WorldWideScience

Sample records for style test preparation

  1. The Effect of the Attachment Styles and Self-Efficacy of Adolescents Preparing for University Entrance Tests in Turkey on Predicting Test Anxiety

    Science.gov (United States)

    Erzen, Evren; Odaci, Hatice

    2016-01-01

    The purpose of this study was to determine the effect of attachment styles and self-efficacy of adolescents preparing for university entrance exams in Turkey on predicting test anxieties. The study group consisted of 884 final-year high school students (423 female and 461 male) attending different types of high school, preparing for university…

  2. Preparing Special Education Research Articles in APA Style.

    Science.gov (United States)

    Algozzine, Bob; Spooner, Fred; Karvonen, Meagan

    2002-01-01

    This article addresses key considerations in preparing special education research articles for submission to professional journals in which the preferred style guide is the "Publication Manual of the American Psychological Association." The guidelines are drawn from special education literature, from editors, and from authors experienced in…

  3. Test Preparation: Your Role

    Science.gov (United States)

    ... in enough fluids (dehydration), excessive eating, or recent sexual activity. You may be asked to refrain from some ... drugs that can affect the 5-HIAA test. Cortisol : resting before sample collection may be required and, ...

  4. Learning style, school environment and test anxiety as correlates of ...

    African Journals Online (AJOL)

    The study investigated learning styles, school environment and test anxiety as predictors of learning outcomes among secondary school students. The participants were three hundred senior secondary two students randomly selected from randomly selected secondary schools in Iseyin Local Government Area of Oyo State.

  5. Style

    DEFF Research Database (Denmark)

    Rösing, Lilian Munk

    2017-01-01

    Defined as the tropes, figures, and grammar of the text, style is quite concrete, quite analyzable. Pure detection and identification of the tropes and figures of a text is not very interesting to literary studies, though, unless it is combined with interpretation, that is, unless you ask: What...

  6. Effects of mental imagery styles on shoulder and hip rotations during preparation of pirouettes.

    Science.gov (United States)

    Golomer, Eveline; Bouillette, Arnaud; Mertz, Caroline; Keller, Jean

    2008-07-01

    To analyze individual behavior in spatial navigation especially for pirouette preparations (complete whole-body rotations), the authors studied horizontal shoulder-hip interactions under 2 constraints: postural (right and left supporting legs [SL]) and spatial (clockwise [CW] and counterclockwise [CCW]). They performed kinematic analysis at the start and end of the shoulder-hip horizontal rotations (run-up) with regard to imagery of motor actions. On the basis of the Vividness of Movement Imagery Questionnaire, they classified 8 female expert ballet dancers and 7 untrained female participants according to their movement imagery style (kinesthetic and visual). At the run-up's end, the shoulders initiated the turn independently of SL but differently depending on training: CW for dancers and CCW for untrained participants (their commonly used direction). Kinesthetic and mixed imagery styles prevailed in dancers, whereas simply a mixed style appeared among untrained participants. Thus, dance training enhances the imagery of kinesthetic sensation and influences the choice of spatial direction, facilitating the body-space interaction.

  7. Testing the predictions of coping styles theory in threespined sticklebacks.

    Science.gov (United States)

    Bensky, Miles K; Paitz, Ryan; Pereira, Laura; Bell, Alison M

    2017-03-01

    Coping styles theory provides a framework for understanding individual variation in how animals respond to environmental change, and predicts how individual differences in stress responsiveness and behavior might relate to cognitive differences. According to coping styles theory, proactive individuals are bolder, less reactive to stressors, and more routinized than their reactive counterparts. A key tenet of coping styles theory is that variation in coping styles is maintained by tradeoffs with behavioral flexibility: proactive individuals excel in stable environments while more flexible, reactive individuals perform better in variable environments. Here, we assess evidence for coping styles within a natural population of threespined sticklebacks (Gasterosteus aculeatus). We developed a criterion-based learning paradigm to evaluate individual variation in initial and reversal learning. We observed strong individual differences in boldness, cortisol production, and learning performance. Consistent with coping styles, fish that released more cortisol were more timid in response to a predator attack and slower to learn a color discrimination task. However, there was no evidence that reactive individuals performed better when the environment changed (when the rewarded color was reversed). The failure to detect trade-offs between behavioral routinization and flexibility prompts other explanations for the maintenance of differing coping styles. Copyright © 2016 Elsevier B.V. All rights reserved.

  8. A Test of Two Alternative Cognitive Processing Models: Learning Styles and Dual Coding

    Science.gov (United States)

    Cuevas, Joshua; Dawson, Bryan L.

    2018-01-01

    This study tested two cognitive models, learning styles and dual coding, which make contradictory predictions about how learners process and retain visual and auditory information. Learning styles-based instructional practices are common in educational environments despite a questionable research base, while the use of dual coding is less…

  9. Development and testing of a cross-culturally valid instrument: food-related life style

    DEFF Research Database (Denmark)

    Brunsø, Karen; Grunert, Klaus G.

    1995-01-01

    Based on a cognitive perspective, we propose to make life style specific to certain areas of consumption. The specific area of consumption studied here is food, resulting in a concept of food-related life style. We have developed an instrument tha measure food-related life style in a cross......-culturaly valid way. To this end we have developed a pool of 202 items, collected data in three countries, and have constructed scales based on cross-culturally stable factor patterns. We have then applie set of scales to a fourth country, in order to further test the cross-cultural validity of the instrument....

  10. Orion Ammonia Boiler System Preflight Test Preparations

    Science.gov (United States)

    Levitt, Julia L.

    2017-01-01

    The Environmental Controls and Life Support Systems (ECLSS) branch at Kennedy Space Center (KSC) is currently undergoing preparations for ground testing of the Orion Multi-Purpose Crew Vehicle (MPCV) to prepare its subsystems for EM-1 (Exploration Mission-1). EM-1, Orions second unmanned flight, is a three-week long lunar mission during which the vehicle will complete a 6-day retrograde lunar orbit before returning to Earth. This paper focuses on the work done during the authors 16-week internship with the Mechanical Engineering Branch of KSCs Engineering Directorate. The authors project involved assisting with the preparations for testing the Orion MPCVs ammonia boiler system. The purpose of the ammonia boiler system is to keep the spacecraft sufficiently cool during the reentry portion of its mission, from service module (SM) separation to post-landing. This system is critical for keeping both the spacecraft (avionics and electronics) and crew alive during reentry, thus a successful test of the system is essential to the success of EM-1. XXXX The author was able to draft a detailed outline of the procedure for the ammonia system functional test. More work will need to be done on the vehicle power-up and power-down portions of the procedure, but the ammonia system testing portion of the procedure is thorough and includes vehicle test configurations, vehicle commands, and GSE. The author was able to compile a substantial list of questions regarding the ammonia system functional test with the help of her mentors. A significant number of these questions were answered in the teleconferences with Lockheed Martin.

  11. Using An Adapter To Perform The Chalfant-Style Containment Vessel Periodic Maintenance Leak Rate Test

    International Nuclear Information System (INIS)

    Loftin, B.; Abramczyk, G.; Trapp, D.

    2011-01-01

    Recently the Packaging Technology and Pressurized Systems (PT and PS) organization at the Savannah River National Laboratory was asked to develop an adapter for performing the leak-rate test of a Chalfant-style containment vessel. The PT and PS organization collaborated with designers at the Department of Energy's Pantex Plant to develop the adapter currently in use for performing the leak-rate testing on the containment vessels. This paper will give the history of leak-rate testing of the Chalfant-style containment vessels, discuss the design concept for the adapter, give an overview of the design, and will present results of the testing done using the adapter.

  12. Testing and Measurement Potentials of Microcomputers for Cognitive Style Research and Individualized Instruction.

    Science.gov (United States)

    Burroway, Robert L.

    Microcomputer versions of three commonly used cognitive style measurement instruments are described and demonstrated: the Leveling-Sharpening House Test (LSHT) (Santostefano, 1964); Lowenfeld's Successive Impressions Test I (SIT-I) (1945); and the Group Embedded Figures Test (GEFT) (Witkin, Oltman, Ruskin, and Karp, 1971). At present, many…

  13. GES [Ground Engineering System] test site preparation

    International Nuclear Information System (INIS)

    Cox, C.M.; Mahaffey, M.K.; Miller, W.C.; Schade, A.R.; Toyoda, K.G.

    1987-10-01

    Activities are under way at Hanford to convert the 309 containment building and its associated service wing to a nuclear test facility for the Ground Engineering System (GES) test. Conceptual design is about 80% complete, encompassing facility modifications, a secondary heat transport system, a large vacuum system, a test article cell and handing system, control and data handling systems, and safety andl auxiliary systems. The design makes extensive use of existing equipment to minimize technical risk and cost. Refurbishment of this equipment is 25% complete. Cleanout of some 1000 m 3 of equipment from the earlier reactor test in the facility is 85% complete. An Environmental Assessment was prepared and revised to incorporate Department of Energy (DOE) comments. It is now in the DOE approval chain, where a Finding of No Significant Impact is expected. During the next year, definite design will be well advanced, long-lead procurements will be initiated, construction planning will be completed, an operator training plan will be prepared, and the site (preliminary) safety analysis report will be drafted

  14. Perceptual Learning Style and Learning Proficiency: A Test of the Hypothesis

    Science.gov (United States)

    Kratzig, Gregory P.; Arbuthnott, Katherine D.

    2006-01-01

    Given the potential importance of using modality preference with instruction, the authors tested whether learning style preference correlated with memory performance in each of 3 sensory modalities: visual, auditory, and kinesthetic. In Study 1, participants completed objective measures of pictorial, auditory, and tactile learning and learning…

  15. An interactive style of the testing database production for EIS

    Directory of Open Access Journals (Sweden)

    Milan Mišovič

    2006-01-01

    Full Text Available Using a progressive Information Technology for development of Software Modules for Enterprise Information Systems brings a lot of practical and theoretical problems. One of them is a verification of results achieved in Life Cycle Stages, especially in the analysis stage. Instead of a very deep theoretical approach we can use quite practical testing by means of a testing database. Such testing database has to be constructed gradually from the Data Flow Diagram by a special algorithm.This article introduces a formal description of the entity population and entity states. There is suggested to deal with fragments of the DFD that are produced with respect to the event set. This DFD event fragment is refined to transactions and their elementary functions. There is defined a transaction path in every transaction. By means of a special state equation system is generally defined conception of a correct functional processing of entities going along a selected transaction path. Solutions of such state equation systems are platform for getting a testing database.

  16. USING AN ADAPTER TO PERFORM THE CHALFANT-STYLE CONTAINMENT VESSEL PERIODIC MAINTENANCE LEAK RATE TEST

    Energy Technology Data Exchange (ETDEWEB)

    Loftin, B.; Abramczyk, G.; Trapp, D.

    2011-06-03

    Recently the Packaging Technology and Pressurized Systems (PT&PS) organization at the Savannah River National Laboratory was asked to develop an adapter for performing the leak-rate test of a Chalfant-style containment vessel. The PT&PS organization collaborated with designers at the Department of Energy's Pantex Plant to develop the adapter currently in use for performing the leak-rate testing on the containment vessels. This paper will give the history of leak-rate testing of the Chalfant-style containment vessels, discuss the design concept for the adapter, give an overview of the design, and will present results of the testing done using the adapter.

  17. 40 CFR 205.57-3 - Test vehicle preparation.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Test vehicle preparation. 205.57-3... PROGRAMS TRANSPORTATION EQUIPMENT NOISE EMISSION CONTROLS Medium and Heavy Trucks § 205.57-3 Test vehicle preparation. (a) Prior to the official test, the test vehicle selected in accordance with § 205-57-2 shall not...

  18. Food-related life styles in Singapore: Testing a Western European research instrument in Southeast Asia

    DEFF Research Database (Denmark)

    Askegaard, Søren; Brunsø, Karen; Crippen, Kaye

    , and to interpret similarities and differences found. For this purpose, data have been collected in Singaporean families using the food-related life style instrument. A total of 89 questionnaires form the basis of the analysis. First, the cross-cultural validity of the instrument is tested, and secondly......, in the light of those results, we interpret the results in relationship to local food cultures....

  19. Ethical Test Preparation Practice: The Case of the TOEFL.

    Science.gov (United States)

    Hamp-Lyons, Liz

    1998-01-01

    This discussion focuses on the role of textbooks in test washback, using the case of the Test of English as a Foreign Language (TOEFL) to examine prevalent practices in test preparation and the materials used in such preparation. (Author/VWL)

  20. Preparing the next generation of genomicists: a laboratory-style course in medical genomics.

    Science.gov (United States)

    Linderman, Michael D; Bashir, Ali; Diaz, George A; Kasarskis, Andrew; Sanderson, Saskia C; Zinberg, Randi E; Mahajan, Milind; Shah, Hardik; Suckiel, Sabrina; Zweig, Micol; Schadt, Eric E

    2015-08-12

    The growing gap between the demand for genome sequencing and the supply of trained genomics professionals is creating an acute need to develop more effective genomics education. In response we developed "Practical Analysis of Your Personal Genome", a novel laboratory-style medical genomics course in which students have the opportunity to obtain and analyze their own whole genome. This report describes our motivations for and the content of a "practical" genomics course that incorporates personal genome sequencing and the lessons we learned during the first three iterations of this course.

  1. 10 CFR 26.93 - Preparing for alcohol testing.

    Science.gov (United States)

    2010-01-01

    ... 10 Energy 1 2010-01-01 2010-01-01 false Preparing for alcohol testing. 26.93 Section 26.93 Energy NUCLEAR REGULATORY COMMISSION FITNESS FOR DUTY PROGRAMS Collecting Specimens for Testing § 26.93 Preparing... shall— (1) Ask the donor whether he or she, in the past 15 minutes, has had anything to eat or drink...

  2. Timestamp Test Report - Preparred for Champ Mission

    DEFF Research Database (Denmark)

    Denver, Troelz

    1999-01-01

    This test is performed in order to assess the time relation between the GPS real time timestamping of attitude TCs from the Advanced Stellar Compass (ASC) and the integration periods of the CCD cameras....

  3. 40 CFR 1065.405 - Test engine preparation and maintenance.

    Science.gov (United States)

    2010-07-01

    ....405 Test engine preparation and maintenance. This part 1065 describes how to test engines for a... stabilized, run the test engine, with all emission control systems operating, long enough to stabilize... good engineering judgment requires that you consider both the purpose of the test and how your...

  4. ORNL Pre-test Analyses of A Large-scale Experiment in STYLE

    International Nuclear Information System (INIS)

    Williams, Paul T.; Yin, Shengjun; Klasky, Hilda B.; Bass, Bennett Richard

    2011-01-01

    Oak Ridge National Laboratory (ORNL) is conducting a series of numerical analyses to simulate a large scale mock-up experiment planned within the European Network for Structural Integrity for Lifetime Management non-RPV Components (STYLE). STYLE is a European cooperative effort to assess the structural integrity of (non-reactor pressure vessel) reactor coolant pressure boundary components relevant to ageing and life-time management and to integrate the knowledge created in the project into mainstream nuclear industry assessment codes. ORNL contributes work-in-kind support to STYLE Work Package 2 (Numerical Analysis/Advanced Tools) and Work Package 3 (Engineering Assessment Methods/LBB Analyses). This paper summarizes the current status of ORNL analyses of the STYLE Mock-Up3 large-scale experiment to simulate and evaluate crack growth in a cladded ferritic pipe. The analyses are being performed in two parts. In the first part, advanced fracture mechanics models are being developed and performed to evaluate several experiment designs taking into account the capabilities of the test facility while satisfying the test objectives. Then these advanced fracture mechanics models will be utilized to simulate the crack growth in the large scale mock-up test. For the second part, the recently developed ORNL SIAM-PFM open-source, cross-platform, probabilistic computational tool will be used to generate an alternative assessment for comparison with the advanced fracture mechanics model results. The SIAM-PFM probabilistic analysis of the Mock-Up3 experiment will utilize fracture modules that are installed into a general probabilistic framework. The probabilistic results of the Mock-Up3 experiment obtained from SIAM-PFM will be compared to those results generated using the deterministic 3D nonlinear finite-element modeling approach. The objective of the probabilistic analysis is to provide uncertainty bounds that will assist in assessing the more detailed 3D finite

  5. Testing knowledge sharing effectiveness: trust, motivation, leadership style, workplace spirituality and social network embedded model

    Directory of Open Access Journals (Sweden)

    Rahman Muhammad Sabbir

    2015-12-01

    Full Text Available The aim of this inquiry is to investigate the relationships among the antecedents of knowledge sharing effectiveness under the position of non-academic staff of higher learning institutions through an empirical test of a conceptual model consisting of trust, extrinsic and intrinsic motivation, leadership style, workplace spirituality and online social network. This study used the respondents from the non-academic staff of higher learning institutions in Malaysia (n = 200, utilizing a self-administered survey questionnaire. The structural equation modeling approach was used to test the proposed hypotheses. The outcomes indicate that all the antecedents play a substantial function in knowledge sharing effectiveness. In addition, perceived risk plays a mediating role between trust and knowledge sharing effectiveness. On the other hand, this research also proved the communication skill also plays a mediating role between leadership style and knowledge sharing effectiveness. This study contributes to pioneering empirical findings on knowledge sharing literature under the scope of the non-academic staff perspective.

  6. Home-style beef jerky: effect of four preparation methods on consumer acceptability and pathogen inactivation.

    Science.gov (United States)

    Harrison, J A; Harrison, M A; Rose-Morrow, R A; Shewfelt, R L

    2001-08-01

    The safety of homemade jerky continues to be questioned. Producing a safe product that retains acceptable quality attributes is important. Lethality of Salmonella, Escherichia coli O157:H7, and Listeria monocytogenes as well as consumer acceptability and sensory attributes of jerky prepared by four methods were examined. Preparation methods were drying marinated strips at 60 degrees C (representing a traditional method), boiling strips in marinade or heating in an oven to 71 degrees C prior to drying, and heating strips in an oven after drying to 71 degrees C. A 60-member consumer panel rated overall acceptability. A 10-member descriptive panel evaluated quality attributes. Samples heated after drying and samples boiled in marinade prior to drying had slightly higher acceptability scores but were not statistically different from traditional samples. Although the four treatments were significantly different in color (P = 0.0001), saltiness (P = 0.0001), and texture (P = 0.0324), only texture appeared to influence overall consumer acceptability. Microbial challenge studies subjecting the pathogens to the four treatments showed a 5.8-, 3.9-, and 4.6-log reduction of E. coli O157:H7, L. monocytogenes, and Salmonella, respectively, even with traditional drying. Oven treatment of strips after drying was shown to have the potential to reduce pathogen populations further by approximately 2 logs. In conclusion, a safer, yet acceptable home-dried beef jerky product can be produced by oven-heating jerky strips after drying.

  7. Besting Testing Hysteria: Reasonable Preparation for Standardized Tests.

    Science.gov (United States)

    Field, Sherry L.

    2000-01-01

    Explores the content of the Iowa Test of Basic Skills (ITBS) and describes similarities between the ITBS and the National Council for the Social Studies (NCSS) standards. Addresses three NCSS standards and how each may be represented on a standardized test. Provides eight confidence-boosting principles. (CMK)

  8. PREPARE: guidelines for planning animal research and testing.

    Science.gov (United States)

    Smith, Adrian J; Clutton, R Eddie; Lilley, Elliot; Hansen, Kristine E Aa; Brattelid, Trond

    2018-04-01

    There is widespread concern about the quality, reproducibility and translatability of studies involving research animals. Although there are a number of reporting guidelines available, there is very little overarching guidance on how to plan animal experiments, despite the fact that this is the logical place to start ensuring quality. In this paper we present the PREPARE guidelines: Planning Research and Experimental Procedures on Animals: Recommendations for Excellence. PREPARE covers the three broad areas which determine the quality of the preparation for animal studies: formulation, dialogue between scientists and the animal facility, and quality control of the various components in the study. Some topics overlap and the PREPARE checklist should be adapted to suit specific needs, for example in field research. Advice on use of the checklist is available on the Norecopa website, with links to guidelines for animal research and testing, at https://norecopa.no/PREPARE .

  9. The Preparation of Some Compounds for Testing as Insect Repellents

    Science.gov (United States)

    1945-12-14

    definitely increase th~ percentage of repellents, forty-three percent of all hydroxy esters tested were repellent whereas S^/i of all oyclo-hydroxy...o_-Ethoxybenzoic aoid was prepared from the sodium salt of ethyl salicylate and ethyl iodide. The resultant ethyl ethoxybenzoate was...is definitely detrimental« Enough keto-esters have not been prepared to warrant any conclusions with regard to them. Again it is to be

  10. HTI CONE PENETROMETER PROBES PREPARATION DEVELOPMENTAL TESTING REPORT

    Energy Technology Data Exchange (ETDEWEB)

    IWATATE, D.F.

    1998-10-26

    The HTI subsurface characterization task will use the Hanford Cone Penetrometer platform (CPP) to deploy soil sensor and sampling probes into the vadose zone/soils around AX-104 during FY-99. This report provides the data and information compiled during vendor field development tests and laboratory/bench checkout. This document is a vendor deliverable item identified in the ARA Statement of Work HNF-2881, Revision 1. This version of the DTR includes to-be-determined items and some incomplete sections. The Rev. 0 is being released to support the concurrent task of procedure preparation and Qualification Test Plan preparation. Revision 1 is planned to contain all data and information.

  11. Monitoring coping style moderates emotional reactions to genetic testing for hereditary nonpolyposis colorectal cancer: a longitudinal study.

    Science.gov (United States)

    Shiloh, S; Koehly, L; Jenkins, J; Martin, J; Hadley, D

    2008-08-01

    The emotional effects of genetic testing for hereditary nonpolyposis colorectal cancer (HNPCC) provided within a counseling program were assessed among 253 individuals. Assessments were scheduled at baseline before testing, and again after 6 and 12 months post-test. Negative emotional reactions were evaluated using the Revised Impact of Event Scale and the Center for Epidemiological Studies-Depression Scale. Monitoring coping style was assessed at baseline using the Miller Behavioral Style Scale. Mean reductions were indicated in distress and depression levels within the first 6 months after counseling and testing. High monitors were generally more distressed than low monitors, specifically if they had indeterminate or positive results. Genetic counseling and testing for HNPCC do not result in long-term distress for most people. Of the variables investigated, only time and coping style have main effects on emotional reactions, and the impacts of mutation status are moderated by coping style. Psychological interventions, aimed to alleviate adverse emotional effects, were suggested for certain participants, i.e. recipients of positive or indeterminate results who are high monitors.

  12. Testing the value and life-style model (VALS of psychographic market segmentation

    Directory of Open Access Journals (Sweden)

    G. G. Rousseau

    1990-06-01

    Full Text Available This article describes the development of a psychographic inventory suitable for testing the VALS model of market segmentation within the South African context. Hypotheses relating to value and life-style traits, suggested by prior research, are tested, utilising a sample of white and black respondents in the Johannesburg/Soweto metropolitan area. Results imply that the instrument developed has moderate reliability and can be administered bilingually. The VALS model tested by the instrument suggests that most respondents hold need-driven and outer-directed values. Impllications for value and lifestyle segmentation within the South African context are discussed. Opsomming Hierdie artikel beskryfdie ontwikkeling van 'n psigografiese inventaris geskik vir die toetsing van die VALS-model van marksegmentasie binne Suid-Afrikaanse verband. Hipoteses met betrekking tot waarde- en lewenstyltrekke, voortspruitend uit vorige navorsing, word getoets op 'n steekproef van wit en swart respondente in die Johannesburg/Soweto metropolitaanse gebied. Resultate toon dat die instrument gemiddelde betroubaarheid openbaar en toepasbaar is op 'n tweetalige grondslag. Die VALS-model soos getoets deur die instrument toon dat die meeste respondente behoefte-gedrewe en na buite gerigte waardes openbaar. Implikasies vir waarde- en lewenstylsegmentasie binne Suid-Afrikaanse verband word ook bespreek.

  13. A Test for Learning Style Differences for the U.S. Border Population.

    Science.gov (United States)

    Picou, Armand; Gatlin-Watts, Rebecca; Packer, James

    1998-01-01

    This study examined learning style differences in samples of the native Spanish-speaking population of the Texas-Mexico border region, focusing on possible culture- and gender-related variation. Subjects were 187 students at six universities in Texas, who were administered a Spanish translated version of the Gregorc Style Delineator. Results…

  14. Testing the alleged superiority of the indulgent parenting style among Spanish adolescents

    OpenAIRE

    Osorio de Rebellón-Yohn, A. (Alfonso); González-Cámara, M. (Marta)

    2016-01-01

    Background: While international studies have reported the superiority of the authoritative style (which combines parental involvement with demandingness), some studies in Spain and in other countries have found that the indulgent style (involvement without demandingness) might be just as good or even better. This study aims to discern whether the differences are cultural or methodological. Method: 306 adolescents from high ...

  15. Explaining varying lobbying styles across the Atlantic: An empirical test of the cultural and institutional explanation

    NARCIS (Netherlands)

    Hanegraaff, M.; Poletti, A.; Beyers, J.

    2017-01-01

    There is consensus in the literature that policymaking in the United States (US) and Europe generates different lobbying styles. Two explanations for these differences have been developed so far. The first posits that distinct lobbying styles reflect different political cultures. The second

  16. 40 CFR 86.152-98 - Vehicle preparation; refueling test.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 18 2010-07-01 2010-07-01 false Vehicle preparation; refueling test... PROGRAMS (CONTINUED) CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND ENGINES Emission Regulations for 1977 and Later Model Year New Light-Duty Vehicles and New Light-Duty Trucks and New Otto-Cycle...

  17. The Effect of Sample Preparation and Testing Procedure

    African Journals Online (AJOL)

    handling and disturbance. Revisions to sample preparation and testing procedures are considered necessary and are proposed in utilizing these soils for civil engineering purposes. It is concluded that the plasticity chart should be regarded as a guidance tool only for evaluating the likely properties of laterite soils. It should.

  18. The effect of sample preparation and testing procedure on the ...

    African Journals Online (AJOL)

    The effect of sample preparation and testing procedure on the geotechnical properties of tropically weathered residual laterite soils of Ethiopia. ... A combination of classification based on structure, mineralogical composition, and geo-morphological impact on soil formation together with conventional classification systems is ...

  19. Testing the alleged superiority of the indulgent parenting style among Spanish adolescents.

    Science.gov (United States)

    Osorio, Alfonso; González-Cámara, Marta

    2016-11-01

    While international studies have reported the superiority of the authoritative style (which combines parental involvement with demandingness), some studies in Spain and in other countries have found that the indulgent style (involvement without demandingness) might be just as good or even better. This study aims to discern whether the differences are cultural or methodological. 306 adolescents from high schools in Madrid and Valencia (Spain) answered a questionnaire that included two parenting style instruments (SOC-30 and PSI), together with a self-esteem scale (AF5) and a question on academic performance. Concordance between the two instruments assessing parenting styles was poor. When associating parenting styles (according to the SOC-30) with outcomes (self-esteem and academic achievement), results were similar to previous studies in Spain. But if we use the PSI, results were similar to studies in Anglophone countries: the authoritative style achieved the best outcomes. The discrepancies found between studies carried out in Spain and in Anglophone countries do not seem to be due to differences between cultures, but to methodological differences (i.e., differences between the instruments used). If we use the same instruments that were used in Anglophone countries, the most effective parenting style is still the authoritative.

  20. Disturbance induced by surface preparation on instrumented indentation test

    International Nuclear Information System (INIS)

    Li, Yugang; Kanouté, Pascale; François, Manuel

    2015-01-01

    Surface preparation, which may induce considerable sample disturbance, plays an important role in instrumented indentation test (IIT). In this study, the sample disturbance (mainly divided into residual stresses and plastic strain) induced by the surface preparation process of instrumented indentation test specimens were investigated with both experimental tests and numerical simulations. Grazing incidence X-ray diffractions (GIXRD) and uniaxial tensile tests were conducted for characterizing the residual stresses and high plastic strain in the top surface layers of a carefully mechanically polished indentation sample, which, in the present work, is made of commercially pure titanium. Instrumented indentation tests and the corresponding finite element simulations were performed as well. For comparison, a reference sample (carefully mechanically polished & electrolytically polished) which represents the raw material was prepared and tested. Results showed that a careful mechanical polishing procedure can effectively reduce the level of residual stresses induced by this process. However, the high plastic strain in the surface region imposed by the polishing process is significant. The induced plastic strain can affect a depth up to 5 µm, which is deeper than the maximum penetration depth h max (3 µm) used for the instrumented indentation tests. In the near surface layer (in the range of depth about 350 nm), the plastic strain levels are fairly high. In the very top layer, the plastic strain was even estimated to reach more than 60%. The simultaneous use of indentation tests and numerical simulations showed that the existence of high plastic strain in the surface region will make the load vs depth (P–h) curve shift upwards, the contact hardness (H) increase and the contact stiffness (S) decrease

  1. Individual differences in brain structure and resting brain function underlie cognitive styles: evidence from the Embedded Figures Test.

    Science.gov (United States)

    Hao, Xin; Wang, Kangcheng; Li, Wenfu; Yang, Wenjing; Wei, Dongtao; Qiu, Jiang; Zhang, Qinglin

    2013-01-01

    Cognitive styles can be characterized as individual differences in the way people perceive, think, solve problems, learn, and relate to others. Field dependence/independence (FDI) is an important and widely studied dimension of cognitive styles. Although functional imaging studies have investigated the brain activation of FDI cognitive styles, the combined structural and functional correlates with individual differences in a large sample have never been investigated. In the present study, we investigated the neural correlates of individual differences in FDI cognitive styles by analyzing the correlations between Embedded Figures Test (EFT) score and structural neuroimaging data [regional gray matter volume (rGMV) was assessed using voxel-based morphometry (VBM)]/functional neuroimaging data [resting-brain functions were measured by amplitude of low-frequency fluctuation (ALFF)] throughout the whole brain. Results showed that the increased rGMV in the left inferior parietal lobule (IPL) was associated with the EFT score, which might be the structural basis of effective local processing. Additionally, a significant positive correlation between ALFF and EFT score was found in the fronto-parietal network, including the left inferior parietal lobule (IPL) and the medial prefrontal cortex (mPFC). We speculated that the left IPL might be associated with superior feature identification, and mPFC might be related to cognitive inhibition of global processing bias. These results suggested that the underlying neuroanatomical and functional bases were linked to the individual differences in FDI cognitive styles and emphasized the important contribution of superior local processing ability and cognitive inhibition to field-independent style.

  2. Does the Cognitive Reflection Test actually capture heuristic versus analytic reasoning styles in older adults?

    Science.gov (United States)

    Hertzog, Christopher; Smith, R Marit; Ariel, Robert

    2018-01-01

    Background/Study Context: This study evaluated adult age differences in the original three-item Cognitive Reflection Test (CRT; Frederick, 2005, The Journal of Economic Perspectives, 19, 25-42) and an expanded seven-item version of that test (Toplak et al., 2013, Thinking and Reasoning, 20, 147-168). The CRT is a numerical problem-solving test thought to capture a disposition towards either rapid, intuition-based problem solving (Type I reasoning) or a more thoughtful, analytical problem-solving approach (Type II reasoning). Test items are designed to induce heuristically guided errors that can be avoided if using an appropriate numerical representation of the test problems. We evaluated differences between young adults and old adults in CRT performance and correlates of CRT performance. Older adults (ages 60 to 80) were paid volunteers who participated in experiments assessing age differences in self-regulated learning. Young adults (ages 17 to 35) were students participating for pay as part of a project assessing measures of critical thinking skills or as a young comparison group in the self-regulated learning study. There were age differences in the number of CRT correct responses in two independent samples. Results with the original three-item CRT found older adults to have a greater relative proportion of errors based on providing the intuitive lure. However, younger adults actually had a greater proportion of intuitive errors on the long version of the CRT, relative to older adults. Item analysis indicated a much lower internal consistency of CRT items for older adults. These outcomes do not offer full support for the argument that older adults are higher in the use of a "Type I" cognitive style. The evidence was also consistent with an alternative hypothesis that age differences were due to lower levels of numeracy in the older samples. Alternative process-oriented evaluations of how older adults solve CRT items will probably be needed to determine

  3. G-Tunnel pressurized slot-testing preparations

    International Nuclear Information System (INIS)

    Zimmerman, R.M.; Sifre-Soto, C.; Mann, K.L.; Bellman, R.A. Jr.; Luker, S.; Dodds, D.J.

    1992-04-01

    Designers and analysts of radioactive waste repositories must be able to predict the mechanical behavior of the host rock. Sandia National laboratories elected to conduct a development program on pressurized slot testing and featured (1) development of an improved method to cut slots using a chain saw with diamond-tipped cutters, (2) measurements useful for determining in situ stresses normal to slots, (3) measurements applicable for determining the in situ modulus of deformation parallel to a drift surface, and (4) evaluations of the potentials of pressurized slot strength testing. This report describes the preparations leading to the measurements and evaluations

  4. Choice, Rights, and Virtue: Prenatal Testing and Styles of Moral Reasoning in Aotearoa/New Zealand.

    Science.gov (United States)

    Fitzgerald, Ruth P; Legge, Michael; Park, Julie

    2015-09-01

    Using a Foucauldian biopower analytic, this article combines insights from several ethnographic research projects around the moral reasoning styles underpinning debates over selective reproductive technologies in Aotearoa/New Zealand. We show that divergent or shared public, private, state, individual, and community moral reasoning styles become highly politicized truth discourses that have the potential to, and at times do, affect one another, modifying a dominant, state-supported, principal-based bioethics framework. The styles of moral reasoning that we identify pivot on an aspirational cultural ideal of the provision of choice to citizens, which is taken as an appropriate position from which to regulate selective reproductive technologies. © 2015 by the American Anthropological Association.

  5. Exploring Antecedents of Performance Differences on Visual and Verbal Test Items: Learning Styles versus Aptitude

    Science.gov (United States)

    Bacon, Donald R.; Hartley, Steven W.

    2015-01-01

    Many educators and researchers have suggested that some students learn more effectively with visual stimuli (e.g., pictures, graphs), whereas others learn more effectively with verbal information (e.g., text) (Felder & Brent, 2005). In two studies, the present research seeks to improve popular self-reported (indirect) learning style measures…

  6. Investigation of the homogeneity of methacrylate allergens in commercially available patch test preparations

    DEFF Research Database (Denmark)

    Mose, Kristian Fredløv; Andersen, Klaus Ejner; Christensen, Lars Porskjaer

    2013-01-01

    The homogeneity of methacrylates in commercial patch test preparations has not yet been investigated. Inhomogeneous patch test preparations may give rise to false-negative or false-positive patch test results in patients suspected of having methacrylate allergy....

  7. 46 CFR 61.05-5 - Preparation of boilers for inspection and test.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 2 2010-10-01 2010-10-01 false Preparation of boilers for inspection and test. 61.05-5... PERIODIC TESTS AND INSPECTIONS Tests and Inspections of Boilers § 61.05-5 Preparation of boilers for... preparing the boilers for the hydrostatic test, they shall be filled with water at not less than 70 °F. and...

  8. Validating the Thinking Styles Inventory-Revised II among Chinese university students with hearing impairment through test accommodations.

    Science.gov (United States)

    Cheng, Sanyin; Zhang, Li-Fang

    2014-01-01

    The present study pioneered in adopting test accommodations to validate the Thinking Styles Inventory-Revised II (TSI-R2; Sternberg, Wagner, & Zhang, 2007) among Chinese university students with hearing impairment. A series of three studies were conducted that drew their samples from the same two universities, in which accommodating test directions (N = 213), combining test directions with language accommodations from students' perspectives (N = 366), and integrating test directions with language accommodations from teachers' perspectives (N = 129) were used. The accommodated TSI-R2 generally indicated acceptable internal scale reliabilities and factorial validity for Chinese university students with hearing loss. Limitations in relation to the study participants are discussed, as well as test accommodations and the significance and implications of the study.

  9. Teacher Competency in Classroom Testing, Measurement Preparation, and Classroom Testing Practices.

    Science.gov (United States)

    Newman, Dorothy C.; Stallings, William M.

    An assessment instrument and a questionnaire (Appendices A and B) were developed to determine how well teachers understand classroom testing principles and to gain information on the measurement preparation and classroom practices of teachers. Two hundred ninety-four inservice teachers, grades 1 through 12, from three urban school systems in…

  10. The preparation of Dermatophilus congolensis antigen and its testing by means of immunodiffusion test and electrophoresis

    OpenAIRE

    Djaenudin Gholib; Subiyanto

    1998-01-01

    The filtrate antigen ofDermatophilus congolensis was prepared based on the Makinde method, whereas the whole cell antigen was based on the Bida and Kelley method. Filtrate antigen of Dermatophilus congolensis has been tested with positive serum from experimental animals, guinea pigs and sheep by means of immurrodiffitsion test and electrophoresis . Positive serum was produced by inoculation of whole cell antigen of D. congolensis to the animals . The results showed that the immunodiffusion te...

  11. Entrepreneurs` Cognitive and Decision Making Styles

    Directory of Open Access Journals (Sweden)

    Mahmoud Motvaseli

    2015-12-01

    Full Text Available The main purpose of this study is to explore the relation between decision-making styles which are measured by the General decision-making style (GDMS test and information processing styles which are often termed cognitive styles and are, in this study, measured by Cognitive Style Inventory. The authors directed a survey research on 162 Iranian students. Structural equation modeling techniques were used to measure the impact of cognitive styles on decision-making styles. The authors found that cognitive styles have a positive impact on decision-making styles. In spite of the abundant research on factors that affect decision-making styles, few researches have tested the relationship between cognitive styles and decision-making styles. This study examines the impact of cognitive styles on decision-making styles in Iran. This study, like most research paper studies, cannot easily be generalized. Furthermore, the results of this study could be affected by economic conditions.

  12. Computer Forensic Function Testing: Media Preparation, Write Protection And Verification

    Directory of Open Access Journals (Sweden)

    Yinghua (David Guo

    2010-06-01

    Full Text Available Normal 0 false false false EN-US JA AR-SA The growth in the computer forensic field has created a demand for new software (or increased functionality to existing software and a means to verify that this software is truly forensic i.e. capable of meeting the requirements of the trier of fact. In this work, we review our previous work---a function oriented testing framework for validation and verification of computer forensic tools. This framework consists of three parts: function mapping, requirements specification and reference set development. Through function mapping, we give a scientific and systemical description of the fundamentals of computer forensic discipline, i.e. what functions are needed in the computer forensic investigation process. We focus this paper on the functions of media preparation, write protection and verification. Specifically, we complete the function mapping of these functions and specify their requirements. Based on this work, future work can be conducted to develop corresponding reference sets to test any tools that possess these functions.

  13. 40 CFR 205.160-2 - Test sample selection and preparation.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Test sample selection and preparation... sample selection and preparation. (a) Vehicles comprising the sample which are required to be tested... maintained in any manner unless such preparation, tests, modifications, adjustments or maintenance are part...

  14. Play Behavior in Wolves: Using the '50:50' Rule to Test for Egalitarian Play Styles.

    Science.gov (United States)

    Essler, Jennifer L; Cafazzo, Simona; Marshall-Pescini, Sarah; Virányi, Zsófia; Kotrschal, Kurt; Range, Friederike

    2016-01-01

    Social play is known as a cooperative interaction between individuals involving multiple mechanisms. However, the extent to which the equality of individuals' play styles affects the interaction has not been studied in many species. Dyadic play between wolf puppies, as well as between puppies and adults, was studied to investigate both self-handicapping and offensive behaviors to determine the extent to which wolves engage in play styles where one individual does not dominate the play. Our results did not support the hypothesized '50:50' rule, which suggests that more advantaged individuals should show higher rates of self-handicapping behaviors in order to facilitate play with others. Adult wolves performed significantly less self-handicapping behaviors than their puppy partners, and they performed significantly more offensive behaviors than their puppy partners. While the '50:50' rule was not supported at any time during our study period, dyads consisting of two puppies had significantly more equal play than dyads consisting of one puppy and one adult. These results suggest that wolf puppies are more likely to play on equal terms with similarly-aged play partners, while the dominance status of the partners dictates offensive and self-handicapping behaviors between animals of different ages.

  15. Play Behavior in Wolves: Using the '50:50' Rule to Test for Egalitarian Play Styles.

    Directory of Open Access Journals (Sweden)

    Jennifer L Essler

    Full Text Available Social play is known as a cooperative interaction between individuals involving multiple mechanisms. However, the extent to which the equality of individuals' play styles affects the interaction has not been studied in many species. Dyadic play between wolf puppies, as well as between puppies and adults, was studied to investigate both self-handicapping and offensive behaviors to determine the extent to which wolves engage in play styles where one individual does not dominate the play. Our results did not support the hypothesized '50:50' rule, which suggests that more advantaged individuals should show higher rates of self-handicapping behaviors in order to facilitate play with others. Adult wolves performed significantly less self-handicapping behaviors than their puppy partners, and they performed significantly more offensive behaviors than their puppy partners. While the '50:50' rule was not supported at any time during our study period, dyads consisting of two puppies had significantly more equal play than dyads consisting of one puppy and one adult. These results suggest that wolf puppies are more likely to play on equal terms with similarly-aged play partners, while the dominance status of the partners dictates offensive and self-handicapping behaviors between animals of different ages.

  16. Entrepreneurs` Cognitive and Decision Making Styles

    OpenAIRE

    Mahmoud Motvaseli; Fariba Lotfizadeh

    2015-01-01

    The main purpose of this study is to explore the relation between decision-making styles which are measured by the General decision-making style (GDMS) test and information processing styles which are often termed cognitive styles and are, in this study, measured by Cognitive Style Inventory. The authors directed a survey research on 162 Iranian students. Structural equation modeling techniques were used to measure the impact of cognitive styles on decision-making styles. The authors found th...

  17. Evaluation of antioxidative properties of Geranium macrorrhizum and Potentilla fructiosa extracts in Dutch style fermented sausages

    NARCIS (Netherlands)

    Miliauskas, G.; Mulder, E.; Linssen, J.P.H.; Houben, J.H.; Beek, van T.A.; Venskutonis, P.R.

    2007-01-01

    Antioxidative properties of Geranium macrorrhizum, Potentilla fruticosa and Rosmarinus officinalis (as a reference) extracts were evaluated in Dutch style fermented sausages. Extracts were incorporated into sausages during preparation. The sausages were subsequently fermented, tested and compared to

  18. Testing the applicability of the family management style framework to chinese families.

    Science.gov (United States)

    Zhang, Ying; Wei, Min; Han, Hae-Ra; Zhang, Yaqing; Shen, Nanping

    2013-08-01

    Family management is an important concept in caring for chronically ill children. The purpose of this study is to determine the applicability of the Family Management Style Framework for Chinese families with a child who has a chronic condition. The children ranged in age from 6 to 16 years. The structural equation modeling approach was utilized to examine the relationships among the contextual variables, the family management, the child, and the family functioning. A total of 538 caregivers from seven hospitals in China were included in this study. The final model adequately fitted the data. The predictor variables accounted for 23%, 26%, 7.8%, and 12% of the variance in the easy and the challenging parts of family management and the child and family unit, respectively. These findings indicated that the framework is applicable to Chinese families. This result reinforces the importance of interventions designed to enable caregivers to improve family management.

  19. Preparation and testing of corrosion and spallation-resistant coatings

    Energy Technology Data Exchange (ETDEWEB)

    Hurley, John P. [Univ. of North Dakota, Grand Forks, ND (United States); Cavalli, Matthew N. [Univ. of North Dakota, Grand Forks, ND (United States)

    2016-06-30

    its standard oxidation, spallation, and corrosion testing, which was scheduled for completion in the spring of 2016. However, because of commercial demands, the tests were not completed by the time of this report except some initial spallation tests at 1150°C. In those tests, several of the APMT plates separated from the CM247LC, likely because of the remaining aluminum oxide scale on the surface of the CM247LC. This implies that surface preparation may need to include machining to remove the oxide scale before bonding rather than just sandblasting. In previous tensile testing at 950°C, the breaks in the tensile samples always occurred in the APMT and not at the joints. Gasifier sampling was completed to determine what types of trace contaminants may occur in cleaned and combusted syngas and that could lead to corrosion or deposition in turbines firing coal syngas. The sampling was done from a pressurized fluidized-bed gasifier and a pressurized entrained-flow gasifier. The particles captured on a filter from syngas were typically 0.2 to 0.5 μm in diameter, whereas those captured from the combusted syngas were slightly larger and more spherical. X-ray photoelectron spectroscopy done at Oak Ridge National Laboratory showed that the particles do not contain any metals and have an atomic composition almost identical to that of the polycarbonate filter. This indicates that the particles are primarily soot-based and not formed from volatilization of metals in the gasifiers.

  20. 40 CFR 1054.305 - How must I prepare and test my production-line engines?

    Science.gov (United States)

    2010-07-01

    ... production-line engines? 1054.305 Section 1054.305 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... EQUIPMENT Production-line Testing § 1054.305 How must I prepare and test my production-line engines? This section describes how to prepare and test production-line engines. You must assemble the test engine in a...

  1. Preparations for Mixed Waste Disposal at the Nevada Test Site

    International Nuclear Information System (INIS)

    Clark, D.K.; Perez, P.A.; Doyle, G.

    2006-01-01

    The Radioactive Waste Management Complex (RWMC) at the Nevada Test Site (NTS) is preparing for the receipt and disposal of low-level mixed waste (MV) generated within the U.S. Department of Energy (DOE) complex. The NTS maintains and develops disposal locations to accommodate various waste forms, and is engaged in developing verification and handling processes to ensure proper acceptance and disposal. Operations at the RWMC are focused on ensuring future disposal needs can be accommodated with a maximum benefit to risk ratio. This paper addresses the programmatic developments implemented at the NTS to accommodate the receipt, verification, and disposal of MW. The Radioactive Waste Acceptance Program (RWAP) has incorporated aspects of the Waste Analysis Plan (WAP) into the Nevada Test Site Waste Acceptance Criteria (NTSWAC). The verification program includes statistical sampling components that take into account waste form, program reliability, and other factors. The WAP allows for a conglomerate of verification techniques including visual examination, non-destructive examination, and chemical screening ensuring compliance with the NTSWAC. The WAP also provides for the acceptance of MW with most U.S. Environmental Protection Agency waste codes. The MW sent to the NTS for disposal must meet Land-Disposal Restriction standards. To support the verification processes outlined in the WAP, a Real-Time-Radiography (RTR) facility was constructed. Using a 450 keV, 5-mA tube-head system with a bridge and manipulator assembly, MW packages can undergo non-destructive examination (x-ray) at the RWMC. Prior to the NTS accepting the waste shipment, standard waste boxes, drums, and nominally sized bulk items can be manipulated on a cart and examined directly or skewed in real-time to ensure compliance with NTSWAC requirement s An existing MW disposal cell at the RWMC has been tailored to meet the requirements of a Category 2 non-reactor Nuclear Facility. In retrofitting an existing

  2. The preparation of Dermatophilus congolensis antigen and its testing by means of immunodiffusion test and electrophoresis

    Directory of Open Access Journals (Sweden)

    Djaenudin Gholib

    1998-10-01

    Full Text Available The filtrate antigen ofDermatophilus congolensis was prepared based on the Makinde method, whereas the whole cell antigen was based on the Bida and Kelley method. Filtrate antigen of Dermatophilus congolensis has been tested with positive serum from experimental animals, guinea pigs and sheep by means of immurrodiffitsion test and electrophoresis . Positive serum was produced by inoculation of whole cell antigen of D. congolensis to the animals . The results showed that the immunodiffusion test resulted in one and two precipitation lines with positive serum of sheep and guinea pigs respectively. Electrophoresis SDS-PAGE presented about 8 bands with molecular weight in the range from above 30 kD to more than 94 kD. The bands were then transferred into nitrocellulose membrane and gave positive reaction with positive serum from sheep.

  3. Food-related life styles in Australia: Testing of the MAPP food-related life style instrument in an Australian context

    DEFF Research Database (Denmark)

    Reid, Mike; Grunert, Klaus G.; Li, Elton

    As the global food marketing environment becomes more competitive, marketers will need to devise mechanisms for understanding and mapping changes in consumers' food-related attitudes and behaviours. Such knowledge is paramount in devising and adjusting marketing strategies, building superior market...... based assets, and creating a stronger consumer focus. This research employs the Food-Related Life Styles (FRL) instrument developed by Grunert, Brunsø & Bisp, (1993) to determine the validity of the instrument in an Australian context, to build an a better understanding of Australian food consumers...

  4. Stability testing of extemporaneous preparation of methyl salicylate ointment

    Directory of Open Access Journals (Sweden)

    H A Makeen

    2018-01-01

    Results: The shelf life (t90% of extemporaneously prepared methyl salicylate ointment was found to be 131 days at room temperature (25°C ± 5°C and 176 days in the refrigerator (2°C–8°C. Conclusion: The methyl salicylate present in extemporaneous ointment preparation is fairly stable at cool temperatures but shows faster degradation at higher temperature conditions. Therefore, it is recommended that an expiry date of 4 months can be safely mentioned when stored in cool.

  5. 46 CFR 61.30-5 - Preparation of thermal fluid heater for inspection and test.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 2 2010-10-01 2010-10-01 false Preparation of thermal fluid heater for inspection and... ENGINEERING PERIODIC TESTS AND INSPECTIONS Tests and Inspections of Fired Thermal Fluid Heaters § 61.30-5 Preparation of thermal fluid heater for inspection and test. For visual inspection, access plates and manholes...

  6. Effects of Targeted Test Preparation on Scores of Two Tests of Oral English as a Second Language

    Science.gov (United States)

    Farnsworth, Tim

    2013-01-01

    This study investigated the effect of targeted test preparation, or coaching, on oral English as a second language test scores. The tests in question were the Basic English Skills Test Plus (BEST Plus), a scripted oral interview published by the Center for Applied Linguistics, and the Versant English Test (VET), a computer-administered and…

  7. Astronauts Cooper and Conrad prepare cameras during visual acuity tests

    Science.gov (United States)

    1965-01-01

    Astronauts L. Gordon Cooper Jr. (left), command pilot, and Charles Conrad Jr., pilot, the prime crew of the Gemini 5 space flight, prepare their cameras while aboard a C-130 aircraft flying near Laredo. The two astronauts are taking part in a series of visual acuity experiments to aid them in learning to identify known terrestrial features under controlled conditions.

  8. 49 CFR 173.462 - Preparation of specimens for testing.

    Science.gov (United States)

    2010-10-01

    ...-GENERAL REQUIREMENTS FOR SHIPMENTS AND PACKAGINGS Class 7 (Radioactive) Materials § 173.462 Preparation of.... (b) Any deviation found under paragraph (a) of this section from the specified design must be... the packaging must be clearly specified. (d) The external features of the specimen must be clearly...

  9. Style popularity and the comovement of stocks

    OpenAIRE

    Wouters, T.; Plantinga, A.

    2006-01-01

    We examine to what extent the popularity of an investment style can be attributed to style investing. The style investing hypothesis predicts that assets in the same style show strong comovement with respect to their underlying fundamentals and that reclassifying assets into a new style raises its correlation with that style. We test this prediction by studying how comovement varies with proxies of popularity. We use different kinds of data, such as data on stocks, mutual funds, IPO?s and fin...

  10. Demystifying APA style.

    Science.gov (United States)

    Cuddy, Claudia M

    2002-01-01

    Many nursing schools and health care journals have adopted the Publication Manual of the American Psychological Association (APA stylebook) as their guide to achieve uniformity and consistency in manuscript preparation as well as in usage and writing style. Published in 2001, the fifth edition of the APA stylebook contains 440 pages and can overwhelm someone who tries to use it for the first time. This article delineates main points in the areas of manuscript preparation, reference lists, in-text citations, and style choices.

  11. Feasibility of Turing-Style Tests for Autonomous Aerial Vehicle "Intelligence"

    Science.gov (United States)

    Young, Larry A.

    2007-01-01

    A new approach is suggested to define and evaluate key metrics as to autonomous aerial vehicle performance. This approach entails the conceptual definition of a "Turing Test" for UAVs. Such a "UAV Turing test" would be conducted by means of mission simulations and/or tailored flight demonstrations of vehicles under the guidance of their autonomous system software. These autonomous vehicle mission simulations and flight demonstrations would also have to be benchmarked against missions "flown" with pilots/human-operators in the loop. In turn, scoring criteria for such testing could be based upon both quantitative mission success metrics (unique to each mission) and by turning to analog "handling quality" metrics similar to the well-known Cooper-Harper pilot ratings used for manned aircraft. Autonomous aerial vehicles would be considered to have successfully passed this "UAV Turing Test" if the aggregate mission success metrics and handling qualities for the autonomous aerial vehicle matched or exceeded the equivalent metrics for missions conducted with pilots/human-operators in the loop. Alternatively, an independent, knowledgeable observer could provide the "UAV Turing Test" ratings of whether a vehicle is autonomous or "piloted." This observer ideally would, in the more sophisticated mission simulations, also have the enhanced capability of being able to override the scripted mission scenario and instigate failure modes and change of flight profile/plans. If a majority of mission tasks are rated as "piloted" by the observer, when in reality the vehicle/simulation is fully- or semi- autonomously controlled, then the vehicle/simulation "passes" the "UAV Turing Test." In this regards, this second "UAV Turing Test" approach is more consistent with Turing s original "imitation game" proposal. The overall feasibility, and important considerations and limitations, of such an approach for judging/evaluating autonomous aerial vehicle "intelligence" will be discussed from a

  12. Development and testing of a cross-culturally valid instrument: food-related life style

    DEFF Research Database (Denmark)

    Brunsø, Karen; Grunert, Klaus G.

    1995-01-01

    -culturaly valid way. To this end we have developed a pool of 202 items, collected data in three countries, and have constructed scales based on cross-culturally stable factor patterns. We have then applie set of scales to a fourth country, in order to further test the cross-cultural validity of the instrument....

  13. Test Preparation in the Accountability Era: Toward a Learning-Oriented Approach

    Science.gov (United States)

    Gebril, Atta

    2018-01-01

    The article introduces a learning-oriented approach to test preparation that could help in easing the tension between learning and assessment. The first part of the article discusses the different concepts that are usually used in the context of test preparation. The second section reports on the literature pertaining to the effects of test…

  14. 40 CFR 205.171-2 - Test exhaust system sample selection and preparation.

    Science.gov (United States)

    2010-07-01

    ... Systems § 205.171-2 Test exhaust system sample selection and preparation. (a)(1) Exhaust systems... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Test exhaust system sample selection and preparation. 205.171-2 Section 205.171-2 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY...

  15. Identity style and coping strategies.

    Science.gov (United States)

    Berzonsky, M D

    1992-12-01

    This study examined the relationship between identity style and strategies used to cope with stressors that potentially threaten one's sense of identity. Identity style refers to differences in the way individuals construct and revise or maintain their sense of identity. An informational style involves actively seeking out, evaluating, and utilizing self-relevant information. A normative style highlights the expectations and standards of significant others. A diffuse/avoidant style is characterized by procrastination and situation-specific reactions. Late-adolescent college subjects were administered measures of identity style, ways of coping with academic stressors, and test anxiety. Within this self-as-student context, subjects with diffuse and normative identity styles employed avoidant-oriented coping strategies (wishful thinking, distancing, and tension reduction). An informational style was associated with deliberate, problem-focused coping. Findings are discussed in terms of a process model of identity development.

  16. 46 CFR 170.185 - Stability test preparations.

    Science.gov (United States)

    2010-10-01

    ... test: (a) The vessel must be as complete as practicable at the time of the test. (b) Each tank vessel...) The water depth at the mooring site must provide ample clearance against grounding. (e) Each mooring... that result in acceptable accuracy in calculating the center of gravity and displacement of the unit...

  17. A Study on the English Language Teachers' Preparation of Tests

    Science.gov (United States)

    Saricoban, Arif

    2011-01-01

    In this article the researcher has examined the current situation in test (a) construction: designing, structuring, developing, (b) administering, and (c) assessing the foreign language tests to see if we are still at the same point (traditional) and has given some suggestions on this indispensable issue. To collect the necessary data the 4th year…

  18. Preparation

    Directory of Open Access Journals (Sweden)

    M.M. Dardir

    2014-03-01

    Full Text Available Some hexanamide-mono and di-linoleniate esters were prepared by the reaction of linolenic acid and hexanamide (derived from the reaction of hexanoic acid and diethanolamine. The chemical structure for the newly prepared hexanamide-mono and di-linoleniate esters were elucidated using elemental analysis, (FTIR, H 1NMR and chemical ionization mass spectra (CI/Ms spectroscopic techniques. The results of the spectroscopic analysis indicated that they were prepared through the right method and they have high purity. The new prepared esters have high biodegradability and lower toxicity (environmentally friendly so they were evaluated as a synthetic-based mud (ester-based mud for oil-well drilling fluids. The evaluation included study of the rheological properties, filtration and thermal properties of the ester based-muds formulated with the newly prepared esters compared to the reference commercial synthetic-based mud.

  19. Rats eat a cafeteria-style diet to excess but eat smaller amounts and less frequently when tested with chow.

    Directory of Open Access Journals (Sweden)

    Timothy South

    Full Text Available BACKGROUND: Obesity is associated with excessive consumption of palatable, energy dense foods. The present study used an animal model to examine feeding patterns during exposure to and withdrawal from these foods. METHODS: Male Sprague Dawley rats were exposed to standard lab chow only (Chow rats or a range of cafeteria-style foods eaten by people (Caf rats. After 1, 4, 7 and 10 weeks of diet in their home cage, rats were subjected to 24-hour test sessions in a Comprehensive Lab Animal Monitoring System (CLAMS. In the first two test sessions, Chow rats were exposed to standard lab chow only while Caf rats were exposed to a biscuit and high-fat chow diet. In the final two test sessions, half the rats in each group were switched to the opposing diet. In each session we recorded numbers of bouts, energy consumed per bout, and intervals between bouts across the entire 24 hours. RESULTS: Relative to Chow rats, Caf rats initiated fewer bouts but consumed more energy per bout; however, their motivation to feed in the CLAMS declined over time, which was attributed to reduced variety of foods relative to their home cage diet. This decline in motivation was especially pronounced among Caf rats switched from the palatable CLAMS diet to standard lab chow only: the reduced energy intake in this group was due to a modest decline in bout frequency and a dramatic decline in bout size. CONCLUSIONS: Exposure to a cafeteria-diet, rich in variety, altered feeding patterns, reduced rats' motivation to consume palatable foods in the absence of variety, and further diminished motivation to feed when palatable foods were withdrawn and replaced with chow. Hence, variety is a key factor in driving excessive consumption of energy dense foods, and therefore, excessive weight gain.

  20. Tensile-Creep Test Specimen Preparation Practices of Surface Support Liners

    Science.gov (United States)

    Guner, Dogukan; Ozturk, Hasan

    2017-12-01

    Ground support has always been considered as a challenging issue in all underground operations. Many forms of support systems and supporting techniques are available in the mining/tunnelling industry. In the last two decades, a new polymer based material, Thin Spray-on Liner (TSL), has attained a place in the market as an alternative to the current areal ground support systems. Although TSL provides numerous merits and has different application purposes, the knowledge on mechanical properties and performance of this material is still limited. In laboratory studies, since tensile rupture is the most commonly observed failure mechanism in field applications, researchers have generally studied the tensile testing of TSLs with modification of American Society for Testing and Materials (ASTM) D-638 standards. For tensile creep testing, specimen preparation process also follows the ASTM standards. Two different specimen dimension types (Type I, Type IV) are widely preferred in TSL tensile testing that conform to the related standards. Moreover, molding and die cutting are commonly used specimen preparation techniques. In literature, there is a great variability of test results due to the difference in specimen preparation techniques and practices. In this study, a ductile TSL product was tested in order to investigate the effect of both specimen preparation techniques and specimen dimensions under 7-day curing time. As a result, ultimate tensile strength, tensile yield strength, tensile modulus, and elongation at break values were obtained for 4 different test series. It is concluded that Type IV specimens have higher strength values compared to Type I specimens and moulded specimens have lower results than that of prepared by using die cutter. Moreover, specimens prepared by molding techniques have scattered test results. Type IV specimens prepared by die cutter technique are suggested for preparation of tensile test and Type I specimens prepared by die cutter technique

  1. 40 CFR 1065.925 - PEMS preparation for field testing.

    Science.gov (United States)

    2010-07-01

    ...) Verify that ambient conditions at the start of the test are within the limits specified in the standard-setting part. Continue to monitor these values to determine if ambient conditions exceed the limits during... standard. (2) Zero the HC analyzers using a zero gas or ambient air introduced at the analyzer port. When...

  2. Leadership Styles

    Science.gov (United States)

    Val, Carlin; Kemp, Jess

    2012-01-01

    This study examines how a group's dynamic changes under the influence of different leadership styles, and determines what leadership style works best in a large group expedition. The main question identified was "What roles can a leader play in affecting the dynamic of a large group while partaking in a field expedition?" The following…

  3. Goethite Bench-scale and Large-scale Preparation Tests

    Energy Technology Data Exchange (ETDEWEB)

    Josephson, Gary B.; Westsik, Joseph H.

    2011-10-23

    The Hanford Waste Treatment and Immobilization Plant (WTP) is the keystone for cleanup of high-level radioactive waste from our nation's nuclear defense program. The WTP will process high-level waste from the Hanford tanks and produce immobilized high-level waste glass for disposal at a national repository, low activity waste (LAW) glass, and liquid effluent from the vitrification off-gas scrubbers. The liquid effluent will be stabilized into a secondary waste form (e.g. grout-like material) and disposed on the Hanford site in the Integrated Disposal Facility (IDF) along with the low-activity waste glass. The major long-term environmental impact at Hanford results from technetium that volatilizes from the WTP melters and finally resides in the secondary waste. Laboratory studies have indicated that pertechnetate ({sup 99}TcO{sub 4}{sup -}) can be reduced and captured into a solid solution of {alpha}-FeOOH, goethite (Um 2010). Goethite is a stable mineral and can significantly retard the release of technetium to the environment from the IDF. The laboratory studies were conducted using reaction times of many days, which is typical of environmental subsurface reactions that were the genesis of this new process. This study was the first step in considering adaptation of the slow laboratory steps to a larger-scale and faster process that could be conducted either within the WTP or within the effluent treatment facility (ETF). Two levels of scale-up tests were conducted (25x and 400x). The largest scale-up produced slurries of Fe-rich precipitates that contained rhenium as a nonradioactive surrogate for {sup 99}Tc. The slurries were used in melter tests at Vitreous State Laboratory (VSL) to determine whether captured rhenium was less volatile in the vitrification process than rhenium in an unmodified feed. A critical step in the technetium immobilization process is to chemically reduce Tc(VII) in the pertechnetate (TcO{sub 4}{sup -}) to Tc(Iv)by reaction with the

  4. Acquisition and preparation of specimens of rock for large-scale testing

    International Nuclear Information System (INIS)

    Watkins, D.J.

    1981-01-01

    The techniques used for acquisition and preparation of large specimens of rock for laboratory testing depend upon the location of the specimen, the type of rock and the equipment available at the sampling site. Examples are presented to illustrate sampling and preparation techniques used for two large cylindrical samples of granitic material, one pervasively fractured and one containing a single fracture

  5. Leadership styles in nursing.

    Science.gov (United States)

    Cope, Vicki; Murray, Melanie

    2017-06-21

    Nurses are often asked to think about leadership, particularly in times of rapid change in healthcare, and where questions have been raised about whether leaders and managers have adequate insight into the requirements of care. This article discusses several leadership styles relevant to contemporary healthcare and nursing practice. Nurses who are aware of leadership styles may find this knowledge useful in maintaining a cohesive working environment. Leadership knowledge and skills can be improved through training, where, rather than having to undertake formal leadership roles without adequate preparation, nurses are able to learn, nurture, model and develop effective leadership behaviours, ultimately improving nursing staff retention and enhancing the delivery of safe and effective care.

  6. PREPARATION AND TESTING OF CORROSIONAND SPALLATION-RESISTANT COATINGS

    Energy Technology Data Exchange (ETDEWEB)

    Hurley, John

    2014-11-01

    This Energy & Environmental Research Center (EERC) project is designed to determine if plating APMT®, a specific highly oxidation-resistant oxide dispersion-strengthened FeCrAl alloy made by Kanthal, onto nickel-based superalloy turbine parts is a viable method for substantially improving the lifetimes and maximum use temperatures of the parts. The method for joining the APMT plate to the superalloys is called evaporative metal bonding and involves placing a thin foil of zinc (Zn) between the plate and the superalloy, clamping them together, and heating in an atmosphere-controlled furnace. Upon heating, the Zn melts and dissolves the oxide skins of the alloys at the bond line, allowing the two alloys to diffuse into each other. The Zn then diffuses through the alloys and evaporates from their surfaces. Laboratory testing to determine the diffusion rate of Zn through the alloys has been completed. However, an analytical solution does not exist to model the diffusion of zinc through the alloys. For this reason, a finite difference algorithm using MATLAB was developed. It makes use of the hopscotch algorithm. The model allows the user to specify the dimensions of the metal parts, the Zn concentration at the bondline, the mesh size, time step, and Zn diffusivity. The experimentally measured values of diffusivity for Zn in APMT and Rene 80/CM 247LC are approximately 2.7 × 10-12 and 4 × 10-14 m2/s, respectively. While the qualitative behavior of the model appears correct, a comparison of the diffusion predictions with the experimental results from earlier in the project indicates that the expected Zn concentration is significantly higher than that measured experimentally. The difference depends on the assumed initial concentration, which is difficult to quantify exactly under experimental conditions for t = 0. In addition to the diffusion work, the coefficients of thermal expansions were determined for each of the alloys as a function of temperature. This information

  7. Preparation and testing of corrosion and spallation-resistant coatings

    Energy Technology Data Exchange (ETDEWEB)

    Hurley, John

    2012-09-30

    This Energy & Environmental Research Center (EERC) project is designed to determine if plating APMT, a specific highly oxidation-resistant oxide dispersion-strengthened FeCrAl alloy made by Kanthal, onto nickel-based superalloy turbine parts is a viable method for substantially improving the lifetimes and maximum use temperatures of the parts. The method for joining the APMT plate to the superalloys is called evaporative metal bonding. It involves placing a thin foil of zinc (Zn) between the plate and the superalloy, clamping them together, and heating in an atmosphere-controlled furnace. Upon heating, the Zn melts and dissolves the oxide skins of the alloys at the bond line, allowing the two alloys to diffuse into each other. The Zn then diffuses through the alloys and evaporates from their surfaces. Laboratory testing has shown that the diffusion rate of Zn through the FeCrAl alloy is much faster than through the nickel superalloys. This means that the FeCrAl will serve as a sink for the Zn bonding alloy during the evaporative metal bonding process. Also, the testing has shown that the Zn diffusion mechanism is bulk diffusion, and not intergranular. This is a surprise. However, it means that quantification of the Zn diffusivities in these samples will be significantly simpler than would have been the case if grain boundary diffusion dominated. In addition to the laboratory testing, gas impinger and particulate samples are being collected from a combustor firing syngas and natural gas to determine what types of microcontaminants may reach a turbine firing syngas. The syngas is created in one of two different pilot-scale pressurized coal gasifiers. The initial analysis of the impinger solutions was for standard U.S. Environmental Protection Agency (EPA) Method 29 determination of hazardous metals and did not include major element analysis. When syngas is fired, the amount of Mn in the combustor gas increases substantially. Halogens (Br2 and Cl2) and hydrogen

  8. High Sodium Simulant Testing To Support SB8 Sludge Preparation

    Energy Technology Data Exchange (ETDEWEB)

    Newell, J. D.

    2012-09-19

    Scoping studies were completed for high sodium simulant SRAT/SME cycles to determine any impact to CPC processing. Two SRAT/SME cycles were performed with simulant having sodium supernate concentration of 1.9M at 130% and 100% of the Koopman Minimum Acid requirement. Both of these failed to meet DWPF processing objectives related to nitrite destruction and hydrogen generation. Another set of SRAT/SME cycles were performed with simulant having a sodium supernate concentration of 1.6M at 130%, 125%, 110%, and 100% of the Koopman Minimum Acid requirement. Only the run at 110% met DWPF processing objectives. Neither simulant had a stoichiometric factor window of 30% between nitrite destruction and excessive hydrogen generation. Based on the 2M-110 results it was anticipated that the 2.5M stoichiometric window for processing would likely be smaller than from 110-130%, since it appeared that it would be necessary to increase the KMA factor by at least 10% above the minimum calculated requirement to achieve nitrite destruction due to the high oxalate content. The 2.5M-130 run exceeded the DWPF hydrogen limits in both the SRAT and SME cycle. Therefore, testing of this wash endpoint was halted. This wash endpoint with this minimum acid requirement and mercury-noble metal concentration profile appears to be something DWPF should not process due to an overly narrow window of stoichiometry. The 2M case was potentially processable in DWPF, but modifications would likely be needed in DWPF such as occasionally accepting SRAT batches with undestroyed nitrite for further acid addition and reprocessing, running near the bottom of the as yet ill-defined window of allowable stoichiometric factors, potentially extending the SRAT cycle to burn off unreacted formic acid before transferring to the SME cycle, and eliminating formic acid additions in the frit slurry.

  9. High Sodium Simulant Testing To Support SB8 Sludge Preparation

    International Nuclear Information System (INIS)

    Newell, J. D.

    2012-01-01

    Scoping studies were completed for high sodium simulant SRAT/SME cycles to determine any impact to CPC processing. Two SRAT/SME cycles were performed with simulant having sodium supernate concentration of 1.9M at 130% and 100% of the Koopman Minimum Acid requirement. Both of these failed to meet DWPF processing objectives related to nitrite destruction and hydrogen generation. Another set of SRAT/SME cycles were performed with simulant having a sodium supernate concentration of 1.6M at 130%, 125%, 110%, and 100% of the Koopman Minimum Acid requirement. Only the run at 110% met DWPF processing objectives. Neither simulant had a stoichiometric factor window of 30% between nitrite destruction and excessive hydrogen generation. Based on the 2M-110 results it was anticipated that the 2.5M stoichiometric window for processing would likely be smaller than from 110-130%, since it appeared that it would be necessary to increase the KMA factor by at least 10% above the minimum calculated requirement to achieve nitrite destruction due to the high oxalate content. The 2.5M-130 run exceeded the DWPF hydrogen limits in both the SRAT and SME cycle. Therefore, testing of this wash endpoint was halted. This wash endpoint with this minimum acid requirement and mercury-noble metal concentration profile appears to be something DWPF should not process due to an overly narrow window of stoichiometry. The 2M case was potentially processable in DWPF, but modifications would likely be needed in DWPF such as occasionally accepting SRAT batches with undestroyed nitrite for further acid addition and reprocessing, running near the bottom of the as yet ill-defined window of allowable stoichiometric factors, potentially extending the SRAT cycle to burn off unreacted formic acid before transferring to the SME cycle, and eliminating formic acid additions in the frit slurry

  10. Tests of English Language as Significant Thresholds for College-Bound Chinese and the Washback of Test-Preparation

    Science.gov (United States)

    Matoush, Marylou M.; Fu, Danling

    2012-01-01

    Tests of English language mark significantly high thresholds for all college-bound students in the People's Republic of China. Many Chinese students hope to seek their fortunes at universities in the United States, or other English speaking countries. These students spend long hours, year after year, in test-preparation centres in order to develop…

  11. Characterizing the learning styles and testing the science-related attitudes of African American middle school students: Implications for the underrepresentation of African Americans in the sciences

    Science.gov (United States)

    Perine, Donald Ray

    African Americans, Hispanics, Native Americans and women are underrepresented among the population of scientists and science teachers in the United States. Specifically, the shortage of African Americans teaching math and science at all levels of the educational process and going into the many science-related fields is manifested throughout the entire educational and career structure of our society. This shortage exists when compared to the total population of African Americans in this country, the population of African American students, and to society's demand for more math and science teachers and professionals of all races. One suggestion to address this problem is to update curricular and instructional programs to accommodate the learning styles of African Americans from elementary to graduate school. There is little in the published literature to help us understand the learning styles of African American middle school students and how they compare to African American adults who pursue science careers. There is also little published data to help inform us about the relationship between learning styles of African American middle school students and their attitudes toward science. The author used a learning styles inventory instrument to identify the learning style preferences of the African American students and adults. The preferences identified describe how African American students and African American adult science professionals prefer to function, learn, concentrate, and perform in their educational and work activities in the areas of: (a) immediate environment, (b) emotionality, (c) sociological needs, and (d) physical needs. The learning style preferences for the students and adults were not significantly different in key areas of preference. A Test of Science-Related Attitudes (TOSRA) was used to measure seven distinct science-related attitudes of the middle school students. A comparison of the profile of the mean scores for the students in this study

  12. Cognitive Style Predicts Entry into Physical Sciences and Humanities: Questionnaire and Performance Tests of Empathy and Systemizing

    Science.gov (United States)

    Billington, Jac; Baron-Cohen, Simon; Wheelwright, Sally

    2007-01-01

    It is often questioned as to why fewer women enter science. This study assesses whether a cognitive style characterized by systemizing being at a higher level than empathizing (S greater than E) is better than sex in predicating entry into the physical sciences compared to humanities. 415 students in both types of discipline (203 males, 212…

  13. A Test of the Integration of the Hopelessness and Response Styles Theories of Depression in Middle Adolescence

    Science.gov (United States)

    Abela, John R. Z.; Parkinson, Carolyn; Stolow, Darren; Starrs, Claire

    2009-01-01

    The current study examined several theories of depression in a sample of middle adolescents. At Time 1, 367 ninth graders completed measures assessing depressogenic inferential styles, the tendency to ruminate in response to depressed mood, and depressive symptoms. Six weeks later, participants completed measures assessing negative events and…

  14. Testing Dust Control Preparation with Respect to Mine Employee Exposure to Inhalling Chemical Agents

    Directory of Open Access Journals (Sweden)

    Eugeniusz Orszulik

    2013-01-01

    Full Text Available This paper presents the results of tests used in dust hazard prevention for air-water spraying devices in collieries. The purpose of the tests was to evaluate mine employees’ exposure to inhalling chemical agents when the ZWILKOP ZW-10 preparation is used. The paper presents the results of the measurements of concentration, in a mine atmosphere, of the following chemical agents: hazardous substances 2-(2-butoxyethoxyethanol and 2-ethylhexan-1-ol, constituting ingredients of the preparation at mine employees’ workstations. The tests were performed during work related to the mining of coal in inclined drift C31, seam 415/1-2 on the premises of “Borynia-Zofiówka-Jastrzębie” Hard Coal Mine, Jastrzębie-Zdrój, Poland, using the TELESTO mist systems. Using aqueous solutions for the preparation at concentrations of 15 and 20‰ causes no exceedance of the allowable mine air concentrations for the chemical agents tested.

  15. 40 CFR 1045.305 - How must I prepare and test my production-line engines?

    Science.gov (United States)

    2010-07-01

    ... production-line engines? 1045.305 Section 1045.305 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR POLLUTION CONTROLS CONTROL OF EMISSIONS FROM SPARK-IGNITION PROPULSION MARINE ENGINES AND VESSELS Testing Production-line Engines § 1045.305 How must I prepare and test my production-line engines...

  16. 40 CFR 1048.305 - How must I prepare and test my production-line engines?

    Science.gov (United States)

    2010-07-01

    ... production-line engines? 1048.305 Section 1048.305 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR POLLUTION CONTROLS CONTROL OF EMISSIONS FROM NEW, LARGE NONROAD SPARK-IGNITION ENGINES Testing Production-line Engines § 1048.305 How must I prepare and test my production-line engines? This...

  17. Preparation and testing of solutions for organ perfusion and preservation in transplantation

    OpenAIRE

    Antunović Mirjana; Aleksić Dragana

    2008-01-01

    Background/Aim. Histidine-tryptophan-ketoglutarate (HTK) solution is the most frequently used solution for the preservation of abdominal organs by leading transplant centers worldwide. The aim of the study was to investigate whether it is possible to prepare this kind of perfusion solution in the hospital pharmacy. In the hospital pharmacy setting we prepared HTK preservation solution and tested its quality, and in accordance with the obtained results recommended its shelf-life. Methods. A mu...

  18. Preparation of acceptance tests and criteria for the Test Blanket Systems to be operated in ITER

    Energy Technology Data Exchange (ETDEWEB)

    Laan, J.G. van der, E-mail: JaapG.vanderLaan@iter.org [ITER Organization, Route de Vinon sur Verdon, CS 90 046, 13067 St Paul Lez Durance Cedex (France); Cuquel, B. [AIRBUS Defence and Space S.A.S., 13115 Saint Paul Lez Durance (France); Demange, D.; Ghidersa, B.-E. [Karlsruhe Institute of Technology, Karlsruhe (Germany); Giancarli, L.M.; Iseli, M.; Jourdan, T. [ITER Organization, Route de Vinon sur Verdon, CS 90 046, 13067 St Paul Lez Durance Cedex (France); Nevière, J.-C. [Comex-Nucleaire, 13115 Saint Paul Lez Durance (France); Pascal, R.; Ring, W. [ITER Organization, Route de Vinon sur Verdon, CS 90 046, 13067 St Paul Lez Durance Cedex (France)

    2015-10-15

    Highlights: • Initial guideline for acceptance testing and acceptance criteria for Test Blanket Systems in ITER. • These tests complement those required by the applicable codes and standards, and regulations. • Completion of TBS manufacture will be followed by Factory Acceptance Testing, prior to shipment. • Next steps are “Reception Inspection Tests”, and on-site pre-installation and components tests. • This guideline allows the detailing of the TBS specific test plans and their scheduling. - Abstract: This paper describes the main acceptance criteria and required acceptance tests for the components of the six Test Blanket Systems to be installed and operated in ITER. It summarizes the guide-line toward the establishment of detailed test plans for the TBS, starting from the end-product at the ITER Members factories, and to generally define the type of tests that have to be performed on the ITER site after shipment, and/or prior to the systems final commissioning phase.

  19. Style Wars

    DEFF Research Database (Denmark)

    Handberg, Kristian

    2011-01-01

    Postmodernismen er kommet på museum i Victoria and Alberts stort anlagte udstilling Postmodernism. Style and Subversion 1970-1990. Reportage fra en udstilling, der spænder fra filosofi til firserpop og tager den nære fortid på museum.......Postmodernismen er kommet på museum i Victoria and Alberts stort anlagte udstilling Postmodernism. Style and Subversion 1970-1990. Reportage fra en udstilling, der spænder fra filosofi til firserpop og tager den nære fortid på museum....

  20. Test anxiety levels and related factors: students preparing for university exams.

    Science.gov (United States)

    Kurt, Ayse Sonay; Balci, Serap; Kose, Dilek

    2014-11-01

    To assess test anxiety levels and related factors among students preparing for university exams. The descriptive, cross-sectional study was conducted at Istanbul University, Turkey, and comprised students preparing for exams in two private courses for the 2010-11 academic year. Data was collected via an original questionnaire and the Test Anxiety Inventory. SPSS 20 was used for statistical analyses. Of the 1250 students who qualified for the study, the final sample size was 376 (30%). Of them, 210 (55.9%) were females, and 154 (41%) were 18 years old. Students' mean Test Anxiety Inventory scores were 39.44±11.34. Female students' overall test anxiety scores and mean emotionality subscale score were significantly higher than those of their male counterparts. Students whose mothers had an educational attainment between primary school n=170 (45.2%) and a high school diploma n=184 (48.9%), as well as those with four or more siblings n=49 (15%), had significantly higher mean overall Test Anxiety Inventory scores. Among other things, test anxiety is influenced by maternal educational level, type of high school, number of exams, and number of siblings. Preparing a relaxed study environment for students, providing the family monetary or social support, and encouraging participation in social activities are recommendedto decreajb anxiety in students preparing for university exams.

  1. The behavior style of coaches

    Directory of Open Access Journals (Sweden)

    Mijanović Mihajlo

    2016-01-01

    Full Text Available On the sample by 121 perspective young athletes was carried out the researching in the aim to establish the behavior style of coaches. The relevant information was obtained through the validated questionnaires of Chelladura and Saleha (1980. The questionnaire contains 40 questions which directly determine 5 behavior styles of coaches. All questions possess the scale by 5 levels with possible statements: (always, often, periodically, rarely and never. The true answer is only one statement on one question. It is word about five degrees 'Likert's scale'. It was carried out extensive and complex statistics processing of date, where the input qualitative categorical variables were transformed into quantitative. In the next step, transformed categorical variables were exposed in classical and neoclassical statistical methodology. On the base of exact indications which were obtained by using relevant invariant and multivariate statistical methods and tests, dominant behavior style of coaches is 'Instructive'. This behavior style of coach is the most desirable. According to this researching at the last position is behavior style which is the autocratically and it is also at the same time the least desirable. The results of Analysis of variance (ANOVA and Canonic discriminative analysis show the general statistical significant difference in the representation of the behavior styles. Instructive and Autocratic behavior style of coach mostly influences on the total (general discrimination i.e. difference. For above mentioned styles, it could be said that they are paradigm of contrasts in every way. Values of Tukey - HSD test explicitly shows that there are not statistical significant difference between Instructive Style and style Awarded - Feedback as well as between Democratically and style of Social Support. The other combinations i.e. couples of behavior styles are statistical significantly different.

  2. Testing Prepares Students to Learn Better: The Forward Effect of Testing in Category Learning

    Science.gov (United States)

    Lee, Hee Seung; Ahn, Dahwi

    2018-01-01

    The forward effect of testing occurs when testing on previously studied information facilitates subsequent learning. The present research investigated whether interim testing on initially studied materials enhances the learning of new materials in category learning and examined the metacognitive judgments of such learning. Across the 4…

  3. Influence of Specimen Preparation and Test Methods on the Flexural Strength Results of Monolithic Zirconia Materials.

    Science.gov (United States)

    Schatz, Christine; Strickstrock, Monika; Roos, Malgorzata; Edelhoff, Daniel; Eichberger, Marlis; Zylla, Isabella-Maria; Stawarczyk, Bogna

    2016-03-09

    The aim of this work was to evaluate the influence of specimen preparation and test method on the flexural strength results of monolithic zirconia. Different monolithic zirconia materials (Ceramill Zolid (Amann Girrbach, Koblach, Austria), Zenostar ZrTranslucent (Wieland Dental, Pforzheim, Germany), and DD Bio zx² (Dental Direkt, Spenge, Germany)) were tested with three different methods: 3-point, 4-point, and biaxial flexural strength. Additionally, different specimen preparation methods were applied: either dry polishing before sintering or wet polishing after sintering. Each subgroup included 40 specimens. The surface roughness was assessed using scanning electron microscopy (SEM) and a profilometer whereas monoclinic phase transformation was investigated with X-ray diffraction. The data were analyzed using a three-way Analysis of Variance (ANOVA) with respect to the three factors: zirconia, specimen preparation, and test method. One-way ANOVA was conducted for the test method and zirconia factors within the combination of two other factors. A 2-parameter Weibull distribution assumption was applied to analyze the reliability under different testing conditions. In general, values measured using the 4-point test method presented the lowest flexural strength values. The flexural strength findings can be grouped in the following order: 4-point strength values than prepared before sintering. The Weibull moduli ranged from 5.1 to 16.5. Specimens polished before sintering showed higher surface roughness values than specimens polished after sintering. In contrast, no strong impact of the polishing procedures on the monoclinic surface layer was observed. No impact of zirconia material on flexural strength was found. The test method and the preparation method significantly influenced the flexural strength values.

  4. Learning Styles: Concepts and Evidence.

    Science.gov (United States)

    Pashler, Harold; McDaniel, Mark; Rohrer, Doug; Bjork, Robert

    2008-12-01

    The term "learning styles" refers to the concept that individuals differ in regard to what mode of instruction or study is most effective for them. Proponents of learning-style assessment contend that optimal instruction requires diagnosing individuals' learning style and tailoring instruction accordingly. Assessments of learning style typically ask people to evaluate what sort of information presentation they prefer (e.g., words versus pictures versus speech) and/or what kind of mental activity they find most engaging or congenial (e.g., analysis versus listening), although assessment instruments are extremely diverse. The most common-but not the only-hypothesis about the instructional relevance of learning styles is the meshing hypothesis, according to which instruction is best provided in a format that matches the preferences of the learner (e.g., for a "visual learner," emphasizing visual presentation of information). The learning-styles view has acquired great influence within the education field, and is frequently encountered at levels ranging from kindergarten to graduate school. There is a thriving industry devoted to publishing learning-styles tests and guidebooks for teachers, and many organizations offer professional development workshops for teachers and educators built around the concept of learning styles. The authors of the present review were charged with determining whether these practices are supported by scientific evidence. We concluded that any credible validation of learning-styles-based instruction requires robust documentation of a very particular type of experimental finding with several necessary criteria. First, students must be divided into groups on the basis of their learning styles, and then students from each group must be randomly assigned to receive one of multiple instructional methods. Next, students must then sit for a final test that is the same for all students. Finally, in order to demonstrate that optimal learning requires

  5. Maximum acceptable weight of lift reflects peak lumbosacral extension moments in a functional capacity evaluation test using free style, stoop and squat lifting.

    Science.gov (United States)

    Kuijer, P P F M; van Oostrom, S H; Duijzer, K; van Dieën, J H

    2012-01-01

    It is unclear whether the maximum acceptable weight of lift (MAWL), a common psychophysical method, reflects joint kinetics when different lifting techniques are employed. In a within-participants study (n = 12), participants performed three lifting techniques--free style, stoop and squat lifting from knee to waist level--using the same dynamic functional capacity evaluation lifting test to assess MAWL and to calculate low back and knee kinetics. We assessed which knee and back kinetic parameters increased with the load mass lifted, and whether the magnitudes of the kinetic parameters were consistent across techniques when lifting MAWL. MAWL was significantly different between techniques (p = 0.03). The peak lumbosacral extension moment met both criteria: it had the highest association with the load masses lifted (r > 0.9) and was most consistent between the three techniques when lifting MAWL (ICC = 0.87). In conclusion, MAWL reflects the lumbosacral extension moment across free style, stoop and squat lifting in healthy young males, but the relation between the load mass lifted and lumbosacral extension moment is different between techniques. Tests of maximum acceptable weight of lift (MAWL) from knee to waist height are used to assess work capacity of individuals with low-back disorders. This article shows that the MAWL reflects the lumbosacral extension moment across free style, stoop and squat lifting in healthy young males, but the relation between the load mass lifted and lumbosacral extension moment is different between techniques. This suggests that standardisation of lifting technique used in tests of the MAWL would be indicated if the aim is to assess the capacity of the low back.

  6. Investigating the Relationship between Test Preparation and "TOEFL iBT"® Performance. Research Report. ETS RR-14-15

    Science.gov (United States)

    Liu, Ou Lydia

    2014-01-01

    This study investigates the relationship between test preparation and test performance on the "TOEFL iBT"® exam. Information on background variables and test preparation strategies was gathered from 14,593 respondents in China through an online survey. A Chinese standardized English test was used as a control for prior English ability.…

  7. Preparation courses for a medical admissions test: effectiveness contrasts with opinion.

    Science.gov (United States)

    Wilkinson, Tom M; Wilkinson, Tim J

    2013-04-01

    The Undergraduate Medicine and Health Sciences Admissions Test (UMAT) is used to rank applicants for admission to many medical schools. This study aimed to determine the effects of preparation courses on UMAT performance and on students' perceptions of their performance. We asked students who sat the UMAT twice across two consecutive years to complete an online survey. The survey was administered in 2010 and 2011 to gather information on preparation activities, costs of preparation activities and students' opinions regarding their expected performance. Survey responses were compared with student scores on the second taking of the UMAT, adjusted for prior UMAT scores and university performance. The study (cohort: n = 263) was sufficiently powered to investigate two forms of preparation: courses offered by MedEntry (a UMAT preparation provider), and tutoring offered by the students' halls of residence. Neither was found to significantly affect UMAT score (p = 0.09 for MedEntry courses; p = 0.50 for halls of residence tutoring). There was no relationship between total time or money spent preparing and UMAT performance. However, students taking MedEntry courses and students spending more money on UMAT preparation were more likely to predict an improved score (p students improved their score on the second sitting, irrespective of preparation. The use of either of two common forms of UMAT preparation does not translate to an improvement in UMAT score. However, in accordance with confirmation bias theory, the association between money spent on preparatory courses and self-assessed predicted score suggests that students' belief in the effectiveness of such courses may be confounded by their financial outlay. © Blackwell Publishing Ltd 2013.

  8. What is the impact of commercial test preparation courses on medical examination performance?

    Science.gov (United States)

    McGaghie, William C; Downing, Steven M; Kubilius, Ramune

    2004-01-01

    Commercial test preparation courses are part of the fabric of U.S. medical education. They are also big business with 2,000 sales for 1 firm listed at nearly $250 million. This article systematically reviews and evaluates research published in peer-reviewed journals and in the "grey literature" that addresses the impact of commercial test preparation courses on standardized, undergraduate medical examinations. Thirteen computerized English language databases were searched using 29 search terms and search concepts from their onset to October 1, 2002. Also manually searched was medical education conference proceedings and publications after the end date; and medical education journal editors were contacted about articles accepted for publication, but not yet in print, that were deemed pertinent to this review. Studies that met three criteria were selected: (a) a commercial test preparation course or service was an educational intervention, (b) the outcome variable was one of several standardized medical examinations, and (c) results are published in a peer-reviewed journal or another outlet that insures scholarly scrutiny. The criteria were applied and data extracted by consensus of 2 reviewers. The search identified 11 empirical studies, of which 10 (8 journal articles, 2 unpublished reports) are included in this review. Qualitative data synthesis and tabular presentation of research methods and outcomes are used. The articles and unpublished reports reveal that current research lacks control and rigor; the incremental validity of the commercial courses on medical examination performance, if any, is extremely small; and evidence in support of the courses is weak or nonexistent; almost no details are given about the form and conduct of the commercial test preparation courses; studies are confined to courses in preparation for the Medical College Admission Test, the former National Board of Medical Examiners Part 1, and the United States Medical Licensing Examination

  9. Preparation and Integration of ALHAT Precision Landing Technology for Morpheus Flight Testing

    Science.gov (United States)

    Carson, John M., III; Robertson, Edward A.; Pierrottet, Diego F.; Roback, Vincent E.; Trawny, Nikolas; Devolites, Jennifer L.; Hart, Jeremy J.; Estes, Jay N.; Gaddis, Gregory S.

    2014-01-01

    The Autonomous precision Landing and Hazard Avoidance Technology (ALHAT) project has developed a suite of prototype sensors for enabling autonomous and safe precision land- ing of robotic or crewed vehicles on solid solar bodies under varying terrain lighting condi- tions. The sensors include a Lidar-based Hazard Detection System (HDS), a multipurpose Navigation Doppler Lidar (NDL), and a long-range Laser Altimeter (LAlt). Preparation for terrestrial ight testing of ALHAT onboard the Morpheus free- ying, rocket-propelled ight test vehicle has been in progress since 2012, with ight tests over a lunar-like ter- rain eld occurring in Spring 2014. Signi cant work e orts within both the ALHAT and Morpheus projects has been required in the preparation of the sensors, vehicle, and test facilities for interfacing, integrating and verifying overall system performance to ensure readiness for ight testing. The ALHAT sensors have undergone numerous stand-alone sensor tests, simulations, and calibrations, along with integrated-system tests in special- ized gantries, trucks, helicopters and xed-wing aircraft. A lunar-like terrain environment was constructed for ALHAT system testing during Morpheus ights, and vibration and thermal testing of the ALHAT sensors was performed based on Morpheus ights prior to ALHAT integration. High- delity simulations were implemented to gain insight into integrated ALHAT sensors and Morpheus GN&C system performance, and command and telemetry interfacing and functional testing was conducted once the ALHAT sensors and electronics were integrated onto Morpheus. This paper captures some of the details and lessons learned in the planning, preparation and integration of the individual ALHAT sen- sors, the vehicle, and the test environment that led up to the joint ight tests.

  10. Factors Affecting Result in Chinese Proficiency Test (HSK Level 6: Reading Section and Preparation Strategies

    Directory of Open Access Journals (Sweden)

    Sri Haryanti

    2013-11-01

    Full Text Available Chinese Proficiency Test (HSK is an internationally standardized exam which tests and rates Chinese language proficiency. The highest level in this test is level 6. The writing part of the test consists of 3 (three parts, namely, (1 listening, (2 reading, (3 writing. Furthermore, the reading part is made of 4 components. Level 6 of this test implies a high degree of difficulty. This paper specifically looked on how to prepare effectively for participants to be able to work on the reading part in order to achieve best result. This article used the methods of literature review and observational study as well as field research and would also incorporate the author’s personal experience in taking the test into recommending strategies for doing the reading part in a level 6 HSK test. Finally, research suggested several techniques and tips that might assist participants in achieving maximum scores in handling the reading part of level 6 HSK test.

  11. High temperature superconductivity: Concept, preparation and testing of high Tc superconductor compounds, and applications

    International Nuclear Information System (INIS)

    Harara, Wafik

    1992-06-01

    Many studies have been carried out on high temperature superconductors with transition temperature above that of the liquid nitrogen. In this scientific study the concept and the mechanism of this phenomena are discussed, in addition the examples of preparation and testing of high temperature superconductors compounds are shown. Also the most important applications in industry are explained. (author). 15 refs., 2 tabs., 18 figs

  12. Preparation results for lifetime test of conversion LEU fuel in plutonium production reactors

    International Nuclear Information System (INIS)

    Vatulin, A.; Stetskiy, Yu.; Kukharkin, N.; Kalougin, A.; Gavrilov, P.; Ivanov, A.

    1999-01-01

    The program of converting Russian production reactors for the purpose to stop their plutonium fabrication is currently in progress. The program also provides for operation of these reactors under the conversion mode with using of low-enriched fuel (LEU). LEU fuel elements were developed and activities related to their preparation for reactor tests were carried out. (author)

  13. Reading Comprehension in Test Preparation Classes: An Analysis of Teachers' Pedagogical Content Knowledge in TESOL

    Science.gov (United States)

    Irvine-Niakaris, Christine; Kiely, Richard

    2015-01-01

    This article examines the pedagogical content knowledge which underpins the practices in reading lessons of experienced teachers in test preparation classes. It takes as a starting point the assumption that practice is shaped by teacher cognitions, which are established through professional training and classroom experience. Thus, the study…

  14. Some aspects of preparation and testing of group constants group constant system ABBN-90

    International Nuclear Information System (INIS)

    Nikolaev, M.N.; Tsiboulia, A.M.; Manturov, G.N.

    1996-01-01

    This paper presents an overview of activities performed to prepare and test the group constants ABBN-90. The ABBN-90 set is designed for application calculations of fast, intermediate and thermal nuclear reactors. The calculations of subgroup parameters are discussed. The processing code system GRUCON is mentioned in comparison to the NJOY code system. Proposals are made for future activities. (author). Figs, tabs

  15. Analytical support for the preparation of bundle test QUENCH-10 on air ingress

    International Nuclear Information System (INIS)

    Birchley, J.; Haste, T.; Homann, C.; Hering, W.

    2005-07-01

    Bundle test QUENCH-10 is dedicated to study air ingress with subsequent water quench during a supposed accident in a spent fuel storage tank. It was proposed by AEKI, Budapest, Hungary and was performed on 21 July 2004 in the QUENCH facility at Forschungszentrum Karlsruhe. Preparation of the test is based on common analytical work at Forschungszentrum Karlsruhe and Paul Scherrer Institut, Villigen, Switzerland, mainly with the severe accident codes SCDAP/RELAP5 and MELCOR, to derive the protocol for the essential test phases, namely pre-oxidation, air ingress and quench phase. For issues that could not be tackled by this computational work, suggestions for the test conduct were made and applied during the test. Improvements of the experimental set-up and the test conduct were suggested and largely applied. In SCDAP/RELAP5, an error was found: for thick oxide scales, the output value of the oxide scale is sensibly underestimated. For the aims of the test preparation, its consequences could be taken into account. Together with the related computational and other analytical support by the engaged institutions the test is co-financed as test QUENCH-L1 by the European Community under the Euratom Fifth Framework Programme on Nuclear Fission Safety 1998 - 2002 (LACOMERA Project, contract No. FIR1-CT2002-40158). (orig.)

  16. [Parenting styles].

    Science.gov (United States)

    Torío López, Susana; Peña Calvo, José Vicente; Inda Caro, Mercedes

    2008-02-01

    Parental educational styles constitute one of the key elements of family socialization. The aim of the present essay is to present the results of a research project carried out in the Principality of Asturias (Spain) among 2,965 families with children of infant and primary-school age (5-8 years old). This research attempts to analyse, among other aspects, parental behaviour tendencies in child upbringing. The analysis of the results obtained allows us to: 1) identify the most common attitudinal and behavioural tendencies of parents in the upbringing of their children; 2) determine how many people have a well defined parental style, and delimit their socio-educational characteristics. Lastly, we consider the need to change some parental behaviour patterns and stress the importance of family education programmes, with the aim of promoting appropriate parenting models and modifying or improving current practices.

  17. New Oxford style manual

    CERN Document Server

    2012-01-01

    The New Oxford Style Manual brings together two essential reference works in a single volume: New Hart's Rules and the New Oxford Dictionary for Writers and Editors. New Hart's Rules, Oxford's definitive guide to style, consists of 20 chapters that provide authoritative and expert advice on how to prepare copy for publication. Topics covered include how to use italic, roman, and other type treatments, numbers and dates, law and legal references, illustrations, notes and references, and bibliographies. The guidelines are complemented by the New Oxford Dictionary for Writers and Editors, which features 25,000 alphabetically arranged entries giving authoritative advice on those words and names which raise questions time and time again because of spelling, capitalization, hyphenation, or cultural and historical context. Entries give full coverage of recommended spellings, variant forms, confusable words, hyphenation, capitalization, foreign and specialist terms, proper names, and abbreviations. The dictionary a...

  18. An improved method of preparing onion bulbs for the Alium test

    Directory of Open Access Journals (Sweden)

    Małgorzata Wierzbicka

    2014-01-01

    Full Text Available The tests on storage and preparation of onion (Allium cepa L. bulbs presented in this paper were performed in order to obtain the highest possible number of roots of similar length, which would be suitable for performing the Allium test. The results were subject to a detailed statistical analysis and allowed the following procedure to be recommended: 1 Store the bulbs at room temperature rather than in a refrigerator for two weeks before starting the experiments. 2 Do not use the biggest bulbs (over 80-100 g; use medium and small bulbs with the largest possible diameter of the reduced stem. 3 Just before starting the culture, wash the bottom part of the bulb, cut out the central part of the reduced stem and cut off the upper part of the bulb. At least 70% of bulbs prepared this way are expected to be suitable for cytological tests.

  19. Standard practice for preparation and use of direct tension stress-corrosion test specimens

    CERN Document Server

    American Society for Testing and Materials. Philadelphia

    1985-01-01

    1.1 This practice covers procedures for designing, preparing, and using ASTM standard tension test specimens for investigating susceptibility to stress-corrosion cracking. Axially loaded specimens may be stressed quantitatively with equipment for application of either a constant load, constant strain, or with a continuously increasing strain. 1.2 Tension test specimens are adaptable for testing a wide variety of product forms as well as parts joined by welding, riveting, or various other methods. 1.3 The exposure of specimens in a corrosive environment is treated only briefly because other standards are being prepared to deal with this aspect. Meanwhile, the investigator is referred to Practices G35, G36, G37, and G44, and to ASTM Special Technical Publication 425 (1).

  20. Chinese Students' Perceptions of the Value of Test Preparation Courses for the TOEFL iBT: Merit, Worth, and Significance

    Science.gov (United States)

    Ma, Jia; Cheng, Liying

    2015-01-01

    Test preparation for high-stakes English language tests has received increasing research attention in the language assessment field; however, little is known about what aspects of test preparation students attend to and value. In this study, we considered the perspectives of 12 Chinese students who were enrolled in various academic programs in a…

  1. Standard Test Method for Preparing Aircraft Cleaning Compounds, Liquid Type, Water Base, for Storage Stability Testing

    CERN Document Server

    American Society for Testing and Materials. Philadelphia

    2002-01-01

    1.1 This test method covers the determination of the stability in storage, of liquid, water-base chemical cleaning compounds, used to clean the exterior surfaces of aircraft. 1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

  2. The effect of learning style on academic student success

    Science.gov (United States)

    Stackhouse, Omega N.

    The problem addressed in this study was that little was known about the impact on student academic achievement, when grouped by learning style, in a multiple intelligence based science curriculum. The larger problem was that many students were frequently unengaged and, consequently, low achieving in their science courses. This quantitative study used an ex post facto research design to better understand the impact of student learning style on the academic success of students in a Multiple Intelligence Theory based course room. Gardner's work on Multiple Intelligence served as the conceptual framework for this study. The research question for this study asked if academic instruction that employs multiple intelligence theories has a relationship with students' academic achievement differently according to their learning style group (auditory, visual, and kinesthetic). Existing data from 85 students were placed into 1 of 3 groups: (a) Auditory, (b) Visual, or (c) Kinesthetic Learning Style) using existing data from a student inventory instrument. The independent variable was existing data from student inventories of learning style and the dependent variable was existing student scores from the Physical Science End of Course Test. Existing data were taken from students that were all taught with the same strategies in similar classroom environments. The Physical Science End of Course Test was developed with stringent measures to protect validity by the developer, McGraw-Hill. Cronbach's Alpha was conducted to determine the internal reliability coefficient of the student inventory. The impact for social change is that adding to the body of knowledge regarding student learning style and science curriculum provides valuable information for teachers, administrators, and school policy makers. This will allow teachers to better prepare to engage their students' and to prepare them for their place in society.

  3. PREPARATION, CHARACTERIZATION, AND CATALYTIC ACTIVITY TEST OF Ni-Mo/NATURAL ZEOLITE ON PYRIDINE HYDRODENITROGENATION

    Directory of Open Access Journals (Sweden)

    Sri Kadarwati

    2010-12-01

    Full Text Available Preparation, characterization, and catalytic activity test of Ni-Mo/natural zeolite on pyridine hydrodenitrogenation were carried out. Preparation of catalyst was conducted by impregnation method using nickel nitrate hexahydrate and ammonium heptamolibdate precursor as Ni and Mo source respectively. Characterization of catalyst was conducted by using gravimetry, atomic absorption spectrophotometry, and X-ray diffraction method. Catalytic activity test on pyridine hydrodenitrogenation was carried out by using flow system reactor with hydrogen flow rate variable. The research results showed that the catalyst's total acidity and crystallinity are increased with level of impregnation success of 96.71% and 90.08% respectively. Ni-Mo/natural zeolites able to increase the catalytic conversion up to 71.78% at 350 °C and hydrogen flow rate of 10 mL/min with more highly varied product distribution. Assuming that the pyridine hydrodenitrogenation follows the pseudo first order kinetics.

  4. Insecure Attachment Styles, Relationship-Drinking Contexts, and Marital Alcohol Problems: Testing the Mediating Role of Relationship-Specific Drinking-to-Cope Motives

    Science.gov (United States)

    Levitt, Ash; Leonard, Kenneth E.

    2015-01-01

    Research and theory suggest that romantic couple members are motivated to drink to cope with interpersonal distress. Additionally, this behavior and its consequences appear to be differentially associated with insecure attachment styles. However, no research has directly examined drinking to cope that is specific to relationship problems, or with relationship-specific drinking outcomes. Based on alcohol motivation and attachment theories, the current study examines relationship-specific drinking-to-cope processes over the early years of marriage. Specifically, it was hypothesized that drinking to cope with a relationship problem would mediate the associations between insecure attachment styles (i.e., anxious and avoidant) and frequencies of drinking with and apart from one’s partner and marital alcohol problems in married couples. Multilevel models were tested via the Actor-Partner Interdependence Model using reports of both members of 470 couples over the first 9 years of marriage. As expected, relationship-specific drinking-to-cope motives mediated the effects of actor anxious attachment on drinking apart from one’s partner and on marital alcohol problems, but, unexpectedly, not on drinking with the partner. No mediated effects were found for attachment avoidance. Results suggest that anxious (but not avoidant) individuals are motivated to use alcohol to cope specifically with relationship problems in certain contexts, which may exacerbate relationship difficulties associated with attachment anxiety. Implications for theory and future research on relationship-motivated drinking are discussed. PMID:25799439

  5. Testing the feasibility of an interactive learning styles measure for U.S. Latino adults with type 2 diabetes and low literacy.

    Science.gov (United States)

    Carbone, Elena T; Lennon, Karen M; Torres, M Idalí; Rosal, Milagros C

    This study designed and piloted an interactive measure to assess learning preferences of Latinos in the United States with diabetes and limited literacy. The measure utilized interactive learning activities to represent four learning styles: visual (seeing), kinesthetic (doing), affective (feeling/sensing), and cognitive (thinking), targeting four diabetes self-management behaviors: choosing healthy foods; understanding portion sizes; distinguishing foods to eat often/sometimes/rarely; and limiting fat. Quantitative data were collected using the Spanish Short Test of Functional Health Literacy in Adults (S-TOFHLA). Individual, structured cognitive interview questions asked participants to identify learning activities that most reflected their own experience with diabetes. Participant observations provided additional qualitative data. Ten Spanish-speaking adults with type 2 diabetes and limited literacy participated in two randomly selected target behaviors and identified easiest and most difficult to understand learning activities. S-TOFHLA scores ranged from 0 to 21 points (mean 7.0) and identified eight participants with inadequate and two with marginal health literacy. Easiest to understand tasks were kinesthetic, most difficult to understand tasks were cognitive. This is one of the first known studies of its kind and offers insight for measuring learning styles of Latinos with diabetes and low health literacy.

  6. Perseus B Taxi Tests in Preparation for a New Series of Flight Tests

    Science.gov (United States)

    1998-01-01

    The Perseus B remotely piloted aircraft taxis on the runway at Edwards Air Force Base, California, before a series of development flights at NASA's Dryden flight Research Center. The Perseus B is the latest of three versions of the Perseus design developed by Aurora Flight Sciences under NASA's Environmental Research Aircraft and Sensor Technology (ERAST) program. Perseus B is a remotely piloted aircraft developed as a design-performance testbed under NASA's Environmental Research Aircraft and Sensor Technology (ERAST) project. Perseus is one of several flight vehicles involved in the ERAST project. A piston engine, propeller-powered aircraft, Perseus was designed and built by Aurora Flight Sciences Corporation, Manassas, Virginia. The objectives of Perseus B's ERAST flight tests have been to reach and maintain horizontal flight above altitudes of 60,000 feet and demonstrate the capability to fly missions lasting from 8 to 24 hours, depending on payload and altitude requirements. The Perseus B aircraft established an unofficial altitude record for a single-engine, propeller-driven, remotely piloted aircraft on June 27, 1998. It reached an altitude of 60,280 feet. In 1999, several modifications were made to the Perseus aircraft including engine, avionics, and flight-control-system improvements. These improvements were evaluated in a series of operational readiness and test missions at the Dryden Flight Research Center, Edwards, California. Perseus is a high-wing monoplane with a conventional tail design. Its narrow, straight, high-aspect-ratio wing is mounted atop the fuselage. The aircraft is pusher-designed with the propeller mounted in the rear. This design allows for interchangeable scientific-instrument payloads to be placed in the forward fuselage. The design also allows for unobstructed airflow to the sensors and other devices mounted in the payload compartment. The Perseus B that underwent test and development in 1999 was the third generation of the Perseus

  7. Preparation and testing of solutions for organ perfusion and preservation in transplantation

    Directory of Open Access Journals (Sweden)

    Antunović Mirjana

    2008-01-01

    Full Text Available Background/Aim. Histidine-tryptophan-ketoglutarate (HTK solution is the most frequently used solution for the preservation of abdominal organs by leading transplant centers worldwide. The aim of the study was to investigate whether it is possible to prepare this kind of perfusion solution in the hospital pharmacy. In the hospital pharmacy setting we prepared HTK preservation solution and tested its quality, and in accordance with the obtained results recommended its shelf-life. Methods. A multicomponent HTK solution was prepared following standardized aseptic procedures for sterile products. Components of HTK solution were dissolved in water for injection under aseptic conditions and the obtained solution was sterilized by bacteriological membrane filtration (0,22 μm. The quality of the produced solution was examined using physical and physico-chemical methods and biological tests. Following pharmacopoeial regulations, we examined clarity, pH value, sterility and performed testing on pyrogens. The content of the amino acids histidine and triptophan was determined by using high pressure liquid chromatography (HPLC method. The concentrations of chloride ions were investigated by retitration method. Atomic absorption spectrometry and ion-exchange chromatography with conductometric detection were used for determining the level of magnesium and calcium ions and the concentrations of sodium and potassium ions in HTK solution, respectively. Results. It was shown that the quality of the prepared HTK solution complied with the regulation demands. Also, pH value of the solution as a function of storage temperature, remained in the physiological range (pH 7.4. Conclusion. According to the obtained results of physico-chemical and biological testing it can be concluded that in the hospital pharmacy setting with the applied technological procedure, we can produce HTK preservation solution of the required quality. Keeping of HTK preservation solution in a

  8. Purification of nonlipopolysaccharide antigen from Brucella abortus during preparation of antigen used for indirect hemolysis test.

    OpenAIRE

    Hoffmann, E M; Houle, J J

    1986-01-01

    The indirect hemolysis test (IHLT) for the diagnosis of brucellosis uses a lipopolysaccharide (LPS) antigen obtained by dimethyl sulfoxide extraction of Brucella abortus. We showed that a non-LPS antigen can be obtained as a by-product of the IHLT antigen preparation. The antigen was purified to homogeneity by a combination of gel-filtration chromatography and ion-exchange chromatography. The substance contained 8% protein and about 65% carbohydrate. The molecular weight of the primary unit w...

  9. MobiQiyas: A Mobile Learning Standardized Test Preparation for Saudi Arabian Students

    OpenAIRE

    Mohssen Mohammed Alabbadi

    2010-01-01

    A mobile learning system, called MobiQiyas, for preparing Saudi Arabian students for one of the standardized tests, given by the National Center for Assessment in Higher Education (NCAHE), has been developed, using ready-made commercial products and tools. The learning material of MobiQiyas consists of practice questions with their answers, both provided by NCAHE, to be loaded by the students into their own mobile phones; after installation, the students can interact with MobiQiyas any number...

  10. Hanford Waste Vitrification Plant full-scale feed preparation testing with water and process simulant slurries

    International Nuclear Information System (INIS)

    Gaskill, J.R.; Larson, D.E.; Abrigo, G.P.

    1996-03-01

    The Hanford Waste Vitrification Plant was intended to convert selected, pretreated defense high-level waste and transuranic waste from the Hanford Site into a borosilicate glass. A full-scale testing program was conducted with nonradioactive waste simulants to develop information for process and equipment design of the feed-preparation system. The equipment systems tested included the Slurry Receipt and Adjustment Tank, Slurry Mix Evaporator, and Melter-Feed Tank. The areas of data generation included heat transfer (boiling, heating, and cooling), slurry mixing, slurry pumping and transport, slurry sampling, and process chemistry. 13 refs., 129 figs., 68 tabs

  11. G-Tunnel pressurized slot-testing preparations; Yucca Mountain Site Characterization Project

    Energy Technology Data Exchange (ETDEWEB)

    Zimmerman, R.M.; Sifre-Soto, C. [Sandia National Labs., Albuquerque, NM (United States); Mann, K.L.; Bellman, R.A. Jr.; Luker, S. [Science Applications International Corp., Las Vegas, NV (United States); Dodds, D.J. [North Pacific Research, Portland, OR (United States)

    1992-04-01

    Designers and analysts of radioactive waste repositories must be able to predict the mechanical behavior of the host rock. Sandia National laboratories elected to conduct a development program on pressurized slot testing and featured (1) development of an improved method to cut slots using a chain saw with diamond-tipped cutters, (2) measurements useful for determining in situ stresses normal to slots, (3) measurements applicable for determining the in situ modulus of deformation parallel to a drift surface, and (4) evaluations of the potentials of pressurized slot strength testing. This report describes the preparations leading to the measurements and evaluations.

  12. Surface preparation for residual stress measurement of an accelerated corrosion tested welded marine steel

    International Nuclear Information System (INIS)

    Ahmad, Bilal; Fitzpatrick, Michael E.

    2015-01-01

    Residual stress measurement is often required for the assessment of structural integrity of components. Measurement of residual stress in corrosion tested specimens is challenging owing to the difficulty of accessing the surface because of the rust layer. This study explored the potential methods for the surface preparation of an ultrasonically-peened and accelerated corrosion tested DH36 marine steel fillet welded specimen to ease the way for subsequent residual stress measurement using neutron diffraction and the contour method. We find that hydroblasting introduces compressive residual stress at the surface that will alter the surface stress to be measured

  13. Hanford Waste Vitrification Plant full-scale feed preparation testing with water and process simulant slurries

    Energy Technology Data Exchange (ETDEWEB)

    Gaskill, J.R.; Larson, D.E.; Abrigo, G.P. [and others

    1996-03-01

    The Hanford Waste Vitrification Plant was intended to convert selected, pretreated defense high-level waste and transuranic waste from the Hanford Site into a borosilicate glass. A full-scale testing program was conducted with nonradioactive waste simulants to develop information for process and equipment design of the feed-preparation system. The equipment systems tested included the Slurry Receipt and Adjustment Tank, Slurry Mix Evaporator, and Melter-Feed Tank. The areas of data generation included heat transfer (boiling, heating, and cooling), slurry mixing, slurry pumping and transport, slurry sampling, and process chemistry. 13 refs., 129 figs., 68 tabs.

  14. Leadership: Four Styles

    Science.gov (United States)

    Howard, W. C.

    2005-01-01

    The Four Styles narrative of Leadership is written in three sections: (1) Overview of Leadership Styles; (2) Analysis of Leadership Styles; and (3) Applications of Leadership Styles. While the primary foundation for its development was generated from more than 30 years of research and studying leadership styles in education, the secondary…

  15. The PZC-based Tc-99m generator preparation and its performance test

    International Nuclear Information System (INIS)

    Liu Yishu

    2007-01-01

    This paper described the preparation of Tc-99m generator prepared with Japan distributing Mo adsorbent PZC and irradiated nature MoO 3 and its performance test. Four Tc-99m generators were prepared with different batches of PZC and reactor irradiated nature MoO 3 . The adsorption capacity of PZC to Mo is approximately 200mgMo/gPZC. The adsorption efficiency of three batches PZC is good (>90%) and that of one batch of PZC is not good enough (∼83%). The loss of fine powder (The PZC is fragile) is quite different with the different preparation process of PZC. The elution efficiency is 80-90% and has the up trend with the elution date. The Mo breakthrough can be controlled to acceptable level by connecting HZO safe column containing 1.0g HZO. All the specifications of eluted from PZC-based Tc-99m generator can meet the requirements under Sodium Pertechnetate injection in China Pharmacopoeia. (author)

  16. Affective Style, Humor Styles and Happiness

    Directory of Open Access Journals (Sweden)

    Thomas E. Ford

    2014-08-01

    Full Text Available The present study examined the relationships between dispositional approach and avoidance motives, humor styles, and happiness. In keeping with previous research, approach motives and the two positive humor styles (self-enhancing and affiliative positively correlated with happiness, whereas avoidance motives and the two negative humor styles (self-defeating and aggressive negatively correlated with happiness. Also, we found support for three new hypotheses. First, approach motives correlated positively with self-enhancing and affiliative humor styles. Second, avoidance motives correlated positively with self-defeating humor style, and third, the positive relationship between approach motives and happiness was mediated by self-enhancing humor style.

  17. Preparation of thyroid FNA material for routine cytology and BRAF testing: a validation study.

    Science.gov (United States)

    Troncone, Giancarlo; Cozzolino, Immacolata; Fedele, Maria; Malapelle, Umberto; Palombini, Lucio

    2010-03-01

    V600E BRAF mutation is emerging as an independent marker of papillary thyroid carcinoma aggressive behavior. Papillary thyroid carcinomas harboring this mutation should be extensively resected. However, this requires an unquestionable cytological diagnosis of malignancy. Thus, cytological specimens should be properly handled to provide both morphological and molecular information. Here, we assessed whether our method of preparation of fine-needle aspiration material is suitable for both tests. A series of 128, routinely performed, fine-needle aspirations was analyzed. Each nodule was punctured three times. A representative Diff-Quik smear prepared from the first two passages was evaluated onsite. When microscopy was diagnostic (n = 44), the third needle pass was dedicated to harvest material for BRAF testing; in the remaining cases (n = 84), additional direct smears for cytology were prepared and the remaining material in the needle plus the needle rinsing was collected for BRAF testing. Cellularity was adequate in 126/128 (98%) cases. Cytological diagnoses were inadequate (2%), benign (85%), follicular lesion of undetermined significance (5%), follicular neoplasms (2%), suspicious for malignancy (2%), and malignant (4%). Higher average of extracted DNA concentration was observed in the dedicated pass group (25.9 vs 7.95 ng/microl). However, the rate of successful exon 15 BRAF amplification was similar with (43/44; 97.7%) or without (79/84; 94%) the dedicated pass. Thus, our protocol is suitable for both tests. Whenever necessary BRAF testing may also be performed on the residual samples of thyroid nodules, without interfering with routine cytology.

  18. Learning Styles and Student Performance in Introductory Economics

    Science.gov (United States)

    Brunton, Bruce

    2015-01-01

    Data from nine introductory microeconomics classes was used to test the effect of student learning style on academic performance. The Kolb Learning Style Inventory was used to assess individual student learning styles. The results indicate that student learning style has no significant effect on performance, undermining the claims of those who…

  19. Revisiting the concept of 'style match'.

    Science.gov (United States)

    Zhang, Li-fang; Sternberg, Robert J; Fan, Jieqiong

    2013-06-01

    Intellectual style, an encompassing term for such constructs as learning style, teaching style, teaching approach, and thinking style, refers to one's preferred way of processing information. For the past several decades, whether or not there is a need for a match between teachers' teaching styles and students' learning styles has been the focal point for debate among researchers, educators, and the general public. The preliminary objective of this research was to investigate the psychometric properties of the Preferred Teaching Approach Inventory (PTAI). The research's primary objective was to re-examine the concept of 'style match' through testing the predictive power of students' thinking styles for their preferred teaching approaches. Data were collected from two samples of university students, one each from Shanghai, mainland China (N = 236), and Hong Kong (N = 123). Participants provided the required demographic information and responded to two self-report inventories: the Thinking Styles Inventory - Revised II and the PTAI. Acceptable reliability and good validity were found for the PTAI. All of the eight multiple regressions indicated that students' thinking styles significantly contributed to their preferences for teachers' teaching approaches. These contributions varied by gender among the Shanghai students and by academic discipline among the Hong Kong students. Students, especially Shanghai female students and Hong Kong natural science students, are open to teaching approaches that do not precisely match their thinking styles. The concept of 'style match' requires new understanding. Findings have implications for research and education. © 2013 The British Psychological Society.

  20. How do subcritical cracking rates and styles influence rock erosion? A test case from the Blue Ridge Mountains of Virginia.

    Science.gov (United States)

    Eppes, M. C.; Hancock, G. S.; Dewers, T. A.; Chen, X.; Eichhubl, P.

    2017-12-01

    There is a disconnect between measured rates of rock erosion and regolith production and our understanding of the factors and processes that drive them. Here we examine the mechanical weathering (cracking) characteristics of natural, bare bedrock outcrops characterized by 10Be derived erosion rates that vary from 2 to 40 m/my in the Blue Ridge Mountains, VA. Observed erosion rate variance generally correlates with rock type; we seek to characterize and quantify to what extent the mechanical weathering properties of the different rock types drive erosion rates. We assert that subcritical cracking constitutes the primary mechanism by which the outcrops increase their porosity and subsequently weather and erode. We therefore hypothesize that rock parameters that control rates and styles of subcritical cracking set the outcrop erosion rates. For each outcrop, we measured crack characteristics along transects: for every crack >2 cm length, we measured its length, width, orientation, and weathering characteristics (rounded vs sharp edges); and we measured the thickness of all `steps' (spallation remnants) encountered in the transects. For most outcrops, we collected surface samples in order to characterize their mineralogy and microcracking characteristics through thin section analysis. For each rock type, we collected samples for which we measured fracture toughness, as well as the subcritical crack growth index under different moisture conditions. Preliminary analysis of the field crack data indicates that each rock type (granite, sandstone, quartzite) is characterized by unique macro- and micro-scale crack characteristics consistent with known generic subcritical cracking parameters for those rocks. Crack density and length correlate with erosion rates in faster eroding rock types, but not slowly eroding ones. Overall, we hope these data will help to shed light on the driving and limiting factors for the mechanical production of porosity in rock at and near Earth

  1. Preparation, validation and user-testing of pictogram-based patient information leaflets for hemodialysis patients.

    Science.gov (United States)

    Mateti, Uday Venkat; Nagappa, Anantha Naik; Attur, Ravindra Prabhu; Bairy, Manohar; Nagaraju, Shankar Prasad; Mallayasamy, Surulivelrajan; Vilakkathala, Rajesh; Guddattu, Vasudev; Balkrishnan, Rajesh

    2015-11-01

    Patient information leaflets are universally-accepted resources to educate the patients/users about their medications, disease and lifestyle modification. The objective of the study was to prepare, validate and perform user-testing of pictogram-based patient information leaflets (P-PILs) among hemodialysis (HD) patients. The P-PILs are prepared by referring to the primary, secondary and tertiary resources. The content and pictograms of the leaflet have been validated by an expert committee consisting of three nephrologists and two academic pharmacists. The Baker Able Leaflet Design has been applied to develop the layout and design of the P-PILs. Quasi-experimental pre- and post-test design without control group was conducted on 81 HD patients for user-testing of P-PILs. The mean Baker Able Leaflet Design assessment score for English version of the leaflet was 28, and 26 for Kannada version. The overall user-testing knowledge assessment mean scores were observed to have significantly improved from 44.25 to 69.62 with p value <0.001. The overall user opinion of content and legibility of the leaflets was good. Pictogram-based patient information leaflets can be considered an effective educational tool for HD patients.

  2. Preparation and applicability of a test of speech perception with pictures.

    Science.gov (United States)

    Souza, Laís Flavia de; Braga, Gabriela Rosito Alvarez Bernardez; Mota, Ana Lúcia Rios; Zamberlan-Amorim, Nelma Ellen; Reis, Ana Cláudia Mirândola Barbosa

    2016-01-01

    To prepare and apply support material for responses to the Speech Recognition Percentage Index (SRPI) test in children. This is a descriptive, exploratory study conducted in two phases: in the first phase, 31 speech-language pathologists (referees) prepared material composed of regular, frequently used monosyllabic and disyllabic words belonging to the vocabulary of children and figures that could represent these words; the second phase consisted in the application of this material to 30 normal-hearing children aged 2 to 4 years and 11 months. The material consisted of 25 words and six boards with six figures each. The word selection criterion adopted by the referees included the initial phoneme and real, colorful figures familiar to the children. The mean scores of the children in the SRPI test were 93% (SD ± 8%) with the support of figures and 64% (SD ± 25%) without figure support. Comparison between the results obtained with and without the support of figures showed significant difference for 15 of the 25 test words, with higher scores with the use of supporting figures. Comparison between correct and incorrect responses using the support of figures showed significant difference only for the word "dog" ("cão") (p=0.0079). There was agreement among the referees with respect to the words and figures. The SRPI test can be rapidly and easily applied, allowing evaluation and systematic monitoring of speech perception ability regardless of child verbalization capacity.

  3. Preparations for deuterium tritium experiments on the Tokamak Fusion Test Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Hawryluk, R.J.; Adler, H.; Alling, P.; Ancher, C.; Anderson, H.; Anderson, J.W.; Arunasalam, V.; Ascione, G.; Ashcroft, D.; Barnes, G. [and others

    1994-04-01

    The final hardware modifications for tritium operation have been completed for the Tokamak Fusion Test Reactor (TFTR). These activities include preparation of the tritium gas handling system, installation of additional neutron shielding, conversion of the toroidal field coil cooling system from water to a Fluorinet{sup {trademark}} system, modification of the vacuum system to handle tritium, preparation and testing of the neutral beam system for tritium operation and a final deuterium-deuterium (D-D) run to simulate expected deuterium-tritium (D-T) operation. Testing of the tritium system with low concentration tritium has successfully begun. Simulation of trace and high power D-T experiments using D-D have been performed. The physics objectives of D-T operation are production of {approximately} 10 megawatts (MW) of fusion power, evaluation of confinement and heating in deuterium-tritium plasmas, evaluation of {alpha}-particle heating of electrons, and collective effects driven by alpha particles and testing of diagnostics for confined {alpha}-particles. Experimental results and theoretical modeling in support of the D-T experiments are reviewed.

  4. Preparations for deuterium--tritium experiments on the Tokamak Fusion Test Reactor*

    Energy Technology Data Exchange (ETDEWEB)

    Hawryluk, R.J.; Adler, H.; Alling, P.; Ancher, C.; Anderson, H.; Anderson, J.L.; Anderson, J.W.; Arunasalam, V.; Ascione, G.; Aschroft, D.; Barnes, C.W.; Barnes, G.; Batchelor, D.B.; Bateman, G.; Batha, S.; Baylor, L.A.; Beer, M.; Bell, M.G.; Biglow, T.S.; Bitter, M.; Blanchard, W.; Bonoli, P.; Bretz, N.L.; Brunkhorst, C.; Budny, R.; Burgess, T.; Bush, H.; Bush, C.E.; Camp, R.; Caorlin, M.; Carnevale, H.; Chang, Z.; Chen, L.; Cheng, C.Z.; Chrzanowski, J.; Collazo, I.; Collins, J.; Coward, G.; Cowley, S.; Cropper, M.; Darrow, D.S.; Daugert, R.; DeLooper, J.; Duong, H.; Dudek, L.; Durst, R.; Efthimion, P.C.; Ernst, D.; Faunce, J.; Fonck, R.J.; Fredd, E.; Fredrickson, E.; Fromm, N.; Fu, G.Y.; Furth, H.P.; Garzotto, V.; Gentile, C.; Gettelfinger, G.; Gilbert, J.; Gioia, J.; Goldfinger, R.C.; Golian, T.; Gorelenkov, N.; Gouge, M.J.; Grek, B.; Grisham, L.R.; Hammett, G.; Hanson, G.R.; Heidbrink, W.; Hermann, H.W.; Hill, K.W.; Hirshman, S.; Hoffman, D.J.; Hosea, J.; Hulse, R.A.; Hsuan, H.; Ja

    1994-05-01

    The final hardware modifications for tritium operation have been completed for the Tokamak Fusion Test Reactor (TFTR) [Fusion Technol. [bold 21], 1324 (1992)]. These activities include preparation of the tritium gas handling system, installation of additional neutron shielding, conversion of the toroidal field coil cooling system from water to a Fluorinert[sup TM] system, modification of the vacuum system to handle tritium, preparation, and testing of the neutral beam system for tritium operation and a final deuterium--deuterium (D--D) run to simulate expected deuterium--tritium (D--T) operation. Testing of the tritium system with low concentration tritium has successfully begun. Simulation of trace and high power D--T experiments using D--D have been performed. The physics objectives of D--T operation are production of [approx]10 MW of fusion power, evaluation of confinement, and heating in deuterium--tritium plasmas, evaluation of [alpha]-particle heating of electrons, and collective effects driven by alpha particles and testing of diagnostics for confined [alpha] particles. Experimental results and theoretical modeling in support of the D--T experiments are reviewed.

  5. Quality characteristics of northern-style Chinese steamed bread prepared from soft red winter wheat flours with waxy wheat flour substitution

    Science.gov (United States)

    Quality characteristics of Chinese steamed bread (CSB) prepared from two soft red winter (SRW) wheat flours blended with 0-30% waxy wheat flour (WWF) were determined to estimate the influence of starch amylose content. The increased proportion of WWF in blends raised mixograph absorption with insign...

  6. Fragrance patch tests prepared in advance may give false-negative reactions.

    Science.gov (United States)

    Mowitz, Martin; Svedman, Cecilia; Zimerson, Erik; Bruze, Magnus

    2014-11-01

    Several of the ingredients in fragrance mix I (FM I) have been shown to evaporate from petrolatum preparations applied in test chambers to an extent that can be suspected to affect the patch test result. To compare the reactivity towards FM I and fragrance mix II (FM II) when they are applied in test chambers in advance and immediately prior to the patch test occasion. Seven hundred and ninety-five consecutive patients were simultaneously patch tested with duplicate samples of FM I and FM II. One sample was applied in the test chamber 6 days in advance (6D sample), and the other sample was applied immediately before the patients were patch tested (fresh sample). Twenty-two (2.8%) patients reacted exclusively to the fresh sample of FM I, 6 (0.7%) reacted exclusively to the 6D sample, and 22 (2.8%) reacted to both samples. The corresponding numbers for FM II were 9 (1.1%) for the fresh sample, 6 (0.7%) for the 6D sample and 12 (1.5%) for both samples. There was a statistically significant difference between the numbers of patients reacting to the fresh and 6D samples of FM I. No corresponding difference was observed for FM II. This can probably be explained by differences in volatilities between the ingredients of FM I and FM II. © 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  7. New Tools to Prepare ACE Cross-section Files for MCNP Analytic Test Problems

    International Nuclear Information System (INIS)

    Brown, Forrest B.

    2016-01-01

    Monte Carlo calculations using one-group cross sections, multigroup cross sections, or simple continuous energy cross sections are often used to: (1) verify production codes against known analytical solutions, (2) verify new methods and algorithms that do not involve detailed collision physics, (3) compare Monte Carlo calculation methods with deterministic methods, and (4) teach fundamentals to students. In this work we describe 2 new tools for preparing the ACE cross-section files to be used by MCNP ® for these analytic test problems, simple a ce.pl and simple a ce m g.pl.

  8. Parenting styles and eating disorders.

    Science.gov (United States)

    Jáuregui Lobera, I; Bolaños Ríos, P; Garrido Casals, O

    2011-10-01

    The aim of the study was to analyse the parental bonding profiles in patients with eating disorders (ED), as well as the relationship among the different styles of parenting and some psychological and psychopathological variables. In addition, the association between the perceived parental bonding and different coping strategies was analysed. Perception of parenting styles was analysed in a sample of 70 ED patients. The Parental Bonding Instrument, Self-Esteem Scale of Rosenberg, Coping Strategies Inventory, State-Trait Anxiety Inventory, Beck Depression Inventory and Eating Disorders Inventory-2 were used. Kruskal-Wallis test (comparisons), Spearman correlation coefficients (association among different variables) and χ(2)-test (parental bonding profiles differences) were applied. The stereotyped style among ED patients is low care-high control during the first 16 years, and the same can be said about current styles of the mothers. Between 8.6% and 12.9% of the patients perceive their parents' styles as neglectful. The neglectful parenting is the style mainly involved in the specific ED symptoms as drive for thinness, body dissatisfaction and bulimia. In order to achieve a better balanced parents' role during the treatment, it would be necessary to improve the role of the mothers as caregivers, decreasing their role mainly based on the overprotection. © 2011 Blackwell Publishing.

  9. Formulation, stability testing, and analytical characterization of melatonin-based preparation for clinical trial

    Directory of Open Access Journals (Sweden)

    Samira Filali

    2017-08-01

    Full Text Available A new institutional clinical trial assessed the improvement of sleep disorders in 40 children with autism treated by immediate-release melatonin formulation in different regimens (0.5 mg, 2 mg, and 6 mg daily for one month. The objectives of present study were to (i prepare low-dose melatonin hard capsules for pediatric use controlled by two complementary methods and (ii carry out a stability study in order to determine a use-by-date. Validation of preparation process was claimed as ascertained by mass uniformity of hard capsules. Multicomponent analysis by attenuated total reflectance Fourier transformed infrared (ATR-FTIR of melatonin/microcrystalline cellulose mixture allowed to identify and quantify relative content of active pharmaceutical ingredients and excipients. Absolute melatonin content analysis by high performance liquid chromatography in 0.5 mg and 6 mg melatonin capsules was 93.6%±4.1% and 98.7%±6.9% of theoretical value, respectively. Forced degradation study showed a good separation of melatonin and its degradation products. The capability of the method was 15, confirming a risk of false negative <0.01%. Stability test and dissolution test were compliant over 18 months of storage with European Pharmacopoeia. Preparation of melatonin hard capsules was completed manually and melatonin in hard capsules was stable for 18 months, in spite of low doses of active ingredient. ATR-FTIR offers a real alternative to HPLC for quality control of high-dose melatonin hard capsules before the release of clinical batches.

  10. Preparation for Scaling Studies of Ice-Crystal Icing at the NRC Research Altitude Test Facility

    Science.gov (United States)

    Struk, Peter M.; Bencic, Timothy J.; Tsao, Jen-Ching; Fuleki, Dan; Knezevici, Daniel C.

    2013-01-01

    This paper describes experiments conducted at the National Research Council (NRC) of Canadas Research Altitiude Test Facility between March 26 and April 11, 2012. The tests, conducted collaboratively between NASA and NRC, focus on three key aspects in preparation for later scaling work to be conducted with a NACA 0012 airfoil model in the NRC Cascade rig: (1) cloud characterization, (2) scaling model development, and (3) ice-shape profile measurements. Regarding cloud characterization, the experiments focus on particle spectra measurements using two shadowgraphy methods, cloud uniformity via particle scattering from a laser sheet, and characterization of the SEA Multi-Element probe. Overviews of each aspect as well as detailed information on the diagnostic method are presented. Select results from the measurements and interpretation are presented which will help guide future work.

  11. MobiQiyas: A Mobile Learning Standardized Test Preparation for Saudi Arabian Students

    Directory of Open Access Journals (Sweden)

    Mohssen Mohammed Alabbadi

    2010-10-01

    Full Text Available A mobile learning system, called MobiQiyas, for preparing Saudi Arabian students for one of the standardized tests, given by the National Center for Assessment in Higher Education (NCAHE, has been developed, using ready-made commercial products and tools. The learning material of MobiQiyas consists of practice questions with their answers, both provided by NCAHE, to be loaded by the students into their own mobile phones; after installation, the students can interact with MobiQiyas any number of times, as desired, without incurring any additional cost, other than the initial airtime cost for downloading. From total number of students taken the test, 20,000 students were randomly selected to use MobiQiyas and information was collected from them to measure their attitudes and participation of MobiQiyas. It was found that 36.1% of students had actually downloaded MobiQiyas successfully. Furthermore, a telephone survey was conducted, after the test period, on a class of 40 students in a secondary school in Riyadh, taking the same test, to measure their acceptance of MobiQiyas, using a 9-item questionnaire based on a 5-point Likert scale. The responses of the 40 students reflected high acceptance and satisfaction levels of MobiQiyas as an effective test prep tool.

  12. Preparing Individuals to Communicate Genetic Test Results to Their Relatives: Report of a Randomized Control Trial

    Science.gov (United States)

    Montgomery, Susan V.; Barsevick, Andrea M.; Egleston, Brian L.; Bingler, Ruth; Ruth, Karen; Miller, Suzanne M.; Malick, John; Cescon, Terrence P.; Daly, Mary B.

    2013-01-01

    Background This study reports a randomized clinical trial evaluating the efficacy of an intervention to prepare individuals to communicate BRCA1/BRCA2 results to family members. Methods Women aged 18 years and older, who had genetic testing, and who had adult first-degree relatives (FDRs), were randomly assigned to a communication skills-building intervention or a wellness control session. Primary outcomes were the percentage of probands sharing test results, and the level of distress associated with sharing. The ability of the Theory of Planned Behavior variables to predict the outcomes was explored. Results Four hundred twenty-two women were enrolled in the study, 219 (intervention) and 203 (control). Data from 137 in the intervention group and 112 in the control group were analyzed. Two hundred forty-nine probands shared test results with 838 relatives (80.1%). There were no significant differences between study groups in the primary outcomes. Combining data from both arms revealed that perceived control and specific social influence were associated with sharing. Probands were more likely to share genetic test results with their children, female relatives and relatives who they perceived had a favorable opinion about learning the results. Conclusion The communication skills intervention did not impact sharing of test results. The proband’s perception of her relative’s opinion of genetic testing and her sense of control in relaying this information influenced sharing. Communication of test results is selective, with male relatives and parents less likely to be informed. Impact Prevalent psychosocial factors play a role in the communication of genetic test results within families. PMID:23420550

  13. Impact of a "TED-Style" presentation on potential patients' willingness to accept dental implant therapy: a one-group, pre-test post-test study.

    Science.gov (United States)

    Ghanem, Henry; Afrashtehfar, Kelvin Ian; Abi-Nader, Samer; Tamimi, Faleh

    2015-12-01

    A survey was conducted to assess the impact of a TED-like educational session on participants' willingness to accept dental implant therapy. Volunteers interested in having information about dental implant therapies were recruited and asked to complete a two-part survey before and after an educational session. The initial survey elicited demographic information, self-perceived knowledge on dental implants and willingness to this kind of treatment. A "TED-style" presentation that provided information about dental implant treatments was conducted before asking the participants to complete a second set of questions assessing the impact of the session. The survey was completed by 104 individuals, 78.8% were women and the mean age was 66.5±10.8. Before the educational session, 76.0% of the participants refused dental implants mainly due to lack of knowledge. After the educational session, the rejection of dental implants decreased by almost four folds to 20.2%. This study proved that an educational intervention can significantly increase willingness to accept treatment with dental implants in a segment of the population who is interested in having information about dental implant therapy. Furthermore, educational interventions, such as TED-like talks, might be useful to increase popular awareness on dental implant therapy.

  14. Impact of a "TED-Style" presentation on potential patients' willingness to accept dental implant therapy: a one-group, pre-test post-test study

    Science.gov (United States)

    Ghanem, Henry; Abi-Nader, Samer

    2015-01-01

    PURPOSE A survey was conducted to assess the impact of a TED-like educational session on participants' willingness to accept dental implant therapy. MATERIALS AND METHODS Volunteers interested in having information about dental implant therapies were recruited and asked to complete a two-part survey before and after an educational session. The initial survey elicited demographic information, self-perceived knowledge on dental implants and willingness to this kind of treatment. A "TED-style" presentation that provided information about dental implant treatments was conducted before asking the participants to complete a second set of questions assessing the impact of the session. RESULTS The survey was completed by 104 individuals, 78.8% were women and the mean age was 66.5±10.8. Before the educational session, 76.0% of the participants refused dental implants mainly due to lack of knowledge. After the educational session, the rejection of dental implants decreased by almost four folds to 20.2%. CONCLUSION This study proved that an educational intervention can significantly increase willingness to accept treatment with dental implants in a segment of the population who is interested in having information about dental implant therapy. Furthermore, educational interventions, such as TED-like talks, might be useful to increase popular awareness on dental implant therapy. PMID:26816573

  15. The Impact Of Transformational And Transactional Leadership Styles On Employees Satisfaction And Performance: An Empirical Test In A Multicultural Environment

    OpenAIRE

    Cedwyn Fernandes; Raed Awamleh

    2011-01-01

    This study tests the transformational leadership theory among managers at functional levels in United Arab Emirates (UAE) international companies. The UAE business sector was chosen due to its significance in the regional economy and its sizable contributions as the UAE continues to lead its neighboring countries in business development and technological advancements. More specifically, the UAE economy depends very heavily on expatriate workers and professionals, which creates a rich yet chal...

  16. Simple Sample Preparation Method for Direct Microbial Identification and Susceptibility Testing From Positive Blood Cultures

    Directory of Open Access Journals (Sweden)

    Hong-wei Pan

    2018-03-01

    Full Text Available Rapid identification and determination of the antibiotic susceptibility profiles of the infectious agents in patients with bloodstream infections are critical steps in choosing an effective targeted antibiotic for treatment. However, there has been minimal effort focused on developing combined methods for the simultaneous direct identification and antibiotic susceptibility determination of bacteria in positive blood cultures. In this study, we constructed a lysis-centrifugation-wash procedure to prepare a bacterial pellet from positive blood cultures, which can be used directly for identification by matrix-assisted laser desorption/ionization-time-of-flight mass spectrometry (MALDI-TOF MS and antibiotic susceptibility testing by the Vitek 2 system. The method was evaluated using a total of 129 clinical bacteria-positive blood cultures. The whole sample preparation process could be completed in <15 min. The correct rate of direct MALDI-TOF MS identification was 96.49% for gram-negative bacteria and 97.22% for gram-positive bacteria. Vitek 2 antimicrobial susceptibility testing of gram-negative bacteria showed an agreement rate of antimicrobial categories of 96.89% with a minor error, major error, and very major error rate of 2.63, 0.24, and 0.24%, respectively. Category agreement of antimicrobials against gram-positive bacteria was 92.81%, with a minor error, major error, and very major error rate of 4.51, 1.22, and 1.46%, respectively. These results indicated that our direct antibiotic susceptibility analysis method worked well compared to the conventional culture-dependent laboratory method. Overall, this fast, easy, and accurate method can facilitate the direct identification and antibiotic susceptibility testing of bacteria in positive blood cultures.

  17. Effects of seedbed preparation, irrigation, and water harvesting of seedling emergence at the Nevada Test Site

    International Nuclear Information System (INIS)

    Winkel, V.K.; Ostler, W.K.; Gabbert, W.D.; Lyon, G.E.

    1994-02-01

    Approximately 800 hectares on the US Department of Energy Nevada Test Site and vicinity are contaminated with plutonium. As part of a cleanup effort, both the indigenous vegetation and the top 5--10 cm of soil may be removed, and the soil may or may not be replaced. Technologies must be developed to stabilize and revegetate these lands. A study was developed to determine adaptable plant species, methods to prepare seedbeds for direct seeding and water harvesting, and proper irrigation rates. Plots were cleared of indigenous vegetation, and then prepared with various seedbed/water harvesting treatments including, pitting, land imprinting, and mulching. Other plots were treated with large water harvesting structures. Three irrigation treatments were superimposed over the seedbed/water harvesting treatments. Seedling emergence data was collected, and the treatment combinations compared. Supporting meteorological and soil data were collected with an automatic data-logger. Specific data included precipitation, and air temperature. In a year of above-average precipitation, irrigation did not generally aid germination and emergence of seeded species, and only slightly increased densities of species from the native seedbank. With the exception of increased shrub seedling densities in desert strips, there were no strong seedbed preparation/water harvesting treatment effects. In years of above-average rainfall, mulching and water harvesting treatments, irrigation may not be necessary to insure adequate germination and emergence of adapted perennial grasses, forbs, and shrubs in the Mojave/Great Basin Transition Desert. Future collection of survival data will determine whether a maintenance irrigation program is necessary to ensure establishmnent of native plants

  18. Development of the high-level waste high-temperature melter feed preparation flowsheet for vitrification process testing

    International Nuclear Information System (INIS)

    Seymour, R.G.

    1995-01-01

    High-level waste (HLW) feed preparation flowsheet development was initiated in fiscal year (FY) 1994 to evaluate alternative flowsheets for preparing melter feed for high-temperature melter (HTM) vitrification testing. Three flowsheets were proposed that might lead to increased processing capacity relative to the Hanford Waste Vitrification Plant (HWVP) and that were flexible enough to use with other HLW melter technologies. This document describes the decision path that led to the selection of flowsheets to be tested in the FY 1994 small-scale HTM tests. Feed preparation flowsheet development for the HLW HTM was based on the feed preparation flowsheet that was developed for the HWVP. This approach allowed the HLW program to build upon the extensive feed preparation flowsheet database developed under the HWVP Project. Primary adjustments to the HWVP flowsheet were to the acid adjustment and glass component additions. Developmental background regarding the individual features of the HLW feed preparation flowsheets is provided. Applicability of the HWVP flowsheet features to the new HLW vitrification mission is discussed. The proposed flowsheets were tested at the laboratory-scale at Pacific Northwest Laboratory. Based on the results of this testing and previously established criteria, a reductant-based flowsheet using glycolic acid and a nitric acid-based flowsheet were selected for the FY 1994 small-scale HTM testing

  19. Development of the high-level waste high-temperature melter feed preparation flowsheet for vitrification process testing

    Energy Technology Data Exchange (ETDEWEB)

    Seymour, R.G.

    1995-02-17

    High-level waste (HLW) feed preparation flowsheet development was initiated in fiscal year (FY) 1994 to evaluate alternative flowsheets for preparing melter feed for high-temperature melter (HTM) vitrification testing. Three flowsheets were proposed that might lead to increased processing capacity relative to the Hanford Waste Vitrification Plant (HWVP) and that were flexible enough to use with other HLW melter technologies. This document describes the decision path that led to the selection of flowsheets to be tested in the FY 1994 small-scale HTM tests. Feed preparation flowsheet development for the HLW HTM was based on the feed preparation flowsheet that was developed for the HWVP. This approach allowed the HLW program to build upon the extensive feed preparation flowsheet database developed under the HWVP Project. Primary adjustments to the HWVP flowsheet were to the acid adjustment and glass component additions. Developmental background regarding the individual features of the HLW feed preparation flowsheets is provided. Applicability of the HWVP flowsheet features to the new HLW vitrification mission is discussed. The proposed flowsheets were tested at the laboratory-scale at Pacific Northwest Laboratory. Based on the results of this testing and previously established criteria, a reductant-based flowsheet using glycolic acid and a nitric acid-based flowsheet were selected for the FY 1994 small-scale HTM testing.

  20. Preparation of Ga-68-NOTA as a renal PET agent and feasibility tests in mice

    International Nuclear Information System (INIS)

    Lee, Ji Youn; Jeong, Jae Min; Kim, Young Ju; Jeong, Hyuk-Jin; Lee, Yun-Sang; Lee, Dong Soo

    2014-01-01

    Introduction: Positron emission tomography (PET) may provide more accurate quantification of kidney function such as glomerular filtration rate (GFR) than gamma imaging. The purpose of these experiments was to prepare and evaluate Ga-68 complexes as potential PET agents for measurement of GFR. Methods: We labeled EDTA, DTPA, DOTA, and NOTA with Ga-68 obtained from a Ge-68/Ga-68-generator and measured the binding to serum and red blood cells. Biodistribution study was performed in male BALB/c mice after intravenous injection together with Cr-51-EDTA as the standard for glomerular filtration rate (GFR) measurement. Animal-PET study was performed using BALB/c mice. Results: All the tested chelating agents except DTPA showed quantitative labeling yields (> 99%). Among them, Ga-68-NOTA showed consistently low binding to both human and mouse RBC and serum protein. Biodistribution study showed no significant difference between Ga-68-NOTA and Cr-51-EDTA groups by one-way analysis of variance (ANOVA) (p > 0.05). Furthermore, the GFR values obtained by Ga-68-NOTA and Cr-51-EDTA were almost same (0.26 ± 0.04 and 0.25 ± 0.04 mL/min, respectively). Animal-PET study showed almost the same GFR (0.25 mL/min) with the values obtained by biodistribution study. Conclusion: We proved that an easy-to-prepare agent Ga-68-NOTA is ideal for renal PET as well as for GFR measurement

  1. Preparation of flexible bone tissue scaffold utilizing sea urchin test and collagen.

    Science.gov (United States)

    Manchinasetty, Naga Vijaya Lakshmi; Oshima, Sho; Kikuchi, Masanori

    2017-10-13

    Gonads of sea urchin are consumed in Japan and some countries as food and most parts including its tests are discarded as marine wastes. Therefore, utilization of them as functional materials would reduce the waste as well as encourage Japanese fishery. In this study, magnesium containing calcite granules collected from sea urchin tests were hydrothermally phosphatized and the obtained granules were identified as approximately 82% in mass of magnesium containing β-tricalcium phosphate and 18% in mass of nonstoichiometric hydroxyapatite, i.e., a biphasic calcium phosphate, maintaining the original porous network. Shape-controlled scaffolds were fabricated with the obtained biphasic calcium phosphate granules and collagen. The scaffolds showed good open porosity (83.84%) and adequate mechanical properties for handling during cell culture and subsequent operations. The MG-63 cells showed higher proliferation and osteogenic differentiation in comparison to a control material, the collagen sponge with the same size. Furthermore, cell viability assay proved that the scaffolds were not cytotoxic. These results suggest that scaffold prepared using sea urchin test derived calcium phosphate and collagen could be a potential candidate of bone void fillers for non-load bearing defects in bone reconstruction as well as scaffolds for bone tissue engineering.

  2. Antibody preparation and identification of the Cashmere goat c-kit protein in the testes.

    Science.gov (United States)

    Wu, S C L; Luo, F H; Kong, Q F; Wu, Y J

    2014-07-02

    The c-kit protein plays a major role in the regulation of germ cell development. Its expression and distribution in rodent testes have been widely reported. However, research regarding c-kit expression in domestic animals is scarce, and the expression pattern and distribution of c-kit in germ cells have not been clearly defined. In this study, a specific antigenic region for goat c-kit was designed, and a c-kit polyclonal antibody was prepared. This antibody was then applied in a study evaluating c-kit expression in Cashmere goat tissues. A Western blot analysis showed that three forms of c-kit were expressed in goat testes: precursor, mature, and soluble c-kit. Fluorescent immunohistochemical analyses showed that c-kit was primarily expressed in the spermatogonia and spermatocytes of goat testes. These results not only clarify the expression and localization of c-kit in the goat testis, but also accelerate further research regarding the function of c-kit in goat spermatogenesis.

  3. Preparation of Pd-Loaded Hierarchical FAU Membranes and Testing in Acetophenone Hydrogenation.

    Science.gov (United States)

    Molinari, Raffaele; Lavorato, Cristina; Mastropietro, Teresa F; Argurio, Pietro; Drioli, Enrico; Poerio, Teresa

    2016-03-22

    Pd-loaded hierarchical FAU (Pd-FAU) membranes, containing an intrinsic secondary non-zeolitic (meso)porosity, were prepared and tested in the catalytic transfer hydrogenation of acetophenone (AP) to produce phenylethanol (PE), an industrially relevant product. The best operating conditions were preliminarily identified by testing different solvents and organic hydrogen donors in a batch hydrogenation process where micron-sized FAU seeds were employed as catalyst support. Water as solvent and formic acid as hydrogen source resulted to be the best choice in terms of conversion for the catalytic hydrogenation of AP, providing the basis for the design of a green and sustainable process. The best experimental conditions were selected and applied to the Pd-loaded FAU membrane finding enhanced catalytic performance such as a five-fold higher productivity than with the unsupported Pd-FAU crystals (11.0 vs. 2.2 mgproduct gcat(-1)·h(-1)). The catalytic performance of the membrane on the alumina support was also tested in a tangential flow system obtaining a productivity higher than that of the batch system (22.0 vs. 11.0 mgproduct gcat(-1)·h(-1)).

  4. Preparation of Pd-Loaded Hierarchical FAU Membranes and Testing in Acetophenone Hydrogenation

    Directory of Open Access Journals (Sweden)

    Raffaele Molinari

    2016-03-01

    Full Text Available Pd-loaded hierarchical FAU (Pd-FAU membranes, containing an intrinsic secondary non-zeolitic (mesoporosity, were prepared and tested in the catalytic transfer hydrogenation of acetophenone (AP to produce phenylethanol (PE, an industrially relevant product. The best operating conditions were preliminarily identified by testing different solvents and organic hydrogen donors in a batch hydrogenation process where micron-sized FAU seeds were employed as catalyst support. Water as solvent and formic acid as hydrogen source resulted to be the best choice in terms of conversion for the catalytic hydrogenation of AP, providing the basis for the design of a green and sustainable process. The best experimental conditions were selected and applied to the Pd-loaded FAU membrane finding enhanced catalytic performance such as a five-fold higher productivity than with the unsupported Pd-FAU crystals (11.0 vs. 2.2 mgproduct gcat−1·h−1. The catalytic performance of the membrane on the alumina support was also tested in a tangential flow system obtaining a productivity higher than that of the batch system (22.0 vs. 11.0 mgproduct gcat−1·h−1.

  5. Preparation, Conduct and Evaluation of Exercises to Test Preparedness for a Nuclear or Radiological Emergency

    International Nuclear Information System (INIS)

    2010-01-01

    The aim of this publication is to serve as a practical tool for the preparation, conduct and evaluation of exercises to test preparedness for response to a nuclear or radiological emergency. It fulfils in part the functions assigned to the IAEA under Article 5.a(ii) of the Convention on Assistance in Case of a Nuclear Accident or Radiological Emergency (Assistance Convention), namely, to collect and disseminate to States Parties and Member States information concerning the methodologies, techniques and available results of research on such emergencies. To ensure effective response to radiation emergencies when needed, provisions should be made for regular training of emergency response personnel. As stated in Preparedness and Response for a Nuclear or Radiological Emergency (Safety Requirements, Safety Standard Series No. GS-R-2), 'The operator and the response organizations shall make arrangements for the selection of personnel and training to ensure that the personnel have the requisite knowledge, skills, abilities, equipment, procedures and other arrangements to perform their assigned response functions'. A further requirement is that 'Exercise programmes shall be conducted to ensure that all specified functions required to be performed for emergency response and all organizational interfaces for facilities in threat category I, II or III and the national level programmes for threat category IV or V are tested at suitable intervals'. In 2004 the IAEA General Conference, in resolution GC(48)/RES/10 encouraged Member States to 'implement the Safety Requirements for Preparedness and Response to a Nuclear or Radiological Emergency'. This document is published as part of the IAEA Emergency Preparedness and Response Series to assist in meeting these requirements and to fulfil Article 5 of the Assistance Convention. It was developed based on a number of assumptions about national and local capabilities. Therefore, the exercise structure, terms and scenarios must be

  6. Testing for the dual-route cascade reading model in the brain: an fMRI effective connectivity account of an efficient reading style.

    Science.gov (United States)

    Levy, Jonathan; Pernet, Cyril; Treserras, Sébastien; Boulanouar, Kader; Aubry, Florent; Démonet, Jean-François; Celsis, Pierre

    2009-08-18

    Neuropsychological data about the forms of acquired reading impairment provide a strong basis for the theoretical framework of the dual-route cascade (DRC) model which is predictive of reading performance. However, lesions are often extensive and heterogeneous, thus making it difficult to establish precise functional anatomical correlates. Here, we provide a connective neural account in the aim of accommodating the main principles of the DRC framework and to make predictions on reading skill. We located prominent reading areas using fMRI and applied structural equation modeling to pinpoint distinct neural pathways. Functionality of regions together with neural network dissociations between words and pseudowords corroborate the existing neuroanatomical view on the DRC and provide a novel outlook on the sub-regions involved. In a similar vein, congruent (or incongruent) reliance of pathways, that is reliance on the word (or pseudoword) pathway during word reading and on the pseudoword (or word) pathway during pseudoword reading predicted good (or poor) reading performance as assessed by out-of-magnet reading tests. Finally, inter-individual analysis unraveled an efficient reading style mirroring pathway reliance as a function of the fingerprint of the stimulus to be read, suggesting an optimal pattern of cerebral information trafficking which leads to high reading performance.

  7. Testing for the dual-route cascade reading model in the brain: an fMRI effective connectivity account of an efficient reading style.

    Directory of Open Access Journals (Sweden)

    Jonathan Levy

    Full Text Available Neuropsychological data about the forms of acquired reading impairment provide a strong basis for the theoretical framework of the dual-route cascade (DRC model which is predictive of reading performance. However, lesions are often extensive and heterogeneous, thus making it difficult to establish precise functional anatomical correlates. Here, we provide a connective neural account in the aim of accommodating the main principles of the DRC framework and to make predictions on reading skill. We located prominent reading areas using fMRI and applied structural equation modeling to pinpoint distinct neural pathways. Functionality of regions together with neural network dissociations between words and pseudowords corroborate the existing neuroanatomical view on the DRC and provide a novel outlook on the sub-regions involved. In a similar vein, congruent (or incongruent reliance of pathways, that is reliance on the word (or pseudoword pathway during word reading and on the pseudoword (or word pathway during pseudoword reading predicted good (or poor reading performance as assessed by out-of-magnet reading tests. Finally, inter-individual analysis unraveled an efficient reading style mirroring pathway reliance as a function of the fingerprint of the stimulus to be read, suggesting an optimal pattern of cerebral information trafficking which leads to high reading performance.

  8. Social Desirability and Self-Reports: Testing a Content and Response-Style Model of Socially Desirable Responding

    Directory of Open Access Journals (Sweden)

    Arta Dodaj

    2012-11-01

    Full Text Available Personality assessment as a pre-employment screening procedure receives great interest from both researchers and practitioners. One key concern for selection specialists is represented by the response distortion among job applicants completing personality inventories. There are different operationalizations of socially desirable responding. One of the most accepted operationalizations was provided by Paulhus who distinguished between two social desirability factors (the egoistic and moralistic bias as well as their conscious and unconscious aspects (management and enhancement. The aim of the study reported here is to test the basic assumption of the Paulhus model of socially desirable responding. A convenience sample of 200 students (N = 21.61; SD = 1.46 completed the Comprehensive Inventory of Desirable Responding (Paulhus, 2006 and the International Personality Item Pool Questionnaire (Goldberg, 1999; by Goldberg et al., 2006. Questionnaires were applied in three conditions: honest responding, responding as an ideal manager job applicant, and as an ideal teacher applicant. Results give partial support to the existence of egoistic and moralistic bias. However, conscious and unconscious aspects of distortion were not found. In conclusion it could be said that Paulhus’ model doesn’t provide a full answer to the problem of the nature of socially desirable responding.

  9. Reading Processes and Parenting Styles.

    Science.gov (United States)

    Carreteiro, Rui Manuel; Justo, João Manuel; Figueira, Ana Paula

    2016-08-01

    Home literacy environment explains between 12 and 18.5 % of the variance of children's language skills. Although most authors agree that children whose parents encourage them to read tend to develop better and earlier reading skills, some authors consider that the impact of family environment in reading skills is overvalued. Probably, other variables of parent-child relationship, like parenting styles, might be relevant for this field. Nevertheless, no previous studies on the effect of parenting styles in literacy have been found. To analyze the role of parenting styles in the reading processes of children. Children's perceptions of parenting styles contribute significantly to the explanation of statistical variance of children's reading processes. 110 children (67 boys and 43 girls), aged between 7 and 11 years (M [Formula: see text] 9.22 and SD [Formula: see text] 1.14) from Portuguese schools answered to a socio-demographic questionnaire. To assess reading processes it was administered the Portuguese adaptation (Figueira et al. in press) of Bateria de Avaliação dos Processos Leitores-Revista (PROLEC-R). To assess the parenting styles Egna Minnen av Barndoms Uppfostran-parents (EMBU-P) and EMBU-C (children version) were administered. According to multiple hierarchical linear regressions, individual factors contribute to explain all reading tests of PROLEC-R, while family factors contribute to explain most of these tests. Regarding parenting styles, results evidence the explanatory power about grammatical structures, sentence comprehension and listening. Parenting styles have an important role in the explanation of higher reading processes (syntactic and semantic) but not in lexical processes, focused by main theories concerning dyslexia.

  10. Software development of CBM well test

    Energy Technology Data Exchange (ETDEWEB)

    Chen, Z.; Li, B. [China Coal Research Institute, Xian (China)

    2002-10-01

    In response to the technology development of CBM exploration, and to meet the needs of analysing CBM test wells, an open style analytical software is developed. The paper presents the design concept, technical requirement and the framework of software development. The aim of integrating test well design, data preparation, test well analysis and auto-edit report is realized. 3 figs., 2 tabs.

  11. Preparation, Conduct and Evaluation of Exercises to Test Preparedness for a Nuclear or Radiological Emergency - Training Materials

    International Nuclear Information System (INIS)

    2010-01-01

    Emergency response exercises are a key component of a good program of preparation in emergencies. They can provide a unique insight on the State of preparation of emergency response organizations. They can also be the basis for continuous improvement programs of the infrastructure of response in emergencies. However, to be more useful, the exercises in emergency response need to be well organized, professionally conducted and its assessment should focus on the potential for constructive improvement. The course of the IAEA on preparedness, conduction and evaluation exercises to test the preparation before a nuclear emergency or radiation designed for people and organizations that want to increase their ability to carry out effective and significant emergency exercises. The objectives of this course are: To familiarize participants with concepts, terminology, process of preparation, conduction and evaluation of the exercise to test the preparation before a nuclear emergency or radiation; Provide participants with knowledge practical and the ability to organize, lead and evaluate an exercise to test the preparation for a nuclear emergency or radiation in their own countries; Submit an exercise response model in emergency prepared by the IAEA; and give participants the skill to adapt the proposal of model exercise and organize and lead this exercise model right in your own country. [es

  12. The Effects of Traditional Teaching Methods, Project-Based Learning, and a Blended Teaching Style on Elementary Students

    Science.gov (United States)

    Sawyer, Gene Landon

    2013-01-01

    The need for research on the effectiveness of a blended style of instruction is vital when considering the need for students to gain a lasting understanding of real-world knowledge and the need for teachers to address all state standards in preparation for their students to pass achievement tests. The purposes of this study were to determine the…

  13. Fuel cell testing of Pt–Ru catalysts supported on differently prepared and pretreated carbon nanotubes

    International Nuclear Information System (INIS)

    Tokarz, Wojciech; Lota, Grzegorz; Frackowiak, Elzbieta; Czerwiński, Andrzej; Piela, Piotr

    2013-01-01

    Proton-exchange membrane fuel cell (PEMFC) testing of Pt–Ru catalysts supported on differently prepared multiwall carbon nanotube (MCNT) supports was performed to elucidate the influence of the different supports on the operating characteristics of the catalysts under real direct methanol fuel cell (DMFC) anode and H 2 -PEMFC anode conditions. The MCNTs were either thin, entangled or thick, disentangled. Pretreatment of the MCNTs was also done and it was either high-temperature KOH etching or annealing (graphitization). The performance of the catalysts was compared against the performance of a commercial Pt–Ru catalyst supported on a high-surface-area carbon black. Among the different MCNT supports, the graphitized, entangled support offered the best performance in all tests, which was equal to the performance of the commercial catalyst, despite the MCNT catalyst layer was ca. 2.2 times thicker than the carbon black catalyst layer. Even for an MCNT catalyst layer, which was almost 7 times thicker than the carbon black catalyst layer, the transport limitations were not prohibitive. This confirmed the expected potential of nanotube supports for providing superior reactant transport properties of the PEMFC catalyst layers

  14. Standard practice for preparation and use of Bent-Beam stress-corrosion test specimens

    CERN Document Server

    American Society for Testing and Materials. Philadelphia

    2011-01-01

    1.1 This practice covers procedures for designing, preparing, and using bent-beam stress-corrosion specimens. 1.2 Different specimen configurations are given for use with different product forms, such as sheet or plate. This practice applicable to specimens of any metal that are stressed to levels less than the elastic limit of the material, and therefore, the applied stress can be accurately calculated or measured (see Note 1). Stress calculations by this practice are not applicable to plastically stressed specimens. Note 1—It is the nature of these practices that only the applied stress can be calculated. Since stress-corrosion cracking is a function of the total stress, for critical applications and proper interpretation of results, the residual stress (before applying external stress) or the total elastic stress (after applying external stress) should be determined by appropriate nondestructive methods, such as X-ray diffraction (1). 1.3 Test procedures are given for stress-corrosion testing by ex...

  15. Test plan for preparing the Rapid Transuranic Monitoring Laboratory for field deployment

    International Nuclear Information System (INIS)

    McIsaac, C.V.; Sill, C.W.; Gehrke, R.J.; Killian, E.W.; Watts, K.D.

    1994-04-01

    This plan describes experimental work that will be performed during fiscal year 1994 to prepare the Rapid Transuranic Monitoring Laboratory (RTML) for routine field use by US Department of Energy (DOE) Environmental Restoration and Waste Management programs. The RTML is a mobile, field-deployable laboratory developed at the Idaho National Engineering Laboratory (INEL) that provides a rapid, cost-effective means of characterizing and monitoring radioactive waste remediation sites for low-level radioactive contaminants. Analytical instruments currently installed in the RTML include an extended-range, germanium photon analysis spectrometer with an automatic sample changer; two, large-area, ionization chamber alpha spectrometers; and four alpha continuous air monitors. The RTML was field tested at the INEL during June 1993 in conjunction with the Buried Waste Integrated Demonstration's remote retrieval demonstration. The major tasks described in this test plan are to (a) evaluate the beta detectors for use in screening soil samples for 90 Sr, (b) upgrade the alpha spectral analysis software programs, and (c) upgrade the photon spectral analysis software programs

  16. 40 CFR 1051.305 - How must I prepare and test my production-line vehicles or engines?

    Science.gov (United States)

    2010-07-01

    ... production-line vehicles or engines? 1051.305 Section 1051.305 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR POLLUTION CONTROLS CONTROL OF EMISSIONS FROM RECREATIONAL ENGINES AND VEHICLES Testing Production-Line Vehicles and Engines § 1051.305 How must I prepare and test my production...

  17. 40 CFR 1048.410 - How must I select, prepare, and test my in-use engines?

    Science.gov (United States)

    2010-07-01

    ... my in-use engines? 1048.410 Section 1048.410 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR POLLUTION CONTROLS CONTROL OF EMISSIONS FROM NEW, LARGE NONROAD SPARK-IGNITION ENGINES Testing In-use Engines § 1048.410 How must I select, prepare, and test my in-use engines? (a) You...

  18. Style in Music

    Science.gov (United States)

    Dannenberg, Roger B.

    Because music is not objectively descriptive or representational, the subjective qualities of music seem to be most important. Style is one of the most salient qualities of music, and in fact most descriptions of music refer to some aspect of musical style. Style in music can refer to historical periods, composers, performers, sonic texture, emotion, and genre. In recent years, many aspects of music style have been studied from the standpoint of automation: How can musical style be recognized and synthesized? An introduction to musical style describes ways in which style is characterized by composers and music theorists. Examples are then given where musical style is the focal point for computer models of music analysis and music generation.

  19. Film Noir Style Genealogy

    OpenAIRE

    Rietuma, Dita

    2012-01-01

    Annotation for the Doctoral Work Film Noir Style Genealogy (The Genealogy of the Film Noir Style) The doctoral work topic Film Noir Style Genealogy encompasses traditionally approved world film theory views on the concept of film noir and its related cinematographic heritage, and an exploration of its evolution and distinctive style, including – the development of film noir in the USA, Europe, and also in Latvia, within the context of both socio-political progression and the paradigm of m...

  20. Creativity Styles and Emotional Intelligence of Filipino Student Teachers: A Search for Congruity

    Directory of Open Access Journals (Sweden)

    Gilbert C. Magulod Jr.

    2017-02-01

    Full Text Available The purpose of this study is to determine the congruity between the creativity styles and emotional intelligence of Filipino student teachers. Descriptive correlational research design was employed. The participants of the study were the 76 fourth year students of Bachelor in Elementary Education (BEED and Bachelor in Secondary Education (BSED in one state university in the Philippines. Data of the study were obtained using two standardized instruments relating to creativity styles and emotional intelligence. Findings of the study revealed that the student teachers espoused themselves to have high creative capacity while they assessed themselves to have high creativity styles along belief in unconscious processes, use of techniques, use of other people and final product orientation. With regards to their emotional intelligence, they assessed themselves to have high attributes on self-awareness, management of emotions, self-motivation, empathy and social skills. Significantly, this study also revealed that gender, birth order, course and scholastic standing in high school spelled differences on the creativity styles of Filipino student teachers. Moreover, test of difference also showed that scholastic standing in high school and family income defined differences along emotional intelligence. Finally, it was also revealed in the study that there is a significant relationship between creativity styles and emotional intelligence of Filipino student teachers. Implications of the congruity between emotional intelligence and creativity styles would help Teacher Education Institutions (TEIs to implement curriculum enhancement which is vital to the preparation of twenty-first century teachers.

  1. Carbon Monoxide Chemisorption- Characterization and Testing of Prepared Nickel Catalysts for Amination of Ethanol

    OpenAIRE

    Hanafi Setiawan, Achmad

    1994-01-01

    Three types of nickel metal catalyst supported on silica gel have been prepared using impregnation, ion exchanged sodium hydroxide and ion exchanged ammonia methods, in order to investigate the influence of preparation methods on metal dispersion and their activities for amination of ethanol. All the catalyst samples had a nominal nickel loading of 5 % (w/w). After preparation, the catalysts were activated by a drying stage followed by calcination and reduction. The result of transferring the...

  2. Properties and DEFC tests of nafion added functionalized titanate nanotubes prepared by extrusion

    International Nuclear Information System (INIS)

    Matos, B.R.; Goulart, C.A.; Isidoro, R.A.; Silva, J.S. da; Santiago, E.I.; Fonseca, F.C.; Tavares, A.C.

    2016-01-01

    Full text: Composite electrolyte membranes based on the incorporation of a second inorganic phase into ionomer matrices such as Nafion revealed to possess enhanced properties such as increased mechanical resistance and reduced permeability of solvents. It has been reported that surface functionalized titanate nanotubes (H2Ti3O7.nH2O) display a proton conductivity of ∼ 10-2 Scm-1, which is attractive for the use of such composites in direct ethanol fuel cells (DEFC). Herein, composite membranes based on the addition of sulfonic acid groups functionalized titanate nanotubes into Nafion matrix were prepared by grafting followed by extrusion. These membranes were characterized by infrared spectroscopy (FTIR), Brunauer-Emmett-Teller (BET), acid-base titration, proton conductivity measurements and DEFC tests. FTIR measurements confirmed both the grafting of the titanate nanotubes. BET measurements showed that the functionalized titanate nanotubes possess a high surface specific area. Acid-base titration evidenced that additional sulfonic acid groups are present in the composite membranes compared to the pristine ionomer. The conductivity measurements show that the increase in the titanate nanotube volume fraction into the ionomers has not resulted in a decrease of the proton conductivity. The results show that the addition of functionalized titanate nanotubes into Nafion polymer matrix resulted in an improvement of the electric transport properties, reduction of the fuel crossover and, consequently, a higher DEFC performance for the composites were observed with respect to the pristine Nafion. (author)

  3. Preparation, characterization, and testing of metal-doped carbon xerogels as catalyst for phenol CWAO.

    Science.gov (United States)

    Pleşa Chicinaş, Raluca; Coteţ, L Cosmin; Măicăneanu, Andrada; Vasilescu, Mihai; Vulpoi, Adriana

    2017-01-01

    Co-, Ce-, and Ni-doped carbon xerogels (Me-CX) synthesized by sol-gel method followed by an ion exchange process were used as catalysts for catalytic wet air oxidation (CWAO) of phenol. The prepared catalysts were characterized using TEM, SEM, BET surface area, and XRD. Me-CX catalysts were tested in mild conditions (20-60 °C, atmospheric pressure) in a semi-batch reactor in various reaction conditions (30-60 L/h, 0.05-0.2 g catalysts, 50-175 mg phenol/L). Total organic carbon (TOC) removal efficiency values obtained decrease in the following order Co-CX ≅ Ce-CX > Ni1-CX > K-CX for the catalysts obtained using the same procedure. TOC removal efficiencies of up to 72% were reached in case of Co-CX catalyst at 20 °C, 40 L/h, using 0.15 g catalyst and a solution of 100 mg phenol/L.

  4. Preparation and application of tea to a tritium performance testing programme

    International Nuclear Information System (INIS)

    Daka, J. N.; Moodie, G.; Dinardo, A.; Kramer, G. H.

    2012-01-01

    A simple, but novel technique, for adjusting steeps of black tea to produce fluids, which are visually and spectroscopically similar to urine, has been developed at the National Calibration Reference Centre for Bioassay and In Vivo Monitoring in Canada. The method uses scans of absorbance versus wavelength, in the UV-VIS range (200-800 nm) to select diluted tea steeps that simulate urine. Tea solutions (1 and 10 %) were spiked with tritium and distributed to laboratories for performance testing (PT). The PT exercise was done as in a regular bioassay programme. The results showed that all samples satisfied the pass/fail conditions of the S-106 standard of the Canadian Nuclear Safety Commission, suggesting that adjusted tea successfully simulated urine for the tritium PT programmes. Also, since unlike urine whose use may increase the probability of contaminating and transmitting diseases (e.g. hepatitis C), tea is a safer alternative. When needed, it can readily be prepared for the laboratories. (authors)

  5. Preparation, Characterization, and Preliminary In Vitro Testing of Nanoceria-Loaded Liposomes.

    Science.gov (United States)

    Grillone, Agostina; Li, Tianshu; Battaglini, Matteo; Scarpellini, Alice; Prato, Mirko; Takeoka, Shinji; Ciofani, Gianni

    2017-09-16

    Cerium oxide nanoparticles (nanoceria), well known for their pro- and antioxidant features, have been recently proposed for the treatment of several pathologies, including cancer and neurodegenerative diseases. However, interaction between nanoceria and biological molecules such as proteins and lipids, short blood circulation time, and the need of a targeted delivery to desired sites are some aspects that require strong attention for further progresses in the clinical application of these nanoparticles. The aim of this work is the encapsulation of nanoceria into a liposomal formulation in order to improve their therapeutic potentialities. After the preparation through a reverse-phase evaporation method, size, Z -potential, morphology, and loading efficiency of nanoceria-loaded liposomes were investigated. Finally, preliminary in vitro studies were performed to test cell uptake efficiency and preserved antioxidant activity. Nanoceria-loaded liposomes showed a good colloidal stability, an excellent biocompatibility, and strong antioxidant properties due to the unaltered activity of the entrapped nanoceria. With these results, the possibility of exploiting liposomes as carriers for cerium oxide nanoparticles is demonstrated here for the first time, thus opening exciting new opportunities for in vivo applications.

  6. Preparation of W/CuCrZr monoblock test mock-up using vacuum brazing technique

    International Nuclear Information System (INIS)

    Singh, Kongkham Premjit; Khirwadkar, Samir S.; Bhope, Kedar; Patel, Nikunj; Mokaria, Prakash K.; Mehta, Mayur

    2015-01-01

    Development of the joining for W/CuCrZr monoblock PFC test mock-up is an interest area in Fusion R and D. W/Cu bimetallic material has prepared using OFHC copper casting approach on the radial surface of W monoblock tile surface. The W/Cu bimetallic material has been joined with CuCrZr tube (heat sink) material with the vacuum brazing route. Vacuum brazing of W/Cu-CuCrZr has been performed @ 970 °C for 10 mins using NiCuMn-37 filler material under deep vacuum environment (10 -6 mbar). Graphite fixtures were used for OFHC copper casting and vacuum brazing experiments. The joint integrity of W/Cu-CuCrZr monoblock mock-up on W/Cu and Cu-CuCrZr has been checked using ultrasonic immersion technique. Micro-structural examination and Spot-wise elemental analysis have been carried out using HR-SEM and EDAX. The results of the experimental work will be discussed in the paper. (author)

  7. Preparation, Characterization, and Preliminary In Vitro Testing of Nanoceria-Loaded Liposomes

    Directory of Open Access Journals (Sweden)

    Agostina Grillone

    2017-09-01

    Full Text Available Cerium oxide nanoparticles (nanoceria, well known for their pro- and antioxidant features, have been recently proposed for the treatment of several pathologies, including cancer and neurodegenerative diseases. However, interaction between nanoceria and biological molecules such as proteins and lipids, short blood circulation time, and the need of a targeted delivery to desired sites are some aspects that require strong attention for further progresses in the clinical application of these nanoparticles. The aim of this work is the encapsulation of nanoceria into a liposomal formulation in order to improve their therapeutic potentialities. After the preparation through a reverse-phase evaporation method, size, Z-potential, morphology, and loading efficiency of nanoceria-loaded liposomes were investigated. Finally, preliminary in vitro studies were performed to test cell uptake efficiency and preserved antioxidant activity. Nanoceria-loaded liposomes showed a good colloidal stability, an excellent biocompatibility, and strong antioxidant properties due to the unaltered activity of the entrapped nanoceria. With these results, the possibility of exploiting liposomes as carriers for cerium oxide nanoparticles is demonstrated here for the first time, thus opening exciting new opportunities for in vivo applications.

  8. Survival, Pb-uptake and behaviour of three species of earthworm in Pb treated soils determined using an OECD-style toxicity test and a soil avoidance test

    Energy Technology Data Exchange (ETDEWEB)

    Langdon, Caroline J. [Department of Soil Science, School of Human and Environmental Sciences, University of Reading, Whiteknights, Reading, Berkshire, RG6 6DW (United Kingdom)]. E-mail: clangdon@uclan.ac.uk; Hodson, Mark E. [Department of Soil Science, School of Human and Environmental Sciences, University of Reading, Whiteknights, Reading, Berkshire, RG6 6DW (United Kingdom)]. E-mail: m.e.hodson@reading.ac.uk; Arnold, Rebecca E. [Department of Soil Science, School of Human and Environmental Sciences, University of Reading, Whiteknights, Reading, Berkshire, RG6 6DW (United Kingdom); Black, Stuart [Department of Archaeology, School of Human and Environmental Sciences, University of Reading, Whiteknights, Reading, Berkshire, RG6 6AB (United Kingdom)

    2005-11-15

    Mature (clitellate) Eisenia andrei Bouche (ultra epigeic), Lumbricus rubellus Hoffmeister (epigeic), and Aporrectodea caliginosa (Savigny) (endogeic) earthworms were placed in soils treated with Pb(NO{sub 3}){sub 2} to have concentrations in the range 1000 to 10 000 mg Pb kg{sup -1}. After 28 days LC50{sub -95%confidencelimit}{sup +95%confidencelimi}= {sup t} values were E. andrei5824{sub -361}{sup +898} mg Pb kg{sup -1}, L. rubellus2867{sub -193}{sup +145} mg Pb kg{sup -1} and A. caliginosa2747{sub -304}{sup +239} mg Pb kg{sup -1} and EC50s for weight change were E. andrei2841{sub -68}{sup +150} mg Pb kg{sup -1}, L. rubellus1303{sub -201}{sup +240} mg Pb kg{sup -1} and A. caliginosa1208{sub -206}{sup +212} mg Pb kg{sup -1}. At any given soil Pb concentration, Pb tissue concentrations after 28 days were the same for all three earthworm species. In a soil avoidance test there was no difference between the behaviour of the different species. The lower sensitivity to Pb exhibited by E. andrei is most likely due to physiological adaptations associated with the modes of life of the earthworms, and could have serious implications for the use of this earthworm as the species of choice in standard toxicological testing.

  9. Starlink Document Styles

    Science.gov (United States)

    Lawden, M. D.

    This document describes the various styles which are recommended for Starlink documents. It also explains how to use the templates which are provided by Starlink to help authors create documents in a standard style. This paper is concerned mainly with conveying the ``look and feel" of the various styles of Starlink document rather than describing the technical details of how to produce them. Other Starlink papers give recommendations for the detailed aspects of document production, design, layout, and typography. The only style that is likely to be used by most Starlink authors is the Standard style.

  10. Different Styles for Different Needs – The Effect of Cognitive Styles on Idea Generation

    OpenAIRE

    Lomberg, Carina; Kollmann, Tobias; Stockmann, Christoph

    2017-01-01

    Researchers are engaged in finding the precursors for innovation. Drawing on Kirton's Adaption-Innovation (KAI) Inventory, we explicitly test Kirton's central premise that cognitive styles differentiate between preferences for producing ideas in a certain way. We argue that the generation of either a magnitude or original ideas is governed by different underlying cognitive styles. In a study with 191 individuals, we find that the cognitive style originality associates with ideational fluency ...

  11. Parenting Style as a Moderator for Students' Academic Achievement

    Science.gov (United States)

    Ishak, Zahari; Low, Suet Fin; Lau, Poh Li

    2012-01-01

    Parenting styles have always been a crucial factor in influencing all aspects of a person's development. The purpose of this study is to test the structural equation model of academic achievement among the students using parenting styles as a moderator. The sample comprised 493 students from eight schools. Parenting styles are determined using the…

  12. STUDY OF INFLUENCE OF PREVIOUS ORAL APPLICATION OF DIPHTHERIA ANTIGENIC PREPARATIONS ON RABBIT ALLERGIC REACTION FORMING AFTER SKIN TEST

    Directory of Open Access Journals (Sweden)

    Babych YeM

    2013-03-01

    Full Text Available It’s studied an influence of previous oral application of diphtheria antigenic preparations on allergic inflammation forming after skin test. It’s used destroyed by ultrasonic microbe cells C.diphtheriae var. gravis tox+ massachusets, free from destroyed cells by the use of centrifugation supernatant and refined concentrated diphteria toxoid. Experimental rabbits are fed to 3,5 ml of one of antigenic preparations (the total protein dose is 33,6 mg, control ones are fed to saline. In a week all animals were injected intracutaneously 0,2 ml each of corresponding antigenic preparation. The findings testify to decreasing manifestation tendency of rabbit skin reactions on antigenic preparations.

  13. How to prepare water accommodated fractions from petroleum hydrocarbons for use in aquatic toxicity testing - the basics

    International Nuclear Information System (INIS)

    Blenkinsopp, S.; Boileau, P.; Kyle, D.; Sergy, G.; Fingas, M.

    1996-01-01

    A method to prepare water accommodated fractions (WAFs) from petroleum products for use in toxicity testing, was introduced. In order to develop a repeatable protocol, a systematic study of a range of experimental variables was conducted. One semi-solid oil and six liquid oils were exposed to artificial seawater. Studies were also performed on three liquid oils exposed to freshwater. Low energy mixing and fluorinated Nalgene carboys was used to produce the WAFs. The mixing time depended on the oil type and loading rate. Individual loading rates were prepared for each concentration, because WAF composition is influenced by loading rate rather than serial dilution. An overview of the basic concepts of WAF preparation was described. A draft protocol for preparing WAFs from liquid and semi-solid oil was also described and results were summarized. 5 refs., 3 tabs., 6 figs

  14. An experimental test of the impact of style and rhetoric on the perception of right-wing populist and mainstream party leaders

    NARCIS (Netherlands)

    Bos, L.; van der Brug, W.; de Vreese, C.H.

    2013-01-01

    It has often been argued that the communication strategies used by right-wing populists are key to their appeal to voters. However, prior studies found only rather limited across-the-board effects of communication strategies that employ a populist style and rhetoric. In this study, we focus on the

  15. Maximum Acceptable Weight of Lift reflects peak lumbosacral extension moments in a Functional Capacity Evaluation test using free style, stoop, and squat lifting

    NARCIS (Netherlands)

    Kuijer, P.P.F.M.; van Oostrom, S.H.; Duijzer, K.; van Dieen, J.H.

    2012-01-01

    It is unclear whether the maximum acceptable weight of lift (MAWL), a common psychophysical method, reflects joint kinetics when different lifting techniques are employed. In a within-participants study (n = 12), participants performed three lifting techniques - free style, stoop and squat lifting

  16. Maximum acceptable weight of lift reflects peak lumbosacral extension moments in a functional capacity evaluation test using free style, stoop and squat lifting

    NARCIS (Netherlands)

    Kuijer, P. P. F. M.; van Oostrom, S. H.; Duijzer, K.; van Dieën, J. H.

    2012-01-01

    It is unclear whether the maximum acceptable weight of lift (MAWL), a common psychophysical method, reflects joint kinetics when different lifting techniques are employed. In a within-participants study (n = 12), participants performed three lifting techniques - free style, stoop and squat lifting

  17. Drop Tower tests in preparation of a Tethered Electromagnetic Docking space demonstration

    Science.gov (United States)

    Olivieri, Lorenzo; Francesconi, Alessandro; Antonello, Andrea; Bettiol, Laura; Branz, Francesco; Duzzi, Matteo; Mantellato, Riccardo; Sansone, Francesco; Savioli, Livia

    2016-07-01

    A group of students of the University of Padova is recently developing some technologies to implement a Tethered Electromagnetic Docking (TED) experiment, a novel system for close rendezvous and mating manoeuvres between two spacecraft, consisting in a small tethered probe ejected by the chaser and magnetically guided by a receiving electromagnet mounted on the target. Because of the generated magnetic field, automatic self-alignment and mating are possible; then, as the tether is rewinded, the chaser is able to dock with the target. This concept allows to simplify standard docking procedures, thanks to the reduction of proximity navigation and guidance requirements, as well as consequent fuel reduction. Other interesting applications are expected, from active debris removal to space tugging; in particular, the utilization of the tethered connection for detumbling operations is considered. The realization of a space demonstrator requires a preliminary verification of the critical technologies employed in TED, in particular the magnetic guidance and the probe deploy and retrieve; in the framework of ESA "Drop your Thesis!" 2014 and 2016 campaigns the experiments FELDs (Flexible Electromagnetic Leash Docking system) and STAR (System for Tether Automatic Retrieval) have been focused on the test of such critical elements in the relevant microgravity environment of ZARM Drop Tower in Bremen. In particular, FELDs consisted in a simplified model of TED with a magnetic target interface, a passive tethered probe and its launch system: the experiment allowed to assess the passive self-alignment of the probe with respect to the target and to study the effect of friction between the tether and the release system. Similarly, STAR is investigating the tether actively controlled deployment and retrieval, with the experiment campaign planned on November 2016. In addition, another microgravity experiment is in preparation for the investigation of active magnetic navigation: PACMAN

  18. Association Between Maternal Depressogenic Cognitive Style During Pregnancy and Offspring Cognitive Style 18 Years Later

    Science.gov (United States)

    Fernyhough, Charles; Bentall, Richard; Evans, Jonathan; Heron, Jon; Joinson, Carol; Stein, Alan L.; Lewis, Glyn

    2013-01-01

    Objective Understanding the origins of negative cognitive style could provide a means to prevent adult depression. Cognitive style is an important target for intervention because although it is not possible to remove the stress and adversities in people’s lives, it may be possible to modify interpretation of such adversities through cognitive style. Children may develop a negative cognitive style through modeling the style of their mothers. However, findings have been inconsistent on the association. The authors tested the hypothesis that there is an independent association between maternal and offspring depressogenic cognitive style. Method Data from over 4,000 mothers and children from the Avon Longitudinal Study of Parents and Children cohort study in the United Kingdom were used to investigate the association between maternal depressogenic cognitive style before the offspring’s birth and the offspring’s depressogenic cognitive style at age 18. Results A positive association was observed between maternal and offspring cognitive styles: a one-standard-deviation increase in maternal depressogenic cognitive style score during pregnancy was significantly associated with a mean increase of 0.1 standard deviations in offspring depressogenic cognitive style score at age 18. This effect remained after adjusting for maternal and offspring depression and explained 21% of the association between maternal and offspring depression. Conclusions Although the mechanisms remain to be elucidated, the findings are consistent with the idea that a mother’s cognitive style (irrespective of her depression status) influences that of her child. This suggests that interventions to improve a mother’s cognitive style could help prevent her offspring from developing depression during adulthood. PMID:23318526

  19. Preparations for a train-to-train impact test of crash-energy management passenger rail equipment

    Science.gov (United States)

    2005-03-16

    Preparations are ongoing for a full-scale train-to-train : impact test of crash-energy management (CEM) equipment, : during which a cab car-led passenger consist, initially moving : at 30 mph, will impact a standing locomotive-led consist. The : coll...

  20. Safety assessment of botanicals and botanical preparations used as ingredients in food supplements: Testing an EFS tired approach

    NARCIS (Netherlands)

    Speijers, G.; Bottex, B.; Dusemund, B.; Lugasi, A.; Toth, J.; Amberg-Muller, J.; Galli, C.; Silano, V.; Rietjens, I.

    2010-01-01

    This article describes results obtained by testing the European Food Safety Authority-tiered guidance approach for safety assessment of botanicals and botanical preparations intended for use in food supplements. Main conclusions emerging are as follows. (i) Botanical ingredients must be identified

  1. A novel approach for preparation and in situ tensile testing of silica glass membranes in the TEM

    Science.gov (United States)

    Mačković, Mirza; Przybilla, Thomas; Dieker, Christel; Herre, Patrick; Romeis, Stefan; Stara, Hana; Schrenker, Nadine; Peukert, Wolfgang; Spiecker, Erdmann

    2017-04-01

    The mechanical behavior of glasses in the micro- and/or nanometer regime increasingly gains importance in nowadays modern technology. However, suitable small scale preparation and mechanical testing approaches for a reliable assessment of the mechanical properties of glasses still remain a big challenge. In the present work, a novel approach for site-specific preparation and quantitative in situ tensile testing of thin silica glass membranes in the transmission electron microscope is presented. Thereby, advanced focused ion beam techniques are used for the preparation of nanoscale dog bone shaped silica glass specimens suitable for in situ tensile testing. Small amounts of gallium are detected on the surface of the membranes resulting from redeposition effects during the focused ion beam preparation procedure. Possible structural changes of silica glass upon irradiation with electrons and gallium ions are investigated by controlled irradiation experiments, followed by a structural analysis using Raman spectroscopy. While moderate electron beam irradiation does not alter the structure of silica glass, ion beam irradiation results in minor densification of the silica glass membranes. In situ tensile testing of membranes under electron beam irradiation results in distinctive elongations without fracture confirming the phenomenon of superplasticity. In contrast, in situ tensile testing in the absence of the electron beam reveals an elastic/plastic deformation behavior, and finally leads to fracture of the membranes. The Young’s moduli of the glass membranes pulled at beam off conditions in the TEM are comparable with values known for bulk fused silica, while the tensile strength is in the range of values reported for silica glass fibers with comparable dimensions. The impact of electron beam irradiation on the mechanical properties of silica glass membranes is further discussed. The results of the present work open new avenues for dedicated preparation and

  2. Leadership styles and theories.

    Science.gov (United States)

    Giltinane, Charlotte Louise

    It is useful for healthcare professionals to be able to identify the leadership styles and theories relevant to their nursing practice. Being adept in recognising these styles enables nurses to develop their skills to become better leaders, as well as improving relationships with colleagues and other leaders, who have previously been challenging to work with. This article explores different leadership styles and theories, and explains how they relate to nursing practice.

  3. Maternal socialization goals, parenting styles, and social-emotional adjustment among Chinese and European American young adults: testing a mediation model.

    Science.gov (United States)

    Li, Yan; Costanzo, Philip R; Putallaz, Martha

    2010-01-01

    The authors compared the associations among perceived maternal socialization goals (self-development, filial piety, and collectivism), perceived maternal parenting styles (authoritative, authoritarian, and training), and the social-emotional adjustment (self-esteem, academic self-efficacy, and depression) between Chinese and European American young adults. The mediation processes in which socialization goals relate to young adults' adjustment outcomes through parenting styles were examined. Results showed that European American participants perceived higher maternal self-development socialization goals, whereas Chinese participants perceived higher maternal collectivism socialization goals as well as more authoritarian parenting. Cross-cultural similarities were found in the associations between perceived maternal authoritative parenting and socioemotional adjustment (e.g., higher self-esteem and higher academic self-efficacy) across the two cultural groups. However, perceived maternal authoritarian and training parenting styles were found only to be related to Chinese participants' adjustment (e.g., higher academic self-efficacy and lower depression). The mediation analyses showed that authoritative parenting significantly mediated the positive associations between the self-development and collectivism goal and socioemotional adjustment for both cultural groups. Additionally, training parenting significantly mediated the positive association between the filial piety goal and young adults' academic self-efficacy for the Chinese group only. Findings of this study highlight the importance of examining parental socialization goals in cross-cultural parenting research.

  4. 40 CFR 86.1910 - How must I prepare and test my in-use engines?

    Science.gov (United States)

    2010-07-01

    ... consistent with proper maintenance and use, either test the prospective test vehicle as received or repair the vehicle before testing. If you elect to repair the vehicle/engine, but ultimately determine that repairs cannot be completed in a timely manner, you may reject the vehicle from the test program and...

  5. Leader Communication Style: Toward the Development of a Multi-Dimensional Model.

    Science.gov (United States)

    Ganster, Daniel C.; And Others

    A semantic-differential model of communicator style was tested by collecting data from 108 superior-subordinate dyads at a medium-sized midwestern company. Communication style variables were measured with Norton's Communicator Style Measure (CSM), which was modified slightly to give both superiors' self-evaluations of communication styles and…

  6. Style as Supplement - Supplement as Style

    DEFF Research Database (Denmark)

    Sørensen, Bent

    as a meta-documentary, or an always-already deconstructed communication mainly dealing with the act of communicating about philosophy, rather than communicating philosophical insight as such. Philosophy is thus shown to be communication, transmission, situated and framed speech acts - supplements...... and deferrals. This is of course another link in the infinite Derridean chain of supplements to supplements of supplements - in his writings, his persona and the legacy of images of him left behind in the archives. How does this perpetual deferral reflect itself in Derrida's visual and verbal style......, or inversely how does his style always/already produce these supplements and deferrals?...

  7. Development Model of Basic Technique Skills Training Shot-Put Obrien Style Based Biomechanics Review

    Directory of Open Access Journals (Sweden)

    danang rohmat hidayanto

    2018-03-01

    Full Text Available The background of this research is the unavailability of learning model of basic technique technique of O'Brien style force that integrated in skill program based on biomechanics study which is used as a reference to build the basic technique skill of the O'Brien style force among students. The purpose of this study is to develop a model of basic-style technique of rejecting the O'Brien-style shot put based on biomechanical studies for beginner levels, including basic prefix technique, glide, final stage, repulsion, further motion and repulsion performance of O'Brien style, all of which arranged in a medium that is easily accessible whenever, by anyone and anywhere, especially in SMK Negeri 1 Kalijambe Sragen . The research method used is "Reasearch and Developement" approach. "Preliminary studies show that 43.0% of respondents considered that the O'Brien style was very important to be developed with a model of skill-based exercise based on biomechanics, as many as 40.0% ressponden stated that it is important to be developed with biomechanics based learning media. Therefore, it is deemed necessary to develop the learning media of the O'Brien style-based training skills based on biomechanical studies. Development of media starts from the design of the storyboard and script form that will be used as media. The design of this model is called the draft model. Draft models that have been prepared are reviewed by the multimedia expert and the O'Brien style expert to get the product's validity. A total of 78.24% of experts declare a viable product with some input. In small groups with n = 6, earned value 72.2% was obtained or valid enough to be tested in large groups. In the large group test with n = 12,values obtained 70.83% or quite feasible to be tested in the field. In the field test, experimental group was prepared with treatment according to media and control group with free treatment. From result of counting of significance test can be

  8. The Effect of Management Style on Encouraging Creativity in a Work Group

    Directory of Open Access Journals (Sweden)

    Uroš Bižal

    2013-10-01

    Full Text Available Research Question (RQ: Whether and how the manager with his management style affects the creativity of employees in departmentproduction preparation?Purpose: The purpose is to examine the management style through the eyes of managers and employees. In addition, the purpose was todiscover the optimal management style to be used by the manager tomaintain maximum creative employees in a work group.Method: The method used was to review existing literature and quantitative analysis of a closed - type questionnaire. Data analysiswas performed by using the average value, dependent ANOVA test andPearson correlation coefficient.Results: The results of the study provided a deeper insight into themanagement of the studied work group. Managers and most of the workers assessed management style as a dense (unified, but other tendencies were also visible. Employees estimated that in the workplace creativity is promoted with dense (unified management style, and partly contributes to the goal achievement with an ambitious management style.Organization: The organization will analyse the results and, if necessary, introduce improvements to procedures to improve overallbusiness excellence.Society: Study was conducted in one of the fastest growing companiesin the Dolenjska - Posavje region in which they are aware of theresponsibilities and role model to other businesses in the region,which is reflected in the constant care for employees withappropriate conditions for work and education, decent wages andbonuses. This is all cared for by responsible and capable management.Originality: This is the first research study of this type in the company studied.Limitations/Future Research: This study was conducted only in the production preparation department, but such an analysis should be implemented within other departments.

  9. Page Styles on steroids

    DEFF Research Database (Denmark)

    Madsen, Lars

    2008-01-01

    Designing a page style has long been a pain for novice users. Some parts are easy; others need strong LATEX knowledge. In this article we will present the memoir way of dealing with page styles, including new code added to the recent version of memoir that will reduce the pain to a mild annoyance...

  10. Library Automation Style Guide.

    Science.gov (United States)

    Gaylord Bros., Liverpool, NY.

    This library automation style guide lists specific terms and names often used in the library automation industry. The terms and/or acronyms are listed alphabetically and each is followed by a brief definition. The guide refers to the "Chicago Manual of Style" for general rules, and a notes section is included for the convenience of individual…

  11. Example based style classification

    DEFF Research Database (Denmark)

    Welnicka, Katarzyna; Bærentzen, Jakob Andreas; Aanæs, Henrik

    2011-01-01

    We address the problem of analysis of families of shapes which can be classified according to two categories: the main one corresponding usually to the coarse shape which we call the function and the more subtle one which we call the style. The style and the function both contribute to the overal...

  12. Codependency and Parenting Styles.

    Science.gov (United States)

    Fischer, Judith L.; Crawford, Duane W.

    1992-01-01

    College students (n=175) reported the parenting style of their mother and father and completed a scale assessing their own level of codependency. Parenting style of the father (uninvolved, permissive, authoritarian, or democratic) was related to offspring codependency. Both sons and daughters of authoritarian fathers had higher levels of…

  13. Rondocubism versus National Style

    Czech Academy of Sciences Publication Activity Database

    Hnídková, Vendula

    -, 8 November (2010), s. 1-21 ISSN 2190-3328 Institutional research plan: CEZ:AV0Z80330511 Keywords : National Style * Czech architecture * Czech design Subject RIV: AL - Art, Architecture, Cultural Heritage http://www.riha-journal.org/articles/2010/hnidkova-rondocubism-versus-national-style

  14. Goleman's Leadership styles at different hierarchical levels in medical education.

    Science.gov (United States)

    Saxena, Anurag; Desanghere, Loni; Stobart, Kent; Walker, Keith

    2017-09-19

    With current emphasis on leadership in medicine, this study explores Goleman's leadership styles of medical education leaders at different hierarchical levels and gain insight into factors that contribute to the appropriateness of practices. Forty two leaders (28 first-level with limited formal authority, eight middle-level with wider program responsibility and six senior- level with higher organizational authority) rank ordered their preferred Goleman's styles and provided comments. Eight additional senior leaders were interviewed in-depth. Differences in ranked styles within groups were determined by Friedman tests and Wilcoxon tests. Based upon style descriptions, confirmatory template analysis was used to identify Goleman's styles for each interviewed participant. Content analysis was used to identify themes that affected leadership styles. There were differences in the repertoire and preferred styles at different leadership levels. As a group, first-level leaders preferred democratic, middle-level used coaching while the senior leaders did not have one preferred style and used multiple styles. Women and men preferred democratic and coaching styles respectively. The varied use of styles reflected leadership conceptualizations, leader accountabilities, contextual adaptations, the situation and its evolution, leaders' awareness of how they themselves were situated, and personal preferences and discomfort with styles. The not uncommon use of pace-setting and commanding styles by senior leaders, who were interviewed, was linked to working with physicians and delivering quickly on outcomes. Leaders at different levels in medical education draw from a repertoire of styles. Leadership development should incorporate learning of different leadership styles, especially at first- and mid-level positions.

  15. AUTOMATIC ARCHITECTURAL STYLE RECOGNITION

    Directory of Open Access Journals (Sweden)

    M. Mathias

    2012-09-01

    Full Text Available Procedural modeling has proven to be a very valuable tool in the field of architecture. In the last few years, research has soared to automatically create procedural models from images. However, current algorithms for this process of inverse procedural modeling rely on the assumption that the building style is known. So far, the determination of the building style has remained a manual task. In this paper, we propose an algorithm which automates this process through classification of architectural styles from facade images. Our classifier first identifies the images containing buildings, then separates individual facades within an image and determines the building style. This information could then be used to initialize the building reconstruction process. We have trained our classifier to distinguish between several distinct architectural styles, namely Flemish Renaissance, Haussmannian and Neoclassical. Finally, we demonstrate our approach on various street-side images.

  16. The method of preparation and use of vasectomized stallions to regulate the sexual function in mares during hippodrome testing

    Directory of Open Access Journals (Sweden)

    Nursulu Julanova

    2016-01-01

    Full Text Available The objective of this study was to develop a method of preparation and use of vasectomized stallions, and to test them as a factor preventing genital functional disorders in mares during training and hippodrome testing. Thoroughbred mares of English, Arabic and Akhal-Teke breeds owned by horse ranches of the Republic of Kazakhstan were used in the research. Vasectomy techniques were mastered on a slaughtering material, and then field tested on stallions. A series of experiments were set for comparative evaluation of various methods of preparation and use of a vasectomized stallion, resulting in a technique based on removing the front section of sperm ducts in the ventro-caudal portion of the scrotum. The developed method is convenient, safe, and easy to perform in field conditions. The surgery is not time consuming, and there are no postoperative complications. We found a positive effect of the vasectomized stallion on the course of the mares’ oestrous cycles, on their performance during hippodrome testing, and their reproductive function. The method reduced the standing heat period, and the mares quickly recovered their performance. Thus, it decreased the time of the mares’ elimination from the training schedule and had a positive effect on the performance during hippodrome testing. The use of a vasectomized stallion during training significantly predetermined the course of the mares’ reproductive cycle after completion of the hippodrome testing. The results of this study are relevant to the practical needs of sport horse breeding.

  17. The specification of the linguistic content for a TOEFL preparation course based on test content analysis

    OpenAIRE

    Eşme, Aysun

    1998-01-01

    Ankara : Institute of Economics and Social Sciences Bilkent University,The Teaching English as a Foreign Language, 1998. Thesis (Master's) -- Bilkent University, 1998. Includes bibliographical refences. Language proficiency tests measure a test taker's overall ability in a given language. A world popular and prestigious language proficiency test, the TOEFL (Test of English as a Foreign Language) measures the ability to understand North American English. It is a means of eval...

  18. Preparation and Support of a Tap Test on the Leading Edge Surfaces of the Space Shuttle

    Science.gov (United States)

    Bohr, Jerry

    2009-01-01

    This slide presentation reports on a Tap test for the leading edge surfaces of the Space Shuttle. A description of the Wing Leading Edge Impact Detection System (WLEIDS) flight system is given, and the rationale and approach for improving the WLEIDS system. The three phases of the strategy of the test project amd the results of the tests are reviewed.

  19. Overeating styles and adiposity among multiethnic youth

    OpenAIRE

    Ledoux, Tracey; Watson, Kathy; Baranowski, Janice; Tepper, Beverly J.; Baranowski, Tom

    2010-01-01

    Reasons for inconsistent associations between overeating styles and adiposity among youth may include differences in effects by age, gender, or ethnicity; failure to control for social desirability of response; or adiposity measurement limitations. This study examined the relationship between overeating styles and multiple measures of adiposity, after controlling for social desirability and testing for moderation by ethnicity, age, and gender. Data from 304 9–10 year old children and 264 17–1...

  20. Style representation in design grammars

    DEFF Research Database (Denmark)

    Ahmad, Sumbul; Chase, Scott Curland

    2012-01-01

    to be transformed according to changing design style needs. Issues of formalizing stylistic change necessitate a lucid and formal definition of style in the design language generated by a grammar. Furthermore, a significant aspect of the definition of style is the representation of aesthetic qualities attributed...... to the style. We focus on grammars for representing and generating styles of design and review the use of grammar transformations for modelling changes in style and design language. We identify a gap in knowledge in the representation of style in grammars and in driving strategic style change using grammar...

  1. Valuing goodwill: not-for-profits prepare for annual impairment testing.

    Science.gov (United States)

    Heuer, Christian; Travers, Mary Ann K

    2011-02-01

    Accounting standards for valuing goodwill and intangible assets are becoming more rigorous for not-for-profit organizations: Not-for-profit healthcare organizations need to test for goodwill impairment at least annually. Impairment testing is a two-stage process: initial analysis to determine whether impairment exists and subsequent calculation of the magnitude of impairment. Certain "triggering" events compel all organizations--whether for-profit or not-for-profit--to perform an impairment test for goodwill or intangible assets.

  2. Non destructive testing of new preparations of lithium borate. Application to radiothermoluminescence dosimetry

    International Nuclear Information System (INIS)

    David, J.P.

    1986-06-01

    Summary - We recall at first some basic notions about cristalline luminescence phenomena and the different methods analysing thermoluminescence peaks. In the second part, we propose to define a way to prepare various lithium borates doped with either transition or rare-earth elements. This material whose electronic density is close to that of human tissue presents interesting applications in radiotherapy. The activator choice being made according to the best characteristics given, the resulting product is studied. Its dosimetric properties are compared with those of current standard materials used in medical or radioprotection dosimetry [fr

  3. In Vitro Preparation And Testing Of Anti-Salmonella Vaccine Against Abortion In Sheep

    OpenAIRE

    Flore CHIRILA; George Cosmin NADAS; Sorin RAPUNTEAN; Cosmina Maria BOUARI; Septimiu TOADER; Petru BERCE; Andreea SZEKELY; Nicodim Iosif FIT

    2017-01-01

    Abstract: In March 2016, the microbiology laboratory of the Faculty of Veterinary Medicine in Cluj-Napoca, 3 type of antisalmonella vaccine for sheep were prepared. For type 1, 24 hours salmonella on brain heart infusion (BHI) broth culture, heat inactivated for 1 hour at 60°C, then with formaldehyde in a concentration of 3 ‰. Variant 2 - the culture supernatant obtained on solid BHI medium, washed with PBS, frozen-thawed 6 times, centrifuged at 4000 rpm for 15 minutes, filtered through 0....

  4. Preparation, characterization and use of a reference material to proficiency testing for determination of metals in fish tissue in natura

    International Nuclear Information System (INIS)

    Santana, Luciana Vieira de

    2013-01-01

    The proficiency tests are widely used to evaluate the analytical capacity of laboratories and also as part of the accreditation process. For this reason, are important tools for the control of the quality of the analytical results obtained in the laboratories that work directly with seafood companies. In Brazil there are no providers of proficiency testing for metals potentially toxic in fish tissues. In this work will be described all steps used for the production of reference materials to be used in a proficiency testing pilot study for As, Cd, Pb and Hg in fish tissue following the recommendations of the ISO Guide 35. He preparation scheme consisted in selecting the individuals, cleaning, grinding, homogenization and fortification with As, Cd and Pb in two concentration levels. The preparation resulted in 164 sachets of 10 g each. In order to evaluate the effect of gamma irradiation in the samples conservation 52 sachets were irradiated with 60 Co (10.00 ± 1.05 kGy) in a gamma cell. This material with others non irradiated 52 sachets were used for the homogeneity and stability studies. The remaining 60 were used for the proficiency testing. The results demonstrated that both materials were homogeneous and presented good stability (during a period of 45 days). However, the irradiated material present better integrity, concerning biological degradation, when stored in ambient temperature. For this reason they were used to the proficiency testing pilot program. Ten laboratories participated in the proficiency testing pilot study and the results were evaluated using the following tests: z-score, confidence ellipse and En numbers. This work demonstrates the capability of the laboratory to produce reference materials as well as to organize and conduct proficiency testing. (author)

  5. ACT/SAT Test Preparation and Coaching Programs. What Works Clearinghouse Intervention Report

    Science.gov (United States)

    What Works Clearinghouse, 2016

    2016-01-01

    Most colleges and universities in the United States require students to take the SAT or ACT as part of the college application process. These tests are high stakes in at least three ways. First, most universities factor scores on these tests into admissions decisions. Second, higher scores can increase a student's chances of being admitted to…

  6. Academic Performance in Predominantly Black Nursing Classes: Effects Associated with Intervention Designed for Standardized Test Preparation.

    Science.gov (United States)

    Frierson, Henry T., Jr.

    1987-01-01

    One hundred fifty-two senior nursing students at a traditionally Black college participated in a study to determine the effect on academic performance of: (1) test-taking instruction; (2) a combination of test-taking instruction with cooperative learning procedures; or (3) no intervention. Spring semester grades were used to represent academic…

  7. Self-Assessment, Preparation and Response Time on a Computerized Oral Proficiency Test

    Science.gov (United States)

    Malabonga, Valerie; Kenyon, Dorry M.; Carpenter, Helen

    2005-01-01

    Two studies investigated technical aspects of a computer-mediated test, the Computerized Oral Proficiency Instrument (COPI), particularly in contrast to a similar tape-mediated test, the Simulated Oral Proficiency Interview (SOPI). The first study investigated how examinees used self-assessment to choose an appropriate starting level on the COPI.…

  8. Thinking Styles: Teaching and Learning Styles in Graduate Education Students

    Science.gov (United States)

    Clarke, Tricia A.; Lesh, Jennifer J.; Trocchio, Jennie S.; Wolman, Clara

    2010-01-01

    This study investigated the relationship between two intellectual styles approaches: Sternberg's thinking styles of teachers and Felder and Silverman's learning styles. Ninety-five graduate students majoring in special education, reading, educational leadership and curriculum, and elementary education completed the Thinking Styles in Teaching…

  9. The impact of group training about parenting styles on maternal attitudes toward parenting styles.

    Science.gov (United States)

    Zandiyeh, Zahra; Zare, Elaheh; Hedayati, Batool

    2015-01-01

    Parenting style is one of the most important and effective factors in training and growth of children and adolescents and the method that parents communicate with their children is an effective factor on family contact models. The aim of this study was to determine the impact of group training about parenting styles on maternal attitudes that were admitted to Isfahan Imam Ali (AS) health care center in 2013. This was an experimental study, which was conducted on a random sample of 25 mothers referred to this health care center. They were divided into two groups (experimental and control). The experimental group received five sessions of group training, and the control group received a booklet about parenting styles. The used tool in this study was the Bamerind Parenting Style Questionnaire that was completed by the mothers before and after the intervention and finally, their obtained scores were compared with each other. The results of the present study showed that the mean score of attitude toward easy-going style in test group was less than the control group after intervention (P = 0.045). The mean score of attitude toward authoritative style in the experimental group was less than control group after intervention (P = 0.037) and the mean score of attitude toward authoritative style in the experimental group was more than the control group after intervention (P = 0.011). Group training can be an appropriate method in changing maternal attitudes toward parenting styles.

  10. Stereotype threat and female communication styles.

    Science.gov (United States)

    von Hippel, Courtney; Wiryakusuma, Cindy; Bowden, Jessica; Shochet, Megan

    2011-10-01

    A large body of research has documented the performance-debilitating effects of stereotype threat for individuals, but there is a paucity of research exploring interpersonal consequences of stereotype threat. Two experiments tested the hypothesis that stereotype threat would change the style in which women communicate. Results indicate that women who experience stereotype threat regarding leadership abilities react against the stereotype by adopting a more masculine communication style. Study 2 provides evidence that self-affirmation eliminates this effect of stereotype threat on women's communication styles. A third study demonstrates an ironic consequence of this effect of stereotype threat on women's communication--when women under stereotype threat adopt a more masculine communication style, they are rated as less warm and likeable, and evaluators indicate less willingness to comply with their requests. Theoretical and practical implications of these findings are discussed.

  11. Comments on Liz Hamp-Lyons'"Ethical Test Preparation Practice: The Case of TOEFL. Polemic Gone Astray: A Corrective to Recent Criticism of TOEFL Preparation [and] the Author Responds.

    Science.gov (United States)

    Wadden, Paul; Hilke, Robert; Hamp-Lyons, Liz

    1999-01-01

    Provides a form of argumentative dialectic to Liz Hamp-Lyons's forum commentary published in an earlier issue of this journal, "Ethical Test Preparation Practice: The Case of TOEFL." Hamp-Lyons responds to the comments.(Author/VWL)

  12. Use of micronucleus test in evaluating radioprotective action of mixed tremella preparation

    International Nuclear Information System (INIS)

    Lu Jiaben; Huang Yinmei; Zhu Bingchai

    1993-01-01

    The radioprotective action of mixed tremella preparation (Yinshen Yin) on whole body gamma irradiated dogs has been studied. 25 male dogs were divided into five groups: tremella, mercaminum, Yinshen Yin at high dose, Yinshen Yin at low dose and control. All the dogs were given above drugs in 10 successive days before acute exposure of 1 Gy radiation. The results showed that the prophylactic use of Yinshen Yin had good anti-irradiation effect, and the radioprotective effect was similar to the mercaminum, but significantly higher than tremella. Thereby it was considered as a good radioprotective agent. The dose reduction factor in different groups were: Yinshen Yin high dose 2.01, Yinshen Yin low dose group 1.72, mercaminum group 1.55 and tremella group 1.11

  13. Developing a virtualised testbed environment in preparation for testing of network based attacks

    CSIR Research Space (South Africa)

    Van Heerden, RP

    2013-11-01

    Full Text Available traffic volumes were pseudo randomised to represent differing temporal patterns. By building a virtualised network with simulated traffic we were able to test IDS' and other network attack detection sensors in a much more realistic environment before...

  14. Electrically conducting perovskites for SOFC and catalysis. Preparation characterization and testing

    Energy Technology Data Exchange (ETDEWEB)

    Gordes, P.

    1997-12-31

    Solid oxide fuel cells offer the possibility of high efficiency and low pollution energy source. A fuel cell converts chemical energy directly to electricity without combustion as an intermediate step. H{sub 2}, CO or hydrocarbons can be used as fuel gas. At present the main problems in developing a commercial SOFC are related to the air electrode and interconnect. Commercial air electrode and interconnect materials are still not on the market. This dissertation concerns the following main tasks: 1. A theoretical part on the co-optimization of electronic and catalytic properties of perovskites (ABO{sub 3}) where the A position is occupied by mixed rare earth or alkaline earth metal (Ca, Sr, Ba, La, etc) and the B position is occupied by a mixture of transition metals (Mn, Fe, Co, Ni, Cr, etc). 2. Optimization of the drip pyrolysis method and fabrication of high quality perovskite powders of selected compositions for further studies. This work involves a detailed characterization of powders prepared in terms of phase homogeneity, crystallite size, agglomeration, chemical composition etc. 3. Development of the necessary processing technology for fabrication of shaped samples with a closely controlled porosity and pore size distribution. This work involves development of a suitable shaping process (uniaxial pressing, extrusion, tape casting), and a detailed study of the phase evolution and densification properties of the powders as a function of temperature. 4. Characterization of the prepared perovskite components in terms of phase homogeneity, microstructure, as well as electrical and catalytic properties. 5. Recommendations for future work. (EG) 151 refs.

  15. Spent Fuel Drying System Test Results (Dry-Run in Preparation for Run 8)

    International Nuclear Information System (INIS)

    Oliver, B.M.; Klinger, G.S.; Abrefah, J.; Marschman, S.C.; MacFarlan, P.J.; Ritter, G.A.

    1999-01-01

    The water-filled K-Basins in the Hanford 100 Area have been used to store N-Reactor spent nuclear fuel (SNF) since the 1970s. Because some leaks in the basin have been detected and some of the fuel is breached due to handling damage and corrosion, efforts are underway to remove the fuel elements from wet storage. An Integrated Process Strategy (IPS) has been developed to package, dry, transport, and store these metallic uranium fuel elements in an interim storage facility on the Hanford Site (WHC 1995). Information required to support the development of the drying processes, and the required safety analyses, is being obtained from characterization tests conducted on fuel elements removed from the K-Basins. A series of whole element drying tests (reported in separate documents, see Section 7.0) have been conducted by Pacific Northwest National Laboratory (PNNL)(a)on several intact and damaged fuel elements recovered from both the K-East and K-West Basins. This report documents the results of a test ''dry-run'' conducted prior to the eighth and last of those tests, which was conducted on an N-Reactor outer fuel element removed from K-West canister6513U. The system used for the dry-run test was the Whole Element Furnace Testing System, described in Section 2.0, located in the Postirradiation Testing Laboratory (PTL, 327 Building). The test conditions and methodologies are given in Section 3.0. The experimental results are provided in Section 4.0 and discussed Section 5.0

  16. School Disciplinary Style and Adolescent Health.

    Science.gov (United States)

    Lau, Claudia; Wong, Mitchell; Dudovitz, Rebecca

    2018-02-01

    Parenting style is strongly associated with adolescent health. However, little is known about how school disciplinary style relates to health. We categorized adolescents' perceptions of their schools as authoritative, authoritarian, permissive, or neglectful, and test whether perceived school disciplinary style is associated with health. We analyze data from the RISE Up study (Reducing Health Inequities Through Social and Educational Change Follow-up), comprised of baseline (eighth grade) and 2-year follow-up surveys (10th grade) from 1,159 low-income minority adolescents in Los Angeles attending 157 schools. At 10th grade, students' ratings of school support and structure were used to categorize perceived school disciplinary style as authoritative (highest tertile for support and structure), authoritarian (low support, high structure), permissive (high support, low structure), neglectful (low on both dimensions), and average (middle tertile on either dimension). Mixed effects logistic regressions controlling for sociodemographic factors, parenting style, grades, and baseline health tested whether school disciplinary style was associated with substance use, violence, bullying, and depression symptoms. Risky behaviors varied by school disciplinary style. After adjusting for covariates, compared with an average school disciplinary style, a neglectful school was associated with higher odds of substance use (adjusted odds ratio [AOR] 2.3, p < .001) and bullying (AOR 1.5, p = .02), a permissive school was associated with higher odds of depression symptoms (AOR 2.1, p = .04), and an authoritative school was associated with lower odds of substance use (AOR .6, p = .049), violence (AOR .6, p = .03), and bullying (AOR .5, p = .001). Structured and supportive school environments may impact the health of vulnerable adolescents. Copyright © 2017 The Society for Adolescent Health and Medicine. Published by Elsevier Inc. All rights reserved.

  17. A Life Style

    Science.gov (United States)

    Allen, Thomas W.

    1971-01-01

    In this article, a clinical psychologist articulates the interpretative procedures by which family constellation data and early recollections are processed to build an account of a person's basic orientation toward life, his life style." (Author)

  18. Examining Identity Styles and Religiosity among Chilean Undergraduate Students

    Science.gov (United States)

    Grajales, Tevni E.; Leon, Vicente; Al Nasser, Fatimah; Hooley, Esther; Sample, Melina; Sommers, Brittany

    2016-01-01

    This study tested Berzsonky's theory of identity styles and identity commitment in predicting religiosity. Participants were university students (N = 320) from Chile who were surveyed with the ISI-3 and BRS-6 instruments to measure identity styles and religiosity. Path analysis was used to test the model, which suggested that the three identity…

  19. Children's Responses to Literary Style.

    Science.gov (United States)

    Henze, Mary Vance

    This study undertook to determine (1) whether teaching sixth grade children elements of style would increase their pleasure in listening to "The Hobbit," (2) whether children who learned the most about style would respond the most positively to Tolkien's style, and (3) what children's preferences would be for selected examples of Tolkien's style.…

  20. Leukopak PBMC sample processing for preparing quality control material to support proficiency testing programs.

    Science.gov (United States)

    Garcia, Ambrosia; Keinonen, Sarah; Sanchez, Ana M; Ferrari, Guido; Denny, Thomas N; Moody, M Anthony

    2014-07-01

    External proficiency testing programs designed to evaluate the performance of end-point laboratories involved in vaccine and therapeutic clinical trials form an important part of clinical trial quality assurance. Good clinical laboratory practice (GCLP) guidelines recommend both assay validation and proficiency testing for assays being used in clinical trials, and such testing is facilitated by the availability of large numbers of well-characterized test samples. These samples can be distributed to laboratories participating in these programs and allow monitoring of laboratory performance over time and among participating sites when results are obtained with samples derived from a large master set. The leukapheresis procedure provides an ideal way to collect samples from participants that can meet the required number of cells to support these activities. The collection and processing of leukapheresis samples require tight coordination between the clinical and laboratory teams to collect, process, and cryopreserve large number of samples within the established ideal time of ≤8 hours. Here, we describe our experience with a leukapheresis cryopreseration program that has been able to preserve the functionality of cellular subsets and that provides the sample numbers necessary to run an external proficiency testing program. Copyright © 2014 Elsevier B.V. All rights reserved.

  1. Supported Pd-Au Membrane Reactor for Hydrogen Production: Membrane Preparation, Characterization and Testing.

    Science.gov (United States)

    Iulianelli, Adolfo; Alavi, Marjan; Bagnato, Giuseppe; Liguori, Simona; Wilcox, Jennifer; Rahimpour, Mohammad Reza; Eslamlouyan, Reza; Anzelmo, Bryce; Basile, Angelo

    2016-05-09

    A supported Pd-Au (Au 7wt%) membrane was produced by electroless plating deposition. Permeation tests were performed with pure gas (H₂, H₂, N₂, CO₂, CH₄) for long time operation. After around 400 h under testing, the composite Pd-Au membrane achieved steady state condition, with an H₂/N₂ ideal selectivity of around 500 at 420 °C and 50 kPa as transmembrane pressure, remaining stable up to 1100 h under operation. Afterwards, the membrane was allocated in a membrane reactor module for methane steam reforming reaction tests. As a preliminary application, at 420 °C, 300 kPa of reaction pressure, space velocity of 4100 h(-1), 40% methane conversion and 35% hydrogen recovery were reached using a commercial Ni/Al₂O₃ catalyst. Unfortunately, a severe coke deposition affected irreversibly the composite membrane, determining the loss of the hydrogen permeation characteristics of the supported Pd-Au membrane.

  2. Grimsel test site: preparation and performance of migration experiments with radioisotopes of sodium, strontium and iodine

    International Nuclear Information System (INIS)

    Eikenberg, J.; Hoehn, E.; Fierz, T.; Frick, U.

    1994-09-01

    During 1991 four migration experiments with 22 Na (run 50), 24 Na (run 48), 85 Sr (run 50) and 123 I (run 47,49) were carried out in the migration fracture at the Grimsel Test Site (GTS) using a two-well injection -extraction technique (dipole configuration). All tests were accompanied by simultaneous injection of Na-fluorescein (uranine) as a conservative tracer. The dipole flow field was installed between boreholes 86.004 (injection well) and 87.006 (extraction well). The extraction flow rate was always held constant at 150 mL/min, while two different injection flow rates of 50 mL/min (runs 47,48) and 10 mL/min (runs 49, 50) were chosen to vary the flow field geometry. These exercises advance the transport model studies to evaluate important fracture specific parameters. Prior to the field tests with radiotracers of cationic Na + and Sr 2+ , the potential sorption of these elements onto equipment materials such as tubing, pumps, detectors was investigated in the field rock laboratory under identical flow conditions and test arrangements as for the fracture tests. In contrast to Na + , bivalent Sr 2+ sorbed strongly, especially onto stainless steel tubing surrounding the NaI scintillation counters used for on-line γ-detection of the radiotracers. To minimize sorption of Sr 2+ on equipment, all exposed materials were then completely replaced by PRFE (Teflon). Further tests revealed that this material proved to be chemically inert with respect to Na + and Sr 2+ . Calibration of the field data was made by check laboratory analyses of water samples. The detection limits of all tracers were below 0.05 Bp/mL. (author) 38 figs., 13 tabs., refs

  3. Perspectives on learning styles in motor and sport skills.

    Science.gov (United States)

    Fuelscher, Ian Tobias; Ball, Kevin; Macmahon, Clare

    2012-01-01

    We present the perspective that while coaches and instructors commonly adapt learning styles to maximize training outcomes, there has been little to no empirical support for the efficacy of this practice. Learning styles is a learner's preferred mode (e.g., visual, verbal) of taking in and processing new information. Although it is a relevant topic for the learning of motor and sport skills, few studies have used an appropriate methodology to test the effectiveness of learning style-based instruction. We highlight the need for a learning style assessment tool specific to motor skills and call for a test of the learning style hypothesis, the claim that learners will benefit from instruction that is tailored to their individual learning style. To this end, we suggest methodological guidelines.

  4. Perspectives on learning styles in motor and sport skills

    Directory of Open Access Journals (Sweden)

    Ian Tobias Fuelscher

    2012-03-01

    Full Text Available We present the perspective that while coaches and instructors commonly adapt learning styles to maximise training outcomes, there has been little to no empirical support for the efficacy of this practice. Learning styles is a learner’s preferred mode (e.g. visual, verbal of taking in and processing new information. Although it is a relevant topic for the learning of motor and sport skills, few studies have used an appropriate methodology to test the effectiveness of learning style-based instruction. We highlight the need for a learning style assessment tool specific to motor skills and call for a test of the learning style hypothesis, the claim that learners will benefit from instruction that is tailored to their individual learning style. To this end, we suggest methodological guidelines.

  5. Regression Test on the Rotational Speed between Two Loads as the Preparation for Braking System

    International Nuclear Information System (INIS)

    Purwanti, B S R; Yusivar, F; Garniwa M K, I

    2013-01-01

    This paper is preparing the mathematic model of braking control, continuously of determination the error (e), delta error (de) of speed reduction [9]. Load-1 and Load-2 are driven by an electric motor located on the same shaft. Both loads are driven clock wise (CW), counter clock wise (CCW) by an asynchronous three-phase motor (M3). The mass of each load is also differentiated to simulate slip phenomena. Rotational speed of M3 is equal to Load-1, detected by Sensor-1, while speed rotation of Load-2 is detected by Sensor-2. The rotation for Load-1 and Load-2 can be adjusted on several position H j (j = 1, 2, 3). Once Load-1 and Load-2 reach a constant speed, current source will be disconnected. Speed reduction from (ω±1475 rpm) to stagnant (ω=0 rpm) on Load-1 and Load-2 is considered time function. Data collected from both load (ω (t)) known as e, de; on each position of H j . It uses covariance analysis to make sure that both loads are concurrent with each other against time difference. The objective of this research is to determine slip phenomena of speed reduction of each load. The expectations are to generate smoother braking and minimize the time needed when implemented with ANFIS.

  6. Evaluation of the functionality of bread loaves prepared with quinoa flakes through biological tests

    Directory of Open Access Journals (Sweden)

    Márcia Flach Gewehr

    Full Text Available ABSTRACT The aim of this study was to evaluate quinoa flakes and bread prepared with the pseudocereal with regard to nutritional aspects by determining chemical composition, content of tocopherols and fatty acid composition as well as to possible beneficial effects in Wistar rats given commercial feed supplemented or not with quinoa flakes and cholesterol. The following parameters were determined: weight gain, food intake, liver weight, fat in liver and lipid profile in blood and liver. The results showed that processing affected the nutritional characteristics of bread because there was a significant increase in dietary fiber content but reduction in soluble fiber. Increased fiber did not influence food intake or weight gain. Regarding fat in liver of rats, the group that consumed bread without quinoa but with cholesterol showed higher lipid content. The addition of quinoa increased significantly the level of all types of tocopherols, especially in the group of animals that consumed 20% quinoa bread, improving the lipid profile both in blood and liver, largely due to a reduction in oxidized LDL.

  7. The Range Safety Debris Catalog Analysis in Preparation for the Pad Abort One Flight Test

    Science.gov (United States)

    Kutty, Prasad; Pratt, William

    2010-01-01

    With each flight test a Range Safety Data Package is assembled to understand the potential consequences of various failure scenarios. Debris catalog analysis considers an overpressure failure of the Abort Motor and the resulting debris field created 1. Characterize debris fragments generated by failure: weight, shape, and area 2. Compute fragment ballistic coefficients 3. Compute fragment ejection velocities.

  8. 49 CFR 178.802 - Preparation of fiberboard IBCs for testing.

    Science.gov (United States)

    2010-10-01

    ... limitations may cause individual measurements to vary by up to ±5 percent relative humidity without significant impairment of test reproducibility. (c) For purposes of periodic design requalification only, fiberboard IBCs or composite IBCs with fiberboard outer packagings may be at ambient conditions. [Amdt. 178...

  9. Utilization of the Baker soil test in synthetic soil preparation for reclamation of coal ash disposal sites

    International Nuclear Information System (INIS)

    Senft, J.P.; Baker, D.E.; Amistadi, M.K.

    1993-01-01

    Application of procedures developed for preparation of synthetic soils for reclamation of two coal ash disposal sites in Pennsylvania is presented. These procedures include determination of water holding properties, lime requirement, and the Baker Soil Test (BST) for chemical element analysis. Results from soil and plant analyses following establishment of vegetation on the sites have shown that the BST predicts plant incorporation of chemical elements from the synthetic soils. The results confirm the utility of the BST in planning and executing successful reclamation on disturbed lands in a manner which protects the soil-plant-animal food chain

  10. Cytological preparations for molecular analysis: A review of technical procedures, advantages and limitations for referring samples for testing.

    Science.gov (United States)

    da Cunha Santos, G; Saieg, M A; Troncone, G; Zeppa, P

    2018-04-01

    Minimally invasive procedures such as endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) must yield not only good quality and quantity of material for morphological assessment, but also an adequate sample for analysis of molecular markers to guide patients to appropriate targeted therapies. In this context, cytopathologists worldwide should be familiar with minimum requirements for refereeing cytological samples for testing. The present manuscript is a review with comprehensive description of the content of the workshop entitled Cytological preparations for molecular analysis: pre-analytical issues for EBUS TBNA, presented at the 40th European Congress of Cytopathology in Liverpool, UK. The present review emphasises the advantages and limitations of different types of cytology substrates used for molecular analysis such as archival smears, liquid-based preparations, archival cytospin preparations and FTA (Flinders Technology Associates) cards, as well as their technical requirements/features. These various types of cytological specimens can be successfully used for an extensive array of molecular studies, but the quality and quantity of extracted nucleic acids rely directly on adequate pre-analytical assessment of those samples. In this setting, cytopathologists must not only be familiar with the different types of specimens and associated technical procedures, but also correctly handle the material provided by minimally invasive procedures, ensuring that there is sufficient amount of material for a precise diagnosis and correct management of the patient through personalised care. © 2018 John Wiley & Sons Ltd.

  11. Preparation and characterization of PTFE coating in new polymer quartz piezoelectric crystal sensor for testing liquor products

    International Nuclear Information System (INIS)

    Gu Yu; Li Qiang

    2015-01-01

    A new method was developed based on the electron beam vacuum dispersion (EBVD) technology to prepare the PTFE polymer coating of the new polymer quartz piezoelectric crystal sensor for testing liquor products. The new method was applied in the new EBVD equipment which we designed. A real-time system monitoring the polymer coating’s thickness was designed for the new EBVD equipment according to the quartz crystal microbalance (QCM) principle, playing an important role in preparing stable and uniform PTFE polymer coatings of the same thickness. 30 pieces of PTFE polymer coatings on the surface of the quartz crystal basis were prepared with the PTFE polymer ultrafine powder (purity ≥ 99.99%) as the starting material. We obtained 30 pieces of new PTFE polymer sensors. By using scanning electron microscopy (SEM), the structure of the PTFE polymer coating’s column clusters was studied. One sample from the 30 pieces of new PTFE polymer sensors was analysed by SEM in four scales, i.e., 400×, 1000×, 10000×, and 25000×. It was shown that under the condition of high bias voltage and low bias current, uniformly PTFE polymer coating could be achieved, which indicates that the new EBVD equipment is suitable for mass production of stable and uniform polymer coating. (paper)

  12. Extreme Programming: Maestro Style

    Science.gov (United States)

    Norris, Jeffrey; Fox, Jason; Rabe, Kenneth; Shu, I-Hsiang; Powell, Mark

    2009-01-01

    "Extreme Programming: Maestro Style" is the name of a computer programming methodology that has evolved as a custom version of a methodology, called extreme programming that has been practiced in the software industry since the late 1990s. The name of this version reflects its origin in the work of the Maestro team at NASA's Jet Propulsion Laboratory that develops software for Mars exploration missions. Extreme programming is oriented toward agile development of software resting on values of simplicity, communication, testing, and aggressiveness. Extreme programming involves use of methods of rapidly building and disseminating institutional knowledge among members of a computer-programming team to give all the members a shared view that matches the view of the customers for whom the software system is to be developed. Extreme programming includes frequent planning by programmers in collaboration with customers, continually examining and rewriting code in striving for the simplest workable software designs, a system metaphor (basically, an abstraction of the system that provides easy-to-remember software-naming conventions and insight into the architecture of the system), programmers working in pairs, adherence to a set of coding standards, collaboration of customers and programmers, frequent verbal communication, frequent releases of software in small increments of development, repeated testing of the developmental software by both programmers and customers, and continuous interaction between the team and the customers. The environment in which the Maestro team works requires the team to quickly adapt to changing needs of its customers. In addition, the team cannot afford to accept unnecessary development risk. Extreme programming enables the Maestro team to remain agile and provide high-quality software and service to its customers. However, several factors in the Maestro environment have made it necessary to modify some of the conventional extreme

  13. Creativity, visualization abilities, and visual cognitive style.

    Science.gov (United States)

    Kozhevnikov, Maria; Kozhevnikov, Michael; Yu, Chen Jiao; Blazhenkova, Olesya

    2013-06-01

    Despite the recent evidence for a multi-component nature of both visual imagery and creativity, there have been no systematic studies on how the different dimensions of creativity and imagery might interrelate. The main goal of this study was to investigate the relationship between different dimensions of creativity (artistic and scientific) and dimensions of visualization abilities and styles (object and spatial). In addition, we compared the contributions of object and spatial visualization abilities versus corresponding styles to scientific and artistic dimensions of creativity. Twenty-four undergraduate students (12 females) were recruited for the first study, and 75 additional participants (36 females) were recruited for an additional experiment. Participants were administered a number of object and spatial visualization abilities and style assessments as well as a number of artistic and scientific creativity tests. The results show that object visualization relates to artistic creativity and spatial visualization relates to scientific creativity, while both are distinct from verbal creativity. Furthermore, our findings demonstrate that style predicts corresponding dimension of creativity even after removing shared variance between style and visualization ability. The results suggest that styles might be a more ecologically valid construct in predicting real-life creative behaviour, such as performance in different professional domains. © 2013 The British Psychological Society.

  14. Supported Pd-Au Membrane Reactor for Hydrogen Production: Membrane Preparation, Characterization and Testing

    Directory of Open Access Journals (Sweden)

    Adolfo Iulianelli

    2016-05-01

    Full Text Available A supported Pd-Au (Au 7wt% membrane was produced by electroless plating deposition. Permeation tests were performed with pure gas (H2, H2, N2, CO2, CH4 for long time operation. After around 400 h under testing, the composite Pd-Au membrane achieved steady state condition, with an H2/N2 ideal selectivity of around 500 at 420 °C and 50 kPa as transmembrane pressure, remaining stable up to 1100 h under operation. Afterwards, the membrane was allocated in a membrane reactor module for methane steam reforming reaction tests. As a preliminary application, at 420 °C, 300 kPa of reaction pressure, space velocity of 4100 h−1, 40% methane conversion and 35% hydrogen recovery were reached using a commercial Ni/Al2O3 catalyst. Unfortunately, a severe coke deposition affected irreversibly the composite membrane, determining the loss of the hydrogen permeation characteristics of the supported Pd-Au membrane.

  15. Managers’ Personality Traits Over Management Styles and Decision-Making Styles

    Directory of Open Access Journals (Sweden)

    Beliz Ülgen

    2017-06-01

    Full Text Available The paper seeks to offer a contribution to the extent literature on the role of managers’ personality characteristics over management styles and decision-making styles. We have prepared a questionnaire which consists of Girgin’s (2007 personality scale adaptation from Goldberg (1992, Kurban’s (2015 decision-making scale adopted from Scott and Bruce (1995, and Yıldızhan’s (2012 management style scale. The questionnaire is conducted among managers and employees in various sectors in Istanbul via the single random sampling method. Frequency analysis is applied to descriptive findings. In order to determine reliability and validity of the scales, reliability and factor analysis are performed. We have focused on investigating the impact of managers’ personality traits on management styles and decision-making styles by applying the Multivariate Regression Model and Correlation Analysis. The result of the factor analysis revealed that the three dimensions (extraversion, neuroticism, conscientiousness of big-five personality traits have a significant effect on some dimensions of managers’ decision making and management styles.

  16. Preparation and application of steeps of tea as new simulations of urine for the performance testing programme of 14C

    International Nuclear Information System (INIS)

    Daka, J. N.; Moodie, G.; DiNardo, A.; Kramer, G. H.

    2012-01-01

    14 C is one of the radionuclides for which the Canadian Nuclear Safety Commission has developed performance testing programmes (PTPs). During the PTP exercises, clients receive samples of natural urine containing spiked radionuclides, for testing. In these programmes, urine has disadvantages. These include (1) slow collection times from donors, (2) unpleasant smell and (3) potential to transmit diseases. To assist in solving some of these problems, the Canadian National Calibration Reference Centre for Bioassay and In Vivo Monitoring has conducted research with tea solutions, to find simpler, safer and more readily available alternatives to urine. This paper provides a new technique by which steeps of black tea have been successfully prepared for the 14 C PTP. The results of tea solutions compared well with those of urine. It was concluded that tea steeps, of which the spectroscopic and colour quenching properties have been adjusted, do provide appropriate urine simulations, suitable for use in PTPs. (authors)

  17. STANDARDIZATION OF PROCEDURES OF Plasmodium falciparum ANTIGEN PREPARATION FOR SEROLOGIC TESTS

    Directory of Open Access Journals (Sweden)

    Sandra L.M. AVILA

    1998-09-01

    Full Text Available The objective of the present study is to standardize the technical variables for preparation and storage of Plasmodium falciparum and of antigen components extracted with the amphoteric detergent Zwittergent. P. falciparum obtained from in vitro culture was stored at different temperatures and for different periods of time. For each variable, antigen components of the parasite were extracted in the presence or absence of protease inhibitors and submitted or not to later dialysis. Products were stored for 15, 30 and 60 days at different temperatures and immunological activity of each extract was determined by SDS-PAGE and ELISA using positive or negative standard sera for the presence of IgG directed to blood stage antigens of P. falciparum. Antigen extracts obtained from parasites stored at -20oC up to 10 days or at -70oC for 2 months presented the best results, showing well-defined bands on SDS-PAGE and Western blots and presenting absorbance values in ELISA that permitted safe differentiation between positive and negative sera.O objetivo deste estudo foi padronizar variáveis técnicas para o armazenamento de Plasmodium falciparum e de seus componentes antigênicos. Sedimentos de parasitas foram obtidos do cultivo in vitro de P.falciparum e estocados em diferentes temperaturas por diferentes períodos de tempo. De cada variável, foram extraídos os componentes antigênicos com detergente anfótero Zwittergent na presença e na ausência de inibidores de proteases e submetidos ou não a posterior diálise. Os produtos foram estocados por 15, 30 e 60 dias em diferentes temperaturas e caracterizados por SDS-PAGE. A atividade antigênica de cada extrato foi determinada por ELISA e Western blotting usando soros positivos e negativos para anticorpos IgG anti-formas eritrocitárias de P.falciparum. Os extratos antigênicos obtidos de parasitas estocados até 10 dias a _20ºC ou por 2 meses a _70ºC e tratados com inibidores de proteases, sob as

  18. In Vitro Preparation And Testing Of Anti-Salmonella Vaccine Against Abortion In Sheep

    Directory of Open Access Journals (Sweden)

    Flore CHIRILA

    2017-05-01

    There have been two booster inoculations of the initial administration, 7 and 14 days after. Before each dose of vaccine, blood was sampled from the marginal auricular vein in order to control the immunogenicity by anti-somatic ˮOˮ serum antibody (Ab titration using slow microplate agglutination test (Widal reaction. After three inoculations with the vaccine variant 1, Ab serum titer reached 1/128, and in types 2 and 3, 1/512 after 2 inoculations, decreasing to 1/256 after the second booster administered with no immunomodulator.

  19. Examples, clarifications, and guidance on preparing requests for relief from pump and valve inservice testing requirements

    International Nuclear Information System (INIS)

    Ransom, C.B.; Hartley, R.S.

    1996-02-01

    In this report, the Idaho National Engineering Laboratory reviewers discuss related to requests for relief from the American Society of Mechanical Engineers code requirements for inservice testing (IST) of safety-related pumps and valves at commercial nuclear power plants. This report compiles information and examples that may be useful to licensees in developing relief requests submitted to US Nuclear Regulatory Commission (NRC) for their consideration and provides insights and recommendations on related IST issues. The report also gives specific guidance on relief requests acceptable and not acceptable to the NRC and advises licensees in the use of this information for application at their facilities

  20. Evaluation of thin film ceria membranes for syngas membrane reactors—Preparation, characterization and testing

    DEFF Research Database (Denmark)

    Kaiser, Andreas; Foghmoes, Søren Preben Vagn; Chatzichristodoulou, Christodoulos

    2011-01-01

    , up to 16Nmlcm−2min−1 at 900°C, were obtained when placing the membrane between air and humidified hydrogen (H2/H2O=20). Initial experiments for syngas production were performed by testing the CGO10 membrane with methane and steam feed.The mechanical integrity of CGO10 membranes during operation (heat...... film CGO membrane should therefore lie below the expansion limit of 0.1% expected to be critical for mechanical stability and thereby allows for operation at high temperatures and low oxygen partial pressures....

  1. Conflict in schools: student nurses' conflict management styles.

    Science.gov (United States)

    Kantek, Filiz; Gezer, Nurdan

    2009-01-01

    Unless conflicts between the students and the instructors can be successfully managed, they will certainly result in negative outcomes for the students. The conflict management styles of the students should be recognized in detail in order to attain positive outcomes in regard to the conflict management styles. The purpose of this study was to examine the conflict management styles used by nursing students in conflict with faculty members and the differences in use of style from the aspect of some variables. This study was conducted with 151 students in a public university nursing school. Data were collected using a personal information form and the Rahim Organizational Conflict Inventory II (ROCI II). The data were analyzed using descriptive statistics, ANOVA, Tukey test, Kruskal Wallis test, Mann-Whitney U test and Cronbach alpha coefficient analyses. The students were found to use integrating (X=3.82) and obliging (X=3.81) styles the most, and dominating style (X=3.02) the least. In addition there were differences determined in management style between classes, frequency of experiencing conflict, and feeling of success in the conflict (pconflict resolution and that the frequency of experiencing conflict and the feeling of success in conflict had an effect on choice of style. It will be helpful to analyze the relationship between the causes of conflict between the student and the instructor in the practice field and the uses of conflict management styles.

  2. Preparation and characterisation of in-house reference material of tylosin in honey and results of a proficiency test.

    Science.gov (United States)

    Bohm, Detlef A; Stachel, Carolin S; Hackenberg, Rudolf; Gowik, Petra

    2011-08-26

    The analysis of incurred material from animals treated with pharmacologically active substances is an efficient way to check the accuracy of a method. Tylosin A was chosen for the preparation of that material because it is highly effective in controlling active infections of American Foulbrood (AFB), a global threat to apiculture, but residues in honey are not allowed according to European legislation. For this reason an in-house reference material of honey containing the macrolide tylosin A and its degradation product desmycosin (tylosin B) was prepared. After the treatment of a beehive with the appropriate macrolide tylosin A, the honey samples were collected. The incurred honey material was diluted by mixing with blank honey. Concentrations of 25.81 μg kg(-1) for tylosin A and of 19.28 μg kg(-1) for its degradation product desmycosin (tylosin B) were reached. The homogeneity was checked by analysing 12 bottles in duplicate. The stability was tested at different defined temperatures and storage conditions. The reference material described above was homogeneous and stable. Samples of this in-house reference material were used for the realisation of a proficiency test with international participation. All participants accomplished satisfying results with the exception of one laboratory. Copyright © 2011. Published by Elsevier B.V.

  3. On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method.

    Science.gov (United States)

    Inaba, Masanori; Quinson, Jonathan; Bucher, Jan Rudolf; Arenz, Matthias

    2018-03-16

    We present a step-by-step tutorial to prepare proton exchange membrane fuel cell (PEMFC) catalysts, consisting of Pt nanoparticles (NPs) supported on a high surface area carbon, and to test their performance in thin film rotating disk electrode (TF-RDE) measurements. The TF-RDE methodology is widely used for catalyst screening; nevertheless, the measured performance sometimes considerably differs among research groups. These uncertainties impede the advancement of new catalyst materials and, consequently, several authors discussed possible best practice methods and the importance of benchmarking. The visual tutorial highlights possible pitfalls in the TF-RDE testing of Pt/C catalysts. A synthesis and testing protocol to assess standard Pt/C catalysts is introduced that can be used together with polycrystalline Pt disks as benchmark catalysts. In particular, this study highlights how the properties of the catalyst film on the glassy carbon (GC) electrode influence the measured performance in TF-RDE testing. To obtain thin, homogeneous catalyst films, not only the catalyst preparation, but also the ink deposition and drying procedures are essential. It is demonstrated that an adjustment of the ink's pH might be necessary, and how simple control measurements can be used to check film quality. Once reproducible TF-RDE measurements are obtained, determining the Pt loading on the catalyst support (expressed as Pt wt%) and the electrochemical surface area is necessary to normalize the determined reaction rates to either surface area or Pt mass. For the surface area determination, so-called CO stripping, or the determination of the hydrogen underpotential deposition (Hupd) charge, are standard. For the determination of the Pt loading, a straightforward and cheap procedure using digestion in aqua regia with subsequent conversion of Pt(IV) to Pt(II) and UV-vis measurements is introduced.

  4. SYNROC powder preparation: preliminary fluid bed tests in a cold-flow unit

    International Nuclear Information System (INIS)

    Peters, P.E.; Ackerman, F.J.; Grens, J.Z.

    1982-01-01

    SYNROC is a titanate-based material which is being developed as a medium for immobilizing high-level nuclear waste. The use of a fluid bed unit for production of SYNROC powder has a precedent in the use of a fluid-bed calciner for high-level waste processing at the Idaho Chemical Processing Plant (Idaho Falls, ID). In order to facilitate the design of a fluid bed and demonstrate its use for SYNROC production, two small units have been constructed, one for low temperature use and a second for actual SYNROC production at temperatures up to 800 0 C. The low-temperature unit is constructed with glass walls to allow observation of the fluidization process, including the onset of fluidization, bed and gas bubble behavior and mixing phenomena. Disturbances caused by side streams entering the bed have been examined. Side streams may represent fuel and oxidizer admission or slurry feed with subsequent flash vaporization of the carrier liquid. This report is a summary of the initial tests made with the low-temperature, glass-walled fluid bed. The tests described include: (1) the measurement of basic fluidization parameters; (2) measurement of the effect of distribution-plate design on bed fluidization; (3) observation of jet penetration, bubble formation and coalescence, and surface behavior; and (4) studies of mixing within the bed

  5. Pegasus Rocket Wing and PHYSX Glove Being Prepared for Stress Loads Testing

    Science.gov (United States)

    1997-01-01

    A technician adjusts the Pegasus Hypersonic Experiment (PHYSX) Project's Pegasus rocket wing with attached PHYSX glove before a loads-test at Scaled Composites, Inc., in Mojave, California, in January 1997. For the test, technicians slowly filled water bags beneath the wing to create the pressure, or 'wing-loading,' required to determine whether the wing could withstand its design limit for stress. The wing sits in a wooden triangular frame which serves as the test-rig, mounted to the floor atop the waterbags. PHYSX was launched aboard a Pegasus rocket on October 22, 1998. Pegasus is an air-launched space booster produced by Orbital Sciences Corporation and Hercules Aerospace Company (initially; later, Alliant Tech Systems) to provide small satellite users with a cost-effective, flexible, and reliable method for placing payloads into low earth orbit. Pegasus has been used to launch a number of satellites and the PHYSX experiment. That experiment consisted of a smooth glove installed on the first-stage delta wing of the Pegasus. The glove was used to gather data at speeds of up to Mach 8 and at altitudes approaching 200,000 feet. The flight took place on October 22, 1998. The PHYSX experiment focused on determining where boundary-layer transition occurs on the glove and on identifying the flow mechanism causing transition over the glove. Data from this flight-research effort included temperature, heat transfer, pressure measurements, airflow, and trajectory reconstruction. Hypersonic flight-research programs are an approach to validate design methods for hypersonic vehicles (those that fly more than five times the speed of sound, or Mach 5). Dryden Flight Research Center, Edwards, California, provided overall management of the glove experiment, glove design, and buildup. Dryden also was responsible for conducting the flight tests. Langley Research Center, Hampton, Virginia, was responsible for the design of the aerodynamic glove as well as development of sensor and

  6. Relationship between attachment styles and happiness in medical students

    Directory of Open Access Journals (Sweden)

    Marzyeh Moghadam

    2016-01-01

    Full Text Available Background: Attachment theory is one of the most important achievements of contemporary psychology. Role of medical students in the community health is important, so we need to know about the situation of happiness and attachment style in these students. Objectives: This study was aimed to assess the relationship between medical students′ attachment styles and demographic characteristics. Materials and Methods: This cross-sectional study was conducted on randomly selected students of Medical Sciences in Kurdistan University, in 2012. To collect data, Hazan and Shaver′s attachment style measure and the Oxford Happiness Questionnaire were used. The results were analyzed using the  SPSS software version 16 (IBM, Chicago IL, USA and statistical analysis was performed via t-test, Chi-square test, and multiple regression tests. Results: Secure attachment style was the most common attachment style and the least common was ambivalent attachment style. Avoidant attachment style was more common among single persons than married people (P = 0.03. No significant relationship was observed between attachment style and gender and grade point average of the studied people. The mean happiness score of students was 62.71. In multivariate analysis, the variables of secure attachment style (P = 0.001, male gender (P = 0.005, and scholar achievement (P = 0.047 were associated with higher happiness score. Conclusion: The most common attachment style was secure attachment style, which can be a positive prognostic factor in medical students, helping them to manage stress. Higher frequency of avoidant attachment style among single persons, compared with married people, is mainly due to their negative attitude toward others and failure to establish and maintain relationships with others.

  7. Relationship between attachment styles and happiness in medical students.

    Science.gov (United States)

    Moghadam, Marzyeh; Rezaei, Farzin; Ghaderi, Ebrahim; Rostamian, Negar

    2016-01-01

    Attachment theory is one of the most important achievements of contemporary psychology. Role of medical students in the community health is important, so we need to know about the situation of happiness and attachment style in these students. This study was aimed to assess the relationship between medical students' attachment styles and demographic characteristics. This cross-sectional study was conducted on randomly selected students of Medical Sciences in Kurdistan University, in 2012. To collect data, Hazan and Shaver's attachment style measure and the Oxford Happiness Questionnaire were used. The results were analyzed using the SPSS software version 16 (IBM, Chicago IL, USA) and statistical analysis was performed via t-test, Chi-square test, and multiple regression tests. Secure attachment style was the most common attachment style and the least common was ambivalent attachment style. Avoidant attachment style was more common among single persons than married people ( P = 0.03). No significant relationship was observed between attachment style and gender and grade point average of the studied people. The mean happiness score of students was 62.71. In multivariate analysis, the variables of secure attachment style ( P = 0.001), male gender ( P = 0.005), and scholar achievement ( P = 0.047) were associated with higher happiness score. The most common attachment style was secure attachment style, which can be a positive prognostic factor in medical students, helping them to manage stress. Higher frequency of avoidant attachment style among single persons, compared with married people, is mainly due to their negative attitude toward others and failure to establish and maintain relationships with others.

  8. Leadership = Communication? The Relations of Leaders' Communication Styles with Leadership Styles, Knowledge Sharing and Leadership Outcomes.

    Science.gov (United States)

    de Vries, Reinout E; Bakker-Pieper, Angelique; Oostenveld, Wyneke

    2010-09-01

    PURPOSE: The purpose of this study was to investigate the relations between leaders' communication styles and charismatic leadership, human-oriented leadership (leader's consideration), task-oriented leadership (leader's initiating structure), and leadership outcomes. METHODOLOGY: A survey was conducted among 279 employees of a governmental organization. The following six main communication styles were operationalized: verbal aggressiveness, expressiveness, preciseness, assuredness, supportiveness, and argumentativeness. Regression analyses were employed to test three main hypotheses. FINDINGS: In line with expectations, the study showed that charismatic and human-oriented leadership are mainly communicative, while task-oriented leadership is significantly less communicative. The communication styles were strongly and differentially related to knowledge sharing behaviors, perceived leader performance, satisfaction with the leader, and subordinate's team commitment. Multiple regression analyses showed that the leadership styles mediated the relations between the communication styles and leadership outcomes. However, leader's preciseness explained variance in perceived leader performance and satisfaction with the leader above and beyond the leadership style variables. IMPLICATIONS: This study offers potentially invaluable input for leadership training programs by showing the importance of leader's supportiveness, assuredness, and preciseness when communicating with subordinates. ORIGINALITY/VALUE: Although one of the core elements of leadership is interpersonal communication, this study is one of the first to use a comprehensive communication styles instrument in the study of leadership.

  9. An examination of acquiescent response styles in cross-cultural research

    NARCIS (Netherlands)

    Fischer, R.; Fontaine, J.R.J.; van de Vijver, F.J.R.; van Hemert, D.A.; Gari, A.; Mylonas, K.

    2009-01-01

    Response styles constitute a formidable challenge for cross-cultural research. In this article, three different response styles are discussed (acquiescence, extremity scoring, and social desirability). Acquiescence responding (ARS) is then integrated into a larger classical test theoretical

  10. Management styles and motivation.

    Science.gov (United States)

    Shearer, Dana Ann

    2012-01-01

    According to a review of the current literature, common managerial styles are transformational, transactional, and laissez-faire. When managers expand their leadership skills to improve the staff's morale, they must use a combination of transformational leadership behaviors and transactional contingent rewards to maximize their effectiveness on employees. A motivation theory such as Herzberg and Maslow enhances employees' motivation, morale, and satisfaction. Being able to motivate, empower, and influence staff improves satisfaction and retention levels among the team. A manager's leadership style influences motivation, morale, and retention in staff. Leaders are influenced by their educational development and the organizational culture. Organizational culture has an impact on a manager's style, which is forwarded to their followers.

  11. Parental feeding practices predict authoritative, authoritarian, and permissive parenting styles.

    Science.gov (United States)

    Hubbs-Tait, Laura; Kennedy, Tay Seacord; Page, Melanie C; Topham, Glade L; Harrist, Amanda W

    2008-07-01

    Our goal was to identify how parental feeding practices from the nutrition literature link to general parenting styles from the child development literature to understand how to target parenting practices to increase effectiveness of interventions. Stand-alone parental feeding practices could be targeted independently. However, parental feeding practices linked to parenting styles require interventions treating underlying family dynamics as a whole. To predict parenting styles from feeding practices and to test three hypotheses: restriction and pressure to eat are positively related whereas responsibility, monitoring, modeling, and encouraging are negatively related to an authoritarian parenting style; responsibility, monitoring, modeling, and encouraging are positively related whereas restriction and pressure to eat are negatively related to an authoritative parenting style; a permissive parenting style is negatively linked with all six feeding practices. Baseline data of a randomized-controlled intervention study. Two hundred thirty-nine parents (93.5% mothers) of first-grade children (134 boys, 105 girls) enrolled in rural public schools. Parental responses to encouraging and modeling questionnaires and the Child Feeding Questionnaire, as well as parenting styles measured by the Parenting Styles and Dimensions Questionnaire. Correlation and regression analyses. Feeding practices explained 21%, 15%, and 8% of the variance in authoritative, authoritarian, and permissive parenting, respectively. Restriction, pressure to eat, and monitoring (negative) significantly predicted an authoritarian style (Hypothesis 1); responsibility, restriction (negative), monitoring, and modeling predicted an authoritative style (Hypothesis 2); and modeling (negative) and restriction significantly predicted a permissive style (Hypothesis 3). Parental feeding practices with young children predict general parenting styles. Interventions that fail to address underlying parenting styles

  12. Nutrition communication styles of family doctors: results of quantitative research.

    Science.gov (United States)

    van Dillen, S M E; Hiddink, G J; Koelen, M A; van Woerkum, C M J

    2005-08-01

    To assess the nutrition communication styles of Dutch family doctors and in particular to assess its psychosocial and sociodemographic correlates. A cross-sectional study in which a representative sample of 600 Dutch family doctors completed a questionnaire. The survey was conducted in October and November 2004 in the Netherlands. A total of 267 family doctors completed the questionnaire (response rate 45%). Principal component factor analyses with varimax rotation were performed to construct factors. Cronbach's alpha was used as an index of reliability. Our hypothetical model for nutrition communication style was tested using multiple regression analysis, combining the forward and backward procedures under the condition of the same results. Many family doctors felt at ease with a motivational nutrition communication style. The main predictor for motivational nutrition communication style was task perception of prevention (26%). Some individual and environmental correlates had an additional influence (explained variance 49%). Other styles showed explained variances up to 57%. The motivational style was the best predictor for actual nutrition communication behaviour (35%), while the confrontational style was the best predictor for actual nutrition communication behaviour towards overweight (34%). In contemporary busy practice, family doctors seem to rely on their predominant nutrition communication style to deal with standard situations efficiently: for the majority, this proved to be the motivational nutrition communication style. Moreover, family doctors used a combination of styles. This study suggests that family doctors behave like chameleons, by adapting their style to the specific circumstances, like context, time and patient. If family doctors communicate about nutrition in general, they select any of the five nutrition communication styles. If they communicate about overweight, they pick either the confrontational or motivational style.

  13. Effects of Synthetic Serum Supplementation in Sperm Preparation Media on Sperm Capacitation and Function Test Results

    Directory of Open Access Journals (Sweden)

    Ying-Fu Shih

    2016-01-01

    Full Text Available Albumin supplementation of culture media induces sperm capacitation in assisted reproduction technique cycles. Synthetic serum supplementation is clinically used to replace albumin for preventing transmission of infectious agents. However, the effects of synthetic serum supplementation on sperm capacitation have rarely been investigated. Spermatozoa from 30 men with normal basic semen analysis results were collected, divided into five aliquots, and cultured in capacitating conditions in four combinations of two synthetic serum supplements, serum substitute supplement (SSS and serum protein substitute (SPS, and two fertilization media, Quinns Advantage™ Fertilization (QF and human tubular fluid (HTF media. Reactive oxygen species (ROS levels in spermatozoa were measured through chemiluminescence. Furthermore, acrosome reaction and western blotting for tyrosine phosphorylation were used to evaluate sperm capacitation. HTF+SSS had significantly higher ROS levels than QF+SPS did (11,725 ± 1,172 versus 6,278 ± 864 relative light units. In addition, the spermatozoa cultured in QF+SPS had lower motility, acrosome reaction rates, and tyrosine phosphorylation levels compared with those cultured in HTF+SSS. In conclusion, the effects of synthetic serum supplementation on sperm capacitation varied according to the combination of media. These differences may lead to variations in spermatozoon ROS levels, thus affecting sperm function test results.

  14. Preparation, characterization and single cell testing of new ionic conducting polymers for fuel cell applications

    Science.gov (United States)

    Escribano, P. G.; del Río y, C.; Acosta, J. L.

    In this work, heterogeneous sulfonation and both, structural and electrical characterization of a mixture composed on block copolymer ionomers (HSBS and EPDM) and commercial silica, are studied. The incorporation of sulfonic groups was checked by infrared spectroscopy (FTIR-ATR). Microstructure was studied by means of dynamic mechanical analysis (DMA). Also, water uptake and methanol crossover were determined, and the results were compared with those of Nafion ® 117. Electrical behavior was recorded by means of electrochemical impedance spectroscopy (EIS) at different hydration times. Results show that sulfonation of the styrene rings has effectively occurred. Conductivity values are similar to Nafion and they improve with hydration time. Methanol crossover is lower than in Nafion. Finally, a single complete proton exchange membrane fuel cell (PEMFC) as a whole was tested obtaining the polarization and power curves at different temperatures and pressures, and modeling it by an electrical equivalent circuit (EC) in the symmetrical mode (SM) configuration using the EIS technique. This study offers a physical interpretation relating physical parameters to several processes occurring in the system. Power density values are higher than in Nafion.

  15. Eucalyptus Biodiesel as an Alternative to Diesel Fuel: Preparation and Tests on DI Diesel Engine

    Directory of Open Access Journals (Sweden)

    Lyes Tarabet

    2012-01-01

    Full Text Available Nowadays, the increasing oil consumption throughout the world induces crucial economical, security, and environmental problems. As a result, intensive researches are undertaken to find appropriate substitution to fossil fuels. In view of the large amount of eucalyptus trees present in arid areas, we focus in this study on the investigation of using eucalyptus biodiesel as fuel in diesel engine. Eucalyptus oil is converted by transesterification into biodiesel. Eucalyptus biodiesel characterization shows that the physicochemical properties are comparable to those of diesel fuel. In the second phase, a single cylinder air-cooled, DI diesel engine was used to test neat eucalyptus biodiesel and its blends with diesel fuel in various ratios (75, 50, and 25 by v% at several engine loads. The engine combustion parameters such as peak pressure, rate of pressure rise, and heat release rate are determined. Performances and exhaust emissions are also evaluated at all operating conditions. Results show that neat eucalyptus biodiesel and its blends present significant improvements of carbon monoxide, unburned hydrocarbon, and particulates emissions especially at high loads with equivalent performances to those of diesel fuel. However, the NOx emissions are slightly increased when the biodiesel content is increased in the blend.

  16. Eucalyptus biodiesel as an alternative to diesel fuel: preparation and tests on DI diesel engine.

    Science.gov (United States)

    Tarabet, Lyes; Loubar, Khaled; Lounici, Mohand Said; Hanchi, Samir; Tazerout, Mohand

    2012-01-01

    Nowadays, the increasing oil consumption throughout the world induces crucial economical, security, and environmental problems. As a result, intensive researches are undertaken to find appropriate substitution to fossil fuels. In view of the large amount of eucalyptus trees present in arid areas, we focus in this study on the investigation of using eucalyptus biodiesel as fuel in diesel engine. Eucalyptus oil is converted by transesterification into biodiesel. Eucalyptus biodiesel characterization shows that the physicochemical properties are comparable to those of diesel fuel. In the second phase, a single cylinder air-cooled, DI diesel engine was used to test neat eucalyptus biodiesel and its blends with diesel fuel in various ratios (75, 50, and 25 by v%) at several engine loads. The engine combustion parameters such as peak pressure, rate of pressure rise, and heat release rate are determined. Performances and exhaust emissions are also evaluated at all operating conditions. Results show that neat eucalyptus biodiesel and its blends present significant improvements of carbon monoxide, unburned hydrocarbon, and particulates emissions especially at high loads with equivalent performances to those of diesel fuel. However, the NOx emissions are slightly increased when the biodiesel content is increased in the blend.

  17. Does learning style preferences influence academic performance among dental students in Isfahan, Iran?

    Science.gov (United States)

    Akhlaghi, Najmeh; Mirkazemi, Hosein; Jafarzade, Mehdi; Akhlaghi, Narjes

    2018-03-24

    The present study aimed to identify learning preferences of dental students and it's relationships with the academic performance at Dental school, Isfahan, Iran. This cross-sectional descriptive study included 200 undergraduate dental students from October to November 2016. Data were collected using a questionnaire composed of two parts. The first part included demographic data and the second part was P version of visual, auditory, reading,writing, and kinesthetic (VARK) questionnaire. Data analysis were conducted with Chi-square Test, one-way ANOVA and multiple linear regressions. The response rate was 86.6%. About half of the students (51.5 %) had multimodal learning preferences. Among the unimodal group (48.5%), the most common mode distribution was auditory (24.0%), followed by kinesthetic (15.5%), read-write (8.0%) and visual (1.0%). There was a significant association between academic performance and reading-writing learning style preference (Pp < 0.01). The preferred learning style was multimodal. Aural followed by the kinesthetic styles had the highest percentage among single-mode learning styles. Students with reading-writing preference had better academic performance. The results of this study can provide useful information to prepare a more problem-based curriculum with active learning strategies.

  18. PREPARATION, CHARACTERIZATION AND CATALYTIC ACTIVITY TEST OF CoMo/ZnO CATALYST ON ETHANOL CONVERSION USING STEAM REFORMING METHOD

    Directory of Open Access Journals (Sweden)

    Wega Trisunaryanti

    2010-06-01

    Full Text Available Preparation, characterization and catalytic activity test of CoMo/ZnO catalyst for steam reforming of ethanol have been investigated. The catalysts preparation was carried out by impregnation of Co and/or Mo onto ZnO sample. Water excess was used in ethanol feed for steam reforming process under mol ratio of ethanol:water (1:10. Characterizations of catalysts were conducted by analysis of metal content using Atomic Absorption Spectroscopy (AAS. Determination of catalysts acidity was conducted by gravimetric method of adsorption of pyridine base. Catalytic activity test on ethanol conversion using steam reforming method was conducted in a semi-flow reactor system, at a temperature of 400 oC, for 1.5 h under N2 flow rate of 10 mL/min. Gas product was analyzed by gas chromatograph with TCD system. The results of catalysts characterizations showed that the impregnation of Co and/or Mo metals on ZnO sample increased its acidity and specific surface area. The content of Co in Co/ZnO and CoMo/ZnO catalysts was 1.14 and 0.49 wt%. The Mo content in CoMo/ZnO catalyst was 0.36 wt%. The catalytic activity test result on ethanol conversion showed that the ZnO, Co/ZnO, and CoMo/ZnO catalysts produced gas fraction of 16.73, 28.53, and 35.53 wt%, respectively. The coke production of ZnO, Co/ZnO, and CoMo/ZnO catalysts was 0.86, 0.24, and 0.08 wt%, respectively. The gas products consisted mainly of hydrogen.   Keywords: CoMo/ZnO catalyst, steam reforming, ethanol

  19. Identifying learning styles.

    Science.gov (United States)

    Hughes, Grace

    2016-12-14

    What was the nature of the CPD activity, practice-related feedback and/or event and/or experience in your practice? The article explored different learning styles and outlined some of the models that can be used to identify them. It discussed the limitations of these models, indicating that although they can be helpful in identifying a student's preferred learning style, this is not 'fixed' and might change over time. Learning is also influenced by other factors, such as culture and age.

  20. CROSS CULTURAL CONFLICT RESOLUTION STYLES: DATA REVISITED

    Directory of Open Access Journals (Sweden)

    Nuray ALAGÖZLÜ

    2017-07-01

    Full Text Available The way conflicts are solved is thought to be culturally learned (Hammer, 2005; therefore, this is reflected through language use. Conflicts, as inevitable parts of communication, naturally mirror cultural differences. Intercultural conflict styles have been studied so far by various researchers. How conflicts are initiated, maintained and escalated or terminated are all culture bound (Leung, 2002 and all the related stages vary from one culture to another. In the related literature, there have been attempts to describe different conflict handling classifications. Using Hammer’s (2005 categorization that was found to be more refined and summative, conflict resolution styles of Turkish and American College students were explored using Discourse Completion Tests (DCT with eight conflict situations where the respondents were required to write verbal solutions to overcome the conflicts described in the test. Those utterances were categorized according to Directness/Indirectness Scale modified from Hammer’s (2005 “International Conflict Style Inventory (ICSI” that classifies intercultural conflict resolution styles as high/low level of directness and high/low level of emotional expressiveness. It is believed that the study provides insight into intercultural communication as there are culturally generalizable (etic and learned patterns of conflict resolution styles pertinent to different cultures (Hammer, 2009, p. 223; Ting-Toomey, 1994.

  1. Qualitative risk assessment during polymer mortar test specimens preparation - methods comparison

    International Nuclear Information System (INIS)

    Silva, F; Sousa, S P B; Ribeiro, M C S; Arezes, P; Swuste, P; Baptista, J S

    2015-01-01

    Polymer binder modification with inorganic nanomaterials (NM) could be a potential and efficient solution to control matrix flammability of polymer concrete (PC) materials without sacrificing other important properties. Occupational exposures can occur all along the life cycle of a NM and “nanoproducts” from research through scale-up, product development, manufacturing, and end of life. The main objective of the present study is to analyse and compare different qualitative risk assessment methods during the production of polymer mortars (PM) with NM. The laboratory scale production process was divided in 3 main phases (pre-production, production and post-production), which allow testing the assessment methods in different situations. The risk assessment involved in the manufacturing process of PM was made by using the qualitative analyses based on: French Agency for Food, Environmental and Occupational Health and Safety method (ANSES); Control Banding Nanotool (CB Nanotool); Ecole Polytechnique Fédérale de Lausanne method (EPFL); Guidance working safely with nanomaterials and nanoproducts (GWSNN); Istituto Superiore per la Prevenzione e la Sicurezza del Lavoro, Italy method (ISPESL); Precautionary Matrix for Synthetic Nanomaterials (PMSN); and Stoffenmanager Nano. It was verified that the different methods applied also produce different final results. In phases 1 and 3 the risk assessment tends to be classified as medium-high risk, while for phase 2 the more common result is medium level. It is necessary to improve the use of qualitative methods by defining narrow criteria for the methods selection for each assessed situation, bearing in mind that the uncertainties are also a relevant factor when dealing with the risk related to nanotechnologies field. (paper)

  2. Qualitative risk assessment during polymer mortar test specimens preparation - methods comparison

    Science.gov (United States)

    Silva, F.; Sousa, S. P. B.; Arezes, P.; Swuste, P.; Ribeiro, M. C. S.; Baptista, J. S.

    2015-05-01

    Polymer binder modification with inorganic nanomaterials (NM) could be a potential and efficient solution to control matrix flammability of polymer concrete (PC) materials without sacrificing other important properties. Occupational exposures can occur all along the life cycle of a NM and “nanoproducts” from research through scale-up, product development, manufacturing, and end of life. The main objective of the present study is to analyse and compare different qualitative risk assessment methods during the production of polymer mortars (PM) with NM. The laboratory scale production process was divided in 3 main phases (pre-production, production and post-production), which allow testing the assessment methods in different situations. The risk assessment involved in the manufacturing process of PM was made by using the qualitative analyses based on: French Agency for Food, Environmental and Occupational Health & Safety method (ANSES); Control Banding Nanotool (CB Nanotool); Ecole Polytechnique Fédérale de Lausanne method (EPFL); Guidance working safely with nanomaterials and nanoproducts (GWSNN); Istituto Superiore per la Prevenzione e la Sicurezza del Lavoro, Italy method (ISPESL); Precautionary Matrix for Synthetic Nanomaterials (PMSN); and Stoffenmanager Nano. It was verified that the different methods applied also produce different final results. In phases 1 and 3 the risk assessment tends to be classified as medium-high risk, while for phase 2 the more common result is medium level. It is necessary to improve the use of qualitative methods by defining narrow criteria for the methods selection for each assessed situation, bearing in mind that the uncertainties are also a relevant factor when dealing with the risk related to nanotechnologies field.

  3. Preparation and characterization of CS/ PEO/ cefazolin nanofibers with in vitro and in vivo testing

    Directory of Open Access Journals (Sweden)

    Minoo Sadri

    2017-04-01

    Full Text Available Objective(S: Electrospinning of chitosan/polyethylene oxide (CS/PEO nanofibers with the addition of cefazolin to create nanofibers with antimicrobial properties were examined. Methods: Polymeric nanofibers including CS/PEO and CS/PEO /cefazolin, were produced by electrospinning method. The range of nanofiber was 60-100 nm in diameter and measured with ImageJ software. The morphology of electrospun nanofibers was studied with use of scanning electron microscopy (SEM. Moreover, the chemical structures of the nanofibers were evaluated by FT-IR. The drug release of nanofibers was also investigated by UV-Vis spectrophotometry. The antibacterial activity of scaffolds was tested by two type bacteria including Escherichia coli and Staphylococcus aureus. The healing ability of nanofibers was studied on the rat’s wound. Results: The SEM images indicated that the addition of cefazolin as much as 1wt% brings about the best nanofiber. Also, the morphology of electrospun nanofiber is dependent on the viscosity of the solution and the ratio of CS /PEO/cefazolin. According to the results of cefazolin releasing from nanofibers, the best results were obtained in the presence of CS /PEO/1wt%cefazolin nanofibers as healing sample. In animal studies, the effect of nanofibers was studied in the burn wound healing of rats and improvement of the wound was observed by nanofibers containing 1%wt cefazolin. Conclusions: According to these results, it seems that CS /PEO/1wt% cefazolin nanofiber is a good choice as a wound covering agent and hold more moisture in its structure thus the surface of wound remain wet during the healing process that prevent from nanofiber sticking to the wound surface.

  4. Cognitive styles and mental rotation ability in map learning.

    Science.gov (United States)

    Pazzaglia, Francesca; Moè, Angelica

    2013-11-01

    In inspecting, learning and reproducing a map, a wide range of abilities is potentially involved. This study examined the role of mental rotation (MR) and verbal ability, together with that of cognitive styles in map learning. As regards cognitive styles, the traditional distinction between verbalizers and visualizers has been taken into account, together with a more recent distinction between two styles of visualization: spatial and object. One hundred and seven participants filled in two questionnaires on cognitive styles: the Verbalizer-Visualizer Questionnaire (Richardson in J Ment Imag 1:109-125, 1977) and the Object-Spatial Imagery Questionnaire (Blajenkova et al. in Appl Cogn Psych 20:239-263, 2006), performed MR and verbal tests, learned two maps, and were then tested for their recall. It was found that MR ability and cognitive styles played a role in predicting map learning, with some distinctions within cognitive styles: verbal style favoured learning of one of the two maps (the one rich in verbal labels), which in turn was disadvantaged by the adoption of spatial style. Conversely, spatial style predicted learning of the other map, rich in visual features. The discussion focuses on implications for cognitive psychology and everyday cognition.

  5. Mastery-style exercises in physics

    Science.gov (United States)

    Schroeder, Noah D.

    Mastery learning employs repeated cycles of instructional support and formative assessment to help students achieve desired skills. Instructional objectives are broken into small pieces, and students master those pieces in successive order by performing to a set standard on an assessment for each objective. If a student cannot master an objective, instructional support is provided, and the student is reassessed. Mastery learning has been proved effective in many subject areas, but comparatively little research has been done on applying it in physics instruction. This dissertation details the path taken that culminated in the use of mastery-inspired exercises to teach students basic skills in introductory physics courses. The path that led to our choice of mastery began with an attempt to provide students with extra practice and formative assessment through weekly practice tests with corresponding solutions, with the goal of helping them better prepare for summative exams in an introductory physics course. No effect was seen, and participation was very low. Investigating how students learn from solutions revealed that they are poor evaluators of their understanding of provided solutions and struggle to retain the skills taught in those solutions. In a follow-up clinical experiment that provided students with solutions, required them to recall the solutions from memory, and re-presented the solutions for restudy, students showed strong retention as well as the ability to transfer information from the solutions to new situations. These results inspired the formal use of mastery learning as an instructional paradigm due to its requirement that students repeatedly recall information from solutions and apply it to new situations. Mastery-style exercises were first created and tested in clinical trials, followed by two in-course implementations. In the clinical trials, students completed a set of questions on a particular skill, and if they failed to master that skill

  6. Parenting Styles and Adjustment Outcomes among College Students

    Science.gov (United States)

    Love, Keisha M.; Thomas, Deneia M.

    2014-01-01

    Research has demonstrated that parenting styles partially explain college students' academic adjustment. However, to account for academic adjustment more fully, additional contributors should be identified and tested. We examined the fit of a hypothesized model consisting of parenting styles, indicators of well-being, and academic adjustment…

  7. Perceived Parenting Styles as Predictor of Internet Addiction in Adolescence

    Science.gov (United States)

    Dogan, Huseyin; Bozgeyikli, Hasan; Bozdas, Canan

    2015-01-01

    This study examined the perceived parenting styles as predictors of Internet addiction in adolescence. The participants of the study were a total of 419 high school students including 238 girl and 181 boy students whose mean age was 16.5. Personal information form, "Internet Addiction Test" and "Perceived Parenting Style Scale"…

  8. The Relationship between Learning Style and Academic Achievement.

    Science.gov (United States)

    Farrell-Moskwa, Claire

    A study investigated the correlation between students' learning styles and their academic achievement on report cards and standardized tests. Subjects were 58 fifth-grade students in a suburban middle school. The "Learning Style Inventory" by Brown and Cooper was administered to this population, and students' academic averages and…

  9. Genetic selection for coping style predicts stressor susceptibility

    NARCIS (Netherlands)

    Veenema, AH; Meijer, OC; de Kloet, ER; Koolhaas, JM

    Genetically selected aggressive (SAL) and nonaggressive (LAL) male wild house-mice which show distinctly different coping styles, also display a differential regulation of the hypothalamic-pituitary-adrenal axis after exposure to an acute stressor. To test the hypothesis that coping style predicts

  10. Humor Styles and Leadership Styles: Community College Presidents

    Science.gov (United States)

    Carrica, Jennifer L.

    2009-01-01

    The purpose of this study was to explore the relationship between leadership styles (transformational, transactional, laissez-faire) and humor styles (affiliative, self-enhancing, aggressive, self-defeating) of community college presidents. Research has shown that humor and leadership styles are related and that humor may enhance interpersonal…

  11. The APA Style Converter: a Web-based interface for converting articles to APA style for publication.

    Science.gov (United States)

    Li, Ping; Cunningham, Krystal

    2005-05-01

    The APA Style Converter is a Web-based tool with which authors may prepare their articles in APA style according to the APA Publication Manual (5th ed.). The Converter provides a user-friendly interface that allows authors to copy and paste text and upload figures through the Web, and it automatically converts all texts, references, and figures to a structured article in APA style. The output is saved in PDF or RTF format, ready for either electronic submission or hardcopy printing.

  12. The failure analysis, redesign, and final preparation of the Brilliant Eyes Thermal Storage Unit for flight testing

    Science.gov (United States)

    Lamkin, T.; Whitney, Brian

    1995-01-01

    This paper describes the engineering thought process behind the failure analysis, redesign, and rework of the flight hardware for the Brilliant Eyes Thermal Storage Unit (BETSU) experiment. This experiment was designed to study the zero-g performance of 2-methylpentane as a suitable phase change material. This hydrocarbon served as the cryogenic storage medium for the BETSU experiment which was flown 04 Mar 94 on board Shuttle STS-62. Ground testing had indicated satisfactory performance of the BETSU at the 120 Kelvin design temperature. However, questions remained as to the micro-gravity performance of this unit; potential deviations in ground (1 g) versus space flight (0 g) performance, and how the unit would operate in a realistic space environment undergoing cyclical operation. The preparations and rework performed on the BETSU unit, which failed initial flight qualification, give insight and lessons learned to successfully develop and qualify a space flight experiment.

  13. Standardization of anti-lethal toxin potency test of antivenoms prepared from two different Agkistrodon halys venoms

    Directory of Open Access Journals (Sweden)

    K. H. Lee

    2006-01-01

    Full Text Available In Korea, antivenoms for the treatment of patients bitten by venomous snakes have been imported from Japan or China. Although there is cross-reactivity between these antibodies and venoms from snakes indigenous to Korea (e.g. Agkistrodon genus, protection is not optimal. Antivenoms specifically prepared to neutralize Korean snake venoms could be more effective, with fewer side effects. To this end, we established an infrastructure to develop national standards and created a standardized method to evaluate the efficacy of two horse-derived antivenoms using mouse lethal toxin test. Additionally, we determined the antivenoms neutralizing activity against lethal doses (LD50 of Agkistrodon halys (from Japan and Jiangzhe Agkistrodon halys (from China venoms. We also performed cross-neutralization tests using probit analysis on each pairing of venom and antivenom in order to check the possibility of using Jiangzhe A. halys venom as a substitute for A. halys venom, the current standard. Slope of A. halys venom with A. halys antivenom was 10.2 and that of A. halys venom with Jiangzhe A. halys antivenom was 9.6. However, Slope of Jiangzhe A. halys venom with A. halys antivenom was 4.7 while that of Jiangzhe A. halys venom with Jiangzhe A. halys antivenom was 11.5. Therefore, the significant difference in slope patterns suggests that Jiangzhe A. halys venom cannot be used as a substitute for the standard venom to test the anti-lethal toxin activity of antivenoms (p<0.05.

  14. Accelerated Thermal Cycling Test of Microencapsulated Paraffin Wax/Polyaniline Made by Simple Preparation Method for Solar Thermal Energy Storage.

    Science.gov (United States)

    Silakhori, Mahyar; Naghavi, Mohammad Sajad; Metselaar, Hendrik Simon Cornelis; Mahlia, Teuku Meurah Indra; Fauzi, Hadi; Mehrali, Mohammad

    2013-04-29

    Microencapsulated paraffin wax/polyaniline was prepared using a simple in situ polymerization technique, and its performance characteristics were investigated. Weight losses of samples were determined by Thermal Gravimetry Analysis (TGA). The microencapsulated samples with 23% and 49% paraffin showed less decomposition after 330 °C than with higher percentage of paraffin. These samples were then subjected to a thermal cycling test. Thermal properties of microencapsulated paraffin wax were evaluated by Differential Scanning Calorimeter (DSC). Structure stability and compatibility of core and coating materials were also tested by Fourier transform infrared spectrophotometer (FTIR), and the surface morphology of the samples are shown by Field Emission Scanning Electron Microscopy (FESEM). It has been found that the microencapsulated paraffin waxes show little change in the latent heat of fusion and melting temperature after one thousand thermal recycles. Besides, the chemical characteristics and structural profile remained constant after one thousand thermal cycling tests. Therefore, microencapsulated paraffin wax/polyaniline is a stable material that can be used for thermal energy storage systems.

  15. Style and creativity in design

    CERN Document Server

    Chan, Chiu-Shui

    2015-01-01

    This book looks at causative reasons behind creative acts and stylistic expressions. It explores how creativity is initiated by design cognition and explains relationships between style and creativity. The book establishes a new cognitive theory of style and creativity in design and provides designers with insights into their own cognitive processes and styles of thinking, supporting a better understanding of the qualities present in their own design.  An explanation of the nature of design cognition begins this work, with a look at how design knowledge is formulated, developed, structured and utilized, and how this utilization triggers style and creativity. The author goes on to review historical studies of style, considering a series of psychological experiments relating to the operational definition, degree, measurement, and creation of style. The work conceptually summarizes the recognition of individual style in products, as well as the creation of such styles as a process before reviewing studies on cr...

  16. Preparation, conduct and evaluation of exercises to test preparedness for a nuclear or radiological emergency. Emergency preparedness and response

    International Nuclear Information System (INIS)

    2005-04-01

    The aim of this publication is to serve as a practical tool for the preparation, conduct and evaluation of exercises to test preparedness for response to a nuclear or radiological emergency. It fulfils in part the functions assigned to the IAEA under Article 5.a(ii) of the Convention on Assistance in Case of a Nuclear Accident or Radiological Emergency (Assistance Convention), namely, to collect and disseminate to States Parties and Member States information concerning the methodologies, techniques and available results of research on such emergencies. To ensure effective response to radiation emergencies when needed, provisions should be made for regular training of emergency response personnel. As stated in Preparedness and Response for a Nuclear or Radiological Emergency (Safety Requirements, Safety Standard Series No. GS-R-2), 'The operator and the response organizations shall make arrangements for the selection of personnel and training to ensure that the personnel have the requisite knowledge, skills, abilities, equipment, procedures and other arrangements to perform their assigned response functions'. A further requirement is that 'Exercise programmes shall be conducted to ensure that all specified functions required to be performed for emergency response and all organizational interfaces for facilities in threat category I, II or III and the national level programmes for threat category IV or V are tested at suitable intervals'. In 2004 the IAEA General Conference, in resolution GC(48)/RES/10 encouraged Member States to 'implement the Safety Requirements for Preparedness and Response to a Nuclear or Radiological Emergency'. This document is published as part of the IAEA Emergency Preparedness and Response Series to assist in meeting these requirements and to fulfil Article 5 of the Assistance Convention. It was developed based on a number of assumptions about national and local capabilities. Therefore, the exercise structure, terms and scenarios must be

  17. Forgiveness and Defense Style

    Science.gov (United States)

    Maltby, John; Day, Liz

    2004-01-01

    Within the literature on the psychology of forgiveness, researchers have hypothesized that the 1st stage in the process of being able to forgive is the role of psychological defense. To examine such a hypothesis, the authors explored the relationship between forgiveness and defense style. The 304 respondents (151 men, 153 women) completed measures…

  18. Tigers with Artistic Style.

    Science.gov (United States)

    Holt, Maureen

    2003-01-01

    Presents an art lesson used with sixth-grade students in which they painted their school mascot (a tiger) in the style of a famous artist. Explains that students selected an artist, such as Andrew Wyeth or Edvard Munch. Describes how the students created their tigers. (CMK)

  19. Inuit-Style Animals.

    Science.gov (United States)

    Peterson, Rayma

    1999-01-01

    Presents an art activity where students create Inuit-style animals. Discusses the Inuit (Eskimo) artform in which the compositions utilize patterning and textures, such as small lines signifying fur. Explains that this project is well suited to a study of animals or to integrate with a social studies unit about Canada. (CMK)

  20. Designing Diverse Learning Styles.

    Science.gov (United States)

    Williamson, Ronald D.

    1998-01-01

    Presents strategies for middle level principals to strengthen their instructional program. Includes suggestions for creating a climate receptive to change by raising staff awareness of their own learning style diversity; modeling values through using instructional tools such as Bloom's Taxonomy in interaction with staff; and using stories,…

  1. Styles of Communication

    Directory of Open Access Journals (Sweden)

    Camelia M. Cmeciu

    2009-07-01

    Full Text Available Styles of Communicationeste o nouărevistăinternaţionalăcare va fipublicatăanual de Facultatea detiinţe ale Comunicării, Universitatea„Danubius” din Galaţi, în colaborare cu Comitetul de Filologie al Academieidetiinţe din Polonia, filiala Wroclaw.

  2. Learning Styles and Computers.

    Science.gov (United States)

    Geisert, Gene; Dunn, Rita

    Although the use of computers in the classroom has been heralded as a major breakthrough in education, many educators have yet to use computers to their fullest advantage. This is perhaps due to the traditional assumption that students differed only in their speed of learning. However, new research indicates that students differ in their style of…

  3. Style in Educational Television

    Science.gov (United States)

    Cain, John

    1976-01-01

    Characteristics of broadcast educational television for adult audiences are discussed in terms of: style in television, television grammar, and course and resource-type programs. The current British Broadcasting Company (BBC) Adult Literacy Project and the television program "On the Move" are used as examples. (LH)

  4. Audience, Style and Criticism

    Science.gov (United States)

    Pimm, David; Sinclair, Nathalie

    2009-01-01

    The primary focus for this article involves aspects of professional mathematical writing and examines the possibility of a form of literary criticism in relation to it. By means of examples from contemporary style guides for academic articles in mathematics (AMS, MAA), as well as the writing of mathematicians (Hamilton, Dedekind) from earlier…

  5. Creating a Leadership Style

    Science.gov (United States)

    Bonnici, Charles A.

    2011-01-01

    Many articles about school improvement talk about data-driven instruction and statistics. In the barrage of evaluative numbers, school leaders can forget that teaching and leading are arts, not sciences. Positive outcomes depend on the ambience of the school, which is a direct result of the leadership style of its principal and assistant…

  6. Perspective: Louisville Style

    Science.gov (United States)

    Lott, Debra

    2010-01-01

    Louisville, Kentucky is an eclectic town of architectural styles from Greek revival to Renaissance Revival to Post modernism, not to mention an entire street dedicated to artsy mom and pop stores. Louisville is second only to the New York City Soho district in terms of the number of its cast-iron facades. Many of these building's fronts have…

  7. A Manual of Style.

    Science.gov (United States)

    Nebraska State Dept. of Education, Lincoln.

    This "Manual of Style" is offered as a guide to assist Nebraska State employees in producing quality written communications and in presenting a consistently professional image of government documents. The manual is not designed to be all-inclusive. Sections of the manual discuss formatting documents, memorandums, letters, mailing…

  8. The Style of Gorgias.

    Science.gov (United States)

    Consigny, Scott

    1992-01-01

    Examines two prominent schools of critics who employ a hermeneutic strategy and who arrive at conflicting interpretations of Gorgias's overall "philosophy." Argues that in fact both schools misconstrue the nature of Gorgias's writing. Presents an alternative reading of Gorgias' style. (TB)

  9. Viability of Escherichia coli O157:H7 in ground and formed beef jerky prepared at levels of 5 and 20% fat and dried at 52, 57, 63 or 68 degrees C in a home-style dehydrator.

    Science.gov (United States)

    Faith, N G; Le Coutour, N S; Alvarenga, M B; Calicioglu, M; Buege, D R; Luchansky, J B

    1998-06-16

    Beef jerky batter was prepared to fat contents of about 5 and 20% and inoculated with about 10(8) cfu g(-1) of a five-strain inoculum of Escherichia coli O157:H7. Pathogen numbers were determined in the raw batter and in the strips formed from it after drying at 52, 57, 63, and 68 degrees C for times that ranged from 2 to 20 h. For both the high and low fat products, pathogen numbers were reduced by about 5 log10 cfu g(-1) within 4 h drying at 68 degrees C and within 8 h drying at 63 degrees C. At 57 degrees C, a 5-log10-unit reduction was achieved within 10h drying for the 5% fat product and within 16 h drying for the 20% fat product. At 52 degrees C, a 5-log10-unit reduction was achieved within 10 h drying for the 5% fat product and within 20 h drying for the 20% fat product. In at least one of the three trials for all four drying temperatures tested, the pathogen was present following enrichment of the samples in synthetic media. The calculated D values decreased from 2.59, 2.48, 1.23, and 1.17 as the temperature increased from 52, 57, 63, and 68 degrees C and as the fat content decreased from 20 to 5%. However, there was no direct correlation between the moisture-to-protein ratio and either the doneness of the strips or the viability of the pathogen. These data indicate that the fat content and the time and temperature at which strips are dried directly impact the viability of E. coli O157:H7 in ground and formed beef jerky.

  10. Improving Technical, Tactical and Psychological Preparation of Freestyle Wrestlers

    Directory of Open Access Journals (Sweden)

    Pakulin Serhij

    2016-12-01

    Full Text Available Objectives: 1 to justify the ways of improvement of training free style wrestlers to improve the results of their activities and competitive sports skills; 2 to identify the areas of improvement of psychological preparation and the structure of complex psycho-pedagogical methods for optimizing mental condition of free style wrestlers. Material and methods: The following methods were used in the study: analysis and synthesis of the scientific data of methodological literature; pedagogical supervision; survey (interview, questionnaire; analysis of freestyle wrestlers competitive activity; testing of physical and psychological fitness; pedagogical experiment; methods of mathematical and statistical analysis of research results. Results: it has been demonstrated that there is a necessity to improve technical, tactical and psychological preparation of freestyle fighters; the basic problems of the process have been defined. Conclusion: 1 the method of preparation of freestyle wrestlers has been grounded and the feasibility of its use for rapid making the best technical and tactical decisions in a competitive activity has been proved. It is proposed to include specific tactical training methods for each action and various combinations of basic actions into the coach program of wrestling; 2 the directions of improving psychological preparation and the structure of complex psychological and pedagogical methods of optimizing the mental condition of free style wrestlers are substantiated.

  11. Children's Thinking Styles, Play, and Academic Performance

    Science.gov (United States)

    Holmes, Robyn M.; Liden, Sharon; Shin, Lisa

    2013-01-01

    Based on the study of seventy-four middle school children of mostly Filipino and part Hawaiian heritages, this article explores the relationships of children's thinking styles, play preferences, and school performance. Using the Group Embedded Figures Test, the Articulation of the Body Scale, and written responses to three questions, the authors…

  12. Comprehending APA Style through Manuscript Analysis.

    Science.gov (United States)

    Smith, Gabie E.; Eggleston, Tami J.

    2001-01-01

    Describes an activity designed to enhance undergraduate student comprehension of the American Psychological Association (APA) manual and style where students examined a poorly written paper for errors in relation to the APA guidelines. Reports the results of a study that tested the effectiveness of the activity. (CMK)

  13. Parenting Style Transitions and Delinquency

    Science.gov (United States)

    Schroeder, Ryan D.; Mowen, Thomas J.

    2014-01-01

    Parenting style has been extensively analyzed as a contributor to juvenile delinquency in the criminological literature, but no research to date has assessed the prevalence of parenting style changes during adolescence or the influence of such parenting style changes on juvenile delinquency. Drawing from the life course theory, the results show…

  14. Dominant Leadership Style in Schools

    Science.gov (United States)

    Rajbhandari, Mani Man Singh

    2006-01-01

    The dominant leadership style is defined by the situation and the kind of organizational environment and climate. This, however, does not sufficiently define the leadership qualities in school organizations. There are other factors which also determine the dominant leadership style, which are the traits and style, teachers commitments, pass out…

  15. Style drift in private equity

    NARCIS (Netherlands)

    Cumming, D.; Fleming, G.; Schwienbacher, A.

    2009-01-01

    We introduce the concept of style drift to private equity investment. We present theory and evidence pertaining to style drifts in terms of a fund manager's stated focus on particular stages of entrepreneurial development. We develop a model that derives conditions under which style drifts are less

  16. The Myth of Learning Styles

    Science.gov (United States)

    Riener, Cedar; Willingham, Daniel

    2010-01-01

    There is no credible evidence that learning styles exist. In this article, the authors begin by defining "learning styles"; then they address the claims made by those who believe that they exist, in the process acknowledging what the authors consider the valid claims of learning-styles theorists. But in separating the wheat from the…

  17. Learning styles in otolaryngology fellowships.

    Science.gov (United States)

    Varela, David A Diaz Voss; Malik, Mohammad U; Laeeq, Kulsoom; Pandian, Vinciya; Brown, David J; Weatherly, Robert A; Cummings, Charles W; Bhatti, Nasir I

    2011-12-01

    Previous studies have identified a predominant learning style in trainees from different specialties, more recently in otolaryngology residents. The purpose of our study was to determine a predominant learning style within otolaryngology fellowships and to identify any differences between otolaryngology fellows and residents. We conducted a survey of otolaryngology fellows at 25 otolaryngology fellowship programs accredited by the Accreditation Council for Graduate Medical Education. We emailed Kolb's Learning Style Index version 3.1 to 16 pediatric otolaryngology (PO) and 24 otology/neurotology (ON) fellows. This index is a widely used 12-item questionnaire. The participants answered each item in the questionnaire as it applied to their preferred learning style: accommodating, converging, diverging, or assimilating. Results were then analyzed and compared between each subspecialty and the previously reported preferred styles of otolaryngology residents. Ten PO and 20 ON fellows completed the survey, with an overall response rate of 75%. PO and ON fellows (60% of each group) preferred a learning style that was "balanced" across all four styles. For ON fellows, 35% preferred converging and 5% preferred accommodating styles. For PO fellows, converging and accommodating styles accounted for 20% each. It was previously reported that 74.4% of otolaryngology residents prefer either converging or accommodating styles. We believe that the fellowship training environment calls for fellows to use more than one learning style to become proficient physicians, hence the trend toward potentially developing a balanced style when at this level. Copyright © 2011 The American Laryngological, Rhinological, and Otological Society, Inc.

  18. Experiential learning and changing leadership style.

    Science.gov (United States)

    Zanecchia, M D

    1985-11-01

    One of the many problems facing the nursing profession today is the lack of preparedness of its leaders. Nursing educators, collaborating with nursing service, can teach baccalaureate students leadership skills and to develop leadership styles. Experiential real-world management tasks selected by faculty and head nurses can serve as learning opportunities. Students can learn leadership ability and change style. Utilizing t-test, the before and after course mean scores on the standardized Leadership Ability Evaluation instrument were statistically analyzed. Significant differences and style changes were identified. Students in the total class became more effective leaders as did the students in both the traditional and experiential groups. Traditional students (lecture only) became less autocratic-submissive and more democratic. The experiential group significantly became less autocratic-aggressive, less laissez-faire and more democratic.

  19. Learning styles and academic outcome: the validity and utility of Vermunt's Inventory of Learning Styles in a British higher education setting.

    Science.gov (United States)

    Boyle, Elizabeth A; Duffy, Tim; Dunleavy, Karen

    2003-06-01

    Vermunt's (1994) Inventory of Learning Styles (ILS) integrates four components of learning: processing strategies, regulation strategies, mental models of learning and learning orientations. Using explanatory factor analysis, Vermunt (1998) identified four different learning styles, meaning-directed, reproduction-directed, application-directed and undirected, which displayed characteristic patterns of factor loadings across the four components of learning. The aims of the current study were to test the generalisability of Vermunt's integrated model of learning with a sample of students from a British university and to establish whether different learning styles were associated with different academic outcomes. A total of 273 students from a British university took part. Confirmatory factor analysis was used to test Vermunt's four-factor model of learning styles and compare it with alternative models. Interrelationships between components of the ILS were examined in more detail using regression analyses. The relationship between learning style and academic outcome was also examined. Fit indices indicated that Vermunt's four-factor model of learning styles provided the best fit for the current sample. Path estimates associated with meaning-directed and reproduction-directed learning styles loaded across components as described by Vermunt but application-directed and undirected learning styles loaded mainly on conceptions and orientations components. Undirected learning style had a low negative association with academic performance, while the meaning-directed learning style had a low positive association with academic performance. Although the ILS did identify Vermunt's four learning styles, different learning environments influence the precise characteristics of each learning style.

  20. Standard Operating Procedure for the Preparation of Lead-Containing Paint Films and Lead-in-Paint Diagnostic Test Materials

    Science.gov (United States)

    This SOP describes the preparation of stand-alone, lead paint films, prepared according to the old paint recipes. Further, this SOP describes the use of these paint films for the preparation of simulated old paints on a variety of substrates. Substrates used included wood, stee...

  1. Evaluation of Solvita compost stability and maturity tests for assessment of quality of end-products from mixed latrine style compost toilets

    Energy Technology Data Exchange (ETDEWEB)

    Hill, Geoffrey B., E-mail: geoff.hill@geog.ubc.ca [University of British Columbia, Department of Geography, 1984 West Mall, Vancouver, Canada V6T 1Z2 (Canada); Baldwin, Susan A. [Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, B.C., Canada V6T 1Z3 (Canada); Vinnerås, Bjorn [Swedish University of Agricultural Sciences, Box 7032, SE-750 07 Uppsala (Sweden)

    2013-07-15

    Highlights: • Solvita® stability and maturity tests used on composting toilet end-product. • Solvita® ammonia better suited in evaluation of feedstock suitability for vermicomposting. • No clear value of Solvita® stability test due to prevalent inhibition of decomposition by ammonia. - Abstract: It is challenging and expensive to monitor and test decentralized composting toilet systems, yet critical to prevent the mismanagement of potentially harmful and pathogenic end-product. Recent studies indicate that mixed latrine composting toilets can be inhibited by high ammonia content, a product of urea hydrolysis. Urine-diverting vermicomposting toilets are better able to accomplish the goals of remote site human waste management by facilitating the consumption of fecal matter by earthworms, which are highly sensitive to ammonia. The reliability of Solvita® compost stability and maturity tests were evaluated as a means of determining feedstock suitability for vermicomposting (ammonia) and end-product stability/completeness (carbon dioxide). A significant linear regression between Solvita® ammonia and free ammonia gas was found. Solvita® ranking of maturity did not correspond to ranking assigned by ammonium:nitrate standards. Solvita® ammonia values 4 and 5 contained ammonia levels below earthworm toxicity limits in 80% and 100% of samples respectively indicative of their use in evaluating feedstock suitability for vermicomposting. Solvita® stability tests did not correlate with carbon dioxide evolution tests nor ranking of stability by the same test, presumably due to in situ inhibition of decomposition and microbial respiration by ammonia which were reported by the Solvita® CO{sub 2} test as having high stability values.

  2. Evaluation of Solvita compost stability and maturity tests for assessment of quality of end-products from mixed latrine style compost toilets

    International Nuclear Information System (INIS)

    Hill, Geoffrey B.; Baldwin, Susan A.; Vinnerås, Bjorn

    2013-01-01

    Highlights: • Solvita® stability and maturity tests used on composting toilet end-product. • Solvita® ammonia better suited in evaluation of feedstock suitability for vermicomposting. • No clear value of Solvita® stability test due to prevalent inhibition of decomposition by ammonia. - Abstract: It is challenging and expensive to monitor and test decentralized composting toilet systems, yet critical to prevent the mismanagement of potentially harmful and pathogenic end-product. Recent studies indicate that mixed latrine composting toilets can be inhibited by high ammonia content, a product of urea hydrolysis. Urine-diverting vermicomposting toilets are better able to accomplish the goals of remote site human waste management by facilitating the consumption of fecal matter by earthworms, which are highly sensitive to ammonia. The reliability of Solvita® compost stability and maturity tests were evaluated as a means of determining feedstock suitability for vermicomposting (ammonia) and end-product stability/completeness (carbon dioxide). A significant linear regression between Solvita® ammonia and free ammonia gas was found. Solvita® ranking of maturity did not correspond to ranking assigned by ammonium:nitrate standards. Solvita® ammonia values 4 and 5 contained ammonia levels below earthworm toxicity limits in 80% and 100% of samples respectively indicative of their use in evaluating feedstock suitability for vermicomposting. Solvita® stability tests did not correlate with carbon dioxide evolution tests nor ranking of stability by the same test, presumably due to in situ inhibition of decomposition and microbial respiration by ammonia which were reported by the Solvita® CO 2 test as having high stability values

  3. Revisiting the Concept of "Style Match"

    Science.gov (United States)

    Zhang, Li-fang; Sternberg, Robert J.; Fan, Jieqiong

    2013-01-01

    Background: Intellectual style, an encompassing term for such constructs as learning style, teaching style, teaching approach, and thinking style, refers to one's preferred way of processing information. For the past several decades, whether or not there is a need for a match between teachers' teaching styles and students' learning styles has been…

  4. Analysis of Mathematics Critical Thinking Students in Junior High School Based on Cognitive Style

    Science.gov (United States)

    Agoestanto, A.; Sukestiyarno, YL; Rochmad

    2017-04-01

    The purpose of this research was to determine the critical thinking ability of mathematics from junior high school students based on FI and FD cognitive style. Data of this research were taken from students grade VIII at SMPN 2 Ambarawa. The research method used a descriptive qualitative approach. Data was taken with a testing method; the critical thinking was measured with WGCTA which is modified with mathematical problems, the cognitive style was measured with GEFT. The student’s test result was analysed, then four students were selected, the two of them are FI cognitive style, and the others are FD cognitive style, for qualitative analysis. The result showed that the ability of mathematics critical thinking students with FI cognitive style is better than FD cognitive style on the ability of inference, assumption, deduction, and interpretation. While on the aspect of argument evaluation, mathematics critical thinking ability of students with FD cognitive style is a little better than students with FI cognitive style.

  5. The mediational pathway among parenting styles, attachment styles and self-regulation with addiction susceptibility of adolescents*

    Science.gov (United States)

    Zeinali, Ali; Sharifi, Hassanpasha; Enayati, Mirsalahadine; Asgari, Parviz; Pasha, Gohlamreza

    2011-01-01

    BACKGROUND: The purpose of present study was to create and test a model that illustrates variables that influence the development of addiction susceptibility and determine how different styles of parenting may indirectly influence the addiction susceptibility of children through the mediators of attachment style and self-regulation. METHODS: Using random cluster sampling, 508 adolescent high school boys and girls aged 14-19 years were enrolled. Data were analyzed using structural equations modeling (path analysis). RESULTS: The results showed that authoritative and permissive parenting styles were associated with secure attachment whereas authoritarian and neglectful parenting styles were associated with insecure attachment. Insecure attachment was associated with a low level of self-regulation whereas secure attachment was associated with a high level of self-regulation. We found that a low level of self-regulation increased the adolescent's addiction susceptibility whereas a high level of self-regulation decreased their addiction susceptibility. CONCLUSIONS: The findings of present study suggest the authoritative and permissive parenting styles as the most efficient styles and authoritarian and neglectful parenting styles as the most inefficient styles in terms of addiction susceptibility. Accordingly, efficient parenting style training to parents should be the main goal of drug demand reduction program. PMID:22973379

  6. The mediational pathway among parenting styles, attachment styles and self-regulation with addiction susceptibility of adolescents.

    Science.gov (United States)

    Zeinali, Ali; Sharifi, Hassanpasha; Enayati, Mirsalahadine; Asgari, Parviz; Pasha, Gohlamreza

    2011-09-01

    The purpose of present study was to create and test a model that illustrates variables that influence the development of addiction susceptibility and determine how different styles of parenting may indirectly influence the addiction susceptibility of children through the mediators of attachment style and self-regulation. Using random cluster sampling, 508 adolescent high school boys and girls aged 14-19 years were enrolled. Data were analyzed using structural equations modeling (path analysis). The results showed that authoritative and permissive parenting styles were associated with secure attachment whereas authoritarian and neglectful parenting styles were associated with insecure attachment. Insecure attachment was associated with a low level of self-regulation whereas secure attachment was associated with a high level of self-regulation. We found that a low level of self-regulation increased the adolescent's addiction susceptibility whereas a high level of self-regulation decreased their addiction susceptibility. The findings of present study suggest the authoritative and permissive parenting styles as the most efficient styles and authoritarian and neglectful parenting styles as the most inefficient styles in terms of addiction susceptibility. Accordingly, efficient parenting style training to parents should be the main goal of drug demand reduction program.

  7. The role of parenting styles and teacher interactional styles in children's reading and spelling development.

    Science.gov (United States)

    Kiuru, Noona; Aunola, Kaisa; Torppa, Minna; Lerkkanen, Marja-Kristiina; Poikkeus, Anna-Maija; Niemi, Pekka; Viljaranta, Jaana; Lyyra, Anna-Liisa; Leskinen, Esko; Tolvanen, Asko; Nurmi, Jari-Erik

    2012-12-01

    This study examined the associations between parenting styles, teacher interactional styles, and children's reading and spelling skills. The sample consisted of 864 Finnish-speaking children and their parents (864 mothers, 864 fathers) and teachers (N=123). Children's risk for reading disabilities and reader status were assessed in kindergarten. Children were also tested on reading and spelling skills in Grades 1 and 2. Parenting styles and teacher interactional styles were measured using parents' and teachers' self-reports in Grade 1. First, the results indicated that both an authoritative parenting style and authoritative teacher interactional style positively predicted children's spelling skill development. Second, authoritative parenting was particularly beneficial for the spelling skill development of children who were at risk for reading disabilities. Third, authoritative teaching promoted spelling skill development particularly among children who were nonreaders in kindergarten but had no risk for reading disabilities. Finally, some evidence was found that authoritative teaching could compensate for the negative impact of nonauthoritative parenting on reading development among kindergarten nonreaders. Copyright © 2012 Society for the Study of School Psychology. Published by Elsevier Ltd. All rights reserved.

  8. Digital sound: The selection of critical programme material and preparation of recordings for CCIR tests on low bit-rate codecs

    Science.gov (United States)

    Gilchrist, N. H. C.

    A draft of a new recommendation on low bit-rate digital audio coding for broadcasting is in preparation within CCIR Study Group 10. As part of this work, subjective tests are being conducted to determine the preferred coding systems to be used in the various applications, and at which bit rates they should be used. The BBC has been contributing to the work by conducting preliminary listening tests to select critical program material, and by preparing recordings using this material for use by the CCIR's testing centers.

  9. The Effect of a Depression Prevention Program on Negative Cognitive Style Trajectories in Early Adolescents

    Science.gov (United States)

    Kindt, Karlijn C. M.; Kleinjan, Marloes; Janssens, Jan M. A. M.; Scholte, Ron H. J.

    2016-01-01

    As restructuring a negative cognitive style is a central skill taught in many depression prevention programs, we tested whether a universal prevention program evoked a change in negative cognitive style in adolescents. In addition, we examined distinct developmental trajectories of negative cognitive styles and assessed whether research condition…

  10. Autonomy and Self-Assessment of Individual Learning Styles Using the European Language Portfolio (ELP)

    Science.gov (United States)

    Peréz Cavana, María Luisa

    2012-01-01

    Interest in learning styles has produced innumerable studies over the last three decades. However, the application of knowledge of learning styles in education is a controversial matter, particularly in instruction, where there is less evidence of the usefulness of learning styles tests. This article is concerned with the role of reflection in…

  11. Put Your Style at Stake

    DEFF Research Database (Denmark)

    Johnsen, Christian Garmann; Olaison, Lena; Meier Sørensen, Bent

    2018-01-01

    This article uses the concept of style to rethink sustainable entrepreneurship. Our point of departure is the conceptual distinction between organization as style made durable and entrepreneurship as the disruption of style. We show that style is not simply an aesthetic category, but rather what...... that sustainable entrepreneurship consists of making an environmentally friendly and socially conscious style durable, but also of disrupting such a style. In order to illustrate our argument, we use the example of the sustainable smartphone producer Fairphone. In conclusion, we argue that the concept of style may...... ties different social practices together. While organization makes the connections between social practices durable, entrepreneurship disrupts such patterns. We further elucidate how organization and entrepreneurship are two intermingled processes – those of durability and disruption – that together...

  12. Managerial style in Spanish

    Directory of Open Access Journals (Sweden)

    Dra. Cristina Etayo Pérez

    2008-01-01

    Full Text Available This paper aims to study the management style of the Spanish advertising agencies. For this purpose, it explores the way in which the dimensions that define the nature of this concept arise in the sector chosen. The analysis begins with the definition of management style as concept followed by an exposition of its main functions and its fundamental dimensions. Then, the paper presents the methodology used to verify how these dimensions appear among managers as well as the results obtained during the fieldwork. Such methodology includes the achievement of in-depth interviews, with the help of a questionnaire of semi-structured questions, and the descriptive analysis of qualitative and quantitative information obtained from those interviews. The revision of these aspects enriches the study of management at the advertising agencies since it contributes to understand why certain actions have as a consequence one particular kind of relationship between directors and collaborators or another.

  13. Cross-sectional associations between maternal parenting styles, physical activity and screen sedentary time in children

    OpenAIRE

    Van der Geest, K. E.; Mérelle, S. Y. M.; Rodenburg, G.; Van de Mheen, D.; Renders, C. M.

    2017-01-01

    Background Children’s activity level, including physical activity (PA) and screen sedentary time (SST), is influenced by environmental factors in which parents play a critical role. Different types of parenting styles may influence children’s activity level. Inconsistent results were found on the association between parenting styles and PA, and few studies tested the association between parenting styles and SST. This study examined the association between parenting styles, PA and SST and the ...

  14. Autonomy and self-assessment of individual learning styles using the European Language Portfolio (ELP)

    OpenAIRE

    Peréz Cavana, Maria Luisa

    2012-01-01

    The enormous interest in the subject of learning styles within pedagogy has produced innumerable studies over the last three decades. However the application of learning styles knowledge to education is a controversial matter, in particular in instruction, where there is less evidence of the usefulness of learning styles tests.\\ud This paper draws on the fundamental role of reflection within learner autonomy and on how learners can develop awareness of their own learning style through self-as...

  15. News from the library : Working with words? The Chicago Manual of Style is there to help

    CERN Multimedia

    CERN Library

    2010-01-01

    Among the many useful resources the Library can offer you, the style manuals occupy a central role.   According to Wikipedia, "a style guide or style manual is a set of standards for the writing and design of documents, either for general use or for a specific publication, organization or field. The implementation of a style guide provides uniformity in style and formatting of a document." The 16th edition of the Chicago Manual of Style is now available online to the CERN community. It will provide you with general guidelines for preparing electronic manuscripts for books, along with citation, spelling, punctuation and abbreviations guidelines. You can access it here. Don't hesitate to send us your suggestions for any other style manuals that could be added to the Library collection. The contact email address for feedback is library.desk@cern.ch.      

  16. Rondocubism versus National Style

    Directory of Open Access Journals (Sweden)

    Hnídková, Vendula

    2010-11-01

    Full Text Available There is a range of various terms used to refer to architectural production from the period after the First World War, among the most common being 'Rondocubism' and the 'National Style'. The terminological ambiguity clearly points to the problem with the very character of the style of expression that lies behind these diverse labels. In the 1920s, figures of the interwar avant-garde were already sharply critical of the post-war decorative style, the leading figures of which were the architects Pavel Janák and Josef Gočár. While this negative stigma was later overcome, following several thematic studies, it is still possible to look for other inspiring sources outside aesthetic categories that were directed at clarifying this theme. Extensive social projects had architects employed in all sorts of artistic activities, and therefore a possible answer to what the essence of the style was is offered by the wider political and cultural context. After the foundation of the Czechoslovak Republic, the former protagonists of architectural Cubism and their colleagues from the Czechoslovak Workshop Association, Artěl and the School of Decorative Arts attained such social standing that they could effectively influence local artistic development. Through the individual conception applied to official commissions they created a visual identity of the new state system. As is apparent from their theoretical writings, they found their sources of information for ornamental decoration of buildings and craft artefacts by bonding with local tradition. This did not of course mean directly borrowing from folk-art prototypes. Advanced forms of national art were intended to help establish Czechoslovakia in the international scene and were also a conscious attempt through a more folkish form of expression to appeal to the wider strata of the population.

  17. Parenting styles and economics

    OpenAIRE

    Zilibotti, Fabrizio

    2015-01-01

    Does the economy influence the way people bring up their children? How can we determine and measure a child’s utility? How can parenting styles be categorized in an economic model? These are the questions that Professor Fabricio Zilibotti of the University of Zurich addressed in his honorary lecture ‘Parenting with Style’, which he delivered at the April International Academic Conference during the 5th LCSR international workshop ‘Social and Cultural Changes in Cross-National Perspective: Sub...

  18. XML Style Guide

    Science.gov (United States)

    2015-07-01

    Transfer Standard URI uniform resource identifier W3C World Wide Web Consortium XML extensible markup language XSD XML schema definition XML Style...XML Overview The XML standard is a specification produced by the World Wide Web Consortium ( W3C ), whose original intent was to provide a machine...15, July 2015 10 Figure 7. IHAL Use Schema Modularity and Composability 4.2 Schema Format Define the schema according to the W3C XML schema

  19. Framing Gangnam Style

    Directory of Open Access Journals (Sweden)

    Hyunsun Catherine Yoon

    2017-08-01

    Full Text Available This paper examines the way in which news about Gangnam Style was framed in the Korean press. First released on 15th July 2012, it became the first video to pass two billion views on YouTube. 400 news articles between July 2012 and March 2013 from two South Korean newspapers - Chosun Ilbo and Hankyoreh were analyzed using the frame analysis method in five categories: industry/economy, globalization, cultural interest, criticism, and competition. The right-left opinion cleavage is important because news frames interact with official discourses, audience frames and prior knowledge which consequently mediate effects on public opinion, policy debates, social movement and individual interpretations. Whilst the existing literature on Gangnam Style took rather holistic approach, this study aimed to fill the lacuna, considering this phenomenon as a dynamic process, by segmenting different stages - recognition, spread, peak and continuation. Both newspapers acknowledged Gangnam Style was an epochal event but their perspectives and news frames were different; globalization frame was most frequently used in Chosun Ilbo whereas cultural interest frame was most often used in Hankyoreh. Although more critical approaches were found in Hankyoreh, reflecting the right-left opinion cleavage, both papers lacked in critical appraisal and analysis of Gangnam Style’s reception in a broader context of the new Korean Wave.

  20. Towards a concept of food-related life style

    DEFF Research Database (Denmark)

    Grunert, Klaus G.

    choice remains to be demonstrated. A cognitive deductive approach is presented as a theoretically more well-founded alternative. It defines life style as the system of cognitive categories, scripts, and their associations, which relate a set of products to a set of values. A concept of food-related life......Life style has become popular in explaining food choice. In this paper the way life style studies are usually conducted is criticized based on a) that the methods lack a theoretical foundation, b) that the statistical methods are questionable, and c)that the explanatory power with regard to food...... style should hence contain elements like shopping scripts, meal preparation scripts, desired higher-order food attributes, food usage situations, and desired consequences of food products....

  1. CHC cognitive abilities, executive functions, cognitive styles, and reading achievement in children aged 8 to 12: tests of multiple mediation and moderation

    OpenAIRE

    Murrihy, Cherée

    2017-01-01

    Poor reading achievement continues to be a major social and political issue, with 4.5% of students in year 3 and 6.2% of students in year 5 in Australia achieving below minimum standards in reading, as identified in the recent National Assessment Program -- Literacy and Numeracy (NAPLAN) testing (Ministerial Council on Education Employment Training and Youth Affairs, 2012). Taking advantage of recent advances in psychometrically driven modelling in cognitive science, this dissertation s...

  2. Development and Testing of an Automated 4-Day Text Messaging Guidance as an Aid for Improving Colonoscopy Preparation.

    Science.gov (United States)

    Walter, Benjamin Michael; Klare, Peter; Neu, Bruno; Schmid, Roland M; von Delius, Stefan

    2016-06-21

    In gastroenterology a sufficient colon cleansing improves adenoma detection rate and prevents the need for preterm repeat colonoscopies due to invalid preparation. It has been shown that patient education is of major importance for improvement of colon cleansing. Objective of this study was to assess the function of an automated text messaging (short message service, SMS)-supported colonoscopy preparation starting 4 days before colonoscopy appointment. After preevaluation to assess mobile phone usage in the patient population for relevance of this approach, a Web-based, automated SMS text messaging system was developed, following which a single-center feasibility study at a tertiary care center was performed. Patients scheduled for outpatient colonoscopy were invited to participate. Patients enrolled in the study group received automated information about dietary recommendations and bowel cleansing during colonoscopy preparation. Data of outpatient colonoscopies with regular preparation procedure were used for pair matching and served as control. Primary end point was feasibility of SMS text messaging support in colonoscopy preparation assessed as stable and satisfactory function of the system. Secondary end points were quality of bowel preparation according to the Boston Bowel Preparation Scale (BBPS) and patient satisfaction with SMS text messaging-provided information assessed by a questionnaire. Web-based SMS text messaging-supported colonoscopy preparation was successful and feasible in 19 of 20 patients. Mean (standard error of the mean, SEM) total BBPS score was slightly higher in the SMS group than in the control group (7.3, SEM 0.3 vs 6.4, SEM 0.2) and for each colonic region (left, transverse, and right colon). Patient satisfaction regarding SMS text messaging-based information was high. Using SMS for colonoscopy preparation with 4 days' guidance including dietary recommendation is a new approach to improve colonoscopy preparation. Quality of colonoscopy

  3. Correlation Between University Students' Kinematic Achievement and Learning Styles

    Science.gov (United States)

    Çirkinoǧlu, A. G.; Dem&ircidot, N.

    2007-04-01

    In the literature, some researches on kinematics revealed that students have many difficulties in connecting graphs and physics. Also some researches showed that the method used in classroom affects students' further learning. In this study the correlation between university students' kinematics achieve and learning style are investigated. In this purpose Kinematics Achievement Test and Learning Style Inventory were applied to 573 students enrolled in general physics 1 courses at Balikesir University in the fall semester of 2005-2006. Kinematics Test, consists of 12 multiple choose and 6 open ended questions, was developed by researchers to assess students' understanding, interpreting, and drawing graphs. Learning Style Inventory, a 24 items test including visual, auditory, and kinesthetic learning styles, was developed and used by Barsch. The data obtained from in this study were analyzed necessary statistical calculations (T-test, correlation, ANOVA, etc.) by using SPSS statistical program. Based on the research findings, the tentative recommendations are made.

  4. Methodology of determining student's cognitive styles and its application for teaching physics.

    Science.gov (United States)

    Grebenev, Igor V; Lozovskaya, Ludmila B; Morozova, Ekaterina O

    2014-01-01

    A psychological foundation of differentiation of learning on the basis of students' individual characteristics (cognitive styles) with orientation to physics education in high school is discussed. The computer testing technique for preliminary determination of students' cognitive styles is proposed. It is based on the assumed connection between test parameters and parameters of degree of manifestation of cognitive style. The combined method of refining students' cognitive styles, based on the observations of their learning activity, is proposed. Personality traits, characterizing particular cognitive styles, are determined.

  5. Quick Preparation of Moisture-Saturated Carbon Fiber-Reinforced Plastics and Their Accelerated Ageing Tests Using Heat and Moisture

    Directory of Open Access Journals (Sweden)

    Masao Kunioka

    2016-06-01

    Full Text Available A quick method involving the control of heat and water vapor pressure for preparing moisture-saturated carbon fiber-reinforced plastics (CFRP, 8 unidirectional prepreg layers, 1.5 mm thickness, epoxy resin has been developed. The moisture-saturated CFRP sample was obtained at 120 °C and 0.2 MPa water vapor in 72 h by this method using a sterilizer (autoclave. The bending strength and viscoelastic properties measured by a dynamic mechanical analysis (DMA remained unchanged during repetitive saturation and drying steps. No degradation and molecular structural change occurred. Furthermore an accelerated ageing test with two ageing factors, i.e., heat and moisture was developed and performed at 140–160 °C and 0.36–0.62 MPa water vapor pressure by using a sealed pressure-proof stainless steel vessel (autoclave. The bending strength of the sample decreased from 1107 to 319 MPa at 160 °C and 0.63 MPa water vapor pressure in 9 days. Degraded samples were analyzed by DMA. The degree of degradation for samples was analyzed by DMA. CFRP and degraded CFRP samples were analyzed by using a surface and interfacial cutting analysis system (SAICAS and an electron probe micro-analyzer (EPMA equipped in a scanning electron microscope.

  6. Preparing the Field for Feasibility Testing of a Parenting Intervention for War-Affected Mothers in Northern Uganda.

    Science.gov (United States)

    Wieling, Elizabeth; Mehus, Christopher; Yumbul, Cigdem; Möllerherm, Julia; Ertl, Verena; Laura, Achan; Forgatch, Marion; Neuner, Frank; Catani, Claudia

    2017-06-01

    In this article, we discuss the successful implementation of an adapted evidence-based parenting intervention for families affected by two decades of war in Northern Uganda. The adaptation and adoption of such interventions to support mental health and family functioning is widely endorsed by prevention scientists and considered a priority in global mental health. The preparation and early adoption phases of engaging with a highly vulnerable community affected by war trauma are documented in this paper along with a discussion of the steps taken to adapt a parenting intervention for cultural and contextual fit. This study is a component of an overall program of research aimed at reducing the long-term negative effects of war on parenting practices and childhood outcomes, which have considerable implications for preventing mental, neurological, and substance-use disorders. The processes described here cover a 4-year period culminating in the implementation of the nine-session Enhancing Family Connection intervention piloted with a group of 14 mothers. The lessons in cultural adaptation have been valuable and the feasibility results promising for further testing the intervention. © 2015 Family Process Institute.

  7. Is there a risk of trace element contamination in herbal preparations? A test study on the lichen Cetraria islandica.

    Science.gov (United States)

    Giordani, Paolo; Minganti, Vincenzo; Brignole, Daniele; Malaspina, Paola; Cornara, Laura; Drava, Giuliana

    2017-08-01

    Lichens are a source of unique secondary metabolites, which have been proved to have many biological properties with possible pharmaceutical roles, including e.g. antioxidant, antimicrobial, antifungal or anti-inflammatory activities and to be worth of consideration for potential human use. However, lichens lack cuticolar tissues and are exposed to several atmospheric contaminants, including trace elements. This work aims at exploring the potential toxicity of herbal preparations derived by the lichen Cetraria islandica due to trace element contamination, testing whether different concentrations may be observed, depending on the origin of the raw material. Fourteen samples of C. islandica, as cut dried thalli occurring on the European market, have been bought from different providers. For each sample, the concentrations of As, Cd, Co, Cu, Fe, Mn, Ni, P, Pb, V and Zn were measured on comminuted herbal substance and on the corresponding decoction, using atomic emission spectrometry (ICP-OES). The elemental concentrations in decoctions were significantly lower than those measured in raw materials, dropping down to levels of negligible health concern. Differences observed in raw materials were not observed anymore in the corresponding decoctions. Also, the elemental transfer rate from dried lichen to decoction was extremely element-specific, ranging from 2% for Cu to 95% for Zn. Copyright © 2017 Elsevier Ltd. All rights reserved.

  8. Addressing Learning Style Criticism: The Unified Learning Style Model Revisited

    Science.gov (United States)

    Popescu, Elvira

    Learning style is one of the individual differences that play an important but controversial role in the learning process. This paper aims at providing a critical analysis regarding learning styles and their use in technology enhanced learning. The identified criticism issues are addressed by reappraising the so called Unified Learning Style Model (ULSM). A detailed description of the ULSM components is provided, together with their rationale. The practical applicability of the model in adaptive web-based educational systems and its advantages versus traditional learning style models are also outlined.

  9. Leadership styles and quality of work life in SMEs

    Directory of Open Access Journals (Sweden)

    T. S. Nanjundeswaraswamy

    2015-01-01

    Full Text Available Small and Medium Enterprises (SMEs in India are currently facing the challenges of increased competitions. In such environment, labor retention is very important factor for competition and survival. In this context, appropriate leadership styles and Quality of Work Life (QWL are very important factors for survival. Literature on QWL is limited to SMEs and several studies commonly correlated with only QWL dimensions but no study on QWL has association with Leadership styles. This empirical study is accomplished to predict QWL in relation to Transformational and Transactional leadership styles. The sample consists of 240 Mechanical Manufacturing SMEs in Bangalore, India. To draw the inference chi-square test, Pearson correlation and regression analysis was carried out for the collected data using Mini Tab14. The results indicate that 25% of SMEs have implemented good QWL, in 56.6% of SMEs have implemented Transformational leadership styles; QWL of SMEs has significant association with Leadership styles. QWL and Leadership styles of SMEs are independent of demographical factors of SMEs like age of the firms, size of the firms, and cost of the project. QWL dimensions like work environment, relation and cooperation, autonomy of work has a significant association with leadership style. For both transformational and transactional leadership style job satisfaction and job security has highest correlation coefficient.

  10. Impulsive-reflective cognitive style, metacognition, and emotion in adolescence.

    Science.gov (United States)

    Palladino, P; Poli, P; Masi, G; Marcheschi, M

    1997-02-01

    The study investigated the relationship between reflective or impulsive cognitive style, metacognitive functioning, and depression in young adolescents. Metacognitive functioning (metacognitive knowledge about reading and memory, monitoring of text comprehension) and self-reported depressive feelings were analyzed in a group of subjects who showed a Reflective or Impulsive cognitive style. The sample consisted of 56 junior high-school students (Grades 6, 7, and 8) selected from a larger original group of 61 subjects. We excluded from the original group those with an IQ below 75 on both the Verbal and Performance subscales on the short form of the WISC-R, those reported by teachers to have a severe learning disability, and those that did not complete the test battery due to long absences from school. The reflective-impulsive cognitive style was identified with the Matching Familiar Figures Test-20. Using the median of the distribution for both Latency (17 sec. per item) and Errors (9 errors) on this task, the sample was divided in four partially overlapping subgroups: 16 with Impulsive cognitive style (Latency below the median, Errors above the median), 13 with Reflective cognitive style (Latency above the median, Error below the median), 4 fast and accurate (both scores below the median), and 11 slow and inaccurate (both scores above the median). Twelve subjects with one or both scores coinciding with the critical value (median) were excluded. Analysis showed that subjects with Impulsive cognitive style had significantly lower scores than those with Reflective cognitive style in monitoring of comprehension of text. No differences were found on monitoring by eighth graders, irrespective of cognitive style. No differences between the two groups were found in metacognitive knowledge. Subjects with Impulsive cognitive style had significantly higher scores than subjects with Reflective cognitive style on a self-rating scale for childhood depression, the Children

  11. Learning styles of postgraduate and undergraduate medical students.

    Science.gov (United States)

    Shukr, Irfan; Zainab, Roop; Rana, Mowadat H

    2013-01-01

    To compare learning styles of undergraduate and postgraduate medical students. Observational, comparative study. Department of Medical Education, Army Medical College, NUST, Rawalpindi, Pakistan, during February and March 2012. A total of 170 students were divided into two equal groups of undergraduate students of Army Medical College, and postgraduate students of Armed Forces Post Graduate Medical Institute, Rawalpindi. Learning Style Questionnaire (LSQ) was used to assess and categorize the participants into Honey and Mumford classification of learning styles. The responses of each student ranging from 'very strong,' 'strong', 'moderate', and 'low' preference towards activist, theorist, reflector and pragmatist learning styles were compiled. The two groups were compared using SPSS version 17, using Fisher's exact test and the chi-square test. A p-value of $lt; 0.05 was considered significant. Preferences for all four learning styles were present in both groups. The results reveal an overall statistically significant difference in the 'very strong' preference in learning styles between the two study groups (p=0.002). Among the undergraduate students, 45% had a very strong preference for being an activist, whereas in postgraduate students, 38% had very strong preference for reflector, and 35% for theorist. This was statistically significant for activist, and reflector, and attained a p-value of learning style was pragmatist in both undergraduate and postgraduate students. Diversity of learning styles at undergraduate and postgraduate level of medical education calls for multiplicity of instructional and assessment modalities to match them. The learning styles amongst the undergraduate medical students are different from the postgraduates. The postgraduates commonly have the reflector learning style while the undergraduates are predominantly activists and theorists.

  12. Child rearing styles, dental anxiety and disruptive behaviour: an exploratory study

    NARCIS (Netherlands)

    Krikken, J.B.; Veerkamp, J.S.J.

    2008-01-01

    Aim: This was to explore the relation between children's dental anxiety, their behaviour during treatment and their parent's rearing style. Also the parents' preparation of the child for dental treatment was related to behaviour and parental rearing style. Methods: The parents of 100 children,

  13. Leadership Styles Promote Teamwork

    OpenAIRE

    Khater Aldoshan

    2015-01-01

    This paper will evaluate the importance of learning leadership styles and the explanation of when and how each one is used in the workforce. In this paper many experts have been cited that are well-known in the field of leadership. Also this paper will concentrate on the importance of teamwork in the workforce and there are many examples of how teamwork is effective for creating the best possible outcomes for creativity and productivity. In the television industry creativity is an essential c...

  14. Leadership Styles Promote Teamwork

    Directory of Open Access Journals (Sweden)

    Khater Aldoshan

    2015-08-01

    Full Text Available This paper will evaluate the importance of learning leadership styles and the explanation of when and how each one is used in the workforce. In this paper many experts have been cited that are well-known in the field of leadership. Also this paper will concentrate on the importance of teamwork in the workforce and there are many examples of how teamwork is effective for creating the best possible outcomes for creativity and productivity. In the television industry creativity is an essential component of the job description and inspirational leadership that promotes teamwork is essential.

  15. Styles of success

    DEFF Research Database (Denmark)

    Dahlgaard, Jens Jørn; Nørgaard, Anders; Jakobsen, Søren

    1997-01-01

    Corporate success stories tend to emphasize the "great men" theory of history. But now a European research project established the managerial attributes that can turn an ordinary leader into one ideal for the pursuit of business excellence. The emergence of five leadership styles as crucial drivers...... of business excellence points to a clear agenda for success. Setting clear strategic goals and the ability to take a long-term view of an organization's direction, combined with other leadership attributes such as creativity, teambuilding and learning, are principal keys to creating an excellent organization...

  16. Process modeling style

    CERN Document Server

    Long, John

    2014-01-01

    Process Modeling Style focuses on other aspects of process modeling beyond notation that are very important to practitioners. Many people who model processes focus on the specific notation used to create their drawings. While that is important, there are many other aspects to modeling, such as naming, creating identifiers, descriptions, interfaces, patterns, and creating useful process documentation. Experience author John Long focuses on those non-notational aspects of modeling, which practitioners will find invaluable. Gives solid advice for creating roles, work produ

  17. Net Generation's Learning Styles in Nursing Education.

    Science.gov (United States)

    Christodoulou, Eleni; Kalokairinou, Athina

    2015-01-01

    Numerous surveys have confirmed that emerging technologies and Web 2.0 tools have been a defining feature in the lives of current students, estimating that there is a fundamental shift in the way young people communicate, socialize and learn. Nursing students in higher education are characterized as digital literate with distinct traits which influence their learning styles. Millennials exhibit distinct learning preferences such as teamwork, experiential activities, structure, instant feedback and technology integration. Higher education institutions should be aware of the implications of the Net Generation coming to university and be prepared to meet their expectations and learning needs.

  18. Step styles of pedestrians at different densities

    Science.gov (United States)

    Wang, Jiayue; Weng, Wenguo; Boltes, Maik; Zhang, Jun; Tordeux, Antoine; Ziemer, Verena

    2018-02-01

    Stepping locomotion is the basis of human movement. The investigation of stepping locomotion and its affecting factors is necessary for a more realistic knowledge of human movement, which is usually referred to as walking with equal step lengths for the right and left leg. To study pedestrians’ stepping locomotion, a set of single-file movement experiments involving 39 participants of the same age walking on a highly curved oval course is conducted. The microscopic characteristics of the pedestrians including 1D Voronoi density, speed, and step length are calculated based on a projected coordinate. The influence of the projection lines with different radii on the measurement of these quantities is investigated. The step lengths from the straight and curved parts are compared using the Kolmogorov–Smirnov test. During the experiments, six different step styles are observed and the proportions of different step styles change with the density. At low density, the main step style is the stable-large step style and the step lengths of one pedestrian are almost constant. At high density, some pedestrians adjust and decrease their step lengths. Some pedestrians take relatively smaller and larger steps alternately to adapt to limited space.

  19. Different Styles for Different Needs – The Effect of Cognitive Styles on Idea Generation

    DEFF Research Database (Denmark)

    Lomberg, Carina; Kollmann, Tobias; Stockmann, Christoph

    2017-01-01

    Researchers are engaged in finding the precursors for innovation. Drawing on Kirton's Adaption-Innovation (KAI) Inventory, we explicitly test Kirton's central premise that cognitive styles differentiate between preferences for producing ideas in a certain way. We argue that the generation of either...

  20. Style in science communication.

    Science.gov (United States)

    Bucchi, Massimiano

    2013-11-01

    There is little doubt that during the past few decades science communication efforts aimed at non-expert audiences have increased in quantity and intensity on a global scale. Public engagement and outreach activities have now become a routine - when not a prominent - feature for several research institutions in Europe. However, it would be difficult for both scholars and those involved in science communication to agree on the impact of these activities, on the long-term implications of the 'science communication movement' and on the indicators we should develop and employ in order to assess impact. The paper argues that quality is a relevant issue and challenge for contemporary science communication. Style is relevant to addressing that challenge, insofar as it relates to discussions about how to strengthen the quality of science communication, suggesting a different perspective other than the traditional normative/prescriptive framework. The notion of style also fruitfully connects the debate on science communication with a rich tradition of studies in the history and sociology of science.

  1. News from the Library: Style matters!

    CERN Multimedia

    CERN Library

    2010-01-01

    Our daily work almost always involves writing - articles, reports and documents of all kinds. And even if CERN's core activity is hard science, this doesn't mean our writing style and the language we use are not important. The CERN Library is here to help.   In addition to the Chicago Manual of Style mentioned some weeks ago in the Bulletin, the CERN Library now also has two paper copies of the latest edition of the Oxford Style Manual, which is an important reference work for the preparation of manuscripts for publication and includes guidelines on citations, spelling, punctuation and abbreviations. Thanks to the Library, you can also access important language-related tools in both CERN's official languages such as Oxford Reference Online, giving access to a large choice of dictionaries and handbooks, as well as the Oxford English Dictionary. French speakers can enjoy access to Le grand Robert, one of the most important dictionaries for the French language. All these dictionaries can be con...

  2. Style popularity and the comovement of stocks

    NARCIS (Netherlands)

    Wouters, T.; Plantinga, A.

    2006-01-01

    We examine to what extent the popularity of an investment style can be attributed to style investing. The style investing hypothesis predicts that assets in the same style show strong comovement with respect to their underlying fundamentals and that reclassifying assets into a new style raises its

  3. Trades of the Living Dead: Style Differences, Style Persistence and Performance of Currency Fund Managers

    OpenAIRE

    Momtchil Pojarliev; Richard M. Levich

    2008-01-01

    We make use of a new database on daily currency fund manager returns over a three-year period, 2005-08. This higher frequency data allows us to estimate both alpha measures of performance and beta style factors on a yearly basis, which in turn allows us to test for persistence. We find no evidence to support alpha persistence; a manager's alpha in one year is not significantly related to his alpha in the prior year. On the other hand, there is substantial evidence for style persistence; funds...

  4. Identity Styles: Predictors of Reading and Writing Abilities

    Directory of Open Access Journals (Sweden)

    Zohre Mohamadi

    2016-09-01

    Full Text Available How the individual differences prime different learning process is well addressed in literature. But, what is missing from these analyses is how learners with different identity styles approach reading and writing skills and if different identity styles can predict differentiated language performance. The present study aims at investigating the relationship between identity styles, and reading/writing skills of Iranian intermediate female EFL learners. One the basis of the results of Nelson language proficiency test, 120 participants were selected to participate in this research. Participants' answers to Berzonsky's Identity Style Inventory (ISI3 and reading and writing parts of Preliminary English Test were analyzed. The results indicated that informational and normative identity styles were found to be positively correlated and diffuse-avoidant style was negatively correlated with reading and writing abilities whereas commitment identity didn't bear any significant relationships. The findings also indicated that informational style acted as the best predictor of these skills. Implications for language teachers are suggested.

  5. Integrating Teaching Styles with Students' Learning Styles (Series of 14).

    Science.gov (United States)

    Lippitt, Linda; And Others

    This document begins with a report of a study of the learning styles of American Indian students at the Sante Fe Indian School (New Mexico). Santa Fe Indian School is a secondary school of 550 students, primarily from the Pueblo communities of New Mexico. A learning style assessment instrument was administered to 459 students, Grades 7-12, in 4…

  6. Traduction automatique et style (Machine Translation and Style).

    Science.gov (United States)

    Loffler-Laurian, Anne-Marie

    1985-01-01

    Machine translation has been criticized for its inability to provide language style, but for specialized or technical texts, of which there are increasing numbers, machine translation with its obligatory post-editing may be effective, and the "style" of these translations may be a reflection of the error patterns caught in post-editing. (MSE)

  7. Linking Learning Styles and Learning on Mobile Facebook

    Directory of Open Access Journals (Sweden)

    Yu-ching Chen

    2015-04-01

    Full Text Available With continued development of related technologies, Web 2.0 has become an important site of learning innovation. In particular, social networking sites such as Facebook, which have become popular, have the potential to function as an educational tool enabling peer feedback, interaction, and learning in a social context. Preparing appropriate environments for learners with different needs is essential to learning in general and online learning in particular. Yet, in order to create such learning environments, educators must understand differences in students’ learning styles. Although some research focuses on the effects of individual differences such as age and gender on the use of social networking sites, experimental research related to students’ learning styles is still limited. This study used Kolb’s Learning Style Model to investigate differences in student learning outcomes and satisfaction using mobile Facebook for learning, according to learning style. Results showed that participants with “Assimilating” and “Diverging” learning styles performed better than those with “Accomodating” and “Converging” learning styles did and had higher self-efficacy, observational modelling and habit strength toward learning in mobile Facebook. The paper also makes suggestions for integrating mobile Facebook into class and recommendations for future research.

  8. Life Style Assessment: So What!

    Science.gov (United States)

    Aubry, William E.

    The construct life style was used by Alfred Adler to describe the characteristic way in which individuals act and think. Followers of his theories are now collecting evidence to support or validate his contentions. The assessment of client life styles serves: (1) to make the client aware of his misconceptions, (2) as a reference point for therapy,…

  9. Reconsidering Styles of Regulatory Enforcement

    DEFF Research Database (Denmark)

    May, Peter J.; Winter, Søren

    2000-01-01

    inspectors’ enforcement styles as consisting of multiple components, rather than a single continuum. We show that inspectors’ enforcement styles comprise the degree of formalism and the degree of coercion that they exercise when carrying out inspections. A second contribution is in showing the relationship...

  10. Reconsidering Styles of Regulatory Enforcement

    DEFF Research Database (Denmark)

    J. May, Peter; Winter, Søren

    2007-01-01

    inspectors’ enforcement styles as consisting of multiple components rather than a single continuum. We show that inspectors’ enforcement styles are comprised of the degree formalism and the degree of coercion that they exercise when carrying out inspections. A second contribution is showing the relationship...

  11. Supervisory Styles: A Contingency Framework

    Science.gov (United States)

    Boehe, Dirk Michael

    2016-01-01

    While the contingent nature of doctoral supervision has been acknowledged, the literature on supervisory styles has yet to deliver a theory-based contingency framework. A contingency framework can assist supervisors and research students in identifying appropriate supervisory styles under varying circumstances. The conceptual study reported here…

  12. Teacher Uses of Learning Styles

    DEFF Research Database (Denmark)

    Klitmøller, Jacob

    2014-01-01

    Among all the various learning style models, the Dunn & Dunn Learning Style Model (DDLSM) in particular has become a widely used method transforming teaching practice. Dunn & Dunn research literature is scarce when it comes to how the model is used by teachers in general. This is an issue since...

  13. Humor and creative life styles.

    Science.gov (United States)

    Richman, J

    2001-01-01

    This paper is based upon the writings of William James in the late 19th century, and Alfred Adler and Sigmund Freud in the 20th, enriched by the contributions of later personality and role theorists. The self is defined as the unique organization of each person; a style is the self in action. Different life styles and their components are expressed in different situations. I posit that humor and positive thinking, combined with meaning and purpose, are vital components of all constructive life styles. The knowledge of life styles cuts through diagnostic labels to reveal our universal humanity. It can be fruitfully applied to patients and nonpatients alike and, I found, for the self-understanding of therapist. The clinical application of life styles is illustrated through numerous vignettes.

  14. Intercultural conflict styles: literature review

    Directory of Open Access Journals (Sweden)

    Batkhina A.A.

    2017-10-01

    Full Text Available Analytical review of foreign psychological research on the international conflict styles is presented in this article. Intercultural conflict is understood as an interpersonal conflict between representatives of different cultures. The main models describing the intercultural conflict styles are analyzed: the dual concern model, the intercultural conflict styles inventory model, the face negotiation model. The publication provides a brief review of modern studies’ results of behavior predictors in the intercultural conflict; special attention is paid to the analysis of the influence of culture and intercultural communication apprehension on the choice of conflict styles. The importance of assessing the conflict styles effectiveness used in the situation of intercultural interaction is noted. In conclusion, unresolved problems and actual trends in the study of behavior in the intercultural conflict are designated.

  15. The Dangers of Test Preparation: What Students Learn (And Don't Learn) about Reading Comprehension from Test-Centric Literacy Instruction

    Science.gov (United States)

    Davis, Dennis S.; Vehabovic, Nermin

    2018-01-01

    The authors offer guidance on recognizing and resisting test-centric instruction in reading comprehension. They posit that five practices indicate a test-centric view of comprehension: when the tested content is privileged, when the test becomes the text, when annotation requirements replace strategic thinking, when test items frame how students…

  16. Electrochemical methods for corrosion testing of Ce-based coating prepared on AA6060 alloy by dip immersion method

    Directory of Open Access Journals (Sweden)

    Jegdić Bore V.

    2013-01-01

    Full Text Available Dip-immersion is simple and cost-effective method for the preparation of Ce-based conversion coatings (CeCCs, a promising alternative to the toxic chromate coatings, on the metal substrates. In this work CeCCs were prepared on Al-alloy AA6060 from aqueous solution of cerium chloride at room temperature. Effect of immersion time and post-treatment in phosphate solution on the microstructure and corrosion properties of the coatings was studied. The longer immersion time, the thicker but nonhomogeneous and cracked CeCCs. The post-treatment contributed to the sealing of cracks, as proven by an increase in corrosion resistance compared with as-deposited coatings. CeCCs prepared at longer deposition time and post-treated showed much better corrosion protection than those prepared at short deposition time. A detailed EIS study was undertaken to follow the evolution of corrosion behaviour of CeCCs with time of exposure to aggressive chloride environment (3.5 % NaCl. For the sake of comparison, the EIS properties of bare AA6060 were also investigated. A linear voltammetry was performed to complete the study. Results confirmed a formation of protective CeCCs on AA6060 surface. However, even CeCCs prepared at longer deposition time and post-treated provided a short term protection in aggressive environment, due to the small thickness. [Projekat Ministarstva nauke Republike Srbije, br. III 45019 i br. III 45012

  17. Gender differences in the relationships among parenting styles and college student mental health.

    Science.gov (United States)

    Barton, Alison L; Kirtley, Michael S

    2012-01-01

    Levels of student depression may increase as stress increases; parenting styles may be one indirect source of stress. The authors examined the role of parenting style in relationship to student stress, anxiety, and depression, with focused attention on gender differences. Participants were 290 undergraduate students (58% female, mean age = 19). Cross-sectional design. Participants completed surveys containing measures of parenting styles, college stress, anxiety, and depression. Anxiety and stress acted as mediators between some maternal parenting styles and female student depression. No mediational relationships were found for male student ratings. Daughters may be more susceptible to the influences of maternal parenting styles, which can either prepare or fail to prepare them for management and avoidance of stressors that are encountered during the college transition. College counseling centers and student affairs personnel may wish to focus attention on the instruction of self-management and problem-solving skills for incoming students.

  18. Language, Communication and Style

    Directory of Open Access Journals (Sweden)

    Stăncuţa Ramona DIMA-LAZA

    2011-01-01

    Full Text Available Intercultural language and communication skills vary across culture. Blunders are the result of an improper understanding of other nation’s language, non-verbal communication or customs and traditions. The present paper represents an incursion into the world of inaccurate translations and misinterpretations caused by a lack of ability to overcome cultural and language barriers. It also provides solutions for such problems, exemplifying with relevant situations. It informs the reader about writing principles and style, examining the outcome of conveying an inaccurate message. People write, deliver speeches or communicate for different purposes: to learn something, to entertain or to make money. Whether it is about one reason or another, the basic idea is to comply with certain language codes in order to avoid cultural conflicts.

  19. Designing Judgement Styles

    DEFF Research Database (Denmark)

    Liu, Albert Fei

    2017-01-01

    The role played by Online Customer Reviews (OCRs) in consumers’ decision making decisions is increasingly prominent. Compelled by the paucity of understanding regarding how OCRs assist consumers’ decision making process, this study investigates how OCRs and the emerging OCR curation features...... facilitate consumers’ judgement styles in the light of the model of dual-system cognition function. This study postulates that the information cues available in numerical rating and opinionated review are conducive to intuitive and deliberate judgements respectively. Furthermore, OCR curation features can...... help to enhance judgements in response to OCRs through manipulating cue accessibility. Lastly, different judgement modes are expected to entail distinct decisional outcomes in terms of performance and justifiability. To empirically validate the proposed hypotheses, this study proposes a plan...

  20. Bidirectional Relations between Temperament and Parenting Styles in Chinese Children

    OpenAIRE

    Lee, Erica H.; Zhou, Qing; Eisenberg, Nancy; Wang, Yun

    2012-01-01

    The present study examined bidirectional relations between child temperament and parenting styles in a sample (n = 425) of Chinese children during elementary school period (age range = 6 to 9 years at Wave 1). Using two waves (3.8 years apart) of longitudinal data, we tested two hypotheses: (1) whether child temperament (effortful control and anger/frustration) at Wave 1 predicts parenting styles (authoritative and authoritarian parenting) at Wave 2, controlling for Wave 1 parenting; and (2) ...

  1. Parenting Style as a Moderator for Students' Academic Achievement

    Science.gov (United States)

    Ishak, Zahari; Low, Suet Fin; Lau, Poh Li

    2012-08-01

    Parenting styles have always been a crucial factor in influencing all aspects of a person's development. The purpose of this study is to test the structural equation model of academic achievement among the students using parenting styles as a moderator. The sample comprised 493 students from eight schools. Parenting styles are determined using the Parental Authority Questionnaire (Buri in J Pers Assess 57:110-119, 1991). Academic achievement is measured based on the students' performance in the Lower Secondary Assessment. Data were analyzed using structural equation modelling. Results demonstrated that model of authoritative and model of authoritarian fit the data of this study well. Both authoritative and authoritarian parenting styles are the most common practice of the parents. Parenting styles have been found to be a moderator of this study. The results indicated that parenting styles moderated the effect of academic self-concept on academic achievement. The impact of academic self-concept on academic achievement is found to be greater for the authoritative than the authoritarian parenting style.

  2. Investigation of Science Teachers’ Learning Styles with Various Variables

    Directory of Open Access Journals (Sweden)

    Orhan KARAMUSTAFAOĞLU

    2017-12-01

    Full Text Available It was aimed to determine learning styles according to Felder Silverman learning styles and to examine various variables in this research. The study was carried out through a descriptive design involving a survey model with a sample of 322 science student teachers studying at Amasya Faculty of Education on during 2016-2017 academic years. The "Learning Style Inventory" developed by Felder & Soloman (1994 and adapted to the Turkish language was used as a data collection tool. Data were analyzed using independent t-test and one-way analysis of variance (ANOVA. As a result of the research, it was determined that science teacher candidates had visual and sequential learning styles by doing, feeling, and doing. The highest score from the learning styles that the teacher candidates possessed was the visual learning style. In addition, learning styles differed according to gender, grade level and father education status in the survey. Based on the results of the research, necessary suggestions were made.

  3. A qualitative study on preparing EFL students to take the TOEFL internet-based (iBT) test in the Ukrainian context

    OpenAIRE

    Nikolaieva, Olena

    2016-01-01

    Master's thesis in Literacy The thesis at hand is a qualitative study that aimed at exploring methods and tasks used by teachers in Ukraine while preparing students to take the Test of English as a Foreign Language internet-based version (TOEFL iBT). The TOEFL test is a standardized test of English language proficiency for non-native English language speakers who intend to study in an academic environment, especially in the USA. In the thesis, general principles, education and management s...

  4. Strategies for reducing test anxiety and optimizing exam preparation in German university students: a prevention-oriented pilot project of the University of Würzburg.

    Science.gov (United States)

    Neuderth, Silke; Jabs, Burkhard; Schmidtke, Armin

    2009-06-01

    Test anxiety is a significant problem among university students which is frequently accompanied by a decline in performance and severe psychological problems. Studies of treatment methods of test anxiety were identified using literature searches of the Cochrane Library database of randomized controlled trials. A variety of intervention techniques for the treatment of test anxiety was detected, from which cognitive behavioral methods were found to be most effective for the treatment of test anxiety. According to empirical findings, university students should be taught strategies to cope with the demands and organization of their studies at a very early stage to prevent test anxiety and its concomitants. The University of Würzburg (Germany) started a pilot project in fall 2007 comprising lectures and peer coaching with the aim to optimize learning skills and exam preparation to prevent test anxiety. The evaluation of the present concept showed a high level of acceptance among students.

  5. The mediational pathway among parenting styles, attachment styles and self-regulation with addiction susceptibility of adolescents*

    OpenAIRE

    Zeinali, Ali; Sharifi, Hassanpasha; Enayati, Mirsalahadine; Asgari, Parviz; Pasha, Gohlamreza

    2011-01-01

    Background: The purpose of present study was to create and test a model that illustrates variables that influence the development of addiction susceptibility and determine how different styles of parenting may indirectly influence the addiction susceptibility of children through the mediators of attachment style and self-regulation. Methods: Using random cluster sampling, 508 adolescent high school boys and girls aged 14-19 years were enrolled. Data were analyzed using structural equation...

  6. Preparing and Testing a Magnetic Antimicrobial Silver Nanocomposite for Water Disinfection to Gain Experience at the Nanochemistry-Microbiology Interface

    Science.gov (United States)

    Furlan, Ping Y.; Fisher, Adam J.; Melcer, Michael E.; Furlan, Alexander Y.; Warren, John B.

    2017-01-01

    We describe a 2 h introductory laboratory procedure that prepares a novel magnetic antimicrobial activated carbon nanocomposite in which nanoscale sized magnetite and silver particles are incorporated (MACAg). The MACAg nanocomposite has achieved the synergistic properties derived from its components and demonstrated its applicability as an…

  7. Testing of microbial contamination during the preparation of the radiocompound [⁹⁰Y]DOTATOC for clinical trials: a process validation study by Media Fill approach.

    Science.gov (United States)

    Sirna, V; Garaboldi, L; Papi, S; Martano, L; Omodeo Salè, E; Paganelli, G; Chinol, M

    2010-10-01

    Radioisotopes used in nuclear radiopharmacy possess short half-lives, not allowing enough time to wait for completion of sterility tests. Moreover, carrying out sterility tests on highly radioactive solutions inside the hospital microbiology laboratory arises concerns about radioprotection. Therefore, the release of radiopharmaceuticals for injection is allowed in microbial analysis. For this reason, the effectiveness of the aseptic procedures has to be continuously assessed in order to guarantee the safety of the drug. The aim of this study was to validate the sterile preparation of [⁹⁰Y]DOTATOC by means of media fill test. In order to validate the process, a simulation test was used: the media fill test. To apply this method, operators simulated each step of the process using culture medium (Triptic Soy Broth, TSB) instead of actual radiopharmaceutical product. Media fill test procedure has been subdivided into 5 phases, from the simulation of reagent preparation through the dispensing operations up to ward delivery. After every step, the processed medium was incubated at 35 °C for 14 days. If the compounding procedures are adequately performed, no growth of microorganisms will be detected. Microbiological analyses, carried out on all vials obtained at the end of each step, showed no microbial growth. For this reason, sterility tests were considered satisfactory. Application of media-fill test allowed both to validate operative modality used for [⁹⁰Y]-DOTATOC handling and to attest the ability of operators who worked on it. Additionally, a correct quality control of the radiopharmaceutical i.v. preparations allows clinic infections control and prevention.

  8. Evaluating medical students on radiology clerkships in a filmless environment: use of an electronic test prepared from PACS and digital teaching collection images.

    Science.gov (United States)

    Mullins, M E; Will, M; Mehta, A; Novelline, R A

    2001-06-01

    The competency of medical students in radiology clerkships is traditionally evaluated with film images, projected slides of photographed films, or printed reproductions of films. As radiology departments switch to filmless imaging, it seemed appropriate to determine the feasibility of an electronic evaluation prepared directly from digital images. The image-based portion of a multiple-choice final examination was prepared as a PowerPoint presentation that included images downloaded from the departmental picture archiving and communication system (PACS) or digital teaching collections. The images were downloaded as bitmap files, imported to Adobe Photoshop for image editing, converted to tagged image file format, and finally imported to PowerPoint, where they were combined with text to create 50 questions. A liquid crystal diode projector displayed the questions, with a timer set to advance them automatically. The examination was easy and inexpensive to prepare (no photography costs). In an initial survey of 25 students, 17 (71%) of 24 students rated the resolution of images as excellent and five (21%) as good. No student gave an image a poor rating. Students preferred that images cover at least 40%-50% of the slides, and most approved of a blue background. An original allowance of 30 seconds per slide was reported to be too fast; the interval was increased to 45 seconds. An electronic final examination for medical students, prepared with images downloaded from PACS or digital teaching collections, is feasible, easy to prepare, and cost-effective, and it provides an excellent display of test images.

  9. Leadership = Communication? The Relations of Leaders’ Communication Styles with Leadership Styles, Knowledge Sharing and Leadership Outcomes

    Science.gov (United States)

    Bakker-Pieper, Angelique; Oostenveld, Wyneke

    2009-01-01

    Purpose The purpose of this study was to investigate the relations between leaders’ communication styles and charismatic leadership, human-oriented leadership (leader’s consideration), task-oriented leadership (leader’s initiating structure), and leadership outcomes. Methodology A survey was conducted among 279 employees of a governmental organization. The following six main communication styles were operationalized: verbal aggressiveness, expressiveness, preciseness, assuredness, supportiveness, and argumentativeness. Regression analyses were employed to test three main hypotheses. Findings In line with expectations, the study showed that charismatic and human-oriented leadership are mainly communicative, while task-oriented leadership is significantly less communicative. The communication styles were strongly and differentially related to knowledge sharing behaviors, perceived leader performance, satisfaction with the leader, and subordinate’s team commitment. Multiple regression analyses showed that the leadership styles mediated the relations between the communication styles and leadership outcomes. However, leader’s preciseness explained variance in perceived leader performance and satisfaction with the leader above and beyond the leadership style variables. Implications This study offers potentially invaluable input for leadership training programs by showing the importance of leader’s supportiveness, assuredness, and preciseness when communicating with subordinates. Originality/value Although one of the core elements of leadership is interpersonal communication, this study is one of the first to use a comprehensive communication styles instrument in the study of leadership. PMID:20700375

  10. The benefits of authoritative feeding style: caregiver feeding styles and children's food consumption patterns.

    Science.gov (United States)

    Patrick, Heather; Nicklas, Theresa A; Hughes, Sheryl O; Morales, Miriam

    2005-04-01

    This research tested the associations between caregiver feeding styles and children's food consumption patterns among African-American (AA) and Hispanic (H) caregivers and their preschool children. Participants were 231 caregivers (101 AA; 130 H) with children enrolled in Head Start. Caregivers completed questionnaires on authoritarian and authoritative feeding styles (Caregiver's Feeding Styles Questionnaire; CFSQ) and various aspects of children's food consumption patterns (availability of, feeding attempts for, and child's consumption of dairy, fruit, and vegetables). Simultaneous multiple regression analyses tested the unique contribution of feeding styles in predicting food consumption patterns. Authoritative feeding was positively associated whereas authoritarian feeding was negatively associated with the availability of fruit and vegetables. Authoritative feeding was also positively associated with attempts to get the child to eat dairy, fruit, and vegetables, and reported child consumption of dairy and vegetables. Authoritarian feeding was negatively associated with child's vegetable consumption. All results remained significant after controlling for child's gender and body mass index (BMI), and caregiver's ethnicity, BMI, and level of education. Overall, results provide evidence for the benefits of authoritative feeding and suggest that interventions to increase children's consumption of dairy, fruit, and vegetables should be targeted toward increasing caregivers' authoritative feeding behaviors.

  11. Parenting style and adolescent smoking.

    Science.gov (United States)

    O'Byrne, Kristin Koetting; Haddock, C Keith; Poston, Walker S C

    2002-06-01

    To investigate whether parenting style is an independent risk factor of smoking initiation and experimentation among adolescents, and whether there is a relationship between parenting style and readiness to quit, or nicotine dependence among smokers. The 84-item Health and Smoking Questionnaire, which assesses demographics, smoking status and smoking history, perceptions of risk and risk reduction, risk factors for tobacco use, and parenting style, was administered to 816 adolescents in grades 7 to 12 (mean age, 15.1 years) of whom 22.6% (n = 182) were smokers. Parenting style was measured by the brief, non-retrospective version of the Family of Origin Scale (FOS). Higher scores on the FOS indicated more positive perceived parenting style with high levels of intimacy and autonomy, characteristics of healthy parent-child relationships. Data were analyzed using a model-building approach to logistic regression with demographic and other psychosocial variables in the first two steps, and with parenting style as the last step. Results from two logistic regression models indicate that although parenting style is not a significant risk factor for smoking experimentation [odds ratio (OR) =.998; confidence interval (CI) =.977-1.019; p =.820], it is a significant independent risk factor for smoking initiation (OR =.950; CI =.930-.970; p =.000). Smokers who were more ready to quit had higher parenting style scores than those who were not ready to quit, and smokers who had made a serious quit attempt (an indicator of nicotine addiction) had higher parenting style scores than those who had not made a quit attempt. Moreover, nonsmokers who reported they would smoke a cigarette if their best friend offered had significantly lower parenting style scores than those who reported they would not smoke a cigarette. Additional research on parenting style and its impact on adolescent smoking with a more economically and ethnically diverse sample is warranted. If future research confirms

  12. Relationship between Academic Performance, Spatial Competence, Learning Styles and Attrition

    Directory of Open Access Journals (Sweden)

    Marianela Noriega Biggio

    2013-04-01

    Full Text Available This paper discusses the results of research on factors affecting academic performance and attrition in a sample of 1,500 freshman students majoring in architecture, design and urbanism at the Universidad de Buenos Aires, Argentina [University of Buenos Aires, Argentina] who were enrolled in a drafting course. The hypotheses we tested concern the mediating role of learning styles on the relationship between spatial competence and academic performance, learning-style differences by gender and cohort, and the relationship between attrition, spatial competence level and learning style. Statistical analysis of the data was performed and spatial competence enhanced by motivational profile was found to predict final achievement. Educational implications are identified, highlighting the need to promote in students those academic behaviors that characterize a self-regulated learning style and encourage the use of specific intellectual abilities.

  13. Gender differences in Croatian consumer decision-making styles

    Directory of Open Access Journals (Sweden)

    Ivan-Damir Anić

    2010-06-01

    Full Text Available This paper tests the applicability of the CSI instrument to measuring consumer decision-making styles in the Croatian environment. The analysis assesses the validity and the reliability of CSI scales and examines gender differences in consumer-decision making styles. Research results point to the existence of eight consumer characteristics and thus validate the applicability of CSI instrument in the Croatian environment. Our findings further indicate that there were gender differences on five factors of consumer-decision making styles (perfectionist, novelty-fashion consciousness, recreational-hedonistic consumer, impulsiveness, habitual shopping behavioral. No significant differences in consumer decision styles between men and women were found with regard to three factors (brand consciousness, price consciousness and confused by overabundant choice. The CSI measurement system may help practitioners to gain a better understanding of how to position their products and services more effectively.

  14. Quantitative in-situ TEM nanotensile testing of single crystal Ni facilitated by a new sample preparation approach.

    Science.gov (United States)

    Samaeeaghmiyoni, Vahid; Idrissi, Hosni; Groten, Jonas; Schwaiger, Ruth; Schryvers, Dominique

    2017-03-01

    Twin-jet electro-polishing and Focused Ion Beam (FIB) were combined to produce small size Nickel single crystal specimens for quantitative in-situ nanotensile experiments in the transmission electron microscope. The combination of these techniques allows producing samples with nearly defect-free zones in the centre in contrast to conventional FIB-prepared samples. Since TEM investigations can be performed on the electro-polished samples prior to in-situ TEM straining, specimens with desired crystallographic orientation and initial microstructure can be prepared. The present results reveal a dislocation nucleation-controlled plasticity, in which small loops induced by FIB near the edges of the samples play a central role. Copyright © 2016 Elsevier Ltd. All rights reserved.

  15. Test preparation and lifetime measurement of very thin carbon stripper foils made by a controlled DC arc-discharge method

    CERN Document Server

    Sugai, I; Oyaizu, M; Kawakami, H; Hattori, Y; Kawasaki, K; Hayashizaki, N

    2002-01-01

    We have prepared very thin plastic supported carbon stripper foils (1.2+-0.3 mu g/cm sup 2) using a controlled DC arc-discharge (CDAD) method. The lifetime of these foils was measured with 3.2 MeV Ne sup + ions. These foils recorded lifetimes about four times longer at the maximum and three times longer on the average than those commercially available foils produced by evaporation-condensation.

  16. Regulatory mode preferences for autonomy supporting versus controlling instructional styles.

    Science.gov (United States)

    Pierro, Antonio; Presaghi, Fabio; Higgins, Tory E; Kruglanski, Arie W

    2009-12-01

    Three studies carried out in educational settings examined determinants of teacher's instructional styles and students' degree of satisfaction with the learning climates created by such styles. Based upon regulatory mode theory, Studies 1 and 2 tested the hypotheses that teachers' locomotion orientation will be positively related, and their assessment orientation will be negatively related, to autonomy supportive (vs. controlling) instructional styles. Study 3 tested the hypothesis that students' regulatory mode will exhibit a fit effect with the prevalent learning climate in their school. Participants for Study 1 were 378 teachers (278 females); for Study 2 were 96 teachers (65 females); and for Study 3 were 190 students (all males). Participants completed questionnaires that included measures of teaching styles (Studies 1 and 2), perceived learning climate and satisfaction (Study 3), and regulatory mode orientations (Studies 1 and 3). In Study 2 regulatory mode orientations were experimentally induced. Results confirmed that teachers' autonomy supportive versus controlling styles were positively related to their locomotion orientations and negatively related to their assessment orientation, and that students with a stronger locomotion (vs. assessment) orientation reported a higher level of satisfaction when the learning climate was perceived as autonomy supportive (vs. controlling). The present studies show that teachers' preference for adopting an instructional style is influenced by their regulatory mode orientations, and that the effects of a learning climate on students' satisfaction are contingent on a fit between type of learning climate and students' regulatory mode orientations.

  17. EXPERIMENTAL SUBSTANTIATION OF ATTRIBUTIONAL STYLE IN TRAFFIC POLICE OFFICERS’ BEHAVIOR

    Directory of Open Access Journals (Sweden)

    Olga Vladimirovna Merkusheva

    2016-02-01

    Full Text Available The article prepared for the ‘Psychological and Methodological Aspects of Professional Personnel Training at Internal Affairs Bodies of the Russian Federation’ scholar tradition looks at the applied aspect of handling security issues by traffic police officers. It presents the results of empirical study of the employees’ psychological characteristics conducted to substantiate their attributional style, which determines the specific character as well as the qua-lity and reliability of traffic police officers’ performance. Traffic police officers’ attributional style of behavior is researched with the help of attributional cognitive techniques for hazard phenomena detection as well as social perception and attribution technique and is viewed as the most stable entity, which reflects the employee’s personal and professional focus.Goal: to provide empirical substantiation of attributional style in traffic police officers’ behavior as an integral personality characteristic that ensures timely detection of hazard phenomena.

  18. PLURILINGUAL COMPETENCE, STYLES AND VARIATION

    Directory of Open Access Journals (Sweden)

    Jyrki Kalliokoski

    2011-01-01

    Full Text Available The paper explores plurilingual competence in respect to language proficiency, language education and pluri- and multilingualism. The notion of communicative competence was introduced by Hymes (1972 as a reaction to chomskyan view of language as an autonomous system. Hymes’ notion of communicative competence originally included plurilingualism. The concept of communicative competence was quickly adopted to applied linguistics but the idea of a linguistic repertoire consisting of the competencies of linguistic varieties was not imported to SLA or language testing. The Hymesian perspective to plurilingualism as an essential dimension of communicative competence was revived in the Common European Framework (CEFR. However,the practice of applying the CEFR has mostly neglected the dimension on plurilingualism and plurilingual competence. The focus in the use of the CEFR has been on the different areas of language skills within one single language at a time, while the application of plurilingual practices has gained very little attention. The Hymesian notion of communicative competence has lived on in the sociolinguistic research tradition, especially within interactional sociolinguistics. The present paper relates the notion of plurilingual competence to its hymesian origin, to recent trends in plurilingual and pluricultural education, and to the sociolinguistic study of style and linguistic variation in multilingual communities. The article uses Finnish L2 data to show how plurilingual competence is used as an interactional resource.From the perspective of language learning, plurilingual competence enables speakers with different linguistic backgrounds to use their shared linguistic repertoire in order to ensure smooth interaction and achieve mutual understanding.

  19. Personal Change and Intervention Style

    Science.gov (United States)

    Andrews, John D. W.

    1977-01-01

    Presents a theory of personal change and analyzes growth-producing interventions using examples from the film, "Three Approaches to Psychotherapy". Compares the styles of Carl Rogers, Frttz Perls, and Albert Ellis to illustrate the theory. (Editor/RK)

  20. Advertising styles in different cultures

    Directory of Open Access Journals (Sweden)

    Krasulja Nevena

    2003-01-01

    Full Text Available Modern consumer is inhabitant of a "Global Village" as well as of its own national culture which largely influences his creation of a system of values, beliefs and style of life in general. According to adopted values and styles, consumers from different cultures have different buying behavior, different needs and preferences related to a product and they have their favorite advertising styles. As advertising reflects culture, symbols and rituals which are used are even more emphasized and strengthen cultural values, which are then used as a strong advertising style characteristic. Global advertisers are increasingly faced with different environment meaning. A fact that has been proved in practice is that standardized approach to advertising does not transmit values in a correct way, so the advertisers that want to achieve long term success must differentiate their brands to competitors'. In modern market environment strategy "Think globally, act locally" proved to be adequate for advertising in modern international market.

  1. Some students learning style particularities

    OpenAIRE

    Adriana PETRUS-VANCEA

    2009-01-01

    The investigation aimed two objectives, namely to study the relationship between the learning styles, strategies, motivation, orientations and opinions with regard to learning, of Biology Domain students, comparative with those from double domain Biology – Chemistry, and particular learning styles of students from different specialties, which are in the first year of study, comparative with those which are in the last year of cycle I (age III of study), under the Bologna system. A version ada...

  2. Style and ideology in translation

    CERN Document Server

    Munday, Jeremy

    2013-01-01

    Adopting an interdisciplinary approach, this book investigates the style, or 'voice,' of English language translations of twentieth-century Latin American writing, including fiction, political speeches, and film. Existing models of stylistic analysis, supported at times by computer-assisted analysis, are developed to examine a range of works and writers, selected for their literary, cultural, and ideological importance. The style of the different translators is subjected to a close linguistic investigation within their cultural and ideological framework.

  3. Some students learning style particularities

    Directory of Open Access Journals (Sweden)

    Adriana PETRUS-VANCEA

    2009-11-01

    Full Text Available The investigation aimed two objectives, namely to study the relationship between the learning styles, strategies, motivation, orientations and opinions with regard to learning, of Biology Domain students, comparative with those from double domain Biology – Chemistry, and particular learning styles of students from different specialties, which are in the first year of study, comparative with those which are in the last year of cycle I (age III of study, under the Bologna system. A version adapted by Trif, in 2007 [1], of the Learning Style Inventory (ILS, designed by Vermunt and Rijswijk (1998, was administrated to the total number of 77 students. Students of Biology specialization (Bologna system were largely learning style oriented to understanding and at those of the Biology-Chemistry (last generation of the old system we identified a style based on reproduction, but the differences of learning strategies and motivations, orientations and opinions were not statistically significant between the two groups of students. The second hypothesis formulated by us proved to be true, identifying significant statistically differences between the strategies, motives and opinions about learning of first academic year students, who prefer step by step learning or external guidance, learning orientation being to note, to obtain a degree, wishing much more support from teachers or colleagues (expressing an undirected learning style, compared with third academic year students, which use concrete processing of information, with getting a job motivation.

  4. Overeating styles and adiposity among multiethnic youth.

    Science.gov (United States)

    Ledoux, Tracey; Watson, Kathy; Baranowski, Janice; Tepper, Beverly J; Baranowski, Tom

    2011-02-01

    Reasons for inconsistent associations between overeating styles and adiposity among youth may include differences in effects by age, gender, or ethnicity; failure to control for social desirability of response; or adiposity measurement limitations. This study examined the relationship between overeating styles and multiple measures of adiposity, after controlling for social desirability and testing for moderation by ethnicity, age, and gender. Data from 304 9-10 year old children and 264 17-18 year old adolescents equally representing African American, Hispanic, and White ethnic groups were extracted from a larger cross-sectional study. Measures included the Dutch Eating Behavior Questionnaire (restrained, external, and emotional overeating subscales), the "Lie Scale" from the Revised Children's Manifest Anxiety Scale, and measured weight, height, waist circumference, and triceps skinfold. BMI z-score and a global adiposity index were calculated. Mixed model linear regression showed restraint was positively and external eating was negatively related to measures of adiposity. African American youth had a stronger inverse association between emotional eating and adiposity than White or Hispanic youth. Relationships were not influenced by social desirability nor moderated by age or gender. Overeating styles are related to adiposity in nearly all youth but the nature of these associations are moderated by ethnicity. Copyright © 2010 Elsevier Ltd. All rights reserved.

  5. Attachment style and interpersonal trauma in refugees.

    Science.gov (United States)

    Morina, Naser; Schnyder, Ulrich; Schick, Matthis; Nickerson, Angela; Bryant, Richard A

    2016-12-01

    Refugees can suffer many experiences that threaten their trust in others. Although models of refugee mental health have postulated that attachment securities may be damaged by refugee experiences, this has yet to be empirically tested. This study aimed to understand the relationship between the nature of traumatic experiences sustained by refugees and attachment styles. In a cross-sectional study, treatment-seeking refugees (N = 134) were assessed for traumatic exposure using the Harvard Trauma Questionnaire and Posttraumatic Diagnostic Scale. Attachment style was assessed using the Experiences in Close Relationship Scale. Whereas gender and severity of interpersonal traumatic events predicted avoidant attachment style (accounting for 11% of the variance), neither these factors nor non-interpersonal trauma predicted anxious attachment. Exposure to interpersonal traumatic events, including torture, is associated with enduring avoidant attachment tendencies in refugees. This finding accords with attachment theories that prior adverse interpersonal experiences can undermine secure attachment systems, and may promote avoidance of attachment seeking. This finding may point to an important process maintaining poor psychological health in refugees affected by interpersonal trauma. © The Royal Australian and New Zealand College of Psychiatrists 2016.

  6. Quality-control analytical methods: endotoxins: essential testing for pyrogens in the compounding laboratory, part 3: a simplified endotoxin test method for compounded sterile preparations.

    Science.gov (United States)

    Cooper, James F

    2011-01-01

    The first two parts of the IJPC series on endotoxin testing explained the nature of pyrogenic contamination and described various Limulus amebocyte lysate methods for detecting and measuring endotoxin levels with the bacterial endotoxin test described in the United States Pharmacopeia. This third article in that series describes the endotoxin test that is simplest to permorm for pharmacists who prefer to conduct an endotoxin assa at the time of compounding in the pharmacy setting.

  7. C-C1-02: Data Extraction From Text, Step 1: Preparing Test for Machine Processing

    Science.gov (United States)

    Carrell, David

    2010-01-01

    Background: Natural language processing (NLP) uses software to assist in the extraction of information from clinical text, a process usually performed entirely by chart abstractors. Before NLP can be applied the text in question must be prepared for machine processing. In research settings this pre- processing work often involves several successive and related tasks, requiring substantial amounts of time and attention from people representing various types of clinical, scientific and technical expertise. Appreciating the tasks and participants involved in pre-processing clinical text can make the work more manageable, efficient, and effective. Methods: The information presented here comes from case study analyses of three small-scale projects involving preparation of clinical text (pathology reports, radiology reports, and progress notes) for processing by the Cancer Text Information Extraction System. Supplementing these experiences is information from anecdotal conversations with natural language processing experts. Results: Ten separate pre-processing tasks were identified: obtaining source feeds, assessing completeness, de-duplication, universe description, cleaning and formatting, de-identification, database loading, sampling, preparation of the NLP system input feed, and quality assurance. Nine types of expertise or task participants required for preprocessing were identified: IRB representative, source-system manager, network/dbase administrator, programmer, statistician, investigator, informaticist, clinical domain expert, and manual chart abstractor. Conclusions: Pre-processing clinical text is an important phase and potentially challenging aspect of extracting information from clinical text using NLP. Because researchers require accurate information about the larger universe of documents or patients represented by the sampled and processed text, pre-processing can present numerous challenges, the solutions to which draw on many areas of expertise in a

  8. Preparation of ferric acetylacetonate, bonzonate and caprate labelled with Fe-55 and tests of application to liquid scintillation measurements

    International Nuclear Information System (INIS)

    Los Arcos, J.M.; Rodriguez Barquero, L.; Grau Malonda, A.

    1990-01-01

    The methods of preparation of ferric acetylacetonate, benzoate and caprate labelled with 55 Fe are described. The quenching effect, the spectral baehaviour and the count rate stability are studied by liquid scintillation measurements in toluene, INSTAGEL and HISAFE II, for two different values of the sample concentration. The ferric acetylaceton-ate is stable for all the three scintillators but shows a strong quench, while the ferric benzoate and caprate are stable only for INSTAGEL and HISAFE II showing no significant quench at the concentrat-ions of interest in habitual measurements. (Author)

  9. The Relationship Between Teaching Styles and Motivation to Teach Among Physical Education Teachers

    Science.gov (United States)

    Hein, Vello; Ries, Francis; Pires, Francisco; Caune, Agnese; Heszteráné Ekler, Judit; Emeljanovas, Arunas; Valantiniene, Irena

    2012-01-01

    This study aims to investigate how teachers' motivation to teach is related to different teaching styles. A hundred and seventy six physical education teachers from five European countries participated in the study. Teachers' motivation was measured using an instrument developed by Roth et al., 2007 based on the Self-Determination Theory (Deci and Ryan, 1985) which was tested for suitability for use with physical education teachers. The use of teaching styles was assessed through teachers' self-reported data according to the description of teaching styles presented by Curtner-Smith et al., 2001. The revised confirmatory factor model of the teachers' motivation instrument, with three factors, met the criteria for satisfactory fit indices. The results showed that teachers were more intrinsically motivated to teach than externally. Cross-cultural comparison indicated that the Spanish teachers were more intrinsically motivated whilst Lithuanian teachers were more externally motivated than teachers from the other four countries. Teachers from all five countries reported a more frequent use of reproductive styles than productive styles. The results of the present study confirmed the hypotheses that teachers' autonomous motivation is related to the student-centered or productive teaching styles whilst non-autonomously motivated teachers adopt more teacher-centered or reproductive teaching styles. Intrinsic and introjected motivation was significantly higher among teachers who more frequently employed productive teaching styles than teachers who used them less frequently. Intrinsically motivated teachers using more productive teaching styles can contribute more to the promotion physical activity among students. Key points PE teachers were more intrinsically motivated to teach than externally. Spanish PE teachers were more intrinsically motivated, whereas Lithuanian PE teachers were more externally motivated. Teachers from all five countries reported a more frequent use of

  10. Grapheme-colour synaesthesia is associated with a distinct cognitive style

    Directory of Open Access Journals (Sweden)

    Beat eMeier

    2013-09-01

    Full Text Available In this study we investigated whether synaesthesia is associated with a particular cognitive style. Cognitive style refers to preferred modes of information processing, such as a verbal style or a visual style. We reasoned that related to the enriched world of experiences created by synaesthesia, its association with enhanced verbal and visual memory, higher imagery and creativity, synaesthetes might show enhanced preference for a verbal as well as for a visual cognitive style compared to non-synaesthetes. In Study 1 we tested a large convenience sample of 1046 participants, who classified themselves as grapheme-colour, sound-colour, lexical-gustatory, sequence-space or as non-synaesthetes. To assess cognitive style, we used the revised verbalizer-visualizer questionnaire, which involves three independent cognitive style dimensions (verbal style, visual-spatial style, and vivid imagery style. The most important result was that those who reported grapheme-colour synaesthesia showed higher ratings on the verbal and vivid imagery style dimensions, but not on the visual-spatial style dimension. In Study 2 we replicated this finding in a laboratory study involving 24 grapheme-colour synaesthetes with objectively confirmed synaesthesia and a closely matched control group. Our results indicate that grapheme-colour synaesthetes prefer both a verbal and a specific visual cognitive style. We suggest that this enhanced preference, probably together with the greater ease to switch between a verbal and a vivid visual imagery style, may be related to cognitive advantages associated with grapheme colour synaesthesia such as enhanced memory performance and creativity.

  11. Grapheme-color synaesthesia is associated with a distinct cognitive style

    Science.gov (United States)

    Meier, Beat; Rothen, Nicolas

    2013-01-01

    In this study we investigated whether synaesthesia is associated with a particular cognitive style. Cognitive style refers to preferred modes of information processing, such as a verbal style or a visual style. We reasoned that related to the enriched world of experiences created by synaesthesia, its association with enhanced verbal and visual memory, higher imagery and creativity, synaesthetes might show enhanced preference for a verbal as well as for a visual cognitive style compared to non-synaesthetes. In Study 1 we tested a large convenience sample of 1046 participants, who classified themselves as grapheme-color, sound-color, lexical-gustatory, sequence-space, or as non-synaesthetes. To assess cognitive style, we used the revised verbalizer-visualizer questionnaire (VVQ), which involves three independent cognitive style dimensions (verbal style, visual-spatial style, and vivid imagery style). The most important result was that those who reported grapheme-color synaesthesia showed higher ratings on the verbal and vivid imagery style dimensions, but not on the visual-spatial style dimension. In Study 2 we replicated this finding in a laboratory study involving 24 grapheme-color synaesthetes with objectively confirmed synaesthesia and a closely matched control group. Our results indicate that grapheme-color synaesthetes prefer both a verbal and a specific visual cognitive style. We suggest that this enhanced preference, probably together with the greater ease to switch between a verbal and a vivid visual imagery style, may be related to cognitive advantages associated with grapheme color synaesthesia such as enhanced memory performance and creativity. PMID:24065938

  12. Increasing Effectiveness of Strategic Planning Seminars through Learning Style

    Science.gov (United States)

    Yildirim, Nail

    2010-01-01

    This research tests the effectiveness of taking learning style variables from the Kolb learning model in designing strategic planning seminars. We observe in our research that the participants in the seminar--school principals--positively judge the effectiveness of the seminar. The research also tests the seminar's effectiveness in terms of the…

  13. Effects of simulation game and cognitive style on students ...

    African Journals Online (AJOL)

    The study determined the effects of simulation game-assisted instruction and cognitive style on students' achievement in Integrated Science. It adopted a 2 x 2 non-randomized pre test, post test, control group quasi-experimental design in which the treatment, at two levels (simulation game-assisted instruction, teacher ...

  14. Adult Attention Deficit Hyperactivity Disorder and Parenting Styles.

    Science.gov (United States)

    Karbalaei Sabagh, Ali; Khademi, Mojgan; Noorbakhsh, Simasadat; Razjooyan, Katayoon; Arabgol, Fariba

    2016-03-01

    The aim of the present study was to compare the parenting styles in parents with and without adult attention deficit hyperactivity disorder (ADHD) who had children with ADHD. It was a case-control study with convenience sampling strategy. Participants were recruited from the parents of previously diagnosed children with ADHD referred to Imam Hossein Hospital, Tehran/ Iran. Ninety parents with adult ADHD and 120 normal parents were chosen by Conner's Adult ADHD Screening Scale (CAARS) and psychiatrist interview. Using Baumrind Parenting Styles Questionnaire and Arnold Parenting Scale, parenting styles were assessed in both the groups. Results from independent samples t-test indicated that Authoritarian parenting style (F = 0.576, p 0.022) and Over reacting style (F = 7.976, p 0.045) were significantly higher in cases. On the other hand, controls were using Permissive style (F = 0.131, p 0.044) more than cases. The results are consistent with prior studies; these findings can improve the content of parent training for children with ADHD, who have adult ADHD themselves.

  15. The influence of maternal psychosocial characteristics on infant feeding styles.

    Science.gov (United States)

    Barrett, Katherine J; Thompson, Amanda L; Bentley, Margaret E

    2016-08-01

    Maternal feeding styles in infancy and early childhood are associated with children's later risk for overweight and obesity. Maternal psychosocial factors that influence feeding styles during the complementary feeding period, the time during which infants transition from a milk-based diet to one that includes solid foods and other non-milk products, have received less attention. The present study explores how maternal psychosocial factors-specifically self-esteem, parenting self-efficacy, parenting satisfaction, and depression symptoms-influence mothers' infant feeding styles at nine months of age, a time during which solid foods eating habits are being established. Participants included 160 low-income, African-American mother-infant pairs in central North Carolina who were enrolled in the Infant Care and Risk of Obesity Study. Regression models tested for associations between maternal psychosocial characteristics and pressuring and restrictive feeding styles. Models were first adjusted for maternal age, education, marital status and obesity status. To account for infant characteristics, models were then adjusted for infant weight-for-length, distress to limitations and activity level scores. Maternal self-esteem was negatively associated with pressuring to soothe. Maternal parenting self-efficacy was positively associated with restriction-diet quality. Maternal parenting satisfaction and depression symptoms were not associated with feeding styles in the final models. Focusing on strengthening maternal self-esteem and parenting self-efficacy may help to prevent the development of less desirable infant feeding styles. Copyright © 2016 Elsevier Ltd. All rights reserved.

  16. Efficacy of gamma irradiation on H5N1 for the preparation of hemagglutination Inhibition test antigen

    International Nuclear Information System (INIS)

    Chaisingh, Arunee; Thammasart, Suree; Kamolsiripichaiporn, Somjai; Piadang Nattayana

    2006-09-01

    The result of the efficiencies of gamma irradiation at the dose of 10-60 kGy on highly pathogenic avian influenza virus, H5N1 (Thai isolate) revealed that gamma irradiation at the dose of 10 and 20 kGy could reduce the infectivity of Hanna but gamma irradiation at 30-60 kGy could inactivate H5N1 virus completely. All doses of gamma irradiation used in this experiment had no effect on antigenicity of hemagglutinin protein. Thus, gamma irradiation at the dose of 30- 60 kGy could be use safely for the antigen preparation to detect the antibody against H5N1 virus.

  17. Preparation and characterization of nickel-spiked freshwater sediments for toxicity tests: toward more environmentally realistic nickel partitioning.

    Science.gov (United States)

    Brumbaugh, William G; Besser, John M; Ingersoll, Christopher G; May, Thomas W; Ivey, Chris D; Schlekat, Christian E; Garman, Emily Rogevich

    2013-11-01

    Two spiking methods were compared and nickel (Ni) partitioning was evaluated during a series of toxicity tests with 8 different freshwater sediments having a range of physicochemical characteristics. A 2-step spiking approach with immediate pH adjustment by addition of NaOH at a 2:1 molar ratio to the spiked Ni was effective in producing consistent pH and other chemical characteristics across a range of Ni spiking levels. When Ni was spiked into sediment having a high acid-volatile sulfide and organic matter content, a total equilibration period of at least 10 wk was needed to stabilize Ni partitioning. However, highest spiking levels evidently exceeded sediment binding capacities; therefore, a 7-d equilibration in toxicity test chambers and 8 volume-additions/d of aerobic overlying water were used to avoid unrealistic Ni partitioning during toxicity testing. The 7-d pretest equilibration allowed excess spiked Ni and other ions from pH adjustment to diffuse from sediment porewater and promoted development of an environmentally relevant, 0.5- to 1-cm oxic/suboxic sediment layer in the test chambers. Among the 8 different spiked sediments, the logarithm of sediment/porewater distribution coefficient values (log Kd ) for Ni during the toxicity tests ranged from 3.5 to 4.5. These Kd values closely match the range of values reported for various field Ni-contaminated sediments, indicating that testing conditions with our spiked sediments were environmentally realistic. © 2013 SETAC.

  18. Fabrication and integrity test preparation of HIP-joined W and ferritic-martensitic steel mockups for fusion reactor development

    International Nuclear Information System (INIS)

    Lee, Dong Won; Shin, Kyu In; Kim, Suk Kwon; Jin, Hyung Gon; Lee, Eo Hwak; Yoon, Jae Sung; Choi, Bo Guen; Moon, Se Youn; Hong, Bong Guen

    2014-01-01

    Tungsten (W) and ferritic-martensitic steel (FMS) as armor and structural materials, respectively, are the major candidates for plasma-facing components (PFCs) such as the blanket first wall (BFW) and the divertor, in a fusion reactor. In the present study, three W/FMS mockups were successfully fabricated using a hot isostatic pressing (HIP, 900 .deg. C, 100 MPa, 1.5 hrs) with a following post-HIP heat treatment (PHHT, tempering, 750 .deg. C, 70 MPa, 2 hrs), and the W/FMS joining method was developed based on the ITER BFW and the test blanket module (TBM) development project from 2004 to the present. Using a 10-MHz-frequency flat-type probe to ultrasonically test of the joint, we found no defects in the fabricated mockups. For confirmation of the joint integrity, a high heat flux test will be performed up to the thermal lifetime of the mockup under the proper test conditions. These conditions were determined through a preliminary analysis with conventional codes such as ANSYS-CFX for thermal-hydraulic conditions considering the test facility, the Korea heat load test facility with an electron beam (KoHLT-EB), and its water coolant system at the Korea Atomic Energy Research Institute (KAERI)

  19. Fabrication and integrity test preparation of HIP-joined W and ferritic-martensitic steel mockups for fusion reactor development

    Science.gov (United States)

    Lee, Dong Won; Shin, Kyu In; Kim, Suk Kwon; Jin, Hyung Gon; Lee, Eo Hwak; Yoon, Jae Sung; Choi, Bo Guen; Moon, Se Youn; Hong, Bong Guen

    2014-10-01

    Tungsten (W) and ferritic-martensitic steel (FMS) as armor and structural materials, respectively, are the major candidates for plasma-facing components (PFCs) such as the blanket first wall (BFW) and the divertor, in a fusion reactor. In the present study, three W/FMS mockups were successfully fabricated using a hot isostatic pressing (HIP, 900 °C, 100 MPa, 1.5 hrs) with a following post-HIP heat treatment (PHHT, tempering, 750 °C, 70 MPa, 2 hrs), and the W/FMS joining method was developed based on the ITER BFW and the test blanket module (TBM) development project from 2004 to the present. Using a 10-MHz-frequency flat-type probe to ultrasonically test of the joint, we found no defects in the fabricated mockups. For confirmation of the joint integrity, a high heat flux test will be performed up to the thermal lifetime of the mockup under the proper test conditions. These conditions were determined through a preliminary analysis with conventional codes such as ANSYS-CFX for thermal-hydraulic conditions considering the test facility, the Korea heat load test facility with an electron beam (KoHLT-EB), and its water coolant system at the Korea Atomic Energy Research Institute (KAERI).

  20. Transformational Leadership Style as Predictor of Decision Making Styles: Moderating Role of Emotional Intelligence

    Directory of Open Access Journals (Sweden)

    Rana Rashid Rehman

    2012-12-01

    Full Text Available The current study examines the relationship among transformational leadership style and decision making styles. It also determines the moderating role of emotional intelligence in predicting this relationship. Three hypotheses are generated for the study i.e., twohypotheses are to measure the relationship among transformational leadership style and decision making styles whereas third hypothesis is to assess the moderating effect of emotional intelligence. Questionnaire method is used to collect data from 113respondents. Regression analysis is utilized to study the relationship among transformational leadership style and decision making styles and step-wise regression analysis is used to study moderating effect of emotional intelligence. The study foundthat transformational leadership style strongly predicts rational and dependant decision making styles and weakly predict intuitive and spontaneous decision making styles while no association founds with avoidant decision making styles. Present research also foundthat emotional intelligence moderates the relationship among transformational leadership style and decision making styles.

  1. The Comparison of Healthy and Unhealthy Perfectionism and Type A Personality in The Perceived Parenting Styles in University Students

    Directory of Open Access Journals (Sweden)

    مریم جهان بخش

    2016-02-01

    Full Text Available The purpose of the present research is to study healthy and unhealthy perfectionism as well as type A personality based on different parenting styles. With a ex-post-facto method, a sample of undergraduate students at Shahid Beheshti University was selected through random multistage cluster sampling with at least 80 students in every parenting style. This sample consists of 407 students: 235 girls and 172 boys. The subjects completed three questionnaires of perceived parenting style, positive and negative perfectionism scale and type A personality. The collected data was analyzed by statistical tests MANOVA and ANOVA and Scheffe post hoc test. Results indicated that healthy perfectionism in the authoritative parenting style is more and in negligent parenting style is lower than the other parenting styles. The unhealthy perfectionism of the boys was more than girls. The interactive effect of the two variables namely parenting styles and gender upon healthy perfectionism was significant. Healthy­ perfectionism in authoritative parenting style in girls was more than boys and in permissive parenting style healthy perfectionism in boys was more than girls. The general effect of parenting styles and general effect of gender in score of type A personality did not show significant difference; however, the interactive effect of parenting styles and gender upon type A personality was supported. Here in permissive parenting style the type A personality in boys is higher than girls and in authoritarian parenting style the type A personality in girls is higher than boys. Conclusion: Due to the crucial role of parents' parenting styles in creating healthy and unhealthy perfectionism and also due to interactive effect of parenting style and gender on the healthy perfectionism and type A personality, educating parents on parenting styles and also giving instruction to the families for raising healthy persons in the society is a high priority.

  2. Food-related life style: Development of a cross-culturally valid instrument for market surveillance

    DEFF Research Database (Denmark)

    Grunert, Klaus G.; Brunsø, Karen; Bisp, Søren

    1993-01-01

    an important input to a food producer's strategy formation. 2. Life style measurement has been widely used in marketing, namely for guiding advertising strategy, segmentation, and product development. Life style is potentially a valuable tool for market surveillance. 3. Life style studies as they are currently...... done in market research have been criticized on several grounds: they lack a theoretical foundation, they lack cross-cultural validity, their ability to predict behaviour is limited, and the derivation of so-called basic life style dimensions is unclear. 4. We propose an instrument called food......-related life style has five components: higher-order attributes of food products, consequences of using food products, shopping scripts, meal preparation scripts, and usage situations. 6. An exploratory study carried out in Denmark, France, and England led to the identification of 21 cross-culturally valid...

  3. [Relationship between self-directed learning with learning styles and strategies in medical students].

    Science.gov (United States)

    Márquez U, Carolina; Fasce H, Eduardo; Pérez V, Cristhian; Ortega B, Javiera; Parra P, Paula; Ortiz M, Liliana; Matus B, Olga; Ibáñez G, Pilar

    2014-11-01

    Self-directed learning (SDL) skills are particularly important in medical education, considering that physicians should be able to regulate their own learning experiences. To evaluate the relationship between learning styles and strategies and self-directed learning in medical students. One hundred ninety nine first year medical students (120 males) participated in the study. Preparation for Independent Learning (EPAI) scale was used to assess self-direction. Schmeck learning strategies scale and Honey and Alonso (CHAEA) scales were used to evaluate learning styles and strategies. Theoretical learning style and deep processing learning strategy had positive correlations with self-direct learning. Medical students with theoretical styles and low retention of facts are those with greater ability to self-direct their learning. Further studies are required to determine the relationship between learning styles and strategies with SDL in medical students. The acquired knowledge will allow the adjustment of teaching strategies to encourage SDL.

  4. Learning styles favoured by professional, amateur, and recreational athletes in different sports.

    Science.gov (United States)

    González-Haro, Carlos; Calleja-González, Julio; Escanero, Jesus F

    2010-06-01

    The aim of this study was to characterize the learning styles of different groups of athletes grouped according to level of performance and sport. Seventy-one male athletes completed a questionnaire on learning styles at the beginning of the 2008-2009 training season. Learning styles were assessed using the Honey-Alonso Learning Styles Questionnaire, and were also converted into learning styles described by Kolb. The Honey-Alonso learning styles were compared among the various groups using one-way analysis of variance, and the Kolb learning styles that were most favoured using a chi-square test. Pearson's correlation coefficient was used to verify the relationships between variables. No significant differences were observed in learning styles between different sports and physical activities. Years of experience did not correlate strongly with learning styles. With respect to level of performance, the pragmatic component was significantly lower in professional athletes than amateur and recreational athletes. These characteristics of learning styles preferred by the athletes should help coaches and physical trainers to reflect on their role as educators in the context of planning sports training.

  5. Child Development Knowledge and Teacher Preparation: Confronting Assumptions.

    Science.gov (United States)

    Katz, Lilian G.

    This paper questions the widely held assumption that acquiring knowledge of child development is an essential part of teacher preparation and teaching competence, especially among teachers of young children. After discussing the influence of culture, parenting style, and teaching style on developmental expectations and outcomes, the paper asserts…

  6. Dentist-assistant interaction styles in Jordan.

    Science.gov (United States)

    Khader, Y S; Abu-Sharbain, G

    2009-05-01

    To assess dentist-assistant interaction and communication styles and their associated factors in Jordan. Three different areas in Amman where private dental clinics heavily cluster were chosen. The researcher visited all dental clinics in these areas and invited dentists to participate in this study. A structured self-administered questionnaire was designed and included the 22 items on staff communication that were used by Gorter and Freeman to assess communication styles. The culturally adapted items were analysed in such a way to reflect the structure that is used in the original study. There was a significant interaction between dentist's gender and communication styles (F = 3.8, P = 0.022). The only significant difference between men and women was for professional leadership style (P = 0.011) where men were more likely to adopt professional leadership style than women. For men, the average score for friendly leadership style was significantly lower than that for other styles. For women, the average score was the highest for gender interacting style which was significantly higher than that for friendly leadership style and professional interacting style, but not business leadership style. Communication and interaction styles between Jordanian dentists and their assistants differ according to gender. Jordanian dentists are less likely to adopt friendly leadership communication style compared with other styles.

  7. Style guidelines to assist authors preparing papers for publication in ...

    African Journals Online (AJOL)

    Chris

    “lowest common denominator”. For instance, in the most recent .... Using the 1991 EA data, the option to aggregate data by centroid to the nearest containing feature resulted in 14.7% of the ... municipal boundaries were used as the common denominator and was the most recent source of municipal boundaries at the onset ...

  8. Flaw preparations for HSST program vessel fracture mechanics testing: mechanical-cyclic pumping and electron-beam weld-hydrogen-charge cracking schemes

    International Nuclear Information System (INIS)

    Holz, P.P.

    1980-06-01

    The purpose of the document is to present schemes for flaw preparations in heavy section steel. The ability of investigators to grow representative sharp cracks of known size, location, and orientation is basic to representative field testing to determine data for potential flaw propagation, fracture behavior, and margin against fracture for high-pressure-, high-temperature-service steel vessels subjected to increasing pressurization and/or thermal shock. Gaging for analytical stress and strain procedures and ultrasonic and acoustic emission instrumentation can then be applied to monitor the vessel during testing and to study crack growth. This report presents flaw preparations for HSST fracture mechanics testing. Cracks were grown by two techniques: (1) a mechanical method wherein a premachined notch was sharpened by pressurization and (2) a method combining electron-beam welds and hydrogen charging to crack the chill zone of a rapidly placed autogenous weld. The mechanical method produces a naturally occurring growth shape controlled primarily by the shape of the machined notch; the welding-electrochemical method produces flaws of uniform depth from the surface of a wall or machined notch. Theories, details, discussions, and procedures are covered for both of the flaw-growing schemes

  9. Preparative expression and purification of a nacreous protein N16 and testing its effect on osteoporosis rat model.

    Science.gov (United States)

    Xu, Zhen-Yan; Liu, Yu-Ling; Lin, Jia-Bi; Cheng, Ke-Ling; Wang, Yong-Gang; Yao, Hong-Liang; Wei-Peng; Wu, Hoi-Yan; Su, Wei-Wei; Shaw, Pang-Chui; Li, Pei-Bo

    2018-05-01

    N16, a nacreous protein isolated from Pinctada martensii, is related to nacreous layer formation. Our previous study indicated that N16 showed dual regulatory effects by inducing osteoblast biomineralization as well as inhibiting osteoclast formation. In order to obtain large quantity of N16 for animal experiment and clinical trial, a fermentation and preparative purification method was established. The N16 cDNA was cloned to a BL21(DE3)plysE-pET32a vector and grown in a 20 L fermenter. The medium, temperature, pH and dissolved oxygen (DO) were optimized. N16 was expressed in inclusion bodies. It was denatured and refolded in 8 M urea buffer and purified to 97% purity by passing through a gel filtration column. The glucocorticoid induced osteoporosis (GIO) rat model was used to investigate the anti-osteoporosis activity of N16 in vivo. Results showed that the decrease of the bone mineral density (BMD) and the ultimate load was significantly relieved after N16 treatment. N16 displayed dual regulatory effects by promoting osteogenesis as well as inhibiting bone resorption in vivo. Our work will contribute to further clinical studies on N16 for osteoporosis treatment. Copyright © 2018 Elsevier B.V. All rights reserved.

  10. THE CHEMICAL COMPOSITION AND VARIOUS SAMPLES PREPARATION METHODS FOR In Vitro GAS TEST OF TWO TROPICAL FEEDS

    Directory of Open Access Journals (Sweden)

    J. Daryatmo

    2015-04-01

    Full Text Available A 3x2 factorial experimental design was conducted to evaluate the chemical composition ofSesbania grandiflora (SG and Manihot esculenta Crantz (MEC leaves and to measure the effects ofpreparation and drying methods on the in vitro gas production in the presence and absence of PEG. Thecollected samples were divided into three groups: One group was fresh samples (F. The second groupwas oven-dried at 55°C for 48h (OD and the last group was freeze-dried at –40°C for 72h (FD. Resultsshowed that the mean value of gas production from fresh SG and MEC samples were not significantlyhigher (P<0.05 than from FD and OD samples. In SG and MEC, the mean value of gas production ofFD was not significant compared to OD samples (P>0.05. Gas production from samples added withPEG were higher (P<0.05 than without PEG. In conclusion, the preparation and drying methods of feedsamples could affect the volume of gas production. The addition of PEG in SG and MEC resulted inhigher gas production volumes.

  11. Preliminary Sensorimotor and Cardiovascular Results from the Joint Russian/U.S. Pilot Field Test in Preparation for the Full Field Test

    Science.gov (United States)

    Reschke, M. F.; Kozlovskaya, I. B.; Tomilovskaya, E. S.; Bloomberg, J. J.; Platts, S. H.; Rukavishnikov, I. V.; Fomina, E. V.; Stenger, M. B.; Lee, S. M. C.; Wood, S. J.; hide

    2014-01-01

    Ongoing collaborative research efforts between NASA's Neuroscience and Cardiovascular Laboratories, and the Institute of Biomedical Problems' (IBMP) Sensory-Motor and Countermeasures Laboratories have been measuring functional sensorimotor, cardiovascular and strength responses following bed rest, dry immersion, short-duration (Space Shuttle) and long-duration (Mir and International Space Station [ISS]) space flights. While the unloading paradigms associated with dry immersion and bed rest does serve as acceptable flight analogs, testing of crew responses following the long-duration flights previously has not been possible until a minimum of 24 hours after landing. As a result, it is not possible to estimate the nonlinear trend of the early (the full impact of the decrements associated with long-duration flight. To overcome these limitations, both the Russian and U.S. programs have implemented testing at the landing site. By joint agreement, this research effort has been identified as the functional Field Test (FT). For practical reasons the FT has been divided into two phases: the full FT and a preliminary pilot version (PFT) of the FT that is reduced in both length and scope. The primary goal of this research is to determine functional abilities in long-duration space-flight crews beginning as soon after landing as possible (one to three immediate follow-up measurements on the day of landing. This goal has both sensorimotor and cardiovascular elements, including evaluations of NASA's new anti-orthostatic compression garment and the Russian Kentavr garment. Functional sensorimotor measurements will include, but are not limited to, assessing hand/eye coordination, egressing from a seated position, walking normally without falling, measuring of dynamic visual acuity, discriminating different forces generated with both the hands and legs, recovering from a fall, coordinated walking involving tandem heel-to-toe placement, and determining postural ataxia while standing

  12. Influences of deep learning, need for cognition and preparation time on open- and closed-book test performance

    NARCIS (Netherlands)

    Heijne-Penninga, Marjolein; Kuks, Jan B. M.; Hofman, W. H. Adriaan; Cohen-Schotanus, Janke

    Objectives The ability to master discipline-specific knowledge is one of the competencies medical students must acquire. In this context, 'mastering' means being able to recall and apply knowledge. A way to assess this competency is to use both open- and closed-book tests. Student performance on

  13. Novel sample preparation methods and field testing procedures used to determine the chemical basis of cocaine detection by canines

    Science.gov (United States)

    Furton, Kenneth G.; Hsu, Ya-Li; Luo, Tien-Ying; Alvarez, Nayiby; Lagos, Pedro

    1997-02-01

    The use of canines to signal money associated with drug trafficking is a major point of contention among dog handlers, forensic scientists, and the legal community particularly in light of recent reports that a significant amount of money in circulation is contaminated with detectable amounts of cocaine. The questions raised include: What exactly are the dogs alerting to? How selective are the dogs? How sensitive are the dogs? How reliable are the dogs? Tests with various volatile cocaine by-products confirm that the dominant chemical in cocaine odor is methyl benzoate. Field tests on fifteen different drug detector dogs with varying breeds, ages and training regimes show a consistent threshold level of 1 (mu) g of methyl benzoate spiked along with cocaine on U.S. currency required to initiate an alert. The majority of the canines did not alert to pharmaceutical grade cocaine even at levels as high as 1 g. Methyl benzoate is shown to evaporate rapidly from individual bills and is a function of the available surface area for wrapped currency. The canines tested were remarkably selective and reliable even under varying test conditions and using different delivery devices.

  14. Interlaboratory comparison of the determination of 137Cs and 90Sr in water, food and soil: preparation and characterization of test materials

    International Nuclear Information System (INIS)

    Fuks, L.; Polkowska-Motrenko, H.

    2006-01-01

    Only reliable analytical results can serve as a basis of meaningful evaluation and protection of the environment against radioactive contaminants. So, laboratories dealing with the environmental radioactivity determinations should regularly demonstrate their ability to produce acceptable results. Since 2002, every two years organization of national interlaboratory comparisons (ILC) on the determination of different radionuclides in food and environmental samples is required by the Polish law. The aim of the paper is presentation how test materials applied in the Institute of Nuclear Chemistry and Technology (INCT, Warsaw, Poland) for the 2004 ILC on the determination of 137 Cs and 90 Sr in water, food and soil were prepared. (author)

  15. Preparation, characterization and in vitro testing of poly(lactic-co-glycolic) acid/barium titanate nanoparticle composites for enhanced cellular proliferation.

    Science.gov (United States)

    Ciofani, Gianni; Ricotti, Leonardo; Mattoli, Virgilio

    2011-04-01

    The recent advancements in tissue engineering and, more in general, in cell-based applications, has led to an ever increasing interest toward new materials for sustained cell proliferation and differentiation. Here, the preparation and the characterization of scaffolds based on poly(lactic-co-glycolic) acid / barium titanate nanoparticle composites are presented. In vitro testing on H9C2 cell line demonstrates how the presence of the nanoparticles positively affects both the proliferation and the differentiation of this muscle-like cell line. Finally, the possibility to obtain porous scaffold and, therefore, an actual 3D culture system, is introduced.

  16. Identity processing styles and language proficiency among Persian learners of English as a foreign language.

    Science.gov (United States)

    Razmjoo, Seyyed Ayatollah; Neissi, Sina

    2010-12-01

    The relationship between identity processing styles and language proficiency in English as foreign language (EFL) was investigated among the Persian EFL learners. 266 Persian candidates taking part in a Ph.D. examination at Shiraz University took part. The Language Proficiency Test was used to measure language proficiency in English. The Identity Styles Inventory was used to measure normative, informational, and diffuse-avoidant identity processing styles. Relationships between normative and informational styles and language proficiency and its subscales (grammar, vocabulary, and reading) were positive and significant. Negative relationships between diffuse-avoidant style and language proficiency and its subscales (grammar, vocabulary, and reading) were observed. There were significant sex differences for diffuse-avoidant style and for vocabulary.

  17. Predictive Power of Parenting Styles on Children’s Social Skills

    Directory of Open Access Journals (Sweden)

    Daniel Bartholomeu

    2016-04-01

    Full Text Available The aim of this study was to investigate the relationship between parenting styles and children’s social skills, establishing significant correlations between those two constructs. A total of 202 children, 7 to 10 years old, male and female, attending second to fourth year of government schools in São Paulo, Brazil, were participants of this research. They collectively completed Children’s Social Skills Test (THAS-C and Parental Styles Inventory (IEP. Results suggest that positive parental styles are predictors of altruism, while negative parental styles are predictors of assertiveness, conversation, and social confidence. Regarding general social skills, variables that offered the best probable model were positive monitoring, lax discipline, moral behavior, and physical abuse (the higher the general social skill, the lesser the abusive parenting styles. As a conclusion, it seems that different social skills are related to positive and negative parenting styles, reinforcing the idea of a social skill as an attribute of behavior.

  18. Mathematical thinking styles of undergraduate students and their achievement in mathematics

    Science.gov (United States)

    Risnanosanti

    2017-08-01

    The main purpose of this study is to analyze the role of mathematical thinking styles in students' achievement in mathematics. On the basis of this study, it is also to generate recommendation for classroom instruction. The two specific aims are; first to observe students' mathematical thinking styles during problem solving, the second to asses students' achievement in mathematics. The data were collected by using Mathematical Thinking Styles questionnaires and test of students' achievement in mathematics. The subject in this study was 35 students from third year at mathematics study program of Muhammadiyah University of Bengkulu in academic year 2016/2017. The result of this study was that the students have three mathematical thinking styles (analytic, visual, and integrated), and the students who have analytic styles have better achievement than those who have visual styles in mathematics.

  19. Evidence-Based Higher Education - Is the Learning Styles 'Myth' Important?

    Science.gov (United States)

    Newton, Philip M; Miah, Mahallad

    2017-01-01

    The basic idea behind the use of 'Learning Styles' is that learners can be categorized into one or more 'styles' (e.g., Visual, Auditory, Converger) and that teaching students according to their style will result in improved learning. This idea has been repeatedly tested and there is currently no evidence to support it. Despite this, belief in the use of Learning Styles appears to be widespread amongst schoolteachers and persists in the research literature. This mismatch between evidence and practice has provoked controversy, and some have labeled Learning Styles a 'myth.' In this study, we used a survey of academics in UK Higher Education ( n = 114) to try and go beyond the controversy by quantifying belief and, crucially, actual use of Learning Styles. We also attempted to understand how academics view the potential harms associated with the use of Learning Styles. We found that general belief in the use of Learning Styles was high (58%), but lower than in similar previous studies, continuing an overall downward trend in recent years. Critically the percentage of respondents who reported actually using Learning Styles (33%) was much lower than those who reported believing in their use. Far more reported using a number of techniques that are demonstrably evidence-based. Academics agreed with all the posited weaknesses and harms of Learning Styles theory, agreeing most strongly that the basic theory of Learning Styles is conceptually flawed. However, a substantial number of participants (32%) stated that they would continue to use Learning Styles despite being presented with the lack of an evidence base to support them, suggesting that 'debunking' Learning Styles may not be effective. We argue that the interests of all may be better served by promoting evidence-based approaches to Higher Education.

  20. Safety assessment of botanicals and botanical preparations used as ingredients in food supplements: testing an European Food Safety Authority-tiered approach.

    Science.gov (United States)

    Speijers, Gerrit; Bottex, Bernard; Dusemund, Birgit; Lugasi, Andrea; Tóth, Jaroslav; Amberg-Müller, Judith; Galli, Corrado L; Silano, Vittorio; Rietjens, Ivonne M C M

    2010-02-01

    This article describes results obtained by testing the European Food Safety Authority-tiered guidance approach for safety assessment of botanicals and botanical preparations intended for use in food supplements. Main conclusions emerging are as follows. (i) Botanical ingredients must be identified by their scientific (binomial) name, in most cases down to the subspecies level or lower. (ii) Adequate characterization and description of the botanical parts and preparation methodology used is needed. Safety of a botanical ingredient cannot be assumed only relying on the long-term safe use of other preparations of the same botanical. (iii) Because of possible adulterations, misclassifications, replacements or falsifications, and restorations, establishment of adequate quality control is necessary. (iv) The strength of the evidence underlying concerns over a botanical ingredient should be included in the safety assessment. (v) The matrix effect should be taken into account in the safety assessment on a case-by-case basis. (vi) Adequate data and methods for appropriate exposure assessment are often missing. (vii) Safety regulations concerning toxic contaminants have to be complied with. The application of the guidance approach can result in the conclusion that safety can be presumed, that the botanical ingredient is of safety concern, or that further data are needed to assess safety.

  1. Learning style preferences of undergraduate nursing students.

    Science.gov (United States)

    Rassool, Goolam Hussein; Rawaf, Salman

    To determine the predominant learning style preferences of undergraduate nursing students. A demographic questionnaire and Honey and Mumford's (2000a) learning styles questionnaire were administered to a purposive sample of 136 students. A response rate of 81% (110) was obtained. The results are congruent with U.K. studies, which show that the reflector is the preferred learning style of undergraduate nursing students. A 'dual' learning style category was also identified. A mismatch between teaching style and the learning styles of students has been found to have serious consequences. A variety of modes of teaching and learning should be used to meet the learning needs of students.

  2. Characterization of microflora in Latin-style cheeses by next-generation sequencing technology

    Directory of Open Access Journals (Sweden)

    Lusk Tina S

    2012-11-01

    Full Text Available Abstract Background Cheese contamination can occur at numerous stages in the manufacturing process including the use of improperly pasteurized or raw milk. Of concern is the potential contamination by Listeria monocytogenes and other pathogenic bacteria that find the high moisture levels and moderate pH of popular Latin-style cheeses like queso fresco a hospitable environment. In the investigation of a foodborne outbreak, samples typically undergo enrichment in broth for 24 hours followed by selective agar plating to isolate bacterial colonies for confirmatory testing. The broth enrichment step may also enable background microflora to proliferate, which can confound subsequent analysis if not inhibited by effective broth or agar additives. We used 16S rRNA gene sequencing to provide a preliminary survey of bacterial species associated with three brands of Latin-style cheeses after 24-hour broth enrichment. Results Brand A showed a greater diversity than the other two cheese brands (Brands B and C at nearly every taxonomic level except phylum. Brand B showed the least diversity and was dominated by a single bacterial taxon, Exiguobacterium, not previously reported in cheese. This genus was also found in Brand C, although Lactococcus was prominent, an expected finding since this bacteria belongs to the group of lactic acid bacteria (LAB commonly found in fermented foods. Conclusions The contrasting diversity observed in Latin-style cheese was surprising, demonstrating that despite similarity of cheese type, raw materials and cheese making conditions appear to play a critical role in the microflora composition of the final product. The high bacterial diversity associated with Brand A suggests it may have been prepared with raw materials of high bacterial diversity or influenced by the ecology of the processing environment. Additionally, the presence of Exiguobacterium in high proportions (96% in Brand B and, to a lesser extent, Brand C (46%, may

  3. Leadership styles and its relationship with subordinates' self-esteem

    Directory of Open Access Journals (Sweden)

    Sudabeh Morshedian Rafiee

    2012-10-01

    Full Text Available Leadership plays an essential role in managing different organizations. These days, different organizations attempt to resolve any existing conflicts through adapting an appropriate leadership strategy. During the past few years, there are increasing interests in examining the relationship between management style and self-esteem. The proposed study of this paper performs an empirical study to find the relationship between leadership style and self-esteem. The proposed study distributed a questionnaire among 80 managers and 150 regular employees of an organization in Iran. We have used Pearson correlation test, t-student and Freedman tests to verify the relationship between leadership style and self-esteem. The investigation of this survey considers four groups of leadership style including autocratic-charity, autocratic-exploitation, management consulting and participative and their effects on self-esteem. The results of our survey indicate that there is a positive and strong relationship between participative leadership management style and self-esteem. The results also indicate that there is strong relationship between educational background and self-esteem.

  4. Working memory and cognitive styles in adolescents' attainment.

    Science.gov (United States)

    Packiam Alloway, Tracy; Banner, Gloria E; Smith, Patrick

    2010-12-01

    Working memory, the ability to store and process information, is strongly related to learning outcomes. The aim of the present study is to extend previous research on early learning and investigate the relationship between working memory, cognitive styles, and attainment in adolescents using both national curriculum tests and teacher-based assessments. A group of 164 13-year-olds from a school in England were recruited. They took tests of working memory and cognitive styles. The school provided the attainment scores. Working memory was found to be the predictor of learning outcomes in English, Maths, and Science, as well as all teacher assessments. There was also a significant interplay between working memory, styles, and attainment. For students with high working memory, their style preference does not impact attainment. Students most at risk were analytics with low working memory as they performed worse in the most subjects. The findings suggest that the interplay between working memory and cognitive styles can be useful in developing suitable interventions to support students.

  5. Modeling Leadership Styles in Human-Robot Team Dynamics

    Science.gov (United States)

    Cruz, Gerardo E.

    2005-01-01

    The recent proliferation of robotic systems in our society has placed questions regarding interaction between humans and intelligent machines at the forefront of robotics research. In response, our research attempts to understand the context in which particular types of interaction optimize efficiency in tasks undertaken by human-robot teams. It is our conjecture that applying previous research results regarding leadership paradigms in human organizations will lead us to a greater understanding of the human-robot interaction space. In doing so, we adapt four leadership styles prevalent in human organizations to human-robot teams. By noting which leadership style is more appropriately suited to what situation, as given by previous research, a mapping is created between the adapted leadership styles and human-robot interaction scenarios-a mapping which will presumably maximize efficiency in task completion for a human-robot team. In this research we test this mapping with two adapted leadership styles: directive and transactional. For testing, we have taken a virtual 3D interface and integrated it with a genetic algorithm for use in &le-operation of a physical robot. By developing team efficiency metrics, we can determine whether this mapping indeed prescribes interaction styles that will maximize efficiency in the teleoperation of a robot.

  6. Learning styles of students of Baqiyatallah University of Medical Sciences in 2012

    Directory of Open Access Journals (Sweden)

    Hojat Rashidi-jahan

    2013-06-01

    Full Text Available Introduction: Understanding the learning styles of students may help educational planning and improve the learning. This study aims to assess learning styles, and relevant determinants, of students who study in various disciplines of medical sciences at Baqiyatallah University of Medical Sciences (BUMS in 2012. Methods: In this cross-sectional study, 180 students from BUMS were selected randomly. Data were collected sing the Kolb learning style questionnaire during April/May 2012. One-way ANOVA, Student t-test, Chi-square or Fisher exact tests were used for analyzing the data. Results: The mean age of participants was 29.3±7.0, majority of them were males. The preferred learning styles were diverger (76.7%, accommodator (12.8%, assimilator (7.8% and converger (2.8% respectively. The results showed that the factors such as age, sex, marriage status, father and mother education, grade point average (GPA and academic degree could be important to determine learning style characteristics of students. The findings also indicate that the preferred learning style among the students with different GPAs or academic degrees are not different considerably. Conclusion: Regarding the most preferred leaning style by the, proper planning to address proper teaching styles according to the preferred learning styles is necessary.

  7. Influence of parenting styles on development of children aged three to six years old.

    Science.gov (United States)

    Nanthamongkolchai, Sutham; Ngaosusit, Chutima; Munsawaengsub, Chokchai

    2007-05-01

    To investigate the influences of parenting styles on development of children aged three to six years. A cross-sectional study was conducted in 360 children and their parents selected by multi-stage random sampling. The data were collected from July 24th to August 31st, 2004. The Denver II test kit and the scale by Baumrind D were used to test the child development and parenting styles respectively. A questionnaire was used to collect the family and child factors. Data were analyzed by frequency distribution and Multiple logistic regression with the significant level set at p-value of Parenting styles had significant influences on child development (p-value parenting style had a 1.9 times higher chance of having delayed development compared with those with democratic parenting style. In addition, significant family and child factors for explaining child development were family type, mother's education, father's occupation, relationship within the family, nutritional status and sex. Parenting styles had a significant influence on child development. The children raised with mixed parenting style had a 1.9 timds higher chance of having delayed development compared to those whose parents used democratic parenting style. Therefore, the parents should rear their children by using the democratic parenting style that leads to the age-appropriate development child

  8. Individual Learning Style and the Learning Style Inventory.

    Science.gov (United States)

    Heffler, Bo

    2001-01-01

    Focuses on the experience learning theory (ELT) that views learning as a process, explaining that it entails a four-stage process that includes four learning modes. Presents the results of a study that used the learning style inventory (LSI) that examines one's approach to learning situations. Includes references. (CMK)

  9. Learning Styles and Teaching Styles in College English Teaching

    Science.gov (United States)

    Zhou, Mai

    2011-01-01

    Students preferentially take in and process information in different ways: by seeing and hearing, reflecting and acting, reasoning logically and intuitively, analyzing and visualizing. Teaching methods also should vary accordingly. How much a student can learn is also determined by the compatibility of the student's learning styles and the…

  10. Learning style impact on knowledge gains in human patient simulation.

    Science.gov (United States)

    Shinnick, Mary Ann; Woo, Mary A

    2015-01-01

    Human patient simulation (HPS) is a widely used method of teaching in nursing education. While it is believed that a student's learning style impacts knowledge gains in HPS, there is little evidence to support this. This study sought to determine the impact of learning style on knowledge gains after a heart failure (HF) simulation experience in pre-licensure nursing students. A convenience sample of four cohorts of prelicensure nursing students (n=161) were recruited from three Baccalaureate Schools of Nursing at the same point in their curriculum (age 25.7±6.6 years; gender=85.5% female) and participated in HPS using a HF simulation on a high-fidelity manikin. Learning style was assessed by the Kolb Learning Style Inventory (LSI) and pre- and post-HPS knowledge measured by parallel, validated, knowledge tests. The LSI identifies 4 learning styles, (Assimilating Diverging, Accommodating, and Converging). In some cases, learners present a balanced learning profile-an emphasis of all four equally. Statistical analysis consisted of t-tests and ANOVA. HF knowledge scores post-HPS compared to pre-HPS scores revealed a mean improvement of 7 points (plearning. Within group score increases between the pre-test and post-test were seen for the Assimilating (66.68±20.87 to 83.35±12.59; p=0.07), Diverging (61.95±11.08 to 69.86±12.33; pteaching methodology for nursing students identifying with most types of learning styles. Copyright © 2014 Elsevier Ltd. All rights reserved.

  11. Effect of molecular weight and testing rate on adhesion property of pressure-sensitive adhesives prepared from epoxidized natural rubber

    International Nuclear Information System (INIS)

    Khan, Imran; Poh, B.T.

    2011-01-01

    Research highlights: → Elucidation of adhesion property of epoxidized natural rubber (ENR 25). → Correlation of peel and shear strength with molecular weight and rate of testing. → Confirmation of miscibility of tackifier and ENR 25 by DSC and FTIR study. → Applicability of Fox equation in ENR 25/coumarone-indene resin system. -- Abstract: The dependence of peel strength and shear strength of epoxidized natural rubber (ENR 25)-based pressure-sensitive adhesive on molecular weight and rate of testing was investigated using coumarone-indene as the tackifying resin. Toluene and polyethylene terephthalate (PET) were used as the solvent and substrate respectively throughout the study. A SHEEN hand coater was used to coat the adhesive on the substrate at a coating thickness of 120 μm. All the adhesion properties were determined by a Llyod Adhesion Tester operating at different rates of testing. Result shows that peel strength and shear strength increases up to an optimum molecular weight of 6.5 x 10 4 of ENR 25. For peel strength, the observation is attributed to the combined effects of wettability and mechanical strength of rubber at the optimum molecular weight, whereas for the shear strength, it is ascribed to the increasing amount of adhesive present in the coating layer which enhances the shear resistance of the adhesive. Peel strength and shear strength also increases with increase in rate of testing, an observation which is associated to the viscoeslastic response of the adhesive. Differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FTIR) study confirms the miscibility of tackifier and the ENR 25.

  12. The effects of field dependent/independent style awareness on learning strategies and outcomes in an instructional hypermedia module

    Science.gov (United States)

    Fyle, Clifford Omodele

    The purpose of this study was to examine whether field-dependent/independent style awareness affects learning outcomes and learning strategies used in a hypermedia instructional module. Field-dependent/independent style was measured using the Global Embedded Figures Test. Style awareness meant that students were provided with information and explanations about their individual cognitive styles and the learning strategies that accommodate those styles. The study entailed examining students' achievement in a multiple-choice test and performance in a design task, and also their navigation patterns as they studied a science-oriented Webquest. The sample consisted of 149 eighth-grade students in 10 sections of a science class taught by two teachers in a public middle school. A two-group posttest-only design on one factor (style awareness) was used. Sixty-eight students in five sections of the class were assigned to the treatment group (field dependent/independent style awareness) while the other 81 students in five sections were assigned to the control group (no field dependent/independent style awareness). The study took place over a period of 6 days. On the first day, students in the treatment group were first tested and debriefed on their individual styles. Next, all students in both the treatment and control groups studied the hypermedia instructional module (Webquest) over a period of two days. On the fourth and fifth days students worked on the performance tasks, and on the sixth day students took the multiple-choice test and students in the control group were tested and debriefed on their individual styles. The findings indicate that style awareness significantly influenced the learning strategies of field-dependent students as they studied and carried out learning tasks in the Webquest. Field-dependent students with style awareness used hypertext links and navigated the menu sequentially a greater number of times than their counterparts with no style awareness

  13. Recovery Efficiency Test Project: Phase 1, Activity report. Volume 1: Site selection, drill plan preparation, drilling, logging, and coring operations

    Energy Technology Data Exchange (ETDEWEB)

    Overbey, W.K. Jr.; Carden, R.S.; Kirr, J.N.

    1987-04-01

    The recovery Efficiency Test well project addressed a number of technical issues. The primary objective was to determine the increased efficiency gas recovery of a long horizontal wellbore over that of a vertical wellbore and, more specifically, what improvements can be expected from inducing multiple hydraulic fractures from such a wellbore. BDM corporation located, planned, and drilled a long radius turn horizontal well in the Devonian shale Lower Huron section in Wayne County, West Virginia, demonstrating that state-of-the-art technology is capable of drilling such wells. BDM successfully tested drilling, coring, and logging in a horizontal well using air as the circulating medium; conducted reservoir modeling studies to protect flow rates and reserves in advance of drilling operations; observed two phase flow conditions in the wellbore not observed previously; cored a fracture zone which produced gas; observed that fractures in the core and the wellbore were not systematically spaced (varied from 5 to 68 feet in different parts of the wellbore); observed that highest gas show rates reported by the mud logger corresponded to zone with lowest fracture spacing (five feet) or high fracture frequency. Four and one-half inch casting was successfully installed in the borehole and was equipped to isolate the horizontal section into eight (8) zones for future testing and stimulation operations. 6 refs., 48 figs., 10 tabs.

  14. Relationship between Learning Style and Academic Status of Babol Dental Students

    Science.gov (United States)

    Nasiri, Zahra; Gharekhani, Samane; Ghasempour, Maryam

    2016-01-01

    Introduction Identifying and employing students’ learning styles could play an important role in selecting appropriate teaching methods in order to improve education. The aim of this study was to determine the relationship between the students’ final exam scores and the learning style preferences of dental students at Babol University of Medical Sciences. Methods This cross-sectional study was conducted on 88 dental students studying in their fourth, fifth, and sixth years using the visual–aural–reading/writing–kinesthetic (VARK) learning styles’ questionnaire. The data were analyzed with IBM SPSS, version 21, using the chi-squared test and the t-test. Results Of the 88 participants who responded to the questionnaire, 87 preferred multimodal learning styles. There was no significant difference between the mean of the final exam scores in students who did and did not prefer the aural learning style (p = 0.86), the reading/writing learning style (p = 0.20), and the kinesthetic learning style (p = 0.32). In addition, there was no significant difference between the scores on the final clinical course among the students who had different preferences for learning style. However, there was a significant difference between the mean of the final exam scores in students with and without visual learning style preference (p = 0.03), with the former having higher mean scores. There was no significant relationship between preferred learning styles and gender (p > 0.05). Conclusion The majority of dental students preferred multimodal learning styles, and there was a significant difference between the mean of the final exam scores for students with and without a preference for the visual learning style. In addition, there were no differences in the preferred learning styles between male and female students. PMID:27382442

  15. Education catching up with science: preparing students for three-dimensional literacy in cell biology.

    Science.gov (United States)

    Kramer, Ijsbrand M; Dahmani, Hassen-Reda; Delouche, Pamina; Bidabe, Marissa; Schneeberger, Patricia

    2012-01-01

    The large number of experimentally determined molecular structures has led to the development of a new semiotic system in the life sciences, with increasing use of accurate molecular representations. To determine how this change impacts students' learning, we incorporated image tests into our introductory cell biology course. Groups of students used a single text dealing with signal transduction, which was supplemented with images made in one of three iconographic styles. Typically, we employed realistic renderings, using computer-generated Protein Data Bank (PDB) structures; realistic-schematic renderings, using shapes inspired by PDB structures; or schematic renderings, using simple geometric shapes to represent cellular components. The control group received a list of keywords. When students were asked to draw and describe the process in their own style and to reply to multiple-choice questions, the three iconographic approaches equally improved the overall outcome of the tests (relative to keywords). Students found the three approaches equally useful but, when asked to select a preferred style, they largely favored a realistic-schematic style. When students were asked to annotate "raw" realistic images, both keywords and schematic representations failed to prepare them for this task. We conclude that supplementary images facilitate the comprehension process and despite their visual clutter, realistic representations do not hinder learning in an introductory course.

  16. Thinking styles of university deaf or hard of hearing students and hearing students.

    Science.gov (United States)

    Cheng, Sanyin; Hu, Xiaozhong; Sin, Kuen Fung

    2016-08-01

    Although their university enrollment has increased dramatically over the past two decades, deaf or hard of hearing (DHH) students face great challenges and a tremendous environmental adjustment when entering a mainstream university. This study aims to facilitate DHH students' university success through exploring differences in thinking styles between DHH and hearing students from Art and Design academic disciplines in two universities in China. The Thinking Styles Inventory-Revised II (TSI-R2) and its accommodated version were administered to 286 hearing and 256 DHH students, respectively. A demographic sheet was administered to all 542 participants. Results show that DHH students tended to score significantly lower on Type I thinking styles (legislative and global), Type II executive style, and Type III external style than hearing students. In addition, differences in Type I styles (liberal and hierarchical) and Type II executive style between DHH and hearing students were significantly influenced by institution. The present research indicates that DHH and hearing students have significant differences in their thinking styles. This yields implications for the higher education of DHH students, and for deaf schools preparing DHH students for university entry. Copyright © 2016 Elsevier Ltd. All rights reserved.

  17. The Relationship between Leadership Styles and the Ethical Leadership Behaviors of Public School Administrators

    Science.gov (United States)

    Nkadi, Francisca M.

    2013-01-01

    Ethical leadership plays a major role in school administration while transactional and transformational leadership styles have been known to be effective in an organizational setting. However, the latter styles have also been linked to unethical behavior. The research problem for this study tested the possibility that transactional and…

  18. The Impact of Learning Styles on Achievement in Principles of Microeconomics: A Natural Experiment

    Science.gov (United States)

    Terregrossa, Ralph; Englander, Fred; Englander, Valerie

    2009-01-01

    This study investigates how a natural experiment occurring in the teaching of principles of microeconomics allows a test of the Dunn and Dunn learning styles model (Dunn & Griggs, 2000). The material for the first exam, based on essential definitions and theoretical foundations, was taught in a conventional, inductive style, more compatible with…

  19. Seeking Information with an Information Visualization System: A Study of Cognitive Styles

    Science.gov (United States)

    Yuan, Xiaojun; Zhang, Xiangman; Chen, Chaomei; Avery, Joshua M.

    2011-01-01

    Introduction: This study investigated the effect of cognitive styles on users' information-seeking task performance using a knowledge domain information visualization system called CiteSpace. Method: Sixteen graduate students participated in a user experiment. Each completed an extended cognitive style analysis wholistic-analytic test (the…

  20. An Assessment of Decision-Making Styles/Processes of Consumer Education Students.

    Science.gov (United States)

    Bertelson, Catherine L.

    1986-01-01

    Reports on a study to determine the decision-making processes and styles used by consumer education students when confronted with a consumer credit problem. Tests were administered to 27 secondary students. Findings revealed that gender determines to a great extent the process and style used. (Author/CH)

  1. Vocabulary Breadth and Field Dependence/Independence Cognitive Styles

    Directory of Open Access Journals (Sweden)

    Nassim Golaghaei

    2011-07-01

    Full Text Available This article is primarily bidirectional in that it is concerned with two fields of cognitive styles of field-dependency/independency on one hand and breadth of vocabulary knowledge on the other hand. In other word, this research is primarily intended to investigate the nature of the students' vocabulary knowledge in the field of passive and active knowledge of L2 words as a whole with regard to their preferred cognitive style of field dependency/independency. A group of 60 undergraduate students majoring in the field of English Language Teaching was selected. They were then divided into two groups based on the basis of their preferred cognitive styles of field-dependency / independency. Four types of tests, the 1000 frequency word-level test, the passive version of vocabulary Levels Test, the Productive Version of the Vocabulary Levels Test, and the Group Imbedded Figures Test were administered to the participants. The conclusion drawn after the analysis of the data was that the fieldindependent group outperformed their field-dependent counterparts in dealing with both passive and productive vocabulary levels. Finally, the findings of this research could be interpreted as being supportive of the idea that the field-dependent/independent cognitive style could be considered as an effective factor influencing the learners' vocabulary learning in the field of second language acquisition.

  2. Financial Preparation for Retirement in Brazil: a Cross-Cultural Test of the Interdisciplinary Financial Planning Model.

    Science.gov (United States)

    França, Lucia H F; Hershey, Douglas A

    2018-03-01

    In this investigation, we attempt to replicate the Interdisciplinary Financial Planning Model advanced by Hershey et al. (International Journal of Aging and Human Development, 70, 1-38, 2010) using a sample of Brazilian adults. This model, which was originally tested on individuals from The Netherlands and the United States, posits that psychological, social, and economic forces are key determinants of retirement planning practices and perceptions of saving adequacy. Taken together, fifteen hypotheses were subject to evaluation. Participants were 167 Brazilian working adults, 21-69 years of age, who were married or cohabitating at the time of testing. A path analysis model showed substantial support for the theoretical framework, with all variables found to contribute directly or indirectly to the prediction of financial planning and saving adequacy. Furthermore, two new paths were found to emerge in the Brazilian model that were not observed in the original investigation. This cross-national replication of the Interdisciplinary Financial Planning Model extends research on the topic to a developing country in which relatively few empirical studies of retirement planning have been carried out. Other analyses in the article focus on direct comparisons between the Brazilian model and the models developed based on American and Dutch respondents, with an eye toward better understanding how cultural forces shape the retirement planning process. The discussion focuses on how models of financial planning, such as the Hershey et al. (2010) model, can inform the development of savings-oriented education and intervention programs.

  3. Leadership styles, emotion regulation, and burnout.

    Science.gov (United States)

    Arnold, Kara A; Connelly, Catherine E; Walsh, Megan M; Martin Ginis, Kathleen A

    2015-10-01

    This study investigated the potential impact of leadership style on leaders' emotional regulation strategies and burnout. Drawing on the full-range model of leadership and Conservation of Resources (COR) theory, we tested whether transformational, contingent reward, management by exception-active and -passive, or laissez-faire leadership exert direct effects on leaders' reported use of surface acting, deep acting, and genuine emotion. In turn, we hypothesized and tested the indirect effect of leadership on burnout through surface acting. Three waves of data from 205 leaders were analyzed using OLS regression. Transformational leadership predicted deep acting and genuine emotion. Contingent reward predicted both surface and deep acting. Management by exception-active and -passive predicted surface acting, and laissez faire predicted genuine emotion. The indirect effects of management by exception-active and -passive on burnout through surface acting were not significant. Indirect effects of transformational leadership and laissez-faire on burnout through genuine emotion, however, were significant. This study provides empirical evidence for the hypothesized relationships between leadership style, emotion regulation, and burnout, and provides the basis for future research and theory building on this topic. (c) 2015 APA, all rights reserved).

  4. Improving Technical Instruction Using Personality Styles.

    Science.gov (United States)

    Tomal, Daniel R.

    2003-01-01

    Incorporating personality styles into technical instruction can enhance student learning. Four personality styles based on Jung--intuitor, feeler, thinker, and doer--have implications for individualizing technical instruction. (JOW)

  5. Francis Bacon and the Technology of Style.

    Science.gov (United States)

    Baker, Christopher

    1983-01-01

    Examines Francis Bacon's intentionally devised style for scientific writings and the theoretical basis of that style. Discusses his emphasis on a truly objective point of view, and his use of aphorisms to adapt to his audience. (HTH)

  6. Cognitive Style in Relation to Various Disciplines.

    Science.gov (United States)

    Saracho, Olivia, Ed.

    1998-01-01

    The 11 chapters of this theme issue explore important issues that relate cognitive style to educational concerns. They link cognitive style with reading comprehension, parental teaching, family qualities, teaching, distance learning, strategic learning, socialization, and athletic performance. (SLD)

  7. Synchronizing Web Documents with Style

    NARCIS (Netherlands)

    R.L. Guimarães (Rodrigo); D.C.A. Bulterman (Dick); P.S. Cesar Garcia (Pablo Santiago); A.J. Jansen (Jack)

    2014-01-01

    htmlabstractIn this paper we report on our efforts to define a set of document extensions to Cascading Style Sheets (CSS) that allow for structured timing and synchronization of elements within a Web page. Our work considers the scenario in which the temporal structure can be decoupled from the

  8. Individual Learning Styles and Creativity

    Science.gov (United States)

    Sitar, Aleša Saša; Cerne, Matej; Aleksic, Darija; Mihelic, Katarina Katja

    2016-01-01

    Business schools are in need of developing creative graduates. This article explores how creativity among business students can be stimulated. Because a considerable amount of knowledge is required for creative ideas to emerge, the learning process has a significant impact on creativity. This, in turn, indicates that learning style is important…

  9. Cognitive Performance and Cognitive Style.

    Science.gov (United States)

    International Journal of Behavioral Development, 1985

    1985-01-01

    Investigates (1) the relationships between cognitive performance and cognitive styles and predictive possibilities and (2) performance differences by sex, school, grade, and income in 92 Indian adolescents. Assessment measures included Liquid Conservation, Islands, Goat-Lion, Hanoi-Tower, Rabbits (Piagetian); Block Design (WISC-R); Paper Cutting…

  10. Management Styles and Techniques: Machines.

    Science.gov (United States)

    Steffen, Susan Swords

    1987-01-01

    Describes the management approach used to introduce new technologies in an academic library and the success of this approach. The management of change is discussed in terms of communication between management and personnel; management style; development of a system; staff development; and sensitivity to staff reactions and needs. (CLB)

  11. Reconsidering Styles of Regulatory Enforcement

    DEFF Research Database (Denmark)

    May, Peter J.; Winter, Søren

    2000-01-01

    This study addresses enforcement styles of regulatory inspectors, based on an examination of the municipal enforcement of agro-environmental policies in Denmark. Our findings make three contributions to the regulatory literature. One contribution is to add empirical support for theorizing about...

  12. Cognitive styles and visual quality

    Science.gov (United States)

    Jumisko-Pyykkö, Satu; Strohmeier, Dominik

    2013-03-01

    Assessors are the main measurement instruments in subjective quality evaluation studies. Although the perceptual abilities and constrains are influenced by multiple demographic and psychographic factors, they are typically disregarded as a part of quality assessment. Cognitive styles refer to individual's consistent approaches to organize and represent information. Goal of this study is to explore the impact of cognitive styles on visual quality requirements. The data collection is conducted using the Style of Processing (SOP) questionnaire in three video quality experiments with a total of 72 participants. All participants were categorized into four groups according to sensorial preferences in information processing (visual, verbal, bimodal - high processing, and bimodal - low processing). The experiments were conducted in controlled circumstances when varying depth in video quality with several content types on the mobile device. The results show variation in quality requirements between these groups. Finally, these results also indicate that sensorial processing styles are essential to explore for sample characterization in quality evaluation experiments and for exploring more user-aware quality adjustments in future services and products.

  13. Leisure Styles and Adult Education

    Science.gov (United States)

    London, Jack; Wenkert, Robert

    1969-01-01

    People with broad and diverse leisure activities are more likely to participate in adult education than people with a passive leisure style. This finding conflicts with a prevailing view that adult education competes with other leisure pursuits for the interest and attention of a potential audience. (SE)

  14. Analysis of first-trimester combined test results in preparation for a cell-free fetal DNA era.

    Science.gov (United States)

    Kose, Semir; Cımrın, Dilek; Yıldırım, Nuri; Aksel, Ozge; Keskinoglu, Pembe; Bora, Elcin; Cankaya, Tufan; Altunyurt, Sabahattin

    2016-11-01

    To survey experience with the first-trimester combined test (FCT) for trisomy 21 (T21) in different risk score groups to determine the most useful clinical application of cell-free fetal DNA (cffDNA) screening. In a retrospective study, the records of FCT results obtained at a center in Turkey between January 2009 and January 2014 were reviewed. The FCT results and rates of uptake of invasive diagnostic testing were compared among different risk score groups. FCT results were available for 4804 pregnancies; 276 (5.7%) had IDT results. Ten (72.7%) of 11 cases of T21 had a risk score of 1:300 or more. The IDT uptake rates were 54.5%, 51.9%, and 47.4% at risk scores of 1:100 or more, 1:200 or more, and 1:300 or more, respectively. In the group at intermediate risk (1:1001-1:3000), no pregnancy had an FCT result of both low pregnancy-associated plasma protein A and high free β-human chorionic gonadotropin, but 30 (3.9%) of 766 pregnancies had both advanced maternal age and high β-human chorionic gonadotropin. cffDNA screening should be used to optimize IDT uptake in pregnancies with a risk score of 1:101-1:1000. The selective power of the FCT diminishes beyond the 1:1001 score and cffDNA screening cannot yet be recommended routinely. Copyright © 2016 International Federation of Gynecology and Obstetrics. Published by Elsevier Ireland Ltd. All rights reserved.

  15. The Relationship between Decision Making Styles and Leadership Styles among Public Schools Principals

    Science.gov (United States)

    Al-Omari, Aieman Ahmad

    2013-01-01

    The present study examined the relationships between leadership styles and decision-making styles among public schools principals. A total of 108 principals returned questionnaires from Russaifa Education District in Jordan. The Decision Style Inventory and the Administrative Styles Questionnaire were used in this study. "Directive decision…

  16. Assessing Experiential Learning Styles: A Methodological Reconstruction and Validation of the Kolb Learning Style Inventory

    Science.gov (United States)

    Manolis, Chris; Burns, David J.; Assudani, Rashmi; Chinta, Ravi

    2013-01-01

    To understand experiential learning, many have reiterated the need to be able to identify students' learning styles. Kolb's Learning Style Model is the most widely accepted learning style model and has received a substantial amount of empirical support. Kolb's Learning Style Inventory (LSI), although one of the most widely utilized instruments to…

  17. The Teacher Relationship Behaviour and Parenting Style Correlates ...

    African Journals Online (AJOL)

    In this research, students' perceptions and report on the relationship behaviour of their English teacher, and the parenting styles practiced by their parents are tested to know if they significantly correlate to the students' scholastic achievements of the English language at grade seven level. And the aim of this research is to ...

  18. Working Memory and Cognitive Styles in Adolescents' Attainment

    Science.gov (United States)

    Packiam Alloway, Tracy; Banner, Gloria E.; Smith, Patrick

    2010-01-01

    Background: Working memory, the ability to store and process information, is strongly related to learning outcomes. Aims: The aim of the present study is to extend previous research on early learning and investigate the relationship between working memory, cognitive styles, and attainment in adolescents using both national curriculum tests and…

  19. Leadership Style and Job Commitment of Library Personnel in ...

    African Journals Online (AJOL)

    The main purpose of this study is to examine the relationship between leadership style and job commitment of library personnel in private universities in the Southwest, Nigeria. The research instrument used in the collection of data was questionnaire. In measuring the research questions and testing hypotheses, mean and ...

  20. Parenting Style and Adolescents' School Performance in Mainland China

    Science.gov (United States)

    Kang, Yanrong; Moore, Joyce

    2011-01-01

    Parenting style, as a widely studied topic, has been used by researchers and educators in the US to predict students' academic achievements. Despite its theoretical and practical significance, no much work has been conducted to test the generalizability of parenting research framed in the Western culture to the Chinese population. Parenting styles…

  1. Adult Attachment and Developmental Personality Styles: An Empirical Study

    Science.gov (United States)

    Sherry, Alissa; Lyddon, William J.; Henson, Robin K.

    2007-01-01

    The current study was designed to test specific hypotheses associated with W. J. Lyddon and A. Sherry's (2001) attachment theory model of developmental personality styles. More specifically, 4 adult attachment dimensions were correlated with 10 personality scales on the Millon Clinical Multiaxial Inventory-III (T. Millon, R. Davis, & C.…

  2. Influence of Cognitive Styles on Students' Achievements in Biology ...

    African Journals Online (AJOL)

    The study investigated the influence of Cognitive styles on students' achievements in biology in senior secondary schools in Anambra State. One research question and one null hypothesis tested at 0.05 level of significance guided the study. A causal comparative design and a population of 10,206 (SSII) biology students in ...

  3. Web-Based Learning: Cognitive Styles and Instructional Strategies

    Science.gov (United States)

    Alomyan, Hesham Raji

    2016-01-01

    This paper reports a study, which investigated whether different instructional strategies might interact with individual's cognitive style in learning. A web-based learning package was designed employing three strategies, Interactive Concept Maps, Illustration with Embedded Text and Text-Only. Group Embedded Figure Test was administered to 178…

  4. Influence of Gender and Cognitive Styles on Students' Achievement ...

    African Journals Online (AJOL)

    The study investigated the influence of gender and cognitive styles on students' achievement in biology in senior secondary schools in Anambra State. One research question and one null hypothesis tested at 0.05 level of significance guided the study. A causal comparative research design and a population of 12,000 (SSII) ...

  5. Parenting Styles, Coping Strategies, and the Expression of Homesickness

    Science.gov (United States)

    Nijhof, Karin S.; Engels, Rutger C. M. E.

    2007-01-01

    The present study examined the role of parenting styles in the experience and expression of homesickness, and the way of coping with the feelings involved. Using a sample of 670 first year college and university students, aged 16 to 25, we tested three hypotheses: (1) authoritarian, permissive as well as uninvolved parenting are associated with…

  6. Stress and neurobiology of coping styles

    Directory of Open Access Journals (Sweden)

    Vsevolod V. Nemets

    2017-06-01

    Full Text Available In stressful environment, animal can use different coping strategies. Passive animals manifest freezing behaviour at predator attacks, active ones are trying to have an impact on a stressful situation. Each coping style is presupposed to have a neurobiological basis and it helps animals to survive in aggressive and mutable environment. Being under a long lasting stress, leaders can be affected by cardiovascular and ulcer diseases, but a short term impact can cheer them up, improve neuroendocrine stress response more than passive coping style in animals. This paper analyzes animal pattern of coping behaviour, their inheritance based on gender, social status and age. The research shows how anxiety affects social behaviour of people individuals and typological reactions were compared. These patterns can be used by people in a situation of uncontrolled stress to prevent diseases and depressive disorders through altering one’s type of behavior to the one which is more effective. In addition, knowledge of behavioural types can assist teachers in implementing the learning process as in stress situations (e.g. taking exams, working on course papers, doing tests not all students are able to effectively perceive and present the resulting material. On the other hand, active students could encourage short-term rather than long-term stressor irritation. It is necessary to pay special attention to students with low social economic status who display active response to stress. According to statistics, problem students often become aggressors and commit antisocial and sometimes criminal acts. The coping styles mentioned here above are not polar, there are no clear boundaries of personality. In addition, behaving according to the active / non-active type is identified by customary and inherited behaviour patterns.

  7. The Relationship between Job Satisfaction with Burnout and Conflict Management Styles in Employees

    Directory of Open Access Journals (Sweden)

    Mohammad-Hossein Safi

    2016-06-01

    Full Text Available Background and Objective: The organizations are obligated to take sufficient attention to human resources in order to attain greater efficiency and ultimately achieve their goals. Considering the importance of desirable behavior in organizations and its impact on the attitudes and perceptions of employees, it is necessary to pay special attention to the treatment of staff and their needs. The present study was prepared to investigate the relationship between job satisfaction and conflict management styles and job burnout among health care employees in north Tehran.Materials and Methods: The study was done descriptive-analytical among employees with at least 6 months of experience and with a sample size of 224 patients at the health center. Data collection tools consisted job satisfaction, job burnout and conflict management questionnaires. SPSS software was used for data analysis and Pearson's correlation coefficient and T-test was used for independent groups.Results: The result indicates positive and significant relationship between job satisfactions with solution-oriented styles, job satisfaction has a negative and significant relationship with control strategy. Non confrontational strategy has not significant relationship with job satisfaction. Also, all of the components of job burnout (emotional exhaustion, depersonalization, and reduced personal accomplishment have a significant negative correlation with job satisfaction, and solution-oriented strategy has a negative significant correlation with emotional exhaustion.Conclusion: According to the correlation of job satisfaction with burnout, control strategy and solution-oriented styles, managers can use efficient methods such as pay and benefits commensurate with ability and experience, training and professional improvement, freedom of action, the division of labor based on merit and ability, etc. affect their behavior and increase their efficiency and effectiveness in order to further the

  8. MANAGER PRINCIPLES AS BASIS OF MANAGEMENT STYLE TRANSFORMATION

    Directory of Open Access Journals (Sweden)

    R. A. Kopytov

    2011-01-01

    Full Text Available The paper considers an approach which is based on non-conventional mechanisms of management style formation. The preset level of sustainable management is maintained by self-organized environment created in the process of management style transformation in efficient management principles. Their efficiency is checked within an adaptive algorithm. The algorithm is developed on the basis of combination of evaluative tools  and base of operational  proves. The operating algorithm capability is tested within the framework of an operating enterprise. The obtained results testify about  formation of sustainable business.

  9. Exploring Differences in Leadership Styles in Romanian Software Development Industry

    Directory of Open Access Journals (Sweden)

    Sofia DAVID

    2013-12-01

    Full Text Available Leadership style is considered an important factor that influences the firm perfomance. The aim of the present paper is to explore the correlations between the gender and management level of the managers, considered as independent variables, and the managers leadership styles as dependent variables. The study was based on an empirical research undertaken on a representative sample of 80 managers from different hierarchical levels in Romanian software development companies. The research methodology involved a design of two hypotheses, tested by means of Pearson chi-square. The research results emphasize a cultural specific context and some suggestions for future research are provided.

  10. Market and Style Timing: German Equity and Bond Funds

    OpenAIRE

    Hayley, S.; Nitzsche, D.; Cuthbertson, K.

    2016-01-01

    We apply parametric and non-parametric estimates to test market and style timing ability of individual German equity and bond mutual funds using a sample of over 500 equity and 350 bond funds, over the period 1990-2009. For equity funds, both approaches indicate no successful market timers in the 1990-1999 or 2000-2009 periods, but in 2000-2009 the non-parametric approach gives fewer unsuccessful market timers than the parametric approach. There is evidence of successful style timing using th...

  11. Key characteristics of different management styles

    OpenAIRE

    AGADZHANYAN A.S.

    2015-01-01

    The article reveals main management styles practiсed by managers all over the world. The author considers key characteristics of management styles, conditions of their using. The paper analyzes cultural differences in management styles in the West and in the East.

  12. Social Styles and Heterosexual Pair Relationships.

    Science.gov (United States)

    Schroder, Keith H.

    1981-01-01

    Studied satisfaction in couple relationships as related to social style. Social style considers the pattern of relationships in an individual's social network as partly the expression of personal needs and gratification patterns. Research confirmed the hypothesis that similarity in social style is closely associated with reported satisfaction.…

  13. LIFE-STYLE SEGMENTATION WITH TAILORED INTERVIEWING

    NARCIS (Netherlands)

    KAMAKURA, WA; WEDEL, M

    The authors present a tailored interviewing procedure for life-style segmentation. The procedure assumes that a life-style measurement instrument has been designed. A classification of a sample of consumers into life-style segments is obtained using a latent-class model. With these segments, the

  14. Temperament Styles of Greek and US Children

    Science.gov (United States)

    Oakland, Thomas; Hatzichristou, Chryse

    2010-01-01

    Age, gender and cross-national differences of children ages 8 through 16 in Greece (n = 400) and the United States (n = 5,400) are examined on four temperament styles: extroversion-introversion, practical-imaginative, thinking-feeling and organized-flexible styles. In general, Greek children prefer extroverted to introverted styles and organized…

  15. Thinking Styles of Teachers, Principals, and Inspectors

    Science.gov (United States)

    Bastug, Özlem Yesim Özbek; Çelik, Bünyamin

    2014-01-01

    Much of current studies focus on the investigation of the thinking styles of students and teachers. However, exploring school administrators' and inpectors' thinking styles is also critical for increasing students' achievement at school. For that purpose, this study was performed to determine the thinking styles of teachers, principals, and…

  16. Presenting in Style by Virtual Humans

    NARCIS (Netherlands)

    Ruttkay, Z.M.; Esposito, A.

    2007-01-01

    The paper addresses the issue of making Virtual Humans unique and typical of some (social or ethnical) group, by endowing them with style. First a conceptual framework of defining style is discussed, identifying how style is manifested in speech and nonverbal communication. Then the GESTYLE language

  17. South Carolina Superintendents' Change Style Preferences

    Science.gov (United States)

    Melton, Annette Ghent; Cox, Edward P.

    2010-01-01

    Little is known about the change style preferences of superintendents, and how they differ from school principals and from business leaders and whether a superintendent's change-style preference affects student achievement. The purpose of this study was to explore the change-style preferences of South Carolina superintendents, compare them with…

  18. An Intelligent System for Determining Learning Style

    Science.gov (United States)

    Ozdemir, Ali; Alaybeyoglu, Aysegul; Mulayim, Naciye; Uysal, Muhammed

    2018-01-01

    In this study, an intelligent system which determines learning style of the students is developed to increase success in effective and easy learning. The importance of the proposed software system is to determine convenience degree of the student's learning style. Personal information form and Dunn Learning Style Preference Survey are used to…

  19. Predicting coping styles in adolescence following trauma

    DEFF Research Database (Denmark)

    Christiansen, Dorte Mølgaard; Hansen, Maj; Elklit, Ask

    2013-01-01

    , there is a lack of research investigating the interplay between these individual characteristics and their combined effect on different coping styles. It is of special importance to identify maladaptive coping styles in adolescents because they may be prone to use these coping styles for the rest of their lives...

  20. Surgery resident learning styles and academic achievement.

    Science.gov (United States)

    Contessa, Jack; Ciardiello, Kenneth A; Perlman, Stacie

    2005-01-01

    To determine if surgical residents share a preferred learning style as measured by Kolb's Learning Style Inventory (LSI) and if a relationship exists between resident learning style and achievement as measured by a standardized examination (AME). Also, core faculty learning styles were assessed to determine if faculty and residents share a preferred learning style. Kolb's LSI, Version 3, was administered to 16 surgical residents and the residency program's core faculty of 6 attending physicians. To measure academic achievement, the American Medical Education (AME) examination was administered to residents. The Hospital of Saint Raphael, General Surgery Residency Program, New Haven, Connecticut. Both instruments were administered to residents during protected core curriculum time. Core faculty were administered the LSI on an individual basis. Surgical residents of the Hospital of Saint Raphael's General Surgery Residency Program and 6 core faculty members Analysis of resident learning style preference revealed Converging as the most commonly occurring style for residents (7) followed by Accommodating (5), Assimilating (3), and Diverging (1). The predominant learning style for core faculty was also Converging (4) with 2 Divergers. The average score for the Convergers on the AME was 62.6 compared with 42 for the next most frequently occurring learning style, Accommodators. In this surgical residency program, a preferred learning style for residents seems to exist (Converging), which confirms what previous studies have found. Additionally, residents with this learning style attained a higher average achievement score as measured by the AME. Also, core faculty share the same preferential learning style as this subset of residents.