WorldWideScience

Sample records for stadium path nursing

  1. Human waves in stadiums

    Science.gov (United States)

    Farkas, I.; Helbing, D.; Vicsek, T.

    2003-12-01

    Mexican wave first widely broadcasted during the 1986 World Cup held in Mexico, is a human wave moving along the stands of stadiums as one section of spectators stands up, arms lifting, then sits down as the next section does the same. Here we use variants of models originally developed for the description of excitable media to demonstrate that this collective human behaviour can be quantitatively interpreted by methods of statistical physics. Adequate modelling of reactions to triggering attempts provides a deeper insight into the mechanisms by which a crowd can be stimulated to execute a particular pattern of behaviour and represents a possible tool of control during events involving excited groups of people. Interactive simulations, video recordings and further images are available at the webpage dedicated to this work: http://angel.elte.hu/wave.

  2. An empirical typology of hospital nurses' individual learning paths.

    Science.gov (United States)

    Poell, Rob F; Van der Krogt, Ferd J

    2014-03-01

    A relatively new theoretical concept is proposed in this paper, namely, the individual learning path. Learning paths are created by individual employees and comprise a set of learning-relevant activities that are both coherent as a whole and meaningful to them. To explore the empirical basis of this theoretical concept. A qualitative study involving semi-structured interviews. Two academic medical centers (university hospitals) and two general hospitals in the Netherlands. A total of 89 nurses were involved in the study. Semi-structured interviews were analyzed qualitatively; cluster analysis was then performed on quantified data from the interviews. Four types of learning path emerged, namely, the formal-external, self-directed, social-emotional, and information-oriented learning paths. The relatively new theoretical concept of an individual learning path can be observed in practice and a number of different learning-path types can be distinguished. Nurses were found to create their own learning paths, that is, select a theme that is relevant primarily to themselves, conduct a variety of learning activities around this theme, participate in social contexts that might help them, and mobilize learning facilities provided by their organization. These activities go way beyond the notion of employees as self-directed learners merely in a didactic sense (establishing learning goals, choosing the right learning activities for these goals, evaluating to what extent their goals have been met as a result). The findings can be interpreted as evidence of employees acting strategically when it comes to their professional development. Providers of continuing professional education/development need to take this into account. Copyright © 2013 Elsevier Ltd. All rights reserved.

  3. [Application of clinical nursing path integrated with holistic nursing in advanced schistosomiasis patients with ascites].

    Science.gov (United States)

    Mei-Zhi, Yuan; Jing-Ru, Sun; Tao, Chen; Xiao-Yu, Zhang; Liang-Cai, He; Jia-Song, Wang

    2016-05-12

    To evaluate the effect of the clinical nursing path integrated with the holistic nursing on advanced schistosomiasis patients with ascites. A total of 226 advanced schistosomiasis patients with ascites were randomly divided into a control group and an experimental group (113 cases each group). The subjects in the experimental group were nursed by the clinical nursing path integrated with the holistic nursing, while those in the control group were nursed only by the holistic nursing. Then the clinical relevant indexes of the two groups were observed, and the quality of life of the patients before and after hospital discharge was assessed. The improvement rate, satisfaction degree, and awareness rate of health knowledge of the patients in the experiment group were 93.8%, 100% and 97.4%, respectively, which were significantly higher than those of the control group (all P holistic nursing can effectively improve the improvement rate and decrease the mortality of the advanced schistosomiasis patients with ascites; meanwhile, it can shorten the hospitalization time and save the hospitalization cost. Therefore, this nursing model is suitable for popularization and application in the treatment and nursing work of the advanced schistosomiasis assistance.

  4. Stadium Relocation in Professional Football

    DEFF Research Database (Denmark)

    Junghagen, Sven; Lillo, Gonzalo Leal

    The aim of this paper is to conceptually illustrate the tension between commercialisation and club authenticity, which is a potential consequence of stadium relocation. There is a commercial pressure for relocating a football club to new and more modern facilities, but also a pressure from...

  5. The Metamorphosis of a Football Stadium.

    Science.gov (United States)

    van der Have, Pieter J.

    1999-01-01

    Examines the planning, renovation and enlargement, and funding of a new University of Utah football stadium that would also be used in the 2002 Winter Olympics. Contractor selection, solutions to construction challenges, and the steps taken to minimize risk and guarantee success of the projects are discussed, including the fact that the stadium is…

  6. An empirical typology of hospital nurses' individual learning paths

    NARCIS (Netherlands)

    Poell, R.F.; van der Krogt, F.J.

    2014-01-01

    Background A relatively new theoretical concept is proposed in this paper, namely, the individual learning path. Learning paths are created by individual employees and comprise a set of learning-relevant activities that are both coherent as a whole and meaningful to them. Objectives To explore the

  7. Structural design of Kaohsiung Stadium, Taiwan

    Science.gov (United States)

    Watanabe, Hideyuki; Tanno, Yoshiro; Nakai, Masayoshi; Ohshima, Takashi; Suguichi, Akihiro; Lee, William H.; Wang, Jensen

    2013-01-01

    This paper presents an outline description of the structural design of the main stadium for the World Games held in Kaohsiung City, Taiwan, in 2009. Three new design concepts, unseen in previous stadiums, were proposed and realized: “an open stadium”, “an urban park”, and “a spiral continuous form”. Based on the open stadium concept, simple cantilever trusses in the roof structure were arranged in a delicate rhythm, and a so-called oscillating hoop of steel tubes was wound around the top and bottom surfaces of a group of cantilever trusses to form a continuous spiral form. Also, at the same time by clearly grouping the structural elements of the roof structure, the dramatic effect of the urban park was highlighted by unifying the landscape and the spectator seating area to form the stadium facade. This paper specifically reports on the overview of the building, concepts of structural design, structural analysis of the roof, roof design, foundation design, and an outline of the construction.

  8. Influence of the medication environment on the unsafe medication behavior of nurses: A path analysis.

    Science.gov (United States)

    Yu, Xi; Li, Ce; Gao, Xueqin; Liu, Furong; Lin, Ping

    2018-04-20

    To explore the relationship between the medication environment and the unsafe medication behavior of nurses and to analyze its influence path. Unsafe medication behavior is the direct cause of medication error. The organizational environment is the foundation of and plays a guiding role in work behavior. Whether the medication environment correlates with the unsafe medication behavior of nurses remains unclear. This study used a correlative design with self-administered questionnaires, and the SHEL model, an acronym of its elements of software, hardware, environment, and liveware, was used as the framework for the medication environment. A survey was conducted among 1012 clinical nurses from five tertiary hospitals in China using the nurse unsafe medication behavior scale (NUMBS) and the nurses' perceptions of the medication environment scale (NPMES). Data were collected from January to February 2017. Path analyses were used to examine the hypothesized model. The medication environment correlated negatively with unsafe medication behavior (r=-0.48, pbehavior. Software, hardware and the environment indirectly influenced unsafe medication behavior, and nurses' personal factors played a mediating role in the relationships of unsafe medication behavior with software, hardware, and the environment. The unsafe medication behavior of nurses should be further improved. The medication environment was a predictor of unsafe medication behavior. Care managers should actively improve the medication environment to reduce the incidence of unsafe medication behaviors. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.

  9. Stigmatization and self-determination of preregistration nurses: A path analysis.

    Science.gov (United States)

    Perlman, Dana; Brighton, Renee; Patterson, Christopher; Moxham, Lorna; Taylor, Ellie K; Sumskis, Susan; Heffernan, Tim

    2018-02-01

    The concept of stigma and the stigmatizing behaviours of health-care professionals can have a profound influence on people with mental illness. A key construct that has been identified as influencing our behaviours is self-determination. As such, in the present study, we attempted to examine the connection and influence of motivational measures on the stigmatization of preregistration nurses. Data were collected once using three surveys that measured the motivational responses and stigmatizing behaviours of preregistration nurses after an approved mental health clinical placement. Using a path analysis, the results indicated that psychological needs significantly influenced preregistration nurses' self-determination towards work. In addition, self-determination was a significant influence on the stigmatization behaviours of preregistration nurses. The results of the present study provide initial empirical evidence that supports the importance of professional self-determination and the potential connection of quality care, as illustrated with the low stigmatizing behaviours of preregistration nurses who are more self-determined towards their work/career. Because of the significant results of the present study, it is recommended that future research is needed that uses self-determination theory as a lens to understand the application and importance within the field of nurse education. © 2017 Australian College of Mental Health Nurses Inc.

  10. Vertical motion and ''scarred'' eigenfunctions in the stadium billiard

    International Nuclear Information System (INIS)

    Christoffel, K.M.; Brumer, P.

    1985-01-01

    A subset of pseudoregular eigenfunctions of the classically chaotic stadium billiard is shown to participate strongly in vertically directed motion, supporting the conjectures of McDonald and of Heller regarding periodic orbits and pseudoregular eigenfunctions

  11. Saltstone Matrix Characterization And Stadium Simulation Results

    International Nuclear Information System (INIS)

    Langton, C.

    2009-01-01

    SIMCO Technologies, Inc. was contracted to evaluate the durability of the saltstone matrix material and to measure saltstone transport properties. This information will be used to: (1) Parameterize the STADIUM(reg s ign) service life code, (2) Predict the leach rate (degradation rate) for the saltstone matrix over 10,000 years using the STADIUM(reg s ign) concrete service life code, and (3) Validate the modeled results by conducting leaching (water immersion) tests. Saltstone durability for this evaluation is limited to changes in the matrix itself and does not include changes in the chemical speciation of the contaminants in the saltstone. This report summarized results obtained to date which include: characterization data for saltstone cured up to 365 days and characterization of saltstone cured for 137 days and immersed in water for 31 days. Chemicals for preparing simulated non-radioactive salt solution were obtained from chemical suppliers. The saltstone slurry was mixed according to directions provided by SRNL. However SIMCO Technologies Inc. personnel made a mistake in the premix proportions. The formulation SIMCO personnel used to prepare saltstone premix was not the reference mix proportions: 45 wt% slag, 45 wt% fly ash, and 10 wt% cement. SIMCO Technologies Inc. personnel used the following proportions: 21 wt% slag, 65 wt% fly ash, and 14 wt% cement. The mistake was acknowledged and new mixes have been prepared and are curing. The results presented in this report are assumed to be conservative since the excessive fly ash was used in the SIMCO saltstone. The SIMCO mixes are low in slag which is very reactive in the caustic salt solution. The impact is that the results presented in this report are expected to be conservative since the samples prepared were deficient in slag and contained excess fly ash. The hydraulic reactivity of slag is about four times that of fly ash so the amount of hydrated binder formed per unit volume in the SIMCO saltstone samples

  12. An Urban Soccer Stadium for Washington D.C.

    OpenAIRE

    Ard, John Christopher

    2014-01-01

    Expansive parking lots, miles of asphalt, and traffic jams: this is what the modern sport stadia has come to represent. Does it have to be this way? What does the future of sports stadia hold? Can we build a stadium that is better integrated to the community around it? The stadium must become a major urban element again and it must engage the urban context. D.C. United, the most storied franchise in MLS history, needs a new home. Baltimore and other locations in Maryland would gladly we...

  13. The Path to Advanced Practice Licensure for Clinical Nurse Specialists in Washington State.

    Science.gov (United States)

    Schoonover, Heather

    The aim of this study was to provide a review of the history and process to obtaining advanced practice licensure for clinical nurse specialists in Washington State. Before 2016, Washington State licensed certified nurse practitioners, certified nurse midwives, and certified nurse anesthetists under the designation of an advanced registered nurse practitioner; however, the state did not recognize clinical nurse specialists as advanced practice nurses. The work to drive the rule change began in 2007. The Washington Affiliate of the National Association of Clinical Nurse Specialists used the Power Elite Theory to guide advocacy activities, building coalitions and support for the desired rule changes. On January 8, 2016, the Washington State Nursing Care Quality Assurance Commission voted to amend the state's advanced practice rules, including clinical nurse specialists in the designation of an advanced practice nurse. Since the rule revision, clinical nurse specialists in Washington State have been granted advanced registered nurse practitioner licenses. Driving changes in state regulatory rules requires diligent advocacy, partnership, and a deep understanding of the state's rule-making processes. To be successful in changing rules, clinical nurse specialists must build strong partnerships with key influencers and understand the steps in practice required to make the desired changes.

  14. Recognizing chaotic states in stadium billiard by calculating gyration radius

    Directory of Open Access Journals (Sweden)

    M. Barezi

    2006-12-01

    Full Text Available   Nowadays study of chaotic quantum billiards because of their relation to Nano technology. In this paper distribution of zeros of wave function on the boundary of two circular and stadium billiards are investigated. By calculating gyration radius for these points chaotic and non-chaotic states are distinguished.

  15. The Effects of Direction of Exertion, Path, and Load Placement in Nursing Cart Pushing and Pulling Tasks: An Electromyographical Study.

    Science.gov (United States)

    Kao, Huei Chu; Lin, Chiuhsiang Joe; Lee, Yung Hui; Chen, Su Huang

    2015-01-01

    The purpose of this study was to explore the effects of direction of exertion (DOE) (pushing, pulling), path (walking in a straight line, turning left, walking uphill), and load placement (LP) (the 18 blocks were indicated by X, Y and Z axis; there were 3 levels on the X axis, 2 levels on the Y axis, and 3 levels on the Z axis) on muscle activity and ratings of perceived exertion in nursing cart pushing and pulling tasks. Ten participants who were female students and not experienced nurses were recruited to participate in the experiment. Each participant performed 108 experimental trials in the study, consisting of 2 directions of exertion (push and pull), 3 paths, and 18 load placements (indicated by X, Y and Z axes). A 23kg load was placed into one load placement. The dependent variables were electromyographic (EMG) data of four muscles collected bilaterally as follows: Left (L) and right (R) trapezius (TR), flexor digitorum superficialis (FDS), extensor digitorum (ED), and erector spinae (ES) and subjective ratings of perceived exertion (RPE). Split-split-plot ANOVA was conducted to analyze significant differences between DOE, path, and LP in the EMG and RPE data. Pulling cart tasks produced a significantly higher activation of the muscles (RTR:54.4%, LTR:50.3%, LFDS:57.0%, LED:63.4%, RES:40.7%, LES:36.7%) than pushing cart tasks (RTR:42.4%, LTR:35.1%, LFDS:32.3%, LED:55.1%, RES:33.3%, LES:32.1%). A significantly greater perceived exertion was found in pulling cart tasks than pushing cart tasks. Significantly higher activation of all muscles and perceived exertion were observed for walking uphill than walking in a straight line and turning left. Significantly lower muscle activity of all muscles and subject ratings were observed for the central position on the X axis, the bottom position on the Y axis, and the posterior position on the Z axis. These findings suggest that nursing staff should adopt forward pushing when moving a nursing cart, instead of backward

  16. Bridging the Gender Divide: Facilitating the Educational Path for Men in Nursing.

    Science.gov (United States)

    Hodges, Eric A; Rowsey, Pamela Johnson; Gray, Tamryn Fowler; Kneipp, Shawn M; Giscombe, Cheryl Woods; Foster, Beverly B; Alexander, G Rumay; Kowlowitz, Vicki

    2017-05-01

    Although the number of men entering the nursing profession over the past century has increased incrementally, the proportion of men remains low in contrast to the U.S. On matriculation into nursing school, men face stereotypes about the nursing profession and the characteristics of the men who enter it. Men may also face a number of gender-based barriers, including lack of history about men in nursing, lack of role models, role strain, gender discrimination, and isolation. This article describes each of these barriers and provides strategies to improve male students' learning experience. The efforts of one nursing school to address many of these barriers are also described. Through acknowledging gender barriers and taking intentional steps to address them with prenursing and nursing students, schools of nursing may create a more inclusive environment and enhance the profession's diversity. [J Nurs Educ. 2017;56(5):295-299.]. Copyright 2017, SLACK Incorporated.

  17. How to identify and recruit nurses to a survey 14 and 24 years after graduation in a context of scarce data: lessons learnt from the 2012 nurses at work pilot study on nurses' career paths.

    Science.gov (United States)

    Addor, Véronique; Jeannin, André; Morin, Diane; Lehmann, Philippe; Jeanneret, Floriane Roulet; Schwendimann, René

    2015-03-26

    Nursing workforce data are scarce in Switzerland, with no active national registry of nurses. The worldwide nursing shortage is also affecting Switzerland, so that evidence-based results of the nurses at work project on career paths and retention are needed as part of the health care system stewardship; nurses at work is a retrospective cohort study of nurses who graduated in Swiss nursing schools in the last 30 years. Results of the pilot study are presented here (process and feasibility). The objectives are (1) to determine the size and structure of the potential target population by approaching two test-cohorts of nursing graduates (1988 and 1998); (2) to test methods of identifying and reaching them 14 and 24 years after graduation; (3) to compute participation rates, and identify recruitment and participation biases. Graduates' names were retrieved from 26 Swiss nursing schools: 488 nurses from the 1988 cohort and 597 from 1998 were invited to complete a web-based questionnaire. Initial updated addresses (n = 278, seed sample) were found using the Swiss Nursing Association member file. In addition, a snowball method was applied for recruitment, where directly-contacted respondents provided additional names of graduate mates or sent them the invitation. The study was further advertized through the main employers, study partners, and a press release. Participation rate was 26.5% (n = 287), higher for the older cohort of 1988 (29.7%, n = 145) than for 1998 (15.6%, n = 93). Additional nurses (n = 363) not belonging to the test cohorts also answered. All schools were represented among respondents. Only 18 respondents (6%) worked outside nursing or not at all. Among respondents, 94% would 'probably' or 'maybe' agree to participate in the main study. The pilot study demonstrated that targeted nurses could be identified and approached. There is an overwhelming interest in the project from them and from policymakers. Recommendations to increase

  18. Likelihood of illegal alcohol sales at professional sport stadiums.

    Science.gov (United States)

    Toomey, Traci L; Erickson, Darin J; Lenk, Kathleen M; Kilian, Gunna R

    2008-11-01

    Several studies have assessed the propensity for illegal alcohol sales at licensed alcohol establishments and community festivals, but no previous studies examined the propensity for these sales at professional sport stadiums. In this study, we assessed the likelihood of alcohol sales to both underage youth and obviously intoxicated patrons at professional sports stadiums across the United States, and assessed the factors related to likelihood of both types of alcohol sales. We conducted pseudo-underage (i.e., persons age 21 or older who appear under 21) and pseudo-intoxicated (i.e., persons feigning intoxication) alcohol purchase attempts at stadiums that house professional hockey, basketball, baseball, and football teams. We conducted the purchase attempts at 16 sport stadiums located in 5 states. We measured 2 outcome variables: pseudo-underage sale (yes, no) and pseudo-intoxicated sale (yes, no), and 3 types of independent variables: (1) seller characteristics, (2) purchase attempt characteristics, and (3) event characteristics. Following univariate and bivariate analyses, we a separate series of logistic generalized mixed regression models for each outcome variable. The overall sales rates to the pseudo-underage and pseudo-intoxicated buyers were 18% and 74%, respectively. In the multivariate logistic analyses, we found that the odds of a sale to a pseudo-underage buyer in the stands was 2.9 as large as the odds of a sale at the concession booths (30% vs. 13%; p = 0.01). The odds of a sale to an obviously intoxicated buyer in the stands was 2.9 as large as the odds of a sale at the concession booths (89% vs. 73%; p = 0.02). Similar to studies assessing illegal alcohol sales at licensed alcohol establishments and community festivals, findings from this study shows the need for interventions specifically focused on illegal alcohol sales at professional sporting events.

  19. Integrated Brand Promotion – Advertisement for STADIUM OY

    OpenAIRE

    Mai, Tung

    2014-01-01

    This project-based thesis is an advertisement for Stadium Oy. In 23 years of leading marketing department, Stadium’s marketing manager had to say this is a pioneer time when Stadium’s outsources an advertising project to an external individual resource. The project, therefore, consists a number of business partners so that professional quality is guaranteed to deliver. STADIUM’s advertising strategy stays committed to the company’s business model and its mission. This directly affec...

  20. The contribution of personality and workplace characteristics in predicting turnover intention among sexual assault nurse examiners: a path analytic study.

    Science.gov (United States)

    Strunk, Kathleen C; Strunk, Kamden K

    2012-09-01

    The purpose of this study was to determine how personality characteristics, sense of organizational empowerment, and job satisfaction combine to predict turnover intention among a population of Sexual Assault Nurse Examiners (SANEs). Data were collected from 161 SANEs from 23 SANE organizations across the central and west United States through standardized tools and a demographic questionnaire. Both personality, namely agreeableness and workplace characteristics, particularly perceived empowerment and job satisfaction, combine to predict intention to leave the job of these sampled SANEs. One particularly curious finding was the positive prediction of agreeableness on turnover intention - that is, more agreeable people would be more likely to leave their jobs as SANEs. Professionals can gain insight from the path analysis results that show the need to address both personal and organizational factors in mitigating turnover intention among SANEs. This appears to be particularly true in providing a sense of empowerment and opportunity within the organization. © 2012 International Association of Forensic Nurses.

  1. Relationship between inpatient satisfaction and nurse absenteeism: an exploratory study using WHO-PATH performance indicators in France.

    Science.gov (United States)

    Moret, Leila; Anthoine, Emmanuelle; Paillé, Cécile; Tricaud-Vialle, Sophie; Gerbaud, Laurent; Giraud-Roufast, Alexandra; Michel, Philippe; Lombrail, Pierre

    2012-01-31

    Indicators describing results of care are widely explored in term of patient satisfaction (PS). Among factors explaining PS, human resources indicators have been studied in terms of burnout or job satisfaction among healthcare professionals. No research work has set out to explore the effect of absenteeism on PS scores. The objective of this study was to explore interaction between rate of absenteeism among nurses and PS results. France has taken part in a project named PATH (Performance Assessment Tool for Hospitals) of the World Health Organization, aiming to develop a tool for the assessment of hospital performance. In the first semester 2008, 25 volunteering short-stay hospitals (teaching, general and private) provide complete data on nurse short-absenteeism (periods of up to 7 consecutive days of sick leave) and on PS (a cross-sectional postal survey using a standardized validated French-language scale EQS-H exploring "quality of medical information" (MI) and "relationships with staff and daily routine" (RS)). A multi-level model was used to take into account of the hierarchical nature of the data. Two thousand and sixty-five patients responded to the satisfaction questionnaire (participation rate: 40.9%). The mean age of respondents was 58 yrs (± 19), 41% were men. The mean duration of hospitalisation was 7.5 days (± 11.1). The mean absenteeism rate for nurses was 0.24% (± 0.14).All the PS scores were significantly and negatively correlated with rate of short-absenteeism among nurses (MI score: ρ = -0.55, p absenteeism among nurses and PS scores (MI: p = 0.027; RS: p = 0.017). Results obtained in this study show that short-term absenteeism among nurses seems to be significantly and negatively correlated with PS. Our findings are an invitation to deepen our understanding of the impact of human resources on PS and to develop more specific projects.

  2. Relationship between inpatient satisfaction and nurse absenteeism: an exploratory study using WHO-PATH performance indicators in France

    Science.gov (United States)

    2012-01-01

    Background Indicators describing results of care are widely explored in term of patient satisfaction (PS). Among factors explaining PS, human resources indicators have been studied in terms of burnout or job satisfaction among healthcare professionals. No research work has set out to explore the effect of absenteeism on PS scores. The objective of this study was to explore interaction between rate of absenteeism among nurses and PS results. Methods France has taken part in a project named PATH (Performance Assessment Tool for Hospitals) of the World Health Organization, aiming to develop a tool for the assessment of hospital performance. In the first semester 2008, 25 volunteering short-stay hospitals (teaching, general and private) provide complete data on nurse short-absenteeism (periods of up to 7 consecutive days of sick leave) and on PS (a cross-sectional postal survey using a standardized validated French-language scale EQS-H exploring "quality of medical information" (MI) and "relationships with staff and daily routine" (RS)). A multi-level model was used to take into account of the hierarchical nature of the data. Results Two thousand and sixty-five patients responded to the satisfaction questionnaire (participation rate: 40.9%). The mean age of respondents was 58 yrs (± 19), 41% were men. The mean duration of hospitalisation was 7.5 days (± 11.1). The mean absenteeism rate for nurses was 0.24% (± 0.14). All the PS scores were significantly and negatively correlated with rate of short-absenteeism among nurses (MI score: ρ = -0.55, p absenteeism among nurses and PS scores (MI: p = 0.027; RS: p = 0.017). Conclusion Results obtained in this study show that short-term absenteeism among nurses seems to be significantly and negatively correlated with PS. Our findings are an invitation to deepen our understanding of the impact of human resources on PS and to develop more specific projects. PMID:22293709

  3. Family characteristics and health behaviour as antecedents of school nurses' concerns about adolescents' health and development: a path model approach.

    Science.gov (United States)

    Poutiainen, Hannele; Levälahti, Esko; Hakulinen-Viitanen, Tuovi; Laatikainen, Tiina

    2015-05-01

    Family socio-economic factors and parents' health behaviours have been shown to have an impact on the health and well-being of children and adolescents. Family characteristics have also been associated with school nurses' concerns, which arose during health examinations, about children's and adolescents' physical health and psychosocial development. Parental smoking has also been associated with smoking in adolescents. The aim of this study was to determine to what extent school nurses' concerns about adolescents' physical health and psychosocial development related to family characteristics are mediated through parents' and adolescents' own health behaviours (smoking). A path model approach using cross-sectional data was used. In 2008-2009, information about health and well-being of adolescents was gathered at health examinations of the Children's Health Monitoring Study. Altogether 1006 eighth and ninth grade pupils in Finland participated in the study. The associations between family characteristics, smoking among parents and adolescents and school nurses' concerns about adolescents' physical health and psychosocial development were examined using a structural equation model. Paternal education had a direct, and, through fathers' and boys' smoking, an indirect association with school nurses' concerns about the physical health of boys. Paternal labour market status and family income were only indirectly associated with concerns about the physical health of boys by having an effect on boys' smoking through paternal smoking, and a further indirect effect on concerns about boys' health. In girls, only having a single mother was strongly associated with school nurses' concerns about psychosocial development through maternal and adolescent girl smoking. Socio-economic family characteristics and parental smoking influence adolescent smoking and are associated with school nurses' concerns about adolescents' physical health and psychosocial development. The findings

  4. [Path analysis of the Influence of Hospital Ethical Climate Perceived by Nurses on Supervisor Trust and Organizational Effectiveness].

    Science.gov (United States)

    Noh, Yoon Goo; Jung, Myun Sook

    2016-12-01

    The purpose of this study was to analyze the paths of influence that a hospital's ethical climate exerts on nurses' organizational commitment and organizational citizenship behavior, with supervisor trust as the mediating factor, and verify compatibility of the models in hospital nurses. The sample consisted of 374 nurses recruited from four hospitals in 3 cities in Korea. The measurements included the Ethical Climate Questionnaire, Supervisor Trust Questionnaire, Organizational Commitment Questionnaire and Organizational Citizenship Behavior Questionnaire. Ethical Climate Questionnaire consisted of 6 factors; benevolence, personal morality, company rules and procedures, laws and professional codes, self-interest and efficiency. Data were analysed using SPSS version 18.0 and AMOS version 18.0. Supervisor trust was explained by benevolence and self-interest (29.8%). Organizational commitment was explained by benevolence, supervisor trust, personal morality, and rules and procedures (40.4%). Organizational citizenship behavior was explained by supervisor trust, laws and codes, and benevolence (21.8%). Findings indicate that managers need to develop a positive hospital ethical climate in order to improve nurses' trust in supervisors, organizational commitment and organizational citizenship behavior.

  5. Typology of Retractable Roof Structures in Stadiums and Sports Halls

    Directory of Open Access Journals (Sweden)

    Andrej Mahovič

    2015-10-01

    Full Text Available Retractable roof structures are one of the four fundamental systems (in addition to the playing area, stands and facade in a stadium and sports hall. The roof protects users against various weather conditions and creates optimum circumstances for carrying out different activities. Stadiums and sports halls with retractable roof structures can host a greater variety of activities, improve the quality of their implementation and the quality of visitors’ experience, and affect the perception and experience of people using or observing such buildings. A retractable roof structure allows for natural lighting and ventilation of the venue, gives optimal conditions for grass growth on the playing field, and reduces costs of use and maintenance of the building. Different typologies of movement of roof structures (frequency of opening and closing, design of the structure, and methods of movement are categorised in terms of their architectural and structural design. Application of different retractable roof systems worldwide is indicator of their effectiveness and efficiency, and is basis for use of movement also in other fundamental systems of stadiums and sports halls. Research and identification of characteristics of retractable roof structures lead to the design of new moving systems that can with the application of the moving principle change the purpose of movable elements or assume the characteristics of other fundamental systems.

  6. Aplikasi Sistem Pendukung Keputusan Stadium Penyakit Kanker Payudara Menggunakan Logika Fuzzy Berbasis Android

    OpenAIRE

    Rico Adrial

    2017-01-01

    Kanker payudara dapat lebih mudah diatasi saat masih stadium dini. Langkah awal dari pengobatan kanker payudara adalah dengan mendeteksi apakah gejala yang muncul pada tubuh pasien benar-benar merupakan sel kanker. Stadium kanker adalah hasil diagnosis dari fisikawan medis sehingga memudahkan pemahaman tentang penyakit pasien. Pada penelitian ini digunakan Fuzzy Logic sebagai metode yang membantu pada sistem pendukung keputusan dalam menentukan stadium kanker payudara. Saat ini banyak aplikas...

  7. Home field advantage: new stadium construction and team performance in professional sports.

    Science.gov (United States)

    Watson, Jack C; Krantz, Andrew J

    2003-12-01

    To identify the relations between new stadiums and home team performance and attendance for professional baseball (MLB) (n=14), basketball (NBA) (n=13), and football (NFL) (n=25) teams in the USA since 1950 dependent t tests assessed significance of increases in attendance in both MLB and the NBA and a significantly improved home winning percentage in MLB following the building of new stadiums. Implications include a better understanding of the rationales used by owners, fans, and players for building new stadiums.

  8. Relationship between inpatient satisfaction and nurse absenteeism: an exploratory study using WHO-PATH performance indicators in France

    Directory of Open Access Journals (Sweden)

    Moret Leila

    2012-01-01

    Full Text Available Abstract Background Indicators describing results of care are widely explored in term of patient satisfaction (PS. Among factors explaining PS, human resources indicators have been studied in terms of burnout or job satisfaction among healthcare professionals. No research work has set out to explore the effect of absenteeism on PS scores. The objective of this study was to explore interaction between rate of absenteeism among nurses and PS results. Methods France has taken part in a project named PATH (Performance Assessment Tool for Hospitals of the World Health Organization, aiming to develop a tool for the assessment of hospital performance. In the first semester 2008, 25 volunteering short-stay hospitals (teaching, general and private provide complete data on nurse short-absenteeism (periods of up to 7 consecutive days of sick leave and on PS (a cross-sectional postal survey using a standardized validated French-language scale EQS-H exploring "quality of medical information" (MI and "relationships with staff and daily routine" (RS. A multi-level model was used to take into account of the hierarchical nature of the data. Results Two thousand and sixty-five patients responded to the satisfaction questionnaire (participation rate: 40.9%. The mean age of respondents was 58 yrs (± 19, 41% were men. The mean duration of hospitalisation was 7.5 days (± 11.1. The mean absenteeism rate for nurses was 0.24% (± 0.14. All the PS scores were significantly and negatively correlated with rate of short-absenteeism among nurses (MI score: ρ = -0.55, p ρ = -0.47, p = 0.02. The mixed model found a significant relationship between rate of absenteeism among nurses and PS scores (MI: p = 0.027; RS: p = 0.017. Conclusion Results obtained in this study show that short-term absenteeism among nurses seems to be significantly and negatively correlated with PS. Our findings are an invitation to deepen our understanding of the impact of human resources on PS and to

  9. Gaining a Doctorate in Nursing in Chile: a path not without its difficulties

    Science.gov (United States)

    Valenzuela-Suazo, Sandra; Sanhueza-Alvarado, Olivia

    2015-01-01

    OBJECTIVE: to analyze in detail the current situation of doctorate training in Nursing in Chile. METHODOLOGY: through a historical and contextual analysis of the background to the development of postgraduate education in Nursing, especially at doctorate level. RESULTS: aspects that limit development were identified in national institutionalism of the sciences as well as in higher education and health institutions, especially the limited value placed on nursing as an area of knowledge in this country, the lack of clear institutional policies for postgraduate studies, as well as the postgraduate's re-inclusion into the academic and care area, with access to national research funds difficult. FINAL CONSIDERATIONS: access to grants and funds, together with recognition as an area of knowledge belonging on academic schedules, especially in health institutions, are the main challenges to consolidation. One aspect that would enable a more rapid advance is through national and international inter-institutional agreements, adding together potential, with access to funds for studies and academic and student internships, enabling joint research to go ahead. PMID:26312629

  10. Computational analysis of natural ventilation in a large semi-enclosed stadium

    NARCIS (Netherlands)

    Hooff, van T.A.J.; Blocken, B.J.E.; Borri, C.; Augusti, G.; Bartoli, G.; Facchini, L.

    2009-01-01

    The last decades, newly built large sports stadia are also increasingly being used for other events such as concerts, conferences and other activities. An example of such a modern multifunctional stadium is the Amsterdam ‘ArenA’ in the Netherlands. This stadium is equipped with a roof that can be

  11. Recycling at Penn State's Beaver Stadium. "Recycle on the Go" Success Story

    Science.gov (United States)

    US Environmental Protection Agency, 2009

    2009-01-01

    With a 13-year-old recycling program, The Pennsylvania State University's (Penn State) Beaver Stadium in the past diverted nearly 30 tons of recyclables per year from local landfills. A new initiative to promote recycling in the stadium's tailgating area has helped Penn State more than triple its old recycling record, collecting 112 tons in 2008.…

  12. 2010 FIFA World Cup stadium investment: Does the post-event ...

    African Journals Online (AJOL)

    Bank Stadium (Soccer City) in Johannesburg and construct five new ... In South Africa's case, many ... studied. Much academic effort has been invested in the development of ... the construction costs and upgrades to stadiums, France, who hosted the WC in ..... the Economic Impact of the World Cup', Regional Studies, vol.

  13. Influence of wind direction and urban surroundings on natural ventilation of a large football stadium

    NARCIS (Netherlands)

    Hooff, van T.A.J.; Blocken, B.J.E.

    2011-01-01

    In this paper, CFD simulations of the natural ventilation of a large semi-enclosed stadium in the Netherlands during summer conditions are described. The simulations are performed to assess the air exchange rate for eight wind directions. The CFD model consists of both the complex stadium geometry

  14. 27 CFR 6.53 - Advertising in ballparks, racetracks, and stadiums.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Advertising in ballparks, racetracks, and stadiums. 6.53 Section 6.53 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX... Advertising, Display Or Distribution Service § 6.53 Advertising in ballparks, racetracks, and stadiums. The...

  15. Exploring the potential role of the advanced nurse practitioner within a care path for patients with chronic fatigue syndrome.

    Science.gov (United States)

    Ryckeghem, Hannah; Delesie, Liesbeth; Tobback, Els; Lievens, Stefaan; Vogelaers, Dirk; Mariman, An

    2017-07-01

    To explore the experiences and expectations of patients with chronic fatigue syndrome and general practitioners to develop the potential role of an advanced nurse practitioner at the diagnostic care path of abnormal fatigue developed for regional transmural implementation in the Belgian provinces of East and West Flanders. Patients with chronic fatigue syndrome experience an incapacitating chronic fatigue that is present for at least 6 months. Since many uncertainties exist about the causes and progression of the disease, patients have to cope with disbelief and scepticism. Access to health care may be hampered, which could lead to inappropriate treatments and guidance. Qualitative design. Individual semi-structured interviews were conducted with patients with chronic fatigue syndrome and general practitioners in Belgium. Data were collected over 9 months in 2014-2015. All interviews were audio recorded and transcribed for qualitative analysis using open explorative thematic coding. Fifteen patients and 15 general practitioners were interviewed. Three themes were identified: mixed feelings with the diagnosis, lack of one central intermediator and insufficient coordination. Participants stressed the need for education, knowledge and an intermediator to provide relevant information at the right time and to build up a trust relationship. This qualitative exploration underscores some clear deficiencies in the guidance of patients suffering from chronic fatigue syndrome and abnormal fatigue. An advanced nurse practitioner as a central intermediator in the transmural care of these patients could promote interdisciplinary/multidisciplinary collaboration and effective communication, provide education and ensure a structured and coordinated approach. © 2016 John Wiley & Sons Ltd.

  16. [Association between Emotional Labor, Emotional Dissonance, Burnout and Turnover Intention in Clinical Nurses: A Multiple-Group Path Analysis across Job Satisfaction].

    Science.gov (United States)

    Back, Chi Yun; Hyun, Dae Sung; Chang, Sei Jin

    2017-12-01

    This study was conducted to investigate the influence of emotional labor, emotional dissonance, and burnout on nurse's turnover intention and examine the effect of job satisfaction on the relationships among emotional labor, emotional dissonance, burnout, and turnover intention. The sample consisted of 350 nurses recruited from 6 general hospitals in 2 cities in Korea. A multiple-group analysis was utilized. Data were analyzed using SPSS statistics 23 and AMOS 20. In the path analysis, turnover intention was directly related to burnout in clinical nurses who had a high job satisfaction (β=.24, p=.003), while it was indirectly related to emotional dissonance (β=.13, p=.002). In the multiple-group path analysis, turnover intention was directly related to emotional dissonance (β=.18, p=.033) and burnout (β=.26, p=.002) for nurses with low job satisfaction. These results indicate that manuals and guidelines to alleviate the negative effects of emotional labor, emotional dissonance, and burnout, and to increase job satisfaction are strongly required to reduce turnover intention in nurses at the organizational level as well as at the individual level. © 2017 Korean Society of Nursing Science

  17. Aplikasi Sistem Pendukung Keputusan Stadium Penyakit Kanker Payudara Menggunakan Logika Fuzzy Berbasis Android

    Directory of Open Access Journals (Sweden)

    Rico Adrial

    2017-08-01

    Full Text Available Kanker payudara dapat lebih mudah diatasi saat masih stadium dini. Langkah awal dari pengobatan kanker payudara adalah dengan mendeteksi apakah gejala yang muncul pada tubuh pasien benar-benar merupakan sel kanker. Stadium kanker adalah hasil diagnosis dari fisikawan medis sehingga memudahkan pemahaman tentang penyakit pasien. Pada penelitian ini digunakan Fuzzy Logic sebagai metode yang membantu pada sistem pendukung keputusan dalam menentukan stadium kanker payudara. Saat ini banyak aplikasi android yang dibuat sebagai penyedia informasi di bidang kesehatan. Penggabungan ilmu di bidang kesehatan. Fuzzy logic dan android diharapkan menjadi sebuah aplikasi mutakhir dalam membuat keputusan di bidang kesehatan. Sistem pendukung keputusan stadium kanker payudara telah dirancang. Dapat disimpulkan bahwa aplikasi ini dapat mengkalkulasi berdasarkan fuzzy logic metode Sugeno dan telah di uji baik secara penghitungan pada matlab maupun manual.

  18. The Research on Application of Information Technology in sports Stadiums

    Science.gov (United States)

    Can, Han; Lu, Ma; Gan, Luying

    With the Olympic glory in the national fitness program planning and the smooth development of China, the public's concern for the sport continues to grow, while their physical health is also increasingly fervent desired, the country launched a modern technological construction of sports facilities. Information technology applications in the sports venues in the increasingly wide range of modern venues and facilities, including not only the intelligent application of office automation systems, intelligent systems and sports facilities, communication systems for event management, ticket access control system, contest information systems, television systems, Command and Control System, but also in action including the use of computer technology, image analysis, computer-aided training athletes, sports training system and related data entry systems, decision support systems.Using documentary data method, this paper focuses on the research on application of information technology in Sports Stadiums, and try to explore its future trends.With a view to promote the growth of China's national economyand,so as to improve the students'quality and promote the cause of Chinese sports.

  19. Acute cardiac events and deployment of emergency medical teams and automated external defibrillators in large football stadiums in the Netherlands.

    Science.gov (United States)

    van de Sandt, Femke; Umans, Victor

    2009-10-01

    The incidence of acute cardiac events - including out-of-hospital cardiac arrest - may be increased in visitors of large sports stadiums when compared with the general population. This study sought to investigate the incidence of acute cardiac events inside large Dutch football stadiums, as well as the emergency response systems deployed in these stadiums and the success rate for in-stadium resuscitation. Retrospective cohort study using a questionnaire sent to the 20 Dutch stadiums that hosted professional matches during the 2006-2007 and 2007-2008 football seasons. Stadium capacity ranged from 3600 to 51 600 spectators. Nearly 13 million spectators attended 686 'Eredivisie' (Honorary Division) and European football matches. All stadiums distribute multiple emergency medical teams among the spectators. Eighty-five percent of the stadiums have an ambulance standby during matches, 95% of the stadiums were equipped with automated external defibrillators (AEDs) during the study period. On an average, one AED was available for every 7576 spectators (range 1800-29 600). Ninety-three cardiac events were reported (7.3 per 1 million spectators). An AED was used 22 times (1.7 per 1 million spectators). Resuscitation was successful in 18 cases (82%, 95% confidence interval: 61-93). The incidence of out-of-hospital cardiac arrest inside large football stadiums in the Netherlands, albeit increased when compared with the general population, is low. The success rate for in-stadium resuscitation by medical teams equipped with AEDs is high. Dutch stadiums appear vigilant in regard to acute cardiac events. This report highlights the importance of adequate emergency medical response systems (including AEDs) in large sports venues.

  20. [Cardiac arrest in spectators in German football stadiums. Precautionary measures, frequency and short-term outcome].

    Science.gov (United States)

    Luiz, T; Preisegger, T; Rombach, D; Madler, C

    2014-09-01

    Provision of medical care is an important element of safety precautions for visitors of sports arenas. The organizational requirements are especially high if cardiac arrest occurs; how this scenario is managed may thus serve as the ultimate indicator of the quality of stadium medical care. The objectives of this study were to analyze the structures and the resources available for the medical care of spectators in German professional soccer stadiums and to identify the frequency and the primary resuscitation success of cardiac arrest. In 2011 a questionnaire-based survey was performed among the clubs of the first and second German soccer leagues regarding medical care of spectators during the seasons 2008/2009 and 2009/2010. The focus was on the qualifications of emergency teams, the equipment and the incidence of cardiac arrest. A total of 15 stadiums were included (38%) in the survey. The mean number of physicians and emergency medical technicians on site was 0.6/10,000 seats and 16/10,000 seats, respectively. Of the latter, a mean of 82% (minimum 20% and maximum 100%) had received training with automatic external defibrillators. In 87% of the stadiums regular advanced life support training (ALS) was required. The mean number of defibrillators per stadium was 2.8/10,000 seats (minimum 1.3 and maximum 3.8) including 1.7 automatic defibrillators (minimum 0.4 and maximum 2.8). For patient transport, a mean of 0.65 ALS ambulance vehicles per 10,000 seats (minimum 0.14 and maximum 1.46) were available on site. In all stadiums staff members were connected via mobile radio communication with the stadium medical control room. A total of 52 cardiac arrests (=0.25/100,000 spectators) were recorded of which 96% of the patients were transported to hospitals with spontaneous circulation. Cardiac arrests are not a rare occurrence in German soccer stadiums. The participating stadiums are overall well prepared for such incidents in terms of organization, staff and technology and

  1. Magnetic properties of elliptical and stadium-shaped nanoparticles: Effect of the shape anisotropy

    Energy Technology Data Exchange (ETDEWEB)

    Corona, R.M. [Departamento de Fisica, Universidad de Santiago de Chile (USACH), Avda. Ecuador 3493, 917-0124 Santiago (Chile); Altbir, D. [Departamento de Fisica, Universidad de Santiago de Chile (USACH), Avda. Ecuador 3493, 917-0124 Santiago (Chile); Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Avda. Ecuador 3493, 917-0124 Santiago (Chile); Escrig, J., E-mail: jescrigm@gmail.com [Departamento de Fisica, Universidad de Santiago de Chile (USACH), Avda. Ecuador 3493, 917-0124 Santiago (Chile); Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Avda. Ecuador 3493, 917-0124 Santiago (Chile)

    2012-11-15

    Elliptical and stadium-shaped nanoparticles as a function of their geometry have been investigated using numerical simulations. The effect of the shape anisotropy of the particles on coercivity and remanence together with the angular dependence of the remanence and coercivity are addressed. Our results demonstrate that the stadium-shaped particles have many of the outstanding properties of elliptical particles, but also have unique properties, such that the coercivity and remanence remain stable for a wide range of geometry parameters, and exhibit a peculiar angular dependence in the coercivity. These properties suggest that they can be useful for applications in the area of magnetic recording systems. - Highlights: Black-Right-Pointing-Pointer Coercivity and remanence are strongly affected by the shape anisotropy of the particles. Black-Right-Pointing-Pointer Coercivities for ellipses are nearly three times the obtained for stadium-shaped particles. Black-Right-Pointing-Pointer Elliptical particles with {delta}{<=}0.6, the hystereses resemble the square loops of wires. Black-Right-Pointing-Pointer An anhisteretic behavior appears for {theta}=90 Degree-Sign for elliptical particles, which do not appear in stadium-shaped particles. Black-Right-Pointing-Pointer Stadium-shaped particles have unique properties that allow us to suggest them for applications.

  2. Magnetic properties of elliptical and stadium-shaped nanoparticles: Effect of the shape anisotropy

    International Nuclear Information System (INIS)

    Corona, R.M.; Altbir, D.; Escrig, J.

    2012-01-01

    Elliptical and stadium-shaped nanoparticles as a function of their geometry have been investigated using numerical simulations. The effect of the shape anisotropy of the particles on coercivity and remanence together with the angular dependence of the remanence and coercivity are addressed. Our results demonstrate that the stadium-shaped particles have many of the outstanding properties of elliptical particles, but also have unique properties, such that the coercivity and remanence remain stable for a wide range of geometry parameters, and exhibit a peculiar angular dependence in the coercivity. These properties suggest that they can be useful for applications in the area of magnetic recording systems. - Highlights: ► Coercivity and remanence are strongly affected by the shape anisotropy of the particles. ► Coercivities for ellipses are nearly three times the obtained for stadium-shaped particles. ►Elliptical particles with δ≤0.6, the hystereses resemble the square loops of wires. ► An anhisteretic behavior appears for θ=90° for elliptical particles, which do not appear in stadium-shaped particles. ► Stadium-shaped particles have unique properties that allow us to suggest them for applications.

  3. The Woodenest. Stadium by ZHA in the South-West of England

    Directory of Open Access Journals (Sweden)

    Nina Frolova

    2017-03-01

    Full Text Available The Forest Green Rovers Stadium (Stroud, UK designed by Zaha Hadid Architects will be built almost entirely of wood – the first time that will have been done anywhere in the world. The use of wood will ensure reduction of carbon dioxide emissions. Being a renewable resource, wood will also enhance the ecological characteristics of the building. The stadium’s roof is covered with a transparent membrane, which minimizes shadows and does not prevent the growth of grass on the stadium. The position of all the seats provides excellent views of the field. The first stage of building is planned for 5,000 spectators, increasing to 10,000 at the second stage. The stadium will be a part of the Eco Park development with the total area of 40 ha.

  4. The Effect of a Sports Stadium on Housing Rents: An Application of Geographically Weighted Regression

    Directory of Open Access Journals (Sweden)

    Jorge Enrique Agudelo Torres

    2015-06-01

    Full Text Available Researchers have determined that real estate prices vary in continuous ways as a function of spatial characteristics.  In this study we examine whether geographically weighted regression (GWR provides different estimates of price effects around a sports stadium than more traditional regression techniques.  We find that an application of GWR with hedonic prices finds that the stadium has a negative external effect on housing rents that extends outward 560 meters, in contrast to the positive external effect on housing rents found using a conventional estimation technique.

  5. The Impact of the Stadium in the Supporter’s Consumption: How Does the Frequency at The Stadium Boosts the Demand for the Clubs’

    Directory of Open Access Journals (Sweden)

    Fernando A. Fleury

    2014-12-01

    Full Text Available The aim of this study is to investigate the relationship between the presence of supporter in the stadium, which demonstrates the supporter’s involvement with his soccer club, and its influence on the purchase of official products of the 12 largest Brazilian brands of soccer clubs. In this research, it was collected information from 1,296 supporters who responded to a questionnaire with 22 questions. It was defined as involvement with their soccer club the frequency this supporter goes to the stadium. In order to determine the consumption relationship it were used variables such as frequency of purchase of official products, the annual amount spent on such products, favorite venue to purchase and assortment of the products mix. For the supporters buying preferences analysis, it was applied the technique of correspondence analysis (Anacor. As a result, we can point out that the supporters’ loyalty, driven by the relationship marketing, is one of the catalysts for increasing the soccer clubs revenue, since the higher the products and average tickets purchase frequency, the more this frequency is associated with a higher number of attendance to the stadium, as well as the variety in the mix of products acquired by the supporter. In this sense, the work points to the importance of building a long term relationship which goes beyond the emotional bond with the club, reaching the brand products consumption.

  6. The influence of wind direction on natural ventilation: application to a large semi-enclosed stadium

    NARCIS (Netherlands)

    Hooff, van T.A.J.; Blocken, B.J.E.

    2009-01-01

    Natural ventilation is still a commonly applied way in building engineering to ensure a healthy and comfortable indoor climate. In this paper CFD simulations of the natural ventilation of a large semi-enclosed stadium in the Netherlands during the summer are described. Simulations are performed to

  7. Baseball Stadium Design: Teaching Engineering Economics and Technical Communication in a Multi-Disciplinary Setting.

    Science.gov (United States)

    Dahm, Kevin; Newell, James

    2001-01-01

    Reports on a course at Rowan University, based on the economic design of a baseball stadium, that offers an introduction to multidisciplinary engineering design linked with formal training in technical communication. Addresses four pedagogical goals: (1) developing public speaking skills in a realistic, business setting; (2) giving students…

  8. German money for Brazilian football stadiums; Deutsche Foerderung fuer brasilianische Stadien

    Energy Technology Data Exchange (ETDEWEB)

    Costa, Cristina

    2011-07-01

    Solar energy is still a niche market in the world's fifth biggest state. According to present plants, the country intends rather to rely on hydroelectric power, bioenergy and wind power. Now, solar football stadiums for the 2014 World Cup are to get politicians and investors interested in photovoltaic conversion. They are sponsored by the KfW Entwicklungsbank and GIZ.

  9. A Spatial and Temporal Characterization of the Background Neutron Environment at the Navy and Marine Corps Memorial Stadium

    Science.gov (United States)

    2017-04-01

    Naval Academy Annapolis, MD Abstract This project utilized neutron detection near the Naval Academy football stadium in order to map and quantify...Introduction The Navy and Marine Corps Memorial Stadium is the U.S. Naval Academy’s football venue in Annapolis, Maryland, with a seating capacity of...Ziegler and H. Puchner, SER - History , Trends and Challenges A Guide for Designing with Memory ICs, San Jose: Cypress, 2004. [7] J.D. Dirk et al

  10. Do Professional Sports Franchises And Professional Sports Stadiums Have Any Effect On Employment In A City?

    OpenAIRE

    Ortiz, Mauricio

    2002-01-01

    With the increasing involvement of state and local governments in the professional sports industry over the last quarter of a century, the debate has arisen over whether the luring of a professional sports franchise or the construction of a stadium for a professional sports franchise provides any type of significant economic stimulus to a city. There are those who have engaged in this debate who believe the potential impact of these events to be significant and positive for a city. There ar...

  11. CFD optimisation of a stadium roof geometry: a qualitative study to improve the wind microenvironment

    Directory of Open Access Journals (Sweden)

    Sofotasiou Polytimi

    2017-01-01

    Full Text Available The complexity of the built environment requires the adoption of coupled techniques to predict the flow phenomena and provide optimum design solutions. In this study, coupled computational fluid dynamics (CFD and response surface methodology (RSM optimisation tools are employed to investigate the parameters that determine the wind comfort in a two-dimensional stadium model, by optimising the roof geometry. The roof height, width and length are evaluated against the flow homogeneity at the spectator terraces and the playing field area, the roof flow rate and the average interior pressure. Based on non-parametric regression analysis, both symmetric and asymmetric configurations are considered for optimisation. The optimum design solutions revealed that it is achievable to provide an improved wind environment in both playing field area and spectator terraces, giving a further insight on the interrelations of the parameters involved. Considering the limitations of conducting a two-dimensional study, the obtained results may beneficially be used as a basis for the optimisation of a complex three-dimensional stadium structure and thus become an important design guide for stadium structures.

  12. Path Dependency

    OpenAIRE

    Mark Setterfield

    2015-01-01

    Path dependency is defined, and three different specific concepts of path dependency – cumulative causation, lock in, and hysteresis – are analyzed. The relationships between path dependency and equilibrium, and path dependency and fundamental uncertainty are also discussed. Finally, a typology of dynamical systems is developed to clarify these relationships.

  13. A family of stadium-like billiards with parabolic boundaries under scaling analysis

    International Nuclear Information System (INIS)

    Livorati, Andre L P; Loskutov, Alexander; Leonel, Edson D

    2011-01-01

    Some chaotic properties of a family of stadium-like billiards with parabolic focusing components, which is described by a two-dimensional nonlinear area-preserving map, are studied. Critical values of billiard geometric parameters corresponding to a sudden change of the maximal Lyapunov exponent are found. It is shown that the maximal Lyapunov exponent obtained for chaotic orbits of this family is scaling invariant with respect to the control parameters describing the geometry of the billiard. We also show that this behavior is observed for a generic one-parameter family of mapping with the nonlinearity given by a tangent function.

  14. Stadium Coltan

    NARCIS (Netherlands)

    Wakenge, Claude Iguma

    2017-01-01

    In the Democratic Republic of Congo (DRC), the mining sector has the potential to play a pivotal role in post-conflict reconstruction (World Bank, 2008), and artisanal mining sustains the livelihoods of millions people in the country (PACT, 2010). However, in the last 15 years, minerals from this

  15. Identifying Risk Factors of Boot Procurement: A Case Study of Stadium Australia

    Directory of Open Access Journals (Sweden)

    Marcus Jefferies

    2012-11-01

    Full Text Available Private sector input into the procurement of public works and services is continuing to increase. This has partly arisen out of a requirement for infrastructure development to be undertaken at a rate that maintains and allows growth. This has become a major challange for the construction industry that cannot be met by government alone. The emergence of Build-Own-Operate-Transfer (BOOT schemes as a response to this challange provides a means for developing the infrastructure of a country without directly impacting on the governments budgetary constraints. The concepts of BOOT are without doubt extremely complex arrangements, which bring to the construction sector risks not experienced previously. Many of the infrastructure partnerships between public and private sector in the pastare yet to provide evidence of successful completion, since few of the concession periods have expired. This paper provides an identified list of risk factors to a case study of Stadium Australia. The most significant risk associated with Stadium Australia include the bidding process, the high level of public scrutiny, post-Olympic Games facility revenue and the complicated nature of the consortium structure.  

  16. Identifying Risk Factors of Boot Procurement: A Case Study of Stadium Australia

    Directory of Open Access Journals (Sweden)

    Marcus Jefferies

    2012-11-01

    Full Text Available Private sector input into the procurement of public works and services is continuing to increase. This has partly arisen out of a requirement for infrastructure development to be undertaken at a rate that maintains and allows growth. This has become a major challange for the construction industry that cannot be met by government alone. The emergence of Build-Own-Operate-Transfer (BOOT schemes as a response to this challange provides a means for developing the infrastructure of a country without directly impacting on the governments budgetary constraints. The concepts of BOOT are without doubt extremely complex arrangements, which bring to the construction sector risks not experienced previously. Many of the infrastructure partnerships between public and private sector in the pastare yet to provide evidence of successful completion, since few of the concession periods have expired. This paper provides an identified list of risk factors to a case study of Stadium Australia. The most significant risk associated with Stadium Australia include the bidding process, the high level of public scrutiny, post-Olympic Games facility revenue and the complicated nature of the consortium structure.

  17. A Study of Factors Affecting the Demand for Watching Football in Stadiums

    Directory of Open Access Journals (Sweden)

    Ehsan Javanmardi

    2011-01-01

    Full Text Available This paper is to find the factors effective on football matches watching demand in stadiums. The factors effective on the demand are divided into 4 categories; economical, environmental, appeal, and geographical / demographical factors which converted into 23 independent parameters by virtue of the device appropriate to gather related information. In this research, Iranian super league was selected as the subject of the study and We limited our study to three cities; Shiraz, Isfahan, and Tehran. Finally by virtue of estimating the regressions and estimating the Ordinary Least Square and Minitab software three equations were gained to foresee the number of the spectators. Validation of the models was conducted by lack of fit test, studies on the remnants such as Darling - Anderson test of normality, and Durbin Watson statistics for remnant independence test and the issue of their variance being fixed, and the study of lack of complex collinearity between independent variables using Variance Inflation Factor (VIF. We used step - by - step regression method and regression of all probable conditions. By virtue of the conclusions of the regression equations we found that there is a structural difference between capital and the cities and the factors creating attractions such as their recent successes, history and the quality of the teams have the most effects on the fans’ demand to attend in the stadiums.

  18. Staduim Management Information System. A Casestudy Of Dan Anyiam Stadium Owerri Nigeria

    Directory of Open Access Journals (Sweden)

    Amanze B.C

    2015-08-01

    Full Text Available ABSTRACT This paper was centered on computerized stadium information management system. It is worthy to note that the current process of information management is being operated manually and due to this procedure numerous problems are encountered especially in the management of the crowd and ticket processing. The motivation of the software is to eliminate the manual procedures in the stadium and proper auditing is carried out in ensuring that those selling the tickets are authorized personal. The objective of the system is to successfully implement the computerized procedure and to overcome the obstacle that would hinder the successful implementation of the system. Research methodology practical and objective research techniques was used to outlines the way in which research was undertaken and among other things. The new system which is the expected data provides management software and advisory services to the sports and entertainment sector the new system was designed using Microsoft visual studio 2010 Ultimate as the front end and Microsoft SQL server as the back end. This language was chosen because it is easy to read and understand. It is real time and user friendly.

  19. The Application of an Evidence-Based Clinical Nursing Path for Improving the Preoperative and Postoperative Quality of Care of Pediatric Retroperitoneal Neuroblastoma Patients: A Randomized Controlled Trial at a Tertiary Medical Institution.

    Science.gov (United States)

    Liu, Yang; Mo, Lin; Tang, Yan; Wang, Qiuhong; Huang, Xiaoyan

    A clinical nursing path (CNP) that encourages patients and their families to become actively involved in healthcare decision-making processes may improve outcomes of pediatric retroperitoneal neuroblastoma (NB) patients. The aim of this study was to evaluate the utility and value of an evidence-based CNP provided to pediatric retroperitoneal NB patients undergoing resection surgery. One hundred twenty NB cases were assigned to a control group or a CNP group. The control group was provided with standard nursing care. The CNP group was provided with nursing care in accordance with an evidence-based CNP. The utility and value of the CNP were compared with standard nursing care. Outcome measures included rates of postoperative complications, lengths of hospital stay, and cost of hospitalization, as well as preoperative and postoperative quality of care and patient satisfaction with care. The rates of postoperative complications, length of preoperative hospitalization, total length of hospital stay, and costs of hospitalization were significantly lower for patients receiving the CNP compared with the control group. Preoperative and postoperative quality of care and patient satisfaction with care were significantly higher in patients receiving the CNP compared with the control group. Adoption of a CNP for preoperative and postoperative care of pediatric retroperitoneal NB patients undergoing resection surgery improves clinical outcomes and patient satisfaction with care. A CNP can increase families' participation in a patient's recovery process, enhance nurses' understanding of the services they are providing, and improve the quality of healthcare received by patients.

  20. For a Green Stadium: Economic Feasibility of Sustainable Renewable Electricity Generation at the Jeju World Cup Venue

    Directory of Open Access Journals (Sweden)

    Eunil Park

    2016-09-01

    Full Text Available After the 2002 FIFA World Cup in South Korea and Japan, the local governments of South Korea were left in charge of several large-scale soccer stadiums. Although these governments have made significant efforts toward creating profits from the stadiums, it is proving to be too difficult for several administrations to cover their full operational, maintenance, and conservation costs. In order to overcome this problem, one of the governments, Seogwipo City, which owns Jeju World Cup Stadium (JWCS, is attempting to provide an independent renewable electricity generation system for the operation of the stadium. The current study therefore examines potential configurations of an independent renewable electricity generation system for JWCS, using HOMER software. The simulation results yield three optimal system configurations with a renewable fraction of 1.00 and relatively low values for the cost of energy ($0.405, $0.546, and $0.692 per kWh. Through the examination of these three possible optimal configurations, the implications and limitations of the current study are presented.

  1. The Moses Mabhida Medical Plan: medical care planning and execution at a FIFA2010 stadium; the Durban experience.

    Science.gov (United States)

    Hardcastle, Timothy C; Naidoo, Mergan; Samlal, Sanjay; Naidoo, Morgambery; Larsen, Timothy; Mabasu, Muzi; Ngema, Sibongiseni

    2010-01-01

    This paper aims to outline the medical services provided at the Moses Mabhida Stadium, Durban, South Africa for the Fédération Internationale de Football Association (FIFA) 2010 Soccer World Cup and audit the clinical services delivered to persons seeking medical assistance. Descriptive report of the medical facilities at the Moses Mabhida Stadium including the staff deployment. Retrospective data review of medical incident reports from the Stadium Medical Team. Medical staffing exceeded the local norms and was satisfactory to provide rapid intervention for all incoming patients. Senior medical presence decreased the transport to hospital rate (TTHR). A total of 316 spectators or support staff were treated during the seven matches played at the stadium. The majority of patients were male (60%), mostly of local origin, with mostly minor complaints that were treated and discharged (88.2% Green codes). The most common complaints were headache, abdominal disorders, and soft-tissue injuries. One fatality was recorded. The patient presentation rate (PPR) was 0.66/10,000 and the TTHR was overall 4.1% of all treated patients (0.027/10,000 spectators). There was little evidence to guide medical planning for staffing from the FIFA governing body. Most patients are treated and released in accordance with international literature, leading to low TTHR rates, while PPR was in line with international experience. Headache was the most common medical complaint. The blowing of Vuvuzelas(®) may have influenced the high headache rate.

  2. Decay of energy and suppression of Fermi acceleration in a dissipative driven stadium-like billiard.

    Science.gov (United States)

    Livorati, André L P; Caldas, Iberê L; Leonel, Edson D

    2012-06-01

    The behavior of the average energy for an ensemble of non-interacting particles is studied using scaling arguments in a dissipative time-dependent stadium-like billiard. The dynamics of the system is described by a four dimensional nonlinear mapping. The dissipation is introduced via inelastic collisions between the particles and the moving boundary. For different combinations of initial velocities and damping coefficients, the long time dynamics of the particles leads them to reach different states of final energy and to visit different attractors, which change as the dissipation is varied. The decay of the average energy of the particles, which is observed for a large range of restitution coefficients and different initial velocities, is described using scaling arguments. Since this system exhibits unlimited energy growth in the absence of dissipation, our results for the dissipative case give support to the principle that Fermi acceleration seems not to be a robust phenomenon.

  3. Sports betting marketing during sporting events: a stadium and broadcast census of Australian Football League matches.

    Science.gov (United States)

    Thomas, Samantha; Lewis, Sophie; Duong, Jenny; McLeod, Colin

    2012-04-01

    Using Australian Football League (AFL) matches as a case study, we investigated the frequency, length and content of marketing strategies for sports betting during two specific settings: 1) at stadiums during four live matches; and 2) during eight televised broadcasts of matches. Census of sports betting marketing during Round 12 of the 2011 AFL premiership season. Per match, there was an average of 58.5 episodes (median 49.5, s.d 27.8) and 341.1 minutes (median 324.1 minutes and s.d 44.5) of sports betting marketing at stadiums, and 50.5 episodes (median 53.5, s.d 45.2) and 4.8 minutes (median 5.0 minutes, s.d 4.0) during televised broadcasts. A diverse range of marketing techniques were used to: a) embed sports betting within the game; b) align sports betting with fans' overall experience of the game; and c) encourage individuals to bet live during the game. There were very few visible or audible messages (such as responsible gambling or Gambler's Help messages) to counter-frame the overwhelmingly positive messages that individuals received about sports betting during the match. This study raises important questions about the impacts of saturation, integrated and impulse gambling marketing strategies in sporting matches. Future research should explore: 1) how wagering industry marketing strategies may affect the attitudes and behaviours of community sub-groups (e.g. young male sports fans, and children); and 2) which public health and policy strategies, including regulation and harm minimisation messaging, will be effective in responding to wagering industry marketing strategies during sporting matches. © 2012 The Authors. ANZJPH © 2012 Public Health Association of Australia.

  4. Path Expressions

    Science.gov (United States)

    1975-06-01

    Traditionally, synchronization of concurrent processes is coded in line by operations on semaphores or similar objects. Path expressions move the...discussion about a variety of synchronization primitives . An analysis of their relative power is found in [3]. Path expressions do not introduce yet...another synchronization primitive . A path expression relates to such primitives as a for- or while-statement of an ALGOL-like language relates to a JUMP

  5. Knowledge concerning the nursing staff hospital-acquired infections in the prevention and transmission paths microorganisms living in the hospital environment .

    Directory of Open Access Journals (Sweden)

    Monika Teresa Pierzak

    2017-08-01

    Full Text Available Introduction: The level of knowledge in the filed of infections associated with health care is a very important element affecting the health and lives of patients and medical staff working covering the entire interdisciplinary team. In the various stages of the nursing process, which consists of diagnosis, planning, implementation and evaluation, there is the problem of hospital infections. Objectives of work: The aim of the study is to assess the level of knowledge of nursing staff in the field of hospital infections, prevention and routes of transmission of microorganisms. Material and Method: The study was conducted in the period from 01.01.2017-01.06.2017 in the Regional Hospital in Kielce. The research was voluntary and those involved agreed to participate in them. The study included 92 (100% of the nursing staff. These were women 96.65% (n = 88 and men 4.35% (n = 4. The subjects were informed about the anonymity of the research. Method was used diagnostic survey, using the author, anonymous questionnaire consisting of 26 questions, which was developed on the basis of the latest reports from scientific articles on the subject of nosocomial infections. Results: Our study showed different levels of knowledge of hospital infection among nursing staff. The respondents do not know the importance of washing hands in the prevention of nosocomial infections. Alarming is the fact that only 64.13% (n = 59 of those participating in the survey asked about the most common source of hospital-acquired infections answered that it is "direct contact, usually by hand during the performed treatments and medicines." The nursing staff involved in the study I am aware of the need for training organization to raise knowledge of hospital infections. Respondents asked about the need to provide training for the prevention of infection in the workplace 84.78% (n = 78 responded that there is such a necessity. Conclusions: The level of knowledge of nursing staff is

  6. Vascular endothelial growth factor (VEGF-C - a potent risk factor in children diagnosed with stadium 4 neuroblastoma.

    Directory of Open Access Journals (Sweden)

    Bogdan Miskowiak

    2009-01-01

    Full Text Available To evaluate the immunohistochemical expression of VEGF-C, CD34 and VEGFR-2 in cancer tissue of children diagnosed with stadium 4 neuroblastoma (NB and correlate their presence with the survival rate of children diagnosed with that stage of the disease. Eighteen children assigned to stadium 4 composed the study group. Fourteen patients (allocated to stadium 3 formed a control group. VEGF-C, CD34 and VEGFR-2 expressions were evaluated by immunohistochemical assay. Consecutive slides incubated with anti-CD34 and anti-VEGFR-2 antibodies revealed that the two markers were colocalized within endothelial layer of the blood vessels. On the other hand, VEGF-C was expressed exclusively in tumour cells. As demonstrated by Fisher's exact test, the risk of NB treatment failure (progression or relapse as well as tumour related death, when all the patients were considered, was found to be significant in VEGF-C positive patients. VEGF-C expression in NB constitutes a potent risk factor and may direct future anti-angiogenic treatment strategy. The proximity of VEGF-C and CD34/VEGFR-2 of NB could be the equivalent of a potentially interesting VEGF-C fashion involving a tumour cell invasion into the blood vessels in an early phase of metastases promoting.

  7. Effect of crowd size on patient volume at a large, multipurpose, indoor stadium.

    Science.gov (United States)

    De Lorenzo, R A; Gray, B C; Bennett, P C; Lamparella, V J

    1989-01-01

    A prediction of patient volume expected at "mass gatherings" is desirable in order to provide optimal on-site emergency medical care. While several methods of predicting patient loads have been suggested, a reliable technique has not been established. This study examines the frequency of medical emergencies at the Syracuse University Carrier Dome, a 50,500-seat indoor stadium. Patient volume and level of care at collegiate basketball and football games as well as rock concerts, over a 7-year period were examined and tabulated. This information was analyzed using simple regression and nonparametric statistical methods to determine level of correlation between crowd size and patient volume. These analyses demonstrated no statistically significant increase in patient volume for increasing crowd size for basketball and football events. There was a small but statistically significant increase in patient volume for increasing crowd size for concerts. A comparison of similar crowd size for each of the three events showed that patient frequency is greatest for concerts and smallest for basketball. The study suggests that crowd size alone has only a minor influence on patient volume at any given event. Structuring medical services based solely on expected crowd size and not considering other influences such as event type and duration may give poor results.

  8. Path Dependence

    DEFF Research Database (Denmark)

    Madsen, Mogens Ove

    Begrebet Path Dependence blev oprindelig udviklet inden for New Institutionel Economics af bl.a. David, Arthur og North. Begrebet har spredt sig vidt i samfundsvidenskaberne og undergået en udvikling. Dette paper propagerer for at der er sket så en så omfattende udvikling af begrebet, at man nu kan...... tale om 1. og 2. generation af Path Dependence begrebet. Den nyeste udvikling af begrebet har relevans for metodologi-diskusionerne i relation til Keynes...

  9. Hubungan Ekspresi NFκB dengan Respons Radiasi Kanker Serviks Stadium Lokal Lanjut

    Directory of Open Access Journals (Sweden)

    Affi A. Ratnasari

    2016-06-01

    Full Text Available Apoptosis merupakan salah satu jalur eliminasi sel kanker pada proses radiasi dan nuclear factor kappa-B (NFkB merupakan faktor transkripsi yang diduga berhubungan dengan mekanisme resistensi apoptosis suatu sel sehingga dapat memengaruhi respons pascaradiasi. Penelitian ini bertujuan untuk menilai ekspresi relatif NFkB pada kanker serviks stadium lokal lanjut dan hubungannya dengan respons radiasi. Penelitian dilakukan dengan desain kohort observasional pada bulan Januari-Oktober 2015. Jaringan biopsi pra-radiasi dari kanker serviks diperoleh dari 17 subjek dan biopsi mid-radiasi didapatkan dari 10 subjek. mRNA NFkB diekstraksi dan dianalisis menggunakan qRT-PCR. Ekspresi relatif NFkB diuji terhadap hubungannya dengan respons radiasi. Hasil penelitian menunjukkan median ekspresi relatif NFkB pra-radiasi pada kelompok subyek dengan respons negatif (0,667; SD 0,413 lebih tinggi daripada kelompok respons positif (0,315; SD 160,298, namun tidak terdapat hubungan dengan respons pascaradiasi (p=0,578. Terdapat hubungan antara perubahan ekspresi NFkB midterapi dibandingkan praterapi terhadap respons radiasi (p=0,035; RR 0,33. Disimpulkan bahwa penurunan ekspresi NFkB mid-radiasi dapat berperan dalam meningkatkan respons pascaradiasi. Kata kunci: NFkB, respons radioterapi, kanker serviks stadium lanjut lokal Expression of NFkB in Locally Advanced Cervical Cancer and Its Relation to Radiotherapy Response Abstract One of the expected elimination pathways of cancer cells in the process of radiation is apoptosis. Nuclear factor kappa-B (NFkB is a transcription factor related to the mechanism of apoptosis resistance of a cell, which can affect the post-radiation response. The aim of this study is to assess the relative expression of NFkB in locally advanced cervical cancer and its relation to radiotherapy response. The study was conducted with observational cohort design on January-October 2015. Pre-radiotherapy cervical biopsy specimen was collected from

  10. Path Creation

    DEFF Research Database (Denmark)

    Karnøe, Peter; Garud, Raghu

    2012-01-01

    This paper employs path creation as a lens to follow the emergence of the Danish wind turbine cluster. Supplier competencies, regulations, user preferences and a market for wind power did not pre-exist; all had to emerge in a tranformative manner involving multiple actors and artefacts. Competenc......This paper employs path creation as a lens to follow the emergence of the Danish wind turbine cluster. Supplier competencies, regulations, user preferences and a market for wind power did not pre-exist; all had to emerge in a tranformative manner involving multiple actors and artefacts....... Competencies emerged through processes and mechanisms such as co-creation that implicated multiple learning processes. The process was not an orderly linear one as emergent contingencies influenced the learning processes. An implication is that public policy to catalyse clusters cannot be based...

  11. The Moses Mabhida Medical Plan: medical care planning and execution at a FIFA2010 stadium; the Durban experience

    Directory of Open Access Journals (Sweden)

    Timothy C Hardcastle

    2010-12-01

    Full Text Available Timothy C Hardcastle1,2, Mergan Naidoo3,4, Sanjay Samlal5,6, Morgambery Naidoo5,6, Timothy Larsen5,6, Muzi Mabasu5,6,7, Sibongiseni Ngema6,81Inkosi Albert Luthuli Hospital, Mayville, South Africa; 2Department of Surgery, University of KwaZulu-Natal, Durban, South Africa; 3Wentworth Hospital, Durban, South Africa; 4Department of Family Medicine, University of KwaZulu-Natal, Durban, South Africa; 5Emergency Medical Rescue Service, KwaZulu-Natal, South Africa; 6Department of Health, KwaZulu-Natal, South Africa; 7EMRS 2010 Planning Committee, KwaZulu-Natal, South Africa; 8School of Public Administration and Development Management, University of KwaZulu-Natal, Durban, South AfricaAim: This paper aims to outline the medical services provided at the Moses Mabhida Stadium, Durban, South Africa for the Fédération Internationale de Football Association (FIFA 2010 Soccer World Cup and audit the clinical services delivered to persons seeking medical assistance.Methods: Descriptive report of the medical facilities at the Moses Mabhida Stadium including the staff deployment. Retrospective data review of medical incident reports from the Stadium Medical Team.Results: Medical staffing exceeded the local norms and was satisfactory to provide rapid intervention for all incoming patients. Senior medical presence decreased the transport to hospital rate (TTHR. A total of 316 spectators or support staff were treated during the seven matches played at the stadium. The majority of patients were male (60%, mostly of local origin, with mostly minor complaints that were treated and discharged (88.2% Green codes. The most common complaints were headache, abdominal disorders, and soft-tissue injuries. One fatality was recorded. The patient presentation rate (PPR was 0.66/10,000 and the TTHR was overall 4.1% of all treated patients (0.027/10,000 spectators.Conclusion: There was little evidence to guide medical planning for staffing from the FIFA governing body. Most

  12. Intra-system reliability of SICS: video-tracking system (Digital.Stadium®) for performance analysis in football.

    Science.gov (United States)

    Beato, Marco; Jamil, Mikael

    2017-05-09

    The correct evaluation of external load parameters is a key factor in professional football. The instrumentations usually utilised to quantify the external load parameters during official matches are Video-Tracking Systems (VTS). VTS is a technology that records two- dimensional position data (x and y) at high sampling rates (over 25 Hz). The aim of this study was to evaluate the intra-system reliability of Digital.Stadium® VTS. 28 professional male football players taking part in the Italian Serie A (age 24 ± 6 years, body mass 79.5 ± 7.8 kg, stature 1.83 ± 0.05 m) during the 2015/16 season were enrolled in this study (Team A and Team B). Video-analysis was done during an official match and data analysis was performed immediately after the game ended and then replicated a week later. This study reported a near perfect relationship between the initial analysis (analysis 1) and the replicated analysis undertaken a week later (analysis 2). R2 coefficients were highly significant for each of the performance parameters, p power of 9.65 ± 1.64 w kg-1 and 9.58 ± 1.61 w kg-1, in analysis 1 and analysis 2, respectively. The findings reported in this study underlined that all data reported by Digital.Stadium® VTS showed high levels of absolute and relative reliability.

  13. Air pollutant dispersion from a large semi-enclosed stadium in an urban area: high-resolution CFD modeling versus full-scale measurements

    NARCIS (Netherlands)

    Hooff, van T.A.J.; Blocken, B.J.E.; Seppelt, R.; Voinov, A.A.; Lange, S.; Bankamp, D.

    2012-01-01

    Abstract: High-resolution CFD simulations and full-scale measurements have been performed to assess the dispersion of air pollutants (CO2) from the large semi-enclosed Amsterdam ArenA football stadium. The dispersion process is driven by natural ventilation by the urban wind flow and by buoyancy,

  14. The experience of some European Countries in the implementation of preventive measures against the phenomenon of violence and aggression at football stadiums

    Directory of Open Access Journals (Sweden)

    Samuel Uhrin

    2013-12-01

    Full Text Available The article sets forward the experience of the Slovak Republic in the field of prevention of violence and aggression in football stadiums. The text discusses initiatives aiming at dimnishing this alarming and increasing in size phenomenon. The experiences stemming from preventive measures which have been taken in this regard in other European countries, have also been brought closer in the text.

  15. A career path in clinical pathways.

    Science.gov (United States)

    Bower, K A

    1998-03-01

    Much like the development of a clinical path, the creation of a career path requires knowledge of patterns of behavior, needs for standardized education and skill development, along with variance analysis and individualized care. This nationally known nursing entrepreneur tells the story of her involvement in the development of case management and clinical pathways and how she turned that into a successful business that has changed how patient care is managed nationally and internationally.

  16. Investigación de Resultados en Enfermería: El camino hacia la efectividad de los cuidados Outcomes Research and Nursing: the Path to Effectiveness in Nursing Care

    Directory of Open Access Journals (Sweden)

    José Miguel Morales Asencio

    2004-06-01

    Full Text Available Existe un interés máximo sobre los modos en que los distintos Estados pueden dar respuesta a la creciente demanda de servicios de salud por parte de la población. Fenómenos como el envejecimiento poblacional, el aumento de la dependencia, la cronicidad de los procesos y la inflación de expectativas en la ciudadanía, obligan, ante la presencia de recursos limitados, a dilucidar con mayor precisión qué intervenciones sanitarias realmente producen resultados en la población. Se desprende de ello, toda una corriente de investigación de resultados en Salud que intenta dar respuesta a esta pregunta, no exenta de dificultades metodológicas importantes: ¿cómo medir resultados en salud?, ¿con arreglo a parámetros clínicos?, ¿a través de la perspectiva de los ciudadanos (calidad de vida, satisfacción.?, ¿en función del coste que conlleva la consecución de los mismos.? A todo ello, hay que añadir la creciente variabilidad de la práctica clínica de los profesionales, que incide directamente en la homogeneidad de los resultados. Para determinar de quiénes dependen los resultados, el enfoque exclusivamente centrado en parámetros biomédicos no tiene suficiente poder explicativo. Una parte importante de éstos, van a estar influenciados por las respuestas humanas a la situación de salud, motivo por el cual, desde hace algunos años se acuña el concepto de resultados sensibles a la práctica enfermera. A lo largo del artículo se exponen los intentos que la ciencia de los cuidados ha intentado ofrecer a este desafío y el estado actual de desarrollo, tras la incorporación de la Nursing Outcomes Classification, así como las vías de crecimiento que este tipo de investigación requiere a corto plazo.There is a highlighted interest about the way in which the countries can give an effective response to the raising health care demand. Phenomena as the aging of the population, the raising dependency, cronicity of diseases and the

  17. Path Creation, Path Dependence and Breaking Away from the Path

    OpenAIRE

    Wang, Jens; Hedman, Jonas; Tuunainen, Virpi Kristiina

    2016-01-01

    The explanation of how and why firms succeed or fail is a recurrent research challenge. This is particularly important in the context of technological innovations. We focus on the role of historical events and decisions in explaining such success and failure. Using a case study of Nokia, we develop and extend a multi-layer path dependence framework. We identify four layers of path dependence: technical, strategic and leadership, organizational, and external collaboration. We show how path dep...

  18. Feynman's path integrals and Bohm's particle paths

    International Nuclear Information System (INIS)

    Tumulka, Roderich

    2005-01-01

    Both Bohmian mechanics, a version of quantum mechanics with trajectories, and Feynman's path integral formalism have something to do with particle paths in space and time. The question thus arises how the two ideas relate to each other. In short, the answer is, path integrals provide a re-formulation of Schroedinger's equation, which is half of the defining equations of Bohmian mechanics. I try to give a clear and concise description of the various aspects of the situation. (letters and comments)

  19. Path coupling and aggregate path coupling

    CERN Document Server

    Kovchegov, Yevgeniy

    2018-01-01

    This book describes and characterizes an extension to the classical path coupling method applied to statistical mechanical models, referred to as aggregate path coupling. In conjunction with large deviations estimates, the aggregate path coupling method is used to prove rapid mixing of Glauber dynamics for a large class of statistical mechanical models, including models that exhibit discontinuous phase transitions which have traditionally been more difficult to analyze rigorously. The book shows how the parameter regions for rapid mixing for several classes of statistical mechanical models are derived using the aggregate path coupling method.

  20. One-Year Monitoring PV Power Plant Installed on Rooftop of Mineirão Fifa World Cup/Olympics Football Stadium

    Directory of Open Access Journals (Sweden)

    Luís G. Monteiro

    2017-02-01

    Full Text Available This paper presents results of one-year monitoring of AC side electrical parameters and the characterization of local solar radiation at the biggest rooftop PV Power Plant, with an installed capacity of 1.42 MWp, mounted at Mineirão Football Stadium in Brazil. This stadium is one of the sport facilities that hosted 2014 FIFA World Cup and Rio 2016 Summer Olympics Games in the country. Results showed how it is important to study and characterize the solar resource in the region of interest, based on historic data, to provide the understanding of solar radiation and thus project PV power plants with better performance. Furthermore, AC electrical data show the behavior of active, reactive and apparent powers and the influence of the PV system on the power factor at the local grid utility connection point. Finally, PV power plant performance data (as annual final yield, performance ratio and capacity factor are also presented and compared with data from PVsyst software simulations. The results over the monitoring period were good considering the specificities of the stadium

  1. ERGONOMICS AND RISC IN NURSING CARE PATH

    Directory of Open Access Journals (Sweden)

    Joanir Pereira Passos

    2011-04-01

    Full Text Available Introdução: Este estudo tem como foco a relação saúde-doença-trabalho. Apresenta como objeto de investigação o caminho da enfermagem para o descarte da urina no cuidado ao cliente.  Os objetivos foram identificar quantos metros a enfermagem caminha para fazer este único procedimento – despejar a urina – e, discutir as implicações para saúde do corpo que cuida. Método: Estudo exploratório. O local da investigação foi um hospital público / filantrópico no Rio de Janeiro para pessoas com deficiência física. A produção dos dados ocorreu mediante mensuração do caminho andado e de quantas vezes este percurso aconteceu durante trinta dias. Resultados: Verificou-se que dois técnicos de enfermagem andam 132 km e 720 m para despejar a urina, contribuindo para agravos, como problemas mecânicos e corporais, associado à inadequação da planta física do ambiente de trabalho. Discussão: A aplicação da ergonomia permite reorganizar o processo de trabalho de enfermagem propondo modos de execução mais adequados. Considerações Finais: Faz-se importante reconhecer a relação saúde – ambiente – trabalho, nas dimensões individuais e coletivas. Descritores: Cuidados de Enfermagem; Saúde do trabalhador; Ambiente de trabalho.

  2. Parallel paths to improve heart failure outcomes

    DEFF Research Database (Denmark)

    Albert, Nancy M.

    2013-01-01

    -based, heart failure guidelines improves clinical outcomes. Thus, nurses and patients are on parallel paths related to setting the foundation for improved self-care adherence in advanced heart failure. Through research, we found that nurses were not adequately prepared as heart failure educators...... and that patients did not believe they were able to control heart failure. In 2 educational intervention studies that aimed to help patients understand that they could control fluid management and follow a strict daily fluid limit, patients had improved clinical outcomes. Thus, misperceptions about heart failure......Gaps and disparities in delivery of heart failure education by nurses and performance in accomplishing self-care behaviors by patients with advanced heart failure may be factors in clinical decompensation and unplanned consumption of health care. Is nurse-led education effectively delivered before...

  3. Spondylolysis in adolescents: the diagnostic value of MRI; Die Spondylolyse im Stadium der Entstehung: Diagnostischer Beitrag der MRT

    Energy Technology Data Exchange (ETDEWEB)

    Staebler, A.; Steinborn, M.; Matzko, M.; Reiser, M. [Klinikum Grosshadern, Muenchen (Germany). Inst. fuer Radiologische Diagnostik; Paulus, R.; Bosch, R. [Muenchen Univ. (Germany). Orthopaedische Klinik

    2000-01-01

    Purpose: To assess the value of MR imaging in demonstrating ongoing spondylolysis in adolescents. Methods: MRI was performed in 9 juvenile patients (3 female, 6 male aged 8-16 years; mean 12.5 y) with pain during hyperextension. In 6 patients a CT scan and in 5 a plain film was available. Results: In all patients bone marrow edema was found in the pars interarticularis and the pedicle, which was bilateral in 4 patients. In 7/9 cases the L5 vertebra was affected, in 2/9 cases spondylolysis was found in L4. In 3 cases the edema reached the middle third of the vertebral body and a tumor was suspected. In all CT scans a bilateral incomplete or complete cleft in the pars interarticularis was found. In 4/6 CT-scans a sclerosis was seen in the area of the bone marrow edema. Only in 1/5 pain films was there a suspicion for a spondylolysis, four examinations were completely normal. Conclusions: To eliminate underlying causal conditions of spondylolysis and to install specific therapy, early diagnosis is mandatory. MR imaging should be the first and only imaging modality in young patients with low back pain during and after exercise and pain with hyperextension. Bone scans and CT scans should be avoided due to irradiation, plain films usually do not reveal pathological findings in developing spondylolysis. (orig.) [German] Ziel: Darstellung der Wertigkeit der MR-Tomographie in der Diagnostik der Spondylolyse im Stadium der Entstehung. Methoden: 9 sportlich, aktive jugendliche Patienten im Alter von 8-16 Jahren (Durchschnitt 12,5 Jahre) mit Rueckenschmerzen bei der Hyperextension wurden MR-tomographisch untersucht. In 6 Faellen lag eine CT, in 5 Faellen Roentgenaufnahmen vor. Ergebnisse: Bei den 9 Jugendlichen wurden Knochenmarkoedeme in der Pars interarticularis und den Bogenwurzeln nachgewiesen, die in 4 Patienten beidseitig vorhanden waren. In 7/9 Faellen war LWK 5 betroffen, in 2/9 LWK 4. In 3 Faellen reichte das Oedem in die Wirbelkoerper, bei 2 Patienten bestand

  4. Fractional path planning and path tracking

    International Nuclear Information System (INIS)

    Melchior, P.; Jallouli-Khlif, R.; Metoui, B.

    2011-01-01

    This paper presents the main results of the application of fractional approach in path planning and path tracking. A new robust path planning design for mobile robot was studied in dynamic environment. The normalized attractive force applied to the robot is based on a fictitious fractional attractive potential. This method allows to obtain robust path planning despite robot mass variation. The danger level of each obstacles is characterized by the fractional order of the repulsive potential of the obstacles. Under these conditions, the robot dynamic behavior was studied by analyzing its X - Y path planning with dynamic target or dynamic obstacles. The case of simultaneously mobile obstacles and target is also considered. The influence of the robot mass variation is studied and the robustness analysis of the obtained path shows the robustness improvement due to the non integer order properties. Pre shaping approach is used to reduce system vibration in motion control. Desired systems inputs are altered so that the system finishes the requested move without residual vibration. This technique, developed by N.C. Singer and W.P.Seering, is used for flexible structure control, particularly in the aerospace field. In a previous work, this method was extended for explicit fractional derivative systems and applied to second generation CRONE control, the robustness was also studied. CRONE (the French acronym of C ommande Robuste d'Ordre Non Entier ) control system design is a frequency-domain based methodology using complex fractional integration.

  5. Path-dependent functions

    International Nuclear Information System (INIS)

    Khrapko, R.I.

    1985-01-01

    A uniform description of various path-dependent functions is presented with the help of expansion of the type of the Taylor series. So called ''path-integrals'' and ''path-tensor'' are introduced which are systems of many-component quantities whose values are defined for arbitrary paths in coordinated region of space in such a way that they contain a complete information on the path. These constructions are considered as elementary path-dependent functions and are used instead of power monomials in the usual Taylor series. Coefficients of such an expansion are interpreted as partial derivatives dependent on the order of the differentiations or else as nonstandard cavariant derivatives called two-point derivatives. Some examples of pathdependent functions are presented.Space curvature tensor is considered whose geometrica properties are determined by the (non-transitive) translator of parallel transport of a general type. Covariant operation leading to the ''extension'' of tensor fiels is pointed out

  6. Iterated Leavitt Path Algebras

    International Nuclear Information System (INIS)

    Hazrat, R.

    2009-11-01

    Leavitt path algebras associate to directed graphs a Z-graded algebra and in their simplest form recover the Leavitt algebras L(1,k). In this note, we introduce iterated Leavitt path algebras associated to directed weighted graphs which have natural ± Z grading and in their simplest form recover the Leavitt algebras L(n,k). We also characterize Leavitt path algebras which are strongly graded. (author)

  7. Pulled Motzkin paths

    Energy Technology Data Exchange (ETDEWEB)

    Janse van Rensburg, E J, E-mail: rensburg@yorku.c [Department of Mathematics and Statistics, York University, Toronto, ON, M3J 1P3 (Canada)

    2010-08-20

    In this paper the models of pulled Dyck paths in Janse van Rensburg (2010 J. Phys. A: Math. Theor. 43 215001) are generalized to pulled Motzkin path models. The generating functions of pulled Motzkin paths are determined in terms of series over trinomial coefficients and the elastic response of a Motzkin path pulled at its endpoint (see Orlandini and Whittington (2004 J. Phys. A: Math. Gen. 37 5305-14)) is shown to be R(f) = 0 for forces pushing the endpoint toward the adsorbing line and R(f) = f(1 + 2cosh f))/(2sinh f) {yields} f as f {yields} {infinity}, for forces pulling the path away from the X-axis. In addition, the elastic response of a Motzkin path pulled at its midpoint is shown to be R(f) = 0 for forces pushing the midpoint toward the adsorbing line and R(f) = f(1 + 2cosh (f/2))/sinh (f/2) {yields} 2f as f {yields} {infinity}, for forces pulling the path away from the X-axis. Formal combinatorial identities arising from pulled Motzkin path models are also presented. These identities are the generalization of combinatorial identities obtained in directed paths models to their natural trinomial counterparts.

  8. Pulled Motzkin paths

    Science.gov (United States)

    Janse van Rensburg, E. J.

    2010-08-01

    In this paper the models of pulled Dyck paths in Janse van Rensburg (2010 J. Phys. A: Math. Theor. 43 215001) are generalized to pulled Motzkin path models. The generating functions of pulled Motzkin paths are determined in terms of series over trinomial coefficients and the elastic response of a Motzkin path pulled at its endpoint (see Orlandini and Whittington (2004 J. Phys. A: Math. Gen. 37 5305-14)) is shown to be R(f) = 0 for forces pushing the endpoint toward the adsorbing line and R(f) = f(1 + 2cosh f))/(2sinh f) → f as f → ∞, for forces pulling the path away from the X-axis. In addition, the elastic response of a Motzkin path pulled at its midpoint is shown to be R(f) = 0 for forces pushing the midpoint toward the adsorbing line and R(f) = f(1 + 2cosh (f/2))/sinh (f/2) → 2f as f → ∞, for forces pulling the path away from the X-axis. Formal combinatorial identities arising from pulled Motzkin path models are also presented. These identities are the generalization of combinatorial identities obtained in directed paths models to their natural trinomial counterparts.

  9. Pulled Motzkin paths

    International Nuclear Information System (INIS)

    Janse van Rensburg, E J

    2010-01-01

    In this paper the models of pulled Dyck paths in Janse van Rensburg (2010 J. Phys. A: Math. Theor. 43 215001) are generalized to pulled Motzkin path models. The generating functions of pulled Motzkin paths are determined in terms of series over trinomial coefficients and the elastic response of a Motzkin path pulled at its endpoint (see Orlandini and Whittington (2004 J. Phys. A: Math. Gen. 37 5305-14)) is shown to be R(f) = 0 for forces pushing the endpoint toward the adsorbing line and R(f) = f(1 + 2cosh f))/(2sinh f) → f as f → ∞, for forces pulling the path away from the X-axis. In addition, the elastic response of a Motzkin path pulled at its midpoint is shown to be R(f) = 0 for forces pushing the midpoint toward the adsorbing line and R(f) = f(1 + 2cosh (f/2))/sinh (f/2) → 2f as f → ∞, for forces pulling the path away from the X-axis. Formal combinatorial identities arising from pulled Motzkin path models are also presented. These identities are the generalization of combinatorial identities obtained in directed paths models to their natural trinomial counterparts.

  10. Multi-Dimensional Path Queries

    DEFF Research Database (Denmark)

    Bækgaard, Lars

    1998-01-01

    to create nested path structures. We present an SQL-like query language that is based on path expressions and we show how to use it to express multi-dimensional path queries that are suited for advanced data analysis in decision support environments like data warehousing environments......We present the path-relationship model that supports multi-dimensional data modeling and querying. A path-relationship database is composed of sets of paths and sets of relationships. A path is a sequence of related elements (atoms, paths, and sets of paths). A relationship is a binary path...

  11. Unique Path Partitions

    DEFF Research Database (Denmark)

    Bessenrodt, Christine; Olsson, Jørn Børling; Sellers, James A.

    2013-01-01

    We give a complete classification of the unique path partitions and study congruence properties of the function which enumerates such partitions.......We give a complete classification of the unique path partitions and study congruence properties of the function which enumerates such partitions....

  12. Hamiltonian path integrals

    International Nuclear Information System (INIS)

    Prokhorov, L.V.

    1982-01-01

    The properties of path integrals associated with the allowance for nonstandard terms reflecting the operator nature of the canonical variables are considered. Rules for treating such terms (''equivalence rules'') are formulated. Problems with a boundary, the behavior of path integrals under canonical transformations, and the problem of quantization of dynamical systems with constraints are considered in the framework of the method

  13. Path integration quantization

    International Nuclear Information System (INIS)

    DeWitt-Morette, C.

    1983-01-01

    Much is expected of path integration as a quantization procedure. Much more is possible if one recognizes that path integration is at the crossroad of stochastic and differential calculus and uses the full power of both stochastic and differential calculus in setting up and computing path integrals. In contrast to differential calculus, stochastic calculus has only comparatively recently become an instrument of thought. It has nevertheless already been used in a variety of challenging problems, for instance in the quantization problem. The author presents some applications of the stochastic scheme. (Auth.)

  14. Two dimensional simplicial paths

    International Nuclear Information System (INIS)

    Piso, M.I.

    1994-07-01

    Paths on the R 3 real Euclidean manifold are defined as 2-dimensional simplicial strips which are orbits of the action of a discrete one-parameter group. It is proven that there exists at least one embedding of R 3 in the free Z-module generated by S 2 (x 0 ). The speed is defined as the simplicial derivative of the path. If mass is attached to the simplex, the free Lagrangian is proportional to the width of the path. In the continuum limit, the relativistic form of the Lagrangian is recovered. (author). 7 refs

  15. Zero-Slack, Noncritical Paths

    Science.gov (United States)

    Simons, Jacob V., Jr.

    2017-01-01

    The critical path method/program evaluation and review technique method of project scheduling is based on the importance of managing a project's critical path(s). Although a critical path is the longest path through a network, its location in large projects is facilitated by the computation of activity slack. However, logical fallacies in…

  16. Groebner Finite Path Algebras

    OpenAIRE

    Leamer, Micah J.

    2004-01-01

    Let K be a field and Q a finite directed multi-graph. In this paper I classify all path algebras KQ and admissible orders with the property that all of their finitely generated ideals have finite Groebner bases. MS

  17. A Cautionary Analysis of a Billion Dollar Athletic Expenditure: The History of the Renovation of California Memorial Stadium and the Construction of the Barclay Simpson Student Athlete High Performance Center. Research & Occasional Paper Series: CSHE.3.17

    Science.gov (United States)

    Cummins, John

    2017-01-01

    This paper is a description and analysis of the history of the renovation of Memorial Stadium and the building of the Barclay Simpson Student Athlete High Performance Center (SAHPC) on the Berkeley campus, showing how incremental changes over time result in a much riskier and financially less viable project than originally anticipated. It…

  18. Path planning in changeable environments

    NARCIS (Netherlands)

    Nieuwenhuisen, D.

    2007-01-01

    This thesis addresses path planning in changeable environments. In contrast to traditional path planning that deals with static environments, in changeable environments objects are allowed to change their configurations over time. In many cases, path planning algorithms must facilitate quick

  19. Quivers of Bound Path Algebras and Bound Path Coalgebras

    Directory of Open Access Journals (Sweden)

    Dr. Intan Muchtadi

    2010-09-01

    Full Text Available bras and coalgebras can be represented as quiver (directed graph, and from quiver we can construct algebras and coalgebras called path algebras and path coalgebras. In this paper we show that the quiver of a bound path coalgebra (resp. algebra is the dual quiver of its bound path algebra (resp. coalgebra.

  20. Paths correlation matrix.

    Science.gov (United States)

    Qian, Weixian; Zhou, Xiaojun; Lu, Yingcheng; Xu, Jiang

    2015-09-15

    Both the Jones and Mueller matrices encounter difficulties when physically modeling mixed materials or rough surfaces due to the complexity of light-matter interactions. To address these issues, we derived a matrix called the paths correlation matrix (PCM), which is a probabilistic mixture of Jones matrices of every light propagation path. Because PCM is related to actual light propagation paths, it is well suited for physical modeling. Experiments were performed, and the reflection PCM of a mixture of polypropylene and graphite was measured. The PCM of the mixed sample was accurately decomposed into pure polypropylene's single reflection, pure graphite's single reflection, and depolarization caused by multiple reflections, which is consistent with the theoretical derivation. Reflection parameters of rough surface can be calculated from PCM decomposition, and the results fit well with the theoretical calculations provided by the Fresnel equations. These theoretical and experimental analyses verify that PCM is an efficient way to physically model light-matter interactions.

  1. Leavitt path algebras

    CERN Document Server

    Abrams, Gene; Siles Molina, Mercedes

    2017-01-01

    This book offers a comprehensive introduction by three of the leading experts in the field, collecting fundamental results and open problems in a single volume. Since Leavitt path algebras were first defined in 2005, interest in these algebras has grown substantially, with ring theorists as well as researchers working in graph C*-algebras, group theory and symbolic dynamics attracted to the topic. Providing a historical perspective on the subject, the authors review existing arguments, establish new results, and outline the major themes and ring-theoretic concepts, such as the ideal structure, Z-grading and the close link between Leavitt path algebras and graph C*-algebras. The book also presents key lines of current research, including the Algebraic Kirchberg Phillips Question, various additional classification questions, and connections to noncommutative algebraic geometry. Leavitt Path Algebras will appeal to graduate students and researchers working in the field and related areas, such as C*-algebras and...

  2. The Thinnest Path Problem

    Science.gov (United States)

    2016-07-22

    be reduced to TP in -D UDH for any . We then show that the 2-D disk hypergraph constructed in the proof of Theorem 1 can be modified to an exposed...transmission range that induces hy- peredge , i.e., (3) GAO et al.: THINNEST PATH PROBLEM 1181 Theorem 5 shows that the covered area of the path...representation of (the two hyperedges rooted at from the example given in Fig. 6 are illustrated in green and blue, respectively). step, we show in this

  3. Path dependence and creation

    DEFF Research Database (Denmark)

    Garud, Raghu; Karnøe, Peter

    This edited volume stems from a conference held in Copenhagen that the authors ran in August of 1997. The authors, aware of the recent work in evolutionary theory and the science of chaos and complexity, challenge the sometimes deterministic flavour of this work. They are interested in uncovering...... the place of agency in these theories that take history so seriously. In the end, they are as interested in path creation and destruction as they are in path dependence. This book is compiled of both theoretical and empirical writing. It shows relatively well-known industries such as the automobile...

  4. Reparametrization in the path integral

    International Nuclear Information System (INIS)

    Storchak, S.N.

    1983-01-01

    The question of the invariance of a measure in the n-dimensional path integral under the path reparametrization is considered. The non-invariance of the measure through the jacobian is suggeste. After the path integral reparametrization the representatioq for the Green's function of the Hamilton operator in terms of the path integral with the classical Hamiltonian has been obtained

  5. MEASURING PATH DEPENDENCY

    Directory of Open Access Journals (Sweden)

    Peter Juhasz

    2017-03-01

    Full Text Available While risk management gained popularity during the last decades even some of the basic risk types are still far out of focus. One of these is path dependency that refers to the uncertainty of how we reach a certain level of total performance over time. While decision makers are careful in accessing how their position will look like the end of certain periods, little attention is given how they will get there through the period. The uncertainty of how a process will develop across a shorter period of time is often “eliminated” by simply choosing a longer planning time interval, what makes path dependency is one of the most often overlooked business risk types. After reviewing the origin of the problem we propose and compare seven risk measures to access path. Traditional risk measures like standard deviation of sub period cash flows fail to capture this risk type. We conclude that in most cases considering the distribution of the expected cash flow effect caused by the path dependency may offer the best method, but we may need to use several measures at the same time to include all the optimisation limits of the given firm

  6. Nursing, Nursing Education, and Anxiety.

    Science.gov (United States)

    Biggers, Thompson; And Others

    In response to the current crisis in the field of nursing, a study examined nursing students' perceived work-related stress and differences among associate degree, diploma, and baccalaureate nursing programs in their preparation of nursing students. The 171 subjects, representing the three different nursing programs, completed a questionnaire…

  7. Nonadiabatic transition path sampling

    International Nuclear Information System (INIS)

    Sherman, M. C.; Corcelli, S. A.

    2016-01-01

    Fewest-switches surface hopping (FSSH) is combined with transition path sampling (TPS) to produce a new method called nonadiabatic path sampling (NAPS). The NAPS method is validated on a model electron transfer system coupled to a Langevin bath. Numerically exact rate constants are computed using the reactive flux (RF) method over a broad range of solvent frictions that span from the energy diffusion (low friction) regime to the spatial diffusion (high friction) regime. The NAPS method is shown to quantitatively reproduce the RF benchmark rate constants over the full range of solvent friction. Integrating FSSH within the TPS framework expands the applicability of both approaches and creates a new method that will be helpful in determining detailed mechanisms for nonadiabatic reactions in the condensed-phase.

  8. Tendências gerenciais que podem levar a enfermagem a percorrer novos caminhos Tendencias gerenciales que pueden llevar a la enfermería a recorrer nuevos caminos Management trends that may lead nursing to new paths

    Directory of Open Access Journals (Sweden)

    Ana Maria Muller Magalhães

    2004-08-01

    organizations. In the area of services, healthcare and nursing organizations have suffered the impact of these changes within their work processes. Our goal was to reflect on the new management trends and how they could influence the nursing work organization in healthcare services and the actions by managing nurses in strategies that meet the challenges of the profession in a changing social context. These new trends have pointed to the emphasis on the development or learning organizations, investment on human capital, inclusion of new knowledge and skills, searching for an open, flexible and participatory administrative practice, based on reason, creativity, sensitivity and intuition.

  9. Understanding the Essence of Caring from the Lived Experiences of Filipino Informatics Nurses.

    Science.gov (United States)

    Macabasag, Romeo Luis A; Diño, Michael Joseph S

    2018-04-01

    Caring is considered a unique concept in nursing because it subsumes all intrinsic attributes of nursing as a human helping discipline. Scholars have argued that caring is usually seen as an encounter between nurses and patients, but how about nurses with minimal or absent nurse-patient encounters, like informatics nurses? In this study, we explored the meaning of the phenomenon of caring to present lived experiences of caring, namely caring as actions of coming in between; caring as expressed within embodied relations; and caring and the path traversed by informatics nurses. The informatics nurse-cyborg-patient triad speaks of Filipino informatics nurses' insightful understanding of the phenomenon of caring.

  10. PATHS groundwater hydrologic model

    Energy Technology Data Exchange (ETDEWEB)

    Nelson, R.W.; Schur, J.A.

    1980-04-01

    A preliminary evaluation capability for two-dimensional groundwater pollution problems was developed as part of the Transport Modeling Task for the Waste Isolation Safety Assessment Program (WISAP). Our approach was to use the data limitations as a guide in setting the level of modeling detail. PATHS Groundwater Hydrologic Model is the first level (simplest) idealized hybrid analytical/numerical model for two-dimensional, saturated groundwater flow and single component transport; homogeneous geology. This document consists of the description of the PATHS groundwater hydrologic model. The preliminary evaluation capability prepared for WISAP, including the enhancements that were made because of the authors' experience using the earlier capability is described. Appendixes A through D supplement the report as follows: complete derivations of the background equations are provided in Appendix A. Appendix B is a comprehensive set of instructions for users of PATHS. It is written for users who have little or no experience with computers. Appendix C is for the programmer. It contains information on how input parameters are passed between programs in the system. It also contains program listings and test case listing. Appendix D is a definition of terms.

  11. Priorities for the professional development of registered nurses in nursing homes: a Delphi study.

    Science.gov (United States)

    Cooper, Emily; Spilsbury, Karen; McCaughan, Dorothy; Thompson, Carl; Butterworth, Tony; Hanratty, Barbara

    2017-01-08

    To establish a consensus on the care and professional development needs of registered nurses (RNs) employed by UK care homes. Two-stage, online modified Delphi study. A panel (n = 352) of individuals with experience, expertise or interest in care home nursing: (i) care home nurses and managers; (ii) community healthcare professionals (including general practitioners, geriatricians, specialist and district nurses); and (iii) nurse educators in higher education. RNs employed by nursing homes require particular skills, knowledge, competence and experience to provide high-quality care for older residents. The most important responsibilities for the nursing home nurse were: promoting dignity, personhood and wellbeing, ensuring resident safety and enhancing quality of life. Continuing professional development priorities included personal care, dementia care and managing long-term conditions. The main barrier to professional development was staff shortages. Nursing degree programmes were perceived as inadequately preparing nurses for a nursing home role. Nursing homes could improve by providing supportive learning opportunities for students and fostering challenging and rewarding careers for newly RNs. If nurses employed by nursing homes are not fit for purpose, the consequences for the wider health and social-care system are significant. Nursing homes, the NHS, educational and local authorities need to work together to provide challenging and rewarding career paths for RNs and evaluate them. Without well-trained, motivated staff, a high-quality care sector will remain merely an aspiration.

  12. Shortest Paths and Vehicle Routing

    DEFF Research Database (Denmark)

    Petersen, Bjørn

    This thesis presents how to parallelize a shortest path labeling algorithm. It is shown how to handle Chvátal-Gomory rank-1 cuts in a column generation context. A Branch-and-Cut algorithm is given for the Elementary Shortest Paths Problem with Capacity Constraint. A reformulation of the Vehicle...... Routing Problem based on partial paths is presented. Finally, a practical application of finding shortest paths in the telecommunication industry is shown....

  13. Back to the future: A practice led transition program from Assistant in Nursing to Enrolled Nurse.

    Science.gov (United States)

    Faithfull-Byrne, Annette; Thompson, Lorraine; Welch, Tony; Williamson, Moira; Schafer, Keppel; Hallinan, Claire

    2017-01-01

    Continuing professional development is an essential element in professional nursing practice. In our Hospital and Health service, a gap in existing nursing pathways was identified for Assistants in Nursing (AINs), who wished to further their career in nursing and progress to Enrolled Nurse (EN). There is also little in the literature that addresses Assistants in Nursing wishing to progress their career to Enrolled Nurses. This article describes a quality improvement project designed to address this gap. The project was a collaborative venture between a Queensland Hospital and Health Service and an Institute of Tertiary and Further Education (TAFE). The focus was on creating a flexible career path for Assistants in Nursing, wishing to become Enrolled Nurses. The project resulted in the Diploma of Nursing program (theory and practice) being delivered within the hospital setting by nurse educators and clinical nurse consultants. This is unusual in that the program is normally delivered in the tertiary setting, by academic staff from the Institute of Further Education. Program implementation is described along with the challenges encountered. Outcomes from the project were: 78% completion rate; 100% employment on completion of their course of study; and 18% progressing to further their education such as Advance Enrolled Nurse or Registered Nurse. Student satisfaction regarding the program was also positive. The initiative established a local career path for Assistants in Nursing wishing to progress to Enrolled Nurse. This quality project demonstrates that collaborative ventures between the tertiary sector and hospital and health services, can create innovative flexible solutions for staff wishing to further their career in nursing. Copyright © 2016 Elsevier Ltd. All rights reserved.

  14. Energy Flexibility from Large Prosumers to Support Distribution System Operation—A Technical and Legal Case Study on the Amsterdam ArenA Stadium

    Directory of Open Access Journals (Sweden)

    Dirk Kuiken

    2018-01-01

    Full Text Available To deal with the rising integration of stochastic renewables and energy intensive distributed energy resources (DER to the electricity network, alternatives to expensive network reinforcements are increasingly needed. An alternative solution often under consideration is integrating flexibility from the consumer side to system management. However, such a solution needs to be contemplated from different angles before it can be implemented in practice. To this end, this article considers a case study of the Amsterdam ArenA stadium and its surrounding network where flexibility is expected to be available to support the network in the future. The article studies the technical aspects of using this flexibility to determine to what extent, despite the different, orthogonal goals, the available flexibility can be used by various stakeholders in scenarios with a large load from electric vehicle charging points. Furthermore, a legal study is performed to determine the feasibility of the technical solutions proposed by analysing current European Union (EU and Dutch law and focusing on the current agreements existing between the parties involved. The article shows that flexibility in the network provided by Amsterdam ArenA is able to significantly increase the number of charging points the network can accommodate. Nonetheless, while several uses of flexibility are feasible under current law, the use of flexibility provided by electric vehicles specifically faces several legal challenges in current arrangements.

  15. Rocket Flight Path

    Directory of Open Access Journals (Sweden)

    Jamie Waters

    2014-09-01

    Full Text Available This project uses Newton’s Second Law of Motion, Euler’s method, basic physics, and basic calculus to model the flight path of a rocket. From this, one can find the height and velocity at any point from launch to the maximum altitude, or apogee. This can then be compared to the actual values to see if the method of estimation is a plausible. The rocket used for this project is modeled after Bullistic-1 which was launched by the Society of Aeronautics and Rocketry at the University of South Florida.

  16. JAVA PathFinder

    Science.gov (United States)

    Mehhtz, Peter

    2005-01-01

    JPF is an explicit state software model checker for Java bytecode. Today, JPF is a swiss army knife for all sort of runtime based verification purposes. This basically means JPF is a Java virtual machine that executes your program not just once (like a normal VM), but theoretically in all possible ways, checking for property violations like deadlocks or unhandled exceptions along all potential execution paths. If it finds an error, JPF reports the whole execution that leads to it. Unlike a normal debugger, JPF keeps track of every step how it got to the defect.

  17. Hamiltonian path integrals

    International Nuclear Information System (INIS)

    Prokhorov, L.V.

    1982-01-01

    Problems related to consideration of operator nonpermutability in Hamiltonian path integral (HPI) are considered in the review. Integrals are investigated using trajectories in configuration space (nonrelativistic quantum mechanics). Problems related to trajectory integrals in HPI phase space are discussed: the problem of operator nonpermutability consideration (extra terms problem) and corresponding equivalence rules; ambiguity of HPI usual recording; transition to curvilinear coordinates. Problem of quantization of dynamical systems with couplings has been studied. As in the case of canonical transformations, quantization of the systems with couplings of the first kind requires the consideration of extra terms

  18. Path to Prosperity

    OpenAIRE

    Wolfowitz,Paul

    2006-01-01

    Paul Wolfowitz, President of the World Bank, discussed Singapore's remarkable progress along the road from poverty to prosperity which has also been discovered by many other countries in East Asia and around the world. He spoke of how each country must find its own path for people to pursue the same dreams of the chance to go to school, the security of a good job, and the ability to provide a better future for their children. Throughout the world, and importantly in the developing world, ther...

  19. World nuclear energy paths

    International Nuclear Information System (INIS)

    Connolly, T.J.; Hansen, U.; Jaek, W.; Beckurts, K.H.

    1979-01-01

    In examing the world nuclear energy paths, the following assumptions were adopted: the world economy will grow somewhat more slowly than in the past, leading to reductions in electricity demand growth rates; national and international political impediments to the deployment of nuclear power will gradually disappear over the next few years; further development of nuclear power will proceed steadily, without serious interruption but with realistic lead times for the introduction of advanced technologies. Given these assumptions, this paper attempts a study of possible world nuclear energy developments, disaggregated on a regional and national basis. The scenario technique was used and a few alternative fuel-cycle scenarios were developed. Each is an internally consistent model of technically and economically feasible paths to the further development of nuclear power in an aggregate of individual countries and regions of the world. The main purpose of this modeling exercise was to gain some insight into the probable international locations of reactors and other nuclear facilities, the future requirements for uranium and for fuel-cycle services, and the problems of spent-fuel storage and waste management. The study also presents an assessment of the role that nuclear power might actually play in meeting future world energy demand

  20. Paths of Cultural Systems

    Directory of Open Access Journals (Sweden)

    Paul Ballonoff

    2017-12-01

    Full Text Available A theory of cultural structures predicts the objects observed by anthropologists. We here define those which use kinship relationships to define systems. A finite structure we call a partially defined quasigroup (or pdq, as stated by Definition 1 below on a dictionary (called a natural language allows prediction of certain anthropological descriptions, using homomorphisms of pdqs onto finite groups. A viable history (defined using pdqs states how an individual in a population following such history may perform culturally allowed associations, which allows a viable history to continue to survive. The vector states on sets of viable histories identify demographic observables on descent sequences. Paths of vector states on sets of viable histories may determine which histories can exist empirically.

  1. Propagators and path integrals

    Energy Technology Data Exchange (ETDEWEB)

    Holten, J.W. van

    1995-08-22

    Path-integral expressions for one-particle propagators in scalar and fermionic field theories are derived, for arbitrary mass. This establishes a direct connection between field theory and specific classical point-particle models. The role of world-line reparametrization invariance of the classical action and the implementation of the corresponding BRST-symmetry in the quantum theory are discussed. The presence of classical world-line supersymmetry is shown to lead to an unwanted doubling of states for massive spin-1/2 particles. The origin of this phenomenon is traced to a `hidden` topological fermionic excitation. A different formulation of the pseudo-classical mechanics using a bosonic representation of {gamma}{sub 5} is shown to remove these extra states at the expense of losing manifest supersymmetry. (orig.).

  2. innovation path exploration

    Directory of Open Access Journals (Sweden)

    Li Jian

    2016-01-01

    Full Text Available The world has entered the information age, all kinds of information technologies such as cloud technology, big data technology are in rapid development, and the “Internet plus” appeared. The main purpose of “Internet plus” is to provide an opportunity for the further development of the enterprise, the enterprise technology, business and other aspects of factors combine. For enterprises, grasp the “Internet plus” the impact of the market economy will undoubtedly pave the way for the future development of enterprises. This paper will be on the innovation path of the enterprise management “Internet plus” era tied you study, hope to be able to put forward some opinions and suggestions.

  3. Nurses who work outside nursing.

    Science.gov (United States)

    Duffield, Christine; Pallas, Linda O'Brien; Aitken, Leanne M

    2004-09-01

    The desire to care for people, a family history of professional health care work, and security in career choice are documented reasons for entering nursing. Reasons for leaving include workload, unsafe work environments and harassment. The relationship between these factors and the time nurses spend in the profession has not been explored. This paper reports a study with people who have left nursing, to investigate why they became a nurse, how long they stayed in nursing, and their reasons for leaving. A questionnaire was mailed to Registered Nurses currently working outside nursing, seeking respondents' reasons for entering and leaving nursing, and perceptions of the skills gained from nursing and the ease of adjustment to working in a non-nursing environment. Data analysis included descriptive statistics, exploratory and confirmatory factor analysis, correlational analysis and linear and multiple regression analysis. A model incorporating the factors 'altruistic reasons', 'default choice' and 'stepping stone' explained 36.2% of the variance in reasons for becoming a nurse. A model incorporating the factors 'legal and employer', 'external values and beliefs about nursing', 'professional practice', 'work life/home life' and 'contract requirements' explained 55.4% of the variance in reasons for leaving nursing. Forty-eight per cent of the variance in tenure in nursing practice was explained through personal characteristics of nurses (36%), reasons for becoming a nurse (7%) and reasons for leaving (6%). The reasons why nurses entered or left the profession were varied and complex. While personal characteristics accounted for a large component of tenure in nursing, those managing the nursing workforce should consider professional practice issues and the balance between work life and home life.

  4. Violenze allo stadio: il caso di Filippo Raciti / Violence in football stadiums: the case of Filippo Raciti / Violences au stade: l'affaire Filippo Raciti

    Directory of Open Access Journals (Sweden)

    Ziosi M.

    2008-12-01

    Full Text Available Afin d'aborder le sujet de la violence dans les stades, j'ai avant tout analysé brièvement les épisodes les plus graves pour lesquels la chronique sportive s'est colorée de noir, pour arriver enfin au meurtre de Filippo Raciti. Par le biais des 392 articles publiés au mois de février 2007 dans les quotidiens Il Corriere della Sera, la Repubblica, Il Resto del Carlino et l’Unità, j'ai examiné cette affaire criminelle de la manière suivante: premièrement une description du déroulement des faits du 2 février 2007, dans laquelle les séquences et les dynamiques qui ont entraînés la mort de l'inspecteur Raciti emergent, a été effectuée, suivie par une analyse de contenu communicatif des articles dans le but de mettre en évidence les modalités de traitement de l'information dans la presse. Cette analyse se compose d'un volet quantitatif et d'un volet qualitatif: ce dernier a été realisé par le biais d'une fiche de collecte des données divisée en sujets. De cet examen approfondi du language journalistique découlent des réfléxions sur la délicate affaire "Filippo Raciti" et sur la ville de Catane, sur le "système football" en général et sur la situation de la sécurité dans les stades. Enfin, des propositions qui, mettant en évidence les points faibles des lois actuelles, ont pour but d'envisager des interventions pour réduire le comportement violent des supporters.AbstractIn order to deal with the problems of violence in football stadiums, I have first of all shortly analysed the most serious episodes in which have darkened the sporting world and then explained the murder of Filippo Raciti. Through the reading of the 392 articles published on the daily papers Il Corriere della Sera, la Repubblica, Il Resto del Carlino and l'Unità in the month of February 2007, the criminal case is examined in the following way: to a first description of the course of events of February 2nd 2007, in which the sequences and the

  5. Path integral in Snyder space

    Energy Technology Data Exchange (ETDEWEB)

    Mignemi, S., E-mail: smignemi@unica.it [Dipartimento di Matematica e Informatica, Università di Cagliari, Viale Merello 92, 09123 Cagliari (Italy); INFN, Sezione di Cagliari, Cittadella Universitaria, 09042 Monserrato (Italy); Štrajn, R. [Dipartimento di Matematica e Informatica, Università di Cagliari, Viale Merello 92, 09123 Cagliari (Italy); INFN, Sezione di Cagliari, Cittadella Universitaria, 09042 Monserrato (Italy)

    2016-04-29

    The definition of path integrals in one- and two-dimensional Snyder space is discussed in detail both in the traditional setting and in the first-order formalism of Faddeev and Jackiw. - Highlights: • The definition of the path integral in Snyder space is discussed using phase space methods. • The same result is obtained in the first-order formalism of Faddeev and Jackiw. • The path integral formulation of the two-dimensional Snyder harmonic oscillator is outlined.

  6. Path integral in Snyder space

    International Nuclear Information System (INIS)

    Mignemi, S.; Štrajn, R.

    2016-01-01

    The definition of path integrals in one- and two-dimensional Snyder space is discussed in detail both in the traditional setting and in the first-order formalism of Faddeev and Jackiw. - Highlights: • The definition of the path integral in Snyder space is discussed using phase space methods. • The same result is obtained in the first-order formalism of Faddeev and Jackiw. • The path integral formulation of the two-dimensional Snyder harmonic oscillator is outlined.

  7. Nursing Homes

    Science.gov (United States)

    ... Home › Aging & Health A to Z › Nursing Homes Font size A A A Print Share Glossary Basic ... Reason For Living in A Nursing Home Some type of disability with activities of daily living (ADLs) ...

  8. Nursing Reclaims its Role.

    Science.gov (United States)

    Diers, Donna

    1982-01-01

    An attempt is made to explain the nurses' role: what the nurse is, what the nurse does, how the nurse is viewed by society, why nurses suffer burnout, nursing costs, and health care system reform. (CT)

  9. Neonatal Nursing

    OpenAIRE

    Crawford, Doreen; Morris, Maryke

    1994-01-01

    "Neonatal Nursing" offers a systematic approach to the nursing care of the sick newborn baby. Nursing actions and responsibilities are the focus of the text with relevant research findings, clinical applications, anatomy, physiology and pathology provided where necessary. This comprehensive text covers all areas of neonatal nursing including ethics, continuing care in the community, intranatal care, statistics and pharmokinetics so that holistic care of the infant is described. This book shou...

  10. Advanced Nursing Education: Critical Factors That Influence Diploma and Associate Degree Nurses to Advance.

    Science.gov (United States)

    McGhie-Anderson, Rose Lavine

    The purpose of this study was to gain an understanding of the social processes associated with the decision of diploma and associate degree nurses to advance academically. Advanced nursing education needs to be pursued along the continuum of the nursing career path. This education process is indispensable to the role of nurses as educator, manager, nurse leader, and researcher who will effect policy changes, assume leadership roles as revolutionary thinkers, and implement paradigmatic shifts. Data were collected from two groups of participants using face-to-face, semistructured interviews. Group 1 consisted of diploma and associate degree nurses; Group 2 consisted of baccalaureate, masters, and doctoral degree nurses who have progressed academically. Emerging from the thick, rich data were core categories of rewarding, motivating, and supporting as critical factors that influence professional advancement. This qualitative study elucidated that professional advancement was the social process that grounds. The emergent theory was the theory of professional advancement.

  11. Nursing: What's a Nurse Practitioner?

    Science.gov (United States)

    ... as advanced practice nurses, or APNs) have a master's degree in nursing (MS or MSN) and board certification ... NP training emphasizes disease prevention, reduction of health risks, and thorough patient education. Like doctors, NPs are ...

  12. Two Generations of Path Dependence

    DEFF Research Database (Denmark)

    Madsen, Mogens Ove

      Even if there is no fully articulated and generally accepted theory of Path Dependence it has eagerly been taken up across a wide range of social sciences - primarily coming from economics. Path Dependence is most of all a metaphor that offers reason to believe, that some political, social...

  13. Chromatic roots and hamiltonian paths

    DEFF Research Database (Denmark)

    Thomassen, Carsten

    2000-01-01

    We present a new connection between colorings and hamiltonian paths: If the chromatic polynomial of a graph has a noninteger root less than or equal to t(n) = 2/3 + 1/3 (3)root (26 + 6 root (33)) + 1/3 (3)root (26 - 6 root (33)) = 1.29559.... then the graph has no hamiltonian path. This result...

  14. On Hilbert space of paths

    International Nuclear Information System (INIS)

    Exner, P.; Kolerov, G.I.

    1980-01-01

    A Hilbert space of paths, the elements of which are determined by trigonometric series, was proposed and used recently by Truman. This space is shown to consist precisely of all absolutely continuous paths ending in the origin with square-integrable derivatives

  15. Cold power creates artificial ice for the ice hockey championship. Football arena is used as an ice stadium; Kaeltepower schafft Kunsteis fuer Eishockey-WM. Fussballarena wird zum Eisstadion

    Energy Technology Data Exchange (ETDEWEB)

    Hoffmann, Franz

    2010-11-15

    On 7th May 2010, the Veltins arena in Gelsenkirchen (Federal Republic of Germany) became the greatest ice hockey stadium of the world. There, the opening play of the world championship between the host Germany and the USA took place. Germany as a clear outsider won 2:1 against the US-Boys. However, before this historical victory extensive building operations had to be realized 'Auf Schalke' in order to convert the lawn into a complete ice hockey court.

  16. Hard paths, soft paths or no paths? Cross-cultural perceptions of water solutions

    Science.gov (United States)

    Wutich, A.; White, A. C.; White, D. D.; Larson, K. L.; Brewis, A.; Roberts, C.

    2014-01-01

    In this study, we examine how development status and water scarcity shape people's perceptions of "hard path" and "soft path" water solutions. Based on ethnographic research conducted in four semi-rural/peri-urban sites (in Bolivia, Fiji, New Zealand, and the US), we use content analysis to conduct statistical and thematic comparisons of interview data. Our results indicate clear differences associated with development status and, to a lesser extent, water scarcity. People in the two less developed sites were more likely to suggest hard path solutions, less likely to suggest soft path solutions, and more likely to see no path to solutions than people in the more developed sites. Thematically, people in the two less developed sites envisioned solutions that involve small-scale water infrastructure and decentralized, community-based solutions, while people in the more developed sites envisioned solutions that involve large-scale infrastructure and centralized, regulatory water solutions. People in the two water-scarce sites were less likely to suggest soft path solutions and more likely to see no path to solutions (but no more likely to suggest hard path solutions) than people in the water-rich sites. Thematically, people in the two water-rich sites seemed to perceive a wider array of unrealized potential soft path solutions than those in the water-scarce sites. On balance, our findings are encouraging in that they indicate that people are receptive to soft path solutions in a range of sites, even those with limited financial or water resources. Our research points to the need for more studies that investigate the social feasibility of soft path water solutions, particularly in sites with significant financial and natural resource constraints.

  17. School Nurse Resilience: Experiences after Multiple Natural Disasters

    Science.gov (United States)

    Broussard, Lisa; Myers, Rachel

    2010-01-01

    This qualitative descriptive study explored the experiences of school nurses in coastal Louisiana, who were affected by Hurricanes Gustav and Ike in 2008 and who had also been in the path of destruction caused by Hurricanes Katrina and Rita in 2005. The purpose of the study was to describe the experiences of school nurses affected by repeated…

  18. Optimal Paths in Gliding Flight

    Science.gov (United States)

    Wolek, Artur

    Underwater gliders are robust and long endurance ocean sampling platforms that are increasingly being deployed in coastal regions. This new environment is characterized by shallow waters and significant currents that can challenge the mobility of these efficient (but traditionally slow moving) vehicles. This dissertation aims to improve the performance of shallow water underwater gliders through path planning. The path planning problem is formulated for a dynamic particle (or "kinematic car") model. The objective is to identify the path which satisfies specified boundary conditions and minimizes a particular cost. Several cost functions are considered. The problem is addressed using optimal control theory. The length scales of interest for path planning are within a few turn radii. First, an approach is developed for planning minimum-time paths, for a fixed speed glider, that are sub-optimal but are guaranteed to be feasible in the presence of unknown time-varying currents. Next the minimum-time problem for a glider with speed controls, that may vary between the stall speed and the maximum speed, is solved. Last, optimal paths that minimize change in depth (equivalently, maximize range) are investigated. Recognizing that path planning alone cannot overcome all of the challenges associated with significant currents and shallow waters, the design of a novel underwater glider with improved capabilities is explored. A glider with a pneumatic buoyancy engine (allowing large, rapid buoyancy changes) and a cylindrical moving mass mechanism (generating large pitch and roll moments) is designed, manufactured, and tested to demonstrate potential improvements in speed and maneuverability.

  19. Nursing students assess nursing education.

    Science.gov (United States)

    Norman, Linda; Buerhaus, Peter I; Donelan, Karen; McCloskey, Barbara; Dittus, Robert

    2005-01-01

    This study assessed the characteristics of nursing students currently enrolled in nursing education programs, how students finance their nursing education, their plans for clinical practice and graduate education, and the rewards and difficulties of being a nursing student. Data are from a survey administered to a national sample of 496 nursing students. The students relied on financial aid and personal savings and earnings to finance their education. Parents, institutional scholarships, and government loans are also important sources, but less than 15% of the students took out bank loans. Nearly one quarter of the students, particularly younger and minority students, plan to enroll in graduate school immediately after graduation and most want to become advanced nursing practitioners. Most of the nursing students (88%) are satisfied with their nursing education and nearly all (95%) provided written answers to two open-ended questions. Comments collapsed into three major categories reflecting the rewards (helping others, status, and job security) and three categories reflecting the difficulties (problems with balancing demands, quality of nursing education, and the admissions process) of being a nursing student. Implications for public policymaking center on expanding the capacity of nursing education programs, whereas schools themselves should focus on addressing the financial needs of students, helping them strike a balance among their school, work, and personal/family responsibilities and modifying certain aspects of the curriculum.

  20. Perfect discretization of path integrals

    International Nuclear Information System (INIS)

    Steinhaus, Sebastian

    2012-01-01

    In order to obtain a well-defined path integral one often employs discretizations. In the case of General Relativity these generically break diffeomorphism symmetry, which has severe consequences since these symmetries determine the dynamics of the corresponding system. In this article we consider the path integral of reparametrization invariant systems as a toy example and present an improvement procedure for the discretized propagator. Fixed points and convergence of the procedure are discussed. Furthermore we show that a reparametrization invariant path integral implies discretization independence and acts as a projector onto physical states.

  1. Perfect discretization of path integrals

    Science.gov (United States)

    Steinhaus, Sebastian

    2012-05-01

    In order to obtain a well-defined path integral one often employs discretizations. In the case of General Relativity these generically break diffeomorphism symmetry, which has severe consequences since these symmetries determine the dynamics of the corresponding system. In this article we consider the path integral of reparametrization invariant systems as a toy example and present an improvement procedure for the discretized propagator. Fixed points and convergence of the procedure are discussed. Furthermore we show that a reparametrization invariant path integral implies discretization independence and acts as a projector onto physical states.

  2. Big Data and Nursing: Implications for the Future.

    Science.gov (United States)

    Topaz, Maxim; Pruinelli, Lisiane

    2017-01-01

    Big data is becoming increasingly more prevalent and it affects the way nurses learn, practice, conduct research and develop policy. The discipline of nursing needs to maximize the benefits of big data to advance the vision of promoting human health and wellbeing. However, current practicing nurses, educators and nurse scientists often lack the required skills and competencies necessary for meaningful use of big data. Some of the key skills for further development include the ability to mine narrative and structured data for new care or outcome patterns, effective data visualization techniques, and further integration of nursing sensitive data into artificial intelligence systems for better clinical decision support. We provide growth-path vision recommendations for big data competencies for practicing nurses, nurse educators, researchers, and policy makers to help prepare the next generation of nurses and improve patient outcomes trough better quality connected health.

  3. KAJlAN EKONOMI PEMANFAATAN KAWASAN STADION KRIDOSONO SEBAGAI RUANG HIJAU KOTA YOGYAKARTA (Economic Study for Utilization of Kridosono Stadium Area as An Urban Green Space of Yogyakarta Municipality

    Directory of Open Access Journals (Sweden)

    Amiluhur Soeroso

    2010-07-01

    Objective of the study is measuring economy feasibility of Kridosono urban park as a public goods that expected directly addresses the issues of natural environmental quality. Data were obtained from interviews toward local resident of Yogyakarta municipality. Hereafter, willingness to pay (WTP toward demand models were estimated by contingent valuation method (CVM and used to derive total consumer surplus. The results indicate that economic value of Kridosono Stadium land is about US$ 27 million (IDR 257 billion per annum, more than its market price i.e. amount US$ 7.8 million or IDR 74 billion. Thus, the study gives stakeholders knowledge of decision making for managing, funding and alocating resources. Utilization part of Kridosono Stadium land as urban park will give bigger benefit than it would be this for commercial interest. Auspicious is hanging on the urban park, because it will help eliminate greenhouse gases i.e. Carbon dioxide, Methane, Nitrous oxide, Hydro-fluorocarbons, Perflurocarbon and Sulfur hexafluoride which is produced by motor vehicle.

  4. An Introduction to Path Analysis

    Science.gov (United States)

    Wolfe, Lee M.

    1977-01-01

    The analytical procedure of path analysis is described in terms of its use in nonexperimental settings in the social sciences. The description assumes a moderate statistical background on the part of the reader. (JKS)

  5. Probabilistic simulation of fermion paths

    International Nuclear Information System (INIS)

    Zhirov, O.V.

    1989-01-01

    Permutation symmetry of fermion path integral allows (while spin degrees of freedom are ignored) to use in its simulation any probabilistic algorithm, like Metropolis one, heat bath, etc. 6 refs., 2 tabs

  6. Formal language constrained path problems

    Energy Technology Data Exchange (ETDEWEB)

    Barrett, C.; Jacob, R.; Marathe, M.

    1997-07-08

    In many path finding problems arising in practice, certain patterns of edge/vertex labels in the labeled graph being traversed are allowed/preferred, while others are disallowed. Motivated by such applications as intermodal transportation planning, the authors investigate the complexity of finding feasible paths in a labeled network, where the mode choice for each traveler is specified by a formal language. The main contributions of this paper include the following: (1) the authors show that the problem of finding a shortest path between a source and destination for a traveler whose mode choice is specified as a context free language is solvable efficiently in polynomial time, when the mode choice is specified as a regular language they provide algorithms with improved space and time bounds; (2) in contrast, they show that the problem of finding simple paths between a source and a given destination is NP-hard, even when restricted to very simple regular expressions and/or very simple graphs; (3) for the class of treewidth bounded graphs, they show that (i) the problem of finding a regular language constrained simple path between source and a destination is solvable in polynomial time and (ii) the extension to finding context free language constrained simple paths is NP-complete. Several extensions of these results are presented in the context of finding shortest paths with additional constraints. These results significantly extend the results in [MW95]. As a corollary of the results, they obtain a polynomial time algorithm for the BEST k-SIMILAR PATH problem studied in [SJB97]. The previous best algorithm was given by [SJB97] and takes exponential time in the worst case.

  7. Perfect discretization of path integrals

    OpenAIRE

    Steinhaus, Sebastian

    2011-01-01

    In order to obtain a well-defined path integral one often employs discretizations. In the case of General Relativity these generically break diffeomorphism symmetry, which has severe consequences since these symmetries determine the dynamics of the corresponding system. In this article we consider the path integral of reparametrization invariant systems as a toy example and present an improvement procedure for the discretized propagator. Fixed points and convergence of the procedure are discu...

  8. Path integration in conical space

    International Nuclear Information System (INIS)

    Inomata, Akira; Junker, Georg

    2012-01-01

    Quantum mechanics in conical space is studied by the path integral method. It is shown that the curvature effect gives rise to an effective potential in the radial path integral. It is further shown that the radial path integral in conical space can be reduced to a form identical with that in flat space when the discrete angular momentum of each partial wave is replaced by a specific non-integral angular momentum. The effective potential is found proportional to the squared mean curvature of the conical surface embedded in Euclidean space. The path integral calculation is compatible with the Schrödinger equation modified with the Gaussian and the mean curvature. -- Highlights: ► We study quantum mechanics on a cone by the path integral approach. ► The path integral depends only on the metric and the curvature effect is built in. ► The approach is consistent with the Schrödinger equation modified by an effective potential. ► The effective potential is found to be of the “Jensen–Koppe” and “da Costa” type.

  9. Path integrals on curved manifolds

    International Nuclear Information System (INIS)

    Grosche, C.; Steiner, F.

    1987-01-01

    A general framework for treating path integrals on curved manifolds is presented. We also show how to perform general coordinate and space-time transformations in path integrals. The main result is that one has to subtract a quantum correction ΔV ∝ ℎ 2 from the classical Lagrangian L, i.e. the correct effective Lagrangian to be used in the path integral is L eff = L-ΔV. A general prescription for calculating the quantum correction ΔV is given. It is based on a canonical approach using Weyl-ordering and the Hamiltonian path integral defined by the midpoint prescription. The general framework is illustrated by several examples: The d-dimensional rotator, i.e. the motion on the sphere S d-1 , the path integral in d-dimensional polar coordinates, the exact treatment of the hydrogen atom in R 2 and R 3 by performing a Kustaanheimo-Stiefel transformation, the Langer transformation and the path integral for the Morse potential. (orig.)

  10. Path-based Queries on Trajectory Data

    DEFF Research Database (Denmark)

    Krogh, Benjamin Bjerre; Pelekis, Nikos; Theodoridis, Yannis

    2014-01-01

    In traffic research, management, and planning a number of path-based analyses are heavily used, e.g., for computing turn-times, evaluating green waves, or studying traffic flow. These analyses require retrieving the trajectories that follow the full path being analyzed. Existing path queries cannot...... sufficiently support such path-based analyses because they retrieve all trajectories that touch any edge in the path. In this paper, we define and formalize the strict path query. This is a novel query type tailored to support path-based analysis, where trajectories must follow all edges in the path...... a specific path by only retrieving data from the first and last edge in the path. To correctly answer strict path queries existing network-constrained trajectory indexes must retrieve data from all edges in the path. An extensive performance study of NETTRA using a very large real-world trajectory data set...

  11. Nursing informatics and nursing ethics

    DEFF Research Database (Denmark)

    Kaltoft, Mette Kjer

    2013-01-01

    All healthcare visions, including that of The TIGER (Technology-Informatics-Guiding-Educational-Reform) Initiative envisage a crucial role for nursing. However, its 7 descriptive pillars do not address the disconnect between Nursing Informatics and Nursing Ethics and their distinct communities......-of-(care)-decision. Increased pressure for translating 'evidence-based' research findings into 'ethically-sound', 'value-based' and 'patient-centered' practice requires rethinking the model implicit in conventional knowledge translation and informatics practice in all disciplines, including nursing. The aim is to aid 'how...... nurses and other health care scientists more clearly identify clinical and other relevant data that can be captured to inform future comparative effectiveness research. 'A prescriptive, theory-based discipline of '(Nursing) Decisionics' expands the Grid for Volunteer Development of TIGER's newly launched...

  12. Nursing students' attitudes about home health nursing.

    Science.gov (United States)

    Prestia, Mindy; Murphy, Susan; Yoder, Marian

    2008-09-01

    In an effort to address the home care nursing shortage, this pilot study was designed to measure nursing students' attitudes toward home health nursing and to test the Home Health Attitude Questionnaire developed specifically for this study based on the Theory of Planned Behavior. Senior undergraduate nursing students and registered nursing to bachelor of science in nursing students completed the questionnaire.

  13. Fostering nursing ethics for practical nursing

    OpenAIRE

    森田, 敏子; モリタ, トシコ; Morita, Toshiko

    2014-01-01

    Higher nursing ethics can raise nursing quality. The author attempts to define theproblem from the seedling of sensibility in practical nursing and focuses on the clinical environment surrounding nursing ethics from its pedagogical and historicalaspects. On the basis of these standpoints, the author discusses issues on the practical nursing as a practitioner of nursing ethics.

  14. American Nurses Association Nursing World

    Science.gov (United States)

    ... Standards Nursing Quality Ethics / Genetics & Genomics Code of Ethics Workplace Safety / Safe Patient Handling Needlestick Prevention Environmental Health Policy & Advocacy / Take Action Position Statements Member ...

  15. Path integration on hyperbolic spaces

    Energy Technology Data Exchange (ETDEWEB)

    Grosche, C [Hamburg Univ. (Germany). 2. Inst. fuer Theoretische Physik

    1991-11-01

    Quantum mechanics on the hyperbolic spaces of rank one is discussed by path integration technique. Hyperbolic spaces are multi-dimensional generalisation of the hyperbolic plane, i.e. the Poincare upper half-plane endowed with a hyperbolic geometry. We evalute the path integral on S{sub 1} {approx equal} SO (n,1)/SO(n) and S{sub 2} {approx equal} SU(n,1)/S(U(1) x U(n)) in a particular coordinate system, yielding explicitly the wave-functions and the energy spectrum. Futhermore we can exploit a general property of all these spaces, namely that they can be parametrized by a pseudopolar coordinate system. This allows a separation in path integration over spheres and an additional path integration over the remaining hyperbolic coordinate, yielding effectively a path integral for a modified Poeschl-Teller potential. Only continuous spectra can exist in all the cases. For all the hyperbolic spaces of rank one we find a general formula for the largest lower bound (zero-point energy) of the spectrum which is given by E{sub O} = h{sup 2} /8m(m{sub {alpha}} +2m{sub 2} {alpha}){sup 2} (m {alpha} and m{sub 2}{alpha} denote the dimension of the root subspace corresponding to the roots {alpha} and 2{alpha}, respectively). I also discuss the case, where a constant magnetic field on H{sup n} is incorporated. (orig.).

  16. Path integration on hyperbolic spaces

    International Nuclear Information System (INIS)

    Grosche, C.

    1991-11-01

    Quantum mechanics on the hyperbolic spaces of rank one is discussed by path integration technique. Hyperbolic spaces are multi-dimensional generalisation of the hyperbolic plane, i.e. the Poincare upper half-plane endowed with a hyperbolic geometry. We evalute the path integral on S 1 ≅ SO (n,1)/SO(n) and S 2 ≅ SU(n,1)/S[U(1) x U(n)] in a particular coordinate system, yielding explicitly the wave-functions and the energy spectrum. Futhermore we can exploit a general property of all these spaces, namely that they can be parametrized by a pseudopolar coordinate system. This allows a separation in path integration over spheres and an additional path integration over the remaining hyperbolic coordinate, yielding effectively a path integral for a modified Poeschl-Teller potential. Only continuous spectra can exist in all the cases. For all the hyperbolic spaces of rank one we find a general formula for the largest lower bound (zero-point energy) of the spectrum which is given by E O = h 2 /8m(m α +2m 2 α) 2 (m α and m 2 α denote the dimension of the root subspace corresponding to the roots α and 2α, respectively). I also discuss the case, where a constant magnetic field on H n is incorporated. (orig.)

  17. Path Integrals in Quantum Mechanics

    International Nuclear Information System (INIS)

    Louko, J

    2005-01-01

    Jean Zinn-Justin's textbook Path Integrals in Quantum Mechanics aims to familiarize the reader with the path integral as a calculational tool in quantum mechanics and field theory. The emphasis is on quantum statistical mechanics, starting with the partition function Tr exp(-β H) and proceeding through the diffusion equation to barrier penetration problems and their semiclassical limit. The 'real time' path integral is defined via analytic continuation and used for the path-integral representation of the nonrelativistic S-matrix and its perturbative expansion. Holomorphic and Grassmannian path integrals are introduced and applied to nonrelativistic quantum field theory. There is also a brief discussion of path integrals in phase space. The introduction includes a brief historical review of path integrals, supported by a bibliography with some 40 entries. As emphasized in the introduction, mathematical rigour is not a central issue in the book. This allows the text to present the calculational techniques in a very readable manner: much of the text consists of worked-out examples, such as the quartic anharmonic oscillator in the barrier penetration chapter. At the end of each chapter there are exercises, some of which are of elementary coursework type, but the majority are more in the style of extended examples. Most of the exercises indeed include the solution or a sketch thereof. The book assumes minimal previous knowledge of quantum mechanics, and some basic quantum mechanical notation is collected in an appendix. The material has a large overlap with selected chapters in the author's thousand-page textbook Quantum Field Theory and Critical Phenomena (2002 Oxford: Clarendon). The stand-alone scope of the present work has, however, allowed a more focussed organization of this material, especially in the chapters on, respectively, holomorphic and Grassmannian path integrals. In my view the book accomplishes its aim admirably and is eminently usable as a textbook

  18. From path integrals to anyons

    International Nuclear Information System (INIS)

    Canright, G.S.

    1992-01-01

    I offer a pedagogical review of the homotopy arguments for fractional statistics in two dimensions. These arguments arise naturally in path-integral language since they necessarily consider the properties of paths rather than simply permutations. The braid group replaces the permutation group as the basic structure for quantum statistics; hence properties of the braid group on several surfaces are briefly discussed. Finally, the question of multiple (real-space) occupancy is addressed; I suggest that the ''traditional'' treatment of this question (ie, an assumption that many-anyon wavefunctions necessarily vanish for multiple occupancy) needs reexamination

  19. Background and managerial practice of nurses: paths for transforming praxis La formación y la práctica gerencial del enfermero: caminos para una praxis transformadora A formação e a prática gerencial do enfermeiro: caminhos para a práxis transformadora

    Directory of Open Access Journals (Sweden)

    Zélia Marilda Rodrigues Resck

    2008-02-01

    Full Text Available Qualitative research using a dialectics view; the objective is to analyze the demands and the expectations from the setting of managerial practices in view of the Pedagogical Project and the strategies which may or may not favor the transforming praxis. It involves 11 students, 12 professors, and 12 service nurses who are the participants in the teaching-learning process of managerial knowledge, in the interceding space, in the fields of practice and in the curricular training programs, both in the hospital environment and in the basic health services and of the Nursing graduation course from a Federal University, from the city of Alfenas-MG. It uses the collecting technique by focal group and the analysis of the contents is subsided by two great discussions: background and work. The results point that the nurse's background and praxis must go through the work processes in the caring, managerial and educative dimensions as well as in the scientific investigation, building paths for the development of competences, in the teaching and service interaction, following the current National Curriculum Guidelines.Se trata de una investigación con enfoque cualitativo dentro de la perspectiva dialéctica; siendo el objetivo analizar las demandas y las expectativas de las prácticas gerenciales frente al Proyecto Pedagógico, así como las estrategias que favorecen la praxis transformadora. Participaron 11 alumnos, 12 docentes y 12 enfermeros del servicio, participantes del proceso enseñanza- aprendizaje en el saber gerencial del curso de Pre-grado en Enfermería de la Institución Federal de Enseñanza Superior de Alfenas-MG, en el lugar de intervención, en los campos prácticos y práctico curriculares del hospital dentro los servicios básicos. La recolección de datos fue a través del grupo focal y el análisis de contenido fue subsidiado por dos grandes vertientes: formación y actuación. Los resultados indican que la formación y la praxis del

  20. Isomorphisms and traversability of directed path graphs

    NARCIS (Netherlands)

    Broersma, Haitze J.; Li, Xueliang; Li, X.

    1998-01-01

    The concept of a line digraph is generalized to that of a directed path graph. The directed path graph $\\forw P_k(D)$ of a digraph $D$ is obtained by representing the directed paths on $k$ vertices of $D$ by vertices. Two vertices are joined by an arc whenever the corresponding directed paths in $D$

  1. Association of the Nurse Work Environment, Collective Efficacy, and Missed Care.

    Science.gov (United States)

    Smith, Jessica G; Morin, Karen H; Wallace, Leigh E; Lake, Eileen T

    2018-06-01

    Missed nursing care is a significant threat to quality patient care. Promoting collective efficacy within nurse work environments could decrease missed care. The purpose was to understand how missed care is associated with nurse work environments and collective efficacy of hospital staff nurses. A cross-sectional, convenience sample was obtained through online surveys from registered nurses working at five southwestern U.S. hospitals. Descriptive, correlational, regression, and path analyses were conducted ( N = 233). The percentage of nurses who reported that at least one care activity was missed frequently or always was 94%. Mouth care (36.0% of nurses) and ambulation (35.3%) were missed frequently or always. Nurse work environments and collective efficacy were moderately, positively correlated. Nurse work environments and collective efficacy were associated with less missed care (χ 2 = 10.714, p = .0054). Fostering collective efficacy in the nurse work environment could reduce missed care and improve patient outcomes.

  2. Naturalistic nursing.

    Science.gov (United States)

    Hussey, Trevor

    2011-01-01

    Where nurse education aims to provide an overarching intellectual framework, this paper argues that it should be the framework of naturalism. After an exposition of the chief features of naturalism and its relationship to science and morality, the paper describes naturalistic nursing, contrasting it with some other perspectives. There follows a defence of naturalism and naturalistic nursing against several objections, including those concerning spirituality, religion, meaning, morality, and alternative sources of knowledge. The paper ends with some of the advantages of the naturalistic approach. © 2010 Blackwell Publishing Ltd.

  3. Demystifying Nursing Theory: A Christian Nursing Perspective.

    Science.gov (United States)

    Schaffer, Marjorie A; Sandau, Kristin; Missal, Bernita

    How does nursing theory apply to nursing practice? Nursing theory can explain the why and how of nursing practice, guide nursing interventions, and provide a framework for measuring outcomes. This article briefly explains nursing theory, provides examples for applying theory to nursing practice, and proposes questions for examining the consistency of nursing theories with Christian perspectives. A helpful table illustrating grand, middle-range, and situation-specific theories and their application to nursing practice and research, along with references, is provided online as supplemental digital content. Three caring theories are analyzed from biblical beliefs.

  4. DiversePathsJ: diverse shortest paths for bioimage analysis.

    Science.gov (United States)

    Uhlmann, Virginie; Haubold, Carsten; Hamprecht, Fred A; Unser, Michael

    2018-02-01

    We introduce a formulation for the general task of finding diverse shortest paths between two end-points. Our approach is not linked to a specific biological problem and can be applied to a large variety of images thanks to its generic implementation as a user-friendly ImageJ/Fiji plugin. It relies on the introduction of additional layers in a Viterbi path graph, which requires slight modifications to the standard Viterbi algorithm rules. This layered graph construction allows for the specification of various constraints imposing diversity between solutions. The software allows obtaining a collection of diverse shortest paths under some user-defined constraints through a convenient and user-friendly interface. It can be used alone or be integrated into larger image analysis pipelines. http://bigwww.epfl.ch/algorithms/diversepathsj. michael.unser@epfl.ch or fred.hamprecht@iwr.uni-heidelberg.de. Supplementary data are available at Bioinformatics online. © The Author(s) 2017. Published by Oxford University Press.

  5. Spreading paths in partially observed social networks

    Science.gov (United States)

    Onnela, Jukka-Pekka; Christakis, Nicholas A.

    2012-03-01

    Understanding how and how far information, behaviors, or pathogens spread in social networks is an important problem, having implications for both predicting the size of epidemics, as well as for planning effective interventions. There are, however, two main challenges for inferring spreading paths in real-world networks. One is the practical difficulty of observing a dynamic process on a network, and the other is the typical constraint of only partially observing a network. Using static, structurally realistic social networks as platforms for simulations, we juxtapose three distinct paths: (1) the stochastic path taken by a simulated spreading process from source to target; (2) the topologically shortest path in the fully observed network, and hence the single most likely stochastic path, between the two nodes; and (3) the topologically shortest path in a partially observed network. In a sampled network, how closely does the partially observed shortest path (3) emulate the unobserved spreading path (1)? Although partial observation inflates the length of the shortest path, the stochastic nature of the spreading process also frequently derails the dynamic path from the shortest path. We find that the partially observed shortest path does not necessarily give an inflated estimate of the length of the process path; in fact, partial observation may, counterintuitively, make the path seem shorter than it actually is.

  6. Spreading paths in partially observed social networks.

    Science.gov (United States)

    Onnela, Jukka-Pekka; Christakis, Nicholas A

    2012-03-01

    Understanding how and how far information, behaviors, or pathogens spread in social networks is an important problem, having implications for both predicting the size of epidemics, as well as for planning effective interventions. There are, however, two main challenges for inferring spreading paths in real-world networks. One is the practical difficulty of observing a dynamic process on a network, and the other is the typical constraint of only partially observing a network. Using static, structurally realistic social networks as platforms for simulations, we juxtapose three distinct paths: (1) the stochastic path taken by a simulated spreading process from source to target; (2) the topologically shortest path in the fully observed network, and hence the single most likely stochastic path, between the two nodes; and (3) the topologically shortest path in a partially observed network. In a sampled network, how closely does the partially observed shortest path (3) emulate the unobserved spreading path (1)? Although partial observation inflates the length of the shortest path, the stochastic nature of the spreading process also frequently derails the dynamic path from the shortest path. We find that the partially observed shortest path does not necessarily give an inflated estimate of the length of the process path; in fact, partial observation may, counterintuitively, make the path seem shorter than it actually is.

  7. Nurses and Aides

    Science.gov (United States)

    Franklin, John

    1976-01-01

    Gerontological nursing (the care of the elderly) as a specialization for registered nurses, licensed practical nurses, and nursing aides is discussed with respect to training and qualifications, employment outlook, and earnings for each group. (JT)

  8. Primary Nurse - Role Evolution

    Science.gov (United States)

    Mundinger, Mary O'Neil

    1973-01-01

    Primary nursing means that each patient has an individual nurse who is responsible for assessing his nursing needs and planning and evaluating his nursing care. The article describes the advantages and problems connected with this approach to patient care. (AG)

  9. Value of intensified nursing

    OpenAIRE

    Raymann, Cornelia; Konta, Brigitte; Prusa, Nina; Frank, Wilhelm

    2006-01-01

    The concept "intensified nursing" is mentioned in differentiation to concepts of "nursing care" or "nursing" which intensifies resources or patient contact. Especially psychic and social needs of patients are very appreciated in nursing. A similar type of nursing is known under the concept "advanced nursing practice" (ANP) which means, that a specialised, academically trained nurse offers an extended nursing care in which a focus on the published knowledge of evidence based research is made. ...

  10. Stochastic control with rough paths

    International Nuclear Information System (INIS)

    Diehl, Joscha; Friz, Peter K.; Gassiat, Paul

    2017-01-01

    We study a class of controlled differential equations driven by rough paths (or rough path realizations of Brownian motion) in the sense of Lyons. It is shown that the value function satisfies a HJB type equation; we also establish a form of the Pontryagin maximum principle. Deterministic problems of this type arise in the duality theory for controlled diffusion processes and typically involve anticipating stochastic analysis. We make the link to old work of Davis and Burstein (Stoch Stoch Rep 40:203–256, 1992) and then prove a continuous-time generalization of Roger’s duality formula [SIAM J Control Optim 46:1116–1132, 2007]. The generic case of controlled volatility is seen to give trivial duality bounds, and explains the focus in Burstein–Davis’ (and this) work on controlled drift. Our study of controlled rough differential equations also relates to work of Mazliak and Nourdin (Stoch Dyn 08:23, 2008).

  11. Stochastic control with rough paths

    Energy Technology Data Exchange (ETDEWEB)

    Diehl, Joscha [University of California San Diego (United States); Friz, Peter K., E-mail: friz@math.tu-berlin.de [TU & WIAS Berlin (Germany); Gassiat, Paul [CEREMADE, Université Paris-Dauphine, PSL Research University (France)

    2017-04-15

    We study a class of controlled differential equations driven by rough paths (or rough path realizations of Brownian motion) in the sense of Lyons. It is shown that the value function satisfies a HJB type equation; we also establish a form of the Pontryagin maximum principle. Deterministic problems of this type arise in the duality theory for controlled diffusion processes and typically involve anticipating stochastic analysis. We make the link to old work of Davis and Burstein (Stoch Stoch Rep 40:203–256, 1992) and then prove a continuous-time generalization of Roger’s duality formula [SIAM J Control Optim 46:1116–1132, 2007]. The generic case of controlled volatility is seen to give trivial duality bounds, and explains the focus in Burstein–Davis’ (and this) work on controlled drift. Our study of controlled rough differential equations also relates to work of Mazliak and Nourdin (Stoch Dyn 08:23, 2008).

  12. Path modeling and process control

    DEFF Research Database (Denmark)

    Høskuldsson, Agnar; Rodionova, O.; Pomerantsev, A.

    2007-01-01

    and having three or more stages. The methods are applied to a process control of a multi-stage production process having 25 variables and one output variable. When moving along the process, variables change their roles. It is shown how the methods of path modeling can be applied to estimate variables...... be performed regarding the foreseeable output property y, and with respect to an admissible range of correcting actions for the parameters of the next stage. In this paper the basic principles of path modeling is presented. The mathematics is presented for processes having only one stage, having two stages...... of the next stage with the purpose of obtaining optimal or almost optimal quality of the output variable. An important aspect of the methods presented is the possibility of extensive graphic analysis of data that can provide the engineer with a detailed view of the multi-variate variation in data....

  13. Factorization-algebraization-path integration

    International Nuclear Information System (INIS)

    Inomata, A.; Wilson, R.

    1986-01-01

    The authors review the method of factorization proposed by Schroedinger of a quantum mechanical second-order linear differential equation into a product of two first-order differential operators, often referred to as ladder operators, as well as the modifications made to Schroedinger's method by Infeld and Hull. They then review the group theoretical treatments proposed by Miller of the Schroedinger-Infeld-Hull factorizations and go on to demonstrate the application of dynamical symmetry to path integral calculations. 30 references

  14. The path of code linting

    CERN Multimedia

    CERN. Geneva

    2017-01-01

    Join the path of code linting and discover how it can help you reach higher levels of programming enlightenment. Today we will cover how to embrace code linters to offload cognitive strain on preserving style standards in your code base as well as avoiding error-prone constructs. Additionally, I will show you the journey ahead for integrating several code linters in the programming tools your already use with very little effort.

  15. Career path for operations personnel

    International Nuclear Information System (INIS)

    Asher, J.A.

    1985-01-01

    This paper explains how selected personnel can now obtain a Bachelor of Science degree in Physics with a Nuclear Power Operations option. The program went into effect the Fall of 1984. Another program was worked out in 1982 whereby students attending the Nuclear Operators Training Program could obtain an Associates of Science degree in Mechanical Engineering Technology at the end of two years of study. This paper presents tables and charts which describe these programs and outline the career path for operators

  16. Conditionally solvable path integral problems

    International Nuclear Information System (INIS)

    Grosche, C.

    1995-05-01

    Some specific conditionally exactly solvable potentials are discussed within the path integral formalism. They generalize the usually known potentials by the incorporation of a fractional power behaviour and strongly anharmonic terms. We find four different kinds of such potentials, the first is related to the Coulomb potential, the second is an anharmonic confinement potential, and the third and the fourth are related to the Manning-Rosen potential. (orig.)

  17. Path integrals in curvilinear coordinates

    International Nuclear Information System (INIS)

    Prokhorov, L.V.

    1984-01-01

    Integration limits are studied for presenting the path integral curvilinear coordinates. For spherical (and topoloqically equivalent) coordinates it is shown that in formulas involving classical action in the exponent integration over all variables should be carried out within infinite limits. Another peculiarity is associated with appearance of the operator q which provides a complete definition of the wave functions out of the physical region. arguments are given upporting the validity of the cited statament in the general case

  18. Polygonal-path approximations on the path spaces of quantum-mechanical systems: properties of the polygonal paths

    International Nuclear Information System (INIS)

    Exner, P.; Kolerov, G.I.

    1981-01-01

    Properties of the subset of polygonal paths in the Hilbert space H of paths referring to a d-dimensional quantum-mechanical system are examined. Using the reproduction kernel technique we prove that each element of H is approximated by polygonal paths uniformly with respect to the ''norm'' of time-interval partitions. This result will be applied in the second part of the present paper to prove consistency of the uniform polygonal-path extension of the Feynman maps [ru

  19. Path Integrals in Quantum Mechanics

    International Nuclear Information System (INIS)

    Chetouani, L

    2005-01-01

    By treating path integrals the author, in this book, places at the disposal of the reader a modern tool for the comprehension of standard quantum mechanics. Thus the most important applications, such as the tunnel effect, the diffusion matrix, etc, are presented from an original point of view on the action S of classical mechanics while having it play a central role in quantum mechanics. What also emerges is that the path integral describes these applications more richly than are described traditionally by differential equations, and consequently explains them more fully. The book is certainly of high quality in all aspects: original in presentation, rigorous in the demonstrations, judicious in the choice of exercises and, finally, modern, for example in the treatment of the tunnel effect by the method of instantons. Moreover, the correspondence that exists between classical and quantum mechanics is well underlined. I thus highly recommend this book (the French version being already available) to those who wish to familiarize themselves with formulation by path integrals. They will find, in addition, interesting topics suitable for exploring further. (book review)

  20. Nonperturbative path integral expansion II

    International Nuclear Information System (INIS)

    Kaiser, H.J.

    1976-05-01

    The Feynman path integral representation of the 2-point function for a self-interacting Bose field is investigated using an expansion ('Path Integral Expansion', PIE) of the exponential of the kinetic term of the Lagrangian. This leads to a series - illustrated by a graph scheme - involving successively a coupling of more and more points of the lattice space commonly employed in the evaluation of path integrals. The values of the individual PIE graphs depend of course on the lattice constant. Two methods - Pade approximation and Borel-type extrapolation - are proposed to extract information about the continuum limit from a finite-order PIE. A more flexible PIE is possible by expanding besides the kinetic term a suitably chosen part of the interaction term too. In particular, if the co-expanded part is a mass term the calculation becomes only slightly more complicated than in the original formulation and the appearance of the graph scheme is unchanged. A significant reduction of the number of graphs and an improvement of the convergence of the PIE can be achieved by performing certain sums over an infinity of graph elements. (author)

  1. Distribution definition of path integrals

    International Nuclear Information System (INIS)

    Kerler, W.

    1979-01-01

    By starting from quantum mechanics it turns out that a rather general definition of quantum functional integrals can be given which is based on distribution theory. It applies also to curved space and provides clear rules for non-linear transformations. The refinements necessary in usual definitions of path integrals are pointed out. Since the quantum nature requires special care with time sequences, it is not the classical phase space which occurs in the phase-space form of the path integral. Feynman's configuration-space form only applies to a highly specialized situation, and therefore is not a very advantageous starting point for general investigations. It is shown that the commonly used substitutions of variables do not properly account for quantum effects. The relation to the traditional ordering problem is clarified. The distribution formulation has allowed to treat constrained systems directly at the quantum level, to complete the path integral formulation of the equivalence theorem, and to define functional integrals also for space translation after the transition to fields. (orig.)

  2. Cooperative path planning of unmanned aerial vehicles

    CERN Document Server

    Tsourdos, Antonios; Shanmugavel, Madhavan

    2010-01-01

    An invaluable addition to the literature on UAV guidance and cooperative control, Cooperative Path Planning of Unmanned Aerial Vehicles is a dedicated, practical guide to computational path planning for UAVs. One of the key issues facing future development of UAVs is path planning: it is vital that swarm UAVs/ MAVs can cooperate together in a coordinated manner, obeying a pre-planned course but able to react to their environment by communicating and cooperating. An optimized path is necessary in order to ensure a UAV completes its mission efficiently, safely, and successfully. Focussing on the path planning of multiple UAVs for simultaneous arrival on target, Cooperative Path Planning of Unmanned Aerial Vehicles also offers coverage of path planners that are applicable to land, sea, or space-borne vehicles. Cooperative Path Planning of Unmanned Aerial Vehicles is authored by leading researchers from Cranfield University and provides an authoritative resource for researchers, academics and engineers working in...

  3. Electron Inelastic-Mean-Free-Path Database

    Science.gov (United States)

    SRD 71 NIST Electron Inelastic-Mean-Free-Path Database (PC database, no charge)   This database provides values of electron inelastic mean free paths (IMFPs) for use in quantitative surface analyses by AES and XPS.

  4. Time optimal paths for high speed maneuvering

    Energy Technology Data Exchange (ETDEWEB)

    Reister, D.B.; Lenhart, S.M.

    1993-01-01

    Recent theoretical results have completely solved the problem of determining the minimum length path for a vehicle with a minimum turning radius moving from an initial configuration to a final configuration. Time optimal paths for a constant speed vehicle are a subset of the minimum length paths. This paper uses the Pontryagin maximum principle to find time optimal paths for a constant speed vehicle. The time optimal paths consist of sequences of axes of circles and straight lines. The maximum principle introduces concepts (dual variables, bang-bang solutions, singular solutions, and transversality conditions) that provide important insight into the nature of the time optimal paths. We explore the properties of the optimal paths and present some experimental results for a mobile robot following an optimal path.

  5. Classical and quantum dynamics from classical paths to path integrals

    CERN Document Server

    Dittrich, Walter

    2016-01-01

    Graduate students who want to become familiar with advanced computational strategies in classical and quantum dynamics will find here both the fundamentals of a standard course and a detailed treatment of the time-dependent oscillator, Chern-Simons mechanics, the Maslov anomaly and the Berry phase, to name a few. Well-chosen and detailed examples illustrate the perturbation theory, canonical transformations, the action principle and demonstrate the usage of path integrals. This new edition has been revised and enlarged with chapters on quantum electrodynamics, high energy physics, Green’s functions and strong interaction.

  6. Path Integral Formulation of Anomalous Diffusion Processes

    OpenAIRE

    Friedrich, Rudolf; Eule, Stephan

    2011-01-01

    We present the path integral formulation of a broad class of generalized diffusion processes. Employing the path integral we derive exact expressions for the path probability densities and joint probability distributions for the class of processes under consideration. We show that Continuous Time Random Walks (CTRWs) are included in our framework. A closed expression for the path probability distribution of CTRWs is found in terms of their waiting time distribution as the solution of a Dyson ...

  7. Partial Path Column Generation for the ESPPRC

    DEFF Research Database (Denmark)

    Jepsen, Mads Kehlet; Petersen, Bjørn

    This talk introduces a decomposition of the Elementary Shortest Path Problem with Resource Constraints(ESPPRC), where the path is combined by smaller sub paths. We show computational result by comparing different approaches for the decomposition and compare the best of these with existing algorit...

  8. Strain path dependency in metal plasticity

    NARCIS (Netherlands)

    Viatkina, E.M.; Brekelmans, W.A.M.; Geers, M.G.D.

    2003-01-01

    A change in strain path has a significant effect on the mechanical response of metals. Strain path change effects physically originate from a complex microstructure evolution. This paper deals with the contribution of cell structure evolution to the strain path change effect. The material with cells

  9. Nurses' attitude and intention of medication administration error reporting.

    Science.gov (United States)

    Hung, Chang-Chiao; Chu, Tsui-Ping; Lee, Bih-O; Hsiao, Chia-Chi

    2016-02-01

    The Aims of this study were to explore the effects of nurses' attitudes and intentions regarding medication administration error reporting on actual reporting behaviours. Underreporting of medication errors is still a common occurrence. Whether attitude and intention towards medication administration error reporting connect to actual reporting behaviours remain unclear. This study used a cross-sectional design with self-administered questionnaires, and the theory of planned behaviour was used as the framework for this study. A total of 596 staff nurses who worked in general wards and intensive care units in a hospital were invited to participate in this study. The researchers used the instruments measuring nurses' attitude, nurse managers' and co-workers' attitude, report control, and nurses' intention to predict nurses' actual reporting behaviours. Data were collected from September-November 2013. Path analyses were used to examine the hypothesized model. Of the 596 nurses invited to participate, 548 (92%) completed and returned a valid questionnaire. The findings indicated that nurse managers' and co-workers' attitudes are predictors for nurses' attitudes towards medication administration error reporting. Nurses' attitudes also influenced their intention to report medication administration errors; however, no connection was found between intention and actual reporting behaviour. The findings reflected links among colleague perspectives, nurses' attitudes, and intention to report medication administration errors. The researchers suggest that hospitals should increase nurses' awareness and recognition of error occurrence. Regardless of nurse managers' and co-workers' attitudes towards medication administration error reporting, nurses are likely to report medication administration errors if they detect them. Management of medication administration errors should focus on increasing nurses' awareness and recognition of error occurrence. © 2015 John Wiley & Sons Ltd.

  10. Space charge models and PATH

    International Nuclear Information System (INIS)

    Wald, H.B.

    1990-01-01

    The 'PATH' codes are used to design magnetic optics subsystems for neutral particle beam systems. They include a 2-1/2D and three 3-D space charge models, two of which have recently been added. This paper describes the 3-D models and reports on preliminary benchmark studies in which these models are checked for stability as the cloud size is varied and for consistency with each other. Differences between the models are investigated and the computer time requirements for running these models are established

  11. Innovation paths in wind power

    DEFF Research Database (Denmark)

    Lema, Rasmus; Nordensvärd, Johan; Urban, Frauke

    Denmark and Germany both make substantial investments in low carbon innovation, not least in the wind power sector. These investments in wind energy are driven by the twin objectives of reducing carbon emissions and building up international competitive advantage. Support for wind power dates back....... The ‘Danish Design’ remains the global standard. The direct drive design, while uncommon in Denmark, dominates the German installation base. Direct drive technology has thus emerged as a distinctly German design and sub-trajectory within the overall technological innovation path. When it comes to organising...... global interconnectedness of wind technology markets and the role of emerging new players, such as China and India....

  12. Uncommon paths in quantum physics

    CERN Document Server

    Kazakov, Konstantin V

    2014-01-01

    Quantum mechanics is one of the most fascinating, and at the same time most controversial, branches of contemporary science. Disputes have accompanied this science since its birth and have not ceased to this day. Uncommon Paths in Quantum Physics allows the reader to contemplate deeply some ideas and methods that are seldom met in the contemporary literature. Instead of widespread recipes of mathematical physics, based on the solutions of integro-differential equations, the book follows logical and partly intuitional derivations of non-commutative algebra. Readers can directly penetrate the

  13. Antecedents and consequences of work engagement among nurses.

    Science.gov (United States)

    Sohrabizadeh, Sanaz; Sayfouri, Nasrin

    2014-11-01

    Engaged nurses have high levels of energy and are enthusiastic about their work which impacts quality of health care services. However, in the context of Iran, due to observed burnout, work engagement among nurses necessitates immediate exploration. This investigation aimed to identify a suitable work engagement model in nursing profession in hospitals according to the hypothesized model and to determine antecedents and consequences related to work engagement among nurses. In this cross-sectional study, a questionnaire was given to 279 randomly-selected nurses working in two general teaching hospitals of Shiraz University of Medical Sciences (Shiraz, Iran) to measure antecedents and consequences of work engagement using the Saks's (2005) model. Structural Equation Modeling was used to examine the model fitness. Two paths were added using LISREL software. The resulting model showed good fitness indices (χ(2) = 23.62, AGFI = 0.93, CFI = 0.97, RMSEA = 0.07) and all the coefficients of the paths were significant (t ≥ 2, t ≤ -2). A significant correlation was found between work engagement and model variables. Paying adequate attention to the antecedents of work engagement can enhance the quality of performance among nurses. Additionally, rewards, organizational and supervisory supports, and job characteristics should be taken into consideration to establish work engagement among nurses. Further researches are required to identify other probable antecedents and consequences of nursing work engagement, which might be related to specific cultural settings.

  14. [Nurse practitioner's capability].

    Science.gov (United States)

    Cheng, Chen-Hsiu; Chen, Shih-Chien

    2007-10-01

    Nurse practitioner development affirms the social value of nursing staff and promotes the professional image of nursing. As the medical environment and doctor-patient relations change, how should a nurse practitioner carry out clinical care? Apart from having foundations in medical knowledge and high-quality nursing techniques, nurse practitioners must have other clinical skills, in order to break out of their former difficult position, promote nursing competitiveness, provide a multi -dimensional service, win the people's acclamation and develop international links.

  15. Welding Robot Collision-Free Path Optimization

    Directory of Open Access Journals (Sweden)

    Xuewu Wang

    2017-02-01

    Full Text Available Reasonable welding path has a significant impact on welding efficiency, and a collision-free path should be considered first in the process of welding robot path planning. The shortest path length is considered as an optimization objective, and obstacle avoidance is considered as the constraint condition in this paper. First, a grid method is used as a modeling method after the optimization objective is analyzed. For local collision-free path planning, an ant colony algorithm is selected as the search strategy. Then, to overcome the shortcomings of the ant colony algorithm, a secondary optimization is presented to improve the optimization performance. Finally, the particle swarm optimization algorithm is used to realize global path planning. Simulation results show that the desired welding path can be obtained based on the optimization strategy.

  16. Integral transforms of the quantum mechanical path integral: Hit function and path-averaged potential

    Science.gov (United States)

    Edwards, James P.; Gerber, Urs; Schubert, Christian; Trejo, Maria Anabel; Weber, Axel

    2018-04-01

    We introduce two integral transforms of the quantum mechanical transition kernel that represent physical information about the path integral. These transforms can be interpreted as probability distributions on particle trajectories measuring respectively the relative contribution to the path integral from paths crossing a given spatial point (the hit function) and the likelihood of values of the line integral of the potential along a path in the ensemble (the path-averaged potential).

  17. Classical and quantum dynamics from classical paths to path integrals

    CERN Document Server

    Dittrich, Walter

    2017-01-01

    Graduate students who wish to become familiar with advanced computational strategies in classical and quantum dynamics will find in this book both the fundamentals of a standard course and a detailed treatment of the time-dependent oscillator, Chern-Simons mechanics, the Maslov anomaly and the Berry phase, to name just a few topics. Well-chosen and detailed examples illustrate perturbation theory, canonical transformations and the action principle, and demonstrate the usage of path integrals. The fifth edition has been revised and enlarged to include chapters on quantum electrodynamics, in particular, Schwinger’s proper time method and the treatment of classical and quantum mechanics with Lie brackets and pseudocanonical transformations. It is shown that operator quantum electrodynamics can be equivalently described with c-numbers, as demonstrated by calculating the propagation function for an electron in a prescribed classical electromagnetic field.

  18. Men student nurses: the nursing education experience.

    Science.gov (United States)

    Meadus, Robert J; Twomey, J Creina

    2011-01-01

    This study explored the phenomenon of being a male in a predominately female-concentrated undergraduate baccalaureate nursing program. Men remain a minority within the nursing profession. Nursing scholars have recommended that the profile of nursing needs to change to meet the diversity of the changing population, and the shortfall of the worldwide nursing shortage. However, efforts by nursing schools and other stakeholders have been conservative toward recruitment of men. Using Giorgi's method, 27 students from a collaborative nursing program took part in this qualitative, phenomenological study. Focus groups were undertaken to gather data and to develop descriptions of the experience. Five themes highlighted men students' experience of being in a university nursing program: choosing nursing, becoming a nurse, caring within the nursing role, gender-based stereotypes, and visible/invisible. The experiences of the students revealed issues related to gender bias in nursing education, practice areas, and societal perceptions that nursing is not a suitable career choice for men. Implications for nurse educators and strategies for the recruitment and retention of men nursing students are discussed. © 2011 Wiley Periodicals, Inc.

  19. Nursing shortages and international nurse migration.

    Science.gov (United States)

    Ross, S J; Polsky, D; Sochalski, J

    2005-12-01

    The United Kingdom and the United States are among several developed countries currently experiencing nursing shortages. While the USA has not yet implemented policies to encourage nurse immigration, nursing shortages will likely result in the growth of foreign nurse immigration to the USA. Understanding the factors that drive the migration of nurses is critical as the USA exerts more pull on the foreign nurse workforce. To predict the international migration of nurses to the UK using widely available data on country characteristics. The Nursing and Midwifery Council serves as the source of data on foreign nurse registrations in the UK between 1998 and 2002. We develop and test a regression model that predicts the number of foreign nurse registrants in the UK based on source country characteristics. We collect country-level data from sources such as the World Bank and the World Health Organization. The shortage of nurses in the UK has been accompanied by massive and disproportionate growth in the number of foreign nurses from poor countries. Low-income, English-speaking countries that engage in high levels of bilateral trade experience greater losses of nurses to the UK. Poor countries seeking economic growth through international trade expose themselves to the emigration of skilled labour. This tendency is currently exacerbated by nursing shortages in developed countries. Countries at risk for nurse emigration should adjust health sector planning to account for expected losses in personnel. Moreover, policy makers in host countries should address the impact of recruitment on source country health service delivery.

  20. The dragon of Kaohsiung. The new soccer stadium in Taiwan's second biggest city will generate more than one million kWh of solar power per annum; Der Drache von Kaohsiung. Das neue Stadion in Taiwans zweitgroesster Stadt soll ueber eine Million Kilowattstunden Solarstrom jaehrlich liefern

    Energy Technology Data Exchange (ETDEWEB)

    Hirsch, Matthew; Wagner, Neelke

    2009-10-15

    The new stadium at Kaohsiung has a spectacular architecture which raised attention world-wide. The public and experts call it the ''flying dragon''. Apart from the sports fans, also the fans of photovoltaic power generation will profit: with an installed capacity of 1 MW, it has the biggest photovoltaic system of any sports facility in the world. (orig.)

  1. Leaders from Nursing's History.

    Science.gov (United States)

    Fondiller, Shirley H.; And Others

    1995-01-01

    Looks at the lives and accomplishments of four leaders in professional nursing: (1) Loretta Ford, who championed the cause of nurse practitioners; (2) Mable Staupers, a pioneer in community health and nursing; (3) Janet Geister, a leader in private nursing; and (4) Isabel Stewart, who led the movement to standardize nursing education. (JOW)

  2. Integrated assignment and path planning

    Science.gov (United States)

    Murphey, Robert A.

    2005-11-01

    A surge of interest in unmanned systems has exposed many new and challenging research problems across many fields of engineering and mathematics. These systems have the potential of transforming our society by replacing dangerous and dirty jobs with networks of moving machines. This vision is fundamentally separate from the modern view of robotics in that sophisticated behavior is realizable not by increasing individual vehicle complexity, but instead through collaborative teaming that relies on collective perception, abstraction, decision making, and manipulation. Obvious examples where collective robotics will make an impact include planetary exploration, space structure assembly, remote and undersea mining, hazardous material handling and clean-up, and search and rescue. Nonetheless, the phenomenon driving this technology trend is the increasing reliance of the US military on unmanned vehicles, specifically, aircraft. Only a few years ago, following years of resistance to the use of unmanned systems, the military and civilian leadership in the United States reversed itself and have recently demonstrated surprisingly broad acceptance of increasingly pervasive use of unmanned platforms in defense surveillance, and even attack. However, as rapidly as unmanned systems have gained acceptance, the defense research community has discovered the technical pitfalls that lie ahead, especially for operating collective groups of unmanned platforms. A great deal of talent and energy has been devoted to solving these technical problems, which tend to fall into two categories: resource allocation of vehicles to objectives, and path planning of vehicle trajectories. An extensive amount of research has been conducted in each direction, yet, surprisingly, very little work has considered the integrated problem of assignment and path planning. This dissertation presents a framework for studying integrated assignment and path planning and then moves on to suggest an exact

  3. Leadership styles in nursing management: implications for staff outcomes

    Directory of Open Access Journals (Sweden)

    James Avoka Asamani

    2016-03-01

    Full Text Available Introduction: Nursing is a people-centred profession and therefore the issue of leadership is crucial for success. Nurse managers’ leadership styles are believed to be important determinant of nurses’ job satisfaction and retention. In the wake of a global nursing shortage, maldistribution of health workforce, increasing healthcare costs and expanding workload, it has become imperative to examine the role of nurse managers’ leadership styles on their staff outcomes. Using the Path-Goal Leadership theory as an organised framework, this study investigated the leadership styles of nurse managers and how they influence the nursing staff job satisfaction and intentions to stay at their current workplaces.Methods: The study employed a cross-sectional survey design to collect data from a sample of 273 nursing staff in five hospitals in the Eastern Region of Ghana. Descriptive and regression analyses were performed using SPSS version 18.0Results: Nurse managers used different leadership styles depending on the situation, but were more inclined to the supportive leadership style, followed by the achievement-oriented leadership style and participative leadership style. The nursing staff exhibited moderate levels of job satisfaction. The nurse managers’ leadership styles together explained 29% of the variance in the staff job satisfaction. The intention to stay at the current workplace was low (2.64 out of 5 among the nursing staff. More than half (51.7% of the nursing staff intended to leave their current workplaces, and 20% of them were actively seeking the opportunities to leave. The nurse managers’ leadership styles statistically explained 13.3% of the staff intention to stay at their current job position.Conclusions: These findings have enormous implications for nursing practice, management, education, and human resource for health policy that could lead to better staff retention and job satisfaction, and ultimately improve patient care.  

  4. Path Creation, Path Dependence and Breaking Away from the Path: Re-Examining the Case of Nokia

    OpenAIRE

    Wang, Jens; Hedman, Jonas; Tuunainen, Virpi Kristiina

    2016-01-01

    The explanation of how and why firms succeed or fail is a recurrent research challenge. This is particularly important in the context of technological innovations. We focus on the role of historical events and decisions in explaining such success and failure. Using a case study of Nokia, we develop and extend a multi-layer path dependence framework. We identify four layers of path dependence: technical, strategic and leadership, organizational, and external collaboration. We show how path dep...

  5. Rainbow paths with prescribed ends

    DEFF Research Database (Denmark)

    Alishahi, Meysam; Taherkhani, Ali; Thomassen, Carsten

    2011-01-01

    vertices. We also prove that every connected graph with atleast one edge has a proper k-coloring (for some k) such that every vertex of color i has a neighbor of color i + 1 (mod k). C-5 shows that k may have to be greater than the chromatic number. However, if the graph is connected, infinite and locally...... finite, and has finite chromatic number, then the k-coloring exists for every k >= chi(G). In fact, the k-coloring can be chosen such that every vertex is a starting vertex of an infinite path such that the color increases by 1 (mod k) along each edge. The method is based on the circular chromatic number...... chi(c)(G). In particular, we verify the above conjecture for all connected graphs whose circular chromatic number equals the chromatic number....

  6. Counting paths with Schur transitions

    Energy Technology Data Exchange (ETDEWEB)

    Díaz, Pablo [Department of Physics and Astronomy, University of Lethbridge, Lethbridge, Alberta, T1K 3M4 (Canada); Kemp, Garreth [Department of Physics, University of Johannesburg, P.O. Box 524, Auckland Park 2006 (South Africa); Véliz-Osorio, Alvaro, E-mail: aveliz@gmail.com [Mandelstam Institute for Theoretical Physics, University of the Witwatersrand, WITS 2050, Johannesburg (South Africa); School of Physics and Astronomy, Queen Mary, University of London, Mile End Road, London E1 4NS (United Kingdom)

    2016-10-15

    In this work we explore the structure of the branching graph of the unitary group using Schur transitions. We find that these transitions suggest a new combinatorial expression for counting paths in the branching graph. This formula, which is valid for any rank of the unitary group, reproduces known asymptotic results. We proceed to establish the general validity of this expression by a formal proof. The form of this equation strongly hints towards a quantum generalization. Thus, we introduce a notion of quantum relative dimension and subject it to the appropriate consistency tests. This new quantity finds its natural environment in the context of RCFTs and fractional statistics; where the already established notion of quantum dimension has proven to be of great physical importance.

  7. Student nurses as school nurse extenders.

    Science.gov (United States)

    Rossman, Carol L; Dood, Florence V; Squires, Darcy A

    2012-12-01

    The severe underuse of school nurses leaves students with unaddressed health needs that impact their safety and learning ability. An undergraduate pediatric clinical focusing on nursing students and the role of a school nurse in an elementary school setting can be a unique approach to combining the needs of school children and educating student nurses. One school of nursing created such a project to help address these needs and collect data on the activities student nurses performed in school nurse role and their impact on student health. This project serves as both a practice improvement project and an innovation in pediatric clinical education. The purposes of this project were to quantify baccalaureate nursing student activities related to the school nurse role and to evaluate the results that have the potential to impact on student health in an urban elementary school. Copyright © 2012 Elsevier Inc. All rights reserved.

  8. Pediatric Endocrinology Nurses Society

    Science.gov (United States)

    ... Join Now International Welcome to PENS The Pediatric Endocrinology Nursing Society (PENS) is committed to the development ... nurses in the art and science of pediatric endocrinology nursing. Learn More Text1 2018 PENS Call for ...

  9. Strategic Team AI Path Plans: Probabilistic Pathfinding

    Directory of Open Access Journals (Sweden)

    Tng C. H. John

    2008-01-01

    Full Text Available This paper proposes a novel method to generate strategic team AI pathfinding plans for computer games and simulations using probabilistic pathfinding. This method is inspired by genetic algorithms (Russell and Norvig, 2002, in that, a fitness function is used to test the quality of the path plans. The method generates high-quality path plans by eliminating the low-quality ones. The path plans are generated by probabilistic pathfinding, and the elimination is done by a fitness test of the path plans. This path plan generation method has the ability to generate variation or different high-quality paths, which is desired for games to increase replay values. This work is an extension of our earlier work on team AI: probabilistic pathfinding (John et al., 2006. We explore ways to combine probabilistic pathfinding and genetic algorithm to create a new method to generate strategic team AI pathfinding plans.

  10. Tool path in torus tool CNC machining

    Directory of Open Access Journals (Sweden)

    XU Ying

    2016-10-01

    Full Text Available This paper is about tool path in torus tool CNC machining.The mathematical model of torus tool is established.The tool path planning algorithm is determined through calculation of the cutter location,boundary discretization,calculation of adjacent tool path and so on,according to the conversion formula,the cutter contact point will be converted to the cutter location point and then these points fit a toolpath.Lastly,the path planning algorithm is implemented by using Matlab programming.The cutter location points for torus tool are calculated by Matlab,and then fit these points to a toolpath.While using UG software,another tool path of free surface is simulated of the same data.It is drew compared the two tool paths that using torus tool is more efficient.

  11. Developing nursing care plans.

    Science.gov (United States)

    Ballantyne, Helen

    2016-02-24

    This article aims to enhance nurses' understanding of nursing care plans, reflecting on the past, present and future use of care planning. This involves consideration of the central theories of nursing and discussion of nursing models and the nursing process. An explanation is provided of how theories of nursing may be applied to care planning, in combination with clinical assessment tools, to ensure that care plans are context specific and patient centred.

  12. Design of Active N-path Filters

    NARCIS (Netherlands)

    Darvishi, M.; van der Zee, Ronan A.R.; Nauta, Bram

    2013-01-01

    A design methodology for synthesis of active N-path bandpass filters is introduced. Based on this methodology, a 0.1-to-1.2 GHz tunable 6th-order N-path channel-select filter in 65 nm LP CMOS is introduced. It is based on coupling N-path filters with gyrators, achieving a “flat‿ passband shape and

  13. Path integrals and geometry of trajectories

    International Nuclear Information System (INIS)

    Blau, M.; Keski-Vakkuri, E.; Niemi, A.J.

    1990-01-01

    A geometrical interpretation of path integrals is developed in the space of trajectories. This yields a supersymmetric formulation of a generic path integral, with the supersymmetry resembling the BRST supersymmetry of a first class constrained system. If the classical equation of motion is a Killing vector field in the space of trajectories, the supersymmetry localizes the path integral to classical trajectories and the WKB approximation becomes exact. This can be viewed as a path integral generalization of the Duistermaat-Heckman theorem, which states the conditions for the exactness of the WKB approximation for integrals in a compact phase space. (orig.)

  14. Path integrals for arbitrary canonical transformations

    International Nuclear Information System (INIS)

    Oliveira, L.A.R. de.

    1980-01-01

    Some aspects of the path integral formulation of quantum mechanics are studied. This formalism is generalized to arbitrary canonical transformations, by means of an association between path integral probalility amplitudes and classical generators of transformations, analogous to the usual Hamiltonian time development phase space expression. Such association turns out to be equivalent to the Weyl quantization rule, and it is also shown that this formalism furnishes a path integral representation for a Lie algebra of a given set of classical generators. Some physical considerations about the path integral quantization procedure and about the relationship between classical and quantum dynamical structures are also discussed. (Author) [pt

  15. Techniques and applications of path integration

    CERN Document Server

    Schulman, L S

    2005-01-01

    A book of techniques and applications, this text defines the path integral and illustrates its uses by example. It is suitable for advanced undergraduates and graduate students in physics; its sole prerequisite is a first course in quantum mechanics. For applications requiring specialized knowledge, the author supplies background material.The first part of the book develops the techniques of path integration. Topics include probability amplitudes for paths and the correspondence limit for the path integral; vector potentials; the Ito integral and gauge transformations; free particle and quadra

  16. Symbolic PathFinder v7

    DEFF Research Database (Denmark)

    Luckow, Kasper Søe; Păsăreanu, Corina

    2014-01-01

    We describe Symbolic PathFinder v7 in terms of its updated design addressing the changes of Java PathFinder v7 and of its new optimization when computing path conditions. Furthermore, we describe the Symbolic Execution Tree Extension; a newly added feature that allows for outputting the symbolic...... execution tree that characterizes the execution paths covered during symbolic execution. The new extension can be tailored to the needs of subsequent analyses/processing facilities, and we demonstrate this by presenting SPF-Visualizer, which is a tool for customizable visualization of the symbolic execution...

  17. Nursing specialty and burnout.

    Science.gov (United States)

    Browning, Laura; Ryan, Carey S; Thomas, Scott; Greenberg, Martin; Rolniak, Susan

    2007-03-01

    We examined the relationship between perceived control and burnout among three nursing specialties: nurse practitioners, nurse managers, and emergency nurses. Survey data were collected from 228 nurses from 30 states. Findings indicated that emergency nurses had the least control and the highest burnout, whereas nurse practitioners had the most control and the least burnout. Mediational analyses showed that expected control, hostility, and stressor frequency explained differences between specialties in burnout. The implications of these findings for interventions that reduce burnout and promote nursing retention are discussed.

  18. E-nursing documentation as a tool for quality assurance.

    Science.gov (United States)

    Rajkovic, Vladislav; Sustersic, Olga; Rajkovic, Uros

    2006-01-01

    The article presents the results of a project with which we describe the reengineering of nursing documentation. Documentation in nursing is an efficient tool for ensuring quality health care and consequently quality patient treatment along the whole clinical path. We have taken into account the nursing process and patient treatment based on Henderson theoretical model of nursing that consists of 14 basic living activities. The model of new documentation enables tracing, transparency, selectivity, monitoring and analyses. All these factors lead to improvements of a health system as well as to improved safety of patients and members of nursing teams. Thus the documentation was developed for three health care segments: secondary and tertiary level, dispensaries and community health care. The new quality introduced to the documentation process by information and communication technology is presented by a database model and a software prototype for managing documentation.

  19. REGISTERED NURSES' (RNs) PERCEPTION OF THE NURSING ...

    African Journals Online (AJOL)

    PROF. BARTH EKWEME

    health worker performance and patient outcome. In 2009, International ... benefits and incentives for nurses in order to guarantee nurses wellbeing and retention in the profession. ..... Flexibility / demand for work in different areas. 8. 4.8. 23.

  20. Nurse Bullying: Impact on Nurses' Health.

    Science.gov (United States)

    Sauer, Penny A; McCoy, Thomas P

    2017-12-01

    Workplace bullying has been experienced by 27% to 80% of nurses who have participated in studies. Bullying behaviors negatively impact the health of nurses. This study examined whether nurses' resilience had an impact on the effects of bullying on the nurse's health. This cross-sectional descriptive study surveyed licensed registered nurses in one state. The sample ( N = 345) was predominately female (89%) and Caucasian (84%), with an average age of 46.6 years. In this sample, 40% of nurses were bullied. Higher incidence of bullying was associated with lower physical health scores ( p = .002) and lower mental health scores ( p = .036). Nurses who are bullied at work experience lower physical and mental health, which can decrease the nurses' quality of life and impede their ability to deliver safe, effective patient care.

  1. Analysis of Nurse's Clinical Education Performance based on Work Theory and The Indicator of Competence

    Directory of Open Access Journals (Sweden)

    Srinalesti Mahanani

    2016-09-01

    Full Text Available Introduction: Clinical Learning is a process of transformation of the student to become a professional nurse. Clinical Nurse Educator contributes to improve the quality of clinical learning because of variety of roles ranging from planning, implementing and evaluating learning clinical practice. Improving the quality of clinical practice learning, can be reached by improving the performance of Clinical Nurse Educator. The aim of this study was to know the effect of psychological variables and organizational variables to the competence and performance of Clinical Nurse Educators. Sample was Clinical Nurse Educators who work inpatient wards at Kediri Baptist Hospital inpatient wards. Method: This study was conducted in two stages. Phase I measure the competence and performance of Clinical Nurse Educator by Supervisor and students, as well as psychological variables and organizational variables by using questionnaires. Phase II was done by Focused Group Discussion to discuss about the variables that affect Clinical Nurse Educator performance. Data processed using Partial Least Square with α = 0.05, path coefficient = 0.5 and t table = 1.96. Result: The results of this research is showed that Performance Nurse Educator can be improved by increasing Individual Competence with path coefficient= 0.600 and t = 6.741. The individual competence will be increase by improving pscychological aspect nurse educator such as perception, personal aspect, motivation, learning skill and attitude with path coefficient = 0.518 and t = 2.715. Psycological Aspect can be increasing by improving Organization Variable such as Organization Resource, Salary, Organization Structure and Job Description with path coefficient = 0.825 and t = 19.658. Discussion: The conclusion of this result that increase of nurse educator competence and performance can be effort by improving psycological aspect and organizational variable Keywords: competence, performance, clinical nurse

  2. Joint modeling of constrained path enumeration and path choice behavior: a semi-compensatory approach

    DEFF Research Database (Denmark)

    Kaplan, Sigal; Prato, Carlo Giacomo

    2010-01-01

    A behavioural and a modelling framework are proposed for representing route choice from a path set that satisfies travellers’ spatiotemporal constraints. Within the proposed framework, travellers’ master sets are constructed by path generation, consideration sets are delimited according to spatio...

  3. Decision paths in complex tasks

    Science.gov (United States)

    Galanter, Eugene

    1991-01-01

    Complex real world action and its prediction and control has escaped analysis by the classical methods of psychological research. The reason is that psychologists have no procedures to parse complex tasks into their constituents. Where such a division can be made, based say on expert judgment, there is no natural scale to measure the positive or negative values of the components. Even if we could assign numbers to task parts, we lack rules i.e., a theory, to combine them into a total task representation. We compare here two plausible theories for the amalgamation of the value of task components. Both of these theories require a numerical representation of motivation, for motivation is the primary variable that guides choice and action in well-learned tasks. We address this problem of motivational quantification and performance prediction by developing psychophysical scales of the desireability or aversiveness of task components based on utility scaling methods (Galanter 1990). We modify methods used originally to scale sensory magnitudes (Stevens and Galanter 1957), and that have been applied recently to the measure of task 'workload' by Gopher and Braune (1984). Our modification uses utility comparison scaling techniques which avoid the unnecessary assumptions made by Gopher and Braune. Formula for the utility of complex tasks based on the theoretical models are used to predict decision and choice of alternate paths to the same goal.

  4. Practicality of diversion path analysis

    International Nuclear Information System (INIS)

    Murphey, W.M.; Schleter, J.C.

    1974-07-01

    One can define the safeguards system for nuclear material as the set of all protective actions taken to prevent or to deter attempts to divert nuclear material to unauthorized use. Maintenance of effective safeguards requires a program for routine assessment of plant safeguards systems in terms of their capabilities to satisfy safeguards aims. Plant internal control systems provide capabilities for detection of unprevented diversion and can provide assurance that diversion has not occurred. A procedure called Diversion Path Analysis (DPA) enables routine assessment of the capabilities of internal control systems in this regard and identification of safeguards problem areas in a plant. A framework for safeguards system design is also provided which will allow flexibility to accommodate individual plant circumstances while maintaining acceptable diversion detection capability. The steps of the procedure are described and the practicality of the analytical method is shown by referring to a demonstration test for a high throughput process where plant personnel were major participants. The boundary conditions for the demonstration case are given, along with some conclusions about the general procedure. (U.S.)

  5. Inked Careers: Tattooing Professional Paths

    Directory of Open Access Journals (Sweden)

    Gabriela DeLuca

    2016-12-01

    Full Text Available The concept of career has an interdisciplinary and historical constitution, which includes persons, groups, organizations and society. Given that, we aim to deepen the interactionist notion of career from the understanding of a deviant path, supported by a theory and a method appropriated to the cited call for interdisciplinary approaches. Dilemmas (Hughes, 1958 and conflicts (Hughes, 1937 emerged as important analytical categories. Although necessary, these two concepts were not sufficient to contemplate analyses in their entirety. For this reason we conceptualized a third possibility of controversy during a career: the inquiries. The study followed the Narrative method to analyze objective and subjective changes during a tattoo artist’s career through interviews and informal conversations carried out over 22 months. The discussion presents three main contributions. Theoretically, a new understanding of the concept of careers, linking past, present and future and the idea of non-linearity of experienced and envisioned careers. Methodologically, suggesting orientations for future career studies such as the use of turning points as a methodological tool and the investigation of deviant fields. Finally, our defense of the interactionist perspective as suitable for career studies, since it allows the investigation of deviant elements.

  6. Virtually Nursing: Emerging Technologies in Nursing Education.

    Science.gov (United States)

    Foronda, Cynthia L; Alfes, Celeste M; Dev, Parvati; Kleinheksel, A J; Nelson, Douglas A; OʼDonnell, John M; Samosky, Joseph T

    Augmented reality and virtual simulation technologies in nursing education are burgeoning. Preliminary evidence suggests that these innovative pedagogical approaches are effective. The aim of this article is to present 6 newly emerged products and systems that may improve nursing education. Technologies may present opportunities to improve teaching efforts, better engage students, and transform nursing education.

  7. Two Generations of Path Dependence in Economics?

    DEFF Research Database (Denmark)

    Madsen, Mogens Ove

    2010-01-01

    Even if there is no fully articulated and generally accepted theory of Path Dependence it has eagerly been taken up across a wide range of social sciences – primarily coming from economics. Path Dependence is most of all a metaphor that offers reason to believe, that some political, social...

  8. Cooperative organic mine avoidance path planning

    Science.gov (United States)

    McCubbin, Christopher B.; Piatko, Christine D.; Peterson, Adam V.; Donnald, Creighton R.; Cohen, David

    2005-06-01

    The JHU/APL Path Planning team has developed path planning techniques to look for paths that balance the utility and risk associated with different routes through a minefield. Extending on previous years' efforts, we investigated real-world Naval mine avoidance requirements and developed a tactical decision aid (TDA) that satisfies those requirements. APL has developed new mine path planning techniques using graph based and genetic algorithms which quickly produce near-minimum risk paths for complicated fitness functions incorporating risk, path length, ship kinematics, and naval doctrine. The TDA user interface, a Java Swing application that obtains data via Corba interfaces to path planning databases, allows the operator to explore a fusion of historic and in situ mine field data, control the path planner, and display the planning results. To provide a context for the minefield data, the user interface also renders data from the Digital Nautical Chart database, a database created by the National Geospatial-Intelligence Agency containing charts of the world's ports and coastal regions. This TDA has been developed in conjunction with the COMID (Cooperative Organic Mine Defense) system. This paper presents a description of the algorithms, architecture, and application produced.

  9. Evaluation of Calcine Disposition Path Forward

    International Nuclear Information System (INIS)

    Birrer, S.A.; Heiser, M.B.

    2003-01-01

    This document describes an evaluation of the baseline and two alternative disposition paths for the final disposition of the calcine wastes stored at the Idaho Nuclear Technology and Engineering Center at the Idaho National Engineering and Environmental Laboratory. The pathways are evaluated against a prescribed set of criteria and a recommendation is made for the path forward

  10. Generalized measures and the Feynman path integral

    International Nuclear Information System (INIS)

    Maslov, V.P.; Chebotarev, A.M.

    1976-01-01

    Generalizations are obtained for the earlier results by the authors concerning the inclusion of the Feynmann path integral in the momentum representation into the general integration theory. Feynmann path integrals are considered which do not represent T-products. Generalized Feynmann measure in the configuration representation is introduced

  11. Approximate Shortest Homotopic Paths in Weighted Regions

    KAUST Repository

    Cheng, Siu-Wing; Jin, Jiongxin; Vigneron, Antoine; Wang, Yajun

    2010-01-01

    Let P be a path between two points s and t in a polygonal subdivision T with obstacles and weighted regions. Given a relative error tolerance ε ∈(0,1), we present the first algorithm to compute a path between s and t that can be deformed to P

  12. Paths and cycles in colored graphs

    NARCIS (Netherlands)

    Li, Xueliang; Zhang, Shenggui; Hurink, Johann L.; Pickl, Stefan; Broersma, Haitze J.; Faigle, U.

    2001-01-01

    Let G be an (edge-)colored graph. A path (cycle) is called monochromatic if all the edges of it have the same color, and is called heterochromatic if all the edges of it have different colors. In this note, some sufficient conditions for the existence of monochromatic and heterochromatic paths and

  13. Path Minima Queries in Dynamic Weighted Trees

    DEFF Research Database (Denmark)

    Davoodi, Pooya; Brodal, Gerth Stølting; Satti, Srinivasa Rao

    2011-01-01

    In the path minima problem on a tree, each edge is assigned a weight and a query asks for the edge with minimum weight on a path between two nodes. For the dynamic version of the problem, where the edge weights can be updated, we give data structures that achieve optimal query time\\todo{what about...

  14. Approximate shortest homotopic paths in weighted regions

    KAUST Repository

    Cheng, Siuwing; Jin, Jiongxin; Vigneron, Antoine E.; Wang, Yajun

    2012-01-01

    A path P between two points s and t in a polygonal subdivision T with obstacles and weighted regions defines a class of paths that can be deformed to P without passing over any obstacle. We present the first algorithm that, given P and a relative

  15. from synchronic variation to a grammaticalization path

    African Journals Online (AJOL)

    Kate H

    Abstract. The authors argue that the synchronic variation of cognate objects of weather verbs exhibited in six African languages of South Africa (Sepedi, Sesotho, Tshivenda, isiXhosa, Xitsonga, and. isiZulu) has a diachronic explanation, and may be represented as a grammaticalization path. This path gradually leads from ...

  16. Optimization of educational paths for higher education

    Science.gov (United States)

    Tarasyev, Alexandr A.; Agarkov, Gavriil; Medvedev, Aleksandr

    2017-11-01

    In our research, we combine the theory of economic behavior and the methodology of increasing efficiency of the human capital to estimate the optimal educational paths. We provide an optimization model for higher education process to analyze possible educational paths for each rational individual. The preferences of each rational individual are compared to the best economically possible educational path. The main factor of the individual choice, which is formed by the formation of optimal educational path, deals with higher salaries level in the chosen economic sector after graduation. Another factor that influences on the economic profit is the reduction of educational costs or the possibility of the budget support for the student. The main outcome of this research consists in correction of the governmental policy of investment in human capital based on the results of educational paths optimal control.

  17. Organisational change stressors and nursing job satisfaction: the mediating effect of coping strategies.

    Science.gov (United States)

    Teo, Stephen T T; Pick, David; Newton, Cameron J; Yeung, Melissa E; Chang, Esther

    2013-09-01

    To examine the mediating effect of coping strategies on the consequences of nursing and non-nursing (administrative) stressors on the job satisfaction of nurses during change management. Organisational change can result in an increase in nursing and non-nursing-related stressors, which can have a negative impact on the job satisfaction of nurses employed in health-care organisations. Matched data were collected in 2009 via an online survey at two time-points (six months apart). Partial least squares path analysis revealed a significant causal relationship between Time 1 administrative and role stressors and an increase in nursing-specific stressors in Time 2. A significant relationship was also identified between job-specific nursing stressors and the adoption of effective coping strategies to deal with increased levels of change-induced stress and strain and the likelihood of reporting higher levels of job satisfaction in Time 2. The effectiveness of coping strategies is critical in helping nurses to deal with the negative consequences of organisational change. This study shows that there is a causal relationship between change, non-nursing stressors and job satisfaction. Senior management should implement strategies aimed at reducing nursing and non-nursing stress during change in order to enhance the job satisfaction of nurses. © 2013 John Wiley & Sons Ltd.

  18. District nurse training

    OpenAIRE

    Elliott, Arnold; Freeling, Paul; Owen, John

    1980-01-01

    Training for district nursing is being reviewed. By 1981 district nurses will have a new administrative structure, a new curriculum, and a new examination. Training for nursing, like that for general practice, is to become mandatory. The history of the development of district nurse training is briefly described.

  19. Pre-germinative treatments in okra seeds in different stadiums of fruit maturationTratamentos pré-germinativos em sementes de quiabo em diferentes estádios de maturação do fruto

    Directory of Open Access Journals (Sweden)

    Célia Maria Peixoto de Macedo

    2011-12-01

    Full Text Available The objective of this work was to evaluate the influence of the pre-soak and of the thermotherapy in the germination and in the energy of the okra seeds (Abelmoschus esculentus in different stadiums of maturation of the fruit. The design used was the entirely randomized with four repetitions, in a factorial outline 5 x 9, five maturation stadiums (green, semi-hard, hard, dry and dehiscent and nine treatments pre-germination: pre-soak for immersion of the seeds in water to the temperature of 30ºC for 6, 12 and 24 hours; immersion of the seeds in water to 40, 50, 60 and 70ºC for 3 minutes; thermotherapy for immersion of the seeds in water to the ebullition temperature (97ºC until cooling and intact seeds (control. The seeds were sowed in paper-towel rolls and they were maintained in camera type BOD regulated to 20-30ºC and photoperiod of 8-16 hours. The okra seeds originating from dry and dehiscent fruits presented larger germination performance. The pre-germination treatments more effective to accelerate the germination of seeds obtained from dry and dehiscent fruits are the pre-soak for 6 hours and thermotherapy at 60 °C for 3 minutes, respectively.O objetivo deste trabalho foi avaliar a influência da pré-embebição e da termoterapia na germinação e no vigor das sementes de quiabo (Abelmoschus esculentus em diferentes estádios de maturação do fruto. O delineamento foi o inteiramente casualizado com quatro repetições, num esquema fatorial 5 x 9, cinco estádios de maturação (verde, semi-duro, duro, seco e deiscente e nove tratamentos pré-germinativos: pré-embebição por imersão das sementes em água à temperatura de 30ºC por 6, 12 e 24 horas; imersão das sementes em água a 40, 50, 60 e 70ºC por 3 minutos; termoterapia por imersão das sementes em água à temperatura de ebulição (97ºC até esfriar e sementes intactas (testemunha. As sementes foram semeadas em rolos de papel-toalha que foram mantidos em câmara tipo

  20. Nursing in Turkey.

    Science.gov (United States)

    Baumann, Steven L

    2006-10-01

    The current discussion on the nursing shortage needs to focus as much on nursing job satisfaction and retention as on nursing recruitment and education. Selected aspects of the motivational psychology of Abraham Maslow, Mihaly Csikszentmihalyi, and Frederick Hertzberg are here discussed in light of the challenges-opportunities of nursing in Turkey and elsewhere. Also discussed is an innovative program to support the application of nursing theory and professional development in Toronto, Canada.

  1. Self Conservation Trajectory in Nursing Homes

    Directory of Open Access Journals (Sweden)

    Ângela Simões

    2017-04-01

    Full Text Available Objectives: This article intends to present some of the results obtained during the research on the Promotion and Preservation of Dignity in the context of care in nursing homes, carried out in the context of the PhD in Nursing of the University of Lisbon. Methodology: Within the interpretative paradigm, Grounded Theory (GT was adopted as methodology. Data were collected through participant observation and interviews at an Nursing Home (IPSS with about 350 residents distributed through three residential structures in the county of Castelo Branco for 21 months, with residents, nurses and direct acting helpers as participants. The constant comparative analysis of the data occurred simultaneously, using the software NVivo 10® and NVivo 11®. From the data analysis it was possible to construct a middle-range theory - Promotion and Preservation of Dignity in Nursing Homes: Self Conservation. Results: A complex, unforeseen phenomenon, exposed to variability and multiple, constructed, deconstructed and reconstructed in the daily rhythms, in a continuous, systematic and dynamic manner. It follows a two-dimensional route that was called the Self Conservation Trajectory. On the one hand a personal, individual, although accompanied and promoted. On the other hand a profoundly social path. Is the first dimension of this route that will be presented in this article.

  2. Multi-AGV path planning with double-path constraints by using an improved genetic algorithm.

    Directory of Open Access Journals (Sweden)

    Zengliang Han

    Full Text Available This paper investigates an improved genetic algorithm on multiple automated guided vehicle (multi-AGV path planning. The innovations embody in two aspects. First, three-exchange crossover heuristic operators are used to produce more optimal offsprings for getting more information than with the traditional two-exchange crossover heuristic operators in the improved genetic algorithm. Second, double-path constraints of both minimizing the total path distance of all AGVs and minimizing single path distances of each AGV are exerted, gaining the optimal shortest total path distance. The simulation results show that the total path distance of all AGVs and the longest single AGV path distance are shortened by using the improved genetic algorithm.

  3. Promoting retention of nurses: A meta-analytic examination of causes of nurse turnover.

    Science.gov (United States)

    Nei, Darin; Snyder, Lori Anderson; Litwiller, Brett J

    2015-01-01

    Because the health care field is expected to be the fastest growing job field until 2020, an urgent need to focus on nurse retention exists. The aim of this study was to examine the relationships between predictors of turnover (i.e., personal characteristics, role states, job characteristics, group/leader relations, organizational/environmental perceptions, attitudinal reactions) and turnover cognitions and intentions, as well as actual turnover among nurses, in an effort to determine the strongest predictors of voluntary turnover. Meta-analysis was used to determine best estimates of the effect of predictors on turnover based on 106 primary studies of employed nurses. Meta-analyzed correlations were subjected to path analysis to establish the structural relationships among the study variables. Supportive and communicative leadership, network centrality, and organizational commitment are the strongest predictors of voluntary turnover based on meta-analytic correlations. Additional variables that relate to nurse turnover intentions include job strain, role tension, work-family conflict, job control, job complexity, rewards/recognition, and team cohesion. The findings suggest that some factors, such as salary, are relatively less important in prediction of turnover. Administrators concerned about nurse turnover may more effectively direct resources toward altering certain job characteristics and work conditions in the effort to reduce voluntary turnover among nurses.

  4. Desperately seeking sociology: nursing student perceptions of sociology on nursing courses.

    Science.gov (United States)

    Edgley, Alison; Timmons, Stephen; Crosbie, Brian

    2009-01-01

    This paper will present the findings of a qualitative study exploring the perceptions of students confronted by a requirement to learn sociology within a nursing curriculum. Those teaching sociology have a variety of explanations (more or less desperate), seeking to justify its place on the nursing curriculum. While there may be no resolution to the debate, the dispute thus far, has largely been between sociology and nursing academics. Absent from this debate are the voices of students 'required' to learn both nursing and sociology. What do students make of this contested territory? When students are trying to learn their trade, and know how to practice safely and efficaciously what do they make of the sociological imagination? How realistic is it to expect students to grasp both the concrete and practical with the imaginative and critical? Findings from this qualitative, focus group study suggest that students do indeed find learning sociology within a nursing curriculum "unsettling". It would seem that students cope in a number of ways. They fragment and compartmentalise knowledge(s); they privilege the interception of experiential learning on the path between theory and practice; and yet they appear to employ sociological understanding to account for nursing's gendered and developing professional status.

  5. Integrated path towards geological storage

    International Nuclear Information System (INIS)

    Bouchard, R.; Delaytermoz, A.

    2004-01-01

    Among solutions to contribute to CO 2 emissions mitigation, sequestration is a promising path that presents the main advantage of being able to cope with the large volume at stake when considering the growing energy demand. Of particular importance, geological storage has widely been seen as an effective solution for large CO 2 sources like power plants or refineries. Many R and D projects have been initiated, whereby research institutes, government agencies and end-users achieve an effective collaboration. So far, progress has been made towards reinjection of CO 2 , in understanding and then predicting the phenomenon and fluid dynamics inside the geological target, while monitoring the expansion of the CO 2 bubble in the case of demonstration projects. A question arises however when talking about sequestration, namely the time scale to be taken into account. Time is indeed of the essence, and points out the need to understand leakage as well as trapping mechanisms. It is therefore of prime importance to be able to predict the fate of the injected fluids, in an accurate manner and over a relevant period of time. On the grounds of geology, four items are involved in geological storage reliability: the matrix itself, which is the recipient of the injected fluids; the seal, that is the mechanistic trap preventing the injected fluids to flow upward and escape; the lower part of the concerned structure, usually an aquifer, that can be a migration way for dissolved fluids; and the man- made injecting hole, the well, whose characteristics should be as good as the geological formation itself. These issues call for specific competencies such as reservoir engineering, geology and hydrodynamics, mineral chemistry, geomechanics, and well engineering. These competencies, even if put to use to a large extent in the oil industry, have never been connected with the reliability of geological storage as ultimate goal. This paper aims at providing an introduction to these

  6. Linking the Unitary Paradigm to Policy through a Synthesis of Caring Science and Integrative Nursing.

    Science.gov (United States)

    Koithan, Mary S; Kreitzer, Mary Jo; Watson, Jean

    2017-07-01

    The principles of integrative nursing and caring science align with the unitary paradigm in a way that can inform and shape nursing knowledge, patient care delivery across populations and settings, and new healthcare policy. The proposed policies may transform the healthcare system in a way that supports nursing praxis and honors the discipline's unitary paradigm. This call to action provides a distinct and hopeful vision of a healthcare system that is accessible, equitable, safe, patient-centered, and affordable. In these challenging times, it is the unitary paradigm and nursing wisdom that offer a clear path forward.

  7. Integrated robust controller for vehicle path following

    Energy Technology Data Exchange (ETDEWEB)

    Mashadi, Behrooz; Ahmadizadeh, Pouyan, E-mail: p-ahmadizadeh@iust.ac.ir; Majidi, Majid, E-mail: m-majidi@iust.ac.ir [Iran University of Science and Technology, School of Automotive Engineering (Iran, Islamic Republic of); Mahmoodi-Kaleybar, Mehdi, E-mail: m-mahmoodi-k@iust.ac.ir [Iran University of Science and Technology, School of Mechanical Engineering (Iran, Islamic Republic of)

    2015-02-15

    The design of an integrated 4WS+DYC control system to guide a vehicle on a desired path is presented. The lateral dynamics of the path follower vehicle is formulated by considering important parameters. To reduce the effect of uncertainties in vehicle parameters, a robust controller is designed based on a μ-synthesis approach. Numerical simulations are performed using a nonlinear vehicle model in MATLAB environment in order to investigate the effectiveness of the designed controller. Results of simulations show that the controller has a profound ability to making the vehicle track the desired path in the presence of uncertainties.

  8. Path integral for relativistic particle theory

    International Nuclear Information System (INIS)

    Fradkin, E.S.; Gitman, D.M.; Shvartsman, Sh.M.

    1990-06-01

    An action for a relativistic spinning particle interacting with external electromagnetic field is considered in reparametrization and local supergauge invariant form. It is shown that various path integral representations derived for the causal Green function correspond to the different forms of the relativistic particle action. The analogy of the path integral derived with the Lagrangian path integral of the field theory is discussed. It is shown that to obtain the causal propagator, the integration over the null mode of the Lagrangian multiplier corresponding to the reparametrization invariance, has to be performed in the (0,+infinity) limits. (author). 23 refs

  9. Integrated robust controller for vehicle path following

    International Nuclear Information System (INIS)

    Mashadi, Behrooz; Ahmadizadeh, Pouyan; Majidi, Majid; Mahmoodi-Kaleybar, Mehdi

    2015-01-01

    The design of an integrated 4WS+DYC control system to guide a vehicle on a desired path is presented. The lateral dynamics of the path follower vehicle is formulated by considering important parameters. To reduce the effect of uncertainties in vehicle parameters, a robust controller is designed based on a μ-synthesis approach. Numerical simulations are performed using a nonlinear vehicle model in MATLAB environment in order to investigate the effectiveness of the designed controller. Results of simulations show that the controller has a profound ability to making the vehicle track the desired path in the presence of uncertainties

  10. Path-Goal Theory of Leadership

    Science.gov (United States)

    1975-04-01

    Leadership and Turnover Among Managers ," Organization Behavior and Human Performance, 10(1973), pp. 184-200; R. J. House, "A Path-Goal Theory of...of Leadership ." 6R. J. House and G. Dessler, "Path-Goal Theory of Leadership " R. M. Stqg- dill. Managers , Employees, Organization (Ohio State...of Control." 23 R. J. House, "Notes on the Path-Goal Theory of Leadership " (University of Toronto, Faculty of Management Studies, May 1974). 24 R

  11. Path integral representations on the complex sphere

    Energy Technology Data Exchange (ETDEWEB)

    Grosche, C. [Hamburg Univ. (Germany). 2. Inst. fuer Theoretische Physik

    2007-08-15

    In this paper we discuss the path integral representations for the coordinate systems on the complex sphere S{sub 3C}. The Schroedinger equation, respectively the path integral, separates in exactly 21 orthogonal coordinate systems. We enumerate these coordinate systems and we are able to present the path integral representations explicitly in the majority of the cases. In each solution the expansion into the wave-functions is stated. Also, the kernel and the corresponding Green function can be stated in closed form in terms of the invariant distance on the sphere, respectively on the hyperboloid. (orig.)

  12. Path probabilities of continuous time random walks

    International Nuclear Information System (INIS)

    Eule, Stephan; Friedrich, Rudolf

    2014-01-01

    Employing the path integral formulation of a broad class of anomalous diffusion processes, we derive the exact relations for the path probability densities of these processes. In particular, we obtain a closed analytical solution for the path probability distribution of a Continuous Time Random Walk (CTRW) process. This solution is given in terms of its waiting time distribution and short time propagator of the corresponding random walk as a solution of a Dyson equation. Applying our analytical solution we derive generalized Feynman–Kac formulae. (paper)

  13. Path integral representations on the complex sphere

    International Nuclear Information System (INIS)

    Grosche, C.

    2007-08-01

    In this paper we discuss the path integral representations for the coordinate systems on the complex sphere S 3C . The Schroedinger equation, respectively the path integral, separates in exactly 21 orthogonal coordinate systems. We enumerate these coordinate systems and we are able to present the path integral representations explicitly in the majority of the cases. In each solution the expansion into the wave-functions is stated. Also, the kernel and the corresponding Green function can be stated in closed form in terms of the invariant distance on the sphere, respectively on the hyperboloid. (orig.)

  14. Positroids Induced by Rational Dyck Paths

    OpenAIRE

    Gotti, Felix

    2017-01-01

    A rational Dyck path of type $(m,d)$ is an increasing unit-step lattice path from $(0,0)$ to $(m,d) \\in \\mathbb{Z}^2$ that never goes above the diagonal line $y = (d/m)x$. On the other hand, a positroid of rank $d$ on the ground set $[d+m]$ is a special type of matroid coming from the totally nonnegative Grassmannian. In this paper we describe how to naturally assign a rank $d$ positroid on the ground set $[d+m]$, which we name rational Dyck positroid, to each rational Dyck path of type $(m,d...

  15. Unusual bond paths in organolithium compounds

    International Nuclear Information System (INIS)

    Bachrach, S.M.; Ritchie, J.P.

    1986-01-01

    We have applied the topological method to a number of organolithium compounds. The wavefunctions were determined with GAUSSIAN-82 using 3-21G basis set and fully optimized geometries. Gradient paths were obtained using the RHODER package and critical points were located using EXTREME. These results indicate the unusual nature of organolithium compounds. The strange bond paths arise mainly from the ionic nature of the C-Li interaction. We suggest that the term ''bond path'' may best be suited for covalent bonds. 4 figs., 1 tab

  16. New framework for the Feynman path integral

    International Nuclear Information System (INIS)

    Shaharir, M.Z.

    1986-01-01

    The well-known Fourier integral solution of the free diffusion equation in an arbitrary Euclidean space is reduced to Feynmannian integrals using the method partly contained in the formulation of the Fresnelian integral. By replacing the standard Hilbert space underlying the present mathematical formulation of the Feynman path integral by a new Hilbert space, the space of classical paths on the tangent bundle to the Euclidean space (and more general to an arbitrary Riemannian manifold) equipped with a natural inner product, we show that our Feynmannian integral is in better agreement with the qualitative features of the original Feynman path integral than the previous formulations of the integral

  17. Realizing spaces as path-component spaces

    OpenAIRE

    Banakh, Taras; Brazas, Jeremy

    2018-01-01

    The path component space of a topological space $X$ is the quotient space $\\pi_0(X)$ whose points are the path components of $X$. We show that every Tychonoff space $X$ is the path-component space of a Tychonoff space $Y$ of weight $w(Y)=w(X)$ such that the natural quotient map $Y\\to \\pi_0(Y)=X$ is a perfect map. Hence, many topological properties of $X$ transfer to $Y$. We apply this result to construct a compact space $X\\subset \\mathbb{R}^3$ for which the fundamental group $\\pi_1(X,x_0)$ is...

  18. Academic ethical awareness among undergraduate nursing students.

    Science.gov (United States)

    Cho, Ok-Hee; Hwang, Kyung-Hye

    2017-01-01

    Academic ethical awareness is an important aspect especially for nursing students who will provide ethical nursing care to patients in future or try to tread the path of learning toward professional acknowledgement in nursing scholarship. The purpose of this study was to explore academic ethical awareness and its related characteristics among undergraduate nursing students. This study commenced the survey with cross-sectional, descriptive questions and enrolled convenient samples of 581 undergraduate nursing students from three universities in South Korea. It was investigated with structured questionnaires including general characteristics and academic ethical awareness related. Ethical considerations: This study was reviewed and approved by the Institutional Review Board at National University. Academic ethical awareness was the highest regarding behaviors violating the respect or confidentiality of patients and cheating on exams, while it was the lowest for inappropriate behaviors in class. From the result of general characteristics difference, male students showed higher score than female students in relative; first-year students showed higher score than other year students; the higher score was rated from students who were highly satisfied with their major than the other not satisfied with their major; and students with low academic stress showed higher ethical awareness score than persons with higher stress. Personal behaviors were rated with low ethical awareness in relative, but items related to public rules and actual effects on patients or others were rated with higher score. Nursing satisfaction and academic stress are main factors on ethical awareness. To improve overall ethical awareness level of nursing students, it is required to provide more education about the importance of personal behaviors in class and need to improve the understanding of how it will be connected with future situation and effect.

  19. Sexual harassment of nurses and nursing students.

    Science.gov (United States)

    Bronner, Gila; Peretz, Chava; Ehrenfeld, Mally

    2003-06-01

    Nursing has dealt with sexual harassment long before the term was coined during the 1970s. The current study investigated sexual harassment of nurses and nursing students in Israel following new legislation against sexual harassment in the workplace. A self-report questionnaire was administered to 281 nurses and 206 nursing students (80% women) from five medical centres in Israel. Seven types of sexual harassment behaviour patterns were evaluated. Frequency of sexual harassment decreased as the behaviour became more intimate and offensive. Ninety percent of subjects reported experiencing at least one type of sexual harassment and 30% described at least four types. A significant difference was found between nurses and nursing students. Furthermore, "severe" types of behaviour were experienced by 33% of nurses, in comparison with 23% of nursing students. Women were significantly more exposed than men to "mild" and "moderate" types of sexual harassment, while 35% of men vs. 26% of women were exposed to "severe" types of harassment. However, women responded significantly more assertively than men to "severe" sexual harassment. Particular attention is needed when sexual harassment occurs to male students and nurses because they may be subjected to the more offensive sexual conducts and at the same time may lack the ability to respond assertively.

  20. Meals in nursing homes

    DEFF Research Database (Denmark)

    Kofod, Jens Erik; Birkemose, A.

    2004-01-01

    Undernutrition is present among 33% of nursing home residents in Denmark. Hence, it is relevant to examine the meal situation at nursing homes to single out factors that may increase or reduce the residents' food intake. in the ongoing Danish nursing home debate it is claimed that a new type...... of nursing home improves the residents' meal situation with a positive effect on nutrition. The aim of this work is to test the general hypothesis that (i) residents appreciate the meal situation in these nursing homes and (ii) nutritional status of the residents is improved in this type of nursing home....... This study was carried out in four Danish nursing homes at various locations in Denmark. The methods used are qualitative interviews and observations at four nursing homes in combination with measurement of body mass index (BMI) at two of the four nursing homes. Undernutrition is defined as a BMI below 20...

  1. Euclidean shortest paths exact or approximate algorithms

    CERN Document Server

    Li, Fajie

    2014-01-01

    This book reviews algorithms for the exact or approximate solution of shortest-path problems, with a specific focus on a class of algorithms called rubberband algorithms. The coverage includes mathematical proofs for many of the given statements.

  2. Northern Pintail - Flight Path Telemetry [ds117

    Data.gov (United States)

    California Natural Resource Agency — North-south flight paths of radio-tagged female northern pintails were monitored in a section of Highway 152 near Los Banos, California during 4 and 11 November and...

  3. Ductility behavior of irradiated path B alloys

    International Nuclear Information System (INIS)

    Yang, W.J.S.; Hamilton, M.L.

    1983-01-01

    The objective of this study was to assess the practicality of using five Path B alloys in their current form as structural materials in the Fusion First-Wall/Blanket by evaluating both their postirradiation ductility and the corresponding microstructures

  4. AEDT sensor path methods using BADA4

    Science.gov (United States)

    2017-06-01

    This report documents the development and use of sensor path data processing in the Federal Aviation Administration's (FAAs) Aviation Environmental Design Tool (AEDT). The methods are primarily intended to assist analysts with using AEDT to determ...

  5. Modeling and Solving the Train Pathing Problem

    Directory of Open Access Journals (Sweden)

    Chuen-Yih Chen

    2009-04-01

    Full Text Available In a railroad system, train pathing is concerned with the assignment of trains to links and tracks, and train timetabling allocates time slots to trains. In this paper, we present an optimization heuristic to solve the train pathing and timetabling problem. This heuristic allows the dwell time of trains in a station or link to be dependent on the assigned tracks. It also allows the minimum clearance time between the trains to depend on their relative status. The heuristic generates a number of alternative paths for each train service in the initialization phase. Then it uses a neighborhood search approach to find good feasible combinations of these paths. A linear program is developed to evaluate the quality of each combination that is encountered. Numerical examples are provided.

  6. Search Path Evaluation Incorporating Object Placement Structure

    National Research Council Canada - National Science Library

    Baylog, John G; Wettergren, Thomas A

    2007-01-01

    This report describes a computationally robust approach to search path performance evaluation where the objects of search interest exhibit structure in the way in which they occur within the search space...

  7. A concept analysis of holistic nursing care in paediatric nursing

    OpenAIRE

    A.A. Tjale; J. Bruce

    2007-01-01

    Holistic nursing care is widely advocated and is espoused in the philosophy of the South African Nursing Council. This concept is unclear, variously interpreted and poorly understood in paediatric nursing. This study was undertaken to examine the meaning of holistic nursing care and to develop a framework for holistic nursing care, which can be utilised in nurse education settings and in clinical nursing practice in the context of paediatric nursing. A qualitative, interpretive, explorative a...

  8. Multiagent path-finding in strategic games

    OpenAIRE

    Mihevc, Simon

    2014-01-01

    In this thesis I worked on creating, comparing and improving algorithms for multi-agent path planning on a domain typical for real-time strategy games. I implemented and compared Multiagent pathfinding using clearance and Multiagent pathfinding using independence detection and operator decomposition. I discovered that they had problems maintaining group compactness and took too long to calculate the path. I considerably improved the efficiency of both algorithms.

  9. Diversion Path Analysis Handbook. Volume 1. Methodology

    International Nuclear Information System (INIS)

    Goodwin, K.E.; Schleter, J.C.; Maltese, M.D.K.

    1978-11-01

    Diversion Path Analysis (DPA) is a safeguards evaluation tool which is used to determine the vulnerability of the Material Control and Material Accounting (MC and MA) Subsystems to the threat of theft of Special Nuclear Material (SNM) by a knowledgeable Insider. The DPA team should consist of two individuals who have technical backgrounds. The implementation of DPA is divided into five basic steps: Information and Data Gathering, Process Characterization, Analysis of Diversion Paths, Results and Findings, and Documentation

  10. Feasible Path Planning for Autonomous Vehicles

    Directory of Open Access Journals (Sweden)

    Vu Trieu Minh

    2014-01-01

    Full Text Available The objective of this paper is to find feasible path planning algorithms for nonholonomic vehicles including flatness, polynomial, and symmetric polynomial trajectories subject to the real vehicle dynamical constraints. Performances of these path planning methods are simulated and compared to evaluate the more realistic and smoother generated trajectories. Results show that the symmetric polynomial algorithm provides the smoothest trajectory. Therefore, this algorithm is recommended for the development of an automatic control for autonomous vehicles.

  11. Acquisition Path Analysis as a Collaborative Activity

    International Nuclear Information System (INIS)

    Nakao, A.; Grundule, R.; Gushchyn, K.; El Gebaly, A.; Higgy, R.; Tsvetkov, I.; Mandl, W.

    2015-01-01

    In the International Atomic Energy Agency, acquisition path analysis (APA) is indispensable to safeguards implementation. It is an integral part of both State evaluation process and the development of State level safeguards approaches, all performed through ongoing collaborative analysis of all available safeguards relevant information by State evaluation groups (SEG) with participation of other contributors, as required. To perform comprehensive State evaluation, to develop and revise State-level safeguards approaches, and to prepare annual implementation plans, the SEG in its collaborative analysis follows accepted safeguards methodology and guidance. In particular, the guide ''Performing Acquisition Path Analysis for the Development of a State-level Safeguards Approach for a State with a CSA'' is used. This guide identifies four major steps of the APA process: 1. Consolidating information about the State's past, present and planned nuclear fuel cycle-related capabilities and infrastructure; 2. Identifying and visually presenting technically plausible acquisition paths for the State; 3. Assessing acquisition path steps (State's technical capabilities and possible actions) along the identified acquisition paths; and 4. Assessing the time needed to accomplish each identified technically plausible acquisition path for the State. The paper reports on SEG members' and other contributors' experience with APA when following the above steps, including the identification of plausible acquisition pathways, estimation of time frames for all identified steps and determination of the time needed to accomplish each acquisition path. The difficulties that the SEG encountered during the process of performing the APA are also addressed. Feedback in the form of practical suggestions for improving the clarity of the acquisition path step assessment forms and a proposal for software support are also included. (author)

  12. Lattice Paths and the Constant Term

    International Nuclear Information System (INIS)

    Brak, R; Essam, J; Osborn, J; Owczarek, A L; Rechnitzer, A

    2006-01-01

    We firstly review the constant term method (CTM), illustrating its combinatorial connections and show how it can be used to solve a certain class of lattice path problems. We show the connection between the CTM, the transfer matrix method (eigenvectors and eigenvalues), partial difference equations, the Bethe Ansatz and orthogonal polynomials. Secondly, we solve a lattice path problem first posed in 1971. The model stated in 1971 was only solved for a special case - we solve the full model

  13. Status of the National Ignition Facility Integrated Computer Control System (ICCS) on the Path to Ignition

    International Nuclear Information System (INIS)

    Lagin, L J; Bettenhauasen, R C; Bowers, G A; Carey, R W; Edwards, O D; Estes, C M; Demaret, R D; Ferguson, S W; Fisher, J M; Ho, J C; Ludwigsen, A P; Mathisen, D G; Marshall, C D; Matone, J M; McGuigan, D L; Sanchez, R J; Shelton, R T; Stout, E A; Tekle, E; Townsend, S L; Van Arsdall, P J; Wilson, E F

    2007-01-01

    The National Ignition Facility (NIF) at the Lawrence Livermore National Laboratory is a stadium-sized facility under construction that will contain a 192-beam, 1.8-Megajoule, 500-Terawatt, ultraviolet laser system together with a 10-meter diameter target chamber with room for multiple experimental diagnostics. NIF is the world's largest and most energetic laser experimental system, providing a scientific center to study inertial confinement fusion (ICF) and matter at extreme energy densities and pressures. NIF's laser beams are designed to compress fusion targets to conditions required for thermonuclear burn, liberating more energy than required to initiate the fusion reactions. NIF is comprised of 24 independent bundles of 8 beams each using laser hardware that is modularized into more than 6,000 line replaceable units such as optical assemblies, laser amplifiers, and multifunction sensor packages containing 60,000 control and diagnostic points. NIF is operated by the large-scale Integrated Computer Control System (ICCS) in an architecture partitioned by bundle and distributed among over 800 front-end processors and 50 supervisory servers. NIF's automated control subsystems are built from a common object-oriented software framework based on CORBA distribution that deploys the software across the computer network and achieves interoperation between different languages and target architectures. A shot automation framework has been deployed during the past year to orchestrate and automate shots performed at the NIF using the ICCS. In December 2006, a full cluster of 48 beams of NIF was fired simultaneously, demonstrating that the independent bundle control system will scale to full scale of 192 beams. At present, 72 beams have been commissioned and have demonstrated 1.4-Megajoule capability of infrared light. During the next two years, the control system will be expanded to include automation of target area systems including final optics, target positioners and

  14. Status of the National Ignition Facility Integrated Computer Control System (ICCS) on the path to ignition

    International Nuclear Information System (INIS)

    Lagin, L.J.; Bettenhausen, R.C.; Bowers, G.A.; Carey, R.W.; Edwards, O.D.; Estes, C.M.; Demaret, R.D.; Ferguson, S.W.; Fisher, J.M.; Ho, J.C.; Ludwigsen, A.P.; Mathisen, D.G.; Marshall, C.D.; Matone, J.T.; McGuigan, D.L.; Sanchez, R.J.; Stout, E.A.; Tekle, E.A.; Townsend, S.L.; Van Arsdall, P.J.

    2008-01-01

    The National Ignition Facility (NIF) at the Lawrence Livermore National Laboratory is a stadium-sized facility under construction that will contain a 192-beam, 1.8-MJ, 500-TW, ultraviolet laser system together with a 10-m diameter target chamber with room for multiple experimental diagnostics. NIF is the world's largest and most energetic laser experimental system, providing a scientific center to study inertial confinement fusion (ICF) and matter at extreme energy densities and pressures. NIF's laser beams are designed to compress fusion targets to conditions required for thermonuclear burn, liberating more energy than required to initiate the fusion reactions. NIF is comprised of 24 independent bundles of eight beams each using laser hardware that is modularized into more than 6000 line replaceable units such as optical assemblies, laser amplifiers, and multi-function sensor packages containing 60,000 control and diagnostic points. NIF is operated by the large-scale Integrated Computer Control System (ICCS) in an architecture partitioned by bundle and distributed among over 800 front-end processors and 50 supervisory servers. NIF's automated control subsystems are built from a common object-oriented software framework based on CORBA distribution that deploys the software across the computer network and achieves interoperation between different languages and target architectures. A shot automation framework has been deployed during the past year to orchestrate and automate shots performed at the NIF using the ICCS. In December 2006, a full cluster of 48 beams of NIF was fired simultaneously, demonstrating that the independent bundle control system will scale to full scale of 192 beams. At present, 72 beams have been commissioned and have demonstrated 1.4-MJ capability of infrared light. During the next 2 years, the control system will be expanded in preparation for project completion in 2009 to include automation of target area systems including final optics

  15. Hospice and Palliative Nurses Association

    Science.gov (United States)

    ... Press Release Patients & Families About Serious Illness Certified Nurses are Everywhere Advocacy Palliative Nursing Summit Recent Activity ... Principles State Ambassadors Advocacy Resources Healthcare Resources Certified Nurses Day Certified Nurses are Everywhere Certification is Transformational ...

  16. Computing Diffeomorphic Paths for Large Motion Interpolation.

    Science.gov (United States)

    Seo, Dohyung; Jeffrey, Ho; Vemuri, Baba C

    2013-06-01

    In this paper, we introduce a novel framework for computing a path of diffeomorphisms between a pair of input diffeomorphisms. Direct computation of a geodesic path on the space of diffeomorphisms Diff (Ω) is difficult, and it can be attributed mainly to the infinite dimensionality of Diff (Ω). Our proposed framework, to some degree, bypasses this difficulty using the quotient map of Diff (Ω) to the quotient space Diff ( M )/ Diff ( M ) μ obtained by quotienting out the subgroup of volume-preserving diffeomorphisms Diff ( M ) μ . This quotient space was recently identified as the unit sphere in a Hilbert space in mathematics literature, a space with well-known geometric properties. Our framework leverages this recent result by computing the diffeomorphic path in two stages. First, we project the given diffeomorphism pair onto this sphere and then compute the geodesic path between these projected points. Second, we lift the geodesic on the sphere back to the space of diffeomerphisms, by solving a quadratic programming problem with bilinear constraints using the augmented Lagrangian technique with penalty terms. In this way, we can estimate the path of diffeomorphisms, first, staying in the space of diffeomorphisms, and second, preserving shapes/volumes in the deformed images along the path as much as possible. We have applied our framework to interpolate intermediate frames of frame-sub-sampled video sequences. In the reported experiments, our approach compares favorably with the popular Large Deformation Diffeomorphic Metric Mapping framework (LDDMM).

  17. Quantum cosmology based on discrete Feynman paths

    International Nuclear Information System (INIS)

    Chew, Geoffrey F.

    2002-01-01

    Although the rules for interpreting local quantum theory imply discretization of process, Lorentz covariance is usually regarded as precluding time quantization. Nevertheless a time-discretized quantum representation of redshifting spatially-homogeneous universe may be based on discrete-step Feynman paths carrying causal Lorentz-invariant action--paths that not only propagate the wave function but provide a phenomenologically-promising elementary-particle Hilbert-space basis. In a model under development, local path steps are at Planck scale while, at a much larger ''wave-function scale'', global steps separate successive wave-functions. Wave-function spacetime is but a tiny fraction of path spacetime. Electromagnetic and gravitational actions are ''at a distance'' in Wheeler-Feynman sense while strong (color) and weak (isospin) actions, as well as action of particle motion, are ''local'' in a sense paralleling the action of local field theory. ''Nonmaterial'' path segments and ''trivial events'' collaborate to define energy and gravity. Photons coupled to conserved electric charge enjoy privileged model status among elementary fermions and vector bosons. Although real path parameters provide no immediate meaning for ''measurement'', the phase of the complex wave function allows significance for ''information'' accumulated through ''gentle'' electromagnetic events involving charged matter and ''soft'' photons. Through its soft-photon content the wave function is an ''information reservoir''

  18. Succession Planning for Nursing Leaders in a College of Nursing

    Science.gov (United States)

    Tucker, Cheryl A.

    2017-01-01

    The Institute of Medicine (2011) challenged nursing to ensure the nursing workforce includes a sufficient number of academic nurse leaders, nurse educators, and doctorally prepared nurses for the future healthcare needs of the people of the United States. National data reveals a fragile supply of academic nurse educators and leaders. This tenuous…

  19. Using Nursing Languages in School Nursing Practice. Second Edition

    Science.gov (United States)

    Denehy, Janice

    2010-01-01

    The purpose of this updated manual is to define and describe standardized nursing languages, highlight how nursing languages are a part of the nursing process, and illustrate through case examples how nursing languages are used in school nursing practice. This manual also summarizes the history and development of three nursing classifications, the…

  20. Nursing and Nursing Education: Public Policies and Private Actions.

    Science.gov (United States)

    Institute of Medicine (NAS), Washington, DC.

    Results are presented of a study of nursing and nursing education that focused on the need for continued federal support of nursing education, ways to attract nurses to medically underserved areas, and approaches to encourage nurses to stay in the profession. Findings are presented on whether the aggregate supply of generalist nurses will be…

  1. Reconsidering the concept of nursing as handled by Japanese nursing teachers : The nursing network formed by innovative nursing teachers

    OpenAIRE

    山梨, 八重子; ヤマナシ, ヤエコ; Yamanashi, Yaeko

    2017-01-01

    The purpose of this paper is to clarify the originality of nursing given by nursing teachers. From the results, I concluded that, taking nursing from the viewpoint of Kant education, all teachers including the nursing teachers, and nursing teachers make teachers and others to bring out the important nursing skills in themselves. Further the network formed from these interactions is the origin of the nursing provided by nursing teachers.

  2. What GUIDES Your NURSING PRACTICE?

    Science.gov (United States)

    Hountras, Stacy C

    2015-01-01

    Nurses' personal belief systems or philosophies about nursing and people guides their nursing care, especially in difficult situations. Defining and articulating a personal philosophy helps the nurse better understand the motivation and reasoning behind his or her work. In this article, a nurse shares her philosophy of nursing, underlying beliefs, and discusses how this guides her practice. Questions to help nurses articulate their own personal philosophy of nursing are included.

  3. Call to Action for Nurses/Nursing

    Directory of Open Access Journals (Sweden)

    Shahirose S. Premji

    2016-01-01

    Full Text Available The 13 million nurses worldwide constitute most of the global healthcare workforce and are uniquely positioned to engage with others to address disparities in healthcare to achieve the goal of better health for all. A new vision for nurses involves active participation and collaboration with international colleagues across research practice and policy domains. Nursing can embrace new concepts and a new approach—“One World, One Health”—to animate nursing engagement in global health, as it is uniquely positioned to participate in novel ways to improve healthcare for the well-being of the global community. This opinion paper takes a historical and reflective approach to inform and inspire nurses to engage in global health practice, research, and policy to achieve the Sustainable Development Goals. It can be argued that a colonial perspective currently informs scholarship pertaining to nursing global health engagement. The notion of unidirectional relationships where those with resources support training of those less fortunate has dominated the framing of nursing involvement in low- and middle-income countries. This paper suggests moving beyond this conceptualization to a more collaborative and equitable approach that positions nurses as cocreators and brokers of knowledge. We propose two concepts, reverse innovation and two-way learning, to guide global partnerships where nurses are active participants.

  4. QUALITY OF NURSING CARE BASED ON ANALYSIS OF NURSING PERFORMANCE AND NURSE AND PATIENT SATISFACTION

    Directory of Open Access Journals (Sweden)

    Abdul Muhith

    2017-04-01

    Full Text Available Introduction: Nurses who frequently often contact to patients and most of their time serve patients in 24 hours, have an important role in caring for the patient. Patient satisfaction as quality indicator is the key success for competitiveness of service in hospital. The aim of this research was to develop nursing service quality model based on the nursing performance, nurse and patient satisfaction. Method: The research method used cross sectional study, at 14 wards of Gresik Hospital. Research factors were namely: oganization characteristic (organization culture and leadership, work factors (feedback and variety of nurses work, nurse characteristics (motivation, attitude, commitment and mental model, nursing practice, interpersonal communication, nurse and patient satisfaction. Statistical analysis of study data was analyzed by Partial Least Square (PLS. Results: The results of nursing performance revealed that nurse characteristic were not affected by organization culture and leadership style, nurse characteristics were affected by work factors, nurse characteristics affected nursing quality service (nursing practice, nursing professional, nurse and patient satisfaction, nurse satisfaction did not affect nursing professionals. Discussion: Based on the overall results of the development of nursing care model that was originally only emphasizes the process of nursing care only, should be consider the input factor of organizational characteristics, job characteristics, and characteristics of individual nurses and consider the process factors of nursing care standards and professional performance of nurses and to consider the outcome factors nurse and patient satisfaction. So in general the development model of quality of existing nursing care refers to a comprehensive system of quality.

  5. Nursing Home Quality Initiative

    Data.gov (United States)

    U.S. Department of Health & Human Services — This Nursing Home Quality Initiative (NHQI) website provides consumer and provider information regarding the quality of care in nursing homes. NHQI discusses quality...

  6. District nursing is vital.

    Science.gov (United States)

    Bliss, Julie

    2016-08-03

    Queen's Nursing Institute chief executive Crystal Oldman has welcomed the RCN congress resolution urging RCN council to lobby for all district nurses to have a specialist practice qualification. This provides the ideal route for future talent and must be supported.

  7. Exploring improvisation in nursing.

    Science.gov (United States)

    Hanley, Mary Anne; Fenton, Mary V

    2007-06-01

    Improvisation has long been considered a function of music, dance, and the theatre arts. An exploration of the definitions and characteristics of this concept in relation to the art and practice of nursing provide an opportunity to illuminate related qualities within the field of nursing. Nursing has always demonstrated improvisation because it is often required to meet the needs of patients in a rapidly changing environment. However, little has been done to identify improvisation in the practice of nursing or to teach improvisation as a nursing knowledge-based skill. This article strives to explore the concept of improvisation in nursing, to describe the characteristics of improvisation as applied to nursing, and to utilize case studies to illustrate various manifestations of improvisation in nursing practice.

  8. American Nephrology Nurses' Association

    Science.gov (United States)

    ... Join/Renew Jobs Contact Corporate Shop American Nephrology Nurses Association About ANNA Association About ANNA Strategic Plan ... CExpress Events National Events Chapter / Local Events Nephrology Nurses Week ANNA Education Modules CKD Modules Education Services ...

  9. Emergency Nurses Association

    Science.gov (United States)

    ... menu Join ENA Today! Membership in the Emergency Nurses Association offers a variety of benefits and allows ... a part of more than 42,000 emergency nurses working together to promote safe practice and safe ...

  10. Community Nursing Home (CNH)

    Data.gov (United States)

    Department of Veterans Affairs — The Community Nursing Home (CNH) database contains a list of all Community Nursing Home facilities under local contract to Veterans Health Administration (VHA). CNH...

  11. Forces in Motzkin paths in a wedge

    International Nuclear Information System (INIS)

    Janse van Rensburg, E J

    2006-01-01

    Entropic forces in models of Motzkin paths in a wedge geometry are considered as models of forces in polymers in confined geometries. A Motzkin path in the square lattice is a path from the origin to a point in the line Y = X while it never visits sites below this line, and it is constrained to give unit length steps only in the north and east directions and steps of length √2 in the north-east direction. Motzkin path models may be generalized to ensembles of NE-oriented paths above the line Y = rX, where r > 0 is an irrational number. These are paths giving east, north and north-east steps from the origin in the square lattice, and confined to the r-wedge formed by the Y-axis and the line Y = rX. The generating function g r of these paths is not known, but if r > 1, then I determine its radius of convergence to be t r = min (r-1)/r≤y≤r/(r+1) [y y (1-r(1-y)) 1-r(1-y) (r(1-y)-y) r(1-y)-y ] and if r is an element of (0, 1), then t r = 1/3. The entropic force the path exerts on the line Y rX may be computed from this. An asymptotic expression for the force for large values of r is given by F(r) = log(2r)/r 2 - (1+2log(2r))/2r 3 + O (log(2r)/r 4 ). In terms of the vertex angle α of the r-wedge, the moment of the force about the origin has leading terms F(α) log(2/α) - (α/2)(1+2log(2/α)) + O(α 2 log(2/α)) as α → 0 + and F(α) = 0 if α is element of [π/4, π/2]. Moreover, numerical integration of the force shows that the total work done by closing the wedge is 1.085 07... lattice units. An alternative ensemble of NE-oriented paths may be defined by slightly changing the generating function g r . In this model, it is possible to determine closed-form expressions for the limiting free energy and the force. The leading term in an asymptotic expansions for this force agrees with the leading term in the asymptotic expansion of the above model, and the subleading term only differs by a factor of 2

  12. Nursing 436A: Pediatric Oncology for Nurses.

    Science.gov (United States)

    Jackman, Cynthia L.

    A description is provided of "Pediatric Oncology for Nurses," the first in a series of three courses offered to fourth-year nursing students in pediatric oncology. The first section provides a course overview, discusses time assignments, and describes the target student population. Next, a glossary of terms, and lists of course goals, long-range…

  13. Marginalization and School Nursing

    Science.gov (United States)

    Smith, Julia Ann

    2004-01-01

    The concept of marginalization was first analyzed by nursing researchers Hall, Stevens, and Meleis. Although nursing literature frequently refers to this concept when addressing "at risk" groups such as the homeless, gays and lesbians, and those infected with HIV/AIDS, the concept can also be applied to nursing. Analysis of current school nursing…

  14. District nursing in Dominica

    NARCIS (Netherlands)

    Kolkman, PME; Luteijn, AJ; Nasiiro, RS; Bruney, [No Value; Smith, RJA; Meyboom-de Jong, B

    1998-01-01

    District nurses constitute the basis of the primary health care services in Dominica. All encounters of three district nurses were registered using the international classification of primary care. Information on other aspects of district nursing was collected by participating observation and the

  15. nurse managers ' perspectives

    African Journals Online (AJOL)

    2010-11-03

    Nov 3, 2010 ... non-nursing jobs which offer better salaries, more job satisfaction and better working hours (Ehlers. 2003:81) further ..... had advantages. Older nurses brought the human touch, while the younger nurses completed tasks expeditiously. Some of the responses that attest to these standpoints are: 'The older ...

  16. Intraprofessional relations in nursing.

    Science.gov (United States)

    Duddle, Maree; Boughton, Maureen

    2007-07-01

    This paper is a report of a study to explore the way in which Registered Nurses relate to and interact with each other in the workplace, and to identify factors that influence nurses' interactions with each other. Intraprofessional relations are an important topic both for nurses and nursing as we face the ongoing challenges of nurse shortages. Poor colleague relationships, together with workplace conflict, cause job dissatisfaction. As a consequence, some nurses leave the profession while others continue working but remain chronically unhappy. An explanatory multiple case study design was adopted. Data were collected from multiple sources on three different wards within one hospital in Australia between July 2005 and January 2006. The workplace can be a difficult place for both very experienced and less experienced nurses, regardless of the clinical environment. Nurses navigate their way in the workplace through a series of complex negotiations with each other and develop skills to assess the potential success of an interaction before approaching another nurse. Some also develop a resilience to conflict in their workplace, accepting it as part of working life. Creation of a more positive work environment requires increased understanding of the way nurses relate to each other and appreciation of the factors in the environment that contribute to conflict and a negative atmosphere. This appreciation is a necessary prerequisite to developing a more satisfying and productive workplace enhancing the recruitment of new nurses and the retention of experienced nurses.

  17. Path optimization method for the sign problem

    Directory of Open Access Journals (Sweden)

    Ohnishi Akira

    2018-01-01

    Full Text Available We propose a path optimization method (POM to evade the sign problem in the Monte-Carlo calculations for complex actions. Among many approaches to the sign problem, the Lefschetz-thimble path-integral method and the complex Langevin method are promising and extensively discussed. In these methods, real field variables are complexified and the integration manifold is determined by the flow equations or stochastically sampled. When we have singular points of the action or multiple critical points near the original integral surface, however, we have a risk to encounter the residual and global sign problems or the singular drift term problem. One of the ways to avoid the singular points is to optimize the integration path which is designed not to hit the singular points of the Boltzmann weight. By specifying the one-dimensional integration-path as z = t +if(t(f ϵ R and by optimizing f(t to enhance the average phase factor, we demonstrate that we can avoid the sign problem in a one-variable toy model for which the complex Langevin method is found to fail. In this proceedings, we propose POM and discuss how we can avoid the sign problem in a toy model. We also discuss the possibility to utilize the neural network to optimize the path.

  18. The formal path integral and quantum mechanics

    International Nuclear Information System (INIS)

    Johnson-Freyd, Theo

    2010-01-01

    Given an arbitrary Lagrangian function on R d and a choice of classical path, one can try to define Feynman's path integral supported near the classical path as a formal power series parameterized by 'Feynman diagrams', although these diagrams may diverge. We compute this expansion and show that it is (formally, if there are ultraviolet divergences) invariant under volume-preserving changes of coordinates. We prove that if the ultraviolet divergences cancel at each order, then our formal path integral satisfies a 'Fubini theorem' expressing the standard composition law for the time evolution operator in quantum mechanics. Moreover, we show that when the Lagrangian is inhomogeneous quadratic in velocity such that its homogeneous-quadratic part is given by a matrix with constant determinant, then the divergences cancel at each order. Thus, by 'cutting and pasting' and choosing volume-compatible local coordinates, our construction defines a Feynman-diagrammatic 'formal path integral' for the nonrelativistic quantum mechanics of a charged particle moving in a Riemannian manifold with an external electromagnetic field.

  19. Perfect discretization of reparametrization invariant path integrals

    International Nuclear Information System (INIS)

    Bahr, Benjamin; Dittrich, Bianca; Steinhaus, Sebastian

    2011-01-01

    To obtain a well-defined path integral one often employs discretizations. In the case of gravity and reparametrization-invariant systems, the latter of which we consider here as a toy example, discretizations generically break diffeomorphism and reparametrization symmetry, respectively. This has severe implications, as these symmetries determine the dynamics of the corresponding system. Indeed we will show that a discretized path integral with reparametrization-invariance is necessarily also discretization independent and therefore uniquely determined by the corresponding continuum quantum mechanical propagator. We use this insight to develop an iterative method for constructing such a discretized path integral, akin to a Wilsonian RG flow. This allows us to address the problem of discretization ambiguities and of an anomaly-free path integral measure for such systems. The latter is needed to obtain a path integral, that can act as a projector onto the physical states, satisfying the quantum constraints. We will comment on implications for discrete quantum gravity models, such as spin foams.

  20. Perfect discretization of reparametrization invariant path integrals

    Science.gov (United States)

    Bahr, Benjamin; Dittrich, Bianca; Steinhaus, Sebastian

    2011-05-01

    To obtain a well-defined path integral one often employs discretizations. In the case of gravity and reparametrization-invariant systems, the latter of which we consider here as a toy example, discretizations generically break diffeomorphism and reparametrization symmetry, respectively. This has severe implications, as these symmetries determine the dynamics of the corresponding system. Indeed we will show that a discretized path integral with reparametrization-invariance is necessarily also discretization independent and therefore uniquely determined by the corresponding continuum quantum mechanical propagator. We use this insight to develop an iterative method for constructing such a discretized path integral, akin to a Wilsonian RG flow. This allows us to address the problem of discretization ambiguities and of an anomaly-free path integral measure for such systems. The latter is needed to obtain a path integral, that can act as a projector onto the physical states, satisfying the quantum constraints. We will comment on implications for discrete quantum gravity models, such as spin foams.

  1. Who cares? Offering emotion work as a 'gift' in the nursing labour process.

    Science.gov (United States)

    Bolton, S C

    2000-09-01

    Who cares? Offering emotion work as a 'gift' in the nursing labour process The emotional elements of the nursing labour process are being recognized increasingly. Many commentators stress that nurses' 'emotional labour' is hard and productive work and should be valued in the same way as physical or technical labour. However, the term 'emotional labour' fails to conceptualize the many occasions when nurses not only work hard on their emotions in order to present the detached face of a professional carer, but also to offer authentic caring behaviour to patients in their care. Using qualitative data collected from a group of gynaecology nurses in an English National Health Service (NHS) Trust hospital, this paper argues that nursing work is emotionally complex and may be better understood by utilizing a combination of Hochschild's concepts: emotion work as a 'gift' in addition to 'emotional labour'. The gynaecology nurses in this study describe their work as 'emotionful' and therefore it could be said that this particular group of nurses represent a distinct example. Nevertheless, though it is impossible to generalize from limited data, the research presented in this paper does highlight the emotional complexity of the nursing labour process, expands the current conceptual analysis, and offers a path for future research. The examination further emphasizes the need to understand and value the motivations behind nurses' emotion work and their wish to maintain caring as a central value in professional nursing.

  2. Nursing informatics: the future now.

    Science.gov (United States)

    Mamta

    2014-01-01

    Technological advancements in the health care field have always impacted the health care practices. Nursing practice has also been greatly influenced by the technology. In the recent years, use of information technology including computers, handheld digital devices, internet has advanced the nursing by bridging the gap from nursing as an art to nursing as science. In every sphere of nursing practice, nursing research, nursing education and nursing informatics play a very important role. If used properly it is a way to save time, helping to provide quality nursing care and increases the proficiency of nursing personnel.

  3. Identification of nursing management diagnoses.

    Science.gov (United States)

    Morrison, R S

    1997-02-01

    Theories from nursing and management provide frameworks for enhancing effectiveness of nursing management practice. The concept nursing management diagnosis has been developed by integrating nursing diagnosis and organizational diagnosis as a basis for nurse manager decision-making. Method triangulation was used to identify problems of managing nursing units, to validate those problems for relevancy to practice, to generate nursing management diagnoses, and to validate the diagnoses. Diagnoses were validated according to a definition of nursing management diagnosis provided. Of the 72 nursing management diagnoses identified, 66 were validated at a 70% level of agreement by nurse managers participating in the study.

  4. The relationship between stadium sportscapes dimensions, desire ...

    African Journals Online (AJOL)

    Leisure and sport services require spectators to spend extended periods of time in the physical surroundings of the service provider. ... to a limited extent on sportscapes has sought to establish the importance of cues in service environments.

  5. Increasing gender and ethnic diversity in the health care workforce: The case of Arab male nurses in Israel.

    Science.gov (United States)

    Popper-Giveon, Ariela; Keshet, Yael; Liberman, Ido

    2015-01-01

    Despite recent attempts at increasing health care workforce diversity, a measure that was found to reduce health disparities, men remain a minority in the traditionally female occupation of nursing. One exception to this observation is the Arab ethnic minority in Israel that includes numerous male nurses. Determining the percentage of Arab male nurses in the Israeli health care system and understanding how they perceive and negotiate their masculinity. We used both quantitative and qualitative methodologies. Quantitative statistics were obtained from the 2011 to 2013 Labor Force Survey conducted by the Israel Central Bureau of Statistics and qualitative data derived from 13 semi-structured, in-depth interviews with Arab nurses working in Israeli public hospitals, conducted during 2014. Nursing constitutes a prominent employment path for Arab men in Israel and is more prominent as an employment path for Arab men than that for Jewish men. A total of 38.6% of all Arab nurses were men and only 7.5% of Jews and others. Quantitative data thus reveal that men do not constitute a minority among Arab nurses. Similarly, qualitative findings show that Arab male nurses do not manifest marginal masculinity but rather demonstrate many elements of hegemonic masculinity. Arab male nurses distinguish themselves and differentiate their roles from those of female nurses, expressing their motives for choosing the nursing profession in terms of hegemonic gender roles for men in Arab society in Israel. Although nursing is a traditionally female occupation, it offers an opportunity for Arab men to demonstrate their masculinity. Arab male nurses choose nursing as a means rather than an end, however, meaning that many of them might not remain in the profession. This observation is significant because of the importance of retaining men from ethnic minorities in nursing, especially in multicultural societies. Copyright © 2015 Elsevier Inc. All rights reserved.

  6. Fieldwork in nursing research: positionality, practicalities and predicaments.

    Science.gov (United States)

    Borbasi, Sally; Jackson, Debra; Wilkes, Lesley

    2005-09-01

    This paper draws on the literature to explore some of the issues of concern to nurses undertaking fieldwork in contemporary healthcare settings. The emergence of poststructuralist and postmodern perspectives has raised questions about ethnographic approaches, and problematized the role of researchers in the construction of plausible and credible ethnographic accounts. As a practice discipline, nursing needs to negotiate a thorny path between methodological purity and practical application, with nurse researchers required to take account of both philosophical and pragmatic concerns. There is general agreement that researching with an individual or group rather than researching on an individual or group is the more effective way to approach fieldwork. Feminist writers appear to have dealt with this issue best, advocating intimacy, self-disclosure, and reciprocity in encounters with research participants. The duality of the nurse researcher role; power and politics and the moral implications of fieldwork are acknowledged as factors influencing nurses in the planning and conduct of fieldwork. Nurses as researchers may be better equipped than other social researchers to deal with contingencies in the field. Laying the epistemological ground for the participant observer role during fieldwork and understanding its impact on the resultant ethnographic account is essential to methodological rigour in field research. Consideration of some of the practicalities and predicaments experienced by nurses as researchers when conducting fieldwork prior to going out into the field is an important research strategy and will facilitate methodological potency.

  7. Critical discourse analysis of social justice in nursing's foundational documents.

    Science.gov (United States)

    Valderama-Wallace, Claire P

    2017-07-01

    Social inequities threaten the health of the global population. A superficial acknowledgement of social justice by nursing's foundational documents may limit the degree to which nurses view injustice as relevant to nursing practice and education. The purpose was to examine conceptualizations of social justice and connections to broader contexts in the most recent editions. Critical discourse analysis examines and uncovers dynamics related to power, language, and inequality within the American Nurses Association's Code of Ethics, Scope and Standards of Practice, and Social Policy Statement. This analysis found ongoing inconsistencies in conceptualizations of social justice. Although the Code of Ethics integrates concepts related to social justice far more than the other two, tension between professionalism and social change emerges. The discourse of professionalism renders interrelated cultural, social, economic, historical, and political contexts nearly invisible. Greater consistency would provide a clearer path for nurses to mobilize and engage in the courageous work necessary to address social injustice. These findings also call for an examination of how nurses can critique and use the power and privilege of professionalism to amplify the connection between social institutions and health equity in nursing education, practice, and policy development. © 2017 Wiley Periodicals, Inc.

  8. The influence of nursing care integration services on nurses' work satisfaction and quality of nursing care.

    Science.gov (United States)

    Ryu, Jeong-Im; Kim, Kisook

    2018-06-20

    To investigate differences in work satisfaction and quality of nursing services between nurses from the nursing care integration service and general nursing units in Korea. The nursing care integration service was recently introduced in Korea to improve patient health outcomes through the provision of high quality nursing services and to relieve the caregiving burden of patients' families. In this cross-sectional study, data were collected from a convenience sample of 116 and 156 nurses working in nursing care integration service and general units, respectively. The data were analysed using descriptive statistics, t tests and one-way analysis of variance. Regarding work satisfaction, nursing care integration service nurses scored higher than general unit nurses on professional status, autonomy and task requirements, but the overall scores showed no significant differences. Scores on overall quality of nursing services, responsiveness and assurance were higher for nursing care integration service nurses than for general unit nurses. Nursing care integration service nurses scored higher than general unit nurses on some aspects of work satisfaction and quality of nursing services. Further studies with larger sample sizes will contribute to improving the quality of nursing care integration service units. These findings can help to establish strategies for the implementation and efficient operation of the nursing care integration service system, for the improvement of the quality of nursing services, and for successfully implementing and expanding nursing care integration service services in other countries. © 2018 John Wiley & Sons Ltd.

  9. Paths to Licensure: Things Physicists Should Know

    Science.gov (United States)

    Stewart, Gay; Stewart, John

    2016-03-01

    The path to licensure can be quite complicated, and can thwart a physics department's efforts to produce more and better prepared high school physics teachers. Each state has different pathways to licensure. Acronyms like CAEP and SPA are not within the normal physicist's vocabulary. Some understanding of this topic can allow physics faculty advisers to help our students so that fewer are derailed on their path to the classroom, or take a path that will leave them less well prepared if they do find themselves there. Examples of different approaches that work within state licensure systems from two different states will be presented. Physics teacher preparation efforts in both Arkansas and West Virginia have been supported in part by the Physics Teacher Education Coalition (PhysTEC).

  10. A taxonomy of integral reaction path analysis

    Energy Technology Data Exchange (ETDEWEB)

    Grcar, Joseph F.; Day, Marcus S.; Bell, John B.

    2004-12-23

    W. C. Gardiner observed that achieving understanding through combustion modeling is limited by the ability to recognize the implications of what has been computed and to draw conclusions about the elementary steps underlying the reaction mechanism. This difficulty can be overcome in part by making better use of reaction path analysis in the context of multidimensional flame simulations. Following a survey of current practice, an integral reaction flux is formulated in terms of conserved scalars that can be calculated in a fully automated way. Conditional analyses are then introduced, and a taxonomy for bidirectional path analysis is explored. Many examples illustrate the resulting path analysis and uncover some new results about nonpremixed methane-air laminar jets.

  11. Path integral solution of the Dirichlet problem

    International Nuclear Information System (INIS)

    LaChapelle, J.

    1997-01-01

    A scheme for functional integration developed by Cartier/DeWitt-Morette is first reviewed and then employed to construct the path integral representation for the solution of the Dirichlet problem in terms of first exit time. The path integral solution is then applied to calculate the fixed-energy point-to-point transition amplitude both in configuration and phase space. The path integral solution can also be derived using physical principles based on Feynman close-quote s original reasoning. We check that the Fourier transform in energy of the fixed-energy point-to-point transition amplitude gives the well known time-dependent transition amplitude, and calculate the WKB approximation. copyright 1997 Academic Press, Inc

  12. Reaction path simulations in multicomponent materials

    International Nuclear Information System (INIS)

    Seifert, H.J.

    1999-01-01

    The CALPHAD (calculation of phase diagrams) method is used in combination with selected experimental investigations to derive reaction paths in multicomponent systems. The method is illustrated by applying computerized thermodynamic databases and suitable software to explain quantitatively the thermal degradation of precursor-derived Si-C-N ceramics and the nitridation of titanium carbide. Reaction sequences in the Si 3 N 4 -SiC-TiC x N l-x -C-N system are illustrated by graphical representation of compatibility regions and indicated reaction paths. From these results the experimentally known microstructure development of TiC reinforced Si 3 N 4 ceramics is explained and quantitative information is provided to optimize the microstructure of such materials. The concept of reaction paths for the understanding of rapid solidification processes is shown by the example of AZ type Mg casting alloys. (orig.)

  13. Approximate Shortest Homotopic Paths in Weighted Regions

    KAUST Repository

    Cheng, Siu-Wing

    2010-01-01

    Let P be a path between two points s and t in a polygonal subdivision T with obstacles and weighted regions. Given a relative error tolerance ε ∈(0,1), we present the first algorithm to compute a path between s and t that can be deformed to P without passing over any obstacle and the path cost is within a factor 1 + ε of the optimum. The running time is O(h 3/ε2 kn polylog(k, n, 1/ε)), where k is the number of segments in P and h and n are the numbers of obstacles and vertices in T, respectively. The constant in the running time of our algorithm depends on some geometric parameters and the ratio of the maximum region weight to the minimum region weight. © 2010 Springer-Verlag.

  14. Approximate shortest homotopic paths in weighted regions

    KAUST Repository

    Cheng, Siuwing

    2012-02-01

    A path P between two points s and t in a polygonal subdivision T with obstacles and weighted regions defines a class of paths that can be deformed to P without passing over any obstacle. We present the first algorithm that, given P and a relative error tolerance ε (0, 1), computes a path from this class with cost at most 1 + ε times the optimum. The running time is O(h 3/ε 2kn polylog (k,n,1/ε)), where k is the number of segments in P and h and n are the numbers of obstacles and vertices in T, respectively. The constant in the running time of our algorithm depends on some geometric parameters and the ratio of the maximum region weight to the minimum region weight. © 2012 World Scientific Publishing Company.

  15. The effect of solar and lunar currents on simultaneous phase path, group path and amplitude measurements

    International Nuclear Information System (INIS)

    Baulch, R.N.E.; Butcher, E.C.

    1984-01-01

    The solar and lunar variations in the phase path, group path and amplitude of a fixed frequency transmission were obtained at the September equinox over a slightly oblique path. The phase of the lunar semi-diurnal tide in the phase path and amplitude were similar, the maxima occurring near 0200 lunar time, whereas the group path had a maximum near 0800 lunar time. These results were compared with other results obtained near the same location. The results suggest a complex situation in the E-region, where the height of the lunar current depends on season, and also suggest that the location and distribution of the solar and lunar currents may be different. (author)

  16. Tornado intensity estimated from damage path dimensions.

    Directory of Open Access Journals (Sweden)

    James B Elsner

    Full Text Available The Newcastle/Moore and El Reno tornadoes of May 2013 are recent reminders of the destructive power of tornadoes. A direct estimate of a tornado's power is difficult and dangerous to get. An indirect estimate on a categorical scale is available from a post-storm survery of the damage. Wind speed bounds are attached to the scale, but the scale is not adequate for analyzing trends in tornado intensity separate from trends in tornado frequency. Here tornado intensity on a continuum is estimated from damage path length and width, which are measured on continuous scales and correlated to the EF rating. The wind speeds on the EF scale are treated as interval censored data and regressed onto the path dimensions and fatalities. The regression model indicates a 25% increase in expected intensity over a threshold intensity of 29 m s(-1 for a 100 km increase in path length and a 17% increase in expected intensity for a one km increase in path width. The model shows a 43% increase in the expected intensity when fatalities are observed controlling for path dimensions. The estimated wind speeds correlate at a level of .77 (.34, .93 [95% confidence interval] with a small sample of wind speeds estimated independently from a doppler radar calibration. The estimated wind speeds allow analyses to be done on the tornado database that are not possible with the categorical scale. The modeled intensities can be used in climatology and in environmental and engineering applications. Research is needed to understand the upward trends in path length and width.

  17. Tornado intensity estimated from damage path dimensions.

    Science.gov (United States)

    Elsner, James B; Jagger, Thomas H; Elsner, Ian J

    2014-01-01

    The Newcastle/Moore and El Reno tornadoes of May 2013 are recent reminders of the destructive power of tornadoes. A direct estimate of a tornado's power is difficult and dangerous to get. An indirect estimate on a categorical scale is available from a post-storm survery of the damage. Wind speed bounds are attached to the scale, but the scale is not adequate for analyzing trends in tornado intensity separate from trends in tornado frequency. Here tornado intensity on a continuum is estimated from damage path length and width, which are measured on continuous scales and correlated to the EF rating. The wind speeds on the EF scale are treated as interval censored data and regressed onto the path dimensions and fatalities. The regression model indicates a 25% increase in expected intensity over a threshold intensity of 29 m s(-1) for a 100 km increase in path length and a 17% increase in expected intensity for a one km increase in path width. The model shows a 43% increase in the expected intensity when fatalities are observed controlling for path dimensions. The estimated wind speeds correlate at a level of .77 (.34, .93) [95% confidence interval] with a small sample of wind speeds estimated independently from a doppler radar calibration. The estimated wind speeds allow analyses to be done on the tornado database that are not possible with the categorical scale. The modeled intensities can be used in climatology and in environmental and engineering applications. Research is needed to understand the upward trends in path length and width.

  18. Which coordinate system for modelling path integration?

    Science.gov (United States)

    Vickerstaff, Robert J; Cheung, Allen

    2010-03-21

    Path integration is a navigation strategy widely observed in nature where an animal maintains a running estimate, called the home vector, of its location during an excursion. Evidence suggests it is both ancient and ubiquitous in nature, and has been studied for over a century. In that time, canonical and neural network models have flourished, based on a wide range of assumptions, justifications and supporting data. Despite the importance of the phenomenon, consensus and unifying principles appear lacking. A fundamental issue is the neural representation of space needed for biological path integration. This paper presents a scheme to classify path integration systems on the basis of the way the home vector records and updates the spatial relationship between the animal and its home location. Four extended classes of coordinate systems are used to unify and review both canonical and neural network models of path integration, from the arthropod and mammalian literature. This scheme demonstrates analytical equivalence between models which may otherwise appear unrelated, and distinguishes between models which may superficially appear similar. A thorough analysis is carried out of the equational forms of important facets of path integration including updating, steering, searching and systematic errors, using each of the four coordinate systems. The type of available directional cue, namely allothetic or idiothetic, is also considered. It is shown that on balance, the class of home vectors which includes the geocentric Cartesian coordinate system, appears to be the most robust for biological systems. A key conclusion is that deducing computational structure from behavioural data alone will be difficult or impossible, at least in the absence of an analysis of random errors. Consequently it is likely that further theoretical insights into path integration will require an in-depth study of the effect of noise on the four classes of home vectors. Copyright 2009 Elsevier Ltd

  19. Leadership styles in nursing.

    Science.gov (United States)

    Cope, Vicki; Murray, Melanie

    2017-06-21

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

  20. Nursing: caring or codependent?

    Science.gov (United States)

    Caffrey, R A; Caffrey, P A

    1994-01-01

    Can nurses practice caring within a healthcare system that promotes codependency? Caring promotes mutual empowerment of all participants while codependent caring disempowers. Nurses are expected to practice caring with clients, The authors contend, however, that nursing, as historically and currently practiced within bureaucratic/patriarchal organizations, is founded on a value system that fosters codependency. Until nursing is practiced within the context of caring organizations and a caring healthcare system, nurses will continue to be powerless to shape their own practice as carers and burnout will continue to be a problem.

  1. The transformation techniques in path integration

    International Nuclear Information System (INIS)

    Inomata, A.

    1989-01-01

    In this paper general remarks are made concerning the time transformation techniques in path integration and their implementations. Time transformations may be divided into two classes: global (integrable) time transformations and local (nonintegrable) time transformations. Although a brief account of global time transformations is given, attention is focused on local transformations. First, time transformations in the classical Kepler problem are reviewed. Then, problems encountered in implementing a local time transformation in quantum mechanics are analyzed. A several propositions pertinent to the implementation of local time transformations, particularly basic to the local time rescaling trick in a discretized path integral, are presented

  2. Flight Path Recovery System (FPRS) design study

    Energy Technology Data Exchange (ETDEWEB)

    1978-09-01

    The study contained herein presents a design for a Flight Path Recovery System (FPPS) for use in the NURE Program which will be more accurate than systems presently used, provide position location data in digital form suitable for automatic data processing, and provide for flight path recovery in a more economic and operationally suitable manner. The design is based upon the use of presently available hardware and technoloy, and presents little, it any, development risk. In addition, a Flight Test Plan designed to test the FPRS design concept is presented.

  3. Canonical transformations and hamiltonian path integrals

    International Nuclear Information System (INIS)

    Prokhorov, L.V.

    1982-01-01

    Behaviour of the Hamiltonian path integrals under canonical transformations produced by a generator, is investigated. An exact form is determined for the kernel of the unitary operator realizing the corresponding quantum transformation. Equivalence rules are found (the Hamiltonian formalism, one-dimensional case) enabling one to exclude non-standard terms from the action. It is shown that the Hamiltonian path integral changes its form under cononical transformations: in the transformed expression besides the classical Hamiltonian function there appear some non-classical terms

  4. Flight Path Recovery System (FPRS) design study

    International Nuclear Information System (INIS)

    1978-09-01

    The study contained herein presents a design for a Flight Path Recovery System (FPPS) for use in the NURE Program which will be more accurate than systems presently used, provide position location data in digital form suitable for automatic data processing, and provide for flight path recovery in a more economic and operationally suitable manner. The design is based upon the use of presently available hardware and technoloy, and presents little, it any, development risk. In addition, a Flight Test Plan designed to test the FPRS design concept is presented

  5. Field theory a path integral approach

    CERN Document Server

    Das, Ashok

    2006-01-01

    This unique book describes quantum field theory completely within the context of path integrals. With its utility in a variety of fields in physics, the subject matter is primarily developed within the context of quantum mechanics before going into specialized areas.Adding new material keenly requested by readers, this second edition is an important expansion of the popular first edition. Two extra chapters cover path integral quantization of gauge theories and anomalies, and a new section extends the supersymmetry chapter, where singular potentials in supersymmetric systems are described.

  6. Graphs with not all possible path-kernels

    DEFF Research Database (Denmark)

    Aldred, Robert; Thomassen, Carsten

    2004-01-01

    The Path Partition Conjecture states that the vertices of a graph G with longest path of length c may be partitioned into two parts X and Y such that the longest path in the subgraph of G induced by X has length at most a and the longest path in the subgraph of G induced by Y has length at most b...

  7. School Nurse Workload.

    Science.gov (United States)

    Endsley, Patricia

    2017-02-01

    The purpose of this scoping review was to survey the most recent (5 years) acute care, community health, and mental health nursing workload literature to understand themes and research avenues that may be applicable to school nursing workload research. The search for empirical and nonempirical literature was conducted using search engines such as Google Scholar, PubMed, CINAHL, and Medline. Twenty-nine empirical studies and nine nonempirical articles were selected for inclusion. Themes that emerged consistent with school nurse practice include patient classification systems, environmental factors, assistive personnel, missed nursing care, and nurse satisfaction. School nursing is a public health discipline and population studies are an inherent research priority but may overlook workload variables at the clinical level. School nurses need a consistent method of population assessment, as well as evaluation of appropriate use of assistive personnel and school environment factors. Assessment of tasks not directly related to student care and professional development must also be considered in total workload.

  8. [Homophobia among nursing students].

    Science.gov (United States)

    Campo-Arias, Adalberto; Herazo, Edwin; Cogollo, Zuleima

    2010-09-01

    Homophobia is defined as a general negative attitude towards homosexual persons, with implications on public health. This fact has been less investigated among nursing students. The objective of this review was to learn about the prevalence of homophobia and its associated variables among nursing students. A systematic review was performed on original articles published in EBSCO, Imbiomed, LILACS, MEDLINE, Ovid, and ProQuest, including articles published between 1998 and 2008 in English, Portuguese and Spanish. Keywords used were homophobia, homosexuality, and nursing students. Descriptive analysis was performed. Eight studies were analyzed. The incidence of homophobia in nursing students is between 7% and 16%. Homophobia is more common among males and religious conservatism people. Homophobia is quite frequent in nursing students. This negative attitude toward homosexuality may affect services and care giving by nursing professions and could have negative implications in nursing practice.

  9. On becoming a Nurse

    DEFF Research Database (Denmark)

    Thrysøe, Lars

    their 6th semester, following clinical internship at a somatic hospital (Part I), and again a half-year into their new roles as Registered Nurses (Part II). Fieldwork and interviews focuses on the interaction and collaboration between participants and other health personnel as well as the Expectations......  Ph.D. Student: Mlp. Lars Thrysøe   Enrolment: 1 September 2006   Project Title: "On becoming a nurse. A Study on the Expectations of Final Nursing Student And Their Experiences on Becoming Registered Nurses"   Supervisors: Professor Lis Wagner Dr.PH, RN, and Associate Professor Lise Hounsgaard...... in number and marginalization of nurses.  National and international studies show that both final year nursing students and new Registered Nurses are unsure about the extent to which they can live up to the expectations set for them by the profession and to those expectations that they have set...

  10. Nurses' shift reports

    DEFF Research Database (Denmark)

    Buus, Niels; Hoeck, Bente; Hamilton, Bridget Elizabeth

    2017-01-01

    AIMS AND OBJECTIVES: To identify reporting practices that feature in studies of nurses' shift reports across diverse nursing specialities. The objectives were to perform an exhaustive systematic literature search and to critically review the quality and findings of qualitative field studies...... of nurses' shift reports. BACKGROUND: Nurses' shift reports are routine occurrences in healthcare organisations that are viewed as crucial for patient outcomes, patient safety and continuity of care. Studies of communication between nurses attend primarily to 1:1 communication and analyse the adequacy...... and accuracy of patient information and feature handovers at the bedside. Still, verbal reports between groups of nurses about patients are commonplace. Shift reports are obvious sites for studying the situated accomplishment of professional nursing at the group level. This review is focused exclusively...

  11. Empathy and nurse education.

    Science.gov (United States)

    Williams, Julia; Stickley, Theodore

    2010-11-01

    It is widely accepted that the ability of nurses to empathise with their patients is a desirable quality. There is however little discussion of the implications of this for nurse educators. This article reviews the nursing and counselling literature related to empathy. We begin with an exploration of different perspectives of empathy; from its behavioural and measurable characteristics to its less tangible, intuitive qualities. By drawing upon both policy and research, it is clear that patients want empathic and emotionally competent nurses. Nurse educators therefore have a responsibility to provide an education that engenders empathic understanding. We explore the implications of these findings for nurse education, identifying key areas for consideration in the preparation of emotionally skilled, empathic student nurses. Copyright © 2010 Elsevier Ltd. All rights reserved.

  12. Walking path-planning method for multiple radiation areas

    International Nuclear Information System (INIS)

    Liu, Yong-kuo; Li, Meng-kun; Peng, Min-jun; Xie, Chun-li; Yuan, Cheng-qian; Wang, Shuang-yu; Chao, Nan

    2016-01-01

    Highlights: • Radiation environment modeling method is designed. • Path-evaluating method and segmented path-planning method are proposed. • Path-planning simulation platform for radiation environment is built. • The method avoids to be misled by minimum dose path in single area. - Abstract: Based on minimum dose path-searching method, walking path-planning method for multiple radiation areas was designed to solve minimum dose path problem in single area and find minimum dose path in the whole space in this paper. Path-planning simulation platform was built using C# programming language and DirectX engine. The simulation platform was used in simulations dealing with virtual nuclear facilities. Simulation results indicated that the walking-path planning method is effective in providing safety for people walking in nuclear facilities.

  13. Nursing education in Norway.

    Science.gov (United States)

    Kyrkjebø, Jane Mikkelsen; Mekki, Tone Elin; Hanestad, Berit Rokne

    2002-05-01

    The aim of this paper is to describe nursing education in Norway and some essential questions and challenges regarding the undergraduate and newly graduated nurses' competencies and functionally preparedness. The first formal training of nurses in Norway started in Oslo in 1886. Since then the education has changed considerably. As long as society is changing, and nurses are going to meet and adapt to societies needs, the education of nurses will also have to change continuously. The present general plan of nursing education has gone through a long process. The discussions have concerned the content of medical and natural science subjects, the practical part of the training and the relation between theory and practice. There are challenges in nursing education in Norway today. We have seen that recruitment has decreased, and that nurses seek jobs where they are better paid. To increase the accessibility distance and part-time education has been established. The theory-practice gap will always exist. Therefore we should aim to prepare the students to minimize this gap in a way that they can combine training of nursing with training in improvement. The demand of a masters degree to be a nursing teacher has reduced the teachers' ability to keep up their practical skills. The government pays nursing teachers who want to practice as nurses for several months to maintain their salary level during that period. There are many possibilities to improve nursing education in Norway. We are on our way with highly qualified teachers and students, and we still have enough good applicants. The new general plan and new law for universities and university colleges offer great opportunities. However, the shortage of nurses is a great challenge for further quality improvement both in clinical practice and in education.

  14. Nursing career fulfillment: statistics and statements from registered nurses.

    Science.gov (United States)

    Reineck, Carol; Furino, Antonio

    2005-01-01

    A state-level survey of registered nurses confirmed national findings and raised new issues. Findings revealed that while nurses love the intrinsic reward of nursing, they report workplace, relationship, and stress issues which contribute to frustration and exhaustion. These issues may prevent registered nurses from giving the nursing care they desire to deliver, hastening preventable retirement and costly turnover decisions.

  15. On the structure of path-like trees

    OpenAIRE

    Muntaner Batle, Francesc Antoni; Rius Font, Miquel

    2007-01-01

    We study the structure of path-like trees. In order to do this, we introduce a set of trees that we call expandable trees. In this paper we also generalize the concept of path-like trees and we call such generalization generalized path-like trees. As in the case of path-like trees, generalized path-like trees, have very nice labeling properties.

  16. Iranian nurses self-perception -- factors influencing nursing image.

    Science.gov (United States)

    Varaei, Shokoh; Vaismoradi, Mojtaba; Jasper, Melanie; Faghihzadeh, Soghrat

    2012-05-01

    The purpose of this study was to describe the perspectives of Iranian nurses regarding factors influencing nursing image. Nursing image is closely tied to the nurse's role and identity, influencing clinical performance, job satisfaction and quality of care. Images of nursing and nurses are closely linked to the cultural context in which nursing is practised, hence, this study explores how Iranian nurses perceive the factors that influence their own image. A descriptive study using a survey design was conducted with 220 baccalaureate qualified nurses working in four teaching hospitals in an urban area of Iran. A Nursing Image Questionnaire was used and analysed using descriptive and inferential statistics. In the domains of 'characteristics required for entry to work', 'social role characteristics of nursing' and 'prestige, economic and social status, and self image' the nurses had negative images. 'Reward' and 'opportunity for creativity and originality' were factors that least influenced choosing nursing as a career. The presence of a nurse in the family and working in the hospital had the greatest impact on the establishment of nurses' nursing image. Improving the nursing profession's prestige and social position as well as providing the opportunity for creativity and originality in nursing practice will change the self-image of Iranian nurses, facilitating effective and lasting changes in nursing's image. Nurse managers are well-placed to influence nurses' perceptions of nursing's image. Given the finding that thinking about leaving a job positively correlates with holding a negative nursing image, nurse managers need to consider how they can work effectively with their staff to enhance morale and nurses' experience of their job. © 2012 Blackwell Publishing Ltd.

  17. The impact of workplace relationships on engagement, well-being, commitment and turnover for nurses in Australia and the USA.

    Science.gov (United States)

    Brunetto, Yvonne; Xerri, Matthew; Shriberg, Art; Farr-Wharton, Rod; Shacklock, Kate; Newman, Stefanie; Dienger, Joy

    2013-12-01

    We examined the impact of workplace relationships (perceived organizational support, supervisor-nurse relationships and teamwork) on the engagement, well-being, organizational commitment and turnover intentions of nurses working in Australian and USA hospitals. In a global context of nurse shortages, knowledge about factors impacting nurse retention is urgently sought. We postulated, using the Social Exchange Theory, that nurses' turnover intentions would be affected by several factors and especially their relationships at work. Based on the literature review, data were collected via a self-report survey to test the hypotheses. A self-report survey was used to gather data in 2010-2012 from 510 randomly chosen nurses from Australian hospitals and 718 nurses from US hospitals. A multi-group structural equation modelling analysis identified significant paths and compared the impact between countries. The findings indicate that this model was more effective in predicting the correlations between variables for nurses in Australia compared with the USA. Most paths predicted were confirmed for Australia, except for the impact of teamwork on organizational commitment and turnover, plus the impact of engagement on turnover. In contrast, none of the paths related to supervisor-subordinate relationships was significant for the USA; neither were the paths from teamwork to organizational commitment or turnover. Our findings suggest that well-being is a predictor of turnover intentions, meaning that healthcare managers need to consider nurses' well-being in everyday decision-making, especially in the cost-cutting paradigm that pervades healthcare provision in nearly every country. This is important because nurses are in short supply and this situation will continue to worsen, because many countries have an ageing population. © 2013 John Wiley & Sons Ltd.

  18. Registered nurse leadership style and confidence in delegation.

    Science.gov (United States)

    Saccomano, Scott J; Pinto-Zipp, Genevieve

    2011-05-01

      Leadership and confidence in delegation are two important explanatory constructs of nursing practice. The relationship between these constructs, however, is not clearly understood. To be successful in their roles as leaders, regardless of their experience, registered nurses (RNs) need to understand how to best delegate. The present study explored and described the relationship between RN leadership styles, demographic variables and confidence in delegation in a community teaching hospital. Utilizing a cross-sectional survey design, RNs employed in one acute care hospital completed questionnaires that measured leadership style [Path-Goal Leadership Questionnaire (PGLQ)] and confidence in delegating patient care tasks [Confidence and Intent to Delegate Scale (CIDS)]. Contrary to expectations, the data did not confirm a relationship between confidence in delegating tasks to unlicensed assistive personnel (UAPs) and leadership style. Nurses who were diploma or associate degree prepared were initially less confident in delegating tasks to UAPs as compared with RNs holding a bachelor's degree or higher. Further, after 5 years of clinical nursing experience, nurses with less educational experience reported more confidence in delegating tasks as compared with RNs with more educational experience. The lack of a relationship between leadership style and confidence in delegating patient care tasks were discussed in terms of the PGLQ classification criteria and hospital unit differences. As suggested by the significant two-way interaction between educational preparation and clinical nursing experience, changes in the nurse's confidence in delegating patient care tasks to UAPs was a dynamic changing variable that resulted from the interplay between amount of educational preparation and years of clinical nursing experience in this population of nurses. Clearly, generalizability of these findings to nurses outside the US is questionable, thus nurse managers must be familiar

  19. Propagation Effects in Space/Earth Paths.

    Science.gov (United States)

    1980-08-01

    0 h In both integrals ds is a differential of curved ray path and includes refractive bending. In either integral, the factor aTar is, by the Rayleigh...interference. Ionospheric modification may also result from the emission of exhaust effluents from HLLV’s. The associated changes in ionospherio chemistry can

  20. Learning to improve path planning performance

    International Nuclear Information System (INIS)

    Chen, Pang C.

    1995-04-01

    In robotics, path planning refers to finding a short. collision-free path from an initial robot configuration to a desired configuratioin. It has to be fast to support real-time task-level robot programming. Unfortunately, current planning techniques are still too slow to be effective, as they often require several minutes, if not hours of computation. To remedy this situation, we present and analyze a learning algorithm that uses past experience to increase future performance. The algorithm relies on an existing path planner to provide solutions to difficult tasks. From these solutions, an evolving sparse network of useful robot configurations is learned to support faster planning. More generally, the algorithm provides a speedup-learning framework in which a slow but capable planner may be improved both cost-wise and capability-wise by a faster but less capable planner coupled with experience. The basic algorithm is suitable for stationary environments, and can be extended to accommodate changing environments with on-demand experience repair and object-attached experience abstraction. To analyze the algorithm, we characterize the situations in which the adaptive planner is useful, provide quantitative bounds to predict its behavior, and confirm our theoretical results with experiments in path planning of manipulators. Our algorithm and analysis are sufficiently, general that they may also be applied to other planning domains in which experience is useful

  1. Gender Differences in Career Paths in Banking.

    Science.gov (United States)

    Morgan, Sandra; And Others

    1993-01-01

    Analyzed career paths of middle managers in bank. Study of matched pairs found that men (n=25) advanced faster and reached middle management through fewer promotions and positions than did women (n=25). Men had significantly more work experience outside of banking. In banking careers, men held more jobs in lending, whereas women occupied more…

  2. Quad-rotor flight path energy optimization

    Science.gov (United States)

    Kemper, Edward

    Quad-Rotor unmanned areal vehicles (UAVs) have been a popular area of research and development in the last decade, especially with the advent of affordable microcontrollers like the MSP 430 and the Raspberry Pi. Path-Energy Optimization is an area that is well developed for linear systems. In this thesis, this idea of path-energy optimization is extended to the nonlinear model of the Quad-rotor UAV. The classical optimization technique is adapted to the nonlinear model that is derived for the problem at hand, coming up with a set of partial differential equations and boundary value conditions to solve these equations. Then, different techniques to implement energy optimization algorithms are tested using simulations in Python. First, a purely nonlinear approach is used. This method is shown to be computationally intensive, with no practical solution available in a reasonable amount of time. Second, heuristic techniques to minimize the energy of the flight path are tested, using Ziegler-Nichols' proportional integral derivative (PID) controller tuning technique. Finally, a brute force look-up table based PID controller is used. Simulation results of the heuristic method show that both reliable control of the system and path-energy optimization are achieved in a reasonable amount of time.

  3. Taking a Technological Path to Poetry Prewriting.

    Science.gov (United States)

    Roberts, Sherron Killingsworth

    2002-01-01

    Offers a strong rationale for the idea that the journey of writing good poetry begins on a path that infuses technology into the first stage of the writing process. Presents several ideas of ways to incorporate technology into the prewriting poetry experience. Concludes that by making technology an ingredient, the true potential for synergy…

  4. Unidirectional Motion of Vehicle on Sinusoidal Path

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 17; Issue 4. Unidirectional Motion of Vehicle on Sinusoidal Path: Can it Cause Illusory Forward and Backward Motion? Anuj Bhatnagar. Classroom Volume 17 Issue 4 April 2012 pp 387-392 ...

  5. Feynman path integral formulation of quantum mechanics

    International Nuclear Information System (INIS)

    Mizrahi, M.M.

    1975-01-01

    The subject of this investigation is Feynman's path integral quantization scheme, which is a powerful global formalism with great intuitive appeal. It stems from the simple idea that a probability amplitude for a system to make a transition between two states is the ''sum'' of the amplitudes for all the possible ways the transition can take place

  6. Path integral quantization of parametrized field theory

    International Nuclear Information System (INIS)

    Varadarajan, Madhavan

    2004-01-01

    Free scalar field theory on a flat spacetime can be cast into a generally covariant form known as parametrized field theory in which the action is a functional of the scalar field as well as the embedding variables which describe arbitrary, in general curved, foliations of the flat spacetime. We construct the path integral quantization of parametrized field theory in order to analyze issues at the interface of quantum field theory and general covariance in a path integral context. We show that the measure in the Lorentzian path integral is nontrivial and is the analog of the Fradkin-Vilkovisky measure for quantum gravity. We construct Euclidean functional integrals in the generally covariant setting of parametrized field theory using key ideas of Schleich and show that our constructions imply the existence of nonstandard 'Wick rotations' of the standard free scalar field two-point function. We develop a framework to study the problem of time through computations of scalar field two-point functions. We illustrate our ideas through explicit computation for a time independent (1+1)-dimensional foliation. Although the problem of time seems to be absent in this simple example, the general case is still open. We discuss our results in the contexts of the path integral formulation of quantum gravity and the canonical quantization of parametrized field theory

  7. Feature based omnidirectional sparse visual path following

    OpenAIRE

    Goedemé, Toon; Tuytelaars, Tinne; Van Gool, Luc; Vanacker, Gerolf; Nuttin, Marnix

    2005-01-01

    Goedemé T., Tuytelaars T., Van Gool L., Vanacker G., Nuttin M., ''Feature based omnidirectional sparse visual path following'', Proceedings IEEE/RSJ international conference on intelligent robots and systems - IROS2005, pp. 1003-1008, August 2-6, 2005, Edmonton, Alberta, Canada.

  8. Certified higher-order recursive path ordering

    NARCIS (Netherlands)

    Koprowski, A.; Pfenning, F.

    2006-01-01

    The paper reports on a formalization of a proof of wellfoundedness of the higher-order recursive path ordering (HORPO) in the proof checker Coq. The development is axiom-free and fully constructive. Three substantive parts that could be used also in other developments are the formalizations of the

  9. Path-breaking books in regional science

    NARCIS (Netherlands)

    Waldorf, BS

    This article presents a collection of regional science books that long-standing members of the Regional Science Association International (RSAI) identified as path-breaking books. The most frequently nominated books include the "classics" by Isard, the seminal books in urban economics by Alonso,

  10. Covariant path integrals on hyperbolic surfaces

    Science.gov (United States)

    Schaefer, Joe

    1997-11-01

    DeWitt's covariant formulation of path integration [B. De Witt, "Dynamical theory in curved spaces. I. A review of the classical and quantum action principles," Rev. Mod. Phys. 29, 377-397 (1957)] has two practical advantages over the traditional methods of "lattice approximations;" there is no ordering problem, and classical symmetries are manifestly preserved at the quantum level. Applying the spectral theorem for unbounded self-adjoint operators, we provide a rigorous proof of the convergence of certain path integrals on Riemann surfaces of constant curvature -1. The Pauli-DeWitt curvature correction term arises, as in DeWitt's work. Introducing a Fuchsian group Γ of the first kind, and a continuous, bounded, Γ-automorphic potential V, we obtain a Feynman-Kac formula for the automorphic Schrödinger equation on the Riemann surface ΓH. We analyze the Wick rotation and prove the strong convergence of the so-called Feynman maps [K. D. Elworthy, Path Integration on Manifolds, Mathematical Aspects of Superspace, edited by Seifert, Clarke, and Rosenblum (Reidel, Boston, 1983), pp. 47-90] on a dense set of states. Finally, we give a new proof of some results in C. Grosche and F. Steiner, "The path integral on the Poincare upper half plane and for Liouville quantum mechanics," Phys. Lett. A 123, 319-328 (1987).

  11. Directed paths in a layered environment

    International Nuclear Information System (INIS)

    Alvarez, J; Janse van Rensburg, E J

    2008-01-01

    A polymer in a layered environment is modeled as a directed path in a layered square lattice composed of alternating A-layers of width w a and B-layers of width w b . In this paper we consider general cases of this model, where edges in the path interact with the layers, and vertices in the path interact with interfaces between adjacent layers. The phase diagram exhibits different regimes. In particular, we found that the path may be localized to one layer, be adsorbed on an interface between two layers or be delocalized across layers. We examine special aspects of the model in detail: the asymptotic regimes of the models are examined, and entropic forces on the interfaces are determined. We focus on several different cases, including models with layers of equal or similar width. More general models of layers with different but finite widths, or with one layer of infinite width, are also examined in detail. Several of these models exhibit phase behavior which relate to well-studied polymer phase behavior such as adsorption at an impenetrable wall, pinning at an interface between two immiscible solvents, steric stabilization of colloidal particles and sensitized flocculation of colloidal particles by polymers

  12. Random paths with curvature dependent action

    International Nuclear Information System (INIS)

    Ambjoern, J.; Durhuus, B.

    1986-11-01

    We study discretized random paths with a curvature dependent action. The scaling limits of the corresponding statistical mechanical models can be constructed explicitly and are either usual Brownian motion or a theory where the correlations of tangents are nonzero and described by diffusion on the unit sphere. In the latter case the two point function has an anomalous dimension η = 1. (orig.)

  13. Comparison of classical reaction paths and tunneling paths studied with the semiclassical instanton theory.

    Science.gov (United States)

    Meisner, Jan; Markmeyer, Max N; Bohner, Matthias U; Kästner, Johannes

    2017-08-30

    Atom tunneling in the hydrogen atom transfer reaction of the 2,4,6-tri-tert-butylphenyl radical to 3,5-di-tert-butylneophyl, which has a short but strongly curved reaction path, was investigated using instanton theory. We found the tunneling path to deviate qualitatively from the classical intrinsic reaction coordinate, the steepest-descent path in mass-weighted Cartesian coordinates. To perform that comparison, we implemented a new variant of the predictor-corrector algorithm for the calculation of the intrinsic reaction coordinate. We used the reaction force analysis method as a means to decompose the reaction barrier into structural and electronic components. Due to the narrow energy barrier, atom tunneling is important in the abovementioned reaction, even above room temperature. Our calculated rate constants between 350 K and 100 K agree well with experimental values. We found a H/D kinetic isotope effect of almost 10 6 at 100 K. Tunneling dominates the protium transfer below 400 K and the deuterium transfer below 300 K. We compared the lengths of the tunneling path and the classical path for the hydrogen atom transfer in the reaction HCl + Cl and quantified the corner cutting in this reaction. At low temperature, the tunneling path is about 40% shorter than the classical path.

  14. Rural nurse job satisfaction.

    Science.gov (United States)

    Molinari, D L; Monserud, M A

    2008-01-01

    The lack of rural nursing studies makes it impossible to know whether rural and urban nurses perceive personal and organizational factors of job satisfaction similarly. Few reports of rural nurse job satisfaction are available. Since the unprecedented shortage of qualified rural nurses requires a greater understanding of what factors are important to retention, studies are needed. An analysis of the literature indicates job satisfaction is studied as both an independent and dependent variable. In this study, the concept is used to examine the intention to remain employed by measuring individual and organizational characteristics; thus, job satisfaction is used as a dependent variable. One hundred and three rural hospital nurses, from hospitals throughout the Northwest region of the United States were recruited for the study. Only nurses employed for more than one year were accepted. The sample completed surveys online. The McCloskey/Mueller Satisfaction Scale, the Gerber Control Over Practice Scale, and two open-ended job satisfaction questions were completed. The qualitative analysis of the open-ended questions identified themes which were then used to support the quantitative findings. Overall alphas were 0.89 for the McCloskey/Mueller Scale and 0.96 for the Gerber Control Over Practice Scale. Rural nurses indicate a preference for rural lifestyles and the incorporation of rural values in organizational practices. Nurses preferred the generalist role with its job variability, and patient variety. Most participants intended to remain employed. The majority of nurses planning to leave employment were unmarried, without children at home, and stated no preference for a rural lifestyle. The least overall satisfied nurses in the sample were employed from 1 to 3 years. Several new findings inform the literature while others support previous workforce studies. Data suggest some job satisfaction elements can be altered by addressing organizational characteristics and by

  15. Nurse Burnout and Patient Satisfaction

    Science.gov (United States)

    Vahey, Doris C.; Aiken, Linda H.; Sloane, Douglas M.; Clarke, Sean P.; Vargas, Delfino

    2010-01-01

    Background Amid a national nurse shortage, there is growing concern that high levels of nurse burnout could adversely affect patient outcomes. Objectives This study examines the effect of the nurse work environment on nurse burnout, and the effects of the nurse work environment and nurse burnout on patients' satisfaction with their nursing care. Research Design/Subjects We conducted cross-sectional surveys of nurses (N = 820) and patients (N = 621) from 40 units in 20 urban hospitals across the United States. Measures Nurse surveys included measures of nurses' practice environments derived from the revised Nursing Work Index (NWI-R) and nurse outcomes measured by the Maslach Burnout Inventory (MBI) and intentions to leave. Patients were interviewed about their satisfaction with nursing care using the La Monica-Oberst Patient Satisfaction Scale (LOPSS). Results Patients cared for on units that nurses characterized as having adequate staff, good administrative support for nursing care, and good relations between doctors and nurses were more than twice likely as other patients to report high satisfaction with their care, and their nurses reported significantly lower burnout. The overall level of nurse burnout on hospital units also affected patient satisfaction. Conclusions Improvements in nurses' work environments in hospitals have the potential to simultaneously reduce nurses' high levels of job burnout and risk of turnover and increase patients' satisfaction with their care. PMID:14734943

  16. Nurse Reinvestment Act. Public Law.

    Science.gov (United States)

    Congress of the U.S., Washington, DC.

    This document contains the text of the Nurse Reinvestment Act, which amends the Public Health Service Act to address the increasing shortage of registered nurses by instituting a series of policies to improve nurse recruitment and nurse retention. Title I details two initiatives to boost recruitment of nurses. The first initiative includes the…

  17. Academic Incivility in Nursing Education

    Science.gov (United States)

    Marlow, Sherri

    2013-01-01

    A well-documented and growing problem impacting the nursing shortage in the United States is the increasing shortage of qualified nursing faculty. Many factors contribute to the nursing faculty shortage such as retirement, dissatisfaction with the nursing faculty role and low salary compensation (American Association of Colleges of Nursing (AACN),…

  18. Promotion or marketing of the nursing profession by nurses.

    Science.gov (United States)

    Kagan, I; Biran, E; Telem, L; Steinovitz, N; Alboer, D; Ovadia, K L; Melnikov, S

    2015-09-01

    In recent years, much effort has been invested all over the world in nurse recruitment and retention. Issues arising in this context are low job satisfaction, the poor public image of nursing and the reluctance of nurses to promote or market their profession. This study aimed to examine factors explaining the marketing of the nursing profession by nurses working at a general tertiary medical centre in Israel. One hundred sixty-nine registered nurses and midwives from five clinical care units completed a structured self-administered questionnaire, measuring (a) professional self-image, (b) job satisfaction, (c) nursing promotional and marketing activity questionnaire, and (d) demographic data. The mean scores for the promotion of nursing were low. Nurses working in an intensive cardiac care unit demonstrated higher levels of promotional behaviour than nurses from other nursing wards in our study. Nurse managers reported higher levels of nursing promotion activity compared with first-line staff nurses. There was a strong significant correlation between job satisfaction and marketing behaviour. Multiple regression analysis shows that 15% of the variance of promoting the nursing profession was explained by job satisfaction and job position. Nurses are not inclined to promote or market their profession to the public or to other professions. The policy on the marketing of nursing is inadequate. A three-level (individual, organizational and national) nursing marketing programme is proposed for implementation by nurse leadership and policy makers. Among proposed steps to improve marketing of the nursing profession are promotion of the image of nursing by the individual nurse in the course of her or his daily activities, formulation and implementation of policies and programmes to promote the image of nursing at the organizational level and drawing up of a long-term programme for promoting or marketing the professional status of nursing at the national level. © 2015

  19. Professional excellence and career advancement in nursing: a conceptual framework for clinical leadership development.

    Science.gov (United States)

    Adeniran, Rita Kudirat; Bhattacharya, Anand; Adeniran, Anthony A

    2012-01-01

    Increasingly, stakeholders in the health care community are recognizing nursing as key to solving the nation's health care issues. This acknowledgment provides a unique opportunity for nursing to demonstrate leadership by developing clinical nurse leaders to collaborate with the multidisciplinary care team in driving evidence-based, safe quality, cost-effective health care services. One approach for nursing success is standardizing the entry-level education for nurses and developing a uniform professional development and career advancement trajectory with appropriate incentives to encourage participation. A framework to guide and provide scientific evidence of how frontline nurses can be engaged will be paramount. The model for professional excellence and career advancement provides a framework that offers a clear path for researchers to examine variables influencing nurses' professional development and career advancement in a systematic manner. Professional Excellence and Career Advancement in Nursing underscores professional preparedness of a registered nurse as central to leadership development. It also describes the elements that influence nurses' participation in professional development and career advancement under 4 main categories emphasizing mentorship and self-efficacy as essential variables.

  20. The role of support antecedents in nurses' intentions to quit: the case of Australia.

    Science.gov (United States)

    Shacklock, Kate; Brunetto, Yvonne; Teo, Stephen; Farr-Wharton, Rod

    2014-04-01

    The study used Social Exchange Theory as a lens to examine associations between nurses' support antecedents (supervisor-nurse relationships and perceived organizational support) and their job attitudes (job satisfaction, organizational commitment and engagement). Similar to many other westernized countries, there is a shortage of nurses working as nurses in Australia. The attrition of nurses from the workplace continues to be a challenge for many countries, with resultant calls for improved retention rates. The design employed in this study was a Survey. A self-report survey of 1600 nurses employed in five private sector hospitals throughout Australia was completed during 2010-2011, resulting in 510 completed surveys. A mediation path model was developed to test the hypotheses and results of Partial Least Squares analysis showed that both support antecedents (supervisor-nurse relationships and perceived organizational support) positively led to engagement and job satisfaction. Subsequently, nurses more satisfied with their jobs were also more committed to their organizations, ultimately leading to lower intentions to quit. In addition, job satisfaction was found to mediate the relationships between organizational commitment and turnover intentions, plus between supervisor-subordinate relationships and turnover intentions. In the context of a shortage of nurses and higher than average turnover rates, the findings suggest that it is important to improve nurses' job satisfaction and organizational commitment to improve retention. However, the findings also suggest that workplace relationships and organizational management are currently far from ideal. © 2013 John Wiley & Sons Ltd.

  1. RETAINING PROFESSIONAL NURSES IN SOUTH AFRICA: NURSE ...

    African Journals Online (AJOL)

    2010-11-03

    Nov 3, 2010 ... were vacant throughout South Africa (Health Systems Trust 2008). The provinces with the highest ... monetary rewards), the manager or supervisor (enhancing ... theory is one of nurse retention and not motivation. The shape.

  2. Nursing Supervisors Perception on quality of Nursing Care in Ethiopia

    African Journals Online (AJOL)

    Afcor Jupitor

    conditions, their methods of work, selection and ... nursing; low pay for hard work; poor, often unsafe .... 115. Table 1. Perceived Image of Nursing as a Field for Women and Men, Jimma, June- .... stereotyping, nursing is the most severely.

  3. Surgical nurse: his leadership style with nursing auxiliary personnel

    OpenAIRE

    Galvão, Cristina Maria; Trevizan, Maria Auxiliadora; Okino Sawada, Namie

    2008-01-01

    This investigation as carried out in order to promote follow-up in the studies concerning nurse`s leadership in the hospital context. Emphasys is given to the nurses that works in surgical ward unities. As a theoretical framework, authors utilized the model of leadership proposed by Hersey na Blanchard, named Situational Leadership. The objective was to analyze the correspondence of opinion between nurses and nursing auxiliary personnel about the leadership style of nurse should adopt in acco...

  4. Using appreciative inquiry to transform student nurses' image of nursing.

    Science.gov (United States)

    Chauke, Motshedisi E; Van Der Wal, Dirk; Botha, Annalie

    2015-08-19

    Literature provides adequate evidence of a poor perception of nursing within the profession, resulting in high rates of attrition of student nurses and newly qualified nurses. The nursing profession, in particular nurse educators, has an ethical and professional responsibility to find innovative strategies to promote the positive image of nursing amongst student nurses. The purpose of the study was to explore the potential of appreciative inquiry (AI) as an intervention teaching strategy to transform student nurses' image of nursing. A quantitative, quasi-experimental, explorative-descriptive design comprising the pretest, appreciative inquiry as intervention, and the post-test was used. Convenience sampling was used to select third and fourth year college and university student nurses in the Gauteng province of South Africa for the pre- and the post-test respectively. Data were collected by means of a questionnaire and analysed by SPSS version 20.0. The pretest results revealed a mix of positive and negative perceptions of the image of nursing amongst student nurses. The negative perceptions of the image of nursing that needed intervention included the working conditions of nurses, and the perception of nursing as a profession that was not respected and appreciated. The post-test results showed a significant and positive change in the student nurses' perception of the image of nursing as a respected and appreciated profession. Although AI resulted in a negative to positive change in some aspects of student nurses' image of nursing, the negative perceptions of the working conditions of nurses remained and became more negative. The positive image of gender in nursing was enhanced following the implementation of AI. Appreciative inquiry demonstrated potential as a teaching strategy to produce a positive nursing image change and positive orientation towards nursing amongst student nurses.

  5. Competency of Graduate Nurses as Perceived by Nurse Preceptors and Nurse Managers

    Science.gov (United States)

    Wise, Vanessa

    2013-01-01

    As newly graduated associate degree nurses (ADN) and baccalaureate degree nurses (BSN) enter into the workforce, they must be equipped to care for a complex patient population; therefore, the purpose of this study was to address the practice expectations and clinical competency of new nurses as perceived by nurse preceptors and nurse managers.…

  6. Casemix and nursing.

    Science.gov (United States)

    Diers, D

    1999-01-01

    The American Nurses' Association did not embrace the introduction of diagnosis related groups, believing they would not recognise nursing activity nor acuity and would bring about the economic demise of nursing. Australian nurses, by contrast, recognised the window of opportunity that the work towards Australian national diagnosis related groups and funding mechanisms provided to move nursing resources into the political and policy mainstream. This paper reviews the American and Australian nursing experience with casemix, acuity and cost weighting. It uses examples from more recent work to argue for the use of casemix information in new ways, for 'process improvement' or 'evidence-based management'. The paper concludes that the next great leap forward in casemix may require attention to building the information and human infrastructures, so that the valuable clinical-financial information produced by casemix-based information systems can truly inform management and policy.

  7. Path Integrals and Anomalies in Curved Space

    International Nuclear Information System (INIS)

    Louko, Jorma

    2007-01-01

    Bastianelli and van Nieuwenhuizen's monograph 'Path Integrals and Anomalies in Curved Space' collects in one volume the results of the authors' 15-year research programme on anomalies that arise in Feynman diagrams of quantum field theories on curved manifolds. The programme was spurred by the path-integral techniques introduced in Alvarez-Gaume and Witten's renowned 1983 paper on gravitational anomalies which, together with the anomaly cancellation paper by Green and Schwarz, led to the string theory explosion of the 1980s. The authors have produced a tour de force, giving a comprehensive and pedagogical exposition of material that is central to current research. The first part of the book develops from scratch a formalism for defining and evaluating quantum mechanical path integrals in nonlinear sigma models, using time slicing regularization, mode regularization and dimensional regularization. The second part applies this formalism to quantum fields of spin 0, 1/2, 1 and 3/2 and to self-dual antisymmetric tensor fields. The book concludes with a discussion of gravitational anomalies in 10-dimensional supergravities, for both classical and exceptional gauge groups. The target audience is researchers and graduate students in curved spacetime quantum field theory and string theory, and the aims, style and pedagogical level have been chosen with this audience in mind. Path integrals are treated as calculational tools, and the notation and terminology are throughout tailored to calculational convenience, rather than to mathematical rigour. The style is closer to that of an exceedingly thorough and self-contained review article than to that of a textbook. As the authors mention, the first part of the book can be used as an introduction to path integrals in quantum mechanics, although in a classroom setting perhaps more likely as supplementary reading than a primary class text. Readers outside the core audience, including this reviewer, will gain from the book a

  8. Developing renal nurses' buttonhole cannulation skills using e-learning.

    Science.gov (United States)

    Blackman, Ian R; Mannix, Trudi; Sinclair, Peter M

    2014-03-01

    It has previously been shown that nurses can learn clinical nursing skills by e-learning (online), and that many variables will influence how well nurses adopt learned clinical skills using distance education. This study aimed to identify and measure the strength of those factors which would simultaneously influence registered nurses' (RNs') beliefs about their own learning about buttonhole cannulation, using e-learning. An online Likert style survey consisting of a list of statements related to knowledge and skill domains considered crucial in the area of buttonhole cannulation was distributed to 101 RNs before and after completing an e-learning programme. Participants were required to identify their current level of self-confidence in relationship to each of the statements. Measures of RNs' self-rated abilities to assess and implement buttonhole cannulation after completing a related e-learning program were tested using a Partial Least Squares Analysis (PLS-PATH) programme. The study's results strongly identify that the nurses' ability to meet both clinical and educational outcomes of the renal e-learning module can be predicted by six variables, none of which are directly related to the participants' demographic or clinical backgrounds. These findings support the use of e-learning to teach clinical skills to RNs, and demonstrate the value of Partial Least Squares Analysis in determining influential learning factors. © 2014 European Dialysis and Transplant Nurses Association/European Renal Care Association.

  9. Nurses' beliefs about nursing diagnosis: A study with cluster analysis.

    Science.gov (United States)

    D'Agostino, Fabio; Pancani, Luca; Romero-Sánchez, José Manuel; Lumillo-Gutierrez, Iris; Paloma-Castro, Olga; Vellone, Ercole; Alvaro, Rosaria

    2018-06-01

    To identify clusters of nurses in relation to their beliefs about nursing diagnosis among two populations (Italian and Spanish); to investigate differences among clusters of nurses in each population considering the nurses' socio-demographic data, attitudes towards nursing diagnosis, intentions to make nursing diagnosis and actual behaviours in making nursing diagnosis. Nurses' beliefs concerning nursing diagnosis can influence its use in practice but this is still unclear. A cross-sectional design. A convenience sample of nurses in Italy and Spain was enrolled. Data were collected between 2014-2015 using tools, that is, a socio-demographic questionnaire and behavioural, normative and control beliefs, attitudes, intentions and behaviours scales. The sample included 499 nurses (272 Italians & 227 Spanish). Of these, 66.5% of the Italian and 90.7% of the Spanish sample were female. The mean age was 36.5 and 45.2 years old in the Italian and Spanish sample respectively. Six clusters of nurses were identified in Spain and four in Italy. Three clusters were similar among the two populations. Similar significant associations between age, years of work, attitudes towards nursing diagnosis, intentions to make nursing diagnosis and behaviours in making nursing diagnosis and cluster membership in each population were identified. Belief profiles identified unique subsets of nurses that have distinct characteristics. Categorizing nurses by belief patterns may help administrators and educators to tailor interventions aimed at improving nursing diagnosis use in practice. © 2018 John Wiley & Sons Ltd.

  10. Nurse retention and satisfaction in Ecuador: implications for nursing administration.

    Science.gov (United States)

    Palmer, Sheri P

    2014-01-01

    This study explores the characteristics of professional nursing work environments that may affect nursing turnover and satisfaction within a large Ecuadorian hospital. Nursing turnover is a challenge and may compromise patient care. Work dissatisfaction contributes to high turnover. Improving nurse satisfaction can contribute to better patient outcomes. Eighty-eight nurses participated in a quantitative and qualitative survey focusing on nursing satisfaction, turnover and selected organisation characteristics. Issues that may affect nurse satisfaction and turnover were identified using questions from the Nursing Work Index: pay, insufficient number of nurses, undervaluing of nurses by public and the medical team, limited advancement opportunities, lack of autonomy and inflexibility in schedule. Other themes identified from qualitative data are reported. The top factor of decreased satisfaction was low pay as indicated by the Nursing Work Index. The qualitative results showed that low pay was the factor for nurse turnover. Additional factors related to nursing satisfaction can be addressed to improve nurse retention. Along with increasing nursing pay, strategies to consider in decreasing turnover and increasing satisfaction included: providing opportunities for nursing advancement, promoting the value of nursing, creating clinical protocols and enhancing autonomy. This study adds to knowledge about nursing needs and satisfaction in South America. © 2013 John Wiley & Sons Ltd.

  11. Ethics and Transcultural Nursing Care.

    Science.gov (United States)

    Eliason, Michele J.

    1993-01-01

    Argues that nursing practice and theory cannot be ethical unless cultural factors are taken into consideration and that ethical/transcultural nursing is central to the philosophy and practice of nursing. (Author)

  12. Working with doctors and nurses

    Science.gov (United States)

    ... with doctors and nurses Working with doctors and nurses Answering questions, filling out papers, getting poked and ... to pay? What questions will the doctor or nurse ask? top It’s a good idea to know ...

  13. Moments of inertia and the shapes of Brownian paths

    International Nuclear Information System (INIS)

    Fougere, F.; Desbois, J.

    1993-01-01

    The joint probability law of the principal moments of inertia of Brownian paths (open or closed) is computed, using constrained path integrals and Random Matrix Theory. The case of two-dimensional paths is discussed in detail. In particular, it is shown that the ratio of the average values of the largest and smallest moments is equal to 4.99 (open paths) and 3.07 (closed paths). Results of numerical simulations are also presented, which include investigation of the relationships between the moments of inertia and the arithmetic area enclosed by a path. (authors) 28 refs., 2 figs

  14. How to solve path integrals in quantum mechanics

    International Nuclear Information System (INIS)

    Grosche, C.

    1994-10-01

    A systematic classification of Feynman path integrals in quantum mechanics is presented and a table of solvable path integrals is given which reflects the progress made during the last 15 years, including, of course, the main contributions since the invention of the path integral by Feynman in 1942. An outline of the general theory is given which will serve as a quick reference for solving path integrals. Explicit formulae for the so-called basic path integrals are presented on which our general scheme to classify and calculate path integrals in quantum mechanics is based. (orig.)

  15. Films and nursing education

    Directory of Open Access Journals (Sweden)

    María GABRIELA FELIPPA

    2016-01-01

    Full Text Available The purpose of this paper is to provide some ideas about the importance of film, with it’s audiovisual narrative, in the nursing education. The use of films during teaching gives the posibility to increase the construction of a professional view.The nursing carreer of Isalud University of Argentina is founded a sistematic work with cinematographic support. In this case are presented different ways of work with cinematographic support in a curricular space of Fundamentals of Nursing of the career of a professional Nurse of the Isalud University.

  16. Nursing and spirituality

    Directory of Open Access Journals (Sweden)

    Raphael de Brito Pedrão

    2010-03-01

    Full Text Available Objectives: To evaluate the spiritual well-being of nurses; to appraise their opinions as to the importance of offering patients spiritual assistance, and to verify whether nurses received any specific type of preparation during their professional training for giving spiritual assistance to patients. Methods: This is an exploratory and descriptive study, carried out with a sample of 30 nurses who worked at the Stepdown Unit and Oncology Unit of Hospital Israelita Albert Einstein, using the application of the Spiritual Well-Being Scale (SWS and a questionnaire prepared by the authors. Results: On the Spiritual Well-Being Scale, 76.6% of nurses produced positive scores. On the Existential Well-Being subscale, 80% had positive scores, and on the Religious Well-Being subscale, 76.6% had positive scores. On the SWBS, the general average score was 107.26, and for the Existential and Religious ones, the average scores were 54.4 and 53.2, respectively. Most nurses responded affirmatively as to the importance of offering patients spiritual assistance, and 40% of nurses offered as rationale “to provide well-being and comfort to the patient”. Most nurses reported not having received professional training for giving spiritual assistance to patients in any of the nursing courses they had done. Conclusions: The results indicate the need for professional training and/or continued education courses in nursing to extend the reflection and discussion on spirituality and spiritual assistance to patients.

  17. [Nurses' professional satisfaction].

    Science.gov (United States)

    Del Cura, M L; Rodrigues, A R

    1999-10-01

    We carried out a study with 91 nurses, trying to find out about the feelings of these professionals regarding their satisfaction at work. We used the Work Satisfaction Assessment Questionnaire (WSAQ), drawn up and validated by Siqueira (1978) and adapted with the analysis of seven factors: General Satisfaction; Physical and Psychological Stress; "Status" of the Job; Location of the Company; Compensating Benefits; Recognition and Personal Development. Data showed nurses satisfied with their work, in its intrinsic aspects (Accomplishment, Recognition and Autonomy). The psychiatric nurses were the most mature, most experienced, showing a higher satisfaction level, whereas the pediatric nurses were the youngest, most inexperienced and presenting the highest level of dissatisfaction at work.

  18. Epidemic extinction paths in complex networks

    Science.gov (United States)

    Hindes, Jason; Schwartz, Ira B.

    2017-05-01

    We study the extinction of long-lived epidemics on finite complex networks induced by intrinsic noise. Applying analytical techniques to the stochastic susceptible-infected-susceptible model, we predict the distribution of large fluctuations, the most probable or optimal path through a network that leads to a disease-free state from an endemic state, and the average extinction time in general configurations. Our predictions agree with Monte Carlo simulations on several networks, including synthetic weighted and degree-distributed networks with degree correlations, and an empirical high school contact network. In addition, our approach quantifies characteristic scaling patterns for the optimal path and distribution of large fluctuations, both near and away from the epidemic threshold, in networks with heterogeneous eigenvector centrality and degree distributions.

  19. Technological opportunities and paths of development

    DEFF Research Database (Denmark)

    Plichta, Kirsten

    1993-01-01

    the outcome of different firms development effort may also help shape a path at the industry level. This may be because the criteria by which the market selects between the different product may to some extent be anticipated by the developing firms or because the criteria by which the market select betwee...... technological knowledge, their production, development and other routines as well prior investments in products and production equipment play an important role with regard to the technological opportunities that firms' identify and select for development. 3) Because history matters and because firms are bounded...... in the industry. 6) It is argued that such paths of incremental improvement at the industry level may be an outcome of a) the dynamics that produce the technological opportunities; b) the institutions that govern decisions and expectations and c) the criteria by which the chooses between different firms...

  20. Path integral quantization in the temporal gauge

    International Nuclear Information System (INIS)

    Scholz, B.; Steiner, F.

    1983-06-01

    The quantization of non-Abelian gauge theories in the temporal gauge is studied within Feynman's path integral approach. The standard asymptotic boundary conditions are only imposed on the transverse gauge fields. The fictituous longitudinal gauge quanta are eliminated asymptotically by modified boundary conditions. This abolishes the residual time-independent gauge transformations and leads to a unique fixing of the temporal gauge. The resulting path integral for the generating functional respects automatically Gauss's law. The correct gauge field propagator is derived. It does not suffer from gauge singularities at n x k = 0 present in the usual treatment of axial gauges. The standard principal value prescription does not work. As a check, the Wilson loop in temporal gauge is calculated with the new propagator. To second order (and to all orders in the Abelian case) the result agrees with the one obtained in the Feynman and Coulomb gauge. (orig.)

  1. Dynamic Path Exploration on Mobile Devices

    KAUST Repository

    Birsak, Michael

    2017-03-31

    We present a novel framework for visualizing routes on mobile devices. Our framework is suitable for helping users explore their environment. First, given a starting point and a maximum route length, the system retrieves nearby points of interest (POIs). Second, we automatically compute an attractive walking path through the environment trying to pass by as many highly ranked POIs as possible. Third, we automatically compute a route visualization that shows the current user position, POI locations via pins, and detail lenses for more information about the POIs. The visualization is an animation of an orthographic map view that follows the current user position. We propose an optimization based on a binary integer program (BIP) that models multiple requirements for an effective placement of detail lenses. We show that our path computation method outperforms recently proposed methods and we evaluate the overall impact of our framework in two user studies.

  2. Path creation in the software industry

    DEFF Research Database (Denmark)

    Leimbach, Timo

    2017-01-01

    The article analyzes the development of the German software company Software AG, which was among the few European companies that succeeded in the US market already in the 1970s. Utilizing the concept of "path creation" it examines how early success impacted the development of the company. It shows...... that at least two paths in the development, the focus on the ADABAS product ecosystem and the underlying technology as well as the strong internationalization, relate to the early success and influenced the further evolution of it. The analyses reveal that they played an important role in how the company...... reacted on the rise of relational databases and the vertical disintegration of the computer industry. As a consequence of the late adoption of them they company got into troubles and needed adjust their profile and orientation during the 1990s and early 2000s, which is analyzed in the final part...

  3. Solidification paths of multicomponent monotectic aluminum alloys

    Energy Technology Data Exchange (ETDEWEB)

    Mirkovic, Djordje; Groebner, Joachim [Clausthal University of Technology, Institute of Metallurgy, Robert-Koch-Street 42, D-38678 Clausthal-Zellerfeld (Germany); Schmid-Fetzer, Rainer [Clausthal University of Technology, Institute of Metallurgy, Robert-Koch-Street 42, D-38678 Clausthal-Zellerfeld (Germany)], E-mail: schmid-fetzer@tu-clausthal.de

    2008-10-15

    Solidification paths of three ternary monotectic alloy systems, Al-Bi-Zn, Al-Sn-Cu and Al-Bi-Cu, are studied using thermodynamic calculations, both for the pertinent phase diagrams and also for specific details concerning the solidification of selected alloy compositions. The coupled composition variation in two different liquids is quantitatively given. Various ternary monotectic four-phase reactions are encountered during solidification, as opposed to the simple binary monotectic, L' {yields} L'' + solid. These intricacies are reflected in the solidification microstructures, as demonstrated for these three aluminum alloy systems, selected in view of their distinctive features. This examination of solidification paths and microstructure formation may be relevant for advanced solidification processing of multicomponent monotectic alloys.

  4. An alternative path integral for quantum gravity

    Energy Technology Data Exchange (ETDEWEB)

    Krishnan, Chethan; Kumar, K.V. Pavan; Raju, Avinash [Center for High Energy Physics, Indian Institute of Science,Bangalore 560012 (India)

    2016-10-10

    We define a (semi-classical) path integral for gravity with Neumann boundary conditions in D dimensions, and show how to relate this new partition function to the usual picture of Euclidean quantum gravity. We also write down the action in ADM Hamiltonian formulation and use it to reproduce the entropy of black holes and cosmological horizons. A comparison between the (background-subtracted) covariant and Hamiltonian ways of semi-classically evaluating this path integral in flat space reproduces the generalized Smarr formula and the first law. This “Neumann ensemble” perspective on gravitational thermodynamics is parallel to the canonical (Dirichlet) ensemble of Gibbons-Hawking and the microcanonical approach of Brown-York.

  5. Secure Path Selection under Random Fading

    Directory of Open Access Journals (Sweden)

    Furqan Jameel

    2017-05-01

    Full Text Available Application-oriented Wireless Sensor Networks (WSNs promises to be one of the most useful technologies of this century. However, secure communication between nodes in WSNs is still an unresolved issue. In this context, we propose two protocols (i.e. Optimal Secure Path (OSP and Sub-optimal Secure Path (SSP to minimize the outage probability of secrecy capacity in the presence of multiple eavesdroppers. We consider dissimilar fading at the main and wiretap link and provide detailed evaluation of the impact of Nakagami-m and Rician-K factors on the secrecy performance of WSNs. Extensive simulations are performed to validate our findings. Although the optimal scheme ensures more security, yet the sub-optimal scheme proves to be a more practical approach to secure wireless links.

  6. Rapidly converging path integral formalism. Pt. 1

    International Nuclear Information System (INIS)

    Bender, I.; Gromes, D.; Marquard, U.

    1990-01-01

    The action to be used in the path integral formalism is expanded in a systematic way in powers of the time spacing ε in order to optimize the convergence to the continuum limit. This modifies and extends the usual formalism in a transparent way. The path integral approximation to the Green function obtained by this method approaches the continuum Green function with a higher power of ε than the usual one. The general theoretical derivations are exemplified analytically for the harmonic oscillator and by Monte Carlo methods for the anharmonic oscillator. We also show how curvilinear coordinates and curved spaces can naturally be treated within this formalism. Work on field theory is in progress. (orig.)

  7. Nurses' comfort with touch and workplace well-being.

    Science.gov (United States)

    Pedrazza, Monica; Minuzzo, Stefania; Berlanda, Sabrina; Trifiletti, Elena

    2015-06-01

    Touch is an essential part of caregiving and has been proved to be useful to reduce pain. Nevertheless, little attention has been paid to nurses' perceptions of touch. The aim of this article was to examine the relationship between nurses' feelings of comfort with touch and their well-being at work. A sample of 241 nurses attending a pain management training course completed a questionnaire, including the following measures: Comfort with Touch (CT) scale (task-oriented contact, touch promoting physical comfort, touch providing emotional containment), Maslach Burnout Inventory (MBI; emotional exhaustion, cynicism), and Job Satisfaction. Results of structural equation models showed that touch providing emotional containment was the main predictor of emotional exhaustion. Emotional exhaustion, in turn, was positively related to cynicism and negatively related to job satisfaction. In addition, the direct path from touch providing emotional containment to cynicism was significant. Practical implications of the findings are discussed. © The Author(s) 2014.

  8. Evidence-based policy: implications for nursing and policy involvement.

    Science.gov (United States)

    Hewison, Alistair

    2008-11-01

    Evidence-based policy making is espoused as a central feature of government in the United Kingdom. However, an expectation that this will improve the quality of policy produced and provide a path to increased involvement of nurses in the policy process is misplaced. The purpose of this article is to demonstrate that the emphasis on evidence-based policy is problematic and cannot be regarded as a "new model" of policy making. Also, it could deflect attention from more practical approaches to policy involvement on the part of nurses. Policy development activities, acquisition of skills in policy analysis, and other forms of involvement are needed if nurses are to move along the continuum from policy literacy, through policy acumen, to policy competence. This involves taking a critical stance on the notion of evidence-based policy.

  9. The influence of leadership practices and empowerment on Canadian nurse manager outcomes.

    Science.gov (United States)

    Spence Laschinger, Heather K; Wong, Carol A; Grau, Ashley L; Read, Emily A; Pineau Stam, Lisa M

    2012-10-01

    To examine the influence of senior nurse leadership practices on middle and first-line nurse managers' experiences of empowerment and organizational support and ultimately on their perceptions of patient care quality and turnover intentions. Empowering leadership has played an important role in staff nurse retention but there is limited research to explain the mechanisms by which leadership influences nurse managers' turnover intentions. This study was a secondary analysis of data collected using non-experimental, predictive mailed survey design. Data from 231 middle and 788 first-line Canadian acute care managers was used to test the hypothesized model using path analysis in each group. The results showed an adequate fit of the hypothesized model in both groups but with an added path between leadership practices and support in the middle line group. Transformational leadership practices of senior nurses empower middle- and first-line nurse managers, leading to increased perceptions of organizational support, quality care and decreased intent to leave. Empowered nurse managers at all levels who feel supported by their organizations are more likely to stay in their roles, remain committed to achieving quality patient care and act as influential role models for potential future leaders. © 2011 Blackwell Publishing Ltd.

  10. Spreading paths in partially observed social networks

    OpenAIRE

    Onnela, Jukka-Pekka; Christakis, Nicholas A.

    2012-01-01

    Understanding how and how far information, behaviors, or pathogens spread in social networks is an important problem, having implications for both predicting the size of epidemics, as well as for planning effective interventions. There are, however, two main challenges for inferring spreading paths in real-world networks. One is the practical difficulty of observing a dynamic process on a network, and the other is the typical constraint of only partially observing a network. Using a static, s...

  11. Anomaly extraction from the path integral

    International Nuclear Information System (INIS)

    Christos, G.A.

    1983-01-01

    Fujikawa's recently proposed derivation of the anomaly from the path integral is examined. It is attempted to give a better understanding of his work. In particular, evasions of his result are discussed; for example it is shown how chiral U(1) axial invariance can be maintained by employing a gauge variant regularization prescription. A brief connection with the point-splitting method is also made. (orig.)

  12. On path hypercompositions in graphs and automata

    Directory of Open Access Journals (Sweden)

    Massouros Christos G.

    2016-01-01

    Full Text Available The paths in graphs define hypercompositions in the set of their vertices and therefore it is feasible to associate hypercompositional structures to each graph. Similarly, the strings of letters from their alphabet, define hypercompositions in the automata, which in turn define the associated hypergroups to the automata. The study of the associated hypercompositional structures gives results in both, graphs and automata theory.

  13. Depolarization on Earth-space paths

    Science.gov (United States)

    1981-01-01

    Sources of depolarization effects on the propagation paths of orthogonally-polarized information channels are considered. The main sources of depolarization at millimeter wave frequencies are hydrometeor absorption and scattering in the troposphere. Terms are defined. Mathematical formulations for the effects of the propagation medium characteristics and antenna performance on signals in dual polarization Earth-space links are presented. Techniques for modeling rain and ice depolarization are discussed.

  14. Path integral measure for gravitational interactions

    Directory of Open Access Journals (Sweden)

    Kazuo Fujikawa

    1983-10-01

    Full Text Available It is pointed out that the path-integral variables as well as the local measure for gravitational interactions are uniquely specified if one imposes the anomaly-free condition on the Becchi-Rouet-Stora supersymmetry associated with general coordinate transformations. This prescription is briefly illustrated for the Einstein gravity and supergravity in four space-time dimensions and the relativistic string theory in two dimensions.

  15. Path dependence and independent utility regulation

    DEFF Research Database (Denmark)

    Ibsen, Christian Lyhne; Skovgaard Poulsen, Lauge

    2007-01-01

    The establishment of the Danish independent regulatory authorities for the energy and telecommunications sectors was based upon EU directives as part of their liberalisation process. Following the concepts of transaction costs and path dependency this article analyses differences in independence...... between the two authorities - the Danish Energy Regulatory Authority (Energitilsynet) and the National IT and Telecommunications Agency (IT- og Telestyrelsen) respectively. We find that the state's negligible interest in the energy sector until the 1970s formed the basis for strong energy companies...

  16. Mindfulness as a Path of Women's Empowerment

    OpenAIRE

    Nadja FURLAN ŠTANTE

    2016-01-01

    The paper brings together social mindfulness as a path of empowerment for women within its concept of the interrelatedness of all beings in the web of life. The paradigm of social mindfulness is thus established as the foundation of feminist spirituality. The focus of this work is on the possibility of applying the ethics of mindfulness as a paradigm to interpersonal interrelatedness. The relations among humans, nature, reason and emotion in self-development are confronted with the paradigm o...

  17. Civil Society and Paths to Abolition

    Directory of Open Access Journals (Sweden)

    Seymour DRESCHER

    2015-12-01

    Full Text Available Abstract Through a comparative analysis, this article aims to present an overview of British, French, Russian, American and Brazilian abolitionist action, between the late eighteenth century and throughout the nineteenth century. Indicating the struggles of pro-abolition civil associations, the paths taken in Britain, France, the US and Brazil are presented in parallel - either to emphasize approaches, either to highlight the undeniable peculiarities - revealing the marks of violence and negotiation present in the emancipation process.

  18. Critical crack path assessments in failure investigations

    Directory of Open Access Journals (Sweden)

    Robert D. Caligiuri

    2015-10-01

    Full Text Available This paper presents a case study in which identification of the controlling crack path was critical to identifying the root cause of the failure. The case involves the rupture of a 30-inch (0.76 m natural gas pipeline in 2010 that tragically led to the destruction of a number of homes and the loss of life. The segment of the pipeline that ruptured was installed in 1956. The longitudinal seam of the segment that ruptured was supposed to have been fabricated by double submerged arc welding. Unfortunately, portions of the segment only received a single submerged arc weld on the outside, leaving unwelded areas on the inside diameter. Post-failure examination of the segment revealed that the rupture originated at one of these unwelded areas. Examination also revealed three additional crack paths or zones emanating from the unwelded area: a zone of ductile tearing, a zone of fatigue, and a zone of cleavage fracture, in that sequence. Initial investigators ignored the ductile tear, assumed the critical crack path was the fatigue component, and (incorrectly concluded that the root cause of the incident was the failure of the operator to hydrotest the segment after it was installed in 1956. However, as discussed in this paper, the critical path or mechanism was the ductile tear. Furthermore, it was determined that the ductile tear was created during the hydrotest at installation by a mechanism known as pressure reversal. Thus the correct root cause of the rupture was the hydrotest the operator subjected the segment to at installation, helping to increase the awareness of operators and regulators about the potential problems associated with hydrotesting.

  19. Covariant path integrals on hyperbolic surfaces

    International Nuclear Information System (INIS)

    Schaefer, J.

    1997-01-01

    DeWitt close-quote s covariant formulation of path integration [B. De Witt, open-quotes Dynamical theory in curved spaces. I. A review of the classical and quantum action principles,close quotes Rev. Mod. Phys. 29, 377 endash 397 (1957)] has two practical advantages over the traditional methods of open-quotes lattice approximations;close quotes there is no ordering problem, and classical symmetries are manifestly preserved at the quantum level. Applying the spectral theorem for unbounded self-adjoint operators, we provide a rigorous proof of the convergence of certain path integrals on Riemann surfaces of constant curvature -1. The Pauli endash DeWitt curvature correction term arises, as in DeWitt close-quote s work. Introducing a Fuchsian group Γ of the first kind, and a continuous, bounded, Γ-automorphic potential V, we obtain a Feynman endash Kac formula for the automorphic Schroedinger equation on the Riemann surface Γ backslash H. We analyze the Wick rotation and prove the strong convergence of the so-called Feynman maps [K. D. Elworthy, Path Integration on Manifolds, Mathematical Aspects of Superspace, edited by Seifert, Clarke, and Rosenblum (Reidel, Boston, 1983), pp. 47 endash 90] on a dense set of states. Finally, we give a new proof of some results in C. Grosche and F. Steiner, open-quotes The path integral on the Poincare upper half plane and for Liouville quantum mechanics,close quotes Phys. Lett. A 123, 319 endash 328 (1987). copyright 1997 American Institute of Physics

  20. All new custom path photo book creation

    Science.gov (United States)

    Wang, Wiley; Muzzolini, Russ

    2012-03-01

    In this paper, we present an all new custom path to allow consumers to have full control to their photos and the format of their books, while providing them with guidance to make their creation fast and easy. The users can choose to fully automate the initial creation, and then customize every page. The system manage many design themes along with numerous design elements, such as layouts, backgrounds, embellishments and pattern bands. The users can also utilize photos from multiple sources including their computers, Shutterfly accounts, Shutterfly Share sites and Facebook. The users can also use a photo as background, add, move and resize photos and text - putting what they want where they want instead of being confined to templates. The new path allows users to add embellishments anywhere in the book, and the high-performance platform can support up to 1,000 photos per book and up to 25 pictures per page. The path offers either Smart Autofill or Storyboard features allowing customers to populate their books with photos so they can add captions and customize the pages.

  1. Auditory perception of motor vehicle travel paths.

    Science.gov (United States)

    Ashmead, Daniel H; Grantham, D Wesley; Maloff, Erin S; Hornsby, Benjamin; Nakamura, Takabun; Davis, Timothy J; Pampel, Faith; Rushing, Erin G

    2012-06-01

    These experiments address concerns that motor vehicles in electric engine mode are so quiet that they pose a risk to pedestrians, especially those with visual impairments. The "quiet car" issue has focused on hybrid and electric vehicles, although it also applies to internal combustion engine vehicles. Previous research has focused on detectability of vehicles, mostly in quiet settings. Instead, we focused on the functional ability to perceive vehicle motion paths. Participants judged whether simulated vehicles were traveling straight or turning, with emphasis on the impact of background traffic sound. In quiet, listeners made the straight-or-turn judgment soon enough in the vehicle's path to be useful for deciding whether to start crossing the street. This judgment is based largely on sound level cues rather than the spatial direction of the vehicle. With even moderate background traffic sound, the ability to tell straight from turn paths is severely compromised. The signal-to-noise ratio needed for the straight-or-turn judgment is much higher than that needed to detect a vehicle. Although a requirement for a minimum vehicle sound level might enhance detection of vehicles in quiet settings, it is unlikely that this requirement would contribute to pedestrian awareness of vehicle movements in typical traffic settings with many vehicles present. The findings are relevant to deliberations by government agencies and automobile manufacturers about standards for minimum automobile sounds and, more generally, for solutions to pedestrians' needs for information about traffic, especially for pedestrians with sensory impairments.

  2. Creep analysis by the path function method

    International Nuclear Information System (INIS)

    Akin, J.E.; Pardue, R.M.

    1977-01-01

    The finite element method has become a common analysis procedure for the creep analysis of structures. The most recent programs are designed to handle a general class of material properties and are able to calculate elastic, plastic, and creep components of strain under general loading histories. The constant stress approach is too crude a model to accurately represent the actual behaviour of the stress for large time steps. The true path of a point in the effective stress-effective strain (sigmasup(e)-epsilonsup(c)) plane is often one in which the slope is rapidly changing. Thus the stress level quickly moves away from the initial stress level and then gradually approaches the final one. The result is that the assumed constant stress level quickly becomes inaccurate. What is required is a better method of approximation of the true path in the sigmasup(e)-epsilonsup(c) space. The method described here is called the path function approach because it employs an assumed function to estimate the motion of points in the sigmasup(e)-epsilonsup(c) space. (Auth.)

  3. Accelerating cleanup. Paths to closure Hanford Site

    International Nuclear Information System (INIS)

    Edwards, C.

    1998-01-01

    This document was previously referred to as the Draft 2006 Plan. As part of the DOE's national strategy, the Richland Operations Office's Paths to Closure summarizes an integrated path forward for environmental cleanup at the Hanford Site. The Hanford Site underwent a concerted effort between 1994 and 1996 to accelerate the cleanup of the Site. These efforts are reflected in the current Site Baseline. This document describes the current Site Baseline and suggests strategies for further improvements in scope, schedule and cost. The Environmental Management program decided to change the name of the draft strategy and the document describing it in response to a series of stakeholder concerns, including the practicality of achieving widespread cleanup by 2006. Also, EM was concerned that calling the document a plan could be misconstrued to be a proposal by DOE or a decision-making document. The change in name, however, does not diminish the 2006 vision. To that end, Paths to Closure retains a focus on 2006, which serves as a point in time around which objectives and goals are established

  4. Path-integral computation of superfluid densities

    International Nuclear Information System (INIS)

    Pollock, E.L.; Ceperley, D.M.

    1987-01-01

    The normal and superfluid densities are defined by the response of a liquid to sample boundary motion. The free-energy change due to uniform boundary motion can be calculated by path-integral methods from the distribution of the winding number of the paths around a periodic cell. This provides a conceptually and computationally simple way of calculating the superfluid density for any Bose system. The linear-response formulation relates the superfluid density to the momentum-density correlation function, which has a short-ranged part related to the normal density and, in the case of a superfluid, a long-ranged part whose strength is proportional to the superfluid density. These facts are discussed in the context of path-integral computations and demonstrated for liquid 4 He along the saturated vapor-pressure curve. Below the experimental superfluid transition temperature the computed superfluid fractions agree with the experimental values to within the statistical uncertainties of a few percent in the computations. The computed transition is broadened by finite-sample-size effects

  5. Path Models of Vocal Emotion Communication.

    Directory of Open Access Journals (Sweden)

    Tanja Bänziger

    Full Text Available We propose to use a comprehensive path model of vocal emotion communication, encompassing encoding, transmission, and decoding processes, to empirically model data sets on emotion expression and recognition. The utility of the approach is demonstrated for two data sets from two different cultures and languages, based on corpora of vocal emotion enactment by professional actors and emotion inference by naïve listeners. Lens model equations, hierarchical regression, and multivariate path analysis are used to compare the relative contributions of objectively measured acoustic cues in the enacted expressions and subjective voice cues as perceived by listeners to the variance in emotion inference from vocal expressions for four emotion families (fear, anger, happiness, and sadness. While the results confirm the central role of arousal in vocal emotion communication, the utility of applying an extended path modeling framework is demonstrated by the identification of unique combinations of distal cues and proximal percepts carrying information about specific emotion families, independent of arousal. The statistical models generated show that more sophisticated acoustic parameters need to be developed to explain the distal underpinnings of subjective voice quality percepts that account for much of the variance in emotion inference, in particular voice instability and roughness. The general approach advocated here, as well as the specific results, open up new research strategies for work in psychology (specifically emotion and social perception research and engineering and computer science (specifically research and development in the domain of affective computing, particularly on automatic emotion detection and synthetic emotion expression in avatars.

  6. DICOM involving XML path-tag

    Science.gov (United States)

    Zeng, Qiang; Yao, Zhihong; Liu, Lei

    2011-03-01

    Digital Imaging and Communications in Medicine (DICOM) is a standard for handling, storing, printing, and transmitting information in medical imaging. XML (Extensible Markup Language) is a set of rules for encoding documents in machine-readable form which has become more and more popular. The combination of these two is very necessary and promising. Using XML tags instead of numeric labels in DICOM files will effectively increase the readability and enhance the clear hierarchical structure of DICOM files. However, due to the fact that the XML tags rely heavily on the orders of the tags, the strong data dependency has a lot of influence on the flexibility of inserting and exchanging data. In order to improve the extensibility and sharing of DICOM files, this paper introduces XML Path-Tag to DICOM. When a DICOM file is converted to XML format, adding simple Path-Tag into the DICOM file in place of complex tags will keep the flexibility of a DICOM file while inserting data elements and give full play to the advantages of the structure and readability of an XML file. Our method can solve the weak readability problem of DICOM files and the tedious work of inserting data into an XML file. In addition, we set up a conversion engine that can transform among traditional DICOM files, XML-DCM and XML-DCM files involving XML Path-Tag efficiently.

  7. Designing the Alluvial Riverbeds in Curved Paths

    Science.gov (United States)

    Macura, Viliam; Škrinár, Andrej; Štefunková, Zuzana; Muchová, Zlatica; Majorošová, Martina

    2017-10-01

    The paper presents the method of determining the shape of the riverbed in curves of the watercourse, which is based on the method of Ikeda (1975) developed for a slightly curved path in sandy riverbed. Regulated rivers have essentially slightly and smoothly curved paths; therefore, this methodology provides the appropriate basis for river restoration. Based on the research in the experimental reach of the Holeška Brook and several alluvial mountain streams the methodology was adjusted. The method also takes into account other important characteristics of bottom material - the shape and orientation of the particles, settling velocity and drag coefficients. Thus, the method is mainly meant for the natural sand-gravel material, which is heterogeneous and the particle shape of the bottom material is very different from spherical. The calculation of the river channel in the curved path provides the basis for the design of optimal habitat, but also for the design of foundations of armouring of the bankside of the channel. The input data is adapted to the conditions of design practice.

  8. Path integral for gauge theories with fermions

    International Nuclear Information System (INIS)

    Fujikawa, K.

    1980-01-01

    The Atiyah-Singer index theorem indicates that a naive unitary transformation of basis vectors for fermions interacting with gauge fields is not allowed in general. On the basis of this observation, it was previously shown that the path-integral measure of a gauge-invariant fermion theory is transformed nontrivially under the chiral transformation, and thus leads to a simple derivation of ''anomalous'' chiral Ward-Takahashi identities. We here clarify some of the technical aspects associated with the discussion. It is shown that the Jacobian factor in the path-integral measure, which corresponds to the Adler-Bell-Jackiw anomaly, is independent of any smooth regularization procedure of large eigenvalues of D in Euclidean theory; this property holds in any even-dimensional space-time and also for the gravitational anomaly. The appearance of the anomaly and its connection with the index theorem are thus related to the fact that the primary importance is attached to the Lorentz-covariant ''energy'' operator D and that D and γ 5 do not commute. The abnormal behavior of the path-integral measure at the zero-frequency sector in the presence of instantons and its connection with spontaneous symmetry breaking is also clarified. We comment on several other problems associated with the anomaly and on the Pauli-Villars regularization method

  9. Path integration on space times with symmetry

    International Nuclear Information System (INIS)

    Low, S.G.

    1985-01-01

    Path integration on space times with symmetry is investigated using a definition of path integration of Gaussian integrators. Gaussian integrators, systematically developed using the theory of projective distributions, may be defined in terms of a Jacobi operator Green function. This definition of the path integral yields a semiclassical expansion of the propagator which is valid on caustics. The semiclassical approximation to the free particle propagator on symmetric and reductive homogeneous spaces is computed in terms of the complete solution of the Jacobi equation. The results are used to test the validity of using the Schwinger-DeWitt transform to compute an approximation to the coincidence limit of a field theory Green function from a WKB propagator. The method is found not to be valid except for certain special cases. These cases include manifolds constructed from the direct product of flat space and group manifolds, on which the free particle WKB approximation is exact and two sphere. The multiple geodesic contribution to 2 > on Schwarzschild in the neighborhood of rho = 3M is computed using the transform

  10. MinePath: Mining for Phenotype Differential Sub-paths in Molecular Pathways

    Science.gov (United States)

    Koumakis, Lefteris; Kartsaki, Evgenia; Chatzimina, Maria; Zervakis, Michalis; Vassou, Despoina; Marias, Kostas; Moustakis, Vassilis; Potamias, George

    2016-01-01

    Pathway analysis methodologies couple traditional gene expression analysis with knowledge encoded in established molecular pathway networks, offering a promising approach towards the biological interpretation of phenotype differentiating genes. Early pathway analysis methodologies, named as gene set analysis (GSA), view pathways just as plain lists of genes without taking into account either the underlying pathway network topology or the involved gene regulatory relations. These approaches, even if they achieve computational efficiency and simplicity, consider pathways that involve the same genes as equivalent in terms of their gene enrichment characteristics. Most recent pathway analysis approaches take into account the underlying gene regulatory relations by examining their consistency with gene expression profiles and computing a score for each profile. Even with this approach, assessing and scoring single-relations limits the ability to reveal key gene regulation mechanisms hidden in longer pathway sub-paths. We introduce MinePath, a pathway analysis methodology that addresses and overcomes the aforementioned problems. MinePath facilitates the decomposition of pathways into their constituent sub-paths. Decomposition leads to the transformation of single-relations to complex regulation sub-paths. Regulation sub-paths are then matched with gene expression sample profiles in order to evaluate their functional status and to assess phenotype differential power. Assessment of differential power supports the identification of the most discriminant profiles. In addition, MinePath assess the significance of the pathways as a whole, ranking them by their p-values. Comparison results with state-of-the-art pathway analysis systems are indicative for the soundness and reliability of the MinePath approach. In contrast with many pathway analysis tools, MinePath is a web-based system (www.minepath.org) offering dynamic and rich pathway visualization functionality, with the

  11. Attitudes toward expanding nurses' authority.

    Science.gov (United States)

    Kerzman, Hana; Van Dijk, Dina; Eizenberg, Limor; Khaikin, Rut; Phridman, Shoshi; Siman-Tov, Maya; Goldberg, Shoshi

    2015-01-01

    In recent years, an increasing number of care procedures previously under the physician's authority have been placed in the hands of registered nurses. The purpose of this study was to examine the attitudes of nurses towards expanding nurses' authority and the relationships between these attitudes and job satisfaction facets, professional characteristics, and demographics. A cross-sectional study was conducted between 2010 and 2011 in three major medical centers in Israel. Participants included 833 nurses working in 89 departments. Attitudes toward the expansion of nurses' authority were assessed by self-report questionnaire, as well as job satisfaction facets including perception of professional autonomy, nurse-physician working relations, workload and burnout, perceptions of quality of care, and nursing staff satisfaction at work. Nurses reported positive attitudes toward the expansion of nurses' authority and moderate attitudes for interpretation of diagnostic tests in selected situations. The results of multivariate regression analyses demonstrate that the nurses' satisfaction from professional autonomy and work relations were the most influential factors in explaining their attitudes toward the expansion of nurses' authority. In addition, professionally young nurses tend to be more positive regarding changes in nurses' authority. In the Israeli reality of a nurse's shortage, we are witnessing professional transitions toward expansion of the scope of nurses' accountability and decision-making authority. The current research contributes to our understanding of attitudes toward the expansion of nurses' authority among the nursing staffs. The findings indicate the necessity of redefining the scope of nursing practice within the current professional context.

  12. Convergence: How Nursing Unions and Magnet are Advancing Nursing.

    Science.gov (United States)

    Johnson, Joyce E; Billingsley, Molley

    2014-01-01

    Historically, unions and professional associations such as the American Nurses Association have been adversaries in the fight to represent the best interests of the nursing profession. We reviewed the literature on the evolution of nursing unions, nursing's historical unease about unions, the Magnet designation in nursing, the tensions between the unions and Magnet, the core values and commonalities they share, and the obligations of nursing as a profession. Refocusing on the advancement of our profession provides a positive pathway in which the collective efforts of nursing unions and professional initiatives such as the Magnet designation converge during these turbulent times for our profession. The single, central organizing idea of nursing-where nursing unions and Magnet converge-is the pivotal role of nurses in delivering high-quality patient care. The often-maligned dialectic between unions and Magnet has advanced and not hindered the nursing profession. © 2014 Wiley Periodicals, Inc.

  13. Nurse manager engagement: what it means to nurse managers and staff nurses.

    Science.gov (United States)

    Gray, Linda R; Shirey, Maria R

    2013-01-01

    To describe what nurse manager engagement means to nurse managers and staff nurses by incorporating an organizational dashboard to document engagement outcomes. Retaining engaged nurse managers is crucial for individual performance and organizational outcomes. However, nurse manager engagement is currently underreported in the literature. Existing data from the 2010 Employee Opinion Survey at the Baylor University Medical Center in Dallas, Texas, were used to measure staff engagement among 28 nurse managers and 1497 staff nurses. The data showed a 21% gap between manager and staff nurse engagement levels, with managers showing higher engagement levels than staff. No clear depiction of nurse manager engagement emerged. Consequently, an expanded definition of nurse manager engagement was developed alongside a beginning dashboard of engagement outcomes. The findings have implications for overcoming barriers that affect staff nurse engagement, improving outcomes, and creating definitions of nurse manager engagement.

  14. Hospital nurses' work motivation.

    Science.gov (United States)

    Toode, Kristi; Routasalo, Pirkko; Helminen, Mika; Suominen, Tarja

    2015-06-01

    The knowledge surrounding nurses' work motivation is currently insufficient, and previous studies have rarely taken into account the role of many influential background factors. This study investigates the motivation of Estonian nurses in hospitals, and how individual and organisational background factors influence their motivation to work. The study is quantitative and cross-sectional. An electronically self-reported questionnaire was used for data collection. The sample comprised of 201 Registered Nurses working in various hospital settings in Estonia. Data were analysed using descriptive statistics, two-sample Wilcoxon rank-sum (Mann-Whitney) test, Kruskal-Wallis equality-of-populations rank test and Spearman's correlation. Both extrinsic and intrinsic motivations were noted among hospital nurses. Nurses were moderately externally motivated (M = 3.63, SD = 0.89) and intrinsically strongly motivated (M = 4.98, SD = 1.03). A nurses' age and the duration of service were positively correlated with one particular area of extrinsic work motivation, namely introjected regulation (p extrinsic motivation (p = 0.016) and intrinsic work motivation (p = 0.004). The findings expand current knowledge of nurses' work motivation by describing the amount and orientation of work motivation among hospital nurses and highlighting background factors which should be taken into account in order to sustain and increase their intrinsic work motivation. The instrument used in the study can be an effective tool for nurse managers to determine a nurse's reasons to work and to choose a proper motivational strategy. Further research and testing of the instrument in different countries and in different contexts of nursing is however required. © 2014 Nordic College of Caring Science.

  15. Vapor nucleation paths in lyophobic nanopores.

    Science.gov (United States)

    Tinti, Antonio; Giacomello, Alberto; Casciola, Carlo Massimo

    2018-04-19

    In recent years, technologies revolving around the use of lyophobic nanopores gained considerable attention in both fundamental and applied research. Owing to the enormous internal surface area, heterogeneous lyophobic systems (HLS), constituted by a nanoporous lyophobic material and a non-wetting liquid, are promising candidates for the efficient storage or dissipation of mechanical energy. These diverse applications both rely on the forced intrusion and extrusion of the non-wetting liquid inside the pores; the behavior of HLS for storage or dissipation depends on the hysteresis between these two processes, which, in turn, are determined by the microscopic details of the system. It is easy to understand that molecular simulations provide an unmatched tool for understanding phenomena at these scales. In this contribution we use advanced atomistic simulation techniques in order to study the nucleation of vapor bubbles inside lyophobic mesopores. The use of the string method in collective variables allows us to overcome the computational challenges associated with the activated nature of the phenomenon, rendering a detailed picture of nucleation in confinement. In particular, this rare event method efficiently searches for the most probable nucleation path(s) in otherwise intractable, high-dimensional free-energy landscapes. Results reveal the existence of several independent nucleation paths associated with different free-energy barriers. In particular, there is a family of asymmetric transition paths, in which a bubble forms at one of the walls; the other family involves the formation of axisymmetric bubbles with an annulus shape. The computed free-energy profiles reveal that the asymmetric path is significantly more probable than the symmetric one, while the exact position where the asymmetric bubble forms is less relevant for the free energetics of the process. A comparison of the atomistic results with continuum models is also presented, showing how, for simple

  16. Nasoenteral feeding tube placement by nurses using an electromagnetic guidance system (with video)

    NARCIS (Netherlands)

    Mathus-Vliegen, Elisabeth M. H.; Duflou, Ann; Spanier, Marcel B. W.; Fockens, Paul

    2010-01-01

    BACKGROUND: The early institution of feeding in patients who need postpyloric feeding tubes is often hampered by a limited availability of endoscopists experienced in safe tube positioning. OBJECTIVE: To test the feasibility of having nurses place postpyloric feeding tubes by using a universal path

  17. The Impact of Hurricanes Katrina and Rita on Louisiana School Nurses

    Science.gov (United States)

    Broussard, Lisa; Myers, Rachel; Meaux, Julie

    2008-01-01

    In the fall of 2005, the coast of Louisiana was devastated by two hurricanes, Katrina and Rita. Not only did these natural disasters have detrimental effects for those directly in their path, the storms had an impact on the lives of everyone in Louisiana. The professional practice of many Louisiana school nurses was affected by several factors,…

  18. Using Nurse Ratings of Physician Communication in the ICU To Identify Potential Targets for Interventions To Improve End-of-Life Care.

    Science.gov (United States)

    Ramos, Kathleen J; Downey, Lois; Nielsen, Elizabeth L; Treece, Patsy D; Shannon, Sarah E; Curtis, J Randall; Engelberg, Ruth A

    2016-03-01

    Communication among doctors, nurses, and families contributes to high-quality end-of-life care, but is difficult to improve. Our objective was to identify aspects of communication appropriate for interventions to improve quality of dying in the intensive care unit (ICU). This observational study used data from a cluster-randomized trial of an interdisciplinary intervention to improve end-of-life care at 15 Seattle/Tacoma area hospitals (2003-2008). Nurses completed surveys for patients dying in the ICU. We examined associations between nurse-assessed predictors (physician-nurse communication, physician-family communication) and nurse ratings of patients' quality of dying (nurse-QODD-1). Based on 1173 nurse surveys, four of six physician-nurse communication topics were positively associated with nurse-QODD-1: family questions, family dynamics, spiritual/religious issues, and cultural issues. Discussions between nurses and physicians about nurses' concerns for patients or families were negatively associated. All physician-family communication ratings, as assessed by nurses, were positively associated with nurse-QODD-1: answering family's questions, listening to family, asking about treatments patient would want, helping family decide patient's treatment wishes, and overall communication. Path analysis suggested overall physician-family communication and helping family incorporate patient's wishes were directly associated with nurse-QODD-1. Several topics of physician-nurse communication, as rated by nurses, were associated with higher nurse-rated quality of dying, whereas one topic, nurses' concerns for patient or family, was associated with poorer ratings. Higher nurse ratings of physician-family communication were uniformly associated with higher quality of dying, highlighting the importance of this communication. Physician support of family decision making was particularly important, suggesting a potential target for interventions to improve end-of-life care.

  19. Assisted suicide: implications for nurses and nursing.

    Science.gov (United States)

    Daly, B J; Berry, D; Fitzpatrick, J J; Drew, B; Montgomery, K

    1997-01-01

    Assisted suicide is an issue of great importance to nurses. This issue reflects our values and beliefs as a society, calls for a clear and precise response as a profession, and challenges individual nurses to think about their own moral views. The history of the debate and the compelling moral arguments on both sides attest to the complexity of the issue and also suggest that it will not soon be resolved. The current position of the profession, as expressed in the ANA Code for Nurses and a specific position statement, were reviewed. The dilemma faced by the individual nurse who perceives an obligation to adhere to the guidelines specified by his or her profession's code and yet whose conscience dictates an act in violation of this code has been discussed as an instance of conscientious objection. While this analysis has been necessarily brief, it was intended to illustrate the importance of being clear about one's personal moral views and equally clear about one's duty to fulfil the obligations stemming from the profession's public statements. It is essential that the profession continue to explore the moral issues involved in requests for assistance in dying and provide additional guidelines for practicing nurses, with sound rationale for the profession's position.

  20. Causal modeling of self-concept, job satisfaction, and retention of nurses.

    Science.gov (United States)

    Cowin, Leanne S; Johnson, Maree; Craven, Rhonda G; Marsh, Herbert W

    2008-10-01

    The critical shortage of nurses experienced throughout the western world has prompted researchers to examine one major component of this complex problem - the impact of nurses' professional identity and job satisfaction on retention. A descriptive correlational design with a longitudinal element was used to examine a causal model of nurses' self-concept, job satisfaction, and retention plans in 2002. A random sample of 2000 registered nurses was selected from the state registering authority listing. A postal survey assessing multiple dimensions of nurses' self-concept (measured by the nurse self-concept questionnaire), job satisfaction (measured by the index of work satisfaction) was undertaken at Time 1 (n=528) and 8 months later at Time 2 (n=332) (including retention plans (measured by the Nurse Retention Index). Using confirmatory factor analysis, correlation matrices and path analysis, measurement and structural models were examined on matching pairs of data from T1 and T2 (total sample N=332). Nurses' self-concept was found to have a stronger association with nurses' retention plans (B=.45) than job satisfaction (B=.28). Aspects of pay and task were not significantly related to retention plans, however, professional status (r=.51), and to a lesser extent, organizational policies (r=.27) were significant factors. Nurses' general self-concept was strongly related (r=.57) to retention plans. Strategies or interventions requiring implementation and evaluation include: counseling to improve nurse general self-concept, education programs and competencies in health communication between health professionals, reporting of nurse-initiated programs with substantial patient benefit, nurse-friendly organizational policies, common health team learning opportunities, and autonomous practice models.

  1. Astronomers Trace Microquasar's Path Back in Time

    Science.gov (United States)

    2003-01-01

    Astronomers have traced the orbit through our Milky Way Galaxy of a voracious neutron star and a companion star it is cannibalizing, and conclude that the pair joined more than 30 million years ago and probably were catapulted out of a cluster of stars far from the Galaxy's center. Path of Microquasar and Sun Path of Microquasar (red) and Sun (yellow) through the Milky Way Galaxy for the past 230 million years. Animations: GIF Version MPEG Version CREDIT: Mirabel & Rodrigues, NRAO/AUI/NSF The pair of stars, called Scorpius X-1, form a "microquasar," in which material sucked from the "normal" star forms a rapidly-rotating disk around the superdense neutron star. The disk becomes so hot it emits X-rays, and also spits out "jets" of subatomic particles at nearly the speed of light. Using precise positional data from the National Science Foundation's Very Long Baseline Array (VLBA) and from optical telescopes, Felix Mirabel, an astrophysicist at the Institute for Astronomy and Space Physics of Argentina and French Atomic Energy Commission, and Irapuan Rodrigues, also of the French Atomic Energy Commission, calculated that Scorpius X-1 is not orbiting the Milky Way's center in step with most other stars, but instead follows an eccentric path far above and below the Galaxy's plane. Scorpius X-1, discovered with a rocket-borne X-ray telescope in 1962, is about 9,000 light-years from Earth. It is the brightest continuous source of X-rays beyond the Solar System. The 1962 discovery and associated work earned a share of the 2002 Nobel Prize in physics for Riccardo Giacconi. Mirabel and Rodrigues used a number of published observations to calculate the path of Scorpius X-1 over the past few million years. "This is the most accurate determination we have made of the path of an X-ray binary," said Mirabel. By tracing the object's path backward in time, the scientists were able to conclude that the neutron star and its companion have been traveling together for more than 30

  2. Technology Paths in Energy-Efficient and Sustainable Construction

    DEFF Research Database (Denmark)

    Holm, Jesper; Lund Sørensen, Runa Cecilie

    2015-01-01

    Various tehcnology paths and regimes, Building codes and standards in energy, eco and sustainable housing......Various tehcnology paths and regimes, Building codes and standards in energy, eco and sustainable housing...

  3. comparative analysis and implementation of dijkstra's shortest path

    African Journals Online (AJOL)

    user

    path problem requires finding a single shortest-path between given vertices s and t; ... Bridge in 1735, [5 – 10]. This problem led to the .... their advancements from new design paradigms, data structures ..... .

  4. Shortest Path Problems in a Stochastic and Dynamic Environment

    National Research Council Canada - National Science Library

    Cho, Jae

    2003-01-01

    .... Particularly, we develop a variety of algorithms to solve the expected shortest path problem in addition to techniques for computing the total travel time distribution along a path in the network...

  5. [Clinical trials in nursing journals].

    Science.gov (United States)

    Di Giulio, Paola; Campagna, Sara; Dimonte, Valerio

    2014-01-01

    Clinical trials are pivotal for the development of nursing knowledge. To describe the clinical trials published in nursing journals in the last two years and propose some general reflections on nursing research. A search with the key-word trial was done on PubMed (2009-2013) on Cancer Nursing, European Journal of Oncology Nursing, International Journal of Nursing Studies, Journal of Advanced Nursing, Journal of Clinical Nursing and Nursing Research. Of 228 trials identified, 104 (45.8%) were published in the last 2 years. Nurses from Asian countries published the larger number of trials. Educational and supportive interventions were the most studied (61/104 trials), followed by clinical interventions (33/104). Samples were limited and most trials are monocentric. A growing number of trials is published, on issues relevant for the nursing profession, however larger samples and multicentric studies would be necessary.

  6. Validation of nursing management diagnoses.

    Science.gov (United States)

    Morrison, R S

    1995-01-01

    Nursing management diagnosis based on nursing and management science, merges "nursing diagnosis" and "organizational diagnosis". Nursing management diagnosis is a judgment about nursing organizational problems. The diagnoses provide a basis for nurse manager interventions to achieve outcomes for which a nurse manager is accountable. A nursing organizational problem is a discrepancy between what should be happening and what is actually happening that prevents the goals of nursing from being accomplished. The purpose of this study was to validate 73 nursing management diagnoses identified previously in 1992: 71 of the 72 diagnoses were considered valid by at least 70% of 136 participants. Diagnoses considered to have high priority for future research and development were identified by summing the mean scores for perceived frequency of occurrence and level of disruption. Further development of nursing management diagnoses and testing of their effectiveness in enhancing decision making is recommended.

  7. NURSING AND ITS PROBLEMS*

    African Journals Online (AJOL)

    1971-07-10

    Jul 10, 1971 ... not enough stress was laid on the exceedingly importa~t part played by the nursing staff .... trained to take more of the load off the sister, and on the other hand the sister should .... a world problem. Employment of Nurse Aides.

  8. Registered Nurse (Associate Degree).

    Science.gov (United States)

    Ohio State Univ., Columbus. Center on Education and Training for Employment.

    This document, which is designed for use in developing a tech prep competency profile for the occupation of registered nurse (with an associate degree), lists technical competencies and competency builders for 19 units pertinent to the health technologies cluster in general and 5 units specific to the occupation of registered nurse. The following…

  9. American Nursing's First Textbooks.

    Science.gov (United States)

    Flaumenhaft, Eugene; Flaumenhaft, Carol

    1989-01-01

    Discusses the four textbooks, written in the last quarter of the 19th century, that shaped nursing in the United States. They provided technical information in a systematic fashion, established an autonomous literature that guided nurses in school and beyond, and defined the training school curriculum. (JOW)

  10. Nursing Informatics Competency Program

    Science.gov (United States)

    Dunn, Kristina

    2017-01-01

    Currently, C Hospital lacks a standardized nursing informatics competency program to validate nurses' skills and knowledge in using electronic medical records (EMRs). At the study locale, the organization is about to embark on the implementation of a new, more comprehensive EMR system. All departments will be required to use the new EMR, unlike…

  11. Danish Perioperative Nurses' Documentation

    DEFF Research Database (Denmark)

    Søndergaard, Susanne Friis; Lorentzen, Vibeke; Sørensen, Erik E

    2017-01-01

    of 2015 to 2016, six participants tested an EHR containing a Danish edition of a selected section of the Perioperative Nursing Data Set. This study relied on realistic evaluation and participant observations to generate data. We found that nursing leadership was essential for improving perioperative...

  12. School Nurse Perspectives

    Science.gov (United States)

    Borja, Mary C.; Amidon, Christine; Spellings, Diane; Franzetti, Susan; Nasuta, Mary

    2009-01-01

    This article features school nurses from across the country who are championing for school-located influenza immunization within their communities. These nurses are: (1) Mary C. Borja; (2) Christine Amidon; (3) Diane Spellings; (4) Susan Franzetti; and (5) Mary Nasuta. (Contains 6 figures.)

  13. Path integral discussion for Smorodinsky-Winternitz potentials. Pt. 1

    International Nuclear Information System (INIS)

    Grosche, C.; Pogosyan, G.S.; Sissakian, A.N.

    1994-02-01

    Path integral formulations for the Smorodinsky-Winternitz potentials in two- and three-dimensional Euclidean space are presented. We mention all coordinate systems which separate the Smorodinsky-Winternitz potentials and state the corresponding path integral formulations. Whereas in many coordinate systems an explicit path integralformulation is not possible, we list in all soluble cases the path integral evaluations explicity in terms of the propagators and the spectral expansions into the wave-functions. (orig.)

  14. Path probability of stochastic motion: A functional approach

    Science.gov (United States)

    Hattori, Masayuki; Abe, Sumiyoshi

    2016-06-01

    The path probability of a particle undergoing stochastic motion is studied by the use of functional technique, and the general formula is derived for the path probability distribution functional. The probability of finding paths inside a tube/band, the center of which is stipulated by a given path, is analytically evaluated in a way analogous to continuous measurements in quantum mechanics. Then, the formalism developed here is applied to the stochastic dynamics of stock price in finance.

  15. Relationship between workplace spirituality and organizational citizenship behavior among nurses through mediation of affective organizational commitment.

    Science.gov (United States)

    Kazemipour, Farahnaz; Mohamad Amin, Salmiah; Pourseidi, Bahram

    2012-09-01

    This study aims to investigate the relationships between workplace spirituality, organizational citizenship behavior (OCB), and affective organizational commitment among nurses, and whether affective commitment mediates the relationship between workplace spirituality and OCB. In the present correlational study, a cross-sectional design was employed, and data were collected using a questionnaire-based survey. Based on the random sampling, 305 nurses were chosen and questionnaires were distributed among respondents in four public and general hospitals located in Kerman, Iran. To analyze the data descriptive statistics, Pearson coefficient, simple and multiple regression, and path analyses were also conducted. Workplace spirituality has a positive influence on nurses' OCB and affective commitment. Workplace spirituality explained 16% of the variation in OCB, while it explained 35% of the variation in affective commitment among nurses. Moreover, affective organizational commitment mediated the impact of workplace spirituality on OCB. Workplace spirituality predicts nurses' OCB and affective organizational commitment. It emphasizes benefits from the new perspective of workplace spirituality, particularly among nurses who need to be motivated in their work. This study illustrates that there are potential benefits owing to the positive influence of workplace spirituality on OCB and affective commitment among nurses. Managers of nursing services should consider workplace spirituality and its positive influence on nurses' outcomes in order to improve their performance and, subsequently, the healthcare system. © 2012 Sigma Theta Tau International.

  16. Nursing on the medical ward.

    Science.gov (United States)

    Parker, Judith M

    2004-12-01

    This paper considers some issues confronting contemporary medical nursing and draws upon psychoanalytic theories to investigate some seemingly straightforward and taken-for-granted areas of medical nursing work. I am arguing that the everyday work of medical nurses in caring for patients is concerned with bringing order to and placing boundaries around inherently unsettled and destabilized circumstances. I am also arguing that how nurses manage and organize their work in this regard stems from traditional practices that tend to be taken for granted and not explicitly thought about. It is therefore difficult for nurses to consider changing these practices that often have negative consequences for the nurses. I want to examine the impact upon nurses of the consequences of three taken-for-granted nursing practices: (i) the tendency of nurses to confine their reactions to what is going on so as to present a caring self; (ii) the tendency of nurses in their everyday talk to patients to confine, limit and minimize meaning; and (iii) the tensions and ambiguities that emerge for nurses in the policing function they perform in confining patients to the bed or the ward. Negative consequences on nurses of these practices potentially include stress and confusion regarding their ability to care for patients; an undervaluing of nursing skills; and a deterioration in the nurse-patient relationship. Clinical supervision for medical nurses is proposed as a means of facilitating greater understanding of the nature of nurses' relationships with patients and the complex dimensions of their medical nursing role.

  17. Native American nurse leadership.

    Science.gov (United States)

    Nichols, Lee A

    2004-07-01

    To identify which characteristics, wisdom, and skills are essential in becoming an effective Native American nurse leader. This will lead to the development of a curriculum suitable for Native American nurses. A qualitative, descriptive design was used for this study. Focus groups were conducted in Polson, Montana. A total of 67 Native and non-Native nurses participated. Sixty-seven percent of them were members of Indian tribes. Data were content analyzed using Spradley's ethnographic methodology. Three domains of analysis emerged: point of reference for the leader (individual, family, community), what a leader is (self-actualized, wise, experienced, political, bicultural, recognized, quiet presence, humble, spiritual, and visionary), and what a leader does (mentors, role models, communicates, listens, demonstrates values, mobilizes, and inspires). Native nurse leaders lead differently. Thus, a leadership curriculum suitable for Native nurses may lead to increased work productivity and therefore improved patient care for Native Americans.

  18. Leadership in school nursing.

    Science.gov (United States)

    Harshberger, Lorri A; Katrancha, Elizabeth D

    2009-03-01

    Whether you are new to school nursing or have been practicing for years, you must be aware that the title of school nurse puts you in a position of leadership. You lead students, faculty and staff in your school; you lead the community in which you live and work. You guide people toward health. They request information when faced with a health crisis. You take control in emergencies. School nurses are at the forefront of developing school health policies and procedures. Do you have the qualities of a leader? "The 21 Indispensable Qualities of a Leader" (Maxwell, 1999) expounds the characteristics of a good leader. This book helps the school nurse in the quest toward leadership. The following is a discussion of the main points of this book and their application to school nursing.

  19. Nursing Practice Environment and Outcomes for Oncology Nursing

    Science.gov (United States)

    Shang, Jingjing; Friese, Christopher R.; Wu, Evan; Aiken, Linda H.

    2012-01-01

    Background It is commonly assumed that oncology nurses experience high job-related burnout and high turnover because their work involves inherent stressors such as caring for patients with serious and often life-threatening illness. Objectives The objectives of this study were to examine the differences in outcomes such as job dissatisfaction and burnout between oncology nurses and medical-surgical nurses, and to identify factors that affect oncology nurse outcomes. Methods A secondary analysis of nurse survey data collected in 2006 including 4047 nurses from 282 hospitals in 3 states was performed; t test and χ2 test compared differences between oncology nurses and medical-surgical nurses in nurse outcomes and their assessments of nurse practice environment, as measured by the Practice Environment Scale of the Nursing Work Index. Logistic regression models estimated the effect of nurse practice environment on 4 nurse-reported outcomes: burnout, job dissatisfaction, intention to leave the current position, and perceived quality of care. Results Oncology nurses reported favorable practice environments and better outcomes than did medical-surgical nurses. All 4 subscales of the Practice Environment Scale of the Nursing Work Index studied were significantly associated with outcomes. Specifically, nurses who reported favorable nursing foundations for quality of care (eg, active in-service or preceptorship programs) were less likely to report burnout and leave their current position. Conclusions Better practice environments, including nurse foundations for quality care, can help to achieve optimal nurse outcomes. Implications for Practice Improving hospital practice environments holds significant potential to improve nurse well-being, retention, and quality of care. Specifically, hospitals should consider preceptor programs and continuing education and increase nurses’ participation in hospital decision making. PMID:22751101

  20. Path integral measure for first-order and metric gravities

    International Nuclear Information System (INIS)

    Aros, Rodrigo; Contreras, Mauricio; Zanelli, Jorge

    2003-01-01

    The equivalence between the path integrals for first-order gravity and the standard torsion-free, metric gravity in 3 + 1 dimensions is analysed. Starting with the path integral for first-order gravity, the correct measure for the path integral of the metric theory is obtained

  1. 28 CFR 36.403 - Alterations: Path of travel.

    Science.gov (United States)

    2010-07-01

    ... 28 Judicial Administration 1 2010-07-01 2010-07-01 false Alterations: Path of travel. 36.403... Alterations: Path of travel. (a) General. An alteration that affects or could affect the usability of or... the maximum extent feasible, the path of travel to the altered area and the restrooms, telephones, and...

  2. 76 FR 17064 - Shared Use Path Accessibility Guidelines

    Science.gov (United States)

    2011-03-28

    ...] RIN 3014-AA41 Shared Use Path Accessibility Guidelines AGENCY: Architectural and Transportation... (ANPRM) to develop accessibility guidelines for shared use paths. Shared use paths are designed for both... users. The guidelines will include technical provisions for making newly constructed and altered shared...

  3. Generating Approximative Minimum Length Paths in 3D for UAVs

    DEFF Research Database (Denmark)

    Schøler, Flemming; la Cour-Harbo, Anders; Bisgaard, Morten

    2012-01-01

    We consider the challenge of planning a minimum length path from an initial position to a desired position for a rotorcraft. The path is found in a 3-dimensional Euclidean space containing a geometric obstacle. We base our approach on visibility graphs which have been used extensively for path pl...

  4. A Path Space Extension for Robust Light Transport Simulation

    DEFF Research Database (Denmark)

    Hachisuka, Toshiya; Pantaleoni, Jacopo; Jensen, Henrik Wann

    2012-01-01

    We present a new sampling space for light transport paths that makes it possible to describe Monte Carlo path integration and photon density estimation in the same framework. A key contribution of our paper is the introduction of vertex perturbations, which extends the space of paths with loosely...

  5. Extremal and Degree Conditions for Path Extendability in Digraphs

    NARCIS (Netherlands)

    Zhang, Zan-Bo; Zhang, Xiaoyan; Broersma, Hajo; Lou, Dingjun

    2017-01-01

    In the study of cycles and paths, the meta-conjecture of Bondy that sufficient conditions for Hamiltonicity often imply pancyclicity has motivated research on the existence of cycles and paths of many lengths. Hendry further introduced the stronger concepts of cycle extendability and path

  6. Special cases of the quadratic shortest path problem

    NARCIS (Netherlands)

    Sotirov, Renata; Hu, Hao

    2017-01-01

    The quadratic shortest path problem (QSPP) is the problem of finding a path with prespecified start vertex s and end vertex t in a digraph such that the sum of weights of arcs and the sum of interaction costs over all pairs of arcs on the path is minimized. We first consider a variant of the QSPP

  7. A focussed dynamic path finding algorithm with constraints

    CSIR Research Space (South Africa)

    Leenen, L

    2013-11-01

    Full Text Available heuristic to focus the search for an optimal path. Existing approaches to solving path planning problems tend to combine path costs with various other criteria such as obstacle avoidance in the objective function which is being optimised. The authors...

  8. Path integration on the upper half-plane

    International Nuclear Information System (INIS)

    Kubo, Reijiro.

    1987-06-01

    Feynman's path integral is considered on the Poincare upper half-plane. It is shown that the fundamental solution to the heat equation δf/δt = Δ H f can be expressed in terms of a path integral. A simple relation between the path integral and the Selberg trace formula is discussed briefly. (author)

  9. Path Integration on the Upper Half-Plane

    OpenAIRE

    Reijiro, KUBO; Research Institute for Theoretical Physics Hiroshima University

    1987-01-01

    Feynman's path integral is considered on the Poincare upper half-plane. It is shown that the fundamental solution to the heat equation ∂f/∂t=Δ_Hf can be expressed in terms of a path integral. A simple relation between the path integral and the Selberg trace formula is discussed briefly.

  10. Nursing 2000: Collaboration to Promote Careers in Registered Nursing.

    Science.gov (United States)

    Wilson, Connie S.; Mitchell, Barbara S.

    1999-01-01

    The effectiveness of the collaborative Nursing 2000 model in promoting nursing careers was evaluated through a survey of 1,598 nursing students (637 responses). Most effective techniques were the "shadow a nurse" program, publications, classroom and community presentations, and career-counseling telephone calls. (SK)

  11. Views of Student Nurses on Caring and Technology in Nursing

    Science.gov (United States)

    Brodell, Elizabeth Becky

    2009-01-01

    Nurses entering the workforce are faced with many challenges, but today the multiple demands of patient care are complicated by a nurse's need to keep abreast of fast-changing technology. This research is universally relevant to nursing practice in educational settings and practice areas because nursing education needs to develop strategies to…

  12. Nursing and nursing education in Haiti.

    Science.gov (United States)

    Garfield, Richard M; Berryman, Elizabeth

    2012-01-01

    Haiti has long had the largest proportion of people living in poverty and the highest mortality level of any country in the Americas. On January 12, 2010, the most powerful earthquake to hit Haiti in 200 years struck. Before the earthquake, half of all Haitians lacked any access to modern medical care services. Health care professionals in Haiti number around one-fourth of the world average and about one-tenth the ratio present in North America. The establishment of new primary care services in a country where half of the people had no access to modern health care prior to the earthquake requires advanced practice roles for nurses and midwives. With a high burden of infectious, parasitic, and nutritional conditions, Haiti especially needs mid-level community health workers and nurses who can train and supervise them for public health programs. As in many other developing countries, organized nursing lacks many of the management and planning skills needed to move its agenda forward. The public schools prepare 3-year diploma graduates. These programs have upgraded the curriculum little in decades and have mainly trained for hospital service. Primary care, public health program management, and patient education had often not been stressed. Specializations in midwifery and HIV care exist, while only informal programs of specialization exist in administration, surgery, and pediatrics. An advanced practice role, nonetheless, is not yet well established. Nursing has much to contribute to the recovery of Haiti and the revitalization if its health system. Professional nurses are needed in clinics and hospitals throughout the country to care for patients, including thousands in need of rehabilitation and mental health services. Haitian nursing colleagues in North America have key roles in strengthening their profession. Ways of supporting our Haitian colleagues are detailed. Copyright © 2012 Elsevier Inc. All rights reserved.

  13. Concept caring in nursing

    Directory of Open Access Journals (Sweden)

    Lenka Drahošová

    2016-05-01

    Full Text Available Aim: The aim of this literature review was to search for qualitative studies focusing on the concept of caring in nursing, to analyse them and to synthesize knowledge that concerns the definition of the concept of caring in nursing from the point of view of nurses and patients. Design: Review. Methods: Qualitative studies were searched for systematically in the electronic databases Academic Search Complete (EBSCO, CINAHL, Medline, Science Direct, and the Wiley Library Online, according to set criteria and defined key words for the period 1970-2015. Seven selected articles were analysed after selection of documents with the aid of a sorting chart. Results: Nurses understand caring in nursing as a relationship with patients which is characterised on the nurses' part by an individual and empathetic approach, attentiveness, experience and sensitivity. Through caring, active communication takes place, providing information which reduces anxiety and leads to the breaking down of barriers. This relationship helps protect patients' autonomy, dignity and comfort. It requires experience on the part of nurses, and it is influenced by the environment. The nurses' personal qualities (what professional knowledge, attitudes and skills they have and their availability, reliability, and emotional and physical support are important to patients. Conclusion: The concept of caring is a content specific interpersonal process which is characterized by the professional knowledge, skills, personal maturity, and interpersonal sensitivity of nurses, which result in the protection, emotional support, and the meeting of bio-psycho-social needs of patients. The results of the overview study could contribute to an explanation and understanding of the nature of caring as a fundamental feature of the discipline of nursing.

  14. Sibling rivalry in nursing and the role of nurse psychotherapist.

    Science.gov (United States)

    Harrison, K A

    1998-01-01

    The burgeoning role of the analytically prepared nurse psychotherapist in Great Britain. To describe the struggles of nurses in this role and ways this struggle might be lessened. Observations of the author, an analytically prepared nurse psychotherapist-in-training in Great Britain. The role of the nurse psychotherapist with psychoanalytic training is in its infancy in Great Britain. Barriers to the development are both external, from outside the nursing profession, and internal, in the form of sibling rivalry or envy from less prepared nurses. Increased communication among nurses is encouraged so that a shared understanding and mutual respect may result.

  15. Continuing Education Preferences, Facilitators, and Barriers for Nursing Home Nurses.

    Science.gov (United States)

    Dyck, Mary J; Kim, Myoung Jin

    2018-01-01

    The purpose of the study was to determine the continuing education needs for nursing home nurses in rural central Illinois and to determine any potential facilitators or barriers to obtaining continuing education. Data were collected using the Educational Needs Assessment questionnaire. Descriptive statistics were computed to examine continuing education preferences, facilitators, and barriers among nursing home nurses. Independent samples t tests were used to compare preferences between administrative and staff nurses. The sample included 317 nurses from 34 facilities. The five top needs were related to clinical problems. Administrative nurses had greater needs for professional issues, managerial skills, and quality improvement than staff nurses. Barriers included rural settings, need for vacation time for programs, and inadequate staffing. Continuing education needs of nursing home nurses in Illinois are similar to previous studies conducted in Arizona and North Carolina. Continuing education barriers were mostly organizational, rather than personal. J Contin Nurs Educ. 2018;49(1):26-33. Copyright 2018, SLACK Incorporated.

  16. Ethical climate as a moderator between organizational trust and whistle-blowing among nurses and secretaries

    Science.gov (United States)

    Aydan, Seda; Kaya, Sidika

    2018-01-01

    Objectives: To reveal the effect of perception of ethical climate by nurses and secretaries and their level of organizational trust on their whistleblowing intention. Methods: Nurses and secretaries working in a University Hospital in Ankara, Turkey, were enrolled in the study conducted in 2016. Responses were received from 369 nurses and secretaries working at Clinics and Polyclinics. Path analysis, investigation of structural equation models used while multi-regression analysis was also applied. Results: According to the regression model, ethical climate dimensions, profession, gender, and work place had significant impact on the whistleblowing intention. According to Path analysis, ethical climate had direct impact of 69% on whistleblowing intention. It was seen that organizational trust had an indirect impact of 27% on the whistleblowing score when ethical climate had a moderator role. Conclusion: In order to promote whistleblowing in organizations, it is important to keep the ethical climate perception of employees and the level of their organizational trust at high levels. PMID:29805421

  17. Ethical climate as a moderator between organizational trust and whistle-blowing among nurses and secretaries.

    Science.gov (United States)

    Aydan, Seda; Kaya, Sidika

    2018-01-01

    To reveal the effect of perception of ethical climate by nurses and secretaries and their level of organizational trust on their whistleblowing intention. Nurses and secretaries working in a University Hospital in Ankara, Turkey, were enrolled in the study conducted in 2016. Responses were received from 369 nurses and secretaries working at Clinics and Polyclinics. Path analysis, investigation of structural equation models used while multi-regression analysis was also applied. According to the regression model, ethical climate dimensions, profession, gender, and work place had significant impact on the whistleblowing intention. According to Path analysis, ethical climate had direct impact of 69% on whistleblowing intention. It was seen that organizational trust had an indirect impact of 27% on the whistleblowing score when ethical climate had a moderator role. In order to promote whistleblowing in organizations, it is important to keep the ethical climate perception of employees and the level of their organizational trust at high levels.

  18. Pedestrian paths: why path-dependence theory leaves health policy analysis lost in space.

    Science.gov (United States)

    Brown, Lawrence D

    2010-08-01

    Path dependence, a model first advanced to explain puzzles in the diffusion of technology, has lately won allegiance among analysts of the politics of public policy, including health care policy. Though the central premise of the model--that past events and decisions shape options for innovation in the present and future--is indisputable (indeed path dependence is, so to speak, too shallow to be false), the approach, at least as applied to health policy, suffers from ambiguities that undercut its claims to illuminate policy projects such as managed care, on which this article focuses. Because path dependence adds little more than marginal value to familiar images of the politics of policy--incrementalism, for one--analysts might do well to put it on the back burner and pursue instead "thick descriptions" that help them to distinguish different degrees of openness to exogenous change among diverse policy arenas.

  19. Nursing in Modern Japan and its Significance: The Kyoto Training School for Nurses and the Kyoto Nursing School

    OpenAIRE

    小野, 尚香

    2003-01-01

    Nursing by Buddhist during Meiji Japan was stimulated by the visiting nursing program conducted by nurses connected with the Kyoto Training School for Nurses. Why were Buddhist priests attracted to the visiting nursing. what did they try to adopt and what kind of nursing activities did they try to organize? As the first step to answer these questions. in this paper I considered the specialty. the sociality. and the nursing spirit of the home nursing and district nursing provided by the ...

  20. Noncommutative quantum electrodynamics in path integral framework

    Energy Technology Data Exchange (ETDEWEB)

    Bourouaine, S; Benslama, A [Departement de Physique, Faculte des Sciences, Universite Mentouri, Constantine (Algeria)

    2005-08-19

    In this paper, the dynamics of a relativistic particle of spin 1/2, interacting with an external electromagnetic field in noncommutative space, is studied in the path integral framework. By adopting the Fradkin-Gitman formulation, the exact Green's function in noncommutative space (NCGF) for the quadratic case of a constant electromagnetic field is computed, and it is shown that its form is similar to its counterpart given in commutative space. In addition, it is deduced that the effect of noncommutativity has the same effect as an additional constant field depending on a noncommutative {theta} matrix.

  1. Noncommutative quantum electrodynamics in path integral framework

    International Nuclear Information System (INIS)

    Bourouaine, S; Benslama, A

    2005-01-01

    In this paper, the dynamics of a relativistic particle of spin 1/2, interacting with an external electromagnetic field in noncommutative space, is studied in the path integral framework. By adopting the Fradkin-Gitman formulation, the exact Green's function in noncommutative space (NCGF) for the quadratic case of a constant electromagnetic field is computed, and it is shown that its form is similar to its counterpart given in commutative space. In addition, it is deduced that the effect of noncommutativity has the same effect as an additional constant field depending on a noncommutative θ matrix

  2. Feynman path integral and the interaction picture

    International Nuclear Information System (INIS)

    Pugh, R.E.

    1986-01-01

    The role of interaction-picture fields in the construction of coherent states and in the derivation of the Feynman path integral for interacting scalar quantum fields is examined. Special attention is paid to the dependence of the integrand on the intermediate times and it is shown that the Feynman rules are valid prior to taking the limit wherein the number of intermediate times goes to infinity; thus, this number does not act as a cutoff in divergent amplitudes. Specific normalization factors are determined

  3. Technical Development Path for Gas Foil Bearings

    Science.gov (United States)

    Dellacorte, Christopher

    2016-01-01

    Foil gas bearings are in widespread commercial use in air cycle machines, turbocompressors and microturbine generators and are emerging in more challenging applications such as turbochargers, auxiliary power units and propulsion gas turbines. Though not well known, foil bearing technology is well over fifty years old. Recent technological developments indicate that their full potential has yet to be realized. This paper investigates the key technological developments that have characterized foil bearing advances. It is expected that a better understanding of foil gas bearing development path will aid in future development and progress towards more advanced applications.

  4. Ductile Damage Evolution and Strain Path Dependency

    International Nuclear Information System (INIS)

    Tasan, C. C.; Hoefnagels, J. M. P.; Peerlings, R. H. J.; Geers, M. G. D.; ten Horn, C. H. L. J.; Vegter, H.

    2007-01-01

    Forming limit diagrams are commonly used in sheet metal industry to define the safe forming regions. These diagrams are built to define the necking strains of sheet metals. However, with the rise in the popularity of advance high strength steels, ductile fracture through damage evolution has also emerged as an important parameter in the determination of limit strains. In this work, damage evolution in two different steels used in the automotive industry is examined to observe the relationship between damage evolution and the strain path that is followed during the forming operation

  5. Brexit na perspectiva do Path Dependency

    OpenAIRE

    Giorgio Romano Schutte

    2018-01-01

    Esta pesquisa analisou o Brexit em uma perspectiva histórica, focando a conturbada relação entre a Europa continental e o Reino Unido ao longo do século XX, com ênfase no período pós Segunda Guerra Mundial. Foi utilizado o conceito de path dependency para argumentar sobre o papel de fatores históricos e decisões do passado, embora tomados em outras circunstâncias, ainda com força para influenciar o presente, para entender o Brexit. A premissa básica que será apresentada no ensaio é que o Rein...

  6. On the simplified path integral on spheres

    Energy Technology Data Exchange (ETDEWEB)

    Bastianelli, Fiorenzo [Universita di Bologna, Dipartimento di Fisica ed Astronomia, Bologna (Italy); INFN, Sezione di Bologna, Bologna (Italy); Albert-Einstein-Institut, Max-Planck-Institut fuer Gravitationsphysik, Golm (Germany); Corradini, Olindo [Universita degli Studi di Modena e Reggio Emilia, Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Modena (Italy); INFN, Sezione di Bologna, Bologna (Italy); Albert-Einstein-Institut, Max-Planck-Institut fuer Gravitationsphysik, Golm (Germany)

    2017-11-15

    We have recently studied a simplified version of the path integral for a particle on a sphere, and more generally on maximally symmetric spaces, and proved that Riemann normal coordinates allow the use of a quadratic kinetic term in the particle action. The emerging linear sigma model contains a scalar effective potential that reproduces the effects of the curvature. We present here further details of the construction, and extend its perturbative evaluation to orders high enough to read off the type-A trace anomalies of a conformal scalar in dimensions d = 14 and d = 16. (orig.)

  7. Evaluation of Shortest Paths in Road Network

    Directory of Open Access Journals (Sweden)

    Farrukh Shehzad

    2009-06-01

    Full Text Available Optimization is a key factor in almost all the topics of operations research / management science and economics.The road networks can be optimized within different constraints like time, distance, cost and traffic running onthe roads.This study is based on optimization of real road network by means of distances. Two main objectives arepursued in this research: 1 road distances among different routes are composed in detail; 2 two standardalgorithms (Dijkstra and Floyd-Warshall algoritms are applied to optimize/minimize these distances for bothsingle-source and all-pairs shortest path problems.

  8. Path integral for multi-field inflation

    Energy Technology Data Exchange (ETDEWEB)

    Gong, Jinn-Ouk [Asia Pacific Center for Theoretical Physics, Pohang 37673 (Korea, Republic of); Department of Physics, Postech, Pohang 37673 (Korea, Republic of); Seo, Min-Seok [Center for Theoretical Physics of the Universe, Institute for Basic Science, 34051 Daejeon (Korea, Republic of); Shiu, Gary [Department of Physics, University of Wisconsin-Madison, Madison, WI 53706 (United States); Department of Physics & Institute for Advanced Study, Hong Kong University of Science and Technology, Clear Water Bay (Hong Kong)

    2016-07-20

    We develop the path integral formalism for studying cosmological perturbations in multi-field inflation, which is particularly well suited to study quantum theories with gauge symmetries such as diffeomorphism invariance. We formulate the gauge fixing conditions based on the Poisson brackets of the constraints, from which we derive two convenient gauges that are appropriate for multi-field inflation. We then adopt the in-in formalism to derive the most general expression for the power spectrum of the curvature perturbation including the corrections from the interactions of the curvature mode with other light degrees of freedom. We also discuss the contributions of the interactions to the bispectrum.

  9. UV laser long-path absorption spectroscopy

    Science.gov (United States)

    Dorn, Hans-Peter; Brauers, Theo; Neuroth, Rudolf

    1994-01-01

    Long path Differential Optical Absorption Spectroscopy (DOAS) using a picosecond UV laser as a light source was developed in our institute. Tropospheric OH radicals are measured by their rotational absorption lines around 308 nm. The spectra are obtained using a high resolution spectrograph. The detection system has been improved over the formerly used optomechanical scanning device by application of a photodiode array which increased the observed spectral range by a factor of 6 and which utilizes the light much more effectively leading to a considerable reduction of the measurement time. This technique provides direct measurements of OH because the signal is given by the product of the absorption coefficient and the OH concentration along the light path according to Lambert-Beers law. No calibration is needed. Since the integrated absorption coefficient is well known the accuracy of the measurement essentially depends on the extent to which the OH absorption pattern can be detected in the spectra. No interference by self generated OH radicals in the detection lightpath has been observed. The large bandwidth (greater than 0.15 nm) and the high spectral resolution (1.5 pm) allows absolute determination of interferences by other trace gas absorptions. The measurement error is directly accessible from the absorption-signal to baseline-noise ratio in the spectra. The applicability of the method strongly depends on visibility. Elevated concentrations of aerosols lead to considerable attenuation of the laser light which reduces the S/N-ratio. In the moderately polluted air of Julich, where we performed a number of OH measurement spectra. In addition absorption features of unidentified species were frequently detected. A quantitative deconvolution even of the known species is not easy to achieve and can leave residual structures in the spectra. Thus interferences usually increase the noise and deteriorate the OH detection sensitivity. Using diode arrays for sensitive

  10. Controlling the optical path length in turbid media using differential path-length spectroscopy: fiber diameter dependence

    NARCIS (Netherlands)

    Kaspers, O. P.; Sterenborg, H. J. C. M.; Amelink, A.

    2008-01-01

    We have characterized the path length for the differential path-length spectroscopy (DPS) fiber optic geometry for a wide range of optical properties and for fiber diameters ranging from 200 mu m to 1000 mu m. Phantom measurements show that the path length is nearly constant for scattering

  11. Clinical Wisdom among Proficient Nurses

    DEFF Research Database (Denmark)

    Uhrenfeldt, Lisbeth; Hall, Elisabeth

    2007-01-01

    This paperexamines clinical wisdom which has emerged from a broader study anout nurse managers´influence on proficient registered nurse turnover and retention. The purpose of the study was to increase understanding of proficient nurses´experience and clinical practice by giving voice to the nurses...

  12. Line-of-Sight Path Following for Dubins Paths with Adaptive Sideslip Compensation of Drift Forces

    DEFF Research Database (Denmark)

    Fossen, Thor Inge; Pettersen, Kristin Ytterstad; Galeazzi, Roberto

    2015-01-01

    guidance law is intended for maneuvering in the horizontal-plane at given speeds and typical applications are marine craft, autonomous underwater vehicles (AUVs), unmanned aerial vehicles (UAVs) as well as other vehicles and craft where the goal is to follow a predefined parametrized curve without time......-sight (LOS) guidance principle used by ancient navigators, which is here extended to path following of Dubins paths. The unknown sideslip angle is treated as a constant parameter, which is estimated using an adaptation law. The equilibrium points of the cross-track and parameter estimation errors are proven...

  13. Analysis of construction dynamic plan using fuzzy critical path method

    Directory of Open Access Journals (Sweden)

    Kurij Kazimir V.

    2014-01-01

    Full Text Available Critical Path Method (CPM technique has become widely recognized as valuable tool for the planning and scheduling large construction projects. The aim of this paper is to present an analytical method for finding the Critical Path in the precedence network diagram where the duration of each activity is represented by a trapezoidal fuzzy number. This Fuzzy Critical Path Method (FCPM uses a defuzzification formula for trapezoidal fuzzy number and applies it on the total float (slack time for each activity in the fuzzy precedence network to find the critical path. The method presented in this paper is very effective in determining the critical activities and finding the critical paths.

  14. Mapping Nursing Pathways

    Directory of Open Access Journals (Sweden)

    Melanie Birks

    2015-09-01

    Full Text Available Articulated education pathways between the vocational education training sector and universities provide opportunities for students wishing to progress to higher qualifications. Enrolled nurses seeking to advance their career in nursing can choose to enter baccalaureate degree programs through such alternative entry routes. Awarding of credit for prior studies is dependent on accurate assessment of the existing qualification against that which is sought. This study employed a modified Delphi method to inform the development of an evidence-based, structured approach to mapping the pathway from the nationally consistent training package of the Diploma of Nursing to the diversity of baccalaureate nursing programs across Australia. The findings of this study reflect the practical nature of the role of the enrolled nurse, particularly the greater emphasis placed on direct care activities as opposed to those related to professional development and the generation and use of evidence. These findings provide a valuable summative overview of the relationship between the Diploma of Nursing and the expectations of the registered nurse role.

  15. Some Thoughts on Nursing

    Directory of Open Access Journals (Sweden)

    Despina Sapountzi-Krepia

    2013-01-01

    Full Text Available The core concept of nursing is care; although caring is a universal concept and a component of the philosophies guiding the practice of all health and caring professions. Human beings learn to care bybeing cared by other people. In primitive societies there was not a clear distinction between healer and carer. However, caring, healing, and curing include a meaning of getting control over and expressing power upon people who are receiving care. That was a crucial point for the separation of caring from healing and curing. Nursing evolved from the mother's role and is frequently identified in people's perception more as a woman's duty than a job. Nursing continues to struggle to overcome the stereotypes held for centuries. However, as nursing is maturing as a science, an emphasis on the meaning of care and the approach of nursing as a purely caring science is apparent in many scientific nursing books and papers. Caring is evolving as a new paradigm for nursing, as the profession seeks its rightful place in the modern societies.

  16. REGISTERED NURSES' (RNs) PERCEPTION OF THE NURSING ...

    African Journals Online (AJOL)

    PROF. BARTH EKWEME

    More efforts are required by the professional association to negotiate better pay packages, benefits and incentives for nurses in ... improvement in patient outcome (Lowe, 2002), building management and ... significant relationship on RNs' perception of the ..... Therapy (2008), establishing and maintaining positive practice ...

  17. Improved initial guess for minimum energy path calculations

    International Nuclear Information System (INIS)

    Smidstrup, Søren; Pedersen, Andreas; Stokbro, Kurt; Jónsson, Hannes

    2014-01-01

    A method is presented for generating a good initial guess of a transition path between given initial and final states of a system without evaluation of the energy. An objective function surface is constructed using an interpolation of pairwise distances at each discretization point along the path and the nudged elastic band method then used to find an optimal path on this image dependent pair potential (IDPP) surface. This provides an initial path for the more computationally intensive calculations of a minimum energy path on an energy surface obtained, for example, by ab initio or density functional theory. The optimal path on the IDPP surface is significantly closer to a minimum energy path than a linear interpolation of the Cartesian coordinates and, therefore, reduces the number of iterations needed to reach convergence and averts divergence in the electronic structure calculations when atoms are brought too close to each other in the initial path. The method is illustrated with three examples: (1) rotation of a methyl group in an ethane molecule, (2) an exchange of atoms in an island on a crystal surface, and (3) an exchange of two Si-atoms in amorphous silicon. In all three cases, the computational effort in finding the minimum energy path with DFT was reduced by a factor ranging from 50% to an order of magnitude by using an IDPP path as the initial path. The time required for parallel computations was reduced even more because of load imbalance when linear interpolation of Cartesian coordinates was used

  18. Automated path length and M56 measurements at Jefferson Lab

    International Nuclear Information System (INIS)

    Hardy, D.; Tang, J.; Legg, R.

    1997-01-01

    Accurate measurement of path length and path length changes versus momentum (M 56 ) are critical for maintaining minimum beam energy spread in the CEBAF (Continuous Electron Beam Accelerator Facility) accelerator at the Thomas Jefferson National Accelerator Facility (Jefferson Lab). The relative path length for each circuit of the beam (1256m) must be equal within 1.5 degrees of 1497 MHz RF phase. A relative path length measurement is made by measuring the relative phases of RF signals from a cavity that is separately excited for each pass of a 4.2 μs pulsed beam. This method distinguishes the path length to less than 0.5 path length error. The development of a VME based automated measurement system for path length and M 56 has contributed to faster machine setup time and has the potential for use as a feedback parameter for automated control

  19. Path Dependency of High Pressure Phase Transformations

    Science.gov (United States)

    Cerreta, Ellen

    2017-06-01

    At high pressures titanium and zirconium are known to undergo a phase transformation from the hexagonal close packed (HCP), alpha-phase to the simple-hexagonal, omega-phase. Under conditions of shock loading, the high-pressure omega-phase can be retained upon release. It has been shown that temperature, peak shock stress, and texture can influence the transformation. Moreover, under these same loading conditions, plastic processes of slip and twinning are also affected by similar differences in the loading path. To understand this path dependency, in-situ velocimetry measurements along with post-mortem metallographic and neutron diffraction characterization of soft recovered specimens have been utilized to qualitatively understand the kinetics of transformation, quantify volume fraction of retained omega-phase and characterize the shocked alpha and omega-phases. Together the work described here can be utilized to map the non-equilibrium phase diagram for these metals and lend insight into the partitioning of plastic processes between phases during high pressure transformation. In collaboration with: Frank Addesssio, Curt Bronkhorst, Donald Brown, David Jones, Turab Lookman, Benjamin Morrow, Carl Trujillo, Los Alamos National Lab.; Juan Pablo Escobedo-Diaz, University of New South Wales; Paulo Rigg, Washington State University.

  20. Diversion path analysis handbook. Volume I. Methodology

    International Nuclear Information System (INIS)

    Maltese, M.D.K.; Goodwin, K.E.; Schleter, J.C.

    1976-10-01

    Diversion Path Analysis (DPA) is a procedure for analyzing internal controls of a facility in order to identify vulnerabilities to successful diversion of material by an adversary. The internal covert threat is addressed but the results are also applicable to the external overt threat. The diversion paths are identified. Complexity parameters include records alteration or falsification, multiple removals of sub-threshold quantities, collusion, and access authorization of the individual. Indicators, or data elements and information of significance to detection of unprevented theft, are identified by means of DPA. Indicator sensitivity is developed in terms of the threshold quantity, the elapsed time between removal and indication and the degree of localization of facility area and personnel given by the indicator. Evaluation of facility internal controls in light of these sensitivities defines the capability of interrupting identified adversary action sequences related to acquisition of material at fixed sites associated with the identified potential vulnerabilities. Corrective measures can, in many cases, also be prescribed for management consideration and action. DPA theory and concepts have been developing over the last several years, and initial field testing proved both the feasibility and practicality of the procedure. Follow-on implementation testing verified the ability of facility personnel to perform DPA

  1. Data Science in Radiology: A Path Forward.

    Science.gov (United States)

    Aerts, Hugo J W L

    2018-02-01

    Artificial intelligence (AI), especially deep learning, has the potential to fundamentally alter clinical radiology. AI algorithms, which excel in quantifying complex patterns in data, have shown remarkable progress in applications ranging from self-driving cars to speech recognition. The AI application within radiology, known as radiomics, can provide detailed quantifications of the radiographic characteristics of underlying tissues. This information can be used throughout the clinical care path to improve diagnosis and treatment planning, as well as assess treatment response. This tremendous potential for clinical translation has led to a vast increase in the number of research studies being conducted in the field, a number that is expected to rise sharply in the future. Many studies have reported robust and meaningful findings; however, a growing number also suffer from flawed experimental or analytic designs. Such errors could not only result in invalid discoveries, but also may lead others to perpetuate similar flaws in their own work. This perspective article aims to increase awareness of the issue, identify potential reasons why this is happening, and provide a path forward. Clin Cancer Res; 24(3); 532-4. ©2017 AACR . ©2017 American Association for Cancer Research.

  2. Robotic Online Path Planning on Point Cloud.

    Science.gov (United States)

    Liu, Ming

    2016-05-01

    This paper deals with the path-planning problem for mobile wheeled- or tracked-robot which drive in 2.5-D environments, where the traversable surface is usually considered as a 2-D-manifold embedded in a 3-D ambient space. Specially, we aim at solving the 2.5-D navigation problem using raw point cloud as input. The proposed method is independent of traditional surface parametrization or reconstruction methods, such as a meshing process, which generally has high-computational complexity. Instead, we utilize the output of 3-D tensor voting framework on the raw point clouds. The computation of tensor voting is accelerated by optimized implementation on graphics computation unit. Based on the tensor voting results, a novel local Riemannian metric is defined using the saliency components, which helps the modeling of the latent traversable surface. Using the proposed metric, we prove that the geodesic in the 3-D tensor space leads to rational path-planning results by experiments. Compared to traditional methods, the results reveal the advantages of the proposed method in terms of smoothing the robot maneuver while considering the minimum travel distance.

  3. Gibbon travel paths are goal oriented.

    Science.gov (United States)

    Asensio, Norberto; Brockelman, Warren Y; Malaivijitnond, Suchinda; Reichard, Ulrich H

    2011-05-01

    Remembering locations of food resources is critical for animal survival. Gibbons are territorial primates which regularly travel through small and stable home ranges in search of preferred, limited and patchily distributed resources (primarily ripe fruit). They are predicted to profit from an ability to memorize the spatial characteristics of their home range and may increase their foraging efficiency by using a 'cognitive map' either with Euclidean or with topological properties. We collected ranging and feeding data from 11 gibbon groups (Hylobates lar) to test their navigation skills and to better understand gibbons' 'spatial intelligence'. We calculated the locations at which significant travel direction changes occurred using the change-point direction test and found that these locations primarily coincided with preferred fruit sources. Within the limits of biologically realistic visibility distances observed, gibbon travel paths were more efficient in detecting known preferred food sources than a heuristic travel model based on straight travel paths in random directions. Because consecutive travel change-points were far from the gibbons' sight, planned movement between preferred food sources was the most parsimonious explanation for the observed travel patterns. Gibbon travel appears to connect preferred food sources as expected under the assumption of a good mental representation of the most relevant sources in a large-scale space.

  4. Flexible integration of path-planning capabilities

    Science.gov (United States)

    Stobie, Iain C.; Tambe, Milind; Rosenbloom, Paul S.

    1993-05-01

    Robots pursuing complex goals must plan paths according to several criteria of quality, including shortness, safety, speed and planning time. Many sources and kinds of knowledge, such as maps, procedures and perception, may be available or required. Both the quality criteria and sources of knowledge may vary widely over time, and in general they will interact. One approach to address this problem is to express all criteria and goals numerically in a single weighted graph, and then to search this graph to determine a path. Since this is problematic with symbolic or uncertain data and interacting criteria, we propose that what is needed instead is an integration of many kinds of planning capabilities. We describe a hybrid approach to integration, based on experiments with building simulated mobile robots using Soar, an integrated problem-solving and learning system. For flexibility, we have implemented a combination of internal planning, reactive capabilities and specialized tools. We illustrate how these components can complement each other's limitations and produce plans which integrate geometric and task knowledge.

  5. Laser enrichment: a new path to proliferation

    International Nuclear Information System (INIS)

    Casper, B.M.

    1977-01-01

    The use of lasers to obtain enriched uranium is an easier and cheaper method than methods currently in use. The immediate concern is that it could promote easy access to nuclear weapons by countries that do not presently have them. Mr. Casper feels that the U.S. government is working against itself; while the State Department is seeking to block one path to proliferation, ERDA laboratories are developing new technology that could open another. The proliferation implications have not been factored in a serious way into the decisions to proceed with this research. It is also clear that the United States does not now have a comprehensive policy that deals with all potentially important paths to proliferation, including laser enrichment. Mr. Casper states that there is still time to stop and consider whether laser enrichment should be developed, in light of its broader consequences. But this will not happen if the decisions are left exclusively in the hands of those promoting the technology, the author says. It is just this sort of situation that prompted the creation of several government institutions to provide independent assessments of new technologies. The Office of Technology Assessment, the Nuclear Regulatory Commission, and the Arms Control and Disarmament Agency all have the authority to intervene. Laser enrichment provides a good test of these institutions and of the viability of the concept of technology assessment. The status, benefits and risks, and the policy needed on laser research are discussed

  6. Quantum gravitation. The Feynman path integral approach

    International Nuclear Information System (INIS)

    Hamber, Herbert W.

    2009-01-01

    The book covers the theory of Quantum Gravitation from the point of view of Feynman path integrals. These provide a manifestly covariant approach in which fundamental quantum aspects of the theory such as radiative corrections and the renormalization group can be systematically and consistently addressed. The path integral method is suitable for both perturbative as well as non-perturbative studies, and is known to already provide a framework of choice for the theoretical investigation of non-abelian gauge theories, the basis for three of the four known fundamental forces in nature. The book thus provides a coherent outline of the present status of the theory gravity based on Feynman's formulation, with an emphasis on quantitative results. Topics are organized in such a way that the correspondence to similar methods and results in modern gauge theories becomes apparent. Covariant perturbation theory are developed using the full machinery of Feynman rules, gauge fixing, background methods and ghosts. The renormalization group for gravity and the existence of non-trivial ultraviolet fixed points are investigated, stressing a close correspondence with well understood statistical field theory models. Later the lattice formulation of gravity is presented as an essential tool towards an understanding of key features of the non-perturbative vacuum. The book ends with a discussion of contemporary issues in quantum cosmology such as scale dependent gravitational constants and quantum effects in the early universe. (orig.)

  7. Smartphone Addiction and Interpersonal Competence of Nursing Students

    Science.gov (United States)

    LEE, Sunhee; KIM, Hye-Jin; CHOI, Han-Gyo; YOO, Yang Sook

    2018-01-01

    Background: Interpersonal competence is an important capacity for nurses. Recently, the advent of smartphones has instigated considerable changes in daily life. Because smartphone has multiple functions, people tend to use them for numerous activities, often leading to addictive behavior. Methods: This cross-sectional study performed a detailed analysis of smartphone addiction subscales and social support related to interpersonal competence of nursing students. Overall, 324 college students were recruited at Catholic University in Seoul, Korea from Feb 2013 to Mar 2013. Participants completed a self-reported questionnaire, which included scales that measured smartphone addiction, social support, interpersonal competence, and general characteristics. Path analysis was used to evaluate structural relations between subscales of smartphone addictions, social support, and interpersonal competence. Results: The effect of cyberspace-oriented relationships and social support on interpersonal competence were 1.360 (P=.004) and 0.555 (Psmartphone addiction subscale, and social support were positively correlated with interpersonal competence of nursing students, while other smartphone addiction subscales were not related to nursing student interpersonal competence. Therefore, effective smartphone teaching methods be developed to enhance nursing student motivation

  8. Smartphone Addiction and Interpersonal Competence of Nursing Students.

    Science.gov (United States)

    Lee, Sunhee; Kim, Hye-Jin; Choi, Han-Gyo; Yoo, Yang Sook

    2018-03-01

    Interpersonal competence is an important capacity for nurses. Recently, the advent of smartphones has instigated considerable changes in daily life. Because smartphone has multiple functions, people tend to use them for numerous activities, often leading to addictive behavior. This cross-sectional study performed a detailed analysis of smartphone addiction subscales and social support related to interpersonal competence of nursing students. Overall, 324 college students were recruited at Catholic University in Seoul, Korea from Feb 2013 to Mar 2013. Participants completed a self-reported questionnaire, which included scales that measured smartphone addiction, social support, interpersonal competence, and general characteristics. Path analysis was used to evaluate structural relations between subscales of smartphone addictions, social support, and interpersonal competence. The effect of cyberspace-oriented relationships and social support on interpersonal competence were 1.360 ( P =.004) and 0.555 ( P smartphone addiction subscale, and social support were positively correlated with interpersonal competence of nursing students, while other smartphone addiction subscales were not related to nursing student interpersonal competence. Therefore, effective smartphone teaching methods be developed to enhance nursing student motivation.

  9. Presentation skills for nurses.

    Science.gov (United States)

    Foulkes, Mark

    2015-02-20

    This article emphasises the importance of effective presentation skills. Such skills allow nurses to share knowledge and expertise and to communicate clearly in a range of workplace scenarios. Nurses are increasingly being asked to present in formal and informal situations, such as conferences, poster presentations, job interviews, case reports and ward-based teaching. This article explores the principles underpinning the development of these skills, discusses the situations in which they could be applied and demonstrates how nurses might improve and develop as presenters.

  10. Classification systems in nursing : Formalizing nursing knowledge and implications for nursing information systems

    NARCIS (Netherlands)

    Goossen, WTF; Epping, PJMM; Abraham, IL

    The development of nursing information systems (NIS) is often hampered by the fact that nursing lacks a unified nursing terminology and classification system. Currently there exist various initiatives in this area. We address the question as to how current initiatives in the development of nursing

  11. Nursing Practice Environment and Registered Nurses' Job Satisfaction in Nursing Homes

    Science.gov (United States)

    Choi, JiSun; Flynn, Linda; Aiken, Linda H.

    2012-01-01

    Purpose: Recruiting and retaining registered nurses (RNs) in nursing homes is problematic, and little research is available to guide efforts to make nursing homes a more attractive practice environment for RNs. The purpose of this study was to examine relationships between aspects of the nursing practice environment and job satisfaction among RNs…

  12. Comparing nurse managers and nurses' perceptions of nurses' self-leadership during capacity building.

    Science.gov (United States)

    Jooste, Karien; Cairns, Lindi

    2014-05-01

    This paper compares the perceptions of nurse managers and nurses about self-leadership of professional nurses while taking ownership of capacity building during unit management. The Nursing Strategy for South Africa states that the competency of nurses is dependent upon factors that lead to capacity building. A quantitative design was followed by conducting a survey. The target population included nurse managers and professional nurses working at an academic public hospital in the Gauteng Province of South Africa. The findings indicate shortcomings in relation to advising professional nurses about self-direction while taking ownership of their daily pressures and stresses associated with unit management. Professional nurses should develop their confidence by focusing on their self-leadership strengths when managing a unit. Recommendations are made to promote self-leadership while taking ownership of nurses during capacity building of unit management. © 2014 John Wiley & Sons Ltd.

  13. Nursing home work practices and nursing assistants' job satisfaction.

    Science.gov (United States)

    Bishop, Christine E; Squillace, Marie R; Meagher, Jennifer; Anderson, Wayne L; Wiener, Joshua M

    2009-10-01

    To estimate the impact of nursing home work practices, specifically compensation and working conditions, on job satisfaction of nursing assistants employed in nursing homes. Data are from the 2004 National Nursing Assistant Survey, responses by the nursing assistants' employers to the 2004 National Nursing Home Survey, and county-level data from the Area Resource File. Multinomial logistic regression was used to estimate effects of compensation and working conditions on nursing assistants' overall job satisfaction, controlling for personal characteristics and local labor market characteristics. Wages, benefits, and job demands, measured by the ratio of nursing assistant hours per resident day, were associated with job satisfaction. Consistent with previous studies, job satisfaction was greater when nursing assistants felt respected and valued by their employers and had good relationships with supervisors. Nursing assistants were more satisfied when they had enough time to complete their work, when their work was challenging, when they were not subject to mandatory overtime, and where food was not delivered to residents on trays. This is the first investigation of nursing assistant job satisfaction using a nationally representative sample of nursing assistants matched to information about their employing nursing homes. The findings corroborate results of previous studies in showing that compensation and working conditions that provide respect, good relationships with supervisors, and better staffing levels are important to nursing assistant job satisfaction.

  14. A suitable job?: A qualitative study of becoming a nurse in the context of a globalizing profession in India.

    Science.gov (United States)

    Johnson, Sonali E; Green, Judith; Maben, Jill

    2014-05-01

    Research on Indian nurses has focused on their participation as global migrant workers for whom opportunities abroad act as an incentive for many to migrate overseas. However, little is known about the careers of Indian nurses, or the impact of a globalized health care market on nurses who remain and on the profession itself in India. To explore nurses' accounts of entry into nursing in the context of the globalisation of the nursing profession in India, and the salience of 'migration' for nurses' individual careers. Qualitative interview study (n=56). The study drew on interviews with 56 nurses from six sites in Bangalore, India. These included two government hospitals, two private hospitals, a Christian mission hospital, a private outpatient clinic and two private nursing colleges. Participants were selected purposively to include nurses from Christian and Hindu backgrounds, a range of home States, ages and seniority and to deliberately over-recruit (rare) male nurses. Interviews covered how and why nurses entered nursing, their training and career paths to date, plans for the future, their experiences of providing nursing care and attitudes towards migration. Data analysis drew on grounded theory methods. Nursing is traditionally seen as a viable career particularly for women from Christian communities in India, where it has created inter-generational 'nurse families'. In a globalizing India, nursing is becoming a job 'with prospects' transcending traditional caste, class and gender boundaries. Almost all nurses interviewed who intended seeking overseas employment envisaged migration as a short term option to satisfy career objectives - increased knowledge, skills and economic rewards - that could result in long-term professional and social status gains 'back home' in India. For others, migration was not part of their career plan: yet the increases in status that migration possibilities had brought were crucial to framing nursing as a 'suitable job' for a

  15. Quantum circuit dynamics via path integrals: Is there a classical action for discrete-time paths?

    International Nuclear Information System (INIS)

    Penney, Mark D; Koh, Dax Enshan; Spekkens, Robert W

    2017-01-01

    It is straightforward to compute the transition amplitudes of a quantum circuit using the sum-over-paths methodology when the gates in the circuit are balanced, where a balanced gate is one for which all non-zero transition amplitudes are of equal magnitude. Here we consider the question of whether, for such circuits, the relative phases of different discrete-time paths through the configuration space can be defined in terms of a classical action, as they are for continuous-time paths. We show how to do so for certain kinds of quantum circuits, namely, Clifford circuits where the elementary systems are continuous-variable systems or discrete systems of odd-prime dimension. These types of circuit are distinguished by having phase-space representations that serve to define their classical counterparts. For discrete systems, the phase-space coordinates are also discrete variables. We show that for each gate in the generating set, one can associate a symplectomorphism on the phase-space and to each of these one can associate a generating function, defined on two copies of the configuration space. For discrete systems, the latter association is achieved using tools from algebraic geometry. Finally, we show that if the action functional for a discrete-time path through a sequence of gates is defined using the sum of the corresponding generating functions, then it yields the correct relative phases for the path-sum expression. These results are likely to be relevant for quantizing physical theories where time is fundamentally discrete, characterizing the classical limit of discrete-time quantum dynamics, and proving complexity results for quantum circuits. (paper)

  16. Quantum circuit dynamics via path integrals: Is there a classical action for discrete-time paths?

    Science.gov (United States)

    Penney, Mark D.; Enshan Koh, Dax; Spekkens, Robert W.

    2017-07-01

    It is straightforward to compute the transition amplitudes of a quantum circuit using the sum-over-paths methodology when the gates in the circuit are balanced, where a balanced gate is one for which all non-zero transition amplitudes are of equal magnitude. Here we consider the question of whether, for such circuits, the relative phases of different discrete-time paths through the configuration space can be defined in terms of a classical action, as they are for continuous-time paths. We show how to do so for certain kinds of quantum circuits, namely, Clifford circuits where the elementary systems are continuous-variable systems or discrete systems of odd-prime dimension. These types of circuit are distinguished by having phase-space representations that serve to define their classical counterparts. For discrete systems, the phase-space coordinates are also discrete variables. We show that for each gate in the generating set, one can associate a symplectomorphism on the phase-space and to each of these one can associate a generating function, defined on two copies of the configuration space. For discrete systems, the latter association is achieved using tools from algebraic geometry. Finally, we show that if the action functional for a discrete-time path through a sequence of gates is defined using the sum of the corresponding generating functions, then it yields the correct relative phases for the path-sum expression. These results are likely to be relevant for quantizing physical theories where time is fundamentally discrete, characterizing the classical limit of discrete-time quantum dynamics, and proving complexity results for quantum circuits.

  17. Nursing education and learning

    DEFF Research Database (Denmark)

    Sangild Stølen, Karen Marie

    Background: Learning professional skills in the clinic is central to the acquisition of professional competences for future nurses. There are no clear vision of how learning takes place in the clinic and the question is how education in the clinic may lead to the professional skills that enable...... future nurses to take care for patients. Design and setting: The project Learning in Practice was accomplished from 2011 to early 2013, in collaboration between educations of nursing and educational theory educations at UCC North Zealand. The results in this paper is related to the examination...... of the nurse education only. The examination is based on four non-participating observations, four participating observations and three focus group interviews, respectively, four students, four clinical supervisors and four teachers . The clinical context was local hospitals. The data were analyzed...

  18. Nursing Home Data Compendium

    Data.gov (United States)

    U.S. Department of Health & Human Services — The compendium contains figures and tables presenting data on all Medicare- and Medicaid-certified nursing homes in the United States as well as the residents in...

  19. [Burnout in nursing residents].

    Science.gov (United States)

    Franco, Gianfábio Pimentel; de Barros, Alba Lúcia Bottura Leite; Nogueira-Martins, Luiz Antônio; Zeitoun, Sandra Salloum

    2011-03-01

    Nursing residents may experience physical and emotional exhaustion from the daily life of attending the Program. The aim of this study was to determine the Burnout incidence among Nursing Residents. An investigative, descriptive, analytical, longitudinal-prospective study was conducted with 16 Residents over two years. The Maslach Burnout Inventory was used, translated and validated for Brazil, as well as a sociodemographic/occupational data tool. Of all residents, 17.2% showed high rates in Emotional Exhaustion and Depersonalization; 18.8% showed impaired commitment in Personal Accomplishment, 75% of which belonged to specialty areas, such as Emergency Nursing, Adult and Pediatric Intensive Care. Age and specialty area were positively correlated with Personal Accomplishment. One of the Residents was identified with changes in three subscales of the Maslach Burnout Inventory, thus characterized as a Burnout Syndrome patient. Nursing Residents have profiles of disease. Knowing these factors can minimize health risks of these workers.

  20. Skilled Nursing Facility PPS

    Data.gov (United States)

    U.S. Department of Health & Human Services — Section 4432(a) of the Balanced Budget Act (BBA) of 1997 modified how payment is made for Medicare skilled nursing facility (SNF) services. Effective with cost...