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Sample records for polish nurses strike

  1. Strike action by nurses in South Africa: A value clarification

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    Marie Muller

    2001-09-01

    Full Text Available The Labour Relations Act (South Africa, 1991 made provision for protected strike action by employees, subject to certain conditions, procedures and negotiated agreements. This led to the removal of the strike clause in the Nursing Act (South Africa, 1992. The labour rights of all citizens are entrenched in the Constitution of the country (South Africa, 1996. Participation in strike action by the nurse/ midwife, regardless of the legal requirements and specifications, does, however, pose an ethical question. It is therefore necessary to conduct a value clarification on strike action by nurses in South Africa. The purpose of this research is to explore and describe the perceived values of participants from an accessible population on this phenomenon. A qualitative, exploratory and descriptive research design was deployed. The perceived values of nurses on strike action were collected by means of an openended questionnaire/sketch. Over a period of three years a purposive and convenient sampling method was used, involving all the enrolled post basic nursing/midwifery students/ learners at a particular Nursing Education Institution. The justification of the sample was further enhanced by also collecting data on the participants’ age and provincial distribution location. Although a 63% sample realisation (of the accessible population was achieved, this represents only 1,5% of the registered nursing/midwifery population in the country. A descriptive analysis of the participants’ age and provincial distribution was undertaken, as well as a content analysis of their perceived values on strike action. The mean age of the participants was 48 years, which could be attributed to the fact that most of them were enrolled for a post-basic Diploma in Community Nursing Science. Most of the responses (52,7% were against strike action and 32,5% supported strike action by nurses as a constitutional and legal right. A fairly substantial number of participants (14

  2. Scope of Nursing Care in Polish Intensive Care Units

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    Mariusz Wysokiński

    2013-01-01

    Full Text Available Introduction. The TISS-28 scale, which may be used for nursing staff scheduling in ICU, does not reflect the complete scope of nursing resulting from varied cultural and organizational conditions of individual systems of health care. Aim. The objective of the study was an attempt to provide an answer to the question what scope of nursing care provided by Polish nurses in ICU does the TISS-28 scale reflect? Material and Methods. The methods of working time measurement were used in the study. For the needs of the study, 252 hours of continuous observation (day-long observation and 3.697 time-schedule measurements were carried out. Results. The total nursing time was 4125.79 min. (68.76 hours, that is, 60.15% of the total working time of Polish nurses during the period analyzed. Based on the median test, the difference was observed on the level of χ2=16945.8, P<0.001 between the nurses’ workload resulting from performance of activities qualified into the TISS-28 scale and load resulting from performance of interventions within the scopes of care not considered in this scale in Polish ICUs. Conclusions. The original version of the TISS-28 scale does not fully reflect the workload among Polish nurses employed in ICUs.

  3. [Physiological changes and related nursing care issues during hunger strike].

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    Hsieh, Yeu-Shan; Chen, Shiu-Lien

    2005-08-01

    The use of hunger strike as a tool to assert grievances has been around for ages and has occasionally happened in the world. Hunger strikers' motives may differ, but their tool is the same--the voluntary refusal of food. Fasting not only results in body weight loss, but also in physiological and neurological function changes, and, of course, it may even threaten life. The health care of hunger strikers is complex. It involves medical staff, medical ethics and guidance for the management of the hunger strikers. Improper medical management may not only undermine the hunger striker's dignity but also risk further damage to his or her health. By understanding hunger strikers' physiological changes and related ethical issues, therefore, we aim to identify appropriate forms of nursing care management and guidance for the care of hunger strikers.

  4. Evaluation of chosen determinants of the positive practice environments (PPE at Polish nursing wards

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    Dorota Kilańska

    2016-04-01

    Full Text Available Background: At many Polish hospitals, insufficient attention is given to positive work environment. In many cases nurses, similarly to the representatives of other professional groups, are not provided with facilities or tools to perform their professional tasks in safe conditions. The aspects of recruitment and retention of employees are often ignored. The aim of this study has been to assess the chosen determinants of work environment of nurses in Poland using the concept of the Positive Practice Environments (PPE. Material and Methods: The survey was carried out from 2008 to 2011 among 1049 nursing students of 3 randomly selected public medical universities that provided nursing education at the graduate level of the Master of Science. All the people qualified for the study group were practising nurses or midwives. The Polish Nursing Association coordinated the project, obtained the tool, translated it and adjusted it to the Polish conditions. The areas covered in the survey were: a place of employment, selected physical and social elements influencing the work conditions, and biographical information. Results: Access to as many as 8 factors identified as attributes of friendly environments was found unsatisfactory by over 50% of the nurses. For the purpose of objective assessment, the results were compared with the results obtained in the group of nurses in England. Conclusions: The majority of the surveyed nurses were not satisfied with their work environments. Polish nurse managers should ensure that aspects of recognized attributes of friendly, positive practice environments for nurses are established to support nurses’ satisfaction as a pre-condition for patients’ safety. Med Pr 2016;67(1:11–19

  5. Care around birth, infant and mother health and maternal health investments - Evidence from a nurse strike.

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    Kronborg, Hanne; Sievertsen, Hans Henrik; Wüst, Miriam

    2016-02-01

    Care around birth may impact child and mother health and parental health investments. We exploit the 2008 national strike among Danish nurses to identify the effects of care around birth on infant and mother health (proxied by health care usage) and maternal investments in the health of their newborns. We use administrative data from the population register on 39,810 Danish births in the years 2007-2010 and complementary survey and municipal administrative data on 8288 births in the years 2007-2009 in a differences-in-differences framework. We show that the strike reduced the number of mothers' prenatal midwife consultations, their length of hospital stay at birth, and the number of home visits by trained nurses after hospital discharge. We find that this reduction in care around birth increased the number of child and mother general practitioner (GP) contacts in the first month. As we do not find strong effects of strike exposure on infant and mother GP contacts in the longer run, this result suggests that parents substitute one type of care for another. While we lack power to identify the effects of care around birth on hospital readmissions and diagnoses, our results for maternal health investments indicate that strike-exposed mothers-especially those who lacked postnatal early home visits-are less likely to exclusively breastfeed their child at four months. Thus reduced care around birth may have persistent effects on treated children through its impact on parental investments. Copyright © 2016 Elsevier Ltd. All rights reserved.

  6. [Assessment of the Polish occupational medicine service (oms) system made by OMS nurses].

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    Sakowski, Piotr

    2012-01-01

    This paper presents the results of an assessment of the Polish occupational medicine service (OMS) system made by OMS nurses. The survey was carried out on a random group of OMS nurses. OMS nurses form a professional group comprised of rather experienced personnel. In the opinion of almost 70% of respondents the system guarantees good occupational heath care, whereas 20% took the opposite view. The great majority of respondents think that all employees have to undergo mandatory prophylactic examinations. The nurses have rather critical opinion about the legal regulations pertaining to occupational health care--their number and complexity, and also express negative opinion about the quality of cooperation with employers (who are contractors for OMS units). OMS nurses believe that prophylactic examinations are the strongest point of the system. They are often the only opportunity for establishing contact between an employee and a physician and learning about diseases he or she was previously unaware of. Although the general assessment of the OMS system is rather positive, it is not free of shortcomings. Improvements in such fields as legislation, financing of service, professional attitude towards responsibilities of the OMS staff, cooperation with employers (contractors) and primary health care units would undoubtedly result in even better assessment, and what is more important in better functioning of the Polish OMS system.

  7. Polish school nurses' knowledge of the first-aid in tooth avulsion of permanent teeth.

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    Baginska, Joanna; Rodakowska, Ewa; Milewski, Robert; Wilczynska-Borawska, Magdalena; Kierklo, Anna

    2016-03-09

    The frequency of dental trauma in schools is secondary only to accidents at home. The aim of this study was to evaluate the knowledge of first aid in the avulsion of permanent teeth presented by Polish school nurses from different areas. A cross-sectional study with the use of a structured self-administrative questionnaire was conducted in 2014 on school nurses working in randomly selected Polish provinces. The instrument consisted of demographic questions, questions referring to nurses' experience and training in dental trauma and questions checking knowledge of first-aid in the avulsion of permanent teeth. The maximum number of points to be scored was eight. Data were analyzed with the Kruskal-Wallis, the Mann-Whitney U and Chi(2) tests with the level of statistical significance at p nurses of which 70.1 % had experience with dental injuries and 45.7 % witnessed a tooth avulsion in pupils. 10.4 % nurses participated in training courses concerning tooth avulsion and 67.1 % of them independently broadened their knowledge. The knowledge of the first-aid management of an avulsed tooth was moderate (4.72 ± 1.95 points). 78.1 % of nurses chose a correct definition of the term of 'tooth avulsion'. Only 7.3 % of them were aware that the replantation could be conducted by any witness of an accident. Saline was most often chosen as a proper transport medium for an avulsed tooth (57.9 %), whereas 16.1 % of nurses indicated milk. 13.4 % of evaluated nurses showed readiness to conduct an immediate replantation. Most respondents preferred calling child's parents and advising them to bring the child to a dentist (63.4 %). The main factor influencing nurses' level of knowledge was self-education (p schools with sports classes (p = 0.0423) were positive determinants of improved knowledge. Nurses from large agglomerations had significantly lower knowledge (p = 0.005). The main source of information for self-education was the Internet. The evaluated nurses were in need of

  8. Job Demands, Engagement, and Turnover Intentions in Polish Nurses: The Role of Work-Family Interface.

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    Dåderman, Anna M; Basinska, Beata A

    2016-01-01

    Background: Poland has lower ratios of employed registered nurses per 1,000 inhabitants than the EU average. Polish nurses work under miserable conditions without assisting personnel, and they reconcile their professional demands with responsibilities for their families; 96% of them are women. Rationale/Aims: This study uses Hobfoll's conservation of resources (CORs) theory to explain the role of various resources in the improvement of work conditions in the nursing profession. Work-family conflict (WFC) and family work conflict (FWC) threaten to deplete nurses' resources. This paper set out to (1) examine the extent to which perceived job demands (workload and interpersonal conflicts at work) and engagement (vigor, dedication, and absorption) are associated with turnover intentions (the intention to leave the present workplace and the intention to leave the nursing profession); (2) attempt to determine whether levels of WFC and FWC moderate these associations. Design/Method: This study comprised 188 female registered nurses. The inclusion criterion was to live with a partner and/or have children. Results: WFC was moderately related to FWC. Hierarchical regression analyses showed that only high job demands and low vigor were significantly associated with turnover intentions. WFC was experienced more intensively than FWC. Job demands, vigor, dedication, and turnover intentions had a strong effect on WFC, while absorption had a strong effect on FWC. However, levels of WFC and FWC did not significantly moderate these associations. Originality/Conclusion: The study produces new knowledge by examining a constellation of job demands, work engagement and WFC, which reflect the management of personal resources. Results from such a constellation in nurses from countries with a post-transformational economic system have not previously been discussed in the light of COR theory. Most importantly, we conclude that WFC does not intensify turnover intentions.

  9. Job Demands, Engagement, and Turnover Intentions in Polish Nurses: The Role of Work-Family Interface

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    Anna Maria Dåderman

    2016-11-01

    Full Text Available Background: Poland has lower ratios of employed registered nurses per 1,000 inhabitants than the EU average. Polish nurses work under miserable conditions without assisting personnel, and they reconcile their professional demands with responsibilities for their families; 96% of them are women. Rationale/Aims: This study uses Hobfoll’s Conservation of Resources (COR theory to explain the role of various resources in the improvement of work conditions in the nursing profession. Work-family conflict (WFC and family-work conflict (FWC threaten to deplete nurses’ resources. This paper set out to (1 examine the extent to which perceived job demands (workload and interpersonal conflicts at work and engagement (vigour, dedication and absorption are associated with turnover intentions (the intention to leave the present workplace and the intention to leave the nursing profession; (2 attempt to determine whether levels of WFC and FWC moderate these associations. Design/Method: This study comprised 188 female registered nurses. The inclusion criterion was to live with a partner and/or have children. Results: WFC was moderately related to FWC. Hierarchical regression analyses showed that only high job demands and low vigour were significantly associated with turnover intentions. WFC was experienced more intensively than FWC. Job demands, vigour, dedication and turnover intentions had a strong effect on WFC, while absorption had a strong effect on FWC. However, levels of WFC and FWC did not significantly moderate these associations. Originality/Conclusion: The study produces new knowledge by examining a constellation of job demands, work engagement and WFC, which reflect the management of personal resources. Results from such a constellation in nurses from countries with a post-transformational economic system have not previously been discussed in the light of COR theory. Most importantly, we conclude that WFC does not intensify turnover intentions.

  10. [Attitudes of polish physicians towards extending competencies of nurses and midwives with respect to prescribing medicines].

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    Mazur, Nicole; Zarzeka, Aleksander; Dąbrowski, Filip; Panczyk, Mariusz; Gałązkowski, Robert; Gotlib, Joanna

    2017-01-01

    Due to the amendment of the Nurse and Midwife professions Act, since 1st of January 2016 Polish nurses and midwives with certain qualifications are able to prescribe medicines and referral for diagnostic tests. To analyse attitudes of physicians on new professional competencies of nurses and midwives regarding: prescribing medicines and referring patients for certain diagnostic tests. In the study took part 436 physicians (245 women, 193 man). The average age was 36,6 years old (min.: 21; max.: 76; SD: 11,65; median: 31). 274 people lived in a city with over 500 thousand citizens, 70 people - city below 100 thousand citizens, 54 people - city between 100-500 thousands citizens and 14 people lived in a country. Most of people lived in masovian district. Authors prepared and validated own questionnaire, which contained statements assessed in Likert scale (1-strongly disagree, 5-stronlgy agree). It contained 22 questions about opinions of new abilities of nurses and midwives. The questionnaire was sent three times to Regional Medical Chamber in Warsaw via an online questionnaire: https://docs.google.com/forms/d/1cxiaJFPxDVphByhBTk4gDIBsm6bQsxGLVXDK-RtpGnk/ The reliability of the questionnaire used was tested in a pilot study by the coefficient α-Cronbach, which amounted to 0.937. Due to the fact that the study was performed in a group of doctors they did not require the consent of the Bioethics Committee, of Medical University of Warsaw to carry them out. The results are presented using descriptive statistics, which were obtained through statistical analysis using Microsoft Excel and StatSoft Statistica 12.0 (license Medical University of Warsaw). 53% of doctors claim that the new powers do not improve patient care. 35% of respondents disagreed with the opinion that the new powers will raise the prestige of professional nurses and midwives. At the same time 49% believe that prescriptions for nurses and midwives reduce the responsibilities of doctors. Only 9% agreed

  11. Care around birth, infant and mother health and maternal health investments – Evidence from a nurse strike

    DEFF Research Database (Denmark)

    Kronborg, Hanne; Sievertsen, Hans Henrik; Wüst, Miriam

    2016-01-01

    Care around birth may impact child and mother health and parental health investments. We exploit the 2008 national strike among Danish nurses to identify the effects of care around birth on infant and mother health (proxied by health care usage) and maternal investments in the health...... not find strong effects of strike exposure on infant and mother GP contacts in the longer run, this result suggests that parents substitute one type of care for another. While we lack power to identify the effects of care around birth on hospital readmissions and diagnoses, our results for maternal health...... of their newborns. We use administrative data from the population register on 39,810 Danish births in the years 2007–2010 and complementary survey and municipal administrative data on 8288 births in the years 2007–2009 in a differences-in-differences framework. We show that the strike reduced the number of mothers...

  12. Prevalence of burnout in Polish anesthesiologists and anesthetist nursing professionals: A comparative non-randomized cross-sectional study.

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    Misiołek, Aleksandra; Gil-Monte, Pedro R; Misiołek, Hanna

    2017-03-01

    The purpose of the study was to assess the burnout levels in nurses ( N = 161) versus physicians ( N = 373). The levels of burnout were evaluated by the Polish adaptation of the Spanish Burnout Inventory (Cronbach's alpha > .70). High burnout level was found in 18.63 percent nurses and 12.06 percent anesthesiologists, and critical level in 3.74 percent nurses and 5.90 percent anesthetists. There were statistically significant differences in Burnout global score, Enthusiasm toward the job, Psychological exhaustion, and Indolence subscales between nurses and physicians. No significant differences were found between sexes in any variable.

  13. [Validation of the Polish version of The Authentic Leadership Questionnaire for the of evaluation purpose of nursing management staff in national hospital wards].

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    Sierpińska, Lidia

    2013-09-01

    The Authentic Leadership Questionnaire (ALQ) is a standardized research instrument for the evaluation of individual elements of leader's conduct which contribute to the authentic leadership. The application of this questionnaire in Polish conditions required to carry out the validation process. The aim of the study was to evaluate of validity and reliability of the Polish version of the American research instrument for the needs of evaluation of authenticity of leadership of the nursing management in Polish hospitals. The study covered 286 nurses (143 head nurses and 143 of their subordinates) employed in 45 hospitals in Poland. Theoretical validity of the instrument was evaluated using Fisher's transformation (r-Person correlation coefficient), while the criterion validity of the ALQ was evaluated using rho-Spearman correlation coefficient and the BOHIPSZO questionnaire. The reliability of the ALQ was assessed by means of the Cronbach-alpha coefficient. The ALQ questionnaire applied for the evaluation of authenticity of leadership of the nursing management in Polish hospital wards shows an acceptable theoretical and criterion validity and reliability (Cronbach-alpha coefficient 0.80). The Polish version of the ALQ is valid and reliable, and may be applied in studies concerning the evaluation of authenticity of leadership of the nursing management in Polish hospital wards.

  14. Wanda Ossowska (1912-2001) and Stanisława Leszczyńska (1896-1974): Polish nurses working under Nazi occupation.

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    Dobrowolska, Barbara; Hoch, Stefania; Jabkowska-Sochanska, Aniela; Benedict, Susan; Shields, Linda

    2011-11-01

    Poland was invaded by Nazi Germany on 1 September 1939 and World War II began on 3 September. Polish nurses have their place in this difficult history. In the first months of occupation, nurses focused on caring for wounded soldiers. In order to protect them from prisoner-of-war camps and execution, nurses sought safe havens for the wounded in private homes and transported them there. After their regular jobs, the nurses visited them, changed their dressings and provided them with civilian clothes so that soldiers could eventually escape. This paper describes the work of two of these nurses, Wanda Ossowska and Stanisława Leszczyńska. The first three authors (BD, SH, AJS) were nurses in Poland at that time and they present some of the information in this paper as primary source data.

  15. Factors affecting Polish nurses' willingness to recommend the hospital as a place of care.

    Science.gov (United States)

    Kózka, Maria; Brzostek, Tomasz; Cisek, Maria; Brzyski, Piotr; Przewoźniak, Lucyna; Gabryś, Teresa; Ogarek, Maria; Gajda, Krzysztof; Ksykiewicz-Dorota, Anna

    Nurses constitute the major professional group offering constant hospital patients' care. Willingness to recommend their hospital reflects confidence in the offered care, satisfaction and identification with the work place. The aim of the present study has been to investigate which elements of hospital environment and nurse personal related factors predict recommendation of the hospital as a place of care by employed nurses. Cross-sectional, correlation study was, based on 1723 self-reported, anonymous questionnaires of nurses working in 30 acute hospitals. Data was analyzed using the logistic regression model, with general estimation equations. About 25% of nurses were unwilling to recommend their hospital as the place of care. The odds ratio (OR) of the lack of willingness to recommend the hospital was related to assessment of patients' safety (OR = 0.28, 95% confidence interval (CI): 0.18-0.46, p = 0.00), decrease in the quality of patient care during the preceding year (OR = 0.62, 95% CI: 0.41-0.93, p = 0.02), overall work conditions (OR = 0.35, 95% CI: 0.22-0.57, p = 0.00), weak cooperation between nurses and physicians (OR = 0.37, 95% CI: 0.25-0.54, p = 0.00), poor work schedule flexibility (OR = 0.74, 95% CI: 0.55- 0.99, p = 0.04) and educational opportunities (OR = 0.71, 95% CI: 0.54-0.95, p = 0.02) and the level of nurses depersonalization (OR = 1.78, 95% CI: 1.18-1.68, p = 0.00). The hospital manager should consider strategies which improve patients' safety and the staff working conditions. Thanks to that they will also achieve better and more competitive image of the hospital in the local community. Med Pr 2016;67(4):447-454. This work is available in Open Access model and licensed under a CC BY-NC 3.0 PL license.

  16. [Self-assessment of tasks and roles of occupational medicine service (OMS) nurses in the Polish system of workers' health protection].

    Science.gov (United States)

    Sakowski, Piotr

    2010-01-01

    This paper presents the results of survey performed to find out how occupational medicine service (OMS) nurses assess their tasks and roles in the Polish system of workers' health protection. The survey was carried out in a random group of 200 OMS nurses. The survey showed that OMS nurses form-an experienced professional group. According to self-assessment they have an opportunity to use their competence in its full scope. Almost half of respondents agreed that in Poland the skills of OMS nurses are properly used. There are two reasons why certain tasks are not performed by OMS nurses, first, certain tasks are assigned to other persons in the unit; second, employers are sometimes not interested in those tasks or find them not necessary. The majority of nurses assess their knowledge and preparation to perform tasks relatively well, however they want to broaden their knowledge and improve their skills. OMS nurses play an important role in the Polish system of workers' health protection. They perform many tasks, which fall within the scope of OMS activities being currently implemented. Their competences are usually properly used. There is a need to convince employers that the scope of services provided by OMS units should be extended and adequately financed. This should result in the better use of OMS nurses' competences. Nurses are well educated and skilled to perform their jobs. Nevertheless, they feel the need to broaden their knowledge. Although the programs of specialization and qualification courses are rather comprehensive, nurses declare that some areas should be enriched with additional information.

  17. Attitudes toward euthanasia among Polish physicians, nurses and people who have no professional experience with the terminally ill.

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    Glebocka, A; Gawor, A; Ostrowski, F

    2013-01-01

    Euthanasia is an issue that generates an extensive social debate. Euthanasia is generally classified as either active or passive. The former is usually defined as taking specific steps to cause the patient's death, while the latter is described as withdrawal of medical treatment with the deliberate intention of bringing the patient's life to an end. The dispute on euthanasia involves a multitude of aspects including religious, legal, cultural, ethical, medical, and spiritual issues. The purpose of the present study was to examine the views of medical professionals toward the highly controversial issue of euthanasia. Accordingly, the research has been conducted among a group of Polish nurses and physicians working in Intensive Care and Oncology Units. Their views have been compared to those of the control group, which included the members of the general public, who do not work in medical profession. It was expected that the education and training and the day-to-day exposure to vegetative patients might influence the views of medical personnel concerning euthanasia. The research demonstrated that the members of all groups supported liberal views. Conservative views were not popular among the respondents. The physicians turned out to be the least conservative group. The survey has also demonstrated that there is a broad consensus that informational and psychological support should be provided to terminally ill patients and their relatives. The attitude toward the passive form of euthanasia seems to have broad support. In particular doctors tend to approve this form of bringing a terminally ill patient's life to an end. The active euthanasia is regarded with much less favor and physicians, in particular, appear to disapprove of it.

  18. Striking Clepsydras

    Science.gov (United States)

    Nam, Moon-Hyon

    The term "Striking Clepsydra" is a shortened translation of the Korean name Jagyeongnu (自擊漏, tzu-chi lou in Chinese, literally "automatic-striking water-clock"). It was given to the two monumental time-keeping installations built by chief court engineer Yeong-sil Jang in AD 1432-38 under King Sejong (r. AD 1418-50) of the Joseon dynasty (1392-1910) in Seoul. These were housed separately in the Gyeongbok palace complex as major installations of the Royal Observatory Ganuidae equipped during 1432-38. One was the Striking Palace Clepsydra Borugangnu that was employed as the standard time-keeper from 1434, and the other was the Striking Heavenly Clepsydra Heumgyeonggangnu that was put into use not only as the symbol of Neo-Confucian ideology from 1438, but also as a demonstrational orrery and time-keeper. These were restored several times through the dynasty after loss by fires and warfare, and clepsydra-making technologies were succeeded by the development of armillary clocks in 1669. The National Palace Museum of Korea recreated the 1434 Striking Palace Clepsydra of King Sejong, and the replica was installed for permanent exhibition from November 2007.

  19. Polish visit

    CERN Document Server

    2003-01-01

    On 6 October, Professor Michal Kleiber, Polish Minister of Science and Chairman of the State Committee for Scientific Research, visited CERN and met both the current and designated Director General, Luciano Maiani and Robert Aymar. Professor Kleiber visited the CMS and ATLAS detector assembly halls, the underground cavern for ATLAS, and the LHC superconducting magnet string test hall. Michal Kleiber (left), Polish minister of science and Jan Krolikowski, scientist at Warsaw University and working for CMS, who shows the prototypes of the Muon Trigger board of CMS.

  20. Striking a Balance: A Qualitative Study of Next of Kin Participation in the Care of Older Persons in Nursing Homes in Sweden

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    Birgitta Wallerstedt

    2018-05-01

    Full Text Available Most of the care in nursing homes is palliative in nature, as it is the oldest and the frailest people who live in nursing homes. The aim of this study was to explore next of kin’s experiences of participating in the care of older persons at nursing homes. A qualitative design was used, based on semi-structured interviews with 40 next of kin, and analyzed using qualitative content analysis. An overarching theme emerged, a balancing act consisting of three categories: (1 visiting the nursing home; (2 building and maintaining relationships; and (3 gathering and conveying information. The next of kin have to balance their own responsibility for the older person’s wellbeing by taking part in their care and their need to leave the responsibility to the staff due to critical health conditions. The next of kin wanted to participate in care meetings and conversations, not only in practical issues. The findings indicate the need to improve the next of kin’s participation in the care as an equal partner. Increased knowledge about palliative care and decision-making of limiting life-prolonging treatment may lead to a higher quality of care.

  1. Lightning Often Strikes Twice

    Science.gov (United States)

    2005-01-01

    Contrary to popular misconception, lightning often strikes the same place twice. Certain conditions are just ripe for a bolt of electricity to come zapping down; and a lightning strike is powerful enough to do a lot of damage wherever it hits. NASA created the Accurate Location of Lightning Strikes technology to determine the ground strike point of lightning and prevent electrical damage in the immediate vicinity of the Space Shuttle launch pads at Kennedy Space Center. The area surrounding the launch pads is enmeshed in a network of electrical wires and components, and electronic equipment is highly susceptible to lightning strike damage. The accurate knowledge of the striking point is important so that crews can determine which equipment or system needs to be retested following a strike. Accurate to within a few yards, this technology can locate a lightning strike in the perimeter of the launch pad. As an added bonus, the engineers, then knowing where the lightning struck, can adjust the variables that may be attracting the lightning, to create a zone that will be less susceptible to future strikes.

  2. Options with Extreme Strikes

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    Lingjiong Zhu

    2015-07-01

    Full Text Available In this short paper, we study the asymptotics for the price of call options for very large strikes and put options for very small strikes. The stock price is assumed to follow the Black–Scholes models. We analyze European, Asian, American, Parisian and perpetual options and conclude that the tail asymptotics for these option types fall into four scenarios.

  3. Functional Median Polish

    KAUST Repository

    Sun, Ying; Genton, Marc G.

    2012-01-01

    polish is demonstrated by comparing its performance with the traditional functional ANOVA fitted by means under different outlier models in simulation studies. The functional median polish is illustrated on various applications in climate science

  4. Cancer morbidity among polishers.

    Science.gov (United States)

    Järvholm, B; Thiringer, G; Axelson, O

    1982-01-01

    The mortality pattern among 86 men was determined to investigate the possible hazards of polishing steel. The men had polished steel with polishing paste for at least five years. The polishing pastes had contained tallow, beeswax, carnauba wax, alundum, carborundum, ferric oxide, and chalk. A total of 18 men had died compared with 13.3 expected. Four had died of stomach cancer compared with 0.44 expected (p less than 0.005). The mortality for other causes of death was not increased. The study does not permit any definite conclusion but indicates a possible cancer hazard among polishers. PMID:7066237

  5. Health Information in Polish (polski)

    Science.gov (United States)

    ... Tools You Are Here: Home → Multiple Languages → Polish (polski) URL of this page: https://medlineplus.gov/languages/polish.html Health Information in Polish (polski) To use the sharing features on this page, ...

  6. Polish Cartographical Review

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    Nedjeljko Frančula

    2017-07-01

    Full Text Available The Polish Cartographical Review (PCR journal has been published in English four times a year since 2015. The journal is in open access and it is published by De Gruyter Open. It is edited by Polish scientists in collaboration with international experts.

  7. Algab õppus "Saber Strike"

    Index Scriptorium Estoniae

    2014-01-01

    Täna algab Eestis, Lätis ja Leedus Ameerika Ühendriikide Euroopa väekoondise õppus "Saber Strike", mille eesmärk on maaväeüksuste koostöö harjutamine. Õppusest võtab osa üle 2000 kaitseväelase Baltimaadest, USAst, Ühendkuningriigist, Taanist, Norrast, Soomest ja Saksamaalt. Eestist osaleb õppusel ligi 400 kaitseväelast

  8. The Poster Strikes Back

    DEFF Research Database (Denmark)

    Christensen, Line Hjorth

    2005-01-01

    The paper discusses fundamental issues in relation to placing graphic design in locations such as museums of decorative arts and living history museums. Based on my Ph.D. project on British commercial posters of the interwar years and approached from a combined perspective of museology, semiotics...... and design history, I argue that the poster during the interwar years inhabits a new active position. By exploiting and challenging the commercial and aesthetic paradox out of which it arose, the poster ‘strikes back' as a museologized, exhibited object. Rather than being absorbed into the city swirl...

  9. Global strike hypersonic weapons

    Science.gov (United States)

    Lewis, Mark J.

    2017-11-01

    Beginning in the 1940's, the United States has pursued the development of hypersonic technologies, enabling atmospheric flight in excess of five times the speed of sound. Hypersonic flight has application to a range of military and civilian applications, including commercial transport, space access, and various weapons and sensing platforms. A number of flight tests of hypersonic vehicles have been conducted by countries around the world, including the United States, Russia, and China, that could lead the way to future hypersonic global strike weapon systems. These weapons would be especially effective at penetrating conventional defenses, and could pose a significant risk to national security.

  10. Polish polar research (outline

    Directory of Open Access Journals (Sweden)

    Krzysztof Ludwik Birkenmajer

    2017-12-01

    Full Text Available The article describes Polish research and discoveries in the Arctic and the Antarctic since the 19th century. The author is a geologist and since 1956 has been engaged in scientific field research on Spitsbergen, Greenland and Antarctica (23 expeditions. For many years chairman of the Committee on Polar Research of the Polish Academy of Sciences, he is now its Honorary Chairman.

  11. Opinions of Old Age According to Residents of Polish Public Nursing Homes and Members of the Universities of the Third Age.

    Science.gov (United States)

    Cybulski, Mateusz; Krajewska-Kułak, Elżbieta; Jamiołkowski, Jacek

    2016-01-01

    Statistical data from the turn of the 21st century shows a significant increase in the average human life span and, what follows, an extension of old age. The aim of this study was to become familiar with the opinions submitted by respondents regarding aging and old age, health problems connected with aging and preferred health behaviors. The research was conducted between January 3rd 2013 and February 15th 2014 on a group of 200 residents of public nursing homes and 200 members of the University of the Third Age using a questionnaire created by the authors. Forty-two point five per cent of the residents of PNHs and 58.0% of the members of UTAs were of the opinion that old age can be a successful period of life. Sixty-one percent of all participants stated that the elderly are needed in society. According to respondents, the factor which was most important in delaying aging was an active lifestyle (80.0% of residents of PNH vs. 90.0% of UTA members). Perceptions of elderly people by the seniors are different, complex and multidimensional. The perception of elderly people to society can variously affect (positively or negatively) quality of life in this age group. The results of the study showed small differences between the residents of public nursing homes and students of Universities of the Third Age in the perception of old age. There is a need to integrate seniors with younger generations in order to eliminate the stereotypes prevailing in society about older people.

  12. Functional Median Polish

    KAUST Repository

    Sun, Ying

    2012-08-03

    This article proposes functional median polish, an extension of univariate median polish, for one-way and two-way functional analysis of variance (ANOVA). The functional median polish estimates the functional grand effect and functional main factor effects based on functional medians in an additive functional ANOVA model assuming no interaction among factors. A functional rank test is used to assess whether the functional main factor effects are significant. The robustness of the functional median polish is demonstrated by comparing its performance with the traditional functional ANOVA fitted by means under different outlier models in simulation studies. The functional median polish is illustrated on various applications in climate science, including one-way and two-way ANOVA when functional data are either curves or images. Specifically, Canadian temperature data, U. S. precipitation observations and outputs of global and regional climate models are considered, which can facilitate the research on the close link between local climate and the occurrence or severity of some diseases and other threats to human health. © 2012 International Biometric Society.

  13. Polish Higher Education: Intersectoral Distinctiveness

    Science.gov (United States)

    Musial, Joanna

    2014-01-01

    This study analyzes degrees of differences between the private and public sectors of Polish higher education. It finds them to be strong: Polish private institutions function very differently from Polish public institutions and these differences correspond with those found in the literature on higher education elsewhere in the world. Polish…

  14. Continental United States Hurricane Strikes

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Continental U.S. Hurricane Strikes Poster is our most popular poster which is updated annually. The poster includes all hurricanes that affected the U.S. since...

  15. Polish Semantic Parser

    Directory of Open Access Journals (Sweden)

    Agnieszka Grudzinska

    2000-01-01

    Full Text Available Amount of information transferred by computers grows very rapidly thus outgrowing the average man's capability of reception. It implies computer programs increase in the demand for which would be able to perform an introductory classitication or even selection of information directed to a particular receiver. Due to the complexity of the problem, we restricted it to understanding short newspaper notes. Among many conceptions formulated so far, the conceptual dependency worked out by Roger Schank has been chosen. It is a formal language of description of the semantics of pronouncement integrated with a text understanding algorithm. Substantial part of each text transformation system is a semantic parser of the Polish language. It is a module, which as the first and the only one has an access to the text in the Polish language. lt plays the role of an element, which finds relations between words of the Polish language and the formal registration. It translates sentences written in the language used by people into the language theory. The presented structure of knowledge units and the shape of understanding process algorithms are universal by virtue of the theory. On the other hand the defined knowledge units and the rules used in the algorithms ure only examples because they are constructed in order to understand short newspaper notes.

  16. [Physicians' strikes--ethical considerations].

    Science.gov (United States)

    Glick, Shimon; Schwarzfuchs, Dan

    2012-01-01

    Strikes in general represent a solution based on a form of coercion. Historically, the striker caused direct damage to his employer, who was responsible for the perceived unfair treatment of the employee. In the case of strikes in the public sector, the employer is generally not harmed, but innocent citizens suffer in order to pressure the government agencies, a questionable practice from an ethical viewpoint. Physicians' strikes have more serious ethical problems. They cause suffering and death to innocent citizens. They violate the ethical codes to which physicians have committed themselves as professionals, and they seriously impair the trust of the public in physicians. Better and more ethical ways to provide fair compensation for physicians must be employed, perhaps like those used for judges and members of the IDF.

  17. Miners' strike 1984-85

    Energy Technology Data Exchange (ETDEWEB)

    Brown, L; Salter, S [comps.

    1985-01-01

    References relating to the 1984-85 UK miners strike are listed under the following subject headings: events and analysis - a chronological record; short term effects - coal stocks and supplies, electricity supplies, financial, industrial and economic; the miners and their leadership; social aspects - civil liberties, media coverage, mining communities, picketing, policing, the future; pit closures. 240 references.

  18. [Lysenkoism in Polish botany].

    Science.gov (United States)

    Köhler, Piotr

    2008-01-01

    Lysenkoism in Poland was never an autonomous phenomenon. The whole array of reasons for which it appeared in Polish science would require a separate study--here it only needs to be pointed out that the major reasons included terror on the part of the security service, lawlessness, the ubiquitous atmosphere of intimidation and terror, censorship, the diminishing sphere of civil liberties, political show trials, propaganda and denunciations. An important role in facilitating the introduction of Lysenkoism was played also by the reorganization of science after World War Two, the isolation of Polish science from science in the West, as well as the damage it had suffered during the war. At first, Lysenkoism was promoted in Poland by a small group of enthusiastic and uncritical proponents. A overview of the events connected with the ten years of Lysenkoism in Poland (end of 1948--beginning of 1958) shows a two-tier picture of how the 'idea' was propagated. The first tier consisted in the activities of the Association of Marxist Naturalists [Koło Przyrodników-Marksistów], which it engaged in since the end of 1948. The Association was later transformed into a Union of Marxist Naturalists, and this in turn merged, in 1952, with the Copernican Society of Polish Naturalists [Polskie Towarzystwo Przyrodników im. Kopernika]. It was that society which promoted Lysenkoism longest, until the end of 1956. The propaganda and training activities of the circle and the society prepared ground for analogous activities of the newly formed Polish Academy of Science (PAN), which--since its very establishment in 1952--engaged in promoting Lysenkoism through its Second Division. These activities were aimed at naturalists, initially at those who were prominent scientists (eg. the conference at Kuźnice, 1950/1951), and then at those who were only starting their academic career (including national courses in new biology at Dziwnów, 1952, or Kortowo, 1953 and 1955). The end to promoting

  19. Polish Americans. Second, Revised Edition.

    Science.gov (United States)

    Lopata, Helen Znaniecka

    This book examines Polonia, the Polish ethnic community in America created by three giant waves of immigration between 1880 and 1990. The complicated history of this ethnic group is reflected in the lives of increasing numbers of Polish Americans, including recent immigrants brought by political and economic changes, as they achieve middle class…

  20. 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.

  1. Strikes in Serbia since 2000 to 2005

    OpenAIRE

    Novaković Nada

    2005-01-01

    In this article author deals with main characteristics of strikes in Serbia within the period 2000–2005. Analysis starts with thesis that strike is open class conflict within class divided society. Therefore strike is radical form of trade union struggle for workers rights. Main questions in the analysis were: on social structure as a background of strikes, on organizations and trade unions included in it, on effects of strikes in Serbia in the given period. Main thesis of the article is that...

  2. Respecting the right to strike

    CERN Multimedia

    Staff Association

    2015-01-01

    Since two years the representatives of the employers in the ILO, a tripartite multilateral body responsible for guaranteeing the correct application of an international labour code, try to weaken the global work regulations. On the occasion of the Global Day of Action for the right to strike at the invitation of the Geneva community of Union action (Communauté genevoise d’action syndicale) and the Swiss Trade Union Association (Union syndicale suisse) around noon on Wednesday 18th February some fifty staff representatives of international organizations gathered on the place des Nations in Geneva to reaffirm the importance of this fundamental right, too often flouted. A delegation of the CERN Staff Association was also present. In a short speech, the Staff Association said that, while being one of the fundamental human rights, to be efficient the right to strike must be used intelligently. It must be implemented taking into account the sensitivities of the professional environment and r...

  3. Polishing large NaCl windows on a continuous polisher

    International Nuclear Information System (INIS)

    Williamson, R.

    1979-01-01

    The Helios and Antares CO 2 fusion laser systems incorporate numerous large sodium chloride windows. These must be refinished periodically, making necessary a consistent and predictable polishing capability. A continuous polisher (or annular lap) which might at Kirtland's Developmental Optical Facility. Large NaCl windows had not been polished on this type of machine. The machine has proven itself capable of producing lambda/16 figures at 633 nm (HeNe) with extremely smooth surfaces on glass. Since then, we have been working exclusively on NaCl optics. Due to different polishing parameters between NaCl and glass, and the slight solubility of the pitch in the slurry, this phase presents new problems. The work on glass will be reviewed. Results on NaCl to date will be reported. The potential of this type of machine relative to prisms, thin and irregularly shaped optics will be discussed

  4. Detection of paint polishing defects

    Science.gov (United States)

    Rebeggiani, S.; Wagner, M.; Mazal, J.; Rosén, B.-G.; Dahlén, M.

    2018-06-01

    Surface finish plays a major role on perceived product quality, and is the first thing a potential buyer sees. Today end-of-line repairs of the body of cars and trucks are inevitably to secure required surface quality. Defects that occur in the paint shop, like dust particles, are eliminated by manual sanding/polishing which lead to other types of defects when the last polishing step is not performed correctly or not fully completed. One of those defects is known as ‘polishing roses’ or holograms, which are incredibly hard to detect in artificial light but are clearly visible in sunlight. This paper will present the first tests with a measurement set-up newly developed to measure and analyse polishing roses. The results showed good correlations to human visual evaluations where repaired panels were estimated based on the defects’ intensity, severity and viewing angle.

  5. Tooth polishing: The current status

    Directory of Open Access Journals (Sweden)

    Madhuri Alankar Sawai

    2015-01-01

    Full Text Available Healthy teeth and gums make a person feel confident and fit. As people go about their daily routines and with different eating and drinking habits, the tooth enamel turns yellowish or gets stained. Polishing traditionally has been associated with the prophylaxis procedure in most dental practices, which patients know and expect. However, with overzealous use of polishing procedure, there is wearing of the superficial tooth structure. This would lead to more accumulation of local deposits. Also, it takes a long time for the formation of the fluoride-rich layer of the tooth again. Hence, now-a-days, polishing is not advised as a part of routine oral prophylaxis procedure but is done selectively based on the patients′ need. The article here, gives an insight on the different aspects of the polishing process along with the different methods and agents used for the same.

  6. Lysenko affair and Polish botany.

    Science.gov (United States)

    Köhler, Piotr

    2011-01-01

    This article describes the slight impact of Lysenkoism upon Polish botany. I begin with an account of the development of plant genetics in Poland, as well as the attitude of scientists and the Polish intelligentsia toward Marxist philosophy prior to the World War II. Next I provide a short history of the introduction and demise of Lysenkoism in Polish science, with a focus on events in botany, in context with key events in Polish science from 1939 to 1958. The article outlines the little effects of Lysenkoism upon botanists and their research, as well as how botanists for the most part rejected what was often termed the "new biology." My paper shows that though Lysenko's theories received political support, and were actively promoted by a small circle of scientists and Communist party activists, they were never accepted by most botanists. Once the political climate in Poland altered after the events of 1956, Lysenko's theories were immediately abandoned.

  7. When the Ocean Strikes Back

    DEFF Research Database (Denmark)

    Gebauer, Mirjam

    2013-01-01

    The disaster scenario is one of the predominant settings we find unfold in the pop-cultural imagination, namely in films and novels. In recent years, as increased awareness of environmental issues affect the agendas of public debate, we also see local and increasingly global environmental disasters...... is evolving caused by an intelligent life form of the deep sea striking back at mankind. This article aims at discussing in what ways The Swarm uses elements and patterns of the pop-cultural disaster imagination, specifically the disaster and science fiction movie of the 1990s. Furthermore, it investigates...

  8. Elastic emission polishing

    Energy Technology Data Exchange (ETDEWEB)

    Loewenthal, M.; Loseke, K.; Dow, T.A.; Scattergood, R.O.

    1988-12-01

    Elastic emission polishing, also called elastic emission machining (EEM), is a process where a stream of abrasive slurry is used to remove material from a substrate and produce damage free surfaces with controlled surface form. It is a noncontacting method utilizing a thick elasto-hydrodynamic film formed between a soft rotating ball and the workpiece to control the flow of the abrasive. An apparatus was built in the Center, which consists of a stationary spindle, a two-axis table for the workpiece, and a pump to circulate the working fluid. The process is controlled by a programmable computer numerical controller (CNC), which presently can operate the spindle speed and movement of the workpiece in one axis only. This apparatus has been used to determine material removal rates on different material samples as a function of time, utilizing zirconium oxide (ZrO{sub 2}) particles suspended in distilled water as the working fluid. By continuing a study of removal rates the process should become predictable, and thus create a new, effective, yet simple tool for ultra-precision mechanical machining of surfaces.

  9. Women, transition and strikes in Serbia

    OpenAIRE

    Novaković, Nada G.

    2014-01-01

    The author, in a sociological way, describes and analyzes the concepts of transition, privatization and strikes in Serbia, particularly the place of women in it. It examines the most important economic and social causes and consequences of these phenomena. The main hypothesis is: women's strikes in the Serbian transition are less efficient than strikes and public protests of women in the developed world and the second Yugoslavia. A strike is a class conflict, in which the workers are fighting...

  10. 14 CFR 35.38 - Lightning strike.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Lightning strike. 35.38 Section 35.38... STANDARDS: PROPELLERS Tests and Inspections § 35.38 Lightning strike. The applicant must demonstrate, by... lightning strike without causing a major or hazardous propeller effect. The limit to which the propeller has...

  11. Polish Toxic Currency Options

    Directory of Open Access Journals (Sweden)

    Waldemar Gontarski

    2009-06-01

    Full Text Available Toxic currency options are defined on the basis of the opposition to the nature (essence of an option contract, which is justified in terms of norms founded on the general law clause of characteristics (nature of a relation (which represents an independent premise for imposing restrictions on the freedom of contracts. So-understood toxic currency options are unlawful. Indeed they contravene iuris cogentis regulations. These include for instance option contracts, which are concluded with a bank, if the bank has not informed about option risk before concluding the contract; or the barrier options, which focus only on the protection of bank’s interests. Therefore, such options may appear to be invalid. Therefore, performing contracts for toxic currency options may be qualified as a criminal mismanagement. For the sake of security, the manager should then take into consideration filing a claim for stating invalidity (which can be made in a court verdict. At the same time, if the supervisory board member in a commercial company, who can also be a subject to mismanagement offences, commits an omission involving lack of reaction (for example, if he/she fails to notify of the suspected offence committed by the management board members acting to the company’s detriment when the management board makes the company conclude option contracts which are charged with absolute invalidity the supervisory board member so acting may be considered to act to the company’s detriment. In the most recent Polish jurisprudence and judicature the standard of a “good host” is treated to be the last resort for determining whether the manager’s powers resulting from criminal regulations were performed. The manager of the exporter should not, as a rule, issue any options. Issuing options always means assuming an obligation. In the case of currency put options it is an absolute obligation to purchase a given amount in euro at exchange rate set in advance. On the

  12. Polish-German bilingualism at school. A Polish perspective

    Directory of Open Access Journals (Sweden)

    Pulaczewska, Hanna

    2014-03-01

    Full Text Available This article presents the institutional frames for the acquisition of Polish literacy skills in Germany and the maintenance of Polish-German bilingualism after the repatriation of bilingual children to Poland. These processes are examined in the context of recent developments in the European domestic job market. While the European Union has placed proficiency in several languages among its educational objectives, and foreign languages have been made obligatory school subjects in all member countries, the potential advantages of internal European migrations for producing high-proficiency bilinguals are being ignored. Bilingualism resulting from migration and biculturalism enjoys little social prestige in the host countries. In Germany, there is significant regional variation in how school authorities react to challenges posed by the presence of minority languages. In many cases, the linguistic potential of many second-generation migrants and re-emigrants gets largely wasted because of lacking interest and incentives from German and Polish institutions alike.

  13. Sensing roughness and polish direction

    DEFF Research Database (Denmark)

    Jakobsen, Michael Linde; Olesen, Anders Sig; Larsen, Henning Engelbrecht

    2016-01-01

    As a part of the work carried out in a project supported by the Danish Council for Technology and Innovation, we have investigated the option of smoothing standard CNC-machined surfaces. In the process of constructing optical prototypes, involving custom-designed optics, the development cost...... and time consumption can become prohibitive in a research budget. Machining the optical surfaces directly is expensive and time consuming. Alternatively, a more standardized and cheaper machining method can be used, calling for the object to be manually polished. During the polishing process, the operator...... needs information about the RMS-value of the surface roughness and the current direction of the scratches introduced by the polishing process. The RMS-value indicates to the operator how far he is from the final finish, and the scratch orientation is often specified by the customer in order to avoid...

  14. Cannabinoids cases in polish athletes

    OpenAIRE

    A Pokrywka; Z Obmiński; D Kwiatkowska; R Grucza

    2009-01-01

    The aim of this study was to investigate the number of cases and the profiles of Polish athletes who had occasionally been using marijuana or hashish throughout the period of 1998-2004, with respect to: sex, age, and discipline of sport as well as the period of testing (in- and out-of-competition). Results of the study were compared with some data reported by other WADA accredited anti-doping laboratories. Totally, 13 631 urine samples taken from Polish athletes of both sexes, aged 10-67 year...

  15. Graphite Composite Panel Polishing Fixture

    Science.gov (United States)

    Hagopian, John; Strojny, Carl; Budinoff, Jason

    2011-01-01

    The use of high-strength, lightweight composites for the fixture is the novel feature of this innovation. The main advantage is the light weight and high stiffness-to-mass ratio relative to aluminum. Meter-class optics require support during the grinding/polishing process with large tools. The use of aluminum as a polishing fixture is standard, with pitch providing a compliant layer to allow support without deformation. Unfortunately, with meter-scale optics, a meter-scale fixture weighs over 120 lb (.55 kg) and may distort the optics being fabricated by loading the mirror and/or tool used in fabrication. The use of composite structures that are lightweight yet stiff allows standard techniques to be used while providing for a decrease in fixture weight by almost 70 percent. Mounts classically used to support large mirrors during fabrication are especially heavy and difficult to handle. The mount must be especially stiff to avoid deformation during the optical fabrication process, where a very large and heavy lap often can distort the mount and optic being fabricated. If the optic is placed on top of the lapping tool, the weight of the optic and the fixture can distort the lap. Fixtures to support the mirror during fabrication are often very large plates of aluminum, often 2 in. (.5 cm) or more in thickness and weight upwards of 150 lb (68 kg). With the addition of a backing material such as pitch and the mirror itself, the assembly can often weigh over 250 lb (.113 kg) for a meter-class optic. This innovation is the use of a lightweight graphite panel with an aluminum honeycomb core for use as the polishing fixture. These materials have been used in the aerospace industry as structural members due to their light weight and high stiffness. The grinding polishing fixture consists of the graphite composite panel, fittings, and fixtures to allow interface to the polishing machine, and introduction of pitch buttons to support the optic under fabrication. In its

  16. Preemptive strikes: Fear, hope, and defensive aggression.

    Science.gov (United States)

    Halevy, Nir

    2017-02-01

    Preemptive strikes are costly and harmful. Existing models of defensive aggression focus narrowly on the role fear plays in motivating preemptive strikes. Theoretically integrating the literatures on conflict, decision making, and emotion, the current research investigated how specific emotions associated with certainty or uncertainty, including fear, anger, disgust, hope, and happiness, influence preemptive strikes. Study 1 demonstrated that hope negatively predicts defensive exits from relationships in choice dilemmas. Studies 2 and 3 experimentally manipulated risk of being attacked in an incentivized, interactive decision making task-the Preemptive Strike Game. Risk of being attacked fueled preemptive strikes; reduced feelings of hope partially mediated this effect in Study 3. Studies 4 and 5 investigated preemptive strikes under uncertainty (rather than risk). In Study 4, reasoning about the factors that make one trustful of others curbed preemptive strikes; cogitating about the factors that underlie discrete emotions, however, did not influence defensive aggression. Study 5 demonstrated that the valence and uncertainty appraisals of incidental emotions interact in shaping preemptive strikes. Specifically, recalling an autobiographical emotional experience that produced hope significantly decreased attack rates relative to fear, happiness, and a control condition. Fear, anger, disgust, and happiness were either unrelated to preemptive strikes or showed inconsistent relationships with preemptive strikes across the 5 studies. These findings shed light on how emotions shape defensive aggression, advance knowledge on strategic choice under risk and uncertainty, and demonstrate hope's positive effects on social interactions and relationships. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

  17. Polish-Bulgarian-Russian, Bulgarian-Polish-Russian or Russian-Bulgarian-Polish dictionary?

    Directory of Open Access Journals (Sweden)

    Violetta Koseska-Toszewa

    2015-11-01

    Full Text Available Polish-Bulgarian-Russian, Bulgarian-Polish-Russian or Russian-Bulgarian-Polish dictionary? The trilingual dictionary (M. Duszkin, V. Koseska, J. Satoła and A. Tzoneva is being elaborated based on a working Polish-Bulgarian-Russian electronic parallel corpus authored by Maksim Duszkin, Violetta Koseska-Toszewa and Joanna Satoła-Staśkowiak, and works by A. Tzoneva. It is the first corpus comparing languages belonging to three different Slavic language groups: western, southern and eastern. Works on the dictionary are based on Gramatyka konfrontatywna bułgarsko-polska (Bulgarian-Polish confrontative grammar and the proposed there semantic-oriented interlanguage. Two types of classifiers have been introduced into the dictionary: classic and semantic. The trilingual dictionary will present a consistent and homogeneous set of facts of grammar and semantics. The Authors point out that in a traditional dictionary it is not clear for example whether aspect should be understood as imperfective / perfective form of a verb or as its meaning. Therefore in the dictionary forms and meaning are separated in a regular way. Imperfective verb form has two meanings: state and configuration of states and events culminating in state. Also perfective verb form has two meanings: event and configuration of states and events culminating in event. These meanings are described by the semantic classifiers, respectively, state and event, state1 and event1. The way of describing language units, mentioned in the article, gives a possibility to present language material (Polish, Bulgarian, Russian in any required order, hence the article’s title.

  18. Cannabinoids cases in polish athletes

    Directory of Open Access Journals (Sweden)

    A Pokrywka

    2009-07-01

    Full Text Available The aim of this study was to investigate the number of cases and the profiles of Polish athletes who had occasionally been using marijuana or hashish throughout the period of 1998-2004, with respect to: sex, age, and discipline of sport as well as the period of testing (in- and out-of-competition. Results of the study were compared with some data reported by other WADA accredited anti-doping laboratories. Totally, 13 631 urine samples taken from Polish athletes of both sexes, aged 10-67 years, performing 46 disciplines of sport were tested. Cannabinoids were detected in 267 samples. Among Polish athletes the relative number of positive THC (tetrahydrocannabinol samples was one of the highest in Europe. The group of young Polish athletes (aged 16-24 years was the most THC-positive. THC-positive cases were noted more frequently in male athletes tested during out of competitions. The so-called contact sports (rugby, ice hockey, skating, boxing, badminton, body building and acrobatic sports were those sports, where the higher risk of cannabis use was observed. The legal interpretation of some positive cannabinoids results would be difficult because of some accidental and unintentional use of the narcotics by sportsmen. It was concluded that national anti-doping organizations (NADO’s, which are competent to judge whether the anti-doping rules were violated, should take into account the possibility of non-intentional doping use of cannabinoids via passive smoking of marijuana.

  19. Estimating the Impact of Bird Strikes

    NARCIS (Netherlands)

    Metz, I.C.; Muhlhausen, Thorsten; Ellerbroek, J.; Hoekstra, J.M.

    2018-01-01

    Bird strikes have the potential to cause severe damage to aircraft. Therefore, measures to reduce the risk of bird strikes are performed at airports. However, this risk is not limited to the airport but is increased in the arrival and departure corridors as well. Consequently, a significant amount

  20. Option Strike Price and Managerial Investment Decisions

    Institute of Scientific and Technical Information of China (English)

    刘鸿雁; 张维

    2003-01-01

    The manager′s investment decisions is modeled when the manager is risk-averse and has stock options as compensation. It is found that the strike price of options is crucial to the investment incentives of managers, and that the correct value, or interval of values, of managerial stock option strike price can bring stockholder and manager interests in agreement.

  1. Polish energy-system modernisation

    International Nuclear Information System (INIS)

    Drozdz, M.

    2003-01-01

    The Polish energy-system needs intensive investments in new technologies, which are energy efficient, clean and cost effective. Since the early 1990s, the Polish economy has had practically full access to modern technological devices, equipment and technologies. Introducing new technologies is a difficult task for project teams, constructors and investors. The author presents a set of principles for project teams useful in planning and energy modernisation. Several essential features are discussed: Energy-efficient appliances and systems; Choice of energy carriers, media and fuels; Optimal tariffs, maximum power and installed power; Intelligent, integrated, steering systems; Waste-energy recovery; Renewable-energy recovery. In practice there are several difficulties connected with planning and realising good technological and economic solutions. The author presents his own experiences of energy-system modernisation of industrial processes and building new objects. (Author)

  2. Energy savings in Polish buildings

    Energy Technology Data Exchange (ETDEWEB)

    Markel, L.C.; Gula, A.; Reeves, G.

    1995-12-31

    A demonstration of low-cost insulation and weatherization techniques was a part of phase 1 of the Krakow Clean Fossil Fuels and Energy Efficient Project. The objectives were to identify a cost-effective set of measures to reduce energy used for space heating, determine how much energy could be saved, and foster widespread implementation of those measures. The demonstration project focused on 4 11-story buildings in a Krakow housing cooperative. Energy savings of over 20% were obtained. Most important, the procedures and materials implemented in the demonstration project have been adapted to Polish conditions and applied to other housing cooperatives, schools, and hospitals. Additional projects are being planned, in Krakow and other cities, under the direction of FEWE-Krakow, the Polish Energie Cities Network, and Biuro Rozwoju Krakowa.

  3. SAFETY PLATFORM OF POLISH TRANSPORT

    Directory of Open Access Journals (Sweden)

    Katarzyna CHRUZIK

    2016-03-01

    Full Text Available Analyzing the level of Polish transport safety culture can be seen that it is now dependent on the culture of safety management within the organization and the requirements and recommendations of law in this field for different modes of transport (air, rail, road, water. Of the four basic types of transport requirements are widely developed in the aviation, rail, and water – the sea. In order to harmonize the requirements for transport safety so it appears advisable to develop a platform for exchange of safety information for different modes of transport, and the development of good practices multimodal offering the possibility of improving Polish transport safety. Described in the publication of the proposal in addition to the alignment platform experience and knowledge in the field of transport safety in all its kinds, it can also be a tool for perfecting new operators of public transport.

  4. Polishing compound for plastic surfaces

    Science.gov (United States)

    Stowell, M.S.

    1991-01-01

    This invention is comprised of a polishing compound for plastic materials. The compound includes approximately by approximately by weight 25 to 80 parts at least one petroleum distillate lubricant, 1 to 12 parts mineral spirits, 50 to 155 parts abrasive paste, and 15 to 60 parts water. Preferably, the compound includes approximately 37 to 42 parts at least one petroleum distillate lubricant, up to 8 parts mineral spirits, 95 to 110 parts abrasive paste, and 50 to 55 parts water. The proportions of the ingredients are varied in accordance with the particular application. The compound is used on PLEXIGLAS{trademark}, LEXAN{trademark}, LUCITE{trademark}, polyvinyl chloride (PVC), and similar plastic materials whenever a smooth, clear polished surface is desired.

  5. Careers of young Polish chemists

    OpenAIRE

    Kosmulski, Marek

    2014-01-01

    Typical young Polish scientist is an alumnus of doctoral studies at the same university and department where he/she completed his/her Master degree. The career is continued by receiving a habilitation at the same university and department. Then a holder of habilitation is promoted to a tenured position at the same university and department. Detailed analysis of scientific careers of 154 recent Ph.D. recipients and of 16 habilitation candidates in chemistry from University of Warsaw is present...

  6. 19th Polish Control Conference

    CERN Document Server

    Kacprzyk, Janusz; Oprzędkiewicz, Krzysztof; Skruch, Paweł

    2017-01-01

    This volume contains the proceedings of the KKA 2017 – the 19th Polish Control Conference, organized by the Department of Automatics and Biomedical Engineering, AGH University of Science and Technology in Kraków, Poland on June 18–21, 2017, under the auspices of the Committee on Automatic Control and Robotics of the Polish Academy of Sciences, and the Commission for Engineering Sciences of the Polish Academy of Arts and Sciences. Part 1 deals with general issues of modeling and control, notably flow modeling and control, sliding mode, predictive, dual, etc. control. In turn, Part 2 focuses on optimization, estimation and prediction for control. Part 3 is concerned with autonomous vehicles, while Part 4 addresses applications. Part 5 discusses computer methods in control, and Part 6 examines fractional order calculus in the modeling and control of dynamic systems. Part 7 focuses on modern robotics. Part 8 deals with modeling and identification, while Part 9 deals with problems related to security, fault ...

  7. Developing personal values: trainees' attitudes toward strikes by health care providers.

    Science.gov (United States)

    Li, Su-Ting T; Srinivasan, Malathi; Der-Martirosian, Claudia; Kravitz, Richard L; Wilkes, Michael S

    2011-05-01

    Worldwide, health care providers use strikes and job actions to influence policy. For health care providers, especially physicians, strikes create an ethical tension between an obligation to care for current patients (e.g., to provide care and avoid abandonment) and an obligation to better care for future patients by seeking system improvements (e.g., improvements in safety, to access, and in the composition and strength of the health care workforce). This tension is further intensified when the potential benefit of a strike involves professional self-interest and the potential risk involves patient harm or death. By definition, trainees are still forming their professional identities and values, including their opinions on fair wages, health policy, employee benefits, professionalism, and strikes. In this article, the authors explore these ethical tensions, beginning with a discussion of reactions to a potential 2005 nursing strike at the University of California, Davis, Medical Center. The authors then propose a conceptual model describing factors that may influence health care providers' decisions to strike (including personal ethics, personal agency, and strike-related context). In particular, the authors explore the relationship between training level and attitudes toward taking a job action, such as going on strike. Because trainees' attitudes toward strikes continue to evolve during training, the authors maintain that open discussion around the ethics of health care professionals' strikes and other methods of conflict resolution should be included in medical education to enhance professionalism and systems-based practice training. The authors include sample case vignettes to help initiate these important discussions. Copyright © by the Association of American medical Colleges.

  8. Lightning Strike in Pregnancy With Fetal Injury.

    Science.gov (United States)

    Galster, Kellen; Hodnick, Ryan; Berkeley, Ross P

    2016-06-01

    Injuries from lightning strikes are an infrequent occurrence, and are only rarely noted to involve pregnant victims. Only 13 cases of lightning strike in pregnancy have been previously described in the medical literature, along with 7 additional cases discovered within news media reports. This case report presents a novel case of lightning-associated injury in a patient in the third trimester of pregnancy, resulting in fetal ischemic brain injury and long-term morbidity, and reviews the mechanics of lightning strikes along with common injury patterns of which emergency providers should be aware. Copyright © 2016 Wilderness Medical Society. Published by Elsevier Inc. All rights reserved.

  9. Expeditionary Strike Group: Command Structure Design Support

    National Research Council Canada - National Science Library

    Hutchins, Susan G; Kemple, William G; Kleinman, David L; Hocevar, Susan P

    2005-01-01

    An Expeditionary Strike Group (ESG) is a new capability mix that combines the combat power of three surface combatants and one submarine with an Amphibious Readiness Group/ Marine Expeditionary Unit...

  10. Feature Hepatitis: Hepatitis Can Strike Anyone

    Science.gov (United States)

    ... Navigation Bar Home Current Issue Past Issues Feature Hepatitis Hepatitis Can Strike Anyone Past Issues / Spring 2009 Table ... from all walks of life are affected by hepatitis, especially hepatitis C, the most common form of ...

  11. The tourism attractiveness of Polish libraries

    OpenAIRE

    Miedzińska, Magdalena; Tanaś, Sławoj

    2009-01-01

    The aim of the article is to draw the reader's attention to the tourism attractiveness of renowned Polish libraries. These have attained a tourism function due to tourism exploration and penetration, but remain in the shadow of other Polish cultural assets. The article outlines the historical geography of Polish libraries, an analysis of tourism assets and an attempt to classify and catalogue libraries in Poland.

  12. Corporate Politics on Polish Millennials

    OpenAIRE

    Natalia Roślik

    2017-01-01

    In the very beginning of this particular paper, an author is trying to determine and describe who Millennials actually are. Then, the basis of Millennials definition is analysing corporation’s activity over the past years regarding this age group. The main goal of the thesis is to bring their specific futures out and describe what corporations on Polish job market are doing to encourage them to work in their offices. Especially in Poland within the last years, it is observed that big multinat...

  13. Polish Foundation for Energy Efficiency

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-12-31

    The Polish Foundation for Energy Efficiency (FEWE) was established in Poland at the end of 1990. FEWE, as an independent and non-profit organization, has the following objectives: to strive towards an energy efficient national economy, and to show the way and methods by use of which energy efficiency can be increased. The activity of the Foundation covers the entire territory of Poland through three regional centers: in Warsaw, Katowice and Cracow. FEWE employs well-known and experienced specialists within thermal and power engineering, civil engineering, economy and applied sciences. The organizer of the Foundation has been Battelle Memorial Institute - Pacific Northwest Laboratories from the USA.

  14. Women, transition and strikes in Serbia

    Directory of Open Access Journals (Sweden)

    Novaković Nada G.

    2014-01-01

    Full Text Available The author, in a sociological way, describes and analyzes the concepts of transition, privatization and strikes in Serbia, particularly the place of women in it. It examines the most important economic and social causes and consequences of these phenomena. The main hypothesis is: women's strikes in the Serbian transition are less efficient than strikes and public protests of women in the developed world and the second Yugoslavia. A strike is a class conflict, in which the workers are fighting for their social and economic rights, threatened by the capitalist class. Elites in government and state authorities protect the interests of big capital at the detriment of the interests of the majority of workers. Exploring women's strikes in transition reveals the nature of the social and political system. Their strikes in enterprises, the blocking of public spaces and public protests are systemic, ie. class determined. As the transition was very fast, the resistance of the strikers was inefficient, and the protests of women became an expression of desperation against the loss of jobs and basic resources for lifehood. In short, this research is about the main causes, the organizational forms and the consequences of strikes in which the majority were women. For this purpose, the author chose to describe an array of strikes in the industries and the companies where women are most employed. The choice of strikes in the economic sector is not accidental, but a consequence of the fact that the women there were the most vulnerable. Women in public institutions and companies had much higher financial and social position. They are less likely to strike and publicly protested. After 2000, these strikes were more successful than worker's strikes in textile, food processing, manufacturing and trade. Relationship between the government and the public towards them was tainted by self-interest and selective. The main criterion for the selection of companies and

  15. Sexual activity of Polish adults

    Directory of Open Access Journals (Sweden)

    Beata Pastwa-Wojciechowska

    2014-03-01

    Full Text Available Aim. The purpose of this research was to explore the subject of sexual activity in the Polish population, with special focus on age and gender differences, and sexual infidelity. Sexual activity is one of the basic factors in initiating and maintaining relationships. On the one hand, sexual activity enables us to meet natural needs and maintain an intimate relationship with another human being; on the other, it may allow us to overcome loneliness and social isolation by providing the opportunity to express feelings of closeness and unity. Material and method. The research was conducted on a representative group of 3,200 Poles aged between 15–49, with the support of a well-known Polish research company – TNS OBOP. Face-to-face and Pencil and Paper (PAPI interviews were carried out. Results. The results focus on two main issues: the age and motives of sexual initiation among teenagers (with a significant percentage starting their sexual activity at the age of 15, and the quality of the sexual lives of adults (average number of sexual partners, sexual infidelity and sexual satisfaction. Conclusion. There is dependence between the type of relationship and the performance or non-performance of sexual activity, as well as the quality of the relationship. Among both adolescents and adults, remaining in a stable relationship (partnership or marriage promotes loyalty. The performance of sexual goals turns out to be an important mechanism regulating the interpersonal aspects of a relationship, influencing their perception and evaluation.

  16. Buffered Electrochemical Polishing of Niobium

    Energy Technology Data Exchange (ETDEWEB)

    Ciovati, Gianluigi [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Tian, Hui [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); College of William and Mary, Williamsburg, VA (United States); Corcoran, Sean [Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)

    2011-03-01

    The standard preparation of superconducting radio-frequency (SRF) cavities made of pure niobium include the removal of a 'damaged' surface layer, by buffered chemical polishing (BCP) or electropolishing (EP), after the cavities are formed. The performance of the cavities is characterized by a sharp degradation of the quality factor when the surface magnetic field exceeds about 90 mT, a phenomenon referred to as 'Q-drop.' In cavities made of polycrystalline fine grain (ASTM 5) niobium, the Q-drop can be significantly reduced by a low-temperature (? 120 °C) 'in-situ' baking of the cavity if the chemical treatment was EP rather than BCP. As part of the effort to understand this phenomenon, we investigated the effect of introducing a polarization potential during buffered chemical polishing, creating a process which is between the standard BCP and EP. While preliminary results on the application of this process to Nb cavities have been previously reported, in this contribution we focus on the characterization of this novel electrochemical process by measuring polarization curves, etching rates, surface finish, electrochemical impedance and the effects of temperature and electrolyte composition. In particular, it is shown that the anodic potential of Nb during BCP reduces the etching rate and improves the surface finish.

  17. When Push Comes to Shove: Strikes in Higher Education.

    Science.gov (United States)

    Magney, John

    2002-01-01

    To provide a better sense of how academic unions handle a strike situation, examines six unions who, between 1996 and 2000, went through strikes. Discusses the key issues and outcomes of the strikes. (EV)

  18. Polish Industry and Art at CERN

    CERN Multimedia

    2000-01-01

    On 17 October 2000 the second Polish industrial and technological exhibition opened at CERN. The first one was held five years ago and nine of the companies that were present then have come back again this year. Six of those companies were awarded contracts with CERN in 1995. Three Polish officials were present at the Opening Ceremony today: Mrs Malgorzata Kozlowska, Under-secretary of State in the State Committee for Scientific Research, Mr Henryk Ogryczak, Under-secretary of State in Ministry of Economy and Prof. Jerzy Niewodniczanski, President of National Atomic Energy Agency. Professor Luciano Maiani welcomed the Polish delegation to CERN and stressed the important contribution of Polish scientists and industrialists to the work of the laboratory. Director General Luciano Maiani (back left) and head of SPL division Karl-Heinz Kissler (back right) visit the Poland at CERN exhibition… The exhibition offers Polish companies the opportunity to establish professional contacts with CERN. Nineteen companies...

  19. Decentralization or centralization: striking a balance.

    Science.gov (United States)

    Dirschel, K M

    1994-09-01

    An Executive Vice President for Nursing can provide the necessary link to meet diverse clinical demands when encountering centralization--decentralization decisions. Centralized communication links hospital departments giving nurses a unified voice. Decentralization acknowledges the need for diversity and achieves the right balance of uniformity through a responsive communications network.

  20. Corporate Politics on Polish Millennials

    Directory of Open Access Journals (Sweden)

    Natalia Roślik

    2017-12-01

    Full Text Available In the very beginning of this particular paper, an author is trying to determine and describe who Millennials actually are. Then, the basis of Millennials definition is analysing corporation’s activity over the past years regarding this age group. The main goal of the thesis is to bring their specific futures out and describe what corporations on Polish job market are doing to encourage them to work in their offices. Especially in Poland within the last years, it is observed that big multinational companies are paying special attention to Millennials and trying to hire them before competitors will do so. As a part of this paper, an author will describe corporate politics and practices on Thomson Reuters and BNY Mellon examples. Within this work, an author is also discussing key features and differences between this generation and Millennials parent’s generation. Additionally, there is a reference to corporate social responsibility concept and work-life balance issues.

  1. Determinants of Polish public debt

    Directory of Open Access Journals (Sweden)

    Tomasz Stryjewski

    2011-12-01

    Full Text Available The crisis, which had its beginning in 2007, turned into the debt crisis of the countries. The examples of Greece, Ireland, Iceland or Spain showed the category of public debt in a new light. Poland, at the turn of 2010/2011 also achieved the upper level of public debt acceptable by the law. In the present situation of the European Union countries being in debt, and even insolvent, the situation in Poland becomes riskier. This article attempts at an empirical verification of the determinants of Polish public debt within 95 months (the data link with the period of time from January 2003 to November 2010. The verification of the main factors which cause the formation of public debt takes place by means of an appropriately verified econometric model.

  2. Zerodur polishing process for high surface quality and high efficiency

    International Nuclear Information System (INIS)

    Tesar, A.; Fuchs, B.

    1992-08-01

    Zerodur is a glass-ceramic composite importance in applications where temperature instabilities influence optical and mechanical performance, such as in earthbound and spaceborne telescope mirror substrates. Polished Zerodur surfaces of high quality have been required for laser gyro mirrors. Polished surface quality of substrates affects performance of high reflection coatings. Thus, the interest in improving Zerodur polished surface quality has become more general. Beyond eliminating subsurface damage, high quality surfaces are produced by reducing the amount of hydrated material redeposited on the surface during polishing. With the proper control of polishing parameters, such surfaces exhibit roughnesses of < l Angstrom rms. Zerodur polishing was studied to recommend a high surface quality polishing process which could be easily adapted to standard planetary continuous polishing machines and spindles. This summary contains information on a polishing process developed at LLNL which reproducibly provides high quality polished Zerodur surfaces at very high polishing efficiencies

  3. Convergent Polishing: A Simple, Rapid, Full Aperture Polishing Process of High Quality Optical Flats & Spheres

    Science.gov (United States)

    Suratwala, Tayyab; Steele, Rusty; Feit, Michael; Dylla-Spears, Rebecca; Desjardin, Richard; Mason, Dan; Wong, Lana; Geraghty, Paul; Miller, Phil; Shen, Nan

    2014-01-01

    Convergent Polishing is a novel polishing system and method for finishing flat and spherical glass optics in which a workpiece, independent of its initial shape (i.e., surface figure), will converge to final surface figure with excellent surface quality under a fixed, unchanging set of polishing parameters in a single polishing iteration. In contrast, conventional full aperture polishing methods require multiple, often long, iterative cycles involving polishing, metrology and process changes to achieve the desired surface figure. The Convergent Polishing process is based on the concept of workpiece-lap height mismatch resulting in pressure differential that decreases with removal and results in the workpiece converging to the shape of the lap. The successful implementation of the Convergent Polishing process is a result of the combination of a number of technologies to remove all sources of non-uniform spatial material removal (except for workpiece-lap mismatch) for surface figure convergence and to reduce the number of rogue particles in the system for low scratch densities and low roughness. The Convergent Polishing process has been demonstrated for the fabrication of both flats and spheres of various shapes, sizes, and aspect ratios on various glass materials. The practical impact is that high quality optical components can be fabricated more rapidly, more repeatedly, with less metrology, and with less labor, resulting in lower unit costs. In this study, the Convergent Polishing protocol is specifically described for fabricating 26.5 cm square fused silica flats from a fine ground surface to a polished ~λ/2 surface figure after polishing 4 hr per surface on a 81 cm diameter polisher. PMID:25489745

  4. Impact of lightning strikes on hospital functions.

    Science.gov (United States)

    Mortelmans, Luc J M; Van Springel, Gert L J; Van Boxstael, Sam; Herrijgers, Jan; Hoflacks, Stefaan

    2009-01-01

    Two regional hospitals were struck by lightning during a one-month period. The first hospital, which had 236 beds, suffered a direct strike to the building. This resulted in a direct spread of the power peak and temporary failure of the standard power supply. The principle problems, after restoring standard power supply, were with the fire alarm system and peripheral network connections in the digital radiology systems. No direct impact on the hardware could be found. Restarting the servers resolved all problems. The second hospital, which had 436 beds, had a lightning strike on the premises and mainly experienced problems due to induction. All affected installations had a cable connection from outside in one way or another. The power supplies never were endangered. The main problem was the failure of different communication systems (telephone, radio, intercom, fire alarm system). Also, the electronic entrance control went out. During the days after the lightening strike, multiple software problems became apparent, as well as failures of the network connections controlling the technical support systems. There are very few ways to prepare for induction problems. The use of fiber-optic networks can limit damage. To the knowledge of the authors, these are the first cases of lightning striking hospitals in medical literature.

  5. Technological Advances of Robot Assisted Polishing

    DEFF Research Database (Denmark)

    Lazarev, Ruslan; Top, Søren; Grønbæk, Jens

    The efficient polishing of surfaces is very important in mould and die industry. Fine abrasive processes are widely used in industry for the first steps for the production of tools of high quality in terms of finishing accuracy, form and surface integrity. While manufacturing of most components....... In this study, the influence of polishing parameters and type of polishing media on fine abrasive surface finishing is investigated. Experimental study is covering 2D rotational surfaces that is widespread used in mould and dies industry. Application of it is essential for process intelligent control, condition...... monitoring and quality inspection....

  6. Maritime Strike Operations Tactics Development and Evaluation, Eglin Air Force Base, Florida. Final Environmental Assessment

    Science.gov (United States)

    2013-05-01

    Strike missions would be delayed or rescheduled if the sea state is greater than moderate breeze~ winds 11 to 16 knots; wave height 3.5 to 6 feet...including but not limited to migration, surfacing, nursing , breeding, feeding, or sheltering, to a point where such behavioral patterns are abandoned...users of the surface and the offshore nature of EGTTR waters, rescheduling of tests rarely occurs. Affected Environment and Safety/Restricted Access

  7. Jewish problem in the Polish Communist Party

    Directory of Open Access Journals (Sweden)

    Cimek Henryk

    2016-12-01

    Full Text Available Jews accounted for approx. 8-10% of the population of the Second Republic and in the communist movement (Polish Communist Party and Polish Communist Youth Union the rate was approx, 30%, while in subsequent years it much fluctuated. The percentage of Jews was the highest in the authorities of the party and in the KZMP. This had a negative impact on the position of the KPP on many issues, especially in its relation to the Second Republic.

  8. Electrolytic polishing system for space age materials

    International Nuclear Information System (INIS)

    Coons, W.C.; Iosty, L.R.

    1976-01-01

    A simple electrolytic polishing technique was developed for preparing Cr, Co, Hf, Mo, Ni, Re, Ti, V, Zr, and their alloys for structural analysis on the optical microscope. The base electrolyte contains 5g ZnCl 2 and 15g AlCl 3 . 6H 2 O in 200 ml methyl alcohol, plus an amount of H 2 SO 4 depending on the metal being polished. Five etchants are listed

  9. Trace element analysis of nail polishes

    International Nuclear Information System (INIS)

    Misra, G.; Mittal, V.K.; Sahota, H.S.

    1999-01-01

    Instrumental neutron activation analysis (INAA) technique was used to measure the concentrations of various trace elements in nail polishes of popular Indian and foreign brands. The aim of the present experiment was to see whether trace elements could distinguish nail polishes of different Indian and foreign brands from forensic point of view. It was found that cesium can act as a marker to differentiate foreign and Indian brands. (author)

  10. Central hyperadrenergic state after lightning strike.

    Science.gov (United States)

    Parsaik, Ajay K; Ahlskog, J Eric; Singer, Wolfgang; Gelfman, Russell; Sheldon, Seth H; Seime, Richard J; Craft, Jennifer M; Staab, Jeffrey P; Kantor, Birgit; Low, Phillip A

    2013-08-01

    To describe and review autonomic complications of lightning strike. Case report and laboratory data including autonomic function tests in a subject who was struck by lightning. A 24-year-old man was struck by lightning. Following that, he developed dysautonomia, with persistent inappropriate sinus tachycardia and autonomic storms, as well as posttraumatic stress disorder (PTSD) and functional neurologic problems. The combination of persistent sinus tachycardia and episodic exacerbations associated with hypertension, diaphoresis, and agitation was highly suggestive of a central hyperadrenergic state with superimposed autonomic storms. Whether the additional PTSD and functional neurologic deficits were due to a direct effect of the lightning strike on the central nervous system or a secondary response is open to speculation.

  11. ["Bell-striking" Saying of Acupuncture Therapy].

    Science.gov (United States)

    Zhao, Jing-Sheng

    2017-04-25

    As an analogy, a prototype of "bell-striking" is proposed in the present paper for exploring the basic properties, major elements, and potential mechanisms of acupuncture stimulation. On the strength of analysis on the physiological basis of acupuncture effect, several fundamental aspects of acupuncture are summarized as a) the body-surface stimulating characters, b) general and local effects, and c) triggering the auto-regulative function of the organism, which mimics the "bell-striking" response. Namely, when stroke, bell will chime, otherwise, chiming will not be heard. During analyzing special contents of acupuncture theory, its formative background should not be separated, and it is improper to take, modern medical theory of the human body as the guiding thinking way for researching the ancient Chinese medical literature.

  12. Experimental Polish-Lithuanian Corpus with the Semantic Annotation Elements

    Directory of Open Access Journals (Sweden)

    Danuta Roszko

    2015-06-01

    Full Text Available Experimental Polish-Lithuanian Corpus with the Semantic Annotation Elements In the article the authors present the experimental Polish-Lithuanian corpus (ECorpPL-LT formed for the idea of Polish-Lithuanian theoretical contrastive studies, a Polish-Lithuanian electronic dictionary, and as help for a sworn translator. The semantic annotation being brought into ECorpPL-LT is extremely useful in Polish-Lithuanian contrastive studies, and also proves helpful in translation work.

  13. Proliferation of Precision Strike: Issues for Congress

    Science.gov (United States)

    2012-05-14

    industrial base. Finally, should Congress legislate requirements for DOD to develop precision strike countermeasures and then provide funding for that...Defense, Part 187 – Environmental Effects Abroad of Major Department of Defense Actions, Section 187.3: Definitions. 32 Bryan Clark and Dan Whiteneck...so many missiles ... referring to reports of Venezuelan arms flowing to Colombian guerrillas.... The Chavez regime also has close ties with

  14. Laser polishing of additive manufactured Ti alloys

    Science.gov (United States)

    Ma, C. P.; Guan, Y. C.; Zhou, W.

    2017-06-01

    Laser-based additive manufacturing has attracted much attention as a promising 3D printing method for metallic components in recent years. However, surface roughness of additive manufactured components has been considered as a challenge to achieve high performance. In this work, we demonstrate the capability of fiber laser in polishing rough surface of additive manufactured Ti-based alloys as Ti-6Al-4V and TC11. Both as-received surface and laser-polished surfaces as well as cross-section subsurfaces were analyzed carefully by White-Light Interference, Confocal Microscope, Focus Ion Beam, Scanning Electron Microscopy, Energy Dispersive Spectrometer, and X-ray Diffraction. Results revealed that as-received Ti-based alloys with surface roughness more than 5 μm could be reduce to less than 1 μm through laser polishing process. Moreover, microstructure, microhardness and wear resistance of laser-polished zone was investigated in order to examine the thermal effect of laser polishing processing on the substrate of additive manufactured Ti alloys. This proof-of-concept process has the potential to effectively improve the surface roughness of additive manufactured metallic alloy by local polishing method without damage to the substrate.

  15. Conformal polishing approach: Tool footprint analysis

    Directory of Open Access Journals (Sweden)

    José A Dieste

    2016-02-01

    Full Text Available Polishing process is one of the most critical manufacturing processes during a metal part production because it determines the final quality of the product. Free-form surface polishing is a handmade process with lots of rejected parts, scrap generation and time and energy consumption. Two different research lines are being developed: prediction models of the final surface quality parameters and an analysis of the amount of material removed depending on the polishing parameters to predict the tool footprint during the polishing task. This research lays the foundations for a future automatic conformal polishing system. It is based on rotational and translational tool with dry abrasive in the front mounted at the end of a robot. A tool to part concept is used, useful for large or heavy workpieces. Results are applied on different curved parts typically used in tooling industry, aeronautics or automotive. A mathematical model has been developed to predict the amount of material removed in function of polishing parameters. Model has been fitted for different abrasives and raw materials. Results have shown deviations under 20% that implies a reliable and controllable process. Smaller amount of material can be removed in controlled areas of a three-dimensional workpiece.

  16. Polishing of silicon based advanced ceramics

    Science.gov (United States)

    Klocke, Fritz; Dambon, Olaf; Zunke, Richard; Waechter, D.

    2009-05-01

    Silicon based advanced ceramics show advantages in comparison to other materials due to their extreme hardness, wear and creep resistance, low density and low coefficient of thermal expansion. As a matter of course, machining requires high efforts. In order to reach demanded low roughness for optical or tribological applications a defect free surface is indispensable. In this paper, polishing of silicon nitride and silicon carbide is investigated. The objective is to elaborate scientific understanding of the process interactions. Based on this knowledge, the optimization of removal rate, surface quality and form accuracy can be realized. For this purpose, fundamental investigations of polishing silicon based ceramics are undertaken and evaluated. Former scientific publications discuss removal mechanisms and wear behavior, but the scientific insight is mainly based on investigations in grinding and lapping. The removal mechanisms in polishing are not fully understood due to complexity of interactions. The role of, e.g., process parameters, slurry and abrasives, and their influence on the output parameters is still uncertain. Extensive technological investigations demonstrate the influence of the polishing system and the machining parameters on the stability and the reproducibility. It is shown that the interactions between the advanced ceramics and the polishing systems is of great relevance. Depending on the kind of slurry and polishing agent the material removal mechanisms differ. The observed effects can be explained by dominating mechanical or chemo-mechanical removal mechanisms. Therefore, hypotheses to state adequate explanations are presented and validated by advanced metrology devices, such as SEM, AFM and TEM.

  17. Interculutral Polish-Chinese QQing

    Directory of Open Access Journals (Sweden)

    Elżbieta Gajek

    2012-12-01

    Full Text Available Working in tandem with the use of information and communication technologies is well-known and frequently used as a method of supporting learning of foreign languages in authentic communication. It is based on a constructivist approach to teaching. In the reported case study Polish and Chinese students discussed in English preprepared topics. The work shows the potential of e-learning at the micro level, as the language and intercultural task is implemented into an academic course without modification of the objectives and learning outcomes of the course. Evaluation carried out at the end of the project indicates that both groups perceived the task as a significant linguistic, cultural and personal experience. They stressed the importance of sharing “culture for culture” as the partner culture was new for most of them. The ability to talk and respond to information which was often strange, from the point of view of their own culture, allowed for learning intercultural competence ̔in action’.

  18. Stress distribution of metatarsals during forefoot strike versus rearfoot strike: A finite element study.

    Science.gov (United States)

    Li, Shudong; Zhang, Yan; Gu, Yaodong; Ren, James

    2017-12-01

    Due to the limitations of experimental approaches, comparison of the internal deformation and stresses of the human man foot between forefoot and rearfoot landing is not fully established. The objective of this work is to develop an effective FE modelling approach to comparatively study the stresses and energy in the foot during forefoot strike (FS) and rearfoot strike (RS). The stress level and rate of stress increase in the Metatarsals are established and the injury risk between these two landing styles is evaluated and discussed. A detailed subject specific FE foot model is developed and validated. A hexahedral dominated meshing scheme was applied on the surface of the foot bones and skin. An explicit solver (Abaqus/Explicit) was used to stimulate the transient landing process. The deformation and internal energy of the foot and stresses in the metatarsals are comparatively investigated. The results for forefoot strike tests showed an overall higher average stress level in the metatarsals during the entire landing cycle than that for rearfoot strike. The increase rate of the metatarsal stress from the 0.5 body weight (BW) to 2 BW load point is 30.76% for forefoot strike and 21.39% for rearfoot strike. The maximum rate of stress increase among the five metatarsals is observed on the 1st metatarsal in both landing modes. The results indicate that high stress level during forefoot landing phase may increase potential of metatarsal injuries. Copyright © 2017 Elsevier Ltd. All rights reserved.

  19. Gait Retraining From Rearfoot Strike to Forefoot Strike does not change Running Economy.

    Science.gov (United States)

    Roper, Jenevieve Lynn; Doerfler, Deborah; Kravitz, Len; Dufek, Janet S; Mermier, Christine

    2017-12-01

    Gait retraining is a method for management of patellofemoral pain, which is a common ailment among recreational runners. The present study investigated the effects of gait retraining from rearfoot strike to forefoot strike on running economy, heart rate, and respiratory exchange ratio immediately post-retraining and one-month post-retraining in recreational runners with patellofemoral pain. Knee pain was also measured. Sixteen participants (n=16) were randomly placed in the control (n=8) or experimental (n=8) group. A 10-minute treadmill RE test was performed by all subjects. The experimental group performed eight gait retraining running sessions where foot strike pattern was switched from rearfoot strike to forefoot strike, while the control group received no intervention. There were no significant differences for running economy (p=0.26), respiratory exchange ratio (p=0.258), or heart rate (p=0.248) between the groups. Knee pain reported on a visual analog scale was also significantly reduced (pstrike to forefoot strike did not affect running economy up to one-month post-retraining while reducing running-related patellofemoral pain. © Georg Thieme Verlag KG Stuttgart · New York.

  20. Reflections on the health workers' strike at Malawi's major tertiary hospital, QECH, Blantyre, 2001: a case study.

    Science.gov (United States)

    Muula, A S; Phiri, A

    2003-03-01

    Health workers and support staff at Malawi's major referral hospital, the Queen Elizabeth Central Hospital, Blantyre, were on strike between 5th and 19th October 2001. The health workers' grievances included: lack of risk allowances; poor professional allowances; low salaries; and low housing allowances. The strike resulted in almost total closure of the 1500-bed hospital; only the burns and orthopaedic wards continued to serve patients. Volunteer staff, comprising the Red Cross, and nursing and medical students provided services. Verbal and written threats by the authorities had minimal effect on terminating the strike; rather, they encouraged the resolve to continue with the industrial action. We report aspects of the genesis, progress and resolution of the strike. Although not much seems to have been achieved, both the employer and the workers need to draw lessons from the experience.

  1. Smoking characteristics of Polish immigrants in Dublin.

    LENUS (Irish Health Repository)

    Kabir, Zubair

    2008-01-01

    BACKGROUND: This study examined two main hypotheses: a) Polish immigrants\\' smoking estimates are greater than their Irish counterparts (b) Polish immigrants purchasing cigarettes from Poland smoke "heavier" (>\\/= 20 cigarettes a day) when compared to those purchasing cigarettes from Ireland. The study also set out to identify significant predictors of \\'current\\' smoking (some days and everyday) among the Polish immigrants. METHODS: Dublin residents of Polish origin (n = 1,545) completed a previously validated Polish questionnaire in response to an advertisement in a local Polish lifestyle magazine over 5 weekends (July-August, 2007). The Office of Tobacco Control telephone-based monthly survey data were analyzed for the Irish population in Dublin for the same period (n = 484). RESULTS: Age-sex adjusted smoking estimates were: 47.6% (95% Confidence Interval [CI]: 47.3%; 48.0%) among the Poles and 27.8% (95% CI: 27.2%; 28.4%) among the general Irish population (p < 0.001). Of the 57% of smokers (n = 345\\/606) who purchased cigarettes solely from Poland and the 33% (n = 198\\/606) who purchased only from Ireland, 42.6% (n = 147\\/345) and 41.4% (n = 82\\/198) were "heavy" smokers, respectively (p = 0.79). Employment (Odds Ratio [OR]: 2.89; 95% CI: 1.25-6.69), lower education (OR: 3.76; 95%CI: 2.46-5.74), and a longer stay in Ireland (>24 months) were significant predictors of current smoking among the Poles. An objective validation of the self-reported smoking history of a randomly selected sub-sample immigrant group, using expired carbon monoxide (CO) measurements, showed a highly significant correlation coefficient (r = 0.64) of expired CO levels with the reported number of cigarettes consumed (p < 0.0001). CONCLUSION: Polish immigrants\\' smoking estimates are higher than their Irish counterparts, and particularly if employed, with only primary-level education, and are overseas >2 years.

  2. Acute transient hemiparesis induced by lightning strike.

    Science.gov (United States)

    Rahmani, Seyed Hesam; Faridaalaee, Gholamreza; Jahangard, Samira

    2015-07-01

    According to data from the National Oceanic and Atmospheric Administration,in the years from 1959 to 1994, lightning was responsible for more than 3000 deaths and nearly 10,000 casualties. The most important characteristic features of lightning injuries are multisystem involvement and widely variable severity. Lightning strikes are primarily a neurologic injury that affects all 3 components of the nervous system: central, autonomic,and peripheral. Neurologic complications of lightning strikes vary from transient benign symptoms to permanent disability. Many patients experience a temporary paralysis called keraunoparalysis. Here we reported a 22-year-old mountaineer man with complaining of left sided hemiparesis after being hit by a lightning strike in the mountain 3 hours ago. There was no loss of consciousness at hitting time. On arrival the patient was alert, awake and hemodynamically stable. In neurologic examination cranial nerves were intact, left sided upper and lower extremity muscle force was I/V with a combination of complete sensory loss, and right-sided muscle force and sensory examination were normal. There is not any evidence of significant vascular impairment in the affected extremities. Brain MRI and CT scan and cervical MRI were normal. During 2 days of admission, with intravenous hydration, heparin 5000 unit SC q12hr and physical therapy of the affected limbs, motor and sensory function improved and was normal except mild paresthesia. He was discharged 1 day later for outpatient follow up while vitamin B1 100mg orally was prescribed.Paresthesia improved after 3 days without further sequels.

  3. Foot-strike pattern and performance in a marathon.

    Science.gov (United States)

    Kasmer, Mark E; Liu, Xue-Cheng; Roberts, Kyle G; Valadao, Jason M

    2013-05-01

    To determine prevalence of heel strike in a midsize city marathon, if there is an association between foot-strike classification and race performance, and if there is an association between foot-strike classification and gender. Foot-strike classification (forefoot, midfoot, heel, or split strike), gender, and rank (position in race) were recorded at the 8.1-km mark for 2112 runners at the 2011 Milwaukee Lakefront Marathon. 1991 runners were classified by foot-strike pattern, revealing a heel-strike prevalence of 93.67% (n = 1865). A significant difference between foot-strike classification and performance was found using a Kruskal-Wallis test (P strike. No significant difference between foot-strike classification and gender was found using a Fisher exact test. In addition, subgroup analysis of the 126 non-heel strikers found no significant difference between shoe wear and performance using a Kruskal-Wallis test. The high prevalence of heel striking observed in this study reflects the foot-strike pattern of most mid-distance to long-distance runners and, more important, may predict their injury profile based on the biomechanics of a heel-strike running pattern. This knowledge can help clinicians appropriately diagnose, manage, and train modifications of injured runners.

  4. APS 3D: a new benchmark in aspherical polishing

    Science.gov (United States)

    Gauch, Daniel; Mikulic, Dalibor; Veit, Christian

    2017-10-01

    The APS 3D system performs polishing and form correction in one step in order to reduce overall process time, reduce the number of polishing steps required and eliminate the need for highly skilled operators while providing a repeatable polishing process. This new 3D Polishing system yields better surface quality, and a better slope error, automatically determining the optimum speeds, feed rates and polish pressures to achieve a deterministic process based on the required quality parameters input by the operator. The process flow is always the same to ensure consistent quality and target quality values are defined before polishing begins.

  5. 2002 Bird Strike Committee USA/Canada Conference

    National Research Council Canada - National Science Library

    Dolbeer, Richard

    2002-01-01

    Over 380 people from 20 countries and 17 exhibitors attended the 4th annual joint meeting of Bird Strike Committee-USA and Bird Strike Committee Canada in Sacramento, California on October 21-24, 2002...

  6. effect of strikes on management and planning of educational ...

    African Journals Online (AJOL)

    Global Journal

    Strike is an event that consumes and waste a lot of time which implies that ... from this paper. KEYWORDS: Strikes, Management, Planning, Educational, Activities, Universities ..... employers; and Introduction of new technology which affect the ...

  7. BIRD/WILDLIFE STRIKE CONTROL FOR SAFER AIR ...

    African Journals Online (AJOL)

    Osondu

    2012-06-05

    Jun 5, 2012 ... Keywords: bird/wildlife, strike, aviation, hazard, control. Introduction ... Ethiopian Journal of Environmental Studies and Management EJESM Vol. 5 No. 3 2012 .... Aircraft Bird. Strike Avoidance Rader System (ABARS) and.

  8. Strike-slip tectonics during rift linkage

    Science.gov (United States)

    Pagli, C.; Yun, S. H.; Ebinger, C.; Keir, D.; Wang, H.

    2017-12-01

    The kinematics of triple junction linkage and the initiation of transforms in magmatic rifts remain debated. Strain patterns from the Afar triple junction provide tests of current models of how rifts grow to link in area of incipient oceanic spreading. Here we present a combined analysis of seismicity, InSAR and GPS derived strain rate maps to reveal that the plate boundary deformation in Afar is accommodated primarily by extensional tectonics in the Red Sea and Gulf of Aden rifts, and does not require large rotations about vertical axes (bookshelf faulting). Additionally, models of stress changes and seismicity induced by recent dykes in one sector of the Afar triple junction provide poor fit to the observed strike-slip earthquakes. Instead we explain these patterns as rift-perpendicular shearing at the tips of spreading rifts where extensional strains terminate against less stretched lithosphere. Our results demonstrate that rift-perpendicular strike-slip faulting between rift segments achieves plate boundary linkage during incipient seafloor spreading.

  9. Properties of Lightning Strike Protection Coatings

    Science.gov (United States)

    Gagne, Martin

    Composite materials are being increasingly used by many industries. In the case of aerospace companies, those materials are installed on their aircraft to save weight, and thus, fuel costs. These aircraft are lighter, but the loss of electrical conductivity makes aircraft vulnerable to lightning strikes, which hit commercial aircrafts on average once per year. This makes lightning strike protection very important, and while current metallic expanded copper foils offer good protection, they increase the weight of composites. Therefore, under the CRIAQ COMP-502 project, a team of industrial partners and academic researchers are investigating new conductive coatings with the following characteristics: High electromagnetic protection, high mechanical resistance, good environmental protection, manufacturability and moderate cost. The main objectives of this thesis, as part of this project, was to determine the main characteristics, such as electrical and tribomechanical properties, of conductive coatings on composite panels. Their properties were also to be tested after destructive tests such as current injection and environmental testing. Bombardier Aerospace provided the substrate, a composite of carbon fiber reinforced epoxy matrix, and the current commercial product, a surfacing film that includes an expanded copper foil used to compare with the other coatings. The conductive coatings fabricated by the students are: silver nanoparticles inside a binding matrix (PEDOT:PSS or a mix of Epoxy and PEDOT:PSS), silvered carbon nanofibers embedded in the surfacing film, cold sprayed tin, graphene oxide functionalized with silver nanowires, and electroless plated silver. Additionally as part of the project and thesis, magnetron sputtered aluminum coated samples were fabricated. There are three main types of tests to characterize the conductive coatings: electrical, mechanical and environmental. Electrical tests consist of finding the sheet resistance and specific resistivity

  10. Evaluating the Effects of a Bird Strike Advisory System

    NARCIS (Netherlands)

    Metz, I.C.; Mühlhausen, T; Ellerbroek, J.; Hoekstra, J.M.

    2016-01-01

    Bird strikes have operational impacts and cause economic loss to the aviation industry. In the worst case, the damages resulting from bird strikes lead to crashes. The highest risk for bird strikes lies in the area below 3000 ft and thus mainly in airport environments. Despite intense efforts from

  11. effects of strike cost on economic development in nigeria

    African Journals Online (AJOL)

    USER

    same firm, in other firms even in other industries (Kempner, 1980). For example ... The main purpose of this paper is to examine the strike cost and productivity in. Nigeria. ... Obnoxious Policies: Workers do go on strike when management makes obnoxious ... ASUU had to go on strike; the FGN had rescinded the decision.

  12. Polish Academy of Sciences Great Dictionary of Polish [Wielki słownik języka polskiego PAN

    Directory of Open Access Journals (Sweden)

    Piotr Žmigrodzki

    2014-12-01

    Full Text Available The paper describes a lexicographical project involving the development of the newest general dictionary of the Polish language: the Polish Academy of Sciences Great Dictionary of Polish [Wielki słownik języka polskiego PAN]. The project is coordinated by the Institute of Polish Language at the Polish Academy of Sciences and carried out in collaboration with linguists and lexicographers from several other Polish academic centres. The paper offers a brief description of the genesis of the project and the scope of information included in the dictionary, the organisation of work, the life of the dictionary on the Web as well as the plans for the future.

  13. Forward to the Past: Strikes and Striking as Dialogue by other ...

    African Journals Online (AJOL)

    In Nigeria, from the colonial period to the present, the employment of strikes and protests by nationalists, Nigerian workers and civil society groups has been established as one of the potent means of conveying viewpoints, positions as well as the demand for equality, fairness, social justice and reforms. It has been used as ...

  14. A bird strike handbook for base-level managers

    Science.gov (United States)

    Payson, R. P.; Vance, J. D.

    1984-09-01

    To help develop more awareness about bird strikes and bird strike reduction techniques, this thesis compiled all relevant information through an extensive literature search, review of base-level documents, and personal interviews. The final product--A Bird Strike Handbook for Base-Level Managers--provides information on bird strike statistics, methods to reduce the strike hazards, and means to obtain additional assistance. The handbook is organized for use by six major base agencies: Maintenance, Civil Engineering, Operations, Air Field Management, Safety, and Air Traffic Control. An appendix follows at the end.

  15. Strikes and solidarity: coalfield conflict in Britain, 1889-1966

    Energy Technology Data Exchange (ETDEWEB)

    Roy Church; Quentin Outram [University of East Anglia, Norwich (United Kingdom)

    2002-05-01

    This book investigates the history of strike activity in the British coal mining industry, a byword for industrial militancy since the late nineteenth century. Contents: 1. Interpreting coalfield conflict: focus and formulations; 2. Tradition and modernity: the mining industry 1889-1940; 3. Employers and workers: organizations and strategies; 4. Employers and workers: ideologies, attitudes and political orientations; 5. Configurations of strike activity; 6. Strike participation and solidarity before 1912; 7. Strikes, organization and consciousness in 1912 and after; 8. Conflictual context? The 'isolated mass' revisited; 9. Mining and modernity: size, sectionalism and solidarity; 10. The foundations of strike propensity; 11. Miners and management: agency and action; 12. Industrial relations and strikes after nationalization; 13. International perspectives; 14. Myths and realities: strikes, solidarity and 'militant miners'.

  16. 21 CFR 872.6030 - Oral cavity abrasive polishing agent.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Oral cavity abrasive polishing agent. 872.6030... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Miscellaneous Devices § 872.6030 Oral cavity abrasive polishing agent. (a) Identification. An oral cavity abrasive polishing agent is a device in paste or powder form...

  17. Chemical Mechanical Polishing Optimization for 4H-SiC

    National Research Council Canada - National Science Library

    Neslen, Craig

    2000-01-01

    .... Preliminary chemical mechanical polishing (CMP) studies of 1 3/8" 4H-SiC wafers were performed in an attempt to identify the polishing parameter values that result in a maximum material removal rate and thus reduce substrate polishing time...

  18. Microbiological flora and nail polish: a brief report.

    Science.gov (United States)

    Rayan, G M; Flournoy, D J; Schlageter, P

    1994-11-01

    Removing nail polish and prosthetic nails from operating room (OR) personnel prior to scrubbing and from patients prior to hand surgery is recommended but not practiced in many hospitals. There is concern that nail polish can act as a vehicle for the transfer of infectious agents. This study was designed to determine the incidence of microbiological flora of nail polish in a clinical setting.

  19. Monitoring of Robot Assisted Polishing through parameters of acoustic emission

    DEFF Research Database (Denmark)

    Lazarev, Ruslan; Top, Søren; Bilberg, Arne

    The polishing process is essential for the surface generation of machine tooling components in advanced manufacturing. While robot assisted polishing is faster and more consistent than manual polishing, it can still consume a significant part of ma- chining time and operator presence time...

  20. Polish Qualitative Sociology: The General Features and Development

    OpenAIRE

    Konecki, Krzysztof Tomasz

    2005-01-01

    The article explores the development of Polish qualitative sociology in Poland by presenting its main intellectual routes and some of the general features of Polish sociology. Romanticism and inductionmethod are crucial elements for the development of this discipline in Poland and contribute to its. unigueness. The role of Florian Znaniecki in creating the Polish qualitative sociology is also underlined. Krzysztof Konecki

  1. Professional Training of Economists at Polish Universities

    Science.gov (United States)

    Ogienko, Olena

    2016-01-01

    Polish experience in professional training of economists at university has been generalized. Structural, content and procedural peculiarities of the training have been defined. It has been proved that key factors for reforming economic education in Poland are globalization, internationalization, integration, technologization and informatization.…

  2. Knowledge Mobilisation in the Polish Education System

    Science.gov (United States)

    Fazlagic, Jan; Erkol, Arif

    2015-01-01

    Poland has made substantial progress in improving the quality of its education system in recent years. This paper aims to describe the situation of the Polish education system from a knowledge management perspective and, to some extent, through innovation policies in education. The many challenges, this paper argues, can be tackled only through…

  3. Sexual Health of Polish Athletes with Disabilities

    Directory of Open Access Journals (Sweden)

    Ryszard Plinta

    2015-06-01

    Full Text Available The purpose of this study was to determine sexual functioning of Polish athletes with disabilities (including paralympians. The study encompassed 218 people with physical disabilities, aged between 18 and 45 (149 men and 69 women. The entire research population was divided into three groups: Polish paralympians (n = 45, athletes with disabilities (n = 126 and non-athletes with disabilities (n = 47. The quality of sexual life of Polish paralympians was measured by using the Polish version of Female Sexual Function Index and International Index of Erectile Function. Clinically significant erectile dysfunctions were most often diagnosed in non-athletes (83.33% with 50% result of severe erectile dysfunctions, followed by athletes and paralympians with comparable results of 56.98% and 54.17% respectively (p = 0.00388. Statistically significant clinical sexual dysfunctions concerned lubrication, orgasm as well as pain domains, and prevailed among female non-athletes (68.42%, 68.42% and 57.89%. Practising sports at the highest level has a favourable effect on the sexuality of men and women with physical disabilities. Men with physical disabilities manifest more sexual disorders than women, an aspect which should be considered by health-care professionals working with people with disabilities.

  4. Directory of Polish Officials: A Reference Aid

    Science.gov (United States)

    1989-04-01

    Jan 86 Deputy Director Mondalski, Janusz Aug 83 Polish Steamship Company (Polski Zegluga Morska ) (PZM) Director Andruczyk, Mieczyslaw Jan...2<> Polski Kosciol Chrzescijan Baptystow 12° Polski Linie Oceaniczne ’"- Polski Towarzystwo Ekonomiczne ’’° Polski Zegluga Morska 102 Polski

  5. Polish students’ opinion about medicinal cannabis

    Directory of Open Access Journals (Sweden)

    Rafał Mazur

    2017-09-01

    Conclusions: Polish students seem to be ready for introduction into medical marijuana and are aware of its therapeutic potential. The majority is in favor of sales in a controlled manner. The task of researchers should be accurate examination of the effectiveness of specific cannabinoids in the treatment of diseases.

  6. Transformation of the Polish Banking Sector

    Directory of Open Access Journals (Sweden)

    Marek Stefański

    2009-07-01

    Full Text Available In the post-war period the banking system in Poland underwent two important system transitions: after 1946 and after 1989. The third transformation began after May 1, 2004, but it did not have a systemic character. The Polish banking sector started to operate on the Single European Market. The first part of the paper is devoted to the problems of the banks transformations after 1989 with a special focus on the quantitative development of banks in 19892008, and on subsequent privatisation and consolidation processes. The former intensified in 19891999, and the latter in 19992002. The consolidation process was very noticeable in the sector of cooperative banks after 1994. The second part of the paper includes an economic and financial analysis of the banks. A lot of attention was paid to the liquidity of the banking sector. It was assessed as good, which was confirmed by a short-term rating of Moodys and by the Financial Stability Report 2009, published by the National Bank of Poland in June 2009. The comparison of the net profit of the banking sector in 19972008 shows its dependence on the economic situation and policy. The number of banks with capital adequacy ratio well above the minimum required by the banking supervision is rising. The financial power ratings are not favorable for the domestic banks. The third part of the paper focuses on the development directions of the Polish banking sector. It may be concluded on the basis of the analysis that privatisation and consolidation processes will be continued. They will concentrate on the capital of foreign banks already operating in Poland. As compared with individual foreign banks, the potential of the Polish banking sector is week. The fourth part of the paper focuses on the presentation Polish banking sector in the context of European Union banking sector. The paper finishes with conclusions. Generally, Polish banks have to implement a strategy to enable them to compete on the Single

  7. Surface Roughness and Gloss of Actual Composites as Polished With Different Polishing Systems.

    Science.gov (United States)

    Rodrigues-Junior, S A; Chemin, P; Piaia, P P; Ferracane, J L

    2015-01-01

    This in vitro study evaluated the effect of polishing with different polishing systems on the surface roughness and gloss of commercial composites. One hundred disk-shaped specimens (10 mm in diameter × 2 mm thick) were made with Filtek P-90, Filtek Z350 XT, Opallis, and Grandio. The specimens were manually finished with #400 sandpaper and polished by a single operator using three multistep systems (Superfix, Diamond Pro, and Sof-lex), one two-step system (Polidores DFL), and one one-step system (Enhance), following the manufacturer's instructions. The average surface roughness (μm) was measured with a surface profilometer (TR 200 Surface Roughness Tester), and gloss was measured using a small-area glossmeter (Novo-Curve, Rhopoint Instrumentation, East Sussex, UK). Data were analyzed by two-way analysis of variance and Tukey's test (α=0.05). Statistically significant differences in surface roughness were identified by varying the polishing systems (pGloss was influenced by the composites (pone-step system, Enhance, produced the lowest gloss for all composites. Surface roughness and gloss were affected by composites and polishing systems. The interaction between both also influenced these surface characteristics, meaning that a single polishing system will not behave similarly for all composites. The multistep systems produced higher gloss, while the one-step system produced the highest surface roughness and the lowest gloss of all.

  8. Chemical mechanical glass polishing with cerium oxide: Effect of selected physico-chemical characteristics on polishing efficiency

    Czech Academy of Sciences Publication Activity Database

    Janoš, P.; Ederer, J.; Pilařová, V.; Henych, Jiří; Tolasz, Jakub; Milde, D.; Opletal, T.

    2016-01-01

    Roč. 362, SEP (2016), s. 114-120 ISSN 0043-1648 R&D Projects: GA MŠk(CZ) LM2015073 Institutional support: RVO:61388980 Keywords : Chemical mechanical polishing * Ceria-based polishing powders * Polishing efficienc Subject RIV: CA - Inorganic Chemistry Impact factor: 2.531, year: 2016

  9. Geological Effects on Lightning Strike Distributions

    KAUST Repository

    Berdahl, J. Scott

    2016-05-16

    Recent advances in lightning detection networks allow for detailed mapping of lightning flash locations. Longstanding rumors of geological influence on cloud-to-ground (CG) lightning distribution and recent commercial claims based on such influence can now be tested empirically. If present, such influence could represent a new, cheap and efficient geophysical tool with applications in mineral, hydrothermal and oil exploration, regional geological mapping, and infrastructure planning. This project applies statistical analysis to lightning data collected by the United States National Lightning Detection Network from 2006 through 2015 in order to assess whether the huge range in electrical conductivities of geological materials plays a role in the spatial distribution of CG lightning. CG flash densities are mapped for twelve areas in the contiguous United States and compared to elevation and geology, as well as to the locations of faults, railroads and tall towers including wind turbines. Overall spatial randomness is assessed, along with spatial correlation of attributes. Negative and positive polarity lightning are considered separately and together. Topography and tower locations show a strong influence on CG distribution patterns. Geology, faults and railroads do not. This suggests that ground conductivity is not an important factor in determining lightning strike location on scales larger than current flash location accuracies, which are generally several hundred meters. Once a lightning channel is established, however, ground properties at the contact point may play a role in determining properties of the subsequent stroke.

  10. STUDY OF POLISHING AISI 316L WITH STRUCTURED ABRASIVE

    Directory of Open Access Journals (Sweden)

    François GOOSSENS

    2015-05-01

    Full Text Available Finishing process like polishing is usually used to obtain high quality mechanical surface characteristics such as texture and roughness. These operations are mainly handmade and need highly trained operators thus limiting their repeatability and profitability. To optimize the industrialization of the polishing process, it is therefore necessary to modelize the process to built efficient parameter database. The aim of this study is to characterise the polishing of 316L stainless steel with structured abrasive belts. The geometric data of the belts are given, and we then propose a model to determine material removal. An experimental test bench is set up to test this model and characterise the polishing process in terms of forces. It produces samples for different polishing conditions. The different polished surfaces are then analyzed thanks to the roughness and the wettability. Using experimental designs, we are able to validate the proposed model and identify the parameters that influence a polishing operation.

  11. Preventive strike vs. false targets and protection in defense strategy

    International Nuclear Information System (INIS)

    Levitin, Gregory; Hausken, Kjell

    2011-01-01

    A defender allocates its resource between defending an object passively and striking preventively against an attacker seeking to destroy the object. With no preventive strike the defender distributes its entire resource between deploying false targets, which the attacker cannot distinguish from the genuine object, and protecting the object. If the defender strikes preventively, the attacker's vulnerability depends on its protection and on the defender's resource allocated to the strike. If the attacker survives, the object's vulnerability depends on the attacker's revenge attack resource allocated to the attacked object. The optimal defense resource distribution between striking preventively, deploying the false targets and protecting the object is analyzed. Two cases of the attacker strategy are considered: when the attacker attacks all of the targets and when it chooses a number of targets to attack. An optimization model is presented for making a decision about the efficiency of the preventive strike based on the estimated attack probability, dependent on a variety of model parameters.

  12. Children on hunger strike: child abuse or legitimate protest?

    OpenAIRE

    Mok, A.; Nelson, E. A.; Murphy, J.; Hampson, A.; Hendriks, J. H.

    1996-01-01

    The issue of children on hunger strike (voluntary total fasting) has not been reported before. The World Medical Association Declaration of Tokyo 1975 and the Declaration of Malta 1991 (revised 1992) provide clinicians with guidelines for the management of adult patients on hunger strike but do not mention children. We report the management of 14 Vietnamese children, aged 1 to 12 years, who took part in a hunger strike at a refugee detention centre in Hong Kong.

  13. The effect of hand dominance on martial arts strikes.

    Science.gov (United States)

    Neto, Osmar Pinto; Silva, Jansen Henrique; Marzullo, Ana Carolina de Miranda; Bolander, Richard P; Bir, Cynthia A

    2012-08-01

    The main goal of this study was to compare dominant and non-dominant martial arts palm strikes under different circumstances that usually happen during martial arts and combative sports applications. Seven highly experienced (10±5 years) right hand dominant Kung Fu practitioners performed strikes with both hands, stances with left or right lead legs, and with the possibility or not of stepping towards the target (moving stance). Peak force was greater for the dominant hand strikes (1593.76±703.45 N vs. 1042.28±374.16 N; p<.001), whereas no difference was found in accuracy between the hands (p=.141). Additionally, peak force was greater for the strikes with moving stance (1448.75±686.01 N vs. 1201.80±547.98 N; p=.002) and left lead leg stance (1378.06±705.48 N vs. 1269.96±547.08 N). Furthermore, the difference in peak force between strikes with moving and stationary stances was statistically significant only for the strikes performed with a left lead leg stance (p=.007). Hand speed was higher for the dominant hand strikes (5.82±1.08 m/s vs. 5.24±0.78 m/s; p=.001) and for the strikes with moving stance (5.79±1.01 m/s vs. 5.29±0.90 m/s; p<.001). The difference in hand speed between right and left hand strikes was only significant for strikes with moving stance. In summary, our results suggest that the stronger palm strike for a right-handed practitioner is a right hand strike on a left lead leg stance moving towards the target. Copyright © 2011 Elsevier B.V. All rights reserved.

  14. Foot strike patterns after obstacle clearance during running.

    Science.gov (United States)

    Scholten, Shane D; Stergiou, Nicholas; Hreljac, Alan; Houser, Jeremy; Blanke, Daniel; Alberts, L Russell

    2002-01-01

    Running over obstacles of sufficient height requires heel strike (HS) runners to make a transition in landing strategy to a forefoot (FF) strike, resulting in similar ground reaction force patterns to those observed while landing from a jump. Identification of the biomechanical variables that distinguish between the landing strategies may offer some insight into the reasons that the transition occurs. The purpose of this study was to investigate the difference in foot strike patterns and kinetic parameters of heel strike runners between level running and running over obstacles of various heights. Ten heel strike subjects ran at their self-selected pace under seven different conditions: unperturbed running (no obstacle) and over obstacles of six different heights (10%, 12.5%, 15%, 17.5%, 20%, and 22.5% of their standing height). The obstacle was placed directly before a Kistler force platform. Repeated measures ANOVAs were performed on the subject means of selected kinetic parameters. The statistical analysis revealed significant differences (P strike patterns were affected by the increased obstacle height. Between the 12.5% and 15% obstacle conditions, the group response changed from a heel strike to a forefoot strike pattern. At height > 15%, the pattern was more closely related to the foot strike patterns found in jumping activities. This strategy change may represent a gait transition effected as a mechanism to protect against increased impact forces. Greater involvement of the ankle and the calf muscles could have assisted in attenuating the increased impact forces while maintaining speed after clearing the obstacle.

  15. Debunking the viper's strike: harmless snakes kill a common assumption.

    Science.gov (United States)

    Penning, David A; Sawvel, Baxter; Moon, Brad R

    2016-03-01

    To survive, organisms must avoid predation and acquire nutrients and energy. Sensory systems must correctly differentiate between potential predators and prey, and elicit behaviours that adjust distances accordingly. For snakes, strikes can serve both purposes. Vipers are thought to have the fastest strikes among snakes. However, strike performance has been measured in very few species, especially non-vipers. We measured defensive strike performance in harmless Texas ratsnakes and two species of vipers, western cottonmouths and western diamond-backed rattlesnakes, using high-speed video recordings. We show that ratsnake strike performance matches or exceeds that of vipers. In contrast with the literature over the past century, vipers do not represent the pinnacle of strike performance in snakes. Both harmless and venomous snakes can strike with very high accelerations that have two key consequences: the accelerations exceed values that can cause loss of consciousness in other animals, such as the accelerations experienced by jet pilots during extreme manoeuvres, and they make the strikes faster than the sensory and motor responses of mammalian prey and predators. Both harmless and venomous snakes can strike faster than the blink of an eye and often reach a target before it can move. © 2016 The Author(s).

  16. Emissions from the Polish power industry

    International Nuclear Information System (INIS)

    Uliasz-Bochenczyk, Alicja; Mokrzycki, Eugeniusz

    2007-01-01

    Poland is a country where power and heat energy production is based on conventional fuel combustion, above all hard coal and lignite. In power plants and combined heat and power plants, fossil fuel combustion results in emitting to the atmosphere first of all SO 2 , NO x , CO, particulate matter, greenhouse gases for instance N 2 O and CO 2 . For many years the Polish power industry has tried to reduce the emission of air contaminants to the atmosphere. The reduction is feasible on account of various methods of emission reduction, which have been advanced and applied for many years. The paper presents conventional fuels used in the Polish professional power industry, as well as the principal emission types occurring there for the last 10 years and the undertaken reduction measures

  17. Chemical polishing of epitoxial silicon wafer

    International Nuclear Information System (INIS)

    Osada, Shohei

    1978-01-01

    SSD telescopes are used for the determination of the kind and energy of charged particles produced by nuclear reactions, and are the equipments combining ΔE counters and E counters. The ΔE counter is a thin SSD which is required to be thin and homogeneous enough to get the high resolution of measurement. The SSDs for ΔE counters have so far been obtained by polishing silicon plates mechanically and chemically or by applying electrolytic polishing method on epitaxial silicon wafers, but it was very hard to obtain them. The creative etching equipment and technique developed this time make it possible to obtain thin SSDs for ΔE counters. The outline of the etching equipment and its technique are described in the report. The etching technique applied for the silicon films for ΔE counters with thickness of about 10 μm was able to be experimentally established in this study. (Kobatake, H.)

  18. Polish normalization of the Body Esteem Scale

    Directory of Open Access Journals (Sweden)

    Małgorzata Lipowska

    2014-02-01

    Full Text Available Background Physical attractiveness plays an important part in one’s social functioning. The interest in one’s own appearance have been documented as widespread among the female population, but over the recent years it is more and more often emphasized that concentrating on body appearance concerns men as well. Franzoi and Shields (1984 created the Body Esteem Scale which allows to qualify the subject’s attitude towards his or her own body. The aim of the study was to create a Polish version of the Body Esteem Scale along with the norms for age and sex clusters. Participants and procedure The normalization sample consisted of 4298 participants: 1865 women aged 16 to 80 (M = 29.92; SD = 12.85 and 2433 men aged 16 to 78 (M = 28.74; SD = 11.50. Education levels among the participants were also controlled for. In order to create a Polish version of the Body Esteem Scale, translation was adopted as the adaptation strategy. Like the original one, the Polish scale comprises 35 items grouped into three gender specific subscales. The subscales for women include Sexual Attractiveness, Weight Concern, and Physical Condition, whereas the body esteem of is examined with regards to Physical Attractiveness, Upper Body Strength, and Physical Condition. Results Reliability of subscales was high both for females (Cronbach’s alpha from 0.80 to 0.89 and males (Cronbach’s alpha from 0.85 to 0.88. The given coefficients of reliability cover the original division into subscales adopted by the authors of BES. Conclusions We confirmed high reliability of the Polish version of the Body Esteem Scale, thus we recommend it as a diagnostic tool. Created norms allowed to refer results obtained in the course of research carried out on people with various disorders (e.g. eating disorders or body dysmorphic disorder with population data for corresponding age brackets.

  19. Robotic Automation in Computer Controlled Polishing

    Science.gov (United States)

    Walker, D. D.; Yu, G.; Bibby, M.; Dunn, C.; Li, H.; Wu, Y.; Zheng, X.; Zhang, P.

    2016-02-01

    We first present a Case Study - the manufacture of 1.4 m prototype mirror-segments for the European Extremely Large Telescope, undertaken by the National Facility for Ultra Precision Surfaces, at the OpTIC facility operated by Glyndwr University. Scale-up to serial-manufacture demands delivery of a 1.4 m off-axis aspheric hexagonal segment with surface precision robots and computer numerically controlled ('CNC') polishing machines for optical fabrication. The objective was not to assess which is superior. Rather, it was to understand for the first time their complementary properties, leading us to operate them together as a unit, integrated in hardware and software. Three key areas are reported. First is the novel use of robots to automate currently-manual operations on CNC polishing machines, to improve work-throughput, mitigate risk of damage to parts, and reduce dependence on highly-skilled staff. Second is the use of robots to pre-process surfaces prior to CNC polishing, to reduce total process time. The third draws the threads together, describing our vision of the automated manufacturing cell, where the operator interacts at cell rather than machine level. This promises to deliver a step-change in end-to-end manufacturing times and costs, compared with either platform used on its own or, indeed, the state-of-the-art used elsewhere.

  20. ROUGHNESS ANALYSIS OF VARIOUSLY POLISHED NIOBIUM SURFACES

    Energy Technology Data Exchange (ETDEWEB)

    Ribeill, G.; Reece, C.

    2008-01-01

    Niobium superconducting radio frequency (SRF) cavities have gained widespread use in accelerator systems. It has been shown that surface roughness is a determining factor in the cavities’ effi ciency and maximum accelerating potential achievable through this technology. Irregularities in the surface can lead to spot heating, undesirable local electrical fi eld enhancement and electron multipacting. Surface quality is typically ensured through the use of acid etching in a Buffered Chemical Polish (BCP) bath and electropolishing (EP). In this study, the effects of these techniques on surface morphology have been investigated in depth. The surface of niobium samples polished using different combinations of these techniques has been characterized through atomic force microscopy (AFM) and stylus profi lometry across a range of length scales. The surface morphology was analyzed using spectral techniques to determine roughness and characteristic dimensions. Experimentation has shown that this method is a valuable tool that provides quantitative information about surface roughness at different length scales. It has demonstrated that light BCP pretreatment and lower electrolyte temperature favors a smoother electropolish. These results will allow for the design of a superior polishing process for niobium SRF cavities and therefore increased accelerator operating effi ciency and power.

  1. A decade of U.S. Air Force bat strikes

    Science.gov (United States)

    Peurach, Suzanne C.; Dove, Carla J.; Stepko, Laura

    2009-01-01

    From 1997 through 2007, 821 bat strikes were reported to the U.S. Air Force (USAF) Safety Center by aircraft personnel or ground crew and sent to the National Museum of Natural History, Smithsonian Institution, for identification. Many samples were identified by macroscopic and or microscopic comparisons with bat specimens housed in the museum and augmented during the last 2 years by DNA analysis. Bat remains from USAF strikes during this period were received at the museum from 40 states in the United States and from 20 countries. We confirmed that 46% of the strikes were caused by bats, but we did not identify them further; we identified 5% only to the family or genus level, and 49% to the species level. Fifty-five of the 101 bat-strike samples submitted for DNA analysis have been identified to the species level. Twenty-five bat species have been recorded striking USAF planes worldwide. The Brazilian free-tailed bat (Tadarida brasiliensis; n = 173) is the species most commonly identified in USAF strike impacts, followed by the red bat (Lasiurus borealis; n = 83). Bat strikes peak during the spring and fall, with >57% occurring from August through October; 82% of the reports that included time of strike were recorded between 2100 and 0900 hours. More than 12% of the bat strikes were reported at >300 m above ground level (AGL). Although $825,000 and >50% of this sum was attributable to 5 bat-strike incidents. Only 5 bats from the 10 most damaging bat strikes were identified to the species level, either because we did not receive remains with the reports or the sample was insufficient for identification.

  2. Effects of polishing procedures on color stability of composite resins

    Directory of Open Access Journals (Sweden)

    Ahmet Umut Güler

    2009-04-01

    Full Text Available The purpose of this study was to investigate the effect of different polishing methods on color stability of posterior, universal and nanohybrid composite resin restorative materials upon exposure to a staining agent. Twenty-five specimens were prepared for each of 5 different composite resins (Filtek Z250, Filtek P60, Quadrant LC, Grandio and Filtek Supreme. Specimens were divided into 5 groups and different polishing procedures, including polishing discs (Pd, polishing discs then diamond polishing paste (PdP, polishing discs then a liquid polishing system (Biscover (PdB, and combinations of these (PdPB were used. Unpolished specimens served as the control (C. The specimens were stored for 48 h in a coffee solution. The color of all specimens was measured before and after exposure with a colorimeter, and total color change (DE* were calculated. The data were analyzed with a two-way ANOVA and the means were compared by Tukey HSD test (a=0.05. The lowest color difference was observed in the groups PdP and C, while the highest color difference was observed in PdPB, and PdB. When comparing the five different restorative materials, no significant difference was observed between FiltekP60 and FiltekZ250, and these materials demonstrated significantly less color change than Quadrant LC and the nanohybrid materials (Grandio, Filtek Supreme. The posterior (Filtek P60 and universal (Filtek Z250 composite resin restorative materials, which do not contain tetraethyleneglycol dimethacrylate (TEGDMA, were found to be less stainable than the nanohybrid (Grandio, Filtek Supreme and universal (Quadrant LC composite resins, which contain TEGDMA. The use of diamond polishing paste after polishing with polishing discs significantly decreased staining when compared to the groups that used polishing discs alone, for all restorative materials tested. The highest color change values were obtained for the specimens that were polished with the Biscover liquid polish

  3. Martial arts striking hand peak acceleration, accuracy and consistency.

    Science.gov (United States)

    Neto, Osmar Pinto; Marzullo, Ana Carolina De Miranda; Bolander, Richard P; Bir, Cynthia A

    2013-01-01

    The goal of this paper was to investigate the possible trade-off between peak hand acceleration and accuracy and consistency of hand strikes performed by martial artists of different training experiences. Ten male martial artists with training experience ranging from one to nine years volunteered to participate in the experiment. Each participant performed 12 maximum effort goal-directed strikes. Hand acceleration during the strikes was obtained using a tri-axial accelerometer block. A pressure sensor matrix was used to determine the accuracy and consistency of the strikes. Accuracy was estimated by the radial distance between the centroid of each subject's 12 strikes and the target, whereas consistency was estimated by the square root of the 12 strikes mean squared distance from their centroid. We found that training experience was significantly correlated to hand peak acceleration prior to impact (r(2)=0.456, p =0.032) and accuracy (r(2)=0. 621, p=0.012). These correlations suggest that more experienced participants exhibited higher hand peak accelerations and at the same time were more accurate. Training experience, however, was not correlated to consistency (r(2)=0.085, p=0.413). Overall, our results suggest that martial arts training may lead practitioners to achieve higher striking hand accelerations with better accuracy and no change in striking consistency.

  4. Orthotic intervention in forefoot and rearfoot strike running patterns.

    Science.gov (United States)

    Stackhouse, Carrie Laughton; Davis, Irene McClay; Hamill, Joseph

    2004-01-01

    To compare the differential effect of custom orthoses on the lower extremity mechanics of a forefoot and rearfoot strike pattern. Fifteen subjects ran with both a forefoot and a rearfoot strike pattern with and without orthoses. Lower extremity kinematic and kinetic variables were compared between strike pattern and orthotic conditions. Foot orthoses have been shown to be effective in controlling excessive rearfoot motion in rearfoot strikers. The effect of orthotic intervention on rearfoot motion in forefoot strikers has not been previously reported. Five trials were collected for each condition. Peak rearfoot eversion, eversion excursion, eversion velocity, peak inversion moment, and inversion work were compared between conditions. Kinematic variables in the sagittal plane of the rearfoot and in the frontal and sagittal plane of the knee were also determined. Increased rearfoot excursions and velocities and decreased peak eversion were noted in the forefoot strike pattern compared to the rearfoot strike pattern. Orthotic intervention, however,did not significantly change rearfoot motion in either strike pattern. Reductions in internal rotation and abduction of the knee were noted with orthotic intervention. Foot orthoses do not differentially effect rearfoot motion of a rearfoot strike and a forefoot strike running pattern. Orthotic intervention has a larger and more systematic effect on rearfoot kinetics compared to rearfoot kinematics.

  5. Teaching Striking Skills in Elementary Physical Education Using Woodball

    Science.gov (United States)

    Chang, Seung Ho; Lee, Jihyun

    2017-01-01

    Object control (OC) skills are a part of fundamental motor skills and basic functional skills, which work as a prerequisite to becoming a skilled performer in many sports. Of various OC skills, striking is one of the most difficult to master due to a variety of interrelated movement components. A form of vertical or underarm striking is a more…

  6. Job satisfaction of occupational medicine nurses in Poland.

    Science.gov (United States)

    Sakowski, Piotr

    2012-03-01

    The study aimed at assessment of the Polish occupational medicine service system after over ten years of functioning in the current shape, made by occupational nurses. The article focuses on the job satisfaction level among Polish occupational medicine nurses. The survey was performed among 600 randomly selected occupational medicine nurses, registered in the regional occupational medicine centers. A questionnaire, designed by the research team, containing several questions concerning different aspects of OMS system assessment, including a part dedicated to job satisfaction assessment, was sent to the selected occupational nurses. The response rate was 33.3% (200 questionnaires). The survey shows a relatively high satisfaction level in case of five out of eleven investigated job aspects, and a very low satisfaction level in case of two of them ("Possibility of professional promotion", "Salary"). 26% of the OMS nurses had considered going abroad to work as a nurse in the general health care system, and 17% in the OHS system. Almost 25% of them would not choose a profession of an occupational nurse once again, including 10% who would not choose a nurse job at all. There is a statistically significant correlation between the general job satisfaction and satisfaction with other aspects of nursing work. A strong correlation was observed in case of "Scope of performed tasks" and "Cooperation with employers (clients of the occupational medicine service units)". There is a statistically significant correlation of average strength between the decision concerning choosing an occupational nurse job in case of taking a decision on professional carrier once again and "General job satisfaction". Polish occupational nurses are satisfied with their job, however only 26% are fully satisfied. In their work there is place for improvement. The areas which definitely need attention and improvement are "Possibility of professional promotion" and "Salary". Improvements in cooperation

  7. Strike kinematics and performance in juvenile ball pythons (Python regius).

    Science.gov (United States)

    Ryerson, William G; Tan, Weimin

    2017-08-01

    The rapid strike of snakes has interested researchers for decades. Although most work has focused on the strike performance of vipers, recent work has shown that other snakes outside of the Viperidae can strike with the same velocities and accelerations. However, to date all of these examples focus on performance in adult snakes. Here, we use high-speed video to measure the strike kinematics and performance of 10 juvenile (pythons, Python regius. We find that juvenile P. regius strike at levels comparable to larger snakes, but with shorter durations and over shorter distances. We conclude that the juvenile P. regius maintain performance likely through manipulation of the axial musculature and accompanying elastic tissues, and that this is a first step to understanding ontogenetic changes in behavior and a potential avenue for understanding how captivity may also impact behavior. © 2017 Wiley Periodicals, Inc.

  8. Strike Point Control on EAST Using an Isoflux Control Method

    International Nuclear Information System (INIS)

    Xing Zhe; Xiao Bingjia; Luo Zhengping; Walker, M. L.; Humphreys, D. A.

    2015-01-01

    For the advanced tokamak, the particle deposition and thermal load on the divertor is a big challenge. By moving the strike points on divertor target plates, the position of particle deposition and thermal load can be shifted. We could adjust the Poloidal Field (PF) coil current to achieve the strike point position feedback control. Using isoflux control method, the strike point position can be controlled by controlling the X point position. On the basis of experimental data, we establish relational expressions between X point position and strike point position. Benchmark experiments are carried out to validate the correctness and robustness of the control methods. The strike point position is successfully controlled following our command in the EAST operation. (paper)

  9. Expertise of using striking techniques for power stroke in badminton.

    Science.gov (United States)

    Zhu, Qin

    2013-10-01

    Two striking techniques (fast swing and angled striking) were examined to see if they allowed effective use of string tension for the power stroke in badminton. 12 participants (4 novices, 4 recreational, and 4 expert badminton players) were recorded by a fast-speed camera while striking a shuttlecock with racquets of 8 different string tensions. The peak speed of the shuttlecock, the racquet angle and the shuttlecock angle were analyzed. The results showed that expert players succeeded in using both striking techniques to overcome the constraint of string tension and produce a consistently superior stroke. Failure to use either striking technique resulted in inferior performance that was constrained by string tension. Expertise in badminton allows the necessary motor adjustments based on the affordance perception of the string tension.

  10. Wavelet transform analysis of electromyography kung fu strikes data.

    Science.gov (United States)

    Neto, Osmar Pinto; Marzullo, Ana Carolina de Miranda

    2009-11-01

    In martial arts and contact sports strikes are performed at near maximum speeds. For that reason, electromyography (EMG) analysis of such movements is non-trivial. This paper has three main goals: firstly, to investigate the differences in the EMG activity of muscles during strikes performed with and without impacts; secondly, to assess the advantages of using Sum of Significant Power (SSP) values instead of root mean square (rms) values when analyzing EMG data; and lastly to introduce a new method of calculating median frequency values using wavelet transforms (WMDF). EMG data of the deltoid anterior (DA), triceps brachii (TB) and brachioradialis (BR) muscles were collected from eight Kung Fu practitioners during strikes performed with and without impacts. SSP results indicated significant higher muscle activity (p = 0.023) for the strikes with impact. WMDF results, on the other hand, indicated significant lower values (p = 0. 007) for the strikes with impact. SSP results presented higher sensitivity than rms to quantify important signal differences and, at the same time, presented lower inter-subject coefficient of variations. The result of increase in SSP values and decrease in WMDF may suggest better synchronization of motor units for the strikes with impact performed by the experienced Kung Fu practitioners. Key PointsThe results show higher muscle activity and lower electromyography median frequencies for strikes with impact compared to strikes without.SSP results presented higher sensitivity and lower inter-subject coefficient of variations than rms results.Kung Fu palm strikes with impact may present better motor units' synchronization than strikes without.

  11. Copenhagen Psychosocial Questionnaire (COPSOQ – Psychometric properties of selected scales in the Polish version

    Directory of Open Access Journals (Sweden)

    Maria Widerszal-Bazyl

    2017-06-01

    Full Text Available Background: The Copenhagen Psychosocial Questionniare (COPSOQ has many advantages as compared to other similar instruments, i.a., it is not related to one single theoretical model and it measures a wide spectrum of psychosocial working conditions that have shown proven impact on health. The aim of the article is to summarize information on psychometric properties of 11 scales in the Polish version: Quantitative Demands, Emotional Demands, Influence at Work, Social Support, Possibilities for Development, Meaning of Work, Role Clarity, Quality of Leadership, Job Insecurity, Job Satisfaction, and General Health. Material and Methods: Analyses were based on the results of 4 research projects, in which the Polish version of the COPCOQ scales has been used: on a representative sample of Polish nurses (N = 4354, job insecurity in 2 groups of civil servants (N = 295, N = 724, mobbing among teachers (N = 1037 and psychological consequences of restructuring (N = 1396. The following psychometric characteristics were analysed: internal reliability, theoretical validity, and factorial validity. Results: Internal reliability of the following 8 scales was found satisfactory: Quantitative Demands, Influence at Work, Social Support, Possibilities for Development, Meaning of Work, Quality of Leadership, Job Satisfaction, and General Health (Cronbach’s α = 0.7–0.91, depending on the scale. The results of exploratory factor analyses indicated factorial separateness of the above mentioned scales. Theoretical validity of 11 scales was confirmed; they were associated with variables that can be regarded as their validity criteria. Conclusions: The 8 COPSOQ scales, in the Polish version, can be recommended for using in the research involving psychosocial job characteristics. Mean scores on these scales and standard deviations given in the article can serve as reference points during an evaluation of received results. Med Pr 2017;68(3:329–348

  12. The Teacher Strike: School District Protection Procedures. A Manual for School District Officials on How to Handle a Teachers' Strike.

    Science.gov (United States)

    Igoe, Joseph A.; DiRocco, Anthony P.

    This booklet is designed to give practical and realistic advice to school district officials faced with the possibility of a teachers' strike. It is intended for use both by school district administrators and school board members. The booklet is organized into four sections that focus in turn on signs of a pending teachers' strike, union…

  13. Tribological approach to study polishing of road surface under traffic

    OpenAIRE

    KANE, Malal; DO, Minh Tan

    2007-01-01

    The polishing phenomenon of road pavements under the vehicle traffic constitutes the main mechanism inherent to the loss of skid resistance over time. A better understanding of this phenomenon would allow an improvement of road safety. This study comprises a review of laboratory test and a model simulating the polishing of road surfaces. The laboratory test uses a polishing machine so called 'Wehner-Schulze' which can reproduce the evolution of the road texture from specimens taken directly f...

  14. Polish Phoneme Statistics Obtained On Large Set Of Written Texts

    Directory of Open Access Journals (Sweden)

    Bartosz Ziółko

    2009-01-01

    Full Text Available The phonetical statistics were collected from several Polish corpora. The paper is a summaryof the data which are phoneme n-grams and some phenomena in the statistics. Triphonestatistics apply context-dependent speech units which have an important role in speech recognitionsystems and were never calculated for a large set of Polish written texts. The standardphonetic alphabet for Polish, SAMPA, and methods of providing phonetic transcriptions are described.

  15. Polish Qualitative Sociology: The General Features and Development

    OpenAIRE

    Konecki, Krzysztof Tomasz; Kacperczyk, Anna; Marciniak, Łukasz

    2005-01-01

    Forum Qualitative Sozialforschung / Forum: Qualitative Social Research,2005, 6(3) The article explores the development of Polish qualitative sociology in Poland by presenting its main intellectual routes and some of the general features of Polish sociology. Romanticism and inductionmethod are crucial elements for the development of this discipline in Poland and contribute to its. unigueness. The role of Florian Znaniecki in creating the Polish qualitative sociology is also underlined.

  16. Assessing operability of a novel polisher arrangement using MMS

    International Nuclear Information System (INIS)

    Shor, S.W.W.

    1987-01-01

    A condensate polisher is intended to remove both particulate matter and ionic material from the condensate. Condensate polishers have normally been placed directly in the condensate system downstream of the condensate pumps. This inline location has certain disadvantages. These disadvantages are discussed. Placing the polisher in a sidestream location, where water is removed from the condensate system, pumped through the polisher, and then returned to the condensate system provides a solution to these disadvantages. Several possible types of sidestream installations is described. This has a polisher taking unpolished condensate from one compartment from one compartment of a divided hotwell in a specially modified condenser and returning polished condensate to the other compartment. The polisher is supplied by its own dedicated pumps, which have a head requirement sufficient only to overcome the pressure drop through the polisher circuit at a flow rate of 110% of maximum condensate flow. This concept is very attractive but has not yet been tested even though it is being installed in several new units. A simulation was, therefore, performed using MMS to provide confidence that this particular sidestream polisher arrangement was operationally viable

  17. Determine the Foot Strike Pattern Using Inertial Sensors

    Directory of Open Access Journals (Sweden)

    Tzyy-Yuang Shiang

    2016-01-01

    Full Text Available From biomechanical point of view, strike pattern plays an important role in preventing potential injury risk in running. Traditionally, strike pattern determination was conducted by using 3D motion analysis system with cameras. However, the procedure is costly and not convenient. With the rapid development of technology, sensors have been applied in sport science field lately. Therefore, this study was designed to determine the algorithm that can identify landing strategies with a wearable sensor. Six healthy male participants were recruited to perform heel and forefoot strike strategies at 7, 10, and 13 km/h speeds. The kinematic data were collected by Vicon 3D motion analysis system and 2 inertial measurement units (IMU attached on the dorsal side of both shoes. The data of each foot strike were gathered for pitch angle and strike index analysis. Comparing the strike index from IMU with the pitch angle from Vicon system, our results showed that both signals exhibited highly correlated changes between different strike patterns in the sagittal plane (r=0.98. Based on the findings, the IMU sensors showed potential capabilities and could be extended beyond the context of sport science to other fields, including clinical applications.

  18. Slower nicotine metabolism among postmenopausal Polish smokers.

    Science.gov (United States)

    Kosmider, Leon; Delijewski, Marcin; Koszowski, Bartosz; Sobczak, Andrzej; Benowitz, Neal L; Goniewicz, Maciej L

    2018-06-01

    A non-invasive phenotypic indicator of the rate of nicotine metabolism is nicotine metabolite ratio (NMR) defined as a ratio of two major metabolites of nicotine - trans-3'-hydroxycotinine/cotinine. The rate of nicotine metabolism has important clinical implications for the likelihood of successful quitting with nicotine replacement therapy (NRT). We conducted a study to measure NMR among Polish smokers. In a cross-sectional study of 180 daily cigarette smokers (42% men; average age 34.6±13.0), we collected spot urine samples and measured trans-3'-hydroxycotinine (3-HC) and cotinine levels with LC-MS/MS method. We calculated NMR (molar ratio) and analyzed variations in NMR among groups of smokers. In the whole study group, an average NMR was 4.8 (IQR 3.4-7.3). The group of women below 51 years had significantly greater NMR compared to the rest of the population (6.4; IQR 4.1-8.8 vs. 4.3; IQR 2.8-6.4). No differences were found among group ages of male smokers. This is a first study to describe variations in nicotine metabolism among Polish smokers. Our findings indicate that young women metabolize nicotine faster than the rest of population. This finding is consistent with the known effects of estrogen to induce CYP2A6 activity. Young women may require higher doses of NRT or non-nicotine medications for most effective smoking cessation treatment. Copyright © 2017 Institute of Pharmacology, Polish Academy of Sciences. Published by Elsevier B.V. All rights reserved.

  19. Plasma electrolytic polishing of metalized carbon fibers

    Directory of Open Access Journals (Sweden)

    Falko Böttger-Hiller

    2016-02-01

    Full Text Available Efficient lightweight structures require intelligent materials that meet versatile functions. Especially, carbon-fiber-reinforced polymers (CFRPs are gaining relevance. Their increasing use aims at reducing energy consumption in many applications. CFRPs are generally very light in weight, while at the same time being extremely stiff and strong (specific strength: CFRPs: 1.3 Nm kg–1, steel: 0.27 Nm kg–1; specific stiffness: CFRPs: 100 Nm kg–1, steel: 25 Nm kg–1. To increase performance and especially functionality of CFRPs, the integration of microelectronic components into CFRP parts is aspired. The functionalization by sensors, actuators and electronics can enable a high lightweight factor and a new level of failure-safety. The integration of microelectronic components for this purpose requires a working procedure to provide electrical contacts for a reliable connection to energy supply and data interfaces. To overcome this challenge, metalized carbon fibers are used. Metalized fibers are, similar to the usual reinforcing fibers, able to be soldered and therefore easy to incorporate into CFRPs. Unfortunately, metalized fibers have to be pre-treated by flux-agents. Until now, there is no flux which is suitable for mass production without destroying the polymer of the CFRP. The process of plasma electrolytic polishing (PeP could be an option, but is so far not available for copper. Thus, in this study, plasma electrolytic polishing is transferred to copper and its alloys. To achieve this, electrolytic parameters as well as the electrical setup are adapted. It can be observed that the gloss and roughness can be adjusted by means of this procedure. Finally, plasma electrolytic polishing is used to treat thin copper layers on carbon fibers.

  20. An Unbiased View of the History of Polish Medical Physics by a Senior Polish Medical Physicist

    International Nuclear Information System (INIS)

    Chomicki, O. A.

    2008-01-01

    Here is a story told by Maria Sklodowska-Curie at the meeting of the International Committee of Intellectual Cooperation in 1921: 'In a free literary competition on the role and importance of elephants the Englishman's story was 'My adventures while shooting elephants in South Africa', the Frenchman was more concerned with 'The sexual and erotic life of elephants', while the Polish approach was invariably 'The elephant versus Poland's national independence', which seemed quite understandable in the light of over 120 years when Poland was partitioned and lost its independence. Since then this saying has become proverbial and came to express the unmistakably Polish tendency to see everything in terms of Polish interests. In my remarks and reminiscences on the history of the Polish Society of Medical Physics you will quickly recognize the same tendency. First, I will, among other things, try to open some old cupboards to 'produce good [things] from the store of good' (Matthew 12:35), especially concerning the first few years of the activity in medical physics in Poland, and second, I will draw some conclusions and/or offer suggestions based on what a senior medical physicist has seen for more than 50 years of his activity in this field. (author)

  1. Terminology extraction from medical texts in Polish.

    Science.gov (United States)

    Marciniak, Małgorzata; Mykowiecka, Agnieszka

    2014-01-01

    Hospital documents contain free text describing the most important facts relating to patients and their illnesses. These documents are written in specific language containing medical terminology related to hospital treatment. Their automatic processing can help in verifying the consistency of hospital documentation and obtaining statistical data. To perform this task we need information on the phrases we are looking for. At the moment, clinical Polish resources are sparse. The existing terminologies, such as Polish Medical Subject Headings (MeSH), do not provide sufficient coverage for clinical tasks. It would be helpful therefore if it were possible to automatically prepare, on the basis of a data sample, an initial set of terms which, after manual verification, could be used for the purpose of information extraction. Using a combination of linguistic and statistical methods for processing over 1200 children hospital discharge records, we obtained a list of single and multiword terms used in hospital discharge documents written in Polish. The phrases are ordered according to their presumed importance in domain texts measured by the frequency of use of a phrase and the variety of its contexts. The evaluation showed that the automatically identified phrases cover about 84% of terms in domain texts. At the top of the ranked list, only 4% out of 400 terms were incorrect while out of the final 200, 20% of expressions were either not domain related or syntactically incorrect. We also observed that 70% of the obtained terms are not included in the Polish MeSH. Automatic terminology extraction can give results which are of a quality high enough to be taken as a starting point for building domain related terminological dictionaries or ontologies. This approach can be useful for preparing terminological resources for very specific subdomains for which no relevant terminologies already exist. The evaluation performed showed that none of the tested ranking procedures were

  2. "Thunderstruck": penetrating thoracic injury from lightning strike.

    Science.gov (United States)

    van Waes, Oscar J F; van de Woestijne, Pieter C; Halm, Jens A

    2014-04-01

    Lightning strike victims are rarely presented at an emergency department. Burns are often the primary focus. This case report describes the improvised explosive device like-injury to the thorax due to lightning strike and its treatment, which has not been described prior in (kerauno)medicine. Penetrating injury due to blast from lightning strike is extremely rare. These "shrapnel" injuries should however be ruled out in all patients struck by lightning. Copyright © 2013 American College of Emergency Physicians. Published by Mosby, Inc. All rights reserved.

  3. Physicians' strikes and the competing bases of physicians' moral obligations.

    Science.gov (United States)

    MacDougall, D Robert

    2013-09-01

    Many authors have addressed the morality of physicians' strikes on the assumption that medical practice is morally different from other kinds of occupations. This article analyzes three prominent theoretical accounts that attempt to ground such special moral obligations for physicians--practice-based accounts, utilitarian accounts, and social contract accounts--and assesses their applicability to the problem of the morality of strikes. After critiquing these views, it offers a fourth view grounding special moral obligations in voluntary commitments, and explains why this is a preferable basis for understanding physicians' moral obligations in general and especially as pertaining to strikes.

  4. 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…

  5. Farmers' pensions and the Polish economic crisis.

    Science.gov (United States)

    Simanis, J G

    1983-04-01

    The Polish Government, in 1977, inaugurated a new pension program that made old-age and invalidity benefits available for the first time to most farmers in that country. The evolution and eventual failure of that program were closely intertwined with a growing national economic crisis, manifested in widespread popular unrest and culminating in emergence of the Solidarity movement. The farmers' pension program was originally presented as both a social security measure and a vehicle for improving agricultural efficiency. The economic situation was expected to benefit as farms of older owners were passed to younger, presumably more efficient, successors, with the state sometimes acting as intermediary. A further step to bind the social security concept to agricultural efficiency came through relating the pension amount to the quantity of produce the individual farmer sold to the state over a number of years. The failure of these provisions and other unpopular features of the new program was aggravated by inflation and continuing deterioration of the Polish economy.

  6. Ethical and legal consideration of prisoner's hunger strike in Serbia.

    Science.gov (United States)

    Alempijevic, Djordje; Pavlekic, Snezana; Jecmenica, Dragan; Nedeljkov, Aleksandra; Jankovic, Milos

    2011-03-01

    Hunger strike of prisoners and detainees remains a major human rights and ethical issue for medical professionals. We are reporting on a case of a 48-year-old male sentenced prisoner, intravenous heroin user, who went on a hunger strike and died 15 days later. Throughout the fasting period, the prisoner, who was capable of decision making, refused any medical examination. Autopsy findings were not supporting prolonged starvation, while toxicology revealed benzodiazepines and opiates in blood and urine. Cause of death was given as "heroin intoxication" in keeping with detection of 6-MAM. Legal and ethical issues pertinent to medical examination and treatment of prisoners on hunger strike are explored in accordance with legislation and professional ethical standards in Serbia. A recommendation for the best autopsy practice in deaths following hunger strike has been made. © 2011 American Academy of Forensic Sciences.

  7. Continental United States Hurricane Strikes 1950-2012

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Continental U.S. Hurricane Strikes Poster is our most popular poster which is updated annually. The poster includes all hurricanes that affected the U.S. since...

  8. BIRD/WILDLIFE STRIKE CONTROL FOR SAFER AIR ...

    African Journals Online (AJOL)

    Osondu

    2012-06-05

    Jun 5, 2012 ... Several factors including lack of adequate data, shortage of funds, inadequate training of staff and lack of ... Keywords: bird/wildlife, strike, aviation, hazard, control. Introduction ..... implications of some human activities within.

  9. 2005 Significant U.S. Hurricane Strikes Poster

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The 2005 Significant U.S. Hurricane Strikes poster is one of two special edition posters for the Atlantic Hurricanes. This beautiful poster contains two sets of...

  10. Comparison of force, power, and striking efficiency for a Kung Fu strike performed by novice and experienced practitioners: preliminary analysis.

    Science.gov (United States)

    Neto, Osmar Pinto; Magini, Marcio; Saba, Marcelo M F; Pacheco, Marcos Tadeu Tavares

    2008-02-01

    This paper presents a comparison of force, power, and efficiency values calculated from Kung Fu Yau-Man palm strikes, when performed by 7 experienced and 6 novice men. They performed 5 palm strikes to a freestanding basketball, recorded by high-speed camera at 1000 Hz. Nonparametric comparisons and correlations showed experienced practitioners presented larger values of mean muscle force, mean impact force, mean muscle power, mean impact power, and mean striking efficiency, as is noted in evidence obtained for other martial arts. Also, an interesting result was that for experienced Kung Fu practitioners, muscle power was linearly correlated with impact power (p = .98) but not for the novice practitioners (p = .46).

  11. Effects of footwear and strike type on running economy.

    Science.gov (United States)

    Perl, Daniel P; Daoud, Adam I; Lieberman, Daniel E

    2012-07-01

    This study tests if running economy differs in minimal shoes versus standard running shoes with cushioned elevated heels and arch supports and in forefoot versus rearfoot strike gaits. We measured the cost of transport (mL O(2)·kg(-1)·m(-1)) in subjects who habitually run in minimal shoes or barefoot while they were running at 3.0 m·s(-1) on a treadmill during forefoot and rearfoot striking while wearing minimal and standard shoes, controlling for shoe mass and stride frequency. Force and kinematic data were collected when subjects were shod and barefoot to quantify differences in knee flexion, arch strain, plantar flexor force production, and Achilles tendon-triceps surae strain. After controlling for stride frequency and shoe mass, runners were 2.41% more economical in the minimal-shoe condition when forefoot striking and 3.32% more economical in the minimal-shoe condition when rearfoot striking (P forefoot and rearfoot striking did not differ significantly in cost for either minimal- or standard-shoe running. Arch strain was not measured in the shod condition but was significantly greater during forefoot than rearfoot striking when barefoot. Plantar flexor force output was significantly higher in forefoot than in rearfoot striking and in barefoot than in shod running. Achilles tendon-triceps surae strain and knee flexion were also lower in barefoot than in standard-shoe running. Minimally shod runners are modestly but significantly more economical than traditionally shod runners regardless of strike type, after controlling for shoe mass and stride frequency. The likely cause of this difference is more elastic energy storage and release in the lower extremity during minimal-shoe running.

  12. The Czechoslovak-Polish Club in Brno (1925–1939)

    Czech Academy of Sciences Publication Activity Database

    Baron, Roman

    2011-01-01

    Roč. 3, č. 1 (2011), s. 43-64 ISSN 1803-6546 Institutional research plan: CEZ:AV0Z80150510 Keywords : Czechoslovak-Polish solidarity * Czechoslovak-Polish relations * Brno * associations * Interwar Period Subject RIV: AB - History

  13. Phonematic translation of Polish texts by the neural network

    International Nuclear Information System (INIS)

    Bielecki, A.; Podolak, I.T.; Wosiek, J.; Majkut, E.

    1996-01-01

    Using the back propagation algorithm, we have trained the feed forward neural network to pronounce Polish language, more precisely to translate Polish text into its phonematic counterpart. Depending on the input coding and network architecture, 88%-95% translation efficiency was achieved. (author)

  14. Etymology in the Polish Academy of Sciences Great Dictionary of ...

    African Journals Online (AJOL)

    The article offers an insight into etymological information provided in the Polish Academy of Sciences Great Dictionary of Polish (Pol. Wielki słownik języka polskiego PAN, WSJP PAN). The dictionary and the rules of producing the entries are briefly presented. These rules influence the way of working on etymology within ...

  15. Polish Qualitative Sociology. Insight into the future of postdisciplinary research

    OpenAIRE

    Konecki, Krzysztof

    2014-01-01

    The paper desctibes the definitions of following concepts: multidisiplinarity, interdisciplinarity, transdysciplinarity, postdisciplinarity. MOreover it discuss the meanings of a concept of discipline. It describes the place of the Polish qualitative sociology in the context of postdisciplinary research. The main question of paper is: Does the POlish Qualitative Sociology has entered the postdisciplinary phase of research? DGS, UL Krzysztof Konecki

  16. WAVELET TRANSFORM ANALYSIS OF ELECTROMYOGRAPHY KUNG FU STRIKES DATA

    Directory of Open Access Journals (Sweden)

    Ana Carolina de Miranda Marzullo

    2009-11-01

    Full Text Available In martial arts and contact sports strikes are performed at near maximum speeds. For that reason, electromyography (EMG analysis of such movements is non-trivial. This paper has three main goals: firstly, to investigate the differences in the EMG activity of muscles during strikes performed with and without impacts; secondly, to assess the advantages of using Sum of Significant Power (SSP values instead of root mean square (rms values when analyzing EMG data; and lastly to introduce a new method of calculating median frequency values using wavelet transforms (WMDF. EMG data of the deltoid anterior (DA, triceps brachii (TB and brachioradialis (BR muscles were collected from eight Kung Fu practitioners during strikes performed with and without impacts. SSP results indicated significant higher muscle activity (p = 0.023 for the strikes with impact. WMDF results, on the other hand, indicated significant lower values (p = 0. 007 for the strikes with impact. SSP results presented higher sensitivity than rms to quantify important signal differences and, at the same time, presented lower inter-subject coefficient of variations. The result of increase in SSP values and decrease in WMDF may suggest better synchronization of motor units for the strikes with impact performed by the experienced Kung Fu practitioners

  17. VARIATION OF STRIKE INCENTIVES IN DEEP REDUCTIONS; FINAL

    International Nuclear Information System (INIS)

    G.H. CANAVAN

    2001-01-01

    This note studies the sensitivity of strike incentives to deep offensive force reductions using exchange, cost, and game theoretic decision models derived and discussed in companion reports. As forces fall, weapon allocations shift from military to high value targets, with the shift being half complete at about 1,000 weapons. By 500 weapons, the first and second strikes are almost totally on high value. The dominant cost for striking first is that of damage to one's high value, which is near total absent other constraints, and hence proportional to preferences for survival of high value. Changes in military costs are largely offsetting, so total first strike costs change little. The resulting costs at decision nodes are well above the costs of inaction, so the preferred course is inaction for all offensive reductions studied. As the dominant cost for striking first is proportional to the preference for survival of high value. There is a wide gap between the first strike cost and that of inaction for the parameters studied here. These conclusions should be insensitive to significant reductions in the preference for survival of high value, which is the most sensitive parameter

  18. Note on the polishing of small spheres of ferrimagnetic materials

    Energy Technology Data Exchange (ETDEWEB)

    Grunberg, J. G.; Antier, G. [Centre d' etudes nucleaires de Grenoble - C.E.N.G. (France); Seiden, P. E. [Institut Fourier, Universite de Grenoble (France)

    1961-07-01

    This note describes a simple and rapid method that we have used for obtaining a high degree of polish on spheres of ferrimagnetic materials. A high surface polish is of particular importance if one desires to perform ferrimagnetic resonance experiments on very narrow linewidth materials such as Yttrium Iron Garnet. It is not possible to obtain the very narrow linewidths without polishing the sample with a very fine abrasive such as 'Linde A'. Although the methods presently used for the fine polishing of ferrite spheres give satisfactory results, the method described here is of particular interest because of its simplicity and speed. For example with the air-jet tumbling technique it can take as long as three days of polishing to obtain an acceptable surface while our method will give the same results in one to two hours. (author)

  19. Chemical polishing of partially oxidized T-111 alloy

    International Nuclear Information System (INIS)

    Teaney, P.E.

    1974-01-01

    The specimens were pressure-mounted in Bakelite and ground through 600 grit on silicon carbide papers. The specimens were rough-polished on a vibratory polisher for 4 to 6 h, using a water slurry of one micron alumina on Texmet, followed by 0.3-μ alumina on Texmet overnight. Final polishing was accomplished by continuous swabbing with a chemical polish. A chemical polish consisting of ten parts lactic acid, four parts nitric acid, and four parts hydrofluoric acid worked well for the T-111 parent material specimens; however, in the partially oxidized specimens, considerable pitting and staining occurred in the oxygen-affected zone and in the transition zone between the oxygen-affected zone and the parent material. A chemical polish was developed for the partially oxidized specimens by adjusting the ratio of the acids to ten parts lactic acid, two parts nitric acid, and two parts hydrofluoric acid. This slowed the chemical attack on the oxygen-affected zone considerably and, with continuous swabbing, the pitting and stain could be avoided. The specimens were rinsed and checked occasionally on the metallograph to determine when the proper polish had been obtained. Some specimens required intermittent polishing times up to 1 / 2 hour. No relationship could be established between the oxygen content of the specimen and the time required for chemical polishing in the partially oxidized specimens. However, the microstructure of the transition zone was the most difficult to obtain, and specimens with uniform reaction zones across the width of the specimen polished quicker than those with the transition zone

  20. Antigenic typing Polish isolates of canine parvovirus

    Energy Technology Data Exchange (ETDEWEB)

    Mizak, B. [National Veterinary Research Institute, Pulawy (Poland); Plucienniczak, A. [Polish Academy ofd Sciences. Microbiology and Virology Center, Lodz (Poland)

    1995-12-31

    Polish strains of canine parvovirus isolated between 1982 and 1993 were examined to determine the extent to which the virus has evolved antigenically and genetically over eleven years. Two CPV isolates obtained in Warsaw in 1982 and Pulawy in 1993, were examined using monoclonal antibody typing, restriction analysis and sequencing VP-2 protein gene. Five other isolates from Warsaw and Pulawy were tested with the panel of monoclonal antibodies specific to CPV-2, CPV-2a and common for canine parvovirus, feline panleukopenia virus and milk enteritis virus. Results of the studies demonstrated that all isolates tested represented CPV-2a antigenic type. Rapid antigenic strain replacement recorded by Parrish and Senda in the U.S.A and Japan was not confirmed in Poland. (author). 30 refs, 2 tabs.

  1. Food patterns of Polish older people

    DEFF Research Database (Denmark)

    Wadolowska, L.; Danowska-Oziewicz, M.; Niedzwiedzka, E.

    2006-01-01

    Food patterns of Polish older people were separated and described. The research included 422 people aged 65+ years, living in 5 geographical locations. Participants of the study were selected in quota sampling. Criteria for recruitment included sex, age (65-^74 or 75+ years) and family status...... (living alone or living with other people). Respondents were asked questions about consumption of 55 food products. The factor analysis allowed for separating 21 food patterns. They included from 1 to 3 groups of products, intake of which was mutually dependant. Big number of separated food patterns...... and small number of products fonning joint food patterns speak in advocacy of relatively small reciprocal relationship between different food items consumed by the seniors in Poland....

  2. Attitudes of Polish Consumers Toward Experiential Marketing

    Directory of Open Access Journals (Sweden)

    Monika Skorek

    2017-01-01

    Full Text Available Purpose: The experience economy is a concept that can be defned as a new way of perceiving the market offer of an enterprise, focusing on the customer experience. Enterprises, both in the production and service industries, are becoming similar to one another on a massive scale, which makes it increasingly diffcult to stand out. The response to this can be to offer the consumer an unforgettable experience related to a product or service provided by a company. Methodology: This study analysed the results of qualitative research on the attitudes and opinions of Polish consumers on experience marketing. Results/fndings: The results showed that participants of the study were prepared to transition from the economy based on products or services to an economy based on experiences at a moderate level. They declared a willingness to participate in experiences offered by companies but at the same time focus on the cost and utility of them

  3. Antigenic typing Polish isolates of canine parvovirus

    International Nuclear Information System (INIS)

    Mizak, B.; Plucienniczak, A.

    1995-01-01

    Polish strains of canine parvovirus isolated between 1982 and 1993 were examined to determine the extent to which the virus has evolved antigenically and genetically over eleven years. Two CPV isolates obtained in Warsaw in 1982 and Pulawy in 1993, were examined using monoclonal antibody typing, restriction analysis and sequencing VP-2 protein gene. Five other isolates from Warsaw and Pulawy were tested with the panel of monoclonal antibodies specific to CPV-2, CPV-2a and common for canine parvovirus, feline panleukopenia virus and milk enteritis virus. Results of the studies demonstrated that all isolates tested represented CPV-2a antigenic type. Rapid antigenic strain replacement recorded by Parrish and Senda in the U.S.A and Japan was not confirmed in Poland. (author). 30 refs, 2 tabs

  4. Popularity of marijuana among Polish students

    Directory of Open Access Journals (Sweden)

    Michał Pająk

    2017-09-01

    Full Text Available Introduction and the aim: Marijuana is the most commonly used drug in the world (excluding alcohol and tobacco. According to the literature about 16% of Poles at the age of 16 to 64 years old, at least once have used cannabis. The aim of study was to estimate the popularity of marijuana among students of Polish universities. We also asked questions about respondents’ attitude towards marijuana and opinions about its validation. Material and methods: The study was conducted in 2017 on 132 individuals – 60 men and 72 women. The results were analyzed in STATISTICA 10 at p<0.05. Results:Out of interviewees, 63.6% of them, at least once in their lives, have used marijuana. This is a percentage of up to four times greater than that one given in the literature for the general population. Even 80% of men and 50% of women have tried marijuana at least once in their lives. Students of Catholic University of Lublin reach for marijuana significantly more often than students of Medical University of Lublin. The majority of respondents (53% treats marijuana as a "soft" drug, though up 67.4% believe that it has the addictive potential. More than a half of respondents (56.8% stands for liberalization of rules relevant to marijuana in Poland. Vast majority (70% of respondents believes that marijuana is easily available in Poland. Conclusions: Marijuana is a drug popular among students. The criminalization of drug use in Poland is not effective for the prevention of its use, the majority of respondents believes that marijuana is easily available in Poland. Considering the negative health and social consequences of the current state, it is worth wondering about making changes in the education system and Polish drug law.

  5. Droughts in historical times in Polish territory

    Science.gov (United States)

    Limanowka, Danuta; Cebulak, Elzbieta; Pyrc, Robert; Doktor, Radoslaw

    2015-04-01

    Climate change is one of the key environmental, social and economical issues, and it is also followed by political consequences. Impact of climate conditions on countries' economy is increasingly recognized, and a lot of attention is given, both in the global scale and by the individual national governments. In years 2008-2010, at the Poland -Institute of Meteorology and Water Management-National Research Institute was realized the KLIMAT Project on Impact of climate change on environment, economy and society (changes, effects and methods of reducing them, conclusions for science, engineering practice and economic planning) No. POIG01-03-01-14-011/08. The project was financed by the European Union and Polish state budget in frame of Innovative Economy Operational Programme. A very wide range of research was carried out in the different thematic areas. One of them was "Natural disasters and internal safety of the country (civil and economical)." The problem of drought in Poland was developed in terms of meteorology and hydrology. "Proxy" Data Descriptions very often inform about dry years and seasons, hot periods without precipitation. Analysis of historical material allowed to extract the years that have experienced prolonged periods of high temperatures and rainfall shortages. Weather phenomenon defined as drought belongs to extreme events. This information was very helpful in the process of indexing and thus to restore the course and intensity of climatic elements in the past. The analysis covered the period from year 1000 to modern times. Due to the limited information from the period of 1000-1500 the authors focused primarily on the period from 1500 to 2010. Analysis of the collected material has allowed the development of a highly precise temporal structure of the possible occurrence of dry periods to Polish territory.

  6. New perspectives in hydrodynamic radial polishing techniques for optical surfaces

    Science.gov (United States)

    Ruiz, Elfego; Sohn, Erika; Luna, Esteban; Salas, Luis; Cordero, Alberto; González, Jorge; Núñez, Manuel; Salinas, Javier; Cruz-González, Irene; Valdés, Jorge; Cabrera, Victor; Martínez, Benjamín

    2004-09-01

    In order to overcome classic polishing techniques, a novel hydrodynamic radial polishing tool (HyDRa) is presented; it is useful for the corrective lapping and fine polishing of diverse materials by means of a low-cost abrasive flux and a hydrostatic suspension system that avoids contact of the tool with the working surface. This tool enables the work on flat or curved surfaces of currently up to two and a half meters in diameter. It has the advantage of avoiding fallen edges during the polishing process as well as reducing tool wear out and deformation. The functioning principle is based on the generation of a high-velocity, high-pressure, abrasive emulsion flux with radial geometry. The polishing process is repeatable by means of the control of the tool operational parameters, achieving high degrees of precision and accuracy on optical and semiconductor surfaces, with removal rates of up to 9 mm3/hour and promising excellent surface polishing qualities. An additional advantage of this new tool is the possibility to perform interferometric measurements during the polishing process without the need of dismounting the working surface. A series of advantages of this method, numerical simulations and experimental results are described.

  7. Predicting timing of foot strike during running, independent of striking technique, using principal component analysis of joint angles.

    Science.gov (United States)

    Osis, Sean T; Hettinga, Blayne A; Leitch, Jessica; Ferber, Reed

    2014-08-22

    As 3-dimensional (3D) motion-capture for clinical gait analysis continues to evolve, new methods must be developed to improve the detection of gait cycle events based on kinematic data. Recently, the application of principal component analysis (PCA) to gait data has shown promise in detecting important biomechanical features. Therefore, the purpose of this study was to define a new foot strike detection method for a continuum of striking techniques, by applying PCA to joint angle waveforms. In accordance with Newtonian mechanics, it was hypothesized that transient features in the sagittal-plane accelerations of the lower extremity would be linked with the impulsive application of force to the foot at foot strike. Kinematic and kinetic data from treadmill running were selected for 154 subjects, from a database of gait biomechanics. Ankle, knee and hip sagittal plane angular acceleration kinematic curves were chained together to form a row input to a PCA matrix. A linear polynomial was calculated based on PCA scores, and a 10-fold cross-validation was performed to evaluate prediction accuracy against gold-standard foot strike as determined by a 10 N rise in the vertical ground reaction force. Results show 89-94% of all predicted foot strikes were within 4 frames (20 ms) of the gold standard with the largest error being 28 ms. It is concluded that this new foot strike detection is an improvement on existing methods and can be applied regardless of whether the runner exhibits a rearfoot, midfoot, or forefoot strike pattern. Copyright © 2014 Elsevier Ltd. All rights reserved.

  8. Electric converters of electromagnetic strike machine with battery power

    Science.gov (United States)

    Usanov, K. M.; Volgin, A. V.; Kargin, V. A.; Moiseev, A. P.; Chetverikov, E. A.

    2018-03-01

    At present, the application of pulse linear electromagnetic engines to drive strike machines for immersion of rod elements into the soil, strike drilling of shallow wells, dynamic probing of soils is recognized as quite effective. The pulse linear electromagnetic engine performs discrete consumption and conversion of electrical energy into mechanical work. Pulse dosing of a stream transmitted by the battery source to the pulse linear electromagnetic engine of the energy is provided by the electrical converter. The electric converters with the control of an electromagnetic strike machine as functions of time and armature movement, which form the unipolar supply pulses of voltage and current necessary for the normal operation of a pulse linear electromagnetic engine, are proposed. Electric converters are stable in operation, implement the necessary range of output parameters control determined by the technological process conditions, have noise immunity and automatic disconnection of power supply in emergency modes.

  9. VARIATION OF STRIKE INCENTIVES WITH DAMAGE PREFERENCES; FINAL

    International Nuclear Information System (INIS)

    G. CANAVAN

    2001-01-01

    For START III level forces, strike allocations and magnitudes vary little with L, but first strike costs vary directly with L, which means that for K reflecting a preference for the survival of high value targets over their destruction and a preference for high value over military targets, the costs of action are far greater than those of inaction for a wide range of values of damage preference L. Thus, if both sides have much greater preferences for the survival of their high value targets than for military targets or destruction, they do not see a net incentive to strike, and crises are terminated by inaction. Recent decades suggest strong preferences for the survival of high value and that this has contributed to the lack of direct conflict during that period

  10. Reel-to-reel substrate tape polishing system

    Energy Technology Data Exchange (ETDEWEB)

    Selvamanickam, Venkat; Gardner, Michael T.; Judd, Raymond D.; Weloth, Martin; Qiao, Yunfei

    2005-06-21

    Disclosed is a reel-to-reel single-pass mechanical polishing system (100) suitable for polishing long lengths of metal substrate tape (124) used in the manufacture of high-temperature superconductor (HTS) coated tape, including multiple instantiations of a polishing station (114) in combination with a subsequent rinsing station (116) arranged along the axis of the metal substrate tape (124) that is translating between a payout spool (110a) and a take-up spool (110b). The metal substrate tape obtains a surface smoothness that is suitable for the subsequent deposition of a buffer layer.

  11. Polishing Sapphire Substrates by 355 nm Ultraviolet Laser

    Directory of Open Access Journals (Sweden)

    X. Wei

    2012-01-01

    Full Text Available This paper tries to investigate a novel polishing technology with high efficiency and nice surface quality for sapphire crystal that has high hardness, wear resistance, and chemical stability. A Q-switched 355 nm ultraviolet laser with nanosecond pulses was set up and used to polish sapphire substrate in different conditions in this paper. Surface roughness Ra of polished sapphire was measured with surface profiler, and the surface topography was observed with scanning electronic microscope. The effects of processing parameters as laser energy, pulse repetition rate, scanning speed, incident angle, scanning patterns, and initial surface conditions on surface roughness were analyzed.

  12. Microscopic machining mechanism of polishing based on vibrations of liquid

    International Nuclear Information System (INIS)

    Huang, Z G; Guo, Z N; Chen, X; Yu, Z Q; Yu, T M; Lee, W B

    2007-01-01

    A molecular dynamics method has been applied to study the mechanism of polishing based on vibrations of liquid. Movements of polishing particles and formations of impact dents are simulated and discussed. The abrasive effect between particle and machined substrate is evaluated empirically. Polishing qualities, including roughness and fractal character under multiple impacts, are obtained by numerical methods. Results show that the particle will vibrate and roll viscously on the substrate. Press, tear and self-organization effects will be responsible for the formation of impact dents. Simulation results are compared with experimental data to verify the conclusions

  13. Presentation of the verbs in Bulgarian-Polish electronic dictionary

    Directory of Open Access Journals (Sweden)

    Ludmila Dimitrova

    2014-09-01

    Full Text Available Presentation of the verbs in Bulgarian-Polish electronic dictionary This paper briefly discusses the presentation of the verbs in the first electronic Bulgarian-Polish dictionary that is currently being developed under a bilateral collaboration between IMI-BAS and ISS-PAS. Special attention is given to the digital entry classifiers that describe Bulgarian and Polish verbs. Problems related to the correspondence between natural language phenomena and their presentations are discussed. Some examples illustrate the different types of dictionary entries for verbs.

  14. "Agricultural budget" and the competitiveness of the Polish agriculture

    OpenAIRE

    Lenkiewicz, Stanisław; Rokicki, Bartłomiej

    2014-01-01

    The aim of the publication is to assess the impact of public support on the functioning of the Polish agriculture. In order to achieve this aim the publication includes an analysis of the system of direct payments and rural development policy instruments planned to be implemented in Poland within the CAP 2014-2020. The study also presents an analysis of regional diversity of the Polish agriculture and an assessment of the scale of agricultural investment made in recent years in all the Polish...

  15. Joint stiffness and running economy during imposed forefoot strike before and after a long run in rearfoot strike runners.

    Science.gov (United States)

    Melcher, Daniel A; Paquette, Max R; Schilling, Brian K; Bloomer, Richard J

    2017-12-01

    Research has focused on the effects of acute strike pattern modifications on lower extremity joint stiffness and running economy (RE). Strike pattern modifications on running biomechanics have mostly been studied while runners complete short running bouts. This study examined the effects of an imposed forefoot strike (FFS) on RE and ankle and knee joint stiffness before and after a long run in habitual rearfoot strike (RFS) runners. Joint kinetics and RE were collected before and after a long run. Sagittal joint kinetics were computed from kinematic and ground reaction force data that were collected during over-ground running trials in 13 male runners. RE was measured during treadmill running. Knee flexion range of motion, knee extensor moment and ankle joint stiffness were lower while plantarflexor moment and knee joint stiffness were greater during imposed FFS compared with RFS. The long run did not influence the difference in ankle and knee joint stiffness between strike patterns. Runners were more economical during RFS than imposed FFS and RE was not influenced by the long run. These findings suggest that using a FFS pattern towards the end of a long run may not be mechanically or metabolically beneficial for well-trained male RFS runners.

  16. [Force-feeding of hunger-striking prisoners].

    Science.gov (United States)

    Glick, Shimon

    2014-09-01

    In contrast to the position of the World Medical Association and the Ethics Council of the Israel Medical Association, the author argues for forced-feeding of hunger-striking prisoners when their condition reaches a stage of danger of death or permanent injury. This position is based on the priority of human life over autonomy, and of a communitarian ethic. This position is supported by a District Court decision ordering the feeding of a hunger-striking prisoner, by a Supreme Court decision imposing surgery on a non-consenting prisoner, and in line with Israel's Patient's Right Law.

  17. MORE THAN A LABOR DISPUTE: THE PATCO STRIKE OF 1981

    Directory of Open Access Journals (Sweden)

    Paul L. Butterworth

    2005-01-01

    Full Text Available On August 3, 1981, 13,000 air traffic controllers walked off the job. Under US law, the strike was illegal. President Ronald Reagan ordered the strikers as a group to return to work; when they did not, he ordered individual strikers to return, and again they refused. Two days later the president fired the strikers. Reagan's action transformed relations between organized labor and American management, and created the worst turbulence to hit the American airways in recent history. “More Than a Labor Dispute” examines the work stoppage and aftermath through the eyes of two controllers and a pilot, all of whom worked during the strike.

  18. Remarkable rates of lightning strike mortality in Malawi.

    Science.gov (United States)

    Mulder, Monique Borgerhoff; Msalu, Lameck; Caro, Tim; Salerno, Jonathan

    2012-01-01

    Livingstone's second mission site on the shore of Lake Malawi suffers very high rates of consequential lightning strikes. Comprehensive interviewing of victims and their relatives in seven Traditional Authorities in Nkhata Bay District, Malawi revealed that the annual rate of consequential strikes was 419/million, more than six times higher than that in other developing countries; the rate of deaths from lightning was 84/million/year, 5.4 times greater than the highest ever recorded. These remarkable figures reveal that lightning constitutes a significant stochastic source of mortality with potential life history consequences, but it should not deflect attention away from the more prominent causes of mortality in this rural area.

  19. Scaling properties of Polish rain series

    Science.gov (United States)

    Licznar, P.

    2009-04-01

    Scaling properties as well as multifractal nature of precipitation time series have not been studied for local Polish conditions until recently due to lack of long series of high-resolution data. The first Polish study of precipitation time series scaling phenomena was made on the base of pluviograph data from the Wroclaw University of Environmental and Life Sciences meteorological station located at the south-western part of the country. The 38 annual rainfall records from years 1962-2004 were converted into digital format and transformed into a standard format of 5-minute time series. The scaling properties and multifractal character of this material were studied by means of several different techniques: power spectral density analysis, functional box-counting, probability distribution/multiple scaling and trace moment methods. The result proved the general scaling character of time series at the range of time scales ranging form 5 minutes up to at least 24 hours. At the same time some characteristic breaks at scaling behavior were recognized. It is believed that the breaks were artificial and arising from the pluviograph rain gauge measuring precision limitations. Especially strong limitations at the precision of low-intensity precipitations recording by pluviograph rain gauge were found to be the main reason for artificial break at energy spectra, as was reported by other authors before. The analysis of co-dimension and moments scaling functions showed the signs of the first-order multifractal phase transition. Such behavior is typical for dressed multifractal processes that are observed by spatial or temporal averaging on scales larger than the inner-scale of those processes. The fractal dimension of rainfall process support derived from codimension and moments scaling functions geometry analysis was found to be 0.45. The same fractal dimension estimated by means of the functional box-counting method was equal to 0.58. At the final part of the study

  20. Polish electoral geography and its methods

    Directory of Open Access Journals (Sweden)

    Zbigniew Rykiel

    2011-01-01

    Full Text Available Differences in the understanding of electoral geography between social sciences are discussed in the article. Main fields and spatial scales of Polish electoral geography are identified. Main methods of multidimensional statistics are discussed. A necessity of a proper choice, based on theories of voting behaviour, of explaning variables to statistical models are emphasised. Regression analysis indicates only a formal usefulness in electoral geography, for quantitative relationships between variables in the model can be evidenced, which may be meaningless not only essentially, but even statistically. The application of canonical analysis in electoral geography brought a methodological turning-point to the statistical approach. This method allowed to combine: (1 the foundation of the selection of input variables on theories of voting behaviour; (2 the analysis of dependence of the electoral results on socio-economic characteristics of areas; (3 an identification of electoral options; (4 a quantification of the role of the historical heritage in the contemporary voting behaviour; and (5 the analysis of the stability of the electoral space. A well grounded opinion was weakened about the general competitiveness of right- and left-wing parties in Poland’s political space. Parties with similar rather than different programmes compete in given areas. It was indicated that elections have only formal influence on the structure of Parliament while the electoral system is decisive. Electoral, including territorial, manipulations also play their part. The empirical analysis indicated that Poland’s political space is polarised between the right-wing-oriented areas of the south-eastern half of the country and the left-wing-oriented areas of the north-western half. The political competition between the left and the right operates merely on the national scale, while it is not reflected territorially.The quantification of the influence of the nineteenth

  1. 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.

  2. How can we cooperate better? The determinants of conflict solving competence in Polish pediatric nurses’ relations with parents of hospitalized children

    Directory of Open Access Journals (Sweden)

    Magdalena Chrzan-Dętkoś

    2015-07-01

    Full Text Available Background Our pilot study carried out at two Polish pediatric hospital departments revealed that conflicts with parents of hospitalized children represent the main concern of pediatric nurses. The aim of this study was to examine factors determining the conflict solving competence in pediatric nurses in order to develop effective communication training programs for pediatric ward staff. Participants and procedure A total of 78 pediatric nurses completed measures of occupational and perceived stress, conflict modes and competence in solving conflicts with parents of hospitalized children. Results The key factor influencing conflict solving competence was the level of perceived stress and supervisor support. Conclusions Systemic supervised activities aimed at reducing the level of stress, e.g. Balint groups or reflective supervision, could be helpful in mastering the conflict solving competences. Also a paradigm shift from the individual patient to his/her family considered as a patient could potentially improve nurse-parent relations.

  3. DEMONSTRATION BULLETIN: COLLOID POLISHING FILTER METHOD - FILTER FLOW TECHNOLOGY, INC.

    Science.gov (United States)

    The Filter Flow Technology, Inc. (FFT) Colloid Polishing Filter Method (CPFM) was tested as a transportable, trailer mounted, system that uses sorption and chemical complexing phenomena to remove heavy metals and nontritium radionuclides from water. Contaminated waters can be pro...

  4. The resettlement of Polish refugees after the second world war

    Directory of Open Access Journals (Sweden)

    Agata Blaszczyk

    2017-02-01

    Full Text Available The passing of the Polish Resettlement Act and the creation of the different agencies related to it undoubtedly represented an unprecedented response to the challenge of mass migration in the UK.

  5. Comparative study of performance of shoe polishes formulated from ...

    African Journals Online (AJOL)

    GARZALI

    1Department of Pure and Industrial Chemistry, Bayero University, Kano. 2College of Science ... carbon black pigment. Polyethylene polish like the one formulated using carbon black pigment was ... into fine black powder. Purification of Wax.

  6. Polish Defense Policy in the Context of National Security Strategy

    National Research Council Canada - National Science Library

    Bieniek, Piotr S

    2006-01-01

    ...) and the North Atlantic Treaty Organization (NATO). Polish security policy and strategy is shaped by its geographical location, which places Poland in NATO's main strategic area opposite the Russian Federation and Belarus...

  7. Employability management practices in the Polish ICT sector

    NARCIS (Netherlands)

    Marzec, I.; van der Heijden, Beatrice; Scholarios, D.; van der Schoot, E.; Jedrzejowicz, P.; Bozionelos, N.; Epitropaki, O.; Knauth, P.; Mikkelsen, A.; van der Heijde, C.M.

    2009-01-01

    This article examines current career thinking and employability management practices within the Polish Information and Communication Technology (ICT) sector. The aim of this contribution is to identify career management problems and to determine obstacles for implementing employability management

  8. Super Polishing of Aluminum 6061-T6 Mirrors, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — An innovative 2D super-polishing process for Aluminum 6061-T6 planar mirrors which removes diamond point turning (DPT) grooves and attains rms surface finishes below...

  9. Production of rare earth polishing powders in Russia

    International Nuclear Information System (INIS)

    Kosynkin, V.D.; Ivanov, E.N.; Kotrekhov, V.A.; Shtutza, M.G.; Grabko, A.I.

    1998-01-01

    Full text: Russia is a potent producer of polishing powders made of rare earth material presented as an extensive and well developed base. Considering the reserves, the facilities predisposition and the polishing agent (cerium dioxide) content the chief mineral source is loparite, apatite and monazite. The production of rare earth polishing powders is based on specially developed continuous technological processes, corrosion-proof equipment, ensuring a high and stable production quality. A special attention is paid to the radiation safety of the powders. The initial material for the rare earth polishing powders based on loparite is the fusion cake of rare earth chlorides obtained at that mineral chlorination. The technology of the polishing powder production from the REE fusion cake includes the following stages: dissolution of the REE fusion cake chlorides; - thorough cleaning of the REE fusion cake chlorides from radioactive and non-rare-earth impurities; chemical precipitation of REE carbonates, obtaining middlings with proper material and granulometric composition, thermal treatment of precipitated carbonates followed with the operations of drying and roasting; classification of roasted oxides, obtaining end products - polishing powders. The production of fluorine-containing powders includes the stage of their fluorination after the stage of carbonate precipitation. The stabilizing doping can be introduced both into the middlings during one of the technological process of powders manufacturing and into the end product. Rare earth polishing powders are manufactured in Russia by the Share Holding Company 'Chepetz Mechanical Plant' (ChMP Co.), the city of Glasov. The plant produces a number of polishing materials, such as; polishing powder Optinol, containing at least 50% by mass of cerium dioxide, used in the mass production of optical and other articles; polishing powder Optinol-10 with doping to improve the sedimentary and aggregate stability of the solid phase

  10. Research on high-efficiency polishing technology of photomask substrate

    Science.gov (United States)

    Zhao, Shijie; Xie, Ruiqing; Zhou, Lian; Liao, Defeng; Chen, Xianhua; Wang, Jian

    2018-03-01

    A method of photomask substrate fabrication is demonstrated ,that the surface figure and roughness of fused silica will converge to target precision rapidly with the full aperture polishing. Surface figure of optical flats in full aperture polishing processes is primarily dependent on the surface profile of polishing pad, therefor, a improved function of polishing mechanism was put forward based on two axis lapping machine and technology experience, and the pad testing based on displacement sensor and the active conditioning method of the pad is applied in this research. Moreover , the clamping deformation of the thin glass is solved by the new pitch dispensing method. The experimental results show that the surface figure of the 152mm×152mm×6.35mm optical glass is 0.25λ(λ=633nm) and the roughness is 0.32nm ,which has meet the requirements of mask substrate for 90 45nm nodes.

  11. Laser polishing of 3D printed mesoscale components

    International Nuclear Information System (INIS)

    Bhaduri, Debajyoti; Penchev, Pavel; Batal, Afif; Dimov, Stefan; Soo, Sein Leung; Sten, Stella; Harrysson, Urban; Zhang, Zhenxue; Dong, Hanshan

    2017-01-01

    Highlights: • Process optimisation for laser polishing novel 3D printed SS316L parts. • Evaluating the effects of key polishing parameters on SS316L surface roughness. • Detailed spectroscopic analysis of oxide layer formation due to laser polishing. • Comparative surface integrity analysis of SS parts polished in air and argon. • A maximum reduction in roughness of over 94% achieved at optimised polishing settings. - Abstract: Laser polishing of various engineered materials such as glass, silica, steel, nickel and titanium alloys, has attracted considerable interest in the last 20 years due to its superior flexibility, operating speed and capability for localised surface treatment compared to conventional mechanical based methods. The paper initially reports results from process optimisation experiments aimed at investigating the influence of laser fluence and pulse overlap parameters on resulting workpiece surface roughness following laser polishing of planar 3D printed stainless steel (SS316L) specimens. A maximum reduction in roughness of over 94% (from ∼3.8 to ∼0.2 μm S_a) was achieved at the optimised settings (fluence of 9 J/cm"2 and overlap factors of 95% and 88–91% along beam scanning and step-over directions respectively). Subsequent analysis using both X-ray photoelectron spectroscopy (XPS) and glow discharge optical emission spectroscopy (GDOES) confirmed the presence of surface oxide layers (predominantly consisting of Fe and Cr phases) up to a depth of ∼0.5 μm when laser polishing was performed under normal atmospheric conditions. Conversely, formation of oxide layers was negligible when operating in an inert argon gas environment. The microhardness of the polished specimens was primarily influenced by the input thermal energy, with greater sub-surface hardness (up to ∼60%) recorded in the samples processed with higher energy density. Additionally, all of the polished surfaces were free of the scratch marks, pits, holes, lumps

  12. Laser polishing of 3D printed mesoscale components

    Energy Technology Data Exchange (ETDEWEB)

    Bhaduri, Debajyoti, E-mail: debajyoti.bhaduri@gmail.com [Department of Mechanical Engineering, School of Engineering, University of Birmingham, Edgbaston, Birmingham, B15 2TT (United Kingdom); Penchev, Pavel; Batal, Afif; Dimov, Stefan; Soo, Sein Leung [Department of Mechanical Engineering, School of Engineering, University of Birmingham, Edgbaston, Birmingham, B15 2TT (United Kingdom); Sten, Stella; Harrysson, Urban [Digital Metal, Höganäs AB, 263 83 Höganäs (Sweden); Zhang, Zhenxue; Dong, Hanshan [School of Metallurgy and Materials, University of Birmingham, Edgbaston, Birmingham, B15 2TT (United Kingdom)

    2017-05-31

    Highlights: • Process optimisation for laser polishing novel 3D printed SS316L parts. • Evaluating the effects of key polishing parameters on SS316L surface roughness. • Detailed spectroscopic analysis of oxide layer formation due to laser polishing. • Comparative surface integrity analysis of SS parts polished in air and argon. • A maximum reduction in roughness of over 94% achieved at optimised polishing settings. - Abstract: Laser polishing of various engineered materials such as glass, silica, steel, nickel and titanium alloys, has attracted considerable interest in the last 20 years due to its superior flexibility, operating speed and capability for localised surface treatment compared to conventional mechanical based methods. The paper initially reports results from process optimisation experiments aimed at investigating the influence of laser fluence and pulse overlap parameters on resulting workpiece surface roughness following laser polishing of planar 3D printed stainless steel (SS316L) specimens. A maximum reduction in roughness of over 94% (from ∼3.8 to ∼0.2 μm S{sub a}) was achieved at the optimised settings (fluence of 9 J/cm{sup 2} and overlap factors of 95% and 88–91% along beam scanning and step-over directions respectively). Subsequent analysis using both X-ray photoelectron spectroscopy (XPS) and glow discharge optical emission spectroscopy (GDOES) confirmed the presence of surface oxide layers (predominantly consisting of Fe and Cr phases) up to a depth of ∼0.5 μm when laser polishing was performed under normal atmospheric conditions. Conversely, formation of oxide layers was negligible when operating in an inert argon gas environment. The microhardness of the polished specimens was primarily influenced by the input thermal energy, with greater sub-surface hardness (up to ∼60%) recorded in the samples processed with higher energy density. Additionally, all of the polished surfaces were free of the scratch marks, pits, holes

  13. Reusing Ceramic Tile Polishing Waste In Paving Block Manufacturing

    OpenAIRE

    Giordano Penteado; Carmenlucia Santos; de Carvalho; Eduardo Viviani; Cecche Lintz; Rosa Cristina

    2016-01-01

    Ceramic companies worldwide produce large amounts of polishing tile waste, which are piled up in the open air or disposed of in landfills. These wastes have such characteristics that make them potential substitutes for cement and sand in the manufacturing of concrete products. This paper investigates the use of ceramic tile polishing waste as a partial substitute for cement and sand in the manufacturer of concrete paving blocks. A concrete mix design was defined and then the sand was replaced...

  14. Borel hierarchies in infinite products of Polish spaces

    Indian Academy of Sciences (India)

    with two product topologies: (i) the product of copies of the Polish topology on X, so that H is again a Polish space and (ii) the product of copies of the discrete topology on X. Define now the Borel hierarchy in the larger topology on H. To do so, we need some notation. An element of H will be denoted by h = (x1,x2,...,xn,.

  15. Polish Standard of the Technical Safety of Transmission Gas Pipelines

    International Nuclear Information System (INIS)

    Tkacz, A.J.

    2006-01-01

    The document is presenting the idea of the CNGI Norm called The Polish Standard of the Technical Safety of Transmission Gas Pipelines and the way of using it by companies associated in the Chamber of the Natural Gas Industry in the business activity. It will be applied to improve the quality and reliability of gas transmission after full opening of Polish natural gas market. (author)

  16. IDENTITY AND NEGOTIATION OF BOUNDARIES AMONG YOUNG POLISH JEWS

    OpenAIRE

    Cukras-Stelągowska, Joanna

    2015-01-01

    In this chapter, I would like to look at the processes of building the cultural identity of the young generation of Polish Jews, primarily including the models of constructing modern identifications with the Polish society, the Jewish people and the State of Israel. I will present the results of my own studies, and of those conducted by a few other young researchers dealing with these issues. My main theoretical sources are within the interpretive paradigm. The research methodology was based ...

  17. Torts Liability for Strike Action and Third Party Rights.

    Science.gov (United States)

    Raday, Frances

    1979-01-01

    Studies the nature of the torts liability incurred in strikes and the extent of existing immunities bestowed on strikers and their organizers, and explores the principles that should govern liability and immunity. Available from Israel Law Review Association, c/o Faculty of Law, Hebrew University of Jerusalem, Mount Scopus, P.O.B. 24100, Jerusalem…

  18. Delayed Post Mortem Predation in Lightning Strike Carcasses ...

    African Journals Online (AJOL)

    Campbell Murn

    An adult giraffe was struck dead by lightning on a game farm outside. Phalaborwa, South Africa in March 2014. Interestingly, delayed post-mortem predation occurred on the carcass, which according to the farm owners was an atypical phenomenon for the region. Delayed post-mortem scavenging on lightning strike ...

  19. EDITORIAL Plagiarism - time to strike at the epidemic

    African Journals Online (AJOL)

    admin

    Plagiarism - time to strike at the epidemic. Lukman Yusuf1, Abraham Aseffa2. We live in a globalized world where information is instantly shared across continents. The number of biomedical journals available for reference is quite enormous and there is a sudden huge surge of free open access journals in the last few years ...

  20. Analysis of the effects of frequent strikes on academic performance ...

    African Journals Online (AJOL)

    The history of Academic Staff Union of Universities (ASUU)'s strike can be traced back to 1978, the period of the beginning of the decline in the oil boom, when the country faced the consequences of the failure by its rulers to use the oil wealth to generate production and a social welfare system. Military dictatorship had ...

  1. When the Corporate Storm Strikes the Academy: Faculty Response Required

    Science.gov (United States)

    DeBoy, James L.

    2015-01-01

    When the corporate storm strikes the academy, faculty must be willing and able to repel administrative assaults upon academic freedom, shared governance, and tenure. This paper will describe the on-going clash between administrators who embrace the corporate mindset and faculty who cherish traditions of shared governance and collegial…

  2. Force, reaction time, and precision of Kung Fu strikes.

    Science.gov (United States)

    Neto, Osmar Pinto; Bolander, Richard; Pacheco, Marcos Tadeu Tavares; Bir, Cynthia

    2009-08-01

    The goal was to compare values of force, precision, and reaction time of several martial arts punches and palm strikes performed by advanced and intermediate Kung Fu practitioners, both men and women. 13 Kung Fu practitioners, 10 men and three women, participated. Only the men, three advanced and seven intermediate, were considered for comparisons between levels. Reaction time values were obtained using two high speed cameras that recorded each strike at 2500 Hz. Force of impact was measured by a load cell. For comparisons of groups, force data were normalized by participant's body mass and height. Precision of the strikes was determined by a high speed pressure sensor. The results show that palm strikes were stronger than punches. Women in the study presented, on average, lower values of reaction time and force but higher values of precision than men. Advanced participants presented higher forces than intermediate participants. Significant negative correlations between the values of force and precision and the values of force and reaction time were also found.

  3. Striking Inside Angola with 32 Battalion | Scheepers | Scientia ...

    African Journals Online (AJOL)

    Scientia Militaria: South African Journal of Military Studies. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 42, No 1 (2014) >. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register. Striking Inside Angola with 32 ...

  4. Assemblage of strike-slip faults and tectonic extension and ...

    Indian Academy of Sciences (India)

    12

    the formation, evolution and distribution of these strike-slip faults have important. 80 ...... function of coal-derived gas study for natural gas industry development in China; .... Bohai-Zhangjiakou seismotectonic zone based on 3D visco-elastic ...

  5. Factors influencing the surface quality of polished tool steels

    International Nuclear Information System (INIS)

    Rebeggiani, S; Rosén, B-G

    2014-01-01

    Today’s demands on surface quality of moulds for injection moulding of plastic components involve no/low defect contents and roughness levels in the nm-range for high gloss applications. Material properties as well as operating conditions influence the mould finish, and thus the final surface of moulded products. This paper focuses on how particle content and different polishing strategies influence final surface qualities of moulds. Visual estimations of polished tool steel samples were combined with non-contact 3D-surface texture analysis in order to correlate traditional assessments to more quantitative methods, and to be able to analyse the surfaces at nanometre-level. It was found that steels with a lower proportion of particles, like carbides and oxides, gave rise to smoother polished surfaces. In a comparative study of polishers from different polishing shops, it was found that while different surface preparation strategies can lead to similar final roughness, similar preparation techniques can produce high-quality surfaces from different steel grades. However, the non-contact 3D-surface texture analysis showed that not all smooth polished surfaces have desirable functional topographies for injection moulding of glossy plastic components. (paper)

  6. Study of Profile Changes during Mechanical Polishing using Relocation Profilometry

    Science.gov (United States)

    Kumaran, S. Chidambara; Shunmugam, M. S.

    2017-10-01

    Mechanical polishing is a finishing process practiced conventionally to enhance quality of surface. Surface finish is improved by mechanical cutting action of abrasive particles on work surface. Polishing is complex in nature and research efforts have been focused on understanding the polishing mechanism. Study of changes in profile is a useful method of understanding behavior of the polishing process. Such a study requires tracing same profile at regular process intervals, which is a tedious job. An innovative relocation technique is followed in the present work to study profile changes during mechanical polishing of austenitic stainless steel specimen. Using special locating fixture, micro-indentation mark and cross-correlation technique, the same profile is traced at certain process intervals. Comparison of different parameters of profiles shows the manner in which metal removal takes place in the polishing process. Mass removal during process estimated by the same relocation technique is checked with that obtained using weight measurement. The proposed approach can be extended to other micro/nano finishing processes and favorable process conditions can be identified.

  7. Polish Adaptation of Wrist Evaluation Questionnaires.

    Science.gov (United States)

    Czarnecki, Piotr; Wawrzyniak-Bielęda, Anna; Romanowski, Leszek

    2015-01-01

    Questionnaires evaluating hand and wrist function are a very useful tool allowing for objective and systematic recording of symptoms reported by the patients. Most questionnaires generally accepted in clinical practice are available in English and need to be appropriately adapted in translation and undergo subsequent validation before they can be used in another culture and language. The process of translation of the questionnaires was based on the generally accepted guidelines of the International Quality of Life Assessment Project (IQOLA). First, the questionnaires were translated from English into Polish by two independent translators. Then, a joint version of the translation was prepared collectively and translated back into English. Each stage was followed by a written report. The translated questionnaires were then evaluated by a group of patients. We selected 31 patients with wrist problems and asked them to complete the PRWE, Mayo, Michigan and DASH questionnaires twice at intervals of 3-10 days. The results were submitted for statistical analysis. We found a statistically significant (pquestionnaires. A comparison of the PRWE and Mayo questionnaires with the DASH questionnaire also showed a statistically significant correlation (pquestionnaires was successful and that the questionnaires may be used in clinical practice.

  8. Automated visual inspection for polished stone manufacture

    Science.gov (United States)

    Smith, Melvyn L.; Smith, Lyndon N.

    2003-05-01

    Increased globalisation of the ornamental stone market has lead to increased competition and more rigorous product quality requirements. As such, there are strong motivators to introduce new, more effective, inspection technologies that will help enable stone processors to reduce costs, improve quality and improve productivity. Natural stone surfaces may contain a mixture of complex two-dimensional (2D) patterns and three-dimensional (3D) features. The challenge in terms of automated inspection is to develop systems able to reliably identify 3D topographic defects, either naturally occurring or resulting from polishing, in the presence of concomitant complex 2D stochastic colour patterns. The resulting real-time analysis of the defects may be used in adaptive process control, in order to avoid the wasteful production of defective product. An innovative approach, using structured light and based upon an adaptation of the photometric stereo method, has been pioneered and developed at UWE to isolate and characterize mixed 2D and 3D surface features. The method is able to undertake tasks considered beyond the capabilities of existing surface inspection techniques. The approach has been successfully applied to real stone samples, and a selection of experimental results is presented.

  9. Personality of Polish gay men and women

    Directory of Open Access Journals (Sweden)

    Marcin Kwiatkowski

    2015-12-01

    Full Text Available Background Sexuality is a part of one’s identity and personality that is shaped under the influence of biological and environmental factors and interactions with society. The results of research conducted so far and concerning the personality traits of gay men and women are not consistent, and only a small number of them concern the Polish population. Hence the objective of the present research was to provide personality profiles of men and women with different sexual orientations. Participants and procedure The participants (N = 346 included 84 gay women, 82 gay men, 95 heterosexual women and 85 heterosexual men. The following measures were used: a survey developed by the author, the Kinsey Scale, the EPQ-R (Eysenck Personality Questionnaire Revised adapted by Brzozowski and Drwal (1995, and the Sixteen-factor Personality Questionnaire of Cattell adapted by Nowakowska (1970. Results The results support the hypothesis that gay women and heterosexual men share similar personality traits, while gay men have more diverse traits, similar to the traits typical for heterosexual women and men. In particular, personalities of gay men are described by such traits as progressive attitude, independence, or willingness to take risks, which means traits linked to factor Q1. The highest values of that factor are observable in the case of gay men, as compared to gay women, and also in comparison with heterosexual men and women. Conclusions Sexual orientation is responsible for differences in personality traits of the studied group to a greater extent than their biological sex.

  10. Thermodynamical motivation of the Polish energy policy

    Directory of Open Access Journals (Sweden)

    Ziębik Andrzej

    2013-02-01

    Full Text Available Basing on the first and second law of thermodynamics the fundamental trends in the Polish energy policy are analysed, including the aspects of environmental protection. The thermodynamical improvement of real processes (reduction of exergy losses is the main way leading to an improvement of the effectivity of energy consumption. If the exergy loss is economically not justified, we have to do with an error from the viewpoint of the second law analysis. The paper contains a thermodynamical analysis of the ratio of final and primary energy, as well as the analysis of the thermo-ecological cost and index of sustainable development concerning primary energy. Analyses of thermo-ecological costs concerning electricity and centralized heat production have been also carried out. The effect of increasing the share of high-efficiency cogeneration has been analyzed, too. Attention has been paid to an improved efficiency of the transmission and distribution of electricity, which is of special importance from the viewpoint of the second law analysis. The improvement of the energy effectivity in industry was analyzed on the example of physical recuperation, being of special importance from the point of view of exergy analysis.

  11. Polish university as an (unattractive potential employer

    Directory of Open Access Journals (Sweden)

    Baruk, Agnieszka Izabela

    2017-12-01

    Full Text Available The article presents issues associated with the reasons for the fact that young potential employees are not interested in starting work at Polish universities. The article is theoretical-empirical in character. The theoretical part highlights the importance of a situation in which an entity is regarded as an attractive employer, which allows attracting the best employees. Particular attention is paid to the fact that a university needs to build its image as an employer, which results from its characteristics. The article strives to achieve three research goals, among others, identifying the reasons why respondents are not interested in starting work at a university and arranging these reasons hierarchically. Two research hypotheses were subject to preliminary verification: H1 – the main reason for the unwillingness to start work at a university are financial aspects; H2 – the main reason for the unwillingness to start work at a university are the aspects of prestige. The data collected in course of primary research were subject to quantitative analysis based on the method of average assessment analysis and the method of factor analysis. Their results show that the respondents were not interested in work at a university mainly because they wanted to test the knowledge and skills acquired during studies in other branches. At the same time, the aspects of finances and prestige didn’t play a major role. Thus, in case of the surveyed sample of respondents both research hypotheses have to be recognized as untrue.

  12. Mercury emissions from polish pulverized coalfired boiler

    Directory of Open Access Journals (Sweden)

    Wichliński Michał

    2017-01-01

    Full Text Available The current paper presents the research results carried out at one of Polish power plants at a pulverized hard coal-fired 225 MW unit. The research was carried out at full load of the boiler (100% MCR and focused on analysis of mercury content in the input fuel and limestone sorbent for wet flue gas desulfurization (FGD system, as well as investigation of mercury content in the combustion products, i.e. fly ash, slag, FGD product (gypsum and FGD effluents (waste. Within the framework of the present study the concentration of mercury vapor in the exhaust gas was also investigated. The analysis was performed using Lumex RA-915+ spectrometer with an attachment (RP-91C. The measurements were carried out at three locations, i.e. before the electrostatic precipitator (ESP, downstream the ESP, and downstream the wet FGD plant. Design of the measurement system allowed to determine both forms of mercury in the flue gas (Hg0 and Hg2+ at all measurement locations.Based on the measurement results the balance of mercury for a pulverized coal (PC boiler was calculated and the amount of mercury was assessed both in the input solids (fuel and sorbent, as well as the gaseous and solids products (flue gas, slag, ash, gypsum and FGD waste.

  13. Marketing Globalisation – Polish Market Experience

    Directory of Open Access Journals (Sweden)

    Robert Nowacki

    2007-09-01

    Full Text Available The beginning of the 21st century has been yielded with an acceleration of transformations occurring in economies of the whole world. These changes relate to all the areas of economic life functioning. The most important manifestation thereof is a reinforcement of competitive phenomena. Among the most important reasons for such a state of affairs, there is mentioned globalisation. The course of its processes forces the organisation operating in the market to undertake adaptive actions. One of them is reorientation of marketing activities. The need to modify the previous marketing concepts results, first of all, from far reaching alterations in the sphere of consumption, just triggered by globalisationís impact. These trends are noticed in all the markets, also in the Polish one. The foreign enterprises operating in it more and more often use the concept of global marketing. This makes us to have reflection on what is the real effectiveness of such actions and what are the possibilities to form oneís competitive position owing to that. The article constitutes an attempt to provide answers to these questions.

  14. Management of patients during hunger strike and refeeding phase.

    Science.gov (United States)

    Eichelberger, M; Joray, M L; Perrig, M; Bodmer, M; Stanga, Z

    2014-01-01

    Hunger strikers resuming nutritional intake may develop a life-threatening refeeding syndrome (RFS). Consequently, hunger strikers represent a core challenge for the medical staff. The objective of the study was to test the effectiveness and safety of evidence-based recommendations for prevention and management of RFS during the refeeding phase. This was a retrospective, observational data analysis of 37 consecutive, unselected cases of prisoners on a hunger strike during a 5-y period. The sample consisted of 37 cases representing 33 individual patients. In seven cases (18.9%), the hunger strike was continued during the hospital stay, in 16 episodes (43.2%) cessation of the hunger strike occurred immediately after admission to the security ward, and in 14 episodes (37.9%) during hospital stay. In the refeed cases (n = 30), nutritional replenishment occurred orally, and in 25 (83.3%) micronutrients substitutions were made based on the recommendations. The gradual refeeding with fluid restriction occurred over 10 d. Uncomplicated dyselectrolytemia was documented in 12 cases (40%) within the refeeding phase. One case (3.3%) presented bilateral ankle edemas as a clinical manifestation of moderate RFS. Intensive medical treatment was not necessary and none of the patients died. Seven episodes of continued hunger strike were observed during the entire hospital stay without medical complications. Our data suggested that seriousness and rate of medical complications during the refeeding phase can be kept at a minimum in a hunger strike population. This study supported use of recommendations to optimize risk management and to improve treatment quality and patient safety in this vulnerable population. Copyright © 2014 Elsevier Inc. All rights reserved.

  15. Study on chemical mechanical polishing of silicon wafer with megasonic vibration assisted.

    Science.gov (United States)

    Zhai, Ke; He, Qing; Li, Liang; Ren, Yi

    2017-09-01

    Chemical mechanical polishing (CMP) is the primary method to realize the global planarization of silicon wafer. In order to improve this process, a novel method which combined megasonic vibration to assist chemical mechanical polishing (MA-CMP) is developed in this paper. A matching layer structure of polishing head was calculated and designed. Silicon wafers are polished by megasonic assisted chemical mechanical polishing and traditional chemical mechanical polishing respectively, both coarse polishing and precision polishing experiments were carried out. With the use of megasonic vibration, the surface roughness values Ra reduced from 22.260nm to 17.835nm in coarse polishing, and the material removal rate increased by approximately 15-25% for megasonic assisted chemical mechanical polishing relative to traditional chemical mechanical polishing. Average Surface roughness values Ra reduced from 0.509nm to 0.387nm in precision polishing. The results show that megasonic assisted chemical mechanical polishing is a feasible method to improve polishing efficiency and surface quality. The material removal and finishing mechanisms of megasonic vibration assisted polishing are investigated too. Copyright © 2017 Elsevier B.V. All rights reserved.

  16. 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) ...

  17. 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)

  18. 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...

  19. Implications of Incessant Strike Actions on the Implementation of Technical Education Programme in Nigeria

    Science.gov (United States)

    Adavbiele, J. A.

    2015-01-01

    This paper was designed to x-ray the implications of incessant strike actions on the implementation of Technical education programme in Nigeria. The paper took an exploratory view on the concept of strike actions in Nigeria with particular references on notable strike actions that have occurred in Nigeria. The types of strike were explained and…

  20. The Polish Mother on the defensive? The transformation of the myth and its impact on the motherhood of Polish women

    Directory of Open Access Journals (Sweden)

    Agnieszka Imbierowicz

    2012-06-01

    Full Text Available The subject of this presentation is the attempt to define and to present the origins, socio-cultural content and the evolution of The Polish Mother myth, present in the polish national consciousness. The author tries to show how this myth was born, what functions it fulfilled and what forms it took in the changing historical and social reality, from the moment of loss of independence, through a period of real socialism, until the present day. The impact of this myth in the lives of real women and their motherhood is taken into consideration. Then, the author comparing the results of the latest polish sociological researches on the family and its transformation, and transformation of value systems together with theories about the specifics of life in the period of postmodernity, wonders whether it’s time to deconstruct the myth of The Polish Mother, because it does not fit the conditions of today’s world, which is characterized, above all, by the apotheosis of individuality, self-realization and freedom, or perhaps in polish society there is still strong traditionalism in thinking about motherhood, and the myth of The Polish Mother is still alive?

  1. 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 ...

  2. Nurses' widespread job dissatisfaction, burnout, and frustration with health benefits signal problems for patient care.

    Science.gov (United States)

    McHugh, Matthew D; Kutney-Lee, Ann; Cimiotti, Jeannie P; Sloane, Douglas M; Aiken, Linda H

    2011-02-01

    Job dissatisfaction among nurses contributes to costly labor disputes, turnover, and risk to patients. Examining survey data from 95,499 nurses, we found much higher job dissatisfaction and burnout among nurses who were directly caring for patients in hospitals and nursing homes than among nurses working in other jobs or settings, such as the pharmaceutical industry. Strikingly, nurses are particularly dissatisfied with their health benefits, which highlights the need for a benefits review to make nurses' benefits more comparable to those of other white-collar employees. Patient satisfaction levels are lower in hospitals with more nurses who are dissatisfied or burned out-a finding that signals problems with quality of care. Improving nurses' working conditions may improve both nurses' and patients' satisfaction as well as the quality of care.

  3. Computer-Controlled Cylindrical Polishing Process for Development of Grazing Incidence Optics for Hard X-Ray Region

    Science.gov (United States)

    Khan, Gufran Sayeed; Gubarev, Mikhail; Speegle, Chet; Ramsey, Brian

    2010-01-01

    The presentation includes grazing incidence X-ray optics, motivation and challenges, mid spatial frequency generation in cylindrical polishing, design considerations for polishing lap, simulation studies and experimental results, future scope, and summary. Topics include current status of replication optics technology, cylindrical polishing process using large size polishing lap, non-conformance of polishin lap to the optics, development of software and polishing machine, deterministic prediction of polishing, polishing experiment under optimum conditions, and polishing experiment based on known error profile. Future plans include determination of non-uniformity in the polishing lap compliance, development of a polishing sequence based on a known error profile of the specimen, software for generating a mandrel polishing sequence, design an development of a flexible polishing lap, and computer controlled localized polishing process.

  4. Germanium content in Polish hard coals

    Directory of Open Access Journals (Sweden)

    Makowska Dorota

    2016-01-01

    Full Text Available Due to the policy of the European Union, it is necessary to search for new sources of scarce raw materials. One of these materials is germanium, listed as a critical element. This semi-metal is widely used in the electronics industry, for example in the production of semiconductors, fibre optics and solar cells. Coal and fly ash from its combustion and gasification for a long time have been considered as a potential source of many critical elements, particularly germanium. The paper presents the results of germanium content determination in the Polish hard coal. 23 coal samples of various coal ranks were analysed. The samples were collected from 15 mines of the Upper Silesian Coal Basin and from one mine of the Lublin Coal Basin. The determination of germanium content was performed with the use of Atomic Absorption Spectrometry with Electrothermal Atomization (GFAAS. The investigation showed that germanium content in the analysed samples was at least twice lower than the average content of this element in the hard coals analysed so far and was in the range of 0.08 ÷ 1.28 mg/kg. Moreover, the content of Ge in the ashes from the studied coals does not exceed 15 mg/kg, which is lower than the average value of Ge content in the coal ashes. The highest content of this element characterizes coals of the Lublin Coal Basin and young coals type 31 from the Vistula region. The results indicate a low utility of the analysed coal ashes as a source of the recovery of germanium. On the basis of the analyses, the lack of the relationship between the content of the element and the ash content in the tested coals was noted. For coals of the Upper Silesian Coal Basin, the relationship between the content of germanium in the ashes and the depth of the seam was observed.

  5. The study of optimization on process parameters of high-accuracy computerized numerical control polishing

    Science.gov (United States)

    Huang, Wei-Ren; Huang, Shih-Pu; Tsai, Tsung-Yueh; Lin, Yi-Jyun; Yu, Zong-Ru; Kuo, Ching-Hsiang; Hsu, Wei-Yao; Young, Hong-Tsu

    2017-09-01

    Spherical lenses lead to forming spherical aberration and reduced optical performance. Consequently, in practice optical system shall apply a combination of spherical lenses for aberration correction. Thus, the volume of the optical system increased. In modern optical systems, aspherical lenses have been widely used because of their high optical performance with less optical components. However, aspherical surfaces cannot be fabricated by traditional full aperture polishing process due to their varying curvature. Sub-aperture computer numerical control (CNC) polishing is adopted for aspherical surface fabrication in recent years. By using CNC polishing process, mid-spatial frequency (MSF) error is normally accompanied during this process. And the MSF surface texture of optics decreases the optical performance for high precision optical system, especially for short-wavelength applications. Based on a bonnet polishing CNC machine, this study focuses on the relationship between MSF surface texture and CNC polishing parameters, which include feed rate, head speed, track spacing and path direction. The power spectral density (PSD) analysis is used to judge the MSF level caused by those polishing parameters. The test results show that controlling the removal depth of single polishing path, through the feed rate, and without same direction polishing path for higher total removal depth can efficiently reduce the MSF error. To verify the optical polishing parameters, we divided a correction polishing process to several polishing runs with different direction polishing paths. Compare to one shot polishing run, multi-direction path polishing plan could produce better surface quality on the optics.

  6. Light-induced bird strikes on vessels in Southwest Greenland

    DEFF Research Database (Denmark)

    Merkel, Flemming Ravn; Johansen, Kasper Lambert

    2011-01-01

    Light-induced bird strikes are known to occur when vessels navigate during darkness in icy waters using powerful searchlight. In Southwest Greenland, which is important internationally for wintering seabirds, we collected reports of incidents of bird strikes over 2–3 winters (2006–2009) from navy...... vessels, cargo vessels and trawlers (total n = 19). Forty-one incidents were reported: mainly close to land (birds were reported killed in a single incident. All occurred between 5 p.m. and 6 a.m. and significantly more birds were involved when...... visibility was poor (snow) rather than moderate or good. Among five seabird species reported, the common eider (Somateria mollissima) accounted for 95% of the bird casualties. Based on spatial analyses of data on vessel traffic intensity and common eider density we are able to predict areas with high risk...

  7. Triggered lightning strikes to aircraft and natural intracloud discharges

    Science.gov (United States)

    Mazur, Vladislav

    1989-01-01

    The physical model of Mazur (1989) for triggering lightning strikes by aircraft was used to interpret the initiation of intracloud flashes observed by the French UHF-VHF interferometric system. It is shown that both the intracloud discharges and airplane-triggered lightning strikes were initiated by simultaneous bidirectional development of the negative stepped leader and the positive leader-continous current process. However, the negative stepped leader phase in triggered flashes is of shorter duration (tens of milliseconds), than that in intracloud flashes (usually hundreds of milliseconds). This is considered to be due to the fact that, on the aircraft there is a single initiation process, versus the numerous initiation processes that occur inside the cloud.

  8. Concept of a Conducting Composite Material for Lightning Strike Protection

    OpenAIRE

    Katunin A.; Krukiewicz K.; Herega A.; Catalanotti G.

    2016-01-01

    The paper focuses on development of a multifunctional material which allows conducting of electrical current and simultaneously holds mechanical properties of a polymeric composite. Such material could be applied for exterior fuselage elements of an aircraft in order to minimize damage occurring during lightning strikes. The concept introduced in this paper is presented from the points of view of various scientific disciplines including materials science, chemistry, structural physics and mec...

  9. 2018 NDIA Precision Strike Annual Review (PSAR-18)

    Science.gov (United States)

    2018-03-20

    Planning Agenda as of 9 MAR 18 Ginny Sniegon: 703-575-6653 PRECISION STRIKE ANNUAL REVIEW (PSAR-18) 20 MARCH 2018...Ginny Sniegon PSA Programs Vice-Chair: Captain David “Jumbo” Baird, USN Annual Review Chair: Kurt Chankaya Congressional & William J. Perry...0745 PSA ANNUAL REVIEW WELCOME: Ken Masson—PSA Chairman 0755 PSAR-18 OPENING REMARKS: Kurt Chankaya—PSAR-18 Event Chair 0800 CONGRESSIONAL

  10. Oscillation thresholds for "striking outwards" reeds coupled to a resonator

    OpenAIRE

    Silva , Fabrice; Kergomard , Jean; Vergez , Christophe

    2007-01-01

    International audience; This paper considers a "striking outwards" reed coupled to a resonator. This expression, due to Helmholtz, is not discussed here : it corresponds to the most common model of a lip-type valve, when the valve is assumed to be a one degree of freedom oscillator. The presented work is an extension of the works done by Wilson and Beavers (1974), Tarnopolsky (2000). The range of the playing frequencies is investigated. The first results are analytical : when no losses are pr...

  11. F-35 Joint Strike Fighter: Preliminary Observations on Program Progress

    Science.gov (United States)

    2016-03-23

    current fighter aircraft. The cost of extending the lives of current fighter aircraft and acquiring other major weapon systems, while continuing to... Norway . Ongoing Manufacturing and Reliability Progress Continue Page 12 GAO-16-489T rework, and repair costs have remained steady over...Program Progress Why GAO Did This Study With estimated acquisition costs of nearly $400 billion, the F-35 Joint Strike Fighter—also known as the

  12. Foot strike pattern in children during shod-unshod running.

    Science.gov (United States)

    Latorre Román, Pedro Ángel; Balboa, Fernando Redondo; Pinillos, Felipe García

    2017-10-01

    The purpose of this study was to determine the foot strike patterns (FSPs) and neutral support (no INV/EVE and no foot rotation) in children, as well as to determine the influence of shod/unshod conditions and sex. A total of 713 children, aged 6 to 16 years, participated in this study (Age=10.28±2.71years, body mass index [BMI]=19.70±3.91kg/m 2 , 302 girls and 411 boys). A sagittal and frontal-plane video (240Hz) was recorded using a high-speed camcorder, to record the following variables: rearfoot strike (RFS), midfoot strike (MFS), forefoot strike (FFS), inversion/eversion (INV/EVE) and foot rotation on initial contact. RFS prevalence was similar between boys and girls in both shod and unshod conditions. In the unshod condition there was a significant reduction (p<0.001) of RFS prevalence both in boys (shod condition=83.95% vs. 62.65% unshod condition) and in girls (shod condition=87.85% vs. 62.70% unshod condition). No significant differences were found in INV/EVE and foot rotation between sex groups. In the unshod condition there was a significant increase (p<0.001) of neutral support (no INV/EVE) both in boys (shod condition=12.55% vs. 22.22% unshod condition) and in girls (shod condition=17.9% vs. 28.15% unshod condition). In addition, in the unshod condition there is a significant reduction (p<0.001) of neutral support (no foot rotation) both in boys (shod condition=21.55% vs. 11.10% unshod condition) and in girls (shod condition=21.05% vs. 11.95% unshod condition). In children, RFS prevalence is lower than adult's population. Additionally, barefoot running reduced the prevalence of RFS and INV/EVE, however increased foot rotation. Copyright © 2017 Elsevier B.V. All rights reserved.

  13. Simulating Bird Strike on Aircraft Composite Wing Leading Edge.

    OpenAIRE

    Ericsson, Max

    2012-01-01

    In this master thesis project the possibility to model the response of a wing when subjected to bird strike using finite elements is analyzed. Since this transient event lasts only a few milliseconds the used solution method is explicit time integration. The wing is manufactured using carbon fiber laminate. Carbon fiber laminates have orthotropic material properties with different stiffness in different directions. Accordingly, there are damage mechanisms not considered when using metal that ...

  14. Active strike-slip faulting in El Salvador, Central America

    Science.gov (United States)

    Corti, Giacomo; Carminati, Eugenio; Mazzarini, Francesco; Oziel Garcia, Marvyn

    2005-12-01

    Several major earthquakes have affected El Salvador, Central America, during the Past 100 yr as a consequence of oblique subduction of the Cocos plate under the Caribbean plate, which is partitioned between trench-orthogonal compression and strike-slip deformation parallel to the volcanic arc. Focal mechanisms and the distribution of the most destructive earthquakes, together with geomorphologic evidence, suggest that this transcurrent component of motion may be accommodated by a major strike-slip fault (El Salvador fault zone). We present field geological, structural, and geomorphological data collected in central El Salvador that allow the constraint of the kinematics and the Quaternary activity of this major seismogenic strike-slip fault system. Data suggest that the El Salvador fault zone consists of at least two main ˜E-W fault segments (San Vicente and Berlin segments), with associated secondary synthetic (WNW-ESE) and antithetic (NNW-SSE) Riedel shears and NW-SE tensional structures. The two main fault segments overlap in a dextral en echelon style with the formation of an intervening pull-apart basin. Our original geological and geomorphologic data suggest a late Pleistocene Holocene slip rate of ˜11 mm/yr along the Berlin segment, in contrast with low historical seismicity. The kinematics and rates of deformation suggested by our new data are consistent with models involving slip partitioning during oblique subduction, and support the notion that a trench-parallel component of motion between the Caribbean and Cocos plates is concentrated along E-W dextral strike-slip faults parallel to the volcanic arc.

  15. Rearfoot striking runners are more economical than midfoot strikers.

    Science.gov (United States)

    Ogueta-Alday, Ana; Rodríguez-Marroyo, José Antonio; García-López, Juan

    2014-03-01

    This study aimed to analyze the influence of foot strike pattern on running economy and biomechanical characteristics in subelite runners with a similar performance level. Twenty subelite long-distance runners participated and were divided into two groups according to their foot strike pattern: rearfoot (RF, n = 10) and midfoot (MF, n = 10) strikers. Anthropometric characteristics were measured (height, body mass, body mass index, skinfolds, circumferences, and lengths); physiological (VO2max, anaerobic threshold, and running economy) and biomechanical characteristics (contact and flight times, step rate, and step length) were registered during both incremental and submaximal tests on a treadmill. There were no significant intergroup differences in anthropometrics, VO2max, or anaerobic threshold measures. RF strikers were 5.4%, 9.3%, and 5.0% more economical than MF at submaximal speeds (11, 13, and 15 km·h respectively, although the difference was not significant at 15 km·h, P = 0.07). Step rate and step length were not different between groups, but RF showed longer contact time (P Foot strike pattern affected both contact and flight times, which may explain the differences in running economy.

  16. Striking dynamics and kinetic properties of boxing and MMA gloves

    Directory of Open Access Journals (Sweden)

    Benjamin Lee

    2014-08-01

    Full Text Available With the growing popularity of Mixed Martial Arts (MMA as a competitive sport, questions regarding the dynamic response and properties of MMA gloves arise. High-energy impacts from punches are very similar to boxing yet MMA competition requires the use of 4 oz fingerless glove, compared to the larger full enclosure boxing glove. This work assessed the kinetic properties and strike dynamics of MMA gloves and compared findings with traditional boxing gloves. Gloves mounted on a molded fist were impacted repetitively on an instrumental anvil designed for impact, over a 5 hour period resulting in 10,000 continuous and consistent strikes. Kinetic data from impacts were sampled at the beginning of the data collection and subsequently every 30 minutes (every 1,000 strikes. MMA gloves produced 4-5 times greater peak force and 5 times faster load rate compared to the boxing glove. However, MMA gloves also showed signs of material fatigue, with peak force increasing by 35% and rate of loading increasing by 60% over the duration of the test. Boxing glove characteristics did deteriorate but to a lesser extent. In summary, the kinetic properties of MMA glove differed substantially from the boxing glove resulting in impacts characterized by higher peak forces and more rapid development of force. Material properties including stiffness and thickness play a role in the kinetic characteristics upon impact, and can be inferred to alter injury mechanisms of blunt force trauma.

  17. Infestation of Polish Agricultural Soils by Plasmodiophora Brassicae Along The Polish-Ukrainian Border

    Directory of Open Access Journals (Sweden)

    Jędryczka Małgorzata

    2014-07-01

    Full Text Available There has been a rapid, worldwide increase in oilseed rape production that has resulted in enormous intensification of oilseed rape cultivation, leading to tight rotations. This in turn, has caused an accumulation of pests as well as foliar and soil-borne diseases. Recently, clubroot has become one of the biggest concerns of oilseed rape growers. Clubroot is caused by the soil-borne protist Plasmodiophora brassicae Woronin. The pathogen may be present in groundwater, lakes, and irrigation water used in sprinkling systems. It can be easily transmitted from one field to another not only by water, but also by soil particles and dust transmitted by wind and on machinery. The aim of our overall study was to check for P. brassicae infestation of Polish agricultural soils. This paper presents the 2012 results of a study performed along the Polish-Ukrainian border in two provinces: Lublin (Lubelskie Voivodeship and the Carpathian Foothills (Podkarpackie Voivodeship, in south-east Poland. Monitoring was done in 11 counties, including nine rural and two municipal ones. In total, 40 samples were collected, out of which 36 were collected from fields located in rural areas and four from municipal areas, with two per municipal region. Each sample was collected at 8-10 sites per field, using a soil auger. The biotest to detect the presence of P. brassicae was done under greenhouse conditions using seedlings of the susceptible Brassicas: B. rapa ssp. pekinensis and the Polish variety of oilseed rape B. napus cv. Monolit. Susceptible plants grown in heavily infested soils produced galls on their roots. A county was regarded as free from the pathogen, if none of the bait plants became infected. The pathogen was found in three out of 40 fields monitored (7.5% in the Carpathian Foothill region. The fields were located in two rural counties. The pathogen was not found in Lublin province, and was also not detected in any of the municipal counties. The detection with

  18. Sensory factors affecting female consumers' acceptability of nail polish.

    Science.gov (United States)

    Sun, C; Koppel, K; Adhikari, K

    2015-12-01

    The objectives of this study were to determine what sensory factors impact consumers' acceptability of nail polishes, to explore how these sensory factors impact consumers' acceptability of nail polishes, to investigate whether there are any consumer segments according to their overall acceptability on different nail polishes and to scrutinize how the consumer segments are related to the sensory factors. Ninety-eight females participated in a nail polish consumer study at Kansas State University. Eight commercial products belonging to four categories - regular (REG), gel (GEL), flake (FLK) and water-based (WAT) - were evaluated. Each nail polish sample was evaluated twice by each participant in two different tasks - a task devoted to applying and evaluating the product and a task devoted to observing the appearance and evaluating the product. Pearson's correlation analysis, analysis of variance (ANOVA), external preference mapping, cluster analysis and internal preference mapping were applied for data analysis. Participants' scores of overall liking of the nail polishes were similar in the application task and in the observation task. In general, participants liked the REG and GEL product samples more than the FLK and WAT samples. Among all the sensory attributes, appearance attributes were the major factors that affected participants' overall liking. Aroma seemed to be a minor factor to participants' overall liking. Some sensory attributes, such as runny, shininess, opacity, spreadability, smoothness, coverage and wet appearance, were found to drive participants' overall acceptability positively, whereas others such as pinhole, fatty-edges, blister, brushlines, pearl-like, flake-protrusion, glittery and initial-drag impacted participants' overall acceptability negatively. Four clusters of participants were identified according to their overall liking scores from both the application task and the observation task. Participants' acceptability, based on different

  19. Experimental Study on Abrasive Waterjet Polishing of Hydraulic Turbine Blades

    International Nuclear Information System (INIS)

    Khakpour, H; Birglenl, L; Tahan, A; Paquet, F

    2014-01-01

    In this paper, an experimental investigation is implemented on the abrasive waterjet polishing technique to evaluate its capability in polishing of surfaces and edges of hydraulic turbine blades. For this, the properties of this method are studied and the main parameters affecting its performance are determined. Then, an experimental test-rig is designed, manufactured and tested to be used in this study. This test-rig can be used to polish linear and planar areas on the surface of the desired workpieces. Considering the number of parameters and their levels, the Taguchi method is used to design the preliminary experiments. All experiments are then implemented according to the Taguchi L 18 orthogonal array. The signal-to-noise ratios obtained from the results of these experiments are used to determine the importance of the controlled polishing parameters on the final quality of the polished surface. The evaluations on these ratios reveal that the nozzle angle and the nozzle diameter have the most important impact on the results. The outcomes of these experiments can be used as a basis to design a more precise set of experiments in which the optimal values of each parameter can be estimated

  20. The social shaping of innovation in polish companies

    DEFF Research Database (Denmark)

    Lorentzen, Anne

    2003-01-01

    The paper deals with strategies of innovation in Polish manufacturing companies. The point of departure is a theoretical framework of enterprise level innovation, and of the factors forming strategies of innovation on enterprise level. The paper analyses evidence from 23 Polish companies and pres......The paper deals with strategies of innovation in Polish manufacturing companies. The point of departure is a theoretical framework of enterprise level innovation, and of the factors forming strategies of innovation on enterprise level. The paper analyses evidence from 23 Polish companies...... and presents two cases more in detail. The analysis shows that the Polish companies have all been quite innovative, mostly in relation to product innovation. They choose innovation strategies, which are incremental more than radical, and they tend to differentiate their product range rather than to specialise....... They consider quality development a must in the fight for market shares and they adapt equipment and organisation to this goal. The factors forming and determining the strategies of the companies count the technological knowledge and expertise of the owner/founder, the structural changes of the market...

  1. [Adhesion of oral microorganisms on dental porcelain polished and glazed].

    Science.gov (United States)

    Wang, Yi-ning; Wen, Guo-jiang; Shi, Bin; Pan, Xin-hua

    2003-09-01

    This study compared the roughness of porcelain polished or glazed surfaces and the adhesion of oral streptococcus mutans to them in vitro. 30 porcelain samples were made. Porcelain samples in group A were polished with diamond paste. Porcelain samples were glazed in group B and were polished with Al2O3 (240#) bur in group C. Their roughness values were measured by profilometer. Standardized cell suspensions were incubated with test samples for one hour at 37 degrees C, then retained cells were counted by image analysis (percentage area of a microscopic field covered by cells). Roughness values of group A, B, C were respectively (0.1987 +/- 0.057) microm, (0.1990 +/- 0.091) microm, (0.4260 +/- 0.174) microm. There was no significantly difference between group A and group B. The roughness samples in group C were significantly rougher than that in the other groups. The amount of retained cells in group A, group B, group C was respectively (15.92 +/- 4.37)%, (16.39 +/- 6.31)% and (41.48 +/- 12.1)%. There was no significant difference between the cell adhesion on porcelain surface glazed and polished, but more bacteria adhered on the porcelain surface in group C. Porcelain surface polished treatment was clinically acceptable compared with its glazed. They all exhibited the least amount of bacteria adhesion. The more porcelain surface was rough, the more bacteria adhered on it.

  2. Initial polishing time affects gloss retention in resin composites.

    Science.gov (United States)

    Waheeb, Nehal; Silikas, Nick; Watts, David

    2012-10-01

    To determine the effect of finishing and polishing time on the surface gloss of various resin-composites before and after simulated toothbrushing. Eight representative resin-composites (Ceram X mono, Ceram X duo, Tetric EvoCeram, Venus Diamond, EsteliteSigma Quick, Esthet.X HD, Filtek Supreme XT and Spectrum TPH) were used to prepare 80 disc-shaped (12 mm x 2 mm) specimens. The two step system Venus Supra was used for polishing the specimens for 3 minutes (Group A) and 10 minutes (Group B). All specimens were subjected to 16,000 cycles of simulated toothbrushing. The surface gloss was measured after polishing and after brushing using the gloss meter. Results were evaluated using one way ANOVA, two ways ANOVA and Dennett's post hoc test (P = 0.05). Group B (10-minute polishing) resulted in higher gloss values (GV) for all specimens compared to Group A (3 minutes). Also Group B showed better gloss retention compared to Group A after simulated toothbrushing. In each group, there was a significant difference between the polished composite resins (P gloss after the simulated toothbrushing.

  3. Structural empowerment and work–family fit in nurses

    Directory of Open Access Journals (Sweden)

    Agnieszka Orłowska

    2016-12-01

    Full Text Available Background: The goal of the study was to investigate the relationship between structural empowerment and work–family fit in Polish nurses. Structural empowerment is a strategy for managing by providing the employees with opportunities, information, support and resources essential for the effective performance of work duties. Work–family fit takes 2 forms of relationships between these 2 spheres: conflict (functioning in one role is more difficult because of participation in the other role and facilitation (fulfilling the duties associated with one role enriches filling up the other role. Material and Methods: A total of 159 nurses employed in hospitals took part in the study. The Polish versions of the Conditions of Work Effectiveness Questionnaire and the Work–Family Fit Questionnaire were used. Hierarchical linear regression analysis was applied for data analysis. Results: The results show statistically signifficant relationships between structural empowerment and work–family fit in nurses. In the hospital environment, characterized by a high degree of empowerment, nurses experience a lower level of work–family conflict and a higher level of facilitation in both directions. Conclusions: Hospital management strategy based on structural empowerment of nurses favors reconciliation of professional and family roles. Therefore, it is important for hospitals to create appropriate working conditions that allow nurses to effectively deal with demands arising from work and family spheres. Med Pr 2016;67(6:787–800

  4. Material removal mechanisms in electrochemical-mechanical polishing of tantalum

    International Nuclear Information System (INIS)

    Gao, F.; Liang, H.

    2009-01-01

    Material removal mechanisms in tantalum chemical-mechanical polishing (CMP) and electrochemical-mechanical polishing (ECMP) were investigated using the single frequency electrochemical impedance spectroscopy (EIS). Through measuring the impedance of the tantalum surface, the single frequency EIS scan made it possible to observe the CMP and ECMP processes in situ. The impedance results presented competing mechanisms of removal and formation of a surface oxide layer of tantalum. Analysis indicated that the thickness of the oxide layer formed during polishing was related to the mechanical power correlated to the friction force and the rotating speed. Furthermore, the rate of growth and removal of the oxide film was a function of the mechanical power. This understanding is beneficial for optimization of CMP and ECMP processes.

  5. Research on Grinding and Polishing Force Control of Compliant Flange

    Directory of Open Access Journals (Sweden)

    Li Chuang

    2015-01-01

    Full Text Available The automation of the grinding and polishing process is important to improve the production efficiency of the part surfaces. In this paper, a new compliant flange mounted on the end of the industrial robots for the robotic grinding and polishing force control is developed. With regard to the non-linear and time-varying problem of the contact force, the mathematical model of the new force control system was presented and the fuzzy PID control strategy was used to drive the proposed system. Especially, the air spring and electric proportional valve is studied to establish the model. The simulation results show that the selected control strategy has quick response and good robustness, which satisfies the real-time requirements of the grinding and polishing force control in processing.

  6. [Polish medical ethics in the period 1945-1980].

    Science.gov (United States)

    Wichrowski, Marek

    2003-01-01

    The purpose of this article is o present that main currents of Polish medical ethics in the years 1945-1980, which the author treats as the 'prehistory' of Poland's contemporary bioethics. The author begins by ascertaining the post-war disappearance of two Polish traditions--that of the Warsaw school of philosopher-physicians (known in the West as the Polish School of Philosophy of Medicine) and the Lwów-Warsaw School of Philosophy. The political system that come into being after 1945 was not conducive to the development of medical ethics, but several clear orientations may be discerned in the utterances of physicians, lawyers, moral technologlans and academic philosophers. The analysis begins with Catholic ethics in its archaic 1950s-vintage form. The author then presents the thinking of ethicians Independent of both the Church and Marxism (the milieu of the journal 'Etyka') as well as the deontological writings of physicians.

  7. Condensate polishing guidelines for PWR and BWR plants

    International Nuclear Information System (INIS)

    Robbins, P.; Crinigan, P.; Graham, B.; Kohlmann, R.; Crosby, C.; Seager, J.; Bosold, R.; Gillen, J.; Kristensen, J.; McKeen, A.; Jones, V.; Sawochka, S.; Siegwarth, D.; Keeling, D.; Polidoroff, T.; Morgan, D.; Rickertsen, D.; Dyson, A.; Mills, W.; Coleman, L.

    1993-03-01

    Under EPRI sponsorship, an industry committee, similar in form and operation to other guideline committees, was created to develop Condensate Polishing Guidelines for both PWR and BWR systems. The committee reviewed the available utility and water treatment industry experience on system design and performance and incorporated operational and state-of-the-art information into document. These guidelines help utilities to optimize present condensate polisher designs as well as be a resource for retrofits or new construction. These guidelines present information that has not previously been presented in any consensus industry document. The committee generated guidelines that cover both deep bed and powdered resin systems as an integral part of the chemistry of PWR and BWR plants. The guidelines are separated into sections that deal with the basis for condensate polishing, system design, resin design and application, data management and performance and management responsibilities

  8. Development of clean chemical mechanical polishing systems; Clean CMP system

    Energy Technology Data Exchange (ETDEWEB)

    Tsujimura, M.; Hosokawa, M. [Ebara Corp., Tokyo (Japan)

    1998-10-20

    Described herein are clean chemical mechanical polishing (CMP) systems developed by Ebara. A CMP system needs advanced peripheral techniques, in addition to those for grinding adopted by the conventional system, in order to fully exhibit its inherent functions. An integrated design concept is essential for the CMP steps, including slurry supplying, polishing, washing, process controlling and waste fluid treatment. The Ebara has adopted a standard concept `Clean CMP, dry-in and dry-out of wafers,` and provided world`s highest grades of techniques for inter-layer insulating film, shallow trench isolation, plug and wiring. The head for the polishing module is specially designed by FEM, to improve homogeneity of wafers from the center to edges. The dresser is also specially designed, to improve pad surface topolody after dressing. A slurry dipsersing method is developed to reduce slurry consumption. Various washing modules, designed to have the same external shape, can be allocated to various functions. 10 figs.

  9. Development of hybrid fluid jet/float polishing process

    Science.gov (United States)

    Beaucamp, Anthony T. H.; Namba, Yoshiharu; Freeman, Richard R.

    2013-09-01

    On one hand, the "float polishing" process consists of a tin lap having many concentric grooves, cut from a flat by single point diamond turning. This lap is rotated above a hydrostatic bearing spindle of high rigidity, damping and rotational accuracy. The optical surface thus floats above a thin layer of abrasive particles. But whilst surface texture can be smoothed to ~0.1nm rms (as measured by atomic force microscopy), this process can only be used on flat surfaces. On the other hand, the CNC "fluid jet polishing" process consists of pumping a mixture of water and abrasive particles to a converging nozzle, thus generating a polishing spot that can be moved along a tool path with tight track spacing. But whilst tool path feed can be moderated to ultra-precisely correct form error on freeform optical surfaces, surface finish improvement is generally limited to ~1.5nm rms (with fine abrasives). This paper reports on the development of a novel finishing method, that combines the advantages of "fluid jet polishing" (i.e. freeform corrective capability) with "float polishing" (i.e. super-smooth surface finish of 0.1nm rms or less). To come up with this new "hybrid" method, computational fluid dynamic modeling of both processes in COMSOL is being used to characterize abrasion conditions and adapt the process parameters of experimental fluid jet polishing equipment, including: (1) geometrical shape of nozzle, (2) position relative to the surface, (3) control of inlet pressure. This new process is aimed at finishing of next generation X-Ray / Gamma Ray focusing optics.

  10. Centralized vs. decentralized nursing stations: effects on nurses' functional use of space and work environment.

    Science.gov (United States)

    Zborowsky, Terri; Bunker-Hellmich, Lou; Morelli, Agneta; O'Neill, Mike

    2010-01-01

    nursing stations exceeded recommended levels during all shifts. No significant differences were identified in nurses' perceptions of work control-demand-support in centralized and decentralized nursing station designs. The "hybrid" nursing design model in which decentralized nursing stations are coupled with centralized meeting rooms for consultation between staff members may strike a balance between the increase in computer duties and the ongoing need for communication and consultation that addresses the conflicting demands of technology and direct patient care.

  11. Barriers and Limitations of Mentoring in Polish Organizations

    Directory of Open Access Journals (Sweden)

    Joanna Mesjasz

    2013-09-01

    Full Text Available In Polish organizations one can recognize a lot of barriers in the mentoring implementation. According to the author, at the root of these barriers are hierarchies of values: social, national, organizational, and hierarchies of values represented by individual employees. The purpose of this article is to trace the sources of constraints in the mentoring implementation process. The analysis is carried out on several levels: from the broadest social perspective, through the national to the perspective of the organization. In the article, there are also presented actions that should be taken by Polish organizations to overcome barriers and constraints in the mentoring implementation process.

  12. Recurrent APC gene mutations in Polish FAP families

    Directory of Open Access Journals (Sweden)

    Pławski Andrzej

    2007-12-01

    Full Text Available Abstract The molecular diagnostics of genetically conditioned disorders is based on the identification of the mutations in the predisposing genes. Hereditary cancer disorders of the gastrointestinal tracts are caused by mutations of the tumour suppressor genes or the DNA repair genes. Occurrence of recurrent mutation allows improvement of molecular diagnostics. The mutation spectrum in the genes causing hereditary forms of colorectal cancers in the Polish population was previously described. In the present work an estimation of the frequency of the recurrent mutations of the APC gene was performed. Eight types of mutations occurred in 19.4% of our FAP families and these constitute 43% of all Polish diagnosed families.

  13. Mechanistic, kinetic, and processing aspects of tungsten chemical mechanical polishing

    Science.gov (United States)

    Stein, David

    This dissertation presents an investigation into tungsten chemical mechanical polishing (CMP). CMP is the industrially predominant unit operation that removes excess tungsten after non-selective chemical vapor deposition (CVD) during sub-micron integrated circuit (IC) manufacture. This work explores the CMP process from process engineering and fundamental mechanistic perspectives. The process engineering study optimized an existing CMP process to address issues of polish pad and wafer carrier life. Polish rates, post-CMP metrology of patterned wafers, electrical test data, and synergy with a thermal endpoint technique were used to determine the optimal process. The oxidation rate of tungsten during CMP is significantly lower than the removal rate under identical conditions. Tungsten polished without inhibition during cathodic potentiostatic control. Hertzian indenter model calculations preclude colloids of the size used in tungsten CMP slurries from indenting the tungsten surface. AFM surface topography maps and TEM images of post-CMP tungsten do not show evidence of plow marks or intergranular fracture. Polish rate is dependent on potassium iodate concentration; process temperature is not. The colloid species significantly affects the polish rate and process temperature. Process temperature is not a predictor of polish rate. A process energy balance indicates that the process temperature is predominantly due to shaft work, and that any heat of reaction evolved during the CMP process is negligible. Friction and adhesion between alumina and tungsten were studied using modified AFM techniques. Friction was constant with potassium iodate concentration, but varied with applied pressure. This corroborates the results from the energy balance. Adhesion between the alumina and the tungsten was proportional to the potassium iodate concentration. A heuristic mechanism, which captures the relationship between polish rate, pressure, velocity, and slurry chemistry, is presented

  14. Implementation of the Bulgarian-Polish online dictionary

    Directory of Open Access Journals (Sweden)

    Ludmila Dimitrova

    2015-11-01

    Full Text Available Implementation of the Bulgarian-Polish online dictionary The paper describes the implementation of an online Bulgarian-Polish dictionary as a technological tool for applications in digital humanities. This bilingual digital dictionary is developed in the frame of the joint research project “Semantics and Contrastive Linguistics with a focus on a bilingual electronic dictionary” between IMI-BAS and ISS-PAS, supervised by L. Dimitrova (IMI-BAS and V. Koseska-Toszewa (ISS-PAS. In addition, the main software tools for web-presentation of the dictionary are described briefly.

  15. Laser polishing for topography management of accelerator cavity surfaces

    Energy Technology Data Exchange (ETDEWEB)

    Zhao, Liang [College of William and Mary, Williamsburg, VA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Klopf, J. Mike [College of William and Mary, Williamsburg, VA (United States); Reece, Charles E. [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Kelley, Michael J. [College of William and Mary, Williamsburg, VA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

    2015-07-20

    Improved energy efficiency and reduced cost are greatly desired for advanced particle accelerators. Progress toward both can be made by atomically-smoothing the interior surface of the niobium superconducting radiofrequency accelerator cavities at the machine's heart. Laser polishing offers a green alternative to the present aggressive chemical processes. We found parameters suitable for polishing niobium in all surface states expected for cavity production. As a result, careful measurement of the resulting surface chemistry revealed a modest thinning of the surface oxide layer, but no contamination.

  16. Confocal Raman spectrocopy for the analysis of nail polish evidence.

    Science.gov (United States)

    López-López, Maria; Vaz, Joana; García-Ruiz, Carmen

    2015-06-01

    Nail polishes are cosmetic paints that may be susceptible of forensic analysis offering useful information to assist in a crime reconstruction. Although the nail polish appearance could allow a quick visual identification of the sample, this analysis is subjected to the perception and subjective interpretation of the forensic examiner. The chemical analysis of the nail polishes offers great deal of information not subjected to analyst interpretation. Confocal Raman spectroscopy is a well-suited technique for the analysis of paints due to its non-invasive and non-destructive nature and its ability to supply information about the organic and inorganic components of the sample. In this work, 77 regular and gel nail polishes were analyzed with confocal Raman spectroscopy using two laser wavelengths (532 and 780 nm). The sample behavior under the two laser wavelengths and the differences in the spectra taken at different points of the sample were studied for each nail polish. Additionally, the spectra obtained for all the nail polishes were visually compared. The results concluded that the longer laser wavelength prevents sample burning and fluorescence effects; the similarity among the spectra collected within the sample is not directly related with the presence of glitter particles; and 64% of the samples analyzed showed a characteristic spectrum. Additionally, the use of confocal Raman spectroscopy for the forensic analysis of nail polishes evidence in the form of flakes or smudges on different surfaces were studied. The results showed that both types of evidence can be analyzed by the technique. Also, two non-invasive sampling methods for the collection of the evidence from the nails of the suspect or the victim were proposed: (i) to use acetone-soaked cotton swabs to remove the nail varnishes and (ii) to scrape the nail polish from the nail with a blade. Both approaches, each exhibiting advantages and drawbacks in terms of transport and handling were appropriate

  17. Professional burnout among studying nurses

    Directory of Open Access Journals (Sweden)

    Olga Bielan

    2011-09-01

    Full Text Available Burnout is a response to stress, the source of which is the situation at work. This phenomenon concerns mainly representatives of professions whose essence is to work with people, including doctors, nurses, paramedics and others; their close committed interactions with others constitute the core of professional activity and determine the success and development. Participants of the study were 281 students of extramural complementary nursing course at the University of Warmia and Mazury, mostly aged 40-60 years, employed in hospital wards and with employment contracts. In the study, the authors’ demographic questionnaire of structuralized interview and the MBI questionnaire, developed by Maslach and Jackson, in the Polish version by Pasikowski (2004, were used. The obtained results were statistically analysed. The performed analysis of burnout has confirmed that emotional exhaustion is associated with the length of employment, the number of days off and the number of institutions where nurses were employed. We did not observe, however, any correlation with these variables between depersonalisation and a sense of the lack of achievements. Furthermore, no dependence of the severity of the professional burnout symptoms on the surveyed groups’ age was found. It turned out that the persons working in shifts system felt much stronger depletion of emotion than nurses working in a daily system. It was also observed that nurses employed in hospitals felt much stronger symptoms in both areas of occupational burnout than those working in other institutions. Furthermore, it was not confirmed that the absence of the sense of achievement depended on where the respondents were employed. Taking into account the reference levels of the three dimensions of burnout acc. to MBI it was found out that most respondents were characterized by a low value within the emotional exhaustion and depersonalisation and a high value in terms of a sense of the lack of

  18. The effects of preferred and non-preferred running strike patterns on tissue vibration properties.

    Science.gov (United States)

    Enders, Hendrik; von Tscharner, Vinzenz; Nigg, Benno M

    2014-03-01

    To characterize soft tissue vibrations during running with a preferred and a non-preferred strike pattern in shoes and barefoot. Cross-sectional study. Participants ran at 3.5 m s(-1) on a treadmill in shoes and barefoot using a rearfoot and a forefoot strike for each footwear condition. The preferred strike patterns for the subjects were a rearfoot strike and a forefoot strike for shod and barefoot running, respectively. Vibrations were recorded with an accelerometer overlying the belly of the medial gastrocnemius. Thirteen non-linearly scaled wavelets were used for the analysis. Damping was calculated as the overall decay of power in the acceleration signal post ground contact. A higher damping coefficient indicates higher damping capacities of the soft tissue. The shod rearfoot strike showed a 93% lower damping coefficient than the shod forefoot strike (pforefoot strike showed a trend toward a lower damping coefficient compared to a barefoot rearfoot strike. Running barefoot with a forefoot strike resulted in a significantly lower damping coefficient than a forefoot strike when wearing shoes (pstrike showed lower damping compared to a barefoot rearfoot strike (p<0.001). While rearfoot striking showed lower vibration frequencies in shod and barefoot running, it did not consistently result in lower damping coefficients. This study showed that the use of a preferred movement resulted in lower damping coefficients of running related soft tissue vibrations. Copyright © 2013 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

  19. Is the foot striking pattern more important than barefoot or shod conditions in running?

    Science.gov (United States)

    Shih, Yo; Lin, Kuan-Lun; Shiang, Tzyy-Yuang

    2013-07-01

    People have advocated barefoot running, claiming that it is better suited to human nature. Humans usually run barefoot using a forefoot strike and run shod using a heel strike. The striking pattern was thought to be a key factor that contributes to the benefit of barefoot running. The purpose of this study is to use scientific data to prove that the striking pattern is more important than barefoot or shod conditions for runners on running injuries prevention. Twelve habitually male shod runners were recruited to run under four varying conditions: barefoot running with a forefoot strike, barefoot running with a heel strike, shod running with a forefoot strike, and shod running with a heel strike. Kinetic and kinematic data and electromyography signals were recorded during the experiments. The results showed that the lower extremity can gain more compliance when running with a forefoot strike. Habitually shod runners can gain more shock absorption by changing the striking pattern to a forefoot strike when running with shoes and barefoot conditions. Habitually shod runners may be subject to injuries more easily when they run barefoot while maintaining their heel strike pattern. Higher muscle activity in the gastrocnemius was observed when running with a forefoot strike, which may imply a greater training load on the muscle and a tendency for injury. Copyright © 2013 Elsevier B.V. All rights reserved.

  20. Patellofemoral joint stress during running with alterations in foot strike pattern.

    Science.gov (United States)

    Vannatta, Charles Nathan; Kernozek, Thomas W

    2015-05-01

    This study aimed to quantify differences in patellofemoral joint stress that may occur when healthy runners alter their foot strike pattern from their habitual rearfoot strike to a forefoot strike to gain insight on the potential etiology and treatment methods of patellofemoral pain. Sixteen healthy female runners completed 20 running trials in a controlled laboratory setting under rearfoot strike and forefoot strike conditions. Kinetic and kinematic data were used to drive a static optimization technique to estimate individual muscle forces to input into a model of the patellofemoral joint to estimate joint stress during running. Peak patellofemoral joint stress and the stress-time integral over stance phase decreased by 27% and 12%, respectively, in the forefoot strike condition (P forefoot strike condition (P forefoot strike (P forefoot strike condition (P strike pattern to a forefoot strike results in consistent reductions in patellofemoral joint stress independent of changes in step length. Thus, implementation of forefoot strike training programs may be warranted in the treatment of runners with patellofemoral pain. However, it is suggested that the transition to a forefoot strike pattern should be completed in a graduated manner.

  1. Global Strike 2035: Considerations for Enabling Effective Command and Control

    Science.gov (United States)

    2012-02-16

    reach places .1 Broadly grouped under the moniker Global Strike,2 this family-of-systems capability should mature by 2035 leading to the realization of...and] ‘micro-actors with massive impact,’…[combine] with new technology and new or transfigured ways of war, but the old threats also remain and have...as the Joint Time-Sensitive Targets Manager (JTSTM),38 “operators and analysts [could] access the same dynamic common operating picture…to provide

  2. Principles Governing the Mechanics and Control of Snake Strikes

    Science.gov (United States)

    2015-06-26

    small, potentially evasive target with an impact sufficient for prey capture but without 1. REPORT DATE (DD-MM-YYYY) 4. TITLE AND SUBTITLE 13...strike a small, potentially evasive target with an impact sufficient for prey capture but without damaging their lightly-built skull. Although the...p o rt io n o f To ta l M as s Segment Number Boa/Python Mean Colubrid Mean Viper Mean Figure 3 – Proportion of body mass in each of 10 equal-length

  3. LAW AND ETHICS OF STRIKES IN THE NIGERIAN HEALTH SYSTEM

    African Journals Online (AJOL)

    2014-10-06

    Oct 6, 2014 ... the profession's oath of association before they are admitted. For the doctors the commitments are described in the Physician's (Hippocratic). Oath or in the Declaration of Geneva, as amended. Nurses have theirs in the Florence. Nightingale Pledge while for pharmacists theirs is in the Pharmacist's Oath.

  4. Chemical Mechanical Polishing of Ruthenium, Cobalt, and Black Diamond Films

    Science.gov (United States)

    Peethala, Brown Cornelius

    Ta/TaN bilayer serves as the diffusion barrier as well as the adhesion promoter between Cu and the dielectric in 32 nm technology devices. A key concern of future technology devices (layer (vs. a bilayer of Ta/TaN) to act as a barrier. During patterning, they need to be planarized using conventional chemical mechanical polishing (CMP) to achieve a planar surface. However, CMP of these new barrier materials requires novel slurry compositions that provide adequate selectivity towards Cu and dielectric films, and minimize galvanic corrosion. Apart from the application as a barrier, Ru also has been proposed as a lower electrode material in metal-insulator-metal capacitors where high (> 50 nm/min) Ru removal rates (RRs) are required and as a stop layer in magnetic recording head fabrication where low (hydroxide (KOH). It was also determined that increased the ionic strength is not responsible for the observed increase in Ru removal rate. Benzotirazole (BTA) and ascorbic acid were added to the slurry to reduce the open circuit potential (Eoc) difference between Cu and Ru to ˜20 mV from about 550 mV in the absence of additives. A removal mechanism with KIO4 as the oxidizing agent is proposed based on the formation of several ruthenium oxides, some of which formed residues on the polishing pad below a pH of ˜7. Next, a colloidal silica-based slurry with hydrogen peroxide (H 2O2) as the oxidizer (1 wt%), and arginine (0.5 wt%) as the complexing agent was developed to polish Co at pH 10. The Eoc between Cu and Co at the above conditions was reduced to ˜20 mV compared to ˜250 mV in the absence of additives, suggestive of reduced galvanic corrosion during the Co polishing. The slurry also has the advantages of good post-polish surface quality at pH 10, and no dissolution rate. BTA at a concentration of 5mM in this slurry inhibited Cu dissolution rates and yielded a Cu/Co RR ratio of ˜0.8:1 while the open potential difference between Cu and Co was further reduced to ˜10

  5. 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...

  6. Simulation and analysis of an alternative kinematics for improving the polishing uniformity over the surface of polished tiles

    Directory of Open Access Journals (Sweden)

    Weingaertner, W. L.

    2010-10-01

    Full Text Available The present work investigates the possibility of adopting a new kinematics at the industrial polishing lines of porcelain stoneware tile. An alternative motion of the transverse oscillation of the polishing heads is proposed, in which no radical changes in the industries facilities are required. The basic idea is to replace the purely sinus motion of the polishing heads by a rather trapezoid wavelike motion. In theory this could be achieved simply by adopting regular delays at the transverse oscillation motion. Consequences of this alternative kinematics were quantitatively analyzed considering the spatial homogeneity of polishing expected for tiles. Such homogeneity was represented by the coefficient of variation of the distribution of polishing time over the surface, which was in turn determined by means of computational simulations, taking into account the effect of multiple polishing heads.

    El presente trabajo investiga la posibilidad de adoptar una nueva cinemática en las líneas de pulido industrial de baldosas de gres porcelánico. Se propone una propuesta alternativa de la oscilación transversal de los cabezales pulidores, en el que no hay cambios radicales en las instalaciones de las industrias son necesarias. La idea básica consiste en sustituir el movimiento totalmente del seno de los cabezales pulidores por un movimiento ondulatorio trapezoide. En teoría, esto podría lograrse sólo mediante la adopción de los habituales retrasos en el movimiento de oscilación transversal. las consecuencias de esta cinemática fueron analizados cuantitativamente, teniendo en cuenta la homogeneidad espacial de pulido. Tal homogeneidad fora representada por el coeficiente de variación de la distribución de lo tiempo de pulido en la superficie, determinada por medio de simulaciones computacionales, teniendo también en cuenta el efecto de pulido de las cabezas múltiples.

  7. 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.

  8. 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.

  9. The View of Lithuanian Statehood Held by the Polish Underground during 1939-1944

    OpenAIRE

    Bubnys, Arūnas

    2006-01-01

    The article investigates the attitudes of Polish underground actors towards the statehood of Lithuania, its territorial integrity, and Lithuanian-Polish relations during the World War II. The author draws the conclusion that Polish underground political structures expressed a hostile and prejudiced attitude towards Lithuania. All the blame and responsibility for bad mutual relations is put on Lithuania and Lithuanians. Polish underground actors living in Vilnija were extremely hostile towards...

  10. Semi-strong informational efficiency in the Polish foreign exchange market

    OpenAIRE

    Luksz Goczek

    2015-01-01

    During the financial crisis a notion that the Polish exchange rate is not determined effectively was very dominant, because of a contagion effect of the global financial crisis on the Polish economy. In addition, many foreign exchange market analysts explained developments in the Polish exchange market trough a hypothesis that the Polish zloty exchange rate follows other exchange rates. This contradicts market efficiency as this would lead to profitable arbitrage possibility based on past inf...

  11. 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 ...

  12. The role of trade union organization in solving labor disputes and strikes in Vietnam

    Directory of Open Access Journals (Sweden)

    Nguen T.H.

    2017-01-01

    Full Text Available the article describes the role of the trade union organization in solving labor disputes and strikes and the legal basis of the role of trade union organization in solving labor disputes and strikes in Vietnam.

  13. Comparison of fertility ratios, attitudes and beliefs of Polish and Czech women

    Directory of Open Access Journals (Sweden)

    Andrzej Brodziak

    2013-06-01

    Full Text Available Aim of the study: The aim of this study was to estimate some basic data related to the fertility in the chosen groups of Polish and Czech women. We have tried to acquire and analyze the attitudes and beliefs of these women in motherhood and the desire to have children. These data enable to verify the interdisciplinary hypothesis explaining the decline of birth rate and low fertility in European countries. Materials and methods: The authors performed the survey by means of a questionnaire formulated after a comprehensive discussion of possible reasons of birth rate decline. They have tried through the questions of the survey to verify the hypothesis that the decline is the result of the cumulative mental changes occurring in contemporary societies. The questionnaire completed 90 Polish women students pursuing complementary studies of nursing in Higher School of Applied Sciences in Nysa, during the academic year 2012/2013. The questionnaire also completed 53 Czech women students pursuing part-time studies and training at the Tomas Bata University in Zlin (the Czech Republic. Results: The above surveyed 90 Polish women gave birth to 132 children, so fertility rates is 1.46. The average age at the birth of the first child was 24.7 years, of the second child 27.5 and of the third child 31.7 years. The surveyed 53 Czech women gave birth to 86 children, so fertility rates is 1.62. The average age at birth of the first child was 24.7 years, of the second child 27.2 and of the third child 27,5 years. The authors present also convictions, beliefs and attitudes of the women under study. Conclusions: The multifaceted and interdisciplinary hypothesis (theoretical model formulated at the outset of our work, can be useful for attempts to estimate the pro-family attitudes in different populations of women. The results in the light of compliance with the proposed theoretical model allow for the formulation of proposals for action, which would counteract the

  14. THE EFFECT OF STEP RATE MANIPULATION ON FOOT STRIKE PATTERN OF LONG DISTANCE RUNNERS.

    Science.gov (United States)

    Allen, Darrell J; Heisler, Hollie; Mooney, Jennifer; Kring, Richard

    2016-02-01

    Running gait retraining to change foot strike pattern in runners from a heel strike pattern to a non heel- strike pattern has been shown to reduce impact forces and may help to reduce running related injuries. Step rate manipulation above preferred is known to help decrease step length, foot inclination angle, and vertical mass excursion, but has not yet been evaluated as a method to change foot strike pattern. The purpose of this study was to investigate the effect of step rate manipulation on foot strike pattern in shod recreational runners who run with a heel strike pattern. A secondary purpose was to describe the effect of step rate manipulation at specific percentages above preferred on foot inclination angle at initial contact. Forty volunteer runners, who were self-reported heel strikers and had a weekly running mileage of at least 10 miles, were recruited. Runners were confirmed to be heel strikers during the warm up period on the treadmill. The subject's step rate was determined at their preferred running pace. A metronome was used to increase step rate above the preferred step rate by 5%, 10% and 15%. 2D video motion analysis was utilized to determine foot strike pattern and to measure foot inclination angle at initial contact for each step rate condition. There was a statistically significant change in foot strike pattern from a heel strike pattern to a mid-foot or forefoot strike pattern at both 10% and 15% step rates above preferred. Seven of the 40 subjects (17.5%) changed from a heel- strike pattern to a non- heel strike pattern at +10% and 12 of the 40 subjects (30%) changed to a non-heel strike pattern at +15%. Mean foot inclination angle at initial contact showed a statistically significant change (reduction) as step rate increased. Step rate manipulation of 10% or greater may be enough to change foot strike pattern from a heel strike to a mid-foot or forefoot strike pattern in a small percentage of recreational runners who run in traditional

  15. Onset of aseismic creep on major strike-slip faults

    KAUST Repository

    Ç akir, Ziyadin; Ergintav, Semih; Ö zener, Haluk; Doǧan, Uǧur; Akoglu, Ahmet; Meghraoui, Mustapha; Reilinger, Robert E.

    2012-01-01

    Time series analysis of spaceborne synthetic aperture radar (SAR) data, GPS measurements, and fi eld observations reveal that the central section of the Izmit (Turkey) fault that slipped with a supershear rupture velocity in the A.D. 1999, Mw7.4, Izmit earthquake began creeping aseismically following the earthquake. Rapid initial postseismic afterslip decayed logarithmically with time and appears to have reached a steady rate comparable to the preearthquake full fault-crossing rate, suggesting that it may continue for decades and possibly until late in the earthquake cycle. If confi rmed by future monitoring, these observations identify postseismic afterslip as a mechanism for initiating creep behavior along strike-slip faults. Long-term afterslip and/or creep has signifi cant implications for earthquake cycle models, recurrence intervals of large earthquakes, and accordingly, seismic hazard estimation along mature strike-slip faults, in particular for Istanbul which is believed to lie adjacent to a seismic gap along the North Anatolian fault in the Sea of Marmara. © 2012 Geological Society of America.

  16. Onset of aseismic creep on major strike-slip faults

    KAUST Repository

    Çakir, Ziyadin

    2012-10-02

    Time series analysis of spaceborne synthetic aperture radar (SAR) data, GPS measurements, and fi eld observations reveal that the central section of the Izmit (Turkey) fault that slipped with a supershear rupture velocity in the A.D. 1999, Mw7.4, Izmit earthquake began creeping aseismically following the earthquake. Rapid initial postseismic afterslip decayed logarithmically with time and appears to have reached a steady rate comparable to the preearthquake full fault-crossing rate, suggesting that it may continue for decades and possibly until late in the earthquake cycle. If confi rmed by future monitoring, these observations identify postseismic afterslip as a mechanism for initiating creep behavior along strike-slip faults. Long-term afterslip and/or creep has signifi cant implications for earthquake cycle models, recurrence intervals of large earthquakes, and accordingly, seismic hazard estimation along mature strike-slip faults, in particular for Istanbul which is believed to lie adjacent to a seismic gap along the North Anatolian fault in the Sea of Marmara. © 2012 Geological Society of America.

  17. PSpice Model of Lightning Strike to a Steel Reinforced Structure

    International Nuclear Information System (INIS)

    Koone, Neil; Condren, Brian

    2003-01-01

    Surges and arcs from lightning can pose hazards to personnel and sensitive equipment, and processes. Steel reinforcement in structures can act as a Faraday cage mitigating lightning effects. Knowing a structure's response to a lightning strike allows hazards associated with lightning to be analyzed. A model of lightning's response in a steel reinforced structure has been developed using PSpice (a commercial circuit simulation). Segments of rebar are modeled as inductors and resistors in series. A program has been written to take architectural information of a steel reinforced structure and 'build' a circuit network that is analogous to the network of reinforcement in a facility. A severe current waveform (simulating a 99th percentile lightning strike), modeled as a current source, is introduced in the circuit network, and potential differences within the structure are determined using PSpice. A visual three-dimensional model of the facility displays the voltage distribution across the structure using color to indicate the potential difference relative to the floor. Clear air arcing distances can be calculated from the voltage distribution using a conservative value for the dielectric breakdown strength of air. Potential validation tests for the model will be presented

  18. Effect of Polishing Systems on Surface Roughness and Topography of Monolithic Zirconia.

    Science.gov (United States)

    Goo, C L; Yap, Auj; Tan, Kbc; Fawzy, A S

    2016-01-01

    This study evaluated the effect of different chairside polishing systems on the surface roughness and topography of monolithic zirconia. Thirty-five monolithic zirconia specimens (Lava PLUS, 3M ESPE) were fabricated and divided into five groups of seven and polished with the following: Group 1 (WZ)-Dura white stone followed by Shofu zirconia polishing kit; Group 2 (SZ)-Shofu zirconia polishing kit; Group 3 (CE)-Ceramiste porcelain polishers; Group 4 (CM)-Ceramaster porcelain polishers; and Group 5 (KZ)-Komet ZR zirconia polishers. All specimens were ground with a fine-grit diamond bur prior to polishing procedures to simulate clinical finishing. Baseline and post-polishing profilometric readings were recorded and delta Ra values (difference in mean surface roughness before and after polishing) were computed and analyzed using one-way analysis of variance and Scheffe post hoc test (pSEM) images of the ground but unpolished and polished specimens were acquired. Delta Ra values ranged from 0.146 for CE to 0.400 for KZ. Delta Ra values for KZ, WZ, and SZ were significantly greater than for CE. Significant differences in delta Ra values were also observed between KZ and CM. The SEM images obtained were consistent with the profilometric findings. Diamond-impregnated polishing systems were more effective than silica carbide-impregnated ones in reducing the surface roughness of ground monolithic zirconia.

  19. Study on combined polishing process of aspherical aluminum mirrors

    Science.gov (United States)

    Deng, Jinqiu; Peng, Xiaoqiang; Hu, Hao; Ge, Kunpeng

    2017-10-01

    The aluminum mirrors are widely used as important optical components in some vital fields such as astronomical instruments or military installations due to the unique advantages of aluminum alloy. In order to simplify the structure of optical system and improve the performance at the same time, it's a tendency that the optics will be designed to aspherical or other freeform shapes. However, the traditional techniques are falling to have adequate abilities to deal with the increasing demands of aluminum optics. For example, the tool marks leaved on the surface from single point diamond turning (SPDT) has obvious adverse effects to optical system. The deterministic and sub-aperture polishing process has showed the potential to fabricate complex shapes over the few years. But it's still recognized as a problem to polish bare aluminum directly because of its soft surface and active chemical characteristics. Therefore, a combination of magnetorheological finishing (MRF) and small tool polishing (STP) is applied to obtain high performance aluminum optics in this paper. A paraboloid aluminum mirror was polished with this proposed method, and the results showed that the surface texture of the sample is restrained from rms 0.409λ (λ=632.8nm) to rms 0.025λ, and the surface roughness is improved from average Ra 6 7nm to Ra 3 4nm.

  20. Using Nail Polish to Teach about Gender and Homophobia

    Science.gov (United States)

    Edwards, Nelta M.

    2010-01-01

    How might teachers help students investigate the relationship between gender and homophobia? This article describes an exercise that uses fingernail polish to do just that. The authors uses anecdotal evidence to describe the exercise in which students pair with someone of the opposite gender and paint each other's fingernails. Additionally, the…

  1. In-situ photopatterning of hydrogel microarrays in polished microchips

    NARCIS (Netherlands)

    Gümüscü, B.; van den Berg, Albert; Eijkel, Jan C.T.

    2015-01-01

    We present a fabrication method which enables simple and eproducible photopatterning of micron- sized hydrogel arrays inside closed microchips. To achieve this, the glass cover of the microchip is thinned by mechanical grinding and polishing. This procedure reduces the spacing between the photomask

  2. Bioethanol productions from rice polish by optimization of dilute acid ...

    African Journals Online (AJOL)

    Lignocellulose materials are abundant renewable resource for the production of biofuel from fermentative organism (Sacchromyces cervesiae). Rice polish is cheapest and abundant lignocelluloses resource and has potential to produce bioethanol. The main steps for the conversion of biomass into glucose required dilute ...

  3. An operational map of the Polish Coastal Front 1970

    DEFF Research Database (Denmark)

    Nielsen, Thomas Theis; Svenningsen, Stig Roar; Tinning, Morten

    2016-01-01

    The map of the Operational Plan for the Coastal Front, from Poland 1970 forms the basis for this paper. The map portraits the blueprint of the combined operational war plans for the Polish military in the late 1960’s and 70’s. It details the offensive against NATO countries and their forces...

  4. Social Interest in The Polish Doctrine of Monument Preservation

    Science.gov (United States)

    Antoszczyszyn, Marek

    2017-10-01

    The paper discusses a controversy surrounding the latest amendment to the text of the Polish Parliament Act Conservation and the Care of Monuments (2015). It is a common dictum that any edifice cannot exist without good foundations. In this particular case of the mentioned above Act, definition of monument appears to be such a basis. A social interest is one of the constituent elements of the definition mentioned above. In the first part of the paper the notion of the social interest expression has been discussed, particularly from national and international points of view. The second part of the paper comprises some examples from the Polish monument preservation experience with the use of comparison method supported by case study. Only three big Polish cities: Warsaw, Wroclaw and Szczecin are involved in the presented case study but it must be emphasized that many other places on Polish territory experienced the same. Basing on the faith of these cities, the results and discussion chapter proves fundamental discrepancy in social interest notion between national and international scopes using some analytical methods. Finally, in the discussion chapter some proposals for the future amendment of monument definition in the Act of Conservation and the Care of Monuments have been provided.

  5. Financial repression, money growth, and seignorage: The Polish experience

    NARCIS (Netherlands)

    Aarle, B. van; Budina, N.

    1997-01-01

    Financial Repression, Money Growth and Seignorage: The Polish Experience. — A small analytical framework is developed to analyze the relation between reserve requirements, base money growth and seignorage revenues. From the analysis, the authors can derive of steady-state seignorage revenues as a

  6. Detection of Polish clinical Aspergillus fumigatus isolates resistant to triazoles

    DEFF Research Database (Denmark)

    Nawrot, Urszula; Kurzyk, Ewelina; Arendrup, Maiken Cavling

    2018-01-01

    We studied the presence of triazole resistance of 121 Aspergillus fumigatus clinical isolates collected in two Polish cities, Warsaw and Wrocław, to determine if resistance is emerging in our country. We identified five itraconazole resistant isolates (4.13%) carrying the TR34/L98H alteration...

  7. Values Education--A Reality or Myth in Polish Schools

    Science.gov (United States)

    Switala, Eugeniusz

    2015-01-01

    The United Nations Decade of Education for Sustainable Development (DESD), which is coming to an end, will offer all kinds of summaries and reflections on this issue. The aim of this paper, strictly related with the goals of the DESD, is to answer the following questions: (1) "Is the Polish school ready to provide values education?"; (2)…

  8. Violation of interest-rate parity: a Polish example

    Science.gov (United States)

    Przystawa, Jerzy; Wolf, Marek

    2000-09-01

    The mechanism of the so-called “Bagsik Oscillator” is presented and discussed. In essence, it is a repeated exploitation of arbitrage opportunities that resulted from a marked departure from the interest-rate parity relationship between the local Polish currency and the western currencies.

  9. Novel ceria-polymer microcomposites for chemical mechanical polishing

    International Nuclear Information System (INIS)

    Coutinho, Cecil A.; Mudhivarthi, Subrahmanya R.; Kumar, Ashok; Gupta, Vinay K.

    2008-01-01

    Abrasive particles are key components in slurries for chemical mechanical polishing (CMP). Since the particle characteristics determine surface quality of wafers during polishing, in this research, novel abrasive composite particles have been developed. These composite particles contain nanoparticles of ceria dispersed within cross-linked, polymeric microspheres such that the average mass fraction of ceria is approximately 50% in the particles. The microspheres are formed by co-polymerization of N-isopropylacrylamide (NIPAM) with 3-(trimethoxysilyl)propyl methacrylate (MPS) and contain interpenetrating (IP) chains of poly(acrylic acid) (PAAc). Infrared spectroscopy, dynamic light scattering, and transmission electron microscopy are employed to characterize the composite particles. Planarization of silicon dioxide wafers is studied on a bench-top CMP tester and the polished surfaces are characterized by ellipsometry, atomic force and optical microscopy. Slurries formed from the composite ceria-polymer particles lead to lower topographical variations and surface roughness than slurries of only ceria nanoparticles even though both slurries achieve similar removal rates of ∼100 nm/min for similar ceria content. Polishing with the novel composite particles gives surfaces devoid of scratches and particle deposition, which makes these particles suitable for the next generation slurries in CMP

  10. Novel ceria-polymer microcomposites for chemical mechanical polishing

    Energy Technology Data Exchange (ETDEWEB)

    Coutinho, Cecil A. [Department of Chemical and Biomedical Engineering, University of South Florida (United States); Mudhivarthi, Subrahmanya R.; Kumar, Ashok [Nanomaterials and Nanomanufacturing Research Center, University of South Florida (United States); Department of Mechanical Engineering, University of South Florida (United States); Gupta, Vinay K. [Department of Chemical and Biomedical Engineering, University of South Florida (United States)], E-mail: vkgupta@eng.usf.edu

    2008-12-30

    Abrasive particles are key components in slurries for chemical mechanical polishing (CMP). Since the particle characteristics determine surface quality of wafers during polishing, in this research, novel abrasive composite particles have been developed. These composite particles contain nanoparticles of ceria dispersed within cross-linked, polymeric microspheres such that the average mass fraction of ceria is approximately 50% in the particles. The microspheres are formed by co-polymerization of N-isopropylacrylamide (NIPAM) with 3-(trimethoxysilyl)propyl methacrylate (MPS) and contain interpenetrating (IP) chains of poly(acrylic acid) (PAAc). Infrared spectroscopy, dynamic light scattering, and transmission electron microscopy are employed to characterize the composite particles. Planarization of silicon dioxide wafers is studied on a bench-top CMP tester and the polished surfaces are characterized by ellipsometry, atomic force and optical microscopy. Slurries formed from the composite ceria-polymer particles lead to lower topographical variations and surface roughness than slurries of only ceria nanoparticles even though both slurries achieve similar removal rates of {approx}100 nm/min for similar ceria content. Polishing with the novel composite particles gives surfaces devoid of scratches and particle deposition, which makes these particles suitable for the next generation slurries in CMP.

  11. Empirical relations of sediment transport prediction in Polish multibanks shore

    International Nuclear Information System (INIS)

    Pruszak, Z.

    1995-01-01

    Qualitative and quantitative description of various elements of bottom sediment movement in Polish multibanks coastal region has been down. Empirical relations linking transport velocity, thickness of the drag layer and the transport volume with the generating wave-current background have been presented. Practical engineering advices on performance of various reports concerning coastal engineering or coastal zone ecology. (author)

  12. Diamond turning and polishing tests on new RSP aluminium alloys

    NARCIS (Netherlands)

    Horst, R. ter; Haan, M. de; Gubbels, G.P.H.; Senden, R.; Venrooy, B.W.H. van; Hoogstrate, A.M.

    2012-01-01

    For years now conventional aluminium 6061 T6 has widely been used for mirrors in astronomical instruments, being diamond turned or since a few years also being optically polished. This allows the development of optical systems that can be tested and operated at any temperature, without being

  13. The Profile of a Polish Mutual Fund Manager

    Directory of Open Access Journals (Sweden)

    Dariusz Filip

    2018-05-01

    Full Text Available Aim/purpose - The purpose of this paper is to identify the characteristics that are typical of mutual fund managers. Design/methodology/approach - The study concentrates on a set of socio-demographic data, such as: age, gender, education, experience, and professional qualifications of 336 portfolio managers. The applied research strategy relies on an analysis concerning a set of statistical metrics describing the population under examination. Findings - The average Polish fund manager is a 37-year-old man, a holder of a stock-broker or investment adviser license. He obtained the authorization from the Polish Financial Supervision Authority (KNF a few years after graduating from the Warsaw School of Economics (SGH. He has 11 years' experience in financial markets and 7 years' experience in the mutual fund industry. Research implications/limitations - The identification of managerial characteristics for the purpose of creating a profile of a Polish mutual fund manager will provide an important basis for further surveys and analyses aimed to evaluate the effectiveness of mutual funds. Originality/value/contribution - There are no investigations within the discussed area in Polish studies. Therefore, the identification of the characteristics that are typical of mutual fund managers will make a contribution to the finance literature.(original abstract

  14. Polish scientists in fish immunology: a short history : review

    NARCIS (Netherlands)

    Muiswinkel, van W.B.; Pilarczyk, A.

    2015-01-01

    This review describes the role played by Polish scientists in the field of fish immunology and vaccination starting around 1900. In the early days, most publications were dealing with a description of relevant cells and organs in fish. Functional studies (phagocytosis, antibody response) came later

  15. Clear and compelling evidence: the Polish tribunal on abortion rights.

    Science.gov (United States)

    Girard, Françoise; Nowicka, Wanda

    2002-05-01

    On 25 July 2001 the Polish Federation for Women and Family Planning organised a Tribunal on Abortion Rights in Warsaw, to publicize the negative consequences of the criminalization of abortion in Poland. A panel of Polish and foreign experts heard the testimonials of seven Polish women's experiences under the 1993 "Anti-Abortion Act". Only two of the seven women were able to tell their stories in person. One died in 2001, at the age of 21, of an unsafe abortion. One is legally blind after having carried her last pregnancy to term. One is in prison for infanticide, which in all likelihood was committed by her boyfriend. National and foreign journalists were in attendance, as well as observers from all walks of life--writers, students, mothers, activists, feminists, husbands. The evidence was clear and compelling. Restrictive abortion laws make abortion unsafe by pushing it underground, endanger women's health, create a climate where even those services that are allowed by law-become unavailable, and contravene standards set by international human rights law. The restrictive abortion law in Poland has not increased the number of births; it has only caused women and their families suffering. The Tribunal brought the issue of abortion into the media prior to an election campaign and galvanised Polish and other Eastern European women's groups to become more active in defence of abortion rights.

  16. Heavy Metal Contamination of Popular Nail Polishes in Iran

    Directory of Open Access Journals (Sweden)

    Golnaz Karimi

    2015-06-01

    Full Text Available Background: Toxic and hazardous heavy metals like arsenic, lead, mercury, zinc, chromium and iron are found in a variety of personal care products, e.g. lipstick, whitening toothpaste, eyeliner and nail color. The nails absorb the pigments of nail polishes and vaporized or soluble metals can easily pass it. The goal of this survey was to assess whether the different colors of nail polishes comply with maximum concentrations of heavy metals in the EPA’s guidelines. Methods: 150 samples of different popular brands of nail polishes in 13 colors (yellow, beige, silver, pink, white, violet, brown, golden, green, black, colorless, red and blue were randomly purchased from beauty shops in Tehran City, Iran, in 2014. Microwave digestion EPA method 3051 was used by a microwave oven to determine the amount of 5 heavy metals; Nickel, Chromium, Lead, Arsenic and Cadmium. One-way ANOVA, Two-way ANOVA, hierarchical cluster, and principal component analyses were applied by Statistica 7.0 software. Results: The concentrations of chrome, lead, nickel and arsenic showed significant differences between the colors (p<0.05. In all studied samples, the level of cadmium was beyond the safe maximum permissible limit (MPS, but no significance difference in the cadmium content was identified. Conclusion: Due to the high concentrations of toxic metals in many brands of nail polishes, meticulous quality control is recommended for these beauty products.

  17. Polish adaptation of scoliosis research society-22 questionnaire.

    Science.gov (United States)

    Glowacki, Maciej; Misterska, Ewa; Laurentowska, Maria; Mankowski, Przemyslaw

    2009-05-01

    Polish adaptation of the original version of Scoliosis Research Society (SRS) instrument. The transcultural adaptation of SRS-22 and evaluation of its internal consistency. High psychometric value of the SRS-22 Questionnaire has made it an effective evaluation instrument in clinically assessing the functional status of patients with adolescent idiopathic scoliosis. First, 2 translators translated the original version into Polish. Afterwards, the translators identified differences between the translations and produced a consensus version. In the third stage, 2 native English speakers produced back translations. Finally, a team of 2 orthopedic surgeons, translators, a statistician and a psychologist reviewed all the translations to produce a prefinal version. The questionnaire was administered to 60 girls at the age of 16.6, SD 2.0 with adolescent idiopathic scoliosis treated with the Cotrel-Dubousset method in Pediatric Orthopaedics and Traumatology Clinic in Poznań. The internal consistency in the Polish version equaled 0.89 for the overall result and 0.81 for function, 0.81 for pain, 0.80 for mental health, 0.77 for self-image, and 0.69 for treatment satisfaction domains, respectively. The Polish version of SRS-22 is characterized by high internal consistency for all domains and for the overall score, which makes it an evaluation tool after surgical treatment compatible with the original SRS-22.

  18. Summary of Synthetic Lap Polishing Experiments at LLNL, FY95

    International Nuclear Information System (INIS)

    Nichols, M A

    2001-01-01

    The purpose of this research was to support the optics finishing development work for the NIF, the National Ignition Facility. One of the major expenses for the construction of NIF is the cost of finishing of the large aperture optics. One way to significantly reduce the cost of the project is to develop processes to reduce the amount of time necessary to polish the more than 3,000 amplifier slabs. These slabs are rectangular with an aspect ratio of more than twenty to one and are made of a very temperature sensitive glass, Nd doped phosphate laser glass. As a result of this effort, we could potentially reduce the time necessary to polish each surface of an amplifier from 20-30 hours of run time to under an hour to achieve the same removal and still maintain a flatness of between one to three waves concave figure. We also feel confident that we can polish rectangular thermally sensitive glass flat by use of temperature control of the polishing platen, pad curvature, slurry concentration with temperature control, pad rotation, and pressure; although further, larger scale experiments are necessary to gain sufficient confidence that such a procedure could be successfully fielded

  19. Foot strike and injury rates in endurance runners: a retrospective study.

    Science.gov (United States)

    Daoud, Adam I; Geissler, Gary J; Wang, Frank; Saretsky, Jason; Daoud, Yahya A; Lieberman, Daniel E

    2012-07-01

    This retrospective study tests if runners who habitually forefoot strike have different rates of injury than runners who habitually rearfoot strike. We measured the strike characteristics of middle- and long-distance runners from a collegiate cross-country team and quantified their history of injury, including the incidence and rate of specific injuries, the severity of each injury, and the rate of mild, moderate, and severe injuries per mile run. Of the 52 runners studied, 36 (69%) primarily used a rearfoot strike and 16 (31%) primarily used a forefoot strike. Approximately 74% of runners experienced a moderate or severe injury each year, but those who habitually rearfoot strike had approximately twice the rate of repetitive stress injuries than individuals who habitually forefoot strike. Traumatic injury rates were not significantly different between the two groups. A generalized linear model showed that strike type, sex, race distance, and average miles per week each correlate significantly (P strike have significantly higher rates of repetitive stress injury than those who mostly forefoot strike. This study does not test the causal bases for this general difference. One hypothesis, which requires further research, is that the absence of a marked impact peak in the ground reaction force during a forefoot strike compared with a rearfoot strike may contribute to lower rates of injuries in habitual forefoot strikers.

  20. Causes of falls of hangingwall over gullies adjacent to stabilizing strike pillars

    CSIR Research Space (South Africa)

    Turner, PA

    1987-08-01

    Full Text Available This report discusses the occurrence of falls of ground in strike gullies. Falls of hangingwall over strike gullies on the up-dip side of strike stabilizing pillars in longwall mining systems were investigated. Gullies were examined in both...

  1. Great Britain and German-Polish Relations, 1929–1931

    Directory of Open Access Journals (Sweden)

    Zotova Ekaterina

    2014-12-01

    Full Text Available The article deals with the study of British-German relations during the period of exacerbation of territorial disputes between Germany and Poland in 1929-1931. Germany was making plans for revising the eastern borders. It sought to enlist the support of the new Labour government. Britain didn’t only approve of Germany's intention to carry out revision of the Treaty of Versailles (reparation issue, the evacuation of the Rhineland and the change in the German-Polish border, but also supported the strengthening of the political and economic situation in Germany as a whole. Assistance to Germany was advantageous for Britain. Firstly, the British support helped to improve the capacity of the purchasing power of the German market as one of the traditional markets of the English sale. Secondly, the strengthening of the position of the German cabinet meant failure of the French policy in Europe at this stage. The defeat of France in a dispute on the issue of early evacuation of the Rhineland would seriously devalue the foreign policy initiatives of Paris. Thirdly, the British government hoped that Germany will go into orbit of British political influence. The identity of the positions of the German and the British cabinets were considered as the components of British policy success not only in relations with France and Italy, but also with Czechoslovakia and Poland. Since the formation of the MacDonald’s cabinet, anti-Polish moods increased in the British course for the settlement of German-Polish relations. However, the threat of an attack on Poland by Germany was regarded by the government of Britain as unacceptable way of resolving the German-Polish conflict. Britain tried to follow the traditional foreign policy concept of “balance of power”, but the inefficiency of British policy “mediation” in European affairs was clearly shown in times of growing financial and economic crisis. The issue of the German-Polish border remained unsolved.

  2. Plantar loading changes with alterations in foot strike patterns during a single session in habitual rear foot strike female runners.

    Science.gov (United States)

    Kernozek, Thomas W; Vannatta, Charles N; Gheidi, Naghmeh; Kraus, Sydnie; Aminaka, Naoko

    2016-03-01

    Characterize plantar loading parameters when habitually rear foot strike (RFS) runners change their pattern to a non-rear foot strike (NRFS). Experimental. University biomechanics laboratory. Twenty three healthy female runners (Age: 22.17 ± 1.64 yrs; Height: 168.91 ± 5.46 cm; Mass: 64.29 ± 7.11 kg). Plantar loading was measured using an in-sole pressure sensor while running down a 20-m runway restricted to a range of 3.52-3.89 m/s under two conditions, using the runner's typical RFS, and an adapted NRFS pattern. Repeated measures multivariate analysis of variance was performed to detect differences in loading between these two conditions. Force and pressure variables were greater in the forefoot and phalanx in NRFS and greater in the heel and mid foot in RFS pattern, but the total force imposed upon the whole foot and contact time remained similar between conditions. Total peak pressure was higher and contact area was lower during NRFS running. The primary finding of this investigation is that there are distinctly different plantar loads when changing from a RFS to NRFS during running. So, during a transition from RFS to a NRFS pattern; a period of acclimation should be considered to allow for adaptations to these novel loads incurred on plantar regions of the foot. Copyright © 2015 Elsevier Ltd. All rights reserved.

  3. Symmetry or asymmetry? Cross-border openness of service providers in Polish-Czech and Polish-German border towns

    Directory of Open Access Journals (Sweden)

    Dołzbłasz Sylwia

    2015-03-01

    Full Text Available The symmetry and/or asymmetry in terms of cross-border openness of service providers is examined in this article, for the cases of two border twin towns: Cieszyn/Český Těšín at the Polish-Czech border, and Gubin/Guben at the Polish-German border. To assess the level of openness of firms towards clients from the other side of the border, four trans-border categories were examined: neighbour’s language visible at store location; business offers in the language of the neighbour; the possibilities of payment in the neighbour’s currency; and the staff’s knowledge of the language. This enabled a comparison of both parts of the particular twin towns in relation to the character of cross-border openness, as well as an assessment of their symmetry/asymmetry. Comparisons of Gubin/Guben and Cieszyn/Český Těšín with respect to the analysed features were also carried out. The analysis shows significant variation in the level of cross-border openness towards clients from neighbouring countries. Whereas in the Polish-Czech town a relative symmetry was observed, in the Polish-German case, significant asymmetry was noted.

  4. Pseudo-random tool paths for CNC sub-aperture polishing and other applications.

    Science.gov (United States)

    Dunn, Christina R; Walker, David D

    2008-11-10

    In this paper we first contrast classical and CNC polishing techniques in regard to the repetitiveness of the machine motions. We then present a pseudo-random tool path for use with CNC sub-aperture polishing techniques and report polishing results from equivalent random and raster tool-paths. The random tool-path used - the unicursal random tool-path - employs a random seed to generate a pattern which never crosses itself. Because of this property, this tool-path is directly compatible with dwell time maps for corrective polishing. The tool-path can be used to polish any continuous area of any boundary shape, including surfaces with interior perforations.

  5. Magma storage in a strike-slip caldera.

    Science.gov (United States)

    Saxby, J; Gottsmann, J; Cashman, K; Gutiérrez, E

    2016-07-22

    Silicic calderas form during explosive volcanic eruptions when magma withdrawal triggers collapse along bounding faults. The nature of specific interactions between magmatism and tectonism in caldera-forming systems is, however, unclear. Regional stress patterns may control the location and geometry of magma reservoirs, which in turn may control the spatial and temporal development of faults. Here we provide new insight into strike-slip volcano-tectonic relations by analysing Bouguer gravity data from Ilopango caldera, El Salvador, which has a long history of catastrophic explosive eruptions. The observed low gravity beneath the caldera is aligned along the principal horizontal stress orientations of the El Salvador Fault Zone. Data inversion shows that the causative low-density structure extends to ca. 6 km depth, which we interpret as a shallow plumbing system comprising a fractured hydrothermal reservoir overlying a magmatic reservoir with vol% exsolved vapour. Fault-controlled localization of magma constrains potential vent locations for future eruptions.

  6. Striking an interim balance of the ongoing climate debate

    International Nuclear Information System (INIS)

    Schoenwiese, C.D.

    1995-01-01

    After the Berlin UN conference of the signatory states to the Climate Change Convention it seems appropriate to strike an interim balance of the ongoing debate about the global climate change, as it has meanwhile evolved from an issue discussed among experts to an issue of public debate. Such a ''progress report'' seems to be opportune also because doubts are mounting in the face of proclaimed countermeasures. The article therefore reviews and summarizes facts and figures, discussing emissions and concentrations, the physical properties of greenhouse gases, as well as uncertainties of model calculations and of interpretations of measured data. The current situation calls for application of alternative models and concepts, and consideration of natural processes in competition with man-made impacts on the climate within the framework of optimized interpretation, in order to have probabilistic data at hand for decision-making. (orig.) [de

  7. Migraine strikes as neuronal excitability reaches a tipping point.

    Directory of Open Access Journals (Sweden)

    Marten Scheffer

    Full Text Available Self-propagating waves of cerebral neuronal firing, known as spreading depolarisations, are believed to be at the roots of migraine attacks. We propose that the start of spreading depolarisations corresponds to a critical transition that occurs when dynamic brain networks approach a tipping point. We show that this hypothesis is consistent with current pathogenetic insights and observed dynamics. Our view implies that migraine strikes when modulating factors further raise the neuronal excitability in genetically predisposed subjects to a level where even minor perturbations can trigger spreading depolarisations. A corollary is that recently discovered generic early warning indicators for critical transitions may be used to predict the onset of migraine attacks even before patients are clinically aware. This opens up new avenues for dissecting the mechanisms for the onset of migraine attacks and for identifying novel prophylactic treatment targets for the prevention of attacks.

  8. A Probabilistic, Facility-Centric Approach to Lightning Strike Location

    Science.gov (United States)

    Huddleston, Lisa L.; Roeder, William p.; Merceret, Francis J.

    2012-01-01

    A new probabilistic facility-centric approach to lightning strike location has been developed. This process uses the bivariate Gaussian distribution of probability density provided by the current lightning location error ellipse for the most likely location of a lightning stroke and integrates it to determine the probability that the stroke is inside any specified radius of any location, even if that location is not centered on or even with the location error ellipse. This technique is adapted from a method of calculating the probability of debris collisionith spacecraft. Such a technique is important in spaceport processing activities because it allows engineers to quantify the risk of induced current damage to critical electronics due to nearby lightning strokes. This technique was tested extensively and is now in use by space launch organizations at Kennedy Space Center and Cape Canaveral Air Force Station. Future applications could include forensic meteorology.

  9. Foot-strike haemolysis in an ultramarathon runner.

    Science.gov (United States)

    Fazal, Abid A; Whittemore, Mary S; DeGeorge, Katharine C

    2017-12-13

    This case report describes mild anaemia and intravascular haemolysis in an otherwise healthy 41-year-old ultramarathon runner. In long-distance endurance athletes, trace gastrointestinal bleeding and plasma volume expansion are recognised sources of mild anaemia, often found incidentally. However, repetitive forceful foot striking can lead to blood cell lysis in the feet, resulting in a mild macrocytic anaemia and intravascular haemolysis, as was demonstrated in the patient described herein. Mild anaemia in runners, often called 'runner's pseudoanaemia', is typically clinically insignificant and does not require intervention. However, an unexplained anaemia can cause undue worry for otherwise healthy patients and lead to costly further testing, providing an argument against routine testing with complete blood counts in healthy, asymptomatic patients. © BMJ Publishing Group Ltd (unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  10. Precision Strike Training in Lean Manufacturing: A Workplace Literacy Guidebook [and] Final Report on Precision Strike Workplace Literacy Training at CertainTeed Corporation.

    Science.gov (United States)

    National Alliance of Business, Inc., Washington, DC.

    CertainTeed's Precision Strike training program was designed to close the gaps between the current status of its workplace and where that work force needed to be to compete successfully in global markets. Precision Strike included Skills and Knowledge in Lifelong Learning (SKILL) customized, computerized lessons in basic skills, one-on-one…

  11. When strike comes to town... anticipated and actual behavioural reactions to a one-day, pre-announced, complete rail strike in the Netherlands

    NARCIS (Netherlands)

    Rietveld, P.; Exel, N.J.A.

    2009-01-01

    We conducted secondary analysis on data collected among rail users, days before and after a national rail strike in the Netherlands. Our aim was to compare anticipated and actual behavioural reactions to the rail strike, investigate associations with traveller and trip characteristics, and perceived

  12. Lightning Strike Induced Damage Mechanisms of Carbon Fiber Composites

    Science.gov (United States)

    Kawakami, Hirohide

    Composite materials have a wide application in aerospace, automotive, and other transportation industries, because of the superior structural and weight performances. Since carbon fiber reinforced polymer composites possess a much lower electrical conductivity as compared to traditional metallic materials utilized for aircraft structures, serious concern about damage resistance/tolerance against lightning has been rising. Main task of this study is to clarify the lightning damage mechanism of carbon fiber reinforced epoxy polymer composites to help further development of lightning strike protection. The research on lightning damage to carbon fiber reinforced polymer composites is quite challenging, and there has been little study available until now. In order to tackle this issue, building block approach was employed. The research was started with the development of supporting technologies such as a current impulse generator to simulate a lightning strike in a laboratory. Then, fundamental electrical properties and fracture behavior of CFRPs exposed to high and low level current impulse were investigated using simple coupon specimens, followed by extensive parametric investigations in terms of different prepreg materials frequently used in aerospace industry, various stacking sequences, different lightning intensity, and lightning current waveforms. It revealed that the thermal resistance capability of polymer matrix was one of the most influential parameters on lightning damage resistance of CFRPs. Based on the experimental findings, the semi-empirical analysis model for predicting the extent of lightning damage was established. The model was fitted through experimental data to determine empirical parameters and, then, showed a good capability to provide reliable predictions for other test conditions and materials. Finally, structural element level lightning tests were performed to explore more practical situations. Specifically, filled-hole CFRP plates and patch

  13. 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.

  14. Cancer prevention awareness among young adult Polish females on the basis of the assessment of knowledge and health behaviours

    Directory of Open Access Journals (Sweden)

    Grażyna R. Wiraszka

    2016-07-01

    Full Text Available Introduction: The accelerating rate of incidence of malignant cancers in Polish women as compared to men and the higher mortality due to these diseases as compared to other regions in Europe is an important medical and social problem. Aim of the research : To attempt an assessment of cancer prevention awareness among young adult Polish females on the basis of the analysis of their knowledge as well as of the prevalence of negative health behaviours. Material and methods : The study was conducted in 270 young Polish females: students of nursing and pedagogy. The study was conducted using a proprietary questionnaire, the Inventory of Health Behaviour, the Fagerström Test for Nicotine Dependence, and Nina Schenider’s Motivation for Quitting Smoking Test. Results : The highest percentages of negative behaviours included low intake of fruit and vegetables (76.3%, whole-grain products (78.9%, and fish (93.3%, as well as tanning (56.7% and smoking (37% and health check behaviours (breast self-exams 60.7%, cervical cytological screening 36%. Conclusions: Despite the relatively high level of knowledge, cancer risk-related lifestyles and behaviours unfavourable for the possibility of early diagnosis were observed among the subjects. The less favourable model of cognitive and behavioural competence in health and cancer prevention was observed at bachelor-level students of pedagogy at the ages below 24 years. Development of skills and motivation for pro-health behaviours and the awareness of behaviour models presented by educators are, along with appropriate knowledge, the most desirable strategies for the success of health education in the area of cancer prevention.

  15. Strain-free polished channel-cut crystal monochromators: a new approach and results

    Science.gov (United States)

    Kasman, Elina; Montgomery, Jonathan; Huang, XianRong; Lerch, Jason; Assoufid, Lahsen

    2017-08-01

    The use of channel-cut crystal monochromators has been traditionally limited to applications that can tolerate the rough surface quality from wet etching without polishing. We have previously presented and discussed the motivation for producing channel cut crystals with strain-free polished surfaces [1]. Afterwards, we have undertaken an effort to design and implement an automated machine for polishing channel-cut crystals. The initial effort led to inefficient results. Since then, we conceptualized, designed, and implemented a new version of the channel-cut polishing machine, now called C-CHiRP (Channel-Cut High Resolution Polisher), also known as CCPM V2.0. The new machine design no longer utilizes Figure-8 motion that mimics manual polishing. Instead, the polishing is achieved by a combination of rotary and linear functions of two coordinated motion systems. Here we present the new design of C-CHiRP, its capabilities and features. Multiple channel-cut crystals polished using the C-CHiRP have been deployed into several beamlines at the Advanced Photon Source (APS). We present the measurements of surface finish, flatness, as well as topography results obtained at 1-BM of APS, as compared with results typically achieved when polishing flat-surface monochromator crystals using conventional polishing processes. Limitations of the current machine design, capabilities and considerations for strain-free polishing of highly complex crystals are also discussed, together with an outlook for future developments and improvements.

  16. [Futile medical care and euthanasia in the opinion of professional nurses].

    Science.gov (United States)

    Renn-Zurek, Agnieszka

    2014-03-01

    Futile medical care and euthanasia are hard to assess unequivocally and are becoming a frequent topic of social discussion. The problem requires both ethical and moral consideration as well as legal regulations. As a medical issue it has got both its supporters and opponents. The aim of the study was to evaluate of nurses' attitudes and knowledge concerning euthanasia and persistend therapy. The survey group included 183 nurses aged 30-58. The diagnostic method poll was applied, the technique used was a questionnaire. Among the nurses participating in the survey, 83% is against providing futile medical care when it is known that it will not bring any effect, while increasing the suffering and prolonging dying. 45% of the respondents consider euthanasia unacceptable, 41% think that euthanasia could be performed in cases in which patient's suffering cannot be relieved. 49% of the surveyed think that euthanasia should remain strictly prohibited by the Polish law, while 31% think that Polish legal system should legalize euthanasia. The nurses are aware that futile medical care for terminally ill and dying patients does not lead to successful treatment but instead it prolongs dying and suffering, at the same time resulting in extremely high financial costs. In most cases they are advocates of its discontinuing. The surveyed nurses differ in their approach towards euthanasia, some of them supporting the idea, the other--opposing it. Most of them express the opinion that euthanasia should be forbidden in the Polish law and their personal approach towards euthanasia is negative.

  17. Influence of polishing on surface roughness following toothbrushing wear of composite resins.

    Science.gov (United States)

    Dalla-Vecchia, Karine Battestin; Taborda, Talita Damas; Stona, Deborah; Pressi, Heloísa; Burnett Júnior, Luiz Henrique; Rodrigues-Junior, Sinval Adalberto

    2017-01-01

    This study aimed to evaluate the influence of different polishing systems on the surface roughness of composite resins following procedures to simulate the effects of toothbrushing over time. Four currently available commercial composites were used to make 128 cylindrical specimens. The specimens were randomly allocated to polishing with a 1-step polisher or 1 of 3 multistep polishers (n = 8 per group). The baseline surface roughness was measured, and the specimens were submitted to 5000, 10,000, and 20,000 brushing cycles to represent toothbrushing throughout 6, 12, and 24 months, respectively. Results showed that surface roughness was influenced by the type of composite and polishing system and was not influenced by the simulated toothbrushing time. However, the surface roughness, as challenged by toothbrushing wear, was affected by the interaction among the composite, the polisher, and the toothbrushing time. The 1-step polisher produced the highest surface roughness and influenced toothbrushing wear resistance of some composites.

  18. THE EFFECTS OF HEIGHT AND DISTANCE ON THE FORCE PRODUCTION AND ACCELERATION IN MARTIAL ARTS STRIKES

    Directory of Open Access Journals (Sweden)

    Cynthia A. Bir

    2009-11-01

    Full Text Available Almost all cultures have roots in some sort of self defence system and yet there is relatively little research in this area, outside of a sports related environment. This project investigated different applications of strikes from Kung Fu practitioners that have not been addressed before in the literature. Punch and palm strikes were directly compared from different heights and distances, with the use of a load cell, accelerometers, and high speed video. The data indicated that the arm accelerations of both strikes were similar, although the force and resulting acceleration of the target were significantly greater for the palm strikes. Additionally, the relative height at which the strike was delivered was also investigated. The overall conclusion is that the palm strike is a more effective strike for transferring force to an object. It can also be concluded that an attack to the chest would be ideal for maximizing impact force and moving an opponent off balance

  19. Polish media and public opinion on NPP Mochovce commissioning

    International Nuclear Information System (INIS)

    Latek, Stanislaw

    1999-01-01

    The so called 'Mochovce Problem' was one of the major topics in Polish media in the period from May to July 1998. The nuclear power plant commissioning caused an unexpectedly strong reaction, especially in the newspapers, slightly less so in electronic media. Faced with clearly hostile media reaction to Mochovce NPP, the National Atomic Energy Agency representatives, together with atomic and nuclear experts, undertook to change these attitudes. In numerous interviews, letters to the editors and talks with journalists, they attempted to correct the mistakes, explain the true safety situation in the nuclear power plant, by whom it was constructed, who supervised and tested the systems and so on. The completion of Mochovce NPP construction improved significantly the electricity balance in Slovakia, thus decreasing the pressure for continuing the operation of older Bohunice V1 units beyond their design lifetime. For this reason, as well as in view of striving for improvement in environmental factors beyond Polish southern border, especially after Kyoto/97 decisions on greenhouse gases emissions, the public opinion in Poland should support the Mochovce NPP construction. In 1996 Poland has signed with Slovakia a bilateral inter-governmental agreement on the prompt notification on nuclear accidents and on the cooperation in the nuclear safety and radiological protection matters. On the basis of this agreement the experts from Polish National Atomic Energy Agency are in perpetual contact with Slovakian Nuclear Regulatory Body and in each and every moment can obtain full and comprehensive information on the plant parameters iportant for nuclear safety. The experts explanations, together with the NAEA top management visit to the plant itself, brought some results. The media became less aggressive, and Polish public and authorities - contrary to the Austrians - do not protest loudly against the commissioning of this newest European NPP. Now, in December 1998, the tune of

  20. 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.

  1. The Relationship Between Burnout Syndrome Among the Medical Staff and Work Conditions in the Polish Healthcare System.

    Science.gov (United States)

    Głębocka, Alicja

    2017-01-01

    Psychologists emphasize that people employed in social service organizations are vulnerable to chronic stress and burnout syndrome caused by a close and unsatisfied interpersonal relationship. However, emotional exhaustion, depersonalization, and a feeling of diminished personal accomplishment can be attributed to other external factors. One of them is poor living and occupational conditions. According to a report by OECD, the healthcare system in Poland is the worst among the member countries. The aim of the present study was to define the relationship between occupational burnout and the rating of the Polish healthcare system among the medical staff. The study included 224 participants. The Maslach Burnout Inventory and the Dehumanized Behavior and the Głębocka and Rużyczka scale of Behavioral Indicators of Patient's Dehumanization were applied. The evaluations of the healthcare system were also collected. The results demonstrate that physicians were the group of most emotionally exhausted and, simultaneously, most life-satisfied persons, while nurses presented the highest level of dehumanization and the lowest level of satisfaction from life achievements. Only did physicians evaluate the healthcare system as a relatively good one. They were also more tolerant of latent dehumanization. A relationship between the dimensions of burnout and the evaluation of healthcare system were observed. The emotionally exhausted or prone to dehumanization persons were more likely to evaluate the Polish healthcare system negatively.

  2. Natural immunity factors in Polish mixed breed rabbits.

    Science.gov (United States)

    Tokarz-Deptuła, B; Niedźwiedzka-Rystwej, P; Adamiak, M; Hukowska-Szematowicz, B; Trzeciak-Ryczek, A; Deptuła, W

    2015-01-01

    Mixed-breed rabbits in Poland are widely used for diagnostic and scientific research and as utility animals, therefore there is a need to know their immunological status, as well as their haematological status. In this study natural immunity factors were analyzed in Polish mixed-breed rabbits and Polish mixed-breed rabbits with addition of blood of meet-breed, considering the impact of sex and season of the year (spring, summer, autumn, winter) using measurement of non-specific cellular and humoral immunity parameters in peripheral blood. The study has revealed that there is a variety between the two commonly used mixed-breed types of rabbits, especially when sex and season is concerned, which is crucial for using these animals in experiments.

  3. Impact of polishing on the light scattering at aerogel surface

    International Nuclear Information System (INIS)

    Barnyakov, A.Yu.; Barnyakov, M.Yu.; Bobrovnikov, V.S.; Buzykaev, A.R.; Danilyuk, A.F.; Katcin, A.A.; Kononov, S.A.; Kirilenko, P.S.; Kravchenko, E.A.; Kuyanov, I.A.; Onuchin, A.P.; Ovtin, I.V.; Predein, A.Yu.; Protsenko, R.S.

    2016-01-01

    Particle identification power of modern aerogel RICH detectors strongly depends on optical quality of radiators. It was shown that wavelength dependence of aerogel tile transparency after polishing cannot be described by the standard Hunt formula. The Hunt formula has been modified to describe scattering in a thin layer of silica dust on the surface of aerogel tile. Several procedures of polishing of aerogel tile have been tested. The best result has been achieved while using natural silk tissue. The resulting block has optical smooth surfaces. The measured decrease of aerogel transparency due to surface scattering is about few percent. This result could be used for production of radiators for the Focusing Aerogel RICH detectors.

  4. Problems in laser repair welding of polished surfaces

    Directory of Open Access Journals (Sweden)

    A. Skumavc

    2014-10-01

    Full Text Available This paper presents problems in laser repair welding of the tools for injection moulding of plastics and light metals. Tools for injection moulding of the car headlamps are highly polished in order to get a desirable quality of the injected part. Different light metals, glasses, elastomers, thermoplastics and thermosetting polymers are injected into the die cavity under high pressures resulting in the surface damages of the tool. Laser welding is the only suitable repair welding technique due to the very limited sputtering during deposition of the filler metal. Overlapping of the welds results in inhomogeneous hardness of the remanufactured surface. Results have shown strong correlation between hardness and surface waviness after final polishing of the repair welded surface.

  5. E-TOURISM SERVICES IN POLISH TOURISTS' OPINIONS

    Directory of Open Access Journals (Sweden)

    Joanna Papińska-Kacperek

    2013-07-01

    Full Text Available E-tourism is most often related only with web pages of travel agencies or aggregators offering many services, where it is possible to make transactions electronically. Whereas many applications and devices are applied in tourism, like the audio guides and mobile guides (sometimes with augmented reality functions, electronic cards in museums, 2D codes systems, web pages for individual tourists, geographic information systems (e.g. Google Street View, social network sites recommendation, and profiles of cities on social networks sites like Facebook. Polish tourists' opinions about mentioned innovative tools will be presented as the report from the survey conducted among students and graduates from three Polish universities. The objectives of the study are: investigating the popularity of e-tourist services in Poland and verifying whether municipal authorities promote e-tourism initiatives.

  6. Legal aspects of Polish Tax and Social Security in Agriculture

    Directory of Open Access Journals (Sweden)

    Agnieszka Parlińska

    2008-12-01

    Full Text Available In the paper are describing legal aspects of treatment of farming sector in the tax and social security system in Poland. Tax System in Polish Agriculture is an integral part of Polish Tax System. Most taxes paid by farmers are property taxes, which supplied the budget of main local authority in Poland (municipality. In some cases farmers pay also personal income tax and value added tax like those, who run specific agricultural production as well individual farmers who operate through a limited liability company are subject to corporate income tax. The social security fund for farmers (known as KRUS was speared in 1990 from the social security system (ZUS. Farmers receive similar benefits with regard to health care, education, and social welfare although the contributions into the farmers system are lower then under the ZUS system.

  7. Edge effect modeling of small tool polishing in planetary movement

    Science.gov (United States)

    Li, Qi-xin; Ma, Zhen; Jiang, Bo; Yao, Yong-sheng

    2018-03-01

    As one of the most challenging problems in Computer Controlled Optical Surfacing (CCOS), the edge effect greatly affects the polishing accuracy and efficiency. CCOS rely on stable tool influence function (TIF), however, at the edge of the mirror surface,with the grinding head out of the mirror ,the contact area and pressure distribution changes, which resulting in a non-linear change of TIF, and leads to tilting or sagging at the edge of the mirror. In order reduce the adverse effects and improve the polishing accuracy and efficiency. In this paper, we used the finite element simulation to analyze the pressure distribution at the mirror edge and combined with the improved traditional method to establish a new model. The new method fully considered the non-uniformity of pressure distribution. After modeling the TIFs in different locations, the description and prediction of the edge effects are realized, which has a positive significance on the control and suppression of edge effects

  8. Africa and Its People in the Polish Media

    Directory of Open Access Journals (Sweden)

    Średziński Paweł

    2017-06-01

    Full Text Available The African continent is treated by the Polish media marginally and usually seen through the lens of four domains of stereotypical perceptions that are associated with difficult life conditions, threats and dangers, beautiful and wild nature, as well as original and diverse cultures. Monitoring of the Polish media has become very important in this situation. That is why the results of first media monitoring report were published in 2011 by ‘Africa Another Way’ Foundation. Five years later the monitoring was repeated. It is hard to resist the impression that Africa is still viewed as this poor, underdeveloped and dangerous continent. And the way it is presented translates into the way individuals of African descent are perceived.

  9. Restaurants and hotels expenditure in Polish households of the elderly

    Directory of Open Access Journals (Sweden)

    Piekut Marlena

    2016-03-01

    Full Text Available The age of household members is an important factor for expenditures. The aim of the study is to investigate the level of expenditure on restaurants and hotels incurred in Polish households of the elderly in 2004-2013 and to identify the factors affecting such expenditures. The source of information used in the study was the household budget survey of the Central Statistical Office of Poland. The main methods used in this study were variance analysis and regression analysis. Restaurants and hotels expenditure increases every year together with their share in total household expenditure. The most important factors affecting the restaurants and hotels spending in Polish households of the elderly are: income per capita and the level of education of the head of the family. The study on consumption determinants at different groups leads to better understanding of consumer behavior circumstances and thereby ensuring a good quality of life for the people of the elderly.

  10. A new strategy for the restructuring of Polish energy sector

    International Nuclear Information System (INIS)

    Kozlowski, R.H.; Tallat, J.

    2006-01-01

    In accordance with strategic planning in the military, the leader (in this case the Minister of Economy) is responsible for setting goals, finding the right people to accomplish these goals (those working in the energy sector), analysing the current situation (state of the energy sector) and evaluating available resources (conventional and renewable energy resources). In terms of economic planning (this term is proper for an economy that sets numerous laws and quotas), the goal is to get the Polish economy out of economic slump, which is the result of seventeen years of improper government practices, into a state of prosperity corresponding to no less than the European average. The only way of accomplishing this goal of high economic growth and catching up with highly-developed countries is to develop local inexpensive energy resources. This study focuses on the potential to develop abundant Polish geothermal resources as well as natural gas based co-generation. (author)

  11. San Andreas-sized Strike-slip Fault on Europa

    Science.gov (United States)

    1998-01-01

    This mosaic of the south polar region of Jupiter's moon Europa shows the northern 290 kilometers (180 miles) of a strike-slip fault named Astypalaea Linea. The entire fault is about 810 kilometers (500 miles) long, about the size of the California portion of the San Andreas fault, which runs from the California-Mexico border north to the San Francisco Bay. In a strike-slip fault, two crustal blocks move horizontally past one another, similar to two opposing lanes of traffic. Overall motion along the fault seems to have followed a continuous narrow crack along the feature's entire length, with a path resembling steps on a staircase crossing zones that have been pulled apart. The images show that about 50 kilometers (30 miles) of displacement have taken place along the fault. The fault's opposite sides can be reconstructed like a puzzle, matching the shape of the sides and older, individual cracks and ridges broken by its movements. [figure removed for brevity, see original site] The red line marks the once active central crack of the fault. The black line outlines the fault zone, including material accumulated in the regions which have been pulled apart. Bends in the fault have allowed the surface to be pulled apart. This process created openings through which warmer, softer ice from below Europa's brittle ice shell surface, or frozen water from a possible subsurface ocean, could reach the surface. This upwelling of material formed large areas of new ice within the boundaries of the original fault. A similar pulling-apart phenomenon can be observed in the geological trough surrounding California's Salton Sea, in Death Valley and the Dead Sea. In those cases, the pulled-apart regions can include upwelled materials, but may be filled mostly by sedimentary and eroded material from above. One theory is that fault motion on Europa is induced by the pull of variable daily tides generated by Jupiter's gravitational tug on Europa. Tidal tension opens the fault and

  12. Wildfire Activity Across the Triassic-Jurassic Boundary in the Polish Basin: Evidence from New Fossil Charcoal & Carbon-isotope Data

    Science.gov (United States)

    Pointer, R.; Belcher, C.; Hesselbo, S. P.; Hodbod, M.; Pieńkowski, G.

    2017-12-01

    New fossil charcoal abundance and carbon-isotope data from two sedimentary cores provide new evidence of extreme environmental conditions in the Polish Basin during the Latest Triassic to Earliest Jurassic. Sedimentary cores from the Polish Basin provide an excellent record of terrestrial environmental conditions across the Triassic-Jurassic Boundary, a time of climatic extremes. Previous work has shown that the marine realm was affected by a large perturbation to the carbon cycle across the Triassic-Jurassic Boundary (manifested by large negative and positive carbon-isotope excursions) and limited records of charcoal abundance and organic geochemistry have indicated important changes in fire regime in the coeval ecosystems. Here we present two new carbon-isotope records generated from fossil plant matter across the Triassic-Jurassic boundary, and present new charcoal records. The charcoal abundance data confirm that there was variation in wildfire activity during the Late Triassic-Early Jurassic in the Polish Basin. Peaks in the number of fossil charcoal fragments present occur in both sedimentary cores, and increases in fossil charcoal abundance are linked to wildfires, signalling a short-lived rise in wildfire activity. Fossil charcoal abundance does not appear to be fully controlled by total organic matter content, depositional environment or bioturbation. We argue that increased wildfire activity is likely caused by an increase in ignition of plant material as a result of an elevated number of lightning strikes. Global warming (caused by a massive input of carbon into the atmosphere, as indicated by carbon-isotope data) can increase storm activity, leading to increased numbers of lightning strikes. Previous Triassic-Jurassic Boundary wildfire studies have found fossil charcoal abundance peaks at other northern hemisphere sites (Denmark & Greenland), and concluded that they represent increases in wildfire activity in the earliest Jurassic. Our new charcoal and

  13. 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)

  14. 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)

  15. Macroeconomic Reasons of Debts in Polish Health Service

    Directory of Open Access Journals (Sweden)

    Kamila Szymańska

    2008-04-01

    Full Text Available The article deals with the problem of debts in polish health service. Author analyzes the macroeconomic reasons of this situation. As a main reasons are indicated: a specificity of the health service market, which leads to a inefficient allocation of health services, lack of reliable data on health care system, too low level of public expenditure on a health care, inappropriate allocation of public capital and a monopolistic position of the payer.

  16. Ion beam polishing for three-dimensional electron backscattered diffraction

    DEFF Research Database (Denmark)

    Saowadee, Nath; Agersted, Karsten; Ubhi, H.S.

    2013-01-01

    averaging and/or poor 3D-EBSD data quality. In this work a low kV focused ion beam was successfully implemented to automatically polish surfaces during 3D-EBSD of La- and Nb-doped strontium titanate of volume 12.6 × 12.6 × 3.0 μm. The key to achieving this technique is the combination of a defocused low k...

  17. Polish epistolography in Ukrainian polemic of the 17th century

    Directory of Open Access Journals (Sweden)

    Sukhareva Svitlana Volodymyrivna

    2013-06-01

    Full Text Available The block of Polish epistolary in the system of polemical prose of the 17th century is analyzed in the article. It's indicated in its genre features, holistic character, publicistic and artistic level. Special attention is paid to the epistolary style of Hypatij Potij, Andrew Muzhylovski and Klyryk from Ostrog. Innovative and classical elements of epistolary heritage of the Baroque epoch are identified.

  18. Sports metaphors in Polish written commentaries on politics

    OpenAIRE

    Jarosław Wiliński

    2015-01-01

    This paper seeks to investigate what sports metaphors are used in Polish written commentaries on politics and what special purpose they serve. In particular, the paper examines structural metaphors that come from the lexicon of popular sports, such as boxing, racing, track and field athletics, sailing, etc. The language data, derived from English Internet websites, has been grouped and discussed according to source domains. Applying George Lakoff and Mark Johnson’s approach to metaphor, the p...

  19. [Polish forensic entomology--the past, present and future perspectives].

    Science.gov (United States)

    Skowronek, Rafał; Chowaniec, Czesław

    2010-01-01

    Forensic medicine increasingly more often benefits from the achievements of other biological sciences, which may be used in post mortem investigation. One of them is forensic entomology--the science based on the knowledge about biology of insects preying on cadavers. The objective of this article is to present the history of Polish forensic entomology, its present state and possibilities and directions of further development.

  20. Mutual Fund Performances of Polish Domestic Equity Fund Managers

    OpenAIRE

    Tan, Ömer Faruk; Ünal, Gözde

    2015-01-01

    Purpose of the article: The main purpose of the paper is empirically evaluating selectivity skills and market timing ability of Polish fund managers during the period from January 2009 to November 2014. After the global financial crisis of 2008, in this period of quantitative easing (QE), thanks to an increase in the money supply, a capital flow from developed countries to developing countries was observed. In this study, we try to analyse that although the financial market in Pol...

  1. Consolidation Processes: Raiders & Targets in Polish Financial Institutions

    OpenAIRE

    Poteraj, Jarosław

    2004-01-01

    The work consists of five chapters, an annex and an appendix. In the first chapter the author describes the point of consolidation processes, presents: the meaning of consolidation processes, active and institutional aspects of merger execution, gives a classification of the consolidation processes and considers conditions of execution of consolidations processes in the Polish law, The next chapter concerns reasons of consolidation processes. The author describes there in turn: motives of the...

  2. Mutual Fund Performances of Polish Domestic Equity Fund Managers

    Directory of Open Access Journals (Sweden)

    ömer faruk tan

    2015-10-01

    Full Text Available Purpose of the article: The main purpose of the paper is empirically evaluating selectivity skills and market timing ability of Polish fund managers during the period from January 2009 to November 2014. After the global financial crisis of 2008, in this period of quantitative easing (QE, thanks to an increase in the money supply, a capital flow from developed countries to developing countries was observed. In this study, we try to analyse that although the financial market in Poland made an incredible progress, whether fund managers show better or worse performance than the market. Methodology/Methods: In order to evaluate fund manager performances, Jensen alpha (1968 is computed, which depicts selectivity skills of fund managers. For determining market timing ability of fund managers, Treynor & Mazuy (1966 regression analysis and Henriksson & Merton (1981 regression analysis are applied. Fund performances are evaluated using Warsaw Stock Exchange Index as the benchmark index. Scientific aim: In this study, we have tried to evaluate selectivity skills and market timing ability of Polish fund managers. A total of 14 equity fund managers’ performances are analysed. The study can be guiding especially for investors who are interested in Polish equity fund performances in a period where emerging stock markets outperformed with quantitative easing. Findings: Jensen (1968 alphas indicate that over this period fund managers did not have selective ability, as none of the 14 funds had statistically significant positive alphas. Furthermore, Treynor & Mazuy (1966 and Henriksson & Merton (1981 regression analysis indicate that over the same period fund managers did not also have market timing ability, as again none of the 14 funds had statistically significant positive coefficients. Conclusions: In this work, we can detect that in the era of quantitative easing, although the financial market in Poland made an incredible progress, the fund returns were

  3. Fracking in the Polish press: Geopolitics and national identity

    International Nuclear Information System (INIS)

    Jaspal, Rusi; Nerlich, Brigitte; Lemańcyzk, Szczepan

    2014-01-01

    In a context of resource scarcity and political instability, new energy sources and technologies are being explored in many parts of the world and exploited in some. One of these new energy sources is shale gas and one of the countries seeking to decrease its energy dependence and increase its energy security is Poland which is largely dependent on gas and oil imports from Russia. This article presents the results of a thematic content analysis of articles reporting on shale gas/fracking published in Gazeta Wyborcza and Rzeczpospolita, two leading Polish newspapers, from 1 January 2010 to 31 December 2012. Findings suggest that in media reporting the geopolitical dimension of fracking overrides the technological/scientific dimension and that representations are overwhelmingly positive. Positive representations are bolstered through particular linguistic framings. It is argued that the Polish press has polarized the debate on fracking in a particular (positive) direction, which has silenced an open and constructive debate concerning energy policy in Poland and constructed criticism of fracking as counter-normative and “un-Polish.” The potential socio-political and policy implications of these media representations are discussed. - Highlights: • The general tone of Polish media reporting is positive and emphatic about the benefits of fracking. • The geopolitical dimension of fracking overrides the technological/scientific dimension. • The implementation of fracking is constructed as a national priority. • Opposition to fracking is constructed as counter-normative and “anti-Polish”. • Representations impede open and constructive dialogue about energy policy

  4. Cogeneration – development and prospect in Polish energy sector

    Directory of Open Access Journals (Sweden)

    Matuszewska Dominika

    2017-01-01

    Full Text Available Next 10-15 years are crucial for condition of Polish energy sector in light of challenges arising mainly from increasing demand for electric energy, need of reducing greenhouse gases emissions and shutdowns of old units. In this situation cogeneration can be one of the most rational way to meet those circumstances. This paper analyzes present development of cogeneration in Poland and its prospect for future.

  5. Chemical etching and polishing of InP

    International Nuclear Information System (INIS)

    Kurth, E.; Reif, A.; Gottschalch, V.; Finster, J.; Butter, E.

    1988-01-01

    This paper describes possibilities of several chemical preparations for the selective cleaning of InP surfaces. The investigations of the surface states after the chemical treatment were carried out by means of XPS measurements. A pre-etching with (NH 4 ) 2 S 2 O 8 :H 2 SO 4 :H 2 O and a polishing with 1% bromine in methanol produce optically smooth (100)-and (111) P surfaces free of oxides. (author)

  6. Between Positivism, Narrativism and Idealisation in Polish Methodology of History

    OpenAIRE

    Brzechczyn, Krzysztof

    2014-01-01

    This paper has two main purposes. Its primary purpose is to present the reception of the discussion between positivism and narrativism in Polish methodology of history. A secondary one is to paraphrase, using the notion apparatus of the idealisational theory of science, the issue of the accuracy of explanation. The paper consists of six parts. In the first, Hempel’s deductive-nomological (or covering law) model of explanation is presented. In the second part, the main tenets and assumptions o...

  7. Effect of public transport strikes on air pollution levels in Barcelona (Spain).

    Science.gov (United States)

    Basagaña, Xavier; Triguero-Mas, Margarita; Agis, David; Pérez, Noemí; Reche, Cristina; Alastuey, Andrés; Querol, Xavier

    2018-01-01

    Public transport strikes can lead to an increase of the number of private vehicle trips, which in turn can increase air pollution levels. We aimed to estimate the change in air pollution concentrations during public transport strikes in the city of Barcelona (Spain). Data on strikes of the metro, train or bus systems were collected from government records (2005-2016). We collected daily concentrations of NOx; particulate matter with an aerodynamic diameter smaller than 10μm (PM10), 2.5μm (PM2.5), and 1μm (PM1); particle number concentration (N); black carbon (BC) and CO from research and official monitoring stations. We fitted linear regression models for each pollutant with the strike indicator as an independent variable, and models were adjusted for day of the week, month, year, and holiday periods. During the study period, there were 208days affected by a strike of the metro (28), train (106) or bus (91) systems. Half of the strikes were partial, most of them were single-day strikes, there was little overlap between strikes of the different transport systems, and all strikes had to comply with mandatory minimal services. When pooling all types of strikes, NOx and BC showed higher levels during strike days in comparison with non-strike days (increase between 4.1% and 7.7%, with higher increases for NO). The increases in these concentrations were more evident during full day and multiday metro strikes. In conclusion, alterations in public transport have consequences on air quality. This highlights the importance of public transport in reducing air pollution concentrations in cities. Copyright © 2017 Elsevier B.V. All rights reserved.

  8. Efficiency as a parameter for assessing the Polish healthcare system

    Directory of Open Access Journals (Sweden)

    Magdalena Bogdan

    2018-04-01

    Full Text Available Introduction. Efficacy is defined as one of the most valid parameters of health system evaluation. It should be said that there is no consistent definition of the concept of effectiveness in health care, which would allow for the evaluation and comparison of health systems in the world. One can not point to the best or even near ideal of the health system. However, you can rank individual health systems with respect to the evaluation of individual parameters or groups of parameters. One of the possibilities is to evaluate the effectiveness of the system. Aim of the study. The aim of the article is to define and analyze particular types of system effectiveness in the context of the Polish health system. Description of knowledge. The literature on the subject is divided into operational and dynamic efficiency. Dynamic efficiency is divided into adaptive and innovative. The Polish health system is characterized by high operational efficiency. Operational efficiency determines the intensity of the system. The key factor for improving the health of the Polish society, as a factor of socio-economic development of the country is to improve the dynamic efficiency of the system. Conclusions. Health care in Poland has high operational efficiency while low dynamic efficiency, both adaptive and innovative, which clearly demonstrates the existence of a paradox of the overall effectiveness of the health care system in Poland.

  9. The attractiveness of family medicine among Polish medical students.

    Science.gov (United States)

    Gowin, Ewelina; Horst-Sikorska, Wanda; Michalak, Michał; Avonts, Dirk; Buczkowski, Krzysztof; Lukas, Witold; Korman, Tomasz; Litwiejko, Alicja; Chlabicz, Sławomir

    2014-06-01

    In many developed countries tuning supply and demand of medical doctors is a continuous challenge to meet the ever changing needs of community and individual patients. The long study period for medical doctors creates the opportunity to observe the current career preferences of medical students and evolution in time. To investigate the career choices of Polish students in different stages of their medical education. Medical students at five Polish medical universities were questioned about their career aspirations in the first, third and sixth year. A total of 2020 students were recruited for the survey. Among first year students 17% preferred family medicine as final career option, compared to 20% in the third year, and 30% in the sixth year (significant trend, P family medicine: 71% women versus 62% women in the group with a preference for a non-family medicine orientation (P = 0.008). Medical students rejecting a career as a family doctor stated that the impossibility to work in a hospital environment was the determining factor. The opportunity for professional development seems to be an important determining factor in the choice of a medical specialty in Poland. The proportion of Polish students choosing family medicine increases during their progress in medical education, with one third of students interested in a career in family medicine by year six.

  10. Cleaning, abrasion, and polishing effect of novel perlite toothpaste abrasive.

    Science.gov (United States)

    Wang, Bo

    2013-01-01

    This study was intended to optimize perlite particle size and morphology for better tooth cleaning and lower tooth abrasion, and to evaluate the performance of a whitening toothpaste containing the optimized perlite abrasive for tooth cleaning, abrasion, and polishing. Perlite toothpaste abrasive samples were prepared by air classifying a commercial expanded perlite product. The tooth cleaning and abrasion properties for these classified perlite samples were reported via the pellicle cleaning ratio (PCR) and relative dentin abrasion (RDA). Performance of the whitening toothpaste containing the optimized perlite abrasive in tooth cleaning, polishing, and abrasion was evaluated against a widely used synthetic high-cleaning silica. Air classification removes large perlite particles and also physically changes perlite particle morphology from mostly three dimensional and angular particles to mainly two dimensional and platy particles. All the classified samples show good tooth cleaning effect, but tooth abrasion decreases significantly with decreasing particle size. Compared to high-cleaning silica whitening toothpaste, the whitening toothpaste containing the optimized perlite abrasive (PerlClean) is slightly better at tooth cleaning, lower in tooth abrasion, and significantly better at tooth polishing. Fine platy perlite particles are effective in tooth cleaning with low tooth abrasion. The enhanced performance of optimized perlite toothpaste abrasive compared to high-cleaning silica in a whitening toothpaste is attributed to the optimized particle size distribution and the unique platy particle geometry.

  11. Mirror surface metrology and polishing for AXAF/TMA

    International Nuclear Information System (INIS)

    Slomba, A.; Babish, R.; Glenn, P.

    1985-01-01

    The achievement of the derived goals for mirror surface quality on the Advanced X-ray Astrophysics Facility (AXAF), Technology Mirror Assembly (TMA) required a combination of state-of-the-art metrology and polishing techniques. In this paper, the authors summarize the derived goals and cover the main facets of the various metrology instruments employed, as well as the philosophy and technique used in the polishing work. In addition, they show how progress was measured against the goals, using the detailed error budget for surface errors and a mathematical model for performance prediction. The metrology instruments represented a considerable advance on the state-of-the-art and fully satisfied the error budget goals for the various surface errors. They were capable of measuring the surface errors over a large range of spatial periods, from low-frequency figure errors to microroughness. The polishing was accomplished with a computer-controlled process, guided by the combined data from various metrology instruments. This process was also tailored to reduce the surface errors over the full range of spatial periods

  12. The Persistence of Abnormal Returns: Analysis of Polish Manufacturing Industry

    Directory of Open Access Journals (Sweden)

    Marcin Puziak

    2017-06-01

    Full Text Available The ultimate goal of a company is to build the enterprise value, which is achievable thanks to abnormal profits generated in particular period. Moreover, firms are expected to take measures to maintain abnormal profit in the future. On the other hand, abnormal profits attract competitors, who increase competition and as a result abnormal profits disappear. The persistence of profit is a term that describes a situation, when the company is successful in maintaining the abnormal profit over time. The main aim of this paper is to investigate the persistence of abnormal profit in Polish manufacturing sector. In other words, the question is whether Polish manufacturing companies are able to maintain their abnormal profits over time. The persistence of abnormal profits is investigated using dynamic panel model with generalized method-of-moments estimators. The method is applied to a panel of 5303 Polish companies from manufacturing sector observed over the period 2006-2014. This paper contributes to the existing literature in two ways. First, analysis is performed for developing country. Second, analysis is performed both at the level of entire sector and at division level. Three main conclusions can be drawn from the conducted research: there are significant differences between profit rates within the same industry at division level; estimated persistence of abnormal profit coefficients are at moderate level; there are substantial differences between estimated persistence of profit coefficients for divisions in the same industry.

  13. The prevalence of burnout syndrome in Polish anaesthesiologists.

    Science.gov (United States)

    Misiołek, Aleksandra; Gorczyca, Piotr; Misiołek, Hanna; Gierlotka, Zbigniew

    2014-01-01

    Burnout syndrome is a psychological response to chronic work-related stress characterized by low enthusiasm towards the job, high psychological exhaustion, indolence and guilt. Being a medical doctor, both in Poland and in other countries, is one of the most stressful occupations and anaesthesiology is considered one of the most stressful specializations, which justify carrying out of the study on Polish anaesthesiologists. The aim of the study was to determine the prevalence of burnout syndrome in Polish anaesthesiologists Non-randomized cross-sectional study was carried out and data were gathered through a self-administrated questionnaire. The sample consisted of 373 Polish anaesthesiologists, 57.6% were women and 42.4% were men. A 66% response rate was achieved. The Burnout Syndrome was measured by the Spanish Burnout Inventory. The prevalence burnout risk was almost 70%. The percentage of participants who indicated very high levels of burnout was 18%; 5.9% of whom fell into profile 2 considered to be clinical. The instrument applied was reliable with Cronbach's alphas exceeding 0.70. The sample is characterized by high burnout risk with 5.9% of clinical cases. Participation in prevention programs is recommended.

  14. A Comparative Analysis of Polish and Czech International New Ventures

    Directory of Open Access Journals (Sweden)

    Lidia Danik

    2016-06-01

    Full Text Available The goal of this paper is to compare the characteristics of Polish and Czech companies which follow the Born Global internationalization model. More concretely, the analysis aims to discover the differences or similarities in terms of the internationalization paths of Polish and Czech SMEs in the characteristics of their managers in terms of the so-called “international vision” and in their innovativeness level. The introductory part of article provides a description of this internationalization model and the International New Ventures traits (INV and summarizes the recent studies on this topic conducted in Poland and Czech Republic. In the empirical part, the International New Ventures from the two countries are compared. The Polish sample includes 105 companies which were surveyed with use of computer assisted telephone interviews in autumn 2014. For the Czech Republic, the sample consists of 54 small and medium-sized companies, which were surveyed using the computer assisted web interviews from November 2013 till January 2014. The surveyed companies in both countries fulfilled the definition of Born Globals. Descriptive statistics, cross-tabulation analysis and non-parametric tests are applied to accomplish the goals of the paper.

  15. Fungal Biomass Protein Production from Trichoderma harzianum Using Rice Polishing.

    Science.gov (United States)

    Ahmed, Sibtain; Mustafa, Ghulam; Arshad, Muhammad; Rajoka, Muhammad Ibrahim

    2017-01-01

    Industrially important enzymes and microbial biomass proteins have been produced from fungi for more than 50 years. High levels of crude protein as much as 45% are present in fungal biomass with balanced essential amino acids. The aim of this study was to access the potential of Trichoderma harzianum to produce fungal biomass protein from rice polishings. Maximum biomass yield was obtained at 5% (w/v) rice polishings after 72 h of incubation at 28°C at pH 4. Carbon and nitrogen ratio of 20 : 1 gave significantly higher production of fungal biomass protein. The FBP in the 75 L fermenter contained 49.50% crude protein, 32.00% true protein, 19.45% crude fiber, 9.62% ash, 11.5% cellulose content, and 0.325% RNA content. The profile of amino acids of final FBP exhibited that all essential amino acids were present in great quantities. The FBP produced by this fungus has been shown to be of good nutritional value for supplementation to poultry. The results presented in this study have practical implications in that the fungus T. harzianum could be used successfully to produce fungal biomass protein using rice polishings.

  16. Antimicrobial susceptibility of Brachyspira hyodysenteriae isolated from 21 Polish farms.

    Science.gov (United States)

    Zmudzki, J; Szczotka, A; Nowak, A; Strzelecka, H; Grzesiak, A; Pejsak, Z

    2012-01-01

    Swine dysentery (SD) is a common disease among pigs worldwide, which contributes to major production losses. Antimicrobial susceptibility testing of B. hyodysenteriae, the etiological agent of SD, is mainly performed by the agar dilution method. This method has certain limitations due to difficulties in interpretation of results. The aim of this study was the analysis of antimicrobial susceptibility of Brachyspira hyodysenteriae (B. hyodysenteriae) Polish field isolates by broth microdilution procedure. The study was performed on 21 isolates of B. hyodysenteriae, collected between January 2006 to December 2010 from cases of swine dysentery. VetMIC Brachyspira panels with antimicrobial agents (tiamulin, valnemulin, doxycycline, lincomycin, tylosin and ampicillin) were used for susceptibility testing of B. hyodysenteriae. The minimal inhibitory concentration (MIC) was determined by the broth dilution procedure. The lowest antimicrobial activity was demonstrated for tylosin and lincomycin, with inhibition of bacterial growth using concentrations > 128 microg/ml and 32 microg/ml, respectively. In the case of doxycycline, the MIC values were < or = 2.0 microg/ml. No decreased susceptibility to tiamulin was found among the Polish isolates and MIC values for this antibiotic did not exceed 1.0 microg/ml. The results of the present study confirmed that Polish B. hyodysenteriae isolates were susceptible to the main antibiotics (tiamulin and valnemulin) used in treatment of swine dysentery. Further studies are necessary to evaluate a possible slow decrease in susceptibility to tiamulin and valnemulin of B. hyodysenteriae strains in Poland.

  17. Surface qualities after chemical-mechanical polishing on thin films

    International Nuclear Information System (INIS)

    Fu, Wei-En; Lin, Tzeng-Yow; Chen, Meng-Ke; Chen, Chao-Chang A.

    2009-01-01

    Demands for substrate and film surface planarizations significantly increase as the feature sizes of Integrated Circuit (IC) components continue to shrink. Chemical Mechanical Polishing (CMP), incorporating chemical and mechanical interactions to planarize chemically modified surface layers, has been one of the major manufacturing processes to provide global and local surface planarizations in IC fabrications. Not only is the material removal rate a concern, the qualities of the CMP produced surface are critical as well, such as surface finish, defects and surface stresses. This paper is to examine the CMP produced surface roughness on tungsten or W thin films based on the CMP process conditions. The W thin films with thickness below 1000 nm on silicon wafer were chemical-mechanical polished at different down pressures and platen speeds to produce different surface roughness. The surface roughness measurements were performed by an atomic force microscope (DI D3100). Results show that the quality of surface finish (R a value) is determined by the combined effects of down pressures and platen speeds. An optimal polishing condition is, then, possible for selecting the down pressures and platen speeds.

  18. Preparation of cerium oxide for lens polishing powder

    International Nuclear Information System (INIS)

    Injarean, Uthaiwan; Rodthongkom, Chouvana; Pichestapong, Pipat; Changkrurng, Kalaya

    2003-10-01

    Cerium is an element of rare earth group which is called lanthanide series. It is found in the ores like monazite and xenotime which are the tailings of tin mines in the south of Thailand. Cerium is used mostly as lens polishing powder besides the applications in other industries. In this study, cerium extracted from monazite ore breakdown by alkaline process was used for the preparation of lens polishing powder. Cerium hydroxide cake from the process was dissolved by hydrochloric acid and precipitated with oxalic acid. The oxalate precipitate then was calcined to oxide powder and its particle size was measured. Precipitation conditions being studied are concentration of feed cerium chloride solution, concentration of oxalic acid used for the precipitation, concentration of sulfuric acid used as precipitation control reagent and the precipitation temperature. It was found that the appropriate precipitation conditions yielded the fine oxide powder with particle size about 12μm. The oxide powder can be ground to the size of 1-3 μm which is suitable for making lens polishing powder

  19. Knowledge of chronic total occlusion among Polish interventional cardiologists.

    Science.gov (United States)

    Bryniarski, Krzysztof L; Zabojszcz, Michał; Dębski, Grzegorz; Marchewka, Jakub; Legutko, Jacek; Surowiec, Sławomir; Siudak, Zbigniew; Żmudka, Krzysztof; Dudek, Dariusz; Bryniarski, Leszek

    2015-01-01

    Chronic total occlusion (CTO) recanalization is indicated in patients with symptoms and evidence of ischemia, but in most cases those types of lesions are still treated medically. In the last few years CTO angioplasty technique has changed dramatically due to considerable advances in techniques and dedicated equipment. An attempt to assess the state of knowledge of technical aspects of CTO angioplasty of coronary arteries among Polish interventional cardiologists. Questionnaire survey performed during two major Polish invasive cardiology workshops. In the study there participated 113 physicians with an average length of work experience of 13 years, most of them cardiologists certified as independent primary operators. The majority of respondents recognized the need of prevention of thrombotic complications through control of activated coagulation time during the CTO procedures. Prevention of renal complications and X-ray protection are also recognized as a significant part of the procedures. The benefits from the use of over-the-wire microcatheters and balloons, the proper choice of dedicated guidewires, contralateral injections and retrograde technique are underestimated. Despite satisfactory knowledge about indications and qualification for the CTO procedure, the awareness of procedural aspects (particularly the retrograde technique) as well as the dedicated CTO equipment among Polish interventional cardiologists is still insufficient.

  20. 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. ...

  1. MRI findings of Wernicke encephalopathy revisited due to hunger strike

    Energy Technology Data Exchange (ETDEWEB)

    Unlu, Ercument [Department of Radiology, Trakya University School of Medicine, Mimar Sinan m, Muammer Aksoy c, Yorulmaz apt, No 50, D-1 22030 Edirne (Turkey)]. E-mail: drercument@yahoo.com; Cakir, Bilge [Department of Radiology, Trakya University School of Medicine, Mimar Sinan m, Muammer Aksoy c, Yorulmaz apt, No 50, D-1 22030 Edirne (Turkey); Asil, Talip [Department of Neurology, Trakya University School of Medicine, Edirne (Turkey)

    2006-01-15

    Background and Purpose: The purpose of this study was to determine the characteristic magnetic resonance imaging (MRI) findings among a group of patients who presented with Wernicke encephalopathy (WE) due to the neurological complications of a long-term hunger strike (HS). Methods: MRI studies also including the fluid-attenuated inversion recovery (FLAIR) sequence and diffusion-weighted imaging (DWI) of six male patients with WE aged from 25 to 38 years (mean age 31 years) were evaluated. Results: In all subjects, T2-weighted sequences, FLAIR and DWI revealed a signal hyperintensity within the posteromedial thalami and surrounding the third ventricle. In particular, on coronal images, the hyperintense areas around the third ventricle showed a suggestive 'double wing' configuration. We observed an increased signal on proton-density and T2-weighted images in the mamillary bodies of three patients. Four patients demonstrated additional hyperintensities within the periaqueductal region and/or the tectal plate. At least one lesion area in five of six patients demonstrated contrast enhancement. Conclusion: The consistent imaging findings of our study suggest that MRI is a reliable means of diagnosing WE. Acute WE is sometimes underdiagnosed, yet early diagnosis and treatment of WE is crucial in order to avoid persistent brain damage. MRI, including postcontrast T1-weighted imaging, DWI beneath standardized T2-weighted imaging, and FLAIR sequences may prove to be a valuable adjunct to clinical diagnosis and to provide additional information in acute and/or subacute WE.

  2. Accident scenarios triggered by lightning strike on atmospheric storage tanks

    International Nuclear Information System (INIS)

    Necci, Amos; Argenti, Francesca; Landucci, Gabriele; Cozzani, Valerio

    2014-01-01

    Severe Natech accidents may be triggered by lightning strike affecting storage tanks containing relevant inventories of hazardous materials. The present study focused on the identification of event sequences and accident scenarios following lightning impact on atmospheric tanks. Reference event trees, validated using past accident analysis, are provided to describe the specific accident chains identified, accounting for reference protection and mitigation safety barriers usually adopted in current industrial practice. An overall methodology was outlined to allow the calculation of the expected frequencies of final scenarios following lightning impact on atmospheric storage tanks, taking into account the expected performance of available safety barriers. The methodology was applied to a case study in order to better understand the data that may be obtained and their importance in the framework of quantitative risk assessment (QRA) and of the risk management of industrial facilities with respect to external hazards due to natural events. - Highlights: • Event sequences following lightning impact on atmospheric tanks were identified. • Reference event trees including standard safety barriers were obtained. • Safety barriers applied in industrial practice were assessed to quantify event trees. • Frequencies of final scenarios following lightning impact on tanks were calculated. • Natech scenarios caused by lightning have an important influence on risk profiles

  3. Electric converters of electromagnetic strike machine with capacitor supply

    Science.gov (United States)

    Usanov, K. M.; Volgin, A. V.; Kargin, V. A.; Moiseev, A. P.; Chetverikov, E. A.

    2018-03-01

    The application of pulse linear electromagnetic engines in small power strike machines (energy impact is 0.01...1.0 kJ), where the characteristic mode of rare beats (pulse seismic vibrator, the arch crash device bins bulk materials), is quite effective. At the same time, the technical and economic performance of such machines is largely determined by the ability of the power source to provide a large instantaneous power of the supply pulses in the winding of the linear electromagnetic motor. The use of intermediate energy storage devices in power systems of rare-shock LEME makes it possible to obtain easily large instantaneous powers, forced energy conversion, and increase the performance of the machine. A capacitor power supply of a pulsed source of seismic waves is proposed for the exploration of shallow depths. The sections of the capacitor storage (CS) are connected to the winding of the linear electromagnetic motor by thyristor dischargers, the sequence of activation of which is determined by the control device. The charge of the capacitors to the required voltage is made directly from the battery source, or through the converter from a battery source with a smaller number of batteries.

  4. MRI findings of Wernicke encephalopathy revisited due to hunger strike

    International Nuclear Information System (INIS)

    Unlu, Ercument; Cakir, Bilge; Asil, Talip

    2006-01-01

    Background and Purpose: The purpose of this study was to determine the characteristic magnetic resonance imaging (MRI) findings among a group of patients who presented with Wernicke encephalopathy (WE) due to the neurological complications of a long-term hunger strike (HS). Methods: MRI studies also including the fluid-attenuated inversion recovery (FLAIR) sequence and diffusion-weighted imaging (DWI) of six male patients with WE aged from 25 to 38 years (mean age 31 years) were evaluated. Results: In all subjects, T2-weighted sequences, FLAIR and DWI revealed a signal hyperintensity within the posteromedial thalami and surrounding the third ventricle. In particular, on coronal images, the hyperintense areas around the third ventricle showed a suggestive 'double wing' configuration. We observed an increased signal on proton-density and T2-weighted images in the mamillary bodies of three patients. Four patients demonstrated additional hyperintensities within the periaqueductal region and/or the tectal plate. At least one lesion area in five of six patients demonstrated contrast enhancement. Conclusion: The consistent imaging findings of our study suggest that MRI is a reliable means of diagnosing WE. Acute WE is sometimes underdiagnosed, yet early diagnosis and treatment of WE is crucial in order to avoid persistent brain damage. MRI, including postcontrast T1-weighted imaging, DWI beneath standardized T2-weighted imaging, and FLAIR sequences may prove to be a valuable adjunct to clinical diagnosis and to provide additional information in acute and/or subacute WE

  5. Cellular nonlinear networks for strike-point localization at JET

    International Nuclear Information System (INIS)

    Arena, P.; Fortuna, L.; Bruno, M.; Vagliasindi, G.; Murari, A.; Andrew, P.; Mazzitelli, G.

    2005-01-01

    At JET, the potential of fast image processing for real-time purposes is thoroughly investigated. Particular attention is devoted to smart sensors based on system on chip technology. The data of the infrared cameras were processed with a chip implementing a cellular nonlinear network (CNN) structure so as to support and complement the magnetic diagnostics in the real-time localization of the strike-point position in the divertor. The circuit consists of two layers of complementary metal-oxide semiconductor components, the first being the sensor and the second implementing the actual CNN. This innovative hardware has made it possible to determine the position of the maximum thermal load with a time resolution of the order of 30 ms. Good congruency has been found with the measurement from the thermocouples in the divertor, proving the potential of the infrared data in locating the region of the maximum thermal load. The results are also confirmed by JET magnetic codes, both those used for the equilibrium reconstructions and those devoted to the identification of the plasma boundary

  6. Can Reduced-Step Polishers Be as Effective as Multiple-Step Polishers in Enhancing Surface Smoothness?

    Science.gov (United States)

    Kemaloglu, Hande; Karacolak, Gamze; Turkun, L Sebnem

    2017-02-01

    The aim of this study was to evaluate the effects of various finishing and polishing systems on the final surface roughness of a resin composite. Hypotheses tested were: (1) reduced-step polishing systems are as effective as multiple-step systems on reducing the surface roughness of a resin composite and (2) the number of application steps in an F/P system has no effect on reducing surface roughness. Ninety discs of a nano-hybrid resin composite were fabricated and divided into nine groups (n = 10). Except the control, all of the specimens were roughened prior to be polished by: Enamel Plus Shiny, Venus Supra, One-gloss, Sof-Lex Wheels, Super-Snap, Enhance/PoGo, Clearfil Twist Dia, and rubber cups. The surface roughness was measured and the surfaces were examined under scanning electron microscope. Results were analyzed with analysis of variance and Holm-Sidak's multiple comparisons test (p One-gloss, Enamel Plus Shiny, and Venus Supra groups. (1) The number of application steps has no effect on the performance of F/P systems. (2) Reduced-step polishers used after a finisher can be preferable to multiple-step systems when used on nanohybrid resin composites. (3) The effect of F/P systems on surface roughness seems to be material-dependent rather than instrument- or system-dependent. Reduced-step systems used after a prepolisher can be an acceptable alternative to multiple-step systems on enhancing the surface smoothness of a nanohybrid composite; however, their effectiveness depends on the materials' properties. (J Esthet Restor Dent 29:31-40, 2017). © 2016 Wiley Periodicals, Inc.

  7. The General Strike - An Artist Talk on the Work of Santiago Sierra & Claire Fontaine

    OpenAIRE

    Mansoor, Jaleh

    2012-01-01

    The General Strike, the organized refusal to work among a critical mass of laborers, has been attendant upon and responsive to the capitalist form of accumulation since the latter’s inception. Having variously emerged and receded as a broadly recognized means of resistance since the mid 19th century, the potential of a general strike to precipitate capitalism's inherent tendency to crisis was forcefully expressed by the anti-austerity movement in Greece and in Spain in 2012. A general strike ...

  8. Comparison of foot strike patterns of barefoot and minimally shod runners in a recreational road race

    OpenAIRE

    Peter Larson

    2014-01-01

    Background: Previous studies of foot strike patterns of distance runners in road races have typically found that the overwhelming majority of shod runners initially contact the ground on the rearfoot. However, none of these studies has attempted to quantify foot strike patterns of barefoot or minimally shod runners. This study classifies foot strike patterns of barefoot and minimally shod runners in a recreational road race. Methods: High-speed video footage was obtained of 169 barefoot an...

  9. Review of the Lightning Strike Incident at Launch Complex 37 on July 27, 1967, and Comparison to a Gemini Lightning Strike

    Science.gov (United States)

    Llewellyn, J. A.

    1967-01-01

    The Launch Complex 37 lightning strike of July 27, 1967, was reviewed and compared to a similar incident on the Gemini Program. Available data indicate little likelihood of damaging currents having been present in SA-204 Launch Vehicle or the ground equipment during the July 27th incident. Based on the results of subsystem and system testing after the strike, anticipated results of future testing, the six months elapsed time between the strike-and launch, and the fact that much of the critical airborne electrical/electronic equipment has been removed since the strike for other reasons, no new actions are considered necessary at this time in the Gemini case, significant failures occurred in both airborne and ground circuits. Due to the resultant semi, condlictor uncertainty, and the relatively' short time prior to planned launch, all critical airborne components containing semiconduetors were replaced, and a sophisticated data comparison task was implemented.

  10. ‘The Nairobi General Strike [1950]: from protest to insurgency’

    OpenAIRE

    Hyde, David

    2002-01-01

    The Nairobi General Strike [1950] was the culmination of Kenya’s post war strike wave and urban upheaval. An unprecedented upsurge occurred with the general strikes in Mombasa [1947] led by the African Workers Federation [A.W.F.] and in Nairobi by the East African Trades Union Congress [E.A.T.U.C.]. While this has been termed and treated as a city wide strike, there is enough evidence to suggest a movement that went some way beyond Nairobi. The extent of the cohesion and reciprocal impacts am...

  11. Relationship between foot strike pattern, running speed, and footwear condition in recreational distance runners.

    Science.gov (United States)

    Cheung, Roy T H; Wong, Rodney Y L; Chung, Tim K W; Choi, R T; Leung, Wendy W Y; Shek, Diana H Y

    2017-06-01

    Compared to competitive runners, recreational runners appear to be more prone to injuries, which have been associated with foot strike patterns. Surprisingly, only few studies had examined the foot strike patterns outside laboratories. Therefore, this study compared the foot strike patterns in recreational runners at outdoor tracks with previously reported data. We also investigated the relationship between foot strike pattern, speed, and footwear in this cohort. Among 434 recreational runners analysed, 89.6% of them landed with rearfoot strike (RFS). Only 6.9 and 3.5% landed with midfoot and forefoot, respectively. A significant shift towards non-RFS was observed in our cohort, when compared with previously reported data. When speed increased by 1 m/s, the odds of having forefoot strike and midfoot strike relative to RFS increased by 2.3 times and 2.6 times, respectively. Runners were 9.2 times more likely to run with a forefoot strike in minimalists compared to regular running shoes, although 70% of runners in minimalists continued to use a RFS. These findings suggest that foot strike pattern may differ across running conditions and runners should consider these factors in order to mitigate potential injury.

  12. A model of high-rate indentation of a cylindrical striking pin into a deformable body

    Science.gov (United States)

    Zalazinskaya, E. A.; Zalazinsky, A. G.

    2017-12-01

    Mathematical modeling of an impact and high-rate indentation to a significant depth of a flat-faced hard cylindrical striking pin into a massive deformable target body is carried out. With the application of the kinematic extreme theorem of the plasticity theory and the kinetic energy variation theorem, the phase trajectories of the striking pin are calculated, the initial velocity of the striking pin in the body, the limit values of the inlet duct length, and the depth of striking pin penetration into the target are determined.

  13. 'Out of two bad choices, I took the slightly better one': vaccination dilemmas for Scottish and Polish migrant women during the H1N1 influenza pandemic.

    Science.gov (United States)

    Sim, J A; Ulanika, A A; Katikireddi, S V; Gorman, D

    2011-08-01

    Pregnancy has been identified as a risk factor for complications from pandemic H1N1 influenza, and pregnant women were identified as a target group for vaccination in the UK in the 2009 pandemic. Poland took a more conservative approach, and did not offer vaccination to pregnant women. Poland accounts for the largest wave of recent migrants to the UK, many of whom are in their reproductive years and continue to participate actively in Polish healthcare systems after migration. The authors speculated that different national responses may shape differences in approaches to the vaccine between Scottish and Polish women. This study therefore aimed to assess how pregnant Polish migrants to Scotland weighed up the risks and benefits of the vaccine for pandemic H1N1 influenza in comparison with their Scottish counterparts. A qualitative interview-based study comparing the views of Scottish and Polish pregnant women on H1N1 vaccination was carried out in 'real time' during the first 2 weeks of the vaccination programme in November 2009. One-to-one interviews were conducted with 10 women (five Polish and five Scottish) in their native language. Interviews were transcribed, translated, coded and analysed for differences and similarities in decision-making processes between the two groups. Contrary to expectations, Scottish and Polish women drew on a strikingly similar set of considerations in deciding whether or not to accept the vaccine, with individual women reaching different conclusions. Almost all of the women adopted a critical stance towards the vaccine. While most women understood that pregnancy was a risk factor for complications from influenza, their primary concern was protecting family health overall and their fetus in particular. Deciding whether or not to accept the vaccine was difficult for women. Some identified a contradiction between the culture of caution which characterizes pregnancy-related advice, and the fact that they were being urged to accept what

  14. The Chinese nuclear arsenal and its second-strike capability

    International Nuclear Information System (INIS)

    Cabestan, Jean-Pierre

    2013-03-01

    It is well known that China possesses a second- strike capability, but a great deal of uncertainty persists on the subject. Over the last few years, without officially adjusting its doctrine, China has nonetheless defined its objectives. In April 2010, the People's Liberation Army Daily indicated that China needed such a capability and contended that ballistic missile submarines (SSBNs) would constitute the safest means of delivery. In the same year, the IISS estimated that the People's Liberation Army was in possession of 90 ICBMs (66 ground-based missiles and 24 SLBMs) and 400 IRBM mainly aimed at Taiwan and Japan. The Pentagon's 2012 report proposed 50-75 ICBMs and 80 -120 IRBM and MRBM. While it is established that the People's Liberation Army is developing Jin class submarines (type-094, of which there are currently two in service, which will soon rise to five) and is developing solid-propellant missiles, which could be activated more quickly, not a great deal is known about the progress of these two projects. The JL-2 (7400 km), which is mounted on SSBNs, is still being tested. In parallel, the traditional principle to which China adheres - no first use of nuclear weapons - seems to have been slightly dented. Thus, in January 2011, the Japanese press agency Kyodo (relayed by Stratfor) reported that the People's Liberation Army had lowered the threshold for use of its strategic weapons: it could henceforth envisage a preventive nuclear strike against a nuclear power that had by conventional means destroyed key strategic targets on its territory, such as a nuclear power station, a dam, or a large city, having provided prior warning to the aggressor. But what most worries the U.S. and its Asian allies, particularly the Japanese, is the quasi-total opacity of the Chinese military nuclear programme. While in April 2010, the United States and Russia signed a treaty limiting their number of strategic weapons to 1550 by 2018, China considers that its programme cannot

  15. Positive Emotions Associated with "Counter-Strike" Game Playing.

    Science.gov (United States)

    Shin, Mirim; Heard, Rob; Suo, Chao; Chow, Chin Moi

    2012-10-01

    Digital game playing engages people for long periods of time. The pleasure offered by digital games may explain the players' consumption of this activity. Games may elicit both positive and negative emotions, which can be measured by encephalography (EEG). The EEG alpha asymmetry index (AI) is different in positive and negative emotions and so may be used to distinguish positive from negative emotions that occur during gaming. We hypothesized that the "Counter-Strike" (CS) game (Valve Software, Bellevue, WA) is pleasurable and demonstrable with a positive EEG AI. Twelve male participants ages 18-30 years underwent EEG recordings continuously during and postgame. EEG was also recorded pregame for control conditions of baseline (sitting on a chair staring at a blank wall), movement (moving fingers on the computer keyboard with a blank screen), sound (listening to the sound of the CS game with a blank screen), and screen (watching the CS game without playing). Self-ratings of emotional responses were completed at pre-, during, and postgame. A significant decrease in the EEG AI was observed under the screen condition compared with baseline, whereas an increase was observed postgame compared with the screen condition. The participants demonstrated a positive EEG AI following the "shoot" events (shoot opponents) and negative emotions after the "being shot" events. Subjective ratings of emotional response indicated happiness during and postgame, but anger and arousal were reported only during the game. The overall results are consistent with the hypothesis that predominantly positive emotional reactions are elicited from playing the CS game and concur with positive subjective ratings of happiness. Future studies may explore the relationship of game pleasure and obsessive game play.

  16. The Empire Strikes Back. Russian National Cinema After 2005

    Directory of Open Access Journals (Sweden)

    Tomasz Rawski

    2017-11-01

    Full Text Available The Empire Strikes Back. Russian National Cinema After 2005 The paper provides critical analysis of the latest wave of Russian national cinema (2005-2013, considered one of key instruments of Vladimir Putin’s nation-building cultural policy. The analysis, focused mostly on historical film and war film, reveals the concept of an ‘imperial nation’ as the main concept underlying this policy. The new Russian nation-concept is calculated to binding elements from two former Russian imperial traditions: tradition of the Russian Empire and the Soviet tradition, thus trying to overcome the identity crisis in contemporary Russia.   Imperium kontratakuje. Rosyjskie kino narodowe po 2005 roku Artykuł zajmuje się krytyczną analizą filmów najnowszej fali rosyjskiego kina narodowego (2005-2013, uważanej tu za jedno z kluczowych narzędzi polityki kulturalnej Władimira Putina obliczonej na budowanie narodu. Autorzy artykułu skupiają się przede wszystkim na filmie historycznym i wojennym, odsłaniając pojęcie „imperialnego narodu” jako konceptu stojącego u podstaw oficjalnej polityki. Nowe rosyjskie pojęcie narodu łączy w sobie dwie tradycje rosyjskie: tradycję Imperium Rosyjskiego oraz tradycję Związku Radzieckiego, próbując w ten sposób przezwyciężyć kryzys tożsamościowy współczesnej Rosji.

  17. Assessment of performing an MST strike in Tank 21H

    Energy Technology Data Exchange (ETDEWEB)

    Poirier, Michael R.

    2014-09-29

    Previous Savannah River National Laboratory (SRNL) tank mixing studies performed for the Small Column Ion Exchange (SCIX) project have shown that 3 Submersible Mixer Pumps (SMPs) installed in Tank 41 are sufficient to support actinide removal by MST sorption as well as subsequent resuspension and removal of settled solids. Savannah River Remediation (SRR) is pursuing MST addition into Tank 21 as part of the Large Tank Strike (LTS) project. The preliminary scope for LTS involves the use of three standard slurry pumps (installed in N, SE, and SW risers) in a Type IV tank. Due to the differences in tank size, internal interferences, and pump design, a separate mixing evaluation is required to determine if the proposed configuration will allow for MST suspension and strontium and actinide sorption. The author performed the analysis by reviewing drawings for Tank 21 [W231023] and determining the required cleaning radius or zone of influence for the pumps. This requirement was compared with previous pilot-scale MST suspension data collected for SCIX that determined the cleaning radius, or zone of influence, as a function of pump operating parameters. The author also reviewed a previous Tank 50 mixing analysis that examined the ability of standard slurry pumps to suspend sludge particles. Based on a review of the pilot-scale SCIX mixing tests and Tank 50 pump operating experience, three standard slurry pumps should be able to suspend sludge and MST to effectively sorb strontium and actinides onto the MST. Using the SCIX data requires an assumption about the impact of cooling coils on slurry pump mixing. The basis for this assumption is described in this report. Using the Tank 50 operating experience shows three standard slurry pumps should be able to suspend solids if the shear strength of the settled solids is less than 160 Pa. Because Tank 21 does not contain cooling coils, the shear strength could be larger.

  18. Lower limb joint angles and ground reaction forces in forefoot strike and rearfoot strike runners during overground downhill and uphill running.

    Science.gov (United States)

    Kowalski, Erik; Li, Jing Xian

    2016-11-01

    This study investigated the normal and parallel ground reaction forces during downhill and uphill running in habitual forefoot strike and habitual rearfoot strike (RFS) runners. Fifteen habitual forefoot strike and 15 habitual RFS recreational male runners ran at 3 m/s ± 5% during level, uphill and downhill overground running on a ramp mounted at 6° and 9°. Results showed that forefoot strike runners had no visible impact peak in all running conditions, while the impact peaks only decreased during the uphill conditions in RFS runners. Active peaks decreased during the downhill conditions in forefoot strike runners while active loading rates increased during downhill conditions in RFS runners. Compared to the level condition, parallel braking peaks were larger during downhill conditions and parallel propulsive peaks were larger during uphill conditions. Combined with previous biomechanics studies, our findings suggest that forefoot strike running may be an effective strategy to reduce impacts, especially during downhill running. These findings may have further implications towards injury management and prevention.

  19. Neologisms in bilingual digital dictionaries (on the example of Bulgarian-Polish dictionary

    Directory of Open Access Journals (Sweden)

    Ludmila Dimitrova

    2015-11-01

    Full Text Available Neologisms in bilingual digital dictionaries (on the example of Bulgarian-Polish dictionary The paper discusses the presentation of neologisms in the recent version of the Bulgarian-Polish digital dictionary. We also continue the discussion of important problems related to the classifiers of the verbs as headwords of the digital dictionary entries. We analyze some examples from ongoing experimental version of the Bulgarian-Polish digital dictionary.

  20. Poland, a workforce in transition: Exploring leadership styles and effectiveness of Polish vs. Western expatriate managers

    OpenAIRE

    Eisenberg, Jacob; Pieczonka, Artur; Eisenring, Martin; Mironski, Jacek

    2015-01-01

    Given the cultural differences between Western Europe and Poland, differences are expected in leadership styles and behaviours between Polish and Western managers. Our study explored Polish employees’ perceptions and attitudes toward expatriate Western versus local managers. The main method was surveying Polish employees working under Western managers in three mid-size companies. We supplemented the survey with in-depth interviews with five West European middle managers working in Poland. We ...

  1. An Exploratory Study of the Factors That May Affect Female Consumers’ Buying Decision of Nail Polishes

    OpenAIRE

    Sun, Chen; Adhikari, Koushik; Koppel, Kadri

    2015-01-01

    The objective of this study was to determine what factors female consumers valued more when they buy nail polish. Ninety-eight female consumers participated in a nail polish consumer study at the Sensory Analysis Center, Kansas State University. A questionnaire containing a check-all-that-apply (CATA) question, behavior questions and demographic questions was presented to each consumer. In the CATA question, the factors that may affect consumers’ decision to buy a nail polish were asked, incl...

  2. Composite adaptive control of belt polishing force for aero-engine blade

    Science.gov (United States)

    Zhsao, Pengbing; Shi, Yaoyao

    2013-09-01

    The existing methods for blade polishing mainly focus on robot polishing and manual grinding. Due to the difficulty in high-precision control of the polishing force, the blade surface precision is very low in robot polishing, in particular, quality of the inlet and exhaust edges can not satisfy the processing requirements. Manual grinding has low efficiency, high labor intensity and unstable processing quality, moreover, the polished surface is vulnerable to burn, and the surface precision and integrity are difficult to ensure. In order to further improve the profile accuracy and surface quality, a pneumatic flexible polishing force-exerting mechanism is designed and a dual-mode switching composite adaptive control(DSCAC) strategy is proposed, which combines Bang-Bang control and model reference adaptive control based on fuzzy neural network(MRACFNN) together. By the mode decision-making mechanism, Bang-Bang control is used to track the control command signal quickly when the actual polishing force is far away from the target value, and MRACFNN is utilized in smaller error ranges to improve the system robustness and control precision. Based on the mathematical model of the force-exerting mechanism, simulation analysis is implemented on DSCAC. Simulation results show that the output polishing force can better track the given signal. Finally, the blade polishing experiments are carried out on the designed polishing equipment. Experimental results show that DSCAC can effectively mitigate the influence of gas compressibility, valve dead-time effect, valve nonlinear flow, cylinder friction, measurement noise and other interference on the control precision of polishing force, which has high control precision, strong robustness, strong anti-interference ability and other advantages compared with MRACFNN. The proposed research achieves high-precision control of the polishing force, effectively improves the blade machining precision and surface consistency, and

  3. How to Investigate Polish Clusters’ Attractiveness for Inward FDI? Addressing Ambiguity Problem

    Directory of Open Access Journals (Sweden)

    Götz Marta

    2014-09-01

    Full Text Available The aim of the paper is to assess whether, and in what fashion, managers of Polish cluster organizations perceive the attractiveness of foreign direct investment in Polish clusters This research is exploratory and qualitative in nature. The complex nature of Polish clusters, which can benefit from and be competitively challenged by, FDI are identified and a conceptual framework for assessing that nature is proposed; specifically, research using the grounded theory method (GTM.

  4. Research on Laser Micro Polishing of SLS Technology Sintered Iron-Based Powder Surface

    OpenAIRE

    Gerda Vaitkūnaitė; Vladislav Markovič; Olegas Černašėjus

    2015-01-01

    The article analyzes laser micro polishing of 1.2083 steel samples produced applying selective laser sintering (SLS) method. The study has evaluated the distribution of the shape, size and temperature of the laser beam treated area in the surface layer of sintered and laser polished samples. Experimental tests have shown the impact of the technical parameters of laser micro polishing on the width and hardness of the impact zone of the treated sample. The microstructure analysis of laser treat...

  5. Development of on the machine process monitoring and control strategy in Robot Assisted Polishing

    DEFF Research Database (Denmark)

    Pilny, Lukas; Bissacco, Giuliano

    2015-01-01

    Robot Assisted Polishing (RAP) can be used to polish rotational symmetric and free form components achieving surface roughness down to Sa 10 nm. With the aim to enable unmanned robust and cost efficient application of RAP, this paper presents the development of a monitoring and control strategy....... The multisensory approach was experimentally validated in polishing with bonded abrasives demonstrating its suitability for process control in RAP....

  6. [Management of cytostatic drugs by nurses: analysis of preliminary results].

    Science.gov (United States)

    Bilski, Bartosz

    2004-01-01

    Cytostatic drugs pose a quite specific occupational risk to health care workers. There is a wide range of potential harmful effects, including remote effects, exerted by this group of drugs. In Polish and international regulations, standards of work safety and hygiene concerning these substances are clearly defined. Nevertheless working conditions in Polish health care institutions are now mostly influenced by economic and organizational problems, which may also be reflected in the compliance with the work safety rules. This paper presents a preliminary analysis of subjective assessment of practice with regard to the management of cytostatics reported by nurses, an occupational group mostly exposed to these substances. The study was carried out at hospital departments in the Warmińsko-Mazurskie Voivodship, where exposure of the staff to these drugs was observed. The study covered the whole nursing staff exposed. Completed questionnaires were obtained from 60 nurses, aged +/- 32 years (20-54 years) with job seniority +/- 8 years (2-18), including 58 nurses with secondary education and two university graduates. Undergraduate education did not develop in respondents skills to work with cytostatics. There is a need to increase the involvement of nursing schools, research institutes and teaching hospitals in the improvement of vocational training of nurses working with cytostatic drugs. To this end, all nurses should be covered with the obligatory training how to handle this group of drugs. The respondents reported that they had acquired their knowledge and experience of managing cytostatics in their work and during training organized at workplace. Despite the acquired knowledge and experience the interviewed nurses did not always comply with work safety and hygiene regulations. The problem of exposure to cytostatic drugs in the form of tablets was most frequently neglected. Some of the nurses were additionally exposed to ionizing radiation. Shortage of the nursing

  7. Effects of Polishing Bur Application Force and Reuse on Sintered Zirconia Surface Topography.

    Science.gov (United States)

    Fischer, N G; Tsujimoto, A; Baruth, A G

    2018-03-16

    Limited information is available on how to polish and finish zirconia surfaces following computer-aided design/computer-aided manufacturing (CAD/CAM), specifically, how differing application forces and reuse of zirconia polishing systems affect zirconia topography. To determine the effect of differing, clinically relevant, polishing application forces and multiple usages of polishing burs on the surface topography of CAD/CAM zirconia. One hundred twenty 220-grit carbide finished zirconia disks were sintered according to manufacturer's directions and divided into two groups for the study of two coarse polishing bur types. Each group was divided into subgroups for polishing (15,000 rpm) at 15 seconds for 1.0 N, 4.5 N, or 11 N of force using a purpose-built fixture. Subgroups were further divided to study the effects of polishing for the first, fifth, 15th, and 30th bur use, simulating clinical procedures. Unpolished surfaces served as a control group. Surfaces were imaged with noncontact optical profilometry (OP) and atomic force microscopy (AFM) to measure average roughness values (Ra). Polishing burs were optically examined for wear. Scanning electron microscopy (SEM) was performed on burs and zirconia surfaces. One-way ANOVA with post hoc Tukey HSD (honest significant difference) tests (α=0.05) were used for statistical analyses. AFM and OP Ra values of all polished surfaces were significantly lower than those of the unpolished control. Different polishing forces and bur reuse showed no significant differences in AFM Ra. However, significant differences in OP Ra were found due to differing application forces and bur reuse between the first and subsequent uses. SEM and optical micrographs revealed notable bur wear, increasing with increasing reuse. SEM and AFM micrographs clearly showed polished, periodic zirconia surfaces. Nanoscale topography, as analyzed with kurtosis and average groove depth, was found dependent on the specific polishing bur type. These in

  8. Acoustic emission-based in-process monitoring of surface generation in robot-assisted polishing

    DEFF Research Database (Denmark)

    Pilny, Lukas; Bissacco, Giuliano; De Chiffre, Leonardo

    2016-01-01

    The applicability of acoustic emission (AE) measurements for in-process monitoring of surface generation in the robot-assisted polishing (RAP) was investigated. Surface roughness measurements require interruption of the process, proper surface cleaning and measurements that sometimes necessitate...... automatic detection of optimal process endpoint allow intelligent process control, creating fundamental elements in development of robust fully automated RAP process for its widespread industrial application....... removal of the part from the machine tool. In this study, stabilisation of surface roughness during polishing rotational symmetric surfaces by the RAP process was monitored by AE measurements. An AE sensor was placed on a polishing arm in direct contact with a bonded abrasive polishing tool...

  9. Surface analysis of polished fused-silica laser lenses by ion-scattering spectrometry

    International Nuclear Information System (INIS)

    Orvek, K.; Steward, S.A.

    1982-01-01

    New advances in high-powered glass lasers, particularly the NOVA system, have resulted in a need for lenses having higher damage threshold values than those now available. It is currently thought that surface contaminants on the lenses are responsible for initiating part of the damage. These contaminants are apparently introduced during the final polishing stages. In this study, we used ion-scattering spectrometry (ISS) to identify contaminants arising through the use of different polishing techniques. Five lenses were studied, each having undergone different polishing procedures. The first lens was not polished after receiving it from the manfacturer (No. 381). Ion microprobe data were available for this lens, and they were compared to ISS results. The second lens had been polished with rouge, a polishing compound no longer in use (No. 796). This sample served as a further check on the ISS results. The third lens was studied as received from the manufacturer - with no handling or cleaning (No. 802). The final two lenses had both been polished using high-purity ceria, cerium oxide (No. 800 and No. 801). The difference between these two was that No. 800 was polished using a nylon lap, and No. 801 was polished using pitch as a lap. The 800-series lenses were all made from the same batch, and constituted the major part of the investigation

  10. Damage-free polishing of monocrystalline silicon wafers without chemical additives

    International Nuclear Information System (INIS)

    Biddut, A.Q.; Zhang, L.C.; Ali, Y.M.; Liu, Z.

    2008-01-01

    This investigation explores the possibility and identifies the mechanism of damage-free polishing of monocrystalline silicon without chemical additives. Using high resolution electron microscopy and contact mechanics, the study concludes that a damage-free polishing process without chemicals is feasible. All forms of damages, such as amorphous Si, dislocations and plane shifting, can be eliminated by avoiding the initiation of the β-tin phase of silicon during polishing. When using 50 nm abrasives, the nominal pressure to achieve damage-free polishing is 20 kPa

  11. Macroeconomic, legal, administrative and cultural factors of technological innovations1 in Polish industrial enterprises

    Directory of Open Access Journals (Sweden)

    Stanisław Sudoł

    2016-12-01

    The vast majority of experts participating in the study positively assessed the cultural conditions of technological innovativeness in Polish enterprises. Experts also provided negative cultural characteristics of Poles.

  12. [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.

  13. Research lessons from implementing a national nursing workforce study.

    Science.gov (United States)

    Brzostek, T; Brzyski, P; Kózka, M; Squires, A; Przewoźniak, L; Cisek, M; Gajda, K; Gabryś, T; Ogarek, M

    2015-09-01

    National nursing workforce studies are important for evidence-based policymaking to improve nursing human resources globally. Survey instrument translation and contextual adaptation along with level of experience of the research team are key factors that will influence study implementation and results in countries new to health workforce studies. This study's aim was to describe the pre-data collection instrument adaptation challenges when designing the first national nursing workforce study in Poland while participating in the Nurse Forecasting: Human Resources Planning in Nursing project. A descriptive analysis of the pre-data collection phase of the study. Instrument adaptation was conducted through a two-phase content validity indexing process and pilot testing from 2009 to September 2010 in preparation for primary study implementation in December 2010. Means of both content validation phases were compared with pilot study results to assess for significant patterns in the data. The initial review demonstrated that the instrument had poor level of cross-cultural relevance and multiple translation issues. After revising the translation and re-evaluating using the same process, instrument scores improved significantly. Pilot study results showed floor and ceiling effects on relevance score correlations in each phase of the study. The cross-cultural adaptation process was developed specifically for this study and is, therefore, new. It may require additional replication to further enhance the method. The approach used by the Polish team helped identify potential problems early in the study. The critical step improved the rigour of the results and improved comparability for between countries analyses, conserving both money and resources. This approach is advised for cross-cultural adaptation of instruments to be used in national nursing workforce studies. Countries seeking to conduct national nursing workforce surveys to improve nursing human resources policies may

  14. International Trade and Economic Growth in the Polish Economy

    Directory of Open Access Journals (Sweden)

    Henryk Gurgul

    2010-01-01

    Full Text Available The paper presents the results of examinations of linear and nonlinear causalities performed for international trade involving the Polish economy and its economic growth. In order to infer the impact of the world crisis on the Polish economy, two samples have been studied (containing quarterly data – a full sample (Q1 1996–Q3 2009 and pre-crisis sample (Q1 1996–Q3 2008. The results of linear causality tests support the existence of feedback between the growth rate of exports and growth in gross domestic product (GDP irrespectively of the time period chosen. For both the samples examined, no direct causal links between the growth rates of GDP and imports were detected. One can only suppose the existence of indirect links before the crisis. Bidirectional causality was found for growth rates of exports and imports only for the pre-crisis sample. Some weak evidence of a causal link running from the growth rate of imports to the growth rate of exports was also found for the period that covers the crisis, which may be interpreted as a confirmation of the fact that growth in imports also precedes growth in exports in bullish periods. It results from our computations that, at the time of the financial crisis of 2008, the main factor that caused Polish GDP growth to remain positive was domestic demand. The results of nonlinear causality analysis provided only weak evidence for causality running from GDP to exports, from GDP to imports and from imports to exports. (original abstract

  15. Analysis of the Motor Activities of Professional Polish Soccer Players

    Directory of Open Access Journals (Sweden)

    Andrzejewski Marcin

    2016-12-01

    Full Text Available Introduction. The aims of the present study were to determine the activity profiles of a large sample of Polish Premier League soccer players during elite-standard soccer matches depending on their position on the pitch and the intensity range of physical activity. Material and methods. The study sample comprised 1,178 players in 5 outfield positions: external defenders (ED, n = 289, central defenders (CD, n = 307, central midfield players (CM, n = 327, external midfield players (EM, n = 152, and forwards (F, n = 103. Altogether, 81 Polish League games held during four domestic seasons (2010-2011, 2011-2012, 2012-2013, and 2013-2014 were used in the analysis. A semi-automatic computerised player tracking system (Amisco Pro®, version 1.0.2, Nice, France was applied to create the match activity profiles of the teams. Results. The results of statistical analysis revealed that the average total distance covered by all the players (n = 1,178 was 11,313 ± 852 m. With respect to the players’ position on the pitch, the central midfielders travelled the longest average distance (11,894 ± 765 m during the game. The longest distance was covered in the V1 intensity range (62%, followed by V2 (15%, V3 (10%, V4 (8%, V5 (3%, and V6 (2%. Conclusions. The objective of this study was to verify the differences among playing positions and to quantify the demands placed on elite Polish soccer players in each individual position during match play. While analysing elite-level match play in terms of the overall distance covered in different categories of intensity, we found a number of statistically significant differences between different playing positions. The data presented in this study can be regarded as norms for elite soccer players, serve for present and future comparison, and represent the scientific basis for developing position-specific conditioning/training protocols in soccer.

  16. Polish Code of Ethics of a Medical Laboratory Specialist.

    Science.gov (United States)

    Elżbieta, Puacz; Waldemar, Glusiec; Barbara, Madej-Czerwonka

    2014-09-01

    Along with the development of medicine, increasingly significant role has been played by the laboratory diagnostics. For over ten years the profession of the medical laboratory specialist has been regarded in Poland as the autonomous medical profession and has enjoyed a status of one of public trust. The process of education of medical laboratory specialists consists of a five-year degree in laboratory medicine, offered at Medical Universities, and of a five-year Vocational Specialization in one of the fields of laboratory medicine such as clinical biochemistry, medical microbiology, medical laboratory toxicology, medical laboratory cytomorphology and medical laboratory transfusiology. An important component of medical laboratory specialists' identity is awareness of inherited ethos obtained from bygone generations of workers in this particular profession and the need to continue its further development. An expression of this awareness is among others Polish Code of Ethics of a Medical Laboratory Specialist (CEMLS) containing a set of values and a moral standpoint characteristic of this type of professional environment. Presenting the ethos of the medical laboratory specialist is a purpose of this article. Authors focus on the role CEMLS plays in areas of professional ethics and law. Next, they reconstruct the Polish model of ethos of medical diagnostic laboratory personnel. An overall picture consists of a presentation of the general moral principles concerning execution of this profession and rules of conduct in relations with the patient, own professional environment and the rest of the society. Polish model of ethical conduct, which is rooted in Hippocratic medical tradition, harmonizes with the ethos of medical laboratory specialists of other European countries and the world.

  17. Congress of the Polish Chamber of Tourism - Egypt 2017

    Directory of Open Access Journals (Sweden)

    Marek Napierała

    2017-12-01

    Full Text Available The aim of the article is to assess the effectiveness of the Congress of the Polish Chamber of Tourism 2017 in the elaboration of joint applications regarding the provision of substantive and logistical support to entrepreneurs as well as the pursuit of comprehensive regulation of tourism law; adaptation of Polish law to European standards. Research problems: What is the legal status in the field of tourism law regarding outgoing tourism, incoming tourism and MICE, children and youth tourism, domestic tourism and accommodation facilities, travel agents and air transport? What are the main problems of the industries and what are their solutions proposed? What is the position and conclusions of the Congress? Research methods: study of documents, source materials, study of Congress materials, interviews with participants of the Congress, personal participation in the Congress. The PIT Congress took place on 25.11. - 2.12.2017 in Egypt (Marsa Alam: "Groundbreaking changes in tourism law: challenges and problems". The aim of the Congress was to develop a common position in the field of tourism law on outgoing tourism, incoming tourism and MICE, children and youth tourism, domestic tourism and accommodation facilities, travel agents and air transport. PIT is the largest nationwide organization of the economic self-government of the tourism industry. Polish Chamber of Tourism, which is a full member of the European Union of Travel Agencies of the European Union (ECTAA. From the beginning of its existence (25 years of activity, it has been successfully applying for a new shape of tourist business in Poland. Conclusions: - trainings should be carried out using the latest laws, - substantive and logistical support should be provided to entrepreneurs, - strive for comprehensive regulation of tourism law, - tourism needs a host so that it can be prioritized as an important branch of the economy.

  18. THE EFFECTIVENESS OF INNOVATION PROJECTS IN POLISH INDUSTRY

    Directory of Open Access Journals (Sweden)

    Jan Zwolak

    2016-03-01

    Full Text Available The objective of the study was to determine the dependency of the net income from the sales of new and significantly modernised products on the expenditure on (1 marketing and staff training as well as on the expenditure on (2 land, buildings and structures; machinery, technical equipment and tools; and means of transportation within the scope of product and process innovations in Polish industry in 2010. Furthermore the study was intended to determine the effectiveness of the abovementioned expenditure aggregated to descriptive variables (1 and 2. In the study, the correlation and regression methods as well as the least squares method was applied.The estimation resulted in the determination of functional dependency of net sales income on the expenditure on marketing and staff training (0.5040 as well as on the expenditure on land, buildings and structures; machinery, technical equipment and tools; and means of transportation (0.8064 in the field of innovative processes in industry. The net sales income increased more than proportionally relative to the combined effect of the aforementioned expenditure (1.3104. The total increase in the aforementioned expenditure by 10% resulted in the increase in net sales income by 13.1%. The determined power regression model may have practical implications for the economic evaluation of expenditure in innovative processes in Polish industry in the future, as well as for the forecast (prediction.The expenditure application in innovative processes may also have social implications connected to the increase in the value-in-use of products and with the increase in the social efficiency of work in Polish industry.

  19. Database for content of mercury in Polish brown coal

    Science.gov (United States)

    Jastrząb, Krzysztof

    2018-01-01

    Poland is rated among the countries with largest level of mercury emission in Europe. According to information provided by the National Centre for Balancing and Management of Emissions (KOBiZE) more than 10.5 tons of mercury and its compounds were emitted into the atmosphere in 2015 from the area of Poland. Within the scope of the BazaHg project lasting from 2014 to 2015 and co-financed from the National Centre of Research and Development (NCBiR) a database was set up with specification of mercury content in Polish hard steam coal, coking coal and brown coal (lignite) grades. With regard to domestic brown coal the database comprises information on coal grades from Brown Coal Mines of `Bełchatów', `Adamów', `Turów' and `Sieniawa'. Currently the database contains 130 records with parameters of brown coal, where each record stands for technical analysis (content of moisture, ash and volatile particles), elemental analysis (CHNS), content of chlorine and mercury as well as net calorific value and combustion heat. Content of mercury in samples of brown coal grades under test ranged from 44 to 985 μg of Hg/kg with the average level of 345 μg of Hg/kg. The established database makes up a reliable and trustworthy source of information about content of mercury in Polish fossils. The foregoing details completed with information about consumption of coal by individual electric power stations and multiplied by appropriate emission coefficients may serve as the background to establish loads of mercury emitted into atmosphere from individual stations and by the entire sector of power engineering in total. It will also enable Polish central organizations and individual business entities to implement reasonable policy with respect of mercury emission into atmosphere.

  20. Parkinsonian abnormality of foot strike: a phenomenon of ageing and/or one responsive to levodopa therapy?

    OpenAIRE

    Hughes, J R; Bowes, S G; Leeman, A L; O'Neill, C J; Deshmukh, A A; Nicholson, P W; Dobbs, S M; Dobbs, R J

    1990-01-01

    1. Normally during walking, the heel strikes the ground before the forefoot. Abnormalities of foot strike in idiopathic Parkinson's disease may be amenable to therapy: objective measurements may reveal response which is not clinically apparent. Occult changes in foot strike leading to instability may parallel the normal, age-related loss of striatal dopamine. 2. The nature of foot strike was studied using pedobarography in 160 healthy volunteers, aged 15 to 91 years. Although 16% of strikes w...

  1. Effect of polishing instruments and polishing regimens on surface topography and phase transformation of monolithic zirconia: An evaluation with XPS and XRD analysis.

    Science.gov (United States)

    Al-Haj Husain, Nadin; Camilleri, Josette; Özcan, Mutlu

    2016-12-01

    Polishing procedures might alter monolithic zirconia (MZ) surface resulting in phase changes that can be deleterious for clinical performance and antagonist tooth wear. This study investigated the topographical features and phase transformation in MZ after polishing with different regimens simulating the clinical workflow. ​ MZ specimens (Katana Zirconia HT, Kuraray-Noritake) (12×12×1.8 mm(3)) were grinded and polished using one of the five systems assessed: BG: Silicone carbide polishers (Brownie, Greenie, Super Greenie); CG: Diamond impregnated ceramic polisher kit (Ceragloss); EV: Synthetically bonded grinder interspersed with diamond (EVE Kit); SL: Urethane coated paper with aluminium oxide grits (Soflex Finishing and Polishing System Kit) and DB: Diamond bur (8 µm). Polished specimens were initially roughened with 220 µm diamond burs (Grinding Bur-GB) (10 s, 160.000160,000 rpm) and considered for baseline measurements. Polishing regimens were performed for 10 s using a slow-speed hand piece under water-cooling except for SL, in a custom made device (750 g; 5000 and 75,000 rpm). Surface roughnesses, phase changes (XRD) were assessed, surface characterization was performed (SEM, EDS). The highest roughness was obtained with the EV system (1.11 µm) compared to those of other systems (0.13-0.4 µm) (pθ and minor peak at 34.94°2θ. While GB, CG, EV, SL and DB exhibited a peak shift to the left, BG demonstrated a right peak shift on the 2θ scale. Monoclinic phase change was not noted in any of the groups. All polishing methods, except BG, exhibited a peak shift towards the lower angles of the 2-theta scale. Since the peak shifts were in the order of fractions of an angle they are attributed to stress formation rather than a phase change in the material. Thus, all polishing systems tested may not be detrimental for the phase transformation of MZ. EV system resulted in the highest roughness and none of the polishing regimens restored the polishability to the

  2. Pre/post-strike atmospheric assessment system (PAAS)

    International Nuclear Information System (INIS)

    Peglow, S. G.; Molitoris, J. D.

    1997-01-01

    The Pre/Post-Strike Atmospheric Assessment System was proposed to show the importance of local meteorological conditions in the vicinity of a site suspected of storing or producing toxic agents and demonstrate a technology to measure these conditions, specifically wind fields. The ability to predict the collateral effects resulting from an attack on a facility containing hazardous materials is crucial to conducting effective military operations. Our study approach utilized a combination of field measurements with dispersion modeling to better understand which variables in terrain and weather were most important to collateral damage predictions. To develop the PAAS wind-sensing technology, we utilized a combination of emergent and available technology from micro-Doppler and highly coherent laser systems. The method used for wind sensing is to probe the atmosphere with a highly coherent laser beam. As the beam probes, light is back-scattered from particles entrained in the air to the lidar transceiver and detected by the instrument. Any motion of the aerosols with a component along the beam axis leads to a Doppler shift of the received light. Scanning in a conical fashion about the zenith results in a more accurate and two-dimensional measurement of the wind velocity. The major milestones in the benchtop system development were to verify the design by demonstrating the technique in the laboratory, then scale the design down to a size consistent with a demonstrator unit which could be built to take data in the field. The micro-Doppler heterodyne system we developed determines absolute motion by optically mixing a reference beam with the return signal and has shown motion sensitivity to better than 1 cm/s. This report describes the rationale, technical approach and laboratory testing undertaken to demonstrate the feasibility and utility of a system to provide local meteorological data and predict atmospheric particulate motion. The work described herein was funded by

  3. Rights and obligations of communal enterprises under Polish administrative law

    International Nuclear Information System (INIS)

    Filipek, J.

    1992-01-01

    The paper elucidates the legal environment in which Polish power producing and distributing enterprises operate. In particular, the different forms of communal enterprises are described: public owned companies; public owned companies serving ''higher purposes''; communal enterprises operating on the strength of special laws; forms of organization subject to private law. Over the long term the rules in the sphere of the communal economy can be simplified. As the administrative judiciary develops, comprehensive administrative surveillance will become superfluous. The communal enterprises render their services to the citizen. The legal remedies at the citizen's disposal are the administrative complaint and the appeal to the administrative courts. (orig./HSCH) [de

  4. RISK IDENTIFICATION TOOLS – POLISH MSMES COMPANIES PRACTICES

    Directory of Open Access Journals (Sweden)

    Iwona Gorzeń-Mitka

    2013-07-01

    Full Text Available The purpose of this study is to present risk identification tools in Polish micro, small and medium-sized enterprises (MSMEs. Risk identification is a key element of the risk management process in companies. Correctly fitting risk identification tools affect the accuracy of management decisions. The result of research is to identify the leading risk identification tools used by MSMEs. The study was conducted in 2010-2012 using a mixed survey-monographic method and questionnaires. The qualitative data were obtained during the study.

  5. Discriminant analysis in Polish manufacturing sector performance assessment

    Directory of Open Access Journals (Sweden)

    Józef Dziechciarz

    2004-01-01

    Full Text Available This is a presentation of the preliminary results of a larger project on the determination of the attractiveness of manufacturing branches. Results of the performance assessment of Polish manufacturing branches in 2000 (section D „Manufacturing” – based on NACE – Nomenclatures des Activites de Communite Europeene are shown. In the research, the classical (Fisher’s linear discriminant analysis technique was used for the analysis of the profit generation ability by the firms belonging to a certain production branch. For estimation, the data describing group level was used – for cross-validation, the classes data.

  6. Theorizing Polish migration across Europe: perspectives, concepts, and methodologies

    Directory of Open Access Journals (Sweden)

    Elżbieta M. Goździak

    2016-08-01

    Full Text Available Theorizing Polish migration across Europe: perspectives, concepts, and methodologies With the focus on the post-2004 mobility of Polish citizens, in this article we discuss two interrelated questions; namely, what are the most productive ways to theorize contemporary Polish migration, and what are the most fruitful methodologies aimed at understanding Polish migration and Poles on the move? In the first part of this article we unpack three interrelated theoretical frameworks: ‘liquid migration’, ‘regimes of mobility,’ and ‘transnationalism’. The methodological discussion in the second part of the article focuses mainly on outlining and contextualizing the most common approaches to migration phenomena. By critically introducing quantitative and qualitative methodologies, we explore and indicate the advantages of the ethnographic perspective and the merits and predicaments of research engagement in multiple sites.   Polskie migracje w Europie: perspektywy, koncepcje, metodologie Z naciskiem na mobilność obywateli polskich po przyłączeniu Polski do Unii Europejskiej w 2004 roku, w niniejszym artykule staramy się odpowiedzieć na dwa powiązane ze sobą pytania: jakie są najbardziej wydajne sposoby teoretyzowania współczesnej migracji polskiej oraz jakie są najbardziej owocne metody badawcze mające na celu zrozumienie polskiej migracji po akcesji do UE? W pierwszej części artykułu przedstawiamy więc trzy powiązane ze sobą koncepcje teoretyczne: „płynna migracja”, „reżimy mobilności” oraz transnarodowość. Dyskusja metodologiczna w drugiej części artykułu skupia się natomiast głównie na przedstawieniu najczęściej stosowanej metodyki i metodologii w badaniach zjawisk migracyjnych. Wprowadzając krytyczną perspektywę na temat ilościowych i jakościowych metod badawczych, staramy się wskazać wartość poznawczą perspektywy etnograficznej oraz wady i zalety etnograficznego zaangażowania badawczego w

  7. Circular motion and Polish Doughnuts in NUT spacetime

    Science.gov (United States)

    Jefremov, Paul I.

    The astrophysical relevance of the NUT spacetime(s) is a matter of debate due to pathological properties exhibited by this solution. However, if it is realised in nature, then we should look for the characteristic imprints of it on possible observations. One of the major sources of data on black hole astrophysics is the accretion process. Using a simple but fully analytical ``Polish Doughnuts'' model of accretion disk one gets both qualitative and quantitative differences from the Kerr spacetime produced by the presence of the gravitomagnetic charge. The present paper is based on our work Jefremov & Perlick (2016).

  8. Advanced ion exchange resins for PWR condensate polishing

    International Nuclear Information System (INIS)

    Hoffman, B.; Tsuzuki, S.

    2002-01-01

    The severe chemical and mechanical requirements of a pressurized water reactor (PWR) condensate polishing plant (CPP) present a major challenge to the design of ion exchange resins. This paper describes the development and initial operating experience of improved cation and anion exchange resins that were specifically designed to meet PWR CPP needs. Although this paper focuses specifically on the ion exchange resins and their role in plant performance, it is also recognized and acknowledged that excellent mechanical design and operation of the CPP system are equally essential to obtaining good results. (authors)

  9. Specificity of Geotechnical Measurements and Practice of Polish Offshore Operations

    Directory of Open Access Journals (Sweden)

    Bogumil Laczynski

    2015-12-01

    Full Text Available As offshore market in Europe grows faster and faster, new sea areas are being managed and new ideas on how to use the sea potential are being developed. In North Sea, where offshore industry conducts intensive expansion since late 1960s, numerous wind farms, oil and gas platforms and pipelines have been put into operation following extensive research, including geotechnical measurement. Recently, a great number of similar projects is under development in Baltic Sea, inter alia in Polish EEZ, natural conditions of which vary from the North Sea significantly. In this paper, those differences are described together with some solutions to problems thereby arising.

  10. Polish Decadence: Leopold Staff's Igrzysko in the European Context

    Directory of Open Access Journals (Sweden)

    Julia Przybos

    2012-03-01

    expression. It is my hypothesis that taken out of its secular context, religious revisionism of the kind practiced by French decadents may be seen as shocking transgression in a fiercely catholic country like Poland. In the country that lost its independence in 1794 and was ever since seeking to regain it, Catholic Church was perceived as an essential ally in the struggle against main occupying powers: Orthodox Russia, and Protestant Prussia. In the course of the 19th century Catholicism and patriotism had been effectively fused in Polish national conscience. In this charged political context a Polish author revisiting Church dogma or tradition was at risk of being perceived not only as a religious outcast but also as a traitor to the cause of Polish independence. To test my hypothesis I propose to examine Igrzysko (Game, a forgotten play by Leopold Staff. Admired today chiefly as a poet, the young Staff wrote Igrzysko in Poland after a long sojourn in Paris where he had lived among the international crowd of fin de siècle writers and artists. The play was first produced in Lemberg in 1909 and after a few performances vanished forever from Polish theatrical repertoire. Leopold Staff's play is set in ancient Rome and depicts tribulations of an actor who, while impersonating a Christian awaiting crucifixion, converts to Christianity. In his play, Staff revives the legend of Saint Genesius, an actor in Arles who died a martyr's death in 286 under Diocletian. In Spain, Saint Genesius's legend inspired Lope de Vega who wrote Acting is Believing (Lo fingido verdadero, 1607. In France, it was the source for Jean Rotrou's Saint Genest (1646. All told, the legend of Genesius is a popular theme for artists who wish to explore the distinction between art and life. An important addition to this old tradition, Staff's play contains, however, a decadent and potentially scandalous twist. Unlike in Acting is Believing and Saint Genest, the protagonist's conversion is very short

  11. Condensate polisher application for PWR steam generator corrosion control

    International Nuclear Information System (INIS)

    Sawochka, S.G.; Leibovitz, J.; Siegwarth, D.P.; Pearl, W.L.

    1981-01-01

    The evolution of corrosion attack modes particularly in recirculating U-tube PWR steam generators has dictated a thorough review of the advantages and disadvantages of condensate polishing. Analytical modeling techniques to qualitatively predict crevice chemistry variations resulting from steam generator bulk water variations have allowed valuable insights to be developed. Modeling results complemented by steam generator and laboratory corrosion data will be employed to set condensate demineralizer effluent specifications consistent with control of steam generator corrosion. Laboratory and plant studies are being performed to demonstrate achievability of necessary effluent specifications. (author)

  12. Between positivism and narrativism in Polish methodology of history

    OpenAIRE

    Brzechczyn, Krzysztof

    2013-01-01

    This paper has two main purposes. Its primary purpose is to present the reception of the discussion between positivism and narrativism in the Polish methodology of history. A secondary one is to paraphrase, using the notion apparatus of the idealisational theory of science, the issue of the accuracy of explanation. The article consists of six parts. In the first part, Hempel’s deductive-nomological (or covering-law) model of explanation is presented. In the second part, the main tenets and as...

  13. Are physicians' strikes ever morally justifiable? A call for a return to ...

    African Journals Online (AJOL)

    Though physicians strike provides an opportunity to generate more knowledge about the process in which legitimacy of an organization can be restored, it meets with a great deal of resistance not only by the public but from within the medical profession. This paper critically examines the legitimacy of strike by medical ...

  14. The balancing act between the constitutional right to strike and the ...

    African Journals Online (AJOL)

    While the South African Constitution enshrines both children's right to a basic education and teachers' right to strike, conflict between these two often occurs when the way in which teachers' unions conduct strike actions detracts from learners' education. This article identifies the parties affected by industrial action in the ...

  15. Expert Anticipatory Skill in Striking Sports: A Review and a Model

    Science.gov (United States)

    Muller, Sean; Abernethy, Bruce

    2012-01-01

    Expert performers in striking sports can hit objects moving at high speed with incredible precision. Exceptionally well developed anticipation skills are necessary to cope with the severe constraints on interception. In this paper, we provide a review of the empirical evidence regarding expert interception in striking sports and propose a…

  16. Factors affecting defensive strike behavior in Brown Treesnakes (Boiga irregularis) provoked by humans

    Science.gov (United States)

    Spencer, McKayka M.; Lardner, Bjorn; Mazurek, M.J.; Reed, Robert N.

    2015-01-01

    Striking is a typical antipredator defense exhibited by many species of snakes. While trapping Brown Treesnakes (Boiga irregularis) on Guam, we observed that snakes most frequently struck at an approaching person at a site where snakes had been trapped, marked, and handled in the past. Using a combination of between-sites and within-site comparisons, we assessed if the propensity to strike was correlated with capture histories (both recent and long-term), snake size, body condition (a proxy to nutritional stress), sex, or tail condition (broken or intact), while controlling for confounding variables. We confirmed that propensity to strike was higher at the site where we had been conducting capture-mark-recapture for several years. However, we were unable to demonstrate a correlation between striking tendencies and individual recent or long-term capture histories. The only morphological covariate that had an effect on strike propensity was sex, with females striking more often than males. After removing the site effect from our model, we found that snakes missing parts of their tails were more likely to strike than snakes with intact tails. We have yet to identify the factor(s) that cause the pronounced difference across sites in snake propensity to strike, and data from additional sites might help elucidate any geographical patterns.

  17. Effects of Foot Strike and Step Frequency on Achilles Tendon Stress During Running.

    Science.gov (United States)

    Lyght, Michael; Nockerts, Matthew; Kernozek, Thomas W; Ragan, Robert

    2016-08-01

    Achilles tendon (AT) injuries are common in runners. The AT withstands high magnitudes of stress during running which may contribute to injury. Our purpose was to examine the effects of foot strike pattern and step frequency on AT stress and strain during running utilizing muscle forces based on a musculoskeletal model and subject-specific ultrasound-derived AT cross-sectional area. Nineteen female runners performed running trials under 6 conditions, including rearfoot strike and forefoot strike patterns at their preferred cadence, +5%, and -5% preferred cadence. Rearfoot strike patterns had less peak AT stress (P forefoot strike pattern. A reduction in peak AT stress and strain were exhibited with a +5% preferred step frequency relative to the preferred condition using a rearfoot (P forefoot (P=.005) strike pattern. Strain rate was not different (P > .05) between step frequencies within each foot strike condition. Our results suggest that a rearfoot pattern may reduce AT stress, strain, and strain rate. Increases in step frequency of 5% above preferred frequency, regardless of foot strike pattern, may also lower peak AT stress and strain.

  18. Strike type variation among Tarahumara Indians in minimal sandals versus conventional running shoes

    Directory of Open Access Journals (Sweden)

    Daniel E. Lieberman

    2014-06-01

    Conclusion: These data reinforce earlier studies that there is variation among foot strike patterns among minimally shod runners, but also support the hypothesis that foot stiffness and important aspects of running form, including foot strike, differ between runners who grow up using minimal versus modern, conventional footwear.

  19. Variation in Foot Strike Patterns among Habitually Barefoot and Shod Runners in Kenya.

    Science.gov (United States)

    Lieberman, Daniel E; Castillo, Eric R; Otarola-Castillo, Erik; Sang, Meshack K; Sigei, Timothy K; Ojiambo, Robert; Okutoyi, Paul; Pitsiladis, Yannis

    2015-01-01

    Runners are often categorized as forefoot, midfoot or rearfoot strikers, but how much and why do individuals vary in foot strike patterns when running on level terrain? This study used general linear mixed-effects models to explore both intra- and inter-individual variations in foot strike pattern among 48 Kalenjin-speaking participants from Kenya who varied in age, sex, body mass, height, running history, and habitual use of footwear. High speed video was used to measure lower extremity kinematics at ground contact in the sagittal plane while participants ran down 13 meter-long tracks with three variables independently controlled: speed, track stiffness, and step frequency. 72% of the habitually barefoot and 32% of the habitually shod participants used multiple strike types, with significantly higher levels of foot strike variation among individuals who ran less frequently and who used lower step frequencies. There was no effect of sex, age, height or weight on foot strike angle, but individuals were more likely to midfoot or forefoot strike when they ran on a stiff surface, had a high preferred stride frequency, were habitually barefoot, and had more experience running. It is hypothesized that strike type variation during running, including a more frequent use of forefoot and midfoot strikes, used to be greater before the introduction of cushioned shoes and paved surfaces.

  20. Variation in Foot Strike Patterns among Habitually Barefoot and Shod Runners in Kenya.

    Directory of Open Access Journals (Sweden)

    Daniel E Lieberman

    Full Text Available Runners are often categorized as forefoot, midfoot or rearfoot strikers, but how much and why do individuals vary in foot strike patterns when running on level terrain? This study used general linear mixed-effects models to explore both intra- and inter-individual variations in foot strike pattern among 48 Kalenjin-speaking participants from Kenya who varied in age, sex, body mass, height, running history, and habitual use of footwear. High speed video was used to measure lower extremity kinematics at ground contact in the sagittal plane while participants ran down 13 meter-long tracks with three variables independently controlled: speed, track stiffness, and step frequency. 72% of the habitually barefoot and 32% of the habitually shod participants used multiple strike types, with significantly higher levels of foot strike variation among individuals who ran less frequently and who used lower step frequencies. There was no effect of sex, age, height or weight on foot strike angle, but individuals were more likely to midfoot or forefoot strike when they ran on a stiff surface, had a high preferred stride frequency, were habitually barefoot, and had more experience running. It is hypothesized that strike type variation during running, including a more frequent use of forefoot and midfoot strikes, used to be greater before the introduction of cushioned shoes and paved surfaces.

  1. Footwear Matters: Influence of Footwear and Foot Strike on Load Rates during Running.

    Science.gov (United States)

    Rice, Hannah M; Jamison, Steve T; Davis, Irene S

    2016-12-01

    Running with a forefoot strike (FFS) pattern has been suggested to reduce the risk of overuse running injuries, due to a reduced vertical load rate compared with rearfoot strike (RFS) running. However, resultant load rate has been reported to be similar between foot strikes when running in traditional shoes, leading to questions regarding the value of running with a FFS. The influence of minimal footwear on the resultant load rate has not been considered. This study aimed to compare component and resultant instantaneous loading rate (ILR) between runners with different foot strike patterns in their habitual footwear conditions. Twenty-nine injury-free participants (22 men, seven women) ran at 3.13 m·s along a 30-m runway, with their habitual foot strike and footwear condition. Ground reaction force data were collected. Peak ILR values were compared between three conditions; those who habitually run with an RFS in standard shoes, with an FFS in standard shoes, and with an FFS in minimal shoes. Peak resultant, vertical, lateral, and medial ILR were lower (P strike. When running with an FFS, peak posterior ILR were lower (P strike. Therefore, it appears that footwear alters the load rates during running, even with similar foot strike patterns.

  2. The initiation and linkage of surface fractures above a buried strike ...

    Indian Academy of Sciences (India)

    a buried strike-slip fault: An experimental approach. N Ghosh and A ... conditions viz., (i) heterogeneous simple shear of the cover rocks above a buried strike slip fault. (wrench .... (iii) study of fracture types in the damage zones from Gozo .... was dominant, the results may vary from a true ... For example, as shown in figure 5 ...

  3. Law and ethics of strikes in the Nigerian health system | Mcfubara ...

    African Journals Online (AJOL)

    Despite that health services are essential, health sector strikes have continued. The purpose here was to examine the legal and ethical justification of strikes in the Nigerian health sector. Documentary analysis and literature reviews were carried out. It was found that the Trade Disputes Act and the National Health Act do not ...

  4. 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.

  5. 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.

  6. 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)

  7. Patient monitoring in Polish assisted reproductive technology centres

    Directory of Open Access Journals (Sweden)

    Anna Krawczak

    2016-12-01

    Full Text Available In 2014, the Polish non-governmental patient association ‘Our Stork’ (Nasz Bocian introduced the ‘Patient monitoring in ART centres’ research project to gather previously unrecorded information on the situation of infertile people and the provision of assisted reproductive treatment in Poland. When the research project began, assisted reproductive treatment centres were unregulated by the state, a situation that had existed for more than 28 years following the birth of the first Polish test-tube baby in 1987. Patients signed civil contracts, remaining unprotected in terms of safety of treatment and recognition of their rights, and their presumed social position was described by doctors as ‘disciplined patients’ – a reflection of what Michele Foucault described as biopolitics. The research project comprised patient questionnaires (responses from 722 patients provided the basis for the document ‘Patient Recommendations in Infertility Treatment’, analysis of civil contracts and their accuracy in the context of patients’ legal rights in Poland, and in-depth interviews with assisted reproductive treatment centres’ owners, doctors, midwives, and patients to explore patient care. The data reveal that there is a lack of patient-centred care among doctors and medical staff in Poland and that following the passing into law of the 2015 Infertility Act, which introduced state regulation of assisted reproductive treatment centres, the situation for patients worsened.

  8. [The Polish adaptation of the public speaking anxiety questionnaire].

    Science.gov (United States)

    Chodkiewicz, Jan; Miniszewska, Joanna

    2015-01-01

    The aim of the study was the Polish adaptation of the shortened Public Speaking Anxiety Questionnaire GFER by Spitznagel and co-workers. GFER is a self-assessment method which consists of 16 statements and is designed to assess emotions, physiological reactions, and thoughts that appear in a situation of public speaking. GFER was used to examine 320 students from Lodz's universities. The State/Trait Anxiety Inventory - STAI by Spielberger, The Hospital Anxiety and Depression Scale by Zigmunt and Snaith and TCI by Cloninger were also used. The Polish version of GFER is a reliable and valid tool. The factor structure is similar to the original structure. As a result of the conducted analyses, there was obtained the 9-item version of the tool, which has a 2-factor structure - factor I: emotional and physiological reactions, factor II: worrying. The results obtained with GFER present a statistically significant correlation with other measures of anxiety and with the dimension of temperament: harm avoidance. The obtained results indicate that GFER may be used in both scientific research and therapeutic practice.

  9. THE LOW PRICE EFFECT ON THE POLISH MARKET

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    Adam Zaremba

    2014-06-01

    Full Text Available In this paper we investigate the characteristics of the low price anomaly, which implies higher returns to stocks with a low nominal price. The research aims to broaden academic knowledge in a few ways. Firstly, we deliver some fresh evidence on the low price effect from the Polish market. Secondly, we analyze the interdependence between the low price effect and other return factors: value, size and liquidity. Thirdly, we investigate whether the low price effect is present after accounting for liquidity. Fourthly, we check to see whether the low price effect is robust to transaction costs. The paper is composed of three main sections. In the beginning, we review the existing literature. Next, we present the data sources and research methods employed. Finally, we discuss our research findings. Our computations are based on all the stocks listed on the Warsaw Stock Exchange (WSE in the years 2003-2013. We have concluded that the low price effect is present on the Polish market, although the statistical significance is very weak and it disappears entirely after accounting for transaction costs and liquidity.

  10. Professional activity of Polish peri- and postmenopausal women.

    Science.gov (United States)

    Żołnierczuk-Kieliszek, Dorota; Janiszewska, Mariola; Mielniczuk, Agata; Dziedzic, Małgorzata A; Firlej, Ewelina

    2016-11-01

    The menopausal transition as one of the stages in women's life can bring many ailments which complicate the accomplishment of professional duties. The situation of women on the Polish job market is determined by many barriers and stereotypes which impede women's access to jobs and professional promotions. The aim of the study was to estimate the professional status and job satisfaction of women aged 40-65. The research was carried out by a survey method, a poll technique in the period from January to March 2016. An original questionnaire consisting of 35 questions was used as a research tool. The analysis of obtained results shows that the arithmetic mean of the age of women in full-time employment was 51.84 years whereas the arithmetic mean of the age of women in part-time or seasonal employment was 52.64. Women aged 45-60 were characterised by a significantly lower job satisfaction than women over 60 years of age. The highest percentage of women in full-time employment lived in large cities. The financial situation of working women determined their job satisfaction. Well-off respondents were more pleased with their jobs than women in a worse financial situation. There is a strong need of education about counteraction of gender and age discrimination on the Polish labour market. The struggle against discrimination requires support on each level of the state administration through the implementation of numerous regulations facilitating the final period and resumption of women's professional activity.

  11. Influence of Polish Arms, Armour and Militaria on Western Europe

    Directory of Open Access Journals (Sweden)

    Lenkiewicz, Z. S.

    1980-12-01

    Full Text Available Up to approximately the 15th century the arms and the armament of a Polish knight were very similar in style to those used in the west: heavy Armour, heavy sword, and heavy horse. However, in the face of the continuous attacks by Tartars, and later on Turks, on Polish territories, the enemy consisting of very light cavalry, on small but very quick and manageable horses, the heavy knights were of little use. Long before the 15th century the armament and the tactics had to be slowly modified and adapted to the enemy's armament and stratagems.

    Hasta antes del siglo XV, las armas y armamento de los caballeros polacos eran muy similares en estilo a los utilizados en Occidente: una pesada armadura, una pesada espada, un pesado caballo. Sin embargo, frente a los contínuos ataques al territorio polaco, primero de los tártaros y posteriormente de los turcos, utilizando una caballería muy ligera montando caballos de pequeño tamaño pero muy rápidos y manejables, los caballeros tan pesadamente armados eran de poca utilidad. Tácticas y armamento hubieron de adaptarse a las del enemigo. [traducido por la redacción

  12. FOOD SAFETY SYSTEMS’ FUNCTIONING IN POLISH NETWORKS OF GROCERY STORES

    Directory of Open Access Journals (Sweden)

    Paweł NOWICKI

    2013-04-01

    Full Text Available This article shows the way how the food safety systems are functioning in Polish networks of grocery stores. The study was conducted in the fourth quarter of 2012 in the south‐eastern Poland. There were chosen three organizations that meet certain conditions: medium size Polish grocery network without participation of foreign capital and up to 30 retail locations within the group. Studies based on a case study model. The research found that regular and unannounced inspections carried out to each store's, impact on increasing safety of food offered and the verification of GHP requirements on the headquarters level has a significant impact on the safety of food offered as well as on the knowledge and behavior of employees. In addition it was found that the verification and analysis of food safety management system is an effective tool for improving food safety. It was also shown that in most cases there is no formal crisis management system for the food protection in the surveyed companies and employees are only informed of what to do in case of an emergency.

  13. Calibration of a Credit Rating Scale for Polish Companies

    Directory of Open Access Journals (Sweden)

    Aleksandra Wójcicka

    2012-01-01

    Full Text Available Increasing number of bankruptcy announcements means that even greater attention is being paid to the correct evaluation of the probability of default (PD and decisions made on the basis of it. Reliable estimation of the likelihood of a company's bankruptcy reduces risk, not only for the company itself but also for all co-operating companies and financial institutions. The financial crisis has led to a tightening up of the conditions for gaining finance from banks. However, it is not only the evaluation of PD itself that is so important but also the correct classification of companies according to their PD level ("good" or "bad" companies. There is very little consideration about possible adjustments of the credit risk scale, as usually the American scale is adopted with no changes which seems incorrect.This paper stresses the importance of correct calibration of the credit rating scale. It should not be assumed (as it was in the past that once a scale is defined it remains fixed and independent of the country. Therefore, the research carried out on Polish companies shows that the credit rating scale should be changed and the default point (i.e. "cut-off" point should be higher than in the past. The author uses a modified classification matrix based on the probability of default. The paper compares the classification of quoted Polish companies according to their credit risk level (PD with the actual occurrence of default when various default "cut-off" points are used. (original abstract

  14. Endogenous or exogenous origin of vaginal candidiasis in Polish women?

    Science.gov (United States)

    Mnichowska-Polanowskai, Magdalena; Wojciechowska-Koszko, Iwona; Klimowicz, Bogumia; Szymaniak, Ludmia; Krasnodebska-Szponder, Barbara; Szych, Zbigniew; Giedrys-Kalemba, Stefania

    2013-01-01

    Vaginal candidiasis is a common problem of clinical practice. Many studies have been conducted to explain its origin but only a few have included Polish women. The aim of the study was to determine the prevalence and similarity of oral, anal and vaginal Candida albicans strains isolated from Polish women with vaginal candidiasis. The study involved 20 from 37 recruited women. Swab samples were collected from their vagina, anus, and oral cavity at two-month intervals. All the women were treated with nystatin. Yeast were recovered and identified by the germ-tube test, API /Vitek system, typed by API ZYM and RAPD-PCR. Chi-square test was used to analyze the data. A total of 170 Candida albicans isolates were recovered from 180 samples collected 3 times from 3 sites of 20 women. Positive yeast vaginal cultures were found in all patients before administration of nystatin. Vaginal yeast recovery rate was decreased statistically significant in both follow-up visits (p= 0.001; p= 0.003). The same and different genotypes/biotypes were found concomitantly in a few body sites and/ or repeatedly at time interval from the same body site. The results support the concept of dynamic exchange of yeast within one woman and endogenous or exogenous origin of vaginal candidiasis.

  15. WHAT MOTIVATES POLISH COMMUNITY PHARMACISTS TO PURSUIT OF POSTGRADUATE EDUCATION?.

    Science.gov (United States)

    Jasinska-Stroschein, Magdalena; Kurczewska, Urszula; Orszulak-Michalak, Daria

    2017-03-01

    Due to increasing importance of the advisory role for physicians and patients played by the pharmacist over the last decade, it seems appropriate to evaluate if and why pharmacists are interested in postgraduate medical education. The purpose of the study was to develop and validate an instrument to assess such motives, with special interest to Polish community pharmacists. A self-administered questionnaire was completed by a sample of participants of community pharmacist specialization programs and it was analyzed in relation to participants of other postgraduate courses. They were asked to rank their motives on a Likert-like scale and the underlying dimensions for study motives were identified using exploratory and confirmatory techniques. The reasons for taking specialization for community pharmacists were similar as compared to participants of other postgraduate studies. However, the autotelic factor was not so strong and the crucial reason was that such postgraduate training was required to be promoted in work. Basing on Polish results, we propose the division of motives into three groups - autotelic, instrumental and coincidental. The validated self-administered questionnaire based on this division displayed acceptable construct validity and internal consistency, and therefore can be proposed as an example tool to assess the particular motives and expectations of potential postgraduate students and employees in the pharmaceutical job market. The promotion of postgraduate education among pharmacists can improve the quality of pharmaceutical service.

  16. Evaluation of Rock Bolt Support for Polish Hard Rock Mines

    Science.gov (United States)

    Skrzypkowski, Krzysztof

    2018-03-01

    The article presents different types of rock bolt support used in Polish ore mining. Individual point resin and expansion rock bolt support were characterized. The roof classes for zinc and lead and copper ore mines were presented. Furthermore, in the article laboratory tests of point resin rock bolt support in a geometric scale of 1:1 with minimal fixing length of 0.6 m were made. Static testing of point resin rock bolt support were carried out on a laboratory test facility of Department of Underground Mining which simulate mine conditions for Polish ore and hard coal mining. Laboratory tests of point resin bolts were carried out, especially for the ZGH Bolesław, zinc and lead "Olkusz - Pomorzany" mine. The primary aim of the research was to check whether at the anchoring point length of 0.6 m by means of one and a half resin cartridge, the type bolt "Olkusz - 20A" is able to overcome the load.The second purpose of the study was to obtain load - displacement characteristic with determination of the elastic and plastic range of the bolt. For the best simulation of mine conditions the station steel cylinders with an external diameter of 0.1 m and a length of 0.6 m with a core of rock from the roof of the underground excavations were used.

  17. Historical Roots of Generalized Trust in Polish Society

    Directory of Open Access Journals (Sweden)

    Borowiecki Łukasz

    2014-11-01

    Full Text Available The article analyses how historical events shape generalized trust in contemporary Polish society. The analysis consists of a set of logistic regression models. The impact of historical variables is controlled for age, sex, education and the size of the municipality. This is the first quantitative study on Poland that links historical events with the current levels of trust among Polish citizens. The common knowledge is that the Partitions of Poland had negative impact on trust. Literature on the topic hints that historical demo? graphics should play a role too. The findings suggest that Partitions had little impact with only Greater Poland and Pomerania having lower levels of generalized trust. Historical literacy rate and the presence of Ukrainian or Belarusian population are negatively associated with generalized trust while the abrupt migrations after the World War I are positively associated. The rapid character of migration is supposed to positively impact generalized trust by forcing individuals to cooperate and rely on people with whom they have no personal ties.

  18. Evaluation of landslide monitoring in the Polish Carpathians

    Science.gov (United States)

    Collins, Brian D.; Baum, Rex L.; Mrozek, Teresa; Nescieruk, Piotr; Perski, Zbigniew; Raczkowski, Wojciech; Graniczny, Marek

    2011-01-01

    In response to the June 15, 2010 request from the Polish Geological Institute (PGI) to the U.S. Geological Survey (USGS) for assistance and advice regarding real-time landslide monitoring, landslide specialists from the USGS Landslide Hazard Program visited PGI headquarters and field sites in September 2010. During our visit we became familiar with characteristics of landslides in the Polish Carpathians, reviewed PGI monitoring techniques, and assessed needs for monitoring at recently activated landslides. Visits to several landslides that are monitored by PGI (the Just, Hańczowa, Szymbark, Siercza and Łasńica landslides) revealed that current data collection (monthly GPS and inclinometer surveys, hourly piezometers readings) is generally sufficient for collecting basic information about landslide displacement, depth, and groundwater conditions. Large landslides are typically hydrologically complex, and we would expect such complexity in Carpathian landslides, given the alternating shale and sandstone stratigraphy and complex geologic structures of the flysch bedrock. Consequently groundwater observations could be improved by installing several piezometers that sample the basal shear zone of each landslide being monitored by PGI. These could be supplemented by additional piezometers at shallower depths to help clarify general flow directions and hydraulic gradients. Remedial works at Hańczowa

  19. Pertussis outbreak in Polish shooters with adverse event analysis

    Directory of Open Access Journals (Sweden)

    Monika Skrzypiec-Spring

    2017-04-01

    Full Text Available In addition to different injuries, infections are the most common reason for giving up training altogether or reducing its volume and intensity, as well as a lack of opportunities to participate in sports competitions. Nowadays, a slow but constant re‑emergence of pertussis, especially among teenagers and young adults, including athletes, can be observed. This paper describes an outbreak of pertussis among professional Polish shooters, focusing on the transmission of Bordetella pertussis infection between members of the national team, its influence on performance capacity and adverse event analysis. From 9 June, 2015 to 31 July, 2015, a total of 4 confirmed and suspected cases of pertussis were reported among members of the Polish Sport Shooting National Team, their relatives and acquaintances. Pertussis significantly decreased exercise performance of the first athlete, a 35-year-old woman, interrupted her training, and finally resulted in failure to win a medal or quota place. Pertussis also significantly decreased performance of the second athlete, a 25-year-old shooter. The other cases emerged in their families. Whooping cough is a real threat to athletes and should be prevented. Preventive measures include appropriate immunization, constant medical supervision, as well as early isolation, diagnostic tests and treatment of all infected sport team members. Regular administration of booster doses of the acellular pertussis vaccine (Tdpa every 5 years seems reasonable.

  20. Five Martyr Brothers. First Polish hermits and their worship

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    Kinga Blaschke

    2016-12-01

    Full Text Available Brothers Benedict and John, students of Romuald, came to Poland at the invitation of Otto III to convert pagans. Soon the Italian hermits were joined by Polish brothers Isaac and Matthew, who helped them in learning the Slavic language. The hermits, as well as Christinus, well killed in 1003 by thugs who wanted to steal money given by Duke Boleslav to an expedition to Rome, which was aimed at obtaining papal consent for conducting missionary work. Although the hermits died as victims of a robbery, killed by fellow Christians, the pope canonized them as martyrs. Their lives are relatively well-documented: the earliest and the most credible story of the five brothers by Bruno of Querfurt was written as early as five years after their death, although remained unknown until 1883. Another early account is the life of St. Romuald by Piotr Damiani of 1041. The martyrs have been also associated with yet another mysterious work – a gravestone unearthed in 1959 at the external wall of the north Roman apse of the Gniezno Cathedral, considered by most researchers the oldest epigraphic item on the Polish soil. However, the identification of the warriors mentioned in the inscription with 11th century martyrs raises many doubts. The article discusses the above matters, as well as the subject of the development of the worship of the martyr brothers.

  1. The Minister Council decree about conditions for to bring into the Polish customs area, to take away from the Polish customs area, and to transit through this area nuclear materials, radioactive sources and device including such sources

    International Nuclear Information System (INIS)

    Miller, L.

    2002-01-01

    The decree refers to conditions for to bring into the Polish customs area, to take away from the Polish customs area, and to transit through this area nuclear materials, radioactive sources and devices containing such sources

  2. Multifactorial analysis of fatigue scale among nurses in Poland

    Directory of Open Access Journals (Sweden)

    Kwiecień-Jaguś Katarzyna

    2016-01-01

    Full Text Available Significant progress in the field of nursing has contributed to the widening of range of functions and professional duties of nurses. More frequent lack of nursing personnel has an impact on negative reception of work, it decreases sense of professional satisfaction and increases the level of burden and fatigue. Methods. The study applied the non-experimental method – a descriptive comparative study without a control group. The data was collected on the basis of Polish-language version of a Japanese questionnaire. In order to evaluate the level of physical fatigue the pedometer was used. Results.158 respondents of a group of 160 were included in the statistical analysis. The study group was internally diversified. The research project assessed the usefulness of the multifactorial analysis in evaluating the main components of nursing fatigue. Multifactorial analysis has shown that mental fatigue concentrated with changes in activeness, motivation and physical fatigue are strongly correlated with age, professional experience and education. Conclusion. Nursing is a profession of a special character and mission. Regardless of the place of work, nursing staff should be given the possibility of pursuing their profession under conditions ensuring the sense of security and protecting them from harmful effects on health.

  3. Is hypochondriasis a significant problem among polish adolescents? An attempt of assessment of severe form of health anxiety in polish population

    Directory of Open Access Journals (Sweden)

    Janusz Kocjan

    2017-08-01

    [Conclusions] The study provides evidence about moderate intensification of health anxiety among polish adolescent. Health anxiety level was significantly higher among medical students versus non-medical students group.

  4. 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.

  5. Alcohol consumption in Polish middle and high school pupils – has this rapidly increased during 2009–11?

    Directory of Open Access Journals (Sweden)

    Paulina Wojtyła-Buciora

    2014-09-01

    Full Text Available [b]Introduction.[/b] The dynamic rise of alcohol consumption in adolescents is a matter of serious concern, requiring frequently updated monitoring. By such means, it is possible to optimise preventative measures for dealing with this problem. [b]Objective[/b]. To estimate the magnitude/amount and frequency of alcohol consumed by middle and high school pupils in Poland, including the circumstances when alcohol was first drunk. [b]Materials and Methods[/b]. A randomised survey was performed throughout Poland on middle school (junior high school pupils, (n=9360 in 2009, followed by both middle and high school pupils in 2011 (n=7971. The questionnaire was devised by the Polish Chief Sanitary Inspectorate (GIS. [b]Results[/b]. A strikingly sharp increase in alcohol consumption (29% was observed in subjects between 2009 – 2011. In the latter year, 1 month prior to survey, respectively, 50% and 71% of middle school and high school pupils drank alcohol, and correspondingly, 36% and 63% of these pupils ever became intoxicated/drunk. [b]Conclusions[/b]. 1 Adolescent alcohol consumption increases with age and is highest in girls. Monitoring as well as in-depth analysis thus becomes necessary. 2 Systematic monitoring and analysis of changing healthy lifestyle behaviour should be used for taking the necessary corrective action. This should happen concurrently and consist of planned health education programmes, including health promotion.

  6. A novel vibration assisted polishing device based on the flexural mechanism driven by the piezoelectric actuators

    Directory of Open Access Journals (Sweden)

    Guilian Wang

    2018-01-01

    Full Text Available The vibration assisted polishing has widely application fields because of higher machining frequency and better polishing quality, especially the polishing with the non-resonant mode that is regarded as a kind of promising polishing method. This paper reports a novel vibration assisted polishing device, consisting of the flexible hinge mechanism driven by the piezoelectric actuators, which is suitable for polishing planes or curve surfaces with slow curvature. Firstly, the generation methods of vibration trajectory are investigated for the same frequency and different frequency signals’ inputs, respectively, and then the types of elliptic and Lissajous’s vibration trajectories are generated respectively. Secondly, a flexural mechanism consisting of the right circular flexible hinges and the leaf springs is developed to produce two-dimensional vibration trajectory. Statics and dynamics investigating of this flexible mechanism are finished in detail. The analytical models about input and output compliances of the flexural mechanism are established according to the matrix-based compliance modeling, and the dynamic model of the flexural mechanism based on the Euler-Lagrange equation is also presented. The finite element model of the flexural mechanism was established to carry out the numerical simulation in order to testify the rationality of device design. Finally, the polishing experiment is carried out to prove the effectiveness of the vibration device. The experimental results show that this novel vibration assisted polishing device developed in this study can remove more effectively the cutting marks left by last process and obviously reduce the workpiece surface roughness.

  7. The beginnings of the reception of Ludwik Fleck’s ideas in Polish (1936-1989

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    Paweł Jarnicki

    2016-12-01

    Full Text Available The article discusses the beginnings of the reception of Ludwik Fleck’s theory of thought styles and thought collectives in Polish, from his first polemics with Izydora Dąmbska in 1936 to the first edition of the Polish translation of Entstehung und Entwicklung

  8. Are Polish Primary School Pupils in Favor of Wearing Uniforms? Snapshot Comment

    Science.gov (United States)

    Asotska, Julia; Butler, Norman L.; Davidson, Barry S.; Griffith, Kimberly Grantham; Brown, Veda E.; Kritsonis, Wiilliam Allan

    2007-01-01

    The purpose of this article is to discuss whether Polish primary school pupils want to wear uniforms, and it is motivated by the Polish government's recently proposed policy: Zero Tolerance for Violence at School. Seventy one pupils, who attend Podstawowka Nr30 school in Cracow, were surveyed, and the authors found that most pupils are not in…

  9. The place of polish in the multilingual space of the European Union

    Directory of Open Access Journals (Sweden)

    T. I. Neprytska

    2015-03-01

    Full Text Available The article studies the position of the Polish language in the multilingual space of the European Union and determines the key factors which facilitate its gaining popularity and spreading in Europe. A large territory and population determine the significant presence of Polish in the European Union. Intense economic development facilitates popularization of learning and using Polish in the business medium, however, English was and still remains the dominating language of business. Active work of the state on improving the reputation of the country abroad, civilizational (value­based unity with other nations of the EU, favorable geographical position, common Indo­European roots of Germanic, Romanic and Slavonic  languages as well as usage of the Latin type create favorable conditions for the development and popularization of Polish on the territory of the EU. The article also mentions a number of concerns, which are rooted in the historical past of a dependent or semi­dependent existence of the Polish people, namely, the existence of the Polish and culture in the shade of German and Russian culture space, the negative international image of modern Poland, which was formed at the beginning of the 1990­s, the low level of Europeans’ familiarization with the Polish culture, absence of popularity and economic necessity of learning Polish abroad.

  10. Mathematical modelling of a self-polishing antifouling paint exposed to seawater: A parameter study

    DEFF Research Database (Denmark)

    Kiil, Søren; Pedersen, M. S.; Dam-Johansen, Kim

    2002-01-01

    , and to suggest ways of controlling biocide release rates. A case study with an antifouling paint based on the well-known tributyltin self-polishing copolymer system showed that the rate of paint polishing was influenced, to various degrees, by the following parameters: seawater pH and concentration of Na...

  11. The effect of European integration on exchange rate dependence: the Polish accession to the EU

    NARCIS (Netherlands)

    Thiel, J.H.; van Giersbergen, N.P.A.

    2010-01-01

    This paper investigates the effect of the Polish accession to the European Union (EU) on the dependence between the euro-US dollar and Polish zloty-US dollar exchange rate. The dependence is estimated by means of copulas as suggested by Patton (2006). This approach allows to first specify and

  12. Effect of One-Step and Multi-Steps Polishing System on Enamel Roughness

    Directory of Open Access Journals (Sweden)

    Cynthia Sumali

    2013-07-01

    Full Text Available Normal 0 false false false MicrosoftInternetExplorer4 The final procedures of orthodontic treatment are bracket debonding and cleaning the remaining adhesive. Multi-step polishing system is the most common method used. The disadvantage of that system is long working time, because of the stages that should be done. Therefore, dental material manufacturer make an improvement to the system, to reduce several stages into one stage only. This new system is known as one-step polishing system. Objective: To compare the effect of one-step and multi-step polishing system on enamel roughness after orthodontic bracket debonding. Methods: Randomized control trial was conducted included twenty-eight maxillary premolar randomized into two polishing system; one-step OptraPol (Ivoclar, Vivadent and multi-step AstroPol (Ivoclar, Vivadent. After bracket debonding, the remaining adhesive on each group was cleaned by subjective polishing system for ninety seconds using low speed handpiece. The enamel roughness was subjected to profilometer, registering two roughness parameters (Ra, Rz. Independent t-test was used to analyze the mean score of enamel roughness in each group. Results: There was no significant difference of enamel roughness between one-step and multi-step polishing system (p>0.005. Conclusion: One-step polishing system can produce a similar enamel roughness to multi-step polishing system after bracket debonding and adhesive cleaning.DOI: 10.14693/jdi.v19i3.136

  13. Microstructure of pulsed-laser deposited PZT on polished and annealed MGO substrates

    NARCIS (Netherlands)

    King, S.L.; Coccia, L.G.; Gardeniers, Johannes G.E.; Boyd, I.W.

    1996-01-01

    Thin films of Lead-Zirconate-Titanate (PZT) have been grown by pulsed-laser-deposition (PLD) onto polished MgO substrates both with and without pre-annealing. The surface morphology of polished MgO substrates, which are widely used for deposition, is examined by AFM. Commercially available,

  14. Word Boundaries in L2 Speech: Evidence from Polish Learners of English

    Science.gov (United States)

    Schwartz, Geoffrey

    2016-01-01

    Acoustic and perceptual studies investgate B2-level Polish learners' acquisition of second language (L2) English word-boundaries involving word-initial vowels. In production, participants were less likely to produce glottalization of phrase-medial initial vowels in L2 English than in first language (L1) Polish. Perception studies employing word…

  15. 'Polished' cinema : Over de receptie van het werk van Andrzej Kondratiuk in Polen en het groteske

    NARCIS (Netherlands)

    Gusc, I.

    2012-01-01

    Despite being brutally slated at times, Andrzej Kondratiuk’s films were also often admired and praised by Polish film critics. Their inability to uniformly categorise and value Kondratiuk’s highly unconventional work has led to him being set aside, and labelled as, a ‘separate’ filmmaker in Polish

  16. Development of a multisensory arm for process monitoring in Robot Assisted Polishing

    DEFF Research Database (Denmark)

    Pilny, Lukas; Dalla Costa, Giuseppe; Bissacco, Giuliano

    2015-01-01

    A multisensory polishing arm with integrated three component force sensor, a miniature acoustic emission (AE) sensor and an accelerometer was developed for process monitoring in Robot Assisted Polishing (RAP) process. The arm design was optimized for integration of a force and an AE sensor. The f...

  17. OSSM2008 Polish Moessbauer Community Meeting: Program, Abstracts and List of Participants

    International Nuclear Information System (INIS)

    2008-01-01

    The Polish Moessbauer Community Meeting - OSSM2008 has been organized by Polish scientists using the Moessbauer spectroscopy in their research. Main subjects of the meeting are investigations of modern materials electronic structure by means of Moessbauer effect (ME), using ME in biological test of tissue diseases and ME investigation of physical properties of different steels

  18. Holocaust Education in Polish Public Schools: Between Remembrance and Civic Education

    Science.gov (United States)

    Milerski, Boguslaw

    2010-01-01

    This article analyzes the historical and political context of Holocaust education, and its implementation in Polish schools. Perceptions of the Holocaust continue to change, influenced by Poland's social and political situation. The Polish historical context is quite specific; it includes the long history of Poles and Jews as neighbors, with local…

  19. Effect finishing and polishing procedures on the surface roughness of IPS Empress 2 ceramic.

    Science.gov (United States)

    Boaventura, Juliana Maria Capelozza; Nishida, Rodrigo; Elossais, André Afif; Lima, Darlon Martins; Reis, José Mauricio Santos Nunes; Campos, Edson Alves; de Andrade, Marcelo Ferrarezi

    2013-01-01

    To evaluate the surface roughness of IPS Empress 2 ceramic when treated with different finishing/polishing protocols. Sixteen specimens of IPS Empress 2 ceramic were made from wax patterns obtained using a stainless steel split mold. The specimens were glazed (Stage 0-S0, control) and divided into two groups. The specimens in Group 1 (G1) were finished/polished with a KG Sorensen diamond point (S1), followed by KG Sorensen siliconized points (S2) and final polishing with diamond polish paste (S3). In Group 2 (G2), the specimens were finished/polished using a Shofu diamond point (S1), as well as Shofu siliconized points (S2) and final polishing was performed using Porcelize paste (S3). After glazing (S0) and following each polishing procedure (S1, S2 or S3), the surface roughness was measured using TALYSURF Series 2. The average surface roughness results were analyzed using ANOVA followed by Tukey post-hoc tests (α = 0.01) RESULTS: All of the polishing procedures yielded higher surface roughness values when compared to the control group (S0). S3 yielded lower surface roughness values when compared to S1 and S2. The proposed treatments negatively affected the surface roughness of the glazed IPS Empress 2 ceramic.

  20. Polish Foreign Trade: The Quality Catch-up and the Influence of Foreign Direct Investments

    DEFF Research Database (Denmark)

    Nielsen, Jørgen Ulff-Møller

    2000-01-01

    This paper investigates how the Polish transition process has expressed itself in export and inward foreign direct investments (FDI), and the relations between export and FDI. Since 1988, the number of Polish products able to compee in export markets has steadily increased. The quality level...

  1. Efficacy of polishing kits on the surface roughness and color stability ...

    African Journals Online (AJOL)

    Objective: Different polishing kits may have different effects on the composite resin surfaces. The aim of this study was to evaluate the surface roughness and color stability of four different composites which was applied different polishing technique. Materials and Methods: Thirty specimens were made for each composite ...

  2. Wear characteristics of polished and glazed lithium disilicate ceramics opposed to three ceramic materials.

    Science.gov (United States)

    Saiki, Osamu; Koizumi, Hiroyasu; Akazawa, Nobutaka; Kodaira, Akihisa; Okamura, Kentaro; Matsumura, Hideo

    2016-01-01

    This study compared the wear characteristics of a heat-pressed lithium disilicate ceramic material opposed to feldspathic porcelain, a lithium disilicate glass ceramic, and zirconia materials. Ceramic plate specimens were prepared from feldspathic porcelain (EX-3 nA1B), lithium disilicate glass ceramics (e.max CAD MO1/C14), and zirconia (Katana KT 10) and then ground or polished. Rounded rod specimens were fabricated from heat-pressed lithium disilicate glass ceramic (e.max press LT A3) and then glazed or polished. A sliding wear testing apparatus was used for wear testing. Wear of glazed rods was greater than that of polished rods when they were abraded with ground zirconia, ground porcelain, polished porcelain, or polished lithium disilicate ceramics. For both glazed and polished rods, wear was greater when the rods were abraded with ground plates. The findings indicate that application of a polished surface rather than a glazed surface is recommended for single restorations made of heat-pressed lithium disilicate material. In addition, care must be taken when polishing opposing materials, especially those used in occlusal contact areas. (J Oral Sci 58, 117-123, 2016).

  3. Fighting alcoholism among railway workers in the light of early 20th Century Polish-language temperance publications

    Directory of Open Access Journals (Sweden)

    Izabela Krasińska

    2016-12-01

    Discussion and conclusions: The Polish-language temperance periodicals provide, among other things, valuable information referring to as yet unknown though essential problem of fighting alcoholism among railway workers in Europe, USA and the Polish territories of the Three Partitions.

  4. 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 ...

  5. A consistent course of events or a series of coincidences: nursing in Poland from the 19(th) to the 21(st) century.

    Science.gov (United States)

    Majda, Anna; Ziarko, Ewa; Zalewska-Puchała, Joanna

    2015-12-01

    The development of nursing began in Poland much later than it did elsewhere, for instance in the United Kingdom, the United States, or Germany, and it came up against difficult conditions. After a brief twenty-year period of development between 1918 and 1939, it almost stalled during the war (1939-45), only to be followed by nearly twenty years of chaos. Nursing started to come out of this difficult period at the beginning of the 1960s. The turn of the 21st century saw the emergence of extensive professional development and training opportunities for nurses. This change was brought about as much by political, social and economic issues, health care requirements, and the advancement of science, medicine, the birth of humanitarism, the growth of the feminist movement, the European Agreement on the Instruction and Education of Nurses, the WHO European Strategy for Nursing and Midwifery Education, the Bologna declaration, as well as the activities undertaken by the European Union, the International Council of Nurses, the American and Polish Red Cross, the Rockefeller Foundation, the Polish Association of Nurses, and the professional self-governing body. The transformation of nursing into an independent profession was further boosted by physicians deeply involved in the issue and female pioneers of nursing. © 2015 John Wiley & Sons Ltd.

  6. Multi-objective optimization of circular magnetic abrasive polishing of SUS304 and Cu materials

    Energy Technology Data Exchange (ETDEWEB)

    Nguyen, NhatTan; Yin, ShaoHui; Chen, FengJun; Yin, HanFeng [Hunan University, Changsha (China); Pham, VanThoan [Hanoi University, Hanoi (Viet Nam); Tran, TrongNhan [Industrial University of Ho Chi Minh City, HCM City (Viet Nam)

    2016-06-15

    In this paper, a Multi-objective particle swarm optimization algorithm (MOPSOA) is applied to optimize surface roughness of workpiece after circular magnetic abrasive polishing. The most important parameters of polishing model, namely current, gap between pole and workpiece, spindle speed and polishing time, were considered in this approach. The objective functions of the MOPSOA depend on the quality of surface roughness of polishing materials with both simultaneous surfaces (Ra1, Ra2), which are determined by means of experimental approach with the aid of circular magnetic field. Finally, the effectiveness of the approach is compared between the optimal results with the experimental data. The results show that the new proposed polishing optimization method is more feasible.

  7. Long Distance Solidarity: Polish Public Opinion and the Boer War 1899–1902

    Directory of Open Access Journals (Sweden)

    Szlanta Piotr

    2017-06-01

    Full Text Available The bloody conflict which was taking place in South Africa in the years 1899-1902 was followed with a great interest by Polish public opinion. Its greatest part strongly sympathized with the Boer republics. Their burgers were idealized and presented by the Polish press as brave fighters for independence, who dared to stand up against the world empire to defend their rights while Great Britain was attributed full responsibility for the outbreak of the war. For many Poles the Boers personified the general idea of freedom fighters and symbolized all suppressed nations. Their sad fate seemed to be quite similar to the Polish one and this similarity was the main source of sympathy toward defenders of the Transvaal and Free Orange State. Voices of few Polish intellectuals, who called for a more objective and not so emotional view on the war, could not change the pro-Boers stance of the greatest part of Polish public opinion.

  8. Polishing and toothbrushing alters the surface roughness and gloss of composite resins.

    Science.gov (United States)

    Kamonkhantikul, Krid; Arksornnukit, Mansuang; Takahashi, Hidekazu; Kanehira, Masafumi; Finger, Werner J

    2014-01-01

    This study aimed to investigate the surface roughness and gloss of composite resins after using two polishing systems and toothbrushing. Six composite resins (Durafill VS, Filtek Z250, Filtek Z350 XT, Kalore, Venus Diamond, and Venus Pearl) were evaluated after polishing with two polishing systems (Sof-Lex, Venus Supra) and after toothbrushing up to 40,000 cycles. Surface roughness (Ra) and gloss were determined for each composite resin group (n=6) after silicon carbide paper grinding, polishing, and toothbrushing. Two-way ANOVA indicated significant differences in both Ra and gloss between measuring stages for the composite resins tested, except Venus Pearl, which showed significant differences only in gloss. After polishing, the Filtek Z350 XT, Kalore, and Venus Diamond showed significant increases in Ra, while all composite resin groups except the Filtek Z350 XT and Durafill VS with Sof-Lex showed increases in gloss. After toothbrushing, all composite resin demonstrated increases in Ra and decreases in gloss.

  9. Polish Adult Reading Test (PART) - construction of Polish test for estimating the level of premorbid intelligence in schizophrenia.

    Science.gov (United States)

    Karakuła-Juchnowicz, Hanna; Stecka, Mariola

    2017-08-29

    In view of unavailability in Poland of the standardized methods to measure PIQ, the aim of the work was to develop a Polish test to assess the premorbid level of intelligence - PART(Polish AdultReading Test) and to measureits psychometric properties, such as validity, reliability as well as standardization in the group of schizophrenia patients. The principles of PART construction were based on the idea of popular worldwide National Adult Reading Test by Hazel Nelson. The research comprised a group of 122 subjects (65 schizophrenia patients and 57 healthy people), aged 18-60 years, matched for age and gender. PART appears to be a method with high internal consistency and reliability measured by test-retest, inter-rater reliability, and the method with acceptable diagnostic and prognostic validity. The standardized procedures of PART have been investigated and described. Considering the psychometric values of PART and a short time of its performance, the test may be a useful diagnostic instrument in the assessment of premorbid level of intelligence in a group of schizophrenic patients.

  10. POLYMORPHISM OF PROLACTIN RECEPTOR GENE (PRLR IN THE POLISH LANDRACE AND POLISH LARGE WHITE SWINE POPULATION AND REPRODUCTIVE TRAITS

    Directory of Open Access Journals (Sweden)

    AGATA ZIÓŁKOWSKA

    2011-01-01

    Full Text Available Prolactin receptor gene was found in pig chromosome 16, and it is one of the genes with a significant effect on reproduction traits in sows. The objective of the research was to determine polymorphism of the prolactin receptor gene in pigs of two maternal breeds: Polish Landrace and Polish Large White, as well as analyse relations between particular allelomorphic variants, and reproduction traits of examined sows. Two PRLR gene alleles, A and B, were isolated, they were obtained after AluI restriction gene digestion of the PCR product with the length of 163 bp; furthermore, three genotypes were identified: PRLRAA – 85, 59, 19 bp; PRLRAB – 104, 85, 59, 19 bp; PRLRBB – 104, 59 bp. We assessed 122 sows, in terms of their age at the first farrowing, as well as the sizes of the two subsequent litters. No statistically significant differences were found in the examined reproduction traits in sows with different allelomorphic relations, both within each breed and between breeds. Obtained results indicate that it is necessary to conduct further research on a larger animal group.

  11. Are physicians strikes ever morally justifiable? A call for a return to tradition

    Directory of Open Access Journals (Sweden)

    Munyaradzi Mawere

    2010-08-01

    Full Text Available Though physicians strike provides an opportunity to generate more knowledge about the process in which legitimacy of an organization can be restored, it meets with a great deal of resistance not only by the public but from within the medical profession. This paper critically examines the legitimacy of strike by medical doctors heretofore referred to as physicians. Though critically reflecting on strikes of physicians in general, the paper makes more emphasis on Africa where physician strikes are rampant. More importantly, the paper argues that strike implies a failure for everyone in the organization (including the strikers themselves, not only the responsible government or authority. This is because when a strike occurs, an organization/fraternity is subjected to questions, scrutiny and slander. It becomes difficult to decouple what is said, decided and done. Traditionally, all medical fraternities the world-over are committed to acting comfortably to external demands- guaranteeing the patients lives and public health. By paying attention to external reactions, the medical fraternity adapts and learns what ought and should be done so that it is never again caught in the same messy. At the same time, the fraternity prepares itself for the future strikes. When the fraternity and those outside consider it is doing up to the external expectations, its lost legitimacy is restored. When legitimacy is restored, external pressure like once disturbed water returns to normal

  12. Independent effects of step length and foot strike pattern on tibiofemoral joint forces during running.

    Science.gov (United States)

    Bowersock, Collin D; Willy, Richard W; DeVita, Paul; Willson, John D

    2017-10-01

    The purpose of this study was to examine the effects of step length and foot strike pattern along with their interaction on tibiofemoral joint (TFJ) and medial compartment TFJ kinetics during running. Nineteen participants ran with a rear foot strike pattern at their preferred speed using a short (-10%), preferred, and long (+10%) step length. These step length conditions were then repeated using a forefoot strike pattern. Regardless of foot strike pattern, a 10% shorter step length resulted in decreased peak contact force, force impulse per step, force impulse per kilometre, and average loading rate at the TFJ and medial compartment, while a 10% increased step length had the opposite effects (all P forefoot strike pattern significantly lowered TFJ and medial compartment TFJ average loading rates compared with a rear foot strike pattern (both forefoot strike pattern produced the greatest reduction in peak medial compartment contact force (P < 0.05). Knowledge of these running modification effects may be relevant to the management or prevention of TFJ injury or pathology among runners.

  13. Acute changes in foot strike pattern and cadence affect running parameters associated with tibial stress fractures.

    Science.gov (United States)

    Yong, Jennifer R; Silder, Amy; Montgomery, Kate L; Fredericson, Michael; Delp, Scott L

    2018-05-18

    Tibial stress fractures are a common and debilitating injury that occur in distance runners. Runners may be able to decrease tibial stress fracture risk by adopting a running pattern that reduces biomechanical parameters associated with a history of tibial stress fracture. The purpose of this study was to test the hypothesis that converting to a forefoot striking pattern or increasing cadence without focusing on changing foot strike type would reduce injury risk parameters in recreational runners. Running kinematics, ground reaction forces and tibial accelerations were recorded from seventeen healthy, habitual rearfoot striking runners while running in their natural running pattern and after two acute retraining conditions: (1) converting to forefoot striking without focusing on cadence and (2) increasing cadence without focusing on foot strike. We found that converting to forefoot striking decreased two risk factors for tibial stress fracture: average and peak loading rates. Increasing cadence decreased one risk factor: peak hip adduction angle. Our results demonstrate that acute adaptation to forefoot striking reduces different injury risk parameters than acute adaptation to increased cadence and suggest that both modifications may reduce the risk of tibial stress fractures. Copyright © 2018 Elsevier Ltd. All rights reserved.

  14. Collective Labor Disputes and Strikes in Russia: The Impact of Judicial Precedents and Enforcement

    Directory of Open Access Journals (Sweden)

    Elena Gerasimova

    2017-01-01

    Full Text Available The right to strike is recognized in the Constitution and the Labor Code of the Russian Federation as a means to resolve collective labor disputes. However, in Russia labor protests come up for discussion much more frequently than strikes. In recent years the number of labor protests in Russia, including various forms of work stoppage, has increased significantly compared to previous years, but the number of legally constituted collective labor disputes and strikes has remained very low. The legislation on resolution of collective labor disputes and mounting strikes is quite restrictive in Russia, and its enforcement also encourages employees to seek alternative ways to settle collective labor conflicts. There is little empirical research on the judicial implementation of these norms and its influence on the enforcement of legislation. Therefore, this paper analyses the reasoning of courts in cases on the legality of strikes, their interpretations of the law, and the impact these decisions have on the enforcement of the legislation on resolution of collective labor disputes and strikes. Our conclusion is that the courts act as another restrictive influence on the resolution of collective labor disputes and the exercise of the right to strike in Russia.

  15. 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.

  16. Exposure of Nurses to Electromagnetic Fields

    International Nuclear Information System (INIS)

    Zmyslony, M.; Mamrot, P.; Politanski, P.

    2004-01-01

    Devices that produce electromagnetic fields (EMF) within the range of 0-300 GHz are widely used in surgical and diagnostic procedures. As a result a large number of physicians and other groups of medical personnel may be exposed to EMF. Even if patients' exposure, sometimes quite high, is inevitable or even recommended, medical personnel should be substantially protected against EMF exposure. Evaluation of nurses' exposure to EMF was based on an analysis of EMF magnitudes in the surrounding of magnetic resonance imaging (MRI) and electrosurgical units. These two kinds of apparatus are the strongest EMF sources in health service facilities. The measurements were performed according to the norms and hygiene regulations binding in Poland. Measurements performed by the Nofer Institute of Medicine in Lodz, and data collected by the Central Database on EMF Sources were used in the analysis. The Central Database is run by the Nofer Institute of Medicine at the behest of the Chief Sanitary Inspector. The study showed that nurses' exposure to EMF emitted by MRI and electrosurgical units complies with Polish norms and hygiene regulations and can be classified as negligible or allowable. It was found that work of nurses in exposure to EMF emitted by MRI and electrosurgical units can be regarded as safe, which means that their health should not be endangered by the performed job. (author)

  17. Variation in foot strike patterns during running among habitually barefoot populations.

    Science.gov (United States)

    Hatala, Kevin G; Dingwall, Heather L; Wunderlich, Roshna E; Richmond, Brian G

    2013-01-01

    Endurance running may have a long evolutionary history in the hominin clade but it was not until very recently that humans ran wearing shoes. Research on modern habitually unshod runners has suggested that they utilize a different biomechanical strategy than runners who wear shoes, namely that barefoot runners typically use a forefoot strike in order to avoid generating the high impact forces that would be experienced if they were to strike the ground with their heels first. This finding suggests that our habitually unshod ancestors may have run in a similar way. However, this research was conducted on a single population and we know little about variation in running form among habitually barefoot people, including the effects of running speed, which has been shown to affect strike patterns in shod runners. Here, we present the results of our investigation into the selection of running foot strike patterns among another modern habitually unshod group, the Daasanach of northern Kenya. Data were collected from 38 consenting adults as they ran along a trackway with a plantar pressure pad placed midway along its length. Subjects ran at self-selected endurance running and sprinting speeds. Our data support the hypothesis that a forefoot strike reduces the magnitude of impact loading, but the majority of subjects instead used a rearfoot strike at endurance running speeds. Their percentages of midfoot and forefoot strikes increased significantly with speed. These results indicate that not all habitually barefoot people prefer running with a forefoot strike, and suggest that other factors such as running speed, training level, substrate mechanical properties, running distance, and running frequency, influence the selection of foot strike patterns.

  18. Variation in foot strike patterns during running among habitually barefoot populations.

    Directory of Open Access Journals (Sweden)

    Kevin G Hatala

    Full Text Available Endurance running may have a long evolutionary history in the hominin clade but it was not until very recently that humans ran wearing shoes. Research on modern habitually unshod runners has suggested that they utilize a different biomechanical strategy than runners who wear shoes, namely that barefoot runners typically use a forefoot strike in order to avoid generating the high impact forces that would be experienced if they were to strike the ground with their heels first. This finding suggests that our habitually unshod ancestors may have run in a similar way. However, this research was conducted on a single population and we know little about variation in running form among habitually barefoot people, including the effects of running speed, which has been shown to affect strike patterns in shod runners. Here, we present the results of our investigation into the selection of running foot strike patterns among another modern habitually unshod group, the Daasanach of northern Kenya. Data were collected from 38 consenting adults as they ran along a trackway with a plantar pressure pad placed midway along its length. Subjects ran at self-selected endurance running and sprinting speeds. Our data support the hypothesis that a forefoot strike reduces the magnitude of impact loading, but the majority of subjects instead used a rearfoot strike at endurance running speeds. Their percentages of midfoot and forefoot strikes increased significantly with speed. These results indicate that not all habitually barefoot people prefer running with a forefoot strike, and suggest that other factors such as running speed, training level, substrate mechanical properties, running distance, and running frequency, influence the selection of foot strike patterns.

  19. Manipulation of Foot Strike and Footwear Increases Achilles Tendon Loading During Running.

    Science.gov (United States)

    Rice, Hannah; Patel, Mubarak

    2017-08-01

    The Achilles tendon is the most common site of tendon overuse injury in humans. Running with a forefoot strike pattern and in minimal shoes is a topic of recent interest, yet evidence is currently limited regarding the combined influence of foot strike and footwear on Achilles tendon loading. To investigate the influence of both foot strike and footwear on Achilles tendon loading in habitual rearfoot strike runners. Controlled laboratory study. Synchronized kinematic and force data were collected from 22 habitual rearfoot strikers (11 male), who habitually ran in nonminimal running shoes, during overground running at 3.6 m·s -1 . Participants ran in 3 different footwear conditions (standard running shoe, minimal running shoe, and barefoot) with both a rearfoot strike (RFS) and an imposed forefoot strike (FFS) in each footwear condition. Achilles tendon loading was estimated by use of inverse dynamics, where the Achilles tendon moment arm was determined with a regression equation. A 2-way, repeated-measures analysis of variance was used to compare conditions. Achilles tendon impulse was greater when subjects ran with an FFS rather than an RFS in minimal shoes. Achilles tendon loading rates were higher when subjects ran either in minimal shoes or barefoot than in standard shoes, regardless of foot strike. In runners who habitually rearfoot strike in standard running shoes, running in minimal shoes or barefoot increased the rate of tendon loading, and running with a forefoot strike in minimal shoes increased the magnitude of tendon loading. Transitioning to these running conditions may increase the risk of tendinopathy.

  20. Computer-Controlled Cylindrical Polishing Process for Large X-Ray Mirror Mandrels

    Science.gov (United States)

    Khan, Gufran S.; Gubarev, Mikhail; Speegle, Chet; Ramsey, Brian

    2010-01-01

    We are developing high-energy grazing incidence shell optics for hard-x-ray telescopes. The resolution of a mirror shells depends on the quality of cylindrical mandrel from which they are being replicated. Mid-spatial-frequency axial figure error is a dominant contributor in the error budget of the mandrel. This paper presents our efforts to develop a deterministic cylindrical polishing process in order to keep the mid-spatial-frequency axial figure errors to a minimum. Simulation software is developed to model the residual surface figure errors of a mandrel due to the polishing process parameters and the tools used, as well as to compute the optical performance of the optics. The study carried out using the developed software was focused on establishing a relationship between the polishing process parameters and the mid-spatial-frequency error generation. The process parameters modeled are the speeds of the lap and the mandrel, the tool s influence function, the contour path (dwell) of the tools, their shape and the distribution of the tools on the polishing lap. Using the inputs from the mathematical model, a mandrel having conical approximated Wolter-1 geometry, has been polished on a newly developed computer-controlled cylindrical polishing machine. The preliminary results of a series of polishing experiments demonstrate a qualitative agreement with the developed model. We report our first experimental results and discuss plans for further improvements in the polishing process. The ability to simulate the polishing process is critical to optimize the polishing process, improve the mandrel quality and significantly reduce the cost of mandrel production