further comparisons and study results were presented for the advanced chemical and advanced tank technologies.

Impact of School-Based HIV Prevention Program in Post-Conflict Liberia

ERIC Educational Resources Information Center

Atwood, Katharine A.; Kennedy, Stephen B.; Shamblen, Steve; Tegli, Jemee; Garber, Salome; Fahnbulleh, Pearl W.; Korvah, Prince M.; Kolubah, Moses; Mulbah-Kamara, Comfort; Fulton, Shannon

2012-01-01

This paper presents findings of a feasibility study to adapt and evaluate the impact of an evidence-based HIV prevention intervention on sexual risk behaviors of in-school 6th grade youth in post-conflict Liberia (n = 812). The study used an attention-matched, group randomized controlled trial. Four matched pairs of elementary/middle schools in…

Development of Analytical Competencies and Professional Identities through School-Based Learning in Denmark

ERIC Educational Resources Information Center

Andresen, Bent B.

2015-01-01

This article presents the main results of a case study on teachers' professional development in terms of competence and identity. The teachers involved in the study are allocated time by their schools to participate in professional "affinity group" meetings. During these meetings, the teachers gather and analyse school-based data about…

Task-Based Oral Computer-Mediated Communication and L2 Vocabulary Acquisition

ERIC Educational Resources Information Center

Yanguas, Inigo

2012-01-01

The present study adds to the computer-mediated communication (CMC) literature by exploring oral learner-to-learner interaction using Skype, a free and widely used Internet software program. In particular, this task-based study has a two-fold goal. Firstly, it explores possible differences between two modes of oral CMC (audio and video) and…

Multilingual and Multicultural Task-Based Learning Scenarios: A Pilot Study from the MAGICC Project

ERIC Educational Resources Information Center

Álvarez, Inma; Pérez-Cavana, María Luisa

2015-01-01

In this article we report on the results of a pilot study on the use of task-based multilingual and multicultural professional scenarios for higher education teachers and learners at BA and MA level. The scenarios reflect new learning outcomes and assessment criteria for the presently under-conceptualised domain of communication in multilingual…

Treating Selective Mutism Using Modular CBT for Child Anxiety: A Case Study

ERIC Educational Resources Information Center

Reuther, Erin T.; Davis, Thompson E., III; Moree, Brittany N.; Matson, Johnny L.

2011-01-01

Selective mutism is a rare, debilitating condition usually seen in children. Unfortunately, there is little research examining effective treatments for this disorder, and designing an evidence-based treatment plan can be difficult. This case study presents the evidence-based treatment of an 8-year-old Caucasian boy with selective mutism using an…

Tool Mediation in Focus on Form Activities: Case Studies in a Grammar-Exploring Environment

ERIC Educational Resources Information Center

Karlstrom, Petter; Cerratto-Pargman, Teresa; Lindstrom, Henrik; Knutsson, Ola

2007-01-01

We present two case studies of two different pedagogical tasks in a Computer Assisted Language Learning environment called Grim. The main design principle in Grim is to support "Focus on Form" in second language pedagogy. Grim contains several language technology-based features for exploring linguistic forms (static, rule-based and statistical),…

School Staff Responses to Gender-Based Bullying as Moral Interpretation: An Exploratory Study

ERIC Educational Resources Information Center

Anagnostopoulos, Dorothea; Buchanan, Nicole T.; Pereira, Christine; Lichty, Lauren F.

2009-01-01

Gender-based bullying is the most common form of violence that students encounter in U.S. public schools. Several large-scale surveys reveal its consequences for students. Fewer studies examine how school staff members make sense of and respond to such violence. The authors address this knowledge gap by presenting analyses of interviews conducted…

Effect of a Classroom-Based Behavioral Intervention Package on the Improvement of Children's Sitting Posture in Japan

ERIC Educational Resources Information Center

Noda, Wataru; Tanaka-Matsumi, Junko

2009-01-01

The present study evaluates the effect of a classroom-based behavioral intervention package to improve Japanese elementary school children's sitting posture in regular classrooms (N = 68). This study uses a multiple-baseline design across two classrooms with a modified repeated reversal within each class. The article defines appropriate sitting…

Polysemous Verbs and Modality in Native and Non-Native Argumentative Writing: A Corpus-Based Study

ERIC Educational Resources Information Center

Salazar, Danica; Verdaguer, Isabel

2009-01-01

The present study is a corpus-based analysis of a selection of polysemous lexical verbs used to express modality in student argumentative writing. Twenty-three lexical verbs were searched for in three 100,000-word corpora of argumentative essays written in English by American, Filipino and Spanish university students. Concordance lines were…

Dramatic Impact of Action Research of Arts-Based Teaching on At-Risk Students

ERIC Educational Resources Information Center

Li, Xin; Kenzy, Patty; Underwood, Lucy; Severson, Laura

2015-01-01

This study was presented at the American Educational Research Association 2012 conference in Vancouver, Canada. The study explored how action research of arts-based teaching (ABT) impacted at-risk students in three urban public schools in southern California, USA. ABT was defined as using arts, music, drama, and dance in teaching other subjects. A…

Using Problem-Based Learning Software with At-Risk Students: A Case Study

ERIC Educational Resources Information Center

Samsonov, Pavel; Pedersen, Susan; Hill, Christine L.

2006-01-01

In an extension of research examining student-centered pedagogy, the present case study examined how at-risk students used Alien Rescue, a problem-based learning (PBL) software program for middle school science. Twenty-nine participants were observed and interviewed over the twelve class days in which they were engaged in Alien Rescue. Students'…

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…

A Community-Based Research Approach to Develop an Educational Web Portal

ERIC Educational Resources Information Center

Preiser-Houy, Lara; Navarrete, Carlos J.

2011-01-01

Service-learning projects are becoming more prevalent in Information Systems education. This study explores the use of community-based research, a special kind of a service-learning strategy, in an Information Systems web development course. The paper presents a case study of a service-learning project to develop an educational web portal for a…

Promoting Environmental Justice through Community-Based Participatory Research: The Role of Community and Partnership Capacity

ERIC Educational Resources Information Center

Minkler, Meredith; Vasquez, Victoria Breckwich; Tajik, Mansoureh; Petersen, Dana

2008-01-01

Community-based participatory research (CBPR) increasingly is being used to study and address environmental justice. This article presents the results of a cross-site case study of four CBPR partnerships in the United States that researched environmental health problems and worked to educate legislators and promote relevant public policy. The…

A Laboratory-Based Study of the Relationship between Childhood Abuse and Experiential Avoidance among Inner-City Substance Users: The Role of Emotional Nonacceptance

ERIC Educational Resources Information Center

Gratz, Kim L.; Bornovalova, Marina A.; Delany-Brumsey, Ayesha; Nick, Bettina; Lejuez, C. W.

2007-01-01

Despite the theorized centrality of experiential avoidance in abuse-related psychopathology, empirical examinations of the relationship between childhood abuse and experiential avoidance remain limited. The present study adds to the extant literature on this relationship, providing a laboratory-based investigation of the relationships between…

Pilot Study to Gauge Acceptability of a Mindfulness-Based, Family-Focused Preventive Intervention

ERIC Educational Resources Information Center

Duncan, Larissa G.; Coatsworth, J. Douglas; Greenberg, Mark T.

2009-01-01

The purpose of the present study was to conduct a test of acceptability of a new model for family-focused drug prevention programs for families of early adolescents. An existing evidence-based behavioral intervention, the Strengthening Families Program: For Parents and Youth 10-14 (SFP), was adapted to include concepts and activities related to…

The Effects of an Experiential Service-Learning Project on Residential Interior Design Students' Attitudes toward Design and Community

ERIC Educational Resources Information Center

Gomez-Lanier, Lilia

2016-01-01

This mixed research methods study explores whether project-based service-learning projects promote greater learning than standard project-based projects and whether introduced earlier into the curriculum promotes a greater student understanding of the world issues affecting their community. The present study focused on comparing sophomore and…

Developing Business Management Students' Persuasive Writing through Blog-Based Peer-Feedback

ERIC Educational Resources Information Center

Sayed, Osama H.

2010-01-01

The present study attempted to investigate the effect of using blog-based peer feedback on the persuasive writing of EFL business management students at the community college in Bisha, King Khalid University, Saudi Arabia. The study used a pre-test/post-test experimental and control group design. An experimental group and a control group were…

Investigating Pre-Service Early Childhood Teachers' Attitudes towards the Computer Based Education in Science Activities

ERIC Educational Resources Information Center

Yilmaz, Nursel; Alici, Sule

2011-01-01

The purpose of this study was to investigate pre-service early childhood teachers' attitudes towards using Computer Based Education (CBE) while implementing science activities. More specifically, the present study examined the effect of different variables such as gender, year in program, experience in preschool, owing a computer, and the…

Learning Physics through Project-Based Learning Game Techniques

ERIC Educational Resources Information Center

Baran, Medine; Maskan, Abdulkadir; Yasar, Seyma

2018-01-01

The aim of the present study, in which Project and game techniques are used together, is to examine the impact of project-based learning games on students' physics achievement. Participants of the study consist of 34 9th grade students (N = 34). The data were collected using achievement tests and a questionnaire. Throughout the applications, the…

LGB-Affirmative Cognitive Behavioral Treatment for Social Anxiety: A Case Study Applying Evidence-Based Practice Principles

ERIC Educational Resources Information Center

Walsh, Kate; Hope, Debra A.

2010-01-01

Guided by the American Psychological Association's principles of evidence-based practice, this article reviews a single-case treatment outcome study whereby a client characteristic, sexual identity, was integrated into the assessment and treatment of social anxiety symptoms. The case involved a young adult European-American male who presented to a…

Evaluating the Accessibility of Web-Based Instruction for Students with Disabilities.

ERIC Educational Resources Information Center

Hinn, D. Michelle

This paper presents the methods and results of a year-long evaluation study, conducted for the purpose of determining disability accessibility barriers and potential solutions for those barriers found in four World Wide Web-based learning environments. The primary questions used to frame the evaluation study were: (1) Are there any features of the…

Figurative Language Comprehension in Individuals with Autism Spectrum Disorder: A Meta-Analytic Review

ERIC Educational Resources Information Center

Kalandadze, Tamar; Norbury, Courtenay; Naerland, Terje; Naess, Kari-Anne B.

2018-01-01

We present a meta-analysis of studies that compare figurative language comprehension in individuals with autism spectrum disorder and in typically developing controls who were matched based on chronological age or/and language ability. A total of 41 studies and 45 independent effect sizes were included based on predetermined inclusion criteria.…

An Analysis of Pre-Service Elementary Teachers' Understanding of Inquiry-Based Science Teaching

ERIC Educational Resources Information Center

Lee, Carole K.; Shea, Marilyn

2016-01-01

This study examines how pre-service elementary teachers (PSETs) view inquiry-based science learning and teaching, and how the science methods course builds their confidence to teach inquiry science. Most PSETs think that inquiry is asking students questions rather than a formal set of pedagogical tools. In the present study, three groups of PSETs…

The Stimulation of Students' Interest in the Teaching by Competency-Based Approach: Latin American Perspective

ERIC Educational Resources Information Center

Zhyzhko, Olena

2017-01-01

This article presents the results of scientific-pedagogical research, which consisted in identifying, what are the best strategies of stimulation of students' interest in the teaching by competency-based approach studying the works of Latin American scientists. With support in the pedagogic-comparative study the author has found out that in the…

Problem-Based Learning in an Online Course: A Case Study

ERIC Educational Resources Information Center

Cheaney, James D.; Ingebritsen, Thomas S.

2005-01-01

Problem-based learning (PBL) is the use of a "real world" problem or situation as a context for learning. The present study explores the use of PBL in an online biotechnology course. In the PBL unit, student groups dealt with the ethical, legal, social, and human issues surrounding pre-symptomatic DNA testing for a genetic disease. Issues…

Pedagogical Values of Mobile-Assisted Task-Based Activities to Enhance Speaking Skill

ERIC Educational Resources Information Center

Mohammadi, Mojtaba; Safdari, Nastaran

2015-01-01

The purpose of the present study was to examine the impact of online mobile-assisted task-based activities on improving Iranian intermediate English as a Foreign Language (EFL) learners' speaking skills. To achieve the purpose of the study, 90 intermediate language learners were selected ranging between 13 to 16 years old and divided into three…

Examining the Needs of Paediatric Nurses Caring for Children and Young People Presenting with Self-Harm/Suicidal Behaviour on General Paediatric Wards: Findings from a Small-Scale Study

ERIC Educational Resources Information Center

Fisher, Gemma; Foster, Celeste

2016-01-01

This article reports on the process and findings from a small-scale qualitative research study. The study intended to develop an evidence-based care plan/pathway for children and young people in paediatric inpatient settings presenting with self-harm/suicidal behaviour. The article includes a critical review of unanticipated challenges of…

Configurations of Activity: From the Coupling of Individual Actions to the Emergence of Collective Activity. A Study of Mathematics Teaching Situation in Primary School

ERIC Educational Resources Information Center

Veyrunes, Philippe; Gal-Petitfaux, Nathalie; Durand, Marc

2009-01-01

This article presents and uses the notion of configuration of activity, which extends the Norbert Elias's original concept of social configuration based on the study and analysis of individual and collective activity. Although this concept embraces all types of social activities, in the present study the authors used it to describe and analyse…

A Systematic Review of Play-Based Interventions for Students with ADHD: Implications for School-Based Occupational Therapists

ERIC Educational Resources Information Center

Cornell, Heidi R.; Lin, Tiffany Ting; Anderson, Jeffrey Alvin

2018-01-01

The results are presented from a systematic review of the literature that examined findings of published studies about play-based interventions for children and youth with ADHD. Guided by the research question, "What is the current status of evidence for using play-based interventions to improve outcomes for students with ADHD?," this…

Evaluation of E-Rat, a Computer-based Rat Dissection in Terms of Student Learning Outcomes.

ERIC Educational Resources Information Center

Predavec, Martin

2001-01-01

Presents a study that used computer-based rat anatomy to compare student learning outcomes from computer-based instruction with a conventional dissection. Indicates that there was a significant relationship between the time spent on both classes and the marks gained. Shows that computer-based instruction can be a viable alternative to the use of…

The Impact of Evidence-Based Practice Implementation and Fidelity Monitoring on Staff Turnover: Evidence for a Protective Effect

ERIC Educational Resources Information Center

Aarons, Gregory A.; Sommerfeld, David H.; Hecht, Debra B.; Silovsky, Jane F.; Chaffin, Mark J.

2009-01-01

Staff retention is an ongoing challenge in mental health and community-based service organizations. Little is known about the impact of evidence-based practice implementation on the mental health and social service workforce. The present study examined the effect of evidence-based practice implementation and ongoing fidelity monitoring on staff…

The Quality of Maternal Secure-Base Scripts Predicts Children's Secure-Base Behavior at Home in Three Sociocultural Groups

ERIC Educational Resources Information Center

Vaughn, Brian E.; Coppola, Gabrielle; Verissimo, Manuela; Monteiro, Ligia; Santos, Antonio Jose; Posada, German; Carbonell, Olga A.; Plata, Sandra J.; Waters, Harriet S.; Bost, Kelly K.; McBride, Brent; Shin, Nana; Korth, Bryan

2007-01-01

The secure-base phenomenon is central to the Bowlby/Ainsworth theory of attachment and is also central to the assessment of attachment across the lifespan. The present study tested whether mothers' knowledge about the secure-base phenomenon, as assessed using a recently designed wordlist prompt measure for eliciting attachment-relevant stories,…

The Prevalence of Personality Disorders among Emergency Nurses Based on MMPI-2 Questionnaire; a Cross-sectional Study.

PubMed

Kashani, Parvin; Mirbaha, Sahar; Forouzanfar, Mohammad Mehdi; Meschi, Farahnaz; Baratloo, Alireza

2017-01-01

The prevalence of behavioral disorders is substantially higher in stressful working environments such as emergency departments. The present study aimed to evaluate the prevalence of personality disorders among emergency nurses. In the present epidemiologic study, the prevalence of personality disorders among emergency nurses of three educational hospitals, Tehran, Iran, were evaluated based on Minnesota Multiphasic Personality Inventory-2 (MMPI-2) test. After the questionnaires were filled, data were entered to a special software for MMPI-2 test and the final result was interpreted based on the opinion of a clinical psychologist. Findings were reported using descriptive statistics. 102 emergency nurses with the mean age of 30.2 ± 5.6 years were enrolled (100% female; 100% with master's degree in nursing). The mean working time and experience of studied nurses were 210.8 ± 47.9 hours/month (130-370) and 4.1 ± 3.6 years (1-20), respectively. 32 (31.4%) cases showed symptoms of personality disorders The most common personality disorder detected in this study was somatization with 8.8%, hysteria with 6.9% prevalence, and pollyannaish with 4.9%. Among the studied factors only recent history of unpleasant event has significant correlation with existence of personality disorders (p = 0.015). The present study showed that somatization, hysteria, and pollyannaish were the most common personality disorders among the emergency nurses. History of an unpleasant event in the past year was the only effective factor in existence of personality disorders in the studied nurses.

A web-based intervention for elementary school teachers of students with attention-deficit/hyperactivity disorder (ADHD).

PubMed

Barnett, Brittany; Corkum, Penny; Elik, Nezihe

2012-05-01

The goal of the present study was to determine whether a web-based medium is an effective tool for supporting knowledge, attitude, and behavior change in teachers of elementary school children with attention-deficit/hyperactivity disorder (ADHD). Nineteen teachers from Nova Scotia, Canada completed a 7-week intervention that consisted of presentations, web links, and discussion board activities related to different aspects of ADHD. Teachers' knowledge positively changed from pre- to post-intervention (p = .03), as did teachers' attitudes related to perceived control in their classrooms (p = .001) and competence in teaching (p < .0001). The study demonstrated that a web-based medium is a useful tool for knowledge creation and translation and has potential as a means of providing professional development to teachers about ADHD.

Enhancement of critical heat flux in nucleate boiling of nanofluids: a state-of-art review

PubMed Central

2011-01-01

Nanofluids (suspensions of nanometer-sized particles in base fluids) have recently been shown to have nucleate boiling critical heat flux (CHF) far superior to that of the pure base fluid. Over the past decade, numerous experimental and analytical studies on the nucleate boiling CHF of nanofluids have been conducted. The purpose of this article is to provide an exhaustive review of these studies. The characteristics of CHF enhancement in nanofluids are systemically presented according to the effects of the primary boiling parameters. Research efforts to identify the effects of nanoparticles underlying irregular enhancement phenomena of CHF in nanofluids are then presented. Also, attempts to explain the physical mechanism based on available CHF theories are described. Finally, future research needs are identified. PMID:21711949

Construction of a quartz spherical analyzer: application to high-resolution analysis of the Ni Kα emission spectrum

DOE PAGES

Honnicke, Marcelo Goncalves; Bianco, Leonardo M.; Ceppi, Sergio A.; ...

2016-08-10

The construction and characterization of a focusing X-ray spherical analyzer based on α-quartz 4more » $$\\overline{4}$$04 are presented. For this study, the performance of the analyzer was demonstrated by applying it to a high-resolution X-ray spectroscopy study of theKα 1,2emission spectrum of Ni. An analytical representation based on physical grounds was assumed to model the shape of the X-ray emission lines. Satellite structures assigned to 3dspectator hole transitions were resolved and determined as well as their relative contribution to the emission spectrum. The present results on 1s -13d -1shake probabilities support a recently proposed calculation framework based on a multi-configuration atomic model.« less

Construction of a quartz spherical analyzer: application to high-resolution analysis of the Ni Kα emission spectrum

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

Honnicke, Marcelo Goncalves; Bianco, Leonardo M.; Ceppi, Sergio A.

The construction and characterization of a focusing X-ray spherical analyzer based on α-quartz 4more » $$\\overline{4}$$04 are presented. For this study, the performance of the analyzer was demonstrated by applying it to a high-resolution X-ray spectroscopy study of theKα 1,2emission spectrum of Ni. An analytical representation based on physical grounds was assumed to model the shape of the X-ray emission lines. Satellite structures assigned to 3dspectator hole transitions were resolved and determined as well as their relative contribution to the emission spectrum. The present results on 1s -13d -1shake probabilities support a recently proposed calculation framework based on a multi-configuration atomic model.« less

Experimental realization of nondestructive discrimination of Bell states using a five-qubit quantum computer

NASA Astrophysics Data System (ADS)

Sisodia, Mitali; Shukla, Abhishek; Pathak, Anirban

2017-12-01

A scheme for distributed quantum measurement that allows nondestructive or indirect Bell measurement was proposed by Gupta et al [1]. In the present work, Gupta et al.'s scheme is experimentally realized using the five-qubit super-conductivity-based quantum computer, which has been recently placed in cloud by IBM Corporation. The experiment confirmed that the Bell state can be constructed and measured in a nondestructive manner with a reasonably high fidelity. A comparison of the outcomes of this study and the results obtained earlier in an NMR-based experiment (Samal et al. (2010) [10]) has also been performed. The study indicates that to make a scalable SQUID-based quantum computer, errors introduced by the gates (in the present technology) have to be reduced considerably.

System Study at SUNY College Bookstore/Oswego

ERIC Educational Resources Information Center

DeVita, Richard; And Others

1975-01-01

A system study of the textbook ordering department is presented including systems flow chart, chart of activities, and description of operations and procedures for utilizing the computer system. Changes based on the study are noted. (JT)

Stroke risk after nonstroke emergency department dizziness presentations: a population-based cohort study.

PubMed

Kerber, Kevin A; Zahuranec, Darin B; Brown, Devin L; Meurer, William J; Burke, James F; Smith, Melinda A; Lisabeth, Lynda D; Fendrick, A Mark; McLaughlin, Thomas; Morgenstern, Lewis B

2014-06-01

Acute stroke is a serious concern in emergency department (ED) dizziness presentations. Prior studies, however, suggest that stroke is actually an unlikely cause of these presentations. Lacking are data on short- and long-term follow-up from population-based studies to establish stroke risk after presumed nonstroke ED dizziness presentations. From May 8, 2011 to May 7, 2012, patients ≥45 years of age presenting to EDs in Nueces County, Texas, with dizziness, vertigo, or imbalance were identified, excluding those with stroke as the initial diagnosis. Stroke events after the ED presentation up to October 2, 2012 were determined using the BASIC (Brain Attack Surveillance in Corpus Christi) study, which uses rigorous surveillance and neurologist validation. Cumulative stroke risk was calculated using Kaplan-Meier estimates. A total of 1,245 patients were followed for a median of 347 days (interquartile range [IQR] = 230-436 days). Median age was 61.9 years (IQR = 53.8-74.0 years). After the ED visit, 15 patients (1.2%) had a stroke. Stroke risk was 0.48% (95% confidence interval [CI] = 0.22-1.07%) at 2 days, 0.48% (95% CI = 0.22-1.07%) at 7 days, 0.56% (95% CI = 0.27-1.18%) at 30 days, 0.56% (95% CI = 0.27-1.18%) at 90 days, and 1.42% (95% CI = 0.85-2.36%) at 12 months. Using rigorous case ascertainment and outcome assessment in a population-based design, we found that the risk of stroke after presumed nonstroke ED dizziness presentations is very low, supporting a nonstroke etiology to the overwhelming majority of original events. High-risk subgroups likely exist, however, because most of the 90-day stroke risk occurred within 2 days. Vascular risk stratification was insufficient to identify these cases. © 2014 American Neurological Association.

Schiff base-Poloxamer P85 combination demonstrates chemotherapeutic effect on prostate cancer cells in vitro.

PubMed

Demirci, Selami; Doğan, Ayşegül; Türkmen, Neşe Başak; Telci, Dilek; Rizvanov, Albert A; Şahin, Fikrettin

2017-02-01

Prostate cancer is a multistep and complicated cancer type that is regulated by androgens at the cellular level and remains the second commonest cause of death among men. Discovery and development of novel chemotherapeutic agents enabling rapid tumor cell death with minimal toxic effects to healthy tissues might greatly improve the safety of chemotherapy. The present study evaluates the anti-cancer activity of a novel heterodinuclear copper(II)Mn(II) complex (Schiff base) in combination with poly(ethylene oxide) and poly(propylene oxide) block copolymer (Pluronic) P85. We used assays for cell proliferation, apoptosis, cell migration and invasion, DNA binding and cleavage to elucidate the molecular mechanisms of action, in addition to the anti-inflammatory potency of the new combination. The combined treatment of Schiff base and P85 lead to a remarkable anti-cancer effect on prostate cancer cell lines. Cell proliferation was inhibited in Schiff base-P85 treatment. The activity of this formulation is on DNA binding and cleavage and prevents inflammation in in vitro conditions. This is the first study presenting the anti-cancer activity of the present Schiff base derivative and its combination with P85 to treat prostate cancer in vitro. Copyright © 2016 Elsevier Masson SAS. All rights reserved.

LC Filters for FDM Readout of the X-IFU TES Calorimeter Instrument on Athena

NASA Astrophysics Data System (ADS)

Bruijn, Marcel P.; van der Linden, Anton J.; Ferrari, Lorenza; Gottardi, Luciano; van der Kuur, Jan; den Hartog, Roland H.; Akamatsu, Hiroki; Jackson, Brian D.

2018-05-01

The current status of lithographic superconducting LC filters for use in the Athena-X-IFU instrument is described. We present the fabrication process and characterization results at room temperature, 4 K and 50 mK. We also present an optimization study of the quality topics, where finite element modeling is used together with experimental validation structures. For the a-Si:H-based capacitors and Nb-based coils, presently the component fabrication yield is about 99% and the effective series resistance at 50 mK is lower than 1.5 mΩ.

India-based neutrino observatory (INO): Physics reach and status report

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

Indumathi, D.

We present a review of the physics reach and current status of the proposed India-based Neutrino Observatory (INO). We briefly outline details of the INO location and the present status of detector development. We then present the physics goals and simulation studies of the main detector, the magnetised Iron Calorimeter (ICAL) detector, to be housed in INO. The ICAL detector would make precision measurements of neutrino oscillation parameters with atmospheric neutrinos including a measurement of the neutrino mass hierarchy. Additional synergies with other experiments due to the complete insensitivity of ICAL to the CP phase are also discussed.

Operational VGOS Scheduling

NASA Astrophysics Data System (ADS)

Searle, Anthony; Petrachenko, Bill

2016-12-01

The VLBI Global Observing System (VGOS) has been designed to take advantage of advances in data recording speeds and storage capacity, allowing for smaller and faster antennas, wider bandwidths, and shorter observation durations. Here, schedules for a ``realistic" VGOS network, frequency sequences, and expanded source lists are presented using a new source-based scheduling algorithm. The VGOS aim for continuous observations presents new operational challenges. As the source-based strategy is independent of the observing network, there are operational advantages which allow for more flexible scheduling of continuous VLBI observations. Using VieVS, simulations of several schedules are presented and compared with previous VGOS studies.

The predictive value of the sacral base pressure test in detecting specific types of sacroiliac dysfunction

PubMed Central

Mitchell, Travis D.; Urli, Kristina E.; Breitenbach, Jacques; Yelverton, Chris

2007-01-01

Abstract Objective This study aimed to evaluate the validity of the sacral base pressure test in diagnosing sacroiliac joint dysfunction. It also determined the predictive powers of the test in determining which type of sacroiliac joint dysfunction was present. Methods This was a double-blind experimental study with 62 participants. The results from the sacral base pressure test were compared against a cluster of previously validated tests of sacroiliac joint dysfunction to determine its validity and predictive powers. The external rotation of the feet, occurring during the sacral base pressure test, was measured using a digital inclinometer. Results There was no statistically significant difference in the results of the sacral base pressure test between the types of sacroiliac joint dysfunction. In terms of the results of validity, the sacral base pressure test was useful in identifying positive values of sacroiliac joint dysfunction. It was fairly helpful in correctly diagnosing patients with negative test results; however, it had only a “slight” agreement with the diagnosis for κ interpretation. Conclusions In this study, the sacral base pressure test was not a valid test for determining the presence of sacroiliac joint dysfunction or the type of dysfunction present. Further research comparing the agreement of the sacral base pressure test or other sacroiliac joint dysfunction tests with a criterion standard of diagnosis is necessary. PMID:19674694

Introducing Case-Based Peer-Assisted Learning in a Professional Course

ERIC Educational Resources Information Center

Hodgson, Yvonne; Brack, Charlotte; Benson, Robyn

2014-01-01

This paper describes students' experience of participating in a case-based peer-assisted learning (PAL) program in order to examine whether the approach is pedagogically effective and likely to contribute to students' professional development. It presents the findings of a study which examined the integration of PAL and case-based learning (CBL)…

Understanding Project-Based Learning in Second Life with a Pedagogy, Training, and Assessment Trio

ERIC Educational Resources Information Center

Jarmon, Leslie; Traphagan, Tomoko; Mayrath, Michael

2008-01-01

This paper presents an empirical study of how Second Life (SL) was utilized for a highly successful project-based graduate interdisciplinary communication course. Researchers found that an integrated threefold approach emphasizing project-based pedagogy, technical training and support, and assessment/research was effective in cultivating and…

Organizing Curriculum Change: An Introduction

ERIC Educational Resources Information Center

Westbury, Ian; Aspfors, Jessica; Fries, Anna-Verena; Hansén, Sven-Erik; Ohlhaver, Frank; Rosenmund, Moritz; Sivesind, Kirsten

2016-01-01

This paper introduces the questions and approaches of a five-nation cross-cultural study of state-based curriculum-making discussed in this issue of "JCS." The paper reviews the two decade-long interest of many nations in state-based curriculum-making and presents a framework for thinking about state-based curriculum-making as a tool of…

Using the 4MAT Framework to Design a Problem-Based Learning Biostatistics Course

ERIC Educational Resources Information Center

Nowacki, Amy S.

2011-01-01

The study presents and applies the 4MAT theoretical framework to educational planning to transform a biostatistics course into a problem-based learning experience. Using a four-question approach, described are specific activities/materials utilized at both the class and course levels. Two web-based instruments collected data regarding student…

Student Performance Predictors Involving Numerically Based Subject Matter: Lecture versus Web Presentation

ERIC Educational Resources Information Center

Guidry, Krisandra

2013-01-01

This study examines whether student performance predictors in a numerically based lecture course are similar to those for the web version of the same course. A numerically based course involves quantitative concepts and requires mathematical calculations. Data were collected from students taking a financial management class at a medium sized state…

Language Practice with Multimedia Supported Web-Based Grammar Revision Material

ERIC Educational Resources Information Center

Baturay, Meltem Huri; Daloglu, Aysegul; Yildirim, Soner

2010-01-01

The aim of this study was to investigate the perceptions of elementary-level English language learners towards web-based, multimedia-annotated grammar learning. WEBGRAM, a system designed to provide supplementary web-based grammar revision material, uses audio-visual aids to enrich the contextual presentation of grammar and allows learners to…

Effectiveness of Feedback for Enhancing English Pronunciation in an ASR-Based CALL System

ERIC Educational Resources Information Center

Wang, Y.-H.; Young, S. S.-C.

2015-01-01

This paper presents a study on implementing the ASR-based CALL (computer-assisted language learning based upon automatic speech recognition) system embedded with both formative and summative feedback approaches and using implicit and explicit strategies to enhance adult and young learners' English pronunciation. Two groups of learners including 18…

Enhancing a Computer-Based Testing Environment with Optimum Item Response Time

ERIC Educational Resources Information Center

Delen, Erhan

2015-01-01

As technology has become more advanced and accessible in instructional settings, there has been an upward trend in computer-based testing in the last decades. The present experimental study examines students' behaviors during computer-based testing in two different conditions and explores how these conditions affect the test results. Results…

Moderators of Theory-Based Interventions to Promote Physical Activity in 77 Randomized Controlled Trials

ERIC Educational Resources Information Center

Bernard, Paquito; Carayol, Marion; Gourlan, Mathieu; Boiché, Julie; Romain, Ahmed Jérôme; Bortolon, Catherine; Lareyre, Olivier; Ninot, Gregory

2017-01-01

A meta-analysis of randomized controlled trials (RCTs) has recently showed that theory-based interventions designed to promote physical activity (PA) significantly increased PA behavior. The objective of the present study was to investigate the moderators of the efficacy of these theory-based interventions. Seventy-seven RCTs evaluating…

Enzyme resistant carbohydrate based micro-scale materials from sugar beet (Beta vulgaris L.) pulp for food and pharmaceutical applications

USDA-ARS?s Scientific Manuscript database

Bio-based micro scale materials are increasingly used in functional food and pharmaceutical applications. The present study produced carbohydrate-based micro scale tubular materials from sugar beet (Beta vulgaris L.) pulp (SBP), a by-product of sugar beet processing. The isolated carbohydrates wer...

Graph-based urban scene analysis using symbolic data

NASA Astrophysics Data System (ADS)

Moissinac, Henri; Maitre, Henri; Bloch, Isabelle

1995-07-01

A framework is presented for the interpretation of a urban landscape based on the analysis of aerial pictures. This method has been designed for the use of a priori knowledge provided by a geographic map in order to improve the image analysis stage. A coherent final interpretation of the studied area is proposed. It relies on a graph based data structure to modelize the urban landscape, and on a global uncertainty management to evaluate the final confidence we can have in the results presented. This structure and uncertainty management tend to reflect the hierarchy of the available data and the interpretation levels.

The effect of individually-induced processes on image-based overlay and diffraction-based overlay

NASA Astrophysics Data System (ADS)

Oh, SeungHwa; Lee, Jeongjin; Lee, Seungyoon; Hwang, Chan; Choi, Gilheyun; Kang, Ho-Kyu; Jung, EunSeung

2014-04-01

In this paper, set of wafers with separated processes was prepared and overlay measurement result was compared in two methods; IBO and DBO. Based on the experimental result, theoretical approach of relationship between overlay mark deformation and overlay variation is presented. Moreover, overlay reading simulation was used in verification and prediction of overlay variation due to deformation of overlay mark caused by induced processes. Through this study, understanding of individual process effects on overlay measurement error is given. Additionally, guideline of selecting proper overlay measurement scheme for specific layer is presented.

A comparative study of integrated pest management strategies based on impulsive control.

PubMed

Páez Chávez, Joseph; Jungmann, Dirk; Siegmund, Stefan

2018-12-01

The paper presents a comprehensive numerical study of mathematical models used to describe complex biological systems in the framework of integrated pest management. Our study considers two specific ecosystems that describe the application of control mechanisms based on pesticides and natural enemies, implemented in an impulsive and periodic manner, due to which the considered models belong to the class of impulsive differential equations. The present work proposes a numerical approach to study such type of models in detail, via the application of path-following (continuation) techniques for nonsmooth dynamical systems, via the novel continuation platform COCO (Dankowicz and Schilder). In this way, a detailed study focusing on the influence of selected system parameters on the effectiveness of the pest control scheme is carried out for both ecological scenarios. Furthermore, a comparative study is presented, with special emphasis on the mechanisms upon which a pest outbreak can occur in the considered ecosystems. Our study reveals that such outbreaks are determined by the presence of a branching point found during the continuation analysis. The numerical investigation concludes with an in-depth study of the state-dependent pesticide mortality considered in one of the ecological scenarios.

The Anticipated Positive Psychosocial Impact of Present Web-Based E-Health Services and Future Mobile Health Applications: An Investigation among Older Swedes.

PubMed

Wiklund Axelsson, S; Nyberg, L; Näslund, A; Melander Wikman, A

2013-01-01

This study investigates the anticipated psychosocial impact of present web-based e-health services and future mobile health applications among older Swedes. Random sample's of Swedish citizens aged 55 years old and older were given a survey containing two different e-health scenarios which respondents rated according to their anticipated psychosocial impact by means of the PIADS instrument. Results consistently demonstrated the positive anticipation of psychosocial impacts for both scenarios. The future mobile health applications scored more positively than the present web-based e-health services. An increase in age correlated positively to lower impact scores. These findings indicate that from a psychosocial perspective, web-based e-health services and mobile health applications are likely to positively impact quality of life. This knowledge can be helpful when tailoring and implementing e-health services that are directed to older people.

Treating powerless minorities through an ecosystem approach.

PubMed

Chung, W S; Pardeck, J T

1997-01-01

An ecological approach to social work practice for a minority based on an ecosystem-oriented assessment-intervention model is presented. Strengths and limitations of the ecological perspective for practice are emphasized (in the context of power dynamics). A case study is presented.

Presentation Accuracy of the Web Revisited: Animation Methods in the HTML5 Era

PubMed Central

Garaizar, Pablo; Vadillo, Miguel A.; López-de-Ipiña, Diego

2014-01-01

Using the Web to run behavioural and social experiments quickly and efficiently has become increasingly popular in recent years, but there is some controversy about the suitability of using the Web for these objectives. Several studies have analysed the accuracy and precision of different web technologies in order to determine their limitations. This paper updates the extant evidence about presentation accuracy and precision of the Web and extends the study of the accuracy and precision in the presentation of multimedia stimuli to HTML5-based solutions, which were previously untested. The accuracy and precision in the presentation of visual content in classic web technologies is acceptable for use in online experiments, although some results suggest that these technologies should be used with caution in certain circumstances. Declarative animations based on CSS are the best alternative when animation intervals are above 50 milliseconds. The performance of procedural web technologies based on the HTML5 standard is similar to that of previous web technologies. These technologies are being progressively adopted by the scientific community and have promising futures, which makes their use advisable to utilizing more obsolete technologies. PMID:25302791

Chronology of desert margin in western India using improved luminescence dating protocols

NASA Astrophysics Data System (ADS)

Chauhan, Naveen; Morthekai, P.

2017-12-01

The present study provides improved chronology for the desert margin fluvial sediments of semi-arid region located in the Mahi river basin, western India. The sequence has preserved a near-continuous record of climate change since the Last Interglacial. An earlier attempt of dating based on feldspar IRSL chronology shows a combined effect of anomalous fading and unbleached components resulting in age inversions. The present work tries to explore the possibility of using blue light stimulated luminescence (BLSL) of quartz, infra-red stimulated luminescence (IRSL) of feldspar and the newly developed methodologies, like natural correction factor based single aliquot regeneration (NCF-SAR) protocol and decision making schemes based on distribution of doses and beta heterogeneity concept for luminescence dating of sediments. Observations suggest that quartz suffered from significant sensitivity changes during natural signal measurement and partial bleaching. A combination of NCF-SAR protocol and sample specific equivalent dose computation helped in arriving at better age estimate for present samples. The study also compares the criteria for the selection of different age models that are used at present. The age of the alluvial sequence is now bracketed between 10 ka (upper aeolian unit) and 75 ka (lowermost fluvial unit).

The Impact of Educational Games-Based iPad Applications on the Development of Social Studies Achievement and Learning Retention among Sixth Grade Students in Jeddah

ERIC Educational Resources Information Center

Najmuldeen, Hanan A.

2017-01-01

The present study aims to evaluate the impact of educational games-based iPad applications on the development of social studies achievement and learning retention. Sample consisted of (48) sixth grade primary students in Jeddah. The author adopted Quasi-experimental design of the experimental and control groups. She also provided the teacher a…

The Social Life of a Data Base

NASA Technical Reports Server (NTRS)

Linde, Charlotte; Wales, Roxana; Clancy, Dan (Technical Monitor)

2002-01-01

This paper presents the complex social life of a large data base. The topics include: 1) Social Construction of Mechanisms of Memory; 2) Data Bases: The Invisible Memory Mechanism; 3) The Human in the Machine; 4) Data of the Study: A Large-Scale Problem Reporting Data Base; 5) The PRACA Study; 6) Description of PRACA; 7) PRACA and Paper; 8) Multiple Uses of PRACA; 9) The Work of PRACA; 10) Multiple Forms of Invisibility; 11) Such Systems are Everywhere; and 12) Two Morals to the Story. This paper is in viewgraph form.

Breaking the code: What is the best post-PCI MI definition?

PubMed

Seto, Arnold H; Kern, Morton J

2017-04-01

Various definitions of post-PCI MI have been recommended by different professional societies and studies. This present study suggests that the troponin-based 3rd universal definition of post-PCI MI has prognostic value for recurrent MI but not mortality alone, unlike the CK-MB based SCAI definition. Absent a consensus on the best definition, clinical trials should report outcomes based on multiple definitions of post-PCI MI. © 2017 Wiley Periodicals, Inc.

Defining sustainable practice in community-based health promotion: a Delphi study of practitioner perspectives.

PubMed

Harris, Neil; Sandor, Maria

2013-04-01

Sustainability of practice must be a central imperative in the practice of community-based health promotion to achieve population health and attract a greater share of public health spending. Although there has been some consideration of sustainability at the project or program levels, often understood as intervention longevity, very limited attention has been given to understanding sustainable practice. The present study develops a definition and features of sustainable practice in community-based health promotion through a Delphi method with health promotion practitioners in Queensland, Australia. The study presents a consensus definition and features of sustainable practice. The definition highlights the importance of collaboration, health determinants and aspirations, processes and outcomes. The four features of sustainable practice identified in the study are: (1) effective relationships and partnerships; (2) evidence-based decision making and practice; (3) emphasis on building community capacity; and (4) supportive context for practice. The definition and features are, to a large extent, consistent with the limited literature around sustainability at the project and program levels of health promotion. Together, they provide insight into a form of community-based health promotion that will be both viable and productive. So what? This consensus understanding of sustainable practice articulates the foundations of working effectively with local communities in achieving improved population health within global limits.

A Comparative Study on China-U.S.' APTHS (Academic Proficiency Test for High Schools): Past, Present and Future

ERIC Educational Resources Information Center

Li, Xin; Yan, Wenfan

2012-01-01

This study followed the comparative research mode of description, interpretation, juxtaposition and comparison. Based on the literatures and data collected on the topic, the paper compared and analyzed the past, present and future of APTHS (academic proficiency test for high schools) in the two countries. Some contemplations on the common issues…

Instructing Educators in the Use of Assistive Technology Listening Devices in the Classroom

ERIC Educational Resources Information Center

Alodail, Abdullah K.

2014-01-01

The present study will present Kemp's design in the classroom setting for students with hearing impairments. Based on his model, the researcher will design various instructional methods of how to teach students with hearing aids in the school, focusing on the instruction of English to America K-12 students. The study will also include a list of…

Community attitudes toward rationing ARVs: a qualitative study of justice and equity.

PubMed

Rennie, Stuart

2006-12-01

Medical rationing of anti-retroviral therapies (ARVs) may conflict with the right to health, but rationing is nevertheless a reality in developing countries. In this article, which is based on a poster presentation at the conference, Stuart Rennie presents the preliminary findings of a study on community attitudes towards rationing ARVs in the Democratic Republic of Congo (DRC).

The Clinical Presentation of Mitochondrial Diseases in Children with Progressive Intellectual and Neurological Deterioration: A National, Prospective, Population-Based Study

ERIC Educational Resources Information Center

Verity, Christopher M.; Winstone, Anne Marie; Stellitano, Lesley; Krishnakumar, Deepa; Will, Robert; McFarland, Robert

2010-01-01

Aim: Our aim was to study the clinical presentation, mode of diagnosis, and epidemiology of mitochondrial disorders in children from the UK who have progressive intellectual and neurological deterioration (PIND). Method: Since April 1997, we have identified patients aged 16 years or younger with suspected PIND through the monthly notification card…

Integrating Negative Affect Measures in a Measurement Model: Assessing the Function of Negative Affect as Interference to Self-Regulation

ERIC Educational Resources Information Center

Magno, Carlo

2010-01-01

The present study investigated the composition of negative affect and its function as inhibitory to thought processes such as self-regulation. Negative affect in the present study were composed of anxiety, worry, thought suppression, and fear of negative evaluation. These four factors were selected based on the criteria of negative affect by…

Preparing High School Students for College: An Exploratory Study of College Readiness Partnership Programs in Texas. Executive Summary

ERIC Educational Resources Information Center

Barnett, Elisabeth A.; Corrin, William; Nakanishi, Aki; Bork, Rachel Hare; Mitchell, Claire; Sepanik, Susan

2012-01-01

This paper presents an executive summary of a study that examines a number of college readiness partnership programs operating in Texas and identifies their features, targeted students, and intended outcomes. It also examines the partnerships that created these programs. The findings presented here are based on a search and analysis of the…

Algorithm for fast event parameters estimation on GEM acquired data

NASA Astrophysics Data System (ADS)

Linczuk, Paweł; Krawczyk, Rafał D.; Poźniak, Krzysztof T.; Kasprowicz, Grzegorz; Wojeński, Andrzej; Chernyshova, Maryna; Czarski, Tomasz

2016-09-01

We present study of a software-hardware environment for developing fast computation with high throughput and low latency methods, which can be used as back-end in High Energy Physics (HEP) and other High Performance Computing (HPC) systems, based on high amount of input from electronic sensor based front-end. There is a parallelization possibilities discussion and testing on Intel HPC solutions with consideration of applications with Gas Electron Multiplier (GEM) measurement systems presented in this paper.

Investigating the Conceptual Variation of Major Physics Textbooks

NASA Astrophysics Data System (ADS)

Stewart, John; Campbell, Richard; Clanton, Jessica

2008-04-01

The conceptual problem content of the electricity and magnetism chapters of seven major physics textbooks was investigated. The textbooks presented a total of 1600 conceptual electricity and magnetism problems. The solution to each problem was decomposed into its fundamental reasoning steps. These fundamental steps are, then, used to quantify the distribution of conceptual content among the set of topics common to the texts. The variation of the distribution of conceptual coverage within each text is studied. The variation between the major groupings of the textbooks (conceptual, algebra-based, and calculus-based) is also studied. A measure of the conceptual complexity of the problems in each text is presented.

Experimental studies of characteristic combustion-driven flows for CFD validation

NASA Technical Reports Server (NTRS)

Santoro, R. J.; Moser, M.; Anderson, W.; Pal, S.; Ryan, H.; Merkle, C. L.

1992-01-01

A series of rocket-related studies intended to develop a suitable data base for validation of Computational Fluid Dynamics (CFD) models of characteristic combustion-driven flows was undertaken at the Propulsion Engineering Research Center at Penn State. Included are studies of coaxial and impinging jet injectors as well as chamber wall heat transfer effects. The objective of these studies is to provide fundamental understanding and benchmark quality data for phenomena important to rocket combustion under well-characterized conditions. Diagnostic techniques utilized in these studies emphasize determinations of velocity, temperature, spray and droplet characteristics, and combustion zone distribution. Since laser diagnostic approaches are favored, the development of an optically accessible rocket chamber has been a high priority in the initial phase of the project. During the design phase for this chamber, the advice and input of the CFD modeling community were actively sought through presentations and written surveys. Based on this procedure, a suitable uni-element rocket chamber was fabricated and is presently under preliminary testing. Results of these tests, as well as the survey findings leading to the chamber design, were presented.

Comparative study on the nutritional and antioxidant properties of two Mexican corn (Zea mays) based meals versus processed cereals.

PubMed

Sánchez-Herrera, Marissa; Martínez-Cano, Evelia; Maldonado-Santoyo, María; Aparicio-Fernández, Xochitl

2014-06-01

The present study was conducted to analyze the chemical composition, total phenolics content and antioxidant capacity of two whole corn (Zea mays) based meals traditional from Mexico: "traditional pinole" and "seven grain pinole"; and compare it with information available from ready to eat cereal products based on refined corn and whole grain cereals. Proximate analyses (moisture, ash, fat, protein and fiber) were carried out according to the procedures of AOAC, sugars content was determined by HPLC method; calcium and iron were quantified using atomic absorption spectroscopy. Total phenolic compounds were determined by Folin-Ciocalteu spectrophotometric method; the antiradical capacity was determined by DPPH colorimetric method and total antioxidant capacity was determined by FRAP method. Traditional and seven grain pinole presented higher energy content and nutrient density (protein and fat) than processed cereals. Calcium content was higher in processed cereals than pinole; seven grain pinole presented the highest conentration of iron. Polyphenolic concentration was higher in both kinds of pinole compared to processed cereals; traditional pinole presented the highest antioxidant activity measured by DPPH and FRAP methods. The results provide evidence about the important nutrient and antioxidant content of traditional and seven grain pinole compared to processed cereals based on corn and other grains. It is recommended their incorporation in to regular diet as a healthy food, with a good protein level, low sugar content and good antioxidant capacity.

Organization-based self-development prescriptive model for the promotion of professional development of Iranian clinical nurses.

PubMed

Rahimaghaee, Flora; Nayeri, Nahid Dehghan; Mohammadi, Eesa; Salavati, Shahram

2015-01-01

Professional development is reiterated in the new definition of modern organizations as a serious undertaking of organizations. This article aims to present and describe a prescriptive model to increase the quality of professional development of Iranian nurses within an organization-based framework. This article is an outcome of the results of a study based on grounded theory describing how Iranian nurses develop. The present study adopted purposive sampling and the initial participants were experienced clinical nurses. Then, the study continued by theoretical sampling. The present study involved 21 participants. Data were mainly collected through interviews. Analysis began with open coding and continued with axial coding and selective coding. Trustworthiness was ensured by applying Lincoln and Guba criteria such as credibility, dependability, and conformability. Based on the data gathered in the study and a thorough review of related literature, a prescriptive model has been designed by use of the methodology of Walker and Avant (2005). In this model, the first main component is a three-part structure: Reformation to establish a value-assigning structure, a position for human resource management, and a job redesigning. The second component is certain of opportunities for organization-oriented development. These strategies are as follows: Raising the sensitivity of the organization toward development, goal setting and planning the development of human resources, and improving management practices. Through this model, clinical nurses' professional development can transform the profession from an individual, randomized activity into more planned and systematized services. This model can lead to a better quality of care.

Organization-based self-development prescriptive model for the promotion of professional development of Iranian clinical nurses

PubMed Central

Rahimaghaee, Flora; Nayeri, Nahid Dehghan; Mohammadi, Eesa; Salavati, Shahram

2015-01-01

Background: Professional development is reiterated in the new definition of modern organizations as a serious undertaking of organizations. This article aims to present and describe a prescriptive model to increase the quality of professional development of Iranian nurses within an organization-based framework. Materials and Methods: This article is an outcome of the results of a study based on grounded theory describing how Iranian nurses develop. The present study adopted purposive sampling and the initial participants were experienced clinical nurses. Then, the study continued by theoretical sampling. The present study involved 21 participants. Data were mainly collected through interviews. Analysis began with open coding and continued with axial coding and selective coding. Trustworthiness was ensured by applying Lincoln and Guba criteria such as credibility, dependability, and conformability. Based on the data gathered in the study and a thorough review of related literature, a prescriptive model has been designed by use of the methodology of Walker and Avant (2005). Results: In this model, the first main component is a three-part structure: Reformation to establish a value-assigning structure, a position for human resource management, and a job redesigning. The second component is certain of opportunities for organization-oriented development. These strategies are as follows: Raising the sensitivity of the organization toward development, goal setting and planning the development of human resources, and improving management practices. Conclusions: Through this model, clinical nurses’ professional development can transform the profession from an individual, randomized activity into more planned and systematized services. This model can lead to a better quality of care. PMID:26457100

Energy Policy Act transportation rate study: Availability of data and studies

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

Not Available

1993-10-13

Pursuant to Section 1340(c) of the Energy Policy Act of 1992 (EPACT), this report presents the Secretary of Energy`s review of data collected by the Federal Government on rates for rail and pipeline transportation of domestic coal, oil, and gas for the years 1988 through 1997, and proposals to develop an adequate data base for each of the fuels, based on the data availability review. This report also presents the Energy Information Administration`s findings regarding the extent to which any Federal agency is studying the impacts of the Clean Air Act Amendments of 1990 (CAAA90) and other Federal policies onmore » the transportation rates and distribution patterns of domestic coal, oil, and gas.« less

Ultra Wide-Band Localization and SLAM: A Comparative Study for Mobile Robot Navigation

PubMed Central

Segura, Marcelo J.; Auat Cheein, Fernando A.; Toibero, Juan M.; Mut, Vicente; Carelli, Ricardo

2011-01-01

In this work, a comparative study between an Ultra Wide-Band (UWB) localization system and a Simultaneous Localization and Mapping (SLAM) algorithm is presented. Due to its high bandwidth and short pulses length, UWB potentially allows great accuracy in range measurements based on Time of Arrival (TOA) estimation. SLAM algorithms recursively estimates the map of an environment and the pose (position and orientation) of a mobile robot within that environment. The comparative study presented here involves the performance analysis of implementing in parallel an UWB localization based system and a SLAM algorithm on a mobile robot navigating within an environment. Real time results as well as error analysis are also shown in this work. PMID:22319397

[Chronic pancreatitis. Evidence based management guidelines of the Hungarian Pancreatic Study Group].

PubMed

Takács, Tamás; Czakó, László; Dubravcsik, Zsolt; Farkas, Gyula; Hegyi, Péter; Hritz, István; Kelemen, Dezső; Lásztity, Natália; Morvay, Zita; Oláh, Attila; Pap, Ákos; Párniczky, Andrea; Patai, Árpád; Sahin-Tóth, Miklós; Szentkereszti, Zsolt; Szmola, Richárd; Tiszlavicz, László; Szücs, Ákos

2015-02-15

Chronic pancreatitis is an inflammatory disease associated with structural and functional damage of the pancreas. In most cases pain, maldigestion and weight loss are the leading symptoms, which significantly worsen the quality of life. Correct diagnosis and differential diagnosis of chronic pancreatitis and treatment of these patients requires up-to-date and evidence based treatment guidelines. The Hungarian Pancreatic Study Group proposed to prepare an evidence based guideline based on the available international guidelines and evidence. The preparatory and consultation task force appointed by the Hungarian Pancreatic Study Group translated and complemented and/or modified the international guidelines if it was necessary. 123 relevant clinical questions in 11 topics were defined. Evidence was classified according to the UpToDate® grading system. The draft of the guidelines were presented and discussed at the consensus meeting in September 12, 2014. All clinical questions were accepted with total or strong agreement. The present guideline is the first evidence based guideline for chronic pancreatitis in Hungary. This guideline provides very important and helpful data for tuition, everyday practice and proper financing of chronic pancreatitis. Therefore, the authors believe that these guidelines will widely become a basic reference in Hungary.

[Autoimmune pancreatitis. Evidence based management guidelines of the Hungarian Pancreatic Study Group].

PubMed

Dubravcsik, Zsolt; Farkas, Gyula; Hegyi, Péter; Hritz, István; Kelemen, Dezső; Lásztity, Natália; Morvay, Zita; Oláh, Attila; Pap, Ákos; Párniczky, Andrea; Sahin-Tóth, Miklós; Szentkereszti, Zsolt; Szmola, Richárd; Takács, Tamás; Tiszlavicz, László; Szücs, Ákos; Czakó, László

2015-02-22

Autoimmune pancreatitis is a rare disease which can even mimic pancreatic tumor, however, unlike the latter, it requires not surgical but conservative management. Correct diagnosis and differential diagnosis of autoimmune pancreatitis and treatment of these patients requires up-to-date and evidence based management guidelines. The Hungarian Pancreatic Study Group proposed to prepare an evidence based guideline based on the available international guidelines and evidences. The preparatory and consultation task force appointed by the Hungarian Pancreatic Study Group translated and complemented and/or modified the international guidelines if it was necessary. 29 relevant clinical questions in 4 topics were defined (Basics; Diagnosis; Differential diagnostics; Therapy). Evidence was classified according to the UpToDate(®) grading system. The draft of the guidelines was presented and discussed at the consensus meeting on September 12, 2014. All clinial questions were accepted with almost total (more than 95%) agreement. The present guideline is the first evidence based autoimmune pancreatitis guideline in Hungary. The guideline may provide very important and helpful data for tuition of autoimmune pancreatitis, for everyday practice and for establishing proper finance. Therefore, the authors believe that these guidelines will widely become a basic reference in Hungary.

Effectiveness of Gross Model-Based Emotion Regulation Strategies Training on Anger Reduction in Drug-Dependent Individuals and its Sustainability in Follow-up.

PubMed

Massah, Omid; Sohrabi, Faramarz; A'azami, Yousef; Doostian, Younes; Farhoudian, Ali; Daneshmand, Reza

2016-03-01

Emotion plays an important role in adapting to life changes and stressful events. Difficulty regulating emotions is one of the problems drug abusers often face, and teaching these individuals to express and manage their emotions can be effective on improving their difficult circumstances. The present study aimed to determine the effectiveness of the Gross model-based emotion regulation strategies training on anger reduction in drug-dependent individuals. The present study had a quasi-experimental design wherein pretest-posttest evaluations were applied using a control group. The population under study included addicts attending Marivan's methadone maintenance therapy centers in 2012 - 2013. Convenience sampling was used to select 30 substance-dependent individuals undergoing maintenance treatment who were then randomly assigned to the experiment and control groups. The experiment group received its training in eight two-hour sessions. Data were analyzed using analysis of co-variance and paired t-test. There was significant reduction in anger symptoms of drug-dependent individuals after gross model based emotion regulation training (ERT) (P < 0.001). Moreover, the effectiveness of the training on anger was persistent in the follow-up period. Symptoms of anger in drug-dependent individuals of this study were reduced by gross model-based emotion regulation strategies training. Based on the results of this study, we may conclude that the gross model based emotion regulation strategies training can be applied alongside other therapies to treat drug abusers undergoing rehabilitation.

Graphic Organizers or Graphic Overviews? Presentation Order Effects with Computer-Based Text

ERIC Educational Resources Information Center

Shaw, Shana; Nihalani, Priya; Mayrath, Michael; Robinson, Daniel H.

2012-01-01

It has long been assumed that graphic organizers (GOs) should be presented to students following text as an organizer, rather than preceding text as an overview. Robinson et al. ("Educational Technology Research & Development," 51(4), 25-41, 2003) challenged this assumption by finding support for GOs as an overview. The present study further…

Autonomous Motivation and Pro-Environmental Behaviours among Bedouin Students in Israel: A Self-Determination Theory Perspective

ERIC Educational Resources Information Center

Kaplan, Haya; Madjar, Nir

2015-01-01

Promoting pro-environmental behaviours (PEBs) among students is a major concern for educators. The present article presents an educational program based on a self-determination theory framework (SDT; Deci & Ryan, 2000) and a study demonstrating that working according to the theoretical principles presented in the program leads to the desired…

The Differential Impact of Observational Learning and Practice-Based Learning on the Development of Oral Presentation Skills in Higher Education

ERIC Educational Resources Information Center

De Grez, Luc; Valcke, Martin; Roozen, Irene

2014-01-01

The present study focuses on the design and evaluation of an innovative instructional approach to developing oral presentation skills. The intervention builds on the observational learning theoretical perspective. This perspective is contrasted with the traditional training and practice approach. Two sequencing approaches--learners starting with…

On the application of the partition of unity method for nonlocal response of low-dimensional structures

NASA Astrophysics Data System (ADS)

Natarajan, Sundararajan

2014-12-01

The main objectives of the paper are to (1) present an overview of nonlocal integral elasticity and Aifantis gradient elasticity theory and (2) discuss the application of partition of unity methods to study the response of low-dimensional structures. We present different choices of approximation functions for gradient elasticity, namely Lagrange intepolants, moving least-squares approximants and non-uniform rational B-splines. Next, we employ these approximation functions to study the response of nanobeams based on Euler-Bernoulli and Timoshenko theories as well as to study nanoplates based on first-order shear deformation theory. The response of nanobeams and nanoplates is studied using Eringen's nonlocal elasticity theory. The influence of the nonlocal parameter, the beam and the plate aspect ratio and the boundary conditions on the global response is numerically studied. The influence of a crack on the axial vibration and buckling characteristics of nanobeams is also numerically studied.

Black youth suicide: literature review with a focus on prevention.

PubMed Central

Baker, F. M.

1990-01-01

The national rates of completed suicide in the black population between 1950 and 1981 are presented, including age-adjusted rates. Specific studies of black suicide attempters and completed suicides by blacks in several cities are discussed. Methodological problems with existing studies and national suicide statistics are presented. Proposed theories of black suicide are reviewed. Based on a summary of the characteristics of black suicide attempters reported by the literature, preventive strategies--primary, secondary, and tertiary--are presented. PMID:2204709

Classification of cloud fields based on textural characteristics

NASA Technical Reports Server (NTRS)

Welch, R. M.; Sengupta, S. K.; Chen, D. W.

1987-01-01

The present study reexamines the applicability of texture-based features for automatic cloud classification using very high spatial resolution (57 m) Landsat multispectral scanner digital data. It is concluded that cloud classification can be accomplished using only a single visible channel.

Dendritic cell based vaccines: progress in immunotherapy studies for prostate cancer.

PubMed

Ragde, Haakon; Cavanagh, William A; Tjoa, Benjamin A

2004-12-01

No effective treatment is currently available for metastatic prostate cancer. Dendritic cell (DC) based cancer vaccine research has emerged from the laboratories to human clinical trials. We describe progress in the development of DC based prostate cancer vaccine. The literature was reviewed for major contributions to a growing number of studies that demonstrate the potential of DC based immunotherapeutics for prostate cancer. Background topics relating to DC based immunotherapy theory and practice are also addressed. DCs have been recognized as the most efficient antigen presenting cells that have the capacity to initiate naive T cell response in vitro and in vivo. During their differentiation and maturation pathways, dendritic cells can efficiently capture, process and present antigens for T cell activation. These characteristics make DC an attractive choice as the cellular adjuvant for cancer vaccines. Advances in DC generation, loading, and maturation methodologies have made it possible to generate clinical grade vaccines for various human trials. More than 100 DC vaccine trials, including 7 studies of patients with advanced prostate cancer have been reported to date. These vaccines were generally well tolerated with no significant adverse toxicity reported. Clinical responders have been identified in these studies. The new prospects opened by DC based vaccines for prostate cancer are fascinating. When compared to conventional treatments, DC vaccinations have few side effects. Improvements in patient selection, vaccine delivery strategies, immune monitoring and vaccine manufacturing will be crucial in moving DC based prostate cancer vaccines closer to the clinics.

Black carbon emissions in Russia: A critical review

NASA Astrophysics Data System (ADS)

Evans, Meredydd; Kholod, Nazar; Kuklinski, Teresa; Denysenko, Artur; Smith, Steven J.; Staniszewski, Aaron; Hao, Wei Min; Liu, Liang; Bond, Tami C.

2017-08-01

This study presents a comprehensive review of estimated black carbon (BC) emissions in Russia from a range of studies. Russia has an important role regarding BC emissions given the extent of its territory above the Arctic Circle, where BC emissions have a particularly pronounced effect on the climate. We assess underlying methodologies and data sources for each major emissions source based on their level of detail, accuracy and extent to which they represent current conditions. We then present reference values for each major emissions source. In the case of flaring, the study presents new estimates drawing on data on Russia's associated petroleum gas and the most recent satellite data on flaring. We also present estimates of organic carbon (OC) for each source, either based on the reference studies or from our own calculations. In addition, the study provides uncertainty estimates for each source. Total BC emissions are estimated at 688 Gg in 2014, with an uncertainty range 401 Gg-1453 Gg, while OC emissions are 9224 Gg with uncertainty ranging between 5596 Gg and 14,736 Gg. Wildfires dominated and contributed about 83% of the total BC emissions: however, the effect on radiative forcing is mitigated in part by OC emissions. We also present an adjusted estimate of Arctic forcing from Russia's BC and OC emissions. In recent years, Russia has pursued policies to reduce flaring and limit particulate emissions from on-road transport, both of which appear to significantly contribute to the lower emissions and forcing values found in this study.

Black carbon emissions in Russia: A critical review

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

Evans, Meredydd; Kholod, Nazar; Kuklinski, Teresa

Russia has a particularly important role regarding black carbon (BC) emissions given the extent of its territory above the Arctic Circle, where BC emissions have a particularly pronounced effect on the climate. This study presents a comprehensive review of BC estimates from a range of studies. We assess underlying methodologies and data sources for each major emissions source based on their level of detail, accuracy and extent to which they represent current conditions. We then present reference values for each major emissions source. In the case of flaring, the study presents new estimates drawing on data on Russian associated petroleummore » gas and the most recent satellite data on flaring. We also present estimates of organic carbon (OC) for each source, either based on the reference studies or from our own calculations. In addition, the study provides uncertainty estimates for each source. Total BC emissions are estimated at 689 Gg in 2014, with an uncertainty range between (407-1,416), while OC emissions are 9,228 Gg (with uncertainty between 5,595 and 14,728). Wildfires dominated and contributed about 83% of the total BC emissions, however the effect on radiative forcing is mitigated by OC emissions. We also present an adjusted estimate of Arctic forcing from Russian OC and BC emissions. In recent years, Russia has pursued policies to reduce flaring and limit particulate emissions from on-road transport, both of which appear to significantly contribute to the lower emissions and forcing values found in this study.« less

A Trade Study of Two Membrane-Aerated Biological Water Processors

NASA Technical Reports Server (NTRS)

Allada, Ram; Lange, Kevin; Vega. Leticia; Roberts, Michael S.; Jackson, Andrew; Anderson, Molly; Pickering, Karen

2011-01-01

Biologically based systems are under evaluation as primary water processors for next generation life support systems due to their low power requirements and their inherent regenerative nature. This paper will summarize the results of two recent studies involving membrane aerated biological water processors and present results of a trade study comparing the two systems with regards to waste stream composition, nutrient loading and system design. Results of optimal configurations will be presented.

A review of the curriculum development process of simulation-based educational intervention studies in Korea.

PubMed

Lee, Ju-Young; Lee, Soon Hee; Kim, Jung-Hee

2018-05-01

Despite the increase in simulators at nursing schools and the high expectations regarding simulation for nursing education, the unique features of integrating simulation-based education into the curriculum are unclear. The purpose of this study was to assess the curriculum development process of simulation-based educational interventions in nursing in Korea. Integrative review of literature used. Korean Studies Information Services System (KISS), Korean Medical Database (KMbase), KoreaMed, Research Information Sharing Service (RISS), and National Digital Library (NDL). Comprehensive databases were searched for records without a time limit (until December 2016), using terms such as "nursing," "simulation," and "education." A total of 1006 studies were screened. According to the model for simulation-based curriculum development (Khamis et al., 2016), the quality of reporting on the curriculum development was reviewed. A total of 125 papers were included in this review. In three studies, simulation scenarios were made from easy to difficulty levels, and none of the studies presented the level of learners' proficiency. Only 17.6% of the studies reported faculty development or preparation. The inter-rater reliability was presented in performance test by 24 studies and two studies evaluated the long-term effects of simulation education although there was no statistically significant change in terms of publication years. These findings suggest that educators and researchers should pay more attention to the educational strategies to integrate simulation into nursing education. It could contribute to guiding educators and researchers to develop a simulation-based curriculum and improve the quality of nursing education research. Copyright © 2018 Elsevier Ltd. All rights reserved.

Equipment for the Production of Wood-Polymeric Thermal Insulation Materials

NASA Astrophysics Data System (ADS)

Saldaev, Vladimir A.; Prosvirnikov, Dmitry B.; Stepanov, Vladislav V.; Sadrtdinov, Almaz R.; Kapustin, Alexey N.

2016-08-01

This article presents developed pilot-plant equipment for slabby patterns of wood- filled polyurethane foam insulation material and its specifications are presented. Based on the results of experimental studies of pilot models the allowable range of equipment's technological parameters was defined.

"For Some Reason, I'm Just Tired": Women Domestic Workers Persisting in Community-Based Programmes

ERIC Educational Resources Information Center

Cuban, Sondra

2007-01-01

A study of women migrant domestic workers in the USA and their reasons for participating and persisting in community-based literacy and ESOL programmes is presented. Case studies and themes were developed about the women's experiences of work life and how it connected to their programme participation. The findings revealed that the women had…

An Investigation of the Potential for a Computer-based Tutorial Program Covering the Cardiovascular System to Replace Traditional Lectures.

ERIC Educational Resources Information Center

Dewhurst, D. G.; Williams, A. D.

1998-01-01

Presents the results of a comparative study to evaluate the effectiveness of two interactive computer-based learning (CBL) programs, covering the cardiovascular system, as an alternative to lectures for first year undergraduate students at a United Kingdom University. Discusses results in relation to the design of evaluative studies and the future…

Teaching Grammar through Task-Based Language Teaching to Young EFL Learners

ERIC Educational Resources Information Center

Yildiz, Mustafa; Senel, Mufit

2017-01-01

The present study investigates the effects of Task-Based Language Teaching on students' grammar knowledge in the field of teaching grammar. It has been studied with 32 students from 8th grade during a two-and-a-half-month process. Throughout this process, students firstly are applied a pre-test to examine their level and to confirm whether there…

Art Instructor's Attitude towards the Art Curriculum for Undergraduate Degree in Tehran Universities

ERIC Educational Resources Information Center

Hedayat, Mina; Goodarzi, Mostafa; Kahn, Sabzali Musa; bin Ramli, Sharulnizam

2013-01-01

The present research aims to investigate lecturer's feedback over the art curriculum in Tehran, the capital of Iran, and introduce the applicability of Discipline-Based Art Education (DBAE), as a new way of teaching art, and its implication of art instruction in studio-based fields of study for undergraduate degree. This study is carried out based…

Hong Kong Grade 6 Students' Performance and Mathematical Reasoning in Decimals Tasks: Procedurally Based or Conceptually Based?

ERIC Educational Resources Information Center

Lai, Mun Yee; Murray, Sara

2015-01-01

Most studies of students' understanding of decimals have been conducted within Western cultural settings. The broad aim of the present research was to gain insight into Chinese Hong Kong grade 6 students' general performance on a variety of decimals tasks. More specifically, the study aimed to explore students' mathematical reasoning for their use…

(Re)Designing Writing in English Class: A Multimodal Approach to Teaching Writing

ERIC Educational Resources Information Center

Rowsell, Jennifer; Decoste, Eryn

2012-01-01

Based on a 2-year ethnographic study in an urban secondary school in Toronto, the article presents how a teacher and a researcher teach Grade 11 students through a design-based approach to teaching and learning in English class. Built on research and pedagogy on design, the authors designed a programme of study as an alternative to more…

How clustering dynamics influence lumber utilization patterns in the Amish-based furniture industry in Ohio

Treesearch

Matthew S. Bumgardner; Gary W. Graham; P. Charles Goebel; Robert L. Romig

2011-01-01

Preliminary studies have suggested that the Amish-based furniture and related products manufacturing cluster located in and around Holmes County, Ohio, uses sizeable quantities of hardwood lumber. The number of firms within the cluster has grown even as the broader domestic furniture manufacturing sector has contracted. The present study was undertaken in 2008 (spring/...

The Effects of Using Jigsaw Method Based on Cooperative Learning Model in the Undergraduate Science Laboratory Practices

ERIC Educational Resources Information Center

Karacop, Ataman

2017-01-01

The main aim of the present study is to determine the influence of a Jigsaw method based on cooperative learning and a confirmatory laboratory method on prospective science teachers' achievements of physics in science teaching laboratory practice courses. The sample of this study consisted of 33 female and 15 male third-grade prospective science…

Born for a Noble Cause?--A Case Study on Fanconi Anemia

ERIC Educational Resources Information Center

Elwess, Nancy L.; Butterfield, Savanna R.; Charles, Amanda; DeVeaugh, Maxine C.; Lu, Gloria J.; Shafqat, Hira; Watts, Andrew

2005-01-01

The fictional case study presented here is not based on one case, but is actually based on several cases. College students enrolled in a bioethics course for non-majors wrote it. The case entails the thought processes and decision-making involved in order to save one child suffering from a genetic disorder by producing another child, a "designer…

A University's Strategic Adoption Process of an PBL-Aligned eLearning Environment: An Exploratory Case Study

ERIC Educational Resources Information Center

Blackburn, Greg

2017-01-01

Much has been written about the promise and peril of technology in education. This paper presents an empirical study that explores how technology can play a pivotal role in student learning and how teaching staff can adopt innovative technology-based approaches in the creation of interactive online problem-based learning (PBL) resources, allowing…

Further Evidence for the Efficacy of an Evidence-Based, Small Group, Literacy Intervention Program for Young Struggling Readers

ERIC Educational Resources Information Center

Wheldall, Kevin; Wheldall, Robyn; Madelaine, Alison; Reynolds, Meree; Arakelian, Sarah

2017-01-01

An earlier series of pilot studies and small-scale experimental studies had previously provided some evidence for the efficacy of a small group early literacy intervention program for young struggling readers. The present paper provides further evidence for efficacy based on a much larger sample of young, socially disadvantaged, at-risk readers.…

Journey to Healthy Aging: Impact of Community Based Education Programs on Knowledge and Health Behavior in Older Adults

ERIC Educational Resources Information Center

McLarry, Sue

2007-01-01

The objective of this study was to determine if community based health education programs increased knowledge and health behavior in older adults. The study was a pretest-posttest design with a convenience sample of 111 independent community dwelling older adults. Participants received two disease prevention education presentations: type 2…

Pre-Service Teachers' Perspectives on Using Scenario-Based Virtual Worlds in Science Education

ERIC Educational Resources Information Center

Kennedy-Clark, Shannon

2011-01-01

This paper presents the findings of a study on the current knowledge and attitudes of pre-service teachers on the use of scenario-based multi-user virtual environments in science education. The 28 participants involved in the study were introduced to "Virtual Singapura," a multi-user virtual environment, and completed an open-ended questionnaire.…

The Effects of Integrating Computer-Based Concept Mapping for Physics Learning in Junior High School

ERIC Educational Resources Information Center

Chang, Cheng-Chieh; Yeh, Ting-Kuang; Shih, Chang-Ming

2016-01-01

It generally is accepted that concept mapping has a noticeable impact on learning. But literatures show the use of concept mapping is not benefit all learners. The present study explored the effects of incorporating computer-based concept mapping in physics instruction. A total of 61 9th-grade students participated in this study. By using a…

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…

Case Studies in Systems Chemistry. Final Report. [Includes Complete Case Study, Carboxylic Acid Equilibria

ERIC Educational Resources Information Center

Fleck, George

This publication was produced as a teaching tool for college chemistry. The book is a text for a computer-based unit on the chemistry of acid-base titrations, and is designed for use with FORTRAN or BASIC computer systems, and with a programmable electronic calculator, in a variety of educational settings. The text attempts to present computer…

Deontic Modals in RP-US Visiting Forces Agreement (VFA): A Corpus-Based Analysis

ERIC Educational Resources Information Center

Dela Rosa, John Paul Obillos

2017-01-01

The marriage between language and the law is apparent in any legal document of whatever purpose. Hence, at present, studies on the language of the law are definitely in vogue. Grounded on Quirk et al. (1985) and Matulewska's (2010) description of deontic modality, this corpus-based linguistic study aimed at analyzing the use of deontic modals in…

The Development of Maritime English Learning Model Using Authentic Assessment Based Bridge Simulator in Merchant Marine Polytechnic, Makassar

ERIC Educational Resources Information Center

Fauzi, Ahmad; Bundu, Patta; Tahmir, Suradi

2016-01-01

Bridge simulator constitutes a very fundamental and vital tool to trigger and ensure that seamen or seafarers possess the standardized competence required. By using the bridge simulator technique, a reality based study can be presented easily and delivered to the students in ongoing basis to their classroom or study place. Afterwards, the validity…

A Comparative Study of Paper-Based and Computer-Based Contextualization in Vocabulary Learning of EFL Students

ERIC Educational Resources Information Center

Ahmadian, Mousa; Amerian, Majid; Goodarzi, Ahmad

2015-01-01

Vocabulary acquisition is one of the largest and most important tasks in language classes. New technologies, such as computers, have helped a lot in this way. The importance of the issue led the researchers to do the present study which concerns the comparison of contextualized vocabulary learning on paper and through Computer Assisted Language…

Improving Readability in an Explicit Genre-Based Approach: The Case of an EFL Workplace Context

ERIC Educational Resources Information Center

Albino, Gabriel

2017-01-01

The present study investigates how learners of English as a foreign language (EFL) improve the readability of their texts in an explicit genre-based approach that is utilized in an oil and gas exploration workplace in Angola. By drawing on the English for Specific Purposes and Systemic Functional Linguistics genre traditions, the study engages 18…

The Effect of Scratch-Based Game Activities on Students' Attitudes, Self-Efficacy and Academic Achievement

ERIC Educational Resources Information Center

Korkmaz, Özgen

2016-01-01

The purpose of the present research is to designate the effects of Scratch-based game activities on students' attitudes towards learning computer programming, self-efficacy beliefs and levels of academic achievement. The research was conducted through a pre-test-post-test control group quasi-experimental study. The study group consists of 49…

Pupils' Views on an ICT-Based Learning Environment in Health Learning

ERIC Educational Resources Information Center

Räihä, Teija; Tossavainen, Kerttu; Enkenberg, Jorma; Turunen, Hannele

2014-01-01

This paper presents a study that examined pupils' views on an ICT-based learning environment in health learning. The study was a part of the wider European Network of Health Promoting Schools programme (ENHPS; since 2008, Schools for Health in Europe, SHE) in Finland, and particularly its sub-project, From Puijo to the World with Health Lunch,…

Factor Structure of Character Strengths in Youth: Consistency across Ages and Measures

ERIC Educational Resources Information Center

McGrath, Robert E.; Walker, David Ian

2016-01-01

The VIA Classification of Strengths and Virtues attempts to provide a comprehensive model of character based on 24 character strengths. The present study is the largest study to date exploring the structure of the 24 strengths in youth. One sample (N = 23,850) completed the VIA-Youth, a teen measure of the VIA Classification. Based on a random…

Evaluating the Effects of Input-Based Approaches to the Teaching of Pragmalinguistics and Sociopragmatics in Second Language Pragmatics: A Case of English Request Hedges

ERIC Educational Resources Information Center

Takimoto, Masahiro

2014-01-01

The present study examined the effects of two types of input-based approaches--combination of pragmalinguistics- and sociopragmatics-focused instruction (CI) and sociopragmatics-focused instruction (SI) on learners' recognizing and producing English request hedges. 45 Japanese learners of English participated in the study. Treatment group…

The Impact of Activity-Based Oral Expression Course on Speech Self-Efficacy of Students

ERIC Educational Resources Information Center

Altunkaya, Hatice

2018-01-01

The objective of the present study was to examine the effect of the activity-based oral expression course on the speech self-efficacy of psychological counseling and guidance students. The study group included 80 freshmen students in the Psychological Counseling and Guidance Department in the Faculty of Education of a university located in western…

Phonological and Executive Working Memory in L2 Task-Based Speech Planning and Performance

ERIC Educational Resources Information Center

Wen, Zhisheng

2016-01-01

The present study sets out to explore the distinctive roles played by two working memory (WM) components in various aspects of L2 task-based speech planning and performance. A group of 40 post-intermediate proficiency level Chinese EFL learners took part in the empirical study. Following the tenets and basic principles of the…

A Study of the Effects of Competitive Team-Based Learning and Structured Academic Controversy on the Language Proficiency of Iranian EFL College Seniors

ERIC Educational Resources Information Center

Hosseini, Seyed Mohammad Hassan

2012-01-01

This paper presents reports on an experimental study which intended to look into and compare the possible effects of this researcher's instructional innovation, Competitive Team-Based Learning (CTBL), with Structured Academic Controversy (SAC) -- the most popular method of Cooperative Learning (CL) -- on language proficiency of Iranian EFL college…

Piloting a Dispersed and Inter-Professional Lesson Study Using Technology to Link Team Members at a Distance

ERIC Educational Resources Information Center

Koutsouris, George; Norwich, Brahm; Fujita, Taro; Ralph, Thomas; Adlam, Anna; Milton, Fraser

2017-01-01

This article presents an evaluation of distance technology used in a novel Lesson Study (LS) approach involving a dispersed LS team for inter-professional purposes. A typical LS model with only school teachers as team members was modified by including university-based lecturers with the school-based teachers, using video-conferencing and online…

The Effectiveness of Project-Based Learning on Pupils with Learning Difficulties Regarding Academic Performance, Group Work and Motivation

ERIC Educational Resources Information Center

Filippatou, Diamanto; Kaldi, Stavroula

2010-01-01

This study focuses upon the effectiveness of project-based learning on primary school pupils with learning difficulties regarding their academic performance and attitudes towards self efficacy, task value, group work and teaching methods applied. The present study is a part of a larger one that included six Greek fourth-grade primary school…

A simulations approach for meta-analysis of genetic association studies based on additive genetic model.

PubMed

John, Majnu; Lencz, Todd; Malhotra, Anil K; Correll, Christoph U; Zhang, Jian-Ping

2018-06-01

Meta-analysis of genetic association studies is being increasingly used to assess phenotypic differences between genotype groups. When the underlying genetic model is assumed to be dominant or recessive, assessing the phenotype differences based on summary statistics, reported for individual studies in a meta-analysis, is a valid strategy. However, when the genetic model is additive, a similar strategy based on summary statistics will lead to biased results. This fact about the additive model is one of the things that we establish in this paper, using simulations. The main goal of this paper is to present an alternate strategy for the additive model based on simulating data for the individual studies. We show that the alternate strategy is far superior to the strategy based on summary statistics.

An Evaluation of a Peer-Based HIV/AIDS Education Program as Implemented in a Suburban High School Setting

ERIC Educational Resources Information Center

Cole, Brian P.; Nelson, Timothy D.; Steele, Ric G.

2008-01-01

This study presents the results of an evaluation of a peer-based HIV/AIDS education program, the BASE program, as implemented in a suburban high school setting. The participants were 132 high school students who participated in an "AIDS Awareness Day" as a part of the BASE program in their high school. Each student completed preintervention and…

Standard of reporting animal-based experimental research in Indian Journal of Pharmacology.

PubMed

Aiman, Umme; Rahman, Syed Ziaur

2015-01-01

The objective of present study was to survey and determine the reporting standards of animal studies published during three years from 2012 to 2014 in the Indian Journal of Pharmacology (IJP). All issues of IJP published in the year 2012, 2013 and 2014 were reviewed to identify animal studies. Each animal study was searched for 15 parameters specifically designed to review standards of animal experimentation and research methodology. All published studies had clearly defined aims and objectives while a statement on ethical clearance about the study protocol was provided in 97% of papers. Information about animal strain and sex was given in 91.8% and 90% of papers respectively. Age of experimental animals was mentioned by 44.4% papers while source of animals was given in 50.8% papers. Randomization was reported by 37.4% while 9.9% studies reported blinding. Only 3.5% studies mentioned any limitations of their work. Present study demonstrates relatively good reporting standards in animal studies published in IJP. The items which need to be improved are randomization, blinding, sample size calculation, stating the limitations of study, sources of support and conflict of interest. The knowledge shared in the present paper could be used for better reporting of animal based experiments.

Validation of an image-based technique to assess the perceptual quality of clinical chest radiographs with an observer study

NASA Astrophysics Data System (ADS)

Lin, Yuan; Choudhury, Kingshuk R.; McAdams, H. Page; Foos, David H.; Samei, Ehsan

2014-03-01

We previously proposed a novel image-based quality assessment technique1 to assess the perceptual quality of clinical chest radiographs. In this paper, an observer study was designed and conducted to systematically validate this technique. Ten metrics were involved in the observer study, i.e., lung grey level, lung detail, lung noise, riblung contrast, rib sharpness, mediastinum detail, mediastinum noise, mediastinum alignment, subdiaphragm-lung contrast, and subdiaphragm area. For each metric, three tasks were successively presented to the observers. In each task, six ROI images were randomly presented in a row and observers were asked to rank the images only based on a designated quality and disregard the other qualities. A range slider on the top of the images was used for observers to indicate the acceptable range based on the corresponding perceptual attribute. Five boardcertificated radiologists from Duke participated in this observer study on a DICOM calibrated diagnostic display workstation and under low ambient lighting conditions. The observer data were analyzed in terms of the correlations between the observer ranking orders and the algorithmic ranking orders. Based on the collected acceptable ranges, quality consistency ranges were statistically derived. The observer study showed that, for each metric, the averaged ranking orders of the participated observers were strongly correlated with the algorithmic orders. For the lung grey level, the observer ranking orders completely accorded with the algorithmic ranking orders. The quality consistency ranges derived from this observer study were close to these derived from our previous study. The observer study indicates that the proposed image-based quality assessment technique provides a robust reflection of the perceptual image quality of the clinical chest radiographs. The derived quality consistency ranges can be used to automatically predict the acceptability of a clinical chest radiograph.

Parental Attachment Style: Examination of Links with Parent Secure Base Provision and Adolescent Secure Base Use

PubMed Central

Jones, Jason D.; Cassidy, Jude

2014-01-01

The secure base construct is a core aspect of attachment theory and, according to Bowlby (1988), 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 (Mage = 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. PMID:24897927

Satellite Power Systems (SPS) concept definition study, exhibit C. Volume 2, part 1: System engineering

NASA Technical Reports Server (NTRS)

Hanley, G. M.

1979-01-01

Volume 2, Part 1, of a seven volume report is presented. Part 1 encompasses Satellite Power Systems (SPS) systems engineering aspects and is divided into three sections. The first section presents descriptions of the various candidate concepts considered and conclusions and recommendations for a preferred concept. The second section presents a summary of results of the various trade studies and analysis conducted during the course of the study. The third section describes the Photovoltaic Satellite Based Satellite Power System (SPS) Point Design as it was defined through studies performed during the period January 1977 through March 1979.

Content and structure of knowledge base used for virtual control of android arm motion in specified environment

NASA Astrophysics Data System (ADS)

Pritykin, F. N.; Nebritov, V. I.

2018-01-01

The paper presents the configuration of knowledge base necessary for intelligent control of android arm mechanism motion with different positions of certain forbidden regions taken into account. The present structure of the knowledge base characterizes the past experience of arm motion synthesis in the vector of velocities with due regard for the known obstacles. This structure also specifies its intrinsic properties. Knowledge base generation is based on the study of the arm mechanism instantaneous states implementations. Computational experiments connected with the virtual control of android arm motion with known forbidden regions using the developed knowledge base are introduced. Using the developed knowledge base to control virtually the arm motion reduces the time of test assignments calculation. The results of the research can be used in developing control systems of autonomous android robots in the known in advance environment.

Further study on Physaloptera clausa Rudolphi, 1819 (Spirurida: Physalopteridae) from the Amur hedgehog Erinaceus amurensis Schrenk (Eulipotyphla: Erinaceidae).

PubMed

Chen, Hui-Xia; Ju, Hui-Dong; Li, Yang; Li, Liang

2017-12-20

In the present study, light and scanning electron microscopy (SEM) were used to further study the detailed morphology of Physaloptera clausa Rudolphi, 1819, based on the material collected from the Amur hedgehog E. amurensis Schrenk in China. The results revealed a few previously unreported morphological features and some morphological and morphometric variability between our specimens and the previous studies. The present supplementary morphological characters and morphometric data could help us to recognize this species more accurately.

Studying the complex spectral line profiles in the spectra of hot emission stars and quasars .

NASA Astrophysics Data System (ADS)

Danezis, E.; Lyratzi, E.; Antoniou, A.; Popović, L. Č.; Dimitrijević, M. S.

Some Hot Emission Stars and AGNs present peculiar spectral line profiles which are due to DACs and SACs phenomena. The origin and the mechanisms which are responsible for the creation of DACs/SACs is an important problem that has been studied by many researchers. This paper is a review of our efforts to study the origin and the mechanisms of these phenomena. At first we present a theoretic ad hoc picture for the structure of the plasma that surrounds the specific category of hot emission stars that present DACs or SACs. Then we present the mathematical model that we constructed, which is based on the properties of the above ad hoc theoretical structure. Finally, we present some results from our statistical studies that prove the consistency of our model with the classical physical theory.

Using tablet-based technology in patient education about systemic therapy options for early-stage breast cancer: a pilot study.

PubMed

Morgan, E R; Laing, K; McCarthy, J; McCrate, F; Seal, M D

2015-10-01

Patient education in early-stage breast cancer has been shown to improve patient well-being and quality of life, but it poses a challenge given the increasingly complex regimens and time constraints in clinical practice. Technology-aided teaching in the clinic could help to improve the understanding of adjuvant systemic therapy for patients. In this prospective pilot study, we used a clinician-administered, tablet-based teaching aid to teach patients with early-stage breast cancer about adjuvant systemic therapy. Participation was offered to newly diagnosed patients with early-stage breast cancer presenting for their first medical oncology visit at a provincial cancer centre. Participants were shown a tablet-based presentation describing procedures, rationales, risks, and benefits of adjuvant systemic therapy as an adjunct to a discussion with the medical oncologist. After the clinic visit, participants completed a questionnaire measuring satisfaction with the visit and knowledge of the treatment plan discussed. The 25 patients recruited for the study had a mean age of 57 years. An offer of upfront chemotherapy alone was made to 12 participants (48%), chemotherapy with trastuzumab to 4 (16%), and hormonal therapy to 9 (36%). Correct answers to all questions related to treatment knowledge were given by 22 patients (88%). Satisfaction with the clinic visit was high (mean satisfaction score: 4.53 ± 0.1 of a possible 5). We found that a tablet-based presentation about adjuvant systemic therapy was satisfactory to patients with early-stage breast cancer and that knowledge retention after the clinic visit was high. Tablet-based teaching could be a feasible and effective way of educating patients in the breast oncology clinic and warrants further investigation in randomized studies.

Effects of alternative outcome scenarios and structured outcome evaluation on case-based ethics instruction.

PubMed

Peacock, Juandre; Harkrider, Lauren N; Bagdasarov, Zhanna; Connelly, Shane; Johnson, James F; Thiel, Chase E; Macdougall, Alexandra E; Mumford, Michael D; Devenport, Lynn D

2013-09-01

Case-based instruction has been regarded by many as a viable alternative to traditional lecture-based education and training. However, little is known about how case-based training techniques impact training effectiveness. This study examined the effects of two such techniques: (a) presentation of alternative outcome scenarios to a case, and (b) conducting a structured outcome evaluation. Consistent with the hypotheses, results indicate that presentation of alternative outcome scenarios reduced knowledge acquisition, reduced sensemaking and ethical decision-making strategy use, and reduced decision ethicality. Conducting a structured outcome evaluation had no impact on these outcomes. Results indicate that those who use case-based instruction should take care to use clear, less complex cases with only a singular outcome if they are seeking these types of outcomes.

Participant dropout as a function of survey length in internet-mediated university studies: implications for study design and voluntary participation in psychological research.

PubMed

Hoerger, Michael

2010-12-01

Internet-mediated research has offered substantial advantages over traditional laboratory-based research in terms of efficiently and affordably allowing for the recruitment of large samples of participants for psychology studies. Core technical, ethical, and methodological issues have been addressed in recent years, but the important issue of participant dropout has received surprisingly little attention. Specifically, web-based psychology studies often involve undergraduates completing lengthy and time-consuming batteries of online personality questionnaires, but no known published studies to date have closely examined the natural course of participant dropout during attempted completion of these studies. The present investigation examined participant dropout among 1,963 undergraduates completing one of six web-based survey studies relatively representative of those conducted in university settings. Results indicated that 10% of participants could be expected to drop out of these studies nearly instantaneously, with an additional 2% dropping out per 100 survey items included in the study. For individual project investigators, these findings hold ramifications for study design considerations, such as conducting a priori power analyses. The present results also have broader ethical implications for understanding and improving voluntary participation in research involving human subjects. Nonetheless, the generalizability of these conclusions may be limited to studies involving similar design or survey content.

The central role of chloride in the metabolic acid-base changes in canine parvoviral enteritis.

PubMed

Burchell, Richard K; Schoeman, Johan P; Leisewitz, Andrew L

2014-04-01

The acid-base disturbances in canine parvoviral (CPV) enteritis are not well described. In addition, the mechanisms causing these perturbations have not been fully elucidated. The purpose of the present study was to assess acid-base changes in puppies suffering from CPV enteritis, using a modified strong ion model (SIM). The hypothesis of the study was that severe acid-base disturbances would be present and that the SIM would provide insights into pathological mechanisms, which have not been fully appreciated by the Henderson-Hasselbalch model. The study analysed retrospective data, obtained from 42 puppies with confirmed CPV enteritis and 10 healthy control dogs. The CPV-enteritis group had been allocated a clinical score, to allow classification of the data according to clinical severity. The effects of changes in free water, chloride, l-lactate, albumin and phosphate were calculated, using a modification of the base excess algorithm. When the data were summated for each patient, and correlated to each individual component, the most important contributor to the metabolic acid-base changes, according to the SIM, was chloride (P<0.001). Severely-affected animals tended to demonstrate hypochloraemic alkalosis, whereas mildly-affected puppies had a hyperchloraemic acidosis (P=0.007). In conclusion, the acid-base disturbances in CPV enteritis are multifactorial and complex, with the SIM providing information in terms of the origin of these changes. Copyright © 2014 Elsevier Ltd. All rights reserved.

The Effect of Lego Mindstorms Ev3 Based Design Activities on Students' Attitudes towards Learning Computer Programming, Self-Efficacy Beliefs and Levels of Academic Achievement

ERIC Educational Resources Information Center

Korkmaz, Özgen

2016-01-01

The aim of the study was to present the effect of Lego Mindstorms Ev3 based design activities on students' attitudes towards learning computer programming, self-efficacy beliefs and levels of academic achievement. The research is a pretest-posttest with control group semi-experimental study. The study group of the research consisted of 53 students…

Identifying Effective Methods of Instruction for Adult Emergent Readers through Community-Based Research

ERIC Educational Resources Information Center

Blackmer, Rachel; Hayes-Harb, Rachel

2016-01-01

We present a community-based research project aimed at identifying effective methods and materials for teaching English literacy skills to adult English as a second language emergent readers. We conducted a quasi-experimental study whereby we evaluated the efficacy of two approaches, one based on current practices at the English Skills Learning…

The Effects of Computer-Supported Inquiry-Based Learning Methods and Peer Interaction on Learning Stellar Parallax

ERIC Educational Resources Information Center

Ruzhitskaya, Lanika

2011-01-01

The presented research study investigated the effects of computer-supported inquiry-based learning and peer interaction methods on effectiveness of learning a scientific concept. The stellar parallax concept was selected as a basic, and yet important in astronomy, scientific construct, which is based on a straightforward relationship of several…

Development of Speaking Skills through Activity Based Learning at the Elementary Level

ERIC Educational Resources Information Center

Ul-Haq, Zahoor; Khurram, Bushra Ahmed; Bangash, Arshad Khan

2017-01-01

Purpose: This paper discusses an effective instructional method called "activity based learning" that can be used to develop the speaking skills of students in the elementary school level. The present study was conducted to determine the effect of activity based learning on the development of the speaking skills of low and high achievers…

Professional Development on an International Scale: Council of Europe--Pestalozzi Programme Virtual Community of Practice

ERIC Educational Resources Information Center

Mompoint Gaillard, Pascale; Rajic, Višnja

2014-01-01

Communities of practice as organisations of learning have developed different forms as: task-based, practice-based or knowledge based communities (Barab et al., 2004). The paper presents a case study of a successful community of practice developed under the umbrella of Council of Europe Pestalozzi programme for teacher development. The programme…

The Impact of Competency-Based Teacher Education and Certification Programs in Utah.

ERIC Educational Resources Information Center

Mouritsen, Roger C.

Utah is a member of a nine-state consortium to study competency-based teacher education and certification programs. This paper presents an overview of the nationwide movement for competency-based teacher education, followed by a description of the situation in Utah. The State Board of Education is making an effort through the Teacher Education and…

A Comparison of Three Strategies for Scale Construction to Predict a Specific Behavioral Outcome

ERIC Educational Resources Information Center

Garb, Howard N.; Wood, James M.; Fiedler, Edna R.

2011-01-01

Using 65 items from a mental health screening questionnaire, the History Opinion Inventory-Revised (HOI-R), the present study compared three strategies of scale construction--(1) internal (based on factor analysis), (2) external (based on empirical performance) and (3) intuitive (based on clinicians' opinion)--to predict whether 203,595 U.S. Air…

Enhancing Competence and Autonomy in Computer-Based Instruction Using a Skill-Challenge Balancing Strategy

ERIC Educational Resources Information Center

Kim, Jieun; Ryu, Hokyoung; Katuk, Norliza; Wang, Ruili; Choi, Gyunghyun

2014-01-01

The present study aims to show if a skill-challenge balancing (SCB) instruction strategy can assist learners to motivationally engage in computer-based learning. Csikszentmihalyi's flow theory (self-control, curiosity, focus of attention, and intrinsic interest) was applied to an account of the optimal learning experience in SCB-based learning…

Interacting with Visual Poems through AR-Based Digital Artwork

ERIC Educational Resources Information Center

Lin, Hao-Chiang Koong; Hsieh, Min-Chai; Liu, Eric Zhi-Feng; Chuang, Tsung-Yen

2012-01-01

In this study, an AR-based digital artwork called "Mind Log" was designed and evaluated. The augmented reality technique was employed to create digital artwork that would present interactive poems. A digital poem was generated via the interplay between a video film and a text-based poem. This artwork was created following a rigorous design flow,…

Do Undergraduate Paramedic Students Embrace Case Based Learning Using a Blended Teaching Approach? A 3-Year Review

ERIC Educational Resources Information Center

Williams, Brett

2009-01-01

This paper presents the results of a descriptive longitudinal study which aimed to identify student paramedic perceptions of case based learning used in the clinical curriculum of the Bachelor of Emergency Health (BEH) degree at Monash University, Victoria, Australia. Case based learning and its integration within clinical curriculum is an…

Mindfulness-Based Childbirth and Parenting Education: Promoting Family Mindfulness during the Perinatal Period

ERIC Educational Resources Information Center

Duncan, Larissa G.; Bardacke, Nancy

2010-01-01

We present the conceptual and empirical foundation and curriculum content of the Mindfulness-Based Childbirth and Parenting (MBCP) program and the results of a pilot study of n = 27 pregnant women participating in MBCP during their third trimester of pregnancy. MBCP is a formal adaptation of the Mindfulness-Based Stress Reduction program and was…

Learning Science Content through Socio-Scientific Issues-Based Instruction: A Multi-Level Assessment Study

ERIC Educational Resources Information Center

Sadler, Troy D.; Romine, William L.; Topçu, Mustafa Sami

2016-01-01

Science educators have presented numerous conceptual and theoretical arguments in favor of teaching science through the exploration of socio-scientific issues (SSI). However, the empirical knowledge base regarding the extent to which SSI-based instruction supports student learning of science content is limited both in terms of the number of…

Adaptation Provisioning with Respect to Learning Styles in a Web-Based Educational System: An Experimental Study

ERIC Educational Resources Information Center

Popescu, E.

2010-01-01

Personalized instruction is seen as a desideratum of today's e-learning systems. The focus of this paper is on those platforms that use learning styles as personalization criterion called learning style-based adaptive educational systems. The paper presents an innovative approach based on an integrative set of learning preferences that alleviates…

Community-Based Health Programmes: Role Perceptions and Experiences of Female Peer Facilitators in Mumbai's Urban Slums

ERIC Educational Resources Information Center

Alcock, Glyn A.; More, Neena Shah; Patil, Sarita; Porel, Maya; Vaidya, Leena; Osrin, David

2009-01-01

Community-based initiatives have become a popular approach to addressing the health needs of underserved populations, in both low- and higher-income countries. This article presents findings from a study of female peer facilitators involved in a community-based maternal and newborn health intervention in urban slum areas of Mumbai. Using…

Exploring the Context of Strengths--A New Approach to Strength-Based Assessment

ERIC Educational Resources Information Center

Bozic, Nick; Lawthom, Rebecca; Murray, Janice

2018-01-01

Since the 1990s many strength-based assessments (for example, inventories, checklists, interview schedules) have been developed for use with children and young people, but these have offered a limited appraisal of the contexts in which strengths are present. In this study a new form of contextualised strength-based assessment was used within the…

The Effectiveness of Using Cloud-Based Cross-Device IRS to Support Classical Chinese Learning

ERIC Educational Resources Information Center

Wang, Yi-Hsuan

2017-01-01

The purpose of the present study was to examine the effects of integrating a cloud-based cross-device interactive response system (CCIRS) on enhancing students' classical Chinese learning. The system is a cloud-based IRS system which provides instructors and learners with an environment in which to achieve immediate interactive learning and…

Embedding Research in a Field-Based Module through Peer Review and Assessment for Learning

ERIC Educational Resources Information Center

Nicholson, Dawn T.

2011-01-01

A case study is presented of embedding research in a final year undergraduate, field-based, physical geography module. The approach is holistic, whereby research-based learning activities simulate the full life cycle of research from inception through to peer review and publication. The learning, teaching and assessment strategy emphasizes the…

The Effectiveness of Using an Explicit Language Learning Strategy-Based Instruction in Developing Secondary School Students' EFL Listening Comprehension Skills

ERIC Educational Resources Information Center

Amin, Iman Abdul-Reheem; Amin, Magdy Mohammad; Aly, Mahsoub Abdul-Sadeq

2011-01-01

The present study aimed at exploring the effectiveness of using explicit language learning strategy-based instruction in developing secondary school students' EFL listening comprehension skills. It was hypothesized that using explicit strategy-based instruction would develop students' EFL listening comprehension skill and its sub-skills. The…

Place-Based Learning: Action Learning in MA Program for Educational Practitioners

ERIC Educational Resources Information Center

Glassner, Amnon; Eran-Zoran, Yael

2016-01-01

The study presents a new pedagogical idea and practice for educational practitioners. The practice was developed as a workshop of MA program in order to change and expand the meaning of education for the wellbeing of the community. The "place-based learning" workshop combined action learning (AL) with project-based learning (PBL). The…

The Intersection of Community-Based Writing and Computer-Based Writing: A Cyberliteracy Case Study.

ERIC Educational Resources Information Center

Gabor, Catherine

The learning goals that inform service learning as a whole can contribute to the computers and writing field significantly. This paper demonstrates how two lines of inquiry can be furthered, community-based writing and computers and writing, through new data and critical reflection on learning goals and communication tools. The paper presents a…

Effectiveness of Wellness-Based Classroom Guidance in Elementary School Settings: A Pilot Study

ERIC Educational Resources Information Center

Villalba, Jose A.; Myers, Jane E.

2008-01-01

A three-session, wellness-based classroom guidance unit was developed based on the Indivisible Self wellness model and presented to 55 students in 5th grade. Participants completed the Five Factor Wellness Inventory, Elementary School Version, before and after the unit. Wellness scores were significantly and positively higher at post-testing for…

Web-Based Tools for Modelling and Analysis of Multivariate Data: California Ozone Pollution Activity

ERIC Educational Resources Information Center

Dinov, Ivo D.; Christou, Nicolas

2011-01-01

This article presents a hands-on web-based activity motivated by the relation between human health and ozone pollution in California. This case study is based on multivariate data collected monthly at 20 locations in California between 1980 and 2006. Several strategies and tools for data interrogation and exploratory data analysis, model fitting…

Affective Realism of Animated Films in the Development of Simulation-Based Tutoring Systems

ERIC Educational Resources Information Center

Ekanayake, Hiran B.; Fors, Uno; Ramberg, Robert; Ziemke, Tom; Backlund, Per; Hewagamage, Kamalanath P.

2013-01-01

This paper presents a study focused on comparing real actors based scenarios and animated characters based scenarios with respect to their similarity in evoking psychophysiological activity for certain events by measuring galvanic skin response (GSR). In the experiment, one group (n = 11) watched the real actors' film whereas another group (n…

Scale Development of a Measure to Assess Community-Based and Clinical Intervention Group Environments

ERIC Educational Resources Information Center

Wilson, Patrick A.; Hansen, Nathan B.; Tarakeshwar, Nalini; Neufeld, Sharon; Kochman, Arlene; Sikkema, Kathleen J.

2008-01-01

Though group interventions are widely used in community-based and clinical settings, there are few brief instruments for assessing the group environment. Two studies on the development of a brief measure to assess intervention group environments are described, and psychometric properties of the new scale are presented. The new measure is based on…

Remediation Strategies for Learners at Risk of Failure: A Course Based Retention Model

ERIC Educational Resources Information Center

Gajewski, Agnes; Mather, Meera

2015-01-01

This paper presents an overview and discussion of a course based remediation model developed to enhance student learning and increased retention based on literature. This model focuses on course structure and course delivery in a compressed semester format. A comparative analysis was applied to a pilot study of students enrolled in a course…

Students' Mathematics Word Problem-Solving Achievement in a Computer-Based Story

ERIC Educational Resources Information Center

Gunbas, N.

2015-01-01

The purpose of this study was to investigate the effect of a computer-based story, which was designed in anchored instruction framework, on sixth-grade students' mathematics word problem-solving achievement. Problems were embedded in a story presented on a computer as computer story, and then compared with the paper-based version of the same story…

Visual and Spatial Working Memory Are Not that Dissociated after All: A Time-Based Resource-Sharing Account

ERIC Educational Resources Information Center

Vergauwe, Evie; Barrouillet, Pierre; Camos, Valerie

2009-01-01

Examinations of interference between visual and spatial materials in working memory have suggested domain- and process-based fractionations of visuo-spatial working memory. The present study examined the role of central time-based resource sharing in visuo-spatial working memory and assessed its role in obtained interference patterns. Visual and…

Communications Based Train Control (CBTC) Before and After Cost Study

DOT National Transportation Integrated Search

2011-03-01

San Francisco Municipal Railway (Muni) undertook a retrofit of a fixed-block signaling system with a communications-based train control (CBTC) system in the subway portion of their light rail system (Muni Metro subway) in 1998. This report presents t...

Agent-Based vs. Equation-based Epidemiological Models:A Model Selection Case Study

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

Sukumar, Sreenivas R; Nutaro, James J

This paper is motivated by the need to design model validation strategies for epidemiological disease-spread models. We consider both agent-based and equation-based models of pandemic disease spread and study the nuances and complexities one has to consider from the perspective of model validation. For this purpose, we instantiate an equation based model and an agent based model of the 1918 Spanish flu and we leverage data published in the literature for our case- study. We present our observations from the perspective of each implementation and discuss the application of model-selection criteria to compare the risk in choosing one modeling paradigmmore » to another. We conclude with a discussion of our experience and document future ideas for a model validation framework.« less

Project-based physics labs using low-cost open-source hardware

NASA Astrophysics Data System (ADS)

Bouquet, F.; Bobroff, J.; Fuchs-Gallezot, M.; Maurines, L.

2017-03-01

We describe a project-based physics lab, which we proposed to third-year university students. These labs are based on new open-source low-cost equipment (Arduino microcontrollers and compatible sensors). Students are given complete autonomy: they develop their own experimental setup and study the physics topic of their choice. The goal of these projects is to let students to discover the reality of experimental physics. Technical specifications of the acquisition material and case studies are presented for practical implementation in other universities.

Comparative study of performance of neutral axis tracking based damage detection

NASA Astrophysics Data System (ADS)

Soman, R.; Malinowski, P.; Ostachowicz, W.

2015-07-01

This paper presents a comparative study of a novel SHM technique for damage isolation. The performance of the Neutral Axis (NA) tracking based damage detection strategy is compared to other popularly used vibration based damage detection methods viz. ECOMAC, Mode Shape Curvature Method and Strain Flexibility Index Method. The sensitivity of the novel method is compared under changing ambient temperature conditions and in the presence of measurement noise. Finite Element Analysis (FEA) of the DTU 10 MW Wind Turbine was conducted to compare the local damage identification capability of each method and the results are presented. Under the conditions examined, the proposed method was found to be robust to ambient condition changes and measurement noise. The damage identification in some is either at par with the methods mentioned in the literature or better under the investigated damage scenarios.

Web-based tools for modelling and analysis of multivariate data: California ozone pollution activity

PubMed Central

Dinov, Ivo D.; Christou, Nicolas

2014-01-01

This article presents a hands-on web-based activity motivated by the relation between human health and ozone pollution in California. This case study is based on multivariate data collected monthly at 20 locations in California between 1980 and 2006. Several strategies and tools for data interrogation and exploratory data analysis, model fitting and statistical inference on these data are presented. All components of this case study (data, tools, activity) are freely available online at: http://wiki.stat.ucla.edu/socr/index.php/SOCR_MotionCharts_CAOzoneData. Several types of exploratory (motion charts, box-and-whisker plots, spider charts) and quantitative (inference, regression, analysis of variance (ANOVA)) data analyses tools are demonstrated. Two specific human health related questions (temporal and geographic effects of ozone pollution) are discussed as motivational challenges. PMID:24465054

Web-based tools for modelling and analysis of multivariate data: California ozone pollution activity.

PubMed

Dinov, Ivo D; Christou, Nicolas

2011-09-01

This article presents a hands-on web-based activity motivated by the relation between human health and ozone pollution in California. This case study is based on multivariate data collected monthly at 20 locations in California between 1980 and 2006. Several strategies and tools for data interrogation and exploratory data analysis, model fitting and statistical inference on these data are presented. All components of this case study (data, tools, activity) are freely available online at: http://wiki.stat.ucla.edu/socr/index.php/SOCR_MotionCharts_CAOzoneData. Several types of exploratory (motion charts, box-and-whisker plots, spider charts) and quantitative (inference, regression, analysis of variance (ANOVA)) data analyses tools are demonstrated. Two specific human health related questions (temporal and geographic effects of ozone pollution) are discussed as motivational challenges.

Computational analysis of water entry of a circular section at constant velocity based on Reynold's averaged Navier-Stokes method

NASA Astrophysics Data System (ADS)

Uddin, M. Maruf; Fuad, Muzaddid-E.-Zaman; Rahaman, Md. Mashiur; Islam, M. Rabiul

2017-12-01

With the rapid decrease in the cost of computational infrastructure with more efficient algorithm for solving non-linear problems, Reynold's averaged Navier-Stokes (RaNS) based Computational Fluid Dynamics (CFD) has been used widely now-a-days. As a preliminary evaluation tool, CFD is used to calculate the hydrodynamic loads on offshore installations, ships, and other structures in the ocean at initial design stages. Traditionally, wedges have been studied more than circular cylinders because cylinder section has zero deadrise angle at the instant of water impact, which increases with increase of submergence. In Present study, RaNS based commercial code ANSYS Fluent is used to simulate the water entry of a circular section at constant velocity. It is seen that present computational results were compared with experiment and other numerical method.

Does presentation at the Registrars' Papers Day predict future publication?

PubMed

Wong, Shing W; Crowe, Philip J

2006-06-01

There are research requirements for trainees to be eligible to present for their final examinations (Fellowship of Royal Australasian College of Surgeons, FRACS). One option is the presentation of a paper or poster at a meeting of which abstracts are subject to review and selection. This includes presentation at the annual Registrars' Papers Day (RPD) in New South Wales. There has been some debate surrounding whether research requirements are fulfilled by presentation at such meetings. Publication in a peer-reviewed journal should be the ultimate aim. A high publication rate will validate the quality of the meeting. All abstracts submitted to the RPD in 1998 and 1999 were analysed. A Medline search was performed in 2005 to identify publication of these presentations in a peer-reviewed journal. Variables of the study that were potentially predictive of subsequent publication were analysed. This included type of presentation, surgical specialty, clinical or laboratory-based study, study design (prospective or retrospective) and sample size. Chi-squared test with Yates' continuity correction was used to compare two independent proportions and significance was set at P < 0.05. The publication rates were: oral presentations 50% (17/34), poster presentations 39% (9/23) and rejected presentations 20% (2/10). The mean and median time to publication was 23.8 and 21.0 months. Prospective design was the only variable identified to have a statistically significant effect on the publication rate (P < 0.002). The most common publishing journal was the Australian and New Zealand Journal of Surgery (12 of 26). Overall consistency (author and study sample consistency) from presentation to publication was 32%. The overall 46% publication rate of this state-based trainees-organized meeting compares favourably with international meetings. The research requirement of the Royal Australasian College of Surgeons (RACS), which includes presentation at the RPD in New South Wales, produces good quality papers for publication.

Holding-based network of nations based on listed energy companies: An empirical study on two-mode affiliation network of two sets of actors

NASA Astrophysics Data System (ADS)

Li, Huajiao; Fang, Wei; An, Haizhong; Gao, Xiangyun; Yan, Lili

2016-05-01

Economic networks in the real world are not homogeneous; therefore, it is important to study economic networks with heterogeneous nodes and edges to simulate a real network more precisely. In this paper, we present an empirical study of the one-mode derivative holding-based network constructed by the two-mode affiliation network of two sets of actors using the data of worldwide listed energy companies and their shareholders. First, we identify the primitive relationship in the two-mode affiliation network of the two sets of actors. Then, we present the method used to construct the derivative network based on the shareholding relationship between two sets of actors and the affiliation relationship between actors and events. After constructing the derivative network, we analyze different topological features on the node level, edge level and entire network level and explain the meanings of the different values of the topological features combining the empirical data. This study is helpful for expanding the usage of complex networks to heterogeneous economic networks. For empirical research on the worldwide listed energy stock market, this study is useful for discovering the inner relationships between the nations and regions from a new perspective.

The temporal stability and predictive validity of affect-based and cognition-based intentions.

PubMed

Keer, Mario; Conner, Mark; Van den Putte, Bas; Neijens, Peter

2014-06-01

Recent research has revealed individual differences in the extent to which people base their intentions on affect and cognition. Two studies are presented that assess whether such differences predict the strength of individuals' intention-behaviour relationships. Participants completed measures of affect, cognition, intention, and behaviour regarding a range of health behaviours. Study 1 (N = 300) found that the strength of the intention-behaviour relationship was significantly related to the extent to which individuals based their intentions on affect, but not to the extent they based them on cognition. Study 2 (N = 387) replicated the findings of the first study. In addition, Study 2 revealed that intention stability mediated the relationship between the degree people based their intentions on affect and the strength of the intention-behaviour relationship. Thus, individuals who base their intentions strongly on affect have more stable intentions, and are therefore more likely to enact them. © 2013 The British Psychological Society.

Documents of the JPL Photovoltaics Program Analysis and Integration Center: An annotated bibliography

NASA Technical Reports Server (NTRS)

Pearson, A. M.

1985-01-01

A bibliography of internal and external documents produced by the Jet Propulsion Laboratory, based on the work performed by the Photovoltaics Program Analysis and Integration Center, is presented with annotations. As shown in the Table of Contents, the bibliography is divided into three subject areas: (1) Assessments, (2) Methdological Studies, and (3) Supporting Studies. Annotated abstracts are presented for 20 papers.

Pre-Attentive Auditory Processing of Lexicality

ERIC Educational Resources Information Center

Jacobsen, Thomas; Horvath, Janos; Schroger, Erich; Lattner, Sonja; Widmann, Andreas; Winkler, Istvan

2004-01-01

The effects of lexicality on auditory change detection based on auditory sensory memory representations were investigated by presenting oddball sequences of repeatedly presented stimuli, while participants ignored the auditory stimuli. In a cross-linguistic study of Hungarian and German participants, stimulus sequences were composed of words that…

Evaluation of installed solar systems at Navy, Army, and Air Force Bases. Final report, October 1984-September 1985

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

Durlak, E.R.

1986-05-01

This report presents a summary of the results of site-evaluation inspection conducted at Navy, Army, and Air Force base. The solar systems evaluated included space heating, space cooling, and domestic hot water system. The systems range in size from small two-collector systems to large arrays installed on barracks, mess halls, office buildings, etc. These operational results are presented so that future designs will benefit from the lesson learned in this study.

Nonlinear program based optimization of boost and buck-boost converter designs

NASA Astrophysics Data System (ADS)

Rahman, S.; Lee, F. C.

The facility of an Augmented Lagrangian (ALAG) multiplier based nonlinear programming technique is demonstrated for minimum-weight design optimizations of boost and buck-boost power converters. Certain important features of ALAG are presented in the framework of a comprehensive design example for buck-boost power converter design optimization. The study provides refreshing design insight of power converters and presents such information as weight and loss profiles of various semiconductor components and magnetics as a function of the switching frequency.

Robust model predictive control for satellite formation keeping with eccentricity/inclination vector separation

NASA Astrophysics Data System (ADS)

Lim, Yeerang; Jung, Youeyun; Bang, Hyochoong

2018-05-01

This study presents model predictive formation control based on an eccentricity/inclination vector separation strategy. Alternative collision avoidance can be accomplished by using eccentricity/inclination vectors and adding a simple goal function term for optimization process. Real-time control is also achievable with model predictive controller based on convex formulation. Constraint-tightening approach is address as well improve robustness of the controller, and simulation results are presented to verify performance enhancement for the proposed approach.

Broca’s aphasia due to cerebral venous sinus thrombosis following chemotherapy for small cell lung cancer: A case report and review of literature

PubMed Central

TUNCEL, TOLGA; OZGUN, ALPASLAN; EMIRZEOĞLU, LEVENT; CELİK, SERKAN; DEMİR, SERKAN; BILGI, OGUZ; KARAGOZ, BULENT

2015-01-01

Cancer is associated with an increased risk of cerebrovascular incidents and treatment with chemotherapy enhances that risk further. Brocha’s aphasia is a stroke-related syndrome, the presentation of which has been rarely reported during cisplatin-based chemotherapy. The current study presents the case of a 27-year-old male with advanced-stage small cell lung cancer. The patient developed Broca’s aphasia following cisplatin-based chemotherapy. PMID:25621071

Pre‐historic eating patterns in Latin America and protective effects of plant‐based diets on cardiovascular risk factors

PubMed Central

Acosta Navarro, Julio C; Cárdenas Prado, Silvia M; Cárdenas, Pedro Acosta; Santos, Raul D; Caramelli, Bruno

2010-01-01

In this review, we present the contributions to nutrition science from Latin American native peoples and scientists, appreciated from a historic point of view since pre‐historic times to the modern age. Additionally, we present epidemiological and clinical studies on the area of plant‐based diets and their relation with the prevention and treatment of cardiovascular diseases conducted in recent decades, and we discuss challenges and perspectives regarding aspects of nutrition in the region. PMID:21120310