Positive Aspects of International Student Transitions: A Qualitative Inquiry

Science.gov (United States)

Moores, Lisa; Popadiuk, Natalee

2011-01-01

Despite the considerable growth of the international student population, positive aspects of their experience have received little attention. The current study combines a Critical Incident Technique methodology and a positive psychology lens to explore the cross-cultural transition of seven international students, focusing on facilitative factors,…

Mechanism for Self-Reacted Friction Stir Welding

Science.gov (United States)

Venable, Richard; Bucher, Joseph

2004-01-01

A mechanism has been designed to apply the loads (the stirring and the resection forces and torques) in self-reacted friction stir welding. This mechanism differs somewhat from mechanisms used in conventional friction stir welding, as described below. The tooling needed to apply the large reaction loads in conventional friction stir welding can be complex. Self-reacted friction stir welding has become popular in the solid-state welding community as a means of reducing the complexity of tooling and to reduce costs. The main problems inherent in self-reacted friction stir welding originate in the high stresses encountered by the pin-and-shoulder assembly that produces the weld. The design of the present mechanism solves the problems. The mechanism includes a redesigned pin-and-shoulder assembly. The welding torque is transmitted into the welding pin by a square pin that fits into a square bushing with set-screws. The opposite or back shoulder is held in place by a Woodruff key and high-strength nut on a threaded shaft. The Woodruff key reacts the torque, while the nut reacts the tensile load on the shaft.

Calorimetry of non-reacting systems

CERN Document Server

McCullough, John P

2013-01-01

Experimental Thermodynamics, Volume 1: Calorimetry of Non-Reacting Systems covers the heat capacity determinations for chemical substances in the solid, liquid, solution, and vapor states, at temperatures ranging from near the absolute zero to the highest at which calorimetry is feasible.This book is divided into 14 chapters. The first four chapters provide background information and general principles applicable to all types of calorimetry of non-reacting systems. The remaining 10 chapters deal with specific types of calorimetry. Most of the types of calorimetry treated are developed over a c

Evaluation of School of health students' ethics position in Turkey.

Science.gov (United States)

Şen, Emine; Dal, Nursel Alp; Üstün, Çağatay; Okursoy, Algın

2017-03-01

The advances in science and technology increasingly lead to the appearance of ethical issues and to the complexity of care. Therefore, it is important to define the ethics position of students studying in health departments so that high quality patient care can be achieved. The aim of this study was to examine the ethics position of the students at Shool of Health of an University in western Turkey. The study design was descriptive and cross-sectional. The study population included 540 first, second, third, and fourth year students from the Departments of Nursing, Midwifery, and Rescue and Disaster Management in the 2013-2014 academic year. Data were collected with a Personal Identification Form and The Ethics Position Questionnaire. Obtained data were analyzed with Chi-square test, Confirmatory Factor Analysis, and Nested Analysis of Variance. Ethical considerations: Before conducting the research, approval was obtained from Ege University Clinical Research Ethics Committee in İzmir and written informed consent was taken from all the participants. There was no significant difference in the mean scores for the Ethics Position Questionnaire between the students in terms of years and fields of study. Although the mean scores for the subscale idealism did not differ between fields of study, the mean scores significantly differed between years of study. However, the mean scores for the subscale relativism did not differ in terms of years and fields of study. Whether students are idealistic or relativistic in terms of ethical judgment will be effective in ethical decision-making skills during patient care. Therefore, we need to define the factors that influence students' ethics position in the future. It is suggested that the courses and practices that teach students to be aware of their ethics position to create an ethical outlook can be placed in the curriculum in health schools.

Stress, positive psychology and the National Student Survey

OpenAIRE

Gibbons, Chris

2012-01-01

The aim was to explore the predictive ability of sources of stress and a range of dispositional and coping behaviours on student satisfaction and motivation. Most research exploring sources of stress and coping in students construes stress as psychological distress, with little attempt to consider positive experiences of stress. A questionnaire was administered to 120 first-year UK psychology students. Questions were asked which measured sources of stress when rated as likely to contribute to...

Large-Eddy Simulations of Reacting Liquid Spray

Science.gov (United States)

Lederlin, Thomas; Sanjose, Marlene; Gicquel, Laurent; Cuenot, Benedicte; Pitsch, Heinz; Poinsot, Thierry

2008-11-01

Numerical simulation, which is commonly used in many stages of aero-engine design, still has to demonstrate its predictive capability for two-phase reacting flows. This study is a collaboration between Stanford University and CERFACS to perform LES of a realistic spray combustor installed at ONERA, Toulouse. The experimental configuration is computed on the same unstructured mesh with two different solvers: Stanford's CDP code and CERFACS's AVBP code. CDP uses a low-Mach, variable-density solver with implicit time advancement. Droplets are tracked in a Lagrangian point-particle framework. The combustion model uses a flamelet approach, based on two transported scalars, mixture fraction and reaction progress variable. AVBP is a fully compressible solver with explicit time advancement. The liquid phase is described with an Eulerian method. The flame-turbulence interaction is modeled using a dynamically-thickened flame. Results are compared with experimental data for three regimes: purely gaseous non-reacting flow, non-reacting flow with evaporating droplets, reacting flow with droplets. Both simulations show a good agreement with experimental data and also stress the difference and relative advantages of the numerical methods.

The need analysis of chemistry module based on REACT (relating, experiencing, applying, cooperating and transferring) to improve critical thinking ability

Science.gov (United States)

Tyffani, D. M.; Utomo, S. B.; Rahardjo, S. B.

2018-05-01

This research was aimed to find out how students’ need of chemistry module based REACT (Relating, Experiencing, Applying, Cooperating and Transferring) to improve students’ critical thinking ability. The subjects of this research was the studentsof XI grade in three school in even semester of academic year 2016-2017 that contained of 48 students of Senior High School 2 Bandar Lampung, 38 students of Senior High School 3 Bandar Lampung and 46 students of Senior High School 12 Bandar Lampung. The data was gathering used non-test method by using open questionnaire with 13 questions. The results showed that 84,84% of students stated that the development of chemistry module based REACT on colloid material is needed. The analysis of hand’s book was used aspects of critical thinking proposed by Facione (2011) are interpretation, analysis, evaluation, conclusion, and explanation. Based on the result of the analysis of hand’s book at Senior High School 12 Bandar Lampung for critical thinking in colloid material that indicate 50% indicator is appropriate, while for indicator of inference and explanation only 16,67% appropriate, then for indicator analysis and evaluation doesn’t have conformity. Based on the results of the analysis shows that the hand’s book used have not empowered critical thinking ability with maximum. The development of chemistry module on colloid material is needed to overcome the problem of hand’s book that hasn’t maximized critical thinking ability, then the development of module oriented to REACT learning model (Relating, Experiencing, Applying, Cooperating, and Transferring).

Feasibility and outcomes of paid undergraduate student nurse positions.

Science.gov (United States)

Gamroth, Lucia; Budgen, Claire; Lougheed, Mary

2006-09-01

An Undergraduate Nurse Employment Demonstration Project (UNDP) was implemented in four Health Service Areas in British Columbia with a concurrent evaluation study. This demonstration project comprised the development and implementation of a new position in the BC healthcare system. The position enabled third- and fourth-year nursing students to be employed at their level of education. The purposes of the evaluation were to explore the feasibility and outcomes of this type of paid undergraduate student nurse employment. The three-year project and evaluation included both implementation and outcome analysis. The implementation evaluation design was descriptive and prospective, involving multiple data sources. The outcome evaluation design was quasi-experimental, with intervention and comparison groups. Learning outcomes for undergraduate nurses were increased confidence, organizational ability, competency and ability to work with a team. Workplace outcomes were increased unit morale, help with workload and improved patient care. New graduates with undergraduate nurse experience reported less time required for orientation and transition than other graduates who did not have this experience, and workplace nurses viewed these new graduates as more job-ready than other new graduates. After 21 months, new graduates with undergraduate nurse experience were less likely to move to other employment than other new graduates. Results from the four Health Service Areas indicated that the paid undergraduate nurse position was feasible and that outcomes benefited students, new graduates and workplaces. The undergraduate nurse position is now being implemented throughout all Health Service Areas in British Columbia.By 2000, concerns in British Columbia about the nursing workforce, workplace and patient safety had escalated to the point where diverse stakeholder groups were prepared to work together in new ways to prepare nursing graduates to be more job-ready, to recruit and retain

Students' awareness of science teachers' leadership, attitudes toward science, and positive thinking

Science.gov (United States)

Lu, Ying-Yan; Chen, Hsiang-Ting; Hong, Zuway-R.; Yore, Larry D.

2016-09-01

There appears to be a complex network of cognitive and affective factors that influence students' decisions to study science and motivate their choices to engage in science-oriented careers. This study explored 330 Taiwanese senior high school students' awareness of their science teacher's learning leadership and how it relates to the students' attitudes toward science and positive thinking. Initial results revealed that the optimism of positive thinking is highly and positively correlated with the future participation in science and learning science in school attitudes toward science and self-concept in science. Moreover, structural equation modelling (SEM) results indicated that the subscale of teachers' leadership with idealised influence was the most predictive of students' attitudes toward science (β = .37), and the leadership with laissez-faire was predictive of students' positive thinking (β = .21). In addition, the interview results were consistent with the quantitative findings. The correlation and SEM results indicate some of the associations and potential relationships amongst the motivational and affective factors studied and students' attitudes toward and intentions to study science, which will increase their likelihood of future involvement in science careers.

A growth analysis of teacher qualifications and students' global self-esteem

DEFF Research Database (Denmark)

Kristensen, Rune Müller

2017-01-01

, educational degree and employment status have a minor but significant effect on students’ GSE. Some of these effects differ between boys and girls, showing that boys react positively to teachers with high levels of content knowledge, while girls react positively to teachers with a higher degree of pedagogical...... teacher qualifications in terms of certification, educational degree and employment status affect students’ development in GSE. Effects of teacher qualifications influence on students’ development in GSE over time is modelled using growth curve analysis. Results show that elements in teacher certification......There is an increased focus on students’ non-academic outcomes of schooling and its long-term impact on the adolescents’ later life. Teachers are viewed as the most significant factor in schools for improving student learning and development. Little is known on effects of teacher qualifications...

Bystander Position Taking in School Bullying: The Role of Positive Identity, Self-Efficacy, and Self-Determination

Directory of Open Access Journals (Sweden)

Sandra K. M. Tsang

2011-01-01

Full Text Available School bullying has become an explicit, burgeoning problem challenging the healthy development of children and adolescents in Hong Kong. Many bullying prevention and intervention programs focus on victims and bullies, with bystanders treated as either nonexistent or irrelevant. This paper asserts that bystanders actually play pivotal roles in deciding whether the bullying process and dynamics are benign or adversarial. Bystanders' own abilities and characteristics often influence how they respond to victims and bullies. “P.A.T.H.S. to Adulthood: A Jockey Club Youth Enhancement Scheme” (P.A.T.H.S. = Positive Adolescent Training through Holistic Social Programmes is an evidence-based positive youth development program which shows that primary intervention programs have constructive impacts on junior secondary school students' beliefs and behavior. This paper asserts that intrapsychic qualities, namely identity, self-efficacy, and self-determination, greatly influence how bystanders react in school bullying situations. The paper also explains how classroom-based educational programs based on the P.A.T.H.S. model have been designed to help junior secondary school students strengthen these characteristics, so that they can be constructive bystanders when they encounter school bullying.

Evaluation of a porcine internal mammary artery (No-React II) as a small-diameter conduit

NARCIS (Netherlands)

Ostapczuk, S; Poniewierski, J; Thiel, A; Knieriem, HJ; Orlowski, T; Rakhorst, G; Krian, A

1998-01-01

Background. The patency of biologic small-diameter vascular grafts in the aortocoronary position is still unsatisfactory. Most of the studies suggest that xeno-grafts are to be avoided as an aortocoronary bypass. Methods. The porcine internal mammary artery treated by the No-React II procedure was

Study of transport and micro-structural properties of magnesium di-boride strand under react and bend mode and bend and react mode

International Nuclear Information System (INIS)

Kundu, Ananya; Das, Subrat Kumar; Bano, Anees; Pradhan, Subrata

2015-01-01

I-V characterization of commercial multi-filamentary Magnesium Di-Boride (MgB 2 ) wire of diameter 0.83 mm were studied in cryocooler based self-field characterization system under both react and bent mode and bent and react mode for a range of temperature 6 K - 25 K. This study is of practical technical relevance where the heat treatment of the superconducting wire makes the sample less flexible for winding in magnet and in other applications. There are limited reported data, available on degradation of MgB 2 wire with bending induced strain in react and wind and wind and react method. In the present work the bending diameter were varied from 80 mm to 20 mm in the interval of 10 mm change of bending diameter and for each case critical current (Ic) of the strand is measured for the above range of temperature. An ETP copper made customized sample holder for mounting the MgB 2 strand was fabricated and is thermally anchored to the cooling stage of the cryocooler. It is seen from the experimental data that in react and bent mode the critical current degrades from 105 A to 87 A corresponding to bending diameter of 80 mm and 20 mm respectively. The corresponding bending strain was analytically estimated and compared with the simulation result. It is also observed that in react and bent mode, the degradation of the transport property of the strand is less as compared to react and bent mode. For bent and react mode in the same sample, the critical current (Ic) was measured to be ∼145 A at 15 K for bending diameter of 20 mm. Apart from studying the bending induced strain on MgB 2 strand, the tensile test of the strand at RT was carried out. The electrical characterizations of the samples were accompanied by the microstructure analyses of the bent strand to examine the bending induced degradation in the grain structure of the strand. All these experimental findings are expected to be used as input to fabricate prototype MgB 2 based magnet. (author)

Modern Prejudice and Same-Sex Parenting: Shifting Judgments in Positive and Negative Parenting Situations

OpenAIRE

MASSEY, SEAN G.; MERRIWETHER, ANN M.; GARCIA, JUSTIN R.

2013-01-01

The current study compares the effects of traditional and modern anti-homosexual prejudice on evaluations of parenting practices of same-sex and opposite-sex couples. Undergraduate university student participants (N = 436) completed measures of traditional and modern anti-homosexual prejudice and responded to a vignette describing a restaurant scene in which parents react to their child’s undesirable behavior. The parents’ sexual orientation and the quality of their parenting (positive or neg...

Reacting plasma project at IPP Japan

International Nuclear Information System (INIS)

Miyahara, A.; Momota, H.; Hamada, Y.; Kawamura, K.; Akimune, H.

1981-01-01

Contributed papers of the seminar on burning plasma held at UCLA are collected. Paper on ''overview of reacting plasma project'' described aim and philosophy of R-Project in Japan. Paper on ''Burning plasma and requirements for design'' gave theoretical aspect of reacting plasma physics while paper on ''plasma container, heating and diagnostics'' treated experimental aspect. Tritium handling is essential for the next step experiment; therefore, paper on ''Tritium problems in burning plasma experiments'' took an important part of this seminar. As appendix, paper on ''a new type of D - ion source using Si-semiconductor'' was added because such an advanced R and D work is essential for R-Project. (author)

Who is the competent physics student? A study of students' positions and social interaction in small-group discussions

Science.gov (United States)

Due, Karin

2014-06-01

This article describes a study which explored the social interaction and the reproduction and challenge of gendered discourses in small group discussions in physics. Data for the study consisted of video recordings of eight upper secondary school groups solving physics problems and 15 audiotaped individual interviews with participating students. The analysis was based on gender theory viewing gender both as a process and a discourse. Specifically discursive psychology analysis was used to examine how students position themselves and their peers within discourses of physics and gender. The results of the study reveal how images of physics and of "skilled physics student" were constructed in the context of the interviews. These discourses were reconstructed in the students' discussions and their social interactions within groups. Traditional gendered positions were reconstructed, for example with boys positioned as more competent in physics than girls. These positions were however also resisted and challenged.

Factors associated with positive attitude towards blood donation among medical students.

Science.gov (United States)

Gazibara, Tatjana; Kovacevic, Nikolina; Maric, Gorica; Kurtagic, Ilma; Nurkovic, Selmina; Kisic-Tepavcevic, Darija; Pekmezovic, Tatjana

2015-12-01

The aim of this study was to assess attitudes and practice of blood donation among medical students. Medical students were recruited at Medical Faculty, University of Belgrade, Serbia. Of 973 students, 38.4% of freshmen and 41.4% of final year students have donated blood (χ(2) = 0.918, p = 0.186). Blood donors had significantly more positive attitude towards some aspects of blood donation. Being female, residing in a city other than the capital and previous blood donation experience were independent predictors of positive attitude towards being a blood donor to an unknown person. Efforts are required to augment blood donor pool among future physicians. Copyright © 2015 Elsevier Ltd. All rights reserved.

Cross-reacting and heterospecific monoclonal antibodies produced against arabis mosaic nepovirus.

Science.gov (United States)

Frison, E A; Stace-Smith, R

1992-10-01

Monoclonal antibodies (MAbs) were produced against arabis mosaic nepovirus (AMV). A hybridoma screening procedure was applied which involved the testing of culture supernatants, before the hybridomas were cloned to single cell lines, for their reaction with eight nepoviruses [AMV, cherry leafroll virus (CLRV), grapevine fanleaf virus (GFLV), peach rosette mosaic virus, raspberry ringspot virus (RRSV), tobacco ringspot virus, tomato black ring virus (TBRV) and tomato ringspot virus]. In addition to AMV-specific MAbs, this screening technique has allowed the selection of two cross-reacting MAbs: one reacting with AMV and GFLV, and one reacting with AMV and RRSV. This is the first report of MAbs cross-reacting with these nepoviruses. In addition, five heterospecific MAbs (HS-MAbs) could be selected: two reacting with RRSV, two with CLRV and one with TBRV. The usefulness of the screening technique that was applied for the selection of cross-reacting MAbs and HS-MAbs, and the potential use of such antibodies are discussed.

Student's Second-Language Grade May Depend on Classroom Listening Position.

Science.gov (United States)

Hurtig, Anders; Sörqvist, Patrik; Ljung, Robert; Hygge, Staffan; Rönnberg, Jerker

2016-01-01

The purpose of this experiment was to explore whether listening positions (close or distant location from the sound source) in the classroom, and classroom reverberation, influence students' score on a test for second-language (L2) listening comprehension (i.e., comprehension of English in Swedish speaking participants). The listening comprehension test administered was part of a standardized national test of English used in the Swedish school system. A total of 125 high school pupils, 15 years old, participated. Listening position was manipulated within subjects, classroom reverberation between subjects. The results showed that L2 listening comprehension decreased as distance from the sound source increased. The effect of reverberation was qualified by the participants' baseline L2 proficiency. A shorter reverberation was beneficial to participants with high L2 proficiency, while the opposite pattern was found among the participants with low L2 proficiency. The results indicate that listening comprehension scores-and hence students' grade in English-may depend on students' classroom listening position.

Beginning and experienced secondary school teachers' self- and student schema in positive and problematic teacher-student relationships

NARCIS (Netherlands)

Claessens, Luce|info:eu-repo/dai/nl/357401530; van Tartwijk, Jan|info:eu-repo/dai/nl/112629385; Pennings, Heleen|info:eu-repo/dai/nl/323242588; van der Want, Anna; Verloop, Nico; den Brok, Perry; Wubbels, Theo|info:eu-repo/dai/nl/070651361

2016-01-01

The quality of teacher-student relationships is important for teachers' well-being in schools. In this interview study we investigated which cognitions comprise secondary school teachers' self- and student schema in positive and problematic teacher-student relationships. Frequency analyses of these

Identification of streptococcal proteins reacting with sera from Behçet's disease and rheumatic disorders.

Science.gov (United States)

Cho, Sung Bin; Lee, Ju Hee; Ahn, Keun Jae; Cho, Suhyun; Park, Yong-Beom; Lee, Soo-Kon; Bang, Dongsik; Lee, Kwang Hoon

2010-01-01

We evaluated the reactivity of sera from Behçet's disease (BD), systemic lupus erythematosus (SLE), dermatomyositis (DM), rheumatoid arthritis (RA), and Takayasu's arteritis (TA) patients against human α-enolase and streptococcal α-enolase, and identified additional streptococcal antigens. Enzyme-linked immunosorbent assay (ELISA) and immunoblotting were performed using sera from patients with BD, SLE, DM, RA, and TA and healthy volunteers (control) against human α-enolase and streptococcal α-enolase. Immunoblot analysis and matrix-assisted laser desorption ionisation-time-of-flight mass spectrometry were used to identify and recombine other streptococcal antigens. Specific positive signals against recombinant human α-enolase were detected by IgM ELISA of serum samples from 50% of BD, 14.3% of SLE, 57.1% of DM, 42.9% of RA, and 57.1% of TA patients. Specific positive signals against streptococcal α-enolase were detected from 42.9% of BD, 14.3% of DM, and 14.3% of TA patients. No SLE and RA sera reacted against streptococcal α-enolase antigen. Streptococcal proteins reacting with sera were identified as hypothetical protein (HP) for SLE and DM patients, acid phosphatase (AP) for RA patients, and glyceraldehyde-3-phosphate dehydrogenase (GAPDH) for TA patients. We observed that RA patients did not present serum reactivity against either HP or GAPDH though BD, SLE, DM, and TA patients did. Also, AP reacted with sera from BD, SLE, DM, RA, and TA patients.

Medical students, early general practice placements and positive supervisor experiences.

Science.gov (United States)

Henderson, Margaret; Upham, Susan; King, David; Dick, Marie-Louise; van Driel, Mieke

2018-03-01

Introduction Community-based longitudinal clinical placements for medical students are becoming more common globally. The perspective of supervising clinicians about their experiences and processes involved in maximising these training experiences has received less attention than that of students. Aims This paper explores the general practitioner (GP) supervisor perspective of positive training experiences with medical students undertaking urban community-based, longitudinal clinical placements in the early years of medical training. Methods Year 2 medical students spent a half-day per week in general practice for either 13 or 26 weeks. Transcribed semi-structured interviews from a convenience sample of participating GPs were thematically analysed by two researchers, using a general inductive approach. Results Identified themes related to the attributes of participating persons and organisations: GPs, students, patients, practices and their supporting institution; GPs' perceptions of student development; and triggers enhancing the experience. A model was developed to reflect these themes. Conclusions Training experiences were enhanced for GPs supervising medical students in early longitudinal clinical placements by the synergy of motivated students and keen teachers with support from patients, practice staff and academic institutions. We developed an explanatory model to better understand the mechanism of positive experiences. Understanding the interaction of factors enhancing teaching satisfaction is important for clinical disciplines wishing to maintain sustainable, high quality teaching.

Betwixt and Between: The Social Position and Stress Experiences of Graduate Students

Science.gov (United States)

Grady, Rebecca K.; La Touche, Rachel; Oslawski-Lopez, Jamie; Powers, Alyssa; Simacek, Kristina

2014-01-01

Graduate students occupy social positions within institutions of higher education that are rife with role strain and, relative to broader power relations within these institutions, are marginalized. In this study, we inquire how the social positions and concomitant roles of graduate students shape their mental health experiences, investigating…

Just Rewards: Positive Discipline Can Teach Students Self-Respect and Empathy.

Science.gov (United States)

Shandler, Nina

1996-01-01

Describes a teacher's approach to classroom management through positive discipline, using positive reinforcements to teach children positive behaviors. Students who feel affirmed can begin to believe in themselves and begin to take responsibility and build successful relationships. Five steps to positive discipline are outlined. (SLD)

Fungal decay resistance of wood reacted with phosphorus pentoxide-amine system

Science.gov (United States)

Hong-Lin Lee; George C. Chen; Roger M. Rowell

2004-01-01

Resistance of wood reacted in situ with phosphorus pentoxide-amine to the brown-rot fungus Gloeophyllum trabeum and white-rot fungus Trametes versicolor was examined. Wood reacted with either octyl, tribromo, or nitro derivatives were more resistant to both fungi. Threshold retention values of phosphoramide-reacted wood to white-rot fungus T. versicolor ranged from 2.9...

THE POSITION OF STUDENTS AND TEACHERS IN THE TEADHING OF CONFLICT AS A FACTOR IN COMMUNICATION

Directory of Open Access Journals (Sweden)

Perica Ivanek

2012-09-01

Full Text Available In this empirical paper we consider the problem of communication and interaction between students and teachers in the classroom, looking at it from the aspect of the position of students and teachers in everyday teaching practice. Namely, we wanted to examine the attitudes of students and teachers related to the position of students and teachers on the occurrence of misunderstandings and conflicts in the classroom. The sample on which the study was conducted was made of third grade secondary vocational schools and high schools and their teachers. Dependent variable is descriptive: the position of students and teachers as a factor of conflict in communication between students and teachers, divided in to two groups of indicators (first: indicators that help to prevent conflicts-objective subjective position of students, and other: indicators that initiate the sole objective position of students and subjective position of the teacher. Research results to some extent, we should give a clearer picture of which segments are different perceptions of students and teachers related to the position as a factor in any conflict and misunderstanding in communication between the direct participants in the teaching process.

A Guide for Graduate Students Interested in Postdoctoral Positions in Biology Education Research

Science.gov (United States)

Aikens, Melissa L.; Corwin, Lisa A.; Andrews, Tessa C.; Couch, Brian A.; Eddy, Sarah L.; McDonnell, Lisa; Trujillo, Gloriana

2016-01-01

Postdoctoral positions in biology education research (BER) are becoming increasingly common as the field grows. However, many life science graduate students are unaware of these positions or do not understand what these positions entail or the careers with which they align. In this essay, we use a backward-design approach to inform life science graduate students of postdoctoral opportunities in BER. Beginning with the end in mind, we first discuss the types of careers to which BER postdoctoral positions lead. We then discuss the different types of BER postdoctoral positions, drawing on our own experiences and those of faculty mentors. Finally, we discuss activities in which life science graduate students can engage that will help them gauge whether BER aligns with their research interests and develop skills to be competitive for BER postdoctoral positions. PMID:27856554

The REACT Project

DEFF Research Database (Denmark)

Bloch, Paul; Blystad, Astrid; Byskov, Jens

decisions; and the provision of leadership and the enforcement of conditions. REACT - "REsponse to ACcountable priority setting for Trust in health systems" is an EU-funded five-year intervention study, which started in 2006 testing the application and effects of the AFR approach in one district each...... selected disease and programme interventions and services, within general care and on health systems management. Efforts to improve health sector performance have not yet been satisfactory, and adequate and sustainable improvements in health outcomes have not been shown. Priority setting in health systems...... improvements to health systems performance discussed....

Positive mental health and well-being among a third level student population.

Directory of Open Access Journals (Sweden)

Martin P Davoren

Full Text Available INTRODUCTION: Much research on the health and well-being of third level students is focused on poor mental health leading to a dearth of information on positive mental health and well-being. Recently, the Warwick Edinburgh Mental Well-being scale (WEMWBS was developed as a measurement of positive mental health and well-being. The aim of this research is to investigate the distribution and determinants of positive mental health and well-being in a large, broadly representative sample of third level students using WEMWBS. METHODS: Undergraduate students from one large third level institution were sampled using probability proportional to size sampling. Questionnaires were distributed to students attending lectures in the randomly selected degrees. A total of 2,332 self-completed questionnaires were obtained, yielding a response rate of 51% based on students registered to relevant modules and 84% based on attendance. One-way ANOVAs and multivariate logistic regression were utilised to investigate factors associated with positive mental health and well-being. RESULTS: The sample was predominantly female (62.66%, in first year (46.9% and living in their parents' house (42.4% or in a rented house or flat (40.8%. In multivariate analysis adjusted for age and stratified by gender, no significant differences in WEMWBS score were observed by area of study, alcohol, smoking or drug use. WEMWBS scores were higher among male students with low levels of physical activity (p=0.04. Men and women reporting one or more sexual partners (p<0.001 were also more likely to report above average mental health and well-being. CONCLUSION: This is the first study to examine positive mental health and well-being scores in a third level student sample using WEMWBS. The findings suggest that students with a relatively adverse health and lifestyle profile have higher than average mental health and well-being. To confirm these results, this work needs to be replicated across

Positive mental health and well-being among a third level student population.

LENUS (Irish Health Repository)

Davoren, Martin P

2013-01-01

Much research on the health and well-being of third level students is focused on poor mental health leading to a dearth of information on positive mental health and well-being. Recently, the Warwick Edinburgh Mental Well-being scale (WEMWBS) was developed as a measurement of positive mental health and well-being. The aim of this research is to investigate the distribution and determinants of positive mental health and well-being in a large, broadly representative sample of third level students using WEMWBS.

Intervention for Positive Use of Leisure Time Among College Students

Science.gov (United States)

Yarnal, Careen; Qian, Xinyi; Hustad, John; Sims, Damon

2013-01-01

College student excessive alcohol use is a pressing public health concern, and many of the negative events associated with heavy drinking occur during leisure or free time. Positive use of leisure can lead to coping skills, stress reduction, and healthy development. Negative use of leisure, including heavy alcohol use, is associated with physical inactivity, stress, and short and long-term health concerns. We contend that using the classroom context to help college students understand why it is beneficial to engage in positive leisure pursuits and how that engagement will promote personal growth is of critical importance to healthy development. PMID:24198896

A constitutive theory of reacting electrolyte mixtures

Science.gov (United States)

Costa Reis, Martina; Wang, Yongqi; Bono Maurizio Sacchi Bassi, Adalberto

2013-11-01

A constitutive theory of reacting electrolyte mixtures is formulated. The intermolecular interactions among the constituents of the mixture are accounted for through additional freedom degrees to each constituent of the mixture. Balance equations for polar reacting continuum mixtures are accordingly formulated and a proper set of constitutive equations is derived with basis in the Müller-Liu formulation of the second law of thermodynamics. Moreover, the non-equilibrium and equilibrium responses of the reacting mixture are investigated in detail by emphasizing the inner and reactive structures of the medium. From the balance laws and constitutive relations, the effects of molecular structure of constituents upon the fluid flow are studied. It is also demonstrated that the local thermodynamic equilibrium state can be reached without imposing that the set of independent constitutive variables is time independent, neither spatially homogeneous nor null. The resulting constitutive relations presented throughout this work are of relevance to many practical applications, such as swelling of clays, developing of bio and polymeric membranes, and use of electrorheological fluids in industrial processes. The first author acknowledges financial support from National Counsel of Technological and Scientific Development (CNPq) and German Academic Exchange Service (DAAD).

Evaluating Educational Practices for Positively Affecting Student Perceptions of a Sales Career

Science.gov (United States)

Cummins, Shannon; Peltier, James W.; Pomirleanu, Nadia; Cross, James; Simon, Rob

2015-01-01

Despite demand for new graduates seeking a sales position, student reticence toward pursuing a sales career remains. While all students will not choose a sales career, diminishing the existence of sales-related misconceptions among the student population should establish sales as a viable career path for a larger number of students. We test six…

University Student and Lecturer Perceptions of Positive Emotions in Learning

Science.gov (United States)

Rowe, Anna Dluzewska; Fitness, Julie; Wood, Leigh Norma

2015-01-01

This paper presents results of an investigation exploring the experience and functionality of positive feelings and emotions in learning and teaching. The role of emotions in learning is receiving increasing attention; however, few studies have researched how university students and academics experience and perceive positive emotions. A prototype…

Time as a Measure: Elementary Students Positioning the Hands of an Analog Clock

Directory of Open Access Journals (Sweden)

Darrell Earnest

2018-06-01

Full Text Available Elementary students have difficulty with the topic of time. The present study investigated students’ actions to position hour and minute hands on an analog clock to indicate particular times of the day. Using one-on-one interviews with students in Grades 2 and 4 (n = 48, we analyzed whether students were more accurate for one hand indicator (hour or minute versus the other as well as their solution approaches as they positioned each hand. We first present a quantitative analysis of student performance to document whether hour and minute hands posed differential challenges for students as they positioned hands to indicate particular times. Results indicate the hour hand is significantly more challenging to position accurately than the minute hand. Students’ solutions reflected varied approaches, including consideration of the quantitative hour-minute multiplicative relationship, attention to part-whole relations, and matching numbers from the provided time to numerals on the clock. We discuss implications for theory and instruction, including the relationship of time to length measure learning trajectories and the current treatment of time in K-12 mathematics standards for the United States.

Three-dimensional reacting shock–bubble interaction

NARCIS (Netherlands)

Diegelmann, Felix; Hickel, S.; Adams, Nikolaus A.

2017-01-01

We investigate a reacting shock–bubble interaction through three-dimensional numerical simulations with detailed chemistry. The convex shape of the bubble focuses the shock and generates regions of high pressure and temperature, which are sufficient to ignite the diluted stoichiometric

Emotional stress-reactivity and positive affect among college students: the role of depression history.

Science.gov (United States)

O'Hara, Ross E; Armeli, Stephen; Boynton, Marcella H; Tennen, Howard

2014-02-01

Multiple theories posit that people with a history of depression are at higher risk for a depressive episode than people who have never experienced depression, which may be partly due to differences in stress-reactivity. In addition, both the dynamic model of affect and the broaden-and-build theory suggest that stress and positive affect interact to predict negative affect, but this moderation has never been tested in the context of depression history. The current study used multilevel modeling to examine these issues among 1,549 college students with or without a history of depression. Students completed a 30-day online diary study in which they reported daily their perceived stress, positive affect, and negative affect (including depression, anxiety, and hostility). On days characterized by higher than usual stress, students with a history of depression reported greater decreases in positive affect and greater increases in depressed affect than students with no history. Furthermore, the relations between daily stress and both depressed and anxious affect were moderated by daily positive affect among students with remitted depression. These results indicate that students with a history of depression show greater stress-reactivity even when in remission, which may place them at greater risk for recurrence. These individuals may also benefit more from positive affect on higher stress days despite being less likely to experience positive affect on such days. The current findings have various implications both clinically and for research on stress, mood, and depression. (PsycINFO Database Record (c) 2014 APA, all rights reserved). PsycINFO Database Record (c) 2014 APA, all rights reserved.

Vorticity Dynamics in Single and Multiple Swirling Reacting Jets

Science.gov (United States)

Smith, Travis; Aguilar, Michael; Emerson, Benjamin; Noble, David; Lieuwen, Tim

2015-11-01

This presentation describes an analysis of the unsteady flow structures in two multinozzle swirling jet configurations. This work is motivated by the problem of combustion instabilities in premixed flames, a major concern in the development of modern low NOx combustors. The objective is to compare the unsteady flow structures in these two configurations for two separate geometries and determine how certain parameters, primarily distance between jets, influence the flow dynamics. The analysis aims to differentiate between the flow dynamics of single nozzle and triple nozzle configurations. This study looks at how the vorticity in the shear layers of one reacting swirling jet can affect the dynamics of a nearby similar jet. The distance between the swirling jets is found to have an effect on the flow field in determining where swirling jets merge and on the dynamics upstream of the merging location. Graduate Student, School of Aerospace Engineering, Georgia Institute of Technology, Atlanta, GA.

Characterization of forced response of density stratified reacting wake

Science.gov (United States)

Pawar, Samadhan A.; Sujith, Raman I.; Emerson, Benjamin; Lieuwen, Tim

2018-02-01

The hydrodynamic stability of a reacting wake depends primarily on the density ratio [i.e., ratio of unburnt gas density (ρu) to burnt gas density (ρb)] of the flow across the wake. The variation of the density ratio from high to low value, keeping ρ u / ρ b > 1 , transitions dynamical characteristics of the reacting wake from a linearly globally stable (or convectively unstable) to a globally unstable mode. In this paper, we propose a framework to analyze the effect of harmonic forcing on the deterministic and synchronization characteristics of reacting wakes. Using the recurrence quantification analysis of the forced wake response, we show that the deterministic behaviour of the reacting wake increases as the amplitude of forcing is increased. Furthermore, for different density ratios, we found that the synchronization of the top and bottom branches of the wake with the forcing signal is dependent on whether the mean frequency of the natural oscillations of the wake (fn) is lesser or greater than the frequency of external forcing (ff). We notice that the response of both branches (top and bottom) of the reacting wake to the external forcing is asymmetric and symmetric for the low and high density ratios, respectively. Furthermore, we characterize the phase-locking behaviour between the top and bottom branches of the wake for different values of density ratios. We observe that an increase in the density ratio results in a gradual decrease in the relative phase angle between the top and bottom branches of the wake, which leads to a change in the vortex shedding pattern from a sinuous (anti-phase) to a varicose (in-phase) mode of the oscillations.

Acknowledging and adapting to dietetic students' changing needs.

Science.gov (United States)

Lordly, Daphne; MacLellan, Debbie

2008-01-01

Various societal influences have shaped the way dietetic students view and react to current educational situations. Students' perspectives were sought on conditions that caused stress in the educational environment, what they thought educators did not understand about them, and changes their faculty or preceptors had made to address their needs. Third- and fourth-year university students, interns in their final rotations, and master's degree students completed a questionnaire (n=284). Several stressors were identified: thinking about getting a job as a dietitian, lack of finances or debt, competing for internship positions, the ability to meet program demands, and envisioning the area in which they would specialize. The qualitative analysis highlighted gaps in understanding between students and educators. Gaps concerned student finances, the evaluation process, inflexible undergraduate and internship structures, competition among students, ineffective communication, and finding a balance between academics and other competing interests. A conflict exists between what students expect as part of their educational experience and what they actually experience. Students appreciated educators who engaged them in the learning process and recognized the realities of their lives.

Combining discrete equations method and upwind downwind-controlled splitting for non-reacting and reacting two-fluid computations

International Nuclear Information System (INIS)

Tang, K.

2012-01-01

When numerically investigating multiphase phenomena during severe accidents in a reactor system, characteristic lengths of the multi-fluid zone (non-reactive and reactive) are found to be much smaller than the volume of the reactor containment, which makes the direct modeling of the configuration hardly achievable. Alternatively, we propose to consider the physical multiphase mixture zone as an infinitely thin interface. Then, the reactive Riemann solver is inserted into the Reactive Discrete Equations Method (RDEM) to compute high speed combustion waves represented by discontinuous interfaces. An anti-diffusive approach is also coupled with RDEM to accurately simulate reactive interfaces. Increased robustness and efficiency when computing both multiphase interfaces and reacting flows are achieved thanks to an original upwind downwind-controlled splitting method (UDCS). UDCS is capable of accurately solving interfaces on multi-dimensional unstructured meshes, including reacting fronts for both deflagration and detonation configurations. (author)

Positive Parenting and Challenging Children

Science.gov (United States)

Knoll, Melissa

2007-01-01

Positive parenting focuses on developing proactive ways to teach and reinforce desirable behaviors, as opposed to focusing on reacting to and attempting to decrease negative behaviors. Dr. Sheldon Braaten, Executive Director of Behavioral Institute for Children and Adolescents, offers some keys for setting up and using a positive reinforcement…

Measurements of non-reacting and reacting flow fields of a liquid swirl flame burner

Science.gov (United States)

Chong, Cheng Tung; Hochgreb, Simone

2015-03-01

The understanding of the liquid fuel spray and flow field characteristics inside a combustor is crucial for designing a fuel efficient and low emission device. Characterisation of the flow field of a model gas turbine liquid swirl burner is performed by using a 2-D particle imaging velocimetry(PIV) system. The flow field pattern of an axial flow burner with a fixed swirl intensity is compared under confined and unconfined conditions, i.e., with and without the combustor wall. The effect of temperature on the main swirling air flow is investigated under open and non-reacting conditions. The result shows that axial and radial velocities increase as a result of decreased flow density and increased flow volume. The flow field of the main swirling flow with liquid fuel spray injection is compared to non-spray swirling flow. Introduction of liquid fuel spray changes the swirl air flow field at the burner outlet, where the radial velocity components increase for both open and confined environment. Under reacting condition, the enclosure generates a corner recirculation zone that intensifies the strength of radial velocity. The reverse flow and corner recirculation zone assists in stabilizing the flame by preheating the reactants. The flow field data can be used as validation target for swirl combustion modelling.

Relation of Student Social Position to Consumer Attitudes and Understanding

Science.gov (United States)

Litro, Robert Frank

1970-01-01

A study of Connecticut high school students from different social positions found differences in consumer attitudes and understandings of money management, credit, insurance, and savings and investments. (CH)

Sentinel Gap basalt reacted in a temperature gradient

International Nuclear Information System (INIS)

Charles, R.W.; Bayhurst, G.K.

1983-01-01

Six basalt prisms were reacted in a controlled temperature gradient hydrothermal circulation system for two months. The prisms were centered at 72, 119, 161, 209, 270, and 310 0 C. Total pressure was 1/3 kbar. All prisms showed large weight loss: 5.5% to 14.9%. The matrix micropegmatite and natural nontronitic alteration reacted readily to clays at all temperatures. The first four prisms were coated with a calcium smectite, and the last two prisms were covered with discrete patches of potassium-rich phengite and alkali feldspar. The results indicated that clays may act as adsorbers of various ions

Sentinel Gap basalt reacted in a temperature gradient

International Nuclear Information System (INIS)

Charles, R.W.; Bayhurst, G.K.

1982-01-01

Six basalt prisms were reacted in a controlled temperature gradient hydrothermal circulation system for two months. The prisms are centered at 72, 119, 161, 209, 270, and 310 0 C. Total pressure is 1/3 kbar. All prisms show large weight loss: 5.5% to 14.9%. The matrix micropegmatite and natural nontronitic alteration readily reacts to clays at all temperatures. The first four prisms are coated with a Ca-smectite while the last two prisms are covered with discrete patches of K rich phengite and alkali feldspar. The clays may act as adsorbers of various ions

Prevalence of Allergy to Natural Rubber Latex and Potential Cross Reacting Food in Operation Room Staff in Shiraz Hospitals -2006

Directory of Open Access Journals (Sweden)

H Nabavizade

2007-07-01

Full Text Available Introduction & Objective: Allergic reactions to natural rubber latex have increased during past 10 years especially among health care workers and patients with high exposure to latex allergens. Allergic reaction to latex is related to many diseases like occupational asthma. This study was performed to determine the prevalence of allergy to natural rubber latex and potential cross reacting food in operation room staff in Shiraz hospitals. Materials & Methods: In this cross-sectional descriptive study five hundred eighty operation room staff of ten private and state hospitals in Shiraz completed latex allergy questionnaire. They were questioned about personal history and previous history of latex sensitivity, symptoms of latex reactivity and about other allergies particularly to foods that may cross react with latex. Informed consent was obtained and skin prick testing was performed with natural rubber latex. Skin prick tests were done with three potentially cross reacting food (banana, Kiwi, and potato. The obtained data were analyzed with SPSS software and Chi-square test. Results: Among the 580 operation room workers 104 (17.9 % of participants were positive to latex skin test. We found a significant association between positive skin test to latex in operation room staff and atopy, urticaria and food allergy. Positive skin test to latex related to positive kiwi skin test (p<0.05. The prevalence did not vary by sex, age, education, surgical and non surgical glove users, history of contact dermatitis or smoking status. Conclusion: Latex allergy has a high prevalence in personnel of operation room. Evaluation of present symptom and prediction of future disease necessitate screening test in individuals at risk.

IgE antibodies of fish allergic patients cross-react with frog parvalbumin.

Science.gov (United States)

Hilger, C; Thill, L; Grigioni, F; Lehners, C; Falagiani, P; Ferrara, A; Romano, C; Stevens, W; Hentges, F

2004-06-01

The major allergens in fish are parvalbumins. Important immunoglobulin (Ig)E cross-recognition of parvalbumins from different fish species has been shown. Recently frog parvalbumin alpha has been found to be responsible for a case of IgE-mediated anaphylaxis triggered by the ingestion of frog meat. The aim of this study was to investigate whether IgE antibodies of fish allergic persons cross-react with frog parvalbumin and to appreciate its clinical relevance. The sera of 15 fish allergic patients and one fish and frog allergic patient were tested by IgE-immunoblotting against frog muscle extract. Sera were tested against recombinant parvalbumin alpha and beta from Rana esculenta. Skin prick tests were performed in selected patients with recombinant frog parvalbumin. Ca(2+) depletion experiments and inhibition studies with purified cod and frog recombinant parvalbumin were done to characterize the cross-reactive pattern. Fourteen of the sera tested had IgE antibodies recognizing low molecular weight components in frog muscle extract. Calcium depletion experiments or inhibition of patient sera with purified cod parvalbumin led to a significant or complete decrease in IgE binding. When tested against recombinant parvalbumins, three of 13 sera reacted with alpha parvalbumin and 11 of 12 reacted with beta parvalbumin from R. esculenta. Skin prick tests performed with recombinant frog parvalbumin were positive in fish allergic patients. Inhibition studies showed that a fish and frog allergic patient was primarily sensitized to fish parvalbumin. Cod parvalbumin, a major cross-reactive allergen among different fish species, shares IgE binding epitopes with frog parvalbumin. This in vitro cross-reactivity seems to be also clinically relevant. Parvalbumins probably represent a new family of cross-reactive allergens.

Positive teacher–student relationships go beyond the classroom, problematic ones stay inside

NARCIS (Netherlands)

C. A. Claessens, Luce|info:eu-repo/dai/nl/357401530; van Tartwijk, Jan|info:eu-repo/dai/nl/112629385; C. van der Want, Anna; Pennings, Heleen|info:eu-repo/dai/nl/323242588; Verloop, Nico; J. den Brok, Perry; Wubbels, Theo|info:eu-repo/dai/nl/070651361

2017-01-01

The authors voice teachers' perceptions of their interpersonal experiences with students in both positive and problematic relationships. Interview data from 28 teachers were examined by coding utterances on teacher and student interactions. Results indicate that teachers defined the quality of the

Competing discourses and the positioning of students in an adult basic education programme

DEFF Research Database (Denmark)

Jensen, Anne Winther

2011-01-01

This article presents a case study of the learning processes of students enrolled in an adult basic education programme in the social and health care sector in Denmark. Theoretically the project draws on ‘positioning theory’, i.e. a poststructuralist approach. The issues being researched are how...... the students are positioned and position themselves in relation to the discourses mobilised in the programme. A qualitative inquiry, the empirical aspects consist of observations, interviews and studying documents. In addition to suggesting that competition exists between the opposing discourses mobilised...

An experimental and numerical study of confined non-reacting and reacting turbulent jets to facilitate homogeneous combustion in industrial furnaces

Science.gov (United States)

Lee, Insu

Confined non-reacting turbulent jets are ideal for recirculating the hot flue gas back into the furnace from an external exhaust duct. Such jets are also used inside the furnace to internally entrain and recirculate the hot flue gas to preheat and dilute the reactants. Both internal and external implementation of confined turbulent jets increase the furnace thermal efficiency. For external implementation, depending on the circumstances, the exhaust gas flow may be co- or counter-flow relative to the jet flow. Inside the furnaces, fuel and air jets are injected separately. To create a condition which can facilitate near homogeneous combustion, these jets have to first mix with the burned gas inside the furnace and simultaneously being heated and diluted prior to combustion. Clearly, the combustion pattern and emissions from reacting confined turbulent jets are affected by jet interactions, mixing and entrainment of hot flue gas. In this work, the flow and mixing characteristics of a non-reacting and reacting confined turbulent jet are investigated experimentally and numerically. This work consists of two parts: (i) A study of flow and mixing characteristics of non-reacting confined turbulent jets with co- or counter-flowing exhaust/flue gas. Here the axial and radial distributions of temperature, velocity and NO concentration (used as a tracer gas) were measured. FLUENT was used to numerically simulate the experimental results. This work provides the basic understanding of the flow and mixing characteristics of confined turbulent jets and develops some design considerations for recirculating flue gas back into the furnace as expressed by the recirculation zone and the stagnation locations. (ii) Numerical calculations of near homogeneous combustion are performed for the existing furnace. The exact geometry of the furnace in the lab is used and the real dimensional boundary conditions are considered. The parameters such as air nozzle diameter (dair), fuel nozzle

Weaving Student Engagement into the Core Practices of Schools. A National Dropout Prevention Center/Network Position Paper

Science.gov (United States)

Dary, Teri; Pickeral, Terry; Shumer, Rob; Williams, Anderson

2016-01-01

This position paper on student engagement is organized in response to major questions on how student engagement aligns with dropout prevention. Through a set of questions and responses, the "Weaving Student Engagement Into the Core Practices of Schools" position paper on student engagement : (1) defines the term "student…

Continuum-Kinetic Hybrid Framework for Chemically Reacting Flows

Data.gov (United States)

National Aeronautics and Space Administration — Predictive modeling of chemically reacting flows is essential for the design and optimization of future hypersonic vehicles. During atmospheric re-entry, complex...

Positive Social Support, Negative Social Exchanges, and Suicidal Behavior in College Students

Science.gov (United States)

Hirsch, Jameson K.; Barton, Alison L.

2011-01-01

Objective: Risk for suicide is often higher among college students, compared to same-age noncollegiate peers, and may be exacerbated by quality of social support and interactions. The authors examined the independent contributions of positive social support and negative social exchanges to suicide ideation and attempts in college students.…

Study of Transport and Micro-structural properties of Magnesium Di-Boride Strand under react and bend mode and bend and react mode

International Nuclear Information System (INIS)

Kundu, Ananya; Kumar Das, Subrat; Bano, Anees; Pradhan, Subrata

2017-01-01

I-V characterization of commercial multi-filamentary Magnesium Di-Boride (MgB 2 ) wire of diameter 0.83 mm were studied in Cryocooler at self-field I-V characterization system under both react and bend mode and bend and react mode for a range of temperature 6 K - 25 K. This study is of practical technical relevance where the heat treatment of the superconducting wire makes the wire less flexible for winding in magnet and in other applications. In the present work the bending diameter was varied from 40 mm to 20 mm and for each case critical current (I c ) of the strand is measured for above range of temperature. A customized sample holder is fabricated and thermally anchored with the 2 nd cold stage of Cryocooler. It is observed from the measurement that the strand is more susceptible to degradation for react and bend cases. The transport measurement of the strand was accompanied by SEM analyses of bend samples. Also the tensile strength of the raw strands and the heat treated strands were carried out at room temperature in Universal Testing Machine (UTM) to have an estimate about the limiting winding tension value during magnet fabrication. (paper)

Antibody reaction of human anti-Toxoplasma gondii positive and negative sera with Neospora caninum antigens

OpenAIRE

Nam, Ho-Woo; Kang, Seung-Won; Choi, Won-Young

1998-01-01

Anti-Neospora caninum antibody was detected in anti-Toxoplasma gondii positive and negative human sera by ELISA, western blot and immunofluorescence assay (IFA). Twelve cases out of 172 (6.7%) Toxoplasma-positive sera cross-reacted with both T. gondii and N. caninum antigens, and one out of 110 Toxoplasma-negative sera reacted with N. caninum antigen by ELISA. By western blot, all 12 sera reacted with T. gondii antigens with various banding patterns but specifically at 30 kDa (SAG1) and 22 kD...

Demonstration of Hybrid DSMC-CFD Capability for Nonequilibrium Reacting Flow

Science.gov (United States)

2018-02-09

AFRL-RV-PS- TR-2018-0056 AFRL-RV-PS- TR-2018-0056 DEMONSTRATION OF HYBRID DSMC-CFD CAPABILITY FOR NONEQUILIBRIUM REACTING FLOW Thomas E...4. TITLE AND SUBTITLE Demonstration of Hybrid DSMC-CFD Capability for Nonequilibrium Reacting Flow 5a. CONTRACT NUMBER 5b. GRANT NUMBER FA9453-17-1...simulation codes. The models are based on new ab-intio rate data obtained using state -of-the-art potential energy surfaces for air species. A probability

Schoolwide Positive Behavior Supports and Students with Significant Disabilities: Where Are We?

Science.gov (United States)

Kurth, Jennifer A.; Enyart, Matt

2016-01-01

Although the number of schools implementing schoolwide positive behavior supports (SWPBS) has increased dramatically, the inclusion of students with severe disabilities in these efforts remains negligible. This article describes the evolution of positive behavior intervention and supports into the SWPBS approach used in many schools today,…

Specialty satisfaction, positive psychological capital, and nursing professional values in nursing students: A cross-sectional survey.

Science.gov (United States)

Woo, Chung Hee; Park, Ju Young

2017-10-01

Ideally, college majors should be chosen to achieve self-realization and correspond to self-concept. However, some students select a major based on extrinsic factors, rather than aptitude or interests, because of a lack of employment opportunities. If they have negative college experiences with an unsatisfactory major, they might not engage fully in their occupation following graduation. This study aimed to identify factors affecting specialty satisfaction in preclinical practice nursing-college students. A cross-sectional descriptive survey. A nonprobability convenience sample of 312 nursing-college students at colleges in Deajeon City, South Korea. The survey questionnaire was distributed to those who agreed to participate. Freshmen and sophomore nursing students (n=312). Participants were 312 students at colleges in Deajeon City. A structured questionnaire was used to collect data, which were analyzed using SPSS/WIN. Positive psychological capital and nursing professional values were positively correlated with specialty satisfaction. Significant predictors for specialty satisfaction included hope and optimism (as components of positive psychological capital), the roles of nursing service and originality of nursing (as nursing professional values), and aptitude/interests and job value (as motives for selecting a major). The findings suggested that nursing students' specialty satisfaction was partially linked to positive psychological capital and professional values. Therefore, the promotion of positive factors should be useful in enhancing specialty satisfaction in preclinical-practice nursing-college students. Copyright © 2017 Elsevier Ltd. All rights reserved.

An experimental study on downstream of the transition of the chemically reacting liquid round free jet

International Nuclear Information System (INIS)

Hong, S.D.; Sugii, Y.; Okamoto, K.; Madarame, H.

2002-01-01

An experimental study was conducted on the chemically reacting liquid round free jet, Laser Induced Fluorescence (LIF) technique was adopted to evaluate the diffusion width of the jet into liquid streams. In the fluid engineering, it is very important to evaluate the characteristics of reacting jet for the safety of the nuclear reactor. In this study, the jet profile of downstream region far away from the transition point was evaluated, providing comparisons between reacting and non-reacting jet case. The concentration of the jet solution was varied from 0.01 mol/L to 0.5 mol/L in reacting cases. In the downstream far away from the transition point, the jet profiles between reacting cases and non-reacting cases were visualized quite different. It was concluded that the chemical reaction affects the momentum diffusion of the jet in the downstream region. (author)

Positive and Negative Perceptions of Bumiputra And Non-Bumiputra Students on Professional Qualification

Directory of Open Access Journals (Sweden)

Abd. Rashid Noor Asidah

2017-01-01

Full Text Available Bumiputra and non-Bumiputra students may come from various economic backgrounds and culture. This may influence their perception on their career choice of pursuing a professional accounting qualification. Thus, this study investigates the difference in positive and negative perceptions of Bumiputra and non-Bumiputra students on pursuing a professional qualification upon graduation. A questionnaire survey method was used to collect the data from final year accounting students from five public and three private universities in Malaysia. Means and independent sample t-tests results were analysed. Results indicated that there are only a few significant differences between Bumiputra and non-Bumiputra students on positive and negative perceptions on becoming professional accountants. As perception frames action, these findings would be useful to the Malaysian Institute of Accountants as well as professional bodies to attract both Bumiputra and non-Bumiputra graduates to become professional accountants.

Psychiatric framing affects positive but not negative schizotypy scores in psychology and medical students.

Science.gov (United States)

Mohr, Christine; Schofield, Kerry; Leonards, Ute; Wilson, Marc S; Grimshaw, Gina M

2018-08-01

When testing risk for psychosis, we regularly rely on self-report questionnaires. Yet, the more that people know about this condition, the more they might respond defensively, in particular with regard to the more salient positive symptom dimension. In two studies, we investigated whether framing provided by questionnaire instructions might modulate responses on self-reported positive and negative schizotypy. The O-LIFE (UK study) or SPQ (New Zealand study) questionnaire was framed in either a "psychiatric", "creativity", or "personality" (NZ only) context. We tested psychology students (without taught knowledge about psychosis) and medical students (with taught knowledge about psychosis; UK only). We observed framing effects in psychology students in both studies: positive schizotypy scores were lower after the psychiatric compared to the creativity instruction. However, schizotypy scores did not differ between the creativity and personality framing conditions, suggesting that the low scores with psychiatric framing reflect defensive responding. The same framing effect was also observed in medical students, despite their lower positive schizotypy scores overall. Negative schizotypy scores were not affected by framing in either study. These results highlight the need to reduce response biases when studying schizotypy, because these might blur schizotypy-behaviour relationships. Copyright © 2018 Elsevier B.V. All rights reserved.

Technology of forming a positive attitude to physical training students of special medical group

Directory of Open Access Journals (Sweden)

Mukhamediarov N.N.

2013-04-01

Full Text Available Defined effective technology stages of forming a positive attitude towards physical education of students in special medical groups, stimulate motivation, epistemologically, informative, content-procedural, analytical and adjustment. For each stage technology offered special tools: lectures, seminars, analysis articles, mini conference on improving technique, racing games, mini-competitions, diagnostic interviews, questionnaires, analysis of log data on attendance. Selected criteria forming positive attitudes towards physical education: theoretical and practical, formed groups for research: experimental and control, analyzed results introduction of technology, efficiency of the proposed technology and means forming a positive attitude towards physical education students in special medical groups.

DOES POSITIONING HAVE A PLACE IN THE MINDS OF OUR STUDENTS?

Directory of Open Access Journals (Sweden)

Tatu Cristian Ionut

2010-12-01

Full Text Available Positioning is one of the most powerful marketing concepts. At the beginning, the meaning of positioning was rather limited, focusing on the concept of reputation. Then it became ”the place a brand occupies in the mind of its target audience”. Under this meaning , many companies have implemented the concept of positioning as a part of their everyday marketing activities. Nowadays, positioning is being used as a tool for explaining how consumers relate to foreign countries. The concept of positioning is simply to important to be ignored, but does it have a place in our students minds? This paper aims to determine whether we have an evolution or an involution in this matter.

BETWEEN THE RIGHT AND THE COMMON. HOW GROUPS REACT TO SOCIALLY UNDESIRABLE BEHAVIOUR

Directory of Open Access Journals (Sweden)

Komendant-Brodowska Agata

2017-06-01

Full Text Available The aim of the paper is to analyse the relationship between group characteristics and the scope of reaction of the group to socially undesirable behaviour. Sometimes small groups or communities fail to react to undesirable or violent behaviour and their apathy can have devastating consequences. Such a situation can occur among co-workers witnessing workplace mobbing, or neighbours who do not react to a suspicion of domestic violence. Reasons for their inaction are diverse and can include fear, doubts concerning the necessity of such a reaction, and also conformity. In the paper I examine a seemingly favourable situation: I assume that reaction is costless and all the members of the group would like to react (internalised norm, but they also want to conform. In order to analyse the factors that can influence the scope of group reaction, a structurally embedded sequential coordination game was played for different initial conditions. Computer simulations were conducted for networks of a specific type (Erd¨os-R´enyi random graph. The main aim of the analysis was to identify non-structural and structural features of the group that can impede or even block the intervention of the group. There is a positive relationship between the scope of group reaction and the strength of the internalized norm, whereas the level of conformity affects the chances of group intervention in a negative way. Heterogeneity of the group is an important factor - the scope of reaction is higher when members of the group have different levels of norm internalisation and conformity. There is a non-linear relationship between network density and the scope of reaction. Both low and high density can make it harder for people to act.

Improving Resilience to Emergencies through Advanced Cyber Technologies: the I-REACT project

Directory of Open Access Journals (Sweden)

Claudia Maltoni

2017-08-01

be equipped with essential tools for early warning and response. At the same time, private companies could leverage specific set of I-REACT components to improve their business, when linked to disaster management. Overall, I-REACT aims to be a European-wide contribution to build more secure and resilient societies to disasters.

Leadership Is Positively Related to Athletic Training Students' Clinical Behaviors

Science.gov (United States)

Kutz, Matthew R.

2012-01-01

Context: Leadership development by health professionals positively affects patient outcomes. Objective: To 1) determine if there is any relationship between demonstrated leadership behaviors and clinical behaviors among entry-level AT students (ATS); 2) to explore if the level of leadership behavior changes between ATS level; and 3) to determine…

The Virtual Workplace Ethnography: Positioning Student Writers as Knowledge Makers

Science.gov (United States)

Sommers, Jeff

2015-01-01

The Virtual Workplace Ethnography is a first-year composition assignment that positions students as knowledge makers by requiring them to apply a theoretical lens ("Working Knowledge") to a video representation of a workplace. The lens provides multiple terms for analysis of workplace behaviors in context, providing a scaffolding for…

Developing Autonomous Learning in First Year University Students Using Perspectives from Positive Psychology

Science.gov (United States)

Macaskill, Ann; Denovan, Andrew

2013-01-01

Autonomous learning is a commonly occurring learning outcome from university study, and it is argued that students require confidence in their own abilities to achieve this. Using approaches from positive psychology, this study aimed to develop confidence in first-year university students to facilitate autonomous learning. Psychological character…

Process to separate alkali metal salts from alkali metal reacted hydrocarbons

Energy Technology Data Exchange (ETDEWEB)

Gordon, John Howard; Alvare, Javier; Larsen, Dennis; Killpack, Jeff

2017-06-27

A process to facilitate gravimetric separation of alkali metal salts, such as alkali metal sulfides and polysulfides, from alkali metal reacted hydrocarbons. The disclosed process is part of a method of upgrading a hydrocarbon feedstock by removing heteroatoms and/or one or more heavy metals from the hydrocarbon feedstock composition. This method reacts the oil feedstock with an alkali metal and an upgradant hydrocarbon. The alkali metal reacts with a portion of the heteroatoms and/or one or more heavy metals to form an inorganic phase containing alkali metal salts and reduced heavy metals, and an upgraded hydrocarbon feedstock. The inorganic phase may be gravimetrically separated from the upgraded hydrocarbon feedstock after mixing at a temperature between about 350.degree. C. to 400.degree. C. for a time period between about 15 minutes and 2 hours.

Numerical simulation of reacting and non-reacting flow in a combustion chamber; Numerisk simulering av reagerande och icke-reagerande stroemning i en braennkammare

Energy Technology Data Exchange (ETDEWEB)

Borg, A.; Revstedt, J.

1996-04-01

The purpose of this work has been to do a preliminary study of how well numerical calculations with different turbulence models can predict the flow and temperature fields of a strongly swirling and combusting flow in an experimental combustion chamber and to see which parameters in the mathematical model are the most important. The combustion chamber on which we have done the calculations is called Validation Rig II and was designed by Volvo Aero Corporation. The main part of the study has been carried out on a non-reacting flow but some work has also been done on reacting flow. In most cases it has not been meaningful to compare the calculations with the measurements because they differ quite a lot from each other. For the non-reacting case the following investigations have been made: * How the solution differs for different turbulence models, * The solutions sensitivity to inlet boundary conditions, * How different types of leakage disturb the flow, and * The difference in results between two different CFD-codes, the commercial code CFDS-Flow3D and a code developed at the department of fluid mechanics. For the reacting cases we have studied the influence of: * one or two reaction steps, * the effects of a change in reaction rate, * the influence of thermal radiation, and * the effects of changing the boundary conditions for temperature on the walls. The results from these calculations show that the inlet turbulence intensity has very little effect on the values of the turbulent quantities as well as the velocity profiles at the outlet. Changing the turbulence model or the outlet boundary conditions gives some change in velocity profiles at the outlet but only marginal effects on the swirl number. 21 refs, 54 figs, 19 tabs

Positive Psychology and Familial Factors as Predictors of Latina/o Students' Psychological Grit

Science.gov (United States)

Vela, Javier C.; Lu, Ming-Tsan P.; Lenz, A. Stephen; Hinojosa, Karina

2015-01-01

Positive psychology is a useful framework to understand Latina/o students' experiences. In the current study, we examined how presence of meaning in life, search for meaning in life, hope, and family importance influenced 128 Latina/o college students' psychological grit. We used the Meaning in Life Questionnaire (MLQ), Subjective Happiness Scale,…

Intervention for Positive Use of Leisure Time among College Students

Science.gov (United States)

Yarnal, Careen; Qian, Xinyi; Hustad, John; Sims, Damon

2013-01-01

College student excessive alcohol use is a pressing public health concern, and many of the negative events associated with heavy drinking occur during leisure or free time. Positive use of leisure can lead to coping skills, stress reduction, and healthy development. Negative use of leisure, including heavy alcohol use, is associated with physical…

The Effectiveness of Positive Coping Program on Reduction of Addiction Potential in Students

Directory of Open Access Journals (Sweden)

Fatemeh Nematollahi

2010-02-01

Full Text Available Objective: This study aimed to study the effectiveness of positive coping program on reduction of addiction potential in dormitory girl students. Method: The research method was semi experimental method namely: pre test-post test with witness group. In selection of sample, first addiction potential scale administered among 160 dormitory girl students, and 20 of them who were scored higher than cutoff score on addiction potential scale selected and divided to two experimental and witness groups. Experimental group received 10 sessions training which each session was 90 minutes. Positive coping program was based on three components of Bob Murray’s theory namely: social relationships, goal setting and spirituality. After finishing of training Post test were administered in both experimental and witness groups. Results: The results showed positive coping training was significantly reduced students’ addiction potential. Conclusion: The training of positive coping can be affect on reduction of girl students’ addiction potential.

Instructors' Positive Emotions: Effects on Student Engagement and Critical Thinking in U.S. and Chinese Classrooms

Science.gov (United States)

Zhang, Qin; Zhang, Jibiao

2013-01-01

In this study, we used the broaden-and-build theory and emotional response theory as the framework to examine the effects of instructors' positive emotions on student engagement and critical thinking in U.S. and Chinese classrooms, as well as the mediating role of students' positive emotions in their relationships. MANOVA results revealed no…

Suppressor Effects of Positive and Negative Religious Coping on Academic Burnout Among Korean Middle School Students.

Science.gov (United States)

Noh, Hyunkyung; Chang, Eunbi; Jang, Yoojin; Lee, Ji Hae; Lee, Sang Min

2016-02-01

Statistical suppressor effects in prediction models can provide evidence of the interdependent relationship of independent variables. In this study, the suppressor effects of positive and negative religious coping on academic burnout were examined using longitudinal data. First, 388 middle school students reported their type of religion and use of positive and negative religious coping strategies. Four months later, they also reported their level of academic burnout. From structural equation modeling, significant suppressor effects were found among religious students. That is, the coefficients became larger when both positive and negative religious coping predicted academic burnout simultaneously, compared to when each religious coping predicted academic burnout alone. However, suppressor effects were not found among non-religious students.

Social dominance, values and ideological positioning in college students

Directory of Open Access Journals (Sweden)

Elena Zubieta

2015-09-01

Full Text Available Social Dominance Theory (Sidanius & Pratto, 1999 stress that systematic inter group discrimination is related to social ideologies that contribute to coordinate institutions and individuals behaviors. The acceptance of inequity legitimating ideologies is partially determined for individuals general desire of group based domination. This desire is captured by Social Orientation Domination construct -SDO. Pursuing the objective of exploring SDO levels and its relationship with variables such ideological positioning and values, a descriptive correlation study, with a non experimental design, was carried out based on a convenience sample composed by 254 college students from Buenos Aires city surroundings . Results show that SDO is positively associated with Power and Achievement values and negatively with Benevolence and Universalism. SDO is stronger in participants right side ideologically positioned. Participants show a low SDO, emphasize self- trascendence and openness to change values and tend to a left side ideological positioning. Age, participant’s quality of “students” and prevailed career orientation can be seen as factors conditioning a more hierarchies attenuating believes and behaviors. 

Alignment of Hands-On STEM Engagement Activities with Positive STEM Dispositions in Secondary School Students

Science.gov (United States)

Christensen, Rhonda; Knezek, Gerald; Tyler-Wood, Tandra

2015-01-01

This study examines positive dispositions reported by middle school and high school students participating in programs that feature STEM-related activities. Middle school students participating in school-to-home hands-on energy monitoring activities are compared to middle school and high school students in a different project taking part in…

An analysis of motivation factors for students' pursuit of leadership positions.

Science.gov (United States)

Phillips, Jennifer A; McLaughlin, Milena M; Gettig, Jacob P; Fajiculay, Jay R; Advincula, M Renee

2015-02-17

To identify factors that influence student involvement and leadership within organizations and to assess the impact of involvement in organizations on professional skill development. A printed survey was administered to fourth-year pharmacy students at one college of pharmacy (N=202). Most students (82%) indicated they were involved in at least one organization during pharmacy school and 58% reported holding a leadership position at some point. Factors with the largest impact on involvement in organizations were desire to present a well-rounded image to employers, ability to network, and interest in the activities sponsored by the organization. Involvement in professional organizations had a strong influence on their leadership, teamwork, confidence, and time-management skills. That presenting a well-rounded image to employers and having the ability to network with mentors and peers drove student involvement in professional organizations may be reflective of increasing competition for residencies and jobs.

Comparison of improved finite-difference WENO schemes for the implicit large eddy simulation of turbulent non-reacting and reacting high-speed shear flows

International Nuclear Information System (INIS)

Zhao, S.; Lardjane, N.; Fedioun, I.

2014-01-01

Improved WENO schemes, Z, M, and their combination MZ, originally designed to capture sharper discontinuities than the classical fifth order Jiang-Shu scheme does, are evaluated for the purpose of implicit large eddy simulation of free shear flows. 1D Fourier analysis of errors reveals the built-in filter and dissipative properties of the schemes, which are subsequently applied to the canonical Rayleigh-Taylor and Taylor-Green flows. Large eddy simulations of a transonic non-reacting and a supersonic reacting air/H2 jets are then performed at resolution 128 * 128 * 512, showing no significant difference in the flow statistics. However, the computational time varies from one scheme to the other, the Z scheme providing the smaller wall-time due to larger allowed time steps. (authors)

Computation of turbulent reacting flow in a solid-propellant ducted rocket

Science.gov (United States)

Chao, Yei-Chin; Chou, Wen-Fuh; Liu, Sheng-Shyang

1995-05-01

A mathematical model for computation of turbulent reacting flows is developed under general curvilinear coordinate systems. An adaptive, streamline grid system is generated to deal with the complex flow structures in a multiple-inlet solid-propellant ducted rocket (SDR) combustor. General tensor representations of the k-epsilon and algebraic stress (ASM) turbulence models are derived in terms of contravariant velocity components, and modification caused by the effects of compressible turbulence is also included in the modeling. The clipped Gaussian probability density function is incorporated in the combustion model to account for fluctuations of properties. Validation of the above modeling is first examined by studying mixing and reacting characteristics in a confined coaxial-jet problem. This is followed by study of nonreacting and reacting SDR combustor flows. The results show that Gibson and Launder's ASM incorporated with Sarkar's modification for compressible turbulence effects based on the general curvilinear coordinate systems yields the most satisfactory prediction for this complicated SDR flowfield.

Reliability and validity of the Positive Mental Health Questionnaire in a sample of Spanish university students.

Science.gov (United States)

Roldán-Merino, J; Lluch-Canut, M T; Casas, I; Sanromà-Ortíz, M; Ferré-Grau, C; Sequeira, C; Falcó-Pegueroles, A; Soares, D; Puig-Llobet, M

2017-03-01

WHAT IS KNOWN ON THE SUBJECT?: In general, the current studies of positive mental health use questionnaires or parts thereof. However, while these questionnaires evaluate aspects of positive mental health, they fail to measure the construct itself. WHAT DOES THIS PAPER ADD TO EXISTING KNOWLEDGE?: The widespread use and the lack of specific questionnaires for evaluating the positive mental health construct justify the need to measure the robustness of the Positive Mental Health Questionnaire. Also six factors are proposed to measure positive mental health. WHAT ARE THE IMPLICATIONS FOR PRACTICE?: The availability of a good questionnaire to measure positive mental health in university students is useful not only to promote mental health but also to strengthen the curricula of future professionals. Introduction Nursing has a relevant role in managing mental health. It is important to identify and thereafter to enhance positive aspects of mental health among university nursing students. Aim The aim of the present study was to analyse the psychometric properties of the Positive Mental Health Questionnaire (PMHQ) in terms of reliability and validity using confirmatory factor analysis in a sample of university students. Method A cross-sectional study was carried out in a sample of 1091 students at 4 nursing schools in Catalonia, Spain. The reliability of the PMHQ was measured by means of Cronbach's alpha coefficient, and the test-retest stability was measured with the intraclass correlation coefficient (ICC). Confirmatory factor analysis was used to determine the validity of the factorial structure. Results Cronbach's alpha coefficient was satisfactory (>0.70) for four of the six subscales or dimensions and ranged from 0.54 to 0.79. ICC analysis was satisfactory for the six subscales or dimensions. The hypothesis was confirmed in the analysis of the correlations between subclasses and the overall scale, with the strongest correlations being found between the majority of

The School Nurse's Role in Behavioral Health of Students. Position Statement

Science.gov (United States)

McDermott, Elizabeth; Bohnenkamp, Jill Haak; Freedland, Mary; Baker, Dian; Palmer, Karla

2017-01-01

It is the position of the National Association of School Nurses (NASN) that registered, professional school nurses (hereinafter referred to as school nurses) serve a vital role in promoting positive behavioral health outcomes in students through evidence-based programs and curricula in schools and communities. Behavioral health is as critical to…

Stewards of children education: Increasing undergraduate nursing student knowledge of child sexual abuse.

Science.gov (United States)

Taylor, L Elaine; Harris, Heather S

2018-01-01

Child sexual abuse and exploitation are an increasing public health problem. In spite of the fact that nurses are in a unique position to identify and intervene in the lives of children suffering from abuse due to their role in providing health care in a variety of settings, nursing curricula does not routinely include this focus. The goal was to document the effectiveness of the Stewards of Children child sexual abuse training as an effective educational intervention to increase the knowledge level of undergraduate nursing students on how to prevent, recognize, and react responsibly to child sexual abuse and trafficking. Undergraduate nursing students were required to take the Stewards of Children training in their last semester prior to graduation. Students in the study were given a pre-test prior to the class and a post-test following the class. Pre- and post-tests were graded and the results were compared along with an item indicating the participants' perception of the educational intervention in improving their confidence and competence in this area. Data analysis revealed that post-test scores following training were significantly improved: pre-test mean=45.5%; post-test mean score=91.9%. The statistical significance of the improvement was marked, pChildren training. Students also reported a high level of confidence in how to prevent abuse and react skillfully when child sexual abuse had occurred. The authors concluded that Stewards of Children is an effective option to educate nursing students on this topic. Copyright © 2017. Published by Elsevier Ltd.

Nb3Sn dipole magnet reacted after winding

International Nuclear Information System (INIS)

Taylor, C.; Scanlan, R.; Peters, C.; Wolgast, R.; Gilbert, W.; Hassenzahl, W.; Meuser, R.; Rechen, J.

1984-09-01

A 5 cm bore dia., 1-m-long dipole model magnet was constructed by winding un-reacted cable, followed by reaction and epoxy-impregnation. Experience and test results are described on the 1.7 mm dia. internal-tin wire, the eleven-strand flattened cable, fiberglass insulation, and construction of the magnet. Each half of the magnet has two double-pancake-type windings that were reacted in a single operation. The two double-pancakes were then separately vacuum impregnated after soldering the flexible Nb-Ti leads to the Nb 3 Sn conductors. No iron flux return yoke was used. In initial tests a central field of 8.0 T was reached at 4.4 K. However, evidence from training behavior, and 1.8 K tests indicate that premature quenching, rather than critical current of the cable, limited the field intensity. The magnet was reassembled and more rigidly clamped; additional test results are reported

REAC/TS radiation accident registry. Update of accidents in the United States

International Nuclear Information System (INIS)

Ricks, R.C.; Berger, M.E.; Holloway, E.C.; Goans, R.E.

2000-01-01

Serious injury due to ionizing radiation is a rare occurrence. From 1944 to the present, 243 US accidents meeting dose criteria for classification as serious are documented in the REAC/TS Registry. Thirty individuals have lost their lives in radiation accidents in the United States. The Registry is part of the overall REAC/TS program providing 24-hour direct or consultative assistance regarding medical and heath physics problems associated with radiation accidents in local, national, and international incidents. The REAC/TS Registry serves as a repository of medically important information documenting the consequences of these accidents. Registry data are gathered from various sources. These include reports from the World Heath Organization (WHO), International Atomic Energy Agency (IAEA), US Nuclear Regulatory Commission (US NRC), state radiological health departments, medical/health physics literature, personal communication, the Internet, and most frequently, from calls for medical assistance to REAC/TS, as part of our 24-hour medical assistance program. The REAC/TS Registry for documentation of radiation accidents serves several useful purposes: 1) weaknesses in design, safety practices, training or control can be identified, and trends noted; 2) information regarding the medical consequences of injuries and the efficacy of treatment protocols is available to the treating physician; and 3) Registry case studies serve as valuable teaching tools. This presentation will review and summarize data on the US radiation accidents including their classification by device, accident circumstances, and frequency by respective states. Data regarding accidents with fatal outcomes will be reviewed. The inclusion of Registry data in the IAEA's International Reporting System of Radiation Events (RADEV) will also be discussed. (author)

The Effects of the First Step to Success Program on Teacher-Student Positive Interactions

OpenAIRE

Liao, Christy

2012-01-01

Positive student-teacher interactions have been linked to academic and social-success of all students. The present study examined the effects of the First Steps to Success program in improving the teacher-student interaction of three Latino English Language Learners (ELL) participants identified as at risk for behavioral and academic problems. A single subject multiple baseline research design was employed for this study. Data showed a functional relationship between the behavioral interventi...

Principals Can and Should Make a Positive Difference for LGBTQ Students

Science.gov (United States)

Boyland, Lori G.; Swensson, Jeff; Ellis, John G.; Coleman, Lauren L.; Boyland, Margaret I.

2016-01-01

School principals should lead for social change, particularly in support of vulnerable or marginalized students. An important social justice issue in which principals must provide strong leadership, but may not be adequately prepared in university training, is creating positive and inclusive school environments for lesbian, gay, transgender,…

A stochastic model of particle dispersion in turbulent reacting gaseous environments

Science.gov (United States)

Sun, Guangyuan; Lignell, David; Hewson, John

2012-11-01

We are performing fundamental studies of dispersive transport and time-temperature histories of Lagrangian particles in turbulent reacting flows. The particle-flow statistics including the full particle temperature PDF are of interest. A challenge in modeling particle motions is the accurate prediction of fine-scale aerosol-fluid interactions. A computationally affordable stochastic modeling approach, one-dimensional turbulence (ODT), is a proven method that captures the full range of length and time scales, and provides detailed statistics of fine-scale turbulent-particle mixing and transport. Limited results of particle transport in ODT have been reported in non-reacting flow. Here, we extend ODT to particle transport in reacting flow. The results of particle transport in three flow configurations are presented: channel flow, homogeneous isotropic turbulence, and jet flames. We investigate the functional dependence of the statistics of particle-flow interactions including (1) parametric study with varying temperatures, Reynolds numbers, and particle Stokes numbers; (2) particle temperature histories and PDFs; (3) time scale and the sensitivity of initial and boundary conditions. Flow statistics are compared to both experimental measurements and DNS data.

Perceived positive teacher-student relationship as a protective factor for Chinese left-behind children's emotional and behavioural adjustment.

Science.gov (United States)

Liu, Yan; Li, Xiaowei; Chen, Li; Qu, Zhiyong

2015-10-01

Using cross-sectional data collected in rural communities of two provinces of China, this study examined the protective role of perceived positive teacher-student relationship for Chinese left-behind children. The participants included 1442 children with a mean age of 14.13 classified into two groups: a left-behind group (104 boys and 110 girls) and a comparison group (588 boys and 640 girls). Self-reported questionnaires concerning self-esteem, depression, problem behaviours and the teacher-student relationship were administered. Relative to the comparison group, after controlling for age, gender and family socioeconomic status, the left-behind group was disadvantaged in terms of self-esteem and depression but not in problem behaviours. As hypothesised, the results of regression analyses indicated that teacher-student relationship positively predicted self-esteem and negatively predicted depression and problem behaviours for both groups. Moreover, the association between teacher-student relationship and depression was stronger among the left-behind group, suggesting that left-behind children were more responsive to the positive effect of a desired teacher-student relationship. Taken together, the results of our study support the idea that perceived positive teacher-student relationship may serve as a protective factor for left-behind children. Practical implications and limitations of the present study are discussed. © 2014 International Union of Psychological Science.

Simultaneous Temperature and Velocity Diagnostic for Reacting Flows, Phase I

Data.gov (United States)

National Aeronautics and Space Administration — A diagnostic technique is proposed for measuring temperature and velocity simultaneously in a high temperature reacting flow for aiding research in propulsion. The...

The Relationship between Positive Well-Being and Academic Assessment: Results from a Prospective Study on Dental Students

Directory of Open Access Journals (Sweden)

Cristina Teodora Preoteasa

2016-01-01

Full Text Available Background. Presumably, the academic stress that builds throughout the academic year has a negative effect on dental students’ psychological well-being and may have a relationship with academic performance. This research aimed to analyse the variation of positive well-being in second-year dental students, across the academic semester, in relation to consecutive examinations as part of academic assessment system (1 and to observe the relationship between academic performance during semester evaluation period and dental students’ positive well-being (2. Methods. A prospective study was conducted on second-year dental students, data on positive well-being being collected with WHO-Five Well-Being Index (WHO-5, at the beginning of the semester and after three consecutive mandatory examinations. Results. One hundred and forty-six dental students were included (77% response rate. Repeated ANOVA showed a significant progressive decline of positive well-being over the semester, which was clinically significant for an important part of them. Students who performed better in the semester evaluation period registered higher well-being levels at the beginning of the semester but a more pronounced decline of it until the semester evaluation period. Conclusion. Based on this research, a relationship between positive well-being, academic assessments, and academic performance is suggested, when evaluating them in a prospective frame.

Developing Dynamic Single Page Web Applications Using Meteor : Comparing JavaScript Frameworks: Blaze and React

OpenAIRE

Yetayeh, Asabeneh

2017-01-01

This paper studies Meteor which is a JavaScript full-stack framework to develop interactive single page web applications. Meteor allows building web applications entirely in JavaScript. Meteor uses Blaze, React or AngularJS as a view layer and Node.js and MongoDB as a back-end. The main purpose of this study is to compare the performance of Blaze and React. A multi-user Blaze and React web applications with similar HTML and CSS were developed. Both applications were deployed on Heroku’s w...

Decision of pedagogical tasks as mean of forming of pedagogical position of students of higher education physical establishments

Directory of Open Access Journals (Sweden)

Stepanchenko N.I.

2012-08-01

Full Text Available In the article one of terms of forming of pedagogical position for the students of higher education physical establishments - decision of educational-pedagogical situations (EPS is examined. Monitoring of progress from pedagogical disciplines confronted with the results of experiment on determination of levels of decision of EPS by students is conducted. It is set that the traditional model of studies provides the high level of capture students theoretical knowledge, but does not influence on forming of them pedagogical position. Most students were shown by the medium-and-low levels of formed of abilities to decide EPS. It is set that the traditional model of teaching provides the high level of capture students theoretical knowledge's, but substantially does not influence on forming of their pedagogical position. Basic difficulties are certain at a decision the students of EPS, which allow to define the basic going near development of methodical accompaniment of EPS, which must include: educational material which is based on integration of pedagogical and sporting preparation with support on context approach; algorithm of decision of tasks; questions of cognitive character.

A model for reaction rates in turbulent reacting flows

Science.gov (United States)

Chinitz, W.; Evans, J. S.

1984-01-01

To account for the turbulent temperature and species-concentration fluctuations, a model is presented on the effects of chemical reaction rates in computer analyses of turbulent reacting flows. The model results in two parameters which multiply the terms in the reaction-rate equations. For these two parameters, graphs are presented as functions of the mean values and intensity of the turbulent fluctuations of the temperature and species concentrations. These graphs will facilitate incorporation of the model into existing computer programs which describe turbulent reacting flows. When the model was used in a two-dimensional parabolic-flow computer code to predict the behavior of an experimental, supersonic hydrogen jet burning in air, some improvement in agreement with the experimental data was obtained in the far field in the region near the jet centerline. Recommendations are included for further improvement of the model and for additional comparisons with experimental data.

Social Positioning, Participation, and Second Language Learning: Talkative Students in an Academic ESL Classroom

Science.gov (United States)

Kayi-Aydar, Hayriye

2014-01-01

Guided by positioning theory and poststructural views of second language learning, the two descriptive case studies presented in this article explored the links between social positioning and the language learning experiences of two talkative students in an academic ESL classroom. Focusing on the macro- and micro-level contexts of communication,…

Personal determinants of positive states and stress in psychology students

Directory of Open Access Journals (Sweden)

G.S. Kozhukhar

2013-07-01

Full Text Available We report study results of personality characteristics as predictors of positive states (active, optimistic, emotional, subjective comfort and stress experience in adults with one higher education and ongoing training in Psychology. The respondents were 107 people aged 23 to 52 years. Diagnostic methods we used were: "SMIL" (L. Sobchik, Optimism and Activity Scale (adapted by E. Vodopyanova, C. Izard Differential Emotions Scale (adapted by A. Leonova, Subjective Comfort Scale (adapted by A. Leonova, PSM-25 Scale by Lemyr-Tessier-Fillion. The regression analysis revealed that in subjects ongoing training in Psychology, basic predictor of positive emotions and stress experience is anxiety. Cluster analysis revealed three types of subjects by their positive states experiences, which differ primarily by the level of baseline anxiety and related personality characteristics. The group of risk comprised Psychology students with a tendency to depression and negative emotions and specific personality profile.

Different event-related patterns of gamma-band power in brain waves of fast- and slow-reacting subjects.

Science.gov (United States)

Jokeit, H; Makeig, S

1994-01-01

Fast- and slow-reacting subjects exhibit different patterns of gamma-band electroencephalogram (EEG) activity when responding as quickly as possible to auditory stimuli. This result appears to confirm long-standing speculations of Wundt that fast- and slow-reacting subjects produce speeded reactions in different ways and demonstrates that analysis of event-related changes in the amplitude of EEG activity recorded from the human scalp can reveal information about event-related brain processes unavailable using event-related potential measures. Time-varying spectral power in a selected (35- to 43-Hz) gamma frequency band was averaged across trials in two experimental conditions: passive listening and speeded reacting to binaural clicks, forming 40-Hz event-related spectral responses. Factor analysis of between-subject event-related spectral response differences split subjects into two near-equal groups composed of faster- and slower-reacting subjects. In faster-reacting subjects, 40-Hz power peaked near 200 ms and 400 ms poststimulus in the react condition, whereas in slower-reacting subjects, 40-Hz power just before stimulus delivery was larger in the react condition. These group differences were preserved in separate averages of relatively long and short reaction-time epochs for each group. gamma-band (20-60 Hz)-filtered event-related potential response averages did not differ between the two groups or conditions. Because of this and because gamma-band power in the auditory event-related potential is small compared with the EEG, the observed event-related spectral response features must represent gamma-band EEG activity reliably induced by, but not phase-locked to, experimental stimuli or events. PMID:8022783

How to Promote a Technology Education Program: An Effective Campaign Will Increase Student Enrollment, Spread Goodwill, Reflect a Positive Image, and Grow Positive Involvement

Science.gov (United States)

Fitzgerald, Mike

2004-01-01

The advertising, marketing, promotion, and positioning of technology education programs have become increasingly important. Yet the rewards of promoting a program will not only bring more students and resources to the classroom, it will also bring support on a larger scale, resulting in added resources to help all students become more successful.…

Study of subgrid-scale velocity models for reacting and nonreacting flows

Science.gov (United States)

Langella, I.; Doan, N. A. K.; Swaminathan, N.; Pope, S. B.

2018-05-01

A study is conducted to identify advantages and limitations of existing large-eddy simulation (LES) closures for the subgrid-scale (SGS) kinetic energy using a database of direct numerical simulations (DNS). The analysis is conducted for both reacting and nonreacting flows, different turbulence conditions, and various filter sizes. A model, based on dissipation and diffusion of momentum (LD-D model), is proposed in this paper based on the observed behavior of four existing models. Our model shows the best overall agreements with DNS statistics. Two main investigations are conducted for both reacting and nonreacting flows: (i) an investigation on the robustness of the model constants, showing that commonly used constants lead to a severe underestimation of the SGS kinetic energy and enlightening their dependence on Reynolds number and filter size; and (ii) an investigation on the statistical behavior of the SGS closures, which suggests that the dissipation of momentum is the key parameter to be considered in such closures and that dilatation effect is important and must be captured correctly in reacting flows. Additional properties of SGS kinetic energy modeling are identified and discussed.

Informal science participation positively affects the communication and pedagogical skills of university physics students

Science.gov (United States)

Hinko, Kathleen; Finkelstein, Noah

2013-04-01

Many undergraduate and graduate physics students choose to participate in an informal science program at the University of Colorado Boulder (Partnerships for Informal Science Education in the Community (PISEC)). They coach elementary and middle school students in inquiry-based physics activities during weekly, afterschool sessions. Observations from the afterschool sessions, field notes from the students, and pre/post surveys are collected. University students are also pre/post- videotaped explaining a textbook passage on a physics concept to an imagined audience for the Communications in Everyday Language assessment (CELA). We present findings from these data that indicate informal experiences improve the communication and pedagogical skills of the university student as well as positively influence their self-efficacy as scientific communicators and teachers.

Market Positioning of Public and Private Universities:Students Perspective

Directory of Open Access Journals (Sweden)

Abdul-Kahar ADAM

2014-06-01

Full Text Available This paper concentrates on universities strategies for admitting students and the rate at which private sector universities expand in today’s higher educational setups. This paper answers the following question: to what extend are the public universities different from the private universities? In an attempt to find the answers, the whole study is developedtowards students’ perception of the universities positioning in terms of what they are offering to the customers, through what they prompt people to apply for admission? Therefore, thispaper looks at the prevailing admission strategies and potential students’ entry requirements at both public and private universities to determine the theoretical systems that are used by these universities in competition for customers (students. A quantitative survey of students in both public and private universities in Ghana was undergone In all, a total number of 255 questionnaires were printed. Only 187 were answered and returned out of 200 distributed questionnaires to the public sector universities whereas 55 questionnaires were distributed to the private sector students and 51 were answered and returned. This research was based on sampling data collection methods. The findings show that there are three categories of universities such as Publicly/Fully Independent Chartered Universities, Privately Owned Universities and Personal/Sole Proprietorship University Colleges. All these affect students’ choices for admission application. The findings clearly indicate that both public and private universitiespurposes are related using Pearson’s Product Moment Correlation Coefficient formulae to that of the sole proprietorship colleges. Also, the admission requirement strategies differ between public and private universities.

Effects of Fusion Tack Welds on Self-Reacting Friction Stir Welds

Science.gov (United States)

Nunes, A. C., Jr.; Pendleton, M. L.; Brooke, S. A.; Russell, C. K.

2012-01-01

In order to know whether fusion tack welds would affect the strength of self-reacting friction stir seam welds in 2195-T87 aluminum alloy, the fracture stresses of 144 tensile test coupons cut from 24 welded panels containing segments of friction stir welds were measured. Each of the panels was welded under unique processing conditions. A measure of the effect of the tack welds for each panel was devised. An analysis of the measures of the tack weld effect supported the hypothesis that fusion tack welds do not affect the strength of self-reacting friction stir welds to a 5% level of confidence.

Direct numerical simulations of reacting flows with detailed chemistry using many-core/GPU acceleration

KAUST Repository

Herná ndez Pé rez, Francisco E.; Mukhadiyev, Nurzhan; Xu, Xiao; Sow, Aliou; Lee, Bok Jik; Sankaran, Ramanan; Im, Hong G.

2018-01-01

A new direct numerical simulation (DNS) code for multi-component gaseous reacting flows has been developed at KAUST, with the state-of-the-art programming model for next generation high performance computing platforms. The code, named KAUST Adaptive Reacting Flows Solver (KARFS), employs the MPI+X programming, and relies on Kokkos for “X” for performance portability to multi-core, many-core and GPUs, providing innovative software development while maintaining backward compatibility with established parallel models and legacy code. The capability and potential of KARFS to perform DNS of reacting flows with large, detailed reaction mechanisms is demonstrated with various model problems involving ignition and turbulent flame propagations with varying degrees of chemical complexities.

Direct numerical simulations of reacting flows with detailed chemistry using many-core/GPU acceleration

KAUST Repository

Hernández Pérez, Francisco E.

2018-03-29

A new direct numerical simulation (DNS) code for multi-component gaseous reacting flows has been developed at KAUST, with the state-of-the-art programming model for next generation high performance computing platforms. The code, named KAUST Adaptive Reacting Flows Solver (KARFS), employs the MPI+X programming, and relies on Kokkos for “X” for performance portability to multi-core, many-core and GPUs, providing innovative software development while maintaining backward compatibility with established parallel models and legacy code. The capability and potential of KARFS to perform DNS of reacting flows with large, detailed reaction mechanisms is demonstrated with various model problems involving ignition and turbulent flame propagations with varying degrees of chemical complexities.

"I Pay Your Salary!" Manifestations of Student Consumerism in the Classroom

Science.gov (United States)

Plunkett, Anthony D.

2011-01-01

This qualitative case study explored the Student Consumerism phenomenon as displayed by post-secondary students as perceived by their instructors. Because it was not entirely understood how post-secondary instructors react to the manifestations that occur due to Student Consumerism style of behaviors, this study examined the phenomenon from that…

A cross-sectional examination of psychological distress, positive mental health and their predictors in medical students in their clinical clerkships

Directory of Open Access Journals (Sweden)

Inge van Dijk

2017-11-01

Full Text Available Abstract Background Medical students can experience the transition from theory to clinical clerkships as stressful. Scientific literature on the mental health of clinical clerkship students is scarce and mental health is usually defined as absence of psychological distress without assessing psychological, emotional and social wellbeing, together called ‘positive mental health’. This cross-sectional study examines the prevalence of psychological distress and positive mental health and explores possible predictors in a Dutch sample of clinical clerkship students. Methods Fourth-year medical students in their first year of clinical clerkships were invited to complete an online questionnaire assessing demographics, psychological distress (Brief Symptom Inventory, positive mental health (Mental Health Continuum- SF, dysfunctional cognitions (Irrational Beliefs Inventory and dispositional mindfulness skills (Five Facet Mindfulness Questionnaire. Multiple linear regression analysis was used to explore relationships between psychological distress, positive mental health (dependent variables and demographics, dysfunctional cognitions and dispositional mindfulness skills (predictors. Results Of 454 eligible students, 406 (89% completed the assessment of whom 21% scored in the clinical range of psychological distress and 41% reported a flourishing mental health. These proportions partially overlap each other. Female students reported a significantly higher mean level of psychological distress than males. In the regression analysis the strongest predictors of psychological distress were ‘acting with awareness’ (negative and ‘worrying’ (positive. Strongest predictors of positive mental health were ‘problem avoidance’ (negative and ‘emotional irresponsibility’ (negative. Conclusions The prevalence of psychopathology in our sample of Dutch clinical clerkship students is slightly higher than in the general population. Our results support

A cross-sectional examination of psychological distress, positive mental health and their predictors in medical students in their clinical clerkships.

Science.gov (United States)

van Dijk, Inge; Lucassen, Peter L B J; van Weel, Chris; Speckens, Anne E M

2017-11-17

Medical students can experience the transition from theory to clinical clerkships as stressful. Scientific literature on the mental health of clinical clerkship students is scarce and mental health is usually defined as absence of psychological distress without assessing psychological, emotional and social wellbeing, together called 'positive mental health'. This cross-sectional study examines the prevalence of psychological distress and positive mental health and explores possible predictors in a Dutch sample of clinical clerkship students. Fourth-year medical students in their first year of clinical clerkships were invited to complete an online questionnaire assessing demographics, psychological distress (Brief Symptom Inventory), positive mental health (Mental Health Continuum- SF), dysfunctional cognitions (Irrational Beliefs Inventory) and dispositional mindfulness skills (Five Facet Mindfulness Questionnaire). Multiple linear regression analysis was used to explore relationships between psychological distress, positive mental health (dependent variables) and demographics, dysfunctional cognitions and dispositional mindfulness skills (predictors). Of 454 eligible students, 406 (89%) completed the assessment of whom 21% scored in the clinical range of psychological distress and 41% reported a flourishing mental health. These proportions partially overlap each other. Female students reported a significantly higher mean level of psychological distress than males. In the regression analysis the strongest predictors of psychological distress were 'acting with awareness' (negative) and 'worrying' (positive). Strongest predictors of positive mental health were 'problem avoidance' (negative) and 'emotional irresponsibility' (negative). The prevalence of psychopathology in our sample of Dutch clinical clerkship students is slightly higher than in the general population. Our results support conclusions of previous research that psychological distress and positive mental

Can Appreciative Inquiry Increase Positive Interactions, Student Self-Advocacy and Turn-Taking during IEP Meetings?

Science.gov (United States)

Kozik, Peter L.

2018-01-01

This comparative research study in the context of action research documents the effects of Appreciative Inquiry (AI) on positive participant interactions, student turn-taking and self-advocacy interactions during IEP meetings that focused on student transition to post-secondary outcomes. AI was implemented as a written protocol for conducting IEP…

Fostering Inclusion and Positive Physical Education Experiences for Overweight and Obese Students

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Rukavina, Paul B.; Doolittle, Sarah A.

2016-01-01

Overweight and obese students are often socially and instructionally excluded from physical education and school physical activity opportunities. This article describes teaching strategies from a study of middle school physical education teachers who are committed to providing effective teaching and positive experiences for overweight and obese…

Immunolocalization of Schistosoma mansoni and Schistosoma haematobium antigens reacting with their Egyptian snail vectors.

Science.gov (United States)

El-Dafrawy, Shadia M; Mohamed, Amira H; Hammam, Olfat A; Rabia, Ibrahim

2007-12-01

The reaction of the haemolymph and the tissue of infected intermediate hosts, Biomphalaria alexandrina and Bulinus truncatus to Schistosoma mansoni and S. haematobium antigens were investigated using the indirect immunoperoxidase technique. A new technique, Agarose cell block was used in collection of haemolymph which helped in collecting plenty of well formed cells in comparison to the ordinary one using the cytospin. Collected haemolymph and prepared tissues of uninfected and infected B. alexandria and B. truncatus were fixed and then reacted with anti-S. mansoni and anti-S. haematobium IgG polyclonal antibodies. The haemolymph and tissue of infected B. alexandrina and B. truncatus gave a positive peroxidase reaction represented by a brown colour. In haemolymph, the positive peroxidase reaction was detected mainly in the cytoplasm of the amoebocytes. In the tissue, it was detected in epithelial cells lining the tubules, male cells in the lumen of the tubules and in female oogonia cells along the periphery of the tubules. The similarity in the strength and distribution of positive reaction in B. alexandrina and B. truncates was observed as compared to control. Thus, the immunoperoxidase technique proved to be an effective indicator for the schistosome-antigen in the snails.

Relationship of self-esteem and happiness from the positive psychology among intercultural nursing students

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Marco Alberto Núñez Ramírez

2015-07-01

Full Text Available Introduction: There are contradictions on the relationship between self-esteem and happiness: it exists for some researches, for others it does not, and even some argue that self-esteem affects happiness. These variables are elementary for the practice of Nursing; however, their study is small within intercultural environments. The objective of this research is to know the association between self-esteem and happiness among Intercultural Nursing students from the positive psychology.Method: A quantitative, descriptive, transversal and correlational, research with a non-experimental design was realized, with a sample of 55 students of Intercultural Nursing. Two questionnaires were applied: the scale of Rosenberg self-esteem and happiness of Lima scale.Results: High levels of self-esteem and happiness were obtained. Through correlation of Pearson and hierarchical regression we found that self-esteem is associated in negative and positive way with certain factors of happiness; the same thing happened in the level of influence.Conclusion: In positive psychology is possible to associate variables such as self-esteem and happiness as strengths. Much more in the case of Intercultural Nursing students which have the aim to contribute to the indigenous communities development, that require nurses with favorable levels of self-esteem and the perception of subjective well-being to counteract an historical legacy of backwardness. From positive psychology is possible that this educational model will contribute to the mutual enrichment and empowerment within the work of the Intercultural Nursing.

Evaluation of HIV testing algorithms in Ethiopia: the role of the tie-breaker algorithm and weakly reacting test lines in contributing to a high rate of false positive HIV diagnoses.

Science.gov (United States)

Shanks, Leslie; Siddiqui, M Ruby; Kliescikova, Jarmila; Pearce, Neil; Ariti, Cono; Muluneh, Libsework; Pirou, Erwan; Ritmeijer, Koert; Masiga, Johnson; Abebe, Almaz

2015-02-03

In Ethiopia a tiebreaker algorithm using 3 rapid diagnostic tests (RDTs) in series is used to diagnose HIV. Discordant results between the first 2 RDTs are resolved by a third 'tiebreaker' RDT. Médecins Sans Frontières uses an alternate serial algorithm of 2 RDTs followed by a confirmation test for all double positive RDT results. The primary objective was to compare the performance of the tiebreaker algorithm with a serial algorithm, and to evaluate the addition of a confirmation test to both algorithms. A secondary objective looked at the positive predictive value (PPV) of weakly reactive test lines. The study was conducted in two HIV testing sites in Ethiopia. Study participants were recruited sequentially until 200 positive samples were reached. Each sample was re-tested in the laboratory on the 3 RDTs and on a simple to use confirmation test, the Orgenics Immunocomb Combfirm® (OIC). The gold standard test was the Western Blot, with indeterminate results resolved by PCR testing. 2620 subjects were included with a HIV prevalence of 7.7%. Each of the 3 RDTs had an individual specificity of at least 99%. The serial algorithm with 2 RDTs had a single false positive result (1 out of 204) to give a PPV of 99.5% (95% CI 97.3%-100%). The tiebreaker algorithm resulted in 16 false positive results (PPV 92.7%, 95% CI: 88.4%-95.8%). Adding the OIC confirmation test to either algorithm eliminated the false positives. All the false positives had at least one weakly reactive test line in the algorithm. The PPV of weakly reacting RDTs was significantly lower than those with strongly positive test lines. The risk of false positive HIV diagnosis in a tiebreaker algorithm is significant. We recommend abandoning the tie-breaker algorithm in favour of WHO recommended serial or parallel algorithms, interpreting weakly reactive test lines as indeterminate results requiring further testing except in the setting of blood transfusion, and most importantly, adding a confirmation test

Birefringence characteristics in sperm heads allow for the selection of reacted spermatozoa for intracytoplasmic sperm injection.

Science.gov (United States)

Gianaroli, Luca; Magli, M Cristina; Ferraretti, Anna P; Crippa, Andor; Lappi, Michela; Capitani, Serena; Baccetti, Baccio

2010-02-01

To verify clinical outcome after injection of spermatozoa that have undergone the acrosome reaction (reacted spermatozoa) vs. those still having an intact acrosome (nonreacted spermatozoa). Prospective, randomized study. Reproductive Medicine Unit, Italian Society for the Study of Reproductive Medicine, Bologna, Italy. According to a prospective randomization including 71 couples with severe male factor infertility, intracytoplasmic sperm injection (ICSI) was performed under polarized light that permitted analysis of the pattern of birefringence in the sperm head. Twenty-three patients had their oocytes injected with reacted spermatozoa, 26 patient's oocytes were injected with nonreacted spermatozoa, and in 22 patients both reacted and nonreacted spermatozoa were injected. Intracytoplasmic sperm injection was performed under polarized light to selectively inject acrosome-reacted and acrosome-nonreacted spermatozoa. Rates of fertilization, cleavage, pregnancy, implantation, and ongoing implantation. There was no effect on the fertilizing capacity and embryo development of either type of sperm, whereas the implantation rate was higher in oocytes injected with reacted spermatozoa (39.0%) vs. those injected with nonreacted spermatozoa (8.6%). The implantation rate was 24.4% in the group injected with both reacted and nonreacted spermatozoa. The delivery rate per cycle followed the same trend. Spermatozoa that have undergone the acrosome reaction seem to be more prone to supporting the development of viable ICSI embryos. Copyright 2010 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.

Second law analysis of a reacting temperature dependent viscous ...

African Journals Online (AJOL)

In this paper, entropy generation during the flow of a reacting viscous fluid through an inclined Channel with isothermal walls are investigated. The coupled energy and momentum equations were solved numerically. Previous results in literature (Adesanya et al 2006 [[17]) showed both velocity and temperature have two ...

Differing Event-Related Patterns of Gamma-Band Power in Brain Waves of Fast- and Slow-Reacting Subjects

Science.gov (United States)

1994-05-01

Wilhelm Wundt proposed that there are two types of subjects in sim- ple RT experiments: fast-reacting subjects, who respond before they fully...quickly as possible to auditory stimuli. This result appears to confirm long-standing speculations of Wundt that fast- and slow-reacting subjects...accord with the hypothesis of Wundt and others that slower ("sensorial") responders wait to fully perceive a stimulus and then react to their perception

Design of the digitizing beam position limit detector

International Nuclear Information System (INIS)

Merl, R.

1998-01-01

The Digitizing Beam Position Limit Detector (DBPLD) is designed to identify and react to beam missteering conditions in the Advanced Photon Source (APS) storage ring. The high power of the insertion devices requires these missteering conditions to result in a beam abort in less than 2 milliseconds. Commercially available beam position monitors provide a voltage proportional to beam position immediately upstream and downstream of insertion devices. The DBPLD is a custom VME board that digitizes these voltages and interrupts the heartbeat of the APS machine protection system when the beam position exceeds its trip limits

Formation of positive motivation as the basis of students will qualities’ perfection in physical culture practicing

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I.O. Dudnyk

2015-06-01

Full Text Available Purpose: to theoretically substantiate and test experimentally pedagogic conditions of positive motivation’s formation as the basis for students will and physical qualities’ perfection in physical culture practicing. Material: 244 first year students participated in experiment. At the beginning and at the end of experiment levels of manifestation of students’ will and physical qualities were assessed. Results: we have proved successfulness of will training if this process is naturally coincides with formation of positive motivation and perfection of motor fitness. It was found that motivation for physical culture practicing result from different demands: demand in motion, demand in fulfillment of student’s duties and demand in competition functioning. Conclusions: we have offered the following pedagogic conditions: application of game and competition methods: setting of appropriate for students tasks of training; usage of sufficient sport equipment and apparatuses; forcing of students for independent physical culture practicing through system of encouragement.

Constructing a Professional: Gendered Knowledge in the (Self-)Positioning of Skin and Spa Therapy Students

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Bredlöv, Eleonor

2017-01-01

This study outlines the self-positioning of skin and spa therapy students. More specifically, it focuses how they position themselves as professionals in terms of knowledge, and how gender is at play throughout this process. Drawing on a poststructural approach, inspired by Foucault and feminist theory, regularities of description and…

Study on flow characteristics of chemically reacting liquid jet

International Nuclear Information System (INIS)

Hong Seon Dae; Okamoto, Koji; Takata, Takashi; Yamaguchi, Akira

2004-07-01

Tube rupture accidents in steam generators of sodium-cooled fast breeder reactors are important for safety because the rupture may propagates to neighboring tubes due to sodium-water reaction. In order to clarify the thermal-hydraulic phenomena in the accidents, the flow pattern and the interface in multi-phase flow must be investigated. The JNC cooperative research scheme on the nuclear fuel cycle with the University of Tokyo has been carried to develop a simultaneous measurement system of concentration and velocity profiles and to evaluate influence of chemical reaction on mixing phenomena. In the experiments, aqueous liquor of acetic acid and ammonium hydroxide are selected as a simulant fluid instead of liquid sodium and water vapor. The following conclusions are obtained in this research. Laser Induced Fluorescence (LIF) technique was adopted to measure reacting zone and pH distribution in chemically reacting liquid round free jet. As a result, it was found that the chemical reaction, which took place at the interface between the jet and outer flow, suppressed the mixing phenomenon (in 2001 research). Dynamic Particle Image Velocimetry (PIV) method was developed to measure instantaneous velocity profile with high temporal resolution. In the Dynamic PIV, a high-speed video camera coupled with a high-speed laser pulse generator was implemented. A time-line trend of interfacial area in the free jet was investigated with the Dynamic PIV. This technique was also applied to a complicated geometry (in 2002 research). A new algorithms for image analysis was developed to evaluated the Dynamic PIV data in detail. The characteristics of the mixing phenomenon with reacting jet such as the turbulent kinetic energy and the Reynolds stress were estimated in a spatial and temporal spectrum (in 2003 research). (author)

Motivating Students through Positive Learning Experiences: A Comparison of Three Learning Designs for Computer Programming Courses

Science.gov (United States)

Lykke, Marianne; Coto, Mayela; Jantzen, Christian; Mora, Sonia; Vandel, Niels

2015-01-01

Based on the assumption that wellbeing, positive emotions and engagement influence motivation for learning, the aim of this paper is to provide insight into students' emotional responses to and engagement in different learning designs. By comparing students' reports on the experiential qualities of three different learning designs, their…

[A surface reacted layer study of titanium-zirconium alloy after dental casting].

Science.gov (United States)

Zhang, Y; Guo, T; Li, Z; Li, C

2000-10-01

To investigate the influence of the mold temperature on the surface reacted layer of Ti-Zr alloy castings. Ti-Zr alloy was casted into a mold which was made of a zircon (ZrO2.SiO2) for inner coating and a phosphate-bonded material for outer investing with a casting machine (China) designed as vacuum, pressure and centrifuge. At three mold temperatures (room temperature, 300 degrees C, 600 degrees C) the Ti-Zr alloy was casted separately. The surface roughness of the castings was calculated by instrument of smooth finish (China). From the surface to the inner part the Knoop hardness and thickness in reacted layer of Ti-Zr alloy casting was measured. The structure of the surface reacted layer was analysed by SEM. Elemental analyses of the interfacial zone of the casting was made by element line scanning observation. The surface roughness of the castings was increased significantly with the mold temperature increasing. At a higher mold temperature the Knoop hardness of the reactive layer was increased. At the three mold temperature the outmost surface was very hard, and microhardness data decreased rapidly where they reached constant values. The thickness was about 85 microns for castings at room temperature and 300 degrees C, 105 microns for castings at 600 degrees C. From the SEM micrograph of the Ti-Zr alloy casting, the surface reacted layer could be divided into three different layers. The first layer was called non-structure layer, which thickness was about 10 microns for room temperature group, 20 microns for 300 degrees C and 25 microns for 600 degrees C. The second layer was characterized by coarse-grained acicular crystal, which thickness was about 50 microns for three mold temperatures. The third layer was Ti-Zr alloy. The element line scanning showed non-structure layer with higher level of element of O, Al, Si and Zr, The higher the mold temperature during casting, the deeper the Si permeating and in the second layer the element Si could also be found

Experimental thermodynamics experimental thermodynamics of non-reacting fluids

CERN Document Server

Neindre, B Le

2013-01-01

Experimental Thermodynamics, Volume II: Experimental Thermodynamics of Non-reacting Fluids focuses on experimental methods and procedures in the study of thermophysical properties of fluids. The selection first offers information on methods used in measuring thermodynamic properties and tests, including physical quantities and symbols for physical quantities, thermodynamic definitions, and definition of activities and related quantities. The text also describes reference materials for thermometric fixed points, temperature measurement under pressures, and pressure measurements. The publicatio

Direct numerical simulation of turbulent, chemically reacting flows

Science.gov (United States)

Doom, Jeffrey Joseph

This dissertation: (i) develops a novel numerical method for DNS/LES of compressible, turbulent reacting flows, (ii) performs several validation simulations, (iii) studies auto-ignition of a hydrogen vortex ring in air and (iv) studies a hydrogen/air turbulent diffusion flame. The numerical method is spatially non-dissipative, implicit and applicable over a range of Mach numbers. The compressible Navier-Stokes equations are rescaled so that the zero Mach number equations are discretely recovered in the limit of zero Mach number. The dependent variables are co--located in space, and thermodynamic variables are staggered from velocity in time. The algorithm discretely conserves kinetic energy in the incompressible, inviscid, non--reacting limit. The chemical source terms are implicit in time to allow for stiff chemical mechanisms. The algorithm is readily applicable to complex chemical mechanisms. Good results are obtained for validation simulations. The algorithm is used to study auto-ignition in laminar vortex rings. A nine species, nineteen reaction mechanism for H2/air combustion proposed by Mueller et al. [37] is used. Diluted H 2 at ambient temperature (300 K) is injected into hot air. The simulations study the effect of fuel/air ratio, oxidizer temperature, Lewis number and stroke ratio (ratio of piston stroke length to diameter). Results show that auto--ignition occurs in fuel lean, high temperature regions with low scalar dissipation at a 'most reactive' mixture fraction, zeta MR (Mastorakos et al. [32]). Subsequent evolution of the flame is not predicted by zetaMR; a most reactive temperature TMR is defined and shown to predict both the initial auto-ignition as well as subsequent evolution. For stroke ratios less than the formation number, ignition in general occurs behind the vortex ring and propagates into the core. At higher oxidizer temperatures, ignition is almost instantaneous and occurs along the entire interface between fuel and oxidizer. For stroke

The Effects of a School-Wide Positive Behavior Intervention Support Program on the Intrinsic Motivation of Third Grade Students

Science.gov (United States)

Amis, Sarah Anne

2013-01-01

This research project sought to determine the effects of a School-Wide Positive Behavior Intervention Support program (SWPBIS) on the intrinsic motivation of third grade students in regard to student achievement, student behavior, and teacher perception. Students of two intermediate schools served as the treatment group and control group, and were…

The effects of positive cognitions on the relationship between alienation and resourcefulness in nursing students in Egypt.

Science.gov (United States)

Bekhet, Abir K; ElGuenidi, Mervat; Zauszniewski, Jaclene A

2011-01-01

Alienation is a subjective state, a feeling of being a stranger, as if one were not one's normal self. It is also a sense of homelessness; a feeling of uneasiness or discomfort, which signifies the person's exclusion from social or cultural participation. Alienation can adversely affect healthy functioning of nursing students. Nursing students are the adolescents of today and the nurses of tomorrow who will deal with human behavior, and their psychological well-being will be important in managing their clients' conditions. Healthy nursing students are likely to become healthy nurses who can then model and promote healthy lifestyles for their patients. This study looked at whether the effects of alienation on adolescents' resourcefulness are influenced by positive cognitions. Zauszniewski's theory of resourcefulness, which is based on the conceptualization of two forms of resourcefulness: personal (self-help) and social (help-seeking) resourcefulness, served as the theoretical framework for the study. A descriptive, correlational, cross-sectional design was used to examine hypothesized relationships among the study variables in a convenience sample of 170 first-year nursing students aged 17 to 20 years. Results showed that positive cognitions had a moderating and a partial mediating effect on the relationship between alienation and resourcefulness. It is imperative for nurse educators to generate interventions to enhance positive cognitions among nursing students.

Modern Prejudice and Same-Sex Parenting: Shifting Judgments in Positive and Negative Parenting Situations

Science.gov (United States)

MASSEY, SEAN G.; MERRIWETHER, ANN M.; GARCIA, JUSTIN R.

2013-01-01

The current study compares the effects of traditional and modern anti-homosexual prejudice on evaluations of parenting practices of same-sex and opposite-sex couples. Undergraduate university student participants (N = 436) completed measures of traditional and modern anti-homosexual prejudice and responded to a vignette describing a restaurant scene in which parents react to their child’s undesirable behavior. The parents’ sexual orientation and the quality of their parenting (positive or negative quality) were varied randomly. It was predicted that participants who score higher in modern prejudice would rate the negative parenting behaviors of same-sex parents more negatively than similar behaviors in opposite-sex parents. It was also predicted that this modern prejudice effect would be most pronounced for male participants. Both hypotheses were supported. PMID:23667347

Mass sports of students and cadets which server military contract in positions of officers

Directory of Open Access Journals (Sweden)

Anastasia Bondar

2015-12-01

Full Text Available Purpose: study of features of organization of mass sports of students and cadets which server military contract in positions of officers. Material and Methods: analysis of literary sources and documents, analysis of the systems, questioning (questionnaire, methods of the mathematical processing of data. In a questionnaire 97 respondents – 29 cadets of a 5 course and 68 students of 4 courses of military-legal faculty of the Yaroslav Mudryi National law university. Results: 69% cadets and only 35% students are engaged in the different types of motive activity in free time, here 48% cadets and 43% students elect the playing types of sport (football, volley-ball, basket-ball, 65,5% cadets and 48,5% students go in for sports for self-perfection and self-realization, here 45% cadets and 32% students plan necessarily to prolong to be engaged in the select type of sport upon termination of studies in higher educational establishment. Conclusions: the Study 4th Year Students And Students Of The 5th Year Of Military Faculty Of Law Has Shown That The Students Serious About Their Chosen Profession And Understand The Importance Of Physical Fitness In A Future Service, They Are Able To Objectively Assess The Level Of Their Physical Readiness And Are Ready For Further Self-Improvement

Whole-School Positive Behaviour Support: Effects on Student Discipline Problems and Academic Performance

Science.gov (United States)

Luiselli, James K.; Putnam, Robert F.; Handler, Marcie W.; Feinberg, Adam B.

2005-01-01

Many students attending public schools exhibit discipline problems such as disruptive classroom behaviour, vandalism, bullying, and violence. Establishing effective discipline practices is critical to ensure academic success and to provide a safe learning environment. In this article, we describe the effects of whole-school positive behaviour…

Does the StartReact Effect Apply to First-Trial Reactive Movements?

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Katrin Sutter

Full Text Available StartReact is the acceleration of reaction time by a startling acoustic stimulus (SAS. The SAS is thought to release a pre-prepared motor program. Here, we investigated whether the StartReact effect is applicable to the very first trial in a series of repeated unpractised single-joint movements.Twenty healthy young subjects were instructed to perform a rapid ankle dorsiflexion movement in response to an imperative stimulus. Participants were divided in two groups of ten. Both groups performed 17 trials. In one group a SAS (116 dB was given in the first trial, whereas the other group received a non-startling sound (70 dB as the first imperative stimulus. In the remaining 16 trials, the SAS was given as the imperative stimulus in 25% of the trials in both groups. The same measurement was repeated one week later, but with the first-trial stimuli counterbalanced between groups.When a SAS was given in the very first trial, participants had significantly shorter onset latencies compared to first-trial responses to a non-startling stimulus. Succeeding trials were significantly faster compared to the first trial, both for trials with and without a SAS. However, the difference between the first and succeeding trials was significantly larger for responses to a non-startling stimulus compared to responses triggered by a SAS. SAS-induced acceleration in the first trial of the second session was similar to that in succeeding trials of session 1.The present results confirm that the StartReact phenomenon also applies to movements that have not yet been practiced in the experimental context. The excessive SAS-induced acceleration in the very first trial may be due to the absence of integration of novel context-specific information with the existing motor memory for movement execution. Our findings demonstrate that StartReact enables a rapid release of motor programs in the very first trial also without previous practice, which might provide a behavioural

The SEEK Program: A SEEK Student's View. Community Issues, July 1970.

Science.gov (United States)

Robinson, Jackie

The Search for Elevation through Education and Knowledge (SEEK) experience at Queens College has been a hectic and strained undertaking, culminating in a confrontation between black and white students which gained national attention. The white community at Queens reacted negatively towards SEEK students, faculty, and counseling staff. The…

Direct numerical simulation of turbulent reacting flows

Energy Technology Data Exchange (ETDEWEB)

Chen, J.H. [Sandia National Laboratories, Livermore, CA (United States)

1993-12-01

The development of turbulent combustion models that reflect some of the most important characteristics of turbulent reacting flows requires knowledge about the behavior of key quantities in well defined combustion regimes. In turbulent flames, the coupling between the turbulence and the chemistry is so strong in certain regimes that is is very difficult to isolate the role played by one individual phenomenon. Direct numerical simulation (DNS) is an extremely useful tool to study in detail the turbulence-chemistry interactions in certain well defined regimes. Globally, non-premixed flames are controlled by two limiting cases: the fast chemistry limit, where the turbulent fluctuations. In between these two limits, finite-rate chemical effects are important and the turbulence interacts strongly with the chemical processes. This regime is important because industrial burners operate in regimes in which, locally the flame undergoes extinction, or is at least in some nonequilibrium condition. Furthermore, these nonequilibrium conditions strongly influence the production of pollutants. To quantify the finite-rate chemistry effect, direct numerical simulations are performed to study the interaction between an initially laminar non-premixed flame and a three-dimensional field of homogeneous isotropic decaying turbulence. Emphasis is placed on the dynamics of extinction and on transient effects on the fine scale mixing process. Differential molecular diffusion among species is also examined with this approach, both for nonreacting and reacting situations. To address the problem of large-scale mixing and to examine the effects of mean shear, efforts are underway to perform large eddy simulations of round three-dimensional jets.

Low Mach number asymptotics for reacting compressible fluid flows

Czech Academy of Sciences Publication Activity Database

Feireisl, Eduard; Petzeltová, Hana

2010-01-01

Roč. 26, č. 2 (2010), s. 455-480 ISSN 1078-0947 R&D Projects: GA ČR GA201/05/0164 Institutional research plan: CEZ:AV0Z10190503 Keywords : low Mach number * Navier-Stokes-Fourier system * reacting fluids Subject RIV: BA - General Mathematics Impact factor: 0.986, year: 2010 http://www.aimsciences.org/journals/displayArticles.jsp?paperID=4660

Attitudes toward teen mothers among nursing students and psychometric evaluation of Positivity Toward Teen Mothers scale.

Science.gov (United States)

Kim, Son Chae; Burke, Leanne; Sloan, Chris; Barnett, Shannon

2013-09-01

To prepare future nurses who can deliver high quality nursing care to teen mothers, a better understanding of the nursing students' perception of teen mothers is needed. A descriptive cross-sectional study was conducted among 228 nursing students to evaluate the psychometric properties of the Positivity Toward Teen Mothers (PTTM) scale, to explore nursing students' general empathy and attitudes toward teen mothers, and to investigate the predictors of nursing students' attitudes toward teen mothers. Principal component factor analysis with varimax rotation resulted in a 19-item PTTM-Revised scale with Non-judgmental and Supportive subscales. Cronbach's alphas for the subscales were 0.84 and 0.69, respectively, and 0.87 for the total scale. Simultaneous multiple regression models showed that general empathy and having a teen mother in the family or as an acquaintance were significant predictors of positive attitudes toward teen mothers, whereas age was a significant negative predictor. The PTTM-Revised scale is a promising instrument for assessing attitudes toward teen mothers. Copyright © 2012 Elsevier Ltd. All rights reserved.

The Pedagogical Benefits of Enacting Positive Psychology Practices through a Student-Faculty Partnership Approach to Academic Development

Science.gov (United States)

Cook-Sather, Alison; Schlosser, Joel Alden; Sweeney, Abigail; Peterson, Laurel M.; Cassidy, Kimberly Wright; Colón García, Ana

2018-01-01

Academic development that supports the enactment of positive psychology practices through student-faculty pedagogical partnership can increase faculty confidence and capacity in their first year in a new institution. When student partners practice affirmation and encouragement of strengths-based growth, processes of faculty acclimation and…

Testing Theoretical Relationships: Factors Influencing Positive Health Practices (PHP) in Filipino College Students

Science.gov (United States)

Ayres, Cynthia; Mahat, Ganga; Atkins, Robert

2013-01-01

Objective: To examine variables influencing the positive health practices (PHP) of Filipino college students to gain a better understanding of health practices in this ethnic/racial group. Cross-sectional study tested theoretical relationships postulated among (a) PHP, (b) social support (SS), (c) optimism, and (d) acculturation. Participants: A…

They Just Respect You for Who You Are: Contributors to Educator Positive Youth Development Promotion for Somali, Latino, and Hmong Students.

Science.gov (United States)

Allen, Michele L; Rosas-Lee, Maira; Ortega, Luis; Hang, Mikow; Pergament, Shannon; Pratt, Rebekah

2016-02-01

Youth from immigrant communities may experience barriers to connecting with schools and teachers, potentially undermining academic achievement and healthy youth development. This qualitative study aimed to understand how educators serving Somali, Latino, and Hmong (SLH) youth can best promote educator-student connectedness and positive youth development, by exploring the perspectives of teachers, youth workers, and SLH youth, using a community based participatory research approach. We conducted four focus groups with teachers, 18 key informant interviews with adults working with SLH youth, and nine focus groups with SLH middle and high school students. Four themes emerged regarding facilitators to educators promoting positive youth development in schools: (1) an authoritative teaching approach where teachers hold high expectations for student behavior and achievement, (2) building trusting educator-student relationships, (3) conveying respect for students as individuals, and (4) a school infrastructure characterized by a supportive and inclusive environment. Findings suggest a set of skills and educator-student interactions that may promote positive youth development and increase student-educator connectedness for SLH youth in public schools.

Negative Thinking versus Positive Thinking in a Singaporean Student Sample: Relationships with Psychological Well-Being and Psychological Maladjustment

Science.gov (United States)

Wong, Shyh Shin

2012-01-01

This study examines the relationships of positive thinking versus negative thinking with psychological well-being and psychological maladjustment. Three hundred and ninety-eight undergraduate students from Singapore participated in this study. First, positive thinking were positively correlated with indicators psychological well-being--life…

Molecular Simulation of Reacting Systems; TOPICAL

International Nuclear Information System (INIS)

THOMPSON, AIDAN P.

2002-01-01

The final report for a Laboratory Directed Research and Development project entitled, Molecular Simulation of Reacting Systems is presented. It describes efforts to incorporate chemical reaction events into the LAMMPS massively parallel molecular dynamics code. This was accomplished using a scheme in which several classes of reactions are allowed to occur in a probabilistic fashion at specified times during the MD simulation. Three classes of reaction were implemented: addition, chain transfer and scission. A fully parallel implementation was achieved using a checkerboarding scheme, which avoids conflicts due to reactions occurring on neighboring processors. The observed chemical evolution is independent of the number of processors used. The code was applied to two test applications: irreversible linear polymerization and thermal degradation chemistry

Positive School Climate: What It Looks Like and How It Happens. Nurturing Positive School Climate for Student Learning and Professional Growth

Science.gov (United States)

Smith, Tami Kopischke; Connolly, Faith; Pryseski, Charlene

2014-01-01

The term "school climate" has been around for more than a hundred years to explore the idea of school environmental or contextual factors that might have an impact on student learning and academic success. During the past three decades there has been growing research to support the importance of a positive school climate in promoting…

Students with Chronic Health Conditions: The Role of The School Nurse. Position Statement

Science.gov (United States)

Combe, Laurie G.; Mattern, Cheryl; Fleming, Laurie; Killingsworth, Suzie

2017-01-01

It is the position of the National Association of School Nurses (NASN) that to optimize student health, safety, and learning, a professional registered school nurse (hereinafter referred to as school nurse) be present all day, every day. The American Academy of Pediatrics' Council on School Health (2016) highlights the important role school nurses…

Students' Use of Extra-Curricular Activities for Positional Advantage in Competitive Job Markets

Science.gov (United States)

Roulin, Nicolas; Bangerter, Adrian

2013-01-01

With the rise of mass higher education, competition between graduates in the labour market is increasing. Students are aware that their degree will not guarantee them a job and realise they should add value and distinction to their credentials to achieve a positional advantage. Participation in extra-curricular activities (ECAs) is one such…

Development and Evaluation of a Positive Youth Development Course for University Students in Hong Kong

Directory of Open Access Journals (Sweden)

Daniel T. L. Shek

2012-01-01

Full Text Available With higher education, university graduates are important elements of the labor force in knowledge-based economies. With reference to the mental health and developmental problems in university students, there is a need to review university’s role in nurturing holistic development of students. Based on the positive youth development approach, it is argued that promoting intrapersonal competencies is an important strategy to facilitate holistic development of young people in Hong Kong. In The Hong Kong Polytechnic University, a course entitled Tomorrow’s Leader focusing on positive youth development constructs to promote student well-being will be offered on a compulsory basis starting from 2012/13 academic year under the new undergraduate curriculum structure. The proposed course was piloted in 2010/11 school year. Different evaluation strategies, including objective outcome evaluation, subjective outcome evaluation, process evaluation, and qualitative evaluation, are being carried out to evaluate the developed course. Preliminary evaluation findings based on the piloting experience in 2010/11 academic year are presented in this paper.

Suspicion of Motives Predicts Minorities' Responses to Positive Feedback in Interracial Interactions.

Science.gov (United States)

Major, Brenda; Kunstman, Jonathan W; Malta, Brenna D; Sawyer, Pamela J; Townsend, Sarah S M; Mendes, Wendy Berry

2016-01-01

Strong social and legal norms in the United States discourage the overt expression of bias against ethnic and racial minorities, increasing the attributional ambiguity of Whites' positive behavior to ethnic minorities. Minorities who suspect that Whites' positive overtures toward minorities are motivated more by their fear of appearing racist than by egalitarian attitudes may regard positive feedback they receive from Whites as disingenuous. This may lead them to react to such feedback with feelings of uncertainty and threat. Three studies examined how suspicion of motives relates to ethnic minorities' responses to receiving positive feedback from a White peer or same-ethnicity peer (Experiment 1), to receiving feedback from a White peer that was positive or negative (Experiment 2), and to receiving positive feedback from a White peer who did or did not know their ethnicity (Experiment 3). As predicted, the more suspicious Latinas were of Whites' motives for behaving positively toward minorities in general, the more they regarded positive feedback from a White peer who knew their ethnicity as disingenuous and the more they reacted with cardiovascular reactivity characteristic of threat/avoidance, increased feelings of stress, heightened uncertainty, and decreased self-esteem. We discuss the implications for intergroup interactions of perceptions of Whites' motives for nonprejudiced behavior.

Suspicion of Motives Predicts Minorities’ Responses to Positive Feedback in Interracial Interactions

Science.gov (United States)

Major, Brenda; Kunstman, Jonathan W.; Malta, Brenna D.; Sawyer, Pamela J.; Townsend, Sarah S. M.; Mendes, Wendy Berry

2015-01-01

Strong social and legal norms in the United States discourage the overt expression of bias against ethnic and racial minorities, increasing the attributional ambiguity of Whites’ positive behavior to ethnic minorities. Minorities who suspect that Whites’ positive overtures toward minorities are motivated more by their fear of appearing racist than by egalitarian attitudes may regard positive feedback they receive from Whites as disingenuous. This may lead them to react to such feedback with feelings of uncertainty and threat. Three studies examined how suspicion of motives relates to ethnic minorities’ responses to receiving positive feedback from a White peer or same-ethnicity peer (Experiment 1), to receiving feedback from a White peer that was positive or negative (Experiment 2), and to receiving positive feedback from a White peer who did or did not know their ethnicity (Experiment 3). As predicted, the more suspicious Latinas were of Whites’ motives for behaving positively toward minorities in general, the more they regarded positive feedback from a White peer who knew their ethnicity as disingenuous and the more they reacted with cardiovascular reactivity characteristic of threat/avoidance, increased feelings of stress, heightened uncertainty, and decreased self-esteem. We discuss the implications for intergroup interactions of perceptions of Whites’ motives for nonprejudiced behavior. PMID:26688594

Rule-Based Multidisciplinary Tool for Unsteady Reacting Real-Fluid Flows, Phase I

Data.gov (United States)

National Aeronautics and Space Administration — A design and analysis computational tool is proposed for simulating unsteady reacting flows in combustor devices used in reusable launch vehicles. Key aspects...

Choking under Pressure: When an Additional Positive Stereotype Affects Performance for Domain Identified Male Mathematics Students

Science.gov (United States)

Rosenthal, Harriet E. S.; Crisp, Richard J.

2007-01-01

This research aimed to establish if the presentation of two positive stereotypes would result in choking under pressure for identified male mathematics students. Seventy-five 16 year old men, who had just commenced their AS-level study, were either made aware of their gender group membership (single positive stereotype), their school group…

Double shock experiments and reactive flow modeling on LX-17 to understand the reacted equation of state

International Nuclear Information System (INIS)

Vandersall, Kevin S; Garcia, Frank; Fried, Laurence E; Tarver, Craig M

2014-01-01

Experimental data from measurements of the reacted state of an energetic material are desired to incorporate reacted states in modeling by computer codes. In a case such as LX-17 (92.5% TATB and 7.5% Kel-F by weight), where the time dependent kinetics of reaction is still not fully understood and the reacted state may evolve over time, this information becomes even more vital. Experiments were performed to measure the reacted state of LX-17 using a double shock method involving the use of two flyer materials (with known properties) mounted on the projectile that send an initial shock through the material close to or above the Chapman-Jouguet (CJ) state followed by a second shock at a higher magnitude into the detonated material. By measuring the parameters of the first and second shock waves, information on the reacted state can be obtained. The LX-17 detonation reaction zone profiles plus the arrival times and amplitudes of reflected shocks in LX-17 detonation reaction products were measured using Photonic Doppler Velocimetry (PDV) probes and an aluminum foil coated LiF window. A discussion of this work will include the experimental parameters, velocimetry profiles, data interpretation, reactive CHEETAH and Ignition and Growth modeling, as well as detail on possible future experiments.

Enhancing the Students' Positive Attitude in Learning Business English by Using Technology

Science.gov (United States)

Agustina, Lia

2017-01-01

Many research findings have stated that the use of technology in EFL classroom results invaluable achievements and develops positive attitudes. Technology may integrate sounds, pictures, motions, and colors that fi ure out a natural picture of real life. The aim of the study was to enhance the students' attitude toward learning English by using…

Positive Psychology in Cross-Cultural Narratives: Mexican Students Discover Themselves While Learning Chinese

Science.gov (United States)

Oxford, Rebecca L.; Cuéllar, Lourdes

2014-01-01

Using the principles of positive psychology and the tools of narrative research, this article focuses on the psychology of five language learners who crossed cultural and linguistic borders. All five were university students learning Chinese in Mexico, and two of them also studied Chinese in China. The grounded theory approach was used to analyze…

Numerical simulation of low Mach number reacting flows

International Nuclear Information System (INIS)

Bell, J B; Aspden, A J; Day, M S; Lijewski, M J

2007-01-01

Using examples from active research areas in combustion and astrophysics, we demonstrate a computationally efficient numerical approach for simulating multiscale low Mach number reacting flows. The method enables simulations that incorporate an unprecedented range of temporal and spatial scales, while at the same time, allows an extremely high degree of reaction fidelity. Sample applications demonstrate the efficiency of the approach with respect to a traditional time-explicit integration method, and the utility of the methodology for studying the interaction of turbulence with terrestrial and astrophysical flame structures

REAC/TS Radiation Accident Registry: An Overview

Energy Technology Data Exchange (ETDEWEB)

Doran M. Christensen, DO, REAC/TS Associate Director and Staff Physician Becky Murdock, REAC/TS Registry and Health Physics Technician

2012-12-12

Over the past four years, REAC/TS has presented a number of case reports from its Radiation Accident Registry. Victims of radiological or nuclear incidents must meet certain dose criteria for an incident to be categorized as an “accident” and be included in the registry. Although the greatest numbers of “accidents” in the United States that have been entered into the registry involve radiation devices, the greater percentage of serious accidents have involved sealed sources of one kind or another. But if one looks at the kinds of accident scenarios that have resulted in extreme consequence, i.e., death, the greater share of deaths has occurred in medical settings.

Academic stress and positive affect: Asian value and self-worth contingency as moderators among Chinese international students.

Science.gov (United States)

Liao, Kelly Yu-Hsin; Wei, Meifen

2014-01-01

The theoretical model proposed by Berry and colleagues (Berry, 1997; Berry, Kim, Minde, & Mok, 1987) highlights the importance of identifying moderators in the acculturation process. Accordingly, the current study examined the Asian cultural value of family recognition through achievement (FRTA) and contingency of self-worth on academic competence (CSW-AC) as moderators in the association between academic stress and positive affect among Chinese international students. A total of 370 Chinese international students completed online surveys. Results from a hierarchical regression indicated that while academic stress was negatively associated with positive affect, FRTA was positively associated with positive affect. In other words, those with high academic stress reported a lower level of positive affect. However, individuals who endorsed high levels of FRTA reported a higher level of positive affect. In addition, results also revealed a significant interaction between academic stress and CSW-AC on positive affect. Thus, the study's finding supported the moderator role of CSW-AC. Simple effect analyses were conducted to examine the significant interaction. The results showed that higher levels of CSW-AC strengthened the negative association between academic stress and positive affect but lower levels of CSW-AC did not. Future research directions and implications are discussed.

The Relationship between Identity-Related Constructs and Positive Mental Health in Black College Students

Science.gov (United States)

Mushonga, Dawnsha R.

2017-01-01

This cross-sectional, exploratory study examined positive mental health (PMH) in 156 Black college students, ages 18-25, attending Historically Black Colleges and Universities (HBCUs) and Predominantly White Institutions (PWIs). In addition, identity-related constructs such as spirituality, self-esteem, social support, life satisfaction, racial…

Reacting in Literary Studies: Crossing the Threshold from Quality to Meaning

Science.gov (United States)

Heinert, Jennifer; Chick, Nancy L.

2017-01-01

In this essay, the authors extend their ongoing conversations within the overarching project on "critique as signature pedagogy in the arts and humanities" by considering how the position of literary studies within this broader context may explain some of the difficulties students have with a cornerstone activity of the undergraduate…

Emotional Creativity as Predictor of Intrinsic Motivation and Academic Engagement in University Students: The Mediating Role of Positive Emotions.

Science.gov (United States)

Oriol, Xavier; Amutio, Alberto; Mendoza, Michelle; Da Costa, Silvia; Miranda, Rafael

2016-01-01

Emotional creativity (EC) implies experiencing a complex emotional life, which is becoming increasingly necessary in societies that demand innovation and constant changes. This research studies the relation of EC as a dispositional trait with intrinsic motivation (IM) and academic engagement (AE). A sample of 428 university Chilean students, 36.5% men and 63.5% women, with ages from 18 to 45 years-old (M = 20.37; DT = 2.71). Additionally, the mediating function of class-related positive emotions in this relation is explored. The obtained data indicate that developing high levels of dispositional EC enhances the activation of positive emotions, such as gratitude, love and hope, in the classroom. Furthermore, EC predicts IM and AE of university students by the experience of positive emotions. These results compel us to be aware of the importance that university students can understand the complexity of the emotional processes they undergo. A greater control of these emotions would allow students to maintain higher levels of interest in their studies at the different educational stages and to avoid the risk of school failure.

French Second-Language Teacher Candidates' Positions towards Allophone Students and Implications for Inclusion

Science.gov (United States)

Mady, Callie; Arnett, Katy; Muilenburg, Lin Y.

2017-01-01

In Canada, there is a rising population of K-12 students who speak neither French nor English at home, and who are sometimes expected to learn both of the country's official languages in school. Applying the lenses of critical theory and positioning theory, this study uses questionnaire and interview data to frame considerations to explore how…

Instilling positive beliefs about disabilities: pilot testing a novel experiential learning activity for rehabilitation students.

Science.gov (United States)

Silverman, Arielle M; Pitonyak, Jennifer S; Nelson, Ian K; Matsuda, Patricia N; Kartin, Deborah; Molton, Ivan R

2018-05-01

To develop and test a novel impairment simulation activity to teach beginning rehabilitation students how people adapt to physical impairments. Masters of Occupational Therapy students (n = 14) and Doctor of Physical Therapy students (n = 18) completed the study during the first month of their program. Students were randomized to the experimental or control learning activity. Experimental students learned to perform simple tasks while simulating paraplegia and hemiplegia. Control students viewed videos of others completing tasks with these impairments. Before and after the learning activities, all students estimated average self-perceived health, life satisfaction, and depression ratings among people with paraplegia and hemiplegia. Experimental students increased their estimates of self-perceived health, and decreased their estimates of depression rates, among people with paraplegia and hemiplegia after the learning activity. The control activity had no effect on these estimates. Impairment simulation can be an effective way to teach rehabilitation students about the adaptations that people make to physical impairments. Positive impairment simulations should allow students to experience success in completing activities of daily living with impairments. Impairment simulation is complementary to other pedagogical methods, such as simulated clinical encounters using standardized patients. Implication of Rehabilitation It is important for rehabilitation students to learn how people live well with disabilities. Impairment simulations can improve students' assessments of quality of life with disabilities. To be beneficial, impairment simulations must include guided exposure to effective methods for completing daily tasks with disabilities.

Going positive: The effects of negative and positive advertising on candidate success and voter turnout

Directory of Open Access Journals (Sweden)

Liam C Malloy

2016-01-01

Full Text Available Given the depth of research on negative advertising in campaigns, scholars have wondered why candidates continue to attack their opponents. We build on this research by considering real-world campaign contexts in which candidates are working in competition with each other and have to react to the decisions of the opposing campaign. Our results suggest that it is never efficacious for candidates to run attack ads, but running positive ads can increase a candidate’s margin of victory. These results are conditioned by two factors: candidates must both stay positive and out-advertise their opponent. Second, the effects of positive advertising are strongest in areas where the candidate is losing or winning by a large margin—areas where they might be tempted to not advertise at all.

Relational aggression, positive urgency and negative urgency: predicting alcohol use and consequences among college students.

Science.gov (United States)

Grimaldi, Elizabeth M; Napper, Lucy E; LaBrie, Joseph W

2014-09-01

Research on relational aggression (indirect and social means of inflicting harm) has previously focused on adolescent populations. The current study extends this research by exploring both the frequency of perpetrating and being the target of relational aggression as it relates to alcohol use outcomes in a college population. Further, this study examines whether positive urgency (e.g., acting impulsively in response to positive emotions) and negative urgency (e.g., acting impulsively in response to negative emotions) moderate the relationship between relational aggression and alcohol outcomes. In this study, 245 college students (65.7% female) completed an online survey. Results indicated greater frequency of perpetrating relational aggression, higher levels of positive urgency, or higher levels of negative urgency was associated with more negative consequences. Further, negative urgency moderated the relationship between frequency of perpetrating aggression and consequences such that aggression was more strongly associated with consequences for those high in urgency. Counter to the adolescent literature, the frequency of being the target of aggression was not associated with more alcohol use. These findings suggest that perpetrators of relational aggression may be at particular risk for negative alcohol-related consequences when they act impulsively in response to negative, but not positive, emotions. These students may benefit from interventions exploring alternative ways to cope with negative emotions.

The Effect of Positive or Negative Frame on the Choices of Students in School Psychology and Educational Administration.

Science.gov (United States)

Fagley, N. S.; Miller, Paul M.; Jones, Robert N.

1999-01-01

Doctoral students (N=109) in school psychology and educational administration responded to five decision problems whose outcomes were framed either positively as gains or negatively as losses. Frame and profession significantly affected the number of risky choices. Educational administration students made more risky choices than school psychology…

Quantitative imaging of turbulent and reacting flows

Energy Technology Data Exchange (ETDEWEB)

Paul, P.H. [Sandia National Laboratories, Livermore, CA (United States)

1993-12-01

Quantitative digital imaging, using planar laser light scattering techniques is being developed for the analysis of turbulent and reacting flows. Quantitative image data, implying both a direct relation to flowfield variables as well as sufficient signal and spatial dynamic range, can be readily processed to yield two-dimensional distributions of flowfield scalars and in turn two-dimensional images of gradients and turbulence scales. Much of the development of imaging techniques to date has concentrated on understanding the requisite molecular spectroscopy and collision dynamics to be able to determine how flowfield variable information is encoded into the measured signal. From this standpoint the image is seen as a collection of single point measurements. The present effort aims at realizing necessary improvements in signal and spatial dynamic range, signal-to-noise ratio and spatial resolution in the imaging system as well as developing excitation/detection strategies which provide for a quantitative measure of particular flowfield scalars. The standard camera used for the study is an intensified CCD array operated in a conventional video format. The design of the system was based on detailed modeling of signal and image transfer properties of fast UV imaging lenses, image intensifiers and CCD detector arrays. While this system is suitable for direct scalar imaging, derived quantities (e.g. temperature or velocity images) require an exceptionally wide dynamic range imaging detector. To apply these diagnostics to reacting flows also requires a very fast shuttered camera. The authors have developed and successfully tested a new type of gated low-light level detector. This system relies on fast switching of proximity focused image-diode which is direct fiber-optic coupled to a cooled CCD array. Tests on this new detector show significant improvements in detection limit, dynamic range and spatial resolution as compared to microchannel plate intensified arrays.

Section 504 and student health problems: the pivotal position of the school nurse.

Science.gov (United States)

Zirkel, Perry A; Granthom, Margarita Fernan; Lovato, Leanna

2012-12-01

News reports illustrate controversies between parents and schools in response to student health problems. Today's school nurse is in a pivotal position for the avoidance and resolution of disputes not only by increasing awareness of student health conditions but also by having a working knowledge of legal developments under Section 504 and its sister statute-the Americans with Disabilities Act (ADA). The ADA amendments of 2008 have extended the standards for eligibility and expanded questions about school districts' obligations under Section 504 and the ADA. This article provides a comprehensive synthesis of recent case law and related legal developments under this pair of federal statutes, culminating in practical implications and professional recommendations for school nurses.

Student Trust in Teachers and Student Perceptions of Safety: Positive Predictors of Student Identification with School

Science.gov (United States)

Mitchell, Roxanne M.; Kensler, Lisa; Tschannen-Moran, Megan

2018-01-01

This study examined the effects of student trust in teacher and student perceptions of safety on identification with school. Data were collected from one large urban district in an eastern state. Participants included 5441 students in 3rd through 12th grades from 49 schools. Students responded to surveys that assessed student trust in teachers,…

Emotional Creativity as predictor of intrinsic motivation and academic engagement in university students: The mediating role of positive emotions

Directory of Open Access Journals (Sweden)

ALBERTO AMUTIO

2016-08-01

Full Text Available Objective: Emotional creativity implies experiencing a complex emotional life, which is becoming increasingly necessary in societies that demand innovation and constant changes. This research studies the relation of emotional creativity as a dispositional trait with intrinsic motivation and academic engagement.Methods: A sample of 428 university Chilean students, 36.5% men and 63.5% women, with ages from 18 to 45 years old (M = 20,37 DT = 2,71. Additionally, the mediating function of class-related positive emotions in this relation is explored.Results: The obtained data indicate that developing high levels of dispositional emotional creativity enhances the activation of positive emotions, such as gratitude, love and hope, in the classroom. Furthermore, emotional creativity predicts intrinsic motivation and academic engagement of university students by the experience of positive emotions. Conclusion: These results compel us to be aware of the importance that university students in their early years can understand the complexity of the emotional processes they undergo. A greater control of these emotions would allow students to maintain higher levels of interest in their studies at the different educational stages and to avoid the risk of school failure.

Effects of continuum breakdown on hypersonic aerothermodynamics for reacting flow

Science.gov (United States)

Holman, Timothy D.; Boyd, Iain D.

2011-02-01

This study investigates the effects of continuum breakdown on the surface aerothermodynamic properties (pressure, stress, and heat transfer rate) of a sphere in a Mach 25 flow of reacting air in regimes varying from continuum to a rarefied gas. Results are generated using both continuum [computational fluid dynamics (CFD)] and particle [direct simulation Monte Carlo (DSMC)] approaches. The DSMC method utilizes a chemistry model that calculates the backward rates from an equilibrium constant. A preferential dissociation model is modified in the CFD method to better compare with the vibrationally favored dissociation model that is utilized in the DSMC method. Tests of these models are performed to confirm their validity and to compare the chemistry models in both numerical methods. This study examines the effect of reacting air flow on continuum breakdown and the surface properties of the sphere. As the global Knudsen number increases, the amount of continuum breakdown in the flow and on the surface increases. This increase in continuum breakdown significantly affects the surface properties, causing an increase in the differences between CFD and DSMC. Explanations are provided for the trends observed.

The chilling effect: how do researchers react to controversy?

Directory of Open Access Journals (Sweden)

Joanna Kempner

2008-11-01

Full Text Available BACKGROUND: Can political controversy have a "chilling effect" on the production of new science? This is a timely concern, given how often American politicians are accused of undermining science for political purposes. Yet little is known about how scientists react to these kinds of controversies. METHODS AND FINDINGS: Drawing on interview (n = 30 and survey data (n = 82, this study examines the reactions of scientists whose National Institutes of Health (NIH-funded grants were implicated in a highly publicized political controversy. Critics charged that these grants were "a waste of taxpayer money." The NIH defended each grant and no funding was rescinded. Nevertheless, this study finds that many of the scientists whose grants were criticized now engage in self-censorship. About half of the sample said that they now remove potentially controversial words from their grant and a quarter reported eliminating entire topics from their research agendas. Four researchers reportedly chose to move into more secure positions entirely, either outside academia or in jobs that guaranteed salaries. About 10% of the group reported that this controversy strengthened their commitment to complete their research and disseminate it widely. CONCLUSIONS: These findings provide evidence that political controversies can shape what scientists choose to study. Debates about the politics of science usually focus on the direct suppression, distortion, and manipulation of scientific results. This study suggests that scholars must also examine how scientists may self-censor in response to political events.

The Chilling Effect: How Do Researchers React to Controversy?

Science.gov (United States)

Kempner, Joanna

2008-01-01

Background Can political controversy have a “chilling effect” on the production of new science? This is a timely concern, given how often American politicians are accused of undermining science for political purposes. Yet little is known about how scientists react to these kinds of controversies. Methods and Findings Drawing on interview (n = 30) and survey data (n = 82), this study examines the reactions of scientists whose National Institutes of Health (NIH)-funded grants were implicated in a highly publicized political controversy. Critics charged that these grants were “a waste of taxpayer money.” The NIH defended each grant and no funding was rescinded. Nevertheless, this study finds that many of the scientists whose grants were criticized now engage in self-censorship. About half of the sample said that they now remove potentially controversial words from their grant and a quarter reported eliminating entire topics from their research agendas. Four researchers reportedly chose to move into more secure positions entirely, either outside academia or in jobs that guaranteed salaries. About 10% of the group reported that this controversy strengthened their commitment to complete their research and disseminate it widely. Conclusions These findings provide evidence that political controversies can shape what scientists choose to study. Debates about the politics of science usually focus on the direct suppression, distortion, and manipulation of scientific results. This study suggests that scholars must also examine how scientists may self-censor in response to political events. PMID:19018657

Antecedents of positive self-disclosure online: an empirical study of US college students' Facebook usage.

Science.gov (United States)

Chen, Hongliang

2017-01-01

This study investigates the factors predicting positive self-disclosure on social networking sites (SNSs). There is a formidable body of empirical research relating to online self-disclosure, but very few studies have assessed the antecedents of positive self-disclosure. To address this literature gap, the current study tests the effects of self-esteem, life satisfaction, social anxiety, privacy concerns, public self-consciousness (SC), and perceived collectivism on positive self-disclosure on SNSs. Data were collected online via Qualtrics in April 2013. Respondents were undergraduate students from the University of Connecticut. Using ordinary least squares regression, the current study found that self-esteem and perceived collectivism increased positive self-disclosure, life satisfaction, and privacy concerns decreased positive self-disclosure, and the effects of social anxiety and public SC were not significant.

Group Work in the MBA Classroom: Improving Pedagogical Practice and Maximizing Positive Outcomes with Part-Time MBA Students

Science.gov (United States)

Rafferty, Patricia D.

2013-01-01

This article forms part of an exploration into how graduate students experience group work. A single case, embedded study was completed in 2011, which reveals insight and understanding into the manner in which part-time MBA students experience group work assignments and how these experiences contribute to their perception of positive group work…

Increasing Elementary School Students' Subjective Well-Being through a Classwide Positive Psychology Intervention: Results of a Pilot Study

Science.gov (United States)

Suldo, Shannon M.; Hearon, Brittany V.; Bander, Bryan; McCullough, Mollie; Garofano, Jeffrey; Roth, Rachel A.; Tan, Sim Yin

2015-01-01

There is growing interest in school-based programs to promote students' subjective well-being (SWB). Students with greater SWB tend to have stronger relationships with their teachers and classmates, as well as behave in more positive ways. Drawing from theory and research pertinent to promoting children's SWB, we developed an 11-session classwide…

Multiphase reacting flows modelling and simulation

CERN Document Server

Marchisio, Daniele L

2007-01-01

The papers in this book describe the most widely applicable modeling approaches and are organized in six groups covering from fundamentals to relevant applications. In the first part, some fundamentals of multiphase turbulent reacting flows are covered. In particular the introduction focuses on basic notions of turbulence theory in single-phase and multi-phase systems as well as on the interaction between turbulence and chemistry. In the second part, models for the physical and chemical processes involved are discussed. Among other things, particular emphasis is given to turbulence modeling strategies for multiphase flows based on the kinetic theory for granular flows. Next, the different numerical methods based on Lagrangian and/or Eulerian schemes are presented. In particular the most popular numerical approaches of computational fluid dynamics codes are described (i.e., Direct Numerical Simulation, Large Eddy Simulation, and Reynolds-Averaged Navier-Stokes approach). The book will cover particle-based meth...

Non-equilibrium reacting gas flows kinetic theory of transport and relaxation processes

CERN Document Server

Nagnibeda, Ekaterina; Nagnibeda, Ekaterina

2009-01-01

This volume develops the kinetic theory of transport phenomena and relaxation processes in the flows of reacting gas mixtures. The theory is applied to the modeling of non-equilibrium flows behind strong shock waves, in the boundary layer, and in nozzles.

Steam bubble growth in the bulk of overheated N2O4-NO chemically reacting solution

International Nuclear Information System (INIS)

Nemtsev, V.A.; Cherkashin, A.M.

1989-01-01

A mathematical model and numerical investigation of the vapour bubble growth that begins from the bubble critical size at the positive radius fluctuation during the initial moment in the bulk of the overheated N 2 O 4 -NO liquid solution are presented. The mathematical model has been stated under the following assumptions: the movement of a bubble wall and surrounding liquid is spherically symmetrical; thermal parameters in the bubble are distributed uniformly; the vapour phase follows the ideal gas law; heat transfer is not affected by the compressibility of liquid; if dissolution of light components is determined by Henry's law, then Hertz-Knudsen's equation determines the velocity of phase transition for a N 2 O 4 component. The mathematical model presented can be applied to another fluids, including chemically reacting ones

'REACTS'. A pragmatic approach for providing medical care and physician education for radiation emergencies

International Nuclear Information System (INIS)

Lushbaugh, C.C.; Andrews, G.A.; Huebner, K.F.; Cloutier, R.J.; Beck, W.L.; Berger, J.D.

1976-01-01

Because serious radiation incidents have been rare, few medical personnel (notably only some in France, Russia, Belgium, Canada, Yugoslavia, Japan, Great Britain and the United States) have first-hand experience in radiation-accident management. The generation of physicians who participated in those accidents now needs to pass on the bits of knowledge that were gleaned from them. These case histories are difficult for the local, non-radiology physician to obtain when he is called upon to help formulate the medical-emergency response plan required everywhere for licensing power reactors. The Radiation Emergency Assistance Center and Training Site (REACTS) in Oak Ridge, Tennessee, supported by the US Energy Research and Development Administration, is designed to meet these medical and educational needs. REACTS, located in the Oak Ridge Hospital of the Methodist Church, is not involved in the hospital's daily community functions except insofar as REACTS is the radiation emergency arm of the area's major disaster plan. Its dual mission is training physicians, nurses, and paramedical emergency personnel in radiation-accident management, and treating irradiated and contaminated persons. Its training activities are carried out by the Special Training Division of Oak Ridge Associated Universities. Formal courses in radiation medicine and health physics and practical laboratory experience are now conducted twice a year for physicians. They will be expanded in the future to include training of paramedical personnel. Follow-up studies of radiation-accident survivors are carried out in REACTS to ensure the preservation of valuable human data and radiation-accident experiences. This unique facility and its staff are dedicated to meet the needs of the far-flung public and private medical domains in the United States for nuclear-production energy

Tax havens under international pressure: How do they react?

OpenAIRE

Patrice Pieretti; Giuseppe Pulina

2015-01-01

This paper contributes to the literature about tax havens by providing a more comprehensive analysis of their role. The aim is to analyze how low-tax jurisdictions can react to growing international pressure exerted, by high-tax countries, to enforce compliance with anti aggressive tax planning standards. To this end, we model how a small tax haven tries to be attractive to multinationals located in a high-tax region by providing aggressive tax planning services and/or a favorable environment...

Symbolic and Nonsymbolic Equivalence Tasks: The Influence of Symbols on Students with Mathematics Difficulty

Science.gov (United States)

Driver, Melissa K.; Powell, Sarah R.

2015-01-01

Students often experience difficulty with attaching meaning to mathematics symbols. Many students react to symbols, such as the equal sign, as a command to "do something" or "write an answer" without reflecting upon the proper relational meaning of the equal sign. One method for assessing equal-sign understanding is through…

Intending to stay: Positive images, attitudes, and classroom experiences as influences on students' intentions to persist in science and engineering majors

Science.gov (United States)

Wyer, Mary Beth

2000-10-01

Contemporary research on persistence in undergraduate education in science and engineering has focused primarily on identifying the structural, social, and psychological barriers to participation by students in underrepresented groups. As a result, there is a wealth of data to document why students leave their majors, but there is little direct empirical data to support prevailing presumptions about why students stay. Moreover, researchers have used widely differing definitions and measures of persistence, and they have seldom explored field differences. This study compared three ways of measuring persistence. These constituted three criterion variables: commitment to major, degree aspirations, and commitment to a science/engineering career. The study emphasized social factors that encourage students to persist, including four predictor variables---(1) positive images of scientists/engineers, (2) positive attitudes toward gender and racial equality, (3) positive classroom experiences, and (4) high levels of social integration. In addition, because researchers have repeatedly documented the degree to which women are more likely than men to drop out of science and engineering majors, the study examined the potential impact of gender in relation to these predictor variables. A survey was administered in the classroom to a total of 285 students enrolled in a required course for either a biological sciences and or an engineering major. Predictor variables were developed from standard scales, including the Images of Science/Scientists Scale, the Attitudes toward Women Scale, the Women in Science Scale, and the Perceptions of Prejudice Scale. Based on logistic regression models, results indicate that positive images of scientists and engineers was significantly related to improving the odds of students having a high commitment to major, high degree aspirations, and high commitment to career. There was also evidence that positive attitudes toward gender and racial equality

The Effects of Gratitude Journaling on Turkish First Year College Students' College Adjustment, Life Satisfaction and Positive Affect

Science.gov (United States)

Isik, Serife; Ergüner-Tekinalp, Bengü

2017-01-01

This study examined the effects of gratitude journaling on first-year college students' adjustment, life satisfaction, and positive affect. Students who scored high (i.e., scores between 35 and 56) on the Perceived Stress Scale (Cohen et al. in "Journal of Health and Social Behavior," 24, 385-396, 1983) and low (i.e., scores between 48…

THE STABILITY OF OPTICALLY THIN REACTING PLASMAS: EFFECTS OF THE BULK VISCOSITY

International Nuclear Information System (INIS)

Ibanez S, Miguel H.

2009-01-01

The thermochemical stability of reacting plasmas is analyzed by taking into account the change in the thermodynamical equilibrium values during the fluctuation. This shift in the equilibrium produces two main effects: a change in the four instability criteria for reacting gases resulting when the above effect is neglected and adds a fifth instability criterion due to the fact that the corresponding secular equation becomes a fifth-order polynomial. The above results are applied to several plasma models, in particular, to a photoionized hydrogen plasma for which the bulk viscosity can be more important than the dynamic viscosity and the thermometric conductivity. Therefore, the bulk viscosity may quench thermochemical instabilities were the thermal conduction is unable of stabilizing. This occurs for low values of the photoionizing energy E. The implications of the above results in explaining the formation of clump structures in different regions of the interstellar medium are outlined.

Development of a Teacher Scale to Measure Presence and Frequency of Students' Resistance Behaviours

Science.gov (United States)

Sari, Mediha

2018-01-01

Student resistance, which can briefly be defined as the tendency to resist teaching activities, is student's reacting to the teaching-learning activities, teachers, or administrators knowingly and wilfully, many times intentionally in various ways. Resistance behaviours, which could be considered as the outpouring of the anger created by the…

Managing Blended Friendships: Using Empirical Data to Prepare Students and Employees for Relational Outcomes

Science.gov (United States)

Kingsley Westerman, Catherine Y.; Park, Hee Sun

2010-01-01

The current study investigates how college students expect to react to inequity in blended friendships. Blended friendship is defined as a friendship that involves interaction at work and outside of work. Data from undergraduate students (N = 185) showed that liking and relational importance were found to be lower in underreward and overreward…

Sex differences and violence among primary school students

Directory of Open Access Journals (Sweden)

Marković Živorad M.

2017-01-01

Full Text Available This is the micro research which studied the connection between gender and violence between older primary school students with the goal of discovering exposure of gender members to violence in school context and the ways of reaction to the violence. The researchers from different scientific disciplines have been permanently involved in studying the problem of violence for more than a decade with the goal to lessen the high percentage of violence in schools. In this sense, this research, with its range and character, represents the contribution in discovering characteristics of violence in schools in one specific local area, which could fill in the wholeness of this phenomenon. The research involved students of the final grade of primary school on the territory of the municipality of Svilajnac (which is in central part of Serbia and it was performed in December 2015. 236 students were surveyed. The survey consisted of the following questions a which questioned the social matrix of families in which the students live b which questioned presence and frequency of different types of violence between students in primary schools c which questioned the attitudes of students of both genders about the violence, exposure to violence in school and the ways of reacting to violence. In the frame of quantitative analysis of the data the following was applied: percentual research of frequencies and Pierson's hi-square test (x2 for testing of hyphothesis about the significance of differences. The main results of the research showed: a There is no statistically significant difference in exposure to violence in school between male and female students of primary school age; both genders are exposed to verbal and physical violence and male students (45.7% are more exposed to physical, and female students (38.3% are more exposed to verbal violence. bThere is no statistically significant difference in the readiness of students considering their gender to help another

Materials study for reacting plasma machine

International Nuclear Information System (INIS)

Kamada, Kohji; Hamada, Yasuji

1982-01-01

A new reacting plasma machine is designed, and will be constructed at the Institute of Plasma Physics, Nagoya University. It is important to avoid the activation of the materials for the machine, accordingly, aluminum alloy has been considered as the material since the induced activity of aluminum due to 14 MeV neutrons is small. The vacuum chamber of the new machine consists of four modules, and the remote control of each module is considered. However, the cost of the remote control of modules is expensive. To minimize the dependence on the remote control, the use of aluminum alloy is considered as the first step. The low electrical resistivity, over-ageing, weak mechanical strength and eddy current characteristics of aluminum alloy must be improved. The physical and electrical properties of various aluminum alloys have been investigated. Permeability of hydrogen through aluminum, the recycling characteristics and surface coating materials have been also studied. (Kato, T.)

Managing HIV/hepatitis positive patients: present approach of dental health care workers and students.

Science.gov (United States)

Shinde, Nagesh; Baad, Rajendra; Nagpal, Deepak Kumar J; Prabhu, Prashant R; Surekha, L Chavan; Karande, Prasad

2012-11-01

People with HIV/HBsAg in India frequently encounter discrimination while seeking and receiving health care services. The knowledge and attitudes of health care workers (HCWs) influences the willingness and ability of people with HIV/HBsAg to access care, and the quality of the care they receive. The objective of this study was to asses HIV/HBsAg-related knowledge, attitudes and risk perception among students and dental HCWs. A cross-sectional survey was conducted on 250 students and 120 dental HCWs in the form of objective questionnaire. Information was gathered regarding demographic details (age, sex, duration of employment, job category); HIV/ HBsAg-related knowledge and attitudes; risk perception; and previous experience caring for HIV-positive patients. The HCWs in this study generally had a positive attitude to care for the people with HIV/HBsAg. However, this was tempered by substantial concerns about providing care, and the fear of occupational infection with HIV/HBsAg. A continuing dental education program was conducted to resolve all the queries found interfering to provide care to HIV/HBsAg patients. But even after the queries were resolved the care providing capability was not attained. These findings show that even with advanced knowledge and facilities the attitude of dental HCWs and students require more strategic training with regards to the ethics and moral stigma associated with the dreaded infectious diseases (HIV/HBsAg).

Reliability and Agreement in Student Ratings of the Class Environment

Science.gov (United States)

Nelson, Peter M.; Christ, Theodore J.

2016-01-01

The current study estimated the reliability and agreement of student ratings of the classroom environment obtained using the Responsive Environmental Assessment for Classroom Teaching (REACT; Christ, Nelson, & Demers, 2012; Nelson, Demers, & Christ, 2014). Coefficient alpha, class-level reliability, and class agreement indices were…

Measuring Organizational Responses to the Student Complaints in the Perceived Justice Framework: Some Evidence from Northern Cyprus Universities

Science.gov (United States)

Ekiz, Erdogan H.; Arasli, Huseyin; Farivarsadri, Guita; Bavik, Ali

2008-01-01

The main aim of the study is to determine what kind of complaints students have, how universities react to these complaints, and how relevant reactions affect justice perceptions, complainant satisfaction, exit and negative word of mouth intensions of the students. In order to find out students' perceptions on university responses to their…

Thermal properties of wood reacted with a phosphorus pentoxide–amine system

Science.gov (United States)

Hong-Lin Lee; George C. Chen; Roger M. Rowell

2004-01-01

The objective of this research was to improve the fire-retardant properties of wood in one treatment using a phosphorus pentoxide–amine system. Phosphorus pentoxide and 16 amines including alkyl, halophenyl, and phenyl amines were compounded in N,N-dimethylformamide and the resulting solutions containing phosphoramides were reacted with wood. The characteristics of...

Want Positive Behavior? Use Positive Language

Science.gov (United States)

Wood, Chip; Freeman-Loftis, Babs

2012-01-01

Positive adult language is the professional use of words and tone of voice to enable students to learn in an engaged, active way. This includes learning social skills. To guide children toward choosing and maintaining positive behaviors, adults need to carefully choose the words and tone of voice used when speaking to them. Learning to use…

Neck Circumference Positively Related with Central Obesity and Overweight in Turkish University Students: A Preliminary Study.

Science.gov (United States)

Özkaya, İsmail; Tunçkale, Aydın

2016-06-01

According to the World Health Organization, central obesity is increasing alarmingly worldwide. Neck circumference is a relatively new method of differentiating between normal and abnormal fat distribution. The aim of this study is to determine the association between neck circumference and central obesity in young Turkish male and female university students. A community of university students based cross-sectional study was conducted on 319 males and 838 females and investigated the association between neck circumference and other anthropometric variables by gender. In male subjects, the neck circumference revealed a positive correlation with the body mass index (r=0.684, pobesity, is also applicable to university students. Copyright© by the National Institute of Public Health, Prague 2015.

ReACT Methodology Proof of Concept Final Report

Energy Technology Data Exchange (ETDEWEB)

Bri Rolston; Sarah Freeman

2014-03-01

The Department of Energy’s Office of Electricity Delivery and Energy Reliability (DOE-OE) funded INL Researchers to evaluate a novel process for assessing and mitigating cyber security risks. The proof of concept level of the method was tested in an industry environment. This case study, plus additional case studies will support the further development of the method into a tool to assist industry in securing their critical networks. This report provides an understanding of the process developed in the Response Analysis and Characterization Tool (ReACT) project. This report concludes with lessons learned and a roadmap for final development of these tools for use by industry.

Producing more persuasive antiviolence messages for college students: testing the effects of framing, information sources, and positive/negative fact appeal.

Science.gov (United States)

Yu, Hyunjae Jay

2012-06-01

College students, between the ages of about 18 and 24, are the group of people who are most often exposed to situations involving diverse types of violence. They have greater access to alcohol and drugs and are under far less parental supervision than younger age groups; reports have shown that frequent involvement in several types of violent behaviors can seriously damage college students physically and psychologically. However, despite the high rate of violence among college students, there has not been enough discussion about how we can produce more effective antiviolence messages targeting college students. This research provides some useful insights into this issue by testing the possible effects of three antiviolence message conditions: gain/loss framing, different information sources, and negative/positive fact appeal. The results reveal that college students in this study find more appeal in antiviolence messages conveyed by a traditional public service announcement (PSA) than in a TV news report. The results also reveal that people pay more attention to messages that use negative fact appeal (e.g., "There are many people losing a lot of precious things because of their violent behaviors") than to those that use positive fact appeal (e.g., "There are many people gaining a lot of precious things by avoiding violent behaviors"). An interaction effect between information sources and positive/negative fact appeal was also detected.

The Effects of College Students' Positive Thinking, Learning Motivation and Self-Regulation through a Self-Reflection Intervention in Taiwan

Science.gov (United States)

Wang, Hsin-Hui; Chen, Hsiang-Ting; Lin, Huann-Shyang; Hong, Zuway-R

2017-01-01

This quasi-experimental study examined the effects of a self-reflection intervention on college (college in this article refers to university-level education) students' positive thinking, learning motivation and self-regulation in Taiwan. One hundred and two college students were selected to participate in an 18-week intervention forming the…

The dead center of the dental curriculum: changing attitudes of dental students during dissection.

Science.gov (United States)

Redwood, Christopher J; Townsend, Grant C

2011-10-01

The purpose of this study was to investigate changes in dental students' perceptions of professionalism, knowledge, and emotion over the period of dissection in a human anatomy course. Whether human dissection needs to be a part of the modern dental curriculum is often called into question, particularly with the plethora of electronic and other aids available to support the learning of anatomy. The influence of the dissection process on development of professional attitudes and emotional maturity has been studied in medical students, but how dental students react to this part of their education is less well known. To investigate this question, a survey was administered before and after the dissection course to two sequential year groups of dental students. It was found that these students had high levels of understanding of professional values before commencing dissection and continued to value the role of teamwork in aiding their learning over the survey period. The majority of students coped well with the assimilation of knowledge and developed coping mechanisms to handle the emotional aspects of dissection. The students remained excited by and interested in dissection, and the majority valued it as the most positive aspect of their anatomy course. The students increasingly valued the use of prosected specimens as an aid to learning. This study confirmed that significant changes occur in dental students' attitudes during the period of dissection, which we believe contribute to the development of more empathetic and caring practitioners.

Heat and mass transfer for turbulent flow of chemically reacting gas in eccentric annular channels

International Nuclear Information System (INIS)

Besedina, T.V.; Tverkovkin, B.E.; Udot, A.V.; Yakushev, A.P.

1988-01-01

Because of the possibility of using dissociating gases as coolants and working bodies of nuclear power plants, it is necessary to develop computational algorithms for calculating heat and mass transfer processes under conditions of nonequilibrium flow of chemically reacting gases not only in axisymmetric channels, but also in channels with a complex transverse cross section (including also in eccentric annular channels). An algorithm is proposed for calculating the velocity, temperature, and concentration fields under conditions of cooling of a cylindrical heat-releasing rod, placed off-center in a circular casing pipe, by a longitudinal flow of chemically reacting gas [N 2 O 4

Positive Psychology and Familial Factors as Predictors of Latina/o Students' Hope and College Performance

Science.gov (United States)

Cavazos Vela, Javier; Lerma, Eunice; Lenz, A. Stephen; Hinojosa, Karina; Hernandez-Duque, Omar; Gonzalez, Stacey L.

2014-01-01

We investigated the contributions of positive psychology and familial factors as predictors of hope and academic performance among 166 Latina/o college students enrolled at a Hispanic Serving Institution of Higher Education. The results indicated that presence of meaning in life, search for meaning in life, daily spiritual experiences, and…

Academic Procrastination among College Students with Learning Disabilities: The Role of Positive and Negative Self-Oriented Perfectionism in Terms of Gender, Specialty and Grade

Science.gov (United States)

Mohammed, Adel Abdulla; Sherit, Asharaf Mohammed A.; Eissa, Mourad Ali; Mostafa, Amaal Ahmed

2013-01-01

The purpose of this study was three folds: to explore whether there were relationship between academic procrastination and positive and negative self-oriented perfectionism of college students with learning disabilities, the extent to which positive and negative self-oriented perfectionism of college students with learning disabilities predicts…

Hot or Not: The Role of Instructor Quality and Gender on the Formation of Positive Illusions among Students Using RateMyProfessors.com

Directory of Open Access Journals (Sweden)

Katherine C. Theyson

2015-02-01

Full Text Available Existing literature indicates that physical attractiveness positively affects variables such as income, perceived employee quality and performance evaluations. Similarly, in the academic arena, studies indicate instructors who are better looking receive better teaching evaluations from their students. Previous analysis of the website RateMyProfessors.com confirms this, indicating that instructors who are viewed by students as - hot- receive higher - quality- ratings than those who are - not.- However, psychology literature indicates that perceptions of attractiveness are influenced by positive illusions, a property whereby individuals with higher quality relationships view each other more positively than objective observers. This paper uses data from Rate My Professors to investigate the existence of positive illusions in the instructor-student relationship. It finds that positive illusions exist, suggesting that existing literature overestimates the premium associated with physical attractiveness. Furthermore, the source of these illusions varies significantly between male and female instructors with important implications for the role of gender in workplace evaluations, hiring, promotion, and tenure.

Sexual Orientation and Gender Identity/Expression (Sexual Minority Students): School Nurse Practice. Position Statement. Revised

Science.gov (United States)

Bradley, Beverly

2012-01-01

It is the position of the National Association of School Nurses that all students, regardless of their sexual orientation or the sexual orientation of their parents and family members, are entitled to a safe school environment and equal opportunities for a high level of academic achievement and school participation/involvement. Establishment of…

Daily Reports of Positive and Negative Affect and Alcohol and Marijuana Use Among College Student and Nonstudent Young Adults.

Science.gov (United States)

Patrick, Megan E; Yeomans-Maldonado, Gloria; Griffin, Jamie

2016-01-02

Daily affect and substance use covary among college students, but little is known about these associations among young adults not in college. The current pilot study examines associations between positive and negative affect and alcohol and marijuana use, with a focus on differences between college student and nonstudent young adults. High school seniors completed a baseline survey during the spring of 2012 and were then randomly selected to participate in an intensive measurement follow-up. Participants in the follow-up (N = 72, 40.3% men, 77.8% White, 66.7% full-time college students) completed up to 14 consecutive web-based daily surveys during the fall after high school completion. Multilevel models in which days (Level 1) were nested in persons (Level 2) were estimated. Weekend days were associated with increased alcohol use among all young adults, increased marijuana use among college students, and decreased marijuana use among nonstudents. For young adults not in college, greater daily positive affect was associated with increased likelihood of binge drinking, consuming a greater number of drinks, and lower odds of marijuana use; greater daily negative affect was associated with lower odds of alcohol use and lower odds of binge drinking for non-students. For college students, greater daily negative affect was associated with lower odds of marijuana use. Daily affect and alcohol and marijuana use covary among young adults, though these associations differ between students and non-students. Results highlight the need to examine predictors of alcohol and marijuana use among young adults who do not attend college.

Predictors of a positive attitude of medical students towards general practice - a survey of three Bavarian medical faculties.

Science.gov (United States)

Schneider, Antonius; Karsch-Völk, Marlies; Rupp, Alica; Fischer, Martin R; Drexler, Hans; Schelling, Jörg; Berberat, Pascal

2013-01-01

Germany is witnessing an increasing shortage of general practitioners (GPs). The aim was to determine predictors of the job-related motivation of medical students of three medical faculties with different institutionalisation of general practice as an academic discipline. Medical students were surveyed with a standardised questionnaire about their attitudes towards general practice and their motivation to work as a GP in different working conditions. Predictors for positive attitudes and motivation were calculated using logistic regression models. 940 (15.2%) out of 6182 medical students from three Bavarian medical faculties participated in an online survey. 585 (62.7%) were female, and the average age was 25.0 (standard deviation 3.7). The average grade of a university-entrance diploma was 1.6 (standard deviation 0.5). 718 (76.4%) could imagine working as a GP. However, they favoured being employed within another organisation and not having their own private practice (65.5% vs. 35.1%). "Presence of a professorship of general practice" was associated with a positive attitude towards general practice (OR 1.57; 95%CI 1.13-2.417). Motivation for working as a GP was associated with "being female" (OR 2.56; 95%CI 1.80-3.56) and "presence of a professorship of general practice" (OR 1.68; 95%CI 1.14-2.46). Having a lower grade for one's university-entrance diploma was associated with a higher preference to work in one's own practice (OR 1.39; 95%CI 1.02-1.90). A high amount of medical students were open-minded towards general practice. However, they favoured employment within an organization over working in their own practice. Institutionalisation of general practice as an academic discipline might be of importance to gain positive attitudes towards general practice and motivate medical students to work as a GP.

Development of a Reduced-Order Model for Reacting Gas-Solids Flow using Proper Orthogonal Decomposition

Energy Technology Data Exchange (ETDEWEB)

McDaniel, Dwayne [Florida International Univ., Miami, FL (United States); Dulikravich, George [Florida International Univ., Miami, FL (United States); Cizmas, Paul [Florida International Univ., Miami, FL (United States)

2017-11-27

This report summarizes the objectives, tasks and accomplishments made during the three year duration of this research project. The report presents the results obtained by applying advanced computational techniques to develop reduced-order models (ROMs) in the case of reacting multiphase flows based on high fidelity numerical simulation of gas-solids flow structures in risers and vertical columns obtained by the Multiphase Flow with Interphase eXchanges (MFIX) software. The research includes a numerical investigation of reacting and non-reacting gas-solids flow systems and computational analysis that will involve model development to accelerate the scale-up process for the design of fluidization systems by providing accurate solutions that match the full-scale models. The computational work contributes to the development of a methodology for obtaining ROMs that is applicable to the system of gas-solid flows. Finally, the validity of the developed ROMs is evaluated by comparing the results against those obtained using the MFIX code. Additionally, the robustness of existing POD-based ROMs for multiphase flows is improved by avoiding non-physical solutions of the gas void fraction and ensuring that the reduced kinetics models used for reactive flows in fluidized beds are thermodynamically consistent.

MHD flow and heat transfer of a viscous reacting fluid over a ...

African Journals Online (AJOL)

This paper presents a boundary layer flow analysis for a viscous, incompressible, electrically conducting reacting fluid over a stretching sheet in the presence of a magnetic field. It is shown that the Hartmann, Prandtl and the Eckert numbers have effect on the velocity and temperature fields. Journal of the Nigerian ...

Propel: A Discontinuous-Galerkin Finite Element Code for Solving the Reacting Navier-Stokes Equations

Science.gov (United States)

Johnson, Ryan; Kercher, Andrew; Schwer, Douglas; Corrigan, Andrew; Kailasanath, Kazhikathra

2017-11-01

This presentation focuses on the development of a Discontinuous Galerkin (DG) method for application to chemically reacting flows. The in-house code, called Propel, was developed by the Laboratory of Computational Physics and Fluid Dynamics at the Naval Research Laboratory. It was designed specifically for developing advanced multi-dimensional algorithms to run efficiently on new and innovative architectures such as GPUs. For these results, Propel solves for convection and diffusion simultaneously with detailed transport and thermodynamics. Chemistry is currently solved in a time-split approach using Strang-splitting with finite element DG time integration of chemical source terms. Results presented here show canonical unsteady reacting flow cases, such as co-flow and splitter plate, and we report performance for higher order DG on CPU and GPUs.

Pointing the profession in the right direction: positive ethical movements among dental students and education.

Science.gov (United States)

Loftis, Brooke

2008-01-01

The American Student Dental Association has a substantial stake in the future of the dental profession. ASDA is taking a proactive role in addressing recently publicized cases of academic dishonesty and other ethical problems. Some of these initiatives and a sampling of the positive efforts in dental schools to build sound ethical climates are reviewed.

Why Targets of Economic Sanctions React Differently: Reference Point Effects on North Korea and Libya

Directory of Open Access Journals (Sweden)

Jiyoun Park

2017-06-01

Full Text Available The international community has frequently introduced economic sanctions to curb the proliferation of weapons of mass destruction, to which each target nation has reacted differently. This paper explores the reasons why each target of economic sanctions reacts differently by specif- ically building a model based on reference point effects, and by analyzing the cases of North Korea and Libya. According to the results, when the reference point level increases, as in the case of North Korea, the target resists more firmly; on the other hand, when the reference point decreases, like in the case of Libya, the target resists more subtly.

The Relation of College Student Self-Efficacy toward Writing and Writing Self-Regulation Aptitude: Writing Feedback Perceptions as a Mediating Variable

Science.gov (United States)

Ekholm, Eric; Zumbrunn, Sharon; Conklin, Sarah

2015-01-01

Despite the powerful effect feedback often has on student writing success more research is needed on how students emotionally react to the feedback they receive. This study tested the predictive and mediational roles of college student writing self-efficacy beliefs and feedback perceptions on writing self-regulation aptitude. Results suggested…

Sticky tunes: how do people react to involuntary musical imagery?

Directory of Open Access Journals (Sweden)

Victoria J Williamson

Full Text Available The vast majority of people experience involuntary musical imagery (INMI or 'earworms'; perceptions of spontaneous, repetitive musical sound in the absence of an external source. The majority of INMI episodes are not bothersome, while some cause disruption ranging from distraction to anxiety and distress. To date, little is known about how the majority of people react to INMI, in particular whether evaluation of the experience impacts on chosen response behaviours or if attempts at controlling INMI are successful or not. The present study classified 1046 reports of how people react to INMI episodes. Two laboratories in Finland and the UK conducted an identical qualitative analysis protocol on reports of INMI reactions and derived visual descriptive models of the outcomes using grounded theory techniques. Combined analysis carried out across the two studies confirmed that many INMI episodes were considered neutral or pleasant, with passive acceptance and enjoyment being among the most popular response behaviours. A significant number of people, however, reported on attempts to cope with unwanted INMI. The most popular and effective behaviours in response to INMI were seeking out the tune in question, and musical or verbal distraction. The outcomes of this study contribute to our understanding of the aetiology of INMI, in particular within the framework of memory theory, and present testable hypotheses for future research on successful INMI coping strategies.

Sticky Tunes: How Do People React to Involuntary Musical Imagery?

Science.gov (United States)

Williamson, Victoria J.; Liikkanen, Lassi A.; Jakubowski, Kelly; Stewart, Lauren

2014-01-01

The vast majority of people experience involuntary musical imagery (INMI) or ‘earworms’; perceptions of spontaneous, repetitive musical sound in the absence of an external source. The majority of INMI episodes are not bothersome, while some cause disruption ranging from distraction to anxiety and distress. To date, little is known about how the majority of people react to INMI, in particular whether evaluation of the experience impacts on chosen response behaviours or if attempts at controlling INMI are successful or not. The present study classified 1046 reports of how people react to INMI episodes. Two laboratories in Finland and the UK conducted an identical qualitative analysis protocol on reports of INMI reactions and derived visual descriptive models of the outcomes using grounded theory techniques. Combined analysis carried out across the two studies confirmed that many INMI episodes were considered neutral or pleasant, with passive acceptance and enjoyment being among the most popular response behaviours. A significant number of people, however, reported on attempts to cope with unwanted INMI. The most popular and effective behaviours in response to INMI were seeking out the tune in question, and musical or verbal distraction. The outcomes of this study contribute to our understanding of the aetiology of INMI, in particular within the framework of memory theory, and present testable hypotheses for future research on successful INMI coping strategies. PMID:24497938

SQL Triggers Reacting on Time Events: An Extension Proposal

Science.gov (United States)

Behrend, Andreas; Dorau, Christian; Manthey, Rainer

Being able to activate triggers at timepoints reached or after time intervals elapsed has been acknowledged by many authors as a valuable functionality of a DBMS. Recently, the interest in time-based triggers has been renewed in the context of data stream monitoring. However, up till now SQL triggers react to data changes only, even though research proposals and prototypes have been supporting several other event types, in particular time-based ones, since long. We therefore propose a seamless extension of the SQL trigger concept by time-based triggers, focussing on semantic issues arising from such an extension.

Rationale and design of REACT: a randomised controlled trial assessing the effectiveness of home-collection to increase chlamydia retesting and detect repeat positive tests.

Science.gov (United States)

Smith, Kirsty S; Hocking, Jane S; Chen, Marcus; Fairley, Christopher K; McNulty, Anna; Read, Phillip; Bradshaw, Catriona S; Tabrizi, Sepehr N; Wand, Handan; Saville, Marion; Rawlinson, William; Garland, Suzanne M; Donovan, Basil; Kaldor, John M; Guy, Rebecca

2014-04-24

Repeat infection with Chlamydia trachomatis is common and increases the risk of sequelae in women and HIV seroconversion in men who have sex with men (MSM). Despite guidelines recommending chlamydia retesting three months after treatment, retesting rates are low. We are conducting the first randomised controlled trial to assess the effectiveness of home collection combined with short message service (SMS) reminders on chlamydia retesting and reinfection rates in three risk groups. The REACT (retest after Chlamydia trachomatis) trial involves 600 patients diagnosed with chlamydia: 200 MSM, 200 women and 200 heterosexual men recruited from two Australian sexual health clinics where SMS reminders for retesting are routine practice. Participants will be randomised to the home group (3-month SMS reminder and home-collection) or the clinic group (3-month SMS reminder to return to the clinic). Participants in the home group will be given the choice of attending the clinic if they prefer. The mailed home-collection kit includes a self-collected vaginal swab (women), UriSWAB (Copan) for urine collection (heterosexual men), and UriSWAB plus rectal swab (MSM). The primary outcome is the retest rate at 1-4 months after a chlamydia diagnosis, and the secondary outcomes are: the repeat positive test rate; the reinfection rate; the acceptability of home testing with SMS reminders; and the cost effectiveness of home testing. Sexual behaviour data collected via an online survey at 4-5 months, and genotyping of repeat infections, will be used to discriminate reinfections from treatment failures. The trial will be conducted over two years. An intention to treat analysis will be conducted. This study will provide evidence about the effectiveness of home-collection combined with SMS reminders on chlamydia retesting, repeat infection and reinfection rates in three risk groups. The trial will determine client acceptability and cost effectiveness of this strategy. Australian and New

A commercial ELISA detects high levels of human H5 antibody but cross-reacts with influenza A antibodies.

Science.gov (United States)

Stelzer-Braid, Sacha; Wong, Bruce; Robertson, Peter; Lynch, Garry W; Laurie, Karen; Shaw, Robert; Barr, Ian; Selleck, Paul W; Baleriola, Cristina; Escott, Ros; Katsoulotos, Gregory; Rawlinson, William D

2008-10-01

Commercial serological assays to determine influenza A H5N1 infection are available, although the accuracy and reproducibility of these are not reported in detail. This study aimed to assess the validity of a commercial ELISA H5 hemagglutinin (HA) antibody kit. A commercial ELISA for detection of antibodies towards influenza A H5 HA was evaluated using human sera from vaccinated individuals. The ELISA was used to screen 304 sera with elevated influenza A complement fixation titres collected between the period 1995-2007. The ELISA was found to be accurate for sera with high levels of anti-H5 antibodies, and would be useful in clinical settings where a rapid result is required. Thirteen of the stored sera were positive using the ELISA, but were confirmed as negative for H5N1 exposure using further serological tests. Absorption studies suggested that antibodies towards seasonal H3N2 and H1N1 influenza may cross-react with H5 antigen, giving false positive results with the ELISA.

Methane reacts with heteropolyacids chemisorbed on silica to produce acetic acid under soft conditions

KAUST Repository

Sun, Miao; Abou-Hamad, Edy; Rossini, Aaron J.; Zhang, Jizhe; Lesage, Anne; Zhu, Haibo; Pelletier, Jeremie; Emsley, Lyndon; Caps, Valerie; Basset, Jean-Marie

2013-01-01

Selective functionalization of methane at moderate temperature is of crucial economic, environmental, and scientific importance. Here, we report that methane reacts with heteropolyacids (HPAs) chemisorbed on silica to produce acetic acid under soft

Recent advances in ultrafast-laser-based spectroscopy and imaging for reacting plasmas and flames

Science.gov (United States)

Patnaik, Anil K.; Adamovich, Igor; Gord, James R.; Roy, Sukesh

2017-10-01

Reacting flows and plasmas are prevalent in a wide array of systems involving defense, commercial, space, energy, medical, and consumer products. Understanding the complex physical and chemical processes involving reacting flows and plasmas requires measurements of key parameters, such as temperature, pressure, electric field, velocity, and number densities of chemical species. Time-resolved measurements of key chemical species and temperature are required to determine kinetics related to the chemical reactions and transient phenomena. Laser-based, noninvasive linear and nonlinear spectroscopic approaches have proved to be very valuable in providing key insights into the physico-chemical processes governing reacting flows and plasmas as well as validating numerical models. The advent of kilohertz rate amplified femtosecond lasers has expanded the multidimensional imaging of key atomic species such as H, O, and N in a significant way, providing unprecedented insight into preferential diffusion and production of these species under chemical reactions or electric-field driven processes. These lasers not only provide 2D imaging of chemical species but have the ability to perform measurements free of various interferences. Moreover, these lasers allow 1D and 2D temperature-field measurements, which were quite unimaginable only a few years ago. The rapid growth of the ultrafast-laser-based spectroscopic measurements has been fueled by the need to achieve the following when measurements are performed in reacting flows and plasmas. They are: (1) interference-free measurements (collision broadening, photolytic dissociation, Stark broadening, etc), (2) time-resolved single-shot measurements at a rate of 1-10 kHz, (3) spatially-resolved measurements, (4) higher dimensionality (line, planar, or volumetric), and (5) simultaneous detection of multiple species. The overarching goal of this article is to review the current state-of-the-art ultrafast-laser-based spectroscopic

A multi-institutional study exploring the impact of positive mental health on medical students' professionalism in an era of high burnout.

Science.gov (United States)

Dyrbye, Liselotte N; Harper, William; Moutier, Christine; Durning, Steven J; Power, David V; Massie, F Stanford; Eacker, Anne; Thomas, Matthew R; Satele, Daniel; Sloan, Jeff A; Shanafelt, Tait D

2012-08-01

Although burnout is associated with erosion of professionalism and serious personal consequences, whether positive mental health can enhance professionalism and how it shapes personal experience remain poorly understood. The study simultaneously explores the relationship between positive mental health and burnout with professionalism and personal experience. The authors surveyed 4,400 medical students at seven U.S. medical schools in 2009 to assess mental health (categorized as languishing, moderate, and flourishing) and burnout. Additional items explored professional behaviors, beliefs, suicidal ideation, and serious thoughts of dropping out. A total of 2,682/4,400 (61%) responded. Prevalence of suicidal ideation (55/114 [48.2%], 281/1,128 [24.9%], and 127/1,409 [9.1%]) and serious thoughts of dropping out (15/114 [13.2%], 30/1,128 [2.7%], and 14/1,409 [1.0%]) decreased as mental health improved from languishing, moderate, and flourishing, respectively (all P mental health persisted independent of burnout (all P mental health improved, the prevalence of unprofessional behaviors (i.e., cheating and dishonest behaviors) also declined, whereas students' altruistic beliefs regarding physicians' responsibility toward society improved. For example, 33/113 (29.2%), 426/1,120 (38.0%), and 718/1,391 (51.6%) of students with languishing, moderate, and flourishing mental health endorsed all five altruistic professional beliefs (P mental health persisted among students with burnout, whereas fewer relationships were found among students without burnout. Findings suggest that positive mental health attenuates some adverse consequences of burnout. Medical student wellness programs should aspire to prevent burnout and promote mental health.

Effectiveness of a positive psychology intervention combined with cognitive behavioral therapy in university students

Directory of Open Access Journals (Sweden)

Rosario-Josefa Marrero

Full Text Available The aim of this study was to design and implement a positive intervention combined with cognitive-behavioral therapy to enhance subjective and psychological well-being and other positive functioning constructs in a convenience sample. Participants analysed were 48 university students (mean age 22.25, 25 assigned nonrandomized to intervention condition and 23 to no-treatment waiting-list control condition. All participants were assessed pre- and post-intervention to test the treatment program effectiveness. Repeated-measures ANCOVAs, controlling baseline differences between the two groups, indicated that the intervention group reported greater social support after the intervention period than the waiting-list control group. Within-group differences were found for happiness, selfacceptance, positive relations with others, optimism, and self-esteem in the intervention group; these differences did not appear in the waiting-list control group. These findings suggest the limited capacity of this intervention program for improving well-being through positive activities combined with cognitive-behavioral therapy. Future research should analyse what kind of activities could be more effective in promoting well-being depending on the characteristics of participants.

Experimental investigation of a reacting transverse jet in a high pressure oscillating vitiated crossflow

Science.gov (United States)

Fugger, Christopher A.

Staged combustion is one design approach in a gas turbine engine to reduce pollutant emission levels. In axially staged combustion, portions of the air and fuel are injected downstream of a lean premixed low NOx primary combustion zone. The gas residence time at elevated temperatures is decreased resulting in lower thermal NOx, and the reduced oxygen and high temperature vitiated primary zone flow further help to reduce pollutant emissions and quickly complete combustion. One implementation of axially staged combustion is transverse fuel jet injection. An important consideration for staged combustion systems, though, is how the primary and secondary combustion zones can couple through the acoustic resonances of the chamber. These couplings can lead to additional source terms that pump energy into the resonant acoustic field and help sustain the high-amplitude combustor pressure oscillations. An understanding of these couplings is important so that it may be possible to design a secondary combustion system that provides inherent damping to the combustor system. To systematically characterize the coupling of a reacting jet in unsteady crossflow in detail, the effects of an an unsteady pressure flowfield and an unsteady velocity flowfield are separately investigated. An optically accessible resonant combustion chamber was designed and built as part of this work to generate a standing wave unsteady vitiated crossflow at a chamber pressure of 0.9 MPa. The location of transverse jet injection corresponds to one of two locations, where one location is the pressure node and the other location the pressure anti-node of the resonant chamber acoustic mode. The injection location is optically accessible, and the dynamic interactions between the transverse jet flow and the 1st and 2nd axial combustor modes are measured using 10 kHz OH-PLIF and 2D PIV. This document analyzes five test cases: two non-reacting jets and three reacting jets. All cases correspond to jet injection

LES-ODT Simulations of Turbulent Reacting Shear Layers

Science.gov (United States)

Hoffie, Andreas; Echekki, Tarek

2012-11-01

Large-eddy simulations (LES) combined with the one-dimensional turbulence (ODT) simulations of a spatially developing turbulent reacting shear layer with heat release and high Reynolds numbers were conducted and compared to results from direct numerical simulations (DNS) of the same configuration. The LES-ODT approach is based on LES solutions for momentum on a coarse grid and solutions for momentum and reactive scalars on a fine ODT grid, which is embedded in the LES computational domain. The shear layer is simulated with a single-step, second-order reaction with an Arrhenius reaction rate. The transport equations are solved using a low Mach number approximation. The LES-ODT simulations yield reasonably accurate predictions of turbulence and passive/reactive scalars' statistics compared to DNS results.

Medical Students' Exposure to the Humanities Correlates with Positive Personal Qualities and Reduced Burnout: A Multi-Institutional U.S. Survey.

Science.gov (United States)

Mangione, Salvatore; Chakraborti, Chayan; Staltari, Giuseppe; Harrison, Rebecca; Tunkel, Allan R; Liou, Kevin T; Cerceo, Elizabeth; Voeller, Megan; Bedwell, Wendy L; Fletcher, Keaton; Kahn, Marc J

2018-05-01

Literature, music, theater, and visual arts play an uncertain and limited role in medical education. One of the arguments often advanced in favor of teaching the humanities refers to their capacity to foster traits that not only improve practice, but might also reduce physician burnout-an increasing scourge in today's medicine. Yet, research remains limited. To test the hypothesis that medical students with higher exposure to the humanities would report higher levels of positive physician qualities (e.g., wisdom, empathy, self-efficacy, emotional appraisal, spatial skills), while reporting lower levels of negative qualities that are detrimental to physician well-being (e.g., intolerance of ambiguity, physical fatigue, emotional exhaustion, and cognitive weariness). An online survey. All students enrolled at five U.S. medical schools during the 2014-2015 academic year were invited by email to take part in our online survey. Students reported their exposure to the humanities (e.g., music, literature, theater, visual arts) and completed rating scales measuring selected personal qualities. In all, 739/3107 medical students completed the survey (23.8%). Regression analyses revealed that exposure to the humanities was significantly correlated with positive personal qualities, including empathy (p humanities and both a higher level of students' positive qualities and a lower level of adverse traits. These findings may carry implications for medical school recruitment and curriculum design. "[Science and humanities are] twin berries on one stem, grievous damage has been done to both in regarding [them]... in any other light than complemental." (William Osler, Br Med J. 1919;2:1-7).

Detecting and Reacting to Change: The Effect of Exposure to Narrow Categorizations

Science.gov (United States)

Chakravarti, Amitav; Fang, Christina; Shapira, Zur

2011-01-01

The ability to detect a change, to accurately assess the magnitude of the change, and to react to that change in a commensurate fashion are of critical importance in many decision domains. Thus, it is important to understand the factors that systematically affect people's reactions to change. In this article we document a novel effect: Decision…

Developing Training Programs to Enhance Positive Attitude toward the ASEAN Community and Self-responsibility For Students in the 6th Grade Naku Distric Kalasin

Directory of Open Access Journals (Sweden)

Siriporn Chooarerom

2016-09-01

Full Text Available The purposes of this study were to ; 1 Study the status and problem of an through attitude the ASEAN community for grade 6 students. 2 Develop training programs to enhance their positive attitude towards the ASEAN community and self-responsibility for grade 6 students. 3 Experiment training program to enhance their positive attitude towards the ASEAN community and self-responsibility for grade 6 students. The samples of this study were 21 students. They were selected though cluster random sampling method. The research instruments used in the study were the Training programs to enhance their positive attitude towards the ASEAN community and self-responsibility. Surveys of problems from the event ASEAN week. Lenarning ASEAN. Measuring a positive attitude towards the ASEAN community scale with discriminating power ranging 0.375 – 0.793 and Measuring self-responsibility scale with discriminating power ranging 0.411 – 0.893 and a reliability of 0.973. The statistics used for analyzing the collected data were mean, standard deviation, and One-way repeated measure MANOVA The study showed that 1 Study of the attitude of the ASEAN community condition survey found that teachers have trouble understanding, Interested to attend the event and have admired and awareness in preparation the ASEAN community, the levels are minimal. The students realized in preparation, understanding about . Attention to participation and appreciation the ASEAN community, the levels are minimal 2 Training programs to enhance their positive attitude toward the ASEAN community and self-responsibility for grade 6 students was created by. Activities focus on the students involved and take action. Remove group activities used in the event. Stage one consists of two steps leading to the involvement step 3 step 4 step by step analysis and application of the five-stage process and evaluation. By 5 experts have evaluated the overall level more appropriate. 3 Students attend their

Large Eddy Simulation of Spatially Developing Turbulent Reacting Shear Layers with the One-Dimensional Turbulence Model

Science.gov (United States)

Hoffie, Andreas Frank

Large eddy simulation (LES) combined with the one-dimensional turbulence (ODT) model is used to simulate spatially developing turbulent reacting shear layers with high heat release and high Reynolds numbers. The LES-ODT results are compared to results from direct numerical simulations (DNS), for model development and validation purposes. The LES-ODT approach is based on LES solutions for momentum and pressure on a coarse grid and solutions for momentum and reactive scalars on a fine, one-dimensional, but three-dimensionally coupled ODT subgrid, which is embedded into the LES computational domain. Although one-dimensional, all three velocity components are transported along the ODT domain. The low-dimensional spatial and temporal resolution of the subgrid scales describe a new modeling paradigm, referred to as autonomous microstructure evolution (AME) models, which resolve the multiscale nature of turbulence down to the Kolmogorv scales. While this new concept aims to mimic the turbulent cascade and to reduce the number of input parameters, AME enables also regime-independent combustion modeling, capable to simulate multiphysics problems simultaneously. The LES as well as the one-dimensional transport equations are solved using an incompressible, low Mach number approximation, however the effects of heat release are accounted for through variable density computed by the ideal gas equation of state, based on temperature variations. The computations are carried out on a three-dimensional structured mesh, which is stretched in the transverse direction. While the LES momentum equation is integrated with a third-order Runge-Kutta time-integration, the time integration at the ODT level is accomplished with an explicit Forward-Euler method. Spatial finite-difference schemes of third (LES) and first (ODT) order are utilized and a fully consistent fractional-step method at the LES level is used. Turbulence closure at the LES level is achieved by utilizing the Smagorinsky

Experiences in Sense Making: Health Science Students' "I"-Positioning in an Online Philosophy of Science Course

Science.gov (United States)

Arvaja, Maarit

2015-01-01

This article reports on a qualitative study on the dialogical approach to learning in the context of higher education. The aim was to shed light on the "I"-Position and multivoicedness in students' identity building and to provide empirical substantiation for these theoretical constructs, focusing especially on the connection between…

Applied patent RFID systems for building reacting HEPA air ventilation system in hospital operation rooms.

Science.gov (United States)

Lin, Jesun; Pai, Jar-Yuan; Chen, Chih-Cheng

2012-12-01

RFID technology, an automatic identification and data capture technology to provide identification, tracing, security and so on, was widely applied to healthcare industry in these years. Employing HEPA ventilation system in hospital is a way to ensure healthful indoor air quality to protect patients and healthcare workers against hospital-acquired infections. However, the system consumes lots of electricity which cost a lot. This study aims to apply the RFID technology to offer a unique medical staff and patient identification, and reacting HEPA air ventilation system in order to reduce the cost, save energy and prevent the prevalence of hospital-acquired infection. The system, reacting HEPA air ventilation system, contains RFID tags (for medical staffs and patients), sensor, and reacting system which receives the information regarding the number of medical staff and the status of the surgery, and controls the air volume of the HEPA air ventilation system accordingly. A pilot program was carried out in a unit of operation rooms of a medical center with 1,500 beds located in central Taiwan from Jan to Aug 2010. The results found the air ventilation system was able to function much more efficiently with less energy consumed. Furthermore, the indoor air quality could still keep qualified and hospital-acquired infection or other occupational diseases could be prevented.

Positive and Negative Affectivity as Mediator and Moderator of the Relationship between Optimism and Life Satisfaction in Turkish University Students

Science.gov (United States)

Kapikiran, Necla Acun

2012-01-01

The main purpose of this study is to examine the mediator and moderator role of positive and negative affectivity variables on the relationship between optimism and life satisfaction in university students. 397 university students, ranging in age from 18 to 27 (M = 20.98), attending different departments of the Faculty of Education, at Pamukkale…

Relationship of self-esteem and happiness from the positive psychology among intercultural nursing students

OpenAIRE

Marco Alberto Núñez Ramírez; Gloria Esthela González Quirarte; Rosario del Carmén Realpozo Reyes

2015-01-01

Introduction: There are contradictions on the relationship between self-esteem and happiness: it exists for some researches, for others it does not, and even some argue that self-esteem affects happiness. These variables are elementary for the practice of Nursing; however, their study is small within intercultural environments. The objective of this research is to know the association between self-esteem and happiness among Intercultural Nursing students from the positive psychology.Method: A...

A Two-Temperature Open-Source CFD Model for Hypersonic Reacting Flows, Part Two: Multi-Dimensional Analysis †

Directory of Open Access Journals (Sweden)

Vincent Casseau

2016-12-01

Full Text Available hy2Foam is a newly-coded open-source two-temperature computational fluid dynamics (CFD solver that has previously been validated for zero-dimensional test cases. It aims at (1 giving open-source access to a state-of-the-art hypersonic CFD solver to students and researchers; and (2 providing a foundation for a future hybrid CFD-DSMC (direct simulation Monte Carlo code within the OpenFOAM framework. This paper focuses on the multi-dimensional verification of hy2Foam and firstly describes the different models implemented. In conjunction with employing the coupled vibration-dissociation-vibration (CVDV chemistry–vibration model, novel use is made of the quantum-kinetic (QK rates in a CFD solver. hy2Foam has been shown to produce results in good agreement with previously published data for a Mach 11 nitrogen flow over a blunted cone and with the dsmcFoam code for a Mach 20 cylinder flow for a binary reacting mixture. This latter case scenario provides a useful basis for other codes to compare against.

Numerical Investigation into CO Emission, O Depletion, and Thermal Decomposition in a Reacting Slab

Directory of Open Access Journals (Sweden)

O. D. Makinde

2011-01-01

Full Text Available The emission of carbon dioxide (CO2 is closely associated with oxygen (O2 depletion, and thermal decomposition in a reacting stockpile of combustible materials like fossil fuels (e.g., coal, oil, and natural gas. Moreover, it is understood that proper assessment of the emission levels provides a crucial reference point for other assessment tools like climate change indicators and mitigation strategies. In this paper, a nonlinear mathematical model for estimating the CO2 emission, O2 depletion, and thermal stability of a reacting slab is presented and tackled numerically using a semi-implicit finite-difference scheme. It is assumed that the slab surface is subjected to a symmetrical convective heat and mass exchange with the ambient. Both numerical and graphical results are presented and discussed quantitatively with respect to various parameters embedded in the problem.

Modeling and design of reacting systems with phase transfer catalysis

DEFF Research Database (Denmark)

Piccolo, Chiara; Hodges, George; Piccione, Patrick M.

2011-01-01

Issues related to the design of biphasic (liquid) catalytic reaction operations are discussed. A chemical system involving the reaction of an organic-phase soluble reactant (A) with an aqueous-phase soluble reactant (B) in the presence of phase transfer catalyst (PTC) is modeled and based on it......, some of the design issues related to improved reaction operation are analyzed. Since the solubility of the different forms of the PTC in the organic solvent affects ultimately the catalyst partition coefficients, therefore, the organic solvent plays an important role in the design of PTC-based reacting...

Mathematical aspects of reacting and diffusing systems

CERN Document Server

Fife, Paul C

1979-01-01

Modeling and analyzing the dynamics of chemical mixtures by means of differ- tial equations is one of the prime concerns of chemical engineering theorists. These equations often take the form of systems of nonlinear parabolic partial d- ferential equations, or reaction-diffusion equations, when there is diffusion of chemical substances involved. A good overview of this endeavor can be had by re- ing the two volumes by R. Aris (1975), who himself was one of the main contributors to the theory. Enthusiasm for the models developed has been shared by parts of the mathematical community, and these models have, in fact, provided motivation for some beautiful mathematical results. There are analogies between chemical reactors and certain biological systems. One such analogy is rather obvious: a single living organism is a dynamic structure built of molecules and ions, many of which react and diffuse. Other analogies are less obvious; for example, the electric potential of a membrane can diffuse like a chemical, and ...

Students' Communication and Positive Outcomes in College Classrooms

Science.gov (United States)

AlKandari, Nabila

2012-01-01

The purpose of this study was to determine students' communication in the college classroom through faculty-led methods of enhancing classroom participation. The students in this study perceived that faculty members work to engage them in various classroom activities and enhance their participation through discussions, debates, dialogue, group…

Large eddy simulation and direct numerical simulation of high speed turbulent reacting flows

Science.gov (United States)

Adumitroaie, V.; Frankel, S. H.; Madnia, C. K.; Givi, P.

The objective of this research is to make use of Large Eddy Simulation (LES) and Direct Numerical Simulation (DNS) for the computational analyses of high speed reacting flows. Our efforts in the first phase of this research conducted within the past three years have been directed in several issues pertaining to intricate physics of turbulent reacting flows. In our previous 5 semi-annual reports submitted to NASA LaRC, as well as several technical papers in archival journals, the results of our investigations have been fully described. In this progress report which is different in format as compared to our previous documents, we focus only on the issue of LES. The reason for doing so is that LES is the primary issue of interest to our Technical Monitor and that our other findings were needed to support the activities conducted under this prime issue. The outcomes of our related investigations, nevertheless, are included in the appendices accompanying this report. The relevance of the materials in these appendices are, therefore, discussed only briefly within the body of the report. Here, results are presented of a priori and a posterior analyses for validity assessments of assumed Probability Density Function (PDF) methods as potential subgrid scale (SGS) closures for LES of turbulent reacting flows. Simple non-premixed reacting systems involving an isothermal reaction of the type A + B yields Products under both chemical equilibrium and non-equilibrium conditions are considered. A priori analyses are conducted of a homogeneous box flow, and a spatially developing planar mixing layer to investigate the performance of the Pearson Family of PDF's as SGS models. A posteriori analyses are conducted of the mixing layer using a hybrid one-equation Smagorinsky/PDF SGS closure. The Smagorinsky closure augmented by the solution of the subgrid turbulent kinetic energy (TKE) equation is employed to account for hydrodynamic fluctuations, and the PDF is employed for modeling the

Capturing Student Mathematical Engagement through Differently Enacted Classroom Practices: Applying a Modification of Watson's Analytical Tool

Science.gov (United States)

Patahuddin, Sitti Maesuri; Puteri, Indira; Lowrie, Tom; Logan, Tracy; Rika, Baiq

2018-01-01

This study examined student mathematical engagement through the intended and enacted lessons taught by two teachers in two different middle schools in Indonesia. The intended lesson was developed using the ELPSA learning design to promote mathematical engagement. Based on the premise that students will react to the mathematical tasks in the forms…

Controlling for Prior Attainment Reduces the Positive Influence that Single-Gender Classroom Initiatives Exert on High School Students' Scholastic Achievements.

Science.gov (United States)

Pennington, Charlotte R; Kaye, Linda K; Qureshi, Adam W; Heim, Derek

2018-01-01

Research points to the positive impact that gender-segregated schooling and classroom initiatives exert on academic attainment. An evaluation of these studies which reveal positive effects highlights, however, that students are typically selectively assigned to single- or mixed-gender instructional settings, presenting a methodological confound. The current study controls for students' prior attainment to appraise the efficacy of a single-gender classroom initiative implemented in a co-educational high school in the United Kingdom. Secondary data analysis (using archived data) was performed on 266 middle-ability, 11-12 year-old students' standardized test scores in Languages (English, foreign language), STEM-related (Mathematics, Science, Information and Communication Technology), and Non-STEM subjects (art, music, drama). Ninety-eight students (54, 55% female) were taught in single-gender and 168 (69, 41% female) in mixed-gender classrooms. Students undertook identical tests irrespective of classroom type, which were graded in accordance with U.K national curriculum guidelines. Controlling for students' prior attainment, findings indicate that students do not appear to benefit from being taught in single-gender relative to mixed-gender classrooms in Language and STEM-related subjects. Young women benefitted from being taught in mixed-gender relative to single-gender classes for Non-STEM subjects. However, when prior ability is not controlled for, the intervention appears to be effective for all school subjects, highlighting the confounding influence of selective admissions. These findings suggest that gender-segregated classroom initiatives may not bolster students' grades. It is argued that studies that do not control for selection effects may tell us little about the effectiveness of such interventions on scholastic achievement.

Reacting to different types of concept drift: the Accuracy Updated Ensemble algorithm.

Science.gov (United States)

Brzezinski, Dariusz; Stefanowski, Jerzy

2014-01-01

Data stream mining has been receiving increased attention due to its presence in a wide range of applications, such as sensor networks, banking, and telecommunication. One of the most important challenges in learning from data streams is reacting to concept drift, i.e., unforeseen changes of the stream's underlying data distribution. Several classification algorithms that cope with concept drift have been put forward, however, most of them specialize in one type of change. In this paper, we propose a new data stream classifier, called the Accuracy Updated Ensemble (AUE2), which aims at reacting equally well to different types of drift. AUE2 combines accuracy-based weighting mechanisms known from block-based ensembles with the incremental nature of Hoeffding Trees. The proposed algorithm is experimentally compared with 11 state-of-the-art stream methods, including single classifiers, block-based and online ensembles, and hybrid approaches in different drift scenarios. Out of all the compared algorithms, AUE2 provided best average classification accuracy while proving to be less memory consuming than other ensemble approaches. Experimental results show that AUE2 can be considered suitable for scenarios, involving many types of drift as well as static environments.

Sleep hygiene and sleep quality as predictors of positive and negative dimensions of mental health in college students

Directory of Open Access Journals (Sweden)

Hannah Peach

2016-12-01

Full Text Available College students are one of the top at-risk groups for chronic sleep loss and poor sleep quality, which can yield deleterious effects on health. The college population is also notorious for poor sleep hygiene, or modifiable behaviors that promote sufficient sleep quantity and quality. Research suggests sleep can impact both positive and negative aspects of college mental health, but few studies have examined the effects of sleep on both subjective well-being and depression within one model. Further, little research has tested sleep hygiene as a modifiable risk factor for positive and mental aspects of health. The present study tested structural equation models in which sleep quality either partially or fully mediated the effects of sleep hygiene behaviors on depression and poor subjective well-being. A partial mediation model (CFI = .98, TLI = .94, RMSEA = .08 suggested a very good-fitting model, and sleep hygiene yielded significant direct and indirect effects on both depression and subjective well-being. Findings suggest intervention efforts targeting the improvement of sleep hygiene and sleep quality among college students may yield effects on student well-being, which can improve mental health among this at-risk population.

School Shootings and Student Performance

OpenAIRE

Panu Poutvaara; Olli Ropponen

2010-01-01

In this paper, we study how high school students reacted to the shocking news of a school shooting. The shooting coincided with national high-school matriculation exams. As there were exams both before and after the shooting, we can use a difference-in-differences analysis to uncover how the school shooting affected the test scores compared to previous years. We find that the average performance of young men declined due to the school shooting, whereas we do not observe a similar pattern for ...

Effectiveness of a Positive Youth Development Program for Secondary 1 Students in Macau: A Pilot Study

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Andrew L. Luk

2011-01-01

Full Text Available With the rapid change to society after the opening of the gaming licensure by the government and the potential attraction to youth caused by the casinos, a well-tested and comprehensive adolescent development program previously established in Hong Kong was adopted and modified to be used in Macau. It is expected to help our adolescents achieve positive growth and be better prepared for future challenges. The aim of this study is to examine the effectiveness of the modified positive youth development program for Secondary 1 Students in Macau. Specifically, two research questions will be asked: (1 How does the positive youth development program affect positive growth for youth in Macau?; and (2 Is youth growth related to different factors such as gender, age, family financial condition, and parents' marital status? A mixed research method with a quantitative approach using a pre- and post-test pre-experimental design, and a qualitative approach using a focus group for the participants is carried out. The study sample included 232 Secondary 1 Students in two schools. The objective outcome evaluation showed that, overall, 123 (53% of the participants had significant improvement on the total scores of the Chinese Positive Youth Development Scale (CPYDS and the two composite scores. However, there were some increases in the behavioral intention of alcohol drinking and participation in gambling activities. The “happiness of the family life” was found to have significant differences in the score of the CPYDS, which was shown to be the factor related to youth growth. The focus group interviews revealed that both positive and negative feedback was obtained from the discussion; however, the majority of the participants perceived benefits to themselves from the program. With reference to the principle of triangulation, the present study suggests that, based on both quantitative and qualitative evaluation findings, it should be concluded that there is

The role of positive/negative outcome expectancy and refusal self-efficacy of Internet use on Internet addiction among college students in Taiwan.

Science.gov (United States)

Lin, Min-Pei; Ko, Huei-Chen; Wu, Jo Yung-Wei

2008-08-01

Based on Bandura's social cognitive theory, this study was designed to examine positive and negative outcome expectancy and refusal self-efficacy of Internet use and their contribution to Internet addiction among college students by using hierarchical multiple regression analyses in a cross-sectional study design. Schools were first stratified into technical or nontechnical colleges and then into seven majors. A cluster random sampling by department was further applied to randomly choose participants from each major. A representative sample of 4,456 college students participated in this study. The Outcome Expectancy and Refusal Self-Efficacy of Internet Use Questionnaire and the Chen Internet Addiction Scale were used to assess the cognitive factors and the levels of Internet addiction. Results showed that both positive outcome expectancy and negative outcome expectancy were significantly and positively correlated with Internet addiction, and refusal self-efficacy of Internet use was significantly and negatively related to Internet addiction. Further analyses revealed that refusal self-efficacy of Internet use directly and negatively predicted Internet addiction. Moreover, we discovered that positive outcome expectancy positively predicted Internet addiction via refusal self-efficacy of Internet use; however, surprisingly, negative outcome expectancy had both a direct and indirect positive relationship in predicting Internet addiction via the refusal self-efficacy of Internet use. These results give empirical evidence to verify the theoretical effectiveness of the three cognitive factors to Internet addiction and should be incorporated when designing prevention programs and strategies for Internet addicted college students.

Students’ strategies for position-taking in transnational education

DEFF Research Database (Denmark)

Li, Jin Hui

2016-01-01

as a field of struggle. The article discusses in depth how different student positions are led by the dispositions of having a certain nationality combined with international experiences/travel mobility. It will furthermore also discuss how the dispositions of national academic capital are related......The article illuminates the positions distributed and the strategies for position-taking which students pursue in order to transform or preserve their positions in a classroom with a transnational context where students have different national and international education experiences. Furthermore......, how their positions are related to their aspirations for the future will be elucidated. Based on interviews with Danish and Chinese students enrolled at a Sino-Danish university situated in Beijing, the article identifies four different navigation strategies for position-taking in such a classroom...

Prospective assessment of the false positive rate of the Australian snake venom detection kit in healthy human samples.

Science.gov (United States)

Nimorakiotakis, Vasilios Bill; Winkel, Kenneth D

2016-03-01

The Snake Venom Detection Kit (SVDK; bioCSL Pty Ltd, Australia) distinguishes venom from the five most medically significant snake immunotypes found in Australia. This study assesses the rate of false positives that, by definition, refers to a positive assay finding in a sample from someone who has not been bitten by a venomous snake. Control unbroken skin swabs, simulated bite swabs and urine specimens were collected from 61 healthy adult volunteers [33 males and 28 females] for assessment. In all controls, simulated bite site and urine samples [a total of 183 tests], the positive control well reacted strongly within one minute and no test wells reacted during the ten minute incubation period. However, in two urine tests, the negative control well gave a positive reaction (indicating an uninterpretable test). A 95% confidence interval for the false positive rate, on a per-patient rate, derived from the findings of this study, would extend from 0% to 6% and, on a per-test basis, it would be 0-2%. It appears to be a very low incidence (0-6%) of intrinsic true false positives for the SVDK. The clinical impresssion of a high SVDK false positive rate may be mostly related to operator error. Crown Copyright © 2015. Published by Elsevier Ltd. All rights reserved.

Efficient removal of sulfur hexafluoride (SF6) through reacting with recycled electroplating sludge.

Science.gov (United States)

Zhang, Jia; Zhou, Ji Zhi; Liu, Qiang; Qian, Guangren; Xu, Zhi Ping

2013-06-18

This paper reports that recycled electroplating sludge is able to efficiently remove greenhouse gas sulfur hexafluoride (SF6). The removal process involves various reactions of SF6 with the recycled sludge. Remarkably, the sludge completely removed SF6 at a capacity of 1.10 mmol/g (SF6/sludge) at 600 °C. More importantly, the evolved gases were SO2, SiF4, and a limited amount of HF, with no toxic SOF4, SO2F2, or SF4 being detected. These generated gases can be readily captured and removed by NaOH solution. The reacted solids were further found to be various metal fluorides, thus revealing that SF6 removal takes place by reacting with various metal oxides and silicate in the sludge. Moreover, the kinetic investigation revealed that the SF6 reaction with the sludge is a first-order chemically controlled process. This research thus demonstrates that the waste electroplating sludge can be potentially used as an effective removal agent for one of the notorious greenhouse gases, SF6.

“Surfing in the cell” - an investigative game for teaching cytoskeleton concepts for undergraduate students

OpenAIRE

Alves Gomes, G.

2009-01-01

The educational role of games becomes evident as students are more active, able to take decisions, solve problems and react to the results of their own decisions. The educative board game Discovering the Cell is based on problem-solving learning. This game challenges students to collect, discuss and interpret clues in order to decipher a question. In this work we evaluated the game as a tool for teaching health sciences undergraduate students from Rio de Janeiro. In a questionnaire-based anal...

Making a Positive Impression about the Mission of an Urban, Catholic University: Gender, First-Generation College, and Religious Preference Comparisons

Science.gov (United States)

Ferrari, Joseph R.; Mader, Megan C.; Milner, Lauren A.; Temperato, John R.

2010-01-01

This study investigates how research participants' desire to make a positive social impression may affect their responses to survey questions. Specifically, participants may react in socially appropriate ways to create a positive social impression for those persons reviewing their responses. This concept is termed "impression management," or more…

DESIGN, FABRICATION AND TEST OF THE REACT AND WIND, NB(3)SN, LDX FLOATING COIL CONDUCTOR

International Nuclear Information System (INIS)

SMITH, B.A.; MICHAEL, P.C.; MINERVINI, J.V.; TAKAYASU, M.; SCHULTZ, J.H.; GREGORY, E.; PYON, T.; SAMPSON, W.B.; GHOSH, A.; SCANLAN, R.

2000-01-01

The Levitated Dipole Experiment (LDX) is a novel approach for studying magnetic confinement of a fusion plasma. In this approach, a superconducting ring coil is magnetically levitated for up to 8 hours a day in the center of a 5 meter diameter vacuum vessel. The levitated coil, with on-board helium supply, is called the gloating Coil (F-Coil). Although the maximum field at the coil is only 5.3 tesla, a react-and-wind Nb 3 Sn conductor was selected because the relatively high critical temperature will enable the coil to remain levitated while it warms from 5 K to 10 K. Since pre-reacted Nb 3 Sn tape is no longer commercially available, a composite conductor was designed that contains an 18 strand Nb 3 Sn Rutherford cable. The cable was reacted and then soldered into a structural copper channel that completes the conductor and also provides quench protection. The strain state of the cable was continuously controlled during fabrication steps such as: soldering into the copper channel, spooling, and coil winding, to prevent degradation of the critical current. Measurements of strand and cable critical currents are reported, as well as estimates of the effect of fabrication, winding and operating strains on critical current

Money Worries Keep Students Going to Campus Food Banks

Science.gov (United States)

Sandoval, Timothy

2012-01-01

Hunger on campus is part of a lingering national problem that grew after the financial crisis that began in late 2007. In an unforgiving economy, many students across the country struggle not only to pay tuition but also to buy food. Colleges and nonprofit groups have noticed, and more are reacting. Food pantries are cropping up on two-year and…

Realistic Creativity Training for Innovation Practitioners: The Know-Recognize-React Model

DEFF Research Database (Denmark)

Valgeirsdóttir, Dagný; Onarheim, Balder

2017-01-01

As creativity becomes increasingly recognized as important raw material for innovation, the importance of identifying ways to increase practitioners’ creativity through rigorously designed creativity training programs is highlighted. Therefore we sat out to design a creativity training program...... the transdisciplinary study described in this paper. Co-creation was employed as a method to ensure the three layers of focus would be taken into consideration. The result is a program called Creative Awareness Training which is based on the new Know-Recognize-React model....

Instructor Attitudes toward Students: Job Satisfaction and Student Outcomes

Science.gov (United States)

Wilson, Janie H.

2008-01-01

The relational teaching approach suggests that instructors should develop positive relationships with students, with benefits including greater job satisfaction. One way to build positive relationships with students involves exhibiting immediacy behaviors. The author examined relationships among professors' attitudes toward students, immediacy…

Individual differences in the impact of vicarious racism: African American students react to the George Zimmerman trial.

Science.gov (United States)

Mason, Tyler B; Maduro, Ralitsa S; Derlega, Valerian J; Hacker, Desi S; Winstead, Barbara A; Haywood, Jacqueline E

2017-04-01

This research focused on how race-based rejection sensitivity (RS-Race) and components of racial identity intensify negative psychological reactions to an incident of vicarious racism. We examined how these individual difference variables directly and/or indirectly predicted African American students' reactions to the trial of George Zimmerman in the killing of the African American teenager, Trayvon Martin. In Study 1, 471 African American students completed measures of RS-Race, thought intrusions about the Zimmerman trial, and outcome variables (negative affect about the Zimmerman trial and forgiveness for Mr. Zimmerman). In Study 2, 304 African American students completed measures of racial identity (centrality, private regard, and public regard), thought intrusions about the Zimmerman trial, negative affect, and forgiveness. In Study 1, higher RS-Race was either directly and/or indirectly (via thought intrusions) related to more negative affect and lower forgiveness. In Study 2, high racial centrality and low public regard either directly and/or indirectly (via thought intrusions) predicted more negative affect and lower forgiveness. RS-Race and specific components of racial identity are likely to sensitize African Americans to incidents of racism that happen to other African Americans, leading to negative psychological reactions when these events occur. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

The Relationship of Level of Positive Mental Health with Current Mental Disorders in Predicting Suicidal Behavior and Academic Impairment in College Students

Science.gov (United States)

Keyes, Corey L. M.; Eisenberg, Daniel; Perry, Geraldine S.; Dube, Shanta R.; Kroenke, Kurt; Dhingra, Satvinder S.

2012-01-01

Objective: To investigate whether level of positive mental health complements mental illness in predicting students at risk for suicidal behavior and impaired academic performance. Participants: A sample of 5,689 college students participated in the 2007 Healthy Minds Study and completed an Internet survey that included the Mental Health…

A framework for the design of reacting systems with phase transfer catalysis

DEFF Research Database (Denmark)

Piccolo, Chiara; Shaw, Andrew; Hodges, George

2012-01-01

A generic modelling framework for phase transition catalyst based reacting systems has been developed and converted into a software tool. The modelling framework accommodates models of different types representing different sub-systems of the PTCbased reactive system; databases of model parameters...... and carefully collected and checked (for thermodynamic consistency) experimentally measured data. The models, data and software have been tested on various PTC-based reactive systems. Illustrative examples are provided....

Trauma exposure and heavy drinking and drug use among college students: Identifying the roles of negative and positive affect lability in a daily diary study.

Science.gov (United States)

Weiss, Nicole H; Bold, Krysten W; Contractor, Ateka A; Sullivan, Tami P; Armeli, Stephen; Tennen, Howard

2018-04-01

Trauma exposure is linked to heavy drinking and drug use among college students. Extant research reveals positive associations between negative affect lability and both trauma exposure and alcohol use. This study aimed to extend past research by using daily diary methods to test whether (a) individuals with (versus without) trauma exposure experience greater negative and positive affect lability, (b) negative and positive affect lability are associated with heavy drinking and drug use, and (c) negative and positive affect lability mediate the relations between trauma exposure and heavy drinking and drug use. Participants were 1640 college students (M age=19.2, 54% female, 80% European American) who provided daily diary data for 30days via online surveys. Daily diaries assessed negative and positive affect and substance use (i.e., percent days of heavy drinking, percent days of drug use, total number of drugs used). Individuals with (versus without) a history of trauma exposure demonstrated higher levels of negative and positive affect lability. Negative, but not positive, affect lability was associated with percent days of heavy drinking, percent days of drug use, and total number of drugs used, and mediated the associations between trauma exposure and heavy drinking and drug use outcomes. Findings provide support for the underlying role of negative affect lability in the relations between trauma exposure and heavy drinking and drug use among college students, suggesting that treatments targeting negative affect lability may potentially serve to reduce heavy drinking and drug use among trauma-exposed college students. Copyright © 2017 Elsevier Ltd. All rights reserved.

Implementing Web 2.0 Tools in the Classroom: Four Teachers' Accounts

Science.gov (United States)

Kovalik, Cindy; Kuo, Chia-Ling; Cummins, Megan; Dipzinski, Erin; Joseph, Paula; Laskey, Stephanie

2014-01-01

In this paper, four teachers shared their experiences using the following free Web 2.0 tools with their students: Jing, Wix, Google Sites, and Blogger. The teachers found that students reacted positively to lessons in which these tools were used, and also noted improvements they could make when using them in the future.

Student-generated instructional videos facilitate learning through positive emotions

OpenAIRE

Pirhonen, Juhani; Rasi, Päivi

2017-01-01

The central focus of this study is a learning method in which university students produce instructional videos about the content matter as part of their learning process, combined with other learning assignments. The rationale for this is to promote a more multimodal pedagogy, and to provide students opportunities for a more learner-centred, motivating, active, engaging and productive role in their learning process. As such we designed a ‘video course’ where the students needed to produce an ...

Effects of radiative heat transfer on the turbulence structure in inert and reacting mixing layers

International Nuclear Information System (INIS)

Ghosh, Somnath; Friedrich, Rainer

2015-01-01

We use large-eddy simulation to study the interaction between turbulence and radiative heat transfer in low-speed inert and reacting plane temporal mixing layers. An explicit filtering scheme based on approximate deconvolution is applied to treat the closure problem arising from quadratic nonlinearities of the filtered transport equations. In the reacting case, the working fluid is a mixture of ideal gases where the low-speed stream consists of hydrogen and nitrogen and the high-speed stream consists of oxygen and nitrogen. Both streams are premixed in a way that the free-stream densities are the same and the stoichiometric mixture fraction is 0.3. The filtered heat release term is modelled using equilibrium chemistry. In the inert case, the low-speed stream consists of nitrogen at a temperature of 1000 K and the highspeed stream is pure water vapour of 2000 K, when radiation is turned off. Simulations assuming the gas mixtures as gray gases with artificially increased Planck mean absorption coefficients are performed in which the large-eddy simulation code and the radiation code PRISSMA are fully coupled. In both cases, radiative heat transfer is found to clearly affect fluctuations of thermodynamic variables, Reynolds stresses, and Reynolds stress budget terms like pressure-strain correlations. Source terms in the transport equation for the variance of temperature are used to explain the decrease of this variance in the reacting case and its increase in the inert case

Students’ strategies for position-taking in transnational education

DEFF Research Database (Denmark)

Li, Jin Hui

2016-01-01

The article illuminates the positions distributed and the strategies for position-taking which students pursue in order to transform or preserve their positions in a classroom with a transnational context where students have different national and international education experiences. Furthermore...

A mathematical model for chemical reactions with actinide elements in the aqueous nitric acid solution: REACT

International Nuclear Information System (INIS)

Tachimori, Shoichi

1990-02-01

A mathematical model of chemical reactions with actinide elements: REACT code, was developed to simulate change of valency states of U, Pu and Np in the aqueous nitric acid solution. Twenty seven rate equations for the redox reactions involving some reductants, disproportionation reactions, and radiolytic growth and decay reaction of nitrous acid were programmed in the code . Eight numerical solution methods such as Porsing method to solve the rate equations were incorporated parallel as options depending on the characteristics of the reaction systems. The present report gives a description of the REACT code, e.g., chemical reactions and their rate equations, numerical solution methods, and some examples of the calculation results. A manual and a source file of the program was attached to the appendix. (author)

The association between Colombian medical students' healthy personal habits and a positive attitude toward preventive counseling: cross-sectional analyses

Science.gov (United States)

Duperly, John; Lobelo, Felipe; Segura, Carolina; Sarmiento, Francisco; Herrera, Deisy; Sarmiento, Olga L; Frank, Erica

2009-01-01

Background Physician-delivered preventive counseling is important for the prevention and management of chronic diseases. Data from the U.S. indicates that medical students with healthy personal habits have a better attitude towards preventive counseling. However, this association and its correlates have not been addressed in rapidly urbanized settings where chronic disease prevention strategies constitute a top public health priority. This study examines the association between personal health practices and attitudes toward preventive counseling among first and fifth-year students from 8 medical schools in Bogotá, Colombia. Methods During 2006, a total of 661 first- and fifth-year medical students completed a culturally adapted Spanish version of the "Healthy Doctor = Healthy Patient" survey (response rate = 78%). Logistic regression analyses were used to assess the association between overall personal practices on physical activity, nutrition, weight control, smoking, alcohol use (main exposure variable) and student attitudes toward preventive counseling on these issues (main outcome variable), stratified by year of training and adjusting by gender and medical training-related factors (basic knowledge, perceived adequacy of training and perception of the school's promotion on each healthy habit). Results The median age and percentage of females for the first- and fifth-year students were 21 years and 59.5% and 25 years and 65%, respectively. After controlling for gender and medical training-related factors, consumption of ≥ 5 daily servings of fruits and/or vegetables, not being a smoker or binge drinker were associated with a positive attitude toward counseling on nutrition (OR = 4.71; CI = 1.6–14.1; p = 0.006 smoking (OR = 2.62; CI = 1.1–5.9; p = 0.022), and alcohol consumption (OR = 2.61; CI = 1.3–5.4; p = 0.009), respectively. Conclusion As for U.S. physician and medical students, a positive association was found between the personal health habits of

Validation of the Factor Structure of the Positive Life Assets Scale for High School Students in Thailand

Science.gov (United States)

Tripathi, Suriyadeo

2018-01-01

The aim of the present study was to determine the factor structure of the Positive Life Assets Scale (PLAS), a new measure to identify both internal and external life assets among high school students in Thailand, and to further examine the usefulness of the PLAS for a comprehensive, developmental, and strengths-based school and community…

The Association between Positive Parenting and Externalizing Behavior.

Science.gov (United States)

Boeldt, Debra L; Rhee, Soo Hyun; Dilalla, Lisabeth F; Mullineaux, Paula Y; Schulz-Heik, R Jay; Corley, Robin P; Young, Susan E; Hewitt, John K

2012-01-01

The present study examined the role of positive parenting on externalizing behaviors in a longitudinal, genetically informative sample. It often is assumed that positive parenting prevents behavior problems in children via an environmentally mediated process. Alternatively, the association may be due to either an evocative gene-environment correlation, in which parents react to children's genetically-influenced behavior in a positive way, or a passive gene-environment correlation, where parents passively transmit a risk environment and the genetic risk factor for the behavioral outcome to their children. The present study estimated the contribution of these processes in the association between positive parenting and children's externalizing behavior. Positive parenting was assessed via observations at ages 7, 9, 14, 24, and 36 months and externalizing behaviors were assessed through parent report at ages 4, 5, 7, 9, 10, 11, and 12 years. The significant association between positive parenting and externalizing behavior was negative, with children of mothers who showed significantly more positive parenting during toddlerhood having lower levels of externalizing behavior in childhood; however, there was not adequate power to distinguish whether this covariation was due to genetic, shared environmental, or nonshared environmental influences.

How do students react to analyzing their own genomes in a whole-genome sequencing course?: outcomes of a longitudinal cohort study.

Science.gov (United States)

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

2015-11-01

Health-care professionals need to be trained to work with whole-genome sequencing (WGS) in their practice. Our aim was to explore how students responded to a novel genome analysis course that included the option to analyze their own genomes. This was an observational cohort study. Questionnaires were administered before (T3) and after the genome analysis course (T4), as well as 6 months later (T5). In-depth interviews were conducted at T5. All students (n = 19) opted to analyze their own genomes. At T5, 12 of 15 students stated that analyzing their own genomes had been useful. Ten reported they had applied their knowledge in the workplace. Technical WGS knowledge increased (mean of 63.8% at T3, mean of 72.5% at T4; P = 0.005). In-depth interviews suggested that analyzing their own genomes may increase students' motivation to learn and their understanding of the patient experience. Most (but not all) of the students reported low levels of WGS results-related distress and low levels of regret about their decision to analyze their own genomes. Giving students the option of analyzing their own genomes may increase motivation to learn, but some students may experience personal WGS results-related distress and regret. Additional evidence is required before considering incorporating optional personal genome analysis into medical education on a large scale.

Acute hepatitis due to Epstein–Barr virus with cross-reacting antibodies to cytomegalovirus

Directory of Open Access Journals (Sweden)

Asli Karadeniz

2018-01-01

Full Text Available Epstein–Barr virus (EBV is the cause of systemic infection known as infectious mononucleosis with classic presentation of fever, oropharyngitis and lymphadenitis. EBV rarely causes acute hepatitis. In this report, we present a 19-year-old patient presented with nausea, fatigue and jaundice. Her physical examination and laboratory tests revealed the diagnosis as acute hepatitis due to EBV with cross-reacting antibodies to cytomegalovirus.

Investigation of the properties of fully reacted unstoichiometric polydimethylsiloxane networks and their extracted network fractions

DEFF Research Database (Denmark)

Frankær, Sarah Maria Grundahl; Jensen, Mette Krog; Bejenariu, Anca Gabriela

2012-01-01

We investigated the linear dynamic response of a series of fully reacted unstoichiometric polydimethylsiloxane (PDMS) networks and of the two corresponding network fractions namely the sol and the washed network. The sol and the washed network were separated by a simple extraction process. This way...

Motivational factors as predictors of student approach to learning

DEFF Research Database (Denmark)

Lassesen, Berit

, little research exploring the possible influences of self-efficacy and test anxiety on study behavior in higher education, and current research stresses the importance of considering both cognitive and motivational factors in higher educational contexts (Dinther et.al., 2010) Increasing our knowledge....... Whether students react with anxiety or with enthusiasm is largely determined by the beliefs that they hold about their own ability. Students are not likely to be drawn towards an active discussion of new meanings if they have little confidence in their own abilities as thinkers. Teachers may think...... that they have no power to influence or enhance the value of a task to the students, but educators naturally play an important role in this process. Presenting the syllabus, setting the stage, and discussing it with the students are fundamental activities that help clarify the objectives and the means...

Fabrication of a Combustion-Reacted High-Performance ZnO Electron Transport Layer with Silver Nanowire Electrodes for Organic Solar Cells.

Science.gov (United States)

Park, Minkyu; Lee, Sang-Hoon; Kim, Donghyuk; Kang, Juhoon; Lee, Jung-Yong; Han, Seung Min

2018-02-28

Herein, a new methodology for solution-processed ZnO fabrication on Ag nanowire network electrode via combustion reaction is reported, where the amount of heat emitted during combustion was minimized by controlling the reaction temperature to avoid damaging the underlying Ag nanowires. The degree of participation of acetylacetones, which are volatile fuels in the combustion reaction, was found to vary with the reaction temperature, as revealed by thermogravimetric and compositional analyses. An optimized processing temperature of 180 °C was chosen to successfully fabricate a combustion-reacted ZnO and Ag nanowire hybrid electrode with a sheet resistance of 30 Ω/sq and transmittance of 87%. A combustion-reacted ZnO on Ag nanowire hybrid structure was demonstrated as an efficient transparent electrode and electron transport layer for the PTB7-Th-based polymer solar cells. The superior electrical conductivity of combustion-reacted ZnO, compared to that of conventional sol-gel ZnO, increased the external quantum efficiency over the entire absorption range, whereas a unique light scattering effect due to the presence of nanopores in the combustion-derived ZnO further enhanced the external quantum efficiency in the 450-550 nm wavelength range. A power conversion efficiency of 8.48% was demonstrated for the PTB7-Th-based polymer solar cell with the use of a combustion-reacted ZnO/Ag NW hybrid transparent electrode.

Positive and negative metacognitions about alcohol use among university students: Psychometric properties of the PAMS and NAMS French versions.

Science.gov (United States)

Gierski, Fabien; Spada, Marcantonio M; Fois, Eveline; Picard, Aurélie; Naassila, Mickaël; Van der Linden, Martial

2015-08-01

Metacognitions about the positive and negative effects of alcohol use have been associated with various patterns of drinking. The aim of the present study was to validate French versions of the Positive Alcohol Metacognitions Scale (PAMS) and the Negative Alcohol Metacognitions Scale (NAMS) developed by Spada and Wells (2008, Addict. Behav. 33, 515) and to investigate the relationship between metacognitions and patterns of alcohol use among university students. Responses of 1600 university students who participated in an internet survey-based study on alcohol use were submitted to confirmatory (N=800, mean age 20.40 years, 45.50% male) and exploratory (N=800, mean age 20.34 years, 45.38% male) factor analyses in two separate samples. Alcohol use, binge drinking and mood were also assessed. In line with the original versions of the scales, results provided support for a two-factor structure of the French PAMS and NAMS. Both scales revealed adequate internal reliability. Good temporal stability was found for the two factors of the NAMS, whereas one factor of the PAMS showed weakness across time. Predictive validity revealed that negative alcohol metacognitions about the uncontrollability of alcohol use were found to be consistently associated with alcohol use and binge drinking, whereas positive metacognitions about alcohol use were found to be differentially associated with alcohol use and binge drinking. The French versions of the PAMS and NAMS exhibited suitable psychometric properties. This study also emphasized the role of metacognitions about alcohol use in drinking behaviour among university students. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

A Finite Element Theory for Predicting the Attenuation of Extended-Reacting Liners

Science.gov (United States)

Watson, W. R.; Jones, M. G.

2009-01-01

A non-modal finite element theory for predicting the attenuation of an extended-reacting liner containing a porous facesheet and located in a no-flow duct is presented. The mathematical approach is to solve separate wave equations in the liner and duct airway and to couple these two solutions by invoking kinematic constraints at the facesheet that are consistent with a continuum theory of fluid motion. Given the liner intrinsic properties, a weak Galerkin finite element formulation with cubic polynomial basis functions is used as the basis for generating a discrete system of acoustic equations that are solved to obtain the coupled acoustic field. A state-of-the-art, asymmetric, parallel, sparse equation solver is implemented that allows tens of thousands of grid points to be analyzed. A grid refinement study is presented to show that the predicted attenuation converges. Excellent comparison of the numerically predicted attenuation to that of a mode theory (using a Haynes 25 metal foam liner) is used to validate the computational approach. Simulations are also presented for fifteen porous plate, extended-reacting liners. The construction of some of the porous plate liners suggest that they should behave as resonant liners while the construction of others suggest that they should behave as broadband attenuators. In each case the finite element theory is observed to predict the proper attenuation trend.

A quasi-linear formulation for chemically reacting compressible mixtures of imperfect gases

Science.gov (United States)

Lentini, D.

2008-01-01

A quasi-linear formulation is proposed for high-speed finite-rate chemically reacting mixtures of imperfect gases, i.e., thermally perfect gases with specific heat varying with temperature. It retains the same formalism of a well-tried counterpart formulation for perfect gases, which has been proven to be suited for application of accurate and fast algorithms. Equations for both quasi-monodimensional flows, and for axisymmetric viscous flows are presented. The approach is based on the definition of an appropriate function F of temperature and concentration, which allows to identify Riemann variables for the flow under consideration; the formulation also includes equations for the entropy and the mass fractions of the N chemical species present in the reacting mixture. The key function F must be computed by numerical quadrature, together with its derivatives with respect to the individual species mass fractions. An example of computation of these quantities is reported, with reference to conditions in the combustion chamber of the Vulcain engine powering the first stage of the Ariane 5 launcher. Such a computation is demonstrated to be both economic and accurate, thus proving the workability of the proposed approach. Further, an estimate of the variation of the mixture specific heat ratio with temperature is given, in order to underline the importance of the effect under consideration.

Not all developmental assets are related to positive health outcomes in college students

Directory of Open Access Journals (Sweden)

Teoli Daniel A

2011-07-01

Full Text Available Abstract Background The purpose of this investigation was to model the relationships between developmental assets, life satisfaction, and health-related quality of life (HRQOL among a stratified, random sample (n = 765, 56% response rate of college students. Methods Structural equation modeling techniques were employed to test the relationships using Mplus v4.21; Model evaluations were based on 1 theoretical salience, 2 global fit indices (chi-square goodness of fit, comparative fit index: CFI and Tucker-Lewis Index: TLI, 3 microfit indices (parameter estimates, root mean squared error of approximation: RMSEA and residuals and 4 parsimony. Results The model fit the data well: χ2(n = 581, 515 = 1252.23, CFI = .94, TLI = .93 and RMSEA = .05. First, participants who reported increased Family Communication also reported higher levels of life satisfaction. Second, as participants reported having more Non-Parental Role Models, life satisfaction decreased and poor mental HRQOL days increased. Finally increased Future Aspirations was related to increased poor mental HRQOL days. Results were variant across gender. Conclusions Preliminary results suggest not all developmental assets are related to positive health outcomes among college students, particularly mental health outcomes. While the findings for Family Communication were expected, the findings for Non-Parental Role Models suggest interactions with potential role models in college settings may be naturally less supportive. Future Aspirations findings suggest college students may harbor a greater temporal urgency for the rigors of an increasingly competitive work world. In both cases, these assets appear associated with increased poor mental HRQOL days.

Motivating students through positive learning experiences

DEFF Research Database (Denmark)

Lykke, Marianne; Coto Chotto, Mayela; Jantzen, Christian

2015-01-01

Based on the assumption that wellbeing, positive emotions and engagement influence motivation for learning, the aim of this paper is to provide insight into students’ emotional responses to and engagement in different learning designs. By comparing students’ reports on the experiential qualities...... of three different learning designs, their respective influence on students’ motivation for learning is discussed with the purpose of exploring the relationship between positive emotions, engagement and intrinsic motivation for learning. Our study thus aims at evaluating the motivational elements...

Does Copper Metal React with Acetic Acid?

Science.gov (United States)

DeMeo, Stephen

1997-01-01

Describes an activity that promotes analytical thinking and problem solving. Gives students experience with important scientific processes that can be generalized to other new laboratory experiences. Provides students with the opportunity to hypothesize answers, control variables by designing an experiment, and make logical deductions based on…

Cross-reacting antibacterial auto-antibodies are produced within coronary atherosclerotic plaques of acute coronary syndrome patients.

Directory of Open Access Journals (Sweden)

Filippo Canducci

Full Text Available Coronary atherosclerosis, the main condition predisposing to acute myocardial infarction, has an inflammatory component caused by stimuli that are yet unknown. We molecularly investigated the nature of the immune response within human coronary lesion in four coronary plaques obtained by endoluminal atherectomy from four patients. We constructed phage-display libraries containing the IgG1/kappa antibody fragments produced by B-lymphocytes present in each plaque. By immunoaffinity, we selected from these libraries a monoclonal antibody, arbitrarily named Fab7816, able to react both with coronary and carotid atherosclerotic tissue samples. We also demonstrated by confocal microscopy that this monoclonal antibody recognized human transgelin type 1, a cytoskeleton protein involved in atherogenesis, and that it co-localized with fibrocyte-like cells transgelin+, CD68+, CD45+ in human sections of coronary and carotid plaques. In vitro fibrocytes obtained by differentiating CD14+ cells isolated from peripheral blood mononuclear cells also interacted with Fab7816, thus supporting the hypothesis of a specific recognition of fibrocytes into the atherosclerotic lesions. Interestingly, the same antibody, cross-reacted with the outer membrane proteins of Proteus mirabilis and Klebsiella pneumoniae (and possibly with homologous proteins of other enterobacteriaceae present in the microbiota. From all the other three libraries, we were able to clone, by immunoaffinity selection, human monoclonal antibodies cross-reacting with bacterial outer membrane proteins and with transgelin. These findings demonstrated that in human atherosclerotic plaques a local cross-reactive immune response takes place.

Competitor's marketing : How banks acquire and react to knowledge about their competitor's marketing.

OpenAIRE

Puelma, Rodrigo; Persson, Annika

2008-01-01

Abstract   Introduction The way banks compete has changed dramatically during recent years, mostly because of international trends such as advances in information technology, globalisation and deregulations. This has made competition harsher meaning that survival and success requires knowledge about the competitors and understanding about the way they act and react. Within marketing there is a need to identify suitable strategies to acquire knowledge about competitor’s marketing and methods t...

Student-Generated Instructional Videos Facilitate Learning through Positive Emotions

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Pirhonen, Juhani; Rasi, Päivi

2017-01-01

The central focus of this study is a learning method in which university students produce instructional videos about the content matter as part of their learning process, combined with other learning assignments. The rationale for this is to promote a more multimodal pedagogy, and to provide students opportunities for a more learner-centred,…

Structural Modeling on the Relationship between Positive Perception, Deliberative Belief, and Friendship Quality: A Study with Undergraduate Students

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Lin, Chun-Wen

2018-01-01

Some of the key issues in pedagogy are the way of students' peer learning, collaboration, and team work at school. Friendship quality is essential for academic achievement by peer learning and team work. In line with that, the aim of the present study is to examine the associations between variables that are positive perception, deliberative…

High School Student Physics Research Experience Yields Positive Results

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Podolak, K. R.; Walters, M. J.

2016-01-01

All high school students that wish to continue onto college are seeking opportunities to be competitive in the college market. They participate in extra-curricular activities which are seen to foster creativity and the skills necessary to do well in the college environment. In the case of students with an interest in physics, participating in a…

'Reacting to the unknown': experiencing the first birth at home or in hospital in Australia.

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Dahlen, Hannah G; Barclay, Lesley; Homer, Caroline S E

2010-08-01

to explore the experiences of a small group of first-time mothers giving birth at home or in hospital. a grounded theory methodology was used. Data were generated from in-depth interviews with women in their own homes. Sydney, Australia. 19 women were interviewed. Seven women who gave birth for the first time in a public hospital and seven women who gave birth for the first time at home were interviewed, and their experiences were contrasted with two mothers who gave birth for the first time in a birth centre, one mother who gave birth for the first time in a private hospital and two women who had given birth more than once. these women shared common experiences of giving birth as 'novices'. Regardless of birth setting, they were all 'reacting to the unknown'. As they entered labour, the women chose different levels of responsibility for their birth. They also readjusted their expectations when the reality of labour occurred, reacted to the 'force' of labour, and connected or disconnected from the labour and eventually the baby. knowing that first-time mothers, irrespective of birth setting, are essentially 'reacting to the unknown' as they negotiate the experience of birth, could alter the way in which care is provided and increase the sensitivity of midwives to women's needs. Most importantly, midwives need to be aware of the need to help women adjust their expectations during labour and birth. Identifying the 'novice' status of first-time mothers also better explains previous research that reports unrealistic expectations and fear that may be associated with first-time birthing. Crown Copyright 2008. Published by Elsevier Ltd. All rights reserved.

A Parallel Multiblock Structured Grid Method with Automated Interblocked Unstructured Grids for Chemically Reacting Flows

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Spiegel, Seth Christian

An automated method for using unstructured grids to patch non- C0 interfaces between structured blocks has been developed in conjunction with a finite-volume method for solving chemically reacting flows on unstructured grids. Although the standalone unstructured solver, FVFLO-NCSU, is capable of resolving flows for high-speed aeropropulsion devices with complex geometries, unstructured-mesh algorithms are inherently inefficient when compared to their structured counterparts. However, the advantages of structured algorithms in developing a flow solution in a timely manner can be negated by the amount of time required to develop a mesh for complex geometries. The global domain can be split up into numerous smaller blocks during the grid-generation process to alleviate some of the difficulties in creating these complex meshes. An even greater abatement can be found by allowing the nodes on abutting block interfaces to be nonmatching or non-C 0 continuous. One code capable of solving chemically reacting flows on these multiblock grids is VULCAN, which uses a nonconservative approach for patching non-C0 block interfaces. The developed automated unstructured-grid patching algorithm has been installed within VULCAN to provide it the capability of a fully conservative approach for patching non-C0 block interfaces. Additionally, the FVFLO-NCSU solver algorithms have been deeply intertwined with the VULCAN source code to solve chemically reacting flows on these unstructured patches. Finally, the CGNS software library was added to the VULCAN postprocessor so structured and unstructured data can be stored in a single compact file. This final upgrade to VULCAN has been successfully installed and verified using test cases with particular interest towards those involving grids with non- C0 block interfaces.

Teaching Positive Networking for Life-Long Impact

Science.gov (United States)

Addams, Lon; Woodbury, Denise; Addams, Lindsey

2010-01-01

As college communication instructors, we could further assist students by teaching the value of positive networking. This article provides (1) a foundation for positive networking and (2) several successful ways in which students can begin building a strong long-lasting network of professional relationships during the semester…and for their entire…

Are positive emotions just as "positive" across cultures?

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Leu, Janxin; Wang, Jennifer; Koo, Kelly

2011-08-01

Whereas positive emotions and feeling unequivocally good may be at the heart of well-being among Westerners, positive emotions often carry negative associations within many Asian cultures. Based on a review of East-West cultural differences in dialectical emotions, or co-occurring positive and negative feelings, we predicted culture to influence the association between positive emotions and depression, but not the association between negative emotions and depression. As predicted, in a survey of over 600 European-, immigrant Asian-, and Asian American college students, positive emotions were associated with depression symptoms among European Americans and Asian Americans, but not immigrant Asians. Negative emotions were associated with depression symptoms among all three groups. We also found initial evidence that acculturation (i.e., nativity) may influence the role of positive emotions in depression: Asian Americans fell "in between" the two other groups. These findings suggest the importance of studying the role of culture in positive emotions and in positive psychology. The use of interventions based on promoting positive emotions in clinical psychology among Asian clients is briefly discussed. 2011 APA, all rights reserved

Desarrollo de una aplicación móvil mediante React-Native

OpenAIRE

Raja Lentijo, David

2018-01-01

In this document has been developed an application to share food recipes with social format where the users can interact between them. The goal of this applications is to create a global platform when users wants to find something related with cooking, know where have to go and don't have to use a web browser. All has developed with React-Native that allows to develop native applications for Android and IOS platforms, and reduce the processing time respect to hybrid applications. Also, the co...

Experiences matter: Positive emotions facilitate intrinsic motivation

OpenAIRE

Løvoll, Helga Synnevåg; Røysamb, Espen; Vittersø, Joar

2017-01-01

This paper has two major aims. First, to investigate how positive emotions and intrinsic motivation affect each other over time. Second, to test the effect of positive emotions and intrinsic motivation on subsequent educational choices. Through two ordinary study semesters, 64 sport students in Norway reported on their intrinsic motivation for outdoor activities (twice) as well as positive emotions after two three-day outdoor events (four times). Next autumn, students study choice was collect...

The Association between Positive Parenting and Externalizing Behavior1

Science.gov (United States)

Boeldt, Debra L.; Rhee, Soo Hyun; DiLalla, Lisabeth F.; Mullineaux, Paula Y.; Schulz-Heik, R. Jay; Corley, Robin P.; Young, Susan E.; Hewitt, John. K.

2011-01-01

The present study examined the role of positive parenting on externalizing behaviors in a longitudinal, genetically informative sample. It often is assumed that positive parenting prevents behavior problems in children via an environmentally mediated process. Alternatively, the association may be due to either an evocative gene-environment correlation, in which parents react to children’s genetically-influenced behavior in a positive way, or a passive gene-environment correlation, where parents passively transmit a risk environment and the genetic risk factor for the behavioral outcome to their children. The present study estimated the contribution of these processes in the association between positive parenting and children’s externalizing behavior. Positive parenting was assessed via observations at ages 7, 9, 14, 24, and 36 months and externalizing behaviors were assessed through parent report at ages 4, 5, 7, 9, 10, 11, and 12 years. The significant association between positive parenting and externalizing behavior was negative, with children of mothers who showed significantly more positive parenting during toddlerhood having lower levels of externalizing behavior in childhood; however, there was not adequate power to distinguish whether this covariation was due to genetic, shared environmental, or nonshared environmental influences. PMID:22577341

Combined LAURA-UPS solution procedure for chemically-reacting flows. M.S. Thesis

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Wood, William A.

1994-01-01

A new procedure seeks to combine the thin-layer Navier-Stokes solver LAURA with the parabolized Navier-Stokes solver UPS for the aerothermodynamic solution of chemically-reacting air flowfields. The interface protocol is presented and the method is applied to two slender, blunted shapes. Both axisymmetric and three dimensional solutions are included with surface pressure and heat transfer comparisons between the present method and previously published results. The case of Mach 25 flow over an axisymmetric six degree sphere-cone with a noncatalytic wall is considered to 100 nose radii. A stability bound on the marching step size was observed with this case and is attributed to chemistry effects resulting from the noncatalytic wall boundary condition. A second case with Mach 28 flow over a sphere-cone-cylinder-flare configuration is computed at both two and five degree angles of attack with a fully-catalytic wall. Surface pressures are seen to be within five percent with the present method compared to the baseline LAURA solution and heat transfers are within 10 percent. The effect of grid resolution is investigated and the nonequilibrium results are compared with a perfect gas solution, showing that while the surface pressure is relatively unchanged by the inclusion of reacting chemistry the nonequilibrium heating is 25 percent higher. The procedure demonstrates significant, order of magnitude reductions in solution time and required memory for the three dimensional case over an all thin-layer Navier-Stokes solution.

Frequent fliers, school phobias, and the sick student: school health personnel's perceptions of students who refuse school.

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Torrens Armstrong, Anna M; McCormack Brown, Kelli R; Brindley, Roger; Coreil, Jeannine; McDermott, Robert J

2011-09-01

This study explored school personnel's perceptions of school refusal, as it has been described as a "common educational and public health problem" that is less tolerated due to increasing awareness of the potential socioeconomic consequences of this phenomenon. In-depth interviews were conducted with school personnel at the middle school (N = 42), high school (N = 40), and district levels (N = 10). The findings focus on emergent themes from interviews with school health personnel (N = 12), particularly those themes related to their perceptions of and role in working with school-refusing students. Personnel, especially school health services staff, constructed a typification of the school-refusing student as "the sick student," which conceptualized student refusal due to reasons related to illness. Personnel further delineated sick students by whether they considered the illness legitimate. School health personnel referenced the infamous "frequent fliers" and "school phobics" within this categorization of students. Overarching dynamics of this typification included parental control, parental awareness, student locus of control, blame, and victim status. These typifications influenced how personnel reacted to students they encountered, particularly in deciding which students need "help" versus "discipline," thus presenting implications for students and screening of students. Overall, findings suggest school health personnel play a pivotal role in screening students who are refusing school as well as keeping students in school, underscoring policy that supports an increased presence of school health personnel. Recommendations for school health, prevention, and early intervention include the development of screening protocols and staff training. © 2011, American School Health Association.

Turbulent diffusion of chemically reacting flows: Theory and numerical simulations.

Science.gov (United States)

Elperin, T; Kleeorin, N; Liberman, M; Lipatnikov, A N; Rogachevskii, I; Yu, R

2017-11-01

The theory of turbulent diffusion of chemically reacting gaseous admixtures developed previously [T. Elperin et al., Phys. Rev. E 90, 053001 (2014)PLEEE81539-375510.1103/PhysRevE.90.053001] is generalized for large yet finite Reynolds numbers and the dependence of turbulent diffusion coefficient on two parameters, the Reynolds number and Damköhler number (which characterizes a ratio of turbulent and reaction time scales), is obtained. Three-dimensional direct numerical simulations (DNSs) of a finite-thickness reaction wave for the first-order chemical reactions propagating in forced, homogeneous, isotropic, and incompressible turbulence are performed to validate the theoretically predicted effect of chemical reactions on turbulent diffusion. It is shown that the obtained DNS results are in good agreement with the developed theory.

Therapeutic preparations of IVIg contain naturally occurring anti-HLA-E antibodies that react with HLA-Ia (HLA-A/-B/-Cw) alleles.

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Ravindranath, Mepur H; Terasaki, Paul I; Pham, Tho; Jucaud, Vadim; Kawakita, Satoru

2013-03-14

The US Food and Drug Administration approved intravenous immunoglobulin (IVIg), extracted from the plasma of thousands of blood donors, for removing HLA antibodies (Abs) in highly sensitized patients awaiting organ transplants. Since the blood of healthy individuals has HLA Abs, we tested different IVIg preparations for reactivity to HLA single antigen Luminex beads. All preparations showed high levels of HLA-Ia and -Ib reactivity. Since normal nonalloimmunized males have natural antibodies to the heavy chains (HCs) of HLA antigens, the preparations were then tested against iBeads coated only with intact HLA antigens. All IVIg preparations varied in level of antibody reactivity to intact HLA antigens. We raised monoclonal Abs against HLA-E that mimicked IVIg's HLA-Ia and HLA-Ib reactivity but reacted only to HLA-I HCs. Inhibition experiments with synthetic peptides showed that HLA-E shares epitopes with HLA-Ia alleles. Importantly, depleting anti-HLA-E Abs from IVIg totally eliminated the HLA-Ia reactivity of IVIg. Since anti-HLA-E mAbs react with HLA-Ia, they might be useful in suppressing HLA antibody production, similar to the way anti-RhD Abs suppress production. At the same time, anti-HLA-E mAb, which reacts only to HLA-I HCs, is unlikely to produce transfusion-related acute lung injury, in contrast to antibodies reacting to intact-HLA.

Lean premixed reacting flows with swirl and wall-separation zones in a contracting chamber

Science.gov (United States)

Zhang, Yuxin; Rusak, Zvi; Wang, Shixiao

2017-11-01

Low Mach number lean premixed reacting swirling flows with wall-separation zones in a contracting circular finite-length open chamber are studied. Assuming a complete reaction with high activation energy and chemical equilibrium behind the reaction zone, a nonlinear partial differential equation is derived for the solution of the flow stream function behind the reaction zone in terms of the inlet total enthalpy for a reacting flow, specific entropy and the circulation functions. Bifurcation diagrams of steady flows are described as the inlet swirl level is increased at fixed chamber contraction and reaction heat release. The approach is applied to an inlet solid-body rotation flow with constant profiles of the axial velocity, temperature and mixture reactant mass fraction. The computed results provide predictions of the critical inlet swirl levels for the first appearance of wall-separation states and for the size of the separation zone as a function of the inlet swirl ratio, Mach number, chamber contraction and heat release of the reaction. The methodology developed in this paper provides a theoretical feasibility for the development of the technology of swirl-assisted combustion where the reaction zone is supported and stabilized by a wall-separation zone.

Improved sleep patterns positively affect learning outcome among Danish nursing students

DEFF Research Database (Denmark)

Sølling, Ina Koldkjær; Carøe, Per

physiology is taught at the nursing education programme; this does not mean that nursing students develop good sleep habits. Methods: To support learning an innovative method was chosen where nursing students were motivated to develop good sleep habits through peer learning. Nursing students were taught...... in groups by other students, so-called sleep ambassadors. On the basis of a training programme they developed a creative concept with exercises, tests (memory and power of concentration) and social activities in connection with theoretical teaching in the subject of sleep. This concept was followed......-up by social media activities motivated the nursing students to change their sleep habits. Results: This project has been completed by one of two classes of first semester students at the nursing education programme at UCN. This class demonstrated better examination results and a lower drop-oup rate compared...

Approximate solution to the Kolmogorov equation for a fission chain-reacting system

International Nuclear Information System (INIS)

Ruby, L.; McSwine, T.L.

1986-01-01

An approximate solution has been obtained for the Kolmogorov equation describing a fission chain-reacting system. The method considers the population of neutrons, delayed-neutron precursors, and detector counts. The effect of the detector is separated from the statistics of the chain reaction by a weak coupling assumption that predicts that the detector responds to the average rather than to the instantaneous neutron population. An approximate solution to the remaining equation, involving the populations of neutrons and precursors, predicts a negative-binomial behaviour for the neutron probability distribution

Extension of a semi-implicit shock-capturing algorithm for 3-D fully coupled, chemically reacting flows in generalized coordinates

International Nuclear Information System (INIS)

Shinn, J.L.; Yee, H.C.; Uenishi, K.; NASA, Ames Research Center, Moffett Field, CA; Vigyan Research Associates, Inc., Hampton, VA)

1987-01-01

A semiimplicit high-resolution shock-capturing method for multidimensional systems of hyperbolic conservation laws with stiff source terms has been developed by Yee and Shinn (1987). The goal of this work is to extend this method to solve the three-dimensional fully coupled Navier-Stokes equations for a hypersonic chemically reacting flow in generalized coordinates. In this formulation, the global continuity equation was replaced by all the species continuity equations. The shock-capturing technique is a second-order-accurate, symmetric total-variation-diminishing method which accounts fully and directly for the coupling among the fluid and all the species. To verify the current approach, it was implemented into an existing computer code which contained the MacCormack method. Test results for a five-species reacting flow are shown to be oscillation-free around the shock, and the time spent per iteration only doubles when compared to the result using classical way of supplying numerical dissipation. The extra computation is more than justified by the elimination of spurious oscillation and nonlinear instability associated with the classical shock-capturing schemes in computing hypersonic reacting flows. 27 references

Reaction Ensemble Molecular Dynamics: Direct Simulation of the Dynamic Equilibrium Properties of Chemically Reacting Mixtures

Czech Academy of Sciences Publication Activity Database

Brennan, J.K.; Lísal, Martin; Gubbins, K.E.; Rice, B.M.

2004-01-01

Roč. 70, č. 6 (2004), 0611031-0611034 ISSN 1063-651X R&D Projects: GA ČR GA203/03/1588 Grant - others:NSF(US) CTS-0211792 Institutional research plan: CEZ:AV0Z4072921 Keywords : reacting systems * simulation * molecular dynamics Subject RIV: CF - Physical ; Theoretical Chemistry Impact factor: 2.352, year: 2004

A New Dyslexia Reading Method and Visual Correction Position Method.

Science.gov (United States)

Manilla, George T; de Braga, Joe

2017-01-01

Pediatricians and educators may interact daily with several dyslexic patients or students. One dyslexic author accidently developed a personal, effective, corrective reading method. Its effectiveness was evaluated in 3 schools. One school utilized 8 demonstration special education students. Over 3 months, one student grew one third year, 3 grew 1 year, and 4 grew 2 years. In another school, 6 sixth-, seventh-, and eighth-grade classroom teachers followed 45 treated dyslexic students. They all excelled and progressed beyond their classroom peers in 4 months. Using cyclovergence upper gaze, dyslexic reading problems disappeared at one of the Positional Reading Arc positions of 30°, 60°, 90°, 120°, or 150° for 10 dyslexics. Positional Reading Arc on 112 students of the second through eighth grades showed words read per minute, reading errors, and comprehension improved. Dyslexia was visually corrected by use of a new reading method and Positional Reading Arc positions.

PERSPECTIVES ON GROUP WORK IN DISTANCE LEARNING

Directory of Open Access Journals (Sweden)

Rune Sarromaa HAUSSTÄTTER

2007-01-01

Full Text Available Current distance education benefits greatly from educational software that makes group work possible for students who are separated in time and space. However, some students prefer distance education because they can work on their own. This paper explores how students react to expectations on behalf of the course provider to do their assignments in collaborative groups. They are seemingly both positively surprised by the challenges that group work offer, and they are less positive to the downsides of group work. The paper discusses both sides of the experiences and suggests why this might be a paradox to live with.

The Role of Positive Psychological Capital and the Family Function in Prediction of Happiness in high school students

Directory of Open Access Journals (Sweden)

F rashidi kochi

2016-11-01

Full Text Available The aim of this study was to determine the role of positive psychological capital and family functioning in predicting happiness among adolescence. Correlational research method was recruited to analyze the data. The sample comprised of 290 high Scholl students that selected by the convenience sampling method. In this research Snyder’s hope, Nezami and Colleagues self-efficacy, Scheier and Carver's optimism, McMaster's family functioning and Connor and Davidson's Resiliency and Oxford happiness questionnaire used to collect data. Pearson correlation and stepwise regression were used to analyze data. The finding showed that there was a significant positive relationship between family function components and positive psychological capital with happiness. The results of stepwise regression showed that roles, Resiliency, self-efficacy, optimism and emotion expression had significant and important role in predicting happiness. Totally, explained 35% of the variance happiness. In conclusion, these findings indicate the importance roles of family and positive psychological capital in adolescence's happiness.

Computer program to solve two-dimensional shock-wave interference problems with an equilibrium chemically reacting air model

Science.gov (United States)

Glass, Christopher E.

1990-08-01

The computer program EASI, an acronym for Equilibrium Air Shock Interference, was developed to calculate the inviscid flowfield, the maximum surface pressure, and the maximum heat flux produced by six shock wave interference patterns on a 2-D, cylindrical configuration. Thermodynamic properties of the inviscid flowfield are determined using either an 11-specie, 7-reaction equilibrium chemically reacting air model or a calorically perfect air model. The inviscid flowfield is solved using the integral form of the conservation equations. Surface heating calculations at the impingement point for the equilibrium chemically reacting air model use variable transport properties and specific heat. However, for the calorically perfect air model, heating rate calculations use a constant Prandtl number. Sample calculations of the six shock wave interference patterns, a listing of the computer program, and flowcharts of the programming logic are included.

Development and testing of bumper limiter of aluminum alloy vacuum vessel for reacting plasma experiment

International Nuclear Information System (INIS)

Uchikawa, T.; Fujiwara, M.; Ioki, K.; Irie, T.; Nayama, R.; Nishikawa, M.; Onozuka, M.; Tomita, M.

1985-01-01

Two types of graphite bumper limiters were designed and trially fabricated for a reacting plasma device, R-tokamak. High heat load tests were conducted to examine thermal behavior and thermal shock resistance of the limiters by using a 100kW electron beam facility. The experimental data were compared with the results of 3-D thermal analysis

Development and testing of bumper limiter of aluminum alloy vacuum vessel for reacting plasma experiment

Energy Technology Data Exchange (ETDEWEB)

Uchikawa, T.; Fujiwara, M.; Ioki, K.; Irie, T.; Nayama, R.; Nishikawa, M.; Onozuka, M.; Tomita, M.

1985-07-01

Two types of graphite bumper limiters were designed and trially fabricated for a reacting plasma device, R-tokamak. High heat load tests were conducted to examine thermal behavior and thermal shock resistance of the limiters by using a 100kW electron beam facility. The experimental data were compared with the results of 3-D thermal analysis.

Statistical analysis of the velocity and scalar fields in reacting turbulent wall-jets

Science.gov (United States)

Pouransari, Z.; Biferale, L.; Johansson, A. V.

2015-02-01

The concept of local isotropy in a chemically reacting turbulent wall-jet flow is addressed using direct numerical simulation (DNS) data. Different DNS databases with isothermal and exothermic reactions are examined. The chemical reaction and heat release effects on the turbulent velocity, passive scalar, and reactive species fields are studied using their probability density functions (PDFs) and higher order moments for velocities and scalar fields, as well as their gradients. With the aid of the anisotropy invariant maps for the Reynolds stress tensor, the heat release effects on the anisotropy level at different wall-normal locations are evaluated and found to be most accentuated in the near-wall region. It is observed that the small-scale anisotropies are persistent both in the near-wall region and inside the jet flame. Two exothermic cases with different Damköhler numbers are examined and the comparison revealed that the Damköhler number effects are most dominant in the near-wall region, where the wall cooling effects are influential. In addition, with the aid of PDFs conditioned on the mixture fraction, the significance of the reactive scalar characteristics in the reaction zone is illustrated. We argue that the combined effects of strong intermittency and strong persistency of anisotropy at the small scales in the entire domain can affect mixing and ultimately the combustion characteristics of the reacting flow.

Head position and spinal position as determinants of perceived emotional state.

Science.gov (United States)

Schouwstra, S J; Hoogstraten, J

1995-10-01

A sample of 60 first-year psychology students judged the emotional state of 21 drawn figures and completed the Adjective Checklist and a mood questionnaire. The judgments were affected by the interaction between head position and spinal position of the figure. Each figure was associated with a unique pattern of emotions, and the judgments given were not influenced by the subjects' own emotional state.

THE INFLUENCE OF CORPORATE IMAGE, SERVICE QUALITY, PERCEIVED VALUE TOWARD STUDENT SATISFACTION AND STUDENT LOYALTY

Directory of Open Access Journals (Sweden)

Gatri Lunarindiah

2018-01-01

Full Text Available Student satisfaction and student loyalty are important factors in business education. This research was conducted with the goal to test and analyze the influence of corporate image, service quality and perceived value on student satisfaction and student loyalty. The object of the sample is students of the Economics and Business Faculty of Trisakti University as many as 150 respondents and the analysis was done by using the method of Structural Equaton Model (SEM producing conclusion that the corporate image, service quality and perceived value proved to be positive and significantly influential upon student satisfaction and service quality also proved to have a positively significant effect on student loyalty. There is a hypothesis that student satisfaction is not proven positively influencial upon student loyalty.

Positive mood broadens visual attention to positive stimuli.

Science.gov (United States)

Wadlinger, Heather A; Isaacowitz, Derek M

2006-03-01

In an attempt to investigate the impact of positive emotions on visual attention within the context of Fredrickson's (1998) broaden-and-build model, eye tracking was used in two studies to measure visual attentional preferences of college students (n=58, n=26) to emotional pictures. Half of each sample experienced induced positive mood immediately before viewing slides of three similarly-valenced images, in varying central-peripheral arrays. Attentional breadth was determined by measuring the percentage viewing time to peripheral images as well as by the number of visual saccades participants made per slide. Consistent with Fredrickson's theory, the first study showed that individuals induced into positive mood fixated more on peripheral stimuli than did control participants; however, this only held true for highly-valenced positive stimuli. Participants under induced positive mood also made more frequent saccades for slides of neutral and positive valence. A second study showed that these effects were not simply due to differences in emotional arousal between stimuli. Selective attentional broadening to positive stimuli may act both to facilitate later building of resources as well as to maintain current positive affective states.

THE LINK BETWEEN STUDENTS' SATISFACTION WITH FACULTY, OVERALL STUDENTS' SATISFACTION WITH STUDENT LIFE AND STUDENT PERFORMANCES

Directory of Open Access Journals (Sweden)

Zoran Mihanović

2016-03-01

Full Text Available Customer satisfaction has long been recognized as a central concept of all business activities. Satisfaction can serve as an indicator of success of the company, both in the past and present, as well as an indicator of future performance. High quality service to students is a prerequisite of maintaining competitiveness in the market of higher education. A relationship that is created between the expectations of students and their satisfaction with the quality of service that provides educational institution plays an important role in shaping the reputation of academic institutions. Academic institutions are becoming aware of the importance of student satisfaction, because satisfaction positively influences their decision to continue their education at this institution, and the positive word of mouth that will attract prospective students. Satisfaction will affect student motivation, and therefore their performance. This paper provides insight into the marketing aspects of customer satisfaction, primarily insight into the satisfaction of students in the educational sector. The aim is to establish the influence of satisfaction various factors related to the university and higher education to the satisfaction of student life, and does student life satisfaction affect the overall happiness and student performance. The research was conducted on the student population of the University of Split, on a sample of 191 respondents. The research was conducted with the help of online survey questionnaire. The claim that student’s satisfactions with housing affect the satisfaction with the quality of student life is rejected. The results confirmed that the student’s satisfaction with university contents, university bodies and services, teaching, teaching methods and academic reputation affects the satisfaction of student life and student life satisfaction affect the student performance.

Doppler-shifted fluorescence imaging of velocity fields in supersonic reacting flows

Science.gov (United States)

Allen, M. G.; Davis, S. J.; Kessler, W. J.; Sonnenfroh, D. M.

1992-01-01

The application of Doppler-shifted fluorescence imaging of velocity fields in supersonic reacting flows is analyzed. Focussing on fluorescence of the OH molecule in typical H2-air Scramjet flows, the effects of uncharacterized variations in temperature, pressure, and collisional partner composition across the measurement plane are examined. Detailed measurements of the (1,0) band OH lineshape variations in H2-air combustions are used, along with single-pulse and time-averaged measurements of an excimer-pumped dye laser, to predict the performance of a model velocimeter with typical Scramjet flow properties. The analysis demonstrates the need for modification and control of the laser bandshape in order to permit accurate velocity measurements in the presence of multivariant flow properties.

Approximate method of calculation of non-equilibrium flow parameters of chemically reacting nitrogen tetroxide in the variable cross-section channels with energy exchange

International Nuclear Information System (INIS)

Bazhin, M.A.; Fedosenko, G.Eh.; Shiryaeva, N.M.; Mal'ko, M.V.

1986-01-01

It is shown that adiabatic non-equilibrium chemically reacting gas flow with energy exchange in a variable cross-section channel may be subdivided into five possible types: 1) quasi-equilibrium flow; 2) flow in the linear region of deviation from equilibrium state; 3) quasi-frozen flow; 4) flow in the linear region of deviation from frozen state; 5) non-equilibrium flow. Criteria of quasi-equilibrium and quazi-frozen flows, including factors of external action of chemically reacting gas on flow, allow to obtain simple but sufficiently reliable approximate method of calculation of flow parameters. The considered method for solving the problem of chemically reacting nitrogen tetroxide in the variable cross-section channel with energy exchange can be used for evaluation of chemical reaction kinetics on the flow parameter in the stages of axial-flow and radial-flow turbines and in another practical problems

Outcomes in Patients With Metastatic Renal Cell Carcinoma Who Develop Everolimus-Related Hyperglycemia and Hypercholesterolemia: Combined Subgroup Analyses of the RECORD-1 and REACT Trials.

Science.gov (United States)

Bono, Petri; Oudard, Stephane; Bodrogi, Istvan; Hutson, Thomas E; Escudier, Bernard; Machiels, Jean-Pascal; Thompson, John A; Figlin, Robert A; Ravaud, Alain; Basaran, Mert; Porta, Camillo; Bracarda, Sergio; Brechenmacher, Thomas; Lin, Chinjune; Voi, Maurizio; Grunwald, Viktor; Motzer, Robert J

2016-10-01

Hyperglycemia and hypercholesterolemia are class effects of mammalian target of rapamycin inhibitors. The purpose of this study was to characterize safety and efficacy of patients with metastatic renal cell carcinoma (mRCC) treated with everolimus in RECORD-1 (REnal Cell cancer treatment with Oral RAD001 given Daily) and REACT (RAD001 Expanded Access Clinical Trial in RCC) who developed these events. Adults with vascular endothelial growth factor-refractory mRCC received everolimus 10 mg/d in the randomized RECORD-1 (n = 277) and open-label REACT (n = 1367) studies. Outcomes included safety, treatment duration, overall response, and progression-free survival for patients who developed hypercholesterolemia or hyperglycemia. In RECORD-1, 12% (33 of 277) and 20% (55 of 277) of patients developed any grade hyperglycemia or hypercholesterolemia, respectively, with only 6% (78 of 1367) and 1% (14 of 1367) of the same events, respectively, in REACT. Median everolimus treatment duration was similar for patients with hyperglycemia or hypercholesterolemia (RECORD-1, 6.2 and 6.2 months, respectively; REACT, 4.4 and 4.5 months, respectively), but longer than the overall populations (RECORD-1, 4.6 months; REACT, 3.2 months). In RECORD-1/REACT, 82%/68% of patients with hyperglycemia and 75%/71% of patients with hypercholesterolemia achieved partial response or stable disease. The incidence of clinically notable Grade 3 or 4 adverse events, other than anemia and lymphopenia, appeared to be similar across trials and subgroups. Although there was a trend for improved progression-free survival with development of hyperglycemia or hypercholesterolemia, the association was not statistically significant. Hyperglycemia and hypercholesterolemia were observed in low numbers of patients, and although these events might be associated with improved response to everolimus, the differences were not significant. These findings should be validated with prospective biomarker studies. Copyright

Motivational Techniques: Positively Impacting Students from Middle School through College

Science.gov (United States)

Walter, Joseph E.

2014-01-01

In the United States, our children face a number of factors that influence their behavior. Children's peers, parents and even the media, especially television, heavily influence students. Because of these influences, it can be difficult to motivate students in the classroom to strive for and achieve success. The purpose of this article is to…

Simulations of Spray Reacting Flows in a Single Element LDI Injector With and Without Invoking an Eulerian Scalar PDF Method

Science.gov (United States)

Shih, Tsan-Hsing; Liu, Nan-Suey

2012-01-01

This paper presents the numerical simulations of the Jet-A spray reacting flow in a single element lean direct injection (LDI) injector by using the National Combustion Code (NCC) with and without invoking the Eulerian scalar probability density function (PDF) method. The flow field is calculated by using the Reynolds averaged Navier-Stokes equations (RANS and URANS) with nonlinear turbulence models, and when the scalar PDF method is invoked, the energy and compositions or species mass fractions are calculated by solving the equation of an ensemble averaged density-weighted fine-grained probability density function that is referred to here as the averaged probability density function (APDF). A nonlinear model for closing the convection term of the scalar APDF equation is used in the presented simulations and will be briefly described. Detailed comparisons between the results and available experimental data are carried out. Some positive findings of invoking the Eulerian scalar PDF method in both improving the simulation quality and reducing the computing cost are observed.

Positive Classroom Management. A Step-by-Step Guide to Successfully Running the Show Without Destroying Student Dignity. 2nd Edition.

Science.gov (United States)

DiGiulio, Robert

This book provides K-12 teachers with concrete, step-by-step guidance on how to improve student behavior through positive classroom management. It explains how to take control of the classroom, offering an alternative to threats, rewards, and punishments. The book is divided into an introduction and three sections with seven chapters. The…

The Impact of Positive and Negative Ecstasy-Related Information on Ecstasy Use among College Students: Results of a Longitudinal Study

Science.gov (United States)

Vincent, Kathryn B.; Caldeira, Kimberly M.; O'Grady, Kevin E.; Wish, Eric D.; Arria, Amelia M.

2010-01-01

Aims: To: (1) estimate the proportion of students exposed to specific types of information regarding the positive and negative effects of ecstasy, (2) test models that quantified the relationship between exposure to these messages and subsequent ecstasy use, controlling for peer drug use and sensation-seeking. Methods: As part of the College Life…

How preschoolers react to norm violations is associated with culture.

Science.gov (United States)

Gampe, Anja; Daum, Moritz M

2018-01-01

Children from the age of 3years understand social norms as such and enforce these norms in interactions with others. Differences in parental and institutional education across cultures make it likely that children receive divergent information about how to act in cases of norm violations. In the current study, we investigated whether cultural values are associated with the ways in which children react to norm violations. We tested 80 bicultural 3-year-olds with a norm enforcement paradigm and analyzed their reactions to norm violations. The reactions were correlated to the children's parental cultural values using the Global Leadership and Organizational Behavior Effectiveness (GLOBE) scales, and these results show that parental culture was associated with children's reactions to norm violations. The three strongest correlations were found for institutional collectivism, performance orientation, and assertiveness. Copyright © 2017 Elsevier Inc. All rights reserved.

The Effect of Gender on Stress Factors: An Exploratory Study among University Students

Directory of Open Access Journals (Sweden)

Michelle Calvarese

2015-11-01

Full Text Available This study examined the relationship between gender and reactions to stress among university students. University students were surveyed on how they typically responded when under perceived stress. There were significant differences between males and females concerning their reactions to stress. Overall, more females experienced higher levels of depression, frustration, and anxiety than their male counterparts when reacting to stress. Males also tended to have other psychological reactions different from those listed on the survey. In addition, while the stress reaction of anger was barely statistically insignificant, more females expressed anger than males as a reaction to stress.

Calcination of calcium acetate and calcium magnesium acetate: effect of the reacting atmosphere

Energy Technology Data Exchange (ETDEWEB)

Adanez, J.; Diego, L.F. de; Garcia-Labiano, F. [Instituto de Carboquimica, Zaragoza (Spain). Dept. of Energy and Environment

1999-04-01

The calcination process of the calcium acetate (CA) and calcium magnesium acetate (CMA) was investigated as a previous step for coal gas desulfurisation during sorbent injection at high temperatures because the excellent results demonstrated by these sorbents as sulfur removal agents both in combustion and gasification processes. As pore structure developed during calcination is one of the most important characteristics of the sorbent related with the later reaction with the gaseous pollutants, several calcination tests were conducted in a drop tube reactor at temperatures from 700{degree}C to 1100{degree}C, and residence times from 0.8 to 2.4 s. Four different gas atmospheres were used for comparative purposes: inert, oxidising, reducing, and non-calcining (pure CO{sub 2}). Despite the advantage of the high porous cenospheric structure developed by these sorbents during their injection at high temperature, calcination of the CaCO{sub 3} was not complete even at the longest residence time, 2.4 s, and the highest temperature, 1100{degree}C, tested. An important effect of the reacting atmosphere on the calcination conversion and on the sorbent pore structure was detected. The CO{sub 2} concentration around the particle, both that fed in the reacting gases or that generated by organic material combustion, seems to be responsible for the final calcination conversions obtained in each case, also affecting the sintering suffered by the sorbents. 19 refs., 10 figs.

The Conflict Resolution Connection: Increasing School Attachment in Cooperative Classroom Communities

Science.gov (United States)

Heydenberk, Roberta Anna; Heydenberk, Warren R.

2007-01-01

Although conflict resolution education programs are usually designed to help resolve crises and reduce school disruption, the power of these programs extends far beyond the original purpose of reacting to violence. This article highlights the positive impact of conflict resolution on student relationships and school climates.

Leptospira spp. vaccinal antibodies do not react with Borrelia burgdorferi peptides used in the AccuPlex 4.

Science.gov (United States)

Caress, Amber L; Moroff, Scott; Lappin, Michael R

2017-11-01

We attempted to determine if Leptospira spp. antibodies induced by vaccination would cross-react with Borrelia burgdorferi antigens used in a commercial automated immunofluorescent assay (AccuPlex 4 BioCD; Antech). Staff- and student-owned dogs ( n = 31) were recruited at a veterinary teaching hospital in a B. burgdorferi nonendemic area. The dogs were randomized and administered 1 of 4 commercial Leptospira spp. vaccines that contained serovars Canicola, Grippotyphosa, Icterohaemorrhagiae, and Pomona, then booster vaccinated 3 wk later. Blood was collected on weeks 0, 3, 4, 8, and 12. After confirming that maximal Leptospira spp. titers occurred on week 4, aliquots of sera from week 4 were shipped frozen for analysis of B. burgdorferi antibodies against OspA, OspC, OspF, P39, and SLP with the AccuPlex system. Week 4 sera from all 31 dogs had a titer of 1:100 for at least 1 Leptospira spp. serovar. Titers of 1:800 or greater were detected against multiple serovars in 27 dogs. None of the samples contained antibodies against the B. burgdorferi OspA, OspC, OspF, P39, and SLP peptides used in the commercial assay. The B. burgdorferi peptides used in the AccuPlex system do not recognize naturally occurring Leptospira spp. antibodies or those induced by the commercial Leptospira spp. vaccines administered in our study.

Social support, acculturation, and optimism: understanding positive health practices in Asian American college students.

Science.gov (United States)

Ayres, Cynthia G; Mahat, Ganga

2012-07-01

This study developed and tested a theory to better understand positive health practices (PHP) among Asian Americans aged 18 to 21 years. It tested theoretical relationships postulated between PHP and (a) social support (SS), (b) optimism, and (c) acculturation, and between SS and optimism and acculturation. Optimism and acculturation were also tested as possible mediators in the relationship between SS and PHP. A correlational study design was used. A convenience sample of 163 Asian college students in an urban setting completed four questionnaires assessing SS, PHP, optimism, and acculturation and one demographic questionnaire. There were statistically significant positive relationships between SS and optimism with PHP, between acculturation and PHP, and between optimism and SS. Optimism mediated the relationship between SS and PHP, whereas acculturation did not. Findings extend knowledge regarding these relationships to a defined population of Asian Americans aged 18 to 21 years. Findings contribute to a more comprehensive knowledge base regarding health practices among Asian Americans. The theoretical and empirical findings of this study provide the direction for future research as well. Further studies need to be conducted to identify and test other mediators in order to better understand the relationship between these two variables.

Positioning health professional identity

DEFF Research Database (Denmark)

Lund, Ole; Krogh Christensen, Mette; Mørcke, Anne Mette

2017-01-01

Drawing on positioning theory, the purpose of this paper is to characterize the activities and positions of students and supervisors at workplaces and on-campus skills training sites across the higher health professional educations of medicine, sports science, and nursing. Furthermore, the study ...... explored the impact of work-based learning (WBL) and skills training on students’ personal professional identity development....

Eco-friendly synthesis for MCM-41 nanoporous materials using the non-reacted reagents in mother liquor.

Science.gov (United States)

Ng, Eng-Poh; Goh, Jia-Yi; Ling, Tau Chuan; Mukti, Rino R

2013-03-04

Nanoporous materials such as Mobil composite material number 41 (MCM-41) are attractive for applications such as catalysis, adsorption, supports, and carriers. Green synthesis of MCM-41 is particularly appealing because the chemical reagents are useful and valuable. We report on the eco-friendly synthesis of MCM-41 nanoporous materials via multi-cycle approach by re-using the non-reacted reagents in supernatant as mother liquor after separating the solid product. This approach was achieved via minimal requirement of chemical compensation where additional fresh reactants were added into the mother liquor followed by pH adjustment after each cycle of synthesis. The solid product of each successive batch was collected and characterized while the non-reacted reagents in supernatant can be recovered and re-used to produce subsequent cycle of MCM-41. The multi-cycle synthesis is demonstrated up to three times in this research. This approach suggests a low cost and eco-friendly synthesis of nanoporous material since less waste is discarded after the product has been collected, and in addition, product yield can be maintained at the high level.

Position Paper. Safety for K-12 students: United States policy concerning LGBT student safety must provide inclusion

Directory of Open Access Journals (Sweden)

April Sanders

2013-07-01

Full Text Available Students who identify as lesbian, gay, bisexual, or transgender (LGBT are at risk for harassment due to their sexual orientation or gender identification with over 85% of LGBT students in the United States (US reporting such harassment. These statistics demonstrate one aspect of the significance of this issue, but the cost of human life in some instances has revealed another layer of importance related to a need for safety policies for LGBT students. Even though a need exists for such policies, the practice of heteronormativity found in US policymaking regarding bullying does not protect victims or curb the violence. This essay highlights several recent developments in anti-bullying policy in US schools that shows the existence of heteronormativity, which is not helping to pro-tect LGBT students. By understanding the discrimination encouraged by current policy, future policy can be better shaped to protect LGBT students.

Students as subjects in food advertising studies. An appraisal of appropriateness.

Science.gov (United States)

Choi, Hojoon; Reid, Leonard N

2014-10-01

Considerable knowledge on food advertising has been generated by research on consumers' psychological reactions to food advertising messaging using either students or nonstudents as subjects. Building on past research, this article investigates the methodological question of whether students are appropriate surrogates for nonstudents in food advertising studies. Following exposure to print advertisements featuring healthy and unhealthy foods with two different nutrient attribute-based message appeals, student and nonstudent subjects were asked to complete five standard evaluative response measures to the food ads: claim believability, attitude-toward-the ad, attitude-toward-the-product, attitude-toward-the-brand, and purchase intention. Among the findings, students were found to react differently and more negatively to identical food advertisements than nonstudents. Overall, the message sent to health communication researchers, policy officials, and practicing professionals is - unless certain criteria are satisfied - students should be considered inadequate subjects to represent all age groups of the general population in food advertising research. Thus, conclusions drawn from student-based research about advertising processing and effects should be questioned and broad generalizations avoided. Copyright © 2014 Elsevier Ltd. All rights reserved.

Realistic Creativity Training for Innovation Practitioners: The Know-Recognize-React Model

DEFF Research Database (Denmark)

Valgeirsdóttir, Dagný; Onarheim, Balder

2017-01-01

As creativity becomes increasingly recognized as important raw material for innovation, the importance of identifying ways to increase practitioners’ creativity through rigorously designed creativity training programs is highlighted. Therefore we sat out to design a creativity training program sp...... the transdisciplinary study described in this paper. Co-creation was employed as a method to ensure the three layers of focus would be taken into consideration. The result is a program called Creative Awareness Training which is based on the new Know-Recognize-React model.......As creativity becomes increasingly recognized as important raw material for innovation, the importance of identifying ways to increase practitioners’ creativity through rigorously designed creativity training programs is highlighted. Therefore we sat out to design a creativity training program...

PERBEDAAN KEMAMPUAN KONEKSI MATEMATIS MELALUI MODEL PEMBELAJARAN REACT DENGAN MODEL PEMBELAJARAN LEARNING CYCLE 5E SISWA SMKN 39 JAKARTA

Directory of Open Access Journals (Sweden)

Aditya Prihandhika

2017-03-01

Full Text Available Hasil analisa TIMSS Tahun 2013 menempatkan Indonesia sebagai salah satu negara dengan peringkat terendah dalam perolehan nilai matematika. Model pembelajaran yang dapat digunakan untuk meningkatkan kemampuan koneksi matematis diantaranya adalah model pembelajaran REACT dan Learning Cycle 5E. Penelitian ini bertujuan untuk mengetahui terdapat atau tidaknya perbedaan kemampuan koneksi matematis peserta didik yang diajarkan dengan kedua model tersebut. Penelitian dilaksanakan di SMKN 39 Jakarta dengan populasi kelas X semester ganjil tahun pelajaran 2015-2016. Sampel yang diteliti sebanyak 61 orang dengan menggunakan design penelitian quasi experimental. Variabel bebas : model pembelajaran REACT dan model pembelajaran Learning Cycle 5E. Variabel terikat : kemampuan koneksi matematis. Uji instrumen dengan uji validitas dan uji reliabilitas. Uji validitas dengan rumus korelasi Product Moment didapat 7 soal yang valid. Uji reliabilitas dengan rumus Alpha menunjukan bahwa soal tersebut reliabel. Uji normalitas dengan uji Lilliefors menunjukan kedua sampel dari populasi yang berdistribusi normal. Uji homogenitas dengan uji Fisher menunjukan kedua sampel memiliki varians yang homogen. Uji hipotesis dengan uji-t  didapat  dengan alpha sebesar 0,05, maka  di tolak. Dengan demikian terdapat perbedaan kemampuan koneksi matematis peserta didik yang diajarkan dengan model pembelajaran REACT dan model pembelajaran Learning Cycle 5E di SMKN 39 Jakarta.   Kata Kunci: Kemampuan Koneksi Matematis, Model Pembelajaran REACT      Model Pembelajaran Learning Cycle 5E.

Epidemic 2014 enterovirus D68 cross-reacts with human rhinovirus on a respiratory molecular diagnostic platform.

Science.gov (United States)

McAllister, Shane C; Schleiss, Mark R; Arbefeville, Sophie; Steiner, Marie E; Hanson, Ryan S; Pollock, Catherine; Ferrieri, Patricia

2015-01-01

Enterovirus D68 (EV-D68) is an emerging virus known to cause sporadic disease and occasional epidemics of severe lower respiratory tract infection. However, the true prevalence of infection with EV-D68 is unknown, due in part to the lack of a rapid and specific nucleic acid amplification test as well as the infrequency with which respiratory samples are analyzed by enterovirus surveillance programs. During the 2014 EV-D68 epidemic in the United States, we noted an increased frequency of "low-positive" results for human rhinovirus (HRV) detected in respiratory tract samples using the GenMark Diagnostics eSensor respiratory viral panel, a multiplex PCR assay able to detect 14 known respiratory viruses but not enteroviruses. We simultaneously noted markedly increased admissions to our Pediatric Intensive Care Unit for severe lower respiratory tract infections in patients both with and without a history of reactive airway disease. Accordingly, we hypothesized that these "low-positive" RVP results were due to EV-D68 rather than rhinovirus infection. Sequencing of the picornavirus 5' untranslated region (5'-UTR) of 49 samples positive for HRV by the GenMark RVP revealed that 33 (67.3%) were in fact EV-D68. Notably, the mean intensity of the HRV RVP result was significantly lower in the sequence-identified EV-D68 samples (20.3 nA) compared to HRV (129.7 nA). Using a cut-off of 40 nA for the differentiation of EV-D68 from HRV resulted in 94% sensitivity and 88% specificity. The robust diagnostic characteristics of our data suggest that the cross-reactivity of EV-D68 and HRV on the GenMark Diagnostics eSensor RVP platform may be an important factor to consider in making accurate molecular diagnosis of EV-D68 at institutions utilizing this system or other molecular respiratory platforms that may also cross-react.

Position statement: start middle and high schools at 8:30 am or later to promote student health and learning.

Science.gov (United States)

Trevorrow, Tracy; Zhou, Eric S; Dietch, Jessica R; Gonzalez, Brian D

2018-03-13

The Society of Behavioral Medicine recommends school officials start middle and high school classes at 8:30 am or later. Such a schedule promotes students' sleep health, resulting in improvements in physical health, psychological well-being, attention and concentration, academic performance, and driving safety. In this position statement, we propose a four-tiered approach to promote later school start times for middle and high schools.

When compliments fail to flatter: American individualism and responses to positive stereotypes.

Science.gov (United States)

Siy, John Oliver; Cheryan, Sapna

2013-01-01

Five studies show that being the target of a positive stereotype is a negative interpersonal experience for those from individualistic cultures because positive stereotypes interfere with their desire to be seen as individuals separate from their groups. U.S.-born Asian Americans and women who heard a positive stereotype about their group in an intergroup interaction (e.g., "Asians are good at math," "women are nurturing") derogated their partner and experienced greater negative emotions than those who heard no stereotype. Negative reactions were mediated by a sense of being depersonalized, or "lumped together" with others in one's group, by the positive stereotype (Studies 1-3). Cross-cultural differences (Study 4) and an experimental manipulation of cultural self-construal (Study 5) demonstrated that those with an independent self-construal reacted more negatively to positive stereotypes than those with an interdependent self-construal. By bringing together research on stereotypes from the target's perspective with research on culture, this work demonstrates how cultural self-construals inform the way people interpret and respond to being the target of positive stereotypes.

Optimal stretching in the reacting wake of a bluff body.

Science.gov (United States)

Wang, Jinge; Tithof, Jeffrey; Nevins, Thomas D; Colón, Rony O; Kelley, Douglas H

2017-12-01

We experimentally study spreading of the Belousov-Zhabotinsky reaction behind a bluff body in a laminar flow. Locations of reacted regions (i.e., regions with high product concentration) correlate with a moderate range of Lagrangian stretching and that range is close to the range of optimal stretching previously observed in topologically different flows [T. D. Nevins and D. H. Kelley, Phys. Rev. Lett. 117, 164502 (2016)]. The previous work found optimal stretching in a closed, vortex dominated flow, but this article uses an open flow and only a small area of appreciable vorticity. We hypothesize that optimal stretching is common in advection-reaction-diffusion systems with an excitation threshold, including excitable and bistable systems, and that the optimal range depends on reaction chemistry and not on flow shape or characteristic speed. Our results may also give insight into plankton blooms behind islands in ocean currents.

The Student Plan

DEFF Research Database (Denmark)

Krejsler, John B.

2009-01-01

that must reconcile the challenges of student diversity, differentiated teaching, the documentation of achievement and so forth. Social technologies reduce complexity by coding procedures, thus signalling what is expected in terms of learning activities, and by coding subject positions, thereby guiding...... teachers and students in terms of the roles they may position themselves in. Some of the most prevalent social technologies adopted by schools today include project work, logbooks, social contracts, interactive testing, and student and personal action plans....

Simulation of moving boundaries interacting with compressible reacting flows using a second-order adaptive Cartesian cut-cell method

Science.gov (United States)

Muralidharan, Balaji; Menon, Suresh

2018-03-01

A high-order adaptive Cartesian cut-cell method, developed in the past by the authors [1] for simulation of compressible viscous flow over static embedded boundaries, is now extended for reacting flow simulations over moving interfaces. The main difficulty related to simulation of moving boundary problems using immersed boundary techniques is the loss of conservation of mass, momentum and energy during the transition of numerical grid cells from solid to fluid and vice versa. Gas phase reactions near solid boundaries can produce huge source terms to the governing equations, which if not properly treated for moving boundaries, can result in inaccuracies in numerical predictions. The small cell clustering algorithm proposed in our previous work is now extended to handle moving boundaries enforcing strict conservation. In addition, the cell clustering algorithm also preserves the smoothness of solution near moving surfaces. A second order Runge-Kutta scheme where the boundaries are allowed to change during the sub-time steps is employed. This scheme improves the time accuracy of the calculations when the body motion is driven by hydrodynamic forces. Simple one dimensional reacting and non-reacting studies of moving piston are first performed in order to demonstrate the accuracy of the proposed method. Results are then reported for flow past moving cylinders at subsonic and supersonic velocities in a viscous compressible flow and are compared with theoretical and previously available experimental data. The ability of the scheme to handle deforming boundaries and interaction of hydrodynamic forces with rigid body motion is demonstrated using different test cases. Finally, the method is applied to investigate the detonation initiation and stabilization mechanisms on a cylinder and a sphere, when they are launched into a detonable mixture. The effect of the filling pressure on the detonation stabilization mechanisms over a hyper-velocity sphere launched into a hydrogen

A Positive Psychology Intervention With Emerging Adults

OpenAIRE

Sophie Leontopoulou

2015-01-01

This study assessed the impact of a positive psychology intervention in a sample of 40 young men (35%) and women (65%) aged 18-30 years. Participants were 1st and 4th year undergraduate University students, postgraduate students and working youths. The study examined the effects of a battery of interventions commonly used in positive psychology interventions, including a video and three exercises (i.e. expressing gratitude, best possible selves, goal setting) on character strengths, hope, gra...

Promoting positive psychology using social networking sites: a study of new college entrants on Facebook.

Science.gov (United States)

Chang, Shu-Man; Lin, Yung-Hsiu; Lin, Chi-Wei; Chang, Her-Kun; Chong, Ping Pete

2014-04-29

This study explores the potential of promoting college students' positive psychological development using popular online social networks. Online social networks have dramatically changed the ways college students manage their social relationships. Social network activities, such as checking Facebook posts dominates students' Internet time and has the potential to assist students' positive development. Positive psychology is a scientific study of how ordinary individuals can apply their strength effectively when facing objective difficulties and how this capability can be cultivated with certain approaches. A positive message delivery approach was designed for a group of new college entrants. A series of positive messages was edited by university counselors and delivered by students to their Facebook social groups. Responses from each posted positive messages were collected and analyzed by researchers. The responses indicated that: (1) relationships of individual engagement and social influence in this study can partially explain the observed student behavior; (2) using class-based social groups can promote a positive atmosphere to enhance strong-tie relationships in both the physical and virtual environments, and (3) promoting student's positive attitudes can substantially impact adolescents' future developments, and many positive attitudes can be cultivated by emotional events and social influence.

Motivation, procedures and aims of reacting plasma experiments

International Nuclear Information System (INIS)

Miyahara, Akira

1982-01-01

A project of reacting plasma experiment (R-project) was proposed at the Institute of Plasma Physics (IPP), Nagoya University. It is necessary to bridge plasma physics and fusion engineering by means of a messenger wire like burning plasma experiment. This is a motivation of the R-project. The university linkage organization of Japan for fusion engineering category carried out a lot of contribution to R-tokamak design. The project consists of four items, namely, R-tokamak design, research and development (R and D), site and facilities, and international collaboration. The phase 1 experiment (R 1 - phase) corresponds to burning plasma experiment without D + T fuel, while the phase-2 experiment (R 2 -phase) with D + T fuel. One reference design was finished. Intensive efforts have been carried out by the R and D team on the following items, wall material, vacuum system, tritium system, neutronics, remote control system, pulsed superconducting magnet development, negative ion source, and alpha-particle diagnostics. The problems concerning site and major facilities are also important, because tritium handling, neutron and gamma-ray sky shines and the activation of devices cause impact to surrounding area. The aims of burning plasma experiment are to enter tritium into the fusion device, and to study burning plasma physics. (Kato, T.)

"I am a scientist": How setting conditions that enhance focused concentration positively relate to student motivation and achievement outcomes in inquiry-based science

Science.gov (United States)

Ellwood, Robin B.

This research investigated how student social interactions within two approaches to an inquiry-based science curriculum could be related to student motivation and achievement outcomes. This qualitative case study consisted of two cases, Off-Campus and On-Campus, and used ethnographic techniques of participant observation. Research participants included eight eighth grade girls, aged thirteen to fourteen years old. Data sources included formal and informal participant interviews, participant journal reflections, curriculum artifacts including quizzes, worksheets, and student-generated research posters, digital video and audio recordings, photographs, and researcher field notes. Data were transcribed verbatim and coded, then collapsed into emergent themes using NVIVO 9. The results of this research illustrate how setting conditions that promote focused concentration and communicative interactions can be positively related to student motivation and achievement outcomes in inquiry-based science. Participants in the Off-Campus case experienced more frequent states of focused concentration and out performed their peers in the On-Campus case on forty-six percent of classroom assignments. Off-Campus participants also designed and implemented a more cognitively complex research project, provided more in-depth analyses of their research results, and expanded their perceptions of what it means to act like a scientist to a greater extent than participants in the On-Campus case. These results can be understood in relation to Flow Theory. Student interactions that promoted the criteria necessary for initiating flow, which included having clearly defined goals, receiving immediate feedback, and maintaining a balance between challenges and skills, fostered enhanced student motivation and achievement outcomes. This research also illustrates the positive gains in motivation and achievement outcomes that emerge from student experiences with extended time in isolated areas referred to

Study of positioning techniques for radiography

International Nuclear Information System (INIS)

Maruyama, Toshinori; Yamamoto, Hideki

2008-01-01

A good positioning technique is of great importance in radiology in order to obtain accurate diagnostic information and reduce the patient's X-ray exposure. In positioning training, students place the phantom on the table under an X-ray tube, adjust the position of the phantom, and repeat the positioning practices until they can obtain fine diagnostic images. As X-ray films are usually used in radiography, the development of such films is necessary. In this kind of training practice, it takes a great deal of time to obtain the X-ray image at the phantom position. It is desirable for students to perform positioning accurately and to confirm the results of positioning within a short time. In this article, we propose a new positioning training method using digital image processing. First, we scan the skull phantom by CT (computed tomography) and obtain CT images. Next, we measure the positioning information of the phantom under the X-ray equipment by using scene analysis. Then, we develop a method that produces the plane image corresponding to the detected phantom position under the X-ray tube. It is expected that our method will be useful as a teaching device to help in the practice of the positioning techniques for various organs without X-ray exposure and, furthermore, in the development of X-ray films. (author)

Promoting Positive Learning in Australian Students Aged 10- to 12-Years-Old Using Attribution Retraining and Cognitive Behavioral Therapy: A Pilot Study

Science.gov (United States)

Chodkiewicz, Alicia R; Boyle, Christopher

2016-01-01

This study piloted an intervention using attribution retraining and cognitive behavioral therapy techniques to promote positive learning experiences and outcomes for students. This research is an important step to revitalise the dwindling field of attribution retraining research by assessing whether these techniques effectively improve student…

Insulation and Heat Treatment of Bi-2212 Wire for Wind-and-React Coils

Energy Technology Data Exchange (ETDEWEB)

Peter K. F. Hwang

2007-10-22

Higher Field Magnets demand higher field materials such as Bi-2212 round superconducting wire. The Bi-2212 wire manufacture process depends on the coil fabrication method and wire insulation material. Considering the wind-and-react method, the coil must unifirmly heated to the melt temperature and uniformly cooled to the solidification temperature. During heat treat cycle for tightly wound coils, the leakage melt from conductor can chemically react with insulation on the conductor and creat short turns in the coils. In this research project, conductor, insulation, and coils are made to systemically study the suitable insulation materials, coil fabrication method, and heat treatment cycles. In this phase I study, 800 meters Bi-2212 wire with 3 different insulation materials have been produced. Best insulation material has been identified after testing six small coils for insulation integrity and critical current at 4.2 K. Four larger coils (2" dia) have been also made with Bi-2212 wrapped with best insulation and with different heattreatment cycle. These coils were tested for Ic in a 6T background field and at 4.2 K. The test result shows that Ic from 4 coils are very close to short samples (1 meter) result. It demonstrates that HTS coils can be made with Bi-2212 wire with best insulation consistently. Better wire insulation, improving coil winding technique, and wire manufacture process can be used for a wide range of high field magnet application including acclerators such as Muon Collider, fusion energy research, NMR spectroscopy, MRI, and other industrial magnets.

Insulation and Heat Treatment of Bi-2212 Wires for Wind-and-React Coils

International Nuclear Information System (INIS)

Hwang, Peter K.F.

2007-01-01

Higher Field Magnets demand higher field materials such as Bi-2212 round superconducting wire. The Bi-2212 wire manufacture process depends on the coil fabrication method and wire insulation material. Considering the wind-and-react method, the coil must unifirmly heated to the melt temperature and uniformly cooled to the solidification temperature. During heat treat cycle for tightly wound coils, the leakage melt from conductor can chemically react with insulation on the conductor and creat short turns in the coils. In this research project, conductor, insulation, and coils are made to systemically study the suitable insulation materials, coil fabrication method, and heat treatment cycles. In this phase I study, 800 meters Bi-2212 wire with 3 different insulation materials have been produced. Best insulation material has been identified after testing six small coils for insulation integrity and critical current at 4.2 K. Four larger coils (2-inch dia) have been also made with Bi-2212 wrapped with best insulation and with different heattreatment cycle. These coils were tested for Ic in a 6T background field and at 4.2 K. The test result shows that Ic from 4 coils are very close to short samples (1 meter) result. It demonstrates that HTS coils can be made with Bi-2212 wire with best insulation consistently. Better wire insulation, improving coil winding technique, and wire manufacture process can be used for a wide range of high field magnet application including acclerators such as Muon Collider, fusion energy research, NMR spectroscopy, MRI, and other industrial magnets.

“Monstrous Appetites and Positive Emotions in True Blood, The Vampire Diaries and The Walking Dead.”

DEFF Research Database (Denmark)

Schubart, Rikke

2013-01-01

Looking at television series True Blood (2008–), The Vampire Diaries (2009–), and The Walking Dead (2010–) the article analyzes positive emotions in horror: the sexual emotions, trust, and hope. First part substitutes the positive-negative dichotomy of emotions with seeing emotions as coming......, positive and negative, from a functional and evolutionary perspective. Comparing horror to play-fighting and fiction to the pretend of play, the article suggests four reasons why horror is attractive: we learn to feel emotions (sensation), to react to emotions (evaluation), control our emotions (action...... tendency in the here-and-now), and to experiment (action tendency and planning for what-comes-next)....

The Effect of Motion Analysis Activities in a Video-Based Laboratory in Students' Understanding of Position, Velocity and Frames of Reference

Science.gov (United States)

Koleza, Eugenia; Pappas, John

2008-01-01

In this article, we present the results of a qualitative research project on the effect of motion analysis activities in a Video-Based Laboratory (VBL) on students' understanding of position, velocity and frames of reference. The participants in our research were 48 pre-service teachers enrolled in Education Departments with no previous strong…

Students' Awareness of Science Teachers' Leadership, Attitudes toward Science, and Positive Thinking

Science.gov (United States)

Lu, Ying-Yan; Chen, Hsiang-Ting; Hong, Zuway-R.; Yore, Larry D.

2016-01-01

There appears to be a complex network of cognitive and affective factors that influence students' decisions to study science and motivate their choices to engage in science-oriented careers. This study explored 330 Taiwanese senior high school students' awareness of their science teacher's learning leadership and how it relates to the students'…

"Everyone's a Comedian." No Really, They Are: Using Humor in the Online and Traditional Classroom

Science.gov (United States)

Smith, Victoria D.; Wortley, Amy

2017-01-01

The effects of the incorporation of instructor humor in both the traditional and online classroom settings was examined. Students react to instructor humor in positive ways that demonstrate both increased engagement with the material and increased information recall following the use of instructor humor in lecture. Challenges of instructor and…

Student Engagement: Body, Mind and Heart – A Proposal for an Embedded Multi-Dimensional Student Engagement Framework

OpenAIRE

Pickford, R

2016-01-01

This paper considers student engagement in the context of a diverse higher education population and explores what institutions can do to impact positively on student engagement. The paper takes as its starting point the goals of higher education and the purposes of student engagement and reflects on the politicisation of student engagement, and the relative positioning of the student and the higher education institution in relation to student engagement. The paper suggests conditions for and ...

Teachers' and Students' Work-Culture Variables Associated with Positive School Outcome.

Science.gov (United States)

Goldwater, Orna D.; Nutt, Roberta L.

1999-01-01

Investigates whether goodness of fit between teachers' and students' backgrounds is associated with subjective grading and objective achievement at school. One hundred one seventh graders and twenty of their teachers completed the Self-Report Family Inventory. Similarity between teachers' and students' work-culture variables was associated with…

Possible effects of small-scale intermittency in turbulent reacting flows

International Nuclear Information System (INIS)

Sreenivasan, K.R.

2006-12-01

It is now well established that quantities such as energy dissipation, scalar dissipation and enstrophy possess huge fluctuations in turbulent flows, and that the fluctuations become increasingly stronger with increasing Reynolds number of the flow. The effects of this small-scale 'intermittency' on various aspects of reacting flows have not been addressed fully. This paper draws brief attention to a few possible effects on reaction rates, flame extinction, flamelet approximation, conditional moment closure methods, and so forth, besides commenting on possible effects on the resolution requirements of direct numerical simulations of turbulence. We also discuss the likelihood that large-amplitude events in a given class of shear flows are characteristic of that class, and that, plausible estimates of such quantities cannot be made, in general, on the hypothesis that large and small scales are independent. Finally, we briefly describe some ideas from multifractals as a potentially useful tool for an economical handling of a few of the problems touched upon here. (author)

Wildfire simulation using a chemically-reacting plume in a crossflow

Science.gov (United States)

Breidenthal, Robert; Alvarado, Travis; Potter, Brian

2010-11-01

Water tunnel experiments reveal the flame length of a chemically-reacting plume in a crossflow. Salt water containing a pH indicator and a base is slowly injected from above into the test section of a water tunnel containing an acidic solution. The flame length is measured optically as a function of the buoyancy flux, crossflow speed, and volume equivalence ratio of the chemical reaction. Based on earlier work of Broadwell with the transverse jet, a simple dilution model predicts the flame length of the transverse plume. The plume observations are in accord with the model. As with the jet, there is a minimum in the flame length of the plume at a transition between two self-similar regimes, corresponding to the formation of a pair of counter-rotating vortices at a certain crossflow speed. At the transition, there is a maximum in the entrainment and mixing rates. In an actual wildfire with variable winds, this transition may correspond to a dangerous condition for firefighters.

CERN reacts to increased costs to completion of the LHC

CERN Multimedia

2002-01-01

Aspects of LHC construction. The CERN Council, where the representatives of the 20 Member States of the Organization decide on scientific programmes and financial resources, held its 120th session on 14 December under the chairmanship of Prof. Maurice Bourquin (CH). CERN adjusts to the LHC Director-General, Luciano Maiani, stressed that CERN was now fully engaged in the LHC and outlined the first moves to react to the increased cost to completion of the LHC. The new accelerator is an extremely complex, high-tech project which CERN is building under very severe conditions. However, the technical challenges are solved and industrial production of accelerator elements, and installation are starting. Professor Maiani said that 2001 had been a very hard but decisive year for CERN. An important milestone had been passed during this meeting with the approval of the LHC dipole magnets contract, the last major contract for the accelerator. The new costs to completion of the LHC project are now clear. A first propos...

Studies on the different forms of material reacting with antiinsulin antibodies in the fetal and adult rat

International Nuclear Information System (INIS)

Felix, J.M.; Sutter-Dub, M.T.; Legrele, C.; Reims Univ., 51

1975-01-01

The nature of peak B (MW = 10-12,000, proinsulin) and peak C (MW = 50-100,000, 'big big' insulin) materials detected by the double antibody (DA) procedure in elution profiles of rat sera after Sephadex G 50 or G 100 chromatography (cf. preceding companion paper) is further investigated. Peak B is converted by mild tryptic digestion in an immunoreactive material behaving in rechromatography exactly like insulin monomer. Peak C is less easily detected by the dextran coated charcoal (DCC) method; it resists 8 M urea 37 0 C for 1 hr, is not an artifact due to the complement system; its relative importance is very much reduced in pancreatic extracts or perifusates. Incubation of biologically active 125 I labelled insulin in rat sera results in appearance of labelled material behaving on chromatography like peak C natural material, having the electrophoretic mobility of rat α 1 globulins and albumin, and resisting 8 M urea, acidic pHs and 0.5 M NaCl. Similar incubation in buffer supplemented with bovine albumin results in appearance of a labelled material having the electrophoretic mobility of beef albumin; N-ethyl-maleimide provides against this binding, which might result from (S-S)-(SH) interchanges. Rat α globulins and albumin (but not beef albumin) cross-react with the DA procedure; they do not react with the DCC method. Insulin bound to plasma proteins react with both methods. It is suggested that peak C material, as detected by the DA method in rat serum, consists both of insulin covalently bound to plasma proteins and of certain plasma proteins; the DCC method detects only bound insulin. In streptozotocin treated rats, peak C material persists after the complete disappearance of insulin and proinsulin when detected by the (DA) procedure, but disappears when detected by the DCC procedure. (orig.) [de

Studies on the different forms of material reacting with antiinsulin antibodies in the fetal and adult rat

Energy Technology Data Exchange (ETDEWEB)

Felix, J M; Sutter-Dub, M T; Legrele, C [Reims Univ., 51 (France). Lab. de Physiologie Animale; Reims Univ., 51 (France). Centre de Biologie et de Biochimie du Developpement)

1975-09-01

The nature of peak B (MW = 10-12,000, proinsulin) and peak C (MW = 50-100,000, 'big big' insulin) materials detected by the double antibody (DA) procedure in elution profiles of rat sera after Sephadex G 50 or G 100 chromatography (cf. preceding companion paper) is further investigated. Peak B is converted by mild tryptic digestion in an immunoreactive material behaving in rechromatography exactly like insulin monomer. Peak C is less easily detected by the dextran coated charcoal (DCC) method; it resists 8 M urea 37/sup 0/C for 1 hr, is not an artifact due to the complement system; its relative importance is very much reduced in pancreatic extracts or perifusates. Incubation of biologically active /sup 125/I labelled insulin in rat sera results in appearance of labelled material behaving on chromatography like peak C natural material, having the electrophoretic mobility of rat ..cap alpha../sub 1/ globulins and albumin, and resisting 8 M urea, acidic pHs and 0.5 M NaCl. Similar incubation in buffer supplemented with bovine albumin results in appearance of a labelled material having the electrophoretic mobility of beef albumin; N-ethyl-maleimide provides against this binding, which might result from (S-S)-(SH) interchanges. Rat ..cap alpha.. globulins and albumin (but not beef albumin) cross-react with the DA procedure; they do not react with the DCC method. Insulin bound to plasma proteins react with both methods. It is suggested that peak C material, as detected by the DA method in rat serum, consists both of insulin covalently bound to plasma proteins and of certain plasma proteins; the DCC method detects only bound insulin. In streptozotocin treated rats, peak C material persists after the complete disappearance of insulin and proinsulin when detected by the (DA) procedure, but disappears when detected by the DCC procedure.

Capturing student mathematical engagement through differently enacted classroom practices: applying a modification of Watson's analytical tool

Science.gov (United States)

Patahuddin, Sitti Maesuri; Puteri, Indira; Lowrie, Tom; Logan, Tracy; Rika, Baiq

2018-04-01

This study examined student mathematical engagement through the intended and enacted lessons taught by two teachers in two different middle schools in Indonesia. The intended lesson was developed using the ELPSA learning design to promote mathematical engagement. Based on the premise that students will react to the mathematical tasks in the forms of words and actions, the analysis focused on identifying the types of mathematical engagement promoted through the intended lesson and performed by students during the lesson. Using modified Watson's analytical tool (2007), students' engagement was captured from what the participants' did or said mathematically. We found that teachers' enacted practices had an influence on student mathematical engagement. The teacher who demonstrated content in explicit ways tended to limit the richness of the engagement; whereas the teacher who presented activities in an open-ended manner fostered engagement.

The Value of Forensic Competition for Oral Interpretation Students. Position Paper.

Science.gov (United States)

Manchester, Bruce B.

Student interest in individual events in intercollegiate forensics competition is on the rise in the United States. Not only does the individual events tournament format reward depth of analysis, it also rewards students' abilities to transfer their critical insights into appropriate physical and vocal cues. The individual events tournament…

Can memory training positively affect the skills of learning a foreign language and support learning English by older students?

Directory of Open Access Journals (Sweden)

Agata Kozak

2012-12-01

Full Text Available The experiment covered in this paper was conducted from November 2011 until February 2012 in the University of Third Age at the University of Wrocław in Poland as a part of the Third Age and New Technologies (TANT project which was realised as a Grundtvig partnership programme. The aim of the experiment was to determine whether memory training can positively affect learning a foreign language (English by senior students.

Mindfulness training for stress management: a randomised controlled study of medical and psychology students.

Science.gov (United States)

de Vibe, Michael; Solhaug, Ida; Tyssen, Reidar; Friborg, Oddgeir; Rosenvinge, Jan H; Sørlie, Tore; Bjørndal, Arild

2013-08-13

Distress and burnout among medical and psychology professionals are commonly reported and have implications for the quality of patient care delivered. Already in the course of university studies, medicine and psychology students report mental distress and low life satisfaction. There is a need for interventions that promote better coping skills in students in order to prevent distress and future burnout. This study examines the effect of a seven-week Mindfulness-Based Stress Reduction (MBSR) programme on mental distress, study stress, burnout, subjective well-being, and mindfulness of medical and psychology students. A total of 288 students (mean age = 23 years, 76% female) from the University of Oslo and the University of Tromsø were randomly allocated to an intervention or control group. The control group continued with their standard university courses and received no intervention. Participants were evaluated using self-reported measures both before and after the intervention. These were: the 'General Health Questionnaire, Maslach Burnout Inventory Student version, Perceived Medical School Stress, Subjective Well-being, and Five Facet Mindfulness Questionnaire' and additional indices of compliance. Following the intervention, a moderate effect on mental distress (Hedges'g 0.65, CI = .41, .88), and a small effect on both subjective well-being (Hedges'g 0.40, CI = .27, .63) and the mindfulness facet 'non-reacting' (Hedges'g 0.33, CI = .10, .56) were found in the intervention group compared with the control group. A higher level of programme attendance and reported mindfulness exercises predicted these changes. Significant effects were only found for female students who additionally reported reduced study stress and an increase in the mindfulness facet 'non-judging'. Gender specific effects of participation in the MBSR programme have not previously been reported, and gender differences in the present study are discussed. Female medical and psychology

Delaying Middle School and High School Start Times Promotes Student Health and Performance: An American Academy of Sleep Medicine Position Statement.

Science.gov (United States)

Watson, Nathaniel F; Martin, Jennifer L; Wise, Merrill S; Carden, Kelly A; Kirsch, Douglas B; Kristo, David A; Malhotra, Raman K; Olson, Eric J; Ramar, Kannan; Rosen, Ilene M; Rowley, James A; Weaver, Terri E; Chervin, Ronald D

2017-04-15

During adolescence, internal circadian rhythms and biological sleep drive change to result in later sleep and wake times. As a result of these changes, early middle school and high school start times curtail sleep, hamper a student's preparedness to learn, negatively impact physical and mental health, and impair driving safety. Furthermore, a growing body of evidence shows that delaying school start times positively impacts student achievement, health, and safety. Public awareness of the hazards of early school start times and the benefits of later start times are largely unappreciated. As a result, the American Academy of Sleep Medicine is calling on communities, school boards, and educational institutions to implement start times of 8:30 AM or later for middle schools and high schools to ensure that every student arrives at school healthy, awake, alert, and ready to learn. © 2017 American Academy of Sleep Medicine

Long-Term Effects of Primary Schools on Educational Positions of Students 2 and 4 Years after the Start of Secondary Education

Science.gov (United States)

Vanwynsberghe, Griet; Vanlaar, Gudrun; Van Damme, Jan; De Fraine, Bieke

2017-01-01

Although the importance of primary schools in the long term is of interest in educational effectiveness research, few studies have examined the long-term effects of schools over the past decades. In the present study, long-term effects of primary schools on the educational positions of students 2 and 4 years after starting secondary education are…

NASN position statement: Sexual orientation and gender identity/expression (sexual minority students): school nurse practice.

Science.gov (United States)

Bradley, Beverly; Kelts, Susan; Robarge, Deb; Davis, Catherine; Delger, Suzey; Compton, Linda

2013-03-01

It is the position of the National Association of School Nurses that all students, regardless of their sexual orientation or the sexual orientation of their parents and family members, are entitled to a safe school environment and equal opportunities for a high level of academic achievement and school participation/involvement. Sexual minority persons are those who identify themselves as gay, lesbian, or bisexual (LGB) or are unsure of their sexual orientation, or those who have had sexual contact with persons of the same sex or both sexes (Kann et al., 2011). Sexual minority is thought to be a more inclusive and neutral term. For the purposes of this statement, the term sexual minority will be used in lieu of LGBTQ (lesbian, gay, bisexual, transgender, or questioning).

The effects of positive emotion priming on self-reported reckless driving.

Science.gov (United States)

Taubman-Ben-Ari, Orit

2012-03-01

Five studies examined the effects of positive emotion priming on the willingness to drive recklessly. In all five, young drivers were exposed to one of the following primes of positive affect: a positive mood story; happy memories; an exciting film; a relaxing film; or thoughts on the meaning in life. Following the prime, the participants were asked to report on their willingness to drive recklessly. The responses were compared to those of groups exposed either to neutral affect, another kind of positive affect, or negative affect priming. In two of the studies, participants were also asked to report on their driving styles (risky, anxious, angry, or careful) as a second dependent variable. Positive affect, especially in the form of arousal, was found to be related to higher willingness to drive recklessly. Although men tended to report higher intentions to drive recklessly, men and women did not react differently to the emotional induction. Most interestingly, positive emotions of a relaxing nature, as well as thinking about the meaning in life, lowered the willingness to engage in risky driving. The discussion emphasizes the importance of looking for new ways to use positive emotions effectively in road safety interventions, and considers the practical implications of the studies. Copyright © 2011 Elsevier Ltd. All rights reserved.

Nonlinear Stability and Structure of Compressible Reacting Mixing Layers

Science.gov (United States)

Day, M. J.; Mansour, N. N.; Reynolds, W. C.

2000-01-01

The parabolized stability equations (PSE) are used to investigate issues of nonlinear flow development and mixing in compressible reacting shear layers. Particular interest is placed on investigating the change in flow structure that occurs when compressibility and heat release are added to the flow. These conditions allow the 'outer' instability modes- one associated with each of the fast and slow streams-to dominate over the 'central', Kelvin-Helmholtz mode that unaccompanied in incompressible nonreacting mixing layers. Analysis of scalar probability density functions in flows with dominant outer modes demonstrates the ineffective, one-sided nature of mixing that accompany these flow structures. Colayer conditions, where two modes have equal growth rate and the mixing layer is formed by two sets of vortices, offer some opportunity for mixing enhancement. Their extent, however, is found to be limited in the mixing layer's parameter space. Extensive validation of the PSE technique also provides a unique perspective on central- mode vortex pairing, further supporting the view that pairing is primarily governed perspective sheds insight on how linear stability theory is able to provide such an accurate prediction of experimentally-observed, fully nonlinear flow phenomenon.

Dynamics of personal development on healthy students

Directory of Open Access Journals (Sweden)

I.E. Kramida

2013-04-01

Full Text Available The aim is to study the effectiveness of different physical training for the relatively healthy students. The study involved 1004 students. The directions of development of the students' positive personal qualities. Found that the positive development of personality of students observed mostly on the first and third year than in the second. Could not find significant differences between the growth estimates of development of personality traits of students in classes in the sample program and the program specializations. Found that the rate of development of students' personality traits minor: the average growth estimates for core positive personal qualities for 3 years does not exceed 10% of the maximum possible level. Recommended in the classroom more emphasis on developing positive personality traits. It is shown that special attention should be paid to the development of emotional stability of students and their tolerance towards other people.

A personal connection: Promoting positive attitudes towards teaching and learning.

Science.gov (United States)

Lujan, Heidi L; DiCarlo, Stephen E

2017-09-01

Students' attitudes towards teaching and learning must be addressed with the same seriousness and effort as we address content. Establishing a personal connection and addressing our students' basic psychological needs will produce positive attitudes towards teaching and learning and develop life-long learners. It will also promote constructive student-teacher relationships that have a profound influence on our students' approach towards school. To begin this process, consider the major tenets of the Self-Determination Theory. The Self-Determination Theory of human motivation focuses on our students' innate psychological needs and the degree to which an individual's behavior is self-motivated and self-determined. Faculty can satisfy the innate psychological needs by addressing our students' desire for relatedness, competence and autonomy. Relatedness refers to our students' need to feel connected to others, to be a member of a group, to have a sense of communion and to develop close relationships with others. Competence is believing our students can succeed , challenging them to do so and imparting that belief in them. Autonomy involves considering the perspectives of the student and providing relevant information and opportunities for student choice and initiating and regulating their own behaviors. Establishing a personal connection and addressing our students' basic psychological needs will improve our teaching, inspire and engage our students and promote positive attitudes towards teaching and learning while reducing competition and increasing compassion. These are important goals because unless students are inspired and motivated and have positive attitudes towards teaching and learning our efforts will fail to meet their full potential. Anat Sci Educ 10: 503-507. © 2017 American Association of Anatomists. © 2017 American Association of Anatomists.

Appreciative Pedagogy: Constructing Positive Models for Learning.

Science.gov (United States)

Yballe, Leodones; O'Connor, Dennis

2000-01-01

Appreciative inquiry, an approach focused on generation of a vision for an organization, may be adapted for management classes. Students and teachers conduct collaborative inquiry into successful experiences, creating positive images that generate positive action in the classroom. (SK)

Effect of Student Participation in Business Center, Parent's Role, and Self-Efficiency to Entrepreneurship Intention Students of SMK

Directory of Open Access Journals (Sweden)

Andani Apriliana

2017-11-01

Full Text Available The purpose of this research (1 condition of students’ participation in the business center, parental role, self-efficacy, and student entrepreneur willingness, (2 influence of student participation in the business center, parental role, and self-efficacy partially to student entrepreneur willingness, (3 the influence of participation in the business center, parental role, and self-efficacy on student entrepreneurship willingness, and (4 difference entrepreneur willingness for the first year and second-year students. This study is a comparative causal and technique of collecting data using questionnaire. The result of this research (1 students’ participation in Business Center have high categorized and positively and significantly influence to willingness, (2 parental role is a very high categorical student and have the positive and significant influence to student entrepreneurship willingness, (3 self-efficacy of the high categorized student, but not positively and significantly influence to intent entrepreneurship, (4 willingness of entrepreneurship is very high categorize, (5 students’ participation in Business Center and parental role simultaneously has positively and significantly influence on willingness, (6 there is a difference of willingness of student entrepreneur for the first year students with second year students, (7 there is no difference in student participation in Business Center for the first year and second year students, (8 there is a difference of parental role of first year and second year students, and (9 there no difference of self-efficacy for the first year with second year students.

Ergo-effects of designed school furniture and sitting positions on students behaviour and Musculo-Skeletal Disorder in Nigerian tertiary institutions

Directory of Open Access Journals (Sweden)

A. I Musa

2011-07-01

Full Text Available Improper design of school furniture is one of the contributing factors to back pain among students as indicated in some studies. In the case of designing school furniture where sitting constitutes a considerable time in the school, seat becomes important for comfort. This study is carried out in three selected institutions in Nigeria to determine level of musculoskeletal disorder in students’ and the furniture that they use. 720 questionnaires with 240 students (120 boys and 120 girls drawn from each participating institutions were administered and 675 responses were received. The results show that the number of students having MSD, accounted for 93.75%. However, the distributions of pain in the body parts in each school were different. The musculoskeletal pain, mostly concentrated on neck, right shoulders right elbow right wrist right hand, upper back and lower back. The result also reveals that most of the students are sitting on chairs with seat that are too high and too deep or too shallow and of tables that are too high. However, it is recommended that further study on effect of designed school furniture and sitting position in larger sample of students’ representative in Nigeria tertiary institutions should be carried out in order to reduce the effect of body pains.

How Did the Asian Stock Markets React to Bank Mergera after the 1997 Financial Crisis?

OpenAIRE

Meslier-Crouzille , Céline; Lepetit , Laetitia; Bautista , Carlos C.

2008-01-01

International audience; The objective of this paper is to empirically assess the stock market reaction to the announcement of bank mergers and acquisitions (M&As) in eight East Asian countries over the 1997-2003 period. M&As are classified according to the status of entity, the time period of the deal and the maturity of the banking system. A bivariate GARCH model is used to estimate abnormal returns taking beta conditional variability into account. We find that the market reacted negatively ...

Positional games

CERN Document Server

Hefetz, Dan; Stojaković, Miloš; Szabó, Tibor

2014-01-01

This text serves as a thorough introduction to the rapidly developing field of positional games. This area constitutes an important branch of combinatorics, whose aim it is to systematically develop an extensive mathematical basis for a variety of two-player perfect information games. These range from such popular games as Tic-Tac-Toe and Hex to purely abstract games played on graphs and hypergraphs. The subject of positional games is strongly related to several other branches of combinatorics such as Ramsey theory, extremal graph and set theory, and the probabilistic method. These notes cover a variety of topics in positional games, including both classical results and recent important developments. They are presented in an accessible way and are accompanied by exercises of varying difficulty, helping the reader to better understand the theory. The text will benefit both researchers and graduate students in combinatorics and adjacent fields.

Pressure to cooperate: is positive reward interdependence really needed in cooperative learning?

Science.gov (United States)

Buchs, Céline; Gilles, Ingrid; Dutrévis, Marion; Butera, Fabrizio

2011-03-01

BACKGROUND. Despite extensive research on cooperative learning, the debate regarding whether or not its effectiveness depends on positive reward interdependence has not yet found clear evidence. AIMS. We tested the hypothesis that positive reward interdependence, as compared to reward independence, enhances cooperative learning only if learners work on a 'routine task'; if the learners work on a 'true group task', positive reward interdependence induces the same level of learning as reward independence. SAMPLE. The study involved 62 psychology students during regular workshops. METHOD. Students worked on two psychology texts in cooperative dyads for three sessions. The type of task was manipulated through resource interdependence: students worked on either identical (routine task) or complementary (true group task) information. Students expected to be assessed with a Multiple Choice Test (MCT) on the two texts. The MCT assessment type was introduced according to two reward interdependence conditions, either individual (reward independence) or common (positive reward interdependence). A follow-up individual test took place 4 weeks after the third session of dyadic work to examine individual learning. RESULTS. The predicted interaction between the two types of interdependence was significant, indicating that students learned more with positive reward interdependence than with reward independence when they worked on identical information (routine task), whereas students who worked on complementary information (group task) learned the same with or without reward interdependence. CONCLUSIONS. This experiment sheds light on the conditions under which positive reward interdependence enhances cooperative learning, and suggests that creating a real group task allows to avoid the need for positive reward interdependence. © 2010 The British Psychological Society.

Intensi Berwirausaha Pada Pelajar Kelas Ekstrakurikuler Kewirausahaan SMAK St. Louis 1 Di Surabaya [The Entrepreneurship Intentions of Entrepreneurship Students in Extracurricular Classes at SMAK St. Louis 1 in Surabaya

Directory of Open Access Journals (Sweden)

Gregorius Romaryo Tanubun

2016-10-01

Full Text Available The purpose of this research is to understand: (1 the influence of family on entrepreneur intention; (2 the impact of entrepreneurial study on entrepreneur intention; and (3 the difference in entrepreneurial intention among an entrepreneurial class of students at SMAK St. Louis 1 in Surabaya. The population of this research is students of an entrepreneurial class at SMAK St. Louis 1 in  Surabaya. The sampling technique used is census with 40 respondents as samples. This research is a quantitative research with multiple regression method and independent samples t-test with SPSS 23 as analysis tool. The findings of this research indicate that: (1 family variable (K reacts significantly negative towards entrepreneurial intention (IB, (2 entrepreneurial education variable (PK reacts significantly towards entrepreneurial intention (IB, and (3 no difference is found between men and women.

Linear equations and rap battles: how students in a wired classroom utilized the computer as a resource to coordinate personal and mathematical positional identities in hybrid spaces

Science.gov (United States)

Langer-Osuna, Jennifer

2015-03-01

This paper draws on the constructs of hybridity, figured worlds, and cultural capital to examine how a group of African-American students in a technology-driven, project-based algebra classroom utilized the computer as a resource to coordinate personal and mathematical positional identities during group work. Analyses of several vignettes of small group dynamics highlight how hybridity was established as the students engaged in multiple on-task and off-task computer-based activities, each of which drew on different lived experiences and forms of cultural capital. The paper ends with a discussion on how classrooms that make use of student-led collaborative work, and where students are afforded autonomy, have the potential to support the academic engagement of students from historically marginalized communities.

Identifying potential engaging leaders within medical education: The role of positive influence on peers.

Science.gov (United States)

Michalec, Barret; Veloski, J Jon; Hojat, Mohammadreza; Tykocinski, Mark L

2014-08-26

Abstract Background: Previous research has paid little to no attention towards exploring methods of identifying existing medical student leaders. Aim: Focusing on the role of influence and employing the tenets of the engaging leadership model, this study examines demographic and academic performance-related differences of positive influencers and if students who have been peer-identified as positive influencers also demonstrate high levels of genuine concern for others. Methods: Three separate fourth-year classes were asked to designate classmates that had significant positive influences on their professional and personal development. The top 10% of those students receiving positive influence nominations were compared with the other students on demographics, academic performance, and genuine concern for others. Results: Besides age, no demographic differences were found between positive influencers and other students. High positive influencers were not found to have higher standardized exam scores but did receive significantly higher clinical clerkship ratings. High positive influencers were found to possess a higher degree of genuine concern for others. Conclusion: The findings lend support to (a) utilizing the engaging model to explore leaders and leadership within medical education, (b) this particular method of identifying existing medical student leaders, and (c) return the focus of leadership research to the power of influence.

The effect of teacher’s positive personal resource of features of students’ emotional states

Directory of Open Access Journals (Sweden)

R.A. Trulyaev

2013-10-01

Full Text Available We reveal the psychological mechanisms of impact of the formation level of the teacher’s positive values on the academic performance of students, one of the key components of which are the emotional states of students. We describe a study aimed to test the hypothesis that the positive values and standing behind them “strong” character traits of the teacher determine the emotional states specific of his students during the lesson. The study involved 241 teachers of school subjects and 498 pupils of VI, VIII, X, XI grades of several schools in Krivoy Rog. The study demonstrated that a high level of expression of teacher’s positive values, reflected in his professional qualities, provide the appearance of positive emotional states of students. We also revealed patterns of influence of teacher’s positive personal resource on the intensity of the emotional states experienced by students during lessons.

Creativity as an Attribute of Positive Psychology: The Impact of Positive and Negative Affect on the Creative Personality

Science.gov (United States)

Charyton, Christine; Hutchison, Shannon; Snow, Lindsay; Rahman, Mohammed A.; Elliott, John O.

2009-01-01

Positive psychology explores how optimism can lead to health, happiness, and creativity. However, questions remain as to how affective states influence creativity. Data on creative personality, optimism, pessimism, positive and negative affect, and current and usual happiness ratings were collected on 161 college students enrolled in an…

Comparative analysis of positive and negative attitudes toward statistics

Science.gov (United States)

Ghulami, Hassan Rahnaward; Ab Hamid, Mohd Rashid; Zakaria, Roslinazairimah

2015-02-01

Many statistics lecturers and statistics education researchers are interested to know the perception of their students' attitudes toward statistics during the statistics course. In statistics course, positive attitude toward statistics is a vital because it will be encourage students to get interested in the statistics course and in order to master the core content of the subject matters under study. Although, students who have negative attitudes toward statistics they will feel depressed especially in the given group assignment, at risk for failure, are often highly emotional, and could not move forward. Therefore, this study investigates the students' attitude towards learning statistics. Six latent constructs have been the measurement of students' attitudes toward learning statistic such as affect, cognitive competence, value, difficulty, interest, and effort. The questionnaire was adopted and adapted from the reliable and validate instrument of Survey of Attitudes towards Statistics (SATS). This study is conducted among engineering undergraduate engineering students in the university Malaysia Pahang (UMP). The respondents consist of students who were taking the applied statistics course from different faculties. From the analysis, it is found that the questionnaire is acceptable and the relationships among the constructs has been proposed and investigated. In this case, students show full effort to master the statistics course, feel statistics course enjoyable, have confidence that they have intellectual capacity, and they have more positive attitudes then negative attitudes towards statistics learning. In conclusion in terms of affect, cognitive competence, value, interest and effort construct the positive attitude towards statistics was mostly exhibited. While negative attitudes mostly exhibited by difficulty construct.

Assessing Whether Religious Behaviors and Positive and Negative Affect are Associated with Alcohol Use and Abuse Among a Sample of College Students Living in the Midwest.

Science.gov (United States)

Carmack, Chakema C; Lewis, Rhonda K

2016-06-01

Alcohol use and abuse are a problem on college campuses. Religious behaviors (religious attendance, prayer, and importance) have been shown to be a protective factor against alcohol use among college students. This study examined the role religious behaviors and positive and negative affect had on drinking (alcohol use and alcohol to intoxication). College students (765) completed an online survey. The results showed that college students who attended religious services were less likely to use alcohol than those who did not attend religious services. The results have important implications for college administrators and policy makers. Limitations and future research will be discussed.

Educational and individual factors associated with positive change in and reaffirmation of medical students' intention to practice in underserved areas.

Science.gov (United States)

Boscardin, Christy K; Grbic, Douglas; Grumbach, Kevin; O'Sullivan, Patricia

2014-11-01

The projected U.S. physician shortage will disproportionately affect underserved areas. This study examined the impact of medical school educational experiences on positive changes in and reaffirmation of students' intention to practice in underserved areas (practice intention). Medical students (n = 7,361) from 113 U.S. MD-granting medical schools who graduated in 2009-2010 and responded to both the Association of American Medical Colleges' 2006 Matriculating Student Questionnaire and 2010 Graduation Questionnaire were included. Multilevel logistic regression analyses were conducted to determine factors associated with change in and reaffirmation of practice intention. After controlling for individual characteristics, community health field experience (adjusted odds ratio [OR]: 1.36; 95% CI: 1.18, 1.57), learning another language (OR: 1.41; 95% CI: 1.22, 1.63), cultural competence/awareness experience (OR: 1.38; 95% CI: 1.21, 1.58), becoming more aware of perspectives of individuals from different backgrounds (OR: 1.24; 95% CI: 1.04, 1.48), and attending schools with higher social mission scores (OR: 1.66; 95% CI: 1.28, 2.16) were all significantly associated with positive changes in practice intention from matriculation to graduation. Field experience in community health (OR: 1.24; 95% CI: 0.99, 1.53), learning another language (OR: 1.29; 95% CI: 1.01, 1.65), and attending schools with higher social mission scores (OR: 1.62; 95% CI: 1.09, 2.43) were all significantly associated with reaffirmation of practice intention at graduation. Multifaceted factors are associated with practice intention. This study suggests medical schools can play active roles in alleviating the physician shortage in underserved areas through targeted curricular interventions and recruitment.

Addressing False Positives in Early Reading Assessment Using Intervention Response Data

Science.gov (United States)

McAlenney, Athena Lentini; Coyne, Michael D.

2015-01-01

The current study examined a solution to high false positive reading risk classification rates in early kindergarten by investigating a method of identifying students with possible false positive risk classifications and returning them to general classroom instruction. Researchers assessed kindergarten students (N = 105) identified as at risk who…

Design Modifications, Fabrication and Test of HFDB-03 Racetrack Magnet Wound with Pre-Reacted Nb3Sn Rutherford Cable

International Nuclear Information System (INIS)

Ambrosio, G.; Andreev, N.; Barzi, E.; Bhashyam, S.; Carcagno, R.; Feher, S.; Imbasciati, L.; Lamm, M.; Pischalnikov, Y.; Tartaglia, M.; Tompkins, J.; Zlobin, A.V.

2004-01-01

A 10 T racetrack magnet (HFDB-03) wound with pre-reacted Nb3Sn Rutherford cable has been fabricated and tested at Fermilab. This magnet is the third one in a proof-of-principle series for the use of the React-and-Wind technology in common-coil dipole magnets for future accelerators. It consists of two flat racetrack coils (28 turns each) separated by 5 mm. The maximum field on the coil, at the short sample limit of 16530 A, is 10 tesla. The cable has 41 strands with 0.7 mm diameter and the minimum bend radius in the magnet ends is 90 mm. The predecessor of this magnet (HFDB-02) reached 78 % of the short sample limit at 7.7 T. The mechanical design was improved and the fabrication procedure was slightly modified in order to address possible causes of limitation. In this paper we present the mechanical design and analysis of HFDB-03, the modifications to the fabrication procedure and the test results

Impact of small variations in LDR for late-reacting tissue in gyn brachytherapy

International Nuclear Information System (INIS)

Bourel, Victor J.; Torre, Marcela de la; Rodriguez, Isabel

1996-01-01

Introduction: The linear-quadratic model shows that while a slight variation in the LDR Brachytherapy dose rate affects just a little the tumoral tissue ERD (Extrapolated Response Dose), the effect can be very strong in the late reacting tissues. The LDR Brachytherapy in cervix cancer is done with a dose rate in point A that range between 0.5 Gy/h and 0.7 Gy/h. This small range is a very heavy variable to find equivalent schemes. Material and Methods: Whith the LC10 program (based in the linear-quadratic model developed in our centre) a radiobiological analysis of the GYN Brachytherapy considering the dosimetric distribution of the most usual applicators is done. Different studies show that the critical rectal and bladder point doses in reference to point A ranges between 60% and 80%. Bearing this in mind, and the typical variables (tissue parameters, number of fractions, dose per fraction, total dose, etc.) the effect of the LDR dose rate variation in particularly analysed while calculating the equivalent HDR scheme. Result and discussion: When equivalent schemes are calculated in practise it is found that the HDR number of fractions depends highly on the LDR dose rate, that's why for one specific LDR scheme is necessary even to duplicate the HDR number of fractions to find the unique equivalent scheme when varying the dose rate from 0.5 Gy/h to 0.7 Gy/h. This also shows that the same LDR scheme using 0.5 Gy/h or 0.7 Gy/h is radiobiologically different (up to 20% in the late reacting tissue ERD). Conclusion: It is very important to report with great detail the LDR dose rate with which the gynaecological treatments have been performed because this variable is decisive to compare the results with other LDR or HDR schemes

A Journey to the Centre of Self: Positioning the Researcher in Autoethnography

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Jayne Pitard

2017-07-01

Full Text Available For a reader to trust the perspective of a researcher as presented in qualitative inquiry, the disclosure of the researcher's position in relation to the data is vital. Who am I in relation to the research? becomes the central tenet in disclosing the positioning of the researcher. I contend that what we know (ontology, and how we know it (epistemology, are a result of our philosophical beliefs developed through our lifelong learning and not a precursor to them. In seeking to understand my philosophical positioning when researching my teaching a group of professionals from Timor Leste, I have found it helpful to answer four questions. What do I believe underpins my knowledge of life? Where did I gain this belief? How does this belief influence the way I react to situations and people? How do the assumptions, which I have accumulated from my life experiences, affect my reflexivity in my research? This article describes the process that I have used to reveal my position in relation to the data using examples from my autoethnography.

Between two worlds medical student perceptions of humor and slang in the hospital setting.

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Parsons, G N; Kinsman, S B; Bosk, C L; Sankar, P; Ubel, P A

2001-08-01

Residents frequently use humor and slang at the expense of patients on the clinical wards. We studied how medical students react to and interpret the "appropriateness" of derogatory and cynical humor and slang in a clinical setting. Semistructured, in-depth interviews. Informal meeting spaces. Thirty-three medical students. Qualitative content analysis of interview transcriptions. Students' descriptions of the humorous stories and their responses reveal that students are able to take the perspective of both outsiders and insiders in the medical culture. Students' responses to these stories show that they can identify the outsider's perspective both by seeing themselves in the outsider's role and by identifying with patients. Students can also see the insider's perspective, in that they identify with residents' frustrations and disappointments and therefore try to explain why residents use this kind of humor. Their participation in the humor and slang--often with reservations--further reveals their ability to identify with the perspective of an insider. Medical students describe a number of conflicting reactions to hospital humor that may enhance and exacerbate tensions that are already an inevitable part of training for many students. This phenomenon requires greater attention by medical educators.

Self-Regulatory Climate: A Positive Attribute of Public Schools

Science.gov (United States)

Adams, Curt M.; Ware, Jordan K.; Miskell, Ryan C.; Forsyth, Patrick B.

2016-01-01

This study contributes to the development of a positive framework for effective public schools in 2 ways. First, it advances the construct self-regulatory climate as consisting of 3 generative school norms--collective faculty trust in students, collective student trust in teachers, and student-perceived academic emphasis. The authors argue these…

Longitudinally Vibrating Elastic Rods with Locally and Non-Locally Reacting Viscous Dampers

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Şefaatdin Yüksel

2005-01-01

Full Text Available Eigencharacteristics of a longitudinally vibrating elastic rod with locally and non-locally reacting damping are analyzed. The rod is considered as a continuous system and complex eigenfrequencies are determined as solution of a characteristic equation. The variation of the damping ratios with respect to damper locations and damping coefficients for the first four eigenfrequencies are obtained. It is shown that at any mode of locally or non-locally damped elastic rod, the variation of damping ratio with damper location is linearly proportional to absolute value of the mode shape of undamped system. It is seen that the increasing damping coefficient does not always increase the damping ratio and there are optimal values for the damping ratio. Optimal values for external damping coefficients of viscous dampers and locations of the dampers are presented.

Faculty and student perceptions of the feasibility of individual student-faculty meetings

NARCIS (Netherlands)

Mulder, B.F.; Erich, M.H.; Borleffs, J.C.; Elgersma, A.F.; Cohen-Schotanus, J.

2012-01-01

The extent to which students feel involved in their education positively influences academic achievement. Individual student-faculty meetings can foster student involvement. To be effective, faculty acknowledgement of the benefit of these meetings is a prerequisite. The aim of this study was to

Serum and plasma fibronectin binds to complement reacted immune complexes primarily via Clq

DEFF Research Database (Denmark)

Baatrup, G; Svehag, S E

1986-01-01

The binding of fibronectin to human Clq, C3b, and complement-reacted immune complexes (IC) was investigated by enzyme-linked immunosorbent assays. Microplates were coated with BSA followed by incubation with rabbit-anti-BSA IgG or F(ab')2 fragments of rabbit anti-BSA. Incubation of the solid phase...... with serum at 37 degrees C caused attachment of Clq and C3b. Addition of EDTA to the serum inhibited the binding of C3b, but not Clq, whereas substitution of the anti-BSA IgG on the solid phase with the F(ab')2 fragments abrogated the Clq, but not the C3b binding. Fibronectin binding was observed after...

Differences in Learning Characteristics Between Students With High, Average, and Low Levels of Academic Procrastination: Students' Views on Factors Influencing Their Learning.

Science.gov (United States)

Visser, Lennart; Korthagen, Fred A J; Schoonenboom, Judith

2018-01-01

Within the field of procrastination, much research has been conducted on factors that have an influence on academic procrastination. Less is known about how such factors may differ for various students. In addition, not much is known about differences in the process of how factors influence students' learning and what creates differences in procrastination behavior between students with different levels of academic procrastination. In this study learning characteristics and the self-regulation behavior of three groups of students with different levels of academic procrastination were compared. The rationale behind this was that certain learning characteristics and self-regulation behaviors may play out differently in students with different levels of academic procrastination. Participants were first-year students ( N = 22) with different levels of academic procrastination enrolled in an elementary teacher education program. The selection of the participants into three groups of students (low procrastination, n = 8; average procrastination, n = 8; high procrastination, n = 6) was based on their scores on a questionnaire measuring the students' levels of academic procrastination. From semi-structured interviews, six themes emerged that describe how students in the three groups deal with factors that influence the students' learning: degree program choice, getting started with study activities, engagement in study activities, ways of reacting to failure, view of oneself, and study results. This study shows the importance of looking at differences in how students deal with certain factors possibly negatively influencing their learning. Within the group of students with average and high levels of academic procrastination, factors influencing their learning are regularly present. These factors lead to procrastination behavior among students with high levels of academic procrastination, but this seems not the case among students with an average level of academic

A Comparison of First and Third Position Approaches to Violin Instruction

Science.gov (United States)

Cowden, Robert L.

1972-01-01

Purpose of this study was to determine by means of a performance scale whether there would be a significant difference between the intonational and rhythmic achievement of fourth-grade students who began violin study in the first position and fourth-grade students who began in the third position. (Author/CB)

Advising as Servant Leadership: Investigating Student Satisfaction

Science.gov (United States)

Paul, W. Kohle; Fitzpatrick, Colleen

2015-01-01

Student satisfaction with advising is positively linked to first-year student retention and sophomore persistence to their senior year. However, inconsistencies in the advising literature confound conclusions about the most effective advising approach to elicit student satisfaction. Positive links between the servant leadership approach and…

Athletes as Students: Ensuring Positive Cognitive and Affective Outcomes

Science.gov (United States)

Gayles, Joy Gaston; Hu, Shouping

2009-01-01

Over the past decade, the National Collegiate Athletic Association (NCAA) has become increasingly concerned about the educational experience of student athletes, beyond enforcement of eligibility rules and regulations. Perhaps this growing interest is in response to public criticism of the poor performance--and even misconduct--associated with the…

Classroom Management and Students' Self-Esteem: Creating Positive Classrooms

Science.gov (United States)

Demirdag, Seyithan

2015-01-01

Middle school students experience substantial changes in their emotion and cognition while they grow. They have mixed feelings, which may negatively affect their motivation, self-esteem, and academic success due to different classroom management strategies of their teachers. There is available research about motivation of middle school students…

Examining the Effects of Self-Reported Posttraumatic Stress Disorder Symptoms and Positive Relations with Others on Self-Regulated Learning for Student Service Members/Veterans

Science.gov (United States)

Ness, Bryan M.; Middleton, Michael J.; Hildebrandt, Michael J.

2015-01-01

Objectives: To examine the relationships between self-reported posttraumatic stress disorder (PTSD) symptoms, perceived positive relations with others, self-regulation strategy use, and academic motivation among student service members/veterans (SSM/V) enrolled in postsecondary education. Participants: SSM/V (N = 214), defined as veterans, active…

Comparative Analysis of Results from a Cognitive Emotion Regulation Questionnaire Between International Students from West Asia and Xinjiang College Students in China.

Science.gov (United States)

Hu, Hongxing; Alsron, Bahargul; Xu, Bin; Hao, Wei

2016-12-25

The Cognitive Emotion Regulation Questionnaire (CERQ) is a cognitive and emotional tool measuring how individuals deal with stressful life events. However differences exist in the results of CERQ among individuals. This study was conducted to investigate the CERQ results and depressive symptoms of students at our university (both local and international students) in order to provide further guidance for psychological interventions. 255 sophomore and junior international students (171 male and 84 female) and 262 sophomore and junior Chinese students (124 male and 138 female) were investigated using CERQ, ASLEC and SDS questionnaires. Results were analyzed using SPSS 16.0. Compared to Chinese students, international students more often used cognitive adjustment methods such as "positive refocusing","re-focus on planning" and "catastrophizing". In regression equations where depression symptoms were used as the dependent variable, "self-blaming" and "catastrophizing"positively contributed to depression symptoms in international students, while"acceptance" was negatively correlated with depression symptoms.In Chinese students, "life events score" and "catastrophizing"were positively correlated withdepression symptoms, while "positive re-evaluating" was negatively correlated with depression symptoms. Among students of different races, positive coping methods were negatively correlated with depression symptoms and could possibly prevent the occurrence of depression, while negative coping methods were positively correlated with depression.Encouraging students to use adaptive coping methods during psychological intervention is an effective way to adjust cognitions and behavior for depression prevention.

Gender Differences in Positive Social-Emotional Functioning

Science.gov (United States)

Romer, Natalie; Ravitch, N. Kathryn; Tom, Karalyn; Merrell, Kenneth W.; Wesley, Katherine L.

2011-01-01

We investigated gender differences of children and adolescents on positive social and emotional competencies using a new strength-based measure of positive social-emotional attributes and resilience--the Social-Emotional Assets and Resilience Scales (SEARS) cross-informant system. Caregivers, teachers, and students in grades kindergarten through…

Process and Positive Development: An Interpretative Phenomenological Analysis of University Student Volunteering

Science.gov (United States)

MacNeela, Pádraig; Gannon, Niall

2014-01-01

Volunteering among university students is an important expression of civic engagement, but the impact of this experience on the development of emerging adults requires further contextualization. Adopting interpretative phenomenological analysis as a qualitative research approach, we carried out semistructured interviews with 10 students of one…

A Two-Temperature Open-Source CFD Model for Hypersonic Reacting Flows, Part One: Zero-Dimensional Analysis

OpenAIRE

Vincent Casseau; Rodrigo C. Palharini; Thomas J. Scanlon; Richard E. Brown

2016-01-01

A two-temperature CFD (computational fluid dynamics) solver is a prerequisite to any spacecraft re-entry numerical study that aims at producing results with a satisfactory level of accuracy within realistic timescales. In this respect, a new two-temperature CFD solver, hy2Foam, has been developed within the framework of the open-source CFD platform OpenFOAM for the prediction of hypersonic reacting flows. This solver makes the distinct juncture between the trans-rotational and multiple vibrat...

Learning through service: student perceptions on volunteering at interprofessional hepatitis B student-run clinics.

Science.gov (United States)

Sheu, Leslie C; Zheng, Patricia; Coelho, Anabelle D; Lin, Lisa D; O'Sullivan, Patricia S; O'Brien, Bridget C; Yu, Albert Y; Lai, Cindy J

2011-06-01

Student-run clinics (SRCs) are widespread, but studies on their educational impact are limited. We surveyed preclinical medical, nursing, and pharmacy students about their experiences in a hepatitis B elective which provided opportunities to they could volunteer at hepatitis B screening and vaccination SRCs. Student responses revealed positive perceptions of the volunteer experience. Benefits included interacting with patients, developing clinical skills, providing service to disadvantaged populations, and collaborating with health professional peers. Students who participated in clinic reported enhanced skills compared to those who did not attend. SRCs play a valuable role in instilling positive attitudes and improving skills.

Happy classes make happy students: Classmates' well-being predicts individual student well-being.

Science.gov (United States)

King, Ronnel B; Datu, Jesus Alfonso

2017-12-01

Student well-being has mostly been studied as an individual phenomenon with little research investigating how the well-being of one's classmates could influence a student's well-being. The aim of the current study was to examine how the aggregate well-being of students who comprise a class could predict students' subsequent well-being (Time 2 well-being) after controlling for the effects of prior well-being (Time 1 well-being) as well as key demographic variables such as gender and age. Two studies among Filipino secondary school students were conducted. In Study 1, 788 students from 21 classes participated; in Study 2, 404 students from 10 classes participated. For Study 1, questionnaires assessing students' life satisfaction, positive affect and negative affect were administered twice seven months apart. For Study 2, the well-being questionnaires were administered twice, three months apart. Hierarchical linear modeling was used with level 1 (Time 1 individual well-being, gender, and age) and level 2 (class well-being) predictors. Results across the two studies provided converging lines of evidence: students who were in classes with higher levels of life satisfaction and positive affect were also more likely to have higher life satisfaction and positive affect at Time 2. The study indicated that the well-being of a student partly depends on the well-being of their classmates providing evidence for the social contagion of well-being in the classroom context. Copyright © 2017 Society for the Study of School Psychology. Published by Elsevier Ltd. All rights reserved.

Position in Educational Activity and Empathy Ability in Adolescence and Teenage Years

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Klimenkova E.N.

2017-11-01

Full Text Available The article is devoted to the study of the relationship between empathy and learning activity position in adolescence and young. We present the results of empirical research of 78 assisting professions students (psychologists and teachers and 42 Polytechnic College students with the techniques of studying empathic abilities (questionnaire of the Interpersonal Reactivity Index of M. Davis in the adaptation of TD Karyagina, projective technique "Consolation Strategies" Vasiluk and EV Sheryagina, processing in the modification of AB Kholmogorova, and the the subject position (the questionnaire "Subject Position in studying activity" by Yu.V. Zaretsky and V.K. Zaretsky. Students less likely to use emotional support, the objective position is more clearly expressed and less subjective in relation to learning activity. Subjects with a subjective learning activity position have stronger empathy, perspective taking and the ability to provide support. Subjects with a subject position often use emotional support.

Identified Phases in the Building and Maintaining of Positive Teacher-Student Relationships

Science.gov (United States)

Newberry, Melissa

2010-01-01

Teacher-student relationships are accepted as influential but the dynamics of those relationships are not well understood, especially with difficult students. A series of interviews were combined with classroom observations and written reflections to understand in what ways a teacher negotiated her relationship with a behaviorally challenging…

Enhancing Students' Self-Efficacy in Making Positive Career Decisions

Science.gov (United States)

Reddan, Gregory

2015-01-01

Field Project A is an elective course in the Bachelor of Exercise Science program at Griffith University and includes elements of both career development learning and work-integrated learning. This paper aims to determine the effects of the learning activities and assessment items developed for the course on students' self-efficacy in making…

Positive attitudinal shifts with the Physics by Inquiry curriculum across multiple implementations

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Beth A. Lindsey

2012-01-01

Full Text Available Recent publications have documented positive attitudinal shifts on the Colorado Learning Attitudes about Science Survey (CLASS among students enrolled in courses with an explicit epistemological focus. We now report positive attitudinal shifts in classes using the Physics by Inquiry (PbI curriculum, which has only an implicit focus on student epistemologies and nature of science issues. These positive shifts have occurred in several different implementations of the curriculum, across multiple institutions and multiple semesters. In many classes, students experienced significant attitudinal shifts in the problem-solving categories of the CLASS, despite the conceptual focus of most PbI courses.

Bully Prevention in Positive Behavior Support

OpenAIRE

Ross, Scott W.; Horner, R. H.

2009-01-01

Bullying behaviors are a growing concern in U.S. schools. We present here a behavioral approach to bully prevention utilizing a schoolwide intervention. Bully prevention in positive behavior support (BP-PBS) teaches students to withhold the social rewards hypothesized to maintain bullying. A single-subject multiple baseline design across 6 students and three elementary schools was implemented in an empirical evaluation of the intervention's effectiveness. Results indicated that implementation...

Students Engaged in Teaching

Science.gov (United States)

Ford, Channing R.; Wilkins, Emily B.; Groccia, James E.

2018-01-01

The role of peer teaching has long been established in academia as a means to foster student engagement in the classroom, increase student learning, and as a way to reduce faculty workload. This chapter highlights the direct and powerful positive impacts of engaging students as teachers upon the student providing the instruction, those receiving…

The positive impact of interprofessional education: a controlled trial to evaluate a programme for health professional students.

Science.gov (United States)

Darlow, Ben; Coleman, Karen; McKinlay, Eileen; Donovan, Sarah; Beckingsale, Louise; Gray, Ben; Neser, Hazel; Perry, Meredith; Stanley, James; Pullon, Sue

2015-06-04

Collaborative interprofessional practice is an important means of providing effective care to people with complex health problems. Interprofessional education (IPE) is assumed to enhance interprofessional practice despite challenges to demonstrate its efficacy. This study evaluated whether an IPE programme changed students' attitudes to interprofessional teams and interprofessional learning, students' self-reported effectiveness as a team member, and students' perceived ability to manage long-term conditions. A prospective controlled trial evaluated an eleven-hour IPE programme focused on long-term conditions' management. Pre-registration students from the disciplines of dietetics (n = 9), medicine (n = 36), physiotherapy (n = 12), and radiation therapy (n = 26) were allocated to either an intervention group (n = 41) who received the IPE program or a control group (n = 42) who continued with their usual discipline specific curriculum. Outcome measures were the Attitudes Toward Health Care Teams Scale (ATHCTS), Readiness for Interprofessional Learning Scale (RIPLS), the Team Skills Scale (TSS), and the Long-Term Condition Management Scale (LTCMS). Analysis of covariance compared mean post-intervention scale scores adjusted for baseline scores. Mean post-intervention attitude scores (all on a five-point scale) were significantly higher in the intervention group than the control group for all scales. The mean difference for the ATHCTS was 0.17 (95 %CI 0.05 to 0.30; p = 0.006), for the RIPLS was 0.30 (95 %CI 0.16 to 0.43; p < 0.001), for the TSS was 0.71 (95 %CI 0.49 to 0.92; p < 0.001), and for the LTCMS was 0.75 (95 %CI 0.56 to 0.94; p < 0.001). The mean effect of the intervention was similar for students from the two larger disciplinary sub-groups of medicine and radiation therapy. An eleven-hour IPE programme resulted in improved attitudes towards interprofessional teams and interprofessional learning, as well as self

Development of Moral Judgment according to Kohlberg as an Academic Performance Determining Factor in Social Sciences for a Group of Secondary Education Students

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José Díaz-Serrano

2015-09-01

Full Text Available This study aims at defining the relation between the students’ moral development level and their academic performance in the subject of Social Sciences-Geography, with the participation of twelve students enrolled in the third year of compulsory secondary education in school of Murcia, Spain. Kohlberg theorized the moral judgment development process in which people go through six stages, identifying in each one of them how we react when confronted with a moral dilemma; an instrument designed for this study, based on such theory, will allow us to know the stage of moral development of the participants. The results will reveal a tendency to a direct and positive relation, leading to the conclusion that it is interesting to examine the stage of moral judgment in the classroom. In addition, some educational and research recommendations are provided at the end of this paper.

Attitudes of early adolescent age students towards physical education

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Lazarević Dušanka

2015-01-01

Full Text Available Studies have shown that a positive attitude towards physical education (PE is in connection with students' engagement in PE classes and with the development of an active lifestyle. The objective of this study was to examine attitudes of early adolescent age students towards physical education, as well as to examine whether such attitudes vary with regard to gender, grade they attend and students' engagement in sport and physical exercises in extracurricular activities. The research was conducted on the sample of 531 students from 6th to 8th grade. The instrument Student's Attitudes toward Physical Education - SATPE was used to measure student's attitude towards PE. A special questionnaire was used to collect data on gender, grade and engagement in sport and physical exercising outside school. The results have shown that students have positive attitudes of moderate intensity towards physical education. MANOVA has shown that male students have more positive attitudes than female students, as well as that positivity of attitudes declines with age. Likewise, it was shown that students with more positive attitudes towards PE are more often engaged in physical exercises outside school. The connection between the attitude towards PE and involvement in organized sport was not confirmed. The paper presents suggestions for further research of students' attitude towards PE and its connection with physical activity of students.

Quality of Parental Support and Students' Emotions during Homework: Moderating Effects of Students' Motivational Orientations

Science.gov (United States)

Knollmann, Martin; Wild, Elke

2007-01-01

Two studies investigated the relationship between parental support, students' motivational orientations, and students' emotions during homework. It was assumed that intrinsically motivated students would feel better when parents provided much learning autonomy, while extrinsically motivated students would experience more positive affect when…

ACHIEVEMENT MOTIVATION OF SECONDARY SCHOOL STUDENTS IN RELATION TO THEIR SOCIAL POSITION IN THE CLASS

Directory of Open Access Journals (Sweden)

Ivana Poledňová

2014-04-01

Full Text Available The study was based on a theoretical presumption that social climate and relationships in the class can be in specific ways connected with students’ achievement motivation. Previous research in the area of student motivation was mostly based on self-reports and was therefore focused on explicit motives, i.e. personal goals which the respondents strived for. Self-report measures of motivation, however, can be affected by biases and misperceptions of one’s own self. Our study approached achievement motivation at its implicit, i.e. non-conscious level. It was conducted with students in five classes of a secondary school, N = 138, 107 female and 31 male, with an average age of 17 years. The respondents were administered a sociometric questionnaire and the projective Thematic Apperception Test (TAT in McClelland´s adaptation using Heckhausen´s content-analytical clue for the measurement of achievement motivation. The hypothesized relation between social position in class and achievement motivation was only partly supported. Affiliation was unrelated to achievement motivation, even when analyzed for both achievement motives separately. We found a slight negative relationship between influence in the class and achievement motivation, especially with the motive to achieve success. These results, partly diverging from theoretical presumptions, can be explained in terms of specific features of the sample as well as a general methodological disparity in previous research, especially a lack of differentiation between implicit and explicit motives in the interpretation of the findings.

Widening access of black students into physiotherapy programmes in the South Africa

Directory of Open Access Journals (Sweden)

N. P. Mbambo

2004-01-01

Full Text Available Access to learning and the provision of equal opportunities for success and progression to the previously disadvantaged communities is addressed extensively in the Education White Paper 3. While historically white universities have invested some effort to diversify the racial composition of their students, physiotherapy departments at these universities do not reflect a change in student demographics. The purpose of this article is to address the concept of widening access into physiotherapy education within the  context of transformation in higher education. The article examines the history of education in the past dispensation, the policies that have been put in place to redress the educational inequalities caused by the past dispensation and makes suggestions as to how universities can react to them. The literature that has examined the relationship between entry requirements and the success of students within the chosen profession is also outlined.  The article concludes with recommendations for a way forward for physiotherapy in addressing some of the issues related to student selection.

Access, entry and researcher-participant position

DEFF Research Database (Denmark)

Louw, Arnt Vestergaard

2015-01-01

This article reports on methodological experiences obtained in an anthropologically inspired qualitative study among students of carpentry in Denmark. On the one hand the article deals with methodological issues of doing anthropological research among students of carpentry, while on the other...... it deals with the research findings that such a research design produced. As well as the methodological issues of researcher access, entry and participant position in the field, this article reports on the following questions: What kinds of implicit expectations of the students are embedded in the way...... the school introduces and initiates the programme? What kinds of effects does this have on the motivation of the students? How do the terms and professional language of the profession work on the individual students in including and excluding ways? These specific descriptions of classroom pedagogy, inspired...

Promoting Self-Esteem in a Caring Positive Classroom.

Science.gov (United States)

Hodges, Linda; Wolf, Carolyn J.

Noting that low self-esteem negatively affects student achievement, this action research project implemented and evaluated a program for increasing student self-esteem through a caring and positive classroom environment incorporating cooperative learning and the use of praise and rewards. The targeted population consisted of fifth grade physical…

ENVIRONMENT: a computational platform to stochastically simulate reacting and self-reproducing lipid compartments

Science.gov (United States)

Mavelli, Fabio; Ruiz-Mirazo, Kepa

2010-09-01

'ENVIRONMENT' is a computational platform that has been developed in the last few years with the aim to simulate stochastically the dynamics and stability of chemically reacting protocellular systems. Here we present and describe some of its main features, showing how the stochastic kinetics approach can be applied to study the time evolution of reaction networks in heterogeneous conditions, particularly when supramolecular lipid structures (micelles, vesicles, etc) coexist with aqueous domains. These conditions are of special relevance to understand the origins of cellular, self-reproducing compartments, in the context of prebiotic chemistry and evolution. We contrast our simulation results with real lab experiments, with the aim to bring together theoretical and experimental research on protocell and minimal artificial cell systems.

Increasing positive attitudes toward individuals with disabilities through community service learning.

Science.gov (United States)

Lawson, Janelle E; Cruz, Rebecca A; Knollman, Gregory A

2017-10-01

Providing equal-status contact between those with and without disabilities can improve attitudes and reduce discrimination toward individuals with disabilities. This study investigated community service learning as a means by which to provide college students with equal-status contact with individuals with disabilities and increase their positive attitudes toward those with disabilities. A total of 166 college students in one university in the United States enrolled in an Introduction to Disability course received content on disability in society and participated in community service involving 20h of direct contact with individuals with disabilities. Findings indicated that college students who had prior contact with individuals with disabilities had more positive attitudes toward individuals with disabilities than college students who did not have prior contact at the start of the course. For the college students who did not have any prior contact, their attitudes toward individuals with disabilities became significantly more positive at the end of the community service learning course. Implications and suggestions for future research are discussed. Copyright © 2017 Elsevier Ltd. All rights reserved.

Positivity-preserving dual time stepping schemes for gas dynamics

Science.gov (United States)

Parent, Bernard

2018-05-01

A new approach at discretizing the temporal derivative of the Euler equations is here presented which can be used with dual time stepping. The temporal discretization stencil is derived along the lines of the Cauchy-Kowalevski procedure resulting in cross differences in spacetime but with some novel modifications which ensure the positivity of the discretization coefficients. It is then shown that the so-obtained spacetime cross differences result in changes to the wave speeds and can thus be incorporated within Roe or Steger-Warming schemes (with and without reconstruction-evolution) simply by altering the eigenvalues. The proposed approach is advantaged over alternatives in that it is positivity-preserving for the Euler equations. Further, it yields monotone solutions near discontinuities while exhibiting a truncation error in smooth regions less than the one of the second- or third-order accurate backward-difference-formula (BDF) for either small or large time steps. The high resolution and positivity preservation of the proposed discretization stencils are independent of the convergence acceleration technique which can be set to multigrid, preconditioning, Jacobian-free Newton-Krylov, block-implicit, etc. Thus, the current paper also offers the first implicit integration of the time-accurate Euler equations that is positivity-preserving in the strict sense (that is, the density and temperature are guaranteed to remain positive). This is in contrast to all previous positivity-preserving implicit methods which only guaranteed the positivity of the density, not of the temperature or pressure. Several stringent reacting and inert test cases confirm the positivity-preserving property of the proposed method as well as its higher resolution and higher computational efficiency over other second-order and third-order implicit temporal discretization strategies.

Positive Psychology Course and Its Relationship to Well-Being, Depression, and Stress

Science.gov (United States)

Goodmon, Leilani B.; Middleditch, Ashlea M.; Childs, Bethany; Pietrasiuk, Stacey E.

2016-01-01

The purpose of this study was to determine the influence of a positive psychology course on student well-being, depressive symptoms, and stress in a repeated measure, nonequivalent control design. As hypothesized, the positive psychology students reported higher overall happiness, life satisfaction, routes to happiness, and lower depressive…

Activation of Students with Various Teaching Methods

DEFF Research Database (Denmark)

Andersen, Shuang Ma

2011-01-01

A group of teaching methodes to active engineer students have been tried out. The methodes are developed based on the Pedagogical Cyclic Workflow (PCW). Comparing with earlier evaluation, positive feedback is achieved among the students.......A group of teaching methodes to active engineer students have been tried out. The methodes are developed based on the Pedagogical Cyclic Workflow (PCW). Comparing with earlier evaluation, positive feedback is achieved among the students....

The Institution Image and Trust and Their Effect on the Positive Word of Mouth

Directory of Open Access Journals (Sweden)

Soni Harsono

2014-04-01

Full Text Available In marketing, it is important to see how competitive a university is. Among public universities (PTN and private universities (PTS, it shows a very competitive situation recently. To overcome this problem, it requires shaping up the institution image and trust for increasing the positive word of mouth among students. This study aims to determine the effect of the institution image, trust both partially and simultaneously on the positive word of mouth by the students of private universities in Surabaya with their accreditation levels of A, B and C. The sample consists of students from six colleges with accreditation ratings A, B, and C totaling 125 students. Accidental sampling technique was done using a sampling technique of multiple regression analysis with SPSS version 17. It shows, for the college with accreditation category C, the image of the institution both partially and simulta-neously has significant positive effect on the positive word of mouth. For the college accreditation category B, the image of the institution and trust simultaneously has significant positive effect on the positive word of mouth and, finally, trust in accreditation category A has significant positive effect on the positive word of mouth and the institution image and trust simultaneously have significant positive effect on the positive word of mouth.

Literature Discussion as Positioning: Examining Positions in Dialogic Discussions in a Third-Grade Classroom

Science.gov (United States)

Wee, Jongsun

2010-01-01

The purpose of the study is to examine positions of students and a teacher in dialogic discussion. In this study, dialogic discussion was defined with Bakhtin's (1981) dialogism, Nystrand's (1997) explanation of dialogically organized instruction, and Mercer's (1995) explanation of Exploratory Talk. Studies about literature discussion in…

"How Do We Start? And How Will They React?" Disclosing to Young People with Perinatally Acquired HIV in Uganda.

Science.gov (United States)

Namukwaya, Stella; Paparini, Sara; Seeley, Janet; Bernays, Sarah

2017-01-01

Despite great advances in pediatric HIV care, rates and the extent of full disclosure of HIV status to infected children remain low especially in resource-constrained setting. The World Health Organisation recommends that, by the age of 10-12 years old, children should be made fully aware of their HIV-positive status. However, this awareness is often delayed until much later in their adolescence. Few studies have been conducted to investigate what influences caregivers' decision-making process in this regard in low-income settings. In this article, we present an analysis of care dyads of caregivers and HIV-positive young people in Kampala, Uganda, as part of the findings of a longitudinal qualitative study about young people's adherence to antiretroviral therapy embedded in an international clinical trial (BREATHER). Repeat in-depth interviews were conducted with 26 young people living with HIV throughout the course of the trial, and once-off interviews with 16 of their caregivers were also carried out toward the end of the trial. In this article, we examine why and how caregivers decide to disclose a young person's HIV status to them and explore their feelings and dilemmas toward disclosure, as well as how young people reacted and the influence it had on their relationships with and attitudes toward their caregivers. Caregivers feared the consequences of disclosing the young person's positive status to them and disclosure commonly occurred hurriedly in response to a crisis, rather than as part of an anticipated and planned process. A key impediment to disclosure was that caregivers feared that disclosing would damage their relationships with the young people and commonly used this as a reason to continue to postpone disclosure. However, young people did not report prolonged feelings of blame or anger toward their caregivers about their own infection, but they did express frustration at the delay and obfuscation surrounding the disclosure process. Our findings

Factors affecting assertiveness among student nurses.

Science.gov (United States)

Ibrahim, Sanaa Abd El Azim

2011-05-01

This study aimed to investigate the factors affecting assertiveness among student nurses. The study was carried out at Faculty of Nursing, Port-Said University, on 207 student nurses from four different grades. Rathus Assertiveness Schedule, consisted of 30 items, was used to measure the students' assertiveness level and a 12-item scale developed by Spreitzer was used to measure students' psychological empowerment. The study results showed that 60.4% of the students were assertive, while about half of the students were empowered. A positive relation between student assertiveness and psychological empowerment was detected. Moreover, positive relations regarding family income and students' assertiveness and psychological empowerment were determined. The study recommended introduction of specific courses aiming at enhancing the acquisition of assertiveness skills, in addition, nurse educators must motivate their students to express their opinion and personal rights and also they must pay attention for students' empowerment and enhance students' autonomy. Copyright © 2010 Elsevier Ltd. All rights reserved.

Potential performance improvement using a reacting gas (nitrogin tetroxide) as the working fluid in a closed Brayton cycle

Science.gov (United States)

Stochl, R. J.

1979-01-01

The results of an analysis to estimate the performance that could be obtained by using a chemically reacting gas (nitrogen tetroxide) as the working fluid in a closed Brayton cycle are presented. Compared with data for helium as the working fluid, these results indicate efficiency improvements from 4 to 90 percent, depending on turbine inlet temperature, pressures, and gas residence time in heat transfer equipment.

STUDENTS POSITIVE RESPONSE THROUGH THINK PAIR SHARE STRATEGY ON ENGLISH SPEAKING SKILLS

Directory of Open Access Journals (Sweden)

Iin Baroroh Ma’arif

2017-12-01

Full Text Available Harmonious communication has an important role in teaching and learning process, especially in encouraging the success of teaching and learning process in the classroom. This research was conducted to know the student's response to the implementation of Think Pair Share strategy in Speaking course. This strategy emphasizes how students are more active in communicating using English in the classroom. The purpose of this research is 1 how the implementation of Think Pair Share strategy in class; 2 how students respond to the Think Pair Share strategy in the classroom; The design of this study is descriptive-qualitative to answer these questions. In this study, researchers themselves are the main instrument. In collecting data, researchers used observation sheets, and field notes.

Perceived parenting, school climate and positive youth development ...

African Journals Online (AJOL)

For this purpose, 400 female high school students of Kerman responded to the scale of parenting style perception, school climate perception, and positive youth development. The results of correlation analysis indicated a positive and significant correlation between school climate dimensions (teacher support, autonomy ...

Experiences matter: Positive emotions facilitate intrinsic motivation

OpenAIRE

Løvoll, Helga Synnevåg; Røysamb, Espen; Vittersø, Joar

2017-01-01

https://doi.org/10.1080/23311908.2017.1340083 This paper has two major aims. First, to investigate how positive emotions and intrinsic motivation affect each other over time. Second, to test the effect of positive emotions and intrinsic motivation on subsequent educational choices. Through two ordinary study semesters, 64 sport students in Norway reported on their intrinsic motivation for outdoor activities (twice) as well as positive emotions after two three-day outdoor e...

Commentary: Positive Youth Development Goes Mainstream.

Science.gov (United States)

Moore, Kristin A

2017-07-01

Evidence has accumulated that confirms the success of a positive youth development (PYD) approach. Importantly, a positive development approach is just that-an approach. It is not a particular program or curriculum but a set of practices designed to achieve one or more positive outcomes. As such, PYD practices can be added onto other programs to make positive outcomes more likely. For example, a tutoring program can work hard to hire and train staff to work with students in a trusting, respectful relationship. Camp counselors can be encouraged to build rapport and positive bonds among the campers. © 2017 The Author. Child Development © 2017 Society for Research in Child Development, Inc.

peer interactions and positive student-lecturer relationship as a tool

African Journals Online (AJOL)

Frederick Iraki

USIU College Algebra is part of general education that is studied by all students and its normally taken for one ... challenges in the learning and teaching of College algebra and in broad sense mathematics at university .... Keeps low profile.

Positive Exchange of Flight Controls Program

Science.gov (United States)

1995-03-10

This advisory circular provides guidance for all pilots, especially student pilots, flight instructors, and pilot examiners, on the recommended procedure to use for the positive exchange of flight controls between pilots when operating an aircraft.

Investigation of Na-CO2 Reaction with Initial Reaction in Various Reacting Surface

International Nuclear Information System (INIS)

Kim, Hyun Su; Park, Gunyeop; Kim, Soo Jae; Park, Hyun Sun; Kim, Moo Hwan; Wi, Myung-Hwan

2015-01-01

The reaction products that cause oxidation and erosion are threaten the heat transfer tubes so that it is necessary to investigate Na-CO 2 reaction according to various experimental parameter. Unlike SWR, Na-CO 2 reaction is more complex to deal with reaction kinetics. Since a comprehensive understanding of Na-CO 2 reaction mechanism is crucial for the safety analysis, the reaction phenomenon under the various conditions was investigated. The current issue is to make a database for developing computational code for CO 2 gas leak situation because it is experimentally difficult to analyze the actual accident situation. Most studies on Na-CO 2 interaction reports that chemical reaction is getting vigorous as temperature increased and reactivity is sensitive as temperature change between 400 .deg. C and 600 .deg. C. Therefore, temperature range is determined based on the operating condition (450 - 500 .deg. C) of KALIMER-600 employed as supercritical CO 2 brayton cycle energy conversion system for Na-CO 2 heat exchanger. And next parameter is sodium surface area which contact between sodium and CO 2 when CO 2 is injected into sodium pool in the accident situation. So, the fundamental surface reaction is experimentally studied in the range of 8 - 12cm 2 . Additionally, it has been reported in recent years that CO 2 Flow rate affects reactivity less significantly and CO 2 flow rate is assumed that 5 SLPM (standard liter per minute) is suitable as a basis for a small leakage. The finally selected control parameters is sodium temperature and reacting surface area with constant CO 2 flow rate. Na-CO 2 reaction test is performed for investigating risk of potential accident which contacts with liquid sodium and CO 2 . Amount of reaction is saturated as time passed because of kept a balance between production of solid phase reaction products and amount of diffusivity. These results contribute to make a database for the SFR safety analysis and additional experiments are needed

Education for a positive self-image in a contemporary school

Directory of Open Access Journals (Sweden)

SANJA SIMEL

2013-09-01

Full Text Available In today's world characterized by changed systems of values and materialism, pedagogy should emphasize education for a positive self-image, especially in the contemporary school, whose educational goals are freedom, independence and individuality. This theoretical analysis provides a review of research on the importance and relationship of a positive self-image with other factors, such as social skills and academic achievement. Simultaneously, the methods and procedures by which teachers can foster a student's positive self-image are displayed. Although the degree of positive self-thinking is for the most part formed in interaction with other people, it is extremely important to raise students' awareness about their own internal strengths as well as their possibility of choice. The education of a positive self-image can be considered a part of "positive pedagogy" or "positive education" which focuses on traditional skills and happiness, but also joy - fervor that accompanies being (Fromm, 2004, p. 130.

Determining the Relationship between Carrying School bags and Busculo skeletal Pains in 12-15 year old students

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zahra Zamanian

2014-12-01

Full Text Available Background & aim: An increase in weight of school bags may lead to changes in body position. To compensate this stress, the musculoskeletal system must react appropriately. The purpose of the present study was to compare the prevalence of musculoskeletal pain among children and identify the risk factors for musculoskeletal disorders. Methods: The present cross-sectional study was conducted on 800 secondary school children, aged 12 to 15 years, selected by cluster random sampling in four areas of Shiraz, Iran. The researcher instrument consisted of a questionnaire and body map for evaluating musculoskeletal pains. Data were analyzed using Kruskal-Wallis and Mann-Whitney test. Results: The results revealed that 80.6% of the students had pain correlation with carrying the school bags. 40.8% experienced pain while carrying their school bags, 27.2% expressed continuous pain and 32% of them felt pain whenever they put off their bags. Conclusion: According to the prevalence of musculoskeletal pain, the prevalence of pain in the shoulders had the highest rate which was similar to the results of several studies.

Empowering Students in Transition

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Ann-Catherine Sullivan

2016-09-01

Full Text Available The purpose of this study was to (a identify potential benefits for students with disabilities taking part in a physical activity program with same-age typical peers on a Midwest university campus, and (b to determine if the program impacted the students with disabilities empowerment. Empowerment theory was used to determine how transition students’ attitudes change over the course of the semester while participating in a workout buddy program with same-age college peers. The program was structured to provide a sense of empowerment to students to make their own decisions and learn for themselves so they don’t feel a lack of power in their lives. This study implemented elements of a quantitative design but a majority utilized a qualitative design based on the assumptions of the Interpretivist paradigm. The quantitative design elements focused on the analysis of two questionnaires: Sports Questionnaire; and The Perceived Control Scale Questionnaire. The analysis of the focus group data revealed the following themes as positive effects of the intervention; positive effect on empowerment, how happy the program made the students, what benefits the students gained from the program, the student’s familiarity with university students, and the environment and lastly the students ability to ask for assistance when need. Findings from the study determined that the empowerment of the students with disabilities was impacted while participating in the program. In general, the findings of gaining empowerment were similar to previous studies in that students with disabilities are able to gain empowerment from participation in fitness and recreation programs. The researcher noted during focus groups that some of the BOBW students were not confident in starting conversations with their university. Although the BOBW students felt a sense of losing empowerment with this specific instance, there was an overall positive impact on the BOBW students�

Low-temperature deuteron irradiation of differently reacted Nb3Sn superconductors

International Nuclear Information System (INIS)

Maier, P.; Seibt, E.

1978-01-01

Irradiation measurements with 50 MeV deuterons at 18 K and subsequent annealing measurements were performed on Nb 3 Sn single and multifilamentary superconductors at the Helium-Bath Irradiation Facility of the Karlsruhe Cyclotron. The critical current densities jsub(c) of Nb 3 Sn bronze-reacted wire samples at various reaction temperatures (Tsub(R)=650,700,750,800 and 850 0 C) with equal layer thickness were measured for integral deuteron fluxes up to PHIsub(t)=0.7x10 18 cm -2 . After a decrease in jsub(c) of 85% at maximum dose a relatively small annealing effect (4 to 10%) was observed at ambient temperatures. The maximum value of the normalized critical current density, jsub(c)/jsub(c0), at PHIsub(t)approximately=10 17 cm -2 increases with increasing reaction temperature. The difference in volume pinning forces before and after irradiation increases less than linear (approximately√PHIsub(t)) with the irradiation dose. An almost linear dependence between the inverse grain diameter (dsub(K) -1 )) and volume pinning force is obtained both before and after irradiation. (Auth.)

"I'm worth more than that": trait positivity predicts increased rejection of unfair financial offers.

Science.gov (United States)

Dunn, Barnaby D; Makarova, Dasha; Evans, David; Clark, Luke

2010-12-08

Humans react strongly to unfairness, sometimes rejecting inequitable proposals even if this sacrifices personal financial gain. Here we explored whether emotional dispositions--trait tendencies to experience positive or negative feelings--shape the rejection of unfair financial offers. Participants played an Ultimatum Game, where the division of a sum of money is proposed and the player can accept or reject this offer. Individuals high in trait positivity and low in trait negativity rejected more unfair offers. These relationships could not be explained by existing accounts which argue that rejection behaviour results from a failure to regulate negative emotions, or serves to arbitrate social relationships and identity. Instead, the relationship between dispositional affect and rejection behaviour may be underpinned by perceived self worth, with those of a positive disposition believing that they are "worth more than that" and those of a negative disposition resigning themselves to "taking the crumbs from under the table".

Mediating Effects of Positive Thinking and Social Support on Suicide Resilience.

Science.gov (United States)

Matel-Anderson, Denise M; Bekhet, Abir K; Garnier-Villarreal, Mauricio

2018-02-01

Suicide has been the second leading cause of death for 18- to 24-year-olds in the United States since 2011. The stress experienced by undergraduate college students has the potential to increase one's risk for suicide. Resilience theory was used as a theoretical framework to examine the interplay between risk and protective factors. A cross-sectional and correlational design was used to assess the mediating effects of positive thinking and/or social support on suicide resilience in 131 college students 18 to 24 years old who completed an online survey. The study found an indirect effect of self-esteem on suicide resilience through positive thinking and social support indicating that as self-esteem increases, positive thinking and social support also increase, which leads to an increase in resilience. The study also found a direct effect of self-esteem, positive thinking, and social support on suicide resilience. The findings inform the development of tailored interventions to build suicide resilience in college students.

REACT-Mod: a mathematical model for transient calculation of chemical reactions with U-Pu-Np-Tc in the aqueous nitric acid solution

International Nuclear Information System (INIS)

Tachimori, Shoichi; Kitamura, Tatsuaki.

1996-10-01

A computer code REACT-Mod which simulates various chemical reactions in an aqueous nitric acid solution involving uranium, plutonium, neptunium, technetium etc. e.g., redox, radiolytic and disproportionation reactions of 68, was developed based on the kinetics model. The numerical solution method adopted in the code are two, a kinetics model totally based on the rate law of which differential equations are solved by the modified Porsing method, and a two-step model based on both the rate law and equilibrium law. Only the former treats 27 radiolytic reactions. The latter is beneficially used to have a quick and approximate result by economical computation. The present report aims not only to explain the concept, chemical reactions treated and characteristics of the model but also to provide details of the program for users of the REACT-Mod code. (author)

An Ergonomic Desk and Chair Prototype to Improve Seating Position on Senior High School Students at Kabupaten Gresik

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Neffrety Nilamsari

2015-04-01

chair N, length = 48 cm, wide = 43 cm, cushion base’s height from floor surfaces = 47 cm, bag keeper’s height from floor surfaces =3cm, bag keeper’s wide= 43 cm, bag keeper’s length = 47 cm, cushion’s wide = 41 cm, cushion’s length = 46cm, handrest’s height = 22 cm, handrest’s length = 30 cm, backrest’s height = 38 cm, backrest’s wide = 43 cm, cushion’s foam thickness = 4 cm, backrest’s foam thickness = 4 cm; 2 Prototype desk N, length = 50 cm, wide = 66 cm, back section’s height = 85 cm, front section’s height = 75 cm, footrest from fl oor surfaces = 10 cm, drawer’s height = 10cm, front bamper’s height = 40 cm, and table’s angle = 10o. Discussion: An ergonomic desks and chairs are very important for students at school, it will help teaching learning process run well and comfortable. The measurement of desk and chair must be reviewed after fi ve years, because of student’s anthropometric development. So then students will feel no fatigue. Keywords: ergonomy, senior high school student’s seating position

The Effects of Part-Time MBA Programs on Students: The Relationships between Students and Their Employers

Science.gov (United States)

Prince, Melvin; Burns, David J.; Manolis, Chris

2014-01-01

The authors explore how the relationship between part-time master of business administration (MBA) students and their employers changes as students proceed through their MBA program by examining the degree to which students are integrated into their employer organizations. Significant positive relationships observed between students' progress…

Greenness and school-wide test scores are not always positively associated – A replication of "linking student performance in Massachusetts elementary schools with the 'greenness' of school surroundings using remote sensing"

Science.gov (United States)

Matthew H.E.M. Browning; Ming Kuo; Sonya Sachdeva; Kangjae Lee; Lynne Westphal

2018-01-01

Recent studies find vegetation around schools correlates positively with student test scores. To test this relationship in schools with less green cover and more disadvantaged students, we replicated a leading study, using six years of NDVI-derived greenness data to predict school-level math and reading achievement in 404 Chicago public schools. A direct replication...

The Ether Wind and the Global Positioning System.

Science.gov (United States)

Muller, Rainer

2000-01-01

Explains how students can perform a refutation of the ether theory using information from the Global Positioning System (GPS). Discusses the functioning of the GPS, qualitatively describes how position determination would be affected by an ether wind, and illustrates the pertinent ideas with a simple quantitative model. (WRM)

Assessing medical students' perceptions of patient safety: the medical student safety attitudes and professionalism survey.

Science.gov (United States)

Liao, Joshua M; Etchegaray, Jason M; Williams, S Tyler; Berger, David H; Bell, Sigall K; Thomas, Eric J

2014-02-01

To develop and test the psychometric properties of a survey to measure students' perceptions about patient safety as observed on clinical rotations. In 2012, the authors surveyed 367 graduating fourth-year medical students at three U.S. MD-granting medical schools. They assessed the survey's reliability and construct and concurrent validity. They examined correlations between students' perceptions of organizational cultural factors, organizational patient safety measures, and students' intended safety behaviors. They also calculated percent positive scores for cultural factors. Two hundred twenty-eight students (62%) responded. Analyses identified five cultural factors (teamwork culture, safety culture, error disclosure culture, experiences with professionalism, and comfort expressing professional concerns) that had construct validity, concurrent validity, and good reliability (Cronbach alphas > 0.70). Across schools, percent positive scores for safety culture ranged from 28% (95% confidence interval [CI], 13%-43%) to 64% (30%-98%), while those for teamwork culture ranged from 47% (32%-62%) to 74% (66%-81%). They were low for error disclosure culture (range: 10% [0%-20%] to 27% [20%-35%]), experiences with professionalism (range: 7% [0%-15%] to 23% [16%-30%]), and comfort expressing professional concerns (range: 17% [5%-29%] to 38% [8%-69%]). Each cultural factor correlated positively with perceptions of overall patient safety as observed in clinical rotations (r = 0.37-0.69, P safety behavioral intent item. This study provided initial evidence for the survey's reliability and validity and illustrated its applicability for determining whether students' clinical experiences exemplify positive patient safety environments.

Field trips as an intervention to enhance pharmacy students' positive ...

African Journals Online (AJOL)

To determine whether students' experience of field trips influenced their perceptions regarding a management module as part of their training as future pharmacists. Methods. A mixed-method sequential exploratory research design was used. Data were gathered through written narratives and focus group interviews, ...

Use of the nonsteady monotonic heating method for complex determination of thermophysical properties of chemically reacting mixture in the case of non-equilibrium proceeding of the chemical reaction

International Nuclear Information System (INIS)

Serebryanyj, G.Z.

1984-01-01

Theoretical analysis is made for the monotonic heating method as applied for complex determination of thermophysical properties of chemically reacting gases. The possibility is shown of simultaneous determination of frozen and equilibrium heat capacity, frozen and equilibrium heat conduction provided non-equilibrium occuring of the reaction in the wide range of temperatures and pressures. The monotonic heating method can be used for complex determination of thermophysical properties of chemically reacting systems in case of non-equilibrium proceeding of the chemical reaction

Psychological Morbidity in Students of Medical College and Science and Art College Students - A Comparative Study

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Priyanka Mahawar

2011-07-01

Full Text Available Considering the importance of quality of life in medical students we have conducted a cross sectional & descriptive study on screening of mental illness of 60 medical students of prefinal year and comparing it with 60 students of third year of Science and Art College. Students were selected via random sampling. GHQ-12 was used as a screening tool and after obtaining scores students were graded in 3 categories - individuals screened positive for psychological morbidity were of Grades 2 and 3 and individuals screened negative for psychological morbidity were of Grade 1 and they were compared according to college, gender & residence. Students screened positive for psychological morbidity as per GHQ-12 were found higher in medical college (87% as compared to Science and Art College (45% and a statistically significant association was found between psychological morbidity and medical students. Psychological morbidity was not significantly associated with residence and gender.

Medical students' experience of and reaction to stress: the role of depression and anxiety.

Science.gov (United States)

Saravanan, Coumaravelou; Wilks, Ray

2014-01-01

Medical school is recognized as a stressful environment that often has a negative effect on students' academic performance, physical health, and psychosocial well-being. Previous studies have not identified differences between depressed and nondepressed and anxious and nonanxious medical students' experiences of stress or their reactions to stressors. The present study aimed to identify the prevalence of depression and anxiety among a sample of 358 medical students attending a private university in Malaysia and to examine differences according to participants' gender, year of study, and stage of training (preclinical and clinical). Additionally, this study examined the extent to which stress predicts depression and anxiety, differences between depressed and nondepressed medical students' experiences of and reactions to stressors, and differences between anxious and nonanxious medical students' experiences of and reactions to stressors. The Student Life Stress Inventory was used to measure stress and reaction to stressors and the Depression, Anxiety, and Stress Scale was used to measure depression and anxiety. The results showed that 44% (n = 158) of the students were anxious and 34.9% (n = 125) were depressed. More female students exhibited anxiety compared to male students. Stress is a predictor for depression and anxiety. A significant difference was found between depressed and nondepressed and anxious and nonanxious students' experience of stressors due to frustration, change, and their emotional reaction to stressors. Overall, depressed and anxious students were found to experience more stress and react differently to stressors compared to nondepressed and nonanxious students.

House dust mite (Der p 10) and crustacean allergic patients may react to food containing Yellow mealworm proteins.

Science.gov (United States)

Verhoeckx, Kitty C M; van Broekhoven, Sarah; den Hartog-Jager, Constance F; Gaspari, Marco; de Jong, Govardus A H; Wichers, Harry J; van Hoffen, Els; Houben, Geert F; Knulst, André C

2014-03-01

Due to the imminent growth of the world population, shortage of protein sources for human consumption will arise in the near future. Alternative and sustainable protein sources (e.g. insects) are being explored for the production of food and feed. In this project, the safety of Yellow mealworms (Tenebrio molitor L.) for human consumption was tested using approaches as advised by the European Food Safety Authority for allergenicity risk assessment. Different Yellow mealworm protein fractions were prepared, characterised, and tested for cross-reactivity using sera from patients with an inhalation or food allergy to biologically related species (House dust mite (HDM) and crustaceans) by immunoblotting and basophil activation. Furthermore, the stability was investigated using an in vitro pepsin digestion test. IgE from HDM- and crustacean allergic patients cross-reacted with Yellow mealworm proteins. This cross-reactivity was functional, as shown by the induction of basophil activation. The major cross-reactive proteins were identified as tropomyosin and arginine kinase, which are well known allergens in arthropods. These proteins were moderately stable in the pepsin stability test. Based on these cross-reactivity studies, there is a realistic possibility that HDM- and crustacean allergic patients may react to food containing Yellow mealworm proteins. Copyright © 2014 Elsevier Ltd. All rights reserved.

Global Cultural Capital and Global Positional Competition: International Graduate Students' Transnational Occupational Trajectories

Science.gov (United States)

Kim, Jongyoung

2016-01-01

International graduate students' occupational trajectories have rarely been studied, although many studies exist on their learning experiences in foreign universities. Based on 80 qualitative interviews, this article aims to understand how, where, and why these students obtain jobs in academe and corporations. I focus particularly on Korean…

Teaching pathology via online digital microscopy: positive learning outcomes for rurally based medical students.

Science.gov (United States)

Sivamalai, Sundram; Murthy, Shashidhar Venkatesh; Gupta, Tarun Sen; Woolley, Torres

2011-02-01

Technology has revolutionised teaching. Teaching pathology via digital microscopy (DM) is needed to overcome increasing student numbers, a shortage of pathology academics in regional medical schools, and difficulties with teaching students on rural clinical placement. To identify whether an online DM approach, combining digital pathology software, Web-based slides and classroom management software, delivers effective, practical pathology teaching sessions to medical students located both on campus and on rural placement. An online survey collected feedback from fourth and fifth year undergraduate James Cook University medical students on the importance of 16 listed benefits and challenges of using online DM to teach pathology, via a structured five-point Likert survey. Fifty-three students returned the survey (response rate = 33%). Benefits of online DM to teach pathology rated as 'very important' or 'extremely important' by over 50% of students included: higher quality images; faster learning; more convenient; better technology; everyone sees the same image; greater accessibility; helpful annotations on slides; cost savings; and more opportunity for self-paced learning out-of-hours and for collaborative learning in class. Challenges of online DM rated as 'very important' or 'extremely important' by over 50% of students included: Internet availability in more remote locations and potential problems using online technology during class. Nearly all medical students welcomed learning pathology via online digital technology. DM should improve the quantity, quality, cost and accessibility of pathology teaching by regional medical schools, and has significant implications for the growing emphasis in Australia for decentralised medical education and rural clinical placements. © 2011 The Authors. Australian Journal of Rural Health © National Rural Health Alliance Inc.

Student Attitudes towards Enterprise Education in Poland: A Positive Impact

Science.gov (United States)

Jones, Paul; Jones, Amanda; Packham, Gary; Miller, Christopher

2008-01-01

Purpose: This paper aims to appraise the delivery of an enterprise education course to a cohort of Polish students evaluating its impact in encouraging entrepreneurial activity. The Polish economy continues its expansion with adoption of free market economies post communism. To encourage this growth, entrepreneurial activity must be encouraged…

Using LectureTools to Enhance Student-Instructor Relations and Student Engagement in the Large Class

Science.gov (United States)

Shaw, Jerie; Kominko, Sofiya; Terrion, Jenepher Lennox

2015-01-01

Positive student-instructor relationships are important for student engagement, motivation, retention and achievement. Yet, as class sizes grow, these relationships can be increasingly difficult to develop. This study explores LectureTools--a web-based student response and learning platform that facilitates communication between instructors and…

Thermal-hydraulic characteristics of reacting zone for TWR bundles based on CFD method

International Nuclear Information System (INIS)

Lu Chuan; Yan Mingyu; Lu Jianchao

2013-01-01

Thermal-hydraulic characteristics of reacting zone for TWR (travelling wave reactor) bundles were analysed by CFD method. The calculation results of 7, 19 and 37 fuel pin bundles show the similar characteristics. The hot coolant seems to congregate into the centre as flowing to the downstream area. The high temperature coolant always distributes in the inner area while the temperature shows distinct gradation in the outer area. The temperature difference is more than 100 ℃ for the bundle whose diameter is about 26 cm. The major temperature gradations mainly locate in the outermost fuel rods of two circles while other circles show much smaller temperature gradients. This conclusion is estimated to be true for more fuel pin bundles such as 217 fuel pin bundles. The fuel assembly structure of the existing TWR design should be optimized in future. (authors)

Computational Investigation of Soot and Radiation in Turbulent Reacting Flows

Science.gov (United States)

Lalit, Harshad

This study delves into computational modeling of soot and infrared radiation for turbulent reacting flows, detailed understanding of both of which is paramount in the design of cleaner engines and pollution control. In the first part of the study, the concept of Stochastic Time and Space Series Analysis (STASS) as a numerical tool to compute time dependent statistics of radiation intensity is introduced for a turbulent premixed flame. In the absence of high fidelity codes for large eddy simulation or direct numerical simulation of turbulent flames, the utility of STASS for radiation imaging of reacting flows to understand the flame structure is assessed by generating images of infrared radiation in spectral bands dominated by radiation from gas phase carbon dioxide and water vapor using an assumed PDF method. The study elucidates the need for time dependent computation of radiation intensity for validation with experiments and the need for accounting for turbulence radiation interactions for correctly predicting radiation intensity and consequently the flame temperature and NOx in a reacting fluid flow. Comparison of single point statistics of infrared radiation intensity with measurements show that STASS can not only predict the flame structure but also estimate the dynamics of thermochemical scalars in the flame with reasonable accuracy. While a time series is used to generate realizations of thermochemical scalars in the first part of the study, in the second part, instantaneous realizations of resolved scale temperature, CO2 and H2O mole fractions and soot volume fractions are extracted from a large eddy simulation (LES) to carry out quantitative imaging of radiation intensity (QIRI) for a turbulent soot generating ethylene diffusion flame. A primary motivation of the study is to establish QIRI as a computational tool for validation of soot models, especially in the absence of conventional flow field and measured scalar data for sooting flames. Realizations of

Gender differences in stressors and reactions to stressors among Jordanian university students.

Science.gov (United States)

Hamaideh, Shaher H

2012-01-01

Stress among university students has been a topic of interest for researchers and teachers for many years because it affects not only their academic performance but also their physiological and psychological health. Male and female students perceive and react to stressors differently due to their differences in appraising stressful situations. The aims of this study were to examine differences in the perception of stressors and reactions to stressors between male and female Jordanian university students, and to identify the best predictors of stressors among them. Descriptive cross-sectional design was employed. The Student-Life Stress Inventory was used to measure stressors and reactions to stressors of 465 male and 485 female Jordanian university students recruited through stratified random sampling. There were statistical differences between male and female students regarding their perception and reactions to stressors. Female students reported a higher perception of stressors in frustrations, conflict, pressures and changes, as well as emotional reactions to stressors. Male students reported higher behavioural and cognitive reactions to stressors than female students. Participation in stress workshops, perception of general health, and perception of stress level in general were found to predict stressors among male students, while mother's educational level, perception of general health, and perception of stress level in general were found to predict stressors among female students. This study showed that gender differences in perception of stressors and reactions to stressors are similar to previous studies conducted all over the world. Interventions can be developed to help students better cope with stress. Conducting specific stress-training programmes for male and female students will help in reducing stress levels.

Performance of coils wound from long lengths of surface-coated, reacted, BSCCO-2212 conductor

Energy Technology Data Exchange (ETDEWEB)

Walker, M.S.; Hazelton, D.W.; Gardner, M.T. [Intermagnetics General Corp., Latham, NY (United States)] [and others

1996-10-01

React-before-wind surface-coated BSCCO-2212 is being established as a relatively low cost HTS conductor for practical applications. Quality tape is presently being manufactured in 450-500m lengths at a cost estimated to be 1/3-1/5 of the industry costs of BSCCO-2223 powder-in-tube tape. Robust, mechanically sound coils for applications ranging from NMR insert magnets to transformer windings are being made from this BSCCO-2212 tape. The coils have performed consistently through test and thermal cycling without degradation and as projected from short sample measurements. A hybrid approach, which uses mainly BSCCO- 2212 augmented by BSCCO-2223 conductor in the high radial field end regions, is expected to halve magnet system costs.

Radioimmunoassay of IgG and IgM rheumatoid factors reacting with human IgG

International Nuclear Information System (INIS)

Carson, D.A.; Lawrance, S.; Catalano, M.A.; Vaughan, J.H.; Abraham, G.

1977-01-01

Although IgG rheumatoid factor may play a central role in the pathogenesis of rheumatoid arthritis, previously there have been no precise methods for its specific measurement in serum and synovial fluid. This paper describes a solid phase radioimmunoassay for the independent quantification of IgM and IgG rheumatoid factor reacting with the Fc fragment of human IgG. As measured by this assay, serum IgG rheumatoid factor levels differed significantly between patients with seropositive and seronegative rheumatoid arthritis and normal control subjects. In addition, several sera and joint fluids from patients with seropositive rheumatoid arthritis, even without vasculitis, were shown by gel chromatography to have acid-dissociable complexes of IgG rheumatoid factor suggestive of IgG-IgG dimer or trimer formation

[Natural head position's reproducibility on photographs].

Science.gov (United States)

Eddo, Marie-Line; El Hayeck, Émilie; Hoyeck, Maha; Khoury, Élie; Ghoubril, Joseph

2017-12-01

The purpose of this study is to evaluate the reproducibility of natural head position with time on profile photographs. Our sample is composed of 96 students (20-30 years old) at the department of dentistry of Saint Joseph University in Beirut. Two profile photographs were taken in natural head position about a week apart. No significant differences were found between T0 and T1 (E = 1.065°). Many studies confirmed this reproducibility with time. Natural head position can be adopted as an orientation for profile photographs in orthodontics. © EDP Sciences, SFODF, 2017.