WorldWideScience

Sample records for flight attendants

  1. Flight Attendant Fatigue: A Quantitative Review of Flight Attendant Comments

    Science.gov (United States)

    2011-10-01

    Hellesoy, 1994; Hunt & Space, 1994; Nagda & Koontz , 2003; Nesthus et al., 2007; Rayman, 1997; Smolensky, Lee, Mott, & Colligan, 1982; Tashkin...www.boeing. com/commercial/cabinair/ventilation.pdf Nagda, N.L., & Koontz , M.D. (2003). Review of studies on flight attendant health and comfort in

  2. Acute symptomatic hyponatremia in a flight attendant.

    Science.gov (United States)

    Madero, Magdalena; Monares, Enrique; Domínguez, Aurelio Méndez; Ayus, Juan Carlos

    2015-08-01

    Acute symptomatic hyponatremia after thiazide diuretic initiation is a medical emergency. Here we describe the case of a flight attendant who developed acute hyponatremia during a flight and the potential risk factors for developing this condition. A 57-year-old flight attendant with history of essential hypertension was recently started on a thiazide diuretic. As she did routinely when working, she increased her water intake during a flight from London to Mexico City. She complained of nausea and headache during the flight. Upon arrival, she developed severe disorientation and presented to the hospital emergency room (ER) with a Glasgow scale of 12, hypoxia, and a generalized tonic clonic seizure. Her laboratory results on arrival were consistent with severe hyponatremia (serum Na 116 mEql/L) and severe cerebral edema by CT scan. She was treated with hypertonic saline, with complete resolution of the neurologic symptoms. We describe high water intake and hypoxia related to decreased partial pressure of oxygen in the cabin as the two main risk factors for thiazide-induced acute hyponatremia in this case.

  3. The occupational health and safety of flight attendants.

    Science.gov (United States)

    Griffiths, Robin F; Powell, David M C

    2012-05-01

    In order to perform safety-critical roles in emergency situations, flight attendants should meet minimum health standards and not be impaired by factors such as fatigue. In addition, the unique occupational and environmental characteristics of flight attendant employment may have consequential occupational health and safety implications, including radiation exposure, cancer, mental ill-health, musculoskeletal injury, reproductive disorders, and symptoms from cabin air contamination. The respective roles of governments and employers in managing these are controversial. A structured literature review was undertaken to identify key themes for promoting a future agenda for flight attendant health and safety. Recommendations include breast cancer health promotion, implementation of Fatigue Risk Management Systems, standardization of data collection on radiation exposure and health outcomes, and more coordinated approaches to occupational health and safety risk management. Research is ongoing into cabin air contamination incidents, cancer, and fatigue as health and safety concerns. Concerns are raised that statutory medical certification for flight attendants will not benefit either flight safety or occupational health.

  4. Flight attendant radiation dose from solar particle events.

    Science.gov (United States)

    Anderson, Jeri L; Mertens, Christopher J; Grajewski, Barbara; Luo, Lian; Tseng, Chih-Yu; Cassinelli, Rick T

    2014-08-01

    Research has suggested that work as a flight attendant may be related to increased risk for reproductive health effects. Air cabin exposures that may influence reproductive health include radiation dose from galactic cosmic radiation and solar particle events. This paper describes the assessment of radiation dose accrued during solar particle events as part of a reproductive health study of flight attendants. Solar storm data were obtained from the National Oceanic and Atmospheric Administration Space Weather Prediction Center list of solar proton events affecting the Earth environment to ascertain storms relevant to the two study periods (1992-1996 and 1999-2001). Radiation dose from exposure to solar energetic particles was estimated using the NAIRAS model in conjunction with galactic cosmic radiation dose calculated using the CARI-6P computer program. Seven solar particle events were determined to have potential for significant radiation exposure, two in the first study period and five in the second study period, and over-lapped with 24,807 flight segments. Absorbed (and effective) flight segment doses averaged 6.5 μGy (18 μSv) and 3.1 μGy (8.3 μSv) for the first and second study periods, respectively. Maximum doses were as high as 440 μGy (1.2 mSv) and 20 flight segments had doses greater than 190 μGy (0.5 mSv). During solar particle events, a pregnant flight attendant could potentially exceed the equivalent dose limit to the conceptus of 0.5 mSv in a month recommended by the National Council on Radiation Protection and Measurements.

  5. Utilising Multimedia ESP Programme in Enhancing Flight Attendants' Safety Knowledge and Problem Solving Skills

    Science.gov (United States)

    Bani-Salameh, Zakaria A.; Kabilan, Muhammad K.; Bani-Salalmeh, Lina

    2011-01-01

    A multimedia English for Specific Purposes (ESP) programme was developed to train flight attendants. The programme comprised of two units. Unit one is listening comprehension, which provides the flight attendants' with specific information of Airbus A340. Unit two is reading comprehension, which provides the flight attendants with the emergency…

  6. [Burnout and psychosocial risk factors in the career of flight attendants: Descriptive study of a population of Lebanese flight attendants].

    Science.gov (United States)

    Richa, N; Zreik, H; Richa, S

    2016-04-01

    The aim of our study was to investigate the influence of demographic factors (gender and age), work related factors (the position and years of practice) and psychosocial risk factors (cognitive demands, demands to hide emotions, work-family conflict, offensive behaviors…) on the development of burnout among flight attendants, and the nature of psychosocial factors to which they are exposed. The sample was divided into two groups: 67 flight attendants and 67 persons in various jobs. Our sampling units were informed and consented to fill in two questionnaires: the Copenhagen burnout inventory (CBI) and the Copenhagen Psychosocial Questionnaire (COPSOQ II). The burnout syndrome affected both groups equally. It affected equally the women as well as men, whatever their age categories and their years of experience. The flight attendants occupying an intermediate position in the hierarchy had the highest score on the burnout syndrome. The psychosocial factors significantly found in flight attendants compared to the control group were: demands for hiding emotions, quantitative demands, emotional demands, temporal demands, lack of influence at work, of rewards, of possibility for development and variation of work, poor quality of leadership, exposure to sexual harassment, lack of social support from supervisors, colleagues, social community at work and work-family conflict. Four of them correlated positively with the development of burnout: quantitative demands, temporal demands, emotional demands and work-family conflict. Their expected work volume is very high (quantitative demands). They have to perform their tasks quickly in a limited time without forgetting the technical constraints (temporal demands). They have to work with an average of three hundred passengers besides colleagues and subordinates, which requires diligent control of the emotions promoted by the airline code of conduct based on repression of emotions (emotional demands). These demands affect the

  7. The effects of Crew Resource Management (CRM) training on flight attendants' safety attitudes.

    Science.gov (United States)

    Ford, Jane; Henderson, Robert; O'Hare, David

    2014-02-01

    A number of well-known incidents and accidents had led the aviation industry to introduce Crew Resource Management (CRM) training designed specifically for flight attendants, and joint (pilot and flight attendant) CRM training as a way to improve teamwork and communication. The development of these new CRM training programs during the 1990s highlighted the growing need for programs to be evaluated using research tools that had been validated for the flight attendant population. The FSAQ (Flight Safety Attitudes Questionnaire-Flight Attendants) was designed specifically to obtain safety attitude data from flight attendants working for an Asia-Pacific airline. Flight attendants volunteered to participate in a study before receiving CRM training (N=563) and again (N=526) after CRM training. Almost half (13) of the items from the 36-item FSAQ showed highly significant changes following CRM training. Years of experience, crew position, seniority, leadership roles, flight attendant crew size, and length of route flown were all predictive of safety attitudes. CRM training for flight attendants is a valuable tool for increasing positive teamwork behaviors between the flight attendant and pilot sub-groups. Joint training sessions, where flight attendants and pilots work together to find solutions to in-flight emergency scenarios, provide a particularly useful strategy in breaking down communication barriers between the two sub-groups. Copyright © 2013 National Safety Council and Elsevier Ltd. All rights reserved.

  8. Burnout and workplace deviance among flight attendants in Taiwan.

    Science.gov (United States)

    Liang, Su-Chiun; Hsieh, An-Tien

    2007-10-01

    The relationship between burnout and workplace deviance, identified as a component of job performance, was examined. Burnout was assessed with the Maslach Burnout Inventory which has three dimensions, Emotional Exhaustion, Depersonalization, and Reduced Personal Accomplishment. Workplace deviance was defined as voluntary behavior that violates significant organizational norms and threatens the well-being of an organization, its members, or both. This was assessed with the Workplace Deviance Scale, measuring the extent to which the participants had engaged in workplace deviant behavior such as taking property from work without permission, making fun of someone at work, or cursing at someone at work. Anonymous questionnaires with stamped envelopes were distributed to a sample of 1,470 Taiwanese flight attendants at the Arrival Hall of Taiwan Taoyuan International Airport. A response rate of 22.45% was obtained. After cases with missing data (n = 27) had been eliminated, the sample totaled 303, 17 men and 286 women. The average age was 28.7 yr. (SD = 4.6). Results of hierarchical regression showed that Depersonalization scores were significantly predictive of Workplace Deviance scores but not Emotional Exhaustion and Reduced Personal Accomplishment scores. Possible reasons and implications of these findings were discussed.

  9. 14 CFR 91.1097 - Pilot and flight attendant crewmember training programs.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Pilot and flight attendant crewmember... RULES Fractional Ownership Operations Program Management § 91.1097 Pilot and flight attendant crewmember training programs. (a) Each program manager must establish and maintain an approved pilot training program...

  10. Modeling flight attendants' exposure to secondhand smoke in commercial aircraft: historical trends from 1955 to 1989.

    Science.gov (United States)

    Liu, Ruiling; Dix-Cooper, Linda; Hammond, S Katharine

    2015-01-01

    Flight attendants were exposed to elevated levels of secondhand smoke (SHS) in commercial aircraft when smoking was allowed on planes. During flight attendants' working years, their occupational SHS exposure was influenced by various factors, including the prevalence of active smokers on planes, fliers' smoking behaviors, airplane flight load factors, and ventilation systems. These factors have likely changed over the past six decades and would affect SHS concentrations in commercial aircraft. However, changes in flight attendants' exposure to SHS have not been examined in the literature. This study estimates the magnitude of the changes and the historic trends of flight attendants' SHS exposure in U.S. domestic commercial aircraft by integrating historical changes of contributing factors. Mass balance models were developed and evaluated to estimate flight attendants' exposure to SHS in passenger cabins, as indicated by two commonly used tracers (airborne nicotine and particulate matter (PM)). Monte Carlo simulations integrating historical trends and distributions of influence factors were used to simulate 10,000 flight attendants' exposure to SHS on commercial flights from 1955 to 1989. These models indicate that annual mean SHS PM concentrations to which flight attendants were exposed in passenger cabins steadily decreased from approximately 265 μg/m(3) in 1955 and 1960 to 93 μg/m(3) by 1989, and airborne nicotine exposure among flight attendants also decreased from 11.1 μg/m(3) in 1955 to 6.5 μg/m(3) in 1989. Using duration of employment as an indicator of flight attendants' cumulative occupational exposure to SHS in epidemiological studies would inaccurately assess their lifetime exposures and thus bias the relationship between the exposure and health effects. This historical trend should be considered in future epidemiological studies.

  11. Incidence and predictors of onboard injuries among Sri Lankan flight attendants

    Directory of Open Access Journals (Sweden)

    Agampodi Thilini C

    2009-07-01

    Full Text Available Abstract Background Occupational injuries among flight attendants have not been given appropriate attention in Sri Lanka. The purpose of this study was to estimate the incidence of onboard injury among Sri Lankan flight attendants and to describe the determinants of onboard injury. Methods A descriptive cross-sectional study was carried out among Sri Lankan flight attendants. All flight attendants undergoing their annual health and first aid training were invited to participate. Flight attendants who flew continuously for a six-month period prior to data collection were included in the study sample. Recall history of injuries for a period of six months was recorded. Results The study sample consisted of 98 (30.4% male and 224 (69.6% female flight attendants. The mean age of the study sample was 31 years (SD = 8 and the average duration of service was 10 years (SD = 7. A total of 100 onboard falls, slips or trips in the previous six months were reported by 52 (16.1% respondents. Of the total sample, 128 (39.8% cabin crew members reported an injury in the six months preceding the study. This represents a total injury incidence of 795 per 1000 person per year. The leading causes of injury was pulling, pushing or lifting (60.2%. The commonest type of injuries were strains and sprains (52.3%. Turbulence related injuries were reported by 38 (29.7% flight attendants. The upper limbs (44.5% and the back (32% were the commonest sites affected. After controlling for other factors, female flight attendants had 2.9 times higher risk (95% CI 1.2–7.2 of sustaining and injury than males. Irrespective of sex, body weight less than 56 kilograms (OR 2.9, 95% CI 1.4–5.8 and less than seven years of on board experience (OR 10.5, 95% CI 3.6–31.0 were associated with higher risk of injury. Conclusion Work related injury is a major occupational hazard to flight attendants. Appropriate preventive strategies are required to minimize them.

  12. Flight Attendant Fatigue. Part IV. Analysis of Incident Reports

    Science.gov (United States)

    2009-12-01

    arrangements were made, and I flew to Los Angeles. I went directly to my physician (internal medicine/cardiologist). he gave me an ekg and performed blood...had told us that we were a minimum crew of 5 and that 2 deadheaders on the flight had been informed that they would be our #3 and #5. She read out...incident, there are at least 2 or 3 that go unreported! I hope that there is someone who reads this who actually cares, because the supposed leaders

  13. Flight Attendant Fatigue, Part 1: National Duty, Rest, and Fatigue Survey

    Science.gov (United States)

    2009-12-01

    Wegmann, 1995; ewing, 1999; haugli, Skogstad, and hellesoy, 1994; hunt and Space, 1994; nagda and koontz , 2003; rayman, 1997; Smolensky, lee, Mott, and...nagda, n .l ., & koontz , M .d . (2003) . review of studies on flight attendant health and comfort in airliner cabins . Aviation, Space

  14. VIEW FROM THE TOP: ENJOYABLE AND EFFECTIVE APPROACHES TO ELT FOR FLIGHT ATTENDANT

    Directory of Open Access Journals (Sweden)

    Nanik Rianandita Sari,S.S.,M.A.

    2017-04-01

    Full Text Available Young people today are more exposed to popular culture than any other age group. Television, movies, music, magazines, fashion, and internet form a major psychological part of the lives and life styles of youngsters. Since there has been increasing interest in the use of popular culture as aids in learning English. This research will investigate the ways in which popular culture might be used in teaching English. Learning language through pop culture, which comes from the West. Music, songs, and movies are highly popular with youngster. The movie ‘View From The Top‘, in particular, was a popular movie, where it entered the fantasy world of most young girl who want to be a flight attendant class of 2011. Many of flight attendant watch this movie for several times, remembering the lines spoken by the actress, and reciting the lyrics of the theme songs. All of which seems to suggest that flight attendant student can learn English through their encounters with popular culture. A movie is one interesting way to learn English. Movie is one of popular culture which is part of oral literature which enhances ELT through elements such as authentic material, language in use and aesthetic representation of the spoken language, as well as language and cultural enrichment. Literature appeals to flight attendant students, it motivates them to become responsive and active learners.

  15. Mental Health and Substance Use Characteristics of Flight Attendants Enrolled in an In-Patient Substance Abuse Treatment Program

    Science.gov (United States)

    Horton, Gail; Diaz, Naelys; McIlveen, John; Weiner, Michael; Mullaney, Donald

    2011-01-01

    The purpose of this study was to explore the prevalence rates of co-occurring mental health problems among 70 flight attendants in substance abuse treatment. Results indicated that flight attendants in treatment were more likely to experience alcohol dependency than drug dependency. A high proportion of participants reported clinical levels of…

  16. Eating habit and other factors related to anemia in civil female flight attendant in Indonesia

    Directory of Open Access Journals (Sweden)

    Resna Nurhantika Sary

    2015-01-01

    attendant. This study aimed to identify several dominant risk factors related to anemia in female flight attendants. Method: A cross-sectional study with purposive sampling was conducted to female flight attendant who performing periodic medical check-up at the Civil Aviation Medical Center, Jakarta on May 1-152013. Data collected using structured questionnaire. The data collected were demographic data, job characteristics, the characteristics of eating habits, menstrual history, body mass index, and hemoglobin levels. Hemoglobin levels were taken from flight attendant’s medical records at the Civil Aviation Medical Center, Jakarta. Anemia defined if hemoglobin levels less than12 g/dl. Results: Out of 225 female flight attendants who did medical checkup, 185 of them age 18-46 years old who willing to participate in this study, and 28.1% of them had anemia. Frequency of eating red meat/week, total working period, type of flight, and menstruation were dominant risk factors related to anemia. The most dominant risk factor was of eating red meat/week. Flight attendant who had eat meat for 3 times or more a week compared to less than 3 times a week had 43% less riskof having anemia [adjusted relative risk (RRa = 0.57; 95% confidence interval (CI = 0.32 – 1.03; P = 0.064. Flight attendant who had heavy flow menstruation than normal flow menstruation have 3.45 times higher risk of having anemia [RRa = 3.45; P = 0.000].Conclusion: Flight attendant who had eating meat habit less than three times a week and having menstrual heavy flow has a high risk of having anemia. (Health Science Indones 2014;2:67-72Key words: anemia, flight attendant, meat, menstruation, Indonesia

  17. Working in the sky: a diary study on work engagement among flight attendants.

    Science.gov (United States)

    Xanthopoulou, Despoina; Bakker, Arnold B; Heuven, Ellen; Demerouti, Evangelia; Schaufeli, Wilmar B

    2008-10-01

    This study aims to gain insight in the motivational process of the Job Demands-Resources (JD-R) model by examining whether daily fluctuations in colleague support (i.e., a typical job resource) predict day-levels of job performance through self-efficacy and work engagement. Forty-four flight attendants filled in a questionnaire and a diary booklet before and after consecutive flights to three intercontinental destinations. Results of multilevel analyses revealed that colleague support had unique positive effects on self-efficacy and work engagement. Self-efficacy did not mediate the relationship between support and engagement, but work engagement mediated the relationship between self-efficacy and (in-role and extra-role) performance. In addition, colleague support had an indirect effect on in-role performance through work engagement. These findings shed light on the motivational process as outlined in the JD-R model, and suggest that colleague support is an important job resource for flight attendants helping them reach their work-related goals.

  18. Occupational cancer risk in pilots and flight attendants: current epidemiological knowledge

    International Nuclear Information System (INIS)

    Blettner, M.; Zeeb, H.; Grosche, B.

    1998-01-01

    Occupational studies of aircrew in civil or military aviation did not receive much attention until the beginning of this decade. Since 1990, a number of epidemiological studies has been published on the cancer risk among flight personnel. Their results are equivocal: elevated cancer risks have been observed in some studies, but not in others. The exposure situation for pilots and flight attendants is unique with respect to several factors and particularly in that cosmic rays contribute substantially to their cumulative radiation dose. The average annual doses received are relatively low, however, and commonly range between 3 and 6 mSv. Results of epidemiological studies are presented as well as information on planned studies. (orig.)

  19. Job stress and risk of menstrual duration disorder in female civilian flight attendants in Indonesia

    Directory of Open Access Journals (Sweden)

    Melissa Audry Rampen

    2016-03-01

    disorder in female flight attendants.Methods: A cross-sectional study with convenient sampling was conducted on civilian female flightattendants age 19–50 years who underwent routine medical examination at Civil Aviation Medical Centerand Garuda Sentra Medika, Jakarta on May 18-29 2015. Menstrual duration disorder is menstruation morethan 8 days and/or shorter than usual perid (3-5 days. Stress was identified by usingcriteria of NationalInstitute for Occupational Safety and Health Generic Job Stress Questionnaire Mental Demands FormNumber 11. Relative risk was analyzed usng Cox regression.Results: Among 521 female civilian flight attendants, 393 were willing to participate in this study. Nineteensubjects were excluded, leaving 374 subjects for this analysis, and 35.8% of subjects had menstrualduration disorder. Job stress, flight type and age were dominant risk factors for menstrual duration disorder.Subjects with job stress and long haul flight within three months had higher risk for having menstrualduration disorder by 58% [adjusted relative risk (RRa = 1.58; confidence interval (CI = 0.96-2.62; P =0.071] and 69% (RRa = 1.69; CI = 1.17-2.43 respectively. Those between aged 30-39 years had 50% hadless risk of having menstrual duration disorder (RRa=0.50; 95% CI = 0.22-1.02; P = 0.057.Conclusion: Female civilian flight attendants with job stress, long haul flight within three months and youngerage had higher risk to be menstrual duration disorder. (Health Science Journal of Indonesia 2015;6:87-91Key words: menstrual duration, job stress, female civilian flight attendant, Indonesia

  20. Flight time, number of sectors and risk of low back pain among short and medium haul commercial female flight attendants in Indonesia

    Directory of Open Access Journals (Sweden)

    Irma Khrisnapandit

    2016-07-01

    Full Text Available Abstrak Latar belakang: Nyeri pinggang bawah (NPB sering dialami pramugari dan dapat membatasi tugas serta tanggung jawab pramugari. Tujuan penelitian ialah untuk mengetahui hubungan antara jam terbang dan faktor lainnya dengan NPB pramugari sipil penerbangan jarak dekat dan menengah di Indonesia. Metode: Studi potong lintang dengan sampling purposif dilakukan pada pramugari sipil penerbangan jarak dekat dan menengah yang melaksanakan pengujian kesehatan di Balai Kesehatan Penerbangan tanggal 5-26 Mei 2014. Data demografi, pekerjaan dan NPB dikumpulkan dengan pengisian kuesioner dan pemeriksaan fisik. Definisi NPB ialah nyeri anamnesis yang pernah atau masih dirasakan pada pinggang bawah 1 bulan terakhir, non-neural, dan tidak terkait cedera akut yang tidak berhubungan pekerjaan. Analisis regresi Cox digunakan untuk mengidentifikasi faktor risiko yang berhubungan NPB. Hasil: Di antara 333 pramugari yang melaksanakan pengujian kesehatan, 287 orang bersedia berpartisipasi, dan 240 di antaranya memenuhi kriteria inklusi. Sebanyak 37,9% pramugari menderita NPB. Faktor dominan yang mempertinggi risiko NPB ialah jam terbang dan jumlah sektor 24 jam terakhir. Pramugari dengan jam terbang 9 jam atau lebih dibandingkan dengan yang  kurang dari 9 jam berisiko 82% lebih tinggi mengalami NPB [risiko relatif suaian (RRa = 1,82; p = 0,000]. Ditinjau dari jumlah sektor 24 jam terakhir, pramugari dengan 4 sektor atau lebih dibandingkan yang kurang dari 4 sektor berisiko 53% lebih tinggi mengalami NPB (RRa = 1,53; p = 0,034.   Kesimpulan: Jam terbang 24 jam terakhir selama 9 jam atau lebih dan jumlah sektor sebanyak 24 jam terakhir 4 sektor atau lebih meningkatkan risiko NPB Kata kunci: nyeri pinggang bawah, pramugari, jam terbang, jumlah sektor   Abstract Background: Low back pain (LBP often experienced by flight attendants could limit their duties and responsibilities. Aim of this study was to determine the correlation between flight time and other factors

  1. Putting the "we" into teamwork: effects of priming personal or social identity on flight attendants' perceptions of teamwork and communication.

    Science.gov (United States)

    Ford, Jane; O'Hare, David; Henderson, Robert

    2013-06-01

    The study was designed to investigate the effectiveness of a manipulation derived from social categorization and social identity theory to promote greater cabin crew willingness to engage in intergroup communication and teamwork in airline operations. Failures of communication and teamwork between airline crew have been implicated in a number of airline crashes. Flight attendants based domestically (n = 254) or overseas (n = 230) received a manipulation designed to prime either their social identity or personal identity and then read a brief outline of an in-flight event before completing a teamwork questionnaire. Flight attendants who received a social identity prime indicated increased willingness to engage in coordinated team action compared with those who received a personal identity prime. Priming social identity can enhance attitudes toward teamwork and communication, potentially leading to increased willingness to engage in intergroup cooperation. Social categorization and social identity theories can be used to inform joint training program development for flight attendants and pilots to create increased willingness for group members to participate in effective communication and teamwork behaviors.

  2. Impossible meals? The food and meal situation of flight attendants in Scandinavia - A qualitative interview study.

    Science.gov (United States)

    Nyberg, Maria; Lennernäs Wiklund, Maria

    2017-06-01

    The working conditions of flight attendants (FAs) often involve extended and irregular working hours, short rest periods, difficulties in planning for breaks and high demands of service provision. Moreover, work schedules including early check-in, shifts during circadian low and time-zone transitions imply constant exposure to alterations in circadian systems and related health risks. The aim of this explorative study was to investigate how the organisation of work, time and place influence the food and meal situation of FAs when at work, focusing on patterns, form and social context of meals. The research questions posed were how food and meals at work were characterised and perceived among the FAs, and what strategies were adopted to manage the food and meal situation. Qualitative, semi-structured interviews were conducted with fourteen FAs working in Scandinavia. The results indicated that the organisation of work, time and place have a major influence on the meal situation at work, and how food and meals are perceived and managed by FAs. The work was defined as fragmented and inconsistent regarding time and place resulting in scattered meals and a more snack-based form of eating. The meal situation was characterised by irregularity as well as unpredictability. Eating took place when food was available and when there was enough time to eat, rather than being guided by hunger or social context. Various strategies such as eating in prevention, using emergency food, avoiding certain food and drinks or eating little or nothing at all were used to manage the unpredictability of the meal situation as well as the gap between organisational and individual times. The findings demonstrated the individual responsibility to solve the meal at work, e.g. to solve organisational times. Copyright © 2017 Elsevier Ltd. All rights reserved.

  3. Association between respiratory tract diseases and secondhand smoke exposure among never smoking flight attendants: a cross-sectional survey

    Directory of Open Access Journals (Sweden)

    Murawski Judith

    2007-09-01

    Full Text Available Abstract Background Little is known about long-term adverse health consequences experienced by flight attendants exposed to secondhand smoke (SHS during the time smoking was allowed on airplanes. We undertook this study to evaluate the association between accumulated flight time in smoky airplane cabins and respiratory tract diseases in a cohort of never smoking flight attendants. Methods We conducted a mailed survey in a cohort of flight attendants. Of 15,000 mailed questionnaires, 2053 (14% were completed and returned. We excluded respondents with a personal history of smoking (n = 748 and non smokers with a history of respiratory tract diseases before the age of 18 years (n = 298. The remaining 1007 respondents form the study sample. Results The overall study sample was predominantly white (86% and female (89%, with a mean age of 54 years. Overall, 69.7% of the respondents were diagnosed with at least one respiratory tract disease. Among these respondents, 43.4% reported a diagnosis of sinusitis, 40.3% allergies, 30.8% bronchitis, 23.2% middle ear infections, 13.6% asthma, 13.4% hay fever, 12.5% pneumonia, and 2.0% chronic obstructive pulmonary disease. More hours in a smoky cabin were observed to be significantly associated with sinusitis (OR = 1.21; p = 0.024, middle ear infections (OR = 1.30; p = 0.006, and asthma (OR = 1.26; p = 0.042. Conclusion We observed a significant association between hours of smoky cabin exposure and self-reported reported sinusitis, middle ear infections, and asthma. Our findings suggest a dose-response between duration of SHS exposure and diseases of the respiratory tract. Our findings add additional evidence to the growing body of knowledge supporting the need for widespread implementation of clean indoor air policies to decrease the risk of adverse health consequences experienced by never smokers exposed to SHS.

  4. Clear Skies and Grey Areas: Flight Attendants' Secondhand Smoke Exposure and Attitudes toward Smoke-Free Policy 25 Years since Smoking was Banned on Airplanes.

    Science.gov (United States)

    Stillman, Frances A; Soong, Andrea; Zheng, Laura Y; Navas-Acien, Ana

    2015-06-04

    Our objective was to provide descriptive data on flight attendant secondhand smoke (SHS) exposure in the work environment, and to examine attitudes toward SHS exposure, personal health, and smoke-free policy in the workplace and public places. Flight attendants completed a web-based survey of self-reported SHS exposure and air quality in the work environment. We assessed the frequency and duration of SHS exposure in distinct areas of the workplace, attitudes toward SHS exposure and its health effects, and attitudes toward smoke-free policy in the workplace as well as general public places. A total of 723 flight attendants participated in the survey, and 591 responded to all survey questions. The mean level of exposure per flight attendant over the past month was 249 min. The majority of participants reported being exposed to SHS always/often in outdoor areas of an airport (57.7%). Participants who worked before the in-flight smoking ban (n=240) were more likely to support further smoking policies in airports compared to participants who were employed after the ban (n=346) (76.7% versus 60.4%, p-valuesmoke-free policies and want to see further restrictions in airports and public places.

  5. Malaria prevention knowledge, attitudes, and practices (KAP) among international flying pilots and flight attendants of a US commercial airline.

    Science.gov (United States)

    Selent, Monica; de Rochars, Valery M Beau; Stanek, Danielle; Bensyl, Diana; Martin, Barbara; Cohen, Nicole J; Kozarsky, Phyllis; Blackmore, Carina; Bell, Teal R; Marano, Nina; Arguin, Paul M

    2012-12-01

    In 2010, malaria caused approximately 216 million infections in people and 655,000 deaths. In the United States, imported malaria cases occur every year, primarily in returning travelers and immigrants from endemic countries. In 2010, five Plasmodium falciparum malaria cases occurred among crew members of one US commercial airline company (Airline A). This investigation aimed to assess the malaria prevention knowledge, attitudes, and practices (KAP) of Airline A crew members to provide information for potential interventions. The web link to a self-administered on-line survey was distributed by internal company communications to Airline A pilots and flight attendants (FA) eligible for international travel. The survey collected demographic information as well as occupation, work history, and malaria prevention education. Of approximately 7,000 nonrandomly selected crew members, 220 FA and 217 pilots completed the survey (6%). Respondents correctly identified antimalarial medication (91% FA, 95% pilots) and insect repellents (96% FA, 96% pilots) as effective preventive measures. While in malaria-intense destinations, few FA and less than half of pilots always took antimalarial medication (4% FA, 40% pilots) yet many often spent greater than 30 minutes outdoors after sundown (71% FA, 66% pilots). Less than half in both groups always used insect repellents (46% FA, 47% pilots). Many respondents were unaware of how to get antimalarial medications (52% FA, 30% pilots) and were concerned about their side effects (61% FA, 31% pilots). Overall, FA and pilots demonstrated good knowledge of malaria prevention, but many performed risky activities while practicing only some recommended malaria preventive measures. Malaria prevention education should focus on advance notification if traveling to a malaria-endemic area, how to easily obtain antimalarial medications, and the importance of practicing all recommended preventive measures. © 2012 International Society of Travel

  6. The unified approach of management and critical incident stress management: helping flight attendants and pilots in the aftermath of September 11.

    Science.gov (United States)

    McIntosh, Tania

    2006-01-01

    Experience suggests that effective and appropriate responses of an organization's management after a traumatic incident can help mitigate the reactions of primary, secondary, and tertiary victims. This commentary addresses the managerial response of Southwest Airlines to the trauma induced by September 11. It highlights the effectiveness of the unity between the company, the unions, and the Critical Incident Response Team, as well as the types of interventions that were highly regarded by flight attendants and pilots who received such services. This commentary also defines the phenomenon known as fear of flight.

  7. Meditative Movement as a treatment for pulmonary dysfunction in flight attendants exposed to second-hand cigarette smoke: Study protocol for a randomized trial.

    Directory of Open Access Journals (Sweden)

    Peter ePayne

    2016-03-01

    Full Text Available A study protocol is presented for the investigation of Meditative Movement (MM as a treatment for pulmonary dysfunction in Flight Attendants (FA who were exposed to second-hand cigarette smoke (SHCS while flying before the smoking ban. The study will have three parts, some of which will run concurrently. The first is a data gathering and screening phase, which will gather data on pulmonary and other aspects of the health of FA, and will also serve to screen participants for the other phases. Second is an exercise selection phase, in which a variety of MM exercises will be taught, over a 16-week period, to a cohort of 20 FA. A subset of these exercises will be selected on the basis of participant feedback on effectiveness and compliance. Third is a 52-week randomized controlled trial (RCT to evaluate the effectiveness of a digitally delivered form of the previously selected exercises on a group of 20 FA, as compared with an attention control group. Outcome measures to be used in all three parts of the study include the six-minute walk test as a primary measure, as well as a range of biomarkers, tests and questionnaires documenting hormonal, cardio-respiratory, autonomic and affective state. This study is registered at ClinicalTrials.gov. Identifier: NCT02612389.

  8. Psychology of Flight Attendant’s Profession

    OpenAIRE

    Tatyana V. Filipieva

    2012-01-01

    The profession of a flight attendant appeared in aviation in the 1920s. Professional community of flight attendants is constantly growing with the growth of complexity of aviation technology, professional standards of passenger service and safety. The psychological scientific research was carried out by a psychologist who worked as a flight attendant. The study revealed the psychological content, demands, peculiarities in cabin crews' labor. A job description was accomplished. Temporal and sp...

  9. Psychology of Flight Attendant’s Profession

    Directory of Open Access Journals (Sweden)

    Tatyana V. Filipieva

    2012-01-01

    Full Text Available The profession of a flight attendant appeared in aviation in the 1920s. Professionalcommunity of flight attendants is constantly growing with the growth ofcomplexity of aviation technology, professional standards of passenger serviceand safety. The psychological scientific research was carried out by a psychologistwho worked as a flight attendant. The study revealed the psychological content,demands, peculiarities in cabin crews’ labor. A job description was accomplished.Temporal and spatial characteristics, the main contradictions, unfavorable psychogenicand stress factors in labor were examined and described. Psychological profilesof a cabin attendant and of an air passenger were drawn up.

  10. Attendance as control

    OpenAIRE

    Beckton, Julian

    2013-01-01

    Student attendance in higher education, particularly at lectures, is a topic that researchers have largely neglected, other than in relatively small scale studies. This paper reviews university attendance policies based on documentary research in university web sites. While there are acknowledged methodological limitations to this approach, some universities are beginning to implement automated recording of student attendance in UK higher education and others are debating the merits of doing ...

  11. Miracle Flights

    Science.gov (United States)

    ... a Flight Get Involved Events Shop Miles Contact Miracle Flights Blog Giving Tuesday 800-359-1711 Thousands of children have been saved, but we still have miles to go. Request a Flight Click Here to Donate - Your ...

  12. Impact of Attendance Policies on Course Attendance among College Students

    Science.gov (United States)

    Chenneville, Tiffany; Jordan, Cary

    2008-01-01

    The purpose of this study was twofold: (a) to investigate whether having a graded attendance policy would have an effect on course attendance among college students, and (b) to examine beliefs about education and attendance policies among college students. Results support the utility of graded attendance policies for increasing class attendance…

  13. Attending to auditory memory.

    Science.gov (United States)

    Zimmermann, Jacqueline F; Moscovitch, Morris; Alain, Claude

    2016-06-01

    Attention to memory describes the process of attending to memory traces when the object is no longer present. It has been studied primarily for representations of visual stimuli with only few studies examining attention to sound object representations in short-term memory. Here, we review the interplay of attention and auditory memory with an emphasis on 1) attending to auditory memory in the absence of related external stimuli (i.e., reflective attention) and 2) effects of existing memory on guiding attention. Attention to auditory memory is discussed in the context of change deafness, and we argue that failures to detect changes in our auditory environments are most likely the result of a faulty comparison system of incoming and stored information. Also, objects are the primary building blocks of auditory attention, but attention can also be directed to individual features (e.g., pitch). We review short-term and long-term memory guided modulation of attention based on characteristic features, location, and/or semantic properties of auditory objects, and propose that auditory attention to memory pathways emerge after sensory memory. A neural model for auditory attention to memory is developed, which comprises two separate pathways in the parietal cortex, one involved in attention to higher-order features and the other involved in attention to sensory information. This article is part of a Special Issue entitled SI: Auditory working memory. Copyright © 2015 Elsevier B.V. All rights reserved.

  14. Flight Planning

    Science.gov (United States)

    1991-01-01

    Seagull Technology, Inc., Sunnyvale, CA, produced a computer program under a Langley Research Center Small Business Innovation Research (SBIR) grant called STAFPLAN (Seagull Technology Advanced Flight Plan) that plans optimal trajectory routes for small to medium sized airlines to minimize direct operating costs while complying with various airline operating constraints. STAFPLAN incorporates four input databases, weather, route data, aircraft performance, and flight-specific information (times, payload, crew, fuel cost) to provide the correct amount of fuel optimal cruise altitude, climb and descent points, optimal cruise speed, and flight path.

  15. Flight Attendant Fatigue. Part 5: A Comparative Study of International Flight Attendant Fatigue Regulations and Collective Bargaining Agreements

    Science.gov (United States)

    2009-11-01

    reduced rest period. 6 Day Off A period of at least 24 hr available for leisure and relaxation free from all duties. 7 Crew Rest Facilities A...Republic of Korea 1 0 0 1 Malaysia 4 7 1 3 Maldives 3 1 0 1 Malta 3 5 1 0 Nigeria 1 2 0 1 Pakistan 8 4 1 2 Philippines 7 4 0 2 Singapore 5 7 0 2

  16. CBP Time and Attendance Management

    Data.gov (United States)

    Department of Homeland Security — The TAMS, supports time and attendance (payroll), overtime cap monitoring, overtime scheduling functions, budget reporting, staffing level reporting, and a variety...

  17. Cytogenic Investigations in Flight Personnel

    International Nuclear Information System (INIS)

    Wolf, G.; Obe, G.; Bergau, L.

    1999-01-01

    During long-distance flights at high altitudes flight personnel are exposed to cosmic radiation. In order to determine whether there are biological effects of such low dose radiation exposure in aircrew, chromosomal aberrations were investigated in 59 female cabin attendants and a matched control group of 31 members of station personnel. The mean number of dicentric chromosomes amounts to 1.3 (95% CI 1.0-1.6) per 1,000 cells in cabin attendants and 1.4 (95% CI 1.0-1.9) per 1,000 cells in controls. In an additional control group of 56 female clerks from Berlin the mean frequency of dicentric chromosomes was 1.3 (95% CI 1.0-1.6). Neither in dicentric frequency and distribution nor in other aberrations was a significant difference between the groups of flight and station personnel found. The high frequency of multi-aberrant cells was remarkable in flight personnel as well as in station personnel. The reason for this phenomenon is unknown and needs further investigation. (author)

  18. Attendance Policies, Student Attendance, and Instructor Verbal Aggressiveness

    Science.gov (United States)

    Snyder, Jason; Forbus, Robert; Cistulli, Mark

    2012-01-01

    The authors utilized an experimental design across six sections of a managerial communications course (N = 173) to test the impact of instructor verbal aggressiveness and class attendance policies on student class attendance. The experimental group received a policy based on the principle of social proof (R. B. Cialdini, 2001), which indicated…

  19. The Zulu traditional birth attendant

    African Journals Online (AJOL)

    Some of the important practices of Zulu traditional birth attendants ... the people as regards pregnancy and labour. This article docu- .... into account previous perinatal deaths. ... They were either widows or married to husbands unable to work.

  20. Using Attendance Worksheets to Improve Student Attendance, Participation, and Learning

    Science.gov (United States)

    Rhoads, Edward

    2013-06-01

    As science instructors we are faced with two main barriers with respect to student learning. The first is motivating our students to attend class and the second is to make them active participants in the learning process once we have gotten them to class. As we head further into the internet age this problem only gets exacerbated as students have replaced newspapers with cell phones which can surf the web, check their emails, and play games. Quizzes can motivated the students to attend class but do not necessarily motivate them to pay attention. Active learning techniques work but we as instructors have been bombarded by the active learning message to the point that we either do it already or refuse to. I present another option which in my classroom has doubled the rate at which students learn my material. By using attendance worksheets instead of end of class quizzes I hold students accountable for not just their attendance but for when they show up and when they leave the class. In addition it makes the students an active participant in the class even without using active learning techniques as they are writing notes and answering the questions you have posed while the class is in progress. Therefore using attendance worksheets is an effective tool to use in order to guide student learning.

  1. News Education: Physics Education Networks meeting has global scale Competition: Competition seeks the next Brian Cox Experiment: New measurement of neutrino time-of-flight consistent with the speed of light Event: A day for all those who teach physics Conference: Students attend first Anglo-Japanese international science conference Celebration: Will 2015 be the 'Year of Light'? Teachers: Challenging our intuition in spectacular fashion: the fascinating world of quantum physics awaits Research: Science sharpens up sport Learning: Kittinger and Baumgartner: on a mission to the edge of space International: London International Youth Science Forum calls for leading young scientists Competition: Physics paralympian challenge needs inquisitive, analytical, artistic and eloquent pupils Forthcoming events

    Science.gov (United States)

    2012-05-01

    Education: Physics Education Networks meeting has global scale Competition: Competition seeks the next Brian Cox Experiment: New measurement of neutrino time-of-flight consistent with the speed of light Event: A day for all those who teach physics Conference: Students attend first Anglo-Japanese international science conference Celebration: Will 2015 be the 'Year of Light'? Teachers: Challenging our intuition in spectacular fashion: the fascinating world of quantum physics awaits Research: Science sharpens up sport Learning: Kittinger and Baumgartner: on a mission to the edge of space International: London International Youth Science Forum calls for leading young scientists Competition: Physics paralympian challenge needs inquisitive, analytical, artistic and eloquent pupils Forthcoming events

  2. Church Attendance and Religious Experience

    Directory of Open Access Journals (Sweden)

    Marianne Nilsen Kvande

    2015-10-01

    Full Text Available Previous studies have shown that gender may moderate the relationship between religiousness and mental health in most countries, but few studies have been conducted in Norway and Denmark. This study examined gender differences in religious experiences and church attendance as predictors of existential well-being among 295 women and 233 men from the general Norwegian population. Analyses showed that the structural equation models for women and men did not differ significantly on the global level. The models for women and men, however, showed different patterns. Among men, church attendance and negative religious experiences predicted existential well-being; among women, positive and negative religious experiences were related to existential well-being, but church attendance was not. The present findings suggest that men may benefit more from active religiousness, whereas women may benefit more from affective religiousness. Comparing these results with research in other cultural contexts, we find that different operationalizations of church attendance yield the same types of patterns across cultural contexts. Consequently, the benefits of religiousness may be similar for women and men irrespective of cultural context.

  3. Attendance Policies and Student Grades

    Science.gov (United States)

    Risen, D. Michael

    2007-01-01

    The details described in this case study examine the issues related to attendance policies and how such policies might be legally used to affect student grades. Concepts discussed should cause graduate students in educational administration to reflect on the issues presented from various points of view when the students complete an analysis of the…

  4. Speech-based Class Attendance

    Science.gov (United States)

    Faizel Amri, Umar; Nur Wahidah Nik Hashim, Nik; Hazrin Hany Mohamad Hanif, Noor

    2017-11-01

    In the department of engineering, students are required to fulfil at least 80 percent of class attendance. Conventional method requires student to sign his/her initial on the attendance sheet. However, this method is prone to cheating by having another student signing for their fellow classmate that is absent. We develop our hypothesis according to a verse in the Holy Qur’an (95:4), “We have created men in the best of mould”. Based on the verse, we believe each psychological characteristic of human being is unique and thus, their speech characteristic should be unique. In this paper we present the development of speech biometric-based attendance system. The system requires user’s voice to be installed in the system as trained data and it is saved in the system for registration of the user. The following voice of the user will be the test data in order to verify with the trained data stored in the system. The system uses PSD (Power Spectral Density) and Transition Parameter as the method for feature extraction of the voices. Euclidean and Mahalanobis distances are used in order to verified the user’s voice. For this research, ten subjects of five females and five males were chosen to be tested for the performance of the system. The system performance in term of recognition rate is found to be 60% correct identification of individuals.

  5. Automated attendance management and alert system | Rahim ...

    African Journals Online (AJOL)

    Automated attendance management and alert system. ... Journal of Fundamental and Applied Sciences ... AAMAS provides various functions, from managing and recording students' attendance record, to sending automatic alerts to students ...

  6. Impact of conference attendance on librarians' leadership ...

    African Journals Online (AJOL)

    ... attendance to leadership developments hows approximately 0.370.m Conference attendance was highly recommended as a means of enhancing leadership development of academic librarians. Keywords: Experiential learning, self efficacy, attitude, Conference, Impact, Leadership, Teamwork, development, brainstorm, ...

  7. Attendance Control System based on RFID technology

    OpenAIRE

    Nurbek Saparkhojayev; Selim Guvercin

    2012-01-01

    In Kazakhstan, checking students' attendance is one of the important issues for universities, because many universities evaluate students attendance and while giving the final grade, professors consider their total number of appearances on classes during the whole semester. This brings to the idea of having some tool to control students attendance. Some universities prefer to use paper sheet for controlling attendance, whereas some universities prefer to use paper sheet for checking students'...

  8. 29 CFR 785.28 - Involuntary attendance.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Involuntary attendance. 785.28 Section 785.28 Labor... POLICY OR INTERPRETATION NOT DIRECTLY RELATED TO REGULATIONS HOURS WORKED Application of Principles Lectures, Meetings and Training Programs § 785.28 Involuntary attendance. Attendance is not voluntary, of...

  9. Successful Attendance Policies and Programs. Research Brief

    Science.gov (United States)

    Education Partnerships, Inc., 2012

    2012-01-01

    What steps can be taken to assure that High School students have the best attendance possible? It is commonly believed and well supported by research that students who attend school regularly are more successful than those who do not. The challenge for high schools is to design and implement attendance policies and programs that monitor,…

  10. Effect of weather on football attendances

    Energy Technology Data Exchange (ETDEWEB)

    Cairns, J A

    1984-01-01

    On the premise that weather should have an effect on spectator attendance at sports events in outdoor settings (a topic which has received surprisingly little formalized study), the author examined the record of home attendances for three football teams in Scotland. In general, it was found that the greater the rainfall on the day of the match the lower the attendance. Dividing spectators into different groups, it was further found that an additional hour of sunshine was associated 162 more adults attending Aberdeen matches, while high temperatures appeared to increase juvenile attendance (by 57 for ever 1 deg. C. rise in temperature). Weather disruption of football games is attended by a number of costs, both direct and indirect. Quantifying the impact of weather can shed substantial light on the problem of scheduling for the season. For example, since certain periods are, on average, wetter than others, rescheduling to drier periods might encourage greater attendance.

  11. Traditional birth attendants in Malawi

    Directory of Open Access Journals (Sweden)

    J. J. M. Smit

    1994-03-01

    Full Text Available Traditional Birth Attendants (TBAs and traditional healers form an important link in the chain of health personnel providing primary health care in Malawi. In spite of the establishment of hospitals and health centres, it is to these traditional healers and TBAs that the majority of people turn in times of sickness and child-birth. Approximately 60 percent of all deliveries in Malawi occur in the villages. It is therefore important that due regard be paid to the activities of these traditional practitioners in order to ensure the achievement of the goal - "Health for all by the year 2000". The training of TBAs is seen as part of the Maternal and Child Health Services in the country.

  12. Traditional birth attendants in Malawi

    Directory of Open Access Journals (Sweden)

    J. J. M. Smit

    1994-05-01

    Full Text Available Traditional Birth Attendants (TBAs and traditional healers form an important link in the chain of health personnel providing primary health care in Malawi. In spite of the establishment of hospitals and health centres, it is to these traditional healers and TBAs that the majority of people turn in times of sickness and child-birth. Approximately 60 percent of all deliveries in Malawi occur in the villages. It is therefore important that due regard be paid to the activities of these traditional practitioners in order to ensure the achievement of the goal - "Health for all by the year 2000". The training of TBAs is seen as part of the Maternal and Child Health Services in the country.

  13. Manned Flight Simulator (MFS)

    Data.gov (United States)

    Federal Laboratory Consortium — The Aircraft Simulation Division, home to the Manned Flight Simulator (MFS), provides real-time, high fidelity, hardware-in-the-loop flight simulation capabilities...

  14. Insect flight muscle metabolism

    NARCIS (Netherlands)

    Horst, D.J. van der; Beenakkers, A.M.Th.; Marrewijk, W.J.A. van

    1984-01-01

    The flight of an insect is of a very complicated and extremely energy-demanding nature. Wingbeat frequency may differ between various species but values up to 1000 Hz have been measured. Consequently metabolic activity may be very high during flight and the transition from rest to flight is

  15. The return of the Traditional Birth Attendant

    Directory of Open Access Journals (Sweden)

    Karen Lane

    2016-12-01

    Full Text Available Sub–Saharan Africa and Southern Asia lag behind other regions in the provision of antenatal care and skilled attendance at birth (although typically attended by a family member or villager and over 32 million of the 40 million births not attended by skilled health personnel in 2012 occurred in rural areas. Overall, one–quarter of women in developing nations still birth alone or with a relative to assist them.

  16. Flammability on textile of flight crew professional clothing

    Science.gov (United States)

    Silva-Santos, M. C.; Oliveira, M. S.; Giacomin, A. M.; Laktim, M. C.; Baruque-Ramos, J.

    2017-10-01

    The issue about flammability of textile materials employed in passenger cabins of commercial aircrafts is an important part of safety routines planning. Once an in-flight emergency initiated with fire or smoke aboard, time becomes critical and the entire crew must be involved in the solution. It is part of the crew functions, notably the attendants, the in-flight firefighting. This study compares the values of textile material of flight attendant working cloths and galley curtain fabric with regard to flammability and Limiting Oxygen Index (LOI). Values to the professional clothing material indicate that they are flammable and the curtains, self-extinguishing. Thus, despite of the occurrences of fire outbreaks in aircrafts are unexceptional, the use of other materials and technologies for uniforms, such as alternative textile fibers and flame retardant finishes should be considered as well as the establishment of performance limits regarding flame and fire exposing.

  17. Community College Attendance and Socioeconomic Plans

    Science.gov (United States)

    Park, Sueuk; Pascarella, Ernest T.

    2010-01-01

    Using data from the National Education Longitudinal Study, 1988 (NELS: 88), this paper documents differences in the socioeconomic plans of students in two-year and four-year colleges. We found attendance at a two-year college led to a modest but statistically significant disadvantage in socioeconomic plans. However, the impact of attending a…

  18. Flight code validation simulator

    Science.gov (United States)

    Sims, Brent A.

    1996-05-01

    An End-To-End Simulation capability for software development and validation of missile flight software on the actual embedded computer has been developed utilizing a 486 PC, i860 DSP coprocessor, embedded flight computer and custom dual port memory interface hardware. This system allows real-time interrupt driven embedded flight software development and checkout. The flight software runs in a Sandia Digital Airborne Computer and reads and writes actual hardware sensor locations in which Inertial Measurement Unit data resides. The simulator provides six degree of freedom real-time dynamic simulation, accurate real-time discrete sensor data and acts on commands and discretes from the flight computer. This system was utilized in the development and validation of the successful premier flight of the Digital Miniature Attitude Reference System in January of 1995 at the White Sands Missile Range on a two stage attitude controlled sounding rocket.

  19. Flight control actuation system

    Science.gov (United States)

    Wingett, Paul T. (Inventor); Gaines, Louie T. (Inventor); Evans, Paul S. (Inventor); Kern, James I. (Inventor)

    2006-01-01

    A flight control actuation system comprises a controller, electromechanical actuator and a pneumatic actuator. During normal operation, only the electromechanical actuator is needed to operate a flight control surface. When the electromechanical actuator load level exceeds 40 amps positive, the controller activates the pneumatic actuator to offset electromechanical actuator loads to assist the manipulation of flight control surfaces. The assistance from the pneumatic load assist actuator enables the use of an electromechanical actuator that is smaller in size and mass, requires less power, needs less cooling processes, achieves high output forces and adapts to electrical current variations. The flight control actuation system is adapted for aircraft, spacecraft, missiles, and other flight vehicles, especially flight vehicles that are large in size and travel at high velocities.

  20. A Study on Attendance and Academic Achievement

    DEFF Research Database (Denmark)

    Sund, Kristian J.; Bignoux, Stephane

    In this study we attempt to answer Romer’s (1993) question: “Should attendance be mandatory?” Contrary to many existing studies, we conclude that in the case of business and management programs the answer is ‘no’. In a study of over 900 undergraduate strategy students, spanning four academic years......, we examine the link between attendance and exam results. Unlike prior research on this topic, our findings show that attendance is not the best determinant of student performance. We find instead that the best determinant of student performance for third year bachelor students is their over......-all degree classification, which we see as a proxy for academic ability. We suggest that attendance may simply be a reflection of student conscientiousness, engagement and motivation. We also challenge the assumptions about gender differences found in prior research on student attendance and student...

  1. Bat flight: aerodynamics, kinematics and flight morphology.

    Science.gov (United States)

    Hedenström, Anders; Johansson, L Christoffer

    2015-03-01

    Bats evolved the ability of powered flight more than 50 million years ago. The modern bat is an efficient flyer and recent research on bat flight has revealed many intriguing facts. By using particle image velocimetry to visualize wake vortices, both the magnitude and time-history of aerodynamic forces can be estimated. At most speeds the downstroke generates both lift and thrust, whereas the function of the upstroke changes with forward flight speed. At hovering and slow speed bats use a leading edge vortex to enhance the lift beyond that allowed by steady aerodynamics and an inverted wing during the upstroke to further aid weight support. The bat wing and its skeleton exhibit many features and control mechanisms that are presumed to improve flight performance. Whereas bats appear aerodynamically less efficient than birds when it comes to cruising flight, they have the edge over birds when it comes to manoeuvring. There is a direct relationship between kinematics and the aerodynamic performance, but there is still a lack of knowledge about how (and if) the bat controls the movements and shape (planform and camber) of the wing. Considering the relatively few bat species whose aerodynamic tracks have been characterized, there is scope for new discoveries and a need to study species representing more extreme positions in the bat morphospace. © 2015. Published by The Company of Biologists Ltd.

  2. Capital Flight from Russia

    OpenAIRE

    Prakash Loungani; Paolo Mauro

    2000-01-01

    This paper documents the scale of capital flight from Russia, compares it with that observed in other countries, and reviews policy options. The evidence from other countries suggests that capital flight can be reversed once reforms take hold. The paper argues that capital flight from Russia can only be curbed through a medium-term reform strategy aimed at improving governance and macroeconomic performance, and strengthening the banking system. Capital controls result in costly distortions an...

  3. Theseus in Flight

    Science.gov (United States)

    1996-01-01

    The twin pusher propeller-driven engines of the Theseus research aircraft can be clearly seen in this photo, taken during a 1996 research flight at NASA's Dryden Flight Research Center, Edwards, California. The Theseus aircraft, built and operated by Aurora Flight Sciences Corporation, Manassas, Virginia, was a unique aircraft flown at NASA's Dryden Flight Research Center, Edwards, California, under a cooperative agreement between NASA and Aurora. Dryden hosted the Theseus program, providing hangar space and range safety for flight testing. Aurora Flight Sciences was responsible for the actual flight testing, vehicle flight safety, and operation of the aircraft. The Theseus remotely piloted aircraft flew its maiden flight on May 24, 1996, at Dryden. During its sixth flight on November 12, 1996, Theseus experienced an in-flight structural failure that resulted in the loss of the aircraft. As of the beginning of the year 2000, Aurora had not rebuilt the aircraft. Theseus was built for NASA under an innovative, $4.9 million fixed-price contract by Aurora Flight Sciences Corporation and its partners, West Virginia University, Morgantown, West Virginia, and Fairmont State College, Fairmont, West Virginia. The twin-engine, unpiloted vehicle had a 140-foot wingspan, and was constructed largely of composite materials. Powered by two 80-horsepower, turbocharged piston engines that drove twin 9-foot-diameter propellers, Theseus was designed to fly autonomously at high altitudes, with takeoff and landing under the active control of a ground-based pilot in a ground control station 'cockpit.' With the potential ability to carry 700 pounds of science instruments to altitudes above 60,000 feet for durations of greater than 24 hours, Theseus was intended to support research in areas such as stratospheric ozone depletion and the atmospheric effects of future high-speed civil transport aircraft engines. Instruments carried aboard Theseus also would be able to validate satellite

  4. Cosmic radiation algorithm utilizing flight time tables

    International Nuclear Information System (INIS)

    Katja Kojo, M.Sc.; Mika Helminen, M.Sc.; Anssi Auvinen, M.D.Ph.D.; Katja Kojo, M.Sc.; Anssi Auvinen, M.D.Ph.D.; Gerhard Leuthold, D.Sc.

    2006-01-01

    Cosmic radiation is considerably higher on cruising altitudes used in aviation than at ground level. Exposure to cosmic radiation may increase cancer risk among pilots and cabin crew. The International Commission on Radiation Protection (ICRP) has recommended that air crew should be classified as radiation workers. Quantification of cosmic radiation doses is necessary for assessment of potential health effects of such occupational exposure. For Finnair cabin crew (cabin attendants and stewards), flight history is not available for years prior to 1991 and therefore, other sources of information on number and type of flights have to be used. The lack of systematically recorded information is a problem for dose estimation for many other flight companies personnel as well. Several cosmic radiation dose estimations for cabin crew have been performed using different methods (e.g. 2-5), but they have suffered from various shortcomings. Retrospective exposure estimation is not possible with personal portable dosimeters. Methods that employ survey data for occupational dose assessment are prone to non-differential measurement error i.e. the cabin attendants do not remember correctly the number of past flights. Assessment procedures that utilize surrogate measurement methods i.e. the duration of employment, lack precision. The aim of the present study was to develop an assessment method for individual occupational exposure to cosmic radiation based on flight time tables. Our method provides an assessment method that does not require survey data or systematic recording of flight history, and it is rather quick, inexpensive, and possible to carry out in all other flight companies whose past time tables for the past periods exist. Dose assessment methods that employ survey data are prone to random error i.e. the cabin attendants do not remember correctly the number or types of routes that they have flown during the past. Our method avoids this since survey data are not needed

  5. Flight research and testing

    Science.gov (United States)

    Putnam, Terrill W.; Ayers, Theodore G.

    1989-01-01

    Flight research and testing form a critical link in the aeronautic research and development chain. Brilliant concepts, elegant theories, and even sophisticated ground tests of flight vehicles are not sufficient to prove beyond a doubt that an unproven aeronautical concept will actually perform as predicted. Flight research and testing provide the ultimate proof that an idea or concept performs as expected. Ever since the Wright brothers, flight research and testing were the crucible in which aeronautical concepts were advanced and proven to the point that engineers and companies are willing to stake their future to produce and design aircraft. This is still true today, as shown by the development of the experimental X-30 aerospace plane. The Dryden Flight Research Center (Ames-Dryden) continues to be involved in a number of flight research programs that require understanding and characterization of the total airplane in all the aeronautical disciplines, for example the X-29. Other programs such as the F-14 variable-sweep transition flight experiment have focused on a single concept or discipline. Ames-Dryden also continues to conduct flight and ground based experiments to improve and expand the ability to test and evaluate advanced aeronautical concepts. A review of significant aeronautical flight research programs and experiments is presented to illustrate both the progress being made and the challenges to come.

  6. Flight Standards Automation System -

    Data.gov (United States)

    Department of Transportation — FAVSIS supports Flight Standards Service (AFS) by maintaining their information on entities such as air carriers, air agencies, designated airmen, and check airmen....

  7. X-43A Flight Controls

    Science.gov (United States)

    Baumann, Ethan

    2006-01-01

    A viewgraph presentation detailing X-43A Flight controls at NASA Dryden Flight Research Center is shown. The topics include: 1) NASA Dryden, Overview and current and recent flight test programs; 2) Unmanned Aerial Vehicle Synthetic Aperture Radar (UAVSAR) Program, Program Overview and Platform Precision Autopilot; and 3) Hyper-X Program, Program Overview, X-43A Flight Controls and Flight Results.

  8. Clear Skies and Grey Areas: Flight Attendants’ Secondhand Smoke Exposure and Attitudes toward Smoke-Free Policy 25 Years since Smoking was Banned on Airplanes

    Directory of Open Access Journals (Sweden)

    Frances A. Stillman

    2015-06-01

    Full Text Available Our objective was to provide descriptive data on flight attendant secondhand smoke (SHS exposure in the work environment, and to examine attitudes toward SHS exposure, personal health, and smoke-free policy in the workplace and public places. Flight attendants completed a web-based survey of self-reported SHS exposure and air quality in the work environment. We assessed the frequency and duration of SHS exposure in distinct areas of the workplace, attitudes toward SHS exposure and its health effects, and attitudes toward smoke-free policy in the workplace as well as general public places. A total of 723 flight attendants participated in the survey, and 591 responded to all survey questions. The mean level of exposure per flight attendant over the past month was 249 min. The majority of participants reported being exposed to SHS always/often in outdoor areas of an airport (57.7%. Participants who worked before the in-flight smoking ban (n = 240 were more likely to support further smoking policies in airports compared to participants who were employed after the ban (n = 346 (76.7% versus 60.4%, p-value < 0.01. Flight attendants are still being exposed to SHS in the workplace, sometimes at concerning levels during the non-flight portions of their travel. Flight attendants favor smoke-free policies and want to see further restrictions in airports and public places.

  9. Metabolic Syndrome among Undergraduate Students Attending ...

    African Journals Online (AJOL)

    Methods: A total of 384 first-year students attending university medical clinics for obligatory medical ... Keywords: Metabolic syndrome, Obesity, Hypertension, Diabetes, Dyslipidemia, ..... requires the attention of all health professionals.

  10. Employee Lounge Attendant | IDRC - International Development ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Job Summary Under the direction of the Chief, Conference Management, the Employee Lounge Attendant is responsible to prepare coffee, beverages, and ... The incumbent also assists with food preparation for daily meals as well as ensure ...

  11. Physical Environmental Barriers to School Attendance among ...

    African Journals Online (AJOL)

    environment were the major barriers to school attendance. Conclusion: To ... Key words: Parents/caregivers, children with disabilities, barriers. Introduction .... It is not safe to walk ... feeling, learning, behaviour, and fits or convulsions. [19] The ...

  12. Attendance and Exam Performance at University

    OpenAIRE

    David O. Allen; Don J. Webber

    2006-01-01

    Marburger (2006) explored the link between absenteeism and exam performance by assessing the impact on absenteeism of removing a university wide policy of mandatory attendance for a single class. His results indicate that while an attendance policy has a strong impact on reducing absenteeism the link between absenteeism and exam performance is weak.This paper presents an alternative exploration into the link between absenteeism and exam performance by assessing the impact of implementing a mo...

  13. Initial Flight Test of the Production Support Flight Control Computers at NASA Dryden Flight Research Center

    Science.gov (United States)

    Carter, John; Stephenson, Mark

    1999-01-01

    The NASA Dryden Flight Research Center has completed the initial flight test of a modified set of F/A-18 flight control computers that gives the aircraft a research control law capability. The production support flight control computers (PSFCC) provide an increased capability for flight research in the control law, handling qualities, and flight systems areas. The PSFCC feature a research flight control processor that is "piggybacked" onto the baseline F/A-18 flight control system. This research processor allows for pilot selection of research control law operation in flight. To validate flight operation, a replication of a standard F/A-18 control law was programmed into the research processor and flight-tested over a limited envelope. This paper provides a brief description of the system, summarizes the initial flight test of the PSFCC, and describes future experiments for the PSFCC.

  14. Where There Are (Few) Skilled Birth Attendants

    Science.gov (United States)

    Prata, Ndola; Rowen, Tami; Bell, Suzanne; Walsh, Julia; Potts, Malcolm

    2011-01-01

    Recent efforts to reduce maternal mortality in developing countries have focused primarily on two long-term aims: training and deploying skilled birth attendants and upgrading emergency obstetric care facilities. Given the future population-level benefits, strengthening of health systems makes excellent strategic sense but it does not address the immediate safe-delivery needs of the estimated 45 million women who are likely to deliver at home, without a skilled birth attendant. There are currently 28 countries from four major regions in which fewer than half of all births are attended by skilled birth attendants. Sixty-nine percent of maternal deaths in these four regions can be attributed to these 28 countries, despite the fact that these countries only constitute 34% of the total population in these regions. Trends documenting the change in the proportion of births accompanied by a skilled attendant in these 28 countries over the last 15-20 years offer no indication that adequate change is imminent. To rapidly reduce maternal mortality in regions where births in the home without skilled birth attendants are common, governments and community-based organizations could implement a cost-effective, complementary strategy involving health workers who are likely to be present when births in the home take place. Training community-based birth attendants in primary and secondary prevention technologies (e.g. misoprostol, family planning, measurement of blood loss, and postpartum care) will increase the chance that women in the lowest economic quintiles will also benefit from global safe motherhood efforts. PMID:21608417

  15. Epidemiology of frequent attenders: a 3-year historic cohort study comparing attendance, morbidity and prescriptions of one-year and persistent frequent attenders

    Directory of Open Access Journals (Sweden)

    ter Riet Gerben

    2009-01-01

    Full Text Available Abstract Background General Practitioners spend a disproportionate amount of time on frequent attenders. So far, trials on the effect of interventions on frequent attenders have shown negative results. However, these trials were conducted in short-term frequent attenders. It would be more reasonable to target intervention at persistent frequent attenders. Typical characteristics of persistent frequent attenders, as opposed to 1-year frequent attenders and non-frequent attenders, may generate hypotheses regarding modifiable factors on which new randomized trials may be designed. Methods We used the data of all 28,860 adult patients from 5 primary healthcare centers. Frequent attenders were patients whose attendance rate ranked in the (age and sex adjusted top 10 percent during 1 year (1-year frequent attenders or 3 years (persistent frequent attenders. All other patients on the register over the 3-year period were referred to as non-frequent attenders. The lists of medical problems coded by the GP using the International Classification of Primary Care (ICPC were used to assess morbidity. First, we determined which proportion of 1-year frequent attenders was still a frequent attender during the next two consecutive years and calculated the GPs' workload for these patients. Second, we compared morbidity and number of prescriptions for non-frequent attenders, 1-year frequent attenders and persistent frequent attenders. Results Of all 1-year frequent attenders, 15.4% became a persistent frequent attender equal to 1.6% of all patients. The 1-year frequent attenders (3,045; 10.6% were responsible for 39% of the face-to-face consultations; the 470 patients who would become persistent frequent attenders (1.6% were responsible for 8% of all consultations in 2003. Persistent frequent attenders presented more social problems, more psychiatric problems and medically unexplained physical symptoms, but also more chronic somatic diseases (especially diabetes

  16. Core Flight Software

    Data.gov (United States)

    National Aeronautics and Space Administration — The AES Core Flight Software (CFS) project purpose is to analyze applicability, and evolve and extend the reusability of the CFS system originally developed by...

  17. Adaptive structures flight experiments

    Science.gov (United States)

    Martin, Maurice

    The topics are presented in viewgraph form and include the following: adaptive structures flight experiments; enhanced resolution using active vibration suppression; Advanced Controls Technology Experiment (ACTEX); ACTEX program status; ACTEX-2; ACTEX-2 program status; modular control patch; STRV-1b Cryocooler Vibration Suppression Experiment; STRV-1b program status; Precision Optical Bench Experiment (PROBE); Clementine Spacecraft Configuration; TECHSAT all-composite spacecraft; Inexpensive Structures and Materials Flight Experiment (INFLEX); and INFLEX program status.

  18. Magnesium and Space Flight

    Directory of Open Access Journals (Sweden)

    Scott M. Smith

    2015-12-01

    Full Text Available Magnesium is an essential nutrient for muscle, cardiovascular, and bone health on Earth, and during space flight. We sought to evaluate magnesium status in 43 astronauts (34 male, 9 female; 47 ± 5 years old, mean ± SD before, during, and after 4–6-month space missions. We also studied individuals participating in a ground analog of space flight (head-down-tilt bed rest; n = 27 (17 male, 10 female, 35 ± 7 years old. We evaluated serum concentration and 24-h urinary excretion of magnesium, along with estimates of tissue magnesium status from sublingual cells. Serum magnesium increased late in flight, while urinary magnesium excretion was higher over the course of 180-day space missions. Urinary magnesium increased during flight but decreased significantly at landing. Neither serum nor urinary magnesium changed during bed rest. For flight and bed rest, significant correlations existed between the area under the curve of serum and urinary magnesium and the change in total body bone mineral content. Tissue magnesium concentration was unchanged after flight and bed rest. Increased excretion of magnesium is likely partially from bone and partially from diet, but importantly, it does not come at the expense of muscle tissue stores. While further study is needed to better understand the implications of these findings for longer space exploration missions, magnesium homeostasis and tissue status seem well maintained during 4–6-month space missions.

  19. Magnesium and Space Flight

    Science.gov (United States)

    Smith, Scott M.; Zwart, Sara R.

    2015-01-01

    Magnesium is an essential nutrient for muscle, cardiovascular, and bone health on Earth, and during space flight. We sought to evaluate magnesium status in 43 astronauts (34 male, 9 female; 47 ± 5 years old, mean ± SD) before, during, and after 4–6-month space missions. We also studied individuals participating in a ground analog of space flight (head-down-tilt bed rest; n = 27 (17 male, 10 female), 35 ± 7 years old). We evaluated serum concentration and 24-h urinary excretion of magnesium, along with estimates of tissue magnesium status from sublingual cells. Serum magnesium increased late in flight, while urinary magnesium excretion was higher over the course of 180-day space missions. Urinary magnesium increased during flight but decreased significantly at landing. Neither serum nor urinary magnesium changed during bed rest. For flight and bed rest, significant correlations existed between the area under the curve of serum and urinary magnesium and the change in total body bone mineral content. Tissue magnesium concentration was unchanged after flight and bed rest. Increased excretion of magnesium is likely partially from bone and partially from diet, but importantly, it does not come at the expense of muscle tissue stores. While further study is needed to better understand the implications of these findings for longer space exploration missions, magnesium homeostasis and tissue status seem well maintained during 4–6-month space missions. PMID:26670248

  20. Father Attendance in Nurse Home Visitation

    Science.gov (United States)

    Holmberg, John R.; Olds, David L.

    2015-01-01

    Our aim was to examine the rates and predictors of father attendance at nurse home visits in replication sites of the Nurse-Family Partnership (NFP). Early childhood programs can facilitate father involvement in the lives of their children, but program improvements require an understanding of factors that predict father involvement. The sample consisted of 29,109 low-income, first-time mothers who received services from 694 nurses from 80 sites. We conducted mixed-model multiple regression analyses to identify population, implementation, site, and nurse influences on father attendance. Predictors of father attendance included a count of maternal visits (B = 0.12, SE = 0.01, F = 3101.77), frequent contact between parents (B = 0.61, SE = 0.02, F = 708.02), cohabitation (B = 1.41, SE = 0.07, F = 631.51), White maternal race (B = 0.77, SE = 0.06, F = 190.12), and marriage (B = 0.42, SE = 0.08, F = 30.08). Random effects for sites and nurses predicted father-visit participation (2.7 & 6.7% of the variance, respectively), even after controlling for population sociodemographic characteristics. These findings suggest that factors operating at the levels of sites and nurses influence father attendance at home visits, even after controlling for differences in populations served. Further inquiry about these influences on father visit attendance is likely to inform program-improvement efforts. PMID:25521707

  1. An Analysis of Florida's School Districts' Attendance Policies and their Relationship to High School Attendance Rates

    Science.gov (United States)

    Reardon, Ryan Turner

    2008-01-01

    The purpose of this non-experimental correlational study was to determine the relationship between the type of attendance policies in the high schools of the 67 Florida school districts, the size of the school district (number of high school students), the socioeconomic status SES) of the school district, and the average daily attendance rate of…

  2. Does Attendance Matter? An Examination of Student Attitudes, Participation, Performance and Attendance

    Science.gov (United States)

    Massingham, Peter; Herrington, Tony

    2006-01-01

    Non attendance of lectures and tutorials appears to be a growing trend. The literature suggests many possible reasons including students' changing lifestyle, attitudes, teaching and technology. This paper looks at the reasons for non attendance of students in the Faculty of Commerce at the University of Wollongong and identifies relationships…

  3. RFID and IOT for Attendance Monitoring System

    Directory of Open Access Journals (Sweden)

    Dedy Irawan Joseph

    2018-01-01

    Full Text Available In recent years, RFID technology has been widely used in various sectors, such as in-education, transportation, agriculture, animal husbandry, store sales and other sectors. RFID utilization in education is student attendance monitoring system, by using Internet of Things (IoT and Cloud technology, it will produce a real time attendance monitoring system that can be accessed by various parties, such as lecturer, campus administration and parents. With this monitoring system if there are students who are not present can be immediately discovered and can be taken immediate action and the learning process can run smoothly.

  4. DAST in Flight

    Science.gov (United States)

    1980-01-01

    The modified BQM-34 Firebee II drone with Aeroelastic Research Wing (ARW-1), a supercritical airfoil, during a 1980 research flight. The remotely-piloted vehicle, which was air launched from NASA's NB-52B mothership, participated in the Drones for Aerodynamic and Structural Testing (DAST) program which ran from 1977 to 1983. The DAST 1 aircraft (Serial #72-1557), pictured, crashed on 12 June 1980 after its right wing ripped off during a test flight near Cuddeback Dry Lake, California. The crash occurred on the modified drone's third free flight. These are the image contact sheets for each image resolution of the NASA Dryden Drones for Aerodynamic and Structural Testing (DAST) Photo Gallery. From 1977 to 1983, the Dryden Flight Research Center, Edwards, California, (under two different names) conducted the DAST Program as a high-risk flight experiment using a ground-controlled, pilotless aircraft. Described by NASA engineers as a 'wind tunnel in the sky,' the DAST was a specially modified Teledyne-Ryan BQM-34E/F Firebee II supersonic target drone that was flown to validate theoretical predictions under actual flight conditions in a joint project with the Langley Research Center, Hampton, Virginia. The DAST Program merged advances in electronic remote control systems with advances in airplane design. Drones (remotely controlled, missile-like vehicles initially developed to serve as gunnery targets) had been deployed successfully during the Vietnamese conflict as reconnaissance aircraft. After the war, the energy crisis of the 1970s led NASA to seek new ways to cut fuel use and improve airplane efficiency. The DAST Program's drones provided an economical, fuel-conscious method for conducting in-flight experiments from a remote ground site. DAST explored the technology required to build wing structures with less than normal stiffness. This was done because stiffness requires structural weight but ensures freedom from flutter-an uncontrolled, divergent oscillation of

  5. Capital Flight and Economic Performance

    OpenAIRE

    Beja, Edsel Jr.

    2007-01-01

    Capital flight aggravates resource constraints and contributes to undermine long-term economic growth. Counterfactual calculations on the Philippines suggest that capital flight contributed to lower the quality of long-term economic growth. Sustained capital flight over three decades means that capital flight had a role for the Philippines to lose the opportunities to achieve economic takeoff. Unless decisive policy actions are taken up to address enduring capital flight and manage the macroe...

  6. Recent estimates of capital flight

    OpenAIRE

    Claessens, Stijn; Naude, David

    1993-01-01

    Researchers and policymakers have in recent years paid considerable attention to the phenomenon of capital flight. Researchers have focused on four questions: What concept should be used to measure capital flight? What figure for capital flight will emerge, using this measure? Can the occurrence and magnitude of capital flight be explained by certain (economic) variables? What policy changes can be useful to reverse capital flight? The authors focus strictly on presenting estimates of capital...

  7. Perseus Post-flight

    Science.gov (United States)

    1991-01-01

    Crew members check out the Perseus proof-of-concept vehicle on Rogers Dry Lake, adjacent to the Dryden Flight Research Center, Edwards, California, after a test flight in 1991. Perseus B is a remotely piloted aircraft developed as a design-performance testbed under NASA's Environmental Research Aircraft and Sensor Technology (ERAST) project. Perseus is one of several flight vehicles involved in the ERAST project. A piston engine, propeller-powered aircraft, Perseus was designed and built by Aurora Flight Sciences Corporation, Manassas, Virginia. The objectives of Perseus B's ERAST flight tests have been to reach and maintain horizontal flight above altitudes of 60,000 feet and demonstrate the capability to fly missions lasting from 8 to 24 hours, depending on payload and altitude requirements. The Perseus B aircraft established an unofficial altitude record for a single-engine, propeller-driven, remotely piloted aircraft on June 27, 1998. It reached an altitude of 60,280 feet. In 1999, several modifications were made to the Perseus aircraft including engine, avionics, and flight-control-system improvements. These improvements were evaluated in a series of operational readiness and test missions at the Dryden Flight Research Center, Edwards, California. Perseus is a high-wing monoplane with a conventional tail design. Its narrow, straight, high-aspect-ratio wing is mounted atop the fuselage. The aircraft is pusher-designed with the propeller mounted in the rear. This design allows for interchangeable scientific-instrument payloads to be placed in the forward fuselage. The design also allows for unobstructed airflow to the sensors and other devices mounted in the payload compartment. The Perseus B that underwent test and development in 1999 was the third generation of the Perseus design, which began with the Perseus Proof-Of-Concept aircraft. Perseus was initially developed as part of NASA's Small High-Altitude Science Aircraft (SHASA) program, which later evolved

  8. Eclipse takeoff and flight

    Science.gov (United States)

    1998-01-01

    This 25-second clip shows the QF-106 'Delta Dart' tethered to the USAF C-141A during takeoff and in flight. NASA Dryden Flight Research Center, Edwards, California, supported a Kelly Space and Technology, Inc. (KST)/U.S. Air Force project known as Eclipse, which demonstrated a reusable tow launch vehicle concept. The purpose of the project was to demonstrate a reusable tow launch vehicle concept that had been conceived and patented by KST. Kelly Space obtained a contract with the USAF Research Laboratory for the tow launch demonstration project under the Small Business Innovation Research (SBIR) program. The USAF SBIR contract included the modifications to turn the QF-106 into the Experimental Demonstrator #1 (EXD-01), and the C141A aircraft to incorporate the tow provisions to link the two aircraft, as well as conducting flight tests. The demonstration consisted of ground and flight tests. These tests included a Combined Systems Test of both airplanes joined by a tow rope, a towed taxi test, and six towed flights. The primary goal of the project was demonstrating the tow phase of the Eclipse concept using a scaled-down tow aircraft (C-141A) and a representative aerodynamically-shaped aircraft (QF-106A) as a launch vehicle. This was successfully accomplished. On December 20, 1997, NASA research pilot Mark Stucky flew a QF-106 on the first towed flight behind an Air Force C-141 in the joint Eclipse project with KST to demonstrate the reusable tow launch vehicle concept developed by KST. Kelly hoped to use the data from the tow tests to validate a tow-to-launch procedure for reusable space launch vehicles. Stucky flew six successful tow tests between December 1997 and February 6, 1998. On February 6, 1998, the sixth and final towed flight brought the project to a successful completion. Preliminary flight results determined that the handling qualities of the QF-106 on tow were very stable; actual flight measured values of tow rope tension were well within predictions

  9. Aerodynamics of bird flight

    Directory of Open Access Journals (Sweden)

    Dvořák Rudolf

    2016-01-01

    Full Text Available Unlike airplanes birds must have either flapping or oscillating wings (the hummingbird. Only such wings can produce both lift and thrust – two sine qua non attributes of flying.The bird wings have several possibilities how to obtain the same functions as airplane wings. All are realized by the system of flight feathers. Birds have also the capabilities of adjusting the shape of the wing according to what the immediate flight situation demands, as well as of responding almost immediately to conditions the flow environment dictates, such as wind gusts, object avoidance, target tracking, etc. In bird aerodynamics also the tail plays an important role. To fly, wings impart downward momentum to the surrounding air and obtain lift by reaction. How this is achieved under various flight situations (cruise flight, hovering, landing, etc., and what the role is of the wing-generated vortices in producing lift and thrust is discussed.The issue of studying bird flight experimentally from in vivo or in vitro experiments is also briefly discussed.

  10. Flight Planning in the Cloud

    Science.gov (United States)

    Flores, Sarah L.; Chapman, Bruce D.; Tung, Waye W.; Zheng, Yang

    2011-01-01

    This new interface will enable Principal Investigators (PIs), as well as UAVSAR (Uninhabited Aerial Vehicle Synthetic Aperture Radar) members to do their own flight planning and time estimation without having to request flight lines through the science coordinator. It uses an all-in-one Google Maps interface, a JPL hosted database, and PI flight requirements to design an airborne flight plan. The application will enable users to see their own flight plan being constructed interactively through a map interface, and then the flight planning software will generate all the files necessary for the flight. Afterward, the UAVSAR team can then complete the flight request, including calendaring and supplying requisite flight request files in the expected format for processing by NASA s airborne science program. Some of the main features of the interface include drawing flight lines on the map, nudging them, adding them to the current flight plan, and reordering them. The user can also search and select takeoff, landing, and intermediate airports. As the flight plan is constructed, all of its components are constantly being saved to the database, and the estimated flight times are updated. Another feature is the ability to import flight lines from previously saved flight plans. One of the main motivations was to make this Web application as simple and intuitive as possible, while also being dynamic and robust. This Web application can easily be extended to support other airborne instruments.

  11. Incidence of cancer among Finnish airline cabin attendants. 1967-92

    Energy Technology Data Exchange (ETDEWEB)

    Pukkala, E. [Finnish Cancer Registry, Helsinki (Finland); Auvinen, A. [Finnish Centre for Radiation and Nuclear Safety (STUK), Helsinki (Finland); Wahlberg, G. [Finnish Flight Attendants Association, Helsinki (Finland)

    1995-09-09

    The objective was to assess whether occupational exposure among commercial airline cabin attendants are associated with risk of cancer. A significant excess of breast cancer (standardised incidence ratio 1.87 (95% confidence interval 1.15 to 2.23)) and bone cancer (15.10 (1.82 to 54.40)) was found among female workers. The risk of breast cancer was most prominent 15 years after recruitment. Risks of leukaemia (3.57 (0.43 to 12.9)) and skin melanoma (2.11 (0.43 to 6.15)) were not significantly raised. Among men, one lymphoma and one Kaposi`s sarcoma were found (expected number of cases 1.6). Although the lifestyle of cabin attendants is different from that of the reference population - for example, in terms of social status and parity - concentration of the excess risks to primary sites sensitive to radiation suggests that ionising radiation during flights may add to that cancer risk of all flight personnel. Otherwise the lifestyle of cabin attendants did not seem to affect their risks of cancer. (author).

  12. Incidence of cancer among Finnish airline cabin attendants. 1967-92

    International Nuclear Information System (INIS)

    Pukkala, E.; Auvinen, A.; Wahlberg, G.

    1995-01-01

    The objective was to assess whether occupational exposure among commercial airline cabin attendants are associated with risk of cancer. A significant excess of breast cancer (standardised incidence ratio 1.87 (95% confidence interval 1.15 to 2.23)) and bone cancer (15.10 (1.82 to 54.40)) was found among female workers. The risk of breast cancer was most prominent 15 years after recruitment. Risks of leukaemia (3.57 (0.43 to 12.9)) and skin melanoma (2.11 (0.43 to 6.15)) were not significantly raised. Among men, one lymphoma and one Kaposi's sarcoma were found (expected number of cases 1.6). Although the lifestyle of cabin attendants is different from that of the reference population - for example, in terms of social status and parity - concentration of the excess risks to primary sites sensitive to radiation suggests that ionising radiation during flights may add to that cancer risk of all flight personnel. Otherwise the lifestyle of cabin attendants did not seem to affect their risks of cancer. (author)

  13. E-learning in Multicultural Environments: An Analysis of Online Flight Attendant Training

    Science.gov (United States)

    de Brito Neto, Jose Felix; Smith, MaryJo; Pedersen, David

    2014-01-01

    Throughout the first decade of this century, financial challenges in the airline industry compelled airlines to maximize competitive advantage through a focus on human resource management. Consequently, e-learning gained increasing attention as it imparted knowledge on an asynchronous and global basis with substantially reduced costs. However,…

  14. Flight Attendant Fatigue. Part 6: Fatigue Countermeasure Training and Potential Benefits

    Science.gov (United States)

    2009-10-01

    large. scale. surveys.of. shiftwork.facilities.have. linked.fatigue. and. shiftwork. training. to. reduced. turnover,. reduced. absenteeism ...dubas,.k ..(1986) ..The shiftworkers guide to better sleep, health and family/social relations. lincoln,. ne:.synchrotech . 14 .. saskatchewan. labour

  15. Perseus in Flight

    Science.gov (United States)

    1991-01-01

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

  16. Swaziland's traditional birth attendants survey | Lech | African ...

    African Journals Online (AJOL)

    The Traditional Birth Attendants (TBAs) Survey in Swaziland was undertaken between March 27th 1996 and April 8th 1996. The objective of the survey was to generate reliable information regarding activities of TBAs in Swaziland. The survey was conducted in 25 Chiefdoms sampled out of a total of 206 Chiefdoms ...

  17. Differential campsite pricing and campground attendance

    Science.gov (United States)

    Wilbur F. LaPage; Paula L. Cormier; George T. Hamilton; Alan D. Cormier

    1975-01-01

    Several changes in the characteristics of campers' visits were discovered by comparing camping permit data before and after the start of differential campsite pricing at a New Hampshire state park campground in 1973. Differentials included a premium charge for waterfront sites and a preferential rate for New Hampshire residents. Attendance by state residents...

  18. Service Station Attendant. Performance Objectives. Basic Course.

    Science.gov (United States)

    Davis, John

    Several intermediate performance objectives and corresponding criterion measures are listed for each of 24 terminal objectives for a basic secondary level service station attendant course. The materials were developed for a two-semester course (2 and 3 hours daily). The specialized classroom and shop experiences are designed to enable the student…

  19. Vaginal Trichomoniasis among Patients Attending Primary Health ...

    African Journals Online (AJOL)

    Trichomoniasis is widely distributed all over the world and remains a common infection among female patients attending sexually transmitted disease clinics. The aim of this study is to determine the prevalence of trichomonal infection in HIV/AIDS and non-HIV control groups of patients in a population of women.

  20. Electronic Attendance Application Using Raspberry Pi

    International Nuclear Information System (INIS)

    Mohd Dzul Aiman Aslan; Saaidi Ismail; Mohamad Safuan Sulaiman

    2016-01-01

    Raspberry Pi is a cheap mini-computer that officially runs on a Linux distribution Operating System (OS) such as Raspbian. It has many input and output mechanisms simulating a computer which make it useful replacement for a computer system. SimpleCV, an open source python-based image processing software and Telegram, a popular social application provide API that allow communication trough a device such as Raspberry Pi. Combining these two, an electronic attendance has been developed using open source basis, and the electronic attendance also provide enhancement of current system that is to record the person face and sending information through Telegram application. The methodology include gathering requirements on remaining system and test it on Linux which will discuss further. This project is serve as a prototype for enhancement of current Commersial Of The Shelf (COTS) electronic attendance that only record ID of the attendees. In the future, the electronic attendance can be enhanced with many features and should be make in-a-box for commercialization. (author)

  1. Attendance at NHS mandatory training sessions.

    Science.gov (United States)

    Brand, Darren

    2015-02-17

    To identify factors that affect NHS healthcare professionals' attendance at mandatory training sessions. A quantitative approach was used, with a questionnaire sent to 400 randomly selected participants. A total of 122 responses were received, providing a mix of qualitative and quantitative data. Quantitative data were analysed using statistical methods. Open-ended responses were reviewed using thematic analysis. Clinical staff value mandatory training sessions highly. They are aware of the requirement to keep practice up-to-date and ensure patient safety remains a priority. However, changes to the delivery format of mandatory training sessions are required to enable staff to participate more easily, as staff are often unable to attend. The delivery of mandatory training should move from classroom-based sessions into the clinical area to maximise participation. Delivery should be assisted by local 'experts' who are able to customise course content to meet local requirements and the requirements of different staff groups. Improved arrangements to provide staff cover, for those attending training, would enable more staff to attend training sessions.

  2. Psychological distress and symptoms among patients attending ...

    African Journals Online (AJOL)

    Background: The study was carried out to investigate the manifestations of psychological distress and symptoms among individuals receiving treatment for sexually transmitted diseases and to compare them with individuals who were not suffering from sexually transmitted diseases. Methods: Patients attending the sexually ...

  3. Malaria parasitemia amongst pregnant women attending selected ...

    African Journals Online (AJOL)

    A cross-sectional study to determine malaria parasitemia amongst 300 randomly selected pregnant women attending government and private healthcare facilities in Rivers State was carried out. Blood samples were obtained through venous procedure and the presence or absence of Plasmodium was determined ...

  4. Flight calls and orientation

    DEFF Research Database (Denmark)

    Larsen, Ole Næsbye; Andersen, Bent Bach; Kropp, Wibke

    2008-01-01

    flight calls was simulated by sequential computer controlled activation of five loudspeakers placed in a linear array perpendicular to the bird's migration course. The bird responded to this stimulation by changing its migratory course in the direction of that of the ‘flying conspecifics' but after about......  In a pilot experiment a European Robin, Erithacus rubecula, expressing migratory restlessness with a stable orientation, was video filmed in the dark with an infrared camera and its directional migratory activity was recorded. The flight overhead of migrating conspecifics uttering nocturnal...... 30 minutes it drifted back to its original migration course. The results suggest that songbirds migrating alone at night can use the flight calls from conspecifics as additional cues for orientation and that they may compare this information with other cues to decide what course to keep....

  5. ALOFT Flight Test Report

    Science.gov (United States)

    1977-10-01

    wmmmmmmmmmmmm i ifmu.immM\\]i\\ ßinimm^mmmmviwmmiwui »vimtm twfjmmmmmmi c-f—rmSmn NWC TP 5954 ALOFT Flight Test Report by James D. Ross anrJ I.. M...responsible i"- u conducting the ALOFT Flight Test Program and made contributions to this report: J. Basden , R. ".estbrook, L. Thompson, J. Willians...REPORT DOCUMENTATION PAGE READ INSTRUCTIONS BEFORE COMPLETING FORM 7. AUTMORC«; <oss James D./Xo L. M.y&ohnson IZATION NAME AND ADDRESS Naval

  6. Range Flight Safety Requirements

    Science.gov (United States)

    Loftin, Charles E.; Hudson, Sandra M.

    2018-01-01

    The purpose of this NASA Technical Standard is to provide the technical requirements for the NPR 8715.5, Range Flight Safety Program, in regards to protection of the public, the NASA workforce, and property as it pertains to risk analysis, Flight Safety Systems (FSS), and range flight operations. This standard is approved for use by NASA Headquarters and NASA Centers, including Component Facilities and Technical and Service Support Centers, and may be cited in contract, program, and other Agency documents as a technical requirement. This standard may also apply to the Jet Propulsion Laboratory or to other contractors, grant recipients, or parties to agreements to the extent specified or referenced in their contracts, grants, or agreements, when these organizations conduct or participate in missions that involve range flight operations as defined by NPR 8715.5.1.2.2 In this standard, all mandatory actions (i.e., requirements) are denoted by statements containing the term “shall.”1.3 TailoringTailoring of this standard for application to a specific program or project shall be formally documented as part of program or project requirements and approved by the responsible Technical Authority in accordance with NPR 8715.3, NASA General Safety Program Requirements.

  7. Weather and Flight Testing

    Science.gov (United States)

    Wiley, Scott

    2007-01-01

    This viewgraph document reviews some of the weather hazards involved with flight testing. Some of the hazards reviewed are: turbulence, icing, thunderstorms and winds and windshear. Maps, pictures, satellite pictures of the meteorological phenomena and graphs are included. Also included are pictures of damaged aircraft.

  8. Pegasus hypersonic flight research

    Science.gov (United States)

    Curry, Robert E.; Meyer, Robert R., Jr.; Budd, Gerald D.

    1992-01-01

    Hypersonic aeronautics research using the Pegasus air-launched space booster is described. Two areas are discussed in the paper: previously obtained results from Pegasus flights 1 and 2, and plans for future programs. Proposed future research includes boundary-layer transition studies on the airplane-like first stage and also use of the complete Pegasus launch system to boost a research vehicle to hypersonic speeds. Pegasus flight 1 and 2 measurements were used to evaluate the results of several analytical aerodynamic design tools applied during the development of the vehicle as well as to develop hypersonic flight-test techniques. These data indicated that the aerodynamic design approach for Pegasus was adequate and showed that acceptable margins were available. Additionally, the correlations provide insight into the capabilities of these analytical tools for more complex vehicles in which design margins may be more stringent. Near-term plans to conduct hypersonic boundary-layer transition studies are discussed. These plans involve the use of a smooth metallic glove at about the mid-span of the wing. Longer-term opportunities are proposed which identify advantages of the Pegasus launch system to boost large-scale research vehicles to the real-gas hypersonic flight regime.

  9. Flight telerobotic servicer legacy

    Science.gov (United States)

    Shattuck, Paul L.; Lowrie, James W.

    1992-11-01

    The Flight Telerobotic Servicer (FTS) was developed to enhance and provide a safe alternative to human presence in space. The first step for this system was a precursor development test flight (DTF-1) on the Space Shuttle. DTF-1 was to be a pathfinder for manned flight safety of robotic systems. The broad objectives of this mission were three-fold: flight validation of telerobotic manipulator (design, control algorithms, man/machine interfaces, safety); demonstration of dexterous manipulator capabilities on specific building block tasks; and correlation of manipulator performance in space with ground predictions. The DTF-1 system is comprised of a payload bay element (7-DOF manipulator with controllers, end-of-arm gripper and camera, telerobot body with head cameras and electronics module, task panel, and MPESS truss) and an aft flight deck element (force-reflecting hand controller, crew restraint, command and display panel and monitors). The approach used to develop the DTF-1 hardware, software and operations involved flight qualification of components from commercial, military, space, and R controller, end-of-arm tooling, force/torque transducer) and the development of the telerobotic system for space applications. The system is capable of teleoperation and autonomous control (advances state of the art); reliable (two-fault tolerance); and safe (man-rated). Benefits from the development flight included space validation of critical telerobotic technologies and resolution of significant safety issues relating to telerobotic operations in the Shuttle bay or in the vicinity of other space assets. This paper discusses the lessons learned and technology evolution that stemmed from developing and integrating a dexterous robot into a manned system, the Space Shuttle. Particular emphasis is placed on the safety and reliability requirements for a man-rated system as these are the critical factors which drive the overall system architecture. Other topics focused on include

  10. Stroke in Commercial Flights.

    Science.gov (United States)

    Álvarez-Velasco, Rodrigo; Masjuan, Jaime; DeFelipe, Alicia; Corral, Iñigo; Estévez-Fraga, Carlos; Crespo, Leticia; Alonso-Cánovas, Araceli

    2016-04-01

    Stroke on board aircraft has been reported in retrospective case series, mainly focusing on economy class stroke syndrome. Data on the actual incidence, pathogenesis, and prognosis of stroke in commercial flights are lacking. A prospective registry was designed to include all consecutive patients referred from an international airport (40 million passengers a year) to our hospital with a diagnosis of ischemic stroke or transient ischemic attack and onset of symptoms during a flight or immediately after landing. Forty-four patients (32 ischemic strokes and 12 transient ischemic attacks) were included over a 76-month period (January 2008 to April 2014). The estimated incidence of stroke was 1 stroke in 35 000 flights. Pathogeneses of stroke or transient ischemic attack were atherothrombotic in 16 (36%), economy class stroke syndrome in 8 (18%), cardioembolic in 7 (16%), arterial dissection in 4 (9%), lacunar stroke in 4 (9%), and undetermined in 5 (12%) patients. Carotid stenosis >70% was found in 12 (27%) of the patients. Overall prognosis was good, and thrombolysis was applied in 44% of the cases. The most common reason for not treating patients who had experienced stroke onset midflight was the delay in reaching the hospital. Only 1 patient with symptom onset during the flight prompted a flight diversion. We found a low incidence of stroke in the setting of air travel. Economy class stroke syndrome and arterial dissection were well represented in our sample. However, the main pathogenesis was atherothrombosis with a high proportion of patients with high carotid stenosis. © 2016 American Heart Association, Inc.

  11. How the integration of traditional birth attendants with formal health systems can increase skilled birth attendance.

    Science.gov (United States)

    Byrne, Abbey; Morgan, Alison

    2011-11-01

    Forty years of safe motherhood programming has demonstrated that isolated interventions will not reduce maternal mortality sufficiently to achieve MDG 5. Although skilled birth attendants (SBAs) can intervene to save lives, traditional birth attendants (TBAs) are often preferred by communities. Considering the value of both TBAs and SBAs, it is important to review strategies for maximizing their respective strengths. To describe mechanisms to integrate TBAs with the health system to increase skilled birth attendance and examine the components of successful integration. A systematic review of interventions linking TBAs and formal health workers, measuring outcomes of skilled birth attendance, referrals, and facility deliveries. Thirty-three articles met the selection criteria. Mechanisms used for integration included training and supervision of TBAs, collaboration skills for health workers, inclusion of TBAs at health facilities, communication systems, and clear definition of roles. Impact on skilled birth attendance depended on selection of TBAs, community participation, and addressing barriers to access. Successful approaches were context-specific. The integration of TBAs with formal health systems increases skilled birth attendance. The greatest impact is seen when TBA integration is combined with complementary actions to overcome context-specific barriers to contact among SBAs, TBAs, and women. Copyright © 2011 International Federation of Gynecology and Obstetrics. Published by Elsevier Ireland Ltd. All rights reserved.

  12. Emergency department attendance patterns during Ramadan.

    Science.gov (United States)

    Butt, Taimur; Khan, Hameed Ullah; Ahmed, Israr; Eldali, Abdelmoneim

    2016-01-01

    Patient attendance in the emergency department (ED) is inherently variable and unpredictable. Resources might be better allocated if use of the ER could be predicted during the month of fasting (Ramadan), healthy adult Muslims do not eat or drink from dawn to sunset and in the Middle East, social activities occur mostly during night. There is no published data that has reported changes in local ED attendance pattern during Ramadan. Determine if there are differences in tertiary care ed attendance during Ramadan compared to other times of the year. Retrospective, using data from the hospital integrated clinical information system. Tertiary care institution in Riyadh, Saudi Arabia. All ED visits during the Islamic calendar years of 1431-1434 (December 18, 2009-October 13, 2013) were analyzed. Patient volume, acuity, demographics and admission rate variability between Ramadan and other months. During the study period of 4 years, of 226075 ED patients, 129178 (57.14%) patients were seen during the day shift (07:00 to 18:59). During Ramadan, 10 293 (60%) patients presented during the night shift compared with the day shift (P many ED patients were actually fasting during the study period. This study was conducted in a tertiary care hospital and the patient population presenting to our ed is predominantly Muslim; therefore, the results may not be generalized to populations that are not predominantly Muslim.

  13. Retrieving Balloon Data in Flight

    Data.gov (United States)

    National Aeronautics and Space Administration — NASA's Ultra Long Duration Balloon (ULDB) program will soon make flights lasting up to 100 days. Some flights may generate high data rates and retrieving this data...

  14. Bisphosphonate ISS Flight Experiment

    Science.gov (United States)

    LeBlanc, Adrian; Matsumoto, Toshio; Jones, Jeffrey; Shapiro, Jay; Lang, Thomas; Shackleford, Linda; Smith, Scott M.; Evans, Harlan; Spector, Elizabeth; Ploutz-Snyder, Robert; hide

    2014-01-01

    The bisphosphonate study is a collaborative effort between the NASA and JAXA space agencies to investigate the potential for antiresorptive drugs to mitigate bone changes associated with long-duration spaceflight. Elevated bone resorption is a hallmark of human spaceflight and bed rest (common zero-G analog). We tested whether an antiresorptive drug in combination with in-flight exercise would ameliorate bone loss and hypercalcuria during longduration spaceflight. Measurements include DXA, QCT, pQCT, and urine and blood biomarkers. We have completed analysis of 7 crewmembers treated with alendronate during flight and the immediate postflight (R+week) data collection in 5 of 10 controls without treatment. Both groups used the advanced resistive exercise device (ARED) during their missions. We previously reported the pre/postflight results of crew taking alendronate during flight (Osteoporosis Int. 24:2105-2114, 2013). The purpose of this report is to present the 12-month follow-up data in the treated astronauts and to compare these results with preliminary data from untreated crewmembers exercising with ARED (ARED control) or without ARED (Pre-ARED control). Results: the table presents DXA and QCT BMD expressed as percentage change from preflight in the control astronauts (18 Pre-ARED and the current 5 ARED-1-year data not yet available) and the 7 treated subjects. As shown previously the combination of exercise plus antiresorptive is effective in preventing bone loss during flight. Bone measures for treated subjects, 1 year after return from space remain at or near baseline values. Except in one region, the treated group maintained or gained bone 1 year after flight. Biomarker data are not currently available for either control group and therefore not presented. However, data from other studies with or without ARED show elevated bone resorption and urinary Ca excretion while bisphosphonate treated subjects show decreases during flight. Comparing the two control

  15. Crew Factors in Flight Operations X: Alertness Management in Flight Operations

    Science.gov (United States)

    Rosekind, Mark R.; Gander, Philippa H.; Connell, Linda J.; Co, Elizabeth L.

    2001-01-01

    In response to a 1980 congressional request, NASA Ames Research Center initiated a Fatigue/Jet Lag Program to examine fatigue, sleep loss, and circadian disruption in aviation. Research has examined fatigue in a variety of flight environments using a range of measures (from self-report to performance to physiological). In 1991, the program evolved into the Fatigue Countermeasures Program, emphasizing the development and evaluation of strategies to maintain alertness and performance in operational settings. Over the years, the Federal Aviation Administration (FAA) has become a collaborative partner in support of fatigue research and other Program activities. From the inception of the Program, a principal goal was to return the information learned from research and other Program activities to the operational community. The objectives of this Education and Training Module are to explain what has been learned about the physiological mechanisms that underlie fatigue, demonstrate the application of this information in flight operations, and offer some specific fatigue countermeasure recommendations. It is intended for all segments of the aeronautics industry, including pilots, flight attendants, managers, schedulers, safety and policy personnel, maintenance crews, and others involved in an operational environment that challenges human physiological capabilities because of fatigue, sleep loss, and circadian disruption.

  16. Daedalus - Last Dryden flight

    Science.gov (United States)

    1988-01-01

    The Daedalus 88, with Glenn Tremml piloting, is seen here on its last flight for the NASA Dryden Flight Research Center, Edwards, California. The Light Eagle and Daedalus human powered aircraft were testbeds for flight research conducted at Dryden between January 1987 and March 1988. These unique aircraft were designed and constructed by a group of students, professors, and alumni of the Massachusetts Institute of Technology within the context of the Daedalus project. The construction of the Light Eagle and Daedalus aircraft was funded primarily by the Anheuser Busch and United Technologies Corporations, respectively, with additional support from the Smithsonian Air and Space Museum, MIT, and a number of other sponsors. To celebrate the Greek myth of Daedalus, the man who constructed wings of wax and feathers to escape King Minos, the Daedalus project began with the goal of designing, building and testing a human-powered aircraft that could fly the mythical distance, 115 km. To achieve this goal, three aircraft were constructed. The Light Eagle was the prototype aircraft, weighing 92 pounds. On January 22, 1987, it set a closed course distance record of 59 km, which still stands. Also in January of 1987, the Light Eagle was powered by Lois McCallin to set the straight distance, the distance around a closed circuit, and the duration world records for the female division in human powered vehicles. Following this success, two more aircraft were built, the Daedalus 87 and Daedalus 88. Each aircraft weighed approximately 69 pounds. The Daedalus 88 aircraft was the ship that flew the 199 km from the Iraklion Air Force Base on Crete in the Mediterranean Sea, to the island of Santorini in 3 hours, 54 minutes. In the process, the aircraft set new records in distance and endurance for a human powered aircraft. The specific areas of flight research conducted at Dryden included characterizing the rigid body and flexible dynamics of the Light Eagle, investigating sensors for an

  17. The development of rhythmic attending in auditory sequences: attunement, referent period, focal attending.

    Science.gov (United States)

    Drake, C; Jones, M R; Baruch, C

    2000-12-15

    This paper is divided into three sections. The first section is theoretical; it extends Dynamic Attending Theory (Jones, M. R. Psychological Review 83 (1976) 323; Jones, M. R. Perception and Psychophysics 41(6) (1987) 631; Jones, M. R. Psychomusicology 9(2) (1990) 193; Jones, M. R., & Boltz, M. Psychological Review 96(3) (1989) 459) to developmental questions concerning tempo and time hierarchies. Generally Dynamic Attending Theory proposes that, when listening to a complex auditory sequence, listeners spontaneously focus on events occurring at an intermediate rate (the referent level), and they then may shift attention to events occurring over longer or shorter time spans, that is at lower (faster) or higher (slower) hierarchical levels (focal attending). The second section of the paper is experimental. It examines maturational changes of three dynamic attending activities involving referent period and level, attunement, and focal attending. Tasks involve both motor tapping (including spontaneous motor tempo and synchronization with simple sequences and music) and tempo discrimination. We compare performances by 4-, 6-, 8-, and 10-year-old children and adults, with or without musical training. Results indicate three changes with increased age and musical training: (1) a slowing of the mean spontaneous tapping rate (a reflection of the referent period) and mean synchronization rate (a reflection of the referent level), (2) enhanced ability to synchronize tapping and discriminate tempo (improved attunement), and (3) an enlarged range of tapping rates towards slower rates and higher hierarchical levels (improved focal attending). A final section considers results in light of the theory proposed here. It is suggested that growth trends can be expressed in terms of listeners' engagement of slower attending oscillators with age and experience, accompanied by the passage from the initial use of a single oscillator towards the coupling of multiple oscillators.

  18. Flight Crew Health Maintenance

    Science.gov (United States)

    Gullett, C. C.

    1970-01-01

    The health maintenance program for commercial flight crew personnel includes diet, weight control, and exercise to prevent heart disease development and disability grounding. The very high correlation between hypertension and overweight in cardiovascular diseases significantly influences the prognosis for a coronary prone individual and results in a high rejection rate of active military pilots applying for civilian jobs. In addition to physical fitness the major items stressed in pilot selection are: emotional maturity, glucose tolerance, and family health history.

  19. Flight Software Math Library

    Science.gov (United States)

    McComas, David

    2013-01-01

    The flight software (FSW) math library is a collection of reusable math components that provides typical math utilities required by spacecraft flight software. These utilities are intended to increase flight software quality reusability and maintainability by providing a set of consistent, well-documented, and tested math utilities. This library only has dependencies on ANSI C, so it is easily ported. Prior to this library, each mission typically created its own math utilities using ideas/code from previous missions. Part of the reason for this is that math libraries can be written with different strategies in areas like error handling, parameters orders, naming conventions, etc. Changing the utilities for each mission introduces risks and costs. The obvious risks and costs are that the utilities must be coded and revalidated. The hidden risks and costs arise in miscommunication between engineers. These utilities must be understood by both the flight software engineers and other subsystem engineers (primarily guidance navigation and control). The FSW math library is part of a larger goal to produce a library of reusable Guidance Navigation and Control (GN&C) FSW components. A GN&C FSW library cannot be created unless a standardized math basis is created. This library solves the standardization problem by defining a common feature set and establishing policies for the library s design. This allows the libraries to be maintained with the same strategy used in its initial development, which supports a library of reusable GN&C FSW components. The FSW math library is written for an embedded software environment in C. This places restrictions on the language features that can be used by the library. Another advantage of the FSW math library is that it can be used in the FSW as well as other environments like the GN&C analyst s simulators. This helps communication between the teams because they can use the same utilities with the same feature set and syntax.

  20. Communication between residents and attending doctors on call after hours.

    Science.gov (United States)

    Novoselsky Persky, Michal A; Yinnon, Amos M; Freier-Dror, Yossi; Henshke-Bar-Meir, Ruth

    2013-12-01

    Off-hours medical care in hospitals is provided by residents, while attendings on call are available for assistance. This study evaluated the gap between residents' expectations and professional guidelines' requirements of attendings on call and what actually occurs during night shifts, while comparing surgical and medical specialties. Two questionnaires based on professional guidelines were filled by residents. The first queried about residents' expectations of attendings on call, and the second asked about communication with the attendings during actual night shifts. While 91 (100%) of residents expected the attending on call to be available by phone during the shift, only 44 (48%) expected the attending to initiate contact, and only 17 (19%) expected the attending to visit the ward or emergency department (ED) without being requested to do so. In 127 shifts (84%), some form of communication occurred. Residents called their attendings during 105 shifts (70%). However, attendings initiated contact with residents at the beginning or during the shift in only 67 (44%) and 62 (41%) shifts, respectively, and initiated a visit to the ward/ED during the shift in only 41 cases (27%). Surgical attendings initiated contact in these three ways significantly more frequently than medical attendings [21 (28%) versus 46 (61%), 20 (26%) versus 42 (56%) and 4 (5%) versus 37 (50%), respectively; P communication during night shifts between residents and attendings occurs in most shifts, attendings initiate far less contact with residents than is required by the guidelines. © 2013 John Wiley & Sons Ltd.

  1. Radioastron flight operations

    Science.gov (United States)

    Altunin, V. I.; Sukhanov, K. G.; Altunin, K. R.

    1993-01-01

    Radioastron is a space-based very-long-baseline interferometry (VLBI) mission to be operational in the mid-90's. The spacecraft and space radio telescope (SRT) will be designed, manufactured, and launched by the Russians. The United States is constructing a DSN subnet to be used in conjunction with a Russian subnet for Radioastron SRT science data acquisition, phase link, and spacecraft and science payload health monitoring. Command and control will be performed from a Russian tracking facility. In addition to the flight element, the network of ground radio telescopes which will be performing co-observations with the space telescope are essential to the mission. Observatories in 39 locations around the world are expected to participate in the mission. Some aspects of the mission that have helped shaped the flight operations concept are: separate radio channels will be provided for spacecraft operations and for phase link and science data acquisition; 80-90 percent of the spacecraft operational time will be spent in an autonomous mode; and, mission scheduling must take into account not only spacecraft and science payload constraints, but tracking station and ground observatory availability as well. This paper will describe the flight operations system design for translating the Radioastron science program into spacecraft executed events. Planning for in-orbit checkout and contingency response will also be discussed.

  2. The flying classroom - a cost effective integrated approach to learning and teaching flight dynamics

    Science.gov (United States)

    Bromfield, Michael A.; Belberov, Aleksandar

    2017-11-01

    In the UK, the Royal Aeronautical Society recommends the inclusion of practical flight exercises for accredited undergraduate aerospace engineering programmes to enhance learning and student experience. The majority of academic institutions teaching aerospace in the UK separate the theory and practice of flight dynamics with students attending a series of lectures supplemented by an intensive one-day flight exercise. Performance and/or handling qualities flight tests are performed in a dedicated aircraft fitted with specialist equipment for the recording and presentation of flight data. This paper describes an innovative approach to better integrate theory and practice and the use of portable Commercial-off-The-Shelf (COTS) technologies to enable a range of standard, unmodified aircraft to be used. The integration of theory and practice has enriched learning and teaching, improved coursework grades and the student experience. The use of COTS and unmodified aircraft has reduced costs and enabled increased student participation.

  3. 38 CFR 21.374 - Authorization for travel of attendants.

    Science.gov (United States)

    2010-07-01

    ... severity of the veteran's disability. Attendants may only be used to enable a veteran to attend... or marriage is the veteran's (i) Spouse, (ii) Parent, (iii) Child, (iv) Brother, (v) Sister, (vi...

  4. Issue 7: Museum Attendance, Population Shifts, and Changing Tastes

    OpenAIRE

    Haselhoff, Kim; Ong, Paul M.

    2005-01-01

    SCS Fact Sheet no. 7 looks at the extent to which Southern California residents attend art and cultural museums. The findings are consistent with other studies, which have found differences in museum attendance based on ethnic and socioeconomic characteristics. We also found similarities in the general rate of museum attendance in the region over the past twenty years, as well as some changes in attendance rates among groups over the past two decades.

  5. Students Attendance Management System Based On RFID And Fingerprint Reader

    OpenAIRE

    Moth Moth Myint Thein; Chaw Myat Nweand Hla Myo Tun

    2015-01-01

    Abstract Today students class attendance is become more important part for any organizationsinstitutions. The conventional method of taking attendance by calling names or signing on paper is very time consuming and insecure hence inefficient. This paper presents the manual students attendance management into computerized system for convenience or data reliability. So the system is developed by the integration of ubiquitous computing systems into classroom for managing the students attendance ...

  6. The account system for students school‘s attendance

    OpenAIRE

    Birgėlienė, Raminta

    2007-01-01

    SUMMARY The account system for students school‘s attendance The purpose of the created students school‘s attendance account system is to assist teachers in registering, observing and making reports on students school‘s attendance. This work presents the of secondary school students���result attendance account transferred to the informatics system. The system includes the analysis, separable processes, adjustable structured analysis and projections‘methods, which allow dealing with a real prob...

  7. Multitudes attend the Night of Science

    CERN Multimedia

    2006-01-01

    The Night of Science, which took place in the Parc de la Perle du Lac in Geneva last weekend, was a great success, with 30 000 visitors attending according to the organisers. Many curious people flocked to the stands and animations until late on Saturday night and all afternoon on Sunday. The CERN stand (photo) received a great amount of interest from participants. Both kids and adults discovered the activities of the Laboratory and the data-processing revolution initiated by CERN, from the Web to the Computing Grid. Hats off to the CERN collaborators in the Communication Group and IT Department who made this event a success.

  8. Positively essential: traditional birth attendants in Malawi.

    Science.gov (United States)

    Stronge, Shirley

    2011-06-01

    One of the biggest challenges for healthcare professionals working in developing countries is the lack of trained personnel to carry out much needed health care provision. Shirley Stronge worked as a nurse/midwife tutor in a rural area in the north of Malawi. Millennium Development Goals four and five have focused our attention on the care required by mothers and newborns. Shirley has chosen to reflect on the role of Traditional Birth Attendants in the north of Malawi and their positive impact on maternity services in this area.

  9. Church attendance and self-esteem among adolescents

    OpenAIRE

    Robbins, Mandy; Francis, Leslie J.; Williams, Emyr

    2007-01-01

    A total of 279 young people (123 males and 156 females) aged between 12 and 16 years of age attending one school in Wales completed the Coopersmith Self-Esteem Inventory alongside a measure of frequency of church attendance. The data indicate a small positive correlation (r = .18) between self-esteem and church attendance.

  10. 32 CFR 724.213 - Attendance of witnesses.

    Science.gov (United States)

    2010-07-01

    ... BOARD Authority/Policy for Departmental Discharge Review § 724.213 Attendance of witnesses. Arrangement for attendance of witnesses testifying in behalf of the applicant at discharge review hearings is the... 32 National Defense 5 2010-07-01 2010-07-01 false Attendance of witnesses. 724.213 Section 724.213...

  11. 46 CFR 201.125 - Attendance and mileage fees.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 8 2010-10-01 2010-10-01 false Attendance and mileage fees. 201.125 Section 201.125 Shipping MARITIME ADMINISTRATION, DEPARTMENT OF TRANSPORTATION POLICY, PRACTICE AND PROCEDURE RULES OF PRACTICE AND PROCEDURE Subpoenas (Rule 12) § 201.125 Attendance and mileage fees. Persons attending...

  12. Social environment and frequent attendance in Danish general practice

    DEFF Research Database (Denmark)

    Vedsted, Peter; Olesen, Frede

    2005-01-01

    of 1423 (73.7%) frequent attenders and 1103 (74.9%) infrequent attenders responded. Male frequent attendance was associated, with statistical significance, with living alone and being without work or on a disability pension. Among women, lack of professional education or being without work tended...

  13. The association between airline flight and sinonasal symptoms.

    Science.gov (United States)

    Shargorodsky, Josef; Zheng, Laura; Stillman, Frances; Soong, Andrea; Navas-Acien, Ana; Reh, Douglas

    2016-04-01

    Airplane cabin supply air has been shown to contain multiple possible respiratory irritants. In addition, changes in barometric pressure in flight may contribute to specific respiratory conditions. Therefore, there may be an association between commercial airline flight and sinus disease. Participants of the Secondhand-Smoke, Air Quality and Respiratory Health Among Flight Attendants Study were administered an online questionnaire pertaining to their flight experience and respiratory health. Working years, working days per month, and number of trips per month were quantified, as well as smoking exposure and self-reported physician diagnoses of sinusitis, asthma, and rhinitis. The sinonasal outcomes were quantified using a Respiratory Questionnaire Survey (RQS) score. Multivariable analyses were performed to evaluate the associations between flight time and sinus disease. A total of 579 participants met the inclusion criteria for this study, with cohort prevalence of sinusitis, asthma, and rhinitis of 25.3%, 14.4%, and 20.5%, respectively. Tertiles 2 and 3 of working days per month were associated with higher RQS scores compared to tertile 1 (p for trend <0.01). Individual symptoms significantly associated with increasing number of working days per month included "need to blow nose," "sneezing," and "thick nasal discharge," and the number of international trips per month was significantly associated with "coughing" and "facial pain and pressure," among other symptoms. This is the largest study to analyze the relations between airline flight time and sinonasal disease. The results suggest a possible association between sinusitis diagnosis, symptom scores, and specific sinonasal symptoms, and airline flight time. © 2016 ARS-AAOA, LLC.

  14. Minor injury attendance times to the ED.

    LENUS (Irish Health Repository)

    Conlon, Ciaran

    2009-07-01

    The Health Service Executive (HSE) highlights the need for effective patient throughput and management, whilst providing appropriate staffing and therapeutic interventions. It acknowledges that patient need is integral to the development of a nurse led service and advocates planning staffing levels to reflect arrival times of patients. An observational study of all patients who presented to the emergency department in July 2005 and February 2006 was undertaken (n=7768). The study identified 1577 patients suitable for treatment by the Advanced Nurse Practitioner (ANP) in these two months, which represents 20% of all patient attendances to the ED in this time period. A data collection tool was devised collectively by the ANPs to identify appropriate patients. The findings of the study revealed that 73% of patients suitable for the ANP service presented between the hours of 0800 and 2000, of which 54% attended between 0800 and 1600 h. Sunday emerged as the busiest day in July 2005 whereas Monday was found to be the busiest day in February 2006. Friday was found to be consistently busy for both months.

  15. [Dynamic Attending Binds Time and Rhythm Perception].

    Science.gov (United States)

    Kuroda, Tsuyoshi; Ono, Fuminori; Kadota, Hiroshi

    2017-11-01

    Relations between time and rhythm perception are discussed in this review of psychophysical research relevant to the multiple-look effect and dynamic-attending theory. Discrimination of two neighboring intervals that are marked by three successive sounds is improved when the presentation of the first (standard, S) interval is repeated before that of the second (comparison, C), as SSSSC. This improvement in sensitivity, called the multiple-look effect, occurs because listeners (1) perceive regular rhythm during the repetition of the standard interval, (2) predict the timing of subsequent sounds, and (3) detect sounds that are deviated from the predicted timing. The dynamic-attending theory attributes such predictions to the entrainment of attentional rhythms. An endogenous attentional rhythm is synchronized with the periodic succession of sounds marking the repeated standard. The standard and the comparison are discriminated on the basis of whether the ending marker of the comparison appears at the peak of the entrained attentional rhythm. This theory is compatible with the findings of recent neurophysiological studies that relate temporal prediction to neural oscillations.

  16. Barriers to dental attendance in older patients

    LENUS (Irish Health Repository)

    Shanahan, D

    2017-04-01

    Health professionals in Ireland are increasingly concerned about the quality of oral health in older patients. The aim of this study is to identify the obstacles that face this age-group when accessing dental care, so that we are in a better position to address them. A questionnaire was completed by 105 patients attending a geriatric outpatient clinic. Over 50 percent of respondents had not attended a dentist in over 36 months, for the reasons that \\'I have no problem or need for treatment’ (62%) and ‘I have no teeth, and therefore I have no need to go’ (54%). While it is common to assume that no teeth means no need to see a dentist, research shows that regular dental visits are vital for ensuring the early screening of oral cancer and other mucosal pathologies, and the optimisation of existing rosthesis\\/restorations. The chief recommendation of this paper is thus to provide better education and access to older people on the importance of visiting the dentist.

  17. Flight Test of an Intelligent Flight-Control System

    Science.gov (United States)

    Davidson, Ron; Bosworth, John T.; Jacobson, Steven R.; Thomson, Michael Pl; Jorgensen, Charles C.

    2003-01-01

    The F-15 Advanced Controls Technology for Integrated Vehicles (ACTIVE) airplane (see figure) was the test bed for a flight test of an intelligent flight control system (IFCS). This IFCS utilizes a neural network to determine critical stability and control derivatives for a control law, the real-time gains of which are computed by an algorithm that solves the Riccati equation. These derivatives are also used to identify the parameters of a dynamic model of the airplane. The model is used in a model-following portion of the control law, in order to provide specific vehicle handling characteristics. The flight test of the IFCS marks the initiation of the Intelligent Flight Control System Advanced Concept Program (IFCS ACP), which is a collaboration between NASA and Boeing Phantom Works. The goals of the IFCS ACP are to (1) develop the concept of a flight-control system that uses neural-network technology to identify aircraft characteristics to provide optimal aircraft performance, (2) develop a self-training neural network to update estimates of aircraft properties in flight, and (3) demonstrate the aforementioned concepts on the F-15 ACTIVE airplane in flight. The activities of the initial IFCS ACP were divided into three Phases, each devoted to the attainment of a different objective. The objective of Phase I was to develop a pre-trained neural network to store and recall the wind-tunnel-based stability and control derivatives of the vehicle. The objective of Phase II was to develop a neural network that can learn how to adjust the stability and control derivatives to account for failures or modeling deficiencies. The objective of Phase III was to develop a flight control system that uses the neural network outputs as a basis for controlling the aircraft. The flight test of the IFCS was performed in stages. In the first stage, the Phase I version of the pre-trained neural network was flown in a passive mode. The neural network software was running using flight data

  18. Rocket Flight Path

    Directory of Open Access Journals (Sweden)

    Jamie Waters

    2014-09-01

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

  19. Flight Mechanics Project

    Science.gov (United States)

    Steck, Daniel

    2009-01-01

    This report documents the generation of an outbound Earth to Moon transfer preliminary database consisting of four cases calculated twice a day for a 19 year period. The database was desired as the first step in order for NASA to rapidly generate Earth to Moon trajectories for the Constellation Program using the Mission Assessment Post Processor. The completed database was created running a flight trajectory and optimization program, called Copernicus, in batch mode with the use of newly created Matlab functions. The database is accurate and has high data resolution. The techniques and scripts developed to generate the trajectory information will also be directly used in generating a comprehensive database.

  20. Flight to America

    Directory of Open Access Journals (Sweden)

    Güneli Gün

    2011-01-01

    Full Text Available Güneli Gün’s memoir piece truly combines the excitement of the young traveler with the humor of the mature narrator. Born in Izmir, Turkey, she breaks her engagement to a young but conservative Turkish architect and overcomes her father’s concerns to eventually study at Hollins College, Virginia. Addressing topics such as breaking out of a traditional society, being torn between the home country and the imagined new home, and finding comfort in the arts, “Flight to America” compellingly reflects Güneli Gün’s mastery as a storyteller.

  1. A Comparison of Sexual Minority Youth Who Attend Religiously Affiliated Schools and Their Nonreligious-School-Attending Counterparts

    Science.gov (United States)

    Stewart, Brandon T.; Heck, Nicholas C.; Cochran, Bryan N.

    2015-01-01

    Sexual minority youth are an at-risk group for negative health outcomes. The present study compares descriptive characteristics and outness of sexual minority youth who attend religious schools to sexual minorities who do not attend religious schools, and also investigates if attending religiously affiliated schools is associated with levels of…

  2. Students Attendance Management System Based On RFID And Fingerprint Reader

    Directory of Open Access Journals (Sweden)

    Moth Moth Myint Thein

    2015-07-01

    Full Text Available Abstract Today students class attendance is become more important part for any organizationsinstitutions. The conventional method of taking attendance by calling names or signing on paper is very time consuming and insecure hence inefficient. This paper presents the manual students attendance management into computerized system for convenience or data reliability. So the system is developed by the integration of ubiquitous computing systems into classroom for managing the students attendance using RFID and fingerprint reader. The system is designed to implement an attendance management system based on RFID and fingerprint reader which students need to use their student identification card ID and their finger ID to success the attendance where only authentic student can be recorded the attendance during the class. In this system passive RFID tag and reader pairs are used to register the student ID cards individually and fingerprint reader is used for attendance. This system takes attendance electronically with the help of the RFID and finger print device and the records of the attendance are stored in a database. Students roll call percentages and their details are easily seenvia Graphical User Interface GUI. This system will have the required databases for students attendance teachers subjects and students details. This application is implemented by Microsoft Visual Studio and Microsoft SQL Server as IDE. C language is used to implement this system.

  3. Do young people attending addiction services differ from those attending youth mental health services?

    Science.gov (United States)

    Christie, Grant; Merry, Sally; Robinson, Elizabeth

    2010-07-01

    We aimed to describe and compare the self-reported substance use, psychopathology and psychosocial morbidity in adolescents attending two adolescent outpatient services, a triage-based mental health service and an engagement-focused addiction service in Auckland, New Zealand. A naturalistic cross-section of 131 (addiction service = 67, mental health service = 64) 14-18-year-old boys and girls attending each service completed a standardised screening and assessment instrument, the Drug Use Screening Inventory-Revised. The Drug Use Screening Inventory-Revised measures self-reported problems across 10 domains of functioning, including substance use, behaviour, psychiatric symptoms and school and family functioning. Descriptive statistics were used to provide an overview of the self-reported morbidity in each group and t-tests were used to determine differences between the two groups. Adolescents attending the addiction service reported significantly more problems with substance use, school performance and peer relationships than those attending the mental health service. There was no significant difference in reported psychiatric symptoms, behavioural problems, social competency, health problems, family problems, difficulties in work functioning or leisure time between the two groups. Young people presenting to engagement-focused substance use services report similar difficulties to those at mental health services across most areas of psychosocial functioning. Addiction services may require equivalent staffing expertise and workforce development to that in mental health to effectively meet young people's needs.

  4. Getting started with Twitter Flight

    CERN Document Server

    Hamshere, Tom

    2013-01-01

    Getting Started with Twitter Flight is written with the intention to educate the readers, helping them learn how to build modular powerful applications with Flight, Twitter's cutting-edge JavaScript framework.This book is for anyone with a foundation in JavaScript who wants to build web applications. Flight is quick and easy to learn, built on technologies you already understand such as the DOM, events, and jQuery.

  5. Self-Sampling for Human Papillomavirus Testing among Non-Attenders Increases Attendance to the Norwegian Cervical Cancer Screening Programme

    DEFF Research Database (Denmark)

    Enerly, Espen; Bonde, Jesper; Schee, Kristina

    2016-01-01

    Increasing attendance to screening offers the best potential for improving the effectiveness of well-established cervical cancer screening programs. Self-sampling at home for human papillomavirus (HPV) testing as an alternative to a clinical sampling can be a useful policy to increase attendance....... To determine whether self-sampling improves screening attendance for women who do not regularly attend the Norwegian Cervical Cancer Screening Programme (NCCSP), 800 women aged 25-69 years in the Oslo area who were due to receive a 2nd reminder to attend regular screening were randomly selected and invited...... alternative for increasing cervical cancer screening coverage in Norway....

  6. Pre-School Attendance and Child Development

    DEFF Research Database (Denmark)

    Bauchmüller, Robert; Gørtz, Mette; Rasmussen, Astrid Würtz

    Earlier research suggests that children's development is shaped in their early years of life. This paper examines whether differences in day-care experiences during pre-school age are important for children's cognitive and language development at the age of 15. The analysis is based on class...... performance at the end of elementary schooling. We assess the effects of attended types and qualities of day-care institutions on various child outcomes as measured by school grades in mathematics, science, English and Danish for the whole Danish population as well as outcomes from the 2006 PISA Denmark...... survey and a 2007 PISA Copenhagen survey. We use administrative registries to generate indicators such as child-staff ratios, child-pedagogues ratios, and the share of male staff and of staff with non-Danish origins. Furthermore, we use information on the average levels of educational attainments...

  7. Day-care attendance and child development

    DEFF Research Database (Denmark)

    Bauchmüller, Robert; Gørtz, Mette; Rasmussen, Astrid Würtz

    Earlier research suggests that children’s development is shaped in their early years of life. This paper examines whether differences in day-care experiences during pre-school age are important for children’s cognitive and language development at the age of 15. The analysis is based on class...... performance at the end of elementary schooling. We assess the effects of attended types and qualities of day-care institutions on various child outcomes as measured by school grades in mathematics, science, English and Danish for the whole Danish population as well as outcomes from the 2006 PISA Denmark...... survey and a 2007 PISA Copenhagen survey. We use administrative registries to generate indicators such as child-staff ratios, child-pedagogues ratios, and the share of male staff and of staff with non-Danish origins. Furthermore, we use information on the average levels of educational attainments...

  8. Lipoid Pneumonia in a Gas Station Attendant

    Directory of Open Access Journals (Sweden)

    Gladis Isabel Yampara Guarachi

    2014-01-01

    Full Text Available The exogenous lipoid pneumonia, uncommon in adults, is the result of the inhalation and/or aspiration of lipid material into the tracheobronchial tree. This is often confused with bacterial pneumonia and pulmonary tuberculosis due to a nonspecific clinical and radiologic picture. It presents acutely or chronically and may result in pulmonary fibrosis. We describe here a case of lipoid pneumonia in a gas station attendant who siphoned gasoline to fill motorcycles; he was hospitalized due to presenting with a respiratory infection that was hard to resolve. The patient underwent bronchoscopy with bronchoalveolar lavage, which, on cytochemical (oil red O evaluation, was slightly positive for lipid material in the foamy cytoplasm of alveolar macrophages. Due to his occupational history and radiographic abnormalities suggestive of lipoid pneumonia, a lung biopsy was performed to confirm the diagnosis. The patient was serially treated with segmental lung lavage and showed clinical, functional, and radiological improvement.

  9. Day-care attendance and child development:

    DEFF Research Database (Denmark)

    Bauchmüller, Robert; Gørtz, Mette; Rasmussen, Astrid Würtz

    performance at the end of elementary schooling. We assess the effects of attended types and qualities of day-care institutions on various child outcomes as measured by school grades in mathematics, science, English and Danish for the whole Danish population as well as outcomes from the 2006 PISA Denmark...... survey and a 2007 PISA Copenhagen survey. We use administrative registries to generate indicators such as child-staff ratios, child-pedagogues ratios, and the share of male staff and of staff with non-Danish origins. Furthermore, we use information on the average levels of educational attainments......, of total work experiences, ages and hourly wages of staff members. Those indicators show the expected correlations with children’s development outcomes, better day-care quality being linked to better child outcomes ten years later. We use rich administrative information about the children’s background...

  10. Stirling to Flight Initiative

    Science.gov (United States)

    Hibbard, Kenneth E.; Mason, Lee S.; Ndu, Obi; Smith, Clayton; Withrow, James P.

    2016-01-01

    Flight (S2F) initiative with the objective of developing a 100-500 We Stirling generator system. Additionally, a different approach is being devised for this initiative to avoid pitfalls of the past, and apply lessons learned from the recent ASRG experience. Two key aspects of this initiative are a Stirling System Technology Maturation Effort, and a Surrogate Mission Team (SMT) intended to provide clear mission pull and requirements context. The S2F project seeks to lead directly into a DOE flight system development of a new SRG. This paper will detail the proposed S2F initiative, and provide specifics on the key efforts designed to pave a forward path for bringing Stirling technology to flight.

  11. Cibola flight experiment satellite

    Science.gov (United States)

    Davies, P.; Liddle, Doug; Paffett, John; Sweeting, Martin; Curiel, A.; Sun, Wei; Eves, Stuart

    2004-11-01

    In order to achieve an "economy of scale" with respect to payload capacity the major trend in telecommunications satellites is for larger and larger platforms. With these large platforms the level of integration between platform and payload is increasing leading to longer delivery schedules. The typical lifecycle for procurement of these large telecommunications satellites is now 3-6 years depending on the level of non-recurring engineering needed. Surrey Satellite Technology Ltd (SSTL) has designed a low-cost platform aimed at telecommunications and navigation applications. SSTL's Geostationary Minisatellite Platform (GMP) is a new entrant addressing the lower end of the market with payloads up to 250kg requiring less than 1.5 kW power. The British National Space Centre through the MOSAIC Small Satellite Initiative supported the development of GMP. The main design goals for GMP are low-cost for the complete mission including launch and operations and a platform allowing flexible payload accommodation. GMP is specifically designed to allow rapid development and deployment with schedules typically between 1 and 2 years from contract signature to flight readiness. GMP achieves these aims by a modular design where the level of integration between the platform and payload is low. The modular design decomposes the satellite into three major components - the propulsion bay, the avionics bay and the payload module. Both the propulsion and avionics bays are reusable, largely unchanged, and independent of the payload configuration. Such a design means that SSTL or a 3rd party manufacturer can manufacture the payload in parallel to the platform with integration taking place quite late in the schedule. In July 2003 SSTL signed a contract for ESA's first Galileo navigation satellite known as GSTBV2/A. The satellite is based on GMP and ESA plan to launch it into a MEO orbit late in 2005. The second flight of GMP is likely to be in 2006 carrying a geostationary payload

  12. The Cibola flight experiment

    Energy Technology Data Exchange (ETDEWEB)

    Caffrey, Michael Paul [Los Alamos National Laboratory; Nelson, Anthony [Los Alamos National Laboratory; Salazar, Anthony [Los Alamos National Laboratory; Roussel - Dupre, Diane [Los Alamos National Laboratory; Katko, Kim [Los Alamos National Laboratory; Palmer, Joseph [ISE-3; Robinson, Scott [Los Alamos National Laboratory; Wirthlin, Michael [BRIGHAM YOUNG UNIV; Howes, William [BRIGHAM YOUNG UNIV; Richins, Daniel [BRIGHAM YOUNG UNIV

    2009-01-01

    The Cibola Flight Experiment (CFE) is an experimental small satellite carrying a reconfigurable processing instrument developed at the Los Alamos National Laboratory that demonstrates the feasibility of using FPGA-based high-performance computing for sensor processing in the space environment. The CFE satellite was launched on March 8, 2007 in low-earth orbit and has operated extremely well since its deployment. The nine Xilinx Virtex FPGAs used in the payload have been used for several high-throughput sensor processing applications and for single-event upset (SEU) monitoring and mitigation. This paper will describe the CFE system and summarize its operational results. In addition, this paper will describe the results from several SEU detection circuits that were performed on the spacecraft.

  13. Flight plan optimization

    Science.gov (United States)

    Dharmaseelan, Anoop; Adistambha, Keyne D.

    2015-05-01

    Fuel cost accounts for 40 percent of the operating cost of an airline. Fuel cost can be minimized by planning a flight on optimized routes. The routes can be optimized by searching best connections based on the cost function defined by the airline. The most common algorithm that used to optimize route search is Dijkstra's. Dijkstra's algorithm produces a static result and the time taken for the search is relatively long. This paper experiments a new algorithm to optimize route search which combines the principle of simulated annealing and genetic algorithm. The experimental results of route search, presented are shown to be computationally fast and accurate compared with timings from generic algorithm. The new algorithm is optimal for random routing feature that is highly sought by many regional operators.

  14. JACEE long duration balloon flights

    International Nuclear Information System (INIS)

    Burnett, T.; Iwai, J.; Lord, J.J.; Strausz, S.; Wilkes, R.J.; Dake, S.; Oda, H.; Miyamura, O.; Fuki, M.; Jones, W.V.; Gregory, J.; Hayashi, T.; Takahashi, U.; Tominaga, Y.; Wefel, J.P.; Fountain, W.; Derrickson, J.; Parnell, T.A.; Roberts, E.; Tabuki, T.; Watts, J.W.

    1989-01-01

    JACEE balloon-borne emulsion chamber detectors are used to observe the spectra and interactions of cosmic ray protons and nuclei in the energy range 1-100A TeV. Experience with long duration mid-latitude balloon flights and characteristics of the detector system that make it ideal for planned Antarctic balloon flights are discussed. 5 refs., 2 figs

  15. Capital flight and political risk

    NARCIS (Netherlands)

    Lensink, R; Hermes, N; Murinde, [No Value

    This paper provides the first serious attempt to examine the relationship between political risk and capital flight for a large set of developing countries. The outcomes of the analysis show that in most cases political risk variables do have a statistically robust relationship to capital flight

  16. Passengers waste production during flights.

    Science.gov (United States)

    Tofalli, Niki; Loizia, Pantelitsa; Zorpas, Antonis A

    2017-12-20

    We assume that during flights the amount of waste that is produced is limited. However, daily, approximately 8000 commercial airplanes fly above Europe's airspace while at the same time, more than 17,000 commercial flights exist in the entire world. Using primary data from airlines, which use the Larnaca's International Airport (LIA) in Cyprus, we have tried to understand why wastes are produced during a typical flight such as food waste, paper, and plastics, as well as how passengers affect the production of those wastes. The compositional analysis took place on 27 flights of 4 different airlines which used LIA as final destination. The evaluation indicated that the passenger's habits and ethics, and the policy of each airline produced different kinds of waste during the flights and especially food waste (FW). Furthermore, it was observed that the only waste management strategy that exists in place in the airport is the collection and the transportation of all those wastes from aircrafts and from the airport in the central unit for further treatment. Hence, this research indicated extremely difficulties to implement any specific waste minimization, or prevention practice or other sorting methods during the flights due to the limited time of the most flights (less than 3 h), the limited available space within the aircrafts, and the strictly safety roles that exist during the flights.

  17. Attending to the reasons for attribute non-attendance in choice experiments

    DEFF Research Database (Denmark)

    Alemu, Mohammed Hussen; Mørkbak, Morten Raun; Olsen, Søren Bøye

    2013-01-01

    This paper focuses on behavioural reasons underlying stated attribute non-attendance in choice experiments. In order to identify and incorporate procedures for dealing with heterogeneous attribute processing strategies, we ask respondents follow-up questions regarding their reasons for ignoring...... not affect their utility. Excluding these genuine zero preferences, as the standard approach essentially does, might bias results. Other respondents claim to have ignored attributes to simplify choices. However, we find that these respondents have actually not completely ignored attributes. We argue along...... the rationally adaptive behavioural model that valid preference information may indeed be elicited in these cases, and we illustrate how recoding of non-attendance statements conditional on stated reasons may be a more appropriate solution than the current standard way of taking stated non...

  18. Attendance and achievement in medicine: investigating the impact of attendance policies on academic performance of medical students.

    Science.gov (United States)

    Subramaniam, Bs; Hande, S; Komattil, R

    2013-04-01

    The attendance mandate for the medical course in Melaka Manipal Medical College, Manipal, India was increased from 75% to 90% based on the assumption that the mandatory increase will improve the students' performance. To find out whether there is any correlation between class attendance and academic performance. This was an institution based retrospective analytical study. Students who have completed Phase I (first two and a half years) of the MBBS course were included in the study. Student marks and attendance, from the database were obtained from three random batches, each, from two clusters A and B respectively. Those who had a mandatory attendance requirement of 75% belonged to A (n = 243), and those who had a mandatory attendance percentage of 90% belonged to B (n = 360). Statistical analyses performed included, Pearson 2 tailed correlation to correlate class attendance with student performance; Cluster analysis to classify group average in a similarity matrix; t-test to determine significance of difference in percentage of students who attained 100% when the college changed mandatory attendance from 75% to 90%; Mann-Whitney test to find out if there was a better performance in university exam when attendance policy changed. There was a significant correlation between attendance and the students who passed in the University exam. The number of students in the pass category was maximum (>90%) compared to students in distinction and failed categories. Percentage of students with 100% attendance rose from 4% (n = 10) to 11% (n = 40) when the mandatory attendance was increased from 75% to 90%. Attendance policy correlated with better academic performance. Reducing absenteeism, probably contributed to the improved academic performance of the students. But the link between attendance and best and worst performances could not be predicted because of small numbers in every batch.

  19. An Efficient Automatic Attendance System Using Fingerprint Reconstruction Technique

    OpenAIRE

    Ramakrishnan, Josphineleela; Ramakrishnan, M.

    2012-01-01

    Biometric time and attendance system is one of the most successful applications of biometric technology. One of the main advantage of a biometric time and attendance system is it avoids "buddy-punching". Buddy punching was a major loophole which will be exploiting in the traditional time attendance systems. Fingerprint recognition is an established field today, but still identifying individual from a set of enrolled fingerprints is a time taking process. Most fingerprint-based biometric syste...

  20. Mobile Phone-Based Mood Ratings Prospectively Predict Psychotherapy Attendance.

    Science.gov (United States)

    Bruehlman-Senecal, Emma; Aguilera, Adrian; Schueller, Stephen M

    2017-09-01

    Psychotherapy nonattendance is a costly and pervasive problem. While prior research has identified stable patient-level predictors of attendance, far less is known about dynamic (i.e., time-varying) factors. Identifying dynamic predictors can clarify how clinical states relate to psychotherapy attendance and inform effective "just-in-time" interventions to promote attendance. The present study examines whether daily mood, as measured by responses to automated mobile phone-based text messages, prospectively predicts attendance in group cognitive-behavioral therapy (CBT) for depression. Fifty-six Spanish-speaking Latino patients with elevated depressive symptoms (46 women, mean age=50.92years, SD=10.90years), enrolled in a manualized program of group CBT, received daily automated mood-monitoring text messages. Patients' daily mood ratings, message response rate, and delay in responding were recorded. Patients' self-reported mood the day prior to a scheduled psychotherapy session significantly predicted attendance, even after controlling for patients' prior attendance history and age (OR=1.33, 95% CI [1.04, 1.70], p=.02). Positive mood corresponded to a greater likelihood of attendance. Our results demonstrate the clinical utility of automated mood-monitoring text messages in predicting attendance. These results underscore the value of text messaging, and other mobile technologies, as adjuncts to psychotherapy. Future work should explore the use of such monitoring to guide interventions to increase attendance, and ultimately the efficacy of psychotherapy. Copyright © 2017. Published by Elsevier Ltd.

  1. IVGEN Post Flight Analysis

    Science.gov (United States)

    Mcquillen, John; Brown, Dan; Hussey, Sam; Zoldak, John

    2014-01-01

    The Intravenous Fluid Generation (IVGEN) Experiment was a technology demonstration experiment that purified ISS potable water, mixed it with salt, and transferred it through a sterilizing filter. On-orbit performance was verified as appropriate and two 1.5 l bags of normal saline solution were returned to earth for post-flight testing by a FDA certified laboratory for compliance with United States Pharmacopiea (USP) standards. Salt concentration deviated from required values and an analysis identified probable causes. Current efforts are focused on Total Organic Content (TOC) testing, and shelf life.The Intravenous Fluid Generation (IVGEN) Experiment demonstrated the purification of ISS potable water, the mixing of the purified water with sodium chloride, and sterilization of the solution via membrane filtration. On-orbit performance was monitored where feasible and two 1.5-liter bags of normal saline solution were returned to earth for post-flight testing by a FDA-registered laboratory for compliance with United States Pharmacopeia (USP)standards [1]. Current efforts have been focused on challenge testing with identified [2] impurities (total organic-carbon), and shelf life testing. The challenge testing flowed known concentrations of contaminants through the IVGEN deionizing cartridge and membrane filters to test their effectiveness. One finding was that the filters and DI-resin themselves contribute to the contaminant load during initial startup, suggesting that the first 100 ml of fluid be discarded. Shelf life testing is ongoing and involves periodic testing of stored DI cartridges and membrane filters that are capped and sealed in hermetic packages. The testing is conducted at six month intervals measuring conductivity and endotoxins in the effluent. Currently, the packaging technique has been successfully demonstrated for one year of storage testing. The USP standards specifies that the TOC be conducted at point of generation as opposed to point of

  2. Perceptual organization at attended and unattended locations

    Institute of Scientific and Technical Information of China (English)

    HAN Shihui; Glyn W. Humphreys

    2005-01-01

    This study examined the effects of attention on forming perceptual units by proximity grouping and by uniform connectedness (UC). In Experiment 1 a row of three global letters defined by either proximity or UC was presented at the center of the visual field. Participants were asked to identify the letter in the middle of stimulus arrays while ignoring the flankers. The stimulus onset asynchrony (SOA) between stimulus arrays and masks varied between 180 and 500 ms. We found that responses to targets defined by proximity grouping were slower than to those defined by UC at median SOAs but there were no differences at short or long SOAs. Incongruent flankers slowed responses to targets and this flanker compatibility effect was larger for UC than for proximity-defined flankers. Experiment 2 examined the effects of spatial precueing on discrimination responses to proximity- and UC-defined targets. The advantage for targets defined by UC over targets defined by proximity grouping was greater at uncued relative to cued locations. The results suggest that the advantage for UC over proximity grouping in forming perceptual units is contingent on the stimuli not being fully attended, and that paying attention to the stimuli differentially benefits proximity grouping.

  3. Obstetrical referrals by traditional birth attendants.

    Science.gov (United States)

    Mustafa, Rozina; Hashmi, Haleema; Mustafa, Rubina

    2012-01-01

    In Pakistan 90% of births are conducted by TBA's. In most cases, TBA's are unable to diagnose the complications and are often unable to take decisions on timely referral. The objective of this study was to determine the prevalence, nature and outcome of life threatening obstetrical conditions in referrals by Traditional Birth Attendants (TBAs). This Observational, Descriptive study was conducted from January to December 2007, in the obstetrical unit of Fatima Hospital, Baqai Medical University, a tertiary care community based hospital. The study included patients referred by TBA's who developed life threatening obstetric conditions (LTOCs). Total 64 patients were referred by TBA's. The prevalence was 7.8%. Out of them, 53 (82.8%) patients admitted with life threatening obstetric conditions. The near-miss morbidities and mortalities were 45 (84.9%) and 8 (15%) respectively. Maternal mortality to Near-miss morbidity ratio was 1:6. Obstructed labour caused near-miss morbidity in 32 (60.3%) patients with no mortality. Postpartum haemorrhage as life threatening condition developed in 16 (30.1%) patients with 10 (18.8%) near-miss morbidities and 6 (11.3%) mortalities. Puerperal sepsis accounted for 1 (1.88%) near-miss morbidity and 2 (3.76%) mortalities. The mortality index for puerperal sepsis is (66.6%) almost double of postpartum haemorrhage (37.5%). Mortality to near miss morbidity ratio is high. Misidentification and late referrals of complicated cases by TBA's were responsible for near-miss morbidities and mortalities.

  4. Radiations and space flight

    International Nuclear Information System (INIS)

    Maalouf, M.; Vogin, G.; Foray, N.; Maalouf; Vogin, G.

    2011-01-01

    A space flight is submitted to 3 main sources of radiation: -) cosmic radiation (4 protons/cm 2 /s and 10000 times less for the heaviest particles), -) solar radiation (10 8 protons/cm 2 /s in the solar wind), -) the Van Allen belt around the earth: the magnetosphere traps particles and at an altitude of 500 km the proton flux can reach 100 protons/cm 2 /s. If we take into account all the spatial missions performed since 1960, we get an average dose of 400 μGray per day with an average dose rate of 0.28 μGray/mn. A significant risk of radiation-induced cancer is expected for missions whose duration is over 250 days.The cataract appears to be the most likely non-cancerous health hazard due to the exposition to comic radiation. Its risk appears to have been under-estimated, particularly for doses over 8 mGray. Some studies on astronauts have shown for some a very strong predisposition for radio-induced cancers: during the reparation phase of DNA breaking due to irradiation, multiple new damages are added by the cells themselves that behave abnormally. (A.C.)

  5. IceBridge Mission Flight Reports

    Data.gov (United States)

    National Aeronautics and Space Administration — The IceBridge Mission Flight Reports data set contains flight reports from NASA Operation IceBridge Greenland, Arctic, Antarctic, and Alaska missions. Flight reports...

  6. Predicting intention to attend and actual attendance at a universal parent-training programme: a comparison of social cognition models.

    Science.gov (United States)

    Thornton, Sarah; Calam, Rachel

    2011-07-01

    The predictive validity of the Health Belief Model (HBM) and the Theory of Planned Behaviour (TPB) were examined in relation to 'intention to attend' and 'actual attendance' at a universal parent-training intervention for parents of children with behavioural difficulties. A validation and reliability study was conducted to develop two questionnaires (N = 108 parents of children aged 4-7).These questionnaires were then used to investigate the predictive validity of the two models in relation to 'intention to attend' and 'actual attendance' at a parent-training intervention ( N = 53 parents of children aged 4-7). Both models significantly predicted 'intention to attend a parent-training group'; however, the TPB accounted for more variance in the outcome variable compared to the HBM. Preliminary investigations highlighted that attendees were more likely to intend to attend the groups, have positive attitudes towards the groups, perceive important others as having positive attitudes towards the groups, and report elevated child problem behaviour scores. These findings provide useful information regarding the belief-based factors that affect attendance at universal parent-training groups. Possible interventions aimed at increasing 'intention to attend' and 'actual attendance' at parent-training groups are discussed.

  7. Nutritional Biochemistry of Space Flight

    Science.gov (United States)

    Smith, Scott M.

    2000-01-01

    Adequate nutrition is critical for maintenance of crew health during and after extended-duration space flight. The impact of weightlessness on human physiology is profound, with effects on many systems related to nutrition, including bone, muscle, hematology, fluid and electrolyte regulation. Additionally, we have much to learn regarding the impact of weightlessness on absorption, mtabolism , and excretion of nutrients, and this will ultimately determine the nutrient requirements for extended-duration space flight. Existing nutritional requirements for extended-duration space flight have been formulated based on limited flight research, and extrapolation from ground-based research. NASA's Nutritional Biochemistry Laboratory is charged with defining the nutritional requirements for space flight. This is accomplished through both operational and research projects. A nutritional status assessment program is included operationally for all International Space Station astronauts. This medical requirement includes biochemical and dietary assessments, and is completed before, during, and after the missions. This program will provide information about crew health and nutritional status, and will also provide assessments of countermeasure efficacy. Ongoing research projects include studies of calcium and bone metabolism, and iron absorption and metabolism. The calcium studies include measurements of endocrine regulation of calcium homeostasis, biochemical marker of bone metabolism, and tracer kinetic studies of calcium movement in the body. These calcium kinetic studies allow for estimation of intestinal absorption, urinary excretion, and perhaps most importantly - deposition and resorption of calcium from bone. The Calcium Kinetics experiment is currently being prepared for flight on the Space Shuttle in 2001, and potentially for subsequent Shuttle and International Space Station missions. The iron study is intended to assess whether iron absorption is down-regulated dUl1ng

  8. Morphing Flight Control Surface for Advanced Flight Performance, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — In this SBIR project, a new Morphing Flight Control Surface (MFCS) will be developed. The distinction of the research effort is that the SenAnTech team will employ...

  9. Alertness Management In Flight Operations: A NASA Education and Training Module

    Science.gov (United States)

    Rosekind, Mark R.; Lebacqz, Victor J.; Gander, Philippa H.; Co, Elizabeth L.; Weldon, Keri J.; Smith, Roy M.; Miller, Donna L.; Gregory, Kevin B.; Statler, Irving C. (Technical Monitor)

    1994-01-01

    Since 1980, the NASA Ames Fatigue Countermeasures Program has been conducting research on sleep, circadian rhythms, and fatigue in a variety of flight operations 1. An original goal of the program was to return the scientific and operational knowledge to the aviation industry. To meet this goal, the NASA Ames Fatigue Countermeasures Program has created an Education and Training Module entitled, "Strategies for Alertness Management in Flight Operations." The Module was designed to meet three objectives: 1) explain the current state of knowledge about the physiological mechanisms underlying fatigue, 2) demonstrate how this knowledge can be applied to improve flight crew sleep, performance, and alertness, and 3) offer countermeasure recommendations. The Module is composed of two components: 1) a 60-minute live presentation provided by a knowledgeable individual and 2) a NASA/FAA Technical Memorandum (TM) that contains the presentation materials and appendices with complementary information. The TM is provided to all individuals attending the live presentation. The Module content is divided into three parts: 1) basic information on sleep, sleepiness, circadian rhythms, fatigue, and how flight operations affect these physiological factors, 2) common misconceptions about sleep, sleepiness, and fatigue, and 3) alertness management strategies. The Module is intended for pilots, management personnel, schedulers, flight attendants, and the many other individuals involved in the aviation system.

  10. Enclosure enhancement of flight performance

    KAUST Repository

    Ghommem, Mehdi; Garcia, Daniel; Calo, Victor M.

    2014-01-01

    We use a potential flow solver to investigate the aerodynamic aspects of flapping flights in enclosed spaces. The enclosure effects are simulated by the method of images. Our study complements previous aerodynamic analyses which considered only the near-ground flight. The present results show that flying in the proximity of an enclosure affects the aerodynamic performance of flapping wings in terms of lift and thrust generation and power consumption. It leads to higher flight efficiency and more than 5% increase of the generation of lift and thrust.

  11. Enclosure enhancement of flight performance

    Directory of Open Access Journals (Sweden)

    Mehdi Ghommem

    2014-01-01

    Full Text Available We use a potential flow solver to investigate the aerodynamic aspects of flapping flights in enclosed spaces. The enclosure effects are simulated by the method of images. Our study complements previous aerodynamic analyses which considered only the near-ground flight. The present results show that flying in the proximity of an enclosure affects the aerodynamic performance of flapping wings in terms of lift and thrust generation and power consumption. It leads to higher flight efficiency and more than 5% increase of the generation of lift and thrust.

  12. Enclosure enhancement of flight performance

    KAUST Repository

    Ghommem, Mehdi

    2014-08-19

    We use a potential flow solver to investigate the aerodynamic aspects of flapping flights in enclosed spaces. The enclosure effects are simulated by the method of images. Our study complements previous aerodynamic analyses which considered only the near-ground flight. The present results show that flying in the proximity of an enclosure affects the aerodynamic performance of flapping wings in terms of lift and thrust generation and power consumption. It leads to higher flight efficiency and more than 5% increase of the generation of lift and thrust.

  13. Theseus Landing Following Maiden Flight

    Science.gov (United States)

    1996-01-01

    The Theseus prototype research aircraft shows off its high aspect-ratio wing as it comes in for a landing on Rogers Dry Lake after its first test flight from NASA's Dryden Flight Research Center, Edwards, California, on May 24, 1996. The Theseus aircraft, built and operated by Aurora Flight Sciences Corporation, Manassas, Virginia, was a unique aircraft flown at NASA's Dryden Flight Research Center, Edwards, California, under a cooperative agreement between NASA and Aurora. Dryden hosted the Theseus program, providing hangar space and range safety for flight testing. Aurora Flight Sciences was responsible for the actual flight testing, vehicle flight safety, and operation of the aircraft. The Theseus remotely piloted aircraft flew its maiden flight on May 24, 1996, at Dryden. During its sixth flight on November 12, 1996, Theseus experienced an in-flight structural failure that resulted in the loss of the aircraft. As of the beginning of the year 2000, Aurora had not rebuilt the aircraft. Theseus was built for NASA under an innovative, $4.9 million fixed-price contract by Aurora Flight Sciences Corporation and its partners, West Virginia University, Morgantown, West Virginia, and Fairmont State College, Fairmont, West Virginia. The twin-engine, unpiloted vehicle had a 140-foot wingspan, and was constructed largely of composite materials. Powered by two 80-horsepower, turbocharged piston engines that drove twin 9-foot-diameter propellers, Theseus was designed to fly autonomously at high altitudes, with takeoff and landing under the active control of a ground-based pilot in a ground control station 'cockpit.' With the potential ability to carry 700 pounds of science instruments to altitudes above 60,000 feet for durations of greater than 24 hours, Theseus was intended to support research in areas such as stratospheric ozone depletion and the atmospheric effects of future high-speed civil transport aircraft engines. Instruments carried aboard Theseus also would be able

  14. Skilled attendance at delivery; how skilled are institutional birth attendants? : An explorative study on birth attendants at Bansang Hospital, The Gambia

    OpenAIRE

    Kreyberg, Ina; Helsingen, Lise Mørkved

    2010-01-01

    Abstract Background: As reflected in the United Nations Millennium Development Goals (UN MDG 5), reducing maternal mortality represents an important area of concern. The common causes of maternal deaths may be preventable and treatable by having access to emergency obstetric care (EmOC), including skilled birth attendance (SBA), when needed. Measuring the presence of a birth attendant has been the main focus until now, not their skills and qualifications, and by this we cannot presuppose ...

  15. Class Attendance and Performance in Principles of Economics

    Science.gov (United States)

    Cohn, Elchanan; Johnson, Eric

    2006-01-01

    A sample of 347 students, enrolled in principles of economics classes during the period 1997-2001, is used to examine the relation between class attendance and student performance on examinations. Among the questions examined are: Is attendance related to performance, with and without controls for other factors? Do only substantial levels of…

  16. Attendance of male partners to different reproductive health services ...

    African Journals Online (AJOL)

    Additional in-depth interviews were conducted among married men found attending RH services. Factors that motivates the uptake of locally available RH services together with their partners were explored. Results: A total of 204 men participated in the study, 94.4 % (193/204) of them reported to have ever attended the RH ...

  17. Implementing Nunavut Education Act: Compulsory School Attendance Policy

    Science.gov (United States)

    Kwarteng, E. Fredua

    2006-01-01

    This paper discusses the implementation of Nunavut compulsory school attendance policy as part of the Nunavut Education Act (2002). Using a bottom-up approach to policy implementation in the literature and the author's six years teaching experience in Nunavut, the paper argues that the compulsory school attendance policy may not achieve its…

  18. Why September Matters: Improving Student Attendance. Policy Brief

    Science.gov (United States)

    Olsen, Linda S.

    2014-01-01

    This brief examines absences in September and students' attendance over the rest of the year. Attendance should be addressed before it becomes problematic. Chronic absenteeism, missing more than 20 days of a school year, is an early indicator of disengagement. High absence rates have negative consequences not only for individual students, but also…

  19. Point-Counterpoint: Should Attendance Be Required in Collegiate Classrooms?

    Science.gov (United States)

    Pinto, Jo Ann M.; Lohrey, Peter

    2016-01-01

    This paper examines two divergent viewpoints about whether or not class attendance should be mandatory in higher education. The authors, both accounting professors at the same institution, delineate their respective viewpoints citing school policy, federal regulations and academic freedom as factors which motivate their attendance policy.

  20. Management of School Attendance in the UK: A Strategic Analysis

    Science.gov (United States)

    Reid, Ken

    2010-01-01

    Prior to 1997, managing school attendance was the sole responsibility of the Department for Education and Skills (DfES). Since devolution, responsibility for school attendance has resided with each of the four UK-wide administrations. These are the Department for Children, Schools and Families (DCSF) in England; the Scottish Executive Education…

  1. 16 CFR 1012.4 - Public attendance at agency meetings.

    Science.gov (United States)

    2010-01-01

    ... 16 Commercial Practices 2 2010-01-01 2010-01-01 false Public attendance at agency meetings. 1012.4 Section 1012.4 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION GENERAL MEETINGS POLICY-MEETINGS BETWEEN AGENCY PERSONNEL AND OUTSIDE PARTIES § 1012.4 Public attendance at agency meetings. (a) Any person...

  2. Rural-Nonrural Differences in College Attendance Patterns

    Science.gov (United States)

    Byun, Soo-Yong; Irvin, Matthew J.; Meece, Judith L.

    2015-01-01

    Using data from the National Education Longitudinal Study of 1988, this study documented college attendance patterns of rural youth in terms of the selectivity of first postsecondary institution of attendance, the timing of transition to postsecondary education, and the continuity of enrollment. The study also examined how these college attendance…

  3. Factors affecting disclosure of serostatus to children attending Jinja ...

    African Journals Online (AJOL)

    Factors affecting disclosure of serostatus to children attending Jinja Hospital ... twenty children and all (ten) health workers at Jinja Hospital paediatric HIV clinic. ... and child attending psychosocial support group (OR 7.4 CI 3.6-15.3 p < 0.001).

  4. Knowledge and Practice of Traditional Birth Attendants (TBAs) in ...

    African Journals Online (AJOL)

    Introduction. One of the strategies Ministries of Health and their partners have adopted with the aim of promoting safe motherhood since the 1980's is training unskilled traditional birth attendants (TBAs). However, the assumption that training of traditional birth attendants (TBAs) would contribute greatly to reduce maternal ...

  5. 39 CFR 6.4 - Attendance by conference telephone call.

    Science.gov (United States)

    2010-07-01

    ... 39 Postal Service 1 2010-07-01 2010-07-01 false Attendance by conference telephone call. 6.4 Section 6.4 Postal Service UNITED STATES POSTAL SERVICE THE BOARD OF GOVERNORS OF THE U.S. POSTAL SERVICE MEETINGS (ARTICLE VI) § 6.4 Attendance by conference telephone call. For regularly scheduled meetings of...

  6. Postpartum care attendance at a rural district hospital in Zambia

    NARCIS (Netherlands)

    J. Lagro (Joep); A. Liche (Agnes); J. Mumba (John); R. Ntebeka (Ruth); J. van Roosmalen (Jos)

    2006-01-01

    textabstractPostpartum care is an important tool in both preventive and promotive maternal health care. We studied the postpartum care attendance rate in 540 women who delivered at a district hospital in Zambia. Forty-two percent of the women attended postpartum care within six weeks of delivery.

  7. Women's persistent utilisation of unskilled birth attendants in ...

    African Journals Online (AJOL)

    ... facilities to address the discrepancy between antenatal attendance and delivery by skilled birth attendance. We hope that the information generated from this study will be used by the policy makers leading to appropriate interventions or strategies which will reduce the number of home deliveries and maternal deaths.

  8. Traditional Birth Attendants Issue: A Menace in Developing Countries

    African Journals Online (AJOL)

    BACKGROUND: A significant proportion of births in Nigeria still occur at homes of traditional birth attendant. Traditional birth attendants are popular in developing and low resource countries. They lack no formal education or medical training and their clients end up with obstetric complications which lead to severe morbidity ...

  9. Barriers to Skilled Birth Attendance: A Survey among Mothers in ...

    African Journals Online (AJOL)

    More than seventy percent of the participants gave birth attended by a traditional birth attendant, but only 27% had intended to give birth at home. Sixty-four percent had made advance arrangements for the childbirth. Only 22% were informed about expected time of birth during antenatal care. Our findings suggest that the ...

  10. Indigenous Australians and Preschool Education: Who Is Attending?

    Science.gov (United States)

    Biddle, Nicholas

    2007-01-01

    This paper discusses the individual, family, household and area level characteristics associated with preschool attendance for Indigenous and non-Indigenous Australians (aged three to five years who are not at school). Controlling for these factors explains all of the difference between Indigenous and non-Indigenous attendance rates for…

  11. 6 CFR 13.23 - Subpoenas for attendance at hearing.

    Science.gov (United States)

    2010-01-01

    ... 6 Domestic Security 1 2010-01-01 2010-01-01 false Subpoenas for attendance at hearing. 13.23 Section 13.23 Domestic Security DEPARTMENT OF HOMELAND SECURITY, OFFICE OF THE SECRETARY PROGRAM FRAUD CIVIL REMEDIES § 13.23 Subpoenas for attendance at hearing. (a) A party wishing to procure the...

  12. Improving Emergency Attendance and Mortality – The Case for Unit ...

    African Journals Online (AJOL)

    METHODS: The study compared the outcomes (attendance and mortality) in a Single Emergency Model (SEM) with a USM, over a two-year period. Two groups of patients were studied - the SEM phase comprising 809 patients, and the USM phase comprising 3,505 patients. Data on patients' attendance and mortality in the ...

  13. The Influence of Advertising on Attendance at Park Programs

    Science.gov (United States)

    Reyburn, Jerry H.; Knudson, Douglas M.

    1975-01-01

    Investigated were the effects on attendance of four types of pre-program advertising: no advertising, personal invitation, signs, and innovation. All three advertising treatments increased program attendance over no advertising. Each advertising technique has advantages and disadvantages. Signs are impersonal, but effective. Personal invitation is…

  14. Social inequality in phase II cardiac rehabilitation attendance

    DEFF Research Database (Denmark)

    Pedersen, Maria; Egerod, Ingrid; Overgaard, Dorthe

    2018-01-01

    : Thirty per cent attended full cardiac rehabilitation. Patients with low educational attainment, comorbidities, long commute to cardiac rehabilitation centre, and lone dwelling were less likely to attend full cardiac rehabilitation, whereas patients with high anxiety and depression score were more likely...

  15. Malaria among antenatal clients attending primary health care ...

    African Journals Online (AJOL)

    This study assessed the prevalence of fever, malarial parasitemia and anemia among pregnant women attending PHC facilities in Kano, northern Nigeria. Methods: A cross-sectional descriptive study was conducted among 360 ANCs attending PHC facilities in two Local Government Areas (LGAs) in Kano state. Data were ...

  16. Substance abuse in outpatients attending rural and urban health ...

    African Journals Online (AJOL)

    Substance abuse in outpatients attending rural and urban health centres in Kenya. ... Objectives: To estimate the prevalence and pattern of substance use among patients attending primary health centres in urban and rural areas of Kenya. Design: A ... Socio-cultural factors might be responsible for the differences noted.

  17. Factors Affecting Utilization of Skilled Birth Attendants by Women in ...

    African Journals Online (AJOL)

    This underscores the need to investigate factors responsible for low use of skilled attendants at birth. The main purpose of the study was to identify factors affecting utilization of skilled attendants at birth by pregnant women in Kasama district in order to help contribute to the reduction of maternal and child complications.

  18. Boosting Student Attendance: Beyond Stickers, Stars, and Candy Bars

    Science.gov (United States)

    Dill, Vicky; Lopez, Patrick; Stahlke, Tim; Stamp, Jeanne

    2016-01-01

    We know that students cannot learn if they are not in school, and that students with economic challenges miss school more frequently than other students. What obstacles create this attendance gap, and how can school districts provide the supports to improve attendance for these students? The authors of this article, who work with the Texas…

  19. Factors associated with infertility among women attending the ...

    African Journals Online (AJOL)

    Objectives: The objective of this study was to investigate and determine the factors associated with infertility in women attending the gynaecology clinic at the University Teaching Hospital (UTH) in Lusaka, Zambia. Methods: Using an unmatched case-control study design, women attending the gynaecology clinic for infertility ...

  20. Utilization of skilled birth attendants at delivery among urban women ...

    African Journals Online (AJOL)

    Background: Maternal mortality ratio remains high in Nigeria and the Presence of skilled birth attendants at delivery is a key strategy towards reducing the rate. Objective: To determine the rate and factors that affect utilization of skilled birth attendants (SBA) among Igbo women in Nnewi, South-Eastern Nigeria. Methodology: ...

  1. Class attendance and academic performance of second year ...

    African Journals Online (AJOL)

    This study investigated the impact of classroom attendance on academic performance of university students in an Organic Chemistry course. It also looked into the moderating effect of gender on attendance and academic performance. Data was collected through expo-facto survey involving real time documentation of ...

  2. Self-Sampling for Human Papillomavirus Testing among Non-Attenders Increases Attendance to the Norwegian Cervical Cancer Screening Programme.

    Directory of Open Access Journals (Sweden)

    Espen Enerly

    Full Text Available Increasing attendance to screening offers the best potential for improving the effectiveness of well-established cervical cancer screening programs. Self-sampling at home for human papillomavirus (HPV testing as an alternative to a clinical sampling can be a useful policy to increase attendance. To determine whether self-sampling improves screening attendance for women who do not regularly attend the Norwegian Cervical Cancer Screening Programme (NCCSP, 800 women aged 25-69 years in the Oslo area who were due to receive a 2nd reminder to attend regular screening were randomly selected and invited to be part of the intervention group. Women in this group received one of two self-sampling devices, Evalyn Brush or Delphi Screener. To attend screening, women in the intervention group had the option of using the self-sampling device (self-sampling subgroup or visiting their physician for a cervical smear. Self-sampled specimens were split and analyzed for the presence of high-risk (hr HPV by the CLART® HPV2 test and the digene® Hybrid Capture (HC2 test. The control group consisted of 2593 women who received a 2nd reminder letter according to the current guidelines of the NCCSP. The attendance rates were 33.4% in the intervention group and 23.2% in the control group, with similar attendance rates for both self-sampling devices. Women in the self-sampling subgroup responded favorably to both self-sampling devices and cited not remembering receiving a call for screening as the most dominant reason for previous non-attendance. Thirty-two of 34 (94.1% hrHPV-positive women in the self-sampling subgroup attended follow-up. In conclusion, self-sampling increased attendance rates and was feasible and well received. This study lends further support to the proposal that self-sampling may be a valuable alternative for increasing cervical cancer screening coverage in Norway.

  3. Self-Sampling for Human Papillomavirus Testing among Non-Attenders Increases Attendance to the Norwegian Cervical Cancer Screening Programme.

    Science.gov (United States)

    Enerly, Espen; Bonde, Jesper; Schee, Kristina; Pedersen, Helle; Lönnberg, Stefan; Nygård, Mari

    2016-01-01

    Increasing attendance to screening offers the best potential for improving the effectiveness of well-established cervical cancer screening programs. Self-sampling at home for human papillomavirus (HPV) testing as an alternative to a clinical sampling can be a useful policy to increase attendance. To determine whether self-sampling improves screening attendance for women who do not regularly attend the Norwegian Cervical Cancer Screening Programme (NCCSP), 800 women aged 25-69 years in the Oslo area who were due to receive a 2nd reminder to attend regular screening were randomly selected and invited to be part of the intervention group. Women in this group received one of two self-sampling devices, Evalyn Brush or Delphi Screener. To attend screening, women in the intervention group had the option of using the self-sampling device (self-sampling subgroup) or visiting their physician for a cervical smear. Self-sampled specimens were split and analyzed for the presence of high-risk (hr) HPV by the CLART® HPV2 test and the digene® Hybrid Capture (HC)2 test. The control group consisted of 2593 women who received a 2nd reminder letter according to the current guidelines of the NCCSP. The attendance rates were 33.4% in the intervention group and 23.2% in the control group, with similar attendance rates for both self-sampling devices. Women in the self-sampling subgroup responded favorably to both self-sampling devices and cited not remembering receiving a call for screening as the most dominant reason for previous non-attendance. Thirty-two of 34 (94.1%) hrHPV-positive women in the self-sampling subgroup attended follow-up. In conclusion, self-sampling increased attendance rates and was feasible and well received. This study lends further support to the proposal that self-sampling may be a valuable alternative for increasing cervical cancer screening coverage in Norway.

  4. Rural/Nonrural Differences in College Attendance Patterns.

    Science.gov (United States)

    Byun, Soo-Yong; Irvin, Matthew J; Meece, Judith L

    Using data from the National Education Longitudinal Study of 1988, this study documented college attendance patterns of rural youth in terms of the selectivity of first postsecondary institution of attendance, the timing of transition to postsecondary education, and the continuity of enrollment. The study also examined how these college attendance patterns among rural students differed from those among their non-rural counterparts and which factors explained these rural/nonrural differences. Results showed that rural youth were less likely than their nonrural counterparts to attend a selective institution. In addition, rural youth were more likely to delay entry to postsecondary education, compared to their urban counterparts. Finally, rural students were less likely than their urban counterparts to be continuously enrolled in college. Much of these rural/nonrural disparities in college attendance patterns were explained by rural/nonrural differences in socioeconomic status and high school preparation. Policy implications, limitations of the study, and future research directions are also discussed.

  5. Design of Lightweight e Attendance Prototype Using Raspberry Pi

    International Nuclear Information System (INIS)

    Mohd Dzul Aiman Aslan; Mohamad Safuan Sulaiman; Saaidi Ismail; Mohd Fauzi Haris; Nurbahyah Hamdan; Abdul Muin Abd Rahman

    2014-01-01

    E-Attendance is a system that has been extensively used to record attendance in most of the official ceremony of Nuclear Malaysia. Currently, a computer is used as the client to record the input from the proximity card. However, further study on Raspberry Pi, the single board computer that use system on a chip (SoC) in the current market, discover that it is capable of delivering a simple light task of the e-attendance. With a compact memory and in linux environment, a prototype for lightweight e-attendance is being developed. This prototype of Raspberry Pi is believe to have potential in computer based system of Nuclear Technology such as access control, monitoring system and even robotic assistance. This paper will discuss the design of the prototype that resemble e-attendance to improve the robustness of the system. (author)

  6. Computer program for the automated attendance accounting system

    Science.gov (United States)

    Poulson, P.; Rasmusson, C.

    1971-01-01

    The automated attendance accounting system (AAAS) was developed under the auspices of the Space Technology Applications Program. The task is basically the adaptation of a small digital computer, coupled with specially developed pushbutton terminals located in school classrooms and offices for the purpose of taking daily attendance, maintaining complete attendance records, and producing partial and summary reports. Especially developed for high schools, the system is intended to relieve both teachers and office personnel from the time-consuming and dreary task of recording and analyzing the myriad classroom attendance data collected throughout the semester. In addition, since many school district budgets are related to student attendance, the increase in accounting accuracy is expected to augment district income. A major component of this system is the real-time AAAS software system, which is described.

  7. "Space flight is utter bilge"

    Science.gov (United States)

    Yeomans, Donald

    2004-01-01

    Despite skepticism and ridicule from scientists and the public alike, a small handful of dreamers kept faith in their vision of space flight and planned for the day when humanity would break loose from Earth.

  8. Robust Decentralized Formation Flight Control

    Directory of Open Access Journals (Sweden)

    Zhao Weihua

    2011-01-01

    Full Text Available Motivated by the idea of multiplexed model predictive control (MMPC, this paper introduces a new framework for unmanned aerial vehicles (UAVs formation flight and coordination. Formulated using MMPC approach, the whole centralized formation flight system is considered as a linear periodic system with control inputs of each UAV subsystem as its periodic inputs. Divided into decentralized subsystems, the whole formation flight system is guaranteed stable if proper terminal cost and terminal constraints are added to each decentralized MPC formulation of the UAV subsystem. The decentralized robust MPC formulation for each UAV subsystem with bounded input disturbances and model uncertainties is also presented. Furthermore, an obstacle avoidance control scheme for any shape and size of obstacles, including the nonapriorily known ones, is integrated under the unified MPC framework. The results from simulations demonstrate that the proposed framework can successfully achieve robust collision-free formation flights.

  9. Solar array flight dynamic experiment

    Science.gov (United States)

    Schock, Richard W.

    1987-01-01

    The purpose of the Solar Array Flight Dynamic Experiment (SAFDE) is to demonstrate the feasibility of on-orbit measurement and ground processing of large space structures' dynamic characteristics. Test definition or verification provides the dynamic characteristic accuracy required for control systems use. An illumination/measurement system was developed to fly on space shuttle flight STS-41D. The system was designed to dynamically evaluate a large solar array called the Solar Array Flight Experiment (SAFE) that had been scheduled for this flight. The SAFDE system consisted of a set of laser diode illuminators, retroreflective targets, an intelligent star tracker receiver and the associated equipment to power, condition, and record the results. In six tests on STS-41D, data was successfully acquired from 18 retroreflector targets and ground processed, post flight, to define the solar array's dynamic characteristic. The flight experiment proved the viability of on-orbit test definition of large space structures dynamic characteristics. Future large space structures controllability should be greatly enhanced by this capability.

  10. Psychiatric status, somatisation, and health care utilization of frequent attenders at the emergency department: a comparison with routine attenders.

    Science.gov (United States)

    Williams, E R; Guthrie, E; Mackway-Jones, K; James, M; Tomenson, B; Eastham, J; McNally, D

    2001-03-01

    Seventy-seven frequent attenders at an emergency department (ED) in an inner-city hospital in the UK (defined as seven or more visits in the previous 12 months) were compared with 182 patients who were attending the same department on a routine basis. Patients completed the Schedules for Clinical Assessment in Neuropsychiatry (SCAN) and the Short Form (SF)-36. Information was obtained on 64% of the frequent attenders and 45% underwent a detailed psychiatric assessment. Of the frequent attenders, 45% had psychiatric disorder and 49% had some form of an alcohol-related disorder. Compared with routine attenders, frequent attenders reported lower health status, had more psychiatric disorder (odds ratio: OR=8.2, 95% confidence interval: CI=3.8--18.1), had more general hospital admissions (OR=19.9, 95% CI=8.3--47.8), more psychiatric admissions (OR=167.5, 95% CI=9.5--2959.0), and more GP visits (95% CI for difference=-10.2 to -5.7). There was no evidence that frequent attenders had more somatisation than routine attenders. Specific treatment and management strategies need to be developed for this group of patients, although a substantial proportion may be difficult to engage in the treatment process.

  11. Prospective study on determinants of repeat attendance and attendance patterns in breast cancer screening using the Theory of Planned Behaviour.

    NARCIS (Netherlands)

    Drossaert, Constance H.C.; Boer, Hendrik; Seydel, E.R.

    2003-01-01

    This prospective study, using the Theory of Planned Behaviour (TPB) as a theoretical framework, was carried out to identify the determinants of repeat attendance and attendance patterns in organised breast screening. A group of 2657 women filled out a baseline questionnaire, approximately 8 weeks

  12. Wanting to attend isn't just wanting to quit: why some disadvantaged smokers regularly attend smoking cessation behavioural therapy while others do not: a qualitative study.

    Science.gov (United States)

    Benson, Fiona E; Stronks, Karien; Willemsen, Marc C; Bogaerts, Nina M M; Nierkens, Vera

    2014-07-07

    Attendance of a behavioural support programme facilitates smoking cessation. Disadvantaged smokers have been shown to attend less than their more affluent peers. We need to gain in-depth insight into underlying reasons for differing attendance behaviour in disadvantaged smokers, to better address this issue. This study aims to explore the underlying motivations, barriers and social support of smokers exhibiting different patterns of attendance at a free smoking cessation behavioural support programme in a disadvantaged neighbourhood of The Netherlands. In 29 smokers undertaking smoking cessation group therapy or telephone counselling in a disadvantaged neighbourhood, qualitative interviews were completed, coded and analysed. Major themes were motivations, barriers to attend and social support. Motivations and social support were analysed with reference to the self-determination theory. Two distinct patterns of attendance emerged: those who missed up to two sessions ("frequent attenders"), and those who missed more than two sessions ("infrequent attenders"). The groups differed in their motivations to attend, barriers to attendance, and in the level of social support they received. In comparison with the infrequent attenders, frequent attenders more often had intrinsic motivation to attend (e.g. enjoyed attending), and named more self-determined extrinsic motivations to attend, such as commitment to attendance and wanting to quit. Most of those mentioning intrinsic motivation did not mention a desire to quit as a motivation for attendance. No organizational barriers to attendance were mentioned by frequent attenders, such as misunderstandings around details of appointments. Frequent attenders experienced more social support within and outside the course. Motivation to attend behavioural support, as distinct from motivation to quit smoking, is an important factor in attendance of smoking cessation courses in disadvantaged areas. Some focus on increasing motivation to

  13. Automated ISS Flight Utilities

    Science.gov (United States)

    Offermann, Jan Tuzlic

    2016-01-01

    EVADES output. As mentioned above, GEnEVADOSE makes extensive use of ROOT version 6, the data analysis framework developed at the European Organization for Nuclear Research (CERN), and the code is written to the C++11 standard (as are the other projects). My second project is the Automated Mission Reference Exposure Utility (AMREU).Unlike GEnEVADOSE, AMREU is a combination of three frameworks written in both Python and C++, also making use of ROOT (and PyROOT). Run as a combination of daily and weekly cron jobs, these macros query the SRAG database system to determine the active ISS missions, and query minute-by-minute radiation dose information from ISS-TEPC (Tissue Equivalent Proportional Counter), one of the radiation detectors onboard the ISS. Using this information, AMREU creates a corrected data set of daily radiation doses, addressing situations where TEPC may be offline or locked up by correcting doses for days with less than 95% live time (the total amount time the instrument acquires data) by averaging the past 7 days. As not all errors may be automatically detectable, AMREU also allows for manual corrections, checking an updated plaintext file each time it runs. With the corrected data, AMREU generates cumulative dose plots for each mission, and uses a Python script to generate a flight note file (.docx format) containing these plots, as well as information sections to be filled in and modified by the space weather environment officers with information specific to the week. AMREU is set up to run without requiring any user input, and it automatically archives old flight notes and information files for missions that are no longer active. My other projects involve cleaning up a large data set from the Charged Particle Directional Spectrometer (CPDS), joining together many different data sets in order to clean up information in SRAG SQL databases, and developing other automated utilities for displaying information on active solar regions, that may be used by the

  14. How common is multiple general practice attendance in Australia?

    Science.gov (United States)

    Wright, Michael; Hall, Jane; van Gool, Kees; Haas, Marion

    2018-05-01

    Australians can seek general practice care from multiple general practitioners (GPs) in multiple locations. This provides high levels of patient choice but may reduce continuity of care. The aim of this study was to estimate the prevalence of attendance at multiple general practices in Australia, and identify patient characteristics associated with multiple practice attendances. A cross-sectional survey of 2477 Australian adults was conducted online in July 2013. Respondents reported whether they had attended more than one general practice in the past year, and whether they had a usual general practice and GP. Demographic information, health service use and practice characteristics were also obtained from the survey. Over one-quarter of the sample reported attending more than one practice in the previous year. Multiple practice attendance is less common with increasing age, and less likely for survey respondents from regional Australia, compared with respondents from metropolitan areas. Multiple practice attenders are just as likely as single practice attenders to have a usual GP. A significant proportion of general practice care is delivered away from usual practices. This may have implications for health policy, in terms of continuity and quality of primary care.

  15. Association between Breastfeeding Duration and Type of Birth Attendant

    Directory of Open Access Journals (Sweden)

    Jordyn T. Wallenborn

    2018-01-01

    Full Text Available Introduction. Healthcare providers play an integral role in breastfeeding education and subsequent practices; however, the education and support provided to patients may differ by type of provider. The current study aims to evaluate the association between type of birth attendant and breastfeeding duration. Methods. Data from the prospective longitudinal study, Infant Feeding Practices Survey II, was analyzed. Breastfeeding duration and exclusive breastfeeding duration were defined using the American Academy of Pediatrics’ national recommendations. Type of birth attendant was categorized into obstetricians, other physicians, and midwife or nurse midwife. If mothers received prenatal care from a different type of provider than the birth attendant, they were excluded from the analysis. Multinomial logistic regression was conducted to obtain crude and adjusted odds ratios and 95% confidence intervals. Results. Compared to mothers whose births were attended by an obstetrician, mothers with a family doctor or midwife were twice as likely to breastfeed at least six months. Similarly, mothers with a midwife birth attendant were three times as likely to exclusively breastfeed less than six months and six times more likely to exclusively breastfeed at least six months compared to those who had an obstetrician birth attendant. Conclusions. Findings from the current study highlight the importance of birth attendants in breastfeeding decisions. Interventions are needed to overcome barriers physicians encounter while providing breastfeeding support and education. However, this study is limited by several confounding factors that have not been controlled for as well as by the self-selection of the population.

  16. 14 CFR 27.151 - Flight controls.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Flight controls. 27.151 Section 27.151... STANDARDS: NORMAL CATEGORY ROTORCRAFT Flight Flight Characteristics § 27.151 Flight controls. (a) Longitudinal, lateral, directional, and collective controls may not exhibit excessive breakout force, friction...

  17. 14 CFR 29.151 - Flight controls.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Flight controls. 29.151 Section 29.151... STANDARDS: TRANSPORT CATEGORY ROTORCRAFT Flight Flight Characteristics § 29.151 Flight controls. (a) Longitudinal, lateral, directional, and collective controls may not exhibit excessive breakout force, friction...

  18. F-14 in banked flight

    Science.gov (United States)

    1979-01-01

    NASA 991, an F-14 Navy Tomcat designated the F-14 (1X), is seen here in banked flight over the desert on a research flight at NASA's Dryden Flight Research Center, Edwards, California. The F-14 was used at Dryden between 1979 and 1985 in extensive high-angle-of-attack and spin-control-and-recovery tests. The NASA/Navy program, which included 212 total flights, acheived considerable improvement in the F-14 high-angle-of-attack flying qualities, improved departure and spin resistance, and contributed to substantial improvements in reducing 'wing rock,' (i.e., tilting from one side to another), at high angles of attack. The Navy had been experiencing inadvertant spin entries caused by the F-14's aileron rudder interconnect. The NASA/Navy/Grumman team developed and tested 4 different configurations of the aileron rudder interconnect to address the spin problem. These problems prompted the Navy to ask the manufacturer, Grumman, and NASA to investigate the issue. NASA 991 had numerous special additions for high-angle-of-attack and spin-recovery research. These included a battery-powered auxiliary power unit, a flight test nose boom, and a special spin recovery system, consisting of forward mounted, hydraulically actuated canards and an emergency spin chute. NASA's F-14 was first flown by NASA research pilots, but was later flown by Grumman, and by Navy test pilots from Patuxent River Naval Air Station (NAS). The Navy test flights with the spin research vehicle constituted the first program that incorporated air combat maneuvering in its test flights at Dryden. The Navy brought F-14s from Point Mugu and Miramar NAS in San Diego to test the new spin control laws in combat situations. Although the new control laws proved valuable, the Navy did not incorporate them into production F-14s until the F-14D, nearly 15 years later.

  19. Aurora Flight Sciences' Perseus B Remotely Piloted Aircraft in Flight

    Science.gov (United States)

    1998-01-01

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

  20. Psychosocial predictors of first attendance for organised mammography screening

    DEFF Research Database (Denmark)

    Aro, A R; de Koning, H J; Absetz, P

    1999-01-01

    Scale, Illness Attitude Scale, Health Locus of Control Scale, Anxiety Inventory, and Depression Inventory. Univariate and multivariate logistic regression analyses were used to predict attendance. RESULTS: Those most likely to attend were working, middle income, and averagely educated women, who had...... not had a mass mammogram recently, but who regularly visited gynaecologists, attended for Pap smear screening, practised breast self examination, and who did not smoke. Low confidence in their own capabilities in breast cancer prevention, overoptimism about the sensitivity of mammography, and perception...

  1. Attendance, Employability, Student Performance and Electronic Course Materials

    DEFF Research Database (Denmark)

    Sund, Kristian J.

    2016-01-01

    This chapter discusses the possible detrimental effects of low attendance on the achievement of important learning outcomes in terms of "soft" employability-enhancing skills among undergraduate students in business schools, and explores how the use of learning technologies may contribute to high...... or low class attendance levels. The chapter describes the exploratory results of a survey carried out among final year bachelor students attending a strategic management course, the findings of which suggest that a significant number of students view virtual learning environments as a substitute...

  2. 24/7 pediatric radiology attending coverage: times are changing

    Energy Technology Data Exchange (ETDEWEB)

    Donaldson, James S. [Feinberg School of Medicine at Northwestern University, Department of Medical Imaging, Ann and Robert H. Lurie Children' s Hospital of Chicago, IL (United States); Thakrar, Kiran H. [University of Chicago Pritzker School of Medicine, Body Imaging, NorthShore University HealthSystem, Chicago, IL (United States)

    2017-06-15

    The job of the pediatric radiologist long ago ceased to be an 8-to-5 role. Many practices have adopted evening shifts of in-house attending radiologists to cover the busy evening activity. With the ever-increasing role of imaging in clinical decisions and patient management, there is a need - if not a demand - to further extend attending pediatric radiology coverage. In this article, we discuss the needs and justification for extending pediatric radiology coverage at a tertiary-care children's hospital. We also describe the approach we took toward implementing 24/7 attending in-house coverage of pediatric radiology. (orig.)

  3. Professional development through attending conferences: reflections of a health librarian.

    Science.gov (United States)

    Jenkins, Ruth

    2015-06-01

    In this article, guest writer Ruth Jenkins from Berkshire Heathcare Foundation Trust reflects on two conferences she attended in 2014, LILAC and SLA. Through the process of reflection, she considers the benefits that attending conferences can have to library and information professionals in the health sector. In particular, she discusses the opportunities and areas for learning and professional development that conferences can offer including evidence-based practice and current awareness, gaining new knowledge and objectivity, and networking and the unexpected benefits of conferences. Ruth also offers some practical hints and tips on ways to facilitate your attendance at conferences, including through awards and funding. H.S. © 2015 Health Libraries Group.

  4. In-flight sleep of flight crew during a 7-hour rest break: implications for research and flight safety.

    Science.gov (United States)

    Signal, T Leigh; Gander, Philippa H; van den Berg, Margo J; Graeber, R Curtis

    2013-01-01

    To assess the amount and quality of sleep that flight crew are able to obtain during flight, and identify factors that influence the sleep obtained. Flight crew operating flights between Everett, WA, USA and Asia had their sleep recorded polysomnographically for 1 night in a layover hotel and during a 7-h in-flight rest opportunity on flights averaging 15.7 h. Layover hotel and in-flight crew rest facilities onboard the Boeing 777-200ER aircraft. Twenty-one male flight crew (11 Captains, mean age 48 yr and 10 First Officers, mean age 35 yr). N/A. Sleep was recorded using actigraphy during the entire tour of duty, and polysomnographically in a layover hotel and during the flight. Mixed model analysis of covariance was used to determine the factors affecting in-flight sleep. In-flight sleep was less efficient (70% vs. 88%), with more nonrapid eye movement Stage 1/Stage 2 and more frequent awakenings per h (7.7/h vs. 4.6/h) than sleep in the layover hotel. In-flight sleep included very little slow wave sleep (median 0.5%). Less time was spent trying to sleep and less sleep was obtained when sleep opportunities occurred during the first half of the flight. Multivariate analyses suggest age is the most consistent factor affecting in-flight sleep duration and quality. This study confirms that even during long sleep opportunities, in-flight sleep is of poorer quality than sleep on the ground. With longer flight times, the quality and recuperative value of in-flight sleep is increasingly important for flight safety. Because the age limit for flight crew is being challenged, the consequences of age adversely affecting sleep quantity and quality need to be evaluated.

  5. System Identification of Flight Mechanical Characteristics

    OpenAIRE

    Larsson, Roger

    2013-01-01

    With the demand for more advanced fighter aircraft, relying on relaxed stability or even unstable flight mechanical characteristics to gain flight performance, more focus has been put on model-based system engineering to help with the design work. The flight control system design is one important part that relies on this modeling. Therefore it has become more important to develop flight mechanical models that are highly accurate in the whole flight envelop. For today’s newly developed fighter...

  6. Supersonic Retropropulsion Flight Test Concepts

    Science.gov (United States)

    Post, Ethan A.; Dupzyk, Ian C.; Korzun, Ashley M.; Dyakonov, Artem A.; Tanimoto, Rebekah L.; Edquist, Karl T.

    2011-01-01

    NASA's Exploration Technology Development and Demonstration Program has proposed plans for a series of three sub-scale flight tests at Earth for supersonic retropropulsion, a candidate decelerator technology for future, high-mass Mars missions. The first flight test in this series is intended to be a proof-of-concept test, demonstrating successful initiation and operation of supersonic retropropulsion at conditions that replicate the relevant physics of the aerodynamic-propulsive interactions expected in flight. Five sub-scale flight test article concepts, each designed for launch on sounding rockets, have been developed in consideration of this proof-of-concept flight test. Commercial, off-the-shelf components are utilized as much as possible in each concept. The design merits of the concepts are compared along with their predicted performance for a baseline trajectory. The results of a packaging study and performance-based trade studies indicate that a sounding rocket is a viable launch platform for this proof-of-concept test of supersonic retropropulsion.

  7. 14 CFR 25.865 - Fire protection of flight controls, engine mounts, and other flight structure.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Fire protection of flight controls, engine... Design and Construction Fire Protection § 25.865 Fire protection of flight controls, engine mounts, and other flight structure. Essential flight controls, engine mounts, and other flight structures located in...

  8. Psychosocial impact of infertility among women attending Yusuf ...

    African Journals Online (AJOL)

    Psychosocial impact of infertility among women attending Yusuf Dantsoho Memorial ... support, along with a General Health Questionnaire and a family APGAR as ... inability to enjoy day to day activities (11.2%), lack of concentration at work ...

  9. Determinants of Home Delivery among Women attending Antenatal ...

    African Journals Online (AJOL)

    USER

    Abstract. Unskilled home delivery is a threat to maternal and child health. ... home delivery after attending antenatal services, this study employed a cross-sectional design and a non-probability purposive ... deaths occur in sub-Saharan Africa.

  10. Professor Atta invited to attend WSIS as `eminent scientist'

    CERN Multimedia

    2003-01-01

    Ministry of Science and Technology Prof. Atta-ur-Rahman has been nominated as an "eminent scientist" to attend the roundtables during "World Summit on the Information Society (WSIS)" on December 12 (1 paragraph).

  11. class attendance and academic performance of second year

    African Journals Online (AJOL)

    Temechegn

    Data was collected through expo-facto survey involving real time ... still a major concern for educators and educational researchers all over the world ..... attendance on students' academic performance using association rule mining technique.

  12. Blood Pressure Home Monitoring in Hypertensive Patients Attending ...

    African Journals Online (AJOL)

    Blood Pressure Home Monitoring in Hypertensive Patients Attending a Tertiary ... Sixty percent of the patients were aged 50 - 69 years. ... Patients with high BP readings reported that they exercise more and reduced their daily salt intake.

  13. Anaemia in Patients with Diabetes Mellitus attending regular ...

    African Journals Online (AJOL)

    Anaemia in Patients with Diabetes Mellitus attending regular Diabetic ... Nigerian Journal of Health and Biomedical Sciences ... some patients may omit important food items in their daily diet for fear of increasing their blood sugar level.

  14. Skilled Birth Attendance in Nigeria: A Function of Frequency and ...

    African Journals Online (AJOL)

    AJRH Managing Editor

    of maternal mortality especially in developing countries ... of this MDG by measuring the proportion of births attended by a ... tetanus vaccination, HIV/AIDS counseling and testing ..... for improvement in the evaluation and research of maternal ...

  15. Motivational variables that influence fan attendance in domestic ...

    African Journals Online (AJOL)

    A convenience sample of 180 fans was surveyed from a Gauteng based team. A factor analytical approach revealed seven dimensions of fan motivation, namely, ... marketing communication strategies in various aspects of fan attendance.

  16. factors associated with late antenatal care attendance in selected

    African Journals Online (AJOL)

    Esem

    perception of no benefits derived from commencement of ... despite efforts to reverse the trend. ..... Table 4: Predictors of Late ANC attendance in Mpongwe and Ndola-logistic regression .... Institutional and Public Policy Factors Associated.

  17. Post traumatic stress disorder among former child soldiers attending ...

    African Journals Online (AJOL)

    Post traumatic stress disorder among former child soldiers attending a rehabilitative service ... school in northern Uganda with a case of mass psychotic behavior. ... Methods: Data on post-traumatic stress disorder, depressed mood, physical ...

  18. ocular findings in children with cerebral palsy attending a tertiary

    African Journals Online (AJOL)

    ocular abnormalities among children with cerebral palsy that attended the neurology clinic of University of. Ilorin Teaching ... recognize faces or hand-held toys (Chen, Weinberg and Catalano ... palsy that is also blind/visually impaired pose a.

  19. Decline in the prevalence HIV among pregnant women attending ...

    African Journals Online (AJOL)

    Decline in the prevalence HIV among pregnant women attending antenatal clinics in Tanzania, 2001-2011. ... Journal Home > Vol 19, No 2 (2017) > ... as age, marital status, parity, education level and duration of stay at present residence.

  20. Iron Deficiency Anaemia In Reproductive Age Women Attending ...

    African Journals Online (AJOL)

    Iron Deficiency Anaemia In Reproductive Age Women Attending Obstetrics And ... prevalence of iron deficiency anemia in reproductive age women, and their relation to ... Thus iron deficiency anemia during pregnancy in well-educated set up ...

  1. Student decisions about lecture attendance: do electronic course materials matter?

    Science.gov (United States)

    Billings-Gagliardi, Susan; Mazor, Kathleen M

    2007-10-01

    This study explored whether first-year medical students make deliberate decisions about attending nonrequired lectures. If so, it sought to identify factors that influence these decisions, specifically addressing the potential impact of electronic materials. Medical students who completed first-year studies between 2004 and 2006 responded to an open-ended survey question about their own lecture-attendance decisions. Responses were coded to capture major themes. Students' ratings of the electronic materials were also examined. Most respondents made deliberate attendance decisions. Decisions were influenced by previous experiences with the lecturer, predictions of what would occur during the session itself, personal learning preferences, and learning needs at that particular time, with the overriding goal of maximizing learning. Access to electronic materials did not influence students' choices. Fears that the increasing availability of technology-enhanced educational materials has a negative impact on lecture attendance seem unfounded.

  2. Human tolerance to space flight

    Science.gov (United States)

    Huntoon, C. L.

    1989-01-01

    Medical studies of astronauts and cosmonauts before, during, and after space missions have identified several effects of weightlessness and other factors that influence the ability of humans to tolerate space flight. Weightlessness effects include space motion sickness, cardiovascular abnormalities, reduction in immune system function, loss of red blood cells, loss of bone mass, and muscle atrophy. Extravehicular activity (EVA) increases the likelihood that decompression sickness may occur. Radiation also gives reason for concern about health of crewmembers, and psychological factors are important on long-term flights. Countermeasures that have been used include sensory preadaptation, prebreathing and use of various air mixtures for EVA, loading with water and electrolytes, exercise, use of pharmacological agents and special diets, and psychological support. It appears that humans can tolerate and recover satisfactorily from at least one year of space flight, but a number of conditions must be further ameliorated before long-duration missions can be considered routine.

  3. X-36 during First Flight

    Science.gov (United States)

    1997-01-01

    The remotely-piloted X-36 Tailless Fighter Agility Research Aircraft climbs out from Rogers Dry Lake at the Dryden Flight Research Center on its first flight in May 1997. The aircraft flew for five minutes and reached an altitude of approximately 4,900 feet. The NASA/Boeing X-36 Tailless Fighter Agility Research Aircraft program successfully demonstrated the tailless fighter design using advanced technologies to improve the maneuverability and survivability of possible future fighter aircraft. The program met or exceeded all project goals. For 31 flights during 1997 at the Dryden Flight Research Center, Edwards, California, the project team examined the aircraft's agility at low speed / high angles of attack and at high speed / low angles of attack. The aircraft's speed envelope reached up to 206 knots (234 mph). This aircraft was very stable and maneuverable. It handled very well. The X-36 vehicle was designed to fly without the traditional tail surfaces common on most aircraft. Instead, a canard forward of the wing was used as well as split ailerons and an advanced thrust-vectoring nozzle for directional control. The X-36 was unstable in both pitch and yaw axes, so an advanced, single-channel digital fly-by-wire control system (developed with some commercially available components) was put in place to stabilize the aircraft. Using a video camera mounted in the nose of the aircraft and an onboard microphone, the X-36 was remotely controlled by a pilot in a ground station virtual cockpit. A standard fighter-type head-up display (HUD) and a moving-map representation of the vehicle's position within the range in which it flew provided excellent situational awareness for the pilot. This pilot-in-the-loop approach eliminated the need for expensive and complex autonomous flight control systems and the risks associated with their inability to deal with unknown or unforeseen phenomena in flight. Fully fueled the X-36 prototype weighed approximately 1,250 pounds. It was 19

  4. Attendance and exam performance at university: A case study

    OpenAIRE

    Allen, D. O.; Webber, D. J.

    2010-01-01

    The link between absenteeism and students’ academic performance at university is perpetually a hot topic for teaching academics. Most studies suggest the effect is negative, although the strength of this effect is in dispute. The issue is complicated further when researchers draw their inferences from different angles, such as the removal of a mandatory attendance policy or the implementation of a module-specific attendance policy. Although previous studies have suggested the effect on exam p...

  5. Systematization of Angra-1 operation attendance - Maintenance and periodic testings

    International Nuclear Information System (INIS)

    Furieri, E.B.; Carvalho Bruno, N. de; Salaverry, N.A.

    1988-01-01

    A maintenance analysis, their types and their functions for the safety of nuclear power plants is done. Programs and present trends in the reactor maintenance, as well as the maintenance program and periodic tests of Angra I, are analysed. The necessities of safety analysis and a systematization for maintenance attendance are discussed and the periodic testing as well as the attendance of international experience. (M.C.K.) [pt

  6. Enabling Electric Propulsion for Flight

    Science.gov (United States)

    Ginn, Starr Renee

    2015-01-01

    Team Seedling project AFRC and LaRC 31ft distributed electric propulsion wing on truck bed up 75 miles per hour for coefficient of lift validation. Convergent Aeronautic Solutions project, sub-project Convergent Electric Propulsion Technologies AFRC, LaRC and GRC, re-winging a 4 passenger Tecnam aircraft with a 31ft distributed electric propulsion wing. Advanced Air Transport Technologies (Fixed Wing), Hybrid Electric Research Theme, developing a series hybrid ironbird and flight sim to study integration and performance challenges in preparation for a 1-2 MW flight project.

  7. CHANGES IN FLIGHT TRAINEE PERFORMANCE FOLLOWING SYNTHETIC HELICOPTER FLIGHT TRAINING.

    Science.gov (United States)

    CARO, PAUL W., JR.; ISLEY, ROBERT N.

    A STUDY WAS CONDUCTED AT THE U.S. ARMY PRIMARY HELICOPTER SCHOOL, FORT WOLTERS, TEXAS, TO DETERMINE WHETHER THE USE OF A HELICOPTER TRAINING DEVICE WOULD IMPROVE STUDENT PERFORMANCE DURING SUBSEQUENT HELICOPTER CONTACT FLIGHT TRAINING. SUBJECTS WERE TWO EXPERIMENTAL GROUPS AND TWO CONTROL GROUPS OF WARRANT OFFICER CANDIDATES ENROLLED FOR A…

  8. Orion Exploration Flight Test Post-Flight Inspection and Analysis

    Science.gov (United States)

    Miller, J. E.; Berger, E. L.; Bohl, W. E.; Christiansen, E. L.; Davis, B. A.; Deighton, K. D.; Enriquez, P. A.; Garcia, M. A.; Hyde, J. L.; Oliveras, O. M.

    2017-01-01

    The principal mechanism for developing orbital debris environment models, is to make observations of larger pieces of debris in the range of several centimeters and greater using radar and optical techniques. For particles that are smaller than this threshold, breakup and migration models of particles to returned surfaces in lower orbit are relied upon to quantify the flux. This reliance on models to derive spatial densities of particles that are of critical importance to spacecraft make the unique nature of the EFT-1's return surface a valuable metric. To this end detailed post-flight inspections have been performed of the returned EFT-1 backshell, and the inspections identified six candidate impact sites that were not present during the pre-flight inspections. This paper describes the post-flight analysis efforts to characterize the EFT-1 mission craters. This effort included ground based testing to understand small particle impact craters in the thermal protection material, the pre- and post-flight inspection, the crater analysis using optical, X-ray computed tomography (CT) and scanning electron microscope (SEM) techniques, and numerical simulations.

  9. Factors Affecting Non-Attendance in Irish Primary Schools and Reasons for Differences between Urban and Rural levels of Non-attendance

    OpenAIRE

    Gurhy, Anne Marie; Perry, Glen; Farrell, Mark

    2018-01-01

    This study will investigative the factors that influence school non-attendance, in designated disadvantaged Irish primary schools (DEIS1). Currently, no comprehensive data exists on the factors contributing to the levels and types of non-attendance within the Irish context. Since 2003/2004, the National Educational Welfare Board (NEWB, Appendix A) the agency with responsibility for school attendance, has collected specific data on attendance levels and the frequency of non-attendance across a...

  10. Vision based flight procedure stereo display system

    Science.gov (United States)

    Shen, Xiaoyun; Wan, Di; Ma, Lan; He, Yuncheng

    2008-03-01

    A virtual reality flight procedure vision system is introduced in this paper. The digital flight map database is established based on the Geographic Information System (GIS) and high definitions satellite remote sensing photos. The flight approaching area database is established through computer 3D modeling system and GIS. The area texture is generated from the remote sensing photos and aerial photographs in various level of detail. According to the flight approaching procedure, the flight navigation information is linked to the database. The flight approaching area vision can be dynamic displayed according to the designed flight procedure. The flight approaching area images are rendered in 2 channels, one for left eye images and the others for right eye images. Through the polarized stereoscopic projection system, the pilots and aircrew can get the vivid 3D vision of the flight destination approaching area. Take the use of this system in pilots preflight preparation procedure, the aircrew can get more vivid information along the flight destination approaching area. This system can improve the aviator's self-confidence before he carries out the flight mission, accordingly, the flight safety is improved. This system is also useful in validate the visual flight procedure design, and it helps to the flight procedure design.

  11. STS-70 Post Flight Presentation

    Science.gov (United States)

    Peterson, Glen (Editor)

    1995-01-01

    In this post-flight overview, the flight crew of the STS-70 mission, Tom Henricks (Cmdr.), Kevin Kregel (Pilot), Major Nancy Currie (MS), Dr. Mary Ellen Weber (MS), and Dr. Don Thomas (MS), discuss their mission and accompanying experiments. Pre-flight, launch, and orbital footage is followed by the in-orbit deployment of the Tracking and Data Relay Satellite (TDRS) and a discussion of the following spaceborne experiments: a microgravity bioreactor experiment to grow 3D body-like tissue; pregnant rat muscular changes in microgravity; embryonic development in microgravity; Shuttle Amateur Radio Experiment (SAREX); terrain surface imagery using the HERCULES camera; and a range of other physiological tests, including an eye and vision test. Views of Earth include: tropical storm Chantal; the Nile River and Red Sea; lightning over Brazil. A three planet view (Earth, Mars, and Venus) was taken right before sunrise. The end footage shows shuttle pre-landing checkout, entry, and landing, along with a slide presentation of the flight.

  12. ALICE Time Of Flight Detector

    CERN Multimedia

    Alici, A

    2013-01-01

    Charged particles in the intermediate momentum range are identified in ALICE by the Time Of Flight (TOF) detector. The time measurement with the TOF, in conjunction with the momentum and track length measured by the tracking detector, is used to calculate the particle mass.

  13. Bat Flight and Zoonotic Viruses

    Centers for Disease Control (CDC) Podcasts

    2014-05-30

    Reginald Tucker reads an abridged version of the EID perspective Bat Flight and Zoonotic Viruses.  Created: 5/30/2014 by National Center for Emerging and Zoonotic Infectious Diseases (NCEZID).   Date Released: 6/2/2014.

  14. Centennial of Flight Educational Outreach

    Science.gov (United States)

    McCarthy, Marianne (Technical Monitor); Miller, Susan (Technical Monitor); Vanderpool, Celia

    2003-01-01

    The Centennial of Flight Education Outreach project worked with community partners to disseminate NASA Education materials and the Centennial of Flight CD-ROM as a vehicle to increase national awareness of NASA's Aerospace Education products, services and programs. The Azimuth Education Foundation and the Ninety Nines, an International Women Pilots Association, Inc. were chartered to conduct education outreach to the formal and informal educational community. The Dryden Education Office supported the development of a training and information distribution program that established a national group of prepared Centennial of Flight Ambassadors, with a mission of community education outreach. These Ambassadors are members of the Ninety Nines and through the Azimuth Foundation, they assisted the AECC on the national level to promote and disseminate Centennial of Flight and other educational products. Our objectives were to explore partnership outreach growth opportunities with consortium efforts between organizations. This project directly responded to the highlights of NASA s Implementation Plan for Education. It was structured to network, involve the community, and provide a solid link to active educators and current students with NASA education information. Licensed female pilots who live and work in local communities across the nation carried the link. This partnership has been extremely gratifying to all of those Ninety-Nines involved, and they eagerly look forward to further work opportunities.

  15. Aerodynamic Simulation of Indoor Flight

    Science.gov (United States)

    De Leon, Nelson; De Leon, Matthew N.

    2007-01-01

    We develop a two-dimensional flight simulator for lightweight (less than 10 g) indoor planes. The simulator consists of four coupled time differential equations describing the plane CG, plane pitch and motor. The equations are integrated numerically with appropriate parameters and initial conditions for two planes: (1) Science Olympiad and (2)…

  16. Determinants of skilled birth attendants for delivery in Nepal.

    Science.gov (United States)

    Baral, Y R; Lyons, K; Skinner, J; van Teijlingen, E R

    2010-01-01

    This review is to explore the factors affecting the uptake of skilled birth attendants for delivery and the issues associated with women's role and choices of maternal health care service for delivery in Nepal. Literature was reviewed across the globe and discussed in a Nepalese context. Delivery by Skilled Birth Attendance serves as an indicator of progress towards reducing maternal mortality worldwide, the fifth Millennium Development Goal. Nepal has committed to reducing its maternal mortality by 75% by 2015 through ensuring accessibility to the availability and utilisation of skilled care at every birth. The literature suggests that several socio-economic, cultural and religious factors play a significant role in the use of Skilled Birth Attendance for delivery in Nepal. Availability of transportation and distance to the health facility; poor infrastructure and lack of services; availability and accessibility of the services; cost and convenience; staff shortages and attitudes; gender inequality; status of women in society; women's involvement in decision making; and women's autonomy and place of residence are significant contributing factors for uptake of Skilled Birth Attendance for delivery in Nepal. The review found more quantitative research studies exploring the determinants of utilisation of the maternal health services during pregnancy in Nepal than qualitative studies. Findings of quantitative research show that different social demographic, economic, socio-cultural and religious factors are responsible for the utilisation of maternal health services but very few studies discussed how and why these factors are responsible for utilisation of skilled birth attendants in pregnancy. It is suggested that there is need for more qualitative research to explore the women's role and choice regarding use of skilled birth attendants services and to find out how and why these factors are responsible for utilisation of skilled birth attendants for delivery

  17. Number needed to eat: pizza and resident conference attendance.

    Science.gov (United States)

    Cosimini, Michael J; Mackintosh, Liza; Chang, Todd P

    2016-12-01

    The didactic conference is a common part of the resident education curriculum. Given the demands of clinical responsibilities and restrictions on duty hours, maximising education is a challenge faced by all residency programmes. To date, little research exists with respect to how the provision of complimentary food affects physician and resident conference attendance. The objective of this study was to determine whether complimentary food improves resident arrival times and attendance at educational conferences and, furthermore, to test whether this provision is a potentially cost-effective tool for improving education. A retrospective review of 36 resident educational Friday noon conferences, including 1043 resident arrivals, was performed. Data were analysed for total attendance, arrival times, number needed to eat (NNE) and the percentage of residents arriving on time, and compared between days on which food was and was not provided. Median attendance was 3.7% higher (p = 0.04) on days on which food was provided, at a cost of US$46 for each additional resident in attendance. Arrival times were also statistically significantly improved when food was provided, with a median improvement of 0.7 minutes (p = 0.02) and an 11.0% increase in on-time arrivals (p < 0.001). The NNE was 10.6. Complimentary food improves both attendance and arrival times by a small, but statistically significant, degree. The provision of complimentary food can be considered as an incentive for attendance and on-time arrival at didactic educational sessions, although more cost-effective modalities may exist. © 2016 John Wiley & Sons Ltd and The Association for the Study of Medical Education.

  18. Mobile Attendance Checking System on Android Platform for Kazakhstani University

    Science.gov (United States)

    Saparkhojayev, N.; Shakhov, E.; Mailybayev, Y.

    2016-04-01

    In the 21st century-the century of Information Technology, it is difficult to imagine life without any gadgets: phones, tablets, computers, laptops, and so on. Today, smartphones and tablets are becoming popular, and thus their operating systems become popular too. Android is designed for low-power devices that run on battery power at full capacity, using all of its services, such as cameras, lights, GPS navigation, Wi-Fi, etc. In Kazakhstani universities, the process of checking students’ attendance is one of the important issues, because final grade evaluation of students is based on their total number of appearances and their grades during the whole semester. This raises the question of having some tool to control students’ attendance. There are many possible ways of controlling attendance: there are many examples when universities prefer to control attendance by the use of paper sheet, and some universities prefer to use two-stage way of controlling attendance: firstly, teachers and professors use paper sheet for checking students’ attendance and after this, they fill out these information into a system manually. However, this is not an efficient way since there will be spent much of time for calling students names and putting marks like “presence” or “absence” if the class is a lecture class, and in this class at least 5 groups are presented. Furthermore, some students may call his/her friend as “presence” nevertheless to the fact that this student is currently absent. After taking into consideration all these issues and the fact that many gadgets use Android platform, authors of the following research paper decided to create a mobile system that makes easier to check students’ attendance automatically, and this system is implemented in Almaty Management University, Kazakhstan. The system is based on Android platform, and in this paper, details of this system are presented.

  19. In-Flight Sleep of Flight Crew During a 7-hour Rest Break: Implications for Research and Flight Safety

    Science.gov (United States)

    Signal, T. Leigh; Gander, Philippa H.; van den Berg, Margo J.; Graeber, R. Curtis

    2013-01-01

    Study Objectives: To assess the amount and quality of sleep that flight crew are able to obtain during flight, and identify factors that influence the sleep obtained. Design: Flight crew operating flights between Everett, WA, USA and Asia had their sleep recorded polysomnographically for 1 night in a layover hotel and during a 7-h in-flight rest opportunity on flights averaging 15.7 h. Setting: Layover hotel and in-flight crew rest facilities onboard the Boeing 777-200ER aircraft. Participants: Twenty-one male flight crew (11 Captains, mean age 48 yr and 10 First Officers, mean age 35 yr). Interventions: N/A. Measurements and Results: Sleep was recorded using actigraphy during the entire tour of duty, and polysomnographically in a layover hotel and during the flight. Mixed model analysis of covariance was used to determine the factors affecting in-flight sleep. In-flight sleep was less efficient (70% vs. 88%), with more nonrapid eye movement Stage 1/Stage 2 and more frequent awakenings per h (7.7/h vs. 4.6/h) than sleep in the layover hotel. In-flight sleep included very little slow wave sleep (median 0.5%). Less time was spent trying to sleep and less sleep was obtained when sleep opportunities occurred during the first half of the flight. Multivariate analyses suggest age is the most consistent factor affecting in-flight sleep duration and quality. Conclusions: This study confirms that even during long sleep opportunities, in-flight sleep is of poorer quality than sleep on the ground. With longer flight times, the quality and recuperative value of in-flight sleep is increasingly important for flight safety. Because the age limit for flight crew is being challenged, the consequences of age adversely affecting sleep quantity and quality need to be evaluated. Citation: Signal TL; Gander PH; van den Berg MJ; Graeber RC. In-flight sleep of flight crew during a 7-hour rest break: implications for research and flight safety. SLEEP 2013;36(1):109–115. PMID:23288977

  20. Altitude exposures during commercial flight: a reappraisal.

    Science.gov (United States)

    Hampson, Neil B; Kregenow, David A; Mahoney, Anne M; Kirtland, Steven H; Horan, Kathleen L; Holm, James R; Gerbino, Anthony J

    2013-01-01

    Hypobaric hypoxia during commercial air travel has the potential to cause or worsen hypoxemia in individuals with pre-existing cardiopulmonary compromise. Knowledge of cabin altitude pressures aboard contemporary flights is essential to counseling patients accurately about flying safety. The objective of the study was to measure peak cabin altitudes during U.S. domestic commercial flights on a variety of aircraft. A handheld mountaineering altimeter was carried by the investigators in the plane cabin during commercial air travel and peak cabin altitude measured. The values were then compared between aircraft models, aircraft classes, and distances flown. The average peak cabin altitude on 207 flights aboard 17 different aircraft was 6341 +/- 1813 ft (1933 m +/- 553 m), significantly higher than when measured in a similar fashion in 1988. Peak cabin altitude was significantly higher for flights longer than 750 mi (7085 +/- 801 ft) compared to shorter flights (5160 +/- 2290 ft/1573 +/- 698 m). Cabin altitude increased linearly with flight distance for flights up to 750 mi in length, but was independent of flight distance for flights exceeding 750 mi. Peak cabin altitude was less than 5000 ft (1524 m) in 70% of flights shorter than 500 mi. Peak cabin altitudes greater than 8000 ft (2438 m) were measured on approximately 10% of the total flights. Peak cabin altitude on commercial aircraft flights has risen over time. Cabin altitude is lower with flights of shorter distance. Physicians should take these factors into account when determining an individual's need for supplemental oxygen during commercial air travel.

  1. 76 FR 26949 - Special Conditions: Boeing Model 747-8 Series Airplanes; Overhead Flight Attendant Rest Compartment

    Science.gov (United States)

    2011-05-10

    .... A means to fight a fire must be provided. This can be either a built-in extinguishing system or... entering the OFAR compartment through the vestibule to fight a fire will examine the vestibule and the... occupant's first action should be to leave the confined space, unless the occupant(s) is fighting the fire...

  2. 76 FR 44246 - Special Conditions: Boeing Model 747-8 Series Airplanes; Overhead Flight Attendant Rest Compartment

    Science.gov (United States)

    2011-07-25

    ... sole means to fight a fire or to supplement a built-in extinguishing system of limited suppression... the vestibule to fight a fire will examine the vestibule and the lavatory areas for the source of the... occupant's first action should be to leave the confined space, unless the occupant(s) is fighting the fire...

  3. Radio Frequency Identification (RFID) Based Employee Attendance Management System

    Science.gov (United States)

    Maramis, G. D. P.; Rompas, P. T. D.

    2018-02-01

    Manually recorded attendance of all the employees has produced some problems such as the data accuracy and staff performance efficiency. The objective of this research is to design and develop a software of RFID attendance system which is integrated with database system. This RFID attendance system was developed using several main components such as tags that will be used as a replacement of ID cards and a reader device that will read the information related to the employee attendance. The result of this project is a software of RFID attendance system that is integrated with the database and has a function to store the data or information of every single employee. This system has a maximum reading range of 2 cm with success probability of 1 and requires a minimum interval between readings of 2 seconds in order to achieve an optimal functionality. By using the system, the discipline attitude of the employees and also the performance of the staff will be improved instantly.

  4. Inequalities in Dental Attendance throughout the Life-course

    Science.gov (United States)

    2012-01-01

    The purpose of this study was to identify socio-economic inequalities in regular dental attendance throughout the life-course. The analyses relied on data from SHARE (waves 1 to 3 of the Survey of Health, Ageing, and Retirement in Europe), which includes retrospective information on life-course dental attendance of 26,525 persons currently aged 50 years or greater from 13 European countries (Austria, Poland, Spain, Italy, the Netherlands, Belgium, Greece, the Czech Republic, France, Denmark, Switzerland, Germany, and Sweden). Inequalities in dental attendance were assessed by means of Concentration Indices. Socio-economic disparities in regular dental attendance were identified as early as childhood. Moreover, higher educational attainment resulted in increased probabilities of regular dental attendance throughout subsequent life-years in all nations. In most countries, inequality levels remained relatively inelastic throughout the life-course. These findings suggest that a considerable proportion of inequalities in dental care use is already established at childhood and persists throughout the life-course. PMID:22699676

  5. Predicting Scheduling and Attending for an Oral Cancer Examination

    Science.gov (United States)

    Shepperd, James A.; Emanuel, Amber S.; Howell, Jennifer L.; Logan, Henrietta L.

    2015-01-01

    Background Oral and pharyngeal cancer is highly treatable if diagnosed early, yet late diagnosis is commonplace apparently because of delays in undergoing an oral cancer examination. Purpose We explored predictors of scheduling and attending an oral cancer examination among a sample of Black and White men who were at high risk for oral cancer because they smoked. Methods During an in-person interview, participants (N = 315) from rural Florida learned about oral and pharyngeal cancer, completed survey measures, and were offered a free examination in the next week. Later, participants received a follow-up phone call to explore why they did or did not attend their examination. Results Consistent with the notion that scheduling and attending an oral cancer exam represent distinct decisions, we found that the two outcomes had different predictors. Defensive avoidance and exam efficacy predicted scheduling an examination; exam efficacy and having coping resources, time, and transportation predicted attending the examination. Open-ended responses revealed that the dominant reasons participants offered for missing a scheduled examination was conflicting obligations, forgetting, and confusion or misunderstanding about the examination. Conclusions The results suggest interventions to increase scheduling and attending an oral cancer examination. PMID:26152644

  6. Exploring the school attendance of children with epilepsy

    Directory of Open Access Journals (Sweden)

    Karina Piccin Zanni

    2009-12-01

    Full Text Available The childhood epilepsy is a chronic disease that can have an impact in various spheres of life of the child, including academic performance and school attendance. This study aimed to describe and compare the school attendance of children with epilepsy who attend mainstream and special schools. Participants were 56 children aged between 7 and 14 years who attended regular or special schools located in two Brazilian cities of medium size. To collect the information we used two instruments: Data sheet of identification and characterization of the child and Data sheet to record the attendance school. The results showed that children in special schools had higher rates of absenteeism compared to students in regular schools. Additionally, we observed that these children use more drugs and have implications on health more severe than children in regular schools. Thus, it is the childhood epilepsy as a disease complex that brings substantial effects on various areas of children’s lives by reinforcing the need for studies that might expand the knowledge to and the experiences associated with the education of these children.

  7. Online Learning Flight Control for Intelligent Flight Control Systems (IFCS)

    Science.gov (United States)

    Niewoehner, Kevin R.; Carter, John (Technical Monitor)

    2001-01-01

    The research accomplishments for the cooperative agreement 'Online Learning Flight Control for Intelligent Flight Control Systems (IFCS)' include the following: (1) previous IFC program data collection and analysis; (2) IFC program support site (configured IFC systems support network, configured Tornado/VxWorks OS development system, made Configuration and Documentation Management Systems Internet accessible); (3) Airborne Research Test Systems (ARTS) II Hardware (developed hardware requirements specification, developing environmental testing requirements, hardware design, and hardware design development); (4) ARTS II software development laboratory unit (procurement of lab style hardware, configured lab style hardware, and designed interface module equivalent to ARTS II faceplate); (5) program support documentation (developed software development plan, configuration management plan, and software verification and validation plan); (6) LWR algorithm analysis (performed timing and profiling on algorithm); (7) pre-trained neural network analysis; (8) Dynamic Cell Structures (DCS) Neural Network Analysis (performing timing and profiling on algorithm); and (9) conducted technical interchange and quarterly meetings to define IFC research goals.

  8. Flight to Safety from European Stock Markets

    DEFF Research Database (Denmark)

    Aslanidis, Nektarios; Christiansen, Charlotte

    -return trade-off is positive and during flight-to-safety episodes it is negative. The effects of flight-to-safety episodes on the risk-return trade-off are qualitatively similar for own country flight-to-safety episodes, for flight from own country stock market to the US bond market, and for US flight......This paper investigates flight-to-safety from stocks to bonds in seven European markets. We use quantile regressions to identify flight-to-safety episodes. The simple risk-return trade-off on the stock markets is negative which is caused by flight-to-safety episodes: During normal periods, the risk...

  9. Post-Flight Data Analysis Tool

    Science.gov (United States)

    George, Marina

    2018-01-01

    A software tool that facilitates the retrieval and analysis of post-flight data. This allows our team and other teams to effectively and efficiently analyze and evaluate post-flight data in order to certify commercial providers.

  10. Optimized Lift for Autonomous Formation Flight

    Data.gov (United States)

    National Aeronautics and Space Administration — Experimental in-flight evaluations have demonstrated that the concept of formation flight can reduce fuel consumption of trailing aircraft by 10 percent. Armstrong...

  11. GRIP FLIGHT TRACKS AND ANIMATIONS V1

    Data.gov (United States)

    National Aeronautics and Space Administration — The GRIP Flight Tracks and Animations dataset includes both KML files and animation files. The KML files use Google Earth to show the flight tracks on a map. The...

  12. F-15 IFCS Intelligent Flight Control System

    Science.gov (United States)

    Bosworth, John T.

    2008-01-01

    This viewgraph presentation gives a detailed description of the F-15 aircraft, flight tests, aircraft performance and overall advanced neural network based flight control technologies for aerospace systems designs.

  13. Flight Activity and Crew Tracking System -

    Data.gov (United States)

    Department of Transportation — The Flight Activity and Crew Tracking System (FACTS) is a Web-based application that provides an overall management and tracking tool of FAA Airmen performing Flight...

  14. Core Flight System Satellite Starter Kit

    Data.gov (United States)

    National Aeronautics and Space Administration — The Core Flight System Satellite Starter Kit (cFS Kit) will allow a small satellite or CubeSat developer to rapidly develop, deploy, test, and operate flight...

  15. Positive Exchange of Flight Controls Program

    Science.gov (United States)

    1995-03-10

    This advisory circular provides guidance for all pilots, especially student pilots, flight instructors, and pilot examiners, on the recommended procedure to use for the positive exchange of flight controls between pilots when operating an aircraft.

  16. Free Flight Rotorcraft Flight Test Vehicle Technology Development

    Science.gov (United States)

    Hodges, W. Todd; Walker, Gregory W.

    1994-01-01

    A rotary wing, unmanned air vehicle (UAV) is being developed as a research tool at the NASA Langley Research Center by the U.S. Army and NASA. This development program is intended to provide the rotorcraft research community an intermediate step between rotorcraft wind tunnel testing and full scale manned flight testing. The technologies under development for this vehicle are: adaptive electronic flight control systems incorporating artificial intelligence (AI) techniques, small-light weight sophisticated sensors, advanced telepresence-telerobotics systems and rotary wing UAV operational procedures. This paper briefly describes the system's requirements and the techniques used to integrate the various technologies to meet these requirements. The paper also discusses the status of the development effort. In addition to the original aeromechanics research mission, the technology development effort has generated a great deal of interest in the UAV community for related spin-off applications, as briefly described at the end of the paper. In some cases the technologies under development in the free flight program are critical to the ability to perform some applications.

  17. The dynamics of parabolic flight: Flight characteristics and passenger percepts

    Science.gov (United States)

    Karmali, Faisal; Shelhamer, Mark

    2008-09-01

    Flying a parabolic trajectory in an aircraft is one of the few ways to create freefall on Earth, which is important for astronaut training and scientific research. Here we review the physics underlying parabolic flight, explain the resulting flight dynamics, and describe several counterintuitive findings, which we corroborate using experimental data. Typically, the aircraft flies parabolic arcs that produce approximately 25 s of freefall (0 g) followed by 40 s of enhanced force (1.8 g), repeated 30-60 times. Although passengers perceive gravity to be zero, in actuality acceleration, and not gravity, has changed, and thus we caution against the terms "microgravity" and "zero gravity." Despite the aircraft trajectory including large (45°) pitch-up and pitch-down attitudes, the occupants experience a net force perpendicular to the floor of the aircraft. This is because the aircraft generates appropriate lift and thrust to produce the desired vertical and longitudinal accelerations, respectively, although we measured moderate (0.2 g) aft-ward accelerations during certain parts of these trajectories. Aircraft pitch rotation (average 3°/s) is barely detectable by the vestibular system, but could influence some physics experiments. Investigators should consider such details in the planning, analysis, and interpretation of parabolic-flight experiments.

  18. Migrant Home Attendants: Regulation and Practice in 7 Countries

    Science.gov (United States)

    Garms-Homolová, Vjenka; Bentwich, Miriam

    2013-01-01

    We compared regulation and working and living conditions of foreign home attendants in 7 countries (Canada, Germany, Israel, Singapore, Spain, United Kingdom, United States). We conducted a literature search in the PSYCinfo, MEDLINE, and Google Scholar databases for 2002 to 2012. We found substantial between-country differences in the legal status of migrant caregivers and regulations regarding working and living conditions and drew 3 conclusions. Improving regulations will likely improve not only the well-being of foreign home attendants but also the care they provide. Countries in which many foreign home attendants work without specific legal entry programs should rethink their policies. Finally, requiring an employer’s recommendation to obtain permanent residency may constrain foreign workers from registering complaints or leaving suboptimal employment situations. PMID:24134377

  19. Social capital and frequent attenders in general practice

    DEFF Research Database (Denmark)

    Pasgaard, Alexander A.; Mæhlisen, Maiken H.; Overgaard, Charlotte

    2018-01-01

    weeks. RESULTS: Using multiple logistic regression, we found that frequent attendance was associated with a lower score in interpersonal trust [OR 0.86 (0.79-0.94)] and social network [OR 0.88 (0.79-0.98)] for women, when adjusted for age, education, income and SF12 health scores. Norms of reciprocity...... at the individual level, and includes cognitive (interpersonal trust and norms of reciprocity) as well as structural (social network and civic engagement) dimensions. Frequent attendance is defined as the upper-quartile of the total number of measured consultations with a general practitioner over a period of 148...... and civic engagement were not significantly associated with frequent attendance for women [OR 1.05 (0.99-1.11) and OR 1.01 (0.92-1.11) respectively]. None of the associations were statistically significant for men. CONCLUSION: This study suggests that for women, some aspects of social capital are associated...

  20. Social environment and frequent attendance in Danish general practice

    DEFF Research Database (Denmark)

    Vedsted, Peter; Olesen, Frede

    2005-01-01

    inequalities in health or whether social factors in themselves determine the use of general practice. AIM: To examine if social factors are associated with frequent attendance in general practice after adjusting for physical and psychological health variables. DESIGN OF STUDY: Population-based cross......BACKGROUND: A lack of social support is associated with increased morbidity and mortality and a decreased effect of prevention. Frequent attenders to primary care are characterised by poorer social conditions than other patients in general practice, but we do not know whether this is due to social...... during the period November 1997-October 1998. A questionnaire about physical, psychological and social factors was sent to the patients. The associations between social factors and frequent attendance were adjusted for physical and psychological health and tendency towards somatisation. RESULTS: A total...

  1. 14 CFR 415.115 - Flight safety.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Flight safety. 415.115 Section 415.115... TRANSPORTATION LICENSING LAUNCH LICENSE Safety Review and Approval for Launch of an Expendable Launch Vehicle From a Non-Federal Launch Site § 415.115 Flight safety. (a) Flight safety analysis. An applicant's...

  2. 14 CFR 417.107 - Flight safety.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Flight safety. 417.107 Section 417.107... TRANSPORTATION LICENSING LAUNCH SAFETY Launch Safety Responsibilities § 417.107 Flight safety. (a) Flight safety... safety system that satisfies subpart D of this part as follows, unless § 417.125 applies. (1) In the...

  3. 14 CFR 121.387 - Flight engineer.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Flight engineer. 121.387 Section 121.387..., FLAG, AND SUPPLEMENTAL OPERATIONS Airman and Crewmember Requirements § 121.387 Flight engineer. No... holding a current flight engineer certificate. For each airplane type certificated after January 1, 1964...

  4. Weather and Tourism: Thermal Comfort and Zoological Park Visitor Attendance

    Directory of Open Access Journals (Sweden)

    David R. Perkins

    2016-03-01

    Full Text Available Weather events have the potential to greatly impact business operations and profitability, especially in outdoor-oriented economic sectors such as Tourism, Recreation, and Leisure (TRL. Although a substantive body of work focuses on the macroscale impacts of climate change, less is known about how daily weather events influence attendance decisions, particularly relating to the physiological thermal comfort levels of each visitor. To address this imbalance, this paper focuses on ambient thermal environments and visitor behavior at the Phoenix and Atlanta zoos. Daily visitor attendances at each zoo from September 2001 to June 2011, were paired with the Physiologically Equivalent Temperature (PET to help measure the thermal conditions most likely experienced by zoo visitors. PET was calculated using hourly atmospheric variables of temperature, humidity, wind speed, and cloud cover from 7 a.m. to 7 p.m. at each zoological park location and then classified based on thermal comfort categories established by the American Society of Heating and Air Conditioning Engineers (ASHRAE. The major findings suggested that in both Phoenix and Atlanta, optimal thermal regimes for peak attendance occurred within “slightly warm” and “warm” PET-based thermal categories. Additionally, visitors seemed to be averse to the most commonly occurring thermal extreme since visitors appeared to avoid the zoo on excessively hot days in Phoenix and excessively cold days in Atlanta. Finally, changes in the daily weather impacted visitor attendance as both zoos experienced peak attendance on days with dynamic changes in the thermal regimes and depressed attendances on days with stagnant thermal regimes. Building a better understanding of how weather events impact visitor demand can help improve our assessments of the potential impacts future climate change may have on tourism.

  5. Attendroid : An Android Application in Attendance Management System

    Directory of Open Access Journals (Sweden)

    Lorissa Joana E. Buenas

    2015-11-01

    Full Text Available This research involves an android application in attendance management system. The study sought to provide an alternative solution to the increasing demand for time management in the College of Engineering and Computing Sciences in Batangas State University ARASOF. Through the said Android application the attendance checking will be much easier, for it will reduce the roll call that takes a lot of time. It was developed to help the lecturers have sufficient time for teaching and the students for learning. The researchers used research design, development process, and programming procedures in their study. The “Attendroid”, was designed and develop using Eclipse, Java Script, Php and HTML. This application is for android phones and tablet which has portable hotspot. The android application for the students will run on 2.2versions of android and higher. The android application has gone through an evaluation to test whether the system is acceptable in terms of security, accuracy, reliability, maintainability and user-friendliness against the manual checking of attendance. The result shows that the respondents are more favorable in the Attendroid because it can be gleaned that they gave an excellent feedback to the application compared to the manual process of attendance checking. After thorough study of the old ways of attendance checking against the newly developed application, a necessity to improve the manual checking was observed, and therefore, strengthen the advantages of implementing Attendroid. Based on the result of the proposed users’ acceptability, Attendroid could become the formal attendance checking system of the College of Engineering and Computing Sciences.

  6. Comparison of Complications and Surgical Outcomes of Adolescent Idiopathic Scoliosis Between Junior Attending Surgeons and Senior Attending Surgeons.

    Science.gov (United States)

    Qiao, Jun; Xiao, Lingyan; Xu, Leilei; Shi, Benlong; Qian, Bangping; Zhu, Zezhang; Qiu, Yong

    2018-04-24

    To our knowledge, few studies have compared complications and surgical outcomes of adolescent idiopathic scoliosis (AIS) between junior attending surgeons and senior attending surgeons. To compare surgical strategies, complications, and outcomes of posterior corrective surgery for AIS between junior attending surgeons and senior attending surgeons. According to experience level of operation surgeons, the patients were assigned to 2 groups. Group A was the "junior surgeon" group. Group B was the "senior surgeon" group. The following parameters were compared between the 2 groups: age, sex, diagnosis, hospital of record, surgeon experience level, type of instrumentation, type of screws, estimated blood loss, duration of surgery, length of fusion, correction techniques, main curve correction, and thoracic kyphosis correction. A total of 132 patients with AIS were included in group A, whereas 207 were in group B. The translational technique was used more often in group A (P Senior surgeons used more monoaxial screws than junior surgeons (P senior group (P senior group had significant better correction rates of severe main curve (>70°) and thoracic kyphosis than the junior group (P Senior attending surgeons outperformed junior surgeons in blood loss control, thoracic kyphosis correction, and correction of severe curves. Copyright © 2018 Elsevier Inc. All rights reserved.

  7. Radiation investigations during space flight

    International Nuclear Information System (INIS)

    Akatov, A.Yu.; Nevzgodina, L.V.; Sakovich, V.A.; Fekher, I.; Deme, Sh.; Khashchegan, D.

    1986-01-01

    Results of radiation investigations during ''Salyut-6'' orbital station flight are presented. The program of studying the environmental radioactivity at the station included ''Integral'' and ''Pille'' experiments. In the course of the ''Integral'' experiment absorbed dose distributions of cosmic radiation and heavy charged particle fluence for long time intervals were studied. Method, allowing one to study dose distributions and determine individual doses for any time interval rapidity and directly on board the station was tested in the course of ''Pille'' experiment for the first time. Attention is paid to measuring equipment. Effect of heavy charged particles on the cellular structure of air-dry Lactuca sativa lettuce seeds was studied in the course of radiobiological experiments conducted at ''Salyut-6'' station. It is shown, that with the increase of flight duration the frequency of cells with chromosomal aberrations increases

  8. Time-of-flight spectrometers

    International Nuclear Information System (INIS)

    Carrico, J.P.

    1976-01-01

    The flight time of an ion in an inhomogeneous, oscillatory electric field (IOFE) is an m/e-dependent property of this field and is independent of the initial position and velocity. The d.c. component of the equation of motion for an ion in the IOFE describes a harmonic oscillation of constant period. When ions oscillate for many periods with one species overtaking another the motion may no longer be truly periodic although the resulting period or 'quasi-period' still remains independent of the initial conditions. This period or 'quasi-period' is used in the time-of-flight mass spectrometer described. The principle of operation is also described and both analytical and experimental results are reported. (B.D.)

  9. ALICE Time of Flight Module

    CERN Multimedia

    The Time-Of-Flight system of ALICE consists of 90 such modules, each containing 15 or 19 Multigap Resistive Plate Chamber (MRPC) strips. This detector is used for identification of charged particles. It measures with high precision (50 ps) the time of flight of charged particles and therefore their velocity. The curvature of the particle trajectory inside the magnetic field gives the momentum, thus the particle mass is calculated and the particle is identified The MRPC is a stack of resistive glass plates, separated from each other by nylon fishing line. The mass production of the chambers (~1600, covering a surface of 150 m2) was done at INFN Bologna, while the first prototypes were bult at CERN.

  10. CFD applications in hypersonic flight

    Science.gov (United States)

    Edwards, T. A.

    1992-01-01

    Design studies are underway for a variety of hypersonic flight vehicles. The National Aero-Space Plane will provide a reusable, single-stage-to-orbit capability for routine access to low earth orbit. Flight-capable satellites will dip into the atmosphere to maneuver to new orbits, while planetary probes will decelerate at their destination by atmospheric aerobraking. To supplement limited experimental capabilities in the hypersonic regime, CFD is being used to analyze the flow about these configurations. The governing equations include fluid dynamic as well as chemical species equations, which are solved with robust upwind differencing schemes. Examples of CFD applications to hypersonic vehicles suggest an important role this technology will play in the development of future aerospace systems. The computational resources needed to obtain solutions are large, but various strategies are being exploited to reduce the time required for complete vehicle simulations.

  11. Flight test trajectory control analysis

    Science.gov (United States)

    Walker, R.; Gupta, N.

    1983-01-01

    Recent extensions to optimal control theory applied to meaningful linear models with sufficiently flexible software tools provide powerful techniques for designing flight test trajectory controllers (FTTCs). This report describes the principal steps for systematic development of flight trajectory controllers, which can be summarized as planning, modeling, designing, and validating a trajectory controller. The techniques have been kept as general as possible and should apply to a wide range of problems where quantities must be computed and displayed to a pilot to improve pilot effectiveness and to reduce workload and fatigue. To illustrate the approach, a detailed trajectory guidance law is developed and demonstrated for the F-15 aircraft flying the zoom-and-pushover maneuver.

  12. Market size and attendance in English Premier League football

    OpenAIRE

    Buraimo, B; Simmons, R

    2006-01-01

    This paper models the impacts of market size and team competition for fan base on matchday attendance in the English Premier League over the period 1997-2004 using a large panel data set. We construct a comprehensive set of control variables and use tobit estimation to overcome the problems caused by sell-out crowds. We also account for unobserved influences on attendance by means of random effects attached to home teams. Our treatment of market size, with its use of Geographical Information ...

  13. Child Labour or School Attendance? Evidence from Zambia

    DEFF Research Database (Denmark)

    Jensen, Peter; Nielsen, Helena Skyt

    1996-01-01

    In this paper, we investigate what affects school attendance and child labour in an LDC, using data for Zambia. Since the data come from a household survey with information on all household members, it allows us to take account of unobserved household effects by introducing household specific...... effects in a logit model. The empirical analysis suggests that both economic and sociological variables are important determinants for the choice between school attendance and child labour. In particular, we find some support for the hypothesis that poverty forces households to keep their children away...

  14. 14 CFR 23.865 - Fire protection of flight controls, engine mounts, and other flight structure.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Fire protection of flight controls, engine... controls, engine mounts, and other flight structure. Flight controls, engine mounts, and other flight... they are capable of withstanding the effects of a fire. Engine vibration isolators must incorporate...

  15. 14 CFR 121.412 - Qualifications: Flight instructors (airplane) and flight instructors (simulator).

    Science.gov (United States)

    2010-01-01

    ... (airplane) and flight instructors (simulator). 121.412 Section 121.412 Aeronautics and Space FEDERAL... OPERATIONS Training Program § 121.412 Qualifications: Flight instructors (airplane) and flight instructors (simulator). (a) For the purposes of this section and § 121.414: (1) A flight instructor (airplane) is a...

  16. X-1A in flight with flight data superimposed

    Science.gov (United States)

    1953-01-01

    This photo of the X-1A includes graphs of the flight data from Maj. Charles E. Yeager's Mach 2.44 flight on December 12, 1953. (This was only a few days short of the 50th anniversary of the Wright brothers' first powered flight.) After reaching Mach 2.44, then the highest speed ever reached by a piloted aircraft, the X-1A tumbled completely out of control. The motions were so violent that Yeager cracked the plastic canopy with his helmet. He finally recovered from a inverted spin and landed on Rogers Dry Lakebed. Among the data shown are Mach number and altitude (the two top graphs). The speed and altitude changes due to the tumble are visible as jagged lines. The third graph from the bottom shows the G-forces on the airplane. During the tumble, these twice reached 8 Gs or 8 times the normal pull of gravity at sea level. (At these G forces, a 200-pound human would, in effect, weigh 1,600 pounds if a scale were placed under him in the direction of the force vector.) Producing these graphs was a slow, difficult process. The raw data from on-board instrumentation recorded on oscillograph film. Human computers then reduced the data and recorded it on data sheets, correcting for such factors as temperature and instrument errors. They used adding machines or slide rules for their calculations, pocket calculators being 20 years in the future. Three second generation Bell Aircraft Corporations X-1s were built, though four were requested. They were the X-1A (48-1384); X-1B (48-1385); X-1C (canceled and never built); X-1D (48-1386). These aircraft were similar to the X-1s, except they were five feet longer, had conventional canopies, and were powered by Reaction Motors, Inc. XLR11-RM-5 rocket engines. The RM-5, like the previous engines, had no throttle and was controlled by igniting one or more of the four thrust chambers at will. The original program outline called for the X-1A and X-1B to be used for dynamic stability and air loads investigations. The X-1D was to be used

  17. STS 63: Post flight presentation

    Science.gov (United States)

    1995-02-01

    At a post flight conference, Captain Jim Wetherbee, of STS Flight 63, introduces each of the other members of the STS 63 crew (Eileen Collins, Pilot; Dr. Bernard Harris, Payload Commander; Dr. Michael Foale, Mission Specialist from England; Dr. Janice Voss, Mission Specialist; and Colonel Vladimir Titor, Mission Specialist from Russia), gave a short autobiography of each member and a brief description of their assignment during this mission. A film was shown that included the preflight suit-up, a view of the launch site, the actual night launch, a tour of the Space Shuttle and several of the experiment areas, several views of earth and the MIR Space Station and cosmonauts, the MlR-Space Shuttle rendezvous, the deployment of the Spartan Ultraviolet Telescope, Foale and Harris's EVA and space walk, the retrieval of Spartan, and the night entry home, including the landing. Several spaceborne experiments were introduced: the radiation monitoring experiment, environment monitoring experiment, solid surface combustion experiment, and protein crystal growth and plant growth experiments. This conference ended with still, color pictures, taken by the astronauts during the entire STS 63 flight, being shown.

  18. Aviator's Fluid Balance During Military Flight.

    Science.gov (United States)

    Levkovsky, Anna; Abot-Barkan, Sivan; Chapnik, Leah; Doron, Omer; Levy, Yuval; Heled, Yuval; Gordon, Barak

    2018-02-01

    A loss of 1% or more of bodyweight due to dehydration has a negative effect on cognitive performance, which could critically affect flight safety. There is no mention in the literature concerning the amounts of military pilots' fluid loss during flight. The aim of this study was to quantify fluid loss of pilots during military flight. There were 48 aviators (mean age 23.9) from the Israeli Air Force who participated in the study, which included 104 training flights in various flight platforms. Bodyweight, urine specific gravity, and environmental heat strain were measured before and after each flight. Fluid loss was calculated as the weight differences before and after the flight. We used a univariate and one-way ANOVA to analyze the effect of different variables on the fluid loss. The mean fluid loss rate was 462 ml · h-1. The results varied among different aircraft platforms and depended on flight duration. Blackhawk pilots lost the highest amount of fluids per flight, albeit had longer flights (mean 108 min compared to 35.5 in fighter jets). Jet fighter pilots had the highest rate of fluid loss per hour of flight (up to 692 ml, extrapolated). Overall, at 11 flights (11%) aircrew completed their flight with a meaningful fluid loss. We conclude that military flights may be associated with significant amount of fluid loss among aircrew.Levkovsky A, Abot-Barkan S, Chapnik L, Doron O, Levy Y, Heled Y, Gordon B. Aviator's fluid balance during military flight. Aerosp Med Hum Perform. 2018; 89(2):9498.

  19. Two Polarities of Attention in Social Contexts: From Attending-to-Others to Attending-to-Self.

    Science.gov (United States)

    Kuang, Shenbing

    2016-01-01

    Social attention is one special form of attention that involves the allocation of limited processing resources in a social context. Previous studies on social attention often regard how attention is directed toward socially relevant stimuli such as faces and gaze directions of other individuals. In contrast to attending-to-others, a different line of researches has shown that self-related information such as own face and name automatically captures attention and is preferentially processed comparing to other-related information. These contrasting behavioral effects between attending-to-others and attending-to-self prompt me to consider a synthetic viewpoint for understanding social attention. I propose that social attention operates at two polarizing states: In one extreme, individual tends to attend to the self and prioritize self-related information over others', and, in the other extreme, attention is allocated to other individuals to infer their intentions and desires. Attending-to-self and attending-to-others mark the two ends of an otherwise continuum spectrum of social attention. For a given behavioral context, the mechanisms underlying these two polarities will interact and compete with each other in order to determine a saliency map of social attention that guides our behaviors. An imbalanced competition between these two behavioral and cognitive processes will cause cognitive disorders and neurological symptoms such as autism spectrum disorders and Williams syndrome. I have reviewed both behavioral and neural evidence that support the notion of polarized social attention, and have suggested several testable predictions to corroborate this integrative theory for understanding social attention.

  20. Efficient flapping flight of pterosaurs

    Science.gov (United States)

    Strang, Karl Axel

    In the late eighteenth century, humans discovered the first pterosaur fossil remains and have been fascinated by their existence ever since. Pterosaurs exploited their membrane wings in a sophisticated manner for flight control and propulsion, and were likely the most efficient and effective flyers ever to inhabit our planet. The flapping gait is a complex combination of motions that sustains and propels an animal in the air. Because pterosaurs were so large with wingspans up to eleven meters, if they could have sustained flapping flight, they would have had to achieve high propulsive efficiencies. Identifying the wing motions that contribute the most to propulsive efficiency is key to understanding pterosaur flight, and therefore to shedding light on flapping flight in general and the design of efficient ornithopters. This study is based on published results for a very well-preserved specimen of Coloborhynchus robustus, for which the joints are well-known and thoroughly described in the literature. Simplifying assumptions are made to estimate the characteristics that can not be inferred directly from the fossil remains. For a given animal, maximizing efficiency is equivalent to minimizing power at a given thrust and speed. We therefore aim at finding the flapping gait, that is the joint motions, that minimize the required flapping power. The power is computed from the aerodynamic forces created during a given wing motion. We develop an unsteady three-dimensional code based on the vortex-lattice method, which correlates well with published results for unsteady motions of rectangular wings. In the aerodynamic model, the rigid pterosaur wing is defined by the position of the bones. In the aeroelastic model, we add the flexibility of the bones and of the wing membrane. The nonlinear structural behavior of the membrane is reduced to a linear modal decomposition, assuming small deflections about the reference wing geometry. The reference wing geometry is computed for

  1. Flight Test Maneuvers for Efficient Aerodynamic Modeling

    Science.gov (United States)

    Morelli, Eugene A.

    2011-01-01

    Novel flight test maneuvers for efficient aerodynamic modeling were developed and demonstrated in flight. Orthogonal optimized multi-sine inputs were applied to aircraft control surfaces to excite aircraft dynamic response in all six degrees of freedom simultaneously while keeping the aircraft close to chosen reference flight conditions. Each maneuver was designed for a specific modeling task that cannot be adequately or efficiently accomplished using conventional flight test maneuvers. All of the new maneuvers were first described and explained, then demonstrated on a subscale jet transport aircraft in flight. Real-time and post-flight modeling results obtained using equation-error parameter estimation in the frequency domain were used to show the effectiveness and efficiency of the new maneuvers, as well as the quality of the aerodynamic models that can be identified from the resultant flight data.

  2. Understanding Barriers and Solutions Affecting Preschool Attendance in Low-Income Families

    Science.gov (United States)

    Susman-Stillman, Amy; Englund, Michelle M.; Storm, Karen J.; Bailey, Ann E.

    2018-01-01

    Preschool attendance problems negatively impact children's school readiness skills and future school attendance. Parents are critical to preschoolers' attendance. This study explored parental barriers and solutions to preschool attendance in low-income families. School-district administrative data from a racially/ethnically diverse sample of…

  3. A Policy Analysis of Student Attendance Standards Related to State Education Policies

    Science.gov (United States)

    Guilliams, Mary Elizabeth

    2014-01-01

    This paper is a project report of a policy analysis of state attendance information available to public schools. Current state attendance information rarely expands beyond compulsory attendance law. It is vague, non-existent or difficult to find. Research provides strong links between student attendance and achievement. Informed school leaders…

  4. Studying Absenteeism in Principles of Macroeconomics: Do Attendance Policies Make a Difference?

    Science.gov (United States)

    Self, Sharmistha

    2012-01-01

    The primary objective of this article is to see if and how attendance policy influences class attendance in undergraduate-level principles of macroeconomics classes. The second objective, which is related to the first, is to examine whether the nature of the attendance policy matters in terms of its impact on class attendance behavior. The results…

  5. Student and Teacher Attendance: The Role of Shared Goods in Reducing Absenteeism

    DEFF Research Database (Denmark)

    Banerjee, Ritwik; King, Elizabeth; Orazem, Peter

    2012-01-01

    . Controlling for the endogeneity of teacher and student attendance, the most powerful factor raising teacher attendance is the attendance of the children in the school, and the most important factor influencing child attendance is the presence of the teacher. The results suggest that one important avenue...

  6. The practice of exclusive breastfeeding among mothers attending a ...

    African Journals Online (AJOL)

    Objectives: The aim of this study was to determine reported infant feeding practice with reference to exclusive breastfeeding, exclusive formula feeding and mixed feeding at six weeks postpartum among women attending a postnatal clinic in the Tswaing subdistrict of North West province, and the strength of the association ...

  7. Aspects of birth history and outcome in diplegics attending ...

    African Journals Online (AJOL)

    Aim. We aimed to study functional mobility and visual performance in spastic diplegic children and adolescents attending specialised schools. Methods. Spastic diplegia (SD) was confirmed by clinical examination. Birth and related history were added to explore relationships between SD, birth weight (BW) and duration of ...

  8. roles of traditional birth attendants and perceptions on the policy

    African Journals Online (AJOL)

    2014-03-01

    Mar 1, 2014 ... the perceptions of TBAs and Skilled Birth Attendants (SBAs) towards the policy discouraging home ... improve maternal health, with the targets of reducing maternal ... Asia, where the majority of maternal deaths occur (3). These two ..... The SBA, with an attitude of cultural humility, could learn from the.

  9. Obstructive sleep apnoea among older patients attending the ...

    African Journals Online (AJOL)

    Aim: To determine the risk of obstructive sleep apnoea and sleep difficulties among older patients attending the geriatric clinic at the University College Hospital (UCH), Ibadan, Nigeria. Methods: The Berlin questionnaires was used to assess the risk of OSA in 843 older patients aged 60 years and above at geriatric clinic, ...

  10. Attendance and Student Performance in Undergraduate Chemistry Courses

    Science.gov (United States)

    Lyubartseva, Ganna; Mallik, Uma Prasad

    2012-01-01

    Numerous studies suggest that attendance may be one of the key factors which influence student performance. Although there have been many studies in introductory science courses, there have been virtually no studies which analyze and compare students' performance from different types of institutions as well as different level of classes. Our study…

  11. Explanations of changes in church attendance between 1970 and 2009

    NARCIS (Netherlands)

    van Ingen, Erik; Moor, Nienke

    2015-01-01

    We deduce hypotheses from theories on religious change to explain changes in church attendance rates. Using a new dataset with 51 countries across a long period we apply panel regression models, which enable us to test well-known theories in a more strict and dynamic fashion than do cross-sectional

  12. Campylobacter spp among Children with acute diarrhea attending ...

    African Journals Online (AJOL)

    Isolation rate in developing countries is between 5-35%. This study aimed at finding prevalence of children with campylobacter infection among children with acute diarrhea attending Mulago hospital. Objective: The objective was to establish the proportion of children infected with Campylobacter spp among children with ...

  13. Impact of Attendance Policy on Adult College Learners

    Science.gov (United States)

    Carr, Tracinal S.

    2014-01-01

    This qualitative evaluation focused on the problem of student attrition at a northern California college, its attendance policy, the policy's impact on previous students' decisions to persist in school, and on administrators' attempts to increase retention. The purpose for this study was to evaluate the participants' perceptions about their…

  14. Linking Teacher Quality, Student Attendance, and Student Achievement

    Science.gov (United States)

    Gershenson, Seth

    2016-01-01

    Research on the effectiveness of educational inputs, particularly research on teacher effectiveness, typically overlooks teachers' potential impact on behavioral outcomes, such as student attendance. Using longitudinal data on teachers and students in North Carolina I estimate teacher effects on primary school student absences in a value-added…

  15. The Relationship between Attendance Policies and Student Grades

    Science.gov (United States)

    Aaron, Michael D.

    2012-01-01

    The relationship between attendance policies and student grades in college courses was investigated. Specifically, a calculated grade point average was determined for all academic classes taught at Shelton State Community College between 2000 and 2008. These grade point averages were compared descriptively and statistically in an effort to…

  16. Factors associated with late antenatal care attendance in selected ...

    African Journals Online (AJOL)

    Background: Despite antenatal care services being provided free of charge or sometimes at a minimal cost in Zambia, only 19% of women attend antenatal care by their fourth month of pregnancy, as recommended by World Health Organization (WHO). An estimated 21% of pregnant women in urban and 18% in rural ...

  17. Contraceptive‑seeking Behavior of Women Attending Antenatal ...

    African Journals Online (AJOL)

    Contraceptive‑seeking Behavior of Women Attending Antenatal Care in a Developing Country: A Veritable Tool for Slowing Population Growth. ... Background: The use of modern contraceptives has been embraced by developed nations as a means of achieving controlled growth rate. Nigeria, Africa's most populous nation ...

  18. Abdominal obesity in adolescent girls attending a public secondary ...

    African Journals Online (AJOL)

    Background: Deposition of excess fat in the abdominal region is strongly associated with the metabolic disturbances thought to underlie many obesity related complications. Aim: To determine the prevalence of abdominal obesity using waist circumference inadolescents' girls attending a public secondary school in Port ...

  19. Variables influencing delay in antenatal clinic attendance among ...

    African Journals Online (AJOL)

    A delay in deciding to seek antenatal care is predominant among pregnant teenagers in Lesotho. This subsequently leads to delay in reaching treatment and in receiving adequate treatment. Early antenatal care attendance plays a major role in detecting and treating complications of pregnancy and forms a good basis for ...

  20. Attendance motivations and visitor segments within a university agricultural festival

    Science.gov (United States)

    Carla Barbieri; Yasuharu Katsube; Christine Tew

    2010-01-01

    Festivals attract a variety of visitors driven by a complex set of motivations. The objective of this study was to identify and classify motivations for attending the South Farm Showcase (SFS), a university-based agricultural festival in Missouri. The study further developed a motivation-based segmentation of festival visitors and examined their distinct...

  1. Rheumatic manifestations among HIV positive adults attending the ...

    African Journals Online (AJOL)

    Rheumatic manifestations among HIV positive adults attending the Infectious ... diseases seen depend on a number of factors such as, the CD4 count, HLA status ... population were commonest finding followed by HIV associated arthritis at 4.3%. ... affected with the knees (28.8%) and ankles (26.9%) contributing the highest.

  2. Utilization of health care services by depressed patients attending ...

    African Journals Online (AJOL)

    2011-06-15

    Jun 15, 2011 ... all patients attending the general out‑patient department from 16 years of age and above and those who consented to participate. Excluded were patients who abuse alcohol or drugs, patients with past history of psychiatric illness other than depression, patients with altered sensorium and those who failed ...

  3. 77 FR 16221 - Notice of Commission Staff Attendance

    Science.gov (United States)

    2012-03-20

    ... Commission's staff may attend the following meeting related to the transmission planning activities of the Southwest Power Pool, Inc. (SPP): SPP Strategic Planning Committee Task Force on Order No. 1000 Meeting.... The above-referenced meeting is open to stakeholders. Further information may be found at www.spp.org...

  4. 77 FR 34034 - Notice of Commission Staff Attendance

    Science.gov (United States)

    2012-06-08

    ... may attend the following meetings related to the transmission planning activities of the Southwest Power Pool, Inc. (SPP): Strategic Planning Committee Task Force on Order 1000 June 7, 2012 8:30 a.m.-3 p... stakeholders. Further information may be found at www.spp.org . The discussions at the meetings described above...

  5. 77 FR 42490 - Notice of Commission Staff Attendance

    Science.gov (United States)

    2012-07-19

    ... may attend the following meetings and/or teleconferences related to the transmission planning activities of the Southwest Power Pool, Inc. (SPP): SPP Strategic Planning Committee July 19, 2012, 8:00 a.m... information may be found at www.spp.org . The discussions at the meetings and teleconferences described above...

  6. 77 FR 2975 - Notice of Commission Staff Attendance

    Science.gov (United States)

    2012-01-20

    .... Docket No. EL11-34-001, Midwest Independent Transmission System Operator, Inc. For more information... may attend the following meetings related to the transmission planning activities of the Southwest Power Pool, Inc. (SPP): SPP Strategic Planning Committee Task Force on Order No. 1000 Meeting, January...

  7. 76 FR 64083 - Notice of Commission Staff Attendance

    Science.gov (United States)

    2011-10-17

    ..., LLC. Docket No. ER09-36-002, Prairie Wind Transmission, LLC. For more information, contact Partha... may attend the following meeting related to the transmission planning activities of the Southwest Power Pool, Inc. (SPP): SPP Strategic Planning Committee Meeting, October 13, 2011,8 a.m.- 3 p.m., Local...

  8. 77 FR 30003 - Notice of Commission Staff Attendance

    Science.gov (United States)

    2012-05-21

    ... Commission's staff may attend the following meeting related to the transmission planning activities of the Southwest Power Pool, Inc. (SPP): Strategic Planning Committee Task Force on Order 1000 May 18, 2012, 8:00 a..., Dallas, TX 75201. The above-referenced meeting is open to stakeholders. Further information may be found...

  9. 77 FR 21765 - Notice of Commission Staff Attendance

    Science.gov (United States)

    2012-04-11

    ... may attend the following meeting related to the transmission planning activities of the Southwest Power Pool, Inc. (SPP): Strategic Planning Committee April 9, 2012. 8 a.m.-3 p.m. Local Time. The above..., Oklahoma 73102. The above-referenced meeting is open to stakeholders. Further information may be found at...

  10. 77 FR 6556 - Notice of Commission Staff Attendance

    Science.gov (United States)

    2012-02-08

    ... may attend the following meeting related to the transmission planning activities of the Southwest Power Pool, Inc. (SPP): Strategic Planning Committee Task Force on Order No. 1000 Meeting, February 10..., Dallas, Texas 72501. The above-referenced meeting is open to stakeholders. Further information may be...

  11. Toxoplasmosis among pregnant women attending antenatal clinic in ...

    African Journals Online (AJOL)

    Toxoplasmosis is a neglected tropical protozoan disease of public health importance. This study estimated the seroprevalence of toxoplasmosis and the associated risk factors among pregnant women attending the antenatal clinic in the University of Port Harcourt Teaching Hospital, Rivers State, Nigeria. Two hundred and ...

  12. Economic Motives to Attend University: A Cross-Country Study

    Science.gov (United States)

    Bartram, Brendan

    2016-01-01

    This paper considers students' economic motives to attend university. Drawing on selected results from a tri-national survey involving online questionnaires and interviews with students at English, German and Portuguese universities, it examines and compares this particular extrinsic motivational dimension, alongside the influence of the national…

  13. Trauma unit attendance: Is there a relationship with weather ...

    African Journals Online (AJOL)

    Weather data, local soccer match locations and results, and information regarding public holidays and long weekends were obtained for the relevant shifts. Average daily attendances for IPV-related injuries and MVCs were compared across the various external factors described. Poisson regression models were fitted and ...

  14. Idiosyncratic Shocks, Child Labor and School Attendance in Indonesia

    Science.gov (United States)

    Kharisma, Bayu

    2017-01-01

    This paper investigates the effect of various idiosyncratic shocks against child labor, child labor hour and school attendance. Also, the role of the assets held by households as one of the coping strategies to mitigate the effects of shocks. The results show that various idiosyncratic shocks that encourage child labor is generally caused by crop…

  15. The practice of exclusive breastfeeding among mothers attending a ...

    African Journals Online (AJOL)

    2012-08-08

    Aug 8, 2012 ... Original Research: The practice of exclusive breastfeeding among mothers ... programme for the PMTCT of HIV, which aims to reduce ... Setting and subjects: This study was conducted among women over the age of 18 years attending their first six weeks ..... publications/2009/9789241598873_eng.pdf. 3.

  16. Self care activities among patients with diabetes attending a tertiary ...

    African Journals Online (AJOL)

    Self care activities among patients with diabetes attending a tertiary care hospital in Mangalore Karnataka, India. ... Conclusions: Self‑care practices were found to be unsatisfactory in almost all aspects except for blood sugar monitoring and treatment adherence. As these practices are essential for prevention of ...

  17. Traditional Birth Attendant Training and Local Birthing Practices in India

    Science.gov (United States)

    Saravanan, Sheela; Turrell, Gavin; Johnson, Helen; Fraser, Jenny; Patterson, Carla

    2011-01-01

    Training birth attendants (TBAs) to provide essential maternal and infant health care services during delivery and ongoing community care in developing countries. Despite inadequate evidence of relevance and effectiveness of TBA training programmes, there has been a policy shift since the 1990s in that many donor agencies funding TBA training…

  18. Improving Emergency Attendance and Mortality – The Case for Unit ...

    African Journals Online (AJOL)

    BACKGROUND: Emergency attendance and mortality which are reliable indicators of quality of care, have been of concern to many health institutions. Different models are being proposed to improve emergency outcomes in different parts of the world. A model to separate a single emergency Unit into multiple emergency ...

  19. Knowledge, attitude and practice of patients attending primary care ...

    African Journals Online (AJOL)

    Background: Extracellular calcium is vital for the functioning of many metabolic processes and neuromuscular activities. Awareness and practice of patients with vitamin D deficiency are very important. Objective: To explore knowledge, attitude and practice of patients receiving vitamin D supplement and attending primary ...

  20. Service Station Attendant and Light Automotive Maintenance, Course Description.

    Science.gov (United States)

    Clifford, Jack W.; And Others

    Prepared by instructors and curriculum specialists, this course of study was designed to meet the individual needs of the dropout and/or hard-core unemployed youth by providing training as a service station attendant and light automotive maintenance mechanic. The achievement level of each student is determined at entry, and small instructional…

  1. Evaluation of Service Station Attendant-Auto Care Project.

    Science.gov (United States)

    Cress, Ronald J.

    The project described offers an approach to providing occupational skills to socially and educationally handicapped youth, specifically the skills necessary for a service station attendant in driveway salesmanship and auto care. The 10-page evaluation report presents project goals and objectives with evaluation data (represented graphically) and…

  2. Antenatal Care and Skilled Birth Attendance in Three Communities ...

    African Journals Online (AJOL)

    Antenatal Care and Skilled Birth Attendance in Three Communities in Kaduna State, Nigeria. ... Most importantly, safer delivery options that would be acceptable in communities where women traditionally birth at home need to be explored (Afr. J. Reprod. Health 2010; 14[3]: 89-96). Key words: Antenatal care, skilled birth ...

  3. Prevalence of dental caries among adult patients attending a tertiary ...

    African Journals Online (AJOL)

    Aim: To determine the prevalence of dental caries among adult patients attending University of Port Harcourt Teaching Hospital Dental centre and to compare it with previously reported results. Methods: A ... A self-administered anonymous questionnaire was used to get the socio-demographic data of the patients.

  4. Metabolic Syndrome in Patients attending the Staff Clinic of a ...

    African Journals Online (AJOL)

    Background/objective: Metabolic syndrome (MetS) is characterised by a clustering of cardiometabolic risk factors. It contributes to morbidity and mortality in adults. The objective of the study was to identify new cases and associated factors of MetS in patients attending a tertiary hospital staff clinic. Materials and methods: The ...

  5. Is the attendance of paediatricians at all elective caesarean sections ...

    African Journals Online (AJOL)

    Objectives. To determine the need for resuscitation at the birth of babies delivered by elective caesarean section (CS) and to record the time spent by doctors attending such deliveries. Methods. Data were collected prospectively on all elective CSs performed at Groote Schuur Hospital over a 3-month period. Data collected ...

  6. Motives for attending the Cultivaria Arts festival | Saayman | South ...

    African Journals Online (AJOL)

    Cultivaria is one of South Africa's newest arts festivals and is held at Paarl annually. The festival is one combining the arts, wine and food. The purpose of this research is to determine the reasons (motives) for visitors attending the festival. This information is needed so that a marketing plan can be developed, as well as to ...

  7. Eye tracking to explore attendance in health-state descriptions

    NARCIS (Netherlands)

    Selivanova, Anna; Krabbe, Paul F M

    2018-01-01

    INTRODUCTION: A crucial assumption in health valuation methods is that respondents pay equal attention to all information components presented in the response task. So far, there is no solid evidence that respondents are fulfilling this condition. The aim of our study is to explore the attendance to

  8. Pattern of attendance and predictors of default among Nigerian ...

    African Journals Online (AJOL)

    Objective: To assess the pattern of and factors associated with outpatient clinic attendance among patients diagnosed with schizophrenia at a Nigerian psychiatric hospital. Method: This was a cross-sectional descriptive study of 313 consecutive outpatients with diagnosis of schizophrenia confirmed with the Structured ...

  9. Obesity and associated factors in young adults attending tertiary ...

    African Journals Online (AJOL)

    Obesity and associated factors in young adults attending tertiary institutions ... and associated factors in a group of university undergraduates in south-east Nigeria. ... being a female (X2 = 47.91), first year student (X2 = 41.82), and having high ...

  10. Motivation for and Benefits from Attending the AP Statistics Reading

    Science.gov (United States)

    Jacobbe, Tim; Hartlaub, Bradley A.; Whitaker, Douglas

    2013-01-01

    This study explores the Advanced Placement® Statistics reading as a source of professional development for teachers. The study was conducted to capture the motivation for and benefits from attending the collective grading. Research has shown that examining student work during professional development has implications for teaching. The premise of…

  11. Classroom Carbon Dioxide Concentration, School Attendance, and Educational Attainment

    Science.gov (United States)

    Gaihre, Santosh; Semple, Sean; Miller, Janice; Fielding, Shona; Turner, Steve

    2014-01-01

    Background: We tested the hypothesis that classroom carbon dioxide (CO[subscript 2]) concentration is inversely related to child school attendance and educational attainment. Methods: Concentrations of CO[subscript 2] were measured over a 3-5?day period in 60 naturally ventilated classrooms of primary school children in Scotland. Concentrations of…

  12. Attending National Library Legislative Day: Why Is It Important?

    Science.gov (United States)

    Young, Robyn

    2009-01-01

    Prior to this year, the National Library Legislative Day never really held much importance for the author as a school library media specialist. However, this feeling changed after she attended her first National Library Legislative Day in May of 2008. The goal of this day is to allow everyday practicing professionals to speak with their national…

  13. Contraceptive practices adopted by women attending an urban ...

    African Journals Online (AJOL)

    To estimate proportion of couples using contraceptive methods, identify reasons for their adoption & non adoption and to assess unmet needs for contraception. Methods: A cross sectional descriptive study of four months duration was conducted among married women in reproductive age group (15 – 49 years) attending ...

  14. Team Performance and Sport Attendance of South African Super ...

    African Journals Online (AJOL)

    In professional rugby, competitions such as the Super Rugby and Currie Cup benefit from the lucrative money-generating opportunities offered. This study focuses on team performance and spectator attendance of the Super Rugby and Currie Cup competitions. Results indicated some interesting relationships between ...

  15. Induced abortion among women attending antenatal clinics in ...

    African Journals Online (AJOL)

    Objectives: Unsafe abortion is a public health concern because of its impact on maternal morbidity and mortality. The objective of this study was to document on induced abortion in Yaounde, Cameroon. Design: Cross-sectional study. Setting: Six antenatal clinics in Yaounde, Cameroon. Methods: Women attending ...

  16. Use of herbal medicines among pregnant women a attending ...

    African Journals Online (AJOL)

    Objective: To assess the knowledge and use of herbal medicines among pregnant women attending the antenatal clinic at Kiryandongo general hospital. Design: A descriptive cross-sectional study. Setting: Kiryandongo general hospital in Masindi District, mid-western Uganda. Subjects: Four hundred (400) pregnant ...

  17. The Choice of Contraceptive Method among New Clients attending ...

    African Journals Online (AJOL)

    Background Nigeria is Africa's most populous state with a low rate of contraceptive use. Factors affecting the method of contraception chosen vary widely across different parts of the country. We studied the preferred methods and characteristics of new clients attending a family planning clinic in a teaching hospital in ...

  18. Compulsory Attendance Policies: About Age or Intervention? SREB Focus Report

    Science.gov (United States)

    Grove, Jeffrey

    2014-01-01

    Over the past decade, SREB state policy-makers have focused on actions to reduce dropout rates and increase high school graduation rates. Some policy-makers have suggested that raising their state's compulsory attendance age (often called the dropout age) to require students to stay in school until age 17 or 18 is an important step. However,…

  19. Variables influencing delay in antenatal clinic attendance among ...

    African Journals Online (AJOL)

    Although antenatal care is provided at different levels, Lesotho still has a ... This shortage of health care personnel and the impact of HIV/Aids result in ... of early attendance, denial of the pregnancy by the boyfriend, the fact that sex outside of ..... “My parents were still negotiating with ... want him to pay for the damage he did.

  20. Syphilis and HIV infections among pregnant women attending ...

    African Journals Online (AJOL)

    Syphilis and HIV infections among pregnant women attending antenatal clinics in Republic of Congo. ... Introduction: HIV and syphilis during pregnancy remain a public health concern especially in developing countries. Pregnant women ... Marital status and sentinel site location were a risk factor associated with. HIV and ...

  1. Influence of Peer Victimization on School Attendance among Senior ...

    African Journals Online (AJOL)

    Nneka Umera-Okeke

    Senior Secondary School Students in Uromi Metropolis. Ojugo ... Key words: Peer victimization, Bullying, School Attendance, Students, Counselling ... challenges children face at school; as a growing number of students perceive their .... record in Secondary Schools in. Uromi Metropolis. Score Range. Grade. Interpretation.

  2. Reducing Attendance Time in LR-EPONs With Differentiated Services

    KAUST Repository

    Elrasad, Amr

    2015-04-09

    This work presents a novel on-the-fly void filling scheme for Long-Reach EPON called Size Controlled Batch Void Filling (SCBVF). SCBVF aims at reducing the time between consecutive bandwidth grants (attendance time) and hence reducing the average delay for delay-sensitive traffic.

  3. The Dynamics and Correlates of Religious Service Attendance in Adolescence

    Science.gov (United States)

    Hardie, Jessica Halliday; Pearce, Lisa D.; Denton, Melinda Lundquist

    2016-01-01

    This study examines changes in religious service attendance over time for a contemporary cohort of adolescents moving from middle to late adolescence. We use two waves of a nationally representative panel survey of youth from the National Study of Youth and Religion (NSYR) to examine the dynamics of religious involvement during adolescence. We…

  4. Impact of Training traditional birth attendants on maternal mortality ...

    African Journals Online (AJOL)

    Impact of Training traditional birth attendants on maternal mortality and ... with focus on reducing the high rate of maternal and new-born mortality in rural settings in ... What is needed is to identify TBAs, map their distribution and train them on ...

  5. Knowledge Attitude and Practice Towards Skilled Care Attendance ...

    African Journals Online (AJOL)

    response rate was 851 (91.8%) of the sample size. ... Conclusion: The study revealed that skilled care attendance at birth is still very low as compared to other ... Introduction. Maternal Mortality in Eritrea is one of the highest in the world.

  6. HIV status disclosure and ARV adherence among patients attending ...

    African Journals Online (AJOL)

    HIV status disclosure and ARV adherence among patients attending Jomo Kenyatta University comprehensive care clinic. ... Failure to daily intake of Anti Retrovirals (ARV) not only prevents treatment failure but may also lead to viral development of resistance to the drugs. The fact that HIV is mainly sexually transmitted ...

  7. Teacher-Provided Positive Attending to Improve Student Behavior

    Science.gov (United States)

    Perle, Jonathan G.

    2016-01-01

    A teacher serves many important roles within a classroom, including an educator and a manager of child behavior. Inattention, overactivity, and noncompliance have long been cited as some of the most common areas of reported difficulty for schools (Axelrod & Zank, 2012; Goldstein, 1995). The evidence-based practice of positive attending (i.e.,…

  8. Student attendance and student achievement: a tumultuous and ...

    African Journals Online (AJOL)

    Administrator

    2001-12-21

    Dec 21, 2001 ... students must be present in school in order to benefit from academic program in .... attend class but passed with sometimes very high scores (e.g. 83% in CBS ..... done outside class or interaction forms, through online learning plat-form. ... also has obliged all journalism students to possess either an iPhone.

  9. Skilled Birth Attendance in Nigeria: A Function of Frequency and ...

    African Journals Online (AJOL)

    AJRH Managing Editor

    The utilization rate of maternal services remains low in sub-Saharan Africa and may ... This study examines the influence of antenatal care (ANC) on skilled birth attendance (SBA) in Nigeria. ... Despite 70% of the women ... poor health outcomes during pregnancy such as .... approximately 50 percent more likely to have had.

  10. Prevalence of sexually transmitted infections in women attending ...

    African Journals Online (AJOL)

    Objective. To determine the prevalence of Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG) and syphilis in pregnant women. Methods. A cross-sectional study was conducted among women attending antenatal care clinics (ANCs). Blood samples were tested for syphilis using the rapid plasma reagin (RPR) and

  11. Introverts' and Extraverts' Responses to Nonverbal Attending Behavior

    Science.gov (United States)

    Genthner, Robert W.; Moughan, James

    1977-01-01

    The different responses of introverts and extraverts to two types of helper nonverbal attending were examined. Subjects were 26 introverts and 26 extraverts, as defined by Eysenck and Eysenck's questionnaire. Introverts rated the listener higher than did extraverts, independent of his posture. (Author)

  12. Prevalence Of Malaria Parasitaemia In Pregnant Women Attending ...

    African Journals Online (AJOL)

    The prevalence of malaria parasitaemia in 200 pregnant women attending the antenatal clinic (ANC) of Jos University Teaching Hospital (JUTH) between April and June 2003 was determined. Geimsa-stained thick and thin blood films were examined microscopically for malaria parasites; the parasite densities were ...

  13. Family Integrants Obstructing Pupils' School Attendance and Girl ...

    African Journals Online (AJOL)

    This study is hinged on finding out the family integrants obstructing pupils' school attendance, the girl – child education and proffering solution to it via counsellors' strategies. The samples were three hundred (300) parents and twenty (20) counsellors. This brought the total sample to three hundred and twenty (320).

  14. SwyftTapp: An NFC based attendance system using fingerprint ...

    African Journals Online (AJOL)

    The conventional method for recording attendance in the Kwame Nkrumah University of Science and Technology (KNUST), is the manual system, where sheets are passed round for students to write their names, student ID numbers and then append their signatures. The current manual system was observed to be both ...

  15. Prevalence of low back pain among filling stations attendants in ...

    African Journals Online (AJOL)

    ... 12 months prevalence of LBP prior to the study, severity of LBP, history of LBP, causative factors and management of LBP and its effect on filling stations attendant's activities and activities of daily living. It was adapted from a previous study Titled Prevalence of Low Back Pain among Traffic Warden in Lagos state. The data ...

  16. Factors influencing non-attendance of clinic appointments in ...

    African Journals Online (AJOL)

    without an appointment, with an average of eight patients per day missing their appointment. The low rate of compliance with clinic appointments was of concern for the physicians at both the diabetes clinics. Prior to the current study, the reasons for non-attendance had not been examined. Materials and methods. A sample ...

  17. Risk factors for anaemia among HIV infected children attending care ...

    African Journals Online (AJOL)

    There is paucity of data describing the risk factors for anaemia among HIV infected children in Tanzania. This cross sectional study was carried out to determine the contributing factors for anaemia among HIV-infected children attending Muhimbili National Hospital in Dar es Salaam. Both univariate and multivariate logistic ...

  18. Anaemia among HIV infected children attending care and treatment ...

    African Journals Online (AJOL)

    Introduction: Anaemia is common among HIV infected patients; causes of anaemia in these patients are multifactorial. Anemia is noted as one of important predictors of outcome in HIV infected patients. Tis study was carried out to determine the prevalence of anaemia among HIV infected children attending HIV clinic at ...

  19. An Evaluation of the Attendance Policy and Program and Its Perceived Effects on High School Attendance in Newport News Public Schools

    OpenAIRE

    Smith, Wayne Keith

    1998-01-01

    The purpose of this quantitative study is to determine the effects of the attendance policy and attendance program after one year of implementation in Newport News Public Schools with a total high school population of approximately 5,820 students. The school district recently implemented a new attendance policy and program to address high school student absenteeism. This multi-faceted study examined the effects of this new policy by conducting statistical analyses of attendance data, pro...

  20. The Orion Exploration Flight Test Post Flight Solid Particle Flight Environment Inspection and Analysis

    Science.gov (United States)

    Miller, Joshua E.

    2016-01-01

    Orbital debris in the millimeter size range can pose a hazard to current and planned spacecraft due to the high relative impact speeds in Earth orbit. Fortunately, orbital debris has a relatively short life at lower altitudes due to atmospheric effects; however, at higher altitudes orbital debris can survive much longer and has resulted in a band of high flux around 700 to 1,500 km above the surface of the Earth. While large orbital debris objects are tracked via ground based observation, little information can be gathered about small particles except by returned surfaces, which until the Orion Exploration Flight Test number one (EFT-1), has only been possible for lower altitudes (400 to 500 km). The EFT-1 crew module backshell, which used a porous, ceramic tile system with surface coatings, has been inspected post-flight for potential micrometeoroid and orbital debris (MMOD) damage. This paper describes the pre- and post-flight activities of inspection, identification and analysis of six candidate MMOD impact craters from the EFT-1 mission.

  1. The role of situation assessment and flight experience in pilots' decisions to continue visual flight rules flight into adverse weather.

    Science.gov (United States)

    Wiegmann, Douglas A; Goh, Juliana; O'Hare, David

    2002-01-01

    Visual flight rules (VFR) flight into instrument meteorological conditions (IMC) is a major safety hazard in general aviation. In this study we examined pilots' decisions to continue or divert from a VFR flight into IMC during a dynamic simulation of a cross-country flight. Pilots encountered IMC either early or later into the flight, and the amount of time and distance pilots flew into the adverse weather prior to diverting was recorded. Results revealed that pilots who encountered the deteriorating weather earlier in the flight flew longer into the weather prior to diverting and had more optimistic estimates of weather conditions than did pilots who encountered the deteriorating weather later in the flight. Both the time and distance traveled into the weather prior to diverting were negatively correlated with pilots' previous flight experience. These findings suggest that VFR flight into IMC may be attributable, at least in part, to poor situation assessment and experience rather than to motivational judgment that induces risk-taking behavior as more time and effort are invested in a flight. Actual or potential applications of this research include the design of interventions that focus on improving weather evaluation skills in addition to addressing risk-taking attitudes.

  2. Group Prenatal Care Attendance: Determinants and Relationship with Care Satisfaction.

    Science.gov (United States)

    Cunningham, Shayna D; Grilo, Stephanie; Lewis, Jessica B; Novick, Gina; Rising, Sharon Schindler; Tobin, Jonathan N; Ickovics, Jeannette R

    2017-04-01

    Objectives Group prenatal care results in improved birth outcomes in randomized controlled trials, and better attendance at group prenatal care visits is associated with stronger clinical effects. This paper's objectives are to identify determinants of group prenatal care attendance, and to examine the association between proportion of prenatal care received in a group context and satisfaction with care. Methods We conducted a secondary data analysis of pregnant adolescents (n = 547) receiving group prenatal care in New York City (2008-2012). Multivariable linear regression models were used to test associations between patient characteristics and percent of group care sessions attended, and between the proportion of prenatal care visits that occurred in a group context and care satisfaction. Results Sixty-seven groups were established. Group sizes ranged from 3 to 15 women (mean = 8.16, SD = 3.08); 87 % of groups enrolled at least five women. Women enrolled in group prenatal care supplemented group sessions with individual care visits. However, the percent of women who attended each group session was relatively consistent, ranging from 56 to 63 %. Being born outside of the United States was significantly associated with higher group session attendance rates [B(SE) = 11.46 (3.46), p = 0.001], and women who received a higher proportion of care in groups reported higher levels of care satisfaction [B(SE) = 0.11 (0.02), p prenatal care as possible in a group setting, as well as value-based reimbursement models and other incentives to encourage more widespread adoption of group prenatal care.

  3. Impact of Students’ Class Attendance on Recalling Previously Acquired Information

    Directory of Open Access Journals (Sweden)

    Camellia Hemyari

    2018-03-01

    Full Text Available Background: In recent years, availability of class material including typed lectures, the professor’s Power Point slides, sound recordings, and even videos made a group of students feel that it is unnecessary to attend the classes. These students usually read and memorize typed lectures within two or three days prior to the exams and usually pass the tests even with low attendance rate. Thus, the question is how effective is this learning system and how long the one-night memorized lessons may last.Methods: A group of medical students (62 out of 106 students, with their class attendance and educational achievements in the Medical Mycology and Parasitology course being recorded since two years ago, was selected and their knowledge about this course was tested by multiple choice questions (MCQ designed based on the previous lectures.Results: Although the mean re-exam score of the students at the end of the externship was lower than the corresponding final score, a significant association was found between the scores of the students in these two exams (r=0.48, P=0.01. Moreover, a significant negative association was predicted between the number of absences and re-exam scores (r=-0.26, P=0.037.Conclusion: As our findings show, the phenomenon of recalling the acquired lessons is preserved for a long period of time and it is associated with the students’ attendance. Many factors including generation effect (by taking notes and cued-recall (via slide picture might play a significant role in the better recalling of the learned information in students with good class attendance.Keywords: STUDENT, MEMORY, LONG-TERM, RECALL, ABSENTEEISM, LEARNING

  4. Disabled women's attendance at community women's groups in rural Nepal.

    Science.gov (United States)

    Morrison, J; Colbourn, T; Budhathoki, B; Sen, A; Adhikari, D; Bamjan, J; Pathak, S; Basnet, A; Trani, J F; Costello, A; Manandhar, D; Groce, N

    2017-06-01

    There is strong evidence that participatory approaches to health and participatory women's groups hold great potential to improve the health of women and children in resource poor settings. It is important to consider if interventions are reaching the most marginalized, and therefore we examined disabled women's participation in women's groups and other community groups in rural Nepal. People with disabilities constitute 15% of the world's population and face high levels of poverty, stigma, social marginalization and unequal access to health resources, and therefore their access to women's groups is particularly important. We used a mixed methods approach to describe attendance in groups among disabled and non-disabled women, considering different types and severities of disability. We found no significant differences in the percentage of women that had ever attended at least one of our women's groups, between non-disabled and disabled women. This was true for women with all severities and types of disability, except physically disabled women who were slightly less likely to have attended. Barriers such as poverty, lack of family support, lack of self-confidence and attendance in many groups prevented women from attending groups. Our findings are particularly significant because disabled people's participation in broader community groups, not focused on disability, has been little studied. We conclude that women's groups are an important way to reach disabled women in resource poor communities. We recommend that disabled persons organizations help to increase awareness of disability issues among organizations running community groups to further increase their effectiveness in reaching disabled women. © The Author 2015. Published by Oxford University Press.

  5. VIRTIS-M flight lamps

    International Nuclear Information System (INIS)

    Melchiorri, R.; Piccioni, G.; Mazzoni, A.

    2003-01-01

    VIRTIS-M is a visible-infrared (VIS-IR) image spectrometer designed for the Rosetta mission; it intends to provide detailed informations on the physical, chemical, and mineralogical nature of comets and asteroids. The in-flight performances of VIRTIS-M are expected to be influenced by various disturbances, like the initial strong vibrations of the rocket, the long duration of the experiment (from 2003 to 2010), as well as other possible environmental changes; therefore, an in-flight recalibration procedure is mandatory. Quite often in such kinds of missions, a light emission diode (LED) is employed to calibrate the on-board spectrometers by taking advantage of the relative small dimensions, stability, and hardness of these sources. VIRTIS-M is the first image spectrometer that will use a new generation of lamps for internal calibrations. These new lamps are characterized by a wide spectral range with a blackbody-like emission with an effective temperature of about (2400-2600 K), thereby covering the whole VIRTIS-M's spectral range (0.2-5 μm); i.e., they offer the possibility of a wider spectral calibration in comparison with the quasimonochromatic LED emission. A precise spectral calibration is achieved by adding special filters for visible and infrared ranges in front of the window source, containing many narrow absorption lines. In the present article, we describe the calibration and tests of some flight prototypes of these lamps (VIS and IR), realized by the Officine Galileo and calibrated by the Consiglio Nazionale delle Ricerche-Istituto di Astrofisica Spaziale e Fisica Cosmica

  6. Ethernet for Space Flight Applications

    Science.gov (United States)

    Webb, Evan; Day, John H. (Technical Monitor)

    2002-01-01

    NASA's Goddard Space Flight Center (GSFC) is adapting current data networking technologies to fly on future spaceflight missions. The benefits of using commercially based networking standards and protocols have been widely discussed and are expected to include reduction in overall mission cost, shortened integration and test (I&T) schedules, increased operations flexibility, and hardware and software upgradeability/scalability with developments ongoing in the commercial world. The networking effort is a comprehensive one encompassing missions ranging from small University Explorer (UNEX) class spacecraft to large observatories such as the Next Generation Space Telescope (NGST). Mission aspects such as flight hardware and software, ground station hardware and software, operations, RF communications, and security (physical and electronic) are all being addressed to ensure a complete end-to-end system solution. One of the current networking development efforts at GSFC is the SpaceLAN (Spacecraft Local Area Network) project, development of a space-qualifiable Ethernet network. To this end we have purchased an IEEE 802.3-compatible 10/100/1000 Media Access Control (MAC) layer Intellectual Property (IP) core and are designing a network node interface (NNI) and associated network components such as a switch. These systems will ultimately allow the replacement of the typical MIL-STD-1553/1773 and custom interfaces that inhabit most spacecraft. In this paper we will describe our current Ethernet NNI development along with a novel new space qualified physical layer that will be used in place of the standard interfaces. We will outline our plans for development of space qualified network components that will allow future spacecraft to operate in significant radiation environments while using a single onboard network for reliable commanding and data transfer. There will be a brief discussion of some issues surrounding system implications of a flight Ethernet. Finally, we will

  7. Patient-Centered Handovers: Ethnographic Observations of Attending and Resident Physicians: Ethnographic Observations of Attending and Resident Physicians.

    Science.gov (United States)

    Mount-Campbell, Austin F; Rayo, Michael F; OʼBrien, James J; Allen, Theodore T; Patterson, Emily S

    Handover communication improvement initiatives typically employ a "one size fits all" approach. A human factors perspective has the potential to guide how to tailor interventions to roles, levels of experience, settings, and types of patients. We conducted ethnographic observations of sign-outs by attending and resident physicians in 2 medical intensive care units at one institution. Digitally audiotaped data were manually analyzed for content using codes and time spent using box plots for emergent categories. A total of 34 attending and 58 resident physician handovers were observed. Resident physicians spent more time for "soon to be discharged" and "higher concern" patients than attending physicians. Resident physicians spent less time discussing patients which they had provided care for within the last 3 days ("handbacks"). The study suggested differences for how handovers were conducted for attending and resident physicians for 3 categories of patients; handovers differ on the basis of role or level of expertise, patient type, and amount of prior knowledge of the patient. The findings have implications for new directions for subsequent research and for how to tailor quality improvement interventions based upon the role, level of experience, level of prior knowledge, and patient categories.

  8. Lymphocytes on sounding rocket flights.

    Science.gov (United States)

    Cogoli-Greuter, M; Pippia, P; Sciola, L; Cogoli, A

    1994-05-01

    Cell-cell interactions and the formation of cell aggregates are important events in the mitogen-induced lymphocyte activation. The fact that the formation of cell aggregates is only slightly reduced in microgravity suggests that cells are moving and interacting also in space, but direct evidence was still lacking. Here we report on two experiments carried out on a flight of the sounding rocket MAXUS 1B, launched in November 1992 from the base of Esrange in Sweden. The rocket reached the altitude of 716 km and provided 12.5 min of microgravity conditions.

  9. The flight of uncontrolled rockets

    CERN Document Server

    Gantmakher, F R; Dryden, H L

    1964-01-01

    International Series of Monographs on Aeronautics and Astronautics, Division VII, Volume 5: The Flight of Uncontrolled Rockets focuses on external ballistics of uncontrolled rockets. The book first discusses the equations of motion of rockets. The rocket as a system of changing composition; application of solidification principle to rockets; rotational motion of rockets; and equations of motion of the center of mass of rockets are described. The text looks at the calculation of trajectory of rockets and the fundamentals of rocket dispersion. The selection further focuses on the dispersion of f

  10. Consort 1 sounding rocket flight

    Science.gov (United States)

    Wessling, Francis C.; Maybee, George W.

    1989-01-01

    This paper describes a payload of six experiments developed for a 7-min microgravity flight aboard a sounding rocket Consort 1, in order to investigate the effects of low gravity on certain material processes. The experiments in question were designed to test the effect of microgravity on the demixing of aqueous polymer two-phase systems, the electrodeposition process, the production of elastomer-modified epoxy resins, the foam formation process and the characteristics of foam, the material dispersion, and metal sintering. The apparatuses designed for these experiments are examined, and the rocket-payload integration and operations are discussed.

  11. STS-72 Flight Day 7

    Science.gov (United States)

    1996-01-01

    On this seventh day of the STS-72 mission, the flight crew, Cmdr. Brian Duffy, Pilot Brent W. Jett, and Mission Specialists Leroy Chiao, Daniel T. Barry, Winston E. Scott, and Koichi Wakata (NASDA), awakened to music from the Walt Disney movie, 'Snow White and the Seven Dwarfs.' Chiao and Scott performed the second spacewalk of the mission where they tested equipment and work platforms that will be used in building the planned International Space Station. This spacewalk was almost seven hours long. Wakata conducted an interview with and answered questions from six graders from a Japanese school in Houston, Texas.

  12. F-8 SCW in flight

    Science.gov (United States)

    1973-01-01

    A Vought F-8A Crusader was selected by NASA as the testbed aircraft (designated TF-8A) to install an experimental Supercritical Wing in place of the conventional wing. The unique design of the Supercritical Wing (SCW) reduces the effect of shock waves on the upper surface near Mach 1, which in turn reduces drag. In this photograph a Vought F-8A Crusader is shown being used as a flying testbed for an experimental Supercritical Wing airfoil. The smooth fairing of the fiberglass glove with the wing is illustrated in this view. This is the configuration of the F-8 SCW aircraft late in the program. The SCW team fitted the fuselage with bulges fore and aft of the wings. This was similar to the proposed shape of a near-sonic airliner. Both the SCW airfoil and the bulged-fuselage design were optimal for cruise at Mach 0.98. Dr. Whitcomb (designer of the SCW) had previously spent about four years working on supersonic transport designs. He concluded that these were impractical due to their high operating costs. The high drag at speeds above Mach 1 resulted in greatly increased costs. Following the fuel-price rises caused by the October 1973 oil embargo, airlines lost interest in near-sonic transports. Rather, they wanted a design that would have lower fuel consumption. Dr. Whitcomb developed a modified supercritical-wing shape that provided higher lift-to-drag ratios at the same speeds. He did this by using thicker airfoil sections and a reduced wing sweepback. This resulted in an increased aspect ratio without an increase in wing weight. In the three decades since the F-8 SCW flew, the use of such airfoils has become common. The F-8 Supercritical Wing was a flight research project designed to test a new wing concept designed by Dr. Richard Whitcomb, chief of the Transonic Aerodynamics Branch, Langley Research Center, Hampton, Virginia. Compared to a conventional wing, the supercritical wing (SCW) is flatter on the top and rounder on the bottom with a downward curve at the

  13. Space Flight Ionizing Radiation Environments

    Science.gov (United States)

    Koontz, Steve

    2017-01-01

    The space-flight ionizing radiation (IR) environment is dominated by very high-kinetic energy-charged particles with relatively smaller contributions from X-rays and gamma rays. The Earth's surface IR environment is not dominated by the natural radioisotope decay processes. Dr. Steven Koontz's lecture will provide a solid foundation in the basic engineering physics of space radiation environments, beginning with the space radiation environment on the International Space Station and moving outward through the Van Allen belts to cislunar space. The benefits and limitations of radiation shielding materials will also be summarized.

  14. 14 CFR 63.23 - Special purpose flight engineer and flight navigator certificates: Operation of U.S.-registered...

    Science.gov (United States)

    2010-01-01

    ... purpose flight engineer and flight navigator certificates: Operation of U.S.-registered civil airplanes... flight engineer or flight navigator duties on a civil airplane of U.S. registry, leased to a person not a... certificate holder is performing flight engineer or flight navigator duties on the U.S.-registered civil...

  15. Email for the coordination of healthcare appointments and attendance reminders.

    Science.gov (United States)

    Atherton, Helen; Sawmynaden, Prescilla; Meyer, Barbara; Car, Josip

    2012-08-15

    Email is a popular and commonly-used method of communication, but its use in health care is not routine. Where email communication has been utilised in health care, its purposes have included the coordination of healthcare appointments and attendance reminders, but the effects of using email in this way are not known. This review considers the use of email for the coordination of healthcare appointments and reminders for attendance; particularly scheduling, rescheduling and cancelling healthcare appointments, and providing prompts/reminders for attendance at appointments. To assess the effects of using email for the coordination of healthcare appointments and attendance reminders, compared to other forms of coordinating appointments and reminders, on outcomes for health professionals, patients and carers, and health services, including harms. We searched: the Cochrane Consumers and Communication Review Group Specialised Register, the Cochrane Central Register of Controlled Trials (CENTRAL, The Cochrane Library, Issue 1 2010), MEDLINE (OvidSP) (1950 to January 2010), EMBASE (OvidSP) (1980 to January 2010), PsycINFO (OvidSP) (1967 to January 2010), CINAHL (EbscoHOST) (1982 to February 2010),and ERIC (CSA) (1965 to January 2010). We searched grey literature: theses/dissertation repositories, trials registers and Google Scholar (searched July 2010). We used additional search methods: examining reference lists and contacting authors. Randomised controlled trials, quasi-randomised trials, controlled before and after studies and interrupted time series studies of interventions that use email for scheduling health appointments, for reminders for a scheduled health appointment or for ongoing coordination of health appointments and that took the form of 1) unsecured email 2) secure email or 3) web messaging. All healthcare professionals, patients and caregivers in all settings were considered. Two review authors independently assessed the titles and abstracts of retrieved

  16. STS-95 Post Flight Presentation

    Science.gov (United States)

    1998-01-01

    The STS-95 flight crew, Cmdr. Curtis L. Brown, Pilot Steven W. Lindsey, Mission Specialists Scott E. Parazynski, Stephen K. Robinson, and Pedro Duque, and Payload Specialists Chiaki Mukai and John H. Glenn present a video mission over-view of their space flight. Images include prelaunch activities such as eating the traditional breakfast, crew suit-up, and the ride out to the launch pad. Also, included are various panoramic views of the shuttle on the pad. The crew can be seen being readied in the "whiteroom" for their mission. After the closing of the hatch and arm retraction, launch activities are shown including countdown, engine ignition, launch, and the separation of the Solid Rocket Boosters. The primary objectives, which include the conducting of a variety of science experiments in the pressurized SPACEHAB module, the deployment and retrieval of the Spartan free-flyer payload, and operations with the HST Orbiting Systems Test (HOST) and the International Extreme Ultraviolet Hitchhiker (IEH) payloads are discussed in both the video and still photo presentation.

  17. Helicopter Flight Procedures for Community Noise Reduction

    Science.gov (United States)

    Greenwood, Eric

    2017-01-01

    A computationally efficient, semiempirical noise model suitable for maneuvering flight noise prediction is used to evaluate the community noise impact of practical variations on several helicopter flight procedures typical of normal operations. Turns, "quick-stops," approaches, climbs, and combinations of these maneuvers are assessed. Relatively small variations in flight procedures are shown to cause significant changes to Sound Exposure Levels over a wide area. Guidelines are developed for helicopter pilots intended to provide effective strategies for reducing the negative effects of helicopter noise on the community. Finally, direct optimization of flight trajectories is conducted to identify low noise optimal flight procedures and quantify the magnitude of community noise reductions that can be obtained through tailored helicopter flight procedures. Physically realizable optimal turns and approaches are identified that achieve global noise reductions of as much as 10 dBA Sound Exposure Level.

  18. Morphing flight control surface for advanced flight performance

    Science.gov (United States)

    Detrick, Matt; Kwak, Seung-Keon; Yoon, Hwan-Sik

    2006-03-01

    A novel Morphing Flight Control Surface (MFCS) system has been developed. The distinction of this research effort is that the SenAnTech team has incorporated our innovative Highly Deformable Mechanism (HDM) into our MFCS. The feasibility of this novel technology for deformable wing structures, such as airfoil shaping, warping or twisting with a flexure-based high displacement PZT actuator has been demonstrated via computational simulations such as Finite Element Analysis (FEA) and Computational Fluid Dynamics (CFD). CFD was implemented to verify the accuracy of the complex potential flow theory for this application. Then, complex potential flow theory, kinematics, geometry, and static force analysis were incorporated into a multidisciplinary GUI simulation tool. This tool has been used to aid the design of the MFCS. The results show that we can achieve up to five degrees of wing twisting with our proposed system, while using minimal volume within the wing and adding little weight.

  19. F-16XL ship #1 (#849) during first flight of the Digital Flight Control System (DFCS)

    Science.gov (United States)

    1997-01-01

    After completing its first flight with the Digital Flight Control System on December 16, 1997, the F-16XL #1 aircraft began a series of envelope expansion flights. On January 27 and 29, 1998, it successfully completed structural clearance tests, as well as most of the load testing Only flights at Mach 1.05 at 10,000 feet, Mach 1.1 at 15,000 feet, and Mach 1.2 at 20,000 feet remained. During the next flight, on February 4, an instrumentation problem cut short the planned envelope expansion tests. After the problem was corrected, the F-16XL returned to flight status, and on February 18 and 20, flight control and evaluation flights were made. Two more research flights were planned for the following week, but another problem appeared. During the ground start up, project personnel noticed that the leading edge flap moved without being commanded. The Digital Flight Control Computer was sent to the Lockheed-Martin facility at Fort Worth, where the problem was traced to a defective chip in the computer. After it was replaced, the F-16XL #1 flew a highly successful flight controls and handling qualities evaluation flight on March 26, clearing the way for the final tests. The final limited loads expansion flight occurred on March 31, and was fully successful. As a result, the on-site Lockheed-Martin loads engineer cleared the aircraft to Mach 1.8. The remaining two handling qualities and flight control evaluation flights were both made on April 3, 1998. These three flights concluded the flight test portion of the DFCS upgrade.

  20. Oral microflora in preschool children attending a fluoride varnish program

    DEFF Research Database (Denmark)

    Anderson, Maria; Grindefjord, Margaret; Dahllöf, Göran

    2016-01-01

    hundred seven 3-year-old children were enrolled from a cohort of 3403 preschool children taking part in a community based oral health project. Two hundred sixty-three of them had attended caries-preventive program with semi-annual applications of a fluoride varnish since the age of 1 year (test group......BACKGROUND: To compare the oral microflora in preschool children attending a fluoride varnish program with a reference group receiving a standard oral health program without fluoride varnish applications. A second aim was to relate the microbial composition to the caries prevalence. METHODS: Five......) while 237 had received standard preventive care (reference group). Oral samples were collected with a sterile swab and analysed with checkerboard DNA-DNA hybridization using 12 pre-determined bacterial probes. Caries and background data were collected from clinical examinations and questionnaires...

  1. Sexual Violence Among College Students Attending a Nonresidential Campus.

    Science.gov (United States)

    Solinas-Saunders, Monica

    2018-03-01

    Using the empirical powers of theories of intersectionality, the study investigates the association between students' demographics (such as gender identity, race, ethnicity, age, and socioeconomic status) and sexual violence victimization. An anonymous survey was employed to collect data from a cluster random sample of 966 students attending face-to-face courses at a midsize urban nonresidential campus. The empirical findings suggest that being older and female are the only statistically significant factors in the analysis. As the first attempt to focus on students attending nonresidential programs in the United States, the study presents implications for policy and program implementation to include issues pertinent to students' diversity to better respond to students' risk of victimization.

  2. Determinants of frequent attendance in Danish general practice

    DEFF Research Database (Denmark)

    Jørgensen, Jeanette Therming; Andersen, John Sahl; Tjønneland, Anne

    2016-01-01

    . below recommended level), and hormone therapy in women (1.52; 1.42-1.63) were all significant determinants of frequent attendance. CONCLUSIONS: In addition to pre-existing medical conditions, gender, socio-demographic and gender-specific factors, lifestyle (obesity, smoking, exercise and alcohol use.......57-0.69, >4 years higher education vs. no vocational training) and employment (0.61; 0.57-0.65) were inversely associated with frequent attendance. Finally, obesity (1.54; 1.14-2.08), smoking (1.21; 1.12-1.30, current vs. never), physical activity (0.84; 0.80-89), alcohol consumption (0.83; 0.78-0.87 above vs...

  3. An Investigation of Creativity Among Children Attending Preschools

    Directory of Open Access Journals (Sweden)

    Zuhal Gizir Ergen

    2012-04-01

    Full Text Available The purpose of this study is to investigate creativity among children attending preschools in terms of several variables. The study was conducted with 72 female and 63 male 5-year-old (60-72 months children selected from independent preschools related to the Turkish Ministry of National Education in Ankara. The “General Information Form” was administered to children in order to collect basic information about children and their parents. To determine creativity among children, the “Torrence Creative Thinking Test” developed by Torrence in 1966 and translated into Turkish by Aslan (1999 was used. Mann-Whitney U and Kruskall-Wallis H tests were used to analyze data. As a result of the study, gender and father’s educational level do not affect creativity scores of the children, yet duration of preschool attendance and mother’s educational level statistically have a significant effect on their creativity scores (p<.05.

  4. What drives bikers to attend a motorcycling event?

    Directory of Open Access Journals (Sweden)

    Martinette Kruger

    2014-01-01

    Full Text Available Africa Bike Week, considered South Africa’s premier biking event, attracts large numbers of bikers, especially Harley-Davidson bikers, and bike enthusiasts from across the country. This study investigated these visitors and clustered them based on their motives for attending the event. As background to the study, we provide a broad survey of the literature on what motivates people to attend motorcycling events. Motorcycle tourism has received international research attention, especially in the US, but to date has been neglected in South Africa. Our study helps to fill this gap, particularly as regards biker and attendee characteristics. We found that three distinct market segments can be identified at the event; each one being motivated by a different set of motives. Recommendations are made to attract, retain and expand each segment. Event organisers can also use this information to expand motorcycle tourism in South Africa.

  5. TEACHING, COEXISTENCE AND ATTENDANCE AT A TECHNOLOGICAL HIGH SCHOOL

    Directory of Open Access Journals (Sweden)

    Leticia Carranza-Peña

    2015-01-01

    Full Text Available This article, which stems from ethnographic research, shows the importance of faculty intervention in the classroom setting in encouraging student attendance. Our findings indicate that the habitus the educator establishes can either encourage youth to continue their studies, or lead them to drop out, thus placing them at risk of addictions, illegal activities, unemployment or low-paid jobs. The Pedagogy of Hope therefore provides an option for effecting large-scale changes in personal, school, family, community and socio-economic conditions. The paper’s conclusions include providing training to teaching faculties on coexistence issues; ensuring coordination between school and family, and emphasizing an integral approach to education as means of promoting school attendance.

  6. Free Flight Ground Testing of ADEPT in Advance of the Sounding Rocket One Flight Experiment

    Science.gov (United States)

    Smith, B. P.; Dutta, S.

    2017-01-01

    The Adaptable Deployable Entry and Placement Technology (ADEPT) project will be conducting the first flight test of ADEPT, titled Sounding Rocket One (SR-1), in just two months. The need for this flight test stems from the fact that ADEPT's supersonic dynamic stability has not yet been characterized. The SR-1 flight test will provide critical data describing the flight mechanics of ADEPT in ballistic flight. These data will feed decision making on future ADEPT mission designs. This presentation will describe the SR-1 scientific data products, possible flight test outcomes, and the implications of those outcomes on future ADEPT development. In addition, this presentation will describe free-flight ground testing performed in advance of the flight test. A subsonic flight dynamics test conducted at the Vertical Spin Tunnel located at NASA Langley Research Center provided subsonic flight dynamics data at high and low altitudes for multiple center of mass (CoM) locations. A ballistic range test at the Hypervelocity Free Flight Aerodynamics Facility (HFFAF) located at NASA Ames Research Center provided supersonic flight dynamics data at low supersonic Mach numbers. Execution and outcomes of these tests will be discussed. Finally, a hypothesized trajectory estimate for the SR-1 flight will be presented.

  7. Flight performance of Galileo and Ulysses RTGs

    International Nuclear Information System (INIS)

    Hemler, R.J.; Kelly, C.E.

    1993-01-01

    Flight performance data of the GPHS-RTGs (General Purpose Heat Source---Radioisotope Thermoelectric Generators) on the Galileo and Ulysses spacecraft are reported. Comparison of the flight data with analytical predictions is preformed. Differences between actual flight telemetry data and analytical predictions are addressed including the degree of uncertainty associated with the telemetry data. End of mission power level predictions are included for both missions with an overall assessment of RTG mission performances

  8. Numerical simulation of hypersonic flight experiment vehicle

    OpenAIRE

    Yamamoto, Yukimitsu; Yoshioka, Minako; 山本 行光; 吉岡 美菜子

    1994-01-01

    Hypersonic aerodynamic characteristics of Hypersonic FLight EXperiment (HYFLEX vehicle were investigated by numerical simulations using Navier-Stokes CFD (Computational Fluid Dynamics) code of NAL. Numerical results were compared with experimental data obtained at Hypersonic Wind Tunnel at NAL. In order to investigate real flight aerodynamic characteristics. numerical calculations corresponding to the flight conditions suffering from maximum aero thermodynamic heating were also made and the d...

  9. Flight Test Approach to Adaptive Control Research

    Science.gov (United States)

    Pavlock, Kate Maureen; Less, James L.; Larson, David Nils

    2011-01-01

    The National Aeronautics and Space Administration s Dryden Flight Research Center completed flight testing of adaptive controls research on a full-scale F-18 testbed. The validation of adaptive controls has the potential to enhance safety in the presence of adverse conditions such as structural damage or control surface failures. This paper describes the research interface architecture, risk mitigations, flight test approach and lessons learned of adaptive controls research.

  10. Theseus First Flight - May 24, 1996

    Science.gov (United States)

    1996-01-01

    The Theseus prototype research aircraft shows off its high aspect-ratio wing as it lifts off from Rogers Dry Lake during its first test flight from NASA's Dryden Flight Research Center, Edwards, California, on May 24, 1996. The Theseus aircraft, built and operated by Aurora Flight Sciences Corporation, Manassas, Virginia, was a unique aircraft flown at NASA's Dryden Flight Research Center, Edwards, California, under a cooperative agreement between NASA and Aurora. Dryden hosted the Theseus program, providing hangar space and range safety for flight testing. Aurora Flight Sciences was responsible for the actual flight testing, vehicle flight safety, and operation of the aircraft. The Theseus remotely piloted aircraft flew its maiden flight on May 24, 1996, at Dryden. During its sixth flight on November 12, 1996, Theseus experienced an in-flight structural failure that resulted in the loss of the aircraft. As of the beginning of the year 2000, Aurora had not rebuilt the aircraft. Theseus was built for NASA under an innovative, $4.9 million fixed-price contract by Aurora Flight Sciences Corporation and its partners, West Virginia University, Morgantown, West Virginia, and Fairmont State College, Fairmont, West Virginia. The twin-engine, unpiloted vehicle had a 140-foot wingspan, and was constructed largely of composite materials. Powered by two 80-horsepower, turbocharged piston engines that drove twin 9-foot-diameter propellers, Theseus was designed to fly autonomously at high altitudes, with takeoff and landing under the active control of a ground-based pilot in a ground control station 'cockpit.' With the potential ability to carry 700 pounds of science instruments to altitudes above 60,000 feet for durations of greater than 24 hours, Theseus was intended to support research in areas such as stratospheric ozone depletion and the atmospheric effects of future high-speed civil transport aircraft engines. Instruments carried aboard Theseus also would be able to

  11. Theseus Waits on Lakebed for First Flight

    Science.gov (United States)

    1996-01-01

    The Theseus prototype remotely-piloted aircraft (RPA) waits on the lakebed before its first test flight from NASA's Dryden Flight Research Center, Edwards, California, on May 24, 1996. The Theseus aircraft, built and operated by Aurora Flight Sciences Corporation, Manassas, Virginia, was a unique aircraft flown at NASA's Dryden Flight Research Center, Edwards, California, under a cooperative agreement between NASA and Aurora. Dryden hosted the Theseus program, providing hangar space and range safety for flight testing. Aurora Flight Sciences was responsible for the actual flight testing, vehicle flight safety, and operation of the aircraft. The Theseus remotely piloted aircraft flew its maiden flight on May 24, 1996, at Dryden. During its sixth flight on November 12, 1996, Theseus experienced an in-flight structural failure that resulted in the loss of the aircraft. As of the beginning of the year 2000, Aurora had not rebuilt the aircraft. Theseus was built for NASA under an innovative, $4.9 million fixed-price contract by Aurora Flight Sciences Corporation and its partners, West Virginia University, Morgantown, West Virginia, and Fairmont State College, Fairmont, West Virginia. The twin-engine, unpiloted vehicle had a 140-foot wingspan, and was constructed largely of composite materials. Powered by two 80-horsepower, turbocharged piston engines that drove twin 9-foot-diameter propellers, Theseus was designed to fly autonomously at high altitudes, with takeoff and landing under the active control of a ground-based pilot in a ground control station 'cockpit.' With the potential ability to carry 700 pounds of science instruments to altitudes above 60,000 feet for durations of greater than 24 hours, Theseus was intended to support research in areas such as stratospheric ozone depletion and the atmospheric effects of future high-speed civil transport aircraft engines. Instruments carried aboard Theseus also would be able to validate satellite-based global environmental

  12. High prevalence of frequent attendance in the over 65s.

    Science.gov (United States)

    McMahon, C Geraldine; Power Foley, Megan; Robinson, David; O'Donnell, Kate; Poulton, Miriam; Kenny, Rose A; Bennett, Kathleen

    2018-02-01

    Characteristics of older frequent users of Emergency Departments (EDs) are poorly understood. Our aim was to examine the characteristics of the ED frequent attenders (FAs) by age (under 65 and over 65 years). We examined the prevalence of FA attending the ED of an Urban Teaching Hospital in a cross-sectional study between 2009 and 2011. FA was defined as an individual who presented to the ED four or more times over a 12-month period. Randomly selected groups of FA and non-FA from two age groups (under 65 and over 65 years) were then examined to compare the characteristics between older FAs and non-FAs and older FAs and younger FAs. Logistic regression was used to calculate the odds ratio and 95% confidence intervals for 12-month mortality in FA compared with non-FA aged at least 65 years. Overall, 137 150 ED attendances were recorded between 2009 and 2011. A total of 21.6% were aged at least 65 years, 4.4% of whom were FAs, accounting for 18.4% of attendances by patients older than 65 years. There was a bimodal age distribution of FA (mean±SD; under 65 years 40±12.7; and over 65 years 76.9±7.4). Older FAs were five times more likely to present outside normal working hours and 5.5 times more likely to require admission. Cardiovascular emergencies were the most common complaint, in contrast with the younger FA group, where injury and psychosocial conditions dominated. The odds ratio for death at 12 months was 2.07 (95% confidence interval 0.93-4.63; P=0.07), adjusting for age and sex. One-in-five ED patients older than 65 years of age are FAs. Older FAs largely present with complex medical conditions. Enhanced access to expert gerontology assessment should be considered as part of effective intervention strategies for older ED users.

  13. Obstetric complications: does training traditional birth attendants make a difference?

    Directory of Open Access Journals (Sweden)

    Patricia E. Bailey

    2002-01-01

    Full Text Available Objective. To assess the effect that a training intervention for traditional birth attendants (TBAs in Guatemala had on the detection of obstetric complications, the referral of patients with complications to the formal health care system, and, ultimately, those patients' utilization of essential obstetric care services. Methods. Using a quasi-experimental design, a surveillance system of births was implemented to collect population-based information from 3 518 women between 1990 and 1993. All women were interviewed postpartum by physicians. There were three key independent variables in our study: 1 geographical area (intervention community and non-intervention community, 2 time in relation to the training intervention (before or after, and 3 presence or absence of a TBA at the time of the complication. The key dependent variables for women interviewed were 1 development of an obstetric complication, 2 detection of the problem by the TBA, 3 referral to a health facility, 4 compliance with referral, and 5 use of services. Results. The incidence of postpartum complications decreased after the intervention, controlling for intervention community. On the other hand, after the intervention TBAs were less likely to recognize most maternal complications, and referral rates did not increase significantly. The likelihood of using health care services increased six-fold among women who were not attended by TBAs, and no increase was observed among those who were attended by TBAs. Conclusion. Training TBAs may have had a positive effect on the rate, detection, and referral of postpartum complications. However, the evidence is less convincing for overall increases in the detection of complications, in referral to the formal health care system, and in the utilization of essential obstetric services among women attended by TBAs.

  14. Profile and birthing practices of Maranao traditional birth attendants

    OpenAIRE

    Maghuyop-Butalid, Roselyn; Mayo, Norhanifa A; Polangi, Hania T

    2015-01-01

    Roselyn Maghuyop-Butalid, Norhanifa A Mayo, Hania T Polangi College of Nursing, Mindanao State University-Iligan Institute of Technology, Iligan City, Philippines Abstract: This study determined the profile and birthing practices in both modern and traditional ways among Maranao traditional birth attendants (TBAs) in Lanao del Norte, Philippines. It employed a descriptive research design. The respondents were 50 Maranao TBAs selected through the snowball sampling technique. A quest...

  15. On a mission: training traditional birth attendants in Ethiopia.

    Science.gov (United States)

    Ciolino, Alice

    2011-06-01

    Alice Ciolino, a midwife from London spent eight months in Ethiopia with Doctors of the World. Her mission was to train Traditional Birth Attendants (TBAs). Based in the Somali region of Ethiopia, access to healthcare facilities was limited; indeed Kebri Dehar had the only hospital in the region. Here Alice shares her experience of what it is like to live and work in a remote part of the world, far from the medical facilities we take for granted in the West.

  16. Birth Order, Child Labor and School Attendance in Brazil

    OpenAIRE

    Patrick M. Emerson; Andre Portela Souza

    2002-01-01

    This paper examines the effects of birth order on the child labor incidence and school attendance of Brazilian children. Evidence from the psychology and sociology literature suggests that earlier-born children tend to have higher innate abilities. The economic implications of these findings are that earlier-born children may have more intra-household resources directed to them when they are young, and better outcomes as adults in areas such as education and earnings. However, in the context ...

  17. Students attendance monitoring using near field communication technology

    OpenAIRE

    Stakėnas, Tautvydas

    2017-01-01

    Today, near field communication technology (NFC) is one of the most popular automatic identification technologies. There is a lot of research and development in this area trying to make as much use of this technology as possible, and in coming years many new applications and research areas will continue to appear. In this paper the author examines NFC technology application for student’s attendance monitoring. In the first part of the thesis NFC uses, application methods and security levels a...

  18. Advanced in-flight measurement techniques

    CERN Document Server

    Lawson, Nicholas; Jentink, Henk; Kompenhans, Jürgen

    2013-01-01

    The book presents a synopsis of the main results achieved during the 3 year EU-project "Advanced Inflight Measurement Techniques (AIM)" which applied advanced image based measurement techniques to industrial flight testing. The book is intended to be not only an overview on the AIM activities but also a guide on the application of advanced optical measurement techniques for future flight testing. Furthermore it is a useful guide for engineers in the field of experimental methods and flight testing who face the challenge of a future requirement for the development of highly accurate non-intrusive in-flight measurement techniques.

  19. Flight Operations . [Zero Knowledge to Mission Complete

    Science.gov (United States)

    Forest, Greg; Apyan, Alex; Hillin, Andrew

    2016-01-01

    Outline the process that takes new hires with zero knowledge all the way to the point of completing missions in Flight Operations. Audience members should be able to outline the attributes of a flight controller and instructor, outline the training flow for flight controllers and instructors, and identify how the flight controller and instructor attributes are necessary to ensure operational excellence in mission prep and execution. Identify how the simulation environment is used to develop crisis management, communication, teamwork, and leadership skills for SGT employees beyond what can be provided by classroom training.

  20. Intelligent Flight Control Simulation Research Program

    National Research Council Canada - National Science Library

    Stolarik, Brian

    2007-01-01

    ...). Under the program, entitled "Intelligent Flight Control Simulation Research Laboratory," a variety of technologies were investigated or developed during the course of the research for AFRL/VAC...

  1. Time Manager Software for a Flight Processor

    Science.gov (United States)

    Zoerne, Roger

    2012-01-01

    Data analysis is a process of inspecting, cleaning, transforming, and modeling data to highlight useful information and suggest conclusions. Accurate timestamps and a timeline of vehicle events are needed to analyze flight data. By moving the timekeeping to the flight processor, there is no longer a need for a redundant time source. If each flight processor is initially synchronized to GPS, they can freewheel and maintain a fairly accurate time throughout the flight with no additional GPS time messages received. How ever, additional GPS time messages will ensure an even greater accuracy. When a timestamp is required, a gettime function is called that immediately reads the time-base register.

  2. SELF WOUND MANAGEMENT PRACTICES BEFORE ATTENDING ANTIRABIES VACCINE CLINIC

    Directory of Open Access Journals (Sweden)

    Amit Kumar Mishra, Smita Panda, Prakash Chandra Panda

    2015-07-01

    Full Text Available Introduction: In INDIA almost 20000 people die (40% of world death each year from rabies. Most of these deaths could be prevented by post exposure prophylaxis with wound washing, rabies immunoglobulin & vaccination. Local wound management alone can reduce viral load by up to 80%. Objective: To study self-wound management practices in animal exposure patients before attending a tertiary level ARV clinic. Methodology: Data regarding wound management was collected by individual interview of patients attending the ARV clinic during OCT 2011 to MAR 2012. The data collected in the form of a questionnaire. Analysis of data was done in the Department Of Community Medicine, V.S.S. Medical College, Burla. Results: Total 493 cases of animal exposure were attended during the study period. Most common biting animal was dog (94.5%. 31% of cases were under the age of 10 years & 23% belongs to the age of 10-19 years. Male to female ratio was 3:1. Most of the cases (91% were of category III exposure. Immediate management of wound was practiced by 63-77% of cases before visiting ARV clinic; only 2% wash the wound with running water & soap for 15 minutes. 39% of cases applied Dettol/savlon at the wound side & other 38% applied turmeric, red chilli, kerosene, Band-Aid & ghee locally. Most cases (61% reported to ARV clinic within 24hours.

  3. Delivery practices of traditional birth attendants in Dhaka slums, Bangladesh.

    Science.gov (United States)

    Fronczak, N; Arifeen, S E; Moran, A C; Caulfield, L E; Baqui, A H

    2007-12-01

    This paper describes associations among delivery-location, training of birth attendants, birthing practices, and early postpartum morbidity in women in slum areas of Dhaka, Bangladesh. During November 1993-May 1995, data on delivery-location, training of birth attendants, birthing practices, delivery-related complications, and postpartum morbidity were collected through interviews with 1,506 women, 489 home-based birth attendants, and audits in 20 facilities where the women from this study gave birth. Associations among maternal characteristics, birth practices, delivery-location, and early postpartum morbidity were specifically explored. Self-reported postpartum morbidity was associated with maternal characteristics, delivery-related complications, and some birthing practices. Dais with more experience were more likely to use potentially-harmful birthing practices which increased the risk of postpartum morbidity among women with births at home. Postpartum morbidity did not differ by birth-location. Safe motherhood programmes must develop effective strategies to discourage potentially-harmful home-based delivery practices demonstrated to contribute to morbidity.

  4. Factors Associated with Routine Dental Attendance among Aboriginal Australians.

    Science.gov (United States)

    Amarasena, Najith; Kapellas, Kostas; Skilton, Michael R; Maple-Brown, Louise J; Brown, Alex; Bartold, Mark; O'Dea, Kerin; Celermajer, David; Jamieson, Lisa M

    2016-01-01

    To determine factors associated with routine dental attendance in Aboriginal Australians. Data of 271 Aboriginal adults residing in Australia's Northern Territory were used. Routine dental attendance was defined as last visiting a dentist less than one year ago or visiting a dentist for a check-up. Both bivariate and multivariable analytical techniques were used. While 27% visited a dentist in the past year, 29% of these visited for a check-up. In bivariate analysis, being female, low psychological distress, and low clinical attachment loss (CAL) were associated with visiting a dentist within last year. Being aged younger than 39 years, male, no oral health impairment, being caries-free, low CAL, and low apolipoprotein B were associated with visiting for a check-up. Clinical attachment loss remained associated with visiting a dentist less than one year ago while being younger than 39 years and having no oral health impairment remained associated with usually visiting for a check-up in multivariable analysis. Younger age, no oral health impairment, and low CAL were associated with routine dental attendance among Indigenous Australians.

  5. Problematic Online Pornography Use: A Media Attendance Perspective.

    Science.gov (United States)

    Sirianni, Joseph M; Vishwanath, Arun

    2016-01-01

    Since the rise of the popularity of the Internet, the accessibility of pornography has been a growing concern. One particular concern is the potential risk for addictive behaviors to occur as a result of the ease of viewing online pornographic material. The research presented herein explored online pornography addiction using a media attendance perspective, which allows media critics to examine the needs that people seek to fulfill from engaging with various media. Past studies that have used a media attendance perspective to explore media addiction, rephrased here as problematic media use, have done so using social cognitive theory and the concept of deficient self-regulation. Deficient self-regulation may be experienced by all media consumers and can range from normally impulsive media choices to pathological media choices which may result in detrimental life consequences. Borrowing from this, the current study reevaluated online pornography addiction using deficient self-regulation within a sociocognitive framework of media attendance. Results of our model show deficient self-regulation influences habitual online pornography consumption. Moreover, online pornography use motivated by social needs is perpetuated by deficient self-regulation and may lead to negative life consequences in some individuals. These findings contribute a new perspective and framework for understanding problematic online pornography use.

  6. Neural responses to complex auditory rhythms: the role of attending

    Directory of Open Access Journals (Sweden)

    Heather L Chapin

    2010-12-01

    Full Text Available The aim of this study was to explore the role of attention in pulse and meter perception using complex rhythms. We used a selective attention paradigm in which participants attended to either a complex auditory rhythm or a visually presented word list. Performance on a reproduction task was used to gauge whether participants were attending to the appropriate stimulus. We hypothesized that attention to complex rhythms – which contain no energy at the pulse frequency – would lead to activations in motor areas involved in pulse perception. Moreover, because multiple repetitions of a complex rhythm are needed to perceive a pulse, activations in pulse related areas would be seen only after sufficient time had elapsed for pulse perception to develop. Selective attention was also expected to modulate activity in sensory areas specific to the modality. We found that selective attention to rhythms led to increased BOLD responses in basal ganglia, and basal ganglia activity was observed only after the rhythms had cycled enough times for a stable pulse percept to develop. These observations suggest that attention is needed to recruit motor activations associated with the perception of pulse in complex rhythms. Moreover, attention to the auditory stimulus enhanced activity in an attentional sensory network including primary auditory, insula, anterior cingulate, and prefrontal cortex, and suppressed activity in sensory areas associated with attending to the visual stimulus.

  7. 14 CFR 91.1095 - Initial and transition training and checking: Flight instructors (aircraft), flight instructors...

    Science.gov (United States)

    2010-01-01

    ... instructor certificate— (i) The fundamental principles of the teaching-learning process; (ii) Teaching... Management § 91.1095 Initial and transition training and checking: Flight instructors (aircraft), flight...

  8. 14 CFR 61.41 - Flight training received from flight instructors not certificated by the FAA.

    Science.gov (United States)

    2010-01-01

    ... the FAA. (a) A person may credit flight training toward the requirements of a pilot certificate or... flight instructor described in paragraph (a) of this section is only authorized to give endorsements to...

  9. Advanced transport operating system software upgrade: Flight management/flight controls software description

    Science.gov (United States)

    Clinedinst, Winston C.; Debure, Kelly R.; Dickson, Richard W.; Heaphy, William J.; Parks, Mark A.; Slominski, Christopher J.; Wolverton, David A.

    1988-01-01

    The Flight Management/Flight Controls (FM/FC) software for the Norden 2 (PDP-11/70M) computer installed on the NASA 737 aircraft is described. The software computes the navigation position estimates, guidance commands, those commands to be issued to the control surfaces to direct the aircraft in flight based on the modes selected on the Advanced Guidance Control System (AGSC) mode panel, and the flight path selected via the Navigation Control/Display Unit (NCDU).

  10. Flight Muscle Dimorphism and Heterogeneity in Flight Initiation of Field-Collected Triatoma infestans (Hemiptera: Reduviidae)

    OpenAIRE

    Gurevitz, Juan M.; Kitron, Uriel; Gürtler, Ricardo E.

    2007-01-01

    Recent experiments demonstrated that most field-collected Triatoma infestans (Klug) (Hemiptera: Reduviidae) adults from northern Argentina either never initiated flight or did so repeatedly in both sexes. This pattern could not be explained by sex, adult age, weight, weight-to-length ratio (W/L), or chance. We examined whether bugs that never initiated flight possessed developed flight muscles, and whether flight muscle mass relative to total body mass (FMR) was related to the probability of ...

  11. Echocardiography in the flight program

    Science.gov (United States)

    Charles, John B.; Bungo, Michael W.; Mulvagh, Sharon L.

    1991-01-01

    Observations on American and Soviet astronauts have documented the association of changes in cardiovascular function during orthostasis with space flight. A basic understanding of the cardiovascular changes occurring in astronauts requires the determination of cardiac output and total peripheral vascular resistance as a minimum. In 1982, we selected ultrasound echocardiography as our means of acquiring this information. Ultrasound offers a quick, non-invasive and accurate means of determining stroke volume which, when combined with the blood pressure and heart rate measurements of the stand test, allows calculation of changes in peripheral vascular resistance, the body's major response to orthostatic stress. The history of echocardiography in the Space Shuttle Program is discussed and the results are briefly presented.

  12. The Aerodynamics of Frisbee Flight

    Directory of Open Access Journals (Sweden)

    Kathleen Baumback

    2010-01-01

    Full Text Available This project will describe the physics of a common Frisbee in flight. The aerodynamic forces acting on the Frisbee are lift and drag, with lift being explained by Bernoulli‘s equation and drag by the Prandtl relationship. Using V. R. Morrison‘s model for the 2-dimensional trajectory of a Frisbee, equations for the x- and y- components of the Frisbee‘s motion were written in Microsoft Excel and the path of the Frisbee was illustrated. Variables such as angle of attack, area, and attack velocity were altered to see their effect on the Frisbee‘s path and to speculate on ways to achieve maximum distance and height.

  13. Flight Telerobotic Servicer prototype simulator

    Science.gov (United States)

    Schein, Rob; Krauze, Linda; Hartley, Craig; Dickenson, Alan; Lavecchia, Tom; Working, Bob

    A prototype simulator for the Flight Telerobotic Servicer (FTS) system is described for use in the design development of the FTS, emphasizing the hand controller and user interface. The simulator utilizes a graphics workstation based on rapid prototyping tools for systems analyses of the use of the user interface and the hand controller. Kinematic modeling, manipulator-control algorithms, and communications programs are contained in the software for the simulator. The hardwired FTS panels and operator interface for use on the STS Orbiter are represented graphically, and the simulated controls function as the final FTS system configuration does. The robotic arm moves based on the user hand-controller interface, and the joint angles and other data are given on the prototype of the user interface. This graphics simulation tool provides the means for familiarizing crewmembers with the FTS system operation, displays, and controls.

  14. STS-72 Flight Day 2

    Science.gov (United States)

    1996-01-01

    On this second day of the STS-72 mission, the flight crew, Cmdr. Brian Duffy, Pilot Brent W. Jett, and Mission Specialists Leroy Chiao, Daniel T. Barry, Winston E. Scott, and Koichi Wakata (NASDA), awakened to music from the motion picture 'Star Wars.' The crew performed a systems checkout, prepared for the retrieval of the Japanese Space Flyer Unit (SFU), tested the spacesuits for the EVA, and activated some of the secondary experiments. An in-orbit news interview was conducted with the crew via satellite downlinking. Questions asked ranged from the logistics of the mission to the avoidance procedures the Endeavour Orbiter performed to miss hitting the inactive Air Force satellite, nicknamed 'Misty' (MSTI). Earth views included cloud cover, several storm systems, and various land masses with several views of the shuttle's open cargo bay in the foreground.

  15. Flexible wings in flapping flight

    Science.gov (United States)

    Moret, Lionel; Thiria, Benjamin; Zhang, Jun

    2007-11-01

    We study the effect of passive pitching and flexible deflection of wings on the forward flapping flight. The wings are flapped vertically in water and are allowed to move freely horizontally. The forward speed is chosen by the flapping wing itself by balance of drag and thrust. We show, that by allowing the wing to passively pitch or by adding a flexible extension at its trailing edge, the forward speed is significantly increased. Detailed measurements of wing deflection and passive pitching, together with flow visualization, are used to explain our observations. The advantage of having a wing with finite rigidity/flexibility is discussed as we compare the current results with our biological inspirations such as birds and fish.

  16. Atmospheric radiation flight dose rates

    Science.gov (United States)

    Tobiska, W. K.

    2015-12-01

    Space weather's effects upon the near-Earth environment are due to dynamic changes in the energy transfer processes from the Sun's photons, particles, and fields. Of the domains that are affected by space weather, the coupling between the solar and galactic high-energy particles, the magnetosphere, and atmospheric regions can significantly affect humans and our technology as a result of radiation exposure. Space Environment Technologies (SET) has been conducting space weather observations of the atmospheric radiation environment at aviation altitudes that will eventually be transitioned into air traffic management operations. The Automated Radiation Measurements for Aerospace Safety (ARMAS) system and Upper-atmospheric Space and Earth Weather eXperiment (USEWX) both are providing dose rate measurements. Both activities are under the ARMAS goal of providing the "weather" of the radiation environment to improve aircraft crew and passenger safety. Over 5-dozen ARMAS and USEWX flights have successfully demonstrated the operation of a micro dosimeter on commercial aviation altitude aircraft that captures the real-time radiation environment resulting from Galactic Cosmic Rays and Solar Energetic Particles. The real-time radiation exposure is computed as an effective dose rate (body-averaged over the radiative-sensitive organs and tissues in units of microsieverts per hour); total ionizing dose is captured on the aircraft, downlinked in real-time, processed on the ground into effective dose rates, compared with NASA's Langley Research Center (LaRC) most recent Nowcast of Atmospheric Ionizing Radiation System (NAIRAS) global radiation climatology model runs, and then made available to end users via the web and smart phone apps. Flight altitudes now exceed 60,000 ft. and extend above commercial aviation altitudes into the stratosphere. In this presentation we describe recent ARMAS and USEWX results.

  17. Biosafety in manned space flight

    International Nuclear Information System (INIS)

    De Boever, P.

    2006-01-01

    The main goal of manned exploration is to achieve a prolonged stay in space, for example in an orbital station (such as the International Space Station (ISS)) or in planetary bases on the Moon and/or Mars. It goes without saying that such missions can only be realized when the astronaut's health and well-being is secured. In this respect, the characterization of the microbiological contamination on board spacecraft and orbital stations and the influence of cosmic radiation and microgravity are of paramount importance. Microbial contamination may originate from different sources and includes the initial contamination of space flight materials during manufacturing and assembly, the delivery of supplies to the orbital station, the supplies themselves, secondary contamination during the lifetime of the orbital station, the crew and any other biological material on board e.g. animals, plants, micro-organisms used in scientific experiments. Although most microorganisms do not threaten human health, it has been reported that in a confined environment, such as a space cabin, microorganisms may produce adverse effects on the optimal performance of the space crew and the integrity of the spacecraft or habitat. These effects range from infections, allergies, and toxicities to degradation of air and water supplies. Biodegradation of critical materials may result in system failure and this may jeopardize the crew. The research aims at monitoring the biological airborne and surface contamination during manned space flight. The ISS has been selected as primary test bed for this study. The majority of the investigations are being done by the Russian Institute of Biomedical Problems (IBMP), which is responsible for monitoring the biological contamination in the habitable compartments of the ISS for safety and hygienic reasons. Within the frame of a collaboration between IBMP and the European Space Agency (ESA), SCK-CEN is able to participate in the analyses

  18. Microgravity Flight - Accommodating Non-Human Primates

    Science.gov (United States)

    Dalton, Bonnie P.; Searby, Nancy; Ostrach, Louis

    1994-01-01

    Spacelab Life Sciences-3 (SLS-3) was scheduled to be the first United States man-tended microgravity flight containing Rhesus monkeys. The goal of this flight as in the five untended Russian COSMOS Bion flights and an earlier American Biosatellite flight, was to understand the biomedical and biological effects of a microgravity environment using the non-human primate as human surrogate. The SLS-3/Rhesus Project and COSMOS Primate-BIOS flights all utilized the rhesus monkey, Macaca mulatta. The ultimate objective of all flights with an animal surrogate has been to evaluate and understand biological mechanisms at both the system and cellular level, thus enabling rational effective countermeasures for future long duration human activity under microgravity conditions and enabling technical application to correction of common human physiological problems within earth's gravity, e.g., muscle strength and reloading, osteoporosis, immune deficiency diseases. Hardware developed for the SLS-3/Rhesus Project was the result of a joint effort with the French Centre National d'Etudes Spatiales (CNES) and the United States National Aeronautics and Space Administration (NASA) extending over the last decade. The flight hardware design and development required implementation of sufficient automation to insure flight crew and animal bio-isolation and maintenance with minimal impact to crew activities. A variety of hardware of varying functional capabilities was developed to support the scientific objectives of the original 22 combined French and American experiments, along with 5 Russian co-investigations, including musculoskeletal, metabolic, and behavioral studies. Unique elements of the Rhesus Research Facility (RRF) included separation of waste for daily delivery of urine and fecal samples for metabolic studies and a psychomotor test system for behavioral studies along with monitored food measurement. As in untended flights, telemetry measurements would allow monitoring of

  19. Flight hours within 7 days and risk of fatigue on the civilian pilots in Indonesia

    Directory of Open Access Journals (Sweden)

    febi arya hidayat

    2017-07-01

    Full Text Available Background: In aviation world, fatigue may cause incapacitation among pilot which can lead to aircraft accidents. Flight hours is believed to be one of the factors related to the risk of fatigue. The purpose of this study is to identify relationship between flight hours in seven day and other factors to the risk of fatigue among civilian pilot in Indonesia.Methods: A cross sectional study with consecutive sampling was conducted among civilian pilots who attended medical check-up at Aviation Medical Center in Jakarta on June 2016. Demographic characteristics, employment related factors, habits and flight hours were obtained through questionnaire and interviews. Fatigue data were obtained through fatigue self-questionnaire form and measured with Fatigue Severity Scale which had been validated. Fatigue was categorized into non-fatigue (FSS score <36 and fatigue (FSS score ≥36. Relative risk was computed using Cox regression with a constant time.Results: This study included 542 pilots among which 50.2% had fatigue. The subjects who have flight hours >30 hours/week compared to ≤30 hours/week, had 1.37-fold higher risk of fatigue [adjusted relative risk [RRa=1.37; CI=1.14-1.65; p=0.001]. The subject with ATPL license compared to CPL license had 1.28-fold higher risk of fatigue [RRa=1.31; CI=1.11-1.54; p=0.001. Furthermore, subjects who have appropriate exercise had 32% lower risk of fatigue (RRa=0.68; CI= 0.39-1.19; p=0.094.Conclusions: Civilian pilots in Indonesia who had more than 30 hours flight time in 7 days and ATPL type pilots have an increased risk of fatigue. Appropriate exercise decreased the risk of fatigue.Keywords: fatigue, flight hours. civilian pilots. Indonesia

  20. Selected Flight Test Results for Online Learning Neural Network-Based Flight Control System

    Science.gov (United States)

    Williams-Hayes, Peggy S.

    2004-01-01

    The NASA F-15 Intelligent Flight Control System project team developed a series of flight control concepts designed to demonstrate neural network-based adaptive controller benefits, with the objective to develop and flight-test control systems using neural network technology to optimize aircraft performance under nominal conditions and stabilize the aircraft under failure conditions. This report presents flight-test results for an adaptive controller using stability and control derivative values from an online learning neural network. A dynamic cell structure neural network is used in conjunction with a real-time parameter identification algorithm to estimate aerodynamic stability and control derivative increments to baseline aerodynamic derivatives in flight. This open-loop flight test set was performed in preparation for a future phase in which the learning neural network and parameter identification algorithm output would provide the flight controller with aerodynamic stability and control derivative updates in near real time. Two flight maneuvers are analyzed - pitch frequency sweep and automated flight-test maneuver designed to optimally excite the parameter identification algorithm in all axes. Frequency responses generated from flight data are compared to those obtained from nonlinear simulation runs. Flight data examination shows that addition of flight-identified aerodynamic derivative increments into the simulation improved aircraft pitch handling qualities.

  1. Apollo experience report: Development flight instrumentation. [telemetry equipment for space flight test program

    Science.gov (United States)

    Farmer, N. B.

    1974-01-01

    Development flight instrumentation was delivered for 25 Apollo vehicles as Government-furnished equipment. The problems and philosophies of an activity that was concerned with supplying telemetry equipment to a space-flight test program are discussed. Equipment delivery dates, system-design details, and flight-performance information for each mission also are included.

  2. 76 FR 16236 - Prohibition Against Certain Flights Within the Tripoli (HLLL) Flight Information Region (FIR)

    Science.gov (United States)

    2011-03-23

    ... Tripoli (HLLL) Flight Information Region (FIR) AGENCY: Federal Aviation Administration (FAA), Department... the Tripoli (HLLL) Flight Information Region (FIR) by all U.S. air carriers; U.S. commercial operators...) Flight Information Region (FIR). (a) Applicability. This section applies to the following persons: (1...

  3. 78 FR 66261 - Certified Flight Instructor Flight Reviews; Recent Pilot in Command Experience; Airmen Online...

    Science.gov (United States)

    2013-11-05

    ...-0780; Amdt. No. 61-131] RIN 2120-AK23 Certified Flight Instructor Flight Reviews; Recent Pilot in Command Experience; Airmen Online Services; Confirmation of Effective Date AGENCY: Federal Aviation...-calendar month flight review requirements. This rule also clarifies that the generally applicable recent...

  4. 78 FR 56822 - Certified Flight Instructor Flight Reviews; Recent Pilot in Command Experience; Airmen Online...

    Science.gov (United States)

    2013-09-16

    ...-0780; Amdt. No. 61-131] RIN 2120-AK23 Certified Flight Instructor Flight Reviews; Recent Pilot in Command Experience; Airmen Online Services AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... review requirements. This rule also clarifies that the generally applicable recent flight experience...

  5. Investigating Flight with a Toy Helicopter

    Science.gov (United States)

    Liebl, Michael

    2010-01-01

    Flight fascinates people of all ages. Recent advances in battery technology have extended the capabilities of model airplanes and toy helicopters. For those who have never outgrown a childhood enthusiasm for the wonders of flight, it is possible to buy inexpensive, remotely controlled planes and helicopters. A toy helicopter offers an opportunity…

  6. High Flight. Aerospace Activities, K-12.

    Science.gov (United States)

    Oklahoma State Dept. of Education, Oklahoma City.

    Following discussions of Oklahoma aerospace history and the history of flight, interdisciplinary aerospace activities are presented. Each activity includes title, concept fostered, purpose, list of materials needed, and procedure(s). Topics include planets, the solar system, rockets, airplanes, air travel, space exploration, principles of flight,…

  7. Maneuver of Spinning Rocket in Flight

    OpenAIRE

    HAYAKAWA, Satio; ITO, Koji; MATSUI, Yutaka; NOGUCHI, Kunio; UESUGI, Kuninori; YAMASHITA, Kojun

    1980-01-01

    A Yo-despin device successfully functioned to change in flight the precession axis of a sounding rocket for astronomical observation. The rocket attitudes before and after yodespin were measured with a UV star sensor, an infrared horizon sensor and an infrared telescope. Instrumentation and performance of these devices as well as the attitude data during flight are described.

  8. Design techniques for mutlivariable flight control systems

    Science.gov (United States)

    1981-01-01

    Techniques which address the multi-input closely coupled nature of advanced flight control applications and digital implementation issues are described and illustrated through flight control examples. The techniques described seek to exploit the advantages of traditional techniques in treating conventional feedback control design specifications and the simplicity of modern approaches for multivariable control system design.

  9. 75 FR 7345 - Filtered Flight Data

    Science.gov (United States)

    2010-02-19

    ... digital flight data recorder regulations affecting certain air carriers and operators. This final rule prohibits the filtering of some original flight recorder sensor signals unless a certificate holder can show... A. Verna, Avionics Systems Branch, Aircraft Certification Service, AIR-130, Federal Aviation...

  10. Simulation of the Physics of Flight

    Science.gov (United States)

    Lane, W. Brian

    2013-01-01

    Computer simulations continue to prove to be a valuable tool in physics education. Based on the needs of an Aviation Physics course, we developed the PHYSics of FLIght Simulator (PhysFliS), which numerically solves Newton's second law for an airplane in flight based on standard aerodynamics relationships. The simulation can be used to pique…

  11. Habitability and Behavioral Issues of Space Flight.

    Science.gov (United States)

    Stewart, R. A., Jr.

    1988-01-01

    Reviews group behavioral issues from past space missions and simulations such as the Skylab Medical Experiments Altitude Test, Skylab missions, and Shuttle Spacelab I mission. Makes recommendations for future flights concerning commandership, crew selection, and ground-crew communications. Pre- and in-flight behavioral countermeasures are…

  12. Life-critical digital flight control systems

    Science.gov (United States)

    Mcwha, James

    1990-01-01

    Digital autopilot systems were first used on commercial airplanes in the late 1970s. The A-320 airplane was the first air transport airplane with a fly-by-wire primary flight control system. On the 767-X (777) airplane Boeing will install all fly-by-wire flight controls. Activities related to safety, industry status and program phases are discussed.

  13. 14 CFR 61.56 - Flight review.

    Science.gov (United States)

    2010-01-01

    ... altitude, in lieu of the 1 hour of flight training required in paragraph (a) of this section. (c) Except as... flight training and 1 hour of ground training. The review must include: (1) A review of the current... of ground training specified in paragraph (a) of this section. (g) A student pilot need not...

  14. Cryogenic fluid management program flight concept definition

    Science.gov (United States)

    Kroeger, Erich

    1987-01-01

    The Lewis Research Center's cryogenic fluid management program flight concept definition is presented in viewgraph form. Diagrams are given of the cryogenic fluid management subpallet and its configuration with the Delta launch vehicle. Information is given in outline form on feasibility studies, requirements definition, and flight experiments design.

  15. A Decentralized Approach to Formation Flight Routing

    NARCIS (Netherlands)

    Visser, H.G.; Lopes dos Santos, Bruno F.; Verhagen, C.M.A.

    2016-01-01

    This paper describes the development of an optimization-based cooperative planning system for the efficient routing and scheduling of flight formations. This study considers the use of formation flight as a means to reduce the overall fuel consumption of civil aviation in long-haul operations. It

  16. Dosimetric system for prolonged manned flights

    International Nuclear Information System (INIS)

    Akatov, Yu.A.; Kovalev, E.E.; Sakovich, V.A.; Deme, Sh.; Fekher, I.; Nguen, V.D.

    1991-01-01

    Comments for the All-Union state standard 25645.202-83 named Radiation safety of a spacecraft crew during space flight. Requirements for personnel dosimetric control, are given. Devices for the dosimetric control used in manned space flights nowadays are reviewed. The performance principle and structure of the FEDOR dosimetric complex under development are discussed

  17. F-15 IFCS: Intelligent Flight Control System

    Science.gov (United States)

    Bosworth, John

    2007-01-01

    This viewgraph presentation describes the F-15 Intelligent Flight Control System (IFCS). The goals of this project include: 1) Demonstrate revolutionary control approaches that can efficiently optimize aircraft performance in both normal and failure conditions; and 2) Demonstrate advance neural network-based flight control technology for new aerospace systems designs.

  18. Quiet engine program flight engine design study

    Science.gov (United States)

    Klapproth, J. F.; Neitzel, R. E.; Seeley, C. T.

    1974-01-01

    The results are presented of a preliminary flight engine design study based on the Quiet Engine Program high-bypass, low-noise turbofan engines. Engine configurations, weight, noise characteristics, and performance over a range of flight conditions typical of a subsonic transport aircraft were considered. High and low tip speed engines in various acoustically treated nacelle configurations were included.

  19. Looking Up: Multimedia about Space and Flight.

    Science.gov (United States)

    Walter, Virginia A.

    1998-01-01

    The best CD-ROMs for young people about space and flight exploit the promise of hypermedia to create informative simulations. This article provides an annotated bibliography of CD-ROMs on astronomy and flight for K-12 students; suggests book and Internet connections; and highlights poetry for astronomers, science fiction, a biography of Charles…

  20. Pernilla Craig Flight Around Lac Leman

    CERN Multimedia

    Goldfarb, Steven

    2013-01-01

    Aviator and future physicist Pernilla Craig visits CERN and is hosted by the Geneva Flight Club. Web pioneer Robert Cailliau helps in the preparations, flight instructor Aline Cosmetatos takes the co-pilot seat, and ATLAS outreach coordinator Steven Goldfarb serves cocktails from the back seat.

  1. Flight. Science Series Grades 4, 5, 6.

    Science.gov (United States)

    Frensch, Helen

    The activities in this book are designed to reinforce the elementary concepts of flight. General background information, suggested activities, questions for discussion, and answers are provided. Twenty-eight reproducible worksheets are contained in this guide. Topics include: hot air balloons, the physics of flight, air resistance, airplane…

  2. 14 CFR 61.98 - Flight proficiency.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Flight proficiency. 61.98 Section 61.98 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIRMEN...) Navigation; (viii) Slow flight and stalls; (ix) Emergency operations; and (x) Postflight procedures. (2) For...

  3. 14 CFR 61.107 - Flight proficiency.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Flight proficiency. 61.107 Section 61.107 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIRMEN... reference maneuvers; (vii) Navigation; (viii) Slow flight and stalls; (ix) Basic instrument maneuvers; (x...

  4. FT 3 Flight Test Cards for Export

    Science.gov (United States)

    Marston, Michael L.

    2015-01-01

    These flight test cards will be made available to stakeholders who participated in FT3. NASA entered into the relationship with our stakeholders, including the FAA, to develop requirements that will lead to routine flights of unmanned aircraft systems flying in the national airspace system.

  5. 14 CFR 63.43 - Flight engineer courses.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Flight engineer courses. 63.43 Section 63...) AIRMEN CERTIFICATION: FLIGHT CREWMEMBERS OTHER THAN PILOTS Flight Engineers § 63.43 Flight engineer courses. An applicant for approval of a flight engineer course must submit a letter to the Administrator...

  6. Remote radio control of insect flight

    Directory of Open Access Journals (Sweden)

    Hirotaka Sato

    2009-10-01

    Full Text Available We demonstrated the remote control of insects in free flight via an implantable radio-equipped miniature neural stimulating system. The pronotum mounted system consisted of neural stimulators, muscular stimulators, a radio transceiver-equipped microcontroller and a microbattery. Flight initiation, cessation and elevation control were accomplished through neural stimulus of the brain which elicited, suppressed or modulated wing oscillation. Turns were triggered through the direct muscular stimulus of either of the basalar muscles. We characterized the response times, success rates, and free-flight trajectories elicited by our neural control systems in remotely-controlled beetles. We believe this type of technology will open the door to in-flight perturbation and recording of insect flight responses.

  7. Remote radio control of insect flight.

    Science.gov (United States)

    Sato, Hirotaka; Berry, Christopher W; Peeri, Yoav; Baghoomian, Emen; Casey, Brendan E; Lavella, Gabriel; Vandenbrooks, John M; Harrison, Jon F; Maharbiz, Michel M

    2009-01-01

    We demonstrated the remote control of insects in free flight via an implantable radio-equipped miniature neural stimulating system. The pronotum mounted system consisted of neural stimulators, muscular stimulators, a radio transceiver-equipped microcontroller and a microbattery. Flight initiation, cessation and elevation control were accomplished through neural stimulus of the brain which elicited, suppressed or modulated wing oscillation. Turns were triggered through the direct muscular stimulus of either of the basalar muscles. We characterized the response times, success rates, and free-flight trajectories elicited by our neural control systems in remotely controlled beetles. We believe this type of technology will open the door to in-flight perturbation and recording of insect flight responses.

  8. Shuttle operations era planning for flight operations

    Science.gov (United States)

    Holt, J. D.; Beckman, D. A.

    1984-01-01

    The Space Transportation System (STS) provides routine access to space for a wide range of customers in which cargos vary from single payloads on dedicated flights to multiple payloads that share Shuttle resources. This paper describes the flight operations planning process from payload introduction through flight assignment to execution of the payload objectives and the changes that have been introduced to improve that process. Particular attention is given to the factors that influence the amount of preflight preparation necessary to satisfy customer requirements. The partnership between the STS operations team and the customer is described in terms of their functions and responsibilities in the development of a flight plan. A description of the Mission Control Center (MCC) and payload support capabilities completes the overview of Shuttle flight operations.

  9. Young PHD's in Human Space Flight

    Science.gov (United States)

    Wilson, Eleanor

    2002-01-01

    The Cooperating Hampton Roads Organizations for Minorities in Engineering (CHROME) in cooperation with the NASA Office of Space Flight, Human Exploration and Development of Space Enterprise sponsored a summer institute, Young PHD#s (Persons Having Dreams) in Human Space Flight. This 3-day institute used the curriculum of a workshop designed for space professionals, 'Human Space Flight-Analysis and Design: An Integrated, Systematic Approach.' The content was tailored to a high school audience. This institute seeks to stimulate the interest of pre-college students in space flight and motivate them to pursue further experiences in this field. Additionally, this institute will serve as a pilot model for a pre- collegiate training program that can be replicated throughout the country. The institute was complemented with a trip to the Goddard Space Flight Center.

  10. Why Students Do and Do Not Attend Classes: Myths and Realities.

    Science.gov (United States)

    Friedman, Paul; Rodriguez, Fred; McComb, Joe

    2001-01-01

    Explored student characteristics and course characteristics influencing why college students skip class. Found that attendance behavior cannot be easily explained and that the decision to attend is influenced by multiple factors. (EV)

  11. Personality traits affect teaching performance of attending physicians: results of a multi-center observational study

    NARCIS (Netherlands)

    Scheepers, Renée A.; Lombarts, Kiki M. J. M. H.; van Aken, Marcel A. G.; Heineman, Maas Jan; Arah, Onyebuchi A.

    2014-01-01

    Worldwide, attending physicians train residents to become competent providers of patient care. To assess adequate training, attending physicians are increasingly evaluated on their teaching performance. Research suggests that personality traits affect teaching performance, consistent with studied

  12. A Survey of Open-Source UAV Flight Controllers and Flight Simulators

    DEFF Research Database (Denmark)

    Ebeid, Emad Samuel Malki; Skriver, Martin; Terkildsen, Kristian Husum

    2018-01-01

    , which are all tightly linked to the UAV flight controller hardware and software. The lack of standardization of flight controller architectures and the use of proprietary closed-source flight controllers on many UAV platforms, however, complicates this work: solutions developed for one flight controller...... may be difficult to port to another without substantial extra development and testing. Using open-source flight controllers mitigates some of these challenges and enables other researchers to validate and build upon existing research. This paper presents a survey of the publicly available open...

  13. Traditional birth attendants issue: a menace in developing countries.

    Science.gov (United States)

    Buowari, O Y

    2012-01-01

    A significant proportion of births in Nigeria still occur at homes of traditional birth attendant. Traditional birth attendants are popular in developing and low resource countries. They lack no formal education or medical training and their clients end up with obstetric complications which lead to severe morbidity and mortality. Two cases of pregnant women that engaged the services of traditional birth attendants (TBA) before presenting at a health facility are presented. They ended up with severe morbidity and mortalities. A 29 year old gravida 3 + para 2+0 woman with two previous caesarean section(C/S) was counselled for elective c/s but declined. She presented at the home of a TBA, had spontaneous vagina deliver, collapsed one hour after delivery and was dead by the time she was brought to the hospital. A 30 year old gravida 10 para 7 + 3 presented in hospital after being in labour at the home of a TBA for three days. On presentation in hospital there was absent foetal heart sound. At surgery there was ruptured uterus and subtotal hysterectomy was done. To improve the situation better access to optimal antenatal care and intrapartum care together with early referral of high-risk patients must be facilitated. Increased community awareness, promotion of appropriate technology for effective health care planning strategy from the grassroots level to tertiary centres is important in the reduction of obstructed labour. One of the most effective means of reducing maternal mortality is the provision of caesarean section for all women who need it.

  14. Decompression tables for inside chamber attendants working at altitude.

    Science.gov (United States)

    Bell, James; Thombs, Paul A; Davison, William J; Weaver, Lindell K

    2014-01-01

    Hyperbaric oxygen (HBO2) multiplace chamber inside attendants (IAs) are at risk for decompression sickness (DCS). Standard decompression tables are formulated for sea-level use, not for use at altitude. At Presbyterian/St. Luke's Medical Center (Denver, Colorado, 5,924 feet above sea level) and Intermountain Medical Center (Murray, Utah, 4,500 feet), the decompression obligation for IAs is managed with U.S. Navy Standard Air Tables corrected for altitude, Bühlmann Tables, and the Nobendem© calculator. IAs also breathe supplemental oxygen while compressed. Presbyterian/St. Luke's (0.83 atmospheres absolute/atm abs) uses gauge pressure, uncorrected for altitude, at 45 feet of sea water (fsw) (2.2 atm abs) for routine wound care HBO2 and 66 fsw (2.8 atm abs) for carbon monoxide/cyanide poisoning. Presbyterian/St. Luke's provides oxygen breathing for the IAs at 2.2 atm abs. At Intermountain (0.86 atm abs), HBO2 is provided at 2.0 atm abs for routine treatments and 3.0 atm abs for carbon monoxide poisoning. Intermountain IAs breathe intermittent 50% nitrogen/50% oxygen at 3.0 atm abs and 100% oxygen at 2.0 atm abs. The chamber profiles include a safety stop. From 1990-2013, Presbyterian/St. Luke's had 26,900 total IA exposures: 25,991 at 45 fsw (2.2 atm abs) and 646 at 66 fsw (2.8 atm abs); there have been four cases of IA DCS. From 2008-2013, Intermountain had 1,847 IA exposures: 1,832 at 2 atm abs and 15 at 3 atm abs, with one case of IA DCS. At both facilities, DCS incidents occurred soon after the chambers were placed into service. Based on these results, chamber inside attendant risk for DCS at increased altitude is low when the inside attendants breathe supplemental oxygen.

  15. [Job stress in locomotive attendants in a locomotive depot and related influencing factors].

    Science.gov (United States)

    Kang, L; Jia, X C; Lu, F; Zhou, W H; Chen, R

    2017-10-20

    Objective: To investigate the current status of job stress in locomotive attendants in a locomotive depot and related influencing factors. Methods: From 2012 to 2013, cluster sampling was used to select 1500 locomotive attendants in a locomotive depot in Zhengzhou Railway Bureau as respondents.The contents of the investigation included general data and occupational information.A job satisfaction questionnaire was used to investigate the degree of satisfaction, a depression scale was used to investigate the frequency of symptoms, and a daily stress scale was used to investigate the frequency of fatigue and stress. Results: There was a significant difference in depression score between locomotive attendants with different ages, working years, degrees of education, working situations of spouse, total monthly family incomes, numbers of times of attendanceat night, monthly numbers of times of attendance,ormonthly attendance times( P job satisfaction score between locomotive attendants with different ages,working years, degrees of education, working situations of spouse, total monthly family incomes, numbers of times of attendance at night, monthly attendance times,or ways to work( P job satisfaction( β =1.546)and monthly number of times of attendance,working years,attendance time at night,and degree of education were negatively correlated with job satisfaction( β =-0.185,-0.097,-0.020,and -1.106); monthly number of times of attendance andcommute time were positively correlated with depression( β =0.243 and 0.029); attendance time at night,working situation of spouse,commute time,monthly number of times of attendance,degree of education,and working years were positively correlated with daily stress( β =0.006,0.473,0.010,0.043,0.585, and 0.028). Conclusion: Number of times of attendance, attendance time,working years,and spouse are influencing factors for job stress in locomotive attendants. Improvement in work process and care for their personal life help to reduce

  16. QR Code, Face Recognition, and Google Location as Alternative Solution for Employee's Attendance in Small Companies

    OpenAIRE

    Wongso, Oscar

    2016-01-01

    RFID and biometric time attendance have been used to taking employee's attendances in attendances. But they have disadvantage which is cost a lot in terms of prices when need to be used in several places at the same time. An alternative solution was given by using android application which utilizing QR-Code, Face Recognition, and Google Map Location technologies implemented in smartphone to taking employee's attendances. A test for this system was conduct on one of private colouring studios i...

  17. A Simple Flight Mill for the Study of Tethered Flight in Insects.

    Science.gov (United States)

    Attisano, Alfredo; Murphy, James T; Vickers, Andrew; Moore, Patricia J

    2015-12-10

    Flight in insects can be long-range migratory flights, intermediate-range dispersal flights, or short-range host-seeking flights. Previous studies have shown that flight mills are valuable tools for the experimental study of insect flight behavior, allowing researchers to examine how factors such as age, host plants, or population source can influence an insects' propensity to disperse. Flight mills allow researchers to measure components of flight such as speed and distance flown. Lack of detailed information about how to build such a device can make their construction appear to be prohibitively complex. We present a simple and relatively inexpensive flight mill for the study of tethered flight in insects. Experimental insects can be tethered with non-toxic adhesives and revolve around an axis by means of a very low friction magnetic bearing. The mill is designed for the study of flight in controlled conditions as it can be used inside an incubator or environmental chamber. The strongest points are the very simple electronic circuitry, the design that allows sixteen insects to fly simultaneously allowing the collection and analysis of a large number of samples in a short time and the potential to use the device in a very limited workspace. This design is extremely flexible, and we have adjusted the mill to accommodate different species of insects of various sizes.

  18. Public outreach: Multitudes attend the Night of Science

    CERN Multimedia

    2006-01-01

    The Night of Science, which took place in the parc de la Perle du Lac in Geneva last weekend, was a great success, with 30000 visitors attending according to the organisers. Many curious people flocked to the stands and animations until late on Saturday night and all afternoon on Sunday. The CERN stand (photo) received a great amount of interest from participants. Both kids and adults discovered the activities of the Laboratory and the data-processing revolution initiated by CERN, from the Web to the Computing Grid. Hats off to the CERN collaborators in the Communication Group and IT Department who made this event a success.

  19. Advanced Transport Operating System (ATOPS) Flight Management/Flight Controls (FM/FC) software description

    Science.gov (United States)

    Wolverton, David A.; Dickson, Richard W.; Clinedinst, Winston C.; Slominski, Christopher J.

    1993-01-01

    The flight software developed for the Flight Management/Flight Controls (FM/FC) MicroVAX computer used on the Transport Systems Research Vehicle for Advanced Transport Operating Systems (ATOPS) research is described. The FM/FC software computes navigation position estimates, guidance commands, and those commands issued to the control surfaces to direct the aircraft in flight. Various modes of flight are provided for, ranging from computer assisted manual modes to fully automatic modes including automatic landing. A high-level system overview as well as a description of each software module comprising the system is provided. Digital systems diagrams are included for each major flight control component and selected flight management functions.

  20. Increasing Student Attendance: A Study Comparing Superintendents' Knowledge of Best Practices to Enacted Policies

    Science.gov (United States)

    Isom, Dena K.

    2014-01-01

    This report describes a problem-based learning project focused on the information available to superintendents related to improving student attendance. This information has the potential to assist school districts in improving the attendance of each student as is required by attendance standards such as those of the fifth version of the Missouri…

  1. The Role of Attendance in Lecture Classes: You Can Lead a Horse to Water...

    Science.gov (United States)

    Golding, Jonathan M.

    2011-01-01

    A review of prior research on the role of attendance policies in large lecture classes (including psychology) is presented. This research showed that although students often did not attend class, various policies were effective in getting students to the classroom. Moreover, some research showed that an attendance policy did not lower instructor…

  2. Favouring New Indigenous Leadership: Indigenous Students Attending Higher Education in Mexico

    Science.gov (United States)

    Delgado, Manuel Lopez

    2016-01-01

    The opportunities to attend higher education in Mexico have traditionally been offered to the middle class population since around 30% of students who finish high school are able to attend higher education. The main reason for this low attendance is the poverty in which much of the population lives and the lack of higher education institutions in…

  3. The Effect of "Clickers" on Attendance in an Introductory Statistics Course: An Action Research Study

    Science.gov (United States)

    Amstelveen, Raoul H.

    2013-01-01

    The purpose of this study was to design and implement a Classroom Response System, also known as a "clicker," to increase attendance in introductory statistics courses at an undergraduate university. Since 2010, non-attendance had been prevalent in introductory statistics courses. Moreover, non-attendance created undesirable classrooms…

  4. The Value of Attending a Women's College: Education, Occupation, and Income Benefits.

    Science.gov (United States)

    Riordan, Cornelius

    1994-01-01

    A study using data from the National Longitudinal Study of the High School Class of 1972 compared effects of attendance at a women's college for one to six years (n=125) with attendance at only coeducational colleges (n=1832). Findings indicated significant occupational achievement benefits were realized for each year of attendance at a women's…

  5. What Is the Influence of a Compulsory Attendance Policy on Absenteeism and Performance?

    Science.gov (United States)

    Snyder, Jason L.; Lee-Partridge, Joo Eng; Jarmoszko, A. Tomasz; Petkova, Olga; D'Onofrio, Marianne J.

    2014-01-01

    The authors utilized a quasiexperimental design across sections of managerial communication and management information systems classes (N = 212) to test the impact of compulsory attendance policies on student absenteeism and performance. Students in the compulsory attendance policy condition received an attendance policy that punished excessive…

  6. Improving the Quantity and Quality of Attendance Data to Enhance Student Retention

    Science.gov (United States)

    Bowen, Eleri; Price, Trevor; Lloyd, Steve; Thomas, Steve

    2005-01-01

    This article draws attention to local and global attendance monitoring in higher education. The paper outlines benefits of attendance monitoring for both the individual learner and university, and compares traditional paper-based attendance monitoring systems with an electronic system piloted in the Business School and School of Technology at the…

  7. STS-78 Flight Day 11

    Science.gov (United States)

    1996-01-01

    On this eleventh day of the STS-78 mission, the flight crew, Cmdr. Terence T. Henricks, Pilot Kevin R. Kregel, Payload Cmdr. Susan J. Helms, Mission Specialists Richard M. Linnehan, Charles E. Brady, Jr., and Payload Specialists Jean-Jacques Favier, Ph.D. and Robert B. Thirsk, M.D., are shown conducting a news conference to discuss the progress of the international mission with media from the United States, Canada and Europe. During the press conference, the crew explained the relevance of the experiments conducted aboard the Life Sciences and Microgravity mission, and praised support crews and researchers on Earth who are involved in the mission. Payload Specialist Dr. Robert Thirsk told Canadian journalists of how the research will not only benefit astronauts as they conduct long-term space missions, but also people on Earth. Some of the research will aid studies on osteoporosis and the effects steroids have on bones, and also may help doctors on Earth develop treatments for muscle diseases like muscular dystrophy, Thirsk told reporters in Toronto.

  8. Integrated Test and Evaluation Flight Test 3 Flight Test Plan

    Science.gov (United States)

    Marston, Michael Lawrence

    2015-01-01

    The desire and ability to fly Unmanned Aircraft Systems (UAS) in the National Airspace System (NAS) is of increasing urgency. The application of unmanned aircraft to perform national security, defense, scientific, and emergency management are driving the critical need for less restrictive access by UAS to the NAS. UAS represent a new capability that will provide a variety of services in the government (public) and commercial (civil) aviation sectors. The growth of this potential industry has not yet been realized due to the lack of a common understanding of what is required to safely operate UAS in the NAS. NASA's UAS Integration into the NAS Project is conducting research in the areas of Separation Assurance/Sense and Avoid Interoperability, Human Systems Integration (HSI), and Communication to support reducing the barriers of UAS access to the NAS. This research is broken into two research themes namely, UAS Integration and Test Infrastructure. UAS Integration focuses on airspace integration procedures and performance standards to enable UAS integration in the air transportation system, covering Sense and Avoid (SAA) performance standards, command and control performance standards, and human systems integration. The focus of Test Infrastructure is to enable development and validation of airspace integration procedures and performance standards, including the integrated test and evaluation. In support of the integrated test and evaluation efforts, the Project will develop an adaptable, scalable, and schedulable relevant test environment capable of evaluating concepts and technologies for unmanned aircraft systems to safely operate in the NAS. To accomplish this task, the Project will conduct a series of Human-in-the-Loop and Flight Test activities that integrate key concepts, technologies and/or procedures in a relevant air traffic environment. Each of the integrated events will build on the technical achievements, fidelity and complexity of the previous tests and

  9. Multimodal Displays for Target Localization in a Flight Test

    National Research Council Canada - National Science Library

    Tannen, Robert

    2001-01-01

    ... Synthesized Immersion Research Environment (SIRE) facility. Twelve pilots with a mean of 2652 flight hours performed a simulated flight task in which they were instructed to maintain a prescribed flight path, air speed, and altitude...

  10. Flight envelope protection system for unmanned aerial vehicles

    KAUST Repository

    Claudel, Christian G.; Shaqura, Mohammad

    2016-01-01

    Systems and methods to protect the flight envelope in both manual flight and flight by a commercial autopilot are provided. A system can comprise: an inertial measurement unit (IMU); a computing device in data communication with the IMU

  11. 14 CFR 61.193 - Flight instructor privileges.

    Science.gov (United States)

    2010-01-01

    ... than Flight Instructors With a Sport Pilot Rating § 61.193 Flight instructor privileges. A person who...; (e) An aircraft rating; (f) An instrument rating; (g) A flight review, operating privilege, or...

  12. Space Flight Software Development Software for Intelligent System Health Management

    Science.gov (United States)

    Trevino, Luis C.; Crumbley, Tim

    2004-01-01

    The slide presentation examines the Marshall Space Flight Center Flight Software Branch, including software development projects, mission critical space flight software development, software technical insight, advanced software development technologies, and continuous improvement in the software development processes and methods.

  13. Writing executable assertions to test flight software

    Science.gov (United States)

    Mahmood, A.; Andrews, D. M.; Mccluskey, E. J.

    1984-01-01

    An executable assertion is a logical statement about the variables or a block of code. If there is no error during execution, the assertion statement results in a true value. Executable assertions can be used for dynamic testing of software. They can be employed for validation during the design phase, and exception and error detection during the operation phase. The present investigation is concerned with the problem of writing executable assertions, taking into account the use of assertions for testing flight software. They can be employed for validation during the design phase, and for exception handling and error detection during the operation phase The digital flight control system and the flight control software are discussed. The considered system provides autopilot and flight director modes of operation for automatic and manual control of the aircraft during all phases of flight. Attention is given to techniques for writing and using assertions to test flight software, an experimental setup to test flight software, and language features to support efficient use of assertions.

  14. The Route Analysis Based On Flight Plan

    Science.gov (United States)

    Feriyanto, Nur; Saleh, Chairul; Fauzi, Achmad; Rachman Dzakiyullah, Nur; Riza Iwaputra, Kahfi

    2016-02-01

    Economic development effects use of air transportation since the business process in every aspect was increased. Many people these days was prefer using airplane because it can save time and money. This situation also effects flight routes, many airlines offer new routes to deal with competition. Managing flight routes is one of the problems that must be faced in order to find the efficient and effective routes. This paper investigates the best routes based on flight performance by determining the amount of block fuel for the Jakarta-Denpasar flight route. Moreover, in this work compares a two kinds of aircraft and tracks by calculating flight distance, flight time and block fuel. The result shows Jakarta-Denpasar in the Track II has effective and efficient block fuel that can be performed by Airbus 320-200 aircraft. This study can contribute to practice in making an effective decision, especially helping executive management of company due to selecting appropriate aircraft and the track in the flight plan based on the block fuel consumption for business operation.

  15. Contribution of attendant anions on cadmium toxicity to soil enzymes.

    Science.gov (United States)

    Tian, Haixia; Kong, Long; Megharaj, Mallavarapu; He, Wenxiang

    2017-11-01

    Sorption and desorption are critical processes to control the mobility and biotoxicity of cadmium (Cd) in soils. It is known that attendant anion species of heavy metals could affect metal adsorption on soils and might further alter their biotoxicity. However, for Cd, the influence of attendant anions on its sorption in soils and subsequent toxicity on soil enzymes are still unknown. In this work, four Cd compounds with different salt anions (SO 4 2- , NO 3 - , Cl - , and Ac - ) were selected to investigate their impact of on the sorption, soil dehydrogenase activity (DHA) and alkaline phosphatase activity (ALP). Thus, a series of simulated Cd pollution batch experiments including measuring adsorption-desorption behavior of Cd on soils and soil enzyme activities were carried out. Results showed that CdSO 4 exhibited highest sorption capacity among the tested soils except in Hunan soil. The Cd sorption with NO 3 - displayed a similar behavior with Cl - on all tested soils. Compared with soil properties, all four kinds of anions on Cd sorption played a more significant role affecting Cd ecological toxicity to soil DHA and ALP. Cd in acetate or nitrate form appears more sensitive towards DHA than sulphate and chloride, while the later pair is more toxic towards ALP than the former. These results have important implications for evaluation of Cd contamination using soil enzyme as bioindicator. Copyright © 2017 Elsevier Ltd. All rights reserved.

  16. Postpartum Visit Attendance Increases the Use of Modern Contraceptives

    Directory of Open Access Journals (Sweden)

    Saba W. Masho

    2016-01-01

    Full Text Available Background. Delays in postpartum contraceptive use may increase risk for unintended or rapid repeat pregnancies. The postpartum care visit (PPCV is a good opportunity for women to discuss family planning options with their health care providers. This study examined the association between PPCV attendance and modern contraceptive use using data from a managed care organization. Methods. Claims and demographic and administrative data came from a nonprofit managed care organization in Virginia (2008–2012. Information on the most recent delivery for mothers with singleton births was analyzed (N = 24,619. Routine PPCV (yes, no and modern contraceptive use were both dichotomized. Descriptive analyses provided percentages, frequencies, and means. Multiple logistic regression was conducted and ORs and 95% CIs were calculated. Results. More than half of the women did not attend their PPCV (50.8% and 86.9% had no modern contraceptive use. After controlling for the effects of confounders, women with PPCV were 50% more likely to use modern contraceptive methods than women with no PPCV (OR = 1.50, 95% CI = 1.31, 1.72. Conclusions. These findings highlight the importance of PPCV in improving modern contraceptive use and guide health care policy in the effort of reducing unintended pregnancy rates.

  17. Physical Fitness, Grit, School Attendance, and Academic Performance among Adolescents.

    Science.gov (United States)

    Cosgrove, Jonathan M; Chen, Yen T; Castelli, Darla M

    2018-01-01

    The purpose of this study was to examine the relationship of grit as a construct representing perseverance to overcoming barriers and the total number of school absences to academic performance (AP) while controlling for sociodemographics, fitness (i.e., PACER), and Body Mass Index (BMI). Adolescents ( N = 397, SD = 1.85; 80.9% females; 77.1% Hispanic) from an urban, minority-majority city in the Southern United States completed the FitnessGram® assessment of physical fitness (e.g., aerobic capacity and Body Mass Index (BMI)) and the valid and reliable short grit survey. The schools provided sociodemographics, attendance, and AP data for the adolescents. Adolescents with higher grit scores ( r s = 0.21, P < 0.001) and less total absences ( r s = -0.35, P < 0.001) performed better on AP. Hierarchical multiple regression indicated that grit and absences were associated with AP ( β = 0.13, P < 0.01 and β = -0.35, P < 0.001, resp.). Grit and a total number of absences are significant contributors to academic success, particularly among Hispanic adolescents. Further, grit and school attendance may serve as a better measure of protective factors over proximal health measures of cardiovascular health and BMI.

  18. Practices of traditional birth attendants in Machakos District, kenya.

    Science.gov (United States)

    Kaingu, Catherine Kaluwa; Oduma, Jemimah Achieng; Kanui, Titus I

    2011-09-01

    The aim of the study was to document TBAs practices as well as the indigenous herbal remedies they use to manage pre, intra and post partum complications in a rural Kenyan community. A cross sectional study was conducted on practicing TBAs and their clients living in the study area. Data was collected using structured questionnaires and interviews. Focused group discussions were held with the TBAs to supplement the interviews and questionnaire survey. Two hundred TBAs and 20 clients were interviewed. The majority of the TBAs were females 75% of them having attended to over 200 pregnant women over a period of 5 years and above compared to only 6% of the males. A total of 10 pregnancy related complications and symptoms including threatened abortion, labor complications, post partum hemorrhage and retained after birth were recorded. Fifty five plant species most of them belonging to Euphorbiaceae family were identified for the management of the complications. Traditional Birth Attendants still have a role to play in assisting pregnant women in rural communities. Their knowledge on herbal medicines is equally important and should be preserved for posterity. Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.

  19. Teaching Guatemalan traditional birth attendants about obstetrical emergencies.

    Science.gov (United States)

    Garcia, Kimberly; Dowling, Donna; Mettler, Gretchen

    2018-06-01

    Guatemala's Maternal Mortality Rate is 65th highest in the world at 120 deaths per 100,000 births. Contributing to the problem is traditional birth attendants (TBAs) attend most births yet lack knowledge about obstetrical emergencies. Government trainings in existence since 1955 have not changed TBA knowledge. Government trainings are culturally insensitive because they are taught in Spanish with written material, even though most TBAs are illiterate and speak Mayan dialects. The purpose of the observational study was to evaluate the effect of an oral training, that was designed to be culturally sensitive in TBAs' native language, on TBAs' knowledge of obstetrical emergencies. one hundred ninety-one TBAs participated. The study employed a pretest-posttest design. A checklist was used to compare TBAs' knowledge of obstetrical emergencies before and after the training. the mean pretest score was 5.006±SD 0.291 compared to the mean posttest score of 8.549±SD 0.201. Change in knowledge was a P value of 0.00. results suggest an oral training that was designed to be culturally sensitive in the native language improved TBAs' knowledge of obstetrical emergencies. Future trainings should follow a similar format to meet the needs of illiterate audiences in remote settings. Copyright © 2018 Elsevier Ltd. All rights reserved.

  20. Changing the role of the traditional birth attendant in Somaliland.

    Science.gov (United States)

    Pyone, Thidar; Adaji, Sunday; Madaj, Barbara; Woldetsadik, Tadesse; van den Broek, Nynke

    2014-10-01

    To explore the feasibility of changing the role of the traditional birth attendant (TBA) to act as birth companion and promoter of skilled birth attendance. Between 2008 and 2012, 75 TBAs received 3days of training and were paid US $5 for each patient brought to any of five healthcare facilities in Maroodi Jeex, Somaliland. Health facilities were upgraded (infrastructure, drugs and equipment, staff training, and incentivization). Eight key informant interviews (KIIs) and 10 focus group discussions (FGDs) involving 32 TBAs and 32 mothers were conducted. A framework approach was used for analysis. TBAs adopted their new role easily; instead of conducting home births and referring women to a facility only at onset of complications, they accompanied or referred mothers to a nearby facility for delivery, prenatal care, or postnatal care. Both TBAs and mothers accepted this new role, resulting in increased deliveries at health facilities. Facilitating factors included the creation of an enabling environment at the health facility, acceptance of the TBA by health facility staff, and monetary incentivization. Changing the role of the TBA to support facility-based delivery is feasible and acceptable. Further research is needed to see whether this is replicable and can be scaled-up. Copyright © 2014 International Federation of Gynecology and Obstetrics. Published by Elsevier Ireland Ltd. All rights reserved.