Sample records for previous canadian flight

  1. Analysis Of Navy Hornet Squadron Mishap Costs With Regard To Previously Flown Flight Hours (United States)


    HORNET SQUADRON MISHAP COSTS WITH REGARD TO PREVIOUSLY FLOWN FLIGHT HOURS by Jason R. Baumann June 2017 Thesis Advisor: Robert Eger Co...TYPE AND DATES COVERED Master’s thesis 4. TITLE AND SUBTITLE ANALYSIS OF NAVY HORNET SQUADRON MISHAP COSTS WITH REGARD TO PREVIOUSLY FLOWN...flown flight hours with mishap costs . It uses a macro level approach by evaluating how a squadron’s previously flown flight hours affect mishap cost and

  2. Outcome of secondary high-grade glioma in children previously treated for a malignant condition: A study of the Canadian Pediatric Brain Tumour Consortium

    International Nuclear Information System (INIS)

    Carret, Anne-Sophie; Tabori, Uri; Crooks, Bruce; Hukin, Juliette; Odame, Isaac; Johnston, Donna L.; Keene, Daniel L.; Freeman, Carolyn; Bouffet, Eric


    Background and purpose: Reports of secondary high-grade glioma (HGG) in survivors of childhood cancer are scarce. The aim of this study was to review the pattern of diagnosis, the treatment, and outcome of secondary pediatric HGG. Patients and methods: We performed a multi-center retrospective study among the 17 paediatric institutions participating in the Canadian Pediatric Brain Tumour Consortium (CPBTC). Results: We report on 18 patients (14 males, 4 females) treated in childhood for a primary cancer, who subsequently developed a HGG as a second malignancy. All patients had previously received radiation therapy +/- chemotherapy for either acute lymphoblastic leukaemia (n = 9) or solid tumour (n = 9). All HGG occurred within the previous radiation fields. At the last follow-up, 17 patients have died and the median survival time is 9.75 months. Conclusion: Although aggressive treatment seems to provide sustained remissions in some patients, the optimal management is still to be defined. Further documentation of such cases is necessary in order to better understand the pathogenesis, the natural history and the prevention of these tumours

  3. Detection of previously unknown fumonisin P analogue mycotoxins in a Fusarium verticillioides culture by high-performance liquid chromatography-electrospray ionization time-of-flight and ion trap mass spectrometry. (United States)

    Bartók, Tibor; Tölgyesi, László; Szécsi, Árpád; Mesterházy, Ákos; Bartók, Mihály; Gyimes, Ernő; Véha, Antal


    Five previously unknown fumonisin mycotoxins (iso-FP1, iso-FP(2,3a), iso-FP(2,3b), FP4 and iso-FP4) and three previously described FP analogues (FP(1-3)) were detected in a solid rice culture inoculated with Fusarium verticillioides. The fumonisins were characterized by high-performance liquid chromatography-electrospray ionization time-of-flight mass spectrometry (HPLC-ESI-TOFMS) and ion trap mass spectrometry (ITMS). The FP isomers were separated by using a flat gradient on a special, high-coverage C18, narrow-bore HPLC column (YMC-Pack J'sphere ODS H80), which was suggested for the separation of structural isomers. The verified structures of the FP(1-3) mycotoxins, the relative retention times (by HPLC-ESI-TOFMS and ITMS), the exact masses of the molecular ions (by TOFMS) and the masses of the product ions, including the hydrocarbon backbones (by ITMS) of the new compounds, strongly suggested their structures. © The Author [2013]. Published by Oxford University Press. All rights reserved. For Permissions, please email:

  4. I Am Canadian

    DEFF Research Database (Denmark)

    Goddard, Joe


    "I Am Canadian: Immigration and Multiculturalism in the True North" looks at Canadian immigration history from a contemporary point of view. The article scrutinizes recent discussions on dual nationality and what this may mean for Canadianness......."I Am Canadian: Immigration and Multiculturalism in the True North" looks at Canadian immigration history from a contemporary point of view. The article scrutinizes recent discussions on dual nationality and what this may mean for Canadianness....

  5. Catalog of Canadian Industrial Capabilities. (United States)


    be recalled for use in constructing maps and charts, updating existing maps, comparing changes from previous photographs etc. Many tasks can be...quantity 8 switches) Hughes Aircraft Company 192 Company: SCIEX Inc Address: 55 Glencameron Road #202 Thornhill, Ontario, Canada L3T IP2 History: SCIEX Inc...was incorporated in 1970 and is Canadian owned. The original name was Sciex Ltd, but was changed to the present name in 1977. The company has a US

  6. Miracle Flights (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 ...


    African Journals Online (AJOL)


    PREVIOUS SECOND TRIMESTER ABORTION: A risk factor for third trimester uterine rupture in three ... for accurate diagnosis of uterine rupture. KEY WORDS: Induced second trimester abortion - Previous uterine surgery - Uterine rupture. ..... scarred uterus during second trimester misoprostol- induced labour for a missed ...

  8. Framing Canadian federalism

    National Research Council Canada - National Science Library

    Saywell, John; Anastakis, Dimitry; Bryden, Penny E


    ... the pervasive effects that federalism has on Canadian politics, economics, culture, and history, and provide a detailed framework in which to understand contemporary federalism. Written in honour of John T. Saywell's half-century of accomplished and influential scholarly work and teaching, Framing Canadian Federalism is a timely and fitting t...

  9. Cognitive aspects of sexual functioning: differences between East Asian-Canadian and Euro-Canadian women. (United States)

    Morton, Heather; Gorzalka, Boris B


    The purpose of this study was to investigate the sexual beliefs of female undergraduates, as well as the thoughts they experience during sexual experiences. The study aimed to determine potential differences in these variables between East Asian-Canadians and Euro-Canadians, as well as the influence of acculturation on these variables. In addition, the relationships between sexual beliefs, automatic thoughts, and specific aspects of sexual functioning were examined. Euro-Canadian (n = 77) and East Asian-Canadian (n = 123) undergraduate women completed the Sexual Dysfunctional Beliefs Questionnaire, the Sexual Modes Questionnaire, the Female Sexual Function Index, and the Vancouver Index of Acculturation. East Asian women endorsed almost all sexual beliefs assessed in this study more than did Euro-Canadian women, and endorsement of these beliefs was associated with acculturation. In addition, East Asian-Canadian and Euro-Canadian women differed in the frequency of experiencing negative automatic thoughts. Results also revealed associations between difficulties in sexual functioning, and both sexual beliefs and automatic thoughts. Together, these results provide preliminary support for the hypothesis that differences in cognitive aspects of sexuality may underlie the differences in sexual functioning previously observed between these two groups.

  10. Flight Planning in the Cloud (United States)

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


    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. Laparoscopy After Previous Laparotomy

    Directory of Open Access Journals (Sweden)

    Zulfo Godinjak


    Full Text Available Following the abdominal surgery, extensive adhesions often occur and they can cause difficulties during laparoscopic operations. However, previous laparotomy is not considered to be a contraindication for laparoscopy. The aim of this study is to present that an insertion of Veres needle in the region of umbilicus is a safe method for creating a pneumoperitoneum for laparoscopic operations after previous laparotomy. In the last three years, we have performed 144 laparoscopic operations in patients that previously underwent one or two laparotomies. Pathology of digestive system, genital organs, Cesarean Section or abdominal war injuries were the most common causes of previouslaparotomy. During those operations or during entering into abdominal cavity we have not experienced any complications, while in 7 patients we performed conversion to laparotomy following the diagnostic laparoscopy. In all patients an insertion of Veres needle and trocar insertion in the umbilical region was performed, namely a technique of closed laparoscopy. Not even in one patient adhesions in the region of umbilicus were found, and no abdominal organs were injured.

  12. The Canadian nuclear scene - a 1983 perspective

    International Nuclear Information System (INIS)

    Foulkes, F.M.


    The author reviews the previous year's performance and future prospects for the Canadian nuclear industry. Continued economic difficulties have meant continued streamlining of the industry. Basic strength is still the year-after-year record performance of the Ontario Hydro CANDU units. Given this performance, flexibility in the structure of the industry, and strong government support commercial success can be achieved eventually

  13. Canadian nuclear risk experience

    International Nuclear Information System (INIS)

    Hamel, P.E.


    Risk assessment in the Canadian nuclear fuel cycle is a very important and complex subject. Many levels of government are involved in deciding the acceptable limits for the risks, taking into account the benefits for society [fr

  14. Cosmic Radiation Exposure on Canadian-Based Commercial Airline Routes

    International Nuclear Information System (INIS)

    Lewis, B.J.; Tume, P.; Bennett, L.G.I.; Pierre, M.; Green, A.R.; Cousins, T.; Hoffarth, B.E.; Jones, T.A.; Brisson, J.R.


    As a result of the recent recommendations of ICRP 60 and in anticipation of possible regulation on occupational exposure of commercial aircrew, a two-part investigation was carried out over a one-year period to determine the total dose equivalent on representative Canadian-based flight routes. As part of the study, a dedicated scientific measurement flight (using both a conventional suite of powered detectors and passive dosimetry) was used to characterise the complex mixed radiation field and to intercompare the various instrumentation. In the other part of the study, volunteer aircrew carried (passive) neutron bubble detectors during their routine flight duties. From these measurements, the total dose equivalent was derived for a given route with a knowledge of the neutron fraction as determined from the scientific flight and computer code (CARI-LF) calculations. This investigation has yielded an extensive database of over 3100 measurements providing the total dose equivalent for 385 different routes. By folding in flight frequency information and the accumulated flight hours, the annual occupational exposures of 26 flight crew have also been determined. This study has indicated that most Canadian-based domestic and international aircrew will exceed the proposed annual ICRP 60 public limit of 1 mSv.y -1 , but will be below the occupational limit of 20 mSv.y -1 . (author)

  15. Cosmic radiation exposure on Canadian-based commercial airline routes

    Energy Technology Data Exchange (ETDEWEB)

    Lewis, B.J.; Tume, P.; Bennett, L.G.I.; Pierre, M.; Green, A.R


    As a result of the recent recommendations of the ICRP-60 and in anticipation of possible regulation on occupational exposure of commercial aircrew, a two-phase investigation was carried out over a one-year period to determine the total dose equivalent on representative Canadian-based flight routes. In the first phase of the study, dedicated scientific flights on a Northern round-trip route between Ottawa and Resolute Bay provided the opportunity to characterize the complex mixed-radiation field, and to intercompare various instrumentation using both a conventional suite of powered detectors and passive dosimetry. In the second phase, volunteer aircrew carried (passive) neutron bubble detectors during their routine flight duties. From these measurements, the total dose equivalent was derived for a given route with a knowledge of the neutron fraction as determined from the scientific flights and computer code (CART-LF) calculations. This study has yielded an extensive database of over 3100 measurements providing the total dose equivalent for 385 different routes. By folding in flight frequency information and the accumulated flight hours, the annual occupational exposures of 26 flight crew have been determined. This study has indicated that most Canadian-based domestic and international aircrew will exceed the proposed annual ICRP-60 public limit of 1 mSv y{sup -1} but will be well below the occupational limit of 20 mSv y{sup -1}. (author)

  16. Cosmic Radiation Exposure on Canadian-Based Commercial Airline Routes

    Energy Technology Data Exchange (ETDEWEB)

    Lewis, B.J.; Tume, P.; Bennett, L.G.I.; Pierre, M.; Green, A.R.; Cousins, T.; Hoffarth, B.E.; Jones, T.A.; Brisson, J.R


    As a result of the recent recommendations of ICRP 60 and in anticipation of possible regulation on occupational exposure of commercial aircrew, a two-part investigation was carried out over a one-year period to determine the total dose equivalent on representative Canadian-based flight routes. As part of the study, a dedicated scientific measurement flight (using both a conventional suite of powered detectors and passive dosimetry) was used to characterise the complex mixed radiation field and to intercompare the various instrumentation. In the other part of the study, volunteer aircrew carried (passive) neutron bubble detectors during their routine flight duties. From these measurements, the total dose equivalent was derived for a given route with a knowledge of the neutron fraction as determined from the scientific flight and computer code (CARI-LF) calculations. This investigation has yielded an extensive database of over 3100 measurements providing the total dose equivalent for 385 different routes. By folding in flight frequency information and the accumulated flight hours, the annual occupational exposures of 26 flight crew have also been determined. This study has indicated that most Canadian-based domestic and international aircrew will exceed the proposed annual ICRP 60 public limit of 1 mSv.y{sup -1}, but will be below the occupational limit of 20 mSv.y{sup -1}. (author)

  17. The Canadian Astronomy Data Centre (United States)

    Ball, Nicholas M.; Schade, D.; Astronomy Data Centre, Canadian


    The Canadian Astronomy Data Centre (CADC) is the world's largest astronomical data center, holding over 0.5 Petabytes of information, and serving nearly 3000 astronomers worldwide. Its current data collections include BLAST, CFHT, CGPS, FUSE, Gemini, HST, JCMT, MACHO, MOST, and numerous other archives and services. It provides extensive data archiving, curation, and processing expertise, via projects such as MegaPipe, and enables substantial day-to-day collaboration between resident astronomers and computer specialists. It is a stable, powerful, persistent, and properly supported environment for the storage and processing of large volumes of data, a condition that is now absolutely vital for their science potential to be exploited by the community. Through initiatives such as the Common Archive Observation Model (CAOM), the Canadian Virtual Observatory (CVO), and the Canadian Advanced Network for Astronomical Research (CANFAR), the CADC is at the global forefront of advancing astronomical research through improved data services. The CAOM aims to provide homogeneous data access, and hence viable interoperability between a potentially unlimited number of different data collections, at many wavelengths. It is active in the definition of numerous emerging standards within the International Virtual Observatory, and several datasets are already available. The CANFAR project is an initiative to make cloud computing for storage and data-intensive processing available to the community. It does this via a Virtual Machine environment that is equivalent to managing a local desktop. Several groups are already processing science data. CADC is also at the forefront of advanced astronomical data analysis, driven by the science requirements of astronomers both locally and further afield. The emergence of 'Astroinformatics' promises to provide not only utility items like object classifications, but to directly enable new science by accessing previously undiscovered or intractable

  18. Canadian competitive advantage

    International Nuclear Information System (INIS)

    Wills, J.


    The evolution of the Canadian petrochemical industry was outlined, emphasizing the proximity to feedstocks as the principal advantage enjoyed by the industry over its international competitors. Annual sales statistics for 1995 were provided. Key players in the Canadian petrochemical industry (Nova, Dow, DuPont, Methanex, Esso, Union Carbide, Shell and Celanese), their share of the market and key products were noted. Manufacturing facilities are located primarily in Alberta, southern Ontario and Quebec. The feedstock supply infrastructure, historical and alternative ethane pricing in Canada and the US, the North American market for petrochemicals, the competitiveness of the industry, tax competitiveness among Canadian provinces and the US, the Canada - US unit labour cost ratio, ethylene facility construction costs in Canada relative to the US Gulf Coast, and projected 1997 financial requirements were reviewed. 19 figs

  19. Canadian Irradiation Centre

    International Nuclear Information System (INIS)


    The Canadian Irradiation Centre is a non-profit cooperative project between Atomic Energy of Canada Limited, Radiochemical Company and Universite du Quebec, Institut Armand-Frappier, Centre for Applied Research in Food Science. The Centre's objectives are to develop, demonstrate and promote Canada's radiation processing technology and its applications by conducting applied research; training technical, professional and scientific personnel; educating industry and government; demonstrating operational and scientific procedures; developing processing procedures and standards, and performing product and market acceptance trials. This pamphlet outlines the history of radoation technology and the services offered by the Canadian Irradiation Centre

  20. Canadian beef quality audit.


    Van Donkersgoed, J; Jewison, G; Mann, M; Cherry, B; Altwasser, B; Lower, R; Wiggins, K; Dejonge, R; Thorlakson, B; Moss, E; Mills, C; Grogan, H


    A study was conducted in 4 Canadian processing plants in 1995-96 to determine the prevalence of quality defects in Canadian cattle. One percent of the annual number of cattle processed in Canada were evaluated on the processing floor and 0.1% were graded in the cooler. Brands were observed on 37% and multiple brands on 6% of the cattle. Forty percent of the cattle had horns, 20% of which were scurs, 33% were stubs, 10% were tipped, and 37% were full length. Tag (mud and manure on the hide) wa...

  1. Canadian photovoltaic commercial activity review

    International Nuclear Information System (INIS)

    Adkinson, D.J.; Royer, J.


    A survey was performed on the activities of the Canadian photovoltaic (PV) industry during 1988 for the three years of 1985-1987, and a similar survey was carried out in 1989. The findings of the latest survey are reported and compared with the previous survey. Market growth rates in the order of 15%/y and greater in the international market are reflected in the Canadian scene with an estimated 1989 activity in the range of $15 million. Details are presented of the distribution of firms across Canada, the distribution of annual sales activities by application, annual PV module sales in Europe and globally, breakdown of PV module powers produced by the United States, Japan, Europe, and others, breakdown of reported sales in Canada by source/destination, regional distribution of sales for installation in Canada, distribution by purchaser type for sales of PV equipment in Canada, and a summary of sales classified by application. In 1989 for the first time global demand for PV modules exceeded supply. 8 refs., 9 tabs

  2. Proceedings of the Canadian Nuclear Society 12. annual conference

    International Nuclear Information System (INIS)


    This volume contains the Proceedings of the seventeen Technical Sessions from the Twelfth Annual Conference of the Canadian Nuclear Society held in Saskatoon, Saskatchewan, June 9 to 12, 1991. As in previous years, the Annual Conference of the Canadian Nuclear Society was held in conjunction with the Annual Conference of the Canadian Nuclear Association. The major topics of discussion included: reactor physics; thermal hydraulics; industrial irradiation; computer applications; fuel channel analysis; small reactors; severe accidents; fuel behaviour under accident conditions; reactor components; safety related computer software; nuclear fuel management; nuclear waste management; and, uranium mining processing

  3. Canadian gas resource

    International Nuclear Information System (INIS)



    Canadian exports of gas to the United States are a critical component of EMF-9 (North American Gas Supplies). However, it has been noted that there are differences between US expectations for imports and Canadian forecasts of export supply capacity. Recent studies by the National Petroleum Council (NPC) and the US Department of Energy (DOE) indicate that 1.8 to 2.4 Tcf of imports may be required in the mid to late 1990's; A recent study by Canada's National Energy Board (NEB) indicates that the conventional resource base may not be able to provide continued gas exports to the US after the mid 1990's and that frontier sources would need to be developed to meet US expectations. The discrepancies between US expectations and Canadian estimates of capacity are of great concern to US policymakers because they call into question the availability of secure supplies of natural gas and suggest that the cost of imports (if available) will be high. By implication, if shortages are to be averted, massive investment may be required to bring these higher cost sources to market. Since the long-term supply picture will be determined by the underlying resource base, EMF-9 participants have been asked to provide estimates of critical components of the Canadian resource base. This paper provides a summary of ICF-Lewin's recent investigation of both the Conventional and Tight Gas resource in Canada's Western Sedimentary Basin, which includes both quantitative estimates and a brief sketch of the analysis methodology

  4. Canadian Nuclear Association

    International Nuclear Information System (INIS)

    Reid, John


    It is the view of the Canadian Nuclear Association that continuing creation of economic wealth is vital to sustainable development. A plentiful supply of cheap energy is essential. Nuclear energy provides the cleanest source of bulk energy generation essential to any path of sustainable development

  5. Research Award: Canadian Partnerships

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

    Corey Piccioni


    Aug 7, 2013 ... universies and civil society organizaons (CSOs) — that is acvely engaged in creang, sharing, and using knowledge to advance our understanding of internaonal ... but programs are also being offered by other facules, including public health and engineering. Some inial research on Canadian study‐abroad ...

  6. 2010 Canadian Cardiovascular Society/Canadian Heart Rhythm Society Training Standards and Maintenance of Competency in Adult Clinical Cardiac Electrophysiology. (United States)

    Green, Martin S; Guerra, Peter G; Krahn, Andrew D


    The last guidelines on training for adult cardiac electrophysiology (EP) were published by the Canadian Cardiovascular Society in 1996. Since then, substantial changes in the knowledge and practice of EP have mandated a review of the previous guidelines by the Canadian Heart Rhythm Society, an affiliate of the Canadian Cardiovascular Society. Novel tools and techniques also now allow electrophysiologists to map and ablate increasingly complex arrhythmias previously managed with pharmacologic or device therapy. Furthermore, no formal attempt had previously been made to standardize EP training across the country. The 2010 Canadian Cardiovascular Society/Canadian Heart Rhythm Society Training Standards and Maintenance of Competency in Adult Clinical Cardiac Electrophysiology represent a consensus arrived at by panel members from both societies, as well as EP program directors across Canada and other select contributors. In describing program requirements, the technical and cognitive skills that must be acquired to meet training standards, as well as the minimum number of procedures needed in order to acquire these skills, the new guidelines provide EP program directors and committee members with a template to develop an appropriate curriculum for EP training for cardiology fellows here in Canada. Copyright © 2011 Canadian Cardiovascular Society. Published by Elsevier Inc. All rights reserved.

  7. Canadian fusion program

    International Nuclear Information System (INIS)

    Brown, T.S.


    The National Research Council of Canada is establishing a coordinated national program of fusion research and development that is planned to grow to a total annual operating level of about $20 million in 1985. The long-term objective of the program is to put Canadian industry in a position to manufacture sub-systems and components of fusion power reactors. In the near term the program is designed to establish a minimum base of scientific and technical expertise sufficient to make recognized contributions and thereby gain access to the international effort. The Canadian program must be narrowly focussed on a few specializations where Canada has special indigenous skills or technologies. The programs being funded are the Tokamak de Varennes, the Fusion Fuels Technology Project centered on tritium management, and high-power gas laser technology and associated diagnostic instrumentation

  8. Financing Canadian international operations

    International Nuclear Information System (INIS)

    Beagle, G.


    A primer on financing international operations by Canadian corporations was provided. Factors affecting the availability to project finance (location, political risk), the various forms of financing (debt, equity, and combinations), the main sources of government backed financing to corporations (the International Finance Corporation) (IFC), the European Bank for Reconstruction and Development (EBRD), the Asian Development Bank (ADB), the Overseas Property Insurance Corporation (OPIC), government or agency guarantees, political risk coverage, the use of offshore financial centres, and the where, when and how these various organizations operate, were reviewed. Examples of all of the above, taken from the experiences of Canadian Occidental Petroleum of Calgary in the U.S., in South America, in the Middle and Far East, and in Kazakhstan, were used as illustrations. figs

  9. Canadian Mathematical Congress

    CERN Document Server


    For two weeks in August, 1975 more than 140 mathematicians and other scientists gathered at the Universite de Sherbrooke. The occasion was the 15th Biennial Seminar of the Canadian Mathematical Congress, entitled Mathematics and the Life Sciences. Participants in this inter­ disciplinary gathering included researchers and graduate students in mathematics, seven different areas of biological science, physics, chemistry and medical science. Geographically, those present came from the United States and the United Kingdom as well as from academic departments and government agencies scattered across Canada. In choosing this particular interdisciplinary topic the programme committee had two chief objectives. These were to promote Canadian research in mathematical problems of the life sciences, and to encourage co-operation and exchanges between mathematical scientists" biologists and medical re­ searchers. To accomplish these objective the committee assembled a stim­ ulating programme of lectures and talks. Six ...

  10. Canadian petroleum history bibliography

    Energy Technology Data Exchange (ETDEWEB)

    Cass, D.


    The Petroleum History Bibliography includes a list of more than 2,000 publications that record the history of the Canadian petroleum industry. The list includes books, theses, films, audio tapes, published articles, company histories, biographies, autobiographies, fiction, poetry, humour, and an author index. It was created over a period of several years to help with projects at the Petroleum History Society. It is an ongoing piece of work, and as such, invites comments and additions.

  11. Tuberculosis in Aboriginal Canadians

    Directory of Open Access Journals (Sweden)

    Vernon H Hoeppner


    Full Text Available Endemic tuberculosis (TB was almost certainly present in Canadian aboriginal people (aboriginal Canadians denotes status Indians, Inuit, nonstatus Indians and metis as reported by Statistics Canada before the Old World traders arrived. However, the social changes that resulted from contact with these traders created the conditions that converted endemic TB into epidemic TB. The incidence of TB varied inversely with the time interval from this cultural collision, which began on the east coast in the 16th century and ended in the Northern Territories in the 20th century. This relatively recent epidemic explains why the disease is more frequent in aboriginal children than in Canadian-born nonaboriginal people. Treatment plans must account for the socioeconomic conditions and cultural characteristics of the aboriginal people, especially healing models and language. Prevention includes bacillus Calmette-Guerin vaccination and chemoprophylaxis, and must account for community conditions, such as rates of suicide, which have exceeded the rate of TB. The control of TB requires a centralized program with specifically directed funding. It must include a program that works in partnership with aboriginal communities.

  12. Dictionaries of Canadian English

    Directory of Open Access Journals (Sweden)

    John Considine


    Full Text Available

    Abstract: The lexicographical record of English in Canada began with wordlists of the late eighteenth, nineteenth, and early twentieth centuries. From the beginning of the twentieth century onwards, the general vocabulary of English in Canada has been represented in bilingual and monolingual dictionaries, often adapted from American or British dictionaries. In the 1950s, several important projects were initiated, resulting in the publication of general dictionaries of English in Canada, and of dictionaries of Canadianisms and of the vocabulary of particular regions of Can-ada. This article gives an overview of these dictionaries and of their reception, contextualizing them in the larger picture of the lexicography of Canada's other official language, French, and of a number of its non-official languages. It concludes by looking at the future of English-language lexicography in Canada, and by observing that although it has, at its best, reached a high degree of sophistication, there are still major opportunities waiting to be taken.


    Opsomming: Woordeboeke van Kanadese Engels. Die leksikografiese optekening van Engels in Kanada begin met woordelyste van die laat agtiende, neëntiende en vroeë twintigste eeue. Van die begin van die twintigste eeu af en verder, is die algemene woordeskat van Engels weergegee in tweetalige en eentalige woordeboeke, dikwels met wysiginge ontleen aan Ameri-kaanse en Britse woordeboeke. In die 1950's is verskeie belangrike projekte onderneem wat gelei het tot die publikasie van algemene woordeboeke van Engels in Kanada, en van woordeboeke van Kanadeïsmes en van die woordeskat van bepaalde streke van Kanada. Hierdie artikel gee 'n oorsig van dié woordeboeke, en van hul ontvangs, deur

  13. Canadian heavy water production

    International Nuclear Information System (INIS)

    Dahlinger, A.; Lockerby, W.E.; Rae, H.K.


    The paper reviews Canadian experience in the production of heavy water, presents a long-term supply projection, relates this projection to the anticipated long-term electrical energy demand, and highlights principal areas for further improvement that form the bulk of the Canadian R and D programme on heavy water processes. Six Canadian heavy water plants with a total design capacity of 4000Mg/a are in operation or under construction. All use the Girdler-Sulphide (GS) process, which is based on deuterium exchange between water and hydrogen sulphide. Early operating problems have been overcome and the plants have demonstrated annual capacity factors in excess of 70%, with short-term production rates equal to design rates. Areas for further improvement are: to increase production rates by optimizing the control of foaming to give both higher sieve tray efficiency and higher flow rates, to reduce the incapacity due to deposition of pyrite (FeS 2 ) and sulphur (between 5% and 10%), and to improve process control and optimization of operating conditions by the application of mathematical simulations of the detailed deuterium profile throughout each plant. Other processes being studied, which look potentially attractive are the hydrogen-water exchange and the hydrogen-amine exchange. Even if they become successful competitors to the GS process, the latter is likely to remain the dominant production method for the next 10-20 years. This programme, when related to the long-term electricity demand, indicates that heavy water supply and demand are in reasonable balance and that the Candu programme will not be inhibited because of shortages of this commodity. (author)

  14. The Canadian safeguards program

    International Nuclear Information System (INIS)

    Zarecki, C.W.; Smith, R.M.


    In support of the Treaty on the Non-Proliferation of Nuclear Weapons Canada provides technical support to the International Atomic Energy Agency for the development of safeguards relevant to Canadian designed and built nuclear facilities. Some details of this program are discussed, including the philosophy and development of CANDU safeguards systems; the unique equipment developed for these systems; the provision of technical experts; training programs; liaison with other technical organizations; research and development; implementation of safeguards systems at various nuclear facilities; and the anticipated future direction of the safeguards program

  15. The amazing vanishing Canadian dermatologist: results from the 2006 Canadian Dermatology Association member survey. (United States)

    Chow, Eunice Y; Searles, Gordon E


    The 2006 Canadian Dermatology Association (CDA) member survey tracked the Canadian dermatology workforce. Information on use of nondermatologist extenders, impact of financial burden on practice style, and wait times was collected in the survey. To survey Canadian dermatologists for specialty-specific physician resource information including demographics, workload, and future career plans and compare it to results from the 2001 survey. In addition, to explore three other areas not covered in the previous survey: patient access to dermatologic care through wait times, the use of nondermatologist extenders, and potential impact of educational financial debt on practice styles. CDA members in 2006 were surveyed by mail. Follow-up mailings were done for nonresponders. Survey results were compared to those of the 2001 survey. Thirty-six percent (216 of 602) of Canadian dermatologists responded (70% in 2001). The national distribution was identical between surveys. The median age increased to 55 years; two-thirds of dermatologists are male. The median retirement age remained at 65 years. There was a shift from rural to urban practice locations; 78% practice in private offices. Three-fifths of dermatologists do mainly medical dermatology, a decrease between surveys. Pediatric dermatology decreased 10%, whereas surgical dermatology increased 52% between surveys. Fewer practitioners perform noninsured services, and half as many perform research or hospital consultations or teach medical students. Financial debt burden had no impact on selection of practice style. Median wait times for nonurgent consultations doubled from 5 to 10 weeks; follow-up visits increased from 4 to 5 weeks; noninsured consultations increased from 4 to 5 weeks. The national median wait time for a third available consultation appointment was 42 days (range 7-161 days). Seventeen percent of dermatologists reported using nondermatologist extenders. Training programs produce only 60% of new practitioners

  16. Engendering migrant health: Canadian perspectives

    National Research Council Canada - National Science Library

    Spitzer, Denise L


    ... these and other issues at the intersections of gender, immigration, and health in the lives of new Canadians. Situating their work within the context of Canadian policy and society, the contributors illuminate migrants' testimonies of struggle, resistance, and solidarity as they negotiate a place for themselves in a new country. Topics range fr...

  17. Employment and Urban Native Canadians. (United States)

    Abrahams-Maclachlan, Caryl; And Others


    Measured differences in employment issues between native Canadian Indians and a nonnative comparison group in Toronto. Given similar circumstances, found Native Canadians less formally educated and skill trained than nonnatives of comparable age, sex, and education. Respondents under 25 and over 50 earned substantially less. (Author)

  18. Canadian perspectives on food irradiation

    International Nuclear Information System (INIS)

    Kunstadt, P.


    Canada has been in the forefront of irradiation technology for some 30 years. Nearly 90 of the 140 irradiators used worldwide are Canadian-built, yet Canadian food processors have been very slow to use the technology. The food irradiation regulatory situation in Canada, the factors that influence it, and some significant non-regulatory developments are reviewed. (author)

  19. Canadian attitudes to nuclear power

    International Nuclear Information System (INIS)

    Davies, J.E.O.


    In the past ten years, public interest in nuclear power and its relationship to the environment has grown. Although most Canadians have accepted nuclear power as a means of generating electricity, there is significant opposition to its use. This opposition has effectively forced the Canadian nuclear industry to modify its behaviour to the public in the face of growing concern over the safety of nuclear power and related matters. The paper reviews Canadian experience concerning public acceptance of nuclear power, with special reference to the public information activities of the Canadian nuclear industry. Experience has shown the need for scientific social data that will permit the nuclear industry to involve the public in a rational examination of its concern about nuclear power. The Canadian Nuclear Association sponsored such studies in 1976 and the findings are discussed. They consisted of a national assessment of public attitudes, two regional studies and a study of Canadian policy-makers' views on nuclear energy. The social data obtained were of a base-line nature describing Canadian perceptions of and attitudes to nuclear power at that time. This research established that Canadian levels of knowledge about nuclear power are very low and that there are marked regional differences. Only 56% of the population have the minimum knowledge required to indicate that they know that nuclear power can be used to generate electricity. Nevertheless, 21% of informed Canadians oppose nuclear power primarily on the grounds that it is not safe. Radiation and waste management are seen to be major disadvantages. In perspective, Canadians are more concerned with inflation than with the energy supply. About half of all Canadians see the question of energy supplies as a future problem (within five years), not a present one. A more important aspect of energy is seen by the majority of Canadians to be some form of energy independence. The use of data from these studies is no easy

  20. Canadian mercury inventories: the missing pieces

    Energy Technology Data Exchange (ETDEWEB)

    Hagreen, L.A.; Lourie, B.A. [Summerhill Group, Toronto, ON (Canada)


    Research was conducted to determine the significance of the deliberate use of mercury in products in Canada and the associated releases from these sources. Through a combination of literature review and new calculations, the reservoir, flux, and releases of mercury from eight product sources were calculated, and these results compared to historical Canadian inventories. Mercury contributions from the waste sector were also assessed and compared to total Canadian mercury releases and to mercury releases from coal-fired generating stations. Results suggest the use and release of mercury associated with its use in products is 4.5 times what previous inventories indicate. Including dental amalgam and sewage sludge, the total releases of mercury to all environmental compartments in Canada totals 20 tonnes per year. This accounts for less than one-half of the 44 tonnes per year of mercury released from mercury waste disposal each year in Canada. Waste mercury contributions from hazardous waste imports, unknown product sources, and incomplete information on the use of mercury in known products may account for this discrepancy. Waste-related mercury releases and transfers for disposal and recycling are 11 times greater than that of electricity generation in Canada. Results indicate that Canadian inventories have underestimated the significance of mercury use and release associated with products, calling into question the current priorities for mercury management. This paper was developed as part of a panel session at the International Joint Commission 'Mercury in the Ecosystem' workshop, February 26-27, 2003, Windsor, ON, Canada, as a complement to the information on Canadian Inventories presented by Luke Trip (Senes Consulting, Ottawa, ON, Canada).

  1. Enclosure enhancement of flight performance

    Directory of Open Access Journals (Sweden)

    Mehdi Ghommem


    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.

  2. Enclosure enhancement of flight performance

    KAUST Repository

    Ghommem, Mehdi


    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.

  3. Canadian health surveys, 1950 1997. (United States)

    Kendall, O; Lipskie, T; MacEachern, S


    This paper provides a brief history of Canadian health surveys and a review of health or health-related surveys from the first national household survey in 1950/51 to the present time. Surveys have evolved from collecting information on health care utilization, health status and some risk behaviours to a wider range of health determinants following the 1974 Lalonde report. In addition to the occasional cross-sectional surveys, there are periodic surveys, longitudinal surveys, school-based surveys and surveys based on subgroups in the population or specific topic areas. The survey review is presented in the following four tables: Table 1 summarizes national surveys including such information as the date(s) and frequency of data collection, topic areas, target population, sample size and response rate for each survey; Table 2 provides the same information for provincial surveys; both tables point to Table 3, which supplements the previous information with survey sponsors and contacts; Table 4 provides similar information for commercial surveys. This reference, which will be updated periodically, is intended to act as a source of information and support in the development of new surveys.

  4. Bridging content and EFL: a one-day ESP workshop for flight instructors

    Directory of Open Access Journals (Sweden)

    Turner, Dorothy


    Full Text Available This workshop allows an ESP provider with limited specialized knowledge in the field of aviation to train English-speaking flight instructors in basic EFL communication strategies. While the present workshop is based on a Canadian model of flight instruction, it can be easily adapted to other jurisdictions

  5. Dictionaries of Canadian English | Considine | Lexikos

    African Journals Online (AJOL)

    ... its best, reached a high degree of sophistication, there are still major opportunities waiting to be taken. keywords: dictionary, lexicography, canadian english, canadianisms, national dictionaries, canadian french, canadian first nations lan-guages, bilingual dictionaries, regional dictionaries, unfinished diction-ary projects ...

  6. Engendering migrant health: Canadian perspectives

    National Research Council Canada - National Science Library

    Spitzer, Denise L


    "Voluntary migrants to Canada are generally healthier than the average Canadian, but after ten years in the country they report poorer health and higher rates of chronic disease than those born here...

  7. Canadian gas supply : an update

    International Nuclear Information System (INIS)

    Rochefort, T.


    An overview of the daily production from the Western Canada Sedimentary Basin (WCSB) from 1986 to 1997 was presented. This presentation also outlined Canadian production trends, Canadian reserves and resources, and supply challenges. Ultimate conventional marketable gas from the WCSB, the Scotian Shelf, the Beaufort Sea and Canada's Arctic region was estimated at 591 TCF. Issues regarding supply and demand of natural gas such as the impact of electricity restructuring on pricing, generation fuel mix, the capacity of the U.S. market to absorb Canadian heavy oil production, and the influence of the rate of technological advances on supply and demand were outlined. The overall conclusion confirmed the health and competitiveness of the Canadian upstream sector and expressed confidence that the WCSB can support rising levels of production to meet the expected continued market growth. tabs., figs

  8. Engendering migrant health: Canadian perspectives

    National Research Council Canada - National Science Library

    Spitzer, Denise L


    .... What contributes to this deterioration, and how can its effects be mitigated? Engendering Migrant Health brings together researchers from across Canada to address the intersections of gender, immigration, and health in the lives of new Canadians...

  9. The Canadian heavy water situation

    International Nuclear Information System (INIS)

    Dahlinger, A.

    The Canadian heavy water industry is analyzed. Supply and demand are predicted through 1985. Pricing is broken down into components. Backup R and D contributes greatly to process improvements. (E.C.B.)

  10. Comparative Canadian-American Studies. (United States)

    Ezell, Macel D.


    Outlines topics for comparative study of Canada and the United States. Includes geography, politics, settlement patterns, economics, education, religion, and sports. Suggests materials to aid teachers in formulating comparative approaches to Canadian and U.S. studies. (DB)

  11. Bisphosphonate ISS Flight Experiment (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


    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

  12. Canadian perspectives on food irradiation

    International Nuclear Information System (INIS)

    Kunstadt, P.


    Canada has been in the forefront of irradiation technology for over 30 years. Some 83 of the 147 irradiators used worldwide are Canadian-built, yet Canadian food processors have been very slow to use the technology. This paper is an update on the food irradiation regulatory situation in Canada and the factors that influence it. It also reviews some significant non-regulatory developments. (author)

  13. Fulminant Pneumococcal Pericarditis in a Previously Healthy Patient. (United States)

    Trpkov, Cvetan; Nath, Ermin; Moon, Michael; Windram, Jonathan; Graham, Michelle M


    Purulent pericarditis is a rare acutely life-threatening condition. Initial symptoms, signs, and investigations can be nonspecific. Echocardiography is invaluable for establishing the diagnosis and initial management. We present a case of a previously healthy patient with purulent pericarditis caused by Streptococcus pneumoniae in the absence of a primary focus of infection. The patient deteriorated rapidly with cardiac tamponade and septic shock and was managed successfully by a combined medical and surgical approach. Copyright © 2016 Canadian Cardiovascular Society. Published by Elsevier Inc. All rights reserved.

  14. Canadian leadership in energy

    International Nuclear Information System (INIS)


    Canada's energy is complex and an important resource as it fuels and funds the economy. The unique character of Canada's energy production and consumption provides strength to the country. The purpose of this booklet was to highlight Canada's energy production and consumption and to demonstrate Canada's rank globally with other major global energy players. The document also presented information on the value of Canada's energy exports, Canada's relationship with the United States, and Canada's energy-related carbon dioxide emissions. Specifically, the document discussed Canada's energy in a global context; the value of Canada's energy exports; domestic value of energy; Canada's unique energy mix; Canada's electricity mix; Canada's carbon dioxide emissions; energy strategies; and the importance of energy to Canadians. It was concluded that there are 14 federal, provincial and territorial jurisdictions managing their respective energy resources. All of these regions, with the exception of Saskatchewan have produced an energy strategy document or a climate change action plan focusing on 8 areas of action, notably awareness; benefit; efficiency; development; diversification; electricity; and emissions. refs., tabs., figs.

  15. Canadian programme overview

    International Nuclear Information System (INIS)

    Fluke, R.J.


    In a severe accident, hydrogen is released into containment. When it is well mixed, the hydrogen mixture is nonflammable because there is sufficient dilution by the large containment volume. This is the desired end point. However, the release may occur into smaller compartments of containment, stratification may occur, and local pockets of flammable mixtures may arise if hydrogen is released faster than processes that mix and disperse it. Long term hydrogen generation from water radiolysis must also be considered. Hydrogen mitigation and control strategies adopted or considered in Canada include fanforced mixing, glow plug igniters, recombiners, venting through filters, or combinations of these. The Canadian hydrogen programme is focussed on understanding hydrogen combustion behaviour and providing the data needed to demonstrate the adequacy of hydrogen mitigation and control strategies. The programme includes both experimental and modelling components of hydrogen combustion and distribution. Experiments include mixing tests, deflagration tests, diffusion flames, transition from deflagration to detonation, and testing the performance of igniters and recombiners. Modelling is focussing on the GOTHIC code as an industry standard. Detailed three dimensional modelling of gas mixing and combustion are underway, and a code validation matrix is being assembled for validation exercises. Significant progress has been made, highlights from which are being presented at this workshop. (author)

  16. Canadian leadership in energy

    Energy Technology Data Exchange (ETDEWEB)



    Canada's energy is complex and an important resource as it fuels and funds the economy. The unique character of Canada's energy production and consumption provides strength to the country. The purpose of this booklet was to highlight Canada's energy production and consumption and to demonstrate Canada's rank globally with other major global energy players. The document also presented information on the value of Canada's energy exports, Canada's relationship with the United States, and Canada's energy-related carbon dioxide emissions. Specifically, the document discussed Canada's energy in a global context; the value of Canada's energy exports; domestic value of energy; Canada's unique energy mix; Canada's electricity mix; Canada's carbon dioxide emissions; energy strategies; and the importance of energy to Canadians. It was concluded that there are 14 federal, provincial and territorial jurisdictions managing their respective energy resources. All of these regions, with the exception of Saskatchewan have produced an energy strategy document or a climate change action plan focusing on 8 areas of action, notably awareness; benefit; efficiency; development; diversification; electricity; and emissions. refs., tabs., figs.

  17. Flight Dynamics and Controls Discipline Overview (United States)

    Theodore, Colin R.


    This presentation will touch topics, including but not limited to, the objectives and challenges of flight dynamics and controls that deal with the pilot and the cockpit's technology, the flight dynamics and controls discipline tasks, and the full envelope of flight dynamics modeling. In addition, the LCTR 7x10-ft wind tunnel test will also be included along with the optimal trajectories for noise abatement and its investigations on handling quality. Furthermore, previous experiments and their complying results will also be discussed.

  18. Flight Software Math Library (United States)

    McComas, David


    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.

  19. Canadian perspectives in evaluating transparency

    International Nuclear Information System (INIS)

    Herwig, L.


    The Canadian Nuclear Safety Commission's mission is to regulate the use of nuclear energy and materials to protect the health, safety, and security of Canadians and the environment, as well as to respect Canada's international commitments on the peaceful use of nuclear energy. In 2001, the CNSC established a vision to be one of the best nuclear regulators in the world and established four strategic priorities of effectiveness, transparency, excellence in staff, and efficiency. While fulfilling a very comprehensive mandate, the CNSC operates with a. very clear vision of its clientele - the Canadian people. That commitment guides every employee and every action of the CNSC and ensures a firm commitment to transparency. The presentation will begin with a brief overview of the worldwide context of transparency and transparency measurement, with a look at what lessons can be learned from other organizations and initiatives. It will look broadly at the Canadian context and the government framework that establishes transparency, including the keystone legislation of the Access to Information Act. The presentation will then focus on the Canadian Nuclear Safety Commission. The CNSC is firmly committed to putting additional measures in place to ensure transparency, which is being done concurrently with an overall organisational performance measurement system. It is within this framework that the presentation will address the transparency efforts at the CNSC as well transparency measurement activities. And, finally, the presentation will look at future directions for transparency and its measurement at the CNSC. (author)

  20. Iced Aircraft Flight Data for Flight Simulator Validation (United States)

    Ratvasky, Thomas P.; Blankenship, Kurt; Rieke, William; Brinker, David J.


    NASA is developing and validating technology to incorporate aircraft icing effects into a flight training device concept demonstrator. Flight simulation models of a DHC-6 Twin Otter were developed from wind tunnel data using a subscale, complete aircraft model with and without simulated ice, and from previously acquired flight data. The validation of the simulation models required additional aircraft response time histories of the airplane configured with simulated ice similar to the subscale model testing. Therefore, a flight test was conducted using the NASA Twin Otter Icing Research Aircraft. Over 500 maneuvers of various types were conducted in this flight test. The validation data consisted of aircraft state parameters, pilot inputs, propulsion, weight, center of gravity, and moments of inertia with the airplane configured with different amounts of simulated ice. Emphasis was made to acquire data at wing stall and tailplane stall since these events are of primary interest to model accurately in the flight training device. Analyses of several datasets are described regarding wing and tailplane stall. Key findings from these analyses are that the simulated wing ice shapes significantly reduced the C , max, while the simulated tail ice caused elevator control force anomalies and tailplane stall when flaps were deflected 30 deg or greater. This effectively reduced the safe operating margins between iced wing and iced tail stall as flap deflection and thrust were increased. This flight test demonstrated that the critical aspects to be modeled in the icing effects flight training device include: iced wing and tail stall speeds, flap and thrust effects, control forces, and control effectiveness.

  1. Chernobyl - a Canadian technical perspective

    International Nuclear Information System (INIS)

    Howieson, J.Q.; Snell, V.G.


    In this report we present the design review done to date in Canada by AECL. From the Canadian point of view it covers: 1) relevant information on the Chernobyl design and the accident, both as presented by the Soviets at the Post-Accident Review Meeting (PARM) held in Vienna from August 25-29, 1986, and as deduced from publicly available Soviet documentation; and 2) details of AECL's technical review of the CANDU PHWR (Pressurized Heavy Water Reactor) against the background of the Chernobyl accident, and implications of the Chernobyl accident. Reviews of operational aspects are underway by the Canadian electrical utilities and a review by the Canadian regulatory agency (the Atomic Energy Control Board) is near completion

  2. Responsible Canadian energy progress report

    Energy Technology Data Exchange (ETDEWEB)



    The Canadian Association of Petroleum Producers (CAPP) represents oil and gas companies throughout Canada; its members produce over 90% of Canada's natural gas and crude oil output. The aim of the Association is to improve the economics of the Canadian upstream petroleum sector in an environmentally and socially responsible way. The aim of this Responsible Canadian Energy report is to present the performance data of CAPP's members for the year 2009. Data, trends, and performance analyses are provided throughout the document. This analysis makes it possible to determine where progress has been made and where performance improvement is necessary. It also presents success stories and best practices so that other companies can learn from them how to improve their own performance. This paper provides useful information on the performance of the upstream petroleum industry in Canada and highlights where the focus should be for further improvement in its performance.

  3. Enlisting Canadians for greater impact | IDRC - International ...

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

    Image. IDRC Communications. Increased collaboration, bolder solutions. OBJECTIVE: IDRC will engage Canadians in research for development through ... The Global Citizenship Small Grants, for example, enable Canadian organizations to address issues of social and economic justice, environmental protection, ...

  4. Issues in Canadian LLRW management

    International Nuclear Information System (INIS)

    Charlesworth, D.H.


    Some of the issues which are of concern in Canada are similar to those being discussed in the US because Canadian low-level radioactive waste (LLRW) production is similar in quantity and characteristics to that which will be handled by some state compacts. This paper gives a Canadian viewpoint of: the choice between interim storage and permanent disposal; the importance of considering inadvertent intrusion; the role of waste categorization and stability; and the concerns in assessing disposal performance. The discussion is related to Atomic Energy of Canada Limited's LLRW disposal program, and its approach to resolving these issues

  5. Canadian attitudes to nuclear power

    International Nuclear Information System (INIS)

    Davies, J.E.O.; Dobson, J.K.; Baril, R.G.


    A national assessment was made of public attitudes towards nuclear power, along with regional studies of the Maritimes and mid-western Canada and a study of Canadian policy-makers' views on nuclear energy. Public levels of knowledge about nuclear power are very low and there are marked regional differences. Opposition centers on questions of safety and is hard to mollify due to irrational fear and low institutional credibility. Canadians rate inflation as a higher priority problem than energy and see energy shortages as a future problem (within 5 years) and energy independence as a high priority policy. (E.C.B.)

  6. Transnational archives: the Canadian case

    Directory of Open Access Journals (Sweden)

    Julia Creet


    Full Text Available This paper is a brief overview of the concept of the transnational archive as a counterpoint to the idea that a national archive is necessarily a locus of a static idea of nation. The Canadian national archives is used as a case study of an archives that was transnational in its inception, and one that has continued to change in its mandate and materials as a response to patterns in migration and changing notions of multiculturalism as a Canadian federal policy. It introduces the most recent formation of the transnational archive and its denizens: the genealogical archive inhabited by family historians.

  7. Financial outlook for the Canadian gas industry

    International Nuclear Information System (INIS)

    Friedenberg, B.


    The financial outlook for the Canadian gas industry depends on the outlook for gas prices at Canadian producing basins, the cost of producing in Canada and the volume of production of Canadian natural gas. Price, cost and volume determine the health of the Canadian industry. Industry's costs are the basis of the supply (volume) offered on the market and price is determined by the interaction of supply and demand. (author)

  8. What predicts performance in Canadian dental schools? (United States)

    Smithers, S; Catano, V M; Cunningham, D P


    The task of selecting the best dental applicants out of an extremely competitive applicant pool is a problem faced annually by dental faculties. This study examined the validity of both cognitive and noncognitive factors used for selection to Canadian dental schools. Interest in personality measurement and the prediction offered by personality measures has escalated and may be applied to the selection of dental candidates. Therefore, the study also assessed whether the addition of a personality measure would increase the validity of predicting performance beyond that achieved by an interview and the Dental Aptitude Test. Results suggest that an interview may be useful in identifying specific behavioral characteristics deemed important for success in dental training. Consistent with previous research, results show that the Dental Aptitude Test is a good predictor of preclinical academic success, with prediction declining when clinical components of the program are introduced into the criterion. Results from the personality measure indicated that Openness to Experience was significantly related to aspects of clinical education, although, contrary to expectations, this relationship was negative. A facet of Openness, Ideas, together with Positive Emotions, a facet of Extroversion, improved prediction of performance in clinical studies beyond that provided by the Dental Aptitude Test and the Interview. Implications of the findings are discussed, and recommendations regarding the admission process to Canadian dental programs are offered.

  9. Canadian International Food Security Research Fund (CIFSRF ...

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

    Canadian International Food Security Research Fund (CIFSRF). The Canadian International Food Security Research Fund (CIFS-RF) is a collaborative program of the Canadian International Development Agency (CIDA) and IDRC valued at CA $61 654 707 (CIDA: CA $50 000 000; IDRC: CA $11 654 707). The program ...

  10. Flight Test Series 3: Flight Test Report (United States)

    Marston, Mike; Sternberg, Daniel; Valkov, Steffi


    This document is a flight test report from the Operational perspective for Flight Test Series 3, a subpart of the Unmanned Aircraft System (UAS) Integration in the National Airspace System (NAS) project. Flight Test Series 3 testing began on June 15, 2015, and concluded on August 12, 2015. Participants included NASA Ames Research Center, NASA Armstrong Flight Research Center, NASA Glenn Research Center, NASA Langley Research center, General Atomics Aeronautical Systems, Inc., and Honeywell. Key stakeholders analyzed their System Under Test (SUT) in two distinct configurations. Configuration 1, known as Pairwise Encounters, was subdivided into two parts: 1a, involving a low-speed UAS ownship and intruder(s), and 1b, involving a high-speed surrogate ownship and intruder. Configuration 2, known as Full Mission, involved a surrogate ownship, live intruder(s), and integrated virtual traffic. Table 1 is a summary of flights for each configuration, with data collection flights highlighted in green. Section 2 and 3 of this report give an in-depth description of the flight test period, aircraft involved, flight crew, and mission team. Overall, Flight Test 3 gathered excellent data for each SUT. We attribute this successful outcome in large part from the experience that was acquired from the ACAS Xu SS flight test flown in December 2014. Configuration 1 was a tremendous success, thanks to the training, member participation, integration/testing, and in-depth analysis of the flight points. Although Configuration 2 flights were cancelled after 3 data collection flights due to various problems, the lessons learned from this will help the UAS in the NAS project move forward successfully in future flight phases.

  11. Symposium Conclusion: Women's cardiovascular health after bed rest or space flight (United States)

    Hughson, Richard L.; Arbeille, Phillipe; Shoemaker, Kevin; Edgell, Heather

    The Canadian Space Agency has recently funded research on two long-duration missions to study cardiovascular deconditioning associated with bed rest or space flight. The first, Women's International Space simulation for Exploration (WISE-2005) examined the responses during a 60-day head down bed rest (HDBR) of 24 women with or without a countermeasure that consisted of supine treadmill running within a lower body negative pressure (LBNP) device followed by 10-minutes resting LBNP and on different days high intensity resistance exercise on a flywheel device. The second study, Cardiovascular and cerebrovascular Control on return from the International Space Station (CCISS) is currently underway with two male astronauts tested and the first woman anticipated later this year. Women have been previously identified as being more susceptible to orthostatic intolerance than men after both bed rest and space flight studies. Thus, in the WISE-2005 study we examined responses of the cardiovascular system after HDBR in women and compared these to previously published data from men. We found that after HDBR women have a greater increase in heart rate with infusion of the drug isoproterenol and this was consistent with observations in men. However, during drug infusion the women had a reduction in leg vascular resistance while men had an increase. The exercise countermeasure group had preserved heart rate and leg vascular resistance responses to drug infusion. The ability to vasoconstrict the legs and splanchnic region is critical to maintenance of upright posture after HDBR and space flight. In the WISE-2005 study, subjects who were able to constrict the legs and/or splanchnic region after HDBR were much less likely to have a marked drop in blood pressure before the end of 10-minutes upright tilt, and subjects who performed the countermeasure were more likely to be in this group of tilt test finishers. These data provide new insight into mechanisms that might be responsible for

  12. Electronic Flight Bag (EFB) 2015 Industry Survey. (United States)


    This document provides an overview of Electronic Flight Bag (EFB) hardware and software capabilities, including portable electronic devices (PEDs) used as EFBs, as of July 2015. This document updates and replaces the Volpe Centers previous EFB ind...

  13. Electronic flight bag (EFB) : 2010 industry survey (United States)


    This document provides an overview of Electronic Flight Bag (EFB) systems and capabilities, as of June 2010. This document updates and replaces the April 2007 EFB Industry Review (Yeh and Chandra, 2007). As with the previous industry survey, the focu...

  14. Canadian ERTS program progress report (United States)

    Morley, L. W.; Mcquillan, A. K.


    Progress of the Canadian ERTS program is provided along with statistics on the production and role of ERTS images both from the CCRS in Ottawa and from the Prince Albert Saskatchewan satellite station. The types of products, difficulties of production and some of the main applications in Canada are discussed.

  15. Nuclear regulation - the Canadian approach

    International Nuclear Information System (INIS)

    Jennekens, J.


    Although the Atomic Energy Control Board was established 35 years ago the basic philosophy of nuclear regulation in Canada and the underlying principles of the regulatory process remain essentially unchanged. This paper outlines the Canadian approach to nuclear regulation and explains in practical terms how the principles of regulation are applied. (author)

  16. Engendering migrant health: Canadian perspectives

    National Research Council Canada - National Science Library

    Spitzer, Denise L


    .... Focusing on the context of Canadian policy and society, the contributors illuminate migrants' testimonies of struggle, resistance, and solidarity as they negotiate a place for themselves in a new country. Topics range from the difficulties of Francophone refugees and the changing roles of fathers, to the experiences of queer newcomers and the importance of social unity to communal and individual health."--pub. desc.

  17. Liquid fuels from Canadian coals

    Energy Technology Data Exchange (ETDEWEB)

    Taylor, G.W.


    In Canadian energy planning, the central issue of security of supply must be addressed by developing flexible energy systems that make the best possible use of available resources. For liquid fuel production, oil sands and heavy oil currently appear more attractive than coal or biomass as alternatives to conventional crude oil, but the magnitude of their economic advantage is uncertain. The existence of large resources of oil sands, heavy oils, natural gas and low-sulfur coals in Western Canada creates a unique opportunity for Canadians to optimize the yield from these resources and develop new technology. Many variations on the three basic liquefaction routes - hydroliquefaction, pyrolysis and synthesis - are under investigation around the world, and the technology is advancing rapidly. Each process has merit under certain circumstances. Surface-mineable subbituminous and lignite coals of Alberta and Saskatchewan appear to offer the best combination of favorable properties, deposit size and mining cost, but other deposits in Alberta, Nova Scotia and British Columbia should not be ruled out. The research effort in Canada is small by world standards, but it is unlikely that technology could be imported that is ideally suited to Canadian conditions. Importing technology is undesirable: innovation or process modification to suit Canadian coals and markets is preferred; coprocessing of coal liquids with bitumen or heavy oils would be a uniquely Canadian, exportable technology. The cost of synthetic crude from coal in Canada is uncertain, estimates ranging from $113 to $220/m/sup 3/ ($18 to $35/bbl). Existing economic evaluations vary widely depending on assumptions, and can be misleading. Product quality is an important consideration.

  18. Transferrin variation and evolution of Canadian barren-ground caribou

    Directory of Open Access Journals (Sweden)

    Knut H. Røed


    Full Text Available Blood samples were obtained from 95 barren-ground caribou (Rangifer tarandus groenlandicus of the Beverly herd in Northwest Territories, Canada. Polyacrylamid gel electrophoresis was used to score for genetic variation in the locus coding for transferrin. The pattern of allele frequency distribution are compared with previously reported values of Eurasian tundra reindeer (R.t. tarandus, Alaska caribou (R.t. granti, Peary caribou (R.t. pearyi, and Svalbard reindeer (R.t. platyrhynchus. In the Beverly herd a total of 21 different transferrin alleles were detected. The amount of genetic variation was higher in the Canadian barren-ground caribou than what has been detected in other subspecies of reindeer/caribou. Highly gene-tical differences in the allele frequencies were detected between the Canadian barren-ground caribou and the other subspecies. The genetic identity analyses indicates approximately the same amount of genetic differentiation when the Canadian barren-ground caribou are compared with Alaska caribou as with the Peary caribou. The allele frequency pattern could be explained by a possible origin of the Canadian barren-ground caribou from an ancestral population which was genetical influenced by animals surviving the We-ichselian glaciation in refugia both in high Arctic, in Beringia, and south of the ice sheet.

  19. Change readiness for SAP in the Canadian healthcare system. (United States)

    O'Neill, Mary Lou; Downer, Pauline


    The study described in this article was designed to assess the change readiness for e-business cost management systems (particularly SAP) within the Canadian healthcare system. Previous studies and experts suggest that change readiness is an important variable in the application of e-business cost management system implementation. One hundred and fifty-four chief executive officers within the Canadian healthcare system were surveyed. The response rate was 25.9 percent. The survey included a demographic sheet, which supported a better understanding of the profile of Canadian healthcare CEOs, their operational budget responsibilities, and their feelings toward e-business cost management systems. A change readiness instrument reviewed CEOs' change readiness scores in relation to four independent variables (implementation of an e-business cost management system, healthcare restructuring, budget size and tenure of the CEO). There was a significant difference between change readiness scores and the implementation of an e-business cost management system. Given the small sample size (n = 40), findings are limited. However the study offers more information on this issue than is found in the Canadian healthcare literature to date.

  20. Provincialism, Rurality and Canadian Masculinity

    Directory of Open Access Journals (Sweden)

    Thomas Dunk


    Full Text Available Images of provincial rural life are often key symbols in the construction of national identities, even in highly urbanized wealthy nations. Some 60 percent of the Canadian population lives in just four urban concentrations around Toronto, Montreal, Vancouver, and the Calgary-Edmonton corridor and a very significant proportion consists of immigrants, many of them from Asia, Africa, the Caribbean and South America. Canada is still a dominion within the British Commonwealth but everyday metropolitan life in Canada is far more diverse and international than the historic connections to Britain, or France, might suggest. Nonetheless, it is the provincial hinterlands and rural regions that are most often used to imagine Canada and Canadians.

  1. The prospects for Canadian uranium

    International Nuclear Information System (INIS)

    Salaff, S.


    The 1980s have seen a decline in markets for uranium concentrate, largely as a result of falling estimates for reactor fuel requirements and rising inventories. Spot market prices fell to $44 in September 1982, but have since risen back to $60. World production also fell in 1982 and is not expected to increase significantly before 1990. Some opportunities exist for Canadian producers with new low-cost deposits to replace high-cost producers in Canada and other countries, particularly the United States. There will be strong competition between Canadian producers as well as from Australia. Australia's reserves are somewhat larger than Canada's, although the reported ore grades tend to be lower than those of Saskatchewan

  2. Canadian accelerator breeder system development

    International Nuclear Information System (INIS)

    Schriber, S.O.


    A shortage of fissile material at a reasonable price is expected to occur in the early part of the twenty-first century. Converting fertile material to fissile material by electronuclar methods is an option that can extend th world's resources of fissionable material, supplying fuel for nuclear power stations. This paper presents the rationale for electronuclear breeders and describes the Canadian development program for an accelerator breeder facility that could produce 1 Mg of fissile material per year

  3. Reframing the Canadian Oil Sands


    Patchett, Merle M; Lozowy, A


    Reframing the Canadian Oil Sands” is a collaborative exchange between photographer Andriko Lozowy and cultural geographer Merle Patchett that engages photography and photographic theory to evoke a more critical and politically meaningful visual engagement with the world’s largest capital oil project. Since the appearance of Edward Burtynsky’s aerial and abstracted photographic-mappings of the region, capturing the scale of the Oil Sands from ‘on high’ has become the dominant visual imaginary....

  4. Canadian wind energy industry directory

    International Nuclear Information System (INIS)


    The companies and organizations involved, either directly or indirectly, in the wind energy industry in Canada, are listed in this directory. Some U.S. and international companies which are active or interested in Canadian industry activities are also listed. The first section of the directory is an alphabetical listing which includes corporate descriptions, company logos, addresses, phone and fax numbers, e-mail addresses and contact names. The second section contains 54 categories of products and services associated with the industry

  5. Mercury in Canadian crude oil

    International Nuclear Information System (INIS)

    Hollebone, B.P.


    Estimates for average mercury concentrations in crude oil range widely from 10 ng/g of oil to 3,500 ng/g of oil. With such a broad range of estimates, it is difficult to determine the contributions of the petroleum sector to the total budget of mercury emissions. In response to concerns that the combustion of petroleum products may be a major source of air-borne mercury pollution, Environment Canada and the Canadian Petroleum Products Institute has undertaken a survey of the average total mercury concentration in crude oil processed in Canadian refineries. In order to calculate the potential upper limit of total mercury in all refined products, samples of more than 30 different types of crude oil collected from refineries were measured for their concentration of mercury as it enters into a refinery before processing. High temperature combustion, cold vapour atomic absorption and cold vapour atomic fluorescence were the techniques used to quantify mercury in the samples. The results of the study provide information on the total mass of mercury present in crude oil processed in Canada each year. Results can be used to determine the impact of vehicle exhaust emissions to the overall Canadian mercury emission budget. 17 refs., 2 tabs., 2 figs

  6. Canadian fusion fuels technology project

    International Nuclear Information System (INIS)


    The Canadian Fusion Fuels Technology Project was launched in 1982 to coordinate Canada's provision of fusion fuels technology to international fusion power development programs. The project has a mandate to extend and adapt existing Canadian tritium technologies for use in international fusion power development programs. 1985-86 represents the fourth year of the first five-year term of the Canadian Fusion Fuels Technology Project (CFFTP). This reporting period coincides with an increasing trend in global fusion R and D to direct more effort towards the management of tritium. This has resulted in an increased linking of CFFTP activities and objectives with those of facilities abroad. In this way there has been a continuing achievement resulting from CFFTP efforts to have cooperative R and D and service activities with organizations abroad. All of this is aided by the cooperative international atmosphere within the fusion community. This report summarizes our past year and provides some highlights of the upcoming year 1986/87, which is the final year of the first five-year phase of the program. AECL (representing the Federal Government), the Ministry of Energy (representing Ontario) and Ontario Hydro, have given formal indication of their intent to continue with a second five-year program. Plans for the second phase will continue to emphasize tritium technology and remote handling

  7. The Radioisotope Industry - Canadian Experience

    International Nuclear Information System (INIS)

    Evans, D. J. R.


    Canada is the world's largest producer, while the Canadian share of total cyclotron isotope production is very much smaller. This is a direct reflection of the country's nuclear history. The NRC reactor, which went critical in 1947, was at that time the world's highest flux nuclear reactor. NRC, which followed in 1956, gave access to even higher fluxes and irradiation volumes. Isotope production in Canada began almost coincidentally with the start-up of NRC and I-131 was exported to the United Stated in 1948, followed by C-14 before 1950. The above specific isotope applications, together with the earlier commentary on the overall Canadian historical experience clearly indicates the value of an indigenous isotope industry in Canada's case. It should be noted, of course, that the Canadian domestic applications base also involves all the other technological areas covered by other speakers at this Conference. While Canada is unique in that domestic self-sufficiency has led to an even more important export industry, there is no doubt that the development of domestic self-reliance in the isotope applications area is in its own right a valuable off-shoot of any country's nuclear R and D and power programs

  8. Providing cleaner air to Canadians

    International Nuclear Information System (INIS)


    This booklet is designed to explain salient aspects of the Ozone Annex, negotiated and signed recently by Canada and the United States, in a joint effort to improve air quality in North America. By significantly reducing the transboundary flows of air pollutants that cause smog, the Ozone Annex will benefit some 16 million people in central and eastern Canada and provide an example for a future round of negotiations to address concerns of the millions of Canadians and Americans who live in the border area between British Columbia and Washington State. The brochure provide summaries of the Canadian and American commitments, focusing on transportation, monitoring and reporting. The Ozone Annex complements other air quality initiatives by the Government of Canada enacted under the Environmental Protection Act, 1999. These measures include regulations to reduce sulphur content to 30 parts per million by Jan 1, 2005; proposing to restrict toxic particulate matter (PM) to less than 10 microns; establishing daily smog forecasts in the Maritimes and committing to a national program built upon existing smog advisories and forecasts in Quebec, Ontario and British Columbia; and investing in more clean air research through the newly created Canadian Foundation for Climate and Atmospheric Sciences

  9. Aerodynamic maneuvering hypersonic flight mechanics (United States)

    Desautel, Dick


    The emergence of current high-interest mission involving aeromaneuvering hypersonic flight has given rise to the corresponding need for preliminary design and performance analyses of such vehicles. This need in turn has motivated efforts to develop simplified analytical and computational methods for parametric analysis of maneuvering hypersonic flight under conditions appropriate to the mission involved. The effort included a review of different formulations of the general equations of motion, their associated coordinate frames, various simplifications of the equations, and previously achieved analytical solutions. This study sought to both extend previous solution methods and to develop new ones. In addition, evaluation of the literature and developing a systematic perspective on the knowledge it represents proved to be a major portion of the effort.

  10. Canadian-based aircrew exposure from cosmic radiation on commercial airline routes

    Energy Technology Data Exchange (ETDEWEB)

    McCall, M.J.; Green, A.R.; Lewis, B.J.; Bennett, L.G.I.; Pierre, M. [Royal Military College of Canada, Kingston, Ontario (Canada); Schrewe, U. [Physikalisch Technische Bundesanstalt, Braunschweig (Germany); O' Brien, K. [Northern Arizona Univ., Flagstaff, Arizona (United States); Feldsberger, E. [University of Graz (Austria)


    As part of a continuing study on the occupational exposure of Canadian-based aircrew, a Tissue Equivalent Proportional Counter (TEPC) was used to monitor this exposure on 64 flight routes spanning a range of geomagnetic latitudes between 40{sup o}S and 85{sup o}N. The microdosimetric data obtained from these flights were compared to that obtained from several terrestrial sources and were used to characterize the radiation field at jet altitudes. From 20 000 ambient dose equivalent rates obtained at various altitudes and geomagnetic latitudes, a correlation was developed to allow for the interpolation of the dose rate for any global position, altitude and date. By integration of this dose rate function over a great circle flight path, a predictive code was developed to provide a total ambient dose equivalent prediction for a given flight. (author)

  11. Manned Flight Simulator (MFS) (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...

  12. Conference summaries. Canadian Nuclear Association 29. annual conference; Canadian Nuclear Society 10. annual conference

    International Nuclear Information System (INIS)


    Separate abstracts were prepared for 15 papers from the twenty-ninth Annual Conference of the Canadian Nuclear Association. Abstracts were also prepared for the 102 papers from the tenth Annual Conference of the Canadian Nuclear Society

  13. Canadian gas exports to U.S. set fourth consecutive record

    International Nuclear Information System (INIS)



    Canadian natural gas exports in 1991 set a record for the fourth year in a row, Canadian Enerdata Ltd. reports. The Markham, Ont., consulting firm the shipments of gas to the U.S., Canada's only export customer for that fuel, jumped 16.8% in 1991 to 1.679 tcf. That volume replaced the previous record of 1.437 tcf exported just 1 year earlier. Enerdata figures show the 1991 export performance increased Canada's share of the U.S. gas market to a record high of 8.7%, up from 7.7% in 1990, 7.1% in 1989, 7.0% in 1988, 5.9% in 1987, and, only 4.6% in 1986. This paper reports that the performance positions Canadian exporters well for larger increases in volume and price as the U.S. gas market tightens and Canadian gas export capacity is increased in the mid-1990s

  14. Why do Chinese Canadians not consult mental health services: health status, language or culture? (United States)

    Chen, Alice W; Kazanjian, Arminée; Wong, Hubert


    Data from the Canadian Community Health Survey Cycle 1.1 showed that Chinese immigrants to Canada and Chinese individuals born in Canada were less likely than other Canadians to have contacted a health professional for mental health reasons in the previous year in the province of British Columbia. The difference persisted among individuals at moderate to high risk for depressive episode. Both immigrant and Canadian-born Chinese showed similar characteristics of mental health service use. The demographic and health factors that significantly affected their likelihood to consult mental health services included Chinese language ability, restriction in daily activities, frequency of medical consultations, and depression score. Notwithstanding lower levels of mental illness in ethnic Chinese communities, culture emerged as a major factor explaining differences in mental health consultation between Chinese and non-Chinese Canadians.

  15. Global Real Activity for Canadian Exports: GRACE


    Binette, André; Chernis, Tony; De Munnik, Daniel


    Canadian exports have often disappointed since the Great Recession. The apparent disconnect between exports and the Bank of Canadafs current measure of foreign demand has created an impetus to search for an alternative. Based on a dynamic factor model (DFM) methodology, we use a broad range of international economic indicators (close to 300) to estimate external demand for Canadian exports. The new measure, Global Real Activity for Canadian Exports (GRACE), follows Binette et al. (201...

  16. Americanizing Canadian Nursing: Nursing Regulation Drift


    Kathleen MacMillan; Judith Oulton; Rachel Bard; Wendy Nicklin


    Recent regulatory changes mean Canadian nurses are writing a US-based entry to practice exam and a US company is assessing credentials of internationally educated nurses (IENs) for Canadian registration. This paper asserts that this policy direction has significant consequences for Canadian content and integrity of education programs, francophone parity in testing, and the future of primary health care and health system reform. Furthermore, writing a US exam means Canada is at risk of losin...

  17. X-37 Flight Demonstrator: X-40A Flight Test Approach (United States)

    Mitchell, Dan


    The flight test objectives are: Evaluate calculated air data system (CADS) experiment. Evaluate Honeywell SIGI (GPS/INS) under flight conditions. Flight operation control center (FOCC) site integration and flight test operations. Flight test and tune GN&C algorithms. Conduct PID maneuvers to improve the X-37 aero database. Develop computer air date system (CADS) flight data to support X-37 system design.

  18. The Canadian Association for the Study of International ...

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

    Revue canadienne des études en développement) publishes research by the Canadian community and ... It stimulates Canadian graduate students to work in this field and enhances IDRC's visibility within the Canadian academic community.

  19. Canadian Council for Area Studies Learned Societies - 2007-2008 ...

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

    CCASLS) provides a shared secretariat for four area studies associations: the Canadian Association of African Studies (CAAS); the Canadian Asian Studies Association (CASA): the Canadian Association of Latin American and Caribbean Studies ...

  20. Drought, Climate Change and the Canadian Prairies (United States)

    Stewart, R. E.


    employment losses exceeded 41,000 jobs for 2001 and 2002. This drought also contributed to a negative or zero net farm income for several provinces for the first time in 25 years with agricultural production over Canada dropping an estimated 3.6 billion in 2001/2002. Previously reliable water supplies such as streams, wetlands, dugouts, reservoirs, and groundwater were placed under stress and often failed. Despite their enormous economic, environmental, and societal impacts, there has never been a coordinated and integrated drought research program in Canada. To begin to address these issues related to drought, the Drought Research Initiative, DRI was established. The overall objective of DRI is "to better understand the physical characteristics of and processes influencing Canadian Prairie droughts, and to contribute to their better prediction, through a focus on the recent severe drought that began in 1999 and largely ended in 2005". DRI is focused on five research objectives: 1. Quantify the physical features of this recent drought 2. Improve the understanding of the processes and feedbacks governing the formation, evolution, cessation and structure of the drought 3. Assess and reduce uncertainties in the prediction of drought and its structure 4. Compare the similarities and differences of the recent drought to previous and future droughts 5. Apply progress to address critical issues of importance to society Major progress is being made within each of these research areas. These coordinated studies furthermore represent an essential step towards our ultimate goal which is to better assess whether there will be more droughts in the future over this region due to climate change, what features these droughts will exhibit, and how we can best prepare for them. The focus of these activities is on changes to occur over the next several decades and significant progress is being made in addressing these issues as well. The purpose of this presentation is to provide an overview

  1. Canadian pesticide air sampling campaign

    Energy Technology Data Exchange (ETDEWEB)

    Yao, Y.; Harner, T.; Blanchard, P.; Li, Y.F.; Aulagnier, F. [Environment Canada, Gatineau, PQ (Canada). Meteorological Service of Canada; Tuduri, L. [Laboratoire de Physico Toxicochimie des Systemes Naturels, Talence (France). Equipe Perigourdine de Chimie Appliquee; Waite, D.; Belzer, W. [Environment Canada, Ottawa, ON (Canada). Environmental Conservation Branch; Murphy, C. [Environment Canada, Ottawa, ON (Canada). Environmental Protection Service


    Although pesticides are widely used in Canada, little is known about the presence, distribution, and fate of currently used pesticides (CUPs) in the Canadian atmosphere. This paper provided details of a campaign conducted in 2003 to provide information on air and precipitation levels of CUPs. The objective of the campaign was to create pesticide emission inventories and to identify important pesticide issues related to environmental fate, exposure, and risk assessment in order to develop effective pesticide policies. A Canadian atmospheric network for currently used pesticides was established, which was then followed by an intensive field study in the Canadian prairies. Air samples were collected weekly using high volume PS-1 samplers with polyurethane foam (PUF) XAD sandwiches and glass fibre filters. Precipitation samples were collected each month using MIC samplers equipped with XAD columns. Passive air samplers were deployed at many of the sites for periods of 1 to 3 months. Results of the study showed relatively high concentrations of endosulfan at all sites. High levels of chloropyrifos, malathion, and carbofurans were also detected from air samples. High concentrations of lindane were also observed. Alachlor, metochlor, and trifluralin concentrations were detected in most Ontario and Quebec air and rainfall samples. Eleven target pesticides were detected from air samples during the prairie study. High concentrations of triallate were observed, and good correlations between air concentration trends and dry deposition trends were seen for triallate, 2,4-D, MCPA, dicamba, and bromoxynil. Results of the campaign are now being modelled using a simplified gridded pesticide emission and residue model. 4 refs., 7 figs.

  2. Canadian environmental sustainability indicators 2006

    International Nuclear Information System (INIS)


    In 2004, the Canadian government committed to reporting annual national indicators of air quality, greenhouse gas (GHG) emissions and freshwater quality in order to provide Canadians with more regular and consistent information on the state of the environment and how it is linked with human activities. The national air quality indicators in this report focused on human exposure to ground-level ozone and fine particulate matter (PM 2.5 ). The report showed that from 1990 to 2004, the ozone indicator showed year-to-year variability, with an averaged increase of 0.9 per cent per year. Stations in southern Ontario reported the highest levels of ozone and PM 2.5 in the country in 2004. There was no discernible upward or downward trend in PM 2.5 levels at the national level for the 2000 to 2004 period, and GHG emissions rose 27 per cent from 1990 to 2004. In 2004, emissions were 35 per cent above the target to which Canada committed under the Kyoto Protocol. However, while total emissions rose, emissions per unit of gross domestic product (GDP) fell by 14 per cent from 1990 to 2004. GHG emissions also grew faster than the Canadian population, resulting in a 10 per cent rise in emissions per person. The freshwater quality indicator presented in this report covered the period from 2002 to 2004, and focused on the ability of Canada's surface waters to support aquatic life. For the 340 sites selected across southern Canada, water quality was rated as good or excellent at 44 per cent of sites, fair at 34 per cent of sites, and marginal or poor at 22 per cent of sites. The report included a chapter which attempted to integrate the indicators with other environmental impacts, measures of economic performance, and indices of social progress to improve the ability of the report to influence decision-making that fully accounts for environmental sustainability. 63 refs., 18 figs

  3. Fuels for Canadian research reactors

    International Nuclear Information System (INIS)

    Feraday, M.A.


    This paper includes some statements and remarks concerning the uranium silicide fuels for which there is significant fabrication in AECL, irradiation and defect performance experience; description of two Canadian high flux research reactors which use high enrichment uranium (HEU) and the fuels currently used in these reactors; limited fabrication work done on Al-U alloys to uranium contents as high as 40 wt%. The latter concerns work aimed at AECL fast neutron program. This experience in general terms is applied to the NRX and NRU designs of fuel

  4. Canadian gas - where's it headed?

    International Nuclear Information System (INIS)

    Dominy, D.


    The evolution of gas transportation in Canada was described. The issue of what is needed and what can change in the current North American market for gas transportation was also discussed. The transportation values of natural gas from the Western Canadian Sedimentary Basin (WCSB) to New York, Chicago and California for 1993 to 1997 were reviewed. Export and domestic capacity additions and WCSB gas completions were also outlined. The question of how much new capacity is needed, where the gas will come from, and where will it go, was also discussed

  5. Online Learning Flight Control for Intelligent Flight Control Systems (IFCS) (United States)

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


    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.

  6. Biomechanics of bird flight. (United States)

    Tobalske, Bret W


    Power output is a unifying theme for bird flight and considerable progress has been accomplished recently in measuring muscular, metabolic and aerodynamic power in birds. The primary flight muscles of birds, the pectoralis and supracoracoideus, are designed for work and power output, with large stress (force per unit cross-sectional area) and strain (relative length change) per contraction. U-shaped curves describe how mechanical power output varies with flight speed, but the specific shapes and characteristic speeds of these curves differ according to morphology and flight style. New measures of induced, profile and parasite power should help to update existing mathematical models of flight. In turn, these improved models may serve to test behavioral and ecological processes. Unlike terrestrial locomotion that is generally characterized by discrete gaits, changes in wing kinematics and aerodynamics across flight speeds are gradual. Take-off flight performance scales with body size, but fully revealing the mechanisms responsible for this pattern awaits new study. Intermittent flight appears to reduce the power cost for flight, as some species flap-glide at slow speeds and flap-bound at fast speeds. It is vital to test the metabolic costs of intermittent flight to understand why some birds use intermittent bounds during slow flight. Maneuvering and stability are critical for flying birds, and design for maneuvering may impinge upon other aspects of flight performance. The tail contributes to lift and drag; it is also integral to maneuvering and stability. Recent studies have revealed that maneuvers are typically initiated during downstroke and involve bilateral asymmetry of force production in the pectoralis. Future study of maneuvering and stability should measure inertial and aerodynamic forces. It is critical for continued progress into the biomechanics of bird flight that experimental designs are developed in an ecological and evolutionary context.

  7. Bat flight: aerodynamics, kinematics and flight morphology. (United States)

    Hedenström, Anders; Johansson, L Christoffer


    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.

  8. Validation of the French-Canadian Pelvic Girdle Questionnaire. (United States)

    Girard, Marie-Pier; O'Shaughnessy, Julie; Doucet, Chantal; Lardon, Emeline; Stuge, Britt; Ruchat, Stephanie-May; Descarreaux, Martin

    Pain in the pelvic girdle area is commonly reported during pregnancy and the postpartum period, and its impact on quality of life is considerable. The Pelvic Girdle Questionnaire (PGQ), developed in 2011 in Norway, is the only condition-specific tool assessing pelvic girdle pain-related symptoms and disability. The questionnaire was recently translated and adapted for the French-Canadian population. The objective of this study was to assess the measurement properties of the previously translated French-Canadian PGQ. Eighty-two women with pelvic girdle pain were included in this validation study. The French-Canadian PGQ, pain intensity Numeric Rating Scale, and Oswestry Disability Index were completed by participants at baseline, 48 hours later, and 3 to 6 months later to assess test-retest reliability, construct validity, responsiveness, floor and ceiling effects, and internal consistency. Reliability analyses indicated an intraclass correlation coefficient of 0.841 (95% confidence interval [CI] 0.750-0.901) for the global score. Construct validity analyses indicated a Spearman rank correlation coefficient of 0.696 with the Oswestry Disability Index. Responsiveness analyses identified an effect size of 0.908 (95% CI 0.434-1.644) and an area under the receiver operating characteristics curve of 0.823 (95% CI 0.692-0.953). There was no floor or ceiling effect, and internal consistency analyses indicated a Cronbach α of .933 for the activity subscale and .673 for the symptom subscale. Overall, the French-Canadian version of the PGQ is reliable, valid, and responsive, suggesting that it can be implemented in both research and clinical settings to assess functional limitations in pregnant and postpartum women. Copyright © 2018. Published by Elsevier Inc.

  9. Factors affecting food selection in Canadian population. (United States)

    Ree, M; Riediger, N; Moghadasian, M H


    To establish health-related reasons behind Canadian food choices, and how variables such as education, income, gender, ethnicity and age may affect food selection. Approximately 98 733 Canadians responded to the 12 questions regarding food choices in the Canadian Community Health Survey (CCHS) cycle 2.1, conducted by the Canadian Government in 2003. These included 13 727 adolescents (12-19 years), 19 089 young adults (20-34 years), 31 039 middle-aged adults (35-54 years), 25 338 older adults (55-74 years) and 9580 elderly (75+ years). Approximately 70% of Canadian adolescents in the sample indicated that their food choices were independent of health concerns. Body weight management was a major concern for food selection by adolescents and adults, while the elderly stated heart disease as their main concern. Among all participants, females, and individuals with high levels of education and income reported the highest response to choosing or avoiding foods due to health concerns and food content. Our data indicate that several factors significantly affect food choices for health-related reasons in the Canadian population. Among them, age- and gender-related gaps, particularly between adolescents and adults, are profound. This observation may urge authorities to implement effective strategies to educate Canadians, especially adolescents, that selection of appropriate foods may prevent chronic diseases.

  10. Nuclear communications : A Canadian perspective

    International Nuclear Information System (INIS)

    Macpherson, John A.


    Times have changed since the early days of nuclear energy when it was a symbol of a brave new world, Public information strategies have evolved to meet increasing public concerns, and have shifted from being a largely unfocused attempt at publicity to being more concerned with managing issues and solving problems. This paper describes some of the salient features of the Canadian experience in nuclear communications and examines four key aspects: opinion and attitude research; media relations; coeducation; and advertising. It also addresses the challenge of responding to the allegations and tactics of those who are actively hostile to nuclear energy, and recommends that the principles of Total Quality Management and of organizational effectiveness be applied more thorough and more consistently to the public affairs function

  11. Tritium technology. A Canadian overview

    International Nuclear Information System (INIS)

    Hemmings, R.L.


    An overview of the various tritium research and operational activities in Canada is presented. These activities encompass tritium processing and recovery, tritium interactions with materials, and tritium health and safety. Many of these on-going activities form a sound basis for the tritium use and handling aspects of the ITER project. Tritium management within the CANDU heavy water reactor, associated detritiation facilities, research and development facilities, and commercial industry and improving the understanding of tritium behaviour in humans and the environment remain the focus of a long-standing Canadian interest in tritium. While there have been changes in the application of this knowledge and experience over time, the operating experience and the supporting research and development continue to provide for improved plant and facility operations, an improved understanding of tritium safety issues, and improved products and tools that facilitate tritium management. (author)

  12. Language ideology and the native speaker ideal : Canadian and Norwegian attitudes toward ESL/EFL pedagogical models


    Dykeman, Rachel Elizabeth


    Previous sociolinguistic studies done in Norway have explored attitudes toward native speaker and Norwegian accented varieties of English. This study adds a new angle by comparing the attitudes of first language speakers of English from Canada and second language speakers of English from Norway toward SC (Standard Canadian) and NE (Norwegian accented English) accents. An online survey was undertaken by 107 English teachers, of which 50 self-identified as Norwegian and 57 as Canadian teachers ...

  13. Social Workers' Role in the Canadian Mental Health Care System (United States)

    Towns, Ashley M.; Schwartz, Karen


    Objective: Using Canadian survey data this research provides social workers in Canada with a better understanding of their role in the Canadian mental health care system. Methods: By analyzing data from the Canadian Community Health Survey, Cycle 1.2 Mental Health and Well-being, the role of social workers in the Canadian mental health system was…

  14. Exploring flight crew behaviour (United States)

    Helmreich, R. L.


    A programme of research into the determinants of flight crew performance in commercial and military aviation is described, along with limitations and advantages associated with the conduct of research in such settings. Preliminary results indicate significant relationships among personality factors, attitudes regarding flight operations, and crew performance. The potential theoretical and applied utility of the research and directions for further research are discussed.

  15. A perspective on Canadian shale gas

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, Mike; Davidson, Jim; Mortensen, Paul


    In a relatively new development over just the past few years, shale formations are being targeted for natural gas production. Based on initial results, there may be significant potential for shale gas in various regions of Canada, not only in traditional areas of conventional production but also non-traditional areas. However, there is much uncertainty because most Canadian shale gas production is currently in experimental or early developmental stages. Thus, its full potential will not be known for some time. If exploitation proves to be successful, Canadian shale gas may partially offset projected long-term declines in Canadian conventional natural gas production.

  16. Leading Lean: a Canadian healthcare leader's guide. (United States)

    Fine, Benjamin A; Golden, Brian; Hannam, Rosemary; Morra, Dante


    Canadian healthcare organizations are increasingly asked to do more with less, and too often this has resulted in demands on staff to simply work harder and longer. Lean methodologies, originating from Japanese industrial organizations and most notably Toyota, offer an alternative - tried and tested approaches to working smarter. Lean, with its systematic approaches to reducing waste, has found its way to Canadian healthcare organizations with promising results. This article reports on a study of five Canadian healthcare providers that have recently implemented Lean. We offer stories of success but also identify potential obstacles and ways by which they may be surmounted to provide better value for our healthcare investments.

  17. Long migration flights of birds

    International Nuclear Information System (INIS)

    Denny, Mark


    The extremely long migration flights of some birds are carried out in one hop, necessitating a substantial prior build-up of fat fuel. We summarize the basic elements of bird flight physics with a simple model, and show how the fat reserves influence flight distance, flight speed and the power expended by the bird during flight. (paper)

  18. Long migration flights of birds (United States)

    Denny, Mark


    The extremely long migration flights of some birds are carried out in one hop, necessitating a substantial prior build-up of fat fuel. We summarize the basic elements of bird flight physics with a simple model, and show how the fat reserves influence flight distance, flight speed and the power expended by the bird during flight.

  19. Canadian natural gas : market review and outlook

    International Nuclear Information System (INIS)


    This annual working paper provides summaries of trends within the North American natural gas industry and also reviews Canadian gas exports. It is designed to promote dialogue between industry and the government and to obtain feedback on natural gas issues. The main section of the report consists of graphs, with limited text comments on the side. It provides a structured look at supply and demand for the year 2000 as well as for the near term (2001) and long-term (2010). The sources of information included private consultants, industry associations and federal agencies in Canada and the United States. It was shown that gas demand had grown steadily in North America since 1997, at about 2.5 per cent annually, and then fell 3.4 per cent in 1998 and remained low in 1999, below 1997 demand. This was due mainly to mild winters. In 2000, the demand for natural gas increased again to 5 per cent as a result of a colder winter and increased gas use for power generation. The report also stated that the combination of various factors including low storage balances due to previously low drilling years and high oil prices, were responsible for natural gas price increases in 2000. The tight supply/demand balance was exacerbated by restraints in pipeline capacity. Producers and pipeline groups are now looking seriously at developing the large gas deposits in Alaska and the Mackenzie Delta which were previously considered to be uneconomic. It was noted that in the near term, storage must be rebuilt to normal levels. Storage balances will be a good indicator of the relative strengths of gas production and demand growth. It was forecasted that Canada to U.S. gas exports should continue to increase in 2001 as a large new export pipeline was completed in 2000, but there is considerable uncertainty for the medium to longer-term. refs., tabs., figs

  20. Canadian Portrait of Changes in Family Structure and Preschool Children's Behavioral Outcomes (United States)

    Gosselin, Julie; Romano, Elisa; Bell, Tessa; Babchishin, Lyzon; Hudon-ven der Buhs, Isabelle; Gagné, Annie; Gosselin, Natasha


    Whereas US-based data have contributed to our understanding of family composition changes over the last decades, data on Canadian families are limited, and previous studies have stressed the need for in depth, longitudinal investigations. This article begins to fill this gap in the literature by providing a current and detailed portrait of family…

  1. Why do Companies issue Convertible Bond Loans? An Empirical Analysis for the Canadian Market

    NARCIS (Netherlands)

    Loncarski, I.; Ter Horst, J.R.; Veld, C.H.


    We examine the wealth effects associated with the announcements of convertible debt offerings in the Canadian market for the period between 1991 and 2004.The average wealth effect for the three day event window is a significantly negative -2.7%.This result is in line with previous studies on other

  2. Intrinsic, Extrinsic, and Integrative Orientations of French Canadian Learners of English. (United States)

    Noels, Kimberly A.; Clement, Richard; Pelletier, Luc G.


    Replicates previous research on intrinsic and extrinsic motivation for language learning in French Canadian students of English and considers the relations between intrinsic and extrinsic motivation and integrative orientation. Quebecois university students completed a questionnaire addressing their reasons for learning English. (Author/VWL)

  3. Showing Your Pride: A National Survey of Queer Student Centres in Canadian Colleges and Universities (United States)

    Ecker, John; Rae, Jennifer; Bassi, Amandeep


    The presence of queer student centres (QSCs) across Canadian universities and colleges is largely unknown. It is an important area of investigation since queer-identified students have previously identified several benefits of these services, including receiving support from other queer individuals. The focus of the current study was to determine…

  4. The Canadian Assessment of Physical literacy

    DEFF Research Database (Denmark)

    Francis, Claire E; Longmuir, Patricia E; Boyer, Charles


    Background: The Canadian Assessment of Physical Literacy (CAPL) was conceptualized as a tool to monitor children's physical literacy. The original model (fitness, activity behavior, knowledge, motor skill) required revision and relative weights for calculating/interpreting scores were required. M...

  5. Canadians' access to insurance for prescription medicines

    National Research Council Canada - National Science Library


    ...-economic circumstances and drug needs. Volume two presents an analysis of the un-insured and under-insured by measuring the extent to which Canadians have access to insurance for prescription drug expenses and the quality of that coverage...

  6. Canadian national nuclear forensics capability project

    International Nuclear Information System (INIS)

    Ball, J.; Dimayuga, I.; Summerell, I.; Totland, M.; Jonkmans, G.; Whitlock, J.; El-jaby, A.; Inrig, E.


    Following the 2010 Nuclear Security Summit, Canada expanded its existing capability for nuclear forensics by establishing a national nuclear forensics laboratory network, which would include a capability to perform forensic analysis on nuclear and other radioactive material, as well as on traditional evidence contaminated with radioactive material. At the same time, the need for a national nuclear forensics library of signatures of nuclear and radioactive materials under Canadian regulatory control was recognized. The Canadian Safety and Security Program, administered by Defence Research and Development Canada's Centre for Security Science (DRDC CSS), funds science and technology initiatives to enhance Canada's preparedness for prevention of and response to potential threats. DRDC CSS, with assistance from Canadian Nuclear Laboratories, formerly Atomic Energy of Canada Limited, is leading the Canadian National Nuclear Forensics Capability Project to develop a coordinated, comprehensive, and timely national nuclear forensics capability. (author)

  7. The Canadian Forces Recruitment/Attrition Model

    National Research Council Canada - National Science Library

    Wait, Tracey


    ...), as part of its mandate to provide analysis of potential impacts of trends and change on defense and defense related issues, has designed a prototype model of recruitment and attrition of the Canadian Forces (C F...

  8. Manufacture of components for Canadian reactor programs

    International Nuclear Information System (INIS)

    Perry, L.P.

    Design features, especially those relating to calandrias, are pointed out for many CANDU-type reactors and the Taiwan research reactor. The special requirements shouldered by the Canadian suppliers of heavy reactor components are analyzed. (E.C.B.)

  9. Canadian Business Schools: Going out of Business? (United States)

    Dobni, Dawn; Dobni, Brooke


    Using Porter's five-forces model (potential entrants, suppliers, buyers, rivalry, substitutes) to analyze competition in Canadian university business schools, the authors conclude that schools are becoming increasingly vulnerable to competitive pressures and that strategic reorientation is necessary. (SK)

  10. How Canadians feel about nuclear energy

    International Nuclear Information System (INIS)



    A survey conducted by Decima Research in April 1989 showed that 50% of Canadians were somewhat or strongly in favour of nuclear energy, the percentage varying from 37% in British Columbia to 65% in Ontario. A majority (56%) questioned the nuclear industry's ability to handle its waste safely, but 45% believed that it was working hard to solve the problem. It was evident that an advertising campaign by the Canadian Nuclear Association had an effect

  11. Waste management in Canadian nuclear programs

    International Nuclear Information System (INIS)

    Dyne, P.J.

    The objectives of the Canadian radioactive waste management program are described. Recycling actinides through reactors is being studied. Low and medium level waste treatments such as reverse osmosis concentration, immobilization in bitumen and plastics, and incineration are under study. Spent fuel can be stored dry in concrete canisters above ground and ultimate storage of wastes in salt deposits or hard rock is appropriate to Canadian conditions. (E.C.B.)

  12. South Asian Canadian experiences of depression


    Grewal, Amarjit


    This narrative research study explored the socio-cultural context surrounding depression through semi-structured interviews with six South Asian Canadian participants, who self identified as having experienced depression. The study sought to expand on the knowledge of depression and South Asian Canadians by considering the roles of the family, the community, and the culture in the experiences of depression. Thematic analysis of the participant interviews resulted in five major themes: the exp...

  13. The Canadian nuclear industry - a national asset

    International Nuclear Information System (INIS)


    The economic importance of the Canadian nuclear industry in saving costs and creating jobs is expounded. The medical work of Atomic Energy of Canada Limited is also extolled. The Canadian Nuclear Association urges the federal government to continue to support the industry at home, and to continue to promote nuclear exports. This report was prepared in response to the Federal Finance Minister's 'A New Direction for Canada'

  14. Canadian Manufacturing Malaise: Three Hypotheses

    Directory of Open Access Journals (Sweden)

    Matt Krzepkowski


    Full Text Available The danger in politicians promoting the idea that “Dutch Disease” is responsible for the decline of the Ontario manufacturing sector is that the suggestion implies that Canada’s manufacturing sector will bounce back if only we could slow down oil sands development, or if the Canadian dollar were to devalue. In reality, evidence suggests that the decline in Ontario manufacturing is the result of long-term structural changes in the economy, independent of the rise of the country’s natural-resource sector and the rising dollar. And the sooner policymakers realize that, and stop blaming the decline in manufacturing on Dutch Disease (which holds that a booming natural-resource sector that drives up our dollar makes our manufacturing exports less competitive the sooner they can get to work on helping manufacturing-dependent regions transition to the evolving economy. A closer analysis of Canada’s manufacturing sector shows that jobs in that sector have been disappearing across the country since the end of the Second World War, with the sector’s share of employment falling dramatically well before rapid development began to take hold in the oil sands, and back when Canada’s dollar was still worth far less than the American dollar. It is a trend that has been occurring among most of our OECD peers, including the United States, which may be due to the widespread reallocation of production to lower cost countries. But it is also true that Canada’s manufacturing productivity performance in particular has been declining for a generation, with especially poor performance in the last decade, when labour productivity in Canada grew at just a quarter of the U.S. rate. Meanwhile, capital investment that may have improved the competitiveness of Canadian manufacturing has been anemic. Yet there is no particular reason to lament the scaling-down of manufacturing jobs in Ontario. The province remains just as economically important, as a share of

  15. Placental complications after a previous cesarean section


    Milošević Jelena; Lilić Vekoslav; Tasić Marija; Radović-Janošević Dragana; Stefanović Milan; Antić Vladimir


    Introduction The incidence of cesarean section has been rising in the past 50 years. With the increased number of cesarean sections, the number of pregnancies with the previous cesarean section rises as well. The aim of this study was to establish the influence of the previous cesarean section on the development of placental complications: placenta previa, placental abruption and placenta accreta, as well as to determine the influence of the number of previous cesarean sections on the complic...

  16. Flight Dynamics Analysis Branch (United States)

    Stengle, Tom; Flores-Amaya, Felipe


    This report summarizes the major activities and accomplishments carried out by the Flight Dynamics Analysis Branch (FDAB), Code 572, in support of flight projects and technology development initiatives in fiscal year 2000. The report is intended to serve as a summary of the type of support carried out by the FDAB, as well as a concise reference of key accomplishments and mission experience derived from the various mission support roles. The primary focus of the FDAB is to provide expertise in the disciplines of flight dynamics, spacecraft trajectory, attitude analysis, and attitude determination and control. The FDAB currently provides support for missions and technology development projects involving NASA, government, university, and private industry.

  17. Toward intelligent flight control (United States)

    Stengel, Robert F.


    Flight control systems can benefit by being designed to emulate functions of natural intelligence. Intelligent control functions fall in three categories: declarative, procedural, and reflexive. Declarative actions involve decision-making, providing models for system monitoring, goal planning, and system/scenario identification. Procedural actions concern skilled behavior and have parallels in guidance, navigation, and adaptation. Reflexive actions are more-or-less spontaneous and are similar to inner-loop control and estimation. Intelligent flight control systems will contain a hierarchy of expert systems, procedural algorithms, and computational neural networks, each expanding on prior functions to improve mission capability to increase the reliability and safety of flight and to ease pilot workload.

  18. Canadian industry program for energy conservation

    Energy Technology Data Exchange (ETDEWEB)


    The Canadian Industry Program for Energy Conservation (CIPEC) is an industry administered, government sponsored program for promoting and monitoring energy efficiency throughout the Canadian manufacturing and mining industries. CIPEC was established as a result of deliberations between the Federal Ministers of the Department of Energy, Mines and Resources and the Department of Trade and Commerce and 50 of industry's most senior representatives. It now consists of 14 different industrial task forces that represent a broad spectrum of Canadian manufacturing and mining industries. The programs objectives in promoting energy conservation are to: promote energy productivity improvement in Canadian industry; maintain an effective forum for industry/government dialogue on energy utilization and productivity matters; forecast aggregate energy productivity improvement based on Canadian industry programs; collect data and report on energy productivity of Canadian industry. Industry's energy use per unit of output for 1989 remained at the same level as 1988: 28.8% less than the base year of 1973 and 4.8% less than 1985. It is likely that industry will be unable to reach the 1990 goal of 31% reduction over 1973 levels of energy consumption. New energy reduction goals should be established which take into account factors such as industrial globalization, economic restructuring, provincial and local energy conservation programs, and environmental considerations. 5 figs., 26 tabs.

  19. Post-traumatic stress disorder and health problems among medically ill Canadian peacekeeping veterans. (United States)

    Richardson, J Don; Pekevski, Jordan; Elhai, Jon D


    The aim of the present study was to examine the relationship between post-traumatic stress disorder (PTSD) symptom severity and four significant health conditions (gastrointestinal disorders, musculoskeletal problems, headaches, and cardiovascular problems). Participants included 707 Canadian peacekeeping veterans with service-related disabilities, from a random, national Canadian survey, who had been deployed overseas. PTSD severity was significantly related to gastrointestinal disorders, musculoskeletal problems, and headaches, but not to cardiovascular problems. Controlling for demographic factors did not affect PTSD's relationships with the three significant health conditions. The present study supports previous work in finding consistent relations between PTSD severity and specific types of medical problems.

  20. Initial Flight Test of the Production Support Flight Control Computers at NASA Dryden Flight Research Center (United States)

    Carter, John; Stephenson, Mark


    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.

  1. Core Flight Software (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...

  2. Canadian photovoltaic industry directory --1998

    International Nuclear Information System (INIS)


    The directory is intended to help potential PV customers identify Canadian-based companies who can meet their needs, and to help product manufacturers and distributors identify potential new clients and/or partners within the PV industry for new and improved technologies leading to greater end-use customer satisfaction. The principal feature of the directory is an information matrix that identifies the product and service types offered by each firm and the primary clients served. There is also a list of companies by province and territory, followed by an alphabetical listing of all companies, with detailed information including, mailing address, contact person, prime activity, geographic area served, languages in which services are provided, and a brief company profile. Additional information provided by the companies themselves, dealing with items such as number of systems sold, the total installed capacity, etc., is included in an 'experience matrix' for each firm. Sources of additional information on photovoltaic systems are included in a list at the end of the directory

  3. Medical cannabis - the Canadian perspective. (United States)

    Ko, Gordon D; Bober, Sara L; Mindra, Sean; Moreau, Jason M


    Cannabis has been widely used as a medicinal agent in Eastern medicine with earliest evidence in ancient Chinese practice dating back to 2700 BC. Over time, the use of medical cannabis has been increasingly adopted by Western medicine and is thus a rapidly emerging field that all pain physicians need to be aware of. Several randomized controlled trials have shown a significant and dose-dependent relationship between neuropathic pain relief and tetrahydrocannabinol - the principal psychoactive component of cannabis. Despite this, barriers exist to use from both the patient perspective (cost, addiction, social stigma, lack of understanding regarding safe administration) and the physician perspective (credibility, criminality, clinical evidence, patient addiction, and policy from the governing medical colleges). This review addresses these barriers and draws attention to key concerns in the Canadian medical system, providing updated treatment approaches to help clinicians work with their patients in achieving adequate pain control, reduced narcotic medication use, and enhanced quality of life. This review also includes case studies demonstrating the use of medical marijuana by patients with neuropathic low-back pain, neuropathic pain in fibromyalgia, and neuropathic pain in multiple sclerosis. While significant preclinical data have demonstrated the potential therapeutic benefits of cannabis for treating pain in osteoarthritis, rheumatoid arthritis, fibromyalgia, and cancer, further studies are needed with randomized controlled trials and larger study populations to identify the specific strains and concentrations that will work best with selected cohorts.

  4. Canadian natural gas price forecast

    International Nuclear Information System (INIS)

    Jones, D.


    The basic factors that influenced NYMEX gas prices during the winter of 1997/1998 - warm temperatures, low fuel prices, new production in the Gulf of Mexico, and the fact that forecasters had predicted a mild spring due to El Nino - were reviewed. However, it was noted that for the last 18 months the basic factors had less of an impact on market direction because of an increase in Fund and technical trader participation. Overall, gas prices were strong through most of the year. For the winter of 1998-1999 the prediction was that NYMEX gas prices will remain below $2.00 through to the end of October 1998 because of high U.S. storage levels and moderate temperatures. NYMEX gas prices are expected to peak in January 1999 at $3.25. AECO natural gas prices were predicted to decrease in the short term because of increasing levels of Canadian storage, and because of delays in Northern Border pipeline expansions. It was also predicted that AECO prices will peak in January 1999 and will remain relatively strong through the summer of 1999. tabs., figs

  5. Efficient flapping flight of pterosaurs (United States)

    Strang, Karl Axel

    the membrane subject to glide loads and pretension from the wing joint positions. The flapping gait is optimized in a two-stage procedure. First the design space is explored using a binary genetic algorithm. The best design points are then used as starting points in a sequential quadratic programming optimization algorithm. This algorithm is used to refine the solutions by precisely satisfying the constraints. The refined solutions are found in generally less than twenty major iterations and constraints are violated generally by less than 0.1%. We find that the optimal motions are in agreement with previous results for simple wing motions. By adding joint motions, the required flapping power is reduced by 7% to 17%. Because of the large uncertainties for some estimates, we investigate the sensitivity of the optimized flapping gait. We find that the optimal motions are sensitive mainly to flight speed, body accelerations, and to the material properties of the wing membrane. The optimal flight speed found correlates well with other studies of pterosaur flapping flight, and is 31% to 37% faster than previous estimates based on glide performance. Accounting for the body accelerations yields an increase of 10% to 16% in required flapping power. When including the aeroelastic effects, the optimal flapping gait is only slightly modified to accommodate for the deflections of stiff membranes. For a flexible membrane, the motion is significantly modified and the power increased by up to 57%. Finally, the flapping gait and required power compare well with published results for similar wing motions. Some published estimates of required power assumed a propulsive efficiency of 100%, whereas the propulsive efficiency computed for Coloborhynchus robustus ranges between 54% and 87%.

  6. 1999 Flight Mechanics Symposium (United States)

    Lynch, John P. (Editor)


    This conference publication includes papers and abstracts presented at the Flight Mechanics Symposium held on May 18-20, 1999. Sponsored by the Guidance, Navigation and Control Center of Goddard Space Flight Center, this symposium featured technical papers on a wide range of issues related to orbit-attitude prediction, determination, and control; attitude sensor calibration; attitude determination error analysis; attitude dynamics; and orbit decay and maneuver strategy. Government, industry, and the academic community participated in the preparation and presentation of these papers.

  7. Adaptive structures flight experiments (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.

  8. Soldiers of Peace: Canadians in UNRRA's German nursing brigade, 1945-1947. (United States)

    Armstrong-Reid, Susan


    "Soldiers of Peace" examines Canadian nursing experiences with the United Nations Relief and Rehabilitation Administration (UNRRA) in Occupied Germany from 1945 to 1947. Whether their practice setting was in UNRRA hospitals, camps, or as members of the flying squads that dealt with epidemics or accompanied the repatriation trains, Canadian UNRRA nurses forged new professional frontiers and encountered unprecedented nursing challenges, calling for even greater diplomatic acumen than demanded by their previous experience. Giving voice to Canadian UNRRA nurses' stories provides an instructive lens into the history of the first postwar internal organization and into the contemporary challenges presented by the seemingly insatiable demands for nursing services in the wake of war, natural disasters, and epidemics within the global health community.

  9. Factors Associated with Chronic Noncancer Pain in the Canadian Population

    Directory of Open Access Journals (Sweden)

    Saifudin Rashiq


    Full Text Available Chronic noncancer pain (CNCP is a prevalent health problem with pervasive negative effects on the individual’s quality of life. Previous epidemiological studies of CNCP have suggested a number of individual biological, psychological and societal correlates of CNCP, but it has rarely been possible to simultaneously compare the relative strengths of many such correlates in a Canadian population sample. With data provided by the 1996/1997 Canadian National Population Health Survey, ordinal logistic regression was used to examine the extent to which a number of population variables are associated with CNCP in a large (n=69,365 dataset. The analysis revealed cross-sectional correlations of varying strengths between CNCP and 27 factors. Increasing age, low income, low educational achievement, daily cigarette smoking, physical inactivity and abstention from alcohol were among the factors found to increase CNCP risk. The considerable impact of distress and depression on CNCP are also highlighted. A number of comorbid medical illnesses increased CNCP risk, including some (such as chronic obstructive pulmonary disease, epilepsy and thyroid disease that have not hitherto been associated with pain. White race and the affirmation of an important role for spirituality or faith reduced CNCP risk. In contrast to some previous studies, female sex did not emerge as an independent CNCP risk. The present exploratory analysis describes associations between CNCP and a number of characteristics from several domains, thus suggesting many areas for further research.

  10. Magnesium and Space Flight (United States)

    Smith, Scott M.; Zwart, Sara R.


    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

  11. The Adoption of Open Access Funds Among Canadian Academic Research Libraries, 2008-2012

    Directory of Open Access Journals (Sweden)

    Crystal Hampson


    Full Text Available As a result of changes in scholarly communication created by the open access movement, some academic libraries established open access (OA publishing funds. OA funds are monies set aside at an institution to fund open access publishing of the results of scholarly research. OA funds are a recent innovation in the type of services offered by academic libraries. Adoption of an innovation can be examined in the light of established theories of innovation adoption among social systems. To examine academic libraries’ responses to OA publishing charges, this article explores the adoption of OA funds among Canadian academic research libraries from 2008 to 2012 by analyzing results from a series of previously published surveys. The findings are then examined in light of Everett Rogers’ Innovation Diffusion Theory (IDT to consider the question of whether or not OA funds are becoming a standard service in Canadian academic research institutions. Adoption in Canada is briefly compared to that in the United States and United Kingdom. The paper concludes that, as of 2012, OA funds were becoming common but were not a standard service in Canadian academic research libraries and that libraries were actively participating in the development of OA funding models. Given the current Canadian context, the need of researchers for OA publishing support is likely to create pressure for continued adoption of OA funds among Canadian academic research institutions. However, assessment of existing OA funds is needed.

  12. Missing the mark: Current practices in teaching the male urogenital examination to Canadian undergraduate medical students. (United States)

    McAlpine, Kristen; Steele, Stephen


    The urogenital physical examination is an important aspect of patient encounters in various clinical settings. Introductory clinical skills sessions are intended to provide support and alleviate students' anxiety when learning this sensitive exam. The techniques each Canadian medical school uses to guide their students through the initial urogenital examination has not been previously reported. This study surveyed pre-clerkship clinical skills program directors at the main campus of English-speaking Canadian medical schools regarding the curriculum they use to teach the urogenital examination. A response rate of 100% was achieved, providing information on resources and faculty available to students, as well as the manner in which students were evaluated. Surprisingly, over one-third of the Canadian medical schools surveyed failed to provide a setting in which students perform a urogenital examination on a patient in their pre-clinical years. Additionally, there was no formal evaluation of this skill set reported by almost 50% of Canadian medical schools prior to clinical training years. To ensure medical students are confident and accurate in performing a urogenital examination, it is vital they be provided the proper resources, teaching, and training. As we progress towards a competency-based curriculum, it is essential that increased focus be placed on patient encounters in undergraduate training. Further research to quantify students' exposure to the urogenital examination during clinical years would be of interest. Without this commitment by Canadian medical schools, we are doing a disservice not only to the medical students, but also to our patient population.

  13. Too few, too weak: conflict of interest policies at Canadian medical schools. (United States)

    Shnier, Adrienne; Lexchin, Joel; Mintzes, Barbara; Jutel, Annemarie; Holloway, Kelly


    The education of medical students should be based on the best clinical information available, rather than on commercial interests. Previous research looking at university-wide conflict of interest (COI) policies used in Canadian medical schools has shown very poor regulation. An analysis of COI policies was undertaken to document the current policy environment in all 17 Canadian medical schools. A web search was used to initially locate COI policies supplemented by additional information from the deans of each medical school. Strength of policies was rated on a scale of 0 to 2 in 12 categories and also on the presence of enforcement measures. For each school, we report scores for all 12 categories, enforcement measures, and summative scores. COI policies received summative scores that ranged from 0 to 19, with 0 the lowest possible score obtainable and 24 the maximum. The highest mean scores per category were for disclosure and ghostwriting (0.9) and for gifts and scholarships (0.8). This study provides the first comprehensive evaluation of all 17 Canadian medical school-specific COI policies. Our results suggest that the COI policy environment at Canadian medical schools is generally permissive. Policy development is a dynamic process. We therefore encourage all Canadian medical schools to develop restrictive COI policies to ensure that their medical students are educated based on the best clinical evidence available, free of industry biases and COI relationships that may influence the future medical thinking and prescribing practices of medical students in Canada once they graduate.

  14. Preoperative screening: value of previous tests. (United States)

    Macpherson, D S; Snow, R; Lofgren, R P


    To determine the frequency of tests done in the year before elective surgery that might substitute for preoperative screening tests and to determine the frequency of test results that change from a normal value to a value likely to alter perioperative management. Retrospective cohort analysis of computerized laboratory data (complete blood count, sodium, potassium, and creatinine levels, prothrombin time, and partial thromboplastin time). Urban tertiary care Veterans Affairs Hospital. Consecutive sample of 1109 patients who had elective surgery in 1988. At admission, 7549 preoperative tests were done, 47% of which duplicated tests performed in the previous year. Of 3096 previous results that were normal as defined by hospital reference range and done closest to the time of but before admission (median interval, 2 months), 13 (0.4%; 95% CI, 0.2% to 0.7%), repeat values were outside a range considered acceptable for surgery. Most of the abnormalities were predictable from the patient's history, and most were not noted in the medical record. Of 461 previous tests that were abnormal, 78 (17%; CI, 13% to 20%) repeat values at admission were outside a range considered acceptable for surgery (P less than 0.001, frequency of clinically important abnormalities of patients with normal previous results with those with abnormal previous results). Physicians evaluating patients preoperatively could safely substitute the previous test results analyzed in this study for preoperative screening tests if the previous tests are normal and no obvious indication for retesting is present.

  15. Multi-Exciter Vibroacoustic Simulation of Hypersonic Flight Vibration

    International Nuclear Information System (INIS)



    Many aerospace structures must survive severe high frequency, hypersonic, random vibration during their flights. The random vibrations are generated by the turbulent boundary layer developed along the exterior of the structures during flight. These environments have not been simulated very well in the past using a fixed-based, single exciter input with an upper frequency range of 2 kHz. This study investigates the possibility of using acoustic ardor independently controlled multiple exciters to more accurately simulate hypersonic flight vibration. The test configuration, equipment, and methodology are described. Comparisons with actual flight measurements and previous single exciter simulations are also presented

  16. Canadian guidelines for acute bacterial rhinosinusitis (United States)

    Kaplan, Alan


    Objective To provide a clinical summary of the Canadian clinical practice guidelines for acute bacterial rhinosinusitis (ABRS) that includes relevant considerations for family physicians. Quality of evidence Guideline authors performed a systematic literature search and drafted recommendations. Recommendations received both strength of evidence and strength of recommendation ratings. Input from external content experts was sought, as was endorsement from Canadian medical societies (Association of Medical Microbiology and Infectious Disease Canada, Canadian Society of Allergy and Clinical Immunology, Canadian Society of Otolaryngology—Head and Neck Surgery, Canadian Association of Emergency Physicians, and the Family Physicians Airways Group of Canada). Main message Diagnosis of ABRS is based on the presence of specific symptoms and their duration; imaging or culture are not needed in uncomplicated cases. Treatment is dependent on symptom severity, with intranasal corticosteroids (INCSs) recommended as monotherapy for mild and moderate cases, although the benefit might be modest. Use of INCSs plus antibiotics is reserved for patients who fail to respond to INCSs after 72 hours, and for initial treatment of patients with severe symptoms. Antibiotic selection must account for the suspected pathogen, the risk of resistance, comorbid conditions, and local antimicrobial resistance trends. Adjunct therapies such as nasal saline irrigation are recommended. Failure to respond to treatment, recurrent episodes, and signs of complications should prompt referral to an otolaryngologist. The guidelines address situations unique to the Canadian health care environment, including actions to take during prolonged wait periods for specialist referral or imaging. Conclusion The Canadian guidelines provide up-to-date recommendations for diagnosis and treatment of ABRS that reflect an evolving understanding of the disease. In addition, the guidelines offer useful tools to help

  17. Automatic electromagnetic valve for previous vacuum

    International Nuclear Information System (INIS)

    Granados, C. E.; Martin, F.


    A valve which permits the maintenance of an installation vacuum when electric current fails is described. It also lets the air in the previous vacuum bomb to prevent the oil ascending in the vacuum tubes. (Author)

  18. Space flight nutrition research: platforms and analogs (United States)

    Smith, Scott M.; Uchakin, Peter N.; Tobin, Brian W.


    Conducting research during actual or simulated weightlessness is a challenging endeavor, where even the simplest activities may present significant challenges. This article reviews some of the potential obstacles associated with performing research during space flight and offers brief descriptions of current and previous space research platforms and ground-based analogs, including those for human, animal, and cell-based research. This review is intended to highlight the main issues of space flight research analogs and leave the specifics for each physiologic system for the other papers in this section.

  19. DAST in Flight (United States)


    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

  20. Canadian environmental sustainability indicators: highlights 2005

    International Nuclear Information System (INIS)


    Canadians' health and their social and economic well-being are fundamentally linked to the quality of their environment. Recognizing this, in 2004 the Government of Canada committed to establishing national indicators of freshwater quality, air quality and greenhouse gas emissions. The goal of these new indicators is to provide Canadians with more regular and reliable information on the state of their environment and how it is linked with human activity. Canadians need clearly defined environmental indicators - measuring sticks that can track the results that have been achieved through the efforts of governments, industries and individuals to protect and improve the environment. Environment Canada, Statistics Canada and Health Canada are working together to further develop and communicate these indicators. Reflecting the joint responsibility for environmental management in Canada, this effort has benefited from the cooperation and input of the provinces and territories. The indicators are: air quality; greenhouse gas emissions; and, freshwater quality. Air quality tracks Canadians' exposure to ground-level ozone - a key component of smog. The indicator measures one of the most common, harmful air pollutants to which people are exposed. The use of the seasonal average of ozone concentrations reflects the potential for long-term health effects. Greenhouse gas emissions tracks the annual releases of the six greenhouse gases that are the major contributors to climate change. The indicator comes directly from the greenhouse gas inventory report prepared by Environment Canada for the United Nations Framework Convention on Climate Change (UNFCCC) and the Kyoto Protocol. The data are widely used to report on progress toward Canada's Kyoto target for reduced emissions. Freshwater quality reports the status of surface water quality at selected monitoring sites across the country. For this first report, the focus of the indicator is on the protection of aquatic life, such as

  1. Operative Landscape at Canadian Neurosurgery Residency Programs. (United States)

    Tso, Michael K; Dakson, Ayoub; Ahmed, Syed Uzair; Bigder, Mark; Elliott, Cameron; Guha, Daipayan; Iorio-Morin, Christian; Kameda-Smith, Michelle; Lavergne, Pascal; Makarenko, Serge; Taccone, Michael S; Wang, Bill; Winkler-Schwartz, Alexander; Sankar, Tejas; Christie, Sean D


    Background Currently, the literature lacks reliable data regarding operative case volumes at Canadian neurosurgery residency programs. Our objective was to provide a snapshot of the operative landscape in Canadian neurosurgical training using the trainee-led Canadian Neurosurgery Research Collaborative. Anonymized administrative operative data were gathered from each neurosurgery residency program from January 1, 2014, to December 31, 2014. Procedures were broadly classified into cranial, spine, peripheral nerve, and miscellaneous procedures. A number of prespecified subspecialty procedures were recorded. We defined the resident case index as the ratio of the total number of operations to the total number of neurosurgery residents in that program. Resident number included both Canadian medical and international medical graduates, and included residents on the neurosurgery service, off-service, or on leave for research or other personal reasons. Overall, there was an average of 1845 operative cases per neurosurgery residency program. The mean numbers of cranial, spine, peripheral nerve, and miscellaneous procedures were 725, 466, 48, and 193, respectively. The nationwide mean resident case indices for cranial, spine, peripheral nerve, and total procedures were 90, 58, 5, and 196, respectively. There was some variation in the resident case indices for specific subspecialty procedures, with some training programs not performing carotid endarterectomy or endoscopic transsphenoidal procedures. This study presents the breadth of neurosurgical training within Canadian neurosurgery residency programs. These results may help inform the implementation of neurosurgery training as the Royal College of Physicians and Surgeons residency training transitions to a competence-by-design curriculum.

  2. 2009 Canadian Radiation Oncology Resident Survey

    International Nuclear Information System (INIS)

    Debenham, Brock; Banerjee, Robyn; Fairchild, Alysa; Dundas, George; Trotter, Theresa; Yee, Don


    Purpose: Statistics from the Canadian post-MD education registry show that numbers of Canadian radiation oncology (RO) trainees have risen from 62 in 1999 to approximately 150 per year between 2003 and 2009, contributing to the current perceived downturn in employment opportunities for radiation oncologists in Canada. When last surveyed in 2003, Canadian RO residents identified job availability as their main concern. Our objective was to survey current Canadian RO residents on their training and career plans. Methods and Materials: Trainees from the 13 Canadian residency programs using the national matching service were sought. Potential respondents were identified through individual program directors or chief resident and were e-mailed a secure link to an online survey. Descriptive statistics were used to report responses. Results: The eligible response rate was 53% (83/156). Similar to the 2003 survey, respondents generally expressed high satisfaction with their programs and specialty. The most frequently expressed perceived weakness in their training differed from 2003, with 46.5% of current respondents feeling unprepared to enter the job market. 72% plan on pursuing a postresidency fellowship. Most respondents intend to practice in Canada. Fewer than 20% of respondents believe that there is a strong demand for radiation oncologists in Canada. Conclusions: Respondents to the current survey expressed significant satisfaction with their career choice and training program. However, differences exist compared with the 2003 survey, including the current perceived lack of demand for radiation oncologists in Canada.

  3. Concomitant and previous osteoporotic vertebral fractures. (United States)

    Lenski, Markus; Büser, Natalie; Scherer, Michael


    Background and purpose - Patients with osteoporosis who present with an acute onset of back pain often have multiple fractures on plain radiographs. Differentiation of an acute osteoporotic vertebral fracture (AOVF) from previous fractures is difficult. The aim of this study was to investigate the incidence of concomitant AOVFs and previous OVFs in patients with symptomatic AOVFs, and to identify risk factors for concomitant AOVFs. Patients and methods - This was a prospective epidemiological study based on the Registry of Pathological Osteoporotic Vertebral Fractures (REPAPORA) with 1,005 patients and 2,874 osteoporotic vertebral fractures, which has been running since February 1, 2006. Concomitant fractures are defined as at least 2 acute short-tau inversion recovery (STIR-) positive vertebral fractures that happen concomitantly. A previous fracture is a STIR-negative fracture at the time of initial diagnostics. Logistic regression was used to examine the influence of various variables on the incidence of concomitant fractures. Results - More than 99% of osteoporotic vertebral fractures occurred in the thoracic and lumbar spine. The incidence of concomitant fractures at the time of first patient contact was 26% and that of previous fractures was 60%. The odds ratio (OR) for concomitant fractures decreased with a higher number of previous fractures (OR =0.86; p = 0.03) and higher dual-energy X-ray absorptiometry T-score (OR =0.72; p = 0.003). Interpretation - Concomitant and previous osteoporotic vertebral fractures are common. Risk factors for concomitant fractures are a low T-score and a low number of previous vertebral fractures in cases of osteoporotic vertebral fracture. An MRI scan of the the complete thoracic and lumbar spine with STIR sequence reduces the risk of under-diagnosis and under-treatment.

  4. Aerodynamics of bird flight

    Directory of Open Access Journals (Sweden)

    Dvořák Rudolf


    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.

  5. Uterine rupture without previous caesarean delivery

    DEFF Research Database (Denmark)

    Thisted, Dorthe L. A.; H. Mortensen, Laust; Krebs, Lone


    OBJECTIVE: To determine incidence and patient characteristics of women with uterine rupture during singleton births at term without a previous caesarean delivery. STUDY DESIGN: Population based cohort study. Women with term singleton birth, no record of previous caesarean delivery and planned...... vaginal delivery (n=611,803) were identified in the Danish Medical Birth Registry (1997-2008). Medical records from women recorded with uterine rupture during labour were reviewed to ascertain events of complete uterine rupture. Relative Risk (RR) and adjusted Relative Risk Ratio (aRR) of complete uterine...... rupture with 95% confidence intervals (95% CI) were ascertained according to characteristics of the women and of the delivery. RESULTS: We identified 20 cases with complete uterine rupture. The incidence of complete uterine rupture among women without previous caesarean delivery was about 3...

  6. X-37 Flight Demonstrator (United States)


    The photograph depicts the X-37 neutral buoyancy simulator mockup at Dryden Flight Research Center. The X-37 experimental launch vehicle is roughly 27.5 feet (8.3 meters) long and 15 feet (4.5 meters) in wingspan. Its experiment bay is 7 feet (2.1 meters) long and 4 feet (1.2 meters) in diameter. Designed to operate in both the orbital and reentry phases of flight, the X-37 will increase both safety and reliabiltiy, while reducing launch costs from $10,000 per pound to $1000 per pound. Managed by Marshall Space Flight Center and built by the boeing Company, the X-37 is scheduled to fly two orbital missions in 2002/2003 to test the reusable launch vehicle technologies.

  7. Peacock: 100 years of servicing Canadian industry

    International Nuclear Information System (INIS)



    In 1997 Peacock Inc., a supplier of pipeline, filtration, pumping, materials handling and mechanical equipment of all kinds to the Canadian oil and natural gas industries, will celebrate its 100th year of servicing Canadian industry, and 50th year in the oil patch. The company has outlets in several Canadian cities from Halifax to Vancouver. It manufactures, distributes, maintains and repairs all types of industrial equipment. It also manages the Naval Engineering Test Establishment at LaSalle, PQ, for the Department of Defence. Peacock service centres provide 24-hour service response to emergency breakdowns anywhere in Canada; its engineers and technicians are ISO 9003 qualified or better, and are experts in turnarounds and planned maintenance outages, major overhauls of critical equipment, supplying mechanical crews for emergency equipment breakdowns, and grouting of heavy machinery. By close coordination of its four divisions, and by maintaining their dedication to service, the company looks to the future with pride and confidence

  8. Canadian Petroleum Products Inst. annual report, 1991

    International Nuclear Information System (INIS)


    The Canadian Petroleum Products Institute (CPPI) was created in 1989 as a nonprofit association of Canadian refiners and marketers of petroleum products. In 1991, the Atlantic Petroleum Association, the Quebec Petroleum Association, the Ontario Petroleum Association, the Canada West Petroleum Association, and the Petroleum Association for Conservation of the Canadian Environment (PACE) were integrated into the CPPI. The objective of the CPPI is to serve and represent the refining and marketing sectors of the petroleum industry with respect to environment, health and safety, and business issues. An industry overview is provided, as well as highlights of environmental achievements and challenges, and economics and operations for the year. Lists of CPPI publications, standing committees, and officers are also included. 9 figs

  9. The importance of nature to Canadians: survey highlights

    National Research Council Canada - National Science Library

    DuWors, E


    .... The 1996 Survey on the Importance of Nature to Canadians (the Nature Survey) also tells us that Canadians commit large amounts of their leisure time to activities that depend on natural areas and wildlife...

  10. 75 FR 42015 - Prohibition Against Certain Flights Within the Territory and Airspace of Afghanistan... (United States)


    ...-0289; SFAR No. 110] RIN 2120-AJ69 Prohibition Against Certain Flights Within the Territory and Airspace... Analysis for the previously published proposed rule entitled, Prohibition Against Certain Flights Within... Prohibition Against Certain Flights Within the Territory and Airspace of Afghanistan.\\1\\ The comment period...

  11. Flight calls and orientation

    DEFF Research Database (Denmark)

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


      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...... 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...

  12. 2001 Flight Mechanics Symposium (United States)

    Lynch, John P. (Editor)


    This conference publication includes papers and abstracts presented at the Flight Mechanics Symposium held on June 19-21, 2001. Sponsored by the Guidance, Navigation and Control Center of Goddard Space Flight Center, this symposium featured technical papers on a wide range of issues related to attitude/orbit determination, prediction and control; attitude simulation; attitude sensor calibration; theoretical foundation of attitude computation; dynamics model improvements; autonomous navigation; constellation design and formation flying; estimation theory and computational techniques; Earth environment mission analysis and design; and, spacecraft re-entry mission design and operations.

  13. Canadian municipal carbon trading primer

    International Nuclear Information System (INIS)

    Seskus, A.


    The trading of greenhouse gas (GHG) emissions is being suggested as an effective economic way to meet Canada's Kyoto target. Emissions trading is a market-based instrument that can help achieve environmental improvements while using the market to absorb the economical and effective measures to achieve emissions reductions. Placing a value on emissions means that in order to minimize costs, companies will be motivated to apply the lowest-cost emission reductions possible for regulatory approval. The two main types of emissions trading that exist in Canada are the trading of emissions that lead to the formation of smog or acid rain, and the trading of greenhouse gas emissions that lead to climate change. Since carbon dioxide is the most prevalent GHG, making up approximately 75 per cent of Canadian GHG emissions, the trading of units of GHGs is often referred to as carbon trading. The impact that emissions trading will have on municipal operations was the focus of this primer. The trading of GHG involves buying and selling of allowances of GHGs between contracting parties, usually between one party that is short of GHG credits and another that has excess credits. The 3 common approaches to emissions trading include allowance trading (cap and trade), credit trading (baseline and credit), and a hybrid system which combines both credit and allowance trading systems. The issues that impact municipalities include the debate regarding who owns the credits from landfills, particularly if power is generated using landfill gas and the power is sold as green power. Other viable questions were also addressed, including who can claim emission reduction credits if a city implements energy efficiency projects, or fuel substitution programs. Also, will municipalities be allowed to trade internationally, for example, with municipalities in the United States, and how should they spend their money earned from selling credits. This report also presents highlights from 3 emissions

  14. INTRODUCTION Previous reports have documented a high ...

    African Journals Online (AJOL)

    pregnancy if they were married, educated, had dental insurance, previously used dental services when not pregnant, or had knowledge about the possible connection between oral health and pregnancy outcome8. The purpose of this study was to explore the factors determining good oral hygiene among pregnant women ...

  15. Empowerment perceptions of educational managers from previously ...

    African Journals Online (AJOL)

    The perceptions of educational manag ers from previously disadvantaged primary and high schools in the Nelson Mandela Metropole regarding the issue of empowerment are outlined and the perceptions of educational managers in terms of various aspects of empowerment at different levels reflected. A literature study ...

  16. Management of choledocholithiasis after previous gastrectomy. (United States)

    Anwer, S; Egan, R; Cross, N; Guru Naidu, S; Somasekar, K


    Common bile duct stones in patients with a previous gastrectomy can be a technical challenge because of the altered anatomy. This paper presents the successful management of two such patients using non-traditional techniques as conventional endoscopic retrograde cholangiopancreatography was not possible.

  17. Laboratory Grouping Based on Previous Courses. (United States)

    Doemling, Donald B.; Bowman, Douglas C.


    In a five-year study, second-year human physiology students were grouped for laboratory according to previous physiology and laboratory experience. No significant differences in course or board examination performance were found, though correlations were found between predental grade-point averages and grouping. (MSE)

  18. The Canadian approach to nuclear power safety

    International Nuclear Information System (INIS)

    Atchison, R.J.; Boyd, F.C.; Domaratski, Z.


    The development of the Canadian nuclear power safety philosophy and practice is traced from its early roots at the Chalk River Nuclear Laboratory to the licensing of the current generation of power reactors. Basic to the philosophy is a recognition that the primary responsibility for achieving a high standard of safety resides with the licensee. As a consequence, regulatory requirements have emphasized numerical safety goals and objectives and minimized specific design or operating rules. The Canadian licensing process is described along with a discussion of some of the difficulties encountered. Examples of specific licensing considerations for each phase of a project are included

  19. Climate change 2 - Canadian technology development conference

    International Nuclear Information System (INIS)

    Tsang, K.T.


    These Conference Proceedings summarise the program of the 'Climate Change 2: Canadian Technology Development' Conference held on October 3-5, 2001 in Toronto, Ontario, Canada. The Conference program was multidisciplinary, representing diverse science and technology-oriented associations and organizations from across Canada. The conference was designed to provide a forum to explore and showcase Canadian technologies that could be developed and deployed to reduce greenhouse-gas emissions and/or remove greenhouse gases from the atmosphere. The Conference brought together national and provincial policy makers and innovators to discover, discuss and develop technologies and strategies to encourage appropriate energy, agriculture and forestry technology

  20. Management of hereditary angioedema: 2010 Canadian approach (United States)


    C1-inhibitor (C1-INH) deficiency is a rare blood disorder resulting in angioedema attacks that are debilitating and may be life-threatening. Prophylaxis and therapy of events has changed since our first Canadian Consensus Conference on the diagnosis, therapy and management of HAE. We have formed the Canadian Hereditary Angioedema Network (CHAEN)/Réseau Canadien d'Angioédème Héréditaire (RCAH) - to advance care of patients with this disorder in Canada. We here present a review of management of HAE in Canada. PMID:20667123

  1. Canadian approach to nuclear power safety

    International Nuclear Information System (INIS)

    Atchison, R.J.; Boyd, F.C.; Domaratzki, Z.


    The development of the Canadian nuclear power safety philosophy and practice is traced from its early roots at the Chalk River Nuclear Laboratories to the licensing of the current generation of power reactors. Basic to the philosophy is a recognition that the licensee is primarily responsible for achieving a high standard safety. As a consequence, regulatory requirements have emphasized numerical safety goals and objectives and minimized specific design or operating rules. In this article the Canadian licensing process is described with a discussion of some of the difficulties encountered. Examples of specific licensing considerations for each phase of a project are included

  2. The Canadian nuclear fuel waste management program

    International Nuclear Information System (INIS)

    Rummery, T.E.; Rosinger, E.L.J.


    The Canadian Nuclear Fuel Waste Management Program is now well established. This report outlines the generic research and technological development underway in this program to assess the concept of immobilization and subsequent disposal of nuclear fuel waste deep in a stable plutonic rock in the Canadian Shield. The program participants, funding, schedule and associated external review processes are briefly outlined. The major scientific and engineering components of the program, namely, immobilization studies, geoscience research and environmental and safety assessment, are described in more detail

  3. The Scholarship of Canadian Research University Librarians

    Directory of Open Access Journals (Sweden)

    David Fox


    Full Text Available This paper reports the results of a national survey of Canadian research university librarians conducted by the author in 2006. The study deals with the motivation of librarians to engage in scholarly activities, the requirement for scholarship by librarians at Canadian research universities, the perceived importance of scholarship as a criterion for promotion and tenure, levels and forms of participation in scholarship, and librarians’ assessment of various types of support for scholarship. The study concluded that 13% of the sample population could be considered active scholars, and suggests that there may be a correlation between level of scholarly intensity and gender. The paper concludes with questions for further study.

  4. Statistics in action a Canadian outlook

    CERN Document Server

    Lawless, Jerald F


    Commissioned by the Statistical Society of Canada (SSC), Statistics in Action: A Canadian Outlook helps both general readers and users of statistics better appreciate the scope and importance of statistics. It presents the ways in which statistics is used while highlighting key contributions that Canadian statisticians are making to science, technology, business, government, and other areas. The book emphasizes the role and impact of computing in statistical modeling and analysis, including the issues involved with the huge amounts of data being generated by automated processes.The first two c

  5. Drinking water consumption patterns in Canadian communities (2001-2007). (United States)

    Roche, S M; Jones, A Q; Majowicz, S E; McEwen, S A; Pintar, K D M


    A pooled analysis of seven cross-sectional studies from Newfoundland and Labrador, Waterloo and Hamilton Regions, Ontario and Vancouver, East Kootenay and Northern Interior Regions, British Columbia (2001 to 2007) was performed to investigate the drinking water consumption patterns of Canadians and to identify factors associated with the volume of tap water consumed. The mean volume of tap water consumed was 1.2 L/day, with a large range (0.03 to 9.0 L/day). In-home water treatment and interactions between age and gender and age and bottled water use were significantly associated with the volume of tap water consumed in multivariable analyses. Approximately 25% (2,221/8,916) of participants were classified as bottled water users, meaning that 75% or more of their total daily drinking water intake was bottled. Approximately 48.6% (4,307/8,799) of participants used an in-home treatment method to treat their tap water for drinking purposes. This study provides a broader geographic perspective and more current estimates of Canadian water consumption patterns than previous studies. The identified factors associated with daily water consumption could be beneficial for risk assessors to identify individuals who may be at greater risk of waterborne illness.

  6. Dietary supplementation practices in Canadian high-performance athletes. (United States)

    Lun, Victor; Erdman, Kelly A; Fung, Tak S; Reimer, Raylene A


    Dietary supplementation is a common practice in athletes with a desire to enhance performance, training, exercise recovery, and health. Supplementation habits of elite athletes in western Canada have been documented, but research is lacking on supplement use by athletes across Canada. The purpose of this descriptive study was to evaluate the dietary supplementation practices and perspectives of high-performance Canadian athletes affiliated with each of the country's eight Canadian Sport Centres. Dietitians administered a validated survey to 440 athletes (63% women, 37% men; M=19.99±5.20 yr) representing 34 sports who predominantly trained≥16 hr/wk, most competing in "power" based sports. Within the previous 6 months, 87% declared having taken≥3 dietary supplements, with sports drinks, multivitamin and mineral preparations, carbohydrate sports bars, protein powder, and meal-replacement products the most prevalent supplements reported. Primary sources of information on supplementation, supplementation justification, and preferred means of supplementation education were identified. Fifty-nine percent reported awareness of current World Anti-Doping Agency legislation, and 83% subjectively believed they were in compliance with such anti-doping regulations. It was concluded that supplementation rates are not declining in Canada, current advisors on supplementation for this athletic population are not credible, and sports medicine physicians and dietitians need to consider proactive strategies to improve their influence on supplementation practices in these elite athletes.

  7. Antimycobacterial triterpenes from the Canadian medicinal plant Sarracenia purpurea. (United States)

    Morrison, Steven A; Li, Haoxin; Webster, Duncan; Johnson, John A; Gray, Christopher A


    The purple pitcher plant, Sarracenia purpurea, is a medicinal plant used by the Canadian First Nations to treat a wide variety of illnesses. The Mi'kmaq and Wolastoqiyik (Maliseet) peoples of Eastern Canada have traditionally used infusions of S. purpurea for the treatment of tuberculosis-like symptoms. Previous investigations have shown methanolic extracts of S. purpurea to possess antimycobacterial activity. To isolate and identify antimycobacterial constituents from S. purpurea. Methanolic extracts of S. purpurea were subjected to bioassay guided fractionation using the microplate resazurin assay (MRA) to assess inhibitory activity against Mycobacterium tuberculosis strain H37Ra. The antimycobacterial constituents were identified by NMR, MS and polarimetry. The triterpenes betulinaldehyde, β-sitosterol, betulinic acid, and ursolic acid were isolated from S. purpurea. Betulinaldehyde, betulinic acid, and ursolic acid exhibited MICs of 450, 950, and 450μM and IC50s of 98, 169, and 93μM against M. tuberculosis H37Ra respectively whilst β-sitosterol was inactive (MIC and IC50 of >1000μM). Betulinaldehyde, betulinic acid, and ursolic acid were identified as the principal constituents responsible for the antimycobacterial activity of S. purpurea. This work is consistent with the ethnopharmacological use of S. purpurea by Canadian First Nations as a treatment against infectious diseases. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

  8. Oral health disparities and food insecurity in working poor Canadians. (United States)

    Muirhead, Vanessa; Quiñonez, Carlos; Figueiredo, Rafael; Locker, David


    This study explored oral health disparities associated with food insecurity in working poor Canadians. We used a cross-sectional stratified study design and telephone survey methodology to obtain data from 1049 working poor persons aged between 18 and 64 years. The survey instrument contained sociodemographic items, self-reported oral health measures, access to dental care indicators (dental visiting behaviour and insurance coverage) and questions about competing financial demands. Food-insecure persons gave 'often' or 'sometimes' responses to any of the three food insecurity indicators used in the Canadian Community Health Survey (2003) assessing 'worry' about not having enough food, not eating enough food and not having the desired quality of food because of insufficient finances in the previous 12 months. Food-insecure working poor persons had poor oral health compared with food-secure working poor persons indicated by a higher percentage of denture wearers (P oral health as good or very good (P oral health disparities between food-insecure and food-secure persons related to denture wearing, having a toothache, reporting poor/very poor self-rated oral health or experiencing an oral health impact persisted after adjusting for sociodemographic factors and access to dental care factors (P poor persons reported relinquishing goods or services in order to pay for necessary dental care. This study identified oral health disparities within an already marginalized group not alleviated by access to professional dental care. Working poor persons regarded professional dental care as a competing financial demand.

  9. Recent trends in the prevalence of overweight and obesity among Canadian children. (United States)

    Rodd, Celia; Sharma, Atul K


    Previous studies have shown an increase in the prevalence of overweight and obesity among Canadian children from 23.3% to 34.7% during 1978-2004. We examined the most recent trends by applying current definitions of overweight and obesity based on World Health Organization (WHO) body mass index (BMI) thresholds and recently validated norms for waist circumference and waist:height ratio. We examined directly measured height and weight data from the Canadian Community Health Survey (2004-2005) and the Canadian Health Measures Survey (2009-2013). We calculated z scores for BMI, height and weight based on the 2014 WHO growth charts for Canada, including the new extension of weight-for-age beyond 10 years. To calculate z scores for waist circumference and waist:height ratios, we used new charts from the reference population in the US NHANES III (National Health and Nutrition Examination Survey, 1988-1994). Data were available for 14 014 children aged 3-19 years for the period 2004-2013. We observed a decline in the prevalence of overweight or obesity, from 30.7% (95% confidence interval [CI] 29.7% to 31.6%) to 27.0% (95% CI 25.3% to 28.7%) (p obesity at about 13%. These trends persisted after we adjusted for age, sex and race/ethnicity. Although they declined, the median z scores for BMI, weight and height were positive and higher than those in the WHO reference population. The z scores for waist circumference and waist:height ratio were negative, which indicated that the Canadian children had less central adiposity than American children in historic or contemporary NHANES cohorts. After a period of dramatic growth, BMI z scores and the prevalence of overweight or obesity among Canadian children decreased from 2004 to 2013, which attests to progress against this important public health challenge. © 2016 Canadian Medical Association or its licensors.

  10. Mercury in the marine environment of the Canadian Arctic: review of recent findings. (United States)

    Braune, Birgit; Chételat, John; Amyot, Marc; Brown, Tanya; Clayden, Meredith; Evans, Marlene; Fisk, Aaron; Gaden, Ashley; Girard, Catherine; Hare, Alex; Kirk, Jane; Lehnherr, Igor; Letcher, Robert; Loseto, Lisa; Macdonald, Robie; Mann, Erin; McMeans, Bailey; Muir, Derek; O'Driscoll, Nelson; Poulain, Alexandre; Reimer, Ken; Stern, Gary


    This review summarizes data and information which have been generated on mercury (Hg) in the marine environment of the Canadian Arctic since the previous Canadian Arctic Contaminants Assessment Report (CACAR) was released in 2003. Much new information has been collected on Hg concentrations in marine water, snow and ice in the Canadian Arctic. The first measurements of methylation rates in Arctic seawater indicate that the water column is an important site for Hg methylation. Arctic marine waters were also found to be a substantial source of gaseous Hg to the atmosphere during the ice-free season. High Hg concentrations have been found in marine snow as a result of deposition following atmospheric mercury depletion events, although much of this Hg is photoreduced and re-emitted back to the atmosphere. The most extensive sampling of marine sediments in the Canadian Arctic was carried out in Hudson Bay where sediment total Hg (THg) concentrations were low compared with other marine regions in the circumpolar Arctic. Mass balance models have been developed to provide quantitative estimates of THg fluxes into and out of the Arctic Ocean and Hudson Bay. Several recent studies on Hg biomagnification have improved our understanding of trophic transfer of Hg through marine food webs. Over the past several decades, Hg concentrations have increased in some marine biota, while other populations showed no temporal change. Marine biota also exhibited considerable geographic variation in Hg concentrations with ringed seals, beluga and polar bears from the Beaufort Sea region having higher Hg concentrations compared with other parts of the Canadian Arctic. The drivers of these variable patterns of Hg bioaccumulation, both regionally and temporally, within the Canadian Arctic remain unclear. Further research is needed to identify the underlying processes including the interplay between biogeochemical and food web processes and climate change. Crown Copyright © 2014. Published by

  11. Something to Chew On: Canadian Fiction for Young Adults. (United States)

    Pederson, Beverley

    An annotated bibliography of fiction about Canada or written by Canadian authors is presented. The list is intended as a guide for Canadian young adult readers in search of a literature they can identify as their own. It can also be used by librarians and teachers who need assistance in selecting novels and short stories for young Canadians. Over…

  12. The flow of radionuclides through the Canadian archipelago

    International Nuclear Information System (INIS)

    Ellis, K.; Smith, J.N.


    The transport of contaminants to the Canadian Arctic by air and in water and their concentration through the marine food web has lead to enhanced levels of contaminants in several foods of Canadian northern inhabitants. Artificial radionuclides in the marine water can be used to determine water circulation and to trace contaminant transport through the Canadian Archipelago

  13. Women in the Canadian Economy: A Teaching Unit. (United States)

    Post, Sylvia; Staunton, Ted, Ed.

    One of a series of teaching units designed to introduce secondary school students to the Canadian economy, this handbook contains activities on the economic status and roles of Canadian women. The first of 4 sections presents a profile of male and female occupations. Section 2 contains statistics on females in the Canadian labor force. Section 3,…

  14. Next-generation models for Canadian collaboration in international ...

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

    Through this project, the Canadian Council for International Cooperation (CCIC), in partnership with the Canadian Association for the Study of International Development, will identify and promote new ways for Canadian practitioners, academics, and public policymakers to work together in international development.

  15. Oh, Canada: Bridges and Barriers to Inclusion in Canadian Schools (United States)

    Sokal, Laura; Katz, Jennifer


    Inclusion in Canadian schools, both academic and social, is explored through the historic legislative structures that have resulted in a diversity of approaches to meeting the educational needs of Canadians. Innovative programmes that have been developed which showcase Canadian commitment to inclusive academic and social practices are described.…

  16. Range Flight Safety Requirements (United States)

    Loftin, Charles E.; Hudson, Sandra M.


    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. 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.

  17. Flight Mechanics Symposium 1997 (United States)

    Walls, Donna M. (Editor)


    This conference publication includes papers and abstracts presented at the Flight Mechanics Symposium. This symposium featured technical papers on a wide range of issues related to orbit-attitude prediction, determination, and control; attitude sensor calibration; attitude determination error analysis; attitude dynamics; and orbit decay and maneuver strategy. Government, industry, and the academic community participated in the preparation and presentation of these papers.

  18. Autonomous Formation Flight (United States)

    Schkolnik, Gerard S.; Cobleigh, Brent


    NASA's Strategic Plan for the Aerospace Technology Enterprise includes ambitious objectives focused on affordable air travel, reduced emissions, and expanded aviation-system capacity. NASA Dryden Flight Research Center, in cooperation with NASA Ames Research Center, the Boeing Company, and the University of California, Los Angeles, has embarked on an autonomous-formation-flight project that promises to make significant strides towards these goals. For millions of years, birds have taken advantage of the aerodynamic benefit of flying in formation. The traditional "V" formation flown by many species of birds (including gulls, pelicans, and geese) enables each of the trailing birds to fly in the upwash flow field that exists just outboard of the bird immediately ahead in the formation. The result for each trailing bird is a decrease in induced drag and thus a reduction in the energy needed to maintain a given speed. Hence, for migratory birds, formation flight extends the range of the system of birds over the range of birds flying solo. The Autonomous Formation Flight (AFF) Project is seeking to extend this symbiotic relationship to aircraft.

  19. Flight speeds of swifts (Apus apus): seasonal differences smaller than expected. (United States)

    Henningsson, P; Karlsson, H; Bäckman, J; Alerstam, T; Hedenström, A


    We have studied the nocturnal flight behaviour of the common swift (Apus apus L.), by the use of a tracking radar. Birds were tracked from Lund University in southern Sweden during spring migration, summer roosting flights and autumn migration. Flight speeds were compared with predictions from flight mechanical and optimal migration theories. During spring, flight speeds were predicted to be higher than during both summer and autumn due to time restriction. In such cases, birds fly at a flight speed that maximizes the overall speed of migration. For summer roosting flights, speeds were predicted to be lower than during both spring and autumn since the predicted flight speed is the minimum power speed that involves the lowest energy consumption per unit time. During autumn, we expected flight speeds to be higher than during summer but lower than during spring since the expected flight speed is the maximum range speed, which involves the lowest energy consumption per unit distance. Flight speeds during spring were indeed higher than during both summer and autumn, which indicates time-selected spring migration. Speeds during autumn migration were very similar to those recorded during summer roosting flights. The general result shows that swifts change their flight speed between different flight behaviours to a smaller extent than expected. Furthermore, the difference between flight speeds during migration and roosting among swifts was found to be less pronounced than previously recorded.

  20. Previously unknown organomagnesium compounds in astrochemical context


    Ruf, Alexander


    We describe the detection of dihydroxymagnesium carboxylates (CHOMg) in astrochemical context. CHOMg was detected in meteorites via ultrahigh-resolving chemical analytics and represents a novel, previously unreported chemical class. Thus, chemical stability was probed via quantum chemical computations, in combination with experimental fragmentation techniques. Results propose the putative formation of green-chemical OH-Grignard-type molecules and triggered fundamental questions within chemica...

  1. [Placental complications after a previous cesarean section]. (United States)

    Milosević, Jelena; Lilić, Vekoslav; Tasić, Marija; Radović-Janosević, Dragana; Stefanović, Milan; Antić, Vladimir


    The incidence of cesarean section has been rising in the past 50 years. With the increased number of cesarean sections, the number of pregnancies with the previous cesarean section rises as well. The aim of this study was to establish the influence of the previous cesarean section on the development of placental complications: placenta previa, placental abruption and placenta accreta, as well as to determine the influence of the number of previous cesarean sections on the complication development. The research was conducted at the Clinic of Gynecology and Obstetrics in Nis covering 10-year-period (from 1995 to 2005) with 32358 deliveries, 1280 deliveries after a previous cesarean section, 131 cases of placenta previa and 118 cases of placental abruption. The experimental groups was presented by the cases of placenta previa or placental abruption with prior cesarean section in obstetrics history, opposite to the control group having the same conditions but without a cesarean section in medical history. The incidence of placenta previa in the control group was 0.33%, opposite to the 1.86% incidence after one cesarean section (pcesarean sections and as high as 14.28% after three cesarean sections in obstetric history. Placental abruption was recorded as placental complication in 0.33% pregnancies in the control group, while its incidence was 1.02% after one cesarean section (pcesarean sections. The difference in the incidence of intrapartal hysterectomy between the group with prior cesarean section (0.86%) and without it (0.006%) shows a high statistical significance (pcesarean section is an important risk factor for the development of placental complications.

  2. Urban habitats and feeders both contribute to flight initiation distance reduction in birds


    Anders Pape Møller; Piotr Tryjanowski; Mario Díaz; Zbigniew Kwieciński; Piotr Indykiewicz; Cezary Mitrus; Artur Goławski; Michał Polakowski


    Animals respond to approaching predators by taking flight at a distance that optimizes the costs and benefits of such flight. Previous studies have shown that urban populations of birds have shorter flight initiation distances than rural populations of the same species, that this difference is partly explained by differences in the community of predators, and that a longer history of urbanization implies a greater reduction in flight initiation distance in urban populations. The use of birdfe...

  3. Summary of Canadian Guidelines for the Initial Management of Community-Acquired Pneumonia: An Evidence-Based Update by the Canadian Infectious Disease Society and the Canadian Thoracic Society

    Directory of Open Access Journals (Sweden)

    Lionel A Mandell


    Full Text Available Community-acquired pneumonia (CAP is a serious illness with a significant impact on individual patients and society as a whole. Over the past several years, there have been significant advances in the knowledge and understanding of the etiology of the disease, and an appreciation of problems such as mixed infections and increasing antimicrobial resistance. The development of additional fluoroquinolone agents with enhanced activity against Streptococcus pneumoniae has been important as well. It was decided that the time had come to update and modify the previous CAP guidelines, which were published in 1993. The current guidelines represent a joint effort by the Canadian Infectious Diseases Society and the Canadian Thoracic Society, and they address the etiology, diagnosis and initial management of CAP. The diagnostic section is based on the site of care, and the treatment section is organized according to whether one is dealing with outpatients, inpatients or nursing home patients.

  4. Stroke in Commercial Flights. (United States)

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


    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.

  5. In the Field: The Canadian Ecology Centre. (United States)

    Magee, Clare


    The Canadian Ecology Centre (Ontario) offers year-round residential and day programs in outdoor and environmental education for secondary students, field placement and internship opportunities for college students, and ecotourism programs, while providing employment and tax revenues to the local community. Dubbed consensus environmentalism, the…

  6. Indigenous populations health protection: A Canadian perspective

    Directory of Open Access Journals (Sweden)

    Richardson Katya L


    Full Text Available Abstract The disproportionate effects of the 2009 H1N1 pandemic on many Canadian Aboriginal communities have drawn attention to the vulnerability of these communities in terms of health outcomes in the face of emerging and reemerging infectious diseases. Exploring the particular challenges facing these communities is essential to improving public health planning. In alignment with the objectives of the Pandemic Influenza Outbreak Research Modelling (Pan-InfORM team, a Canadian public health workshop was held at the Centre for Disease Modelling (CDM to: (i evaluate post-pandemic research findings; (ii identify existing gaps in knowledge that have yet to be addressed through ongoing research and collaborative activities; and (iii build upon existing partnerships within the research community to forge new collaborative links with Aboriginal health organizations. The workshop achieved its objectives in identifying main research findings and emerging information post pandemic, and highlighting key challenges that pose significant impediments to the health protection and promotion of Canadian Aboriginal populations. The health challenges faced by Canadian indigenous populations are unique and complex, and can only be addressed through active engagement with affected communities. The academic research community will need to develop a new interdisciplinary framework, building upon concepts from ‘Communities of Practice’, to ensure that the research priorities are identified and targeted, and the outcomes are translated into the context of community health to improve policy and practice.

  7. No. 354-Canadian HIV Pregnancy Planning Guidelines. (United States)

    Loutfy, Mona; Kennedy, V Logan; Poliquin, Vanessa; Dzineku, Frederick; Dean, Nicola L; Margolese, Shari; Symington, Alison; Money, Deborah M; Hamilton, Scot; Conway, Tracey; Khan, Sarah; Yudin, Mark H


    The objective of the Canadian HIV Pregnancy Planning Guidelines is to provide clinical information and recommendations for health care providers to assist Canadians affected by HIV with their fertility, preconception, and pregnancy planning decisions. These guidelines are evidence- and community-based and flexible and take into account diverse and intersecting local/population needs based on the social determinants of health. EVIDENCE: Literature searches were conducted by a librarian using the Medline, Cochrane Central Register of Controlled Trials (CENTRAL), and Embase databases for published articles in English and French related to HIV and pregnancy and HIV and pregnancy planning for each section of the guidelines. The full search strategy is available upon request. The evidence obtained was reviewed and evaluated by the Infectious Diseases Committee of the SOGC under the leadership of the principal authors, and recommendations were made according to the guidelines developed by the Canadian Task Force on Preventive Health Care and through use of the Appraisal of Guidelines Research and Evaluation instrument for the development of clinical guidelines. Guideline implementation should assist the practitioner in developing an evidence-based approach for the prevention of unplanned pregnancy, preconception, fertility, and pregnancy planning counselling in the context of HIV infection. These guidelines have been reviewed and approved by the Infectious Disease Committee and the Executive and Council of the SOGC. Canadian Institutes of Health Research Grant Planning and Dissemination grant (Funding Reference # 137186), which funded a Development Team meeting in 2016. Crown Copyright © 2018. Published by Elsevier Inc. All rights reserved.

  8. Canadian Adult Education: Still a Movement (United States)

    Nesbit, Tom


    Writing recently in this journal, two of Canada's veteran adult educators contemplated the "death" of the Canadian adult education movement. I disagree and argue that adult education in Canada is as vital an activity as ever and one that still fully justifies being called a movement. Specifically, Selman and Selman (2009) list five…

  9. CASID and Canadian Journal of Development Studies ...

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

    CASID was founded in 1989 by a group of individuals from the academic and practitioner community to provide a forum for Canadian scholars, policymakers, ... strengthen its capacity to deliver its programs, but also to do so more efficiently and effectively by improving itself as an organization in critical areas of performance.

  10. The Canadian experience in frontier environmental protection

    International Nuclear Information System (INIS)

    Jones, G.H.


    Early Canadian frontier exploration (from 1955 onshore and from 1966 for offshore drilling) caused insignificant public concern. The 1967-1968 Torrey Canyon Tanker and Santa Barbara disasters roused public opinion and governments. In Canada, 1969-1970 Arctic gas blowouts, a tanker disaster, and damage to the 'Manhattan' exacerbated concerns and resulted in new environmental regulatory constraints. From 1970, the Arctic Petroleum Operations Association learned to operate safely with environmental responsibility. It studied physical environment for design criteria, and the biological and human environment to ameliorate impact. APOA's research projects covered sea-ice, permafrost, sea-bottom, oil-spills, bird and mammal migration, fish habitat, food chains, oceanography, meteorology, hunters'/trappers' harvests, etc. In 1971 Eastcoast Petroleum Operators' Association and Alaska Oil and Gas Association followed APOA's cooperative research model. EPOA stressed icebergs and fisheries. Certain research was handled by the Canadian Offshore Oil Spill Research Association. By the mid-1980s these associations had undertaken $70,000,000 of environmental oriented research, with equivalent additional work by member companies on specific needs and similar sums by Federal agencies often working with industry on complementary research. The frontier associations then merged with the Canadian Petroleum Association, already active environmentally in western Canada. Working with government and informing environmental interest groups, the public, natives, and local groups, most Canadian frontier petroleum operations proceeded with minimal delay and environmental disturbance

  11. 2003 survey of Canadian radiation oncology residents

    International Nuclear Information System (INIS)

    Yee, Don; Fairchild, Alysa; Keyes, Mira; Butler, Jim; Dundas, George


    Purpose: Radiation oncology's popularity as a career in Canada has surged in the past 5 years. Consequently, resident numbers in Canadian radiation oncology residencies are at all-time highs. This study aimed to survey Canadian radiation oncology residents about their opinions of their specialty and training experiences. Methods and Materials: Residents of Canadian radiation oncology residencies that enroll trainees through the Canadian Resident Matching Service were identified from a national database. Residents were mailed an anonymous survey. Results: Eight of 101 (7.9%) potential respondents were foreign funded. Fifty-two of 101 (51.5%) residents responded. A strong record of graduating its residents was the most important factor residents considered when choosing programs. Satisfaction with their program was expressed by 92.3% of respondents, and 94.3% expressed satisfaction with their specialty. Respondents planning to practice in Canada totaled 80.8%, and 76.9% plan to have academic careers. Respondents identified job availability and receiving adequate teaching from preceptors during residency as their most important concerns. Conclusions: Though most respondents are satisfied with their programs and specialty, job availability and adequate teaching are concerns. In the future, limited time and resources and the continued popularity of radiation oncology as a career will magnify the challenge of training competent radiation oncologists in Canada

  12. Reducing dietary sodium intake: the Canadian context. (United States)

    Barr, Susan I


    Sodium is a required nutrient; Adequate Intakes for adults range from 1200 to 1500 mg*day(-1), depending on age. The Tolerable Upper Intake Level (UL) for sodium is 2300 mg*day(-1) for adults, based on the relationship between sodium intake and increased blood pressure. Elevated blood pressure, which is prevalent among Canadians, is, in turn, a major risk factor for stroke, cardiovascular disease, and renal disease. Sodium intake is not the only determinant of blood pressure; other modifiable risk factors include relative mass, physical activity, overall dietary quality, and alcohol consumption. However, because >90% of adult Canadian men and two thirds of Canadian women have sodium intakes above the UL, Health Canada's Working Group on Dietary Sodium Reduction has been charged with developing, implementing, and overseeing a strategy to reduce Canadians' sodium intakes. It is estimated that approximately 75% of dietary sodium is added during food processing; in addition to taste and palatability, sodium also has functional roles in food manufacturing and preservation, although the amounts used often exceed those required. Because of the central role of processed foods in sodium intake, the strategy proposed by Health Canada's Working Group includes voluntary reduction of sodium in processed foods and foods sold in food service establishments. It will also include an education and awareness campaign, and research and surveillance. Initiatives to reduce sodium in other parts of the world have demonstrated that it will be challenging to reduce sodium intake to the recommended range and will likely require many years to accomplish.

  13. Theoretical Analysis of Canadian Lifelong Education Development (United States)

    Mukan, Natalia; Barabash, Olena; Busko, Maria


    In the article, the problem of Canadian lifelong education development has been studied. The main objectives of the article are defined as theoretical analysis of scientific and pedagogical literature which highlights different aspects of the research problem; periods of lifelong education development; and determination of lifelong learning role…

  14. Further Education Pathways of Canadian University Graduates (United States)

    Adamuti-Trache, Maria


    Through secondary analysis of the National Graduate Survey data, this study examines determinants of choice of further education pathways by Canadian university graduates in early 2000s. This paper extends the Cross' participation model by introducing a typology of path choices that are related to socio-demographic, post-secondary and situational…

  15. Canadian Association of Gastroenterology 2004 Strategic Plan

    Directory of Open Access Journals (Sweden)

    Philip M Sherman


    Full Text Available Presented below is the Canadian Association of Gastroenterology (CAG five year Strategic Plan for July 2004 to June 2009. The Strategic Plan represents an extension of the organization's original 1993 Strategic Plan (1, and directly reflects input from the membership provided via a Strategic Planning Needs Analysis undertaken in the fall of 2002 (2.

  16. Canadian Perspectives on East Indian Immigrants. (United States)

    Naidoo, Josephine C.

    In this paper, various studies and surveys on the status of East Indians in Canada and attitudes towards them are summarized. The history of the East Indian immigration into Canada is sketched. A 1976 survey of attitudes of Canadians toward multiculturalism (Berry, Kalin, and Taylor, 1976) is outlined. A study of the intercultural perceptions of…

  17. Highlight: Canadian and Caribbean parliamentarians discuss open ...

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

    Open parliaments were also on the agenda in a session moderated by Senator David Smith, in the Centre Block of the Canadian Parliament Buildings. Increased information about legislative activities and greater opportunities for dialogue between citizens and their parliaments hold the promise of improving governance ...

  18. Forecasting Canadian nuclear power station construction costs

    International Nuclear Information System (INIS)

    Keng, C.W.K.


    Because of the huge volume of capital required to construct a modern electric power generating station, investment decisions have to be made with as complete an understanding of the consequences of the decision as possible. This understanding must be provided by the evaluation of future situations. A key consideration in an evaluation is the financial component. This paper attempts to use an econometric method to forecast the construction costs escalation of a standard Canadian nuclear generating station (NGS). A brief review of the history of Canadian nuclear electric power is provided. The major components of the construction costs of a Canadian NGS are studied and summarized. A database is built and indexes are prepared. Based on these indexes, an econometric forecasting model is constructed using an apparently new econometric methodology of forecasting modelling. Forecasts for a period of 40 years are generated and applications (such as alternative scenario forecasts and range forecasts) to uncertainty assessment and/or decision-making are demonstrated. The indexes, the model, and the forecasts and their applications, to the best of the author's knowledge, are the first for Canadian NGS constructions. (author)

  19. Antioxidant health messages in Canadian women's magazines. (United States)

    Steinberg, Alissa; Paisley, Judy; Bandayrel, Kristofer


    Recently, antioxidants have taken centre stage in media and advertising messages. While 80% of Canadians think they are well-informed about nutrition, many are confused about the health effects of specific nutrients. Forty-six percent of Canadians seek information from newspapers and books, and 67% of women rely on magazines. We examined the content and accuracy of antioxidant health messages in Canadian women's magazines. The top three Canadian magazines targeted at women readers were selected. A screening tool was developed, pilot tested, and used to identify eligible articles. A coding scheme was created to define variables, which were coded and analyzed. Seventy-seven percent of 36 magazine issues contained articles that mentioned antioxidants (n=56). Seventy-one percent (n=40) of articles reported positive health effects related to antioxidant consumption, and 36% and 40% of those articles framed those effects as definite and potential, respectively (p<0.01). The articles sampled conveyed messages about positive antioxidant health effects that are not supported by current evidence. Improved standards of health reporting are needed. Nutrition professionals may need to address this inaccuracy when they develop communications on antioxidants and health risk.

  20. Research Awards: Canadian Partnerships Program Deadline: 12 ...

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

    Jean-Claude Dumais


    Sep 12, 2012 ... This award provides young and upcoming professionals with a unique opportunity to strengthen their research skills and gain a fresh perspective on the Canadian community – both in universities and civil society organizations (CSOs) – that is actively engaged in creating, sharing, and using knowledge to ...

  1. Learning to Speak Everyday (Canadian) French (United States)

    Nadasdi, Terry; Mougeon, Raymond; Rehner, Katherine


    This article examines the sociolinguistic competence of French immersion students. We first present an overview of the range of variation found in L1 speech and make a distinction between vernacular, informal, formal, and hyper-formal variants. We then compare the use of these forms in the speech of Canadian francophones and Grade 9 and 12…

  2. The changing stance of the Canadian Government

    NARCIS (Netherlands)

    d'Haenens, L.S.J.; Proulx, S.


    This article looks at policy options taken by the Canadian government in an age of globalization and information. A first part explores federal government initiatives pertaining to Canada's preparedness for the information society. A second part assesses some provincial government policy options,

  3. Mathematic Achievement of Canadian Private School Students (United States)

    Cadigan, Francoise Jane; Wei, Yichun; Clifton, Rodney A.


    Very little Canadian research has examined the academic achievement of private school students. Data from The Programme for International Student Assessment (PISA) 2003 were used to examine the achievement of private school students. The study found that private school students outperformed their public school peers. In addition, the students'…

  4. After Access: Canadian Education and Copyright Reform (United States)

    Geist, Michael


    With the dramatic growth of the Internet in the 1990s, the Canadian government developed a well-regarded strategy for addressing the emerging issues posed by the "information highway." The strategy featured legal reforms to address privacy and e-commerce, administrative reforms for the government online initiative, and connectivity…

  5. Canadian nuclear technology faces tough competition abroad

    International Nuclear Information System (INIS)

    Guard, R.F.W.


    The history of Canadian nuclear exports is related, starting with the CIRUS reactor and ending with the Romanian contract. The sale of the Cordoba reactor to Argentina is set in its historical perspective of continuing competition with German vendors. The Wolsung reactor is mentioned. The author considers that political rather than engineering problems hamper exports. (NDH)

  6. Retrieving Balloon Data in Flight (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...

  7. Effects of Age, Season, Gender and Urban-Rural Status on Time-Activity: Canadian Human Activity Pattern Survey 2 (CHAPS 2)


    Matz, Carlyn; Stieb, David; Davis, Karelyn; Egyed, Marika; Rose, Andreas; Chou, Benedito; Brion, Orly


    Estimation of population exposure is a main component of human health risk assessment for environmental contaminants. Population-level exposure assessments require time-activity pattern distributions in relation to microenvironments where people spend their time. Societal trends may have influenced time-activity patterns since previous Canadian data were collected 15 years ago. The Canadian Human Activity Pattern Survey 2 (CHAPS 2) was a national survey conducted in 2010–2011 to collect time-...

  8. F-8 SCW in flight (United States)


    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

  9. FMS flight plans in synthetic vision primary flight displays (United States)

    He, Gang; Feyereisen, Thea; Wyatt, Sandy


    This paper describes display concepts and flight tests evaluations of flight management system (FMS) flight plan integration into Honeywell's synthetic vision (SV) integrated primary flight display systems (IPFD). The prototype IPFD displays consist of primary flight symbology overlay with flight path information and flight director guidance cues on the SV external 3D background scenes. The IPFD conformal perspective-view background displays include terrain and obstacle scenes generated with Honeywell's enhanced ground proximity warning system (EGPWS) databases, runway displays generated with commercial FMS databases, and 3D flight plan information coming directly from on-board FMS systems. The flight plan display concepts include 3D waypoint representations with altitude constraints, terrain tracing curves and vectors based on airframe performances, and required navigation performance (RNP) data. The considerations for providing flight crews with intuitive views of complex approach procedures with minimal display clutter are discussed. The flight test data on-board Honeywell Citation Sovereign aircraft and pilot feedback are summarized with the emphasis on the test results involving approaches into terrainchallenged air fields with complex FMS approach procedures.

  10. Cognitive measures in the Canadian Longitudinal Study on Aging. (United States)

    Tuokko, Holly; Griffith, Lauren E; Simard, Martine; Taler, Vanessa


    We describe the implementation of cognitive measures within the Canadian Longitudinal Study on Aging (CLSA), a nationwide, epidemiological study of aging, and relate CLSA Tracking cohort data (n over 20,000) to previous studies using these measures. CLSA participants (aged 45-85, n over 50,000) provided demographic, social, physical/clinical, psychological, economic, and health service utilization information relevant to health and aging through telephone interviews (Tracking cohort, n over 20,000) or in-person (i.e. Comprehensive cohort, n over 30,000) in both official languages (i.e. English, French). Cognitive measures included: the Rey Auditory Verbal Learning Test (RAVLT) - Trial 1 and five-minute delayed recall; Animal Fluency (AF), the Mental Alternation Test (MAT) (both cohorts); Controlled Oral Word Association Test, Stroop Test, Prospective Memory Test, and Choice reaction times (Comprehensive Cohort). Performance on the RAVLT Trial 1 and AF were very similar to comparable groups studied previously; CLSA sample sizes were far larger. Within the CLSA Tracking cohort, main effects of age and language were observed for all cognitive measures except RAVLT delayed recall. Interaction effects (language × age) were observed for AF. This preliminary examination of the CLSA Tracking cognitive measures lends support to their use in large studies of aging. The CLSA has the potential to provide the 'best' comparison data for adult Canadians generated to date and may also be applicable more broadly. Future studies examining relations among the psychological, biological, health, lifestyle, and social measures within the CLSA will make unique contributions to understanding aging.

  11. ALOFT Flight Test Report (United States)


    conditions affecting automatic reversion to the Class II ( cafe MRI) feature. Table C-4 shows the MRI evaluation flights in the form of the MRI weapon...range data and delta values. 28 .^i^^i^i.^.^^,. *»■ " ,II"III"I1J "’ >*H*,II|1 ■ NWC TP 595A AIRCRAFT RANGE OF NWC The aircraft ranges of

  12. Neural Flight Control System (United States)

    Gundy-Burlet, Karen


    The Neural Flight Control System (NFCS) was developed to address the need for control systems that can be produced and tested at lower cost, easily adapted to prototype vehicles and for flight systems that can accommodate damaged control surfaces or changes to aircraft stability and control characteristics resulting from failures or accidents. NFCS utilizes on a neural network-based flight control algorithm which automatically compensates for a broad spectrum of unanticipated damage or failures of an aircraft in flight. Pilot stick and rudder pedal inputs are fed into a reference model which produces pitch, roll and yaw rate commands. The reference model frequencies and gains can be set to provide handling quality characteristics suitable for the aircraft of interest. The rate commands are used in conjunction with estimates of the aircraft s stability and control (S&C) derivatives by a simplified Dynamic Inverse controller to produce virtual elevator, aileron and rudder commands. These virtual surface deflection commands are optimally distributed across the aircraft s available control surfaces using linear programming theory. Sensor data is compared with the reference model rate commands to produce an error signal. A Proportional/Integral (PI) error controller "winds up" on the error signal and adds an augmented command to the reference model output with the effect of zeroing the error signal. In order to provide more consistent handling qualities for the pilot, neural networks learn the behavior of the error controller and add in the augmented command before the integrator winds up. In the case of damage sufficient to affect the handling qualities of the aircraft, an Adaptive Critic is utilized to reduce the reference model frequencies and gains to stay within a flyable envelope of the aircraft.

  13. Flight Crew Health Maintenance (United States)

    Gullett, C. C.


    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.

  14. Flight Attendant Fatigue (United States)


    approximately 1700 and dips at around 0500. Conversely, melatonin levels, which are inversely- related to alertness (Arendt, Deacon, English, Hampton...Seattle to Helsinki) on the salivary melatonin and cortisol levels in 35 female flight atten- dants has shown that the resynchronization rate of both summer and winter. Salivary melatonin and cortisol levels were measured at two-hour intervals for five days before, during, and after the 4

  15. Infrared Thermography Flight Experimentation (United States)

    Blanchard, Robert C.; Carter, Matthew L.; Kirsch, Michael


    Analysis was done on IR data collected by DFRC on May 8, 2002. This includes the generation of a movie to initially examine the IR flight data. The production of the movie was challenged by the volume of data that needed to be processed, namely 40,500 images with each image (256 x 252) containing over 264 million points (pixel depth 4096). It was also observed during the initial analysis that the RTD surface coating has a different emissivity than the surroundings. This fact added unexpected complexity in obtaining a correlation between RTD data and IR data. A scheme was devised to generate IR data near the RTD location which is not affected by the surface coating This scheme is valid as long as the surface temperature as measured does not change too much over a few pixel distances from the RTD location. After obtaining IR data near the RTD location, it is possible to make a direct comparison with the temperature as measured during the flight after adjusting for the camera s auto scaling. The IR data seems to correlate well to the flight temperature data at three of the four RID locations. The maximum count intensity occurs closely to the maximum temperature as measured during flight. At one location (RTD #3), there is poor correlation and this must be investigated before any further progress is possible. However, with successful comparisons at three locations, it seems there is great potential to be able to find a calibration curve for the data. Moreover, as such it will be possible to measure temperature directly from the IR data in the near future.

  16. Books average previous decade of economic misery. (United States)

    Bentley, R Alexander; Acerbi, Alberto; Ormerod, Paul; Lampos, Vasileios


    For the 20(th) century since the Depression, we find a strong correlation between a 'literary misery index' derived from English language books and a moving average of the previous decade of the annual U.S. economic misery index, which is the sum of inflation and unemployment rates. We find a peak in the goodness of fit at 11 years for the moving average. The fit between the two misery indices holds when using different techniques to measure the literary misery index, and this fit is significantly better than other possible correlations with different emotion indices. To check the robustness of the results, we also analysed books written in German language and obtained very similar correlations with the German economic misery index. The results suggest that millions of books published every year average the authors' shared economic experiences over the past decade.

  17. Induced vaginal birth after previous caesarean section

    Directory of Open Access Journals (Sweden)

    Akylbek Tussupkaliyev


    Full Text Available Introduction The rate of operative birth by Caesarean section is constantly rising. In Kazakhstan, it reaches 27 per cent. Research data confirm that the percentage of successful vaginal births after previous Caesarean section is 50–70 per cent. How safe the induction of vaginal birth after Caesarean (VBAC remains unclear. Methodology The studied techniques of labour induction were amniotomy of the foetal bladder with the vulsellum ramus, intravaginal administration of E1 prostaglandin (Misoprostol, and intravenous infusion of Oxytocin-Richter. The assessment of rediness of parturient canals was conducted by Bishop’s score; the labour course was assessed by a partogram. The effectiveness of labour induction techniques was assessed by the number of administered doses, the time of onset of regular labour, the course of labour and the postpartum period and the presence of complications, and the course of the early neonatal period, which implied the assessment of the child’s condition, described in the newborn development record. The foetus was assessed by medical ultrasound and antenatal and intranatal cardiotocography (CTG. Obtained results were analysed with SAS statistical processing software. Results The overall percentage of successful births with intravaginal administration of Misoprostol was 93 per cent (83 of cases. This percentage was higher than in the amniotomy group (relative risk (RR 11.7 and was similar to the oxytocin group (RR 0.83. Amniotomy was effective in 54 per cent (39 of cases, when it induced regular labour. Intravenous oxytocin infusion was effective in 94 per cent (89 of cases. This percentage was higher than that with amniotomy (RR 12.5. Conclusions The success of vaginal delivery after previous Caesarean section can be achieved in almost 70 per cent of cases. At that, labour induction does not decrease this indicator and remains within population boundaries.

  18. The aerodynamics of flight in an insect flight-mill. (United States)

    Ribak, Gal; Barkan, Shay; Soroker, Victoria


    Predicting the dispersal of pest insects is important for pest management schemes. Flight-mills provide a simple way to evaluate the flight potential of insects, but there are several complications in relating tethered-flight to natural flight. We used high-speed video to evaluate the effect of flight-mill design on flight of the red palm weevil (Rynchophorous ferruginneus) in four variants of a flight-mill. Two variants had the rotating radial arm pivoted on the main shaft of the rotation axis, allowing freedom to elevate the arm as the insect applied lift force. Two other variants had the pivot point fixed, restricting the radial arm to horizontal motion. Beetles were tethered with their lateral axis horizontal or rotated by 40°, as in a banked turn. Flight-mill type did not affect flight speed or wing-beat frequency, but did affect flapping kinematics. The wingtip internal to the circular trajectory was always moved faster relative to air, suggesting that the beetles were attempting to steer in the opposite direction to the curved trajectory forced by the flight-mill. However, banked beetles had lower flapping asymmetry, generated higher lift forces and lost more of their body mass per time and distance flown during prolonged flight compared to beetles flying level. The results indicate, that flapping asymmetry and low lift can be rectified by tethering the beetle in a banked orientation, but the flight still does not correspond directly to free-flight. This should be recognized and taken into account when designing flight-mills and interoperating their data.

  19. Clinical expression of developmental coordination disorder in a large Canadian family


    Gaines, Robin; Collins, David; Boycott, Kym; Missiuna, Cheryl; DeLaat, Denise; Soucie, Helen


    Previous studies of the phenotype of developmental coordination disorder (DCD) have largely concentrated on population-based samples. The present study reports on an in-depth examination of a large Canadian family with eight children, after three children who were suspected to have DCD were referred for evaluation. Subsequently, five of the six children whose motor impairments could be measured, and the mother, met the diagnostic criteria for DCD as per the American Psychiatric Association’s ...

  20. The leisure style of Canadian rural recreation participants: An analysis based on three different rural leisure settings (United States)

    Paul Heintzman; Don. Dawson


    This study was a secondary analysis of data from a previous study of 248 Canadians on four dimensions of leisure style: time use, leisure setting, leisure activity participation, and leisure motivation. Correlation analyses were conducted to determine if frequency of participation in three rural leisure settings were related to other leisure style dimensions.

  1. 14 CFR 91.109 - Flight instruction; Simulated instrument flight and certain flight tests. (United States)


    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Flight instruction; Simulated instrument flight and certain flight tests. 91.109 Section 91.109 Aeronautics and Space FEDERAL AVIATION... throwover control wheel in place of fixed, dual controls of the elevator and ailerons when— (1) The...

  2. Neural Network Analysis of Pilot Landing Control in Real Flight (United States)

    Mori, Ryota; Suzuki, Shinji; Masui, Kazuya; Tomita, Hiroshi

    A methodology for analysis of a pilots' landing control at the visual approach has been developed using a neural network modeling. While our previous study analyzed flight simulator operations, this paper describes the analysis of a real flight landing case. An experimental method which utilizes image processing of recorded video data is developed to obtain necessary data such as time histories of visual cues and control inputs. The effectiveness of this proposed method is confirmed by comparing values and analysis results from the video data with results obtained using GPS/INS data. It is expected that these methods can be used to reveal the characteristic of pilot control in real flight operation.

  3. Exploring Canadian Echinoderm Diversity through DNA Barcodes. (United States)

    Layton, Kara K S; Corstorphine, Erin A; Hebert, Paul D N


    DNA barcoding has proven an effective tool for species identification in varied groups of marine invertebrates including crustaceans, molluscs, polychaetes and echinoderms. In this study, we further validate its utility by analyzing almost half of the 300 species of Echinodermata known from Canadian waters. COI sequences from 999 specimens were assigned to 145 BINs. In most cases, species discrimination was straightforward due to the large difference (25-fold) between mean intra- (0.48%) and inter- (12.0%) specific divergence. Six species were flagged for further taxonomic investigation because specimens assigned to them fell into two or three discrete sequence clusters. The potential influence of larval dispersal capacity and glacial events on patterns of genetic diversity is discussed for 19 trans-oceanic species. Although additional research is needed to clarify biogeographic patterns and resolve taxonomic questions, this study represents an important step in the assembly of a DNA barcode library for all Canadian echinoderms, a valuable resource for future biosurveillance programs.

  4. Youth De-Radicalization: A Canadian Framework

    Directory of Open Access Journals (Sweden)

    Hafal (Haval Ahmad


    Full Text Available Youth radicalization leading to violence has become a growing fear among Canadians, as terrorist attacks are carried out in Western states. Although Canada has suffered relatively fewer acts of violence, this fear has intensified and a de-radicalization strategy is needed in the Canadian context. In a qualitative case study methodology, interviews were conducted with school counsellors, religious leaders, and academics to explore solutions to youth radicalization. Youth de-radicalization approaches from the United Kingdom were analyzed and found that community-based initiatives were missing from programming. Social identity theory is used to explain that youth join radicalized groups to feel a sense of belonging and have to be provided an alternative and moderate group identity to de-radicalize. This study found youth de-radicalization in Canada is best served through a community collaboration approach.

  5. Canadian petroleum history bibliography. Release update

    Energy Technology Data Exchange (ETDEWEB)

    Cass, D.


    The petroleum history bibliography was created over several years as a record dedicated to preserving the history of the Canadian petroleum industry. It comprises a list of more than 5000 publications, including books, theses, films, audio tapes, published articles and stories of the many companies that have come and gone. It aims to include all publications and audio visual products from the Social Sciences and Humanities on company histories, biographies, autobiographies, fiction, poetry and humour. An author index is included. Most government documents are excluded as they are accessible through Library and Archives Canada. This bibliography is an ongoing piece of work, and welcomes any additions relating to the study and preservation of Canadian petroleum industry history.

  6. International uranium production. An eastern Canadian perspective

    International Nuclear Information System (INIS)

    Albino, G.R.


    The Eastern Canadian perspective on uranium production is based on 30 years of continuous mining at Elliot Lake and on the experience of selling uranium over the same time period, mainly to export markets. In Ontario the orebodies are basically contiguous, being part of the same large formation. All the mining is underground. Ore grades are low, but economic extraction is improved by continuity and uniformity of grades, stable ground conditions, and the ability to mine and mill on a large scale. Mining is being carried out by two companies, Denison and Rio Algom. It is unlikely that mine capacity will be increased. Government policies have significant effects on the Eastern Canadian uranium industry in particular, as to U.S. import policies. (L.L.)

  7. The Canadian Fusion Fuels Technology Project

    International Nuclear Information System (INIS)

    Dautovich, D.P.; Gierszewski, P.J.; Wong, K.Y.; Stasko, R.R.; Burnham, C.D.


    The Canadian Fusion Fuels Technology Project (CFFTP) is a national project whose aim is to develop capability in tritium and robotics technologies for application to international fusion development programs. Activities over the first five years have brought substantial interaction with the world's leading projects such as Tokamak Fusion Test Reactor (TFTR), the Joint European Torus (JET), and the Next European Torus (NET), Canadian R and D and engineering services, and hardware are in demand as these major projects prepare for tritium operation leading to the demonstration of energy breakeven around 1990. Global planning is underway for the next generation ignition experiment. It is anticipated this will provide increased opportunity for CFFTP and its contractors among industry, universities and governmental laboratories

  8. Canadian heavy oil supply and demand

    International Nuclear Information System (INIS)

    Eynon, G.


    The wealth of business opportunities presented by Canada's vast heavy oil and bitumen resources in the face of declining reserves of light and medium crude were discussed. It was argued that Western Canadian producers, as a group, appear to lack the appreciation of the impacts of midstream and downstream sectors of the heavy oil business. The vertical integration of the heavy oil industry in Venezuela was cited as an example of the direction that Canadian producers should travel to achieve the control over their own destiny through ownership of the means of transportation, refining and marketing that is commensurate with their growing importance in the energy sector. The opportunities are great, but long-term success will require a sophisticated and integrated business approach. 4 figs

  9. Asbestos in drinking water: a Canadian view

    Energy Technology Data Exchange (ETDEWEB)

    Toft, P.; Meek, M.E.


    Because of the widespread occurrence of chrysotile asbestos in drinking water supplies in Canada, public health professionals have been faced with evaluating the potential hazards associated with the ingestion of asbestos in food and drinking water. The results of available Canadian monitoring and epidemiologic studies of asbestos in drinking water are reviewed and discussed in light of other published work. The Canadian studies provide no consistent, convincing evidence of increased cancer risks attributable to the ingestion of drinking water contaminated by asbestos, even though the observed asbestos concentrations were relatively high in several communities. Only one study, conducted in the San Francisco Bay Area, has shown evidence of increased cancer incidence associated with the ingestion of asbestos in drinking water. 6 references.

  10. Canadian Clinical Practice Guidelines for Rosacea. (United States)

    Asai, Yuka; Tan, Jerry; Baibergenova, Akerke; Barankin, Benjamin; Cochrane, Chris L; Humphrey, Shannon; Lynde, Charles W; Marcoux, Danielle; Poulin, Yves; Rivers, Jason K; Sapijaszko, Mariusz; Sibbald, R Gary; Toole, John; Ulmer, Marcie; Zip, Catherine


    Rosacea is a chronic facial inflammatory dermatosis characterized by background facial erythema and flushing and may be accompanied by inflammatory papules and pustules, cutaneous fibrosis and hyperplasia known as phyma, and ocular involvement. These features can have adverse impact on quality of life, and ocular involvement can lead to visual dysfunction. The past decade has witnessed increased research into pathogenic pathways involved in rosacea and the introduction of novel treatment innovations. The objective of these guidelines is to offer evidence-based recommendations to assist Canadian health care providers in the diagnosis and management of rosacea. These guidelines were developed by an expert panel of Canadian dermatologists taking into consideration the balance of desirable and undesirable outcomes, the quality of supporting evidence, the values and preferences of patients, and the costs of treatment. The 2015 Cochrane review "Interventions in Rosacea" was used as a source of clinical trial evidence on which to base the recommendations. © The Author(s) 2016.

  11. Canadian oil and gas survey : 1997

    International Nuclear Information System (INIS)

    Roberge, R.B.


    An outlook of the Canadian Petroleum Industry, financial and operating statistics of the top 100 Canadian public oil and gas companies and 15 energy income trusts, were summarized for the fiscal year ending in 1996. In general, 1996 was a good year for the industry. Greater industry financing resulted in increased drilling activity and good stock market returns for investors. However, strong commodity prices also resulted in record levels of hedging activity, which meant lost revenues for the industry. The top 100 companies recorded losses of about $800 million in 1996, largely on crude oil hedges. The fact that volumes hedged forward to 1997 are down from 1996 indicate that many companies are rethinking their commitment to risk management. Details of crude oil and natural gas prices and production levels during 1996 were provided. A list of significant corporate mergers and acquisitions during the year under review rounded out the presentation

  12. Canadian Petroleum Products Inst. annual report, 1992

    International Nuclear Information System (INIS)


    The Canadian Petroleum Products Institute (CPPI) was created in 1989 as a nonprofit association of Canadian refiners and marketers of petroleum products. The objective of the CPPI is to serve and represent the refining and marketing sectors of the petroleum industry with respect to environment, health and safety, and business issues. CPPI conducts research to develop industry policy on a wide variety of environmental, health, safety and business issues. Key activities include: developing guidelines for the safe handling of petroleum products, establishing environmental policies, managing a national environmental protection network of over 100 centers across Canada; providing information on industry activities to the public; and developing working partnerships with government and public interest groups to address issues of common concern. An overview is provided of industry operations, economics and financial performance, and environmental protection and safety. Lists of CPPI publications, awards, standing committees, and officers are also included. 9 figs

  13. Survey of Canadian hospitals radiation emergency plans

    International Nuclear Information System (INIS)

    Davis, C.


    This report documents the findings of a survey of Canadian hospitals conducted by Social Data Research Ltd. during the Spring and Summer, 1995. The main objective of the survey was to determine the state of readiness of Canadian hospitals in respect of radiation emergency planning. In addition, the AECB was interested in knowing the extent to which a report by the Group of Medical Advisors, 'GMA-3: Guidelines on Hospital Emergency Plans for the Management of Minor Radiation Accidents', which was sponsored and distributed in 1993, was received and was useful to hospital administrators and emergency personnel. A self-administered questionnaire was distributed to 598 acute care hospitals, and 274 responses were received. The main conclusion of this study is that, with the exception of a few large institutions, hospitals generally do not have specific action plans to handle minor radiation accidents. (author)

  14. Committing Canadian sociology: developing a Canadian sociology and a sociology of Canada. (United States)

    Matthews, Ralph


    This paper is a slightly revised version of the author's "Outstanding Career Award Lecture" presented at the Annual Meeting of the Canadian Sociological Association in Victoria, British Columbia on June 6, 2013. The paper distinguishes between Canadian Sociology and the Sociology of Canada. The former involves the explanatory stance that one takes to understanding Canada. The latter addresses the significant social dimensions that underlie Canadian social organization, culture, and behavior. I make a case for a Canadian Sociology that focuses on the unique features of Canadian society rather than adopting a comparative perspective. I also argue that there is a continuing need within the Sociology of Canada to address the issues of staples development. However, I argue that "new" staples analysis must have a directional change from that of the past, in that social processes now largely determine the pattern of staples development. Moreover, new staples analysis must include issues that were never part of earlier staples analysis, such as issues of environmental impacts and of staples depletion under conditions, such as climate change. The paper concludes by analyzing four factors that provide the dominant social contexts for analyzing modern staples development: (1) the rise of neoliberal government, (2) the implementation of globalization and its social consequences, (3) the assumption of aboriginal rights and entitlement, and (4) the rise of environmentalism. These factors were generally not considered in earlier staples approaches. They are critical to understanding the role of staples development and its impact on Canada in the present time.

  15. Globalization, health, and the future Canadian metropolis.


    Schrecker, Ted


    This chapter represents a preliminary effort to understand the health implications of transnsational economic integration (globalization) for population health in Canadian metropolitan areas, and to inform the development of policy responses and strategies of resistance. Special emphasis is placed on health equity as it is affected by social determinants of health. I first provide a stylized description of the rationale for concentrating on major metropolitan areas, rather than on...

  16. Canadians trying to join US transmission groups

    International Nuclear Information System (INIS)

    Bright, David; Salaff, Stephen.


    Various competition problems faced by Canadian utilities and attempts to solve them, were described. E.g. B.C. Hydro and its electricity trade subsidiary Powerex have moved to become members of the Western Regional Transmission Association (WRTA), an association of about 40 utilities which serve part of the western United States. Through the WRTA, Powerex seeks fair terms to ensure its access to the U.S. market. Membership allows fast dispute resolution and enhances sales to California and other western states. Concern was expressed by the U.S Dept.of Energy about the lack of reciprocity.In the year ending March 1994, Powerex exported 2,600 gigawatt-hours of electricity, over 90% to the U.S. This was a l ow water year for hydroelectric-based BC Hydro, in which surplus energy available for export was only about half of what is usually available. Ontario Hydro and other provincially owned utilities were said to be challenged by U.S. industry deregulation and open transmission policies. If Canadian utilities fail to initiate structural changes leading to open access policies, their economic competitiveness may well decline. If on the other hand Canadian utilities decided to adopt open access policies, they would need to shed their monopolistic practices and accelerate restructuring in the face of wholesale competition. They could face direct retail competition in their currently captive provincial markets from U.S. and alternative Canadian suppliers. In an open competition scenario up to 20% of Ontario Hydro's domestic sales were said to be in danger of being displaced by imports from New York and Michigan

  17. Guide to Canadian Aerospace Related Industries, (United States)


    Aircraft, DeHavilland, Grumman Aircraft, and Canadian Digital Radar Data Processing - Contract with Fundacao Vickers Ltd. Educacional de Bauru, Brazil...surveyed by 6939 East Hastings St Avco Lycoming, Bendix Energy Control, Cleveland Pneuma- Burnaby, British Columbia, Canada V5C 5P3 tic , General...backscatter, magne- directly or through its subsidiaries and associates in the manu- tic , and eddy current thickness testing; radiography; facture of electrical

  18. Asbestos in drinking water: a Canadian view.


    Toft, P; Meek, M E


    For several years now, public health professionals have been faced with evaluating the potential hazards associated with the ingestion of asbestos in food and drinking water. In Canada, this is a subject of particular concern, because of the widespread occurrence of chrysotile asbestos in drinking water supplies. The results of available Canadian monitoring and epidemiologic studies of asbestos in drinking water are reviewed and discussed in light of other published work. It is concluded that...

  19. Roundtable Discussion on the Canadian Economy


    McArthur, Doug; Ivanova, Iglika; Dobrzanski, Chris; Garrosino, Sandy


    Since the 2008 global financial earthquake, the world economy has continued to be turbulent.

The roundtable discussion focussed on the Canadian economy within the 2012 global environment, but with a specific Vancouver and BC based perspective. Each of the panellists, from their own vantage point, talked about concerns with the economy, opportunities in the mid and long term for BC, and public policy ideas that they would put forward to improve the BC economy. The discussion was  followe...

  20. Tornado Mitigation in the Canadian Prairie Region


    Durage, Samanthi, Prof.


    Tornadoes are a destructive form of the extreme weather associated with thunderstorms. Canada gets more tornadoes than any other country with the exception of the US. This paper presents some results of a study on tornado mitigation in the Canadian Prairie region. Initially, a regression-based analysis of the Prairie tornado database was conducted, and the trend for the number of tornadoes reported in each year is discussed in this paper. The detection, warning, communication, and evacuation ...

  1. Waste management in Canadian nuclear programs

    International Nuclear Information System (INIS)

    Dyne, P.J.


    The report describes the wide-ranging program of engineering developments and applications to provide the Canadian nuclear industry with the knowledge and expertise it needs to conduct its waste management program. The need for interim dry storage of spent fuel, and the storage and ultimate disposal of waste from fuel reprocessing are examined. The role of geologic storage in AECL's current waste management program is also considered. (R.A.)

  2. Canadian Multiculturalism, Same as it ever Was?

    Directory of Open Access Journals (Sweden)

    Kathleen Hoyos


    Full Text Available After the Second World War ended, Canada was no longer mainly composed of its two dominant ethnocultural groups, French and English, but rather constituted by polyethnicity; meaning, Canadian culture was made up of many different ethnic groups. Since then, Canada has actively embraced multiculturalism and on 12 July 1988, the House of Commons passed Bill C-93, ‘An Act for the preservation and enhancement of multiculturalism in Canada’. The Canadian multicultural experience has been much portrayed as a celebration of ethnicity where different cultural groups share their customs and learn from each other. However, it is recently being rumoured that the multiculturalism hype is not all it is cut out to be and segregates communities rather than integrate. According to Canadian authors Keith Banting and Will Kymlicka, “in much of the world and particularly in Europe, there is a widespread perception that multiculturalism has failed” (44. In this paper, I examine some recent common issues of concern, especially, racism and discrimination, through the literary expression of Canadian playwrights and writers such as George F. Walker, Cecil Foster, and Mordecai Richler. These writers are not meant to represent any ethnic group as a whole, but rather try to project a general feeling about the nation in individual ways. I will finally explore the idea of how perhaps multiculturalism in Canada is evolving into another state since migratory patterns and the social circumstances that Canada is facing in the 21st century have changed. Today, the idea of celebrating different ethnicities and customs is no longer as important as celebrating the transcultural or “transnational” aspects of relations between individuals and groups of immigrants.

  3. International surgery: definition, principles and Canadian practice


    Lett, Ronald


    This article is dedicated to the Canadian international surgeon, Norman Bethune (1890–1939). International surgery is defined as a humanitarian branch of medicine concerned with the treatment of bodily injuries or disorders by incision or manipulations, emphasizing cooperation and understanding among nations and involving education, research, development and advocacy. In this article I review the colonial past, the dark ages following the Declaration of Alma-Ata, the progress made and the pre...

  4. Diabetic Retinopathy in Native and Nonnative Canadians


    Ross, Stuart A.; McKenna, Anne; Mozejko, Sheila; Fick, Gordon H.


    High prevalence rates of type 2 diabetes are being observed in native Canadian communities. It is believed that native populations have a higher prevalence rate of vascular complications than nonnatives. The Southern Alberta Study of Diabetic Retinopathy (DR) examined the prevalence and incidence of DR and associated metabolic abnormalities in native and nonnative subjects. Prevalence rates of DR in type 2 diabetic native and nonnative subjects were identical, with a prevalence rate of 40%. N...

  5. Science Traverses in the Canadian High Arctic (United States)

    Williamson, Marie-Claude


    The presentation is divided into three parts. Part I is an overview of early expeditions to the High Arctic, and their political consequences at the time. The focus then shifts to the Geological Survey of Canada s mapping program in the North (Operation Franklin), and to the Polar Continental Shelf Project (PCSP), a unique organization that resides within the Government of Canada s Department of Natural Resources, and supports mapping projects and science investigations. PCSP is highlighted throughout the presentation so a description of mandate, budgets, and support infrastructure is warranted. In Part II, the presenter describes the planning required in advance of scientific deployments carried out in the Canadian High Arctic from the perspective of government and university investigators. Field operations and challenges encountered while leading arctic field teams in fly camps are also described in this part of the presentation, with particular emphasis on the 2008 field season. Part III is a summary of preliminary results obtained from a Polar Survey questionnaire sent out to members of the Arctic research community in anticipation of the workshop. The last part of the talk is an update on the analog program at the Canadian Space Agency, specifically, the Canadian Analog Research Network (CARN) and current activities related to Analog missions, 2009-2010.

  6. Integrative practices of Canadian oncology health professionals. (United States)

    Brazier, A S A; Balneaves, L G; Seely, D; Stephen, J E; Suryaprakash, N; Taylor-Brown, J W


    Cancer patients are increasingly known to use complementary medicine (CAM) during conventional treatment, but data are limited on how Canadian oncology health professionals attempt to assist patients with their use of cam in the context of conventional cancer care. As part of a larger qualitative study assessing the perceptions of Canadian oncology health professionals regarding integrated breast cancer care, we undertook an exploration of current integrative practices of oncology health professionals. Using an interpretive description research design and a purposive sampling, we conducted a series of in-depth qualitative interviews with various oncology health professionals recruited from provincial cancer agencies, hospitals, integrative clinics, and private practice settings in four Canadian cities: Vancouver, Winnipeg, Montreal, and Halifax. A total of 16 oncology health professionals participated, including medical and radiation oncologists, nurses, and pharmacists. Findings highlighted two main strategies used by oncology health professionals to create a more integrative approach for cancer patients: acting as an integrative care guide, and collaborating with other health professionals. Although few clear standards of practice or guidance material were in place within their organizational settings, health professionals discussed some integrative roles that they had adopted, depending on interest, knowledge, and skills, in supporting patients with cam decisions. Given that cancer patients report that they want to be able to confer with their conventional health professionals, particularly their oncologists, about their cam use, health professionals who elect to adopt integrative practices are likely offering patients much-welcomed support.

  7. Canadian oil and gas survey 1998

    International Nuclear Information System (INIS)

    Roberge, R.B.


    The year 1997 brought record levels of financing for the Canadian oil and gas industry which led to record levels of capital spending and unprecedented merger and acquisition activity. Production records were achieved, but soft commodity prices in the fourth quarter resulted in a significant downturn in the equity markets. El Nino reduced demand for natural gas and heating oil, resulting in increased storage levels for both commodities. Record drilling and capital spending fueled the Canadian oilfield service industry as total market capitalization rose to $10 billion. As for the 1998 outlook, the industry has turned to natural gas as the favoured commodity, as indicated by the conclusion of the Alliance pipeline hearings and the Nova/TCPL merger. This survey presents a review of crude oil and natural gas production, prices, and capital spending for development and exploratory wells, and the financial and operating results for fiscal year 1997 of selected oil and gas companies and income trusts. All listed companies are Canadian public companies, or publicly traded income trusts, traded on one of the country's four major stock exchanges. They are ranked according to gross oil and gas production revenue only (before royalties). Syncrude and oil sands production is also included. The remaining data in the financial statistics tables includes all business segments of each company included. The survey excluded companies that were wholly-owned subsidiaries, divisions or U.S. subsidiaries and private companies. tabs., figs

  8. Flight Test of an Intelligent Flight-Control System (United States)

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


    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

  9. Rocket Flight Path

    Directory of Open Access Journals (Sweden)

    Jamie Waters


    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.

  10. Flight to America

    Directory of Open Access Journals (Sweden)

    Güneli Gün


    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.

  11. Flight Mechanics Project (United States)

    Steck, Daniel


    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.

  12. Too few, too weak: conflict of interest policies at Canadian medical schools.

    Directory of Open Access Journals (Sweden)

    Adrienne Shnier

    Full Text Available INTRODUCTION: The education of medical students should be based on the best clinical information available, rather than on commercial interests. Previous research looking at university-wide conflict of interest (COI policies used in Canadian medical schools has shown very poor regulation. An analysis of COI policies was undertaken to document the current policy environment in all 17 Canadian medical schools. METHODS: A web search was used to initially locate COI policies supplemented by additional information from the deans of each medical school. Strength of policies was rated on a scale of 0 to 2 in 12 categories and also on the presence of enforcement measures. For each school, we report scores for all 12 categories, enforcement measures, and summative scores. RESULTS: COI policies received summative scores that ranged from 0 to 19, with 0 the lowest possible score obtainable and 24 the maximum. The highest mean scores per category were for disclosure and ghostwriting (0.9 and for gifts and scholarships (0.8. DISCUSSION: This study provides the first comprehensive evaluation of all 17 Canadian medical school-specific COI policies. Our results suggest that the COI policy environment at Canadian medical schools is generally permissive. Policy development is a dynamic process. We therefore encourage all Canadian medical schools to develop restrictive COI policies to ensure that their medical students are educated based on the best clinical evidence available, free of industry biases and COI relationships that may influence the future medical thinking and prescribing practices of medical students in Canada once they graduate.

  13. Neutron radiography of aircraft composite flight control surfaces

    International Nuclear Information System (INIS)

    Lewis, W.J.; Bennett, L.G.I.; Chalovich, T.R.; Francescone, O.


    A small (20 kWth), safe, pool-type nuclear research reactor called the SLOWPOKE-2 is located at the Royal Military College of Canada (RMC). The reactor was originally installed for teaching, training, research and semi-routine analysis, specifically, neutron activation analysis. It was envisioned that the neutrons from the SLOWPOKE-2 could also be used for neutron radiography, and so a research program was initiated to develop this technology. Over a period of approximately 15 years, and through a series of successive modifications, a neutron radiography system (NRS) was developed. Once completed, several applications of the technology have been demonstrated, including the nondestructive examination of the composite flight control surfaces from the Canadian Air Force's primary jet fighter, the CF18 Hornet aircraft. An initial trial was setup to investigate the flight control surfaces of 3 aircraft, to determine the parameters for a final licensed system, and to compare the results to other nondestructive methods. Over 500 neutron radiographs were made for these first 3 aircraft, and moisture and corrosion were discovered in the honeycomb structure and hydration was found in the composite and adhesive layers. In comparison with other NDT methods, neutron radiography was the only method that could detect the small areas of corrosion and moisture entrapment. However, before examining an additional 7 aircraft, the recommended modifications to the NRS were undertaken. These modifications were necessary to accommodate the larger flight control surfaces safely by incorporating flexible conformable shielding. As well, to expedite inspections so that all flight control surfaces from one aircraft could be completed in less than two weeks, there was a need to decrease the exposure time by both faster film/conversion screen combinations and by incorporating the capability of near realtime, digital radioscopy. Finally, as there are no inspection specific image quality

  14. Injuries at a Canadian National Taekwondo Championships: a prospective study

    Directory of Open Access Journals (Sweden)

    Pieter Willy


    Full Text Available Abstract Background The purpose of this prospective study was to assess the injury rates in male and female adult Canadian Taekwondo athletes relative to total number of injuries, type and body part injured. Methods Subjects (219 males, 99 females participated in the 1997 Canadian National Taekwondo Championships in Toronto, Canada. Injuries were recorded on an injury form to documents any injury seen and treatment provided by the health care team. These data were later used for this study. The injury form describes the athlete and nature, site, severity and mechanism of the injury. Results The overall rate of injuries was 62.9/1,000 athlete-exposures (A-E. The males (79.9/1,000 A-E sustained significantly more injuries than the females (25.3/1,000 A-E. The lower extremities were the most commonly injured body region in the men (32.0 /1,000 A-E, followed by the head and neck (18.3/1,000 A-E. Injuries to the spine (neck, upper back, low back and coccyx were the third most often injured body region in males (13.8/1,000 A-E. All injuries to the women were sustained to the lower extremities. The most common type of injury in women was the contusion (15.2/1,000 A-E. However, men's most common type of injury was the sprain (22.8/1,000 A-E followed by joint dysfunction (13.7/1,000A-E. Concussions were only reported in males (6.9/1,000 A-E. Compared to international counterparts, the Canadian men and women recorded lower total injury rates. However, the males incurred more cerebral concussions than their American colleagues (4.7/1,000 A-E. Conclusions Similar to what was found in previous studies, the current investigation seems to suggest that areas of particular concern for preventive measures involve the head and neck as well as the lower extremities. This is the first paper to identify spinal joint dysfunction.

  15. XML Flight/Ground Data Dictionary Management (United States)

    Wright, Jesse; Wiklow, Colette


    A computer program generates Extensible Markup Language (XML) files that effect coupling between the command- and telemetry-handling software running aboard a spacecraft and the corresponding software running in ground support systems. The XML files are produced by use of information from the flight software and from flight-system engineering. The XML files are converted to legacy ground-system data formats for command and telemetry, transformed into Web-based and printed documentation, and used in developing new ground-system data-handling software. Previously, the information about telemetry and command was scattered in various paper documents that were not synchronized. The process of searching and reading the documents was time-consuming and introduced errors. In contrast, the XML files contain all of the information in one place. XML structures can evolve in such a manner as to enable the addition, to the XML files, of the metadata necessary to track the changes and the associated documentation. The use of this software has reduced the extent of manual operations in developing a ground data system, thereby saving considerable time and removing errors that previously arose in the translation and transcription of software information from the flight to the ground system.

  16. The Canadian elder standard - pricing the cost of basic needs for the Canadian elderly. (United States)

    MacDonald, Bonnie-Jeanne; Andrews, Doug; Brown, Robert L


    We determined the after-tax income required to finance basic needs for Canadian elders living with different circumstances in terms of age, gender, city of residence, household size, homeowner or renter status, means of transportation, and health status. Using 2001 as our base year, we priced the typical expenses for food, shelter, medical, transportation, miscellaneous basic living items and home-based long-term care for elders living in five Canadian cities. This is the first Canadian study of basic living expenses tailored to elders instead of adults in general, prepared on an absolute rather than a relative basis. We also accounted for an individual's unique life circumstances and established the varying effect that they have on the cost of basic expenses, particularly for home care. We found that the maximum Guaranteed Income Supplement and Old Age Security benefit did not meet the cost of basic needs for an elder living in poor circumstances.

  17. The task ahead: a Canadian federal regulator's perspective

    International Nuclear Information System (INIS)

    Brooks, F.F.


    The author discusses the role of the Canadian National Energy Board (NEB) in any possible future exports of nuclear-generated electric power. The federal government has already indicated that it would support New Brunswick Power in its efforts to develop a second reactor at Point Lepreau dedicated to power export, and that similar support would be extended to other utilities. The NEB Act requires that a proposed energy export be surplus to reasonable foreseeable Canadian requirements and that the price be just and reasonable. The output of a plant built for power exports would be surplus to Canadian needs, but the problem comes in determining if producing that surplus would result in a net benefit to Canadians. Negotiating sales contracts will not be easy; purchase of Canadian firm power is only one option among others available to US utilities. However, the Canadian policy framework exists and the NEB is ready to receive applications for export licences

  18. Political Ideology and Economic Freedom across Canadian Provinces

    DEFF Research Database (Denmark)

    Bjørnskov, Christian; Potrafke, Niklas

    This paper examines how political ideology influenced economic freedom in the Canadian provinces. We analyze the dataset of economic freedom indicators compiled by the Fraser Institute in 10 Canadian provinces over the 1981-2005 period and introduce two different indices of political ideology...... leftist and rightwing governments concerning the role of government in the economy and (2) indicates that ideological polarization concerns governments but less parliamentary fractions in the Canadian provinces. ...

  19. Installation of the Canadian Muon Cargo Inspection System at CRL (United States)


    Installation of the Canadian Muon Cargo Inspection System at CRL Prepared by: Guy Jonkmans Atomic Energy of Canada Limited Chalk River ON...INSTALLATION OF THE CANADIAN MUON CARGO INSPECTION SYSTEM AT CRL 153-30100-REPT-001 Revision 0 2013/02/19 UNRESTRICTED 2013/02/19 ILLIMITÉ 153...30100-REPT-001 2013/02/19 Report, General Installation of the Canadian Muon Cargo Inspection System at CRL Research and Development 153-30100

  20. Canadian capital spending to slip 4.7% in 1993

    International Nuclear Information System (INIS)



    Total capital and exploration spending by the Canadian petroleum industry is estimated at $6.579 billion in 1993, a drop of 4.7% from estimated 1992 outlays. Last year Canadian capital spending of $6.9 billion represented a drop of 8.9% from 1991 outlays, according to an Oil and Gas Journal survey. All survey related spending estimates in this paper are in U.S. dollars. All individual company spending estimates are in Canadian dollars

  1. Obstructive Sleep Apnea and Driving: A Canadian Thoracic Society and Canadian Sleep Society Position Paper

    Directory of Open Access Journals (Sweden)

    Najib Ayas


    Full Text Available Individuals with obstructive sleep apnea (OSA experience sleep fragmentation and poor sleep quality that results in daytime sleepiness, which impairs performance during driving and leads to an increased risk for collisions. Not surprisingly, observational studies have shown that patients with OSA experience a two- to 10-fold higher risk for collision compared with healthy controls. Although treatment would clearly mitigate these risks, there is no current Canadian position on driving and OSA. This article, the first Canadian position statement addressing the issue, provides an overview of provincial regulations and proposes recommendations with regard to driving in patients with OSA.

  2. Cross-language acoustic similarity predicts perceptual assimilation of Canadian English and Canadian French vowels. (United States)

    Escudero, Paola; Vasiliev, Polina


    Monolingual Peruvian Spanish listeners identified natural tokens of the Canadian French (CF) and Canadian English (CE) /ɛ/ and /æ/, produced in five consonantal contexts. The results demonstrate that while the CF vowels were mapped to two different native vowels, /e/ and /a/, in all consonantal contexts, the CE contrast was mapped to the single native vowel /a/ in four out of five contexts. Linear discriminant analysis revealed that acoustic similarity between native and target language vowels was a very good predictor of context-specific perceptual mappings. Predictions are made for Spanish learners of the /ɛ/-/æ/ contrast in CF and CE.

  3. Cervical artery dissection following a turbulent flight.

    LENUS (Irish Health Repository)

    Quinn, Colin


    BACKGROUND: Cervical artery dissection is a common cause of stroke in young patients without vascular risk factors and may affect the carotid or vertebral arteries. The risk of spontaneous dissection is higher in those with genetic predisposing factors while other cases may be precipitated by an event involving head or neck movement or associated with direct neck trauma. CASE REPORT: We present the case of a previously well young woman with a history of migraine who developed internal carotid artery dissection following a turbulent short-haul commercial flight while restrained using a seatbelt. DISCUSSION: We propose that repetitive flexion-hyperextension neck movements encountered during the flight were the most likely precipitant of carotid artery dissection in this case and review the therapeutic options available.

  4. Perception of stress among aviation flight students (United States)

    Bhattacharya, Amrita

    There have been many studies related to stress among college students and the purpose of this research was to determine what causes stress among the student pilots enrolled in the Middle Tennessee State University (MTSU) flight program, also to find out what students think could be some possible ways to reduce their stress, and to compare the results with a previous study conducted by South Illinois University. The survey designed by Robertson and Ruiz (2010) was administered to MTSU students so that a comparison could be done between MTSU and SIU, as SIU used the same survey form. Results of the study showed that flight students are exposed to similar stress at both universities, but some of the factors that cause stress are different between MTSU and SIU students.

  5. Getting started with Twitter Flight

    CERN Document Server

    Hamshere, Tom


    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.

  6. MABEL Iceland 2012 Flight Report (United States)

    Cook, William B.; Brunt, Kelly M.; De Marco, Eugenia L.; Reed, Daniel L.; Neumann, Thomas A.; Markus, Thorsten


    In March and April 2012, NASA conducted an airborne lidar campaign based out of Keflavik, Iceland, in support of Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) algorithm development. The survey targeted the Greenland Ice Sheet, Iceland ice caps, and sea ice in the Arctic Ocean during the winter season. Ultimately, the mission, MABEL Iceland 2012, including checkout and transit flights, conducted 14 science flights, for a total of over 80 flight hours over glaciers, icefields, and sea ice.

  7. Radioactive waste disposal - ethical and environmental considerations - A Canadian perspective

    International Nuclear Information System (INIS)

    Roots, F.


    This work deals with ethical and environmental considerations of radioactive waste disposal in Canada. It begins with the canadian attitudes toward nature and environment. Then are given the canadian institutions which reflect an environmental ethic, the development of a canadian radioactive waste management policy, the establishment of formal assessment and review process for a nuclear fuel waste disposal facility, some studies of the ethical and risk dimensions of nuclear waste decisions, the canadian societal response to issues of radioactive wastes, the analysis of risks associated with fuel waste disposal, the influence of other energy related environmental assessments and some common ground and possible accommodation between the different views. (O.L.). 50 refs

  8. Health issues and health care expenses in Canadian bankruptcies and insolvencies. (United States)

    Himmelstein, David U; Woolhandler, Steffie; Sarra, Janis; Guyatt, Gordon


    Illness can contribute to financial problems directly, through high medical bills, and indirectly, through lost income. No previous in-depth studies have documented the role of medical problems among Canadian bankruptcy filers. We obtained the bankruptcy filings from a random sample of 5,000 debtors across Canada and mailed surveys to them seeking information about the medical antecedents of their bankruptcy. A total of 521 debtors responded (response rate of 10.4%), of whom 40.1 percent reported losing at least two weeks of work-related income because of illness or injury in the two years before their filing; 8.3 percent reported a similar income loss because of caregiving responsibilities for someone else who was ill. Although 60.1 percent of respondents reported being responsible for a medical bill within the previous two years, only 6.9 percent had bills over $5,000 (all amounts in Canadian Dollars). Prescription drugs were cited as the costliest medical expense by two-thirds of debtors reporting bills > $5,000, with dental bills cited by 22.2 percent. Universal health insurance affords Canadians protection against ruinous doctor and hospital bills. Inadequate coverage for prescription drugs and dental care, however, leaves some with unaffordable out-of-pocket costs. In addition, illness is a frequent indirect cause of bankruptcy through loss of work-related income.

  9. Stirling to Flight Initiative (United States)

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


    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.

  10. Cibola flight experiment satellite (United States)

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


    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

  11. Updated US and Canadian normalization factors for TRACI 2.1

    DEFF Research Database (Denmark)

    Ryberg, Morten; Vieira, Marisa D. M.; Zgola, Melissa


    for the US and US-Canadian regions. The normalization factors were used for highlighting the most contributing substances, thereby enabling practitioners to put more focus on important substances, when compiling the inventory, as well as providing them with normalization factors reflecting the actual...... situation. Normalization factors were calculated using characterization factors from the TRACI 2.1 LCIA model. The inventory was based on US databases on emissions of substances. The Canadian inventory was based on a previous inventory with 2005 as reference, in this inventory the most significant...... are nonspecific in composition, so the characterization factors which were selected to represent these categories may be significantly different from the actual identity of these aggregates. Furthermore the contribution highlighted the issue of carefully examining the effects of metals, even though the toxicity...

  12. Rates of induced abortion in Denmark according to age, previous births and previous abortions

    Directory of Open Access Journals (Sweden)

    Marie-Louise H. Hansen


    Full Text Available Background: Whereas the effects of various socio-demographic determinants on a woman's risk of having an abortion are relatively well-documented, less attention has been given to the effect of previous abortions and births. Objective: To study the effect of previous abortions and births on Danish women's risk of an abortion, in addition to a number of demographic and personal characteristics. Data and methods: From the Fertility of Women and Couples Dataset we obtained data on the number of live births and induced abortions by year (1981-2001, age (16-39, county of residence and marital status. Logistic regression analysis was used to estimate the influence of the explanatory variables on the probability of having an abortion in a relevant year. Main findings and conclusion: A woman's risk of having an abortion increases with the number of previous births and previous abortions. Some interactions were was found in the way a woman's risk of abortion varies with calendar year, age and parity. The risk of an abortion for women with no children decreases while the risk of an abortion for women with children increases over time. Furthermore, the risk of an abortion decreases with age, but relatively more so for women with children compared to childless women. Trends for teenagers are discussed in a separate section.

  13. X-38 - First Flight (United States)


    Reminiscent of the lifting body research flights conducted more than 30 years earlier, NASA's B-52 mothership lifts off carrying a new generation of lifting body research vehicle--the X-38. The X-38 was designed to help develop an emergency crew return vehicle for the International Space Station. NASA B-52, Tail Number 008, is an air launch carrier aircraft, 'mothership,' as well as a research aircraft platform that has been used on a variety of research projects. The aircraft, a 'B' model built in 1952 and first flown on June 11, 1955, is the oldest B-52 in flying status and has been used on some of the most significant research projects in aerospace history. Some of the significant projects supported by B-52 008 include the X-15, the lifting bodies, HiMAT (highly maneuverable aircraft technology), Pegasus, validation of parachute systems developed for the space shuttle program (solid-rocket-booster recovery system and the orbiter drag chute system), and the X-38. The B-52 served as the launch vehicle on 106 X-15 flights and flew a total of 159 captive-carry and launch missions in support of that program from June 1959 to October 1968. Information gained from the highly successful X-15 program contributed to the Mercury, Gemini, and Apollo human spaceflight programs as well as space shuttle development. Between 1966 and 1975, the B-52 served as the launch aircraft for 127 of the 144 wingless lifting body flights. In the 1970s and 1980s, the B-52 was the launch aircraft for several aircraft at what is now the Dryden Flight Research Center, Edwards, California, to study spin-stall, high-angle-of attack, and maneuvering characteristics. These included the 3/8-scale F-15/spin research vehicle (SRV), the HiMAT (Highly Maneuverable Aircraft Technology) research vehicle, and the DAST (drones for aerodynamic and structural testing). The aircraft supported the development of parachute recovery systems used to recover the space shuttle solid rocket booster casings. It also

  14. 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


    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.

  15. Adaptive nonlinear flight control (United States)

    Rysdyk, Rolf Theoduor


    Research under supervision of Dr. Calise and Dr. Prasad at the Georgia Institute of Technology, School of Aerospace Engineering. has demonstrated the applicability of an adaptive controller architecture. The architecture successfully combines model inversion control with adaptive neural network (NN) compensation to cancel the inversion error. The tiltrotor aircraft provides a specifically interesting control design challenge. The tiltrotor aircraft is capable of converting from stable responsive fixed wing flight to unstable sluggish hover in helicopter configuration. It is desirable to provide the pilot with consistency in handling qualities through a conversion from fixed wing flight to hover. The linear model inversion architecture was adapted by providing frequency separation in the command filter and the error-dynamics, while not exiting the actuator modes. This design of the architecture provides for a model following setup with guaranteed performance. This in turn allowed for convenient implementation of guaranteed handling qualities. A rigorous proof of boundedness is presented making use of compact sets and the LaSalle-Yoshizawa theorem. The analysis allows for the addition of the e-modification which guarantees boundedness of the NN weights in the absence of persistent excitation. The controller is demonstrated on the Generic Tiltrotor Simulator of Bell-Textron and NASA Ames R.C. The model inversion implementation is robustified with respect to unmodeled input dynamics, by adding dynamic nonlinear damping. A proof of boundedness of signals in the system is included. The effectiveness of the robustification is also demonstrated on the XV-15 tiltrotor. The SHL Perceptron NN provides a more powerful application, based on the universal approximation property of this type of NN. The SHL NN based architecture is also robustified with the dynamic nonlinear damping. A proof of boundedness extends the SHL NN augmentation with robustness to unmodeled actuator

  16. Field Flight Dynamics of Hummingbirds during Territory Encroachment and Defense. (United States)

    Sholtis, Katherine M; Shelton, Ryan M; Hedrick, Tyson L


    Hummingbirds are known to defend food resources such as nectar sources from encroachment by competitors (including conspecifics). These competitive intraspecific interactions provide an opportunity to quantify the biomechanics of hummingbird flight performance during ecologically relevant natural behavior. We recorded the three-dimensional flight trajectories of Ruby-throated Hummingbirds defending, being chased from and freely departing from a feeder. These trajectories allowed us to compare natural flight performance to earlier laboratory measurements of maximum flight speed, aerodynamic force generation and power estimates. During field observation, hummingbirds rarely approached the maximal flight speeds previously reported from wind tunnel tests and never did so during level flight. However, the accelerations and rates of change in kinetic and potential energy we recorded indicate that these hummingbirds likely operated near the maximum of their flight force and metabolic power capabilities during these competitive interactions. Furthermore, although birds departing from the feeder while chased did so faster than freely-departing birds, these speed gains were accomplished by modulating kinetic and potential energy gains (or losses) rather than increasing overall power output, essentially trading altitude for speed during their evasive maneuver. Finally, the trajectories of defending birds were directed toward the position of the encroaching bird rather than the feeder.

  17. Field Flight Dynamics of Hummingbirds during Territory Encroachment and Defense.

    Directory of Open Access Journals (Sweden)

    Katherine M Sholtis

    Full Text Available Hummingbirds are known to defend food resources such as nectar sources from encroachment by competitors (including conspecifics. These competitive intraspecific interactions provide an opportunity to quantify the biomechanics of hummingbird flight performance during ecologically relevant natural behavior. We recorded the three-dimensional flight trajectories of Ruby-throated Hummingbirds defending, being chased from and freely departing from a feeder. These trajectories allowed us to compare natural flight performance to earlier laboratory measurements of maximum flight speed, aerodynamic force generation and power estimates. During field observation, hummingbirds rarely approached the maximal flight speeds previously reported from wind tunnel tests and never did so during level flight. However, the accelerations and rates of change in kinetic and potential energy we recorded indicate that these hummingbirds likely operated near the maximum of their flight force and metabolic power capabilities during these competitive interactions. Furthermore, although birds departing from the feeder while chased did so faster than freely-departing birds, these speed gains were accomplished by modulating kinetic and potential energy gains (or losses rather than increasing overall power output, essentially trading altitude for speed during their evasive maneuver. Finally, the trajectories of defending birds were directed toward the position of the encroaching bird rather than the feeder.

  18. Canadian Hydrogen Association workshop on building Canadian strength with hydrogen systems. Proceedings

    International Nuclear Information System (INIS)


    The Canadian Hydrogen Association workshop on 'Building Canadian Strength with Hydrogen Systems' was held in Montreal, Quebec, Canada on October 19-20, 2006. Over 100 delegates attended the workshop and there were over 50 presentations made. The Canadian Hydrogen Association (CHA) promotes the development of a hydrogen infrastructure and the commercialization of new, efficient and economic methods that accelerate the adoption of hydrogen technologies that will eventually replace fossil-based energy systems to reduce greenhouse gas emissions. This workshop focused on defining the strategic direction of research and development that will define the future of hydrogen related energy developments across Canada. It provided a forum to strengthen the research, development and innovation linkages among government, industry and academia to build Canadian strength with hydrogen systems. The presentations described new technologies and the companies that are making small scale hydrogen and hydrogen powered vehicles. Other topics of discussion included storage issues, hydrogen safety, competition in the hydrogen market, hydrogen fuel cell opportunities, nuclear-based hydrogen production, and environmental impacts

  19. The Canadian Niagara Power Company story

    International Nuclear Information System (INIS)

    Ball, N.R.


    This book chronicles the history and contributions of the Canadian Niagara Power Company and its employees toward the establishment of electricity generation and distribution in Niagara Falls and Fort Erie, Ontario, dating back to its founding in 1892. Through historical photographs, maps and drawings, the book demonstrates the impact of electricity on the Niagara region. It emphasizes the many skills and jobs required to run the company that generated electricity and maintained a complete system to deliver power, metering, and billing services through the depression, wars, and postwar booms, even during lightning, snow and ice storms. The company began producing power in 1905 with what had been the world's largest-capacity turbines and generators that supplied power to both sides of the Niagara River. Initially, most of the electricity was exported to New York State. The company eventually expanded its Canadian customer service area from Niagara Falls, Ontario, to Fort Erie, Bridgeburg, Amigari, Ridgeway, Stevensville, Crystal Beach and Point Abino. Throughout its history, the Canadian Niagara Power Company provided power at a lower cost than its neighbouring competitors. The William Birch Rankine Generating Station became an important tourist attraction, showcasing the latest electrical appliances of the time in an effort to promote the use of electricity in homes and offices. Today, the station remains a tribute to the fact that natural beauty can coincide with industry. The book also chronicles the difficult business challenges caused by restructuring in the electric power industry in the 1990s, repairing aging equipment and applying the latest in automation and remote sensing technology. Today, the company as FortisOntario is expanding to other communities around Ontario. refs., tabs., figs

  20. Sink Potential of Canadian Agricultural Soils

    International Nuclear Information System (INIS)

    Boehm, M.; Junkins, B.; Desjardins, R.; Lindwall, W.; Kulshreshtha, S.


    Net greenhouse gas (GHG) emissions from Canadian crop and livestock production were estimated for 1990, 1996 and 2001 and projected to 2008. Net emissions were also estimated for three scenarios (low (L), medium (M) and high (H)) of adoption of sink enhancing practices above the projected 2008 level. Carbon sequestration estimates were based on four sink-enhancing activities: conversion from conventional to zero tillage (ZT), reduced frequency of summerfallow (SF), the conversion of cropland to permanent cover crops (PC), and improved grazing land management (GM). GHG emissions were estimated with the Canadian Economic and Emissions Model for Agriculture (CEEMA). CEEMA estimates levels of production activities within the Canadian agriculture sector and calculates the emissions and removals associated with those levels of activities. The estimates indicate a decline in net emissions from 54 Tg CO2-Eq yr-1 in 1990 to 52 Tg CO2-Eq yr-1 in 2008. Adoption of the sink-enhancing practices above the level projected for 2008 resulted in further declines in emissions to 48 Tg CO2-Eq yr-1 (L), 42 Tg CO2-Eq yr-1 (M) or 36 Tg CO2-Eq yr-1 (H). Among the sink-enhancing practices, the conversion from conventional tillage to ZT provided the largest C sequestration potential and net reduction in GHG emissions among the scenarios. Although rates of C sequestration were generally higher for conversion of cropland to PC and adoption of improved GM, those scenarios involved smaller areas of land and therefore less C sequestration. Also, increased areas of PC were associated with an increase in livestock numbers and CH4 and N2O emissions from enteric fermentation and manure, which partially offset the carbon sink. The CEEMA estimates indicate that soil C sinks are a viable option for achieving the UNFCCC objective of protecting and enhancing GHG sinks and reservoirs as a means of reducing GHG emissions (UNFCCC, 1992)

  1. New Methodology for Optimal Flight Control using Differential Evolution Algorithms applied on the Cessna Citation X Business Aircraft – Part 2. Validation on Aircraft Research Flight Level D Simulator


    Yamina BOUGHARI; Georges GHAZI; Ruxandra Mihaela BOTEZ; Florian THEEL


    In this paper the Cessna Citation X clearance criteria were evaluated for a new Flight Controller. The Flight Control Law were optimized and designed for the Cessna Citation X flight envelope by combining the Deferential Evolution algorithm, the Linear Quadratic Regulator method, and the Proportional Integral controller during a previous research presented in part 1. The optimal controllers were used to reach satisfactory aircraft’s dynamic and safe flight operations with respect to the augme...

  2. The Changing Health of Canadian Grandparents

    Directory of Open Access Journals (Sweden)

    Rachel Margolis


    Full Text Available Fertility postponement and mortality decline are shifting the demography of the grandparent population in Canada. The ways in which the aging of the grandparent population affects families depends in large part on the health of grandparents. In this article, we document the aging of Canadian grandparents between 1985 and 2011. However, despite being older, grandparents are healthier, signaling that the compression of morbidity is outpacing the postponement of grandparenthood. This shift is partly due to the higher educational attainment of this population and partly due to secular improvements in health over time. The improved health of grandparents in Canada has important implications for intergenerational transfers and relationships.

  3. Government intervention in the Canadian nuclear industry

    International Nuclear Information System (INIS)

    Doern, G.B.


    Several facets of government intervention in the Canadian nuclear industry are examined by reviewing the general historical evolution of intervention since the Second World War and by a more detailed analysis of three case studies. The case studies are the public sector - private sector content of the initial CANDU reactor program in the 1950's, the regulation of the health and safety of uranium miners in the late 1960's and early 1970's, and the Ontario Hydro decision in 1978 to enter into longer-term (40 year) contracts for uranium for its power reactors. (auth)

  4. Refugees and education in Canadian schools (United States)

    Kaprielian-Churchill, Isabel


    This article summarizes some of the findings and recommendations of a research project focusing on the nature and needs of refugee students in Canadian schools. The school performance of refugee students is examined under the following headings: immigration regulations; initial identification, assessment, placement and monitoring; unaccompanied youngsters; "at risk" students; academic needs; the conflict of cultures. In particular, the article discusses the changing role of the school in the light of recent immigration trends. Many of the findings are applicable to other national settings.

  5. Canadian propane industry by the numbers

    International Nuclear Information System (INIS)



    Excerpts from the 1997 'Canadian Propane Industry Statistical Review in Brief' are provided to illustrate propane production, transportation, industrial, automotive, agricultural, residential, commercial and public administration uses. Of the 12.67 billion litres of propane produced in Canada in 1997, approximately 60 per cent was exported to the United States at an average export price of 14.17 cents per litre. Total value of propane exports to the United States in 1997 exceeded one billion dollars. Ninety-five per cent of all propane produced in Canada originated from gas plants in Alberta. Major refinery production, as well as use as petrochemical feedstock was in Ontario, Alberta and Quebec

  6. Eastern Canadian Gastrointestinal Cancer Consensus Conference 2016. (United States)

    Bossé, D; Ng, T; Ahmad, C; Alfakeeh, A; Alruzug, I; Biagi, J; Brierley, J; Chaudhury, P; Cleary, S; Colwell, B; Cripps, C; Dawson, L A; Dorreen, M; Ferland, E; Galiatsatos, P; Girard, S; Gray, S; Halwani, F; Kopek, N; Mahmud, A; Martel, G; Robillard, L; Samson, B; Seal, M; Siddiqui, J; Sideris, L; Snow, S; Thirwell, M; Vickers, M; Goodwin, R; Goel, R; Hsu, T; Tsvetkova, E; Ward, B; Asmis, T


    The annual Eastern Canadian Gastrointestinal Cancer Consensus Conference 2016 was held in Montreal, Quebec, 5-7 February. Experts in radiation oncology, medical oncology, surgical oncology, and infectious diseases involved in the management of patients with gastrointestinal malignancies participated in presentations and discussion sessions for the purpose of developing the recommendations presented here. This consensus statement addresses multiple topics: ■ Follow-up and survivorship of patients with resected colorectal cancer■ Indications for liver metastasectomy■ Treatment of oligometastases by stereotactic body radiation therapy■ Treatment of borderline resectable and unresectable pancreatic cancer■ Transarterial chemoembolization in hepatocellular carcinoma■ Infectious complications of antineoplastic agents.

  7. Congruency sequence effects are driven by previous-trial congruency, not previous-trial response conflict


    Weissman, Daniel H.; Carp, Joshua


    Congruency effects in distracter interference tasks are often smaller after incongruent trials than after congruent trials. However, the sources of such congruency sequence effects (CSEs) are controversial. The conflict monitoring model of cognitive control links CSEs to the detection and resolution of response conflict. In contrast, competing theories attribute CSEs to attentional or affective processes that vary with previous-trial congruency (incongruent vs. congruent). The present study s...

  8. Passengers waste production during flights. (United States)

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


    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.

  9. Pigeons (C. livia Follow Their Head during Turning Flight: Head Stabilization Underlies the Visual Control of Flight

    Directory of Open Access Journals (Sweden)

    Ivo G. Ros


    Full Text Available Similar flight control principles operate across insect and vertebrate fliers. These principles indicate that robust solutions have evolved to meet complex behavioral challenges. Following from studies of visual and cervical feedback control of flight in insects, we investigate the role of head stabilization in providing feedback cues for controlling turning flight in pigeons. Based on previous observations that the eyes of pigeons remain at relatively fixed orientations within the head during flight, we test potential sensory control inputs derived from head and body movements during 90° aerial turns. We observe that periods of angular head stabilization alternate with rapid head repositioning movements (head saccades, and confirm that control of head motion is decoupled from aerodynamic and inertial forces acting on the bird's continuously rotating body during turning flapping flight. Visual cues inferred from head saccades correlate with changes in flight trajectory; whereas the magnitude of neck bending predicts angular changes in body position. The control of head motion to stabilize a pigeon's gaze may therefore facilitate extraction of important motion cues, in addition to offering mechanisms for controlling body and wing movements. Strong similarities between the sensory flight control of birds and insects may also inspire novel designs of robust controllers for human-engineered autonomous aerial vehicles.

  10. 49 CFR 1552.3 - Flight training. (United States)


    ... 49 Transportation 9 2010-10-01 2010-10-01 false Flight training. 1552.3 Section 1552.3..., DEPARTMENT OF HOMELAND SECURITY CIVIL AVIATION SECURITY FLIGHT SCHOOLS Flight Training for Aliens and Other Designated Individuals § 1552.3 Flight training. This section describes the procedures a flight school must...

  11. Exploring differences in Canadian adult men and women with diabetes management: results from the Canadian Community Health Survey. (United States)

    De Melo, Margaret; de Sa, Eric; Gucciardi, Enza


    Over 2 million Canadians are known to have diabetes. In addition to the economic burden placed on the healthcare system, the human cost associated with diabetes poses a heavy burden on those living with diabetes. The literature shows that apparent differences exist in diabetes complications and diabetes management between men and women. How self-care management and utilization of health services differ by sex is not clearly understood.The purpose of this study was to explore sex differences in diabetes self-care and medical management in the Canadian population, using a nationally representative sample. Data collected from the cross-sectional, population-based Canadian Community Health Survey (2007-2008) were used in these analyses. A bootstrap variance estimation method and bootstrap weights provided by Statistics Canada were used to calculate 95% confidence intervals. Bivariate analyses identified variables of interest between females and males that were used in subsequent multivariate analyses. A total of 131,959 respondents were surveyed for the years of 2007 and 2008, inclusive. Fully adjusted multinomial and logistic regression analyses revealed sex differences for those living with diabetes. Compared to men with diabetes, women were more likely to be in the lowest income quintiles than the highest (OR: 1.8, 95% CI: 1.3-2.6) and were more likely not to have a job in the previous week (OR: 1.8, 95% CI: 1.4-2.4). Women were also more likely to avoid foods with fats or high calories (OR: 2.1, 95% CI: 1.4-3.0 and OR: 2.2, 95% CI: 1.6-3.0, respectively), to be concerned about heart disease (OR: 1.6, 95% CI: 1.1-2.2), and to be non-smokers (OR: 2.2, 95% CI: 1.6-3.0). However, despite their increased concern, women checked their blood-glucose less frequently on a daily basis than men (μwomen = 1.7, 95% CI: 1.7-1.8; μmen = 3.1, 95% CI: 2.9-3.2). Women were more likely to have an anxiety disorder (OR: 2.3, 95% CI: 1.7-3.2) and a mood disorder (OR: 2.4, 95% CI: 1

  12. The Liberalization of Canadian Immigration Policy (1945-1976

    Directory of Open Access Journals (Sweden)

    Mariia Burtseva


    Full Text Available Immigration policy has played a key role in Canadian history since the second half of 19th century. Certainly, immigration legislation was a major element of it. Some of the most important reforms in Canadian immigration policy took place in the first decades after the Second World War. This was a time of multiple legislative reforms conducted by the Canadian government, but in general, the immigration regulations introduced during that period started the process of liberalization in this area. The Immigration Act of 1976 played a key role in building up the new liberal strategy of Canadian immigration. The pre-reform period is also important because it helps to understand the evolution process from discrimi¬native legislation to liberal policy. Therefore, the focus of this study is on the development of Canadian immigration policy from 1945 to 1976. The present research examines the main preconditions for the adoption of the 1976 Immigration Act. It analyses legislation regulations, which paved the ground for post-war Canadian immigration policy, with a particular emphasis on regula-tions enacted from 1945 to 1976. This article provides an overview of Canadian immigration policy in post-war period. It also identifies successive documents that proved particularly influential for Canadian immigration policy at the time. The findings of this research point to a variety of causes for the legislation changes, from foreign and domestic policy to economy policy.

  13. 48 CFR 225.870-7 - Acceptance of Canadian supplies. (United States)


    ... 48 Federal Acquisition Regulations System 3 2010-10-01 2010-10-01 false Acceptance of Canadian supplies. 225.870-7 Section 225.870-7 Federal Acquisition Regulations System DEFENSE ACQUISITION... Agreements and Coordination 225.870-7 Acceptance of Canadian supplies. For information on the acceptance of...

  14. The Fractious Academy: A Canadian Approach to Dispute Resolution (United States)

    McConnell, W. H.


    Narrates some characteristic reactions of Canadian academics to the tenure concept; discusses representative criteria considered for promotion at Canadian universities, and sets out a model dispute resolving procedure which could be used when the appropriateness of such awards is questioned in individual cases. (Author/JF)

  15. Seeking Internationalization: The State of Canadian Higher Education (United States)

    Anderson, Tim


    This article explores the internationalization of Canadian universities, with a focus on the rise of foreign postsecondary students in Canada, the economic impacts, and the various benefits, challenges, and adjustments that have been influenced by the continuing demographic shifts on Canadian campuses since 2000. Rooted in recent global and…

  16. Bridging Grant : Building Canadian Support for Global Health ...

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

    The Canadian Coalition for Global Health Research (CCGHR) is a not-for-profit organization dedicated to supporting research for global health equity. The CCGHR provides a networking and action platform for the Canadian global health research community and partners in low- and middle-income countries. This grant will ...

  17. Performance of Canadian commercial nuclear units and heavy water plants

    International Nuclear Information System (INIS)

    Woodhead, L.W.; Ingolfsrud, L.J.

    The operating history of Canadian commercial CANDU type reactors, i.e. Pickering generating station-A, is described. Capacity factors and unit energy costs are analyzed in detail. Equipment performance highlights are given. The performance of the two Canadian heavy water plants is described and five more are under construction or planned. (E.C.B.)

  18. School Autonomy and 21st Century Learning: The Canadian Context (United States)

    Newton, Paul; da Costa, Jose


    Purpose: The purpose of this paper is to report on the policy and practice contexts for school autonomy and twenty-first century learning in Canadian provinces. Design/methodology/approach: This paper reports on an analysis of policies in Canadian provinces (particularly the provinces of Alberta and Saskatchewan). The authors review policies…

  19. International Disputes and Cultural Ideas in the Canadian Arctic

    DEFF Research Database (Denmark)

    Burke, Danita Catherine

    of the Canadian-Arctic relationship. Using Canada as the focus for the analysis, the purpose of this project is to contribute to the existing Arctic studies and international relations literature by examining how interests and disputes in the Canadian Arctic region have been affected by domestic cultural...

  20. European and Canadian Studies of Loneliness among Seniors (United States)

    Perlman, Daniel


    This article provides a commentary on a set of five other articles reporting European and Canadian studies of loneliness among seniors. It places those works involving Canadian, Dutch, Finnish, and Welsh samples in the larger context of research on loneliness; offers reflections on the methods and findings reported in the articles; and addresses…

  1. From Republicans to Hacktivists: Recent Inclusion Initiatives in Canadian Theatre (United States)

    Johnston, Kirsty


    Could targeted inclusion initiatives press Canada's professional theatre community to tap the vast reserve of disabled people disenfranchised by its current practices? In 2015/2016, several long-standing professional institutions dedicated to fostering Canadian theatre joined with Canadian disability theatre artists in order to mark and understand…

  2. The Dividend and Share Repurchase Policies of Canadian Firms

    NARCIS (Netherlands)

    A. de Jong (Abe); R. van Dijk (Ronald); C.H. Veld


    textabstractWe empirically investigate dividend and share repurchase policies of Canadian firms. We have sent a questionnaire to the 500 largest non-financial Canadian companies listed on the Toronto Stock Exchange, of which 191 usable responses were returned. These data are used to measure

  3. Canadian Collaborative Grant Call for Letters of Intent

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

    Claire Thompson

    Funding in this call targets Canadian civil society organizations engaged in research for development ... This call aims to support one, or a group of, Canadian civil society organization(s) in their engagement with partner .... technology, engineering and mathematics skills and leadership development, as well as institutional ...

  4. Canadian Civil Society Organizations and Human Rights and Global ...

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

    This project aims to strengthen the capacity of Canadian civil society organizations (CSOs) to inform Canadian policy on human rights and global justice. ... in the developing world continue to face obstacles that limit their ability to establish careers and become leaders in the fields of science, technology, engineering, and ...

  5. Ethno-linguistic peculiarities of French Canadian and English ...

    African Journals Online (AJOL)

    Abstract. In this article, the ethno-linguistic features of French Canadian and English Canadian linguistic world-images are subjected to comparative analysis. As the result of the mentioned linguistic world-images comparison according to a number of criteria, the author comes to conclusion that there is a significant number ...

  6. Proceedings of the Canadian Nuclear Society 15. annual conference

    International Nuclear Information System (INIS)

    Huynh, H.M.


    The proceedings of the 15. annual conference of the Canadian Nuclear Society cover a wide range of nuclear topics, but the emphasis is on CANDU reactors and Canadian experience. The 89 papers are arranged in 17 sessions dealing with the following subjects: thermalhydraulics, fuel channels, operations, reactor physics, fuel, new technology, safety, training, waste management. The individual papers have been abstracted separately

  7. Denials of Racism in Canadian English Language Textbooks (United States)

    Gulliver, Trevor; Thurrell, Kristy


    This critical discourse analysis examines denials of racism in descriptions of Canada and Canadians from English language textbooks. Denials of racism often accompany racist and nationalist discourse, preempting observations of racism. The study finds that in representations of Canada or Canadians, English language texts minimize and downplay…

  8. How Canadian Universities Use Social Media to Brand Themselves (United States)

    Bélanger, Charles H.; Bali, Suchita; Longden, Bernard


    This paper explores social media marketing strategies applied by Canadian universities as a tool for institutional branding, recruitment and engagement of home and international students. The target sample involves the total population of Canadian university-status institutions ("N" = 106). Qualitative data were collected from two major…

  9. The design, implementation and analysis of a low cost flight simulator using RMC's 3DOF motion platform (United States)

    Le Bouthillier, Jean

    Flight simulation is extensively used by the Canadian Forces for the training of pilots. The flight simulators in use often feature 6 degrees of freedom motion platforms and exhibit high levels of realism. In this study, a low cost flight simulator was designed and implemented using a 3 degree of freedom motion platform with low cost, commercially available components. The objective of this work was to investigate the merits and shortfalls of such a system. This document describes the design, implementation and analysis of this system. Central to this work was the classical washout filter (WF) algorithm, a widely adopted motion cueing algorithm used to generate the platform's motion. An inertial measurement unit was used to study and optimize the classical WF algorithm. Finally, the system was assessed by collecting pilot ratings through a pilot validation exercise. Results showed that most pilots were satisfied by the system and that the addition of motion to flight simulation greatly enhanced flight simulation. Pilots also identified areas for improvements and potential applications for the flight simulator developed in this study. The empirical analysis of the system using an inertial measurement unit and the ratings obtained through a pilot validation exercise indicate that low cost 3 degrees of freedom flight simulator have potential for flight training.

  10. IVGEN Post Flight Analysis (United States)

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


    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

  11. Investigation of periodontal tissue during a long space flights (United States)

    Solovyeva, Zoya; Viacheslav, Ilyin; Skedina, Marina

    Previous studies conducted on the International Space Station found that upon completion of the space flight there are significant changes in the local immunity and periodontal microflora of astronauts. Also research in ground-based experiments that simulate space flight factors showed that prolonged hypokinesia antiorthostatic leads to impaired functional indicators of the periodontal vascular system, an unidirectional change from the microbiota and the immune system. That results in the appearance and progressive increase of the parodontial pathogenic bacteria and increase of the content of immunoglobulins in the oral fluid. All these changes are classified as risk factors for the development of inflammatory periodontal diseases in astronauts. However, the studies were unable to determine whether the changes result from a long space flight and the peculiarities of formation the local immunity and periodontal microbiota during the space flight, or they are one of the specific manifestations of the readaptationary post-flight condition of the body. In this regard, the planned research in a long space flight suggests: to use the means of microbial control, which can retain of the anaerobes periodontal microbiota sampling directly in the space flight; to assess the specificity of changes of the periodontal immune status under the influence of the space flight factors, and to assess the state of microcirculation of periodontal tissue in astronauts. A comprehensive study of the reaction of dentition during the space flight will make it possible to study the pathogenesis of changes for developing an adequate prevention aimed at optimizing the state of dentition of the astronauts.

  12. Canadian resources of uranium and thorium

    International Nuclear Information System (INIS)

    Griffith, J.W.; Roscoe, S.M.


    Canada has been one of the world's leading producers of uranium since the metal became important as a raw material in the development and production of atomic energy. One of the largest known deposits in the world is in Canada where present reserves represent about 37 per cent of the total among those countries that have published reserve statistics. The production of uranium has been characterized by features which are unique in Canadian mining, because the industry was created by the government at a time of emergency and, unlike other minerals, the sale of its product is controlled by the state. The rapid growth of the uranium-mining industry since World War II has been a remarkable achievement. In 1958, Canada was the world's leading producer of uranium and the value of U 3 O 8 produced in both 1958 and 1959 exceeded the value of any other Canadian-produced metal. As an export commodity, uranium ranked fourth in value in 1959 following newsprint, wheat, and lumber. Production from 25 mines in that year was 14 462 tonnes of U 3 O 8 valued at $345 million (all monetary values are in U.S. dollars). Since 1959, however, the decline in production, resulting from declining export markets, has been almost as rapid as the spectacular rise from 1953 to 1959. At the end of 1963 only seven mines were in production and by the end of 1965 only two mines are expected to remain in operation. (author)

  13. Canadian very large optical telescope technical studies (United States)

    Roberts, Scott C.; Morbey, Christopher L.; Crabtree, Dennis R.; Carlberg, Ray; Crampton, David; Davidge, Timothy J.; Fitzsimmons, Joeleff T.; Gedig, Michael H.; Halliday, David J.; Hesser, James E.; Herriot, Glen; Oke, J. Beverly; Pazder, John S.; Szeto, Kei; Veran, Jean-Pierre


    A design is proposed for a 20 m Canadian Very Large Optical Telescope (VLOT). This design meets the science, schedule, and availability requirements of the Canadian astronomical community. The telescope could be operational by early in the next decade to complement the science discoveries of the Next Generation Space Telescope (NGST) and Atacama Large Millimeter Array (ALMA). This design is suitable for location on the Mauna Kea summit ridge, and could replace the current 3.6 m CFHT telescope. The telescope structure provides room for two vertically oriented Nasmyth instruments, implements a very stiff monocoque mirror cell, and offers a short and direct load path to the telescope mount. A Calotte style dome structure offers many advantages over current designs including lower and more even power requirements, and a circular aperture that will better protect the telescope structure from wind buffeting. The science requirements are presented, and the telescope optical design, primary mirror pupil segmentation options, including hexagonal segments and a radial segment design with a central 8 m mirror, are considered. Point spread function plots and encircled energy calculations show that there is no significant diffraction performance difference between the options except that hexagonal segments in the 1 m point-to-point range appear to deliver poorer PSF's as compared to 2 m and larger segments. Plans for implementation of a Matlab based integrated telescope model are discussed. A summary of adaptive optics system issues for large telescopes is presented along with plans for future research in AO.

  14. Strengthening the Canadian alcohol advertising regulatory system. (United States)

    Heung, Carly M; Rempel, Benjamin; Krank, Marvin


    Research evidence points to harmful effects from alcohol advertising among children and youth. In particular, exposure to alcohol advertising has been associated with adolescents drinking both earlier and heavier. Although current federal and provincial guidelines have addressed advertising practices to prevent underage drinking, practice has not been supported by existing policy. While protective measures such as social marketing campaigns have the potential for counteracting the effects from alcohol advertising, the effectiveness of such measures can be easily drowned out with increasing advertising activities from the alcohol industry, especially without effective regulation. Research reviewed by the European Focus on Alcohol Safe Environment (FASE) Project has identified a set of key elements that are necessary to make alcohol advertising policy measures effective at protecting children and youth from the harmful effects of alcohol marketing. Using these key elements as an evaluation framework, there are critical components in the Canadian alcohol advertising regulatory system that clearly require strengthening. To protect impressionable children and youth against the harmful effects of alcohol advertising, 13 recommendations to strengthen current alcohol advertising regulations in Canada are provided for Canadian policy-makers, advertising standard agencies, and public health groups.

  15. Canadian Fusion Fuels Technology Project activities report

    International Nuclear Information System (INIS)


    The Canadian Fusion Fuels Technology Project was formally established in 1982. The project is directed toward the further development of Canadian capabilities in five major areas: tritium technology, breeder technology, materials technology, equipment development and safety and the environment. The project is funded by three partners - Government of Canada (50%), Ontario Provincial Government (25%) and Ontario Hydro (25%). The fiscal year 1984/85 represents the third year of operation of the project. In 1984/85, 108 contracts were awarded totalling $4 million. Supplementary funding by subcontractors added approximately $1.9 million to the total project value. More than 200 people participated in the technical work involved in the project. Sixteen people were on attachment to foreign facilities for terms ranging from 1 month to 2.5 years. Five patents were applied for including a tritium discrimination monitor, a new radio-chemical tritium separation method, a new variation of fuel cleanup by gas chromatography, a passive tritium permeation system using bimetallic membranes, and a new breeder process using lithium salts dissolved in heavy water

  16. Global change and Canadians: A teacher's guide

    International Nuclear Information System (INIS)


    A report called Global Change and Canadians has been produced by the Royal Society of Canada to answer basic questions being asked about global change issues. A teacher's guide is presented to help teachers make effective use of the report in developing programs with students concerning global change. A basic set of teaching and learning activities related to the major topics in the report is provided, curricular connections between global change topics and school programs are suggested, and some additional resources on global change are listed. The guide is divided into six chapters, each corresponding to the chapters of the global change report. Each chapter contains a summary of the major concepts from the report, some of the learning outcomes that occur when those concepts are addressed, a series of suggested activities or ideas, and a guide for assessing students' abilities relative to the concepts of the chapter. The topics of the chapters cover the nature of global change, the importance of global change to Canada, the causes of global change, the consequences of global change (including climate change and the greenhouse effect), the effects of global change on society, and Canadian responses to global change. 64 refs., 3 figs

  17. Exploring Canadian Echinoderm Diversity through DNA Barcodes.

    Directory of Open Access Journals (Sweden)

    Kara K S Layton

    Full Text Available DNA barcoding has proven an effective tool for species identification in varied groups of marine invertebrates including crustaceans, molluscs, polychaetes and echinoderms. In this study, we further validate its utility by analyzing almost half of the 300 species of Echinodermata known from Canadian waters. COI sequences from 999 specimens were assigned to 145 BINs. In most cases, species discrimination was straightforward due to the large difference (25-fold between mean intra- (0.48% and inter- (12.0% specific divergence. Six species were flagged for further taxonomic investigation because specimens assigned to them fell into two or three discrete sequence clusters. The potential influence of larval dispersal capacity and glacial events on patterns of genetic diversity is discussed for 19 trans-oceanic species. Although additional research is needed to clarify biogeographic patterns and resolve taxonomic questions, this study represents an important step in the assembly of a DNA barcode library for all Canadian echinoderms, a valuable resource for future biosurveillance programs.

  18. Energy management in the Canadian airline industry

    Energy Technology Data Exchange (ETDEWEB)


    The purpose of this report was to outline the current status of the Canadian airline industry's energy performance and to outline energy management programs undertaken within the industry. The study also provides an aviation energy management information base developed through a comprehensive computer bibliographical review. A survey of the industry was undertaken, the results of which are incorporated in this report. The Canadian airline industry has recognized the importance of energy management and considerable measures have been introduced to become more energy efficient. The largest single contributor to improved productivity is the acquisition of energy efficient aircraft. Larger airlines in particular have implemented a number of conservation techniques to reduce fuel consumption. However, both large and small airlines would further benefit through incorporating techniques and programs described in the annotated bibliography in this study. Rising fuel prices and economic uncertainties will be contributing factors to a smaller average annual growth in fuel consumption during the 1980s. The lower consumption levels will also be a result of continuing energy conservation awareness, new technology improvements, and improvements in air traffic control. 98 refs., 4 figs., 6 tabs.

  19. Controlling the temperature in Canadian homes

    International Nuclear Information System (INIS)

    Dewis, G.


    Programmable thermostats can be used to optimize the operation of heating and cooling systems by reducing system usage when occupants are asleep or when dwellings are unoccupied. This paper used the results of a 2006 households and the environment survey to examine how programmable thermostats are currently being used in Canadian households. The demographic factors associated with thermostat use were discussed, as well as how their usage varied in different areas of Canada. The study showed that most Canadian households set their temperature at between 20 to 22 degrees C during times when they are home and awake. Home temperatures were reduced to between 16 and 18 degrees C when household members were away or asleep. Only 4 out of 10 households used programmable thermostats. Of those who used programmable thermostats, only 7 in 10 programmed the thermostat to lower the temperature when occupants were asleep. Senior citizens and people with lower levels of education were less likely to use programmable thermostats. It was concluded that incentive programs and the distribution of free programmable thermostats will increase their use in households. Assistance in programming during the installation process should also be provided. Factor analyses must also be conducted to examine the influence of age, education, and income and the decisions made by households in relation to temperature regulation. 7 tabs

  20. Canadian tourist and Dominican Republic sex workers. (United States)

    Herold, E S


    The Dominican Republic is a popular tourist destination for Canadians. The country's sex industry for tourists developed markedly in the 1980s. The Puerto Plata/Sosua area is currently one of the most popular tourist sites and claimed the highest incidence of AIDS in 1989 at 23.2 cases/100,000 people. Two pilot phases of the Dominican Sex Workers and Canadian Tourists Study have been conducted to obtain methodological and empirical data to use in developing a major study of sex and tourism. First phase interviews were held only with beachboys who make money by having relations with female tourists, while phase two interviews were held with beachboys, female sex workers, and female and male tourists. Results indicate that female tourists consider their relations with male sex workers to be primarily social, while male tourists see their relations with female sex workers as more casual, sexual, and monetarily based. Further, women are more likely than men to continue their relationships with sex workers after returning to Canada; many help their men to immigrate and some get married. To learn more about the dynamics of tourism, sex, and AIDS prevention, the author proposes individual studies exploring the characteristics of each of the following four populations: male and female sex workers and male and female tourists.

  1. Canadian Indian mortality during the 1980s. (United States)

    Trovato, F


    This study concerns itself with an investigation of general and cause-specific mortality differentials between Canadian Registered Indians (a subset of all aboriginals) and the larger Canadian population over two points in time, 1981 and 1991. Multivariate analyses are executed separately across four segments of the life cycle: adulthood, infancy, early childhood and late childhood. With respect to adults, Indians share relatively high rates of suicide, homicide and accidental causes of death; over time, their conditional risks of death due to cancer and circulatory afflictions have gone up significantly. Mortality disadvantages for the Indians are also pronounced in infancy, early childhood (ages 1-4) and late childhood (ages 5-14). Suicide, accidents, and violence constitute serious problems among 5-14 year olds, while infectious/parasitic, respiratory and circulatory complications, plus accidents and violence, are principle killers in infancy. For children aged 1-4, respiratory problems and accidents/violence are prime causes of premature death. This less-than-optimal mortality profile is reflective of persistent problems associated with prolonged socioeconomic marginalization. The temporal pattern of change in chronic/degenerative disease mortality among adult Indians suggests a movement of this population toward a mature stage of epidemiological transition.

  2. Canadian experience with uranium tailings disposal

    International Nuclear Information System (INIS)

    Culver, K.B.


    During the first years of uranium production in Canada uranium tailings were discharged directly into valleys or lakes near the mill. Treatment with barium chloride to precipitate radium began in 1965 at the Nordic Mine at Elliot Lake, Ontario. In the mid-60s and early 70s water quality studies indicated that discharges from uranium tailings areas were causing degradation to the upper part of the Serpent River water system. Studies into acid generation, revegetation, and leaching of radium were initiated by the mining companies and resulted in the construction of treatment plants at a number of sites. Abandoned tailings sites were revegetated. At hearings into the expansion of the Elliot Lake operations the issue of tailings management was a major item for discussion. As a result federal and provincial agencies developed guidelines for the siting and development of urnaium tailings areas prior to issuing operating licences. Western Canadian uranium producers do not have the acid generation problem of the Elliot Lake operations. The Rabbit Lake mill uses settling ponds followed by filtration. High-grade tailings from Cluff Lake are sealed in concrete and buried. Uranium producers feel that the interim criteria developed by the Atomic Energy Control Board, if adopted, would have a harmful effect on the viability of the Canadian uranium industry

  3. Integrated Test and Evaluation Flight Test 3 Flight Test Plan (United States)

    Marston, Michael Lawrence


    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

  4. Radiations and space flight

    International Nuclear Information System (INIS)

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


    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. The Use of Voice Onset Time by Early Bilinguals to Distinguish Homorganic Stops in Canadian English and Canadian French (United States)

    Macleod, Andrea A. N.; Stoel-Gammon, Carol


    The goal of this study was to examine the extent to which bilingual speakers maintain language-specific phonological contrasts for homorganic stops when a cue is shared across both languages. To this end, voice onset time (VOT) was investigated in three groups of participants: early bilinguals speakers of Canadian French and Canadian English (n =…

  6. IceBridge Mission Flight Reports (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...

  7. The personal financial burden of chronic rhinosinusitis: A Canadian perspective. (United States)

    Yip, Jonathan; Vescan, Allan D; Witterick, Ian J; Monteiro, Eric


    Previous studies describe the financial burden of chronic rhinosinusitis (CRS) from the perspective of third-party payers, but, to our knowledge, none analyze the costs borne by patients (i.e., out-of-pocket expenses [OOPE]). Furthermore, this burden has not been previously investigated in the context of a publicly funded health care system. The purpose of this study was to characterize the financial impact of CRS on patients, specifically by evaluating its associated OOPEs and the perceived financial burden. The secondary aim was to determine the factors predictive of OOPEs and perceived burden. Patients with CRS at a tertiary care sinus center completed a self-administered questionnaire that assessed their socioeconomic characteristics, disease-specific quality of life (22-item Sino-Nasal Outcome Test [SNOT-22]), workdays missed due to CRS, perceived financial burden, and direct medical and nonmedical OOPEs over a 12-month period. Total OOPEs were calculated from the sum of direct medical and nonmedical OOPEs. Regression analyses determined factors predictive of OOPEs and the perceived burden. A total of 84 patients completed the questionnaires. After accounting for health insurance coverage and the median direct medical, direct nonmedical, and total OOPEs per patient over a 12-month period were Canadian dollars (CAD) $336.00 (2011) [U.S. $339.85], CAD $129.87 [U.S. $131.86], and CAD $607.10 [U.S. $614.06], respectively. CRS resulted in an average of 20.6 workdays missed over a 12-month period. Factors predictive of a higher financial burden included younger age, a greater number of previous sinus surgeries, financial burden and consider counseling them on strategies to offset expenses, including obtaining travel grants, using telemedicine for follow-up assessments, providing drug samples, and streamlining diagnostic testing with medical visits.

  8. Morphing Flight Control Surface for Advanced Flight Performance, Phase I (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. Ex-post assessment of genetically modified, low level presence in Canadian flax. (United States)

    Booker, Helen M; Lamb, Eric G; Smyth, Stuart J


    Canada is the world's largest producer and exporter of flaxseed. In 2009, DNA from deregistered genetically modified (GM) CDC Triffid was detected in a shipment of Canadian flaxseed exported to Europe, causing a large decrease in the amount of flax planted in Canada and a major shift in export markets. The flax industry in Canada undertook major changes to ensure the removal of transgenic flax from the supply chain. To demonstrate compliance, Canada adopted a protocol involving testing grain samples (post-harvest) using an RT-PCR test for the construct found in CDC Triffid. Efforts to remove the presence of GM flax from the value chain included reconstituting major flax varieties from GM-free plants. The reconstituted varieties represented the majority of planting seed in 2014. This study re-evaluates GM flax presence in Canadian grain stocks for an updated dataset (2009-2015) using a previously described simulation model to estimate low-level GM presence. Additionally, losses to the Canadian economy resulting from the reduction in flax production and export opportunities, costs associated with reconstituting major flax varieties, and testing for the presence of GM flax along the flax value chain are estimated.

  10. Are Canadian youth still exposed to second-hand smoke in homes and in cars? (United States)

    Barisic, A; Leatherdale, S T; Burkhalter, R; Ahmed, R


    The objective of this manuscript is to examine the prevalence of youth exposed to second-hand smoke (SHS) in homes and cars, changes in SHS exposure over time, and factors associated with beliefs youth hold regarding SHS exposure among a nationally representative sample of Canadian youth. Descriptive analysis of SHS exposure in homes and cars was conducted using data from the Canadian Youth Smoking Survey (2004, 2006 and 2008). Logistic regression was conducted to examine factors associated with beliefs youth had about SHS exposure in 2008. In 2008, 21.5% of youth reported being exposed to SHS in their home on a daily or almost daily basis, while 27.3% reported being exposed to SHS while riding in a car at least once in the previous week. Between 2004 and 2008, the prevalence of daily SHS exposure in the home and cars decreased by 4.7% and 18.0% respectively. Despite reductions in SHS exposure over time, a substantial number of Canadian youth continue to be exposed to SHS in homes and cars. Further effort is required to implement and evaluate policies designed to protect youth from SHS.

  11. Canadians' support for radical life extension resulting from advances in regenerative medicine. (United States)

    Dragojlovic, Nick


    This paper explores Canadian public perceptions of a hypothetical scenario in which a radical increase in life expectancy results from advances in regenerative medicine. A national sample of 1231 adults completed an online questionnaire on stem cell research and regenerative medicine, including three items relating to the possibility of Canadians' average life expectancy increasing to 120 years by 2050. Overall, Canadians are strongly supportive of the prospect of extended lifespans, with 59% of the sample indicating a desire to live to 120 if scientific advances made it possible, and 47% of respondents agreeing that such increases in life expectancy are possible by 2050. The strongest predictors of support for radical life extension are individuals' general orientation towards science and technology and their evaluation of its plausibility. These results contrast with previous research, which has suggested public ambivalence for biomedical life extension, and point to the need for more research in this area. They suggest, moreover, that efforts to increase public awareness about anti-aging research are likely to increase support for the life-extending consequences of that research program. Copyright © 2013 Elsevier Inc. All rights reserved.

  12. Screening of GABRB3 in French-Canadian families with idiopathic generalized epilepsy. (United States)

    Lachance-Touchette, Pamela; Martin, Caroline; Poulin, Chantal; Gravel, Micheline; Carmant, Lionel; Cossette, Patrick


    Mutations in the GABRB3 have been recently associated with childhood absence epilepsy (CAE) in families from Honduras and Mexico. In this study, we aimed to determine the frequency of mutation in this gene in our cohort of families with CAE and other related idiopathic generalized epilepsy (IGE) syndromes. We screened the open reading frame of GABRB3 in 183 French-Canadian individuals with IGE, including 88 with CAE. A total of nine single nucleotide polymorphisms (SNPs) have been identified,five of which are novel. The previously described P11S missense mutation was found in three affected and one unaffected individuals from a French-Canadian family. However, the P11S variant was also found in one of our 190 control individuals of French-Canadian origin, suggesting that this variant is rather a rare polymorphism in this population. Further screening of other IGE cohorts from various ethnic origins would help to confirm the association between this rare functional variant and epilepsy.

  13. Bisphosphonates as a Countermeasure to Space Flight Induced Bone Loss (United States)

    LeBlanc, Adrian; Matsumoto, Toshio; Jones, Jeffrey A.; Shapiro, Jay; Lang, Thomas F.; Smith, Scott M.; Shackelford, Linda C.; Sibonga, Jean; Evans, Harlan; Spector, Elisabeth; hide


    Bisphosphonates as a Countermeasure to Space Flight Induced Bone Loss (Bisphosphonates) will determine whether antiresorptive agents, in conjunction with the routine inflight exercise program, will protect ISS crewmembers from the regional decreases in bone mineral density documented on previous ISS missions.

  14. Environmental stressors during space flight: potential effects on body temperature (United States)

    Jauchem, J. R.


    1. Organisms may be affected by many environmental factors during space flight, e.g., acceleration, weightlessness, decreased pressure, changes in oxygen tension, radiofrequency radiation and vibration. 2. Previous studies of change in body temperature--one response to these environmental factors--are reviewed. 3. Conditions leading to heat stress and hypothermia are discussed.

  15. Canadian firms hear pitch from Pakistan

    Energy Technology Data Exchange (ETDEWEB)

    Lorenz, A.


    A high Pakistani government official recently paid a visit to Canadian resource exploration and investment companies to assure them that Pakistan is open for business. The government is carrying through a massive privatization campaign and is about to finalize a Canadian government-sponsored regulatory agency modeled on Alberta's Energy and Utilities Board; a further indication of a more secure environment for private sector investment. The Pakistani government intends to privatize all formerly government-owned exploration and production companies and sell up to 51 per cent of each company. The delegation hopes to entice Husky Oil, Talisman Energy, Bow Valley Industries, Enbridge Pipelines and BC Gas to look closely at the potential in Pakistan. With a domestic market of 142 million and energy-hungry neighbours on all sides who are willing to buy any oil or gas that Pakistan can produce, and total proven recoverable reserves estimated at 643 million barrels, with remaining recoverable reserves of 240 million barrels, the prospects for a healthy oil and natural gas industry in Pakistan are very good, indeed. On the gas side, about 24 Tcf of gas remains of the 40 Tcf discovered. Pakistan currently exports 10,000 barrels of waxy crude each day which their refineries can't handle. The remainder of domestic production is consumed locally, but it satisfies only about 20 per cent of the nation's current needs. The balance is imported from Saudi Arabia, Iran and the United Arab Emirates. All natural gas produced within Pakistan is consumed domestically, but currently only 16 per cent of the population has access to natural gas. Since October 1999, 33 new wells have been drilled resulting in some excellent discoveries. These will add about one bcf of gas to the current average daily production of 2.3 bcf. Despite the good prospects and the appeal of the privatization plan, Pakistan remains a hard sell. The risk of political unrest and deadly violence is high

  16. Markets for Canadian bitumen-based feedstock

    International Nuclear Information System (INIS)

    Marshall, R.; Lauerman, V.; Yamaguchi, N.


    This study was undertaken in an effort to determine the market potential for crude bitumen and derivative products from the Western Canadian Sedimentary Basin in 2007. As part of the study, CERI assessed the economic viability of a wide range of bitumen-based feedstock based on their refining values, investigated the sensitivity of refinery demand to the prices of these feedstocks, and examined the competitiveness of bitumen-based feedstocks and conventional crudes. A US$18.00 per barrel price for West Texas Intermediate at Cushing, Oklahoma, was assumed in all calculations, including other crude prices, as well as for Western Canadian and US crude oil production forecasts. Four different scenarios have been considered, but only the 'most plausible' scenario is discussed in the report. Consequently, Hydrocracked/Aromatics Saturated Synthetic Crude Oil, which is currently only a hypothetical product, is excluded from consideration. The availability of historical price differentials for the various competing crudes was another assumption used in developing the scenario. Proxy prices for the bitumen-based feedstock were based on their respective supply costs. The study concludes that the principal dilemma facing bitumen producers in Western Canada is to determine the amount of upgrading necessary to ensure an economic market for their product in the future. In general, the greater the degree of upgrading, the higher is the demand for bitumen-based feedstock. However, it must be kept in mind that the upgrading decisions of other bitumen producers, along with many other factors, will have a decisive impact on the economics of any individual project. The combination of coking capacity and asphalt demand limits the market for heavy and extra-heavy crudes. As a result, the researchers concluded that major expansion of heavy crude conversion capacity may have to wait until the end of the current decade. The economic market for bitumen-based blends in 2007 is estimated at

  17. An international internship on social development led by Canadian nursing students: empowering learning. (United States)

    Zanchetta, Margareth; Schwind, Jasna; Aksenchuk, Kateryna; Gorospe, Franklin F; Santiago, Lira


    A Canadian nursing student-led knowledge dissemination project on health promotion for social development was implemented with local professionals and communities in Brazil. (a) to identify how student-interns contrasted Canadian and Brazilian cultural and social realities within a primary healthcare context from a social development perspective; (b) to examine how philosophical underpinnings, including social critical theory and notions of social justice, guided student-interns in acknowledging inequalities in primary healthcare in Brazil; and (c) to participate in the debate on the contribution of Canadian nursing students to the global movement for social development. A qualitative appraisal of short-term outcomes of an international internship in the cities of Birigui & Araçatuba (São Paulo-Brazil). Four Canadian fourth-year undergraduate nursing students enrolled in a metropolitan university program. Recruitment was through an email invitation to the student-interns, who accepted, and signed informed consent forms. Their participation was unpaid and voluntary. One-time individual interviews were conducted at the end of their internships. Transcriptions of the audio-recorded interviews were coded using the qualitative software program ATLAS ti 6.0. The findings were analyzed using thematic analysis. Student-interns' learning unfolded from making associations among concepts, new ideas, and their previous experiences, leading to a personal transformation through which they established new conceptual and personal connections. The two main themes revealed by the thematic analysis were dichotomizing realities, that is, acknowledging the existence of "two sides of each situation," and discovering an unexpected reciprocity between global and urban health. Furthermore, the student-interns achieved personal and professional empowerment. The knowledge gained from the international experience helped the student-interns learn how to collaborate with Brazilian society

  18. Proceedings of a Canadian Hydrogen Association workshop : Building Canadian strength with hydrogen systems

    Energy Technology Data Exchange (ETDEWEB)

    Fairlie, M.; Laflamme, C. [Canadian Hydrogen Association, Ottawa, ON (Canada); Venter, R. [Canadian Hydrogen Association, Ottawa, ON (Canada)]|[Toronto Univ., ON (Canada); McMillan, R. [Natural Resources Canada, Ottawa, ON (Canada)] (comps.)


    The Canadian Hydrogen Association (CHA) promotes the development of a hydrogen infrastructure and the commercialization of new, efficient and economic methods that accelerate the adoption of hydrogen technologies that will eventually replace fossil-based energy systems to reduce greenhouse gas emissions. This workshop focused on defining the strategic direction of research and development that will define the future of hydrogen related energy developments across Canada. It provided a forum to strengthen the research, development and innovation linkages among government, industry and academia to build Canadian strength with hydrogen systems. The presentations described new technologies and the companies that are making small scale hydrogen and hydrogen powered vehicles. Other topics of discussion included storage issues, hydrogen safety, competition in the hydrogen market, hydrogen fuel cell opportunities, nuclear-based hydrogen production, and environmental impacts. The conference featured 54 presentations, of which 3 have been catalogued separately for inclusion in this database. refs., tabs., figs.

  19. The Canadian Biliary Atresia Registry: Improving the care of Canadian infants with biliary atresia. (United States)

    Butler, Alison E; Schreiber, Richard A; Yanchar, Natalie; Emil, Sherif; Laberge, Jean-Martin


    Biliary atresia is the most common cause of end-stage liver disease and liver cirrhosis in children, and the leading indication for liver transplantation in the paediatric population. There is no cure for biliary atresia; however, timely diagnosis and early infant age at surgical intervention using the Kasai portoenterostomy optimize the prognosis. Late referral is a significant problem in Canada and elsewhere. There is also a lack of standardized care practices among treating centres in this country. Biliary atresia registries currently exist across Europe, Asia and the United States. They have provided important evidence-based information to initiate changes to biliary atresia care in their countries with improvements in outcome. The Canadian Biliary Atresia Registry was initiated in 2013 for the purpose of identifying best standards of care, enhancing public education, facilitating knowledge translation and advocating for novel national public health policy programs to improve the outcomes of Canadian infants with biliary atresia.

  20. Flight Systems Monitor, Phase I (United States)

    National Aeronautics and Space Administration — This SBIR Phase I project will develop the Flight System Monitor which will use non-intrusive electrical monitoring (NEMO). The electronic system health of...

  1. Flight tracks, Northern California TRACON (United States)

    National Aeronautics and Space Administration — This dataset contains the records of all the flights in the Northern California TRACON. The data was provided by the aircraft noise abatement office...

  2. Aerothermodynamic Reentry Flight Experiments - EXPERT

    National Research Council Canada - National Science Library

    Muylaert, J; Walpot, L; Ottens, H; Cipollini, F


    ...) Microaerothermodynamics, and 5) Blackout. Special attention is given to the design of the flight measurement sensors themselves, their integration into the TPS as well as to the measurement of the free stream parameters during re-entry using an Air...

  3. Robust Decentralized Formation Flight Control

    Directory of Open Access Journals (Sweden)

    Zhao Weihua


    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.

  4. Flight Data For Tail 676 (United States)

    National Aeronautics and Space Administration — The following zip files contain individual flight recorded data in Matlab file format. There are 186 parameters each with a data structure that contains the...

  5. Flight Data For Tail 682 (United States)

    National Aeronautics and Space Administration — The following zip files contain individual flight recorded data in Matlab file format. There are 186 parameters each with a data structure that contains the...

  6. Flight Data For Tail 667 (United States)

    National Aeronautics and Space Administration — The following zip files contain individual flight recorded data in Matlab file format. There are 186 parameters each with a data structure that contains the...

  7. Flight Data For Tail 681 (United States)

    National Aeronautics and Space Administration — The following zip files contain individual flight recorded data in Matlab file format. There are 186 parameters each with a data structure that contains the...

  8. Flight Data For Tail 653 (United States)

    National Aeronautics and Space Administration — The following zip files contain individual flight recorded data in Matlab file format. There are 186 parameters each with a data structure that contains the...

  9. Flight Data For Tail 687 (United States)

    National Aeronautics and Space Administration — The following zip files contain individual flight recorded data in Matlab file format. There are 186 parameters each with a data structure that contains the...

  10. Flight Data For Tail 652 (United States)

    National Aeronautics and Space Administration — The following zip files contain individual flight recorded data in Matlab file format. There are 186 parameters each with a data structure that contains the...

  11. Flight Data For Tail 659 (United States)

    National Aeronautics and Space Administration — The following zip files contain individual flight recorded data in Matlab file format. There are 186 parameters each with a data structure that contains the...

  12. Flight Data For Tail 654 (United States)

    National Aeronautics and Space Administration — The following zip files contain individual flight recorded data in Matlab file format. There are 186 parameters each with a data structure that contains the...

  13. Flight Data For Tail 663 (United States)

    National Aeronautics and Space Administration — The following zip files contain individual flight recorded data in Matlab file format. There are 186 parameters each with a data structure that contains the...

  14. Flight Data For Tail 656 (United States)

    National Aeronautics and Space Administration — The following zip files contain individual flight recorded data in Matlab file format. There are 186 parameters each with a data structure that contains the...

  15. Flight Data For Tail 683 (United States)

    National Aeronautics and Space Administration — The following zip files contain individual flight recorded data in Matlab file format. There are 186 parameters each with a data structure that contains the...

  16. Euro plays : Canadian companies find success in England and France

    International Nuclear Information System (INIS)

    Marsters, S.


    A growing list of Canadian companies are searching for oil and gas onshore in England and France. Cirque Energy Corp., Vermilion Resources Ltd., Morrison Middlefield Resources Ltd., and Bow Valley Energy Ltd., are among the companies that are taking advantage of the underexplored basins, little competition, availability of land, and (in the case of the United Kingdom) a superior fiscal regime. Cirque Energy Corp. entered the U.K. in 1995 and currently has a 220,000 acre land position in the East Midlands basin, 250 km north of London. The main producing reservoirs are Permo-Carboniferous in age. The geology is similar to that in the North Sea. In November 1998, Cirque plans to build a 2,500 metre, six inch pipeline to transport up to 1,500 gross bbls of oil per day. Vermilion Resources Ltd. acquired oil and gas assets in the Paris and Aquitaine basin. The company has executed a $10.1 million workover and recompletion program on 42 wells which has increased production to more than 6,000 BOE per day from the previous 4,000 BOE per day. 3 figs

  17. Controversies Concerning the Canadian Not Criminally Responsible Reform Act. (United States)

    Lacroix, Robert; O'Shaughnessy, Roy; McNiel, Dale E; Binder, Renée L


    In Canada, individuals found not criminally responsible on account of mental disorder are subject to the disposition recommendations of the Provincial or Territorial Review Board of the jurisdiction where the offense was committed. Bill C-14, known as "The Not Criminally Responsible Reform Act" made changes to the postverdict disposition process of these individuals. This legislation was consistent with a broader "tough-on-crime" agenda of the previous federal government. The legislative changes codify that Review Boards take public safety as the "paramount consideration" in making their recommendations. The legislation also creates a new "high-risk" category for certain offenders and imposes limitations on their liberty. Further, Bill C-14 seeks to enhance victim involvement in the disposition process. The passage of this legislation has generated significant controversy in the medical and legal fields. Critics have stated that there is an absence of empirical evidence on which to base the amendments, that the legislation was an overreaction to high-profile cases, and that Bill C-14 is in questionable compliance with the Canadian Charter of Rights and Freedoms. In this review, we explore the potential catalysts involved in the creation of Bill C-14, the controversy surrounding the legislation, and the potential future impact on practicing forensic psychiatrists and on the forensic mental health system in Canada. © 2017 American Academy of Psychiatry and the Law.

  18. The Canadian war on drugs: structural violence and unequal treatment of Black Canadians. (United States)

    Khenti, Akwatu


    This paper examines the impact of Canada's war on drugs on segments of the Black community, specifically with respect to the impact of structural violence, over-policing, and high incarceration rates. It offers evidence of the systemic nature of these dynamics by examining the early context of the war, growing stigma against Blacks, globalizing influences, and the punitive focus of funding and policy. The paper also explores how Black men have been identified as the main enemy and how drug control efforts have served to diminish the health, well-being, and self-image of Black men via discriminatory and inequitable treatment before the law. The current high rates of imprisonment of Black men are an indicator of systematic deprivation of significant social capital, which will perpetuate socioeconomic harm and cycles of violence. This commentary calls for an immediate dissolution of policies regulating the war on drugs as the first step in remedying the injustices experienced by Black Canadians. Due to the lack of Canadian data in this important area, the paper also emphasizes the critical need for more research to shed more light on the Canadian-specific complexities. Copyright © 2013 Elsevier B.V. All rights reserved.

  19. Contraceptive sterilization among Canadians, 1984-1995

    Directory of Open Access Journals (Sweden)

    Vijaya Krishnan


    Full Text Available Prior to early 1970s, traditional methods were the principal means of controlling the number and spacing of births. Today, an estimated 57 per cent of the world’s married women use contraceptives and half use modern methods such as medical sterilizations. Recent statistics suggest that Canada has the highest sterilization rate in the Western world. This paper presents findings of research examining sterilization trends in Canada with respect to changing patterns in the use of modern contraceptives, using data from the 1984 Canadian Fertility Survey (CFS and the 1995 General Social Survey (GSS. The main finding is that there is a decrease in the use of tubal ligation and an increase in the use of hysterectomy over the period 1984-1995. Less educated women are more likely to be in the forefront of modern methods of contraception.

  20. Canadian Nuclear Safety Commission's intern program

    International Nuclear Information System (INIS)

    Gilmour, P.E.


    The Intern Program was introduced at the Canadian Nuclear Safety Commission, Canada's Nuclear Regulator in response to the current competitive market for engineers and scientists and the CNSC's aging workforce. It is an entry level staff development program designed to recruit and train new engineering and science graduates to eventually regulate Canada's nuclear industry. The program provides meaningful work experience and exposes the interns to the general work activities of the Commission. It also provides them with a broad awareness of the regulatory issues in which the CNSC is involved. The intern program is a two-year program focusing on the operational areas and, more specifically, on the generalist functions of project officers. (author)

  1. The development of the canadian veterinary profession. (United States)

    Prescott, J F


    A proposal for the development of Canadian veterinary education and of the organization of the profession is described. There should be one veterinary school with four branches (the current colleges). A student would train at any college in comparative medicine for two and one-half years and then train for 12 months or more in a specialty taught at one or more colleges. These specialties are general veterinary practice, poultry practice, public health and regulatory medicine, ruminant practice, swine practice, equine practice, small animal practice, fish medicine, fur-bearing and exotic animal medicine and research. After graduation in the chosen area there would be a period (six months or longer) of probationary licensing while field experience was gained before a final examination in the specialty was taken. The advantages and disadvantages of this proposal are discussed.

  2. Norman Bethune, Canadian surgeon: his Chinese connection. (United States)

    Summers, G V


    Norman Bethune, a Canadian thoracic surgeon who dabbled in painting, poetry, criticism, teaching and invention, was a member of the Communist Party of Canada. He became involved in two civil wars on opposite sides of the world and amassed both criticism and respect from colleagues and national leaders. The author describes Bethune's time in China, during which he developed front line field hospitals for Mao Tse-tung and his guerrillas in their struggle against the Japanese during 1938 and 1939. His efforts in China on behalf of the wounded brought him into contact with the primitive military medicine of the country and the poverty of its people; it earned for him a local reputation as saviour and benefactor and gave him an honoured place in Chinese military history.

  3. Canadian decommissioning experience from policy to project

    International Nuclear Information System (INIS)

    Pare, F.E.


    The Canadian policy on decommissioning of nuclear facilities as defined in the Atomic Energy Control Act and Regulations is administered by the Atomic Energy Control Board (AECB), a Federal Government agency. It requires that these facilities be decommissioned according to approved plans which are to be developed by the owner of the nuclear facility during its early stages of design and to be refined during its operating life. In this regulatory environment, Atomic Energy of Canada Limited (AECL) has developed a decommissioning strategy for power stations which consists of three distinctive phases. After presenting AECL's decommissioning philosophy, this paper explains its foundations and describes how it has and soon will be applied to various facilities. It terminates by providing a brief summary of the experience gained up to date on the implementation of this strategy

  4. AECL's strategy for decommissioning Canadian nuclear facilities

    International Nuclear Information System (INIS)

    Joubert, W.M.; Pare, F.E.; Pratapagiri, G.


    The Canadian policy on decommissioning of nuclear facilities as defined in the Atomic Energy Control Act and Regulations is administered by the Atomic Energy Control Board (AECB), a Federal Government agency. It requires that these facilities be decommissioned according to approved plans which are to be developed by the owner of the nuclear facility during its early stages of design and to be refined during its operating life. In this regulatory environment, Atomic Energy of Canada (AECL) has developed a decommissioning strategy for power stations which consists of three distinctive phases. After presenting AECL's decommissioning philosophy, its foundations are explained and it is described how it has and soon will be applied to various facilities. A brief summary is provided of the experience gained up to date on the implementation of this strategy. (author) 3 figs.; 1 tab

  5. Brewer spectrophotometer measurements in the Canadian Arctic (United States)

    Kerr, J. B.; Evans, W. F. J.


    In the winters of 1987 and 1988 measurements were conducted with the Brewer Spectrophotometer at Alert (82.5 N) and Resolute (74.5 N). The measurements were conducted as part of our Canadian Program to search for an Arctic Ozone Hole (CANOZE). Ozone measurements were conducted in the months of December, January and February using the moon as a light source. The total ozone measurements will be compared with ozonesonde profiles, from ECC sondes, flown once per week from Alert and Resolute. A modified Brewer Spectrophotometer was used in a special study to search for chlorine dioxide at Alert in March 1987. Ground based observations at Saskatoon in February and at Alert in March 1987 failed to detect any measureable chlorine dioxide. Interference from another absorbing gas, which we speculate may be nitrous acid, prevented the measurements at the low levels of chlorine dioxide detected in the Southern Hemisphere by Solomon et al.

  6. Mandibular incisor apicoectomy in a Canadian Beaver. (United States)

    Steenkamp, Gerhard; Venter, Leon; Crossley, David; Buss, Peter


    A 52-month-old Canadian beaver was presented for treatment of lip trauma resulting from overgrowth of the right mandibular incisor tooth following earlier loss of the right maxillary incisor tooth. Extraction of the affected tooth was considered, but rejected due to the length of the embedded portion of rodent mandibular incisor teeth. The lip injury was managed by crown reduction (odontoplasty) of the overgrowing incisor tooth pending a more permanent treatment plan. A 2-cm apicoectomy of the right mandibular incisor tooth was performed to arrest growth of the tooth when the beaver was 82-months-old. The remainder of the tooth continued to erupt and was completely expelled during a 9-month period with one additional odontoplasty being required. The beaver continued to feed normally with just the left maxillary and mandibular incisor teeth until its death at 118-months, with odontoplasty performed twice on the remaining incisor teeth during the 30-months following exfoliation.

  7. The Canadian nuclear power industry. Background paper

    International Nuclear Information System (INIS)

    Nixon, A.


    Nuclear power, the production of electricity from uranium through nuclear fission, is by far the most prominent segment of the nuclear industry. The value of the electricity produced, $3.7 billion in Canada in 1992, far exceeds the value of any other product of the civilian nuclear industry. Power production employs many more people than any other sector, the capital investment is much greater, and nuclear power plants are much larger and more visible than uranium mining and processing facilities. They are also often located close to large population centres. This paper provides an overview of some of the enormously complex issues surrounding nuclear power. It describes the Canadian nuclear power industry, addressing i particular its performance so far and future prospects. (author). 1 tab

  8. Canadian Activities in Space Debris Mitigation Technologies (United States)

    Nikanpour, Darius; Jiang, Xin Xiang; Goroshin, Samuel; Haddad, Emile; Kruzelecky, Roman; Hoa, Suong; Merle, Philippe; Kleiman, Jacob; Gendron, Stephane; Higgins, Andrew; Jamroz, Wes

    The space environment, and in particular the Low Earth Orbit (LEO), is becoming increasingly populated with space debris which include fragments of dysfunctional spacecraft parts and materials traveling at speeds up to 15 km per second. These pose an escalating potential threat to LEO spacecraft, the international space station, and manned missions. This paper presents the Canadian activities to address the concerns over space debris in terms of debris mitigation measures and technologies; these include novel spacecraft demise technologies to safely decommission the spacecraft at the end of the mission, integrated self-healing material technologies for spacecraft structures to facilitate self-repair and help maintain the spacecraft structural and thermal performance, hypervelocity ground test capability to predict the impact of space debris on spacecraft performance, and ways of raising awareness within the space community through participation in targeted Science and Technology conferences and international forums.

  9. Diabetic retinopathy in native and nonnative Canadians. (United States)

    Ross, Stuart A; McKenna, Anne; Mozejko, Sheila; Fick, Gordon H


    High prevalence rates of type 2 diabetes are being observed in native Canadian communities. It is believed that native populations have a higher prevalence rate of vascular complications than nonnatives. The Southern Alberta Study of Diabetic Retinopathy (DR) examined the prevalence and incidence of DR and associated metabolic abnormalities in native and nonnative subjects. Prevalence rates of DR in type 2 diabetic native and nonnative subjects were identical, with a prevalence rate of 40%. Native subjects with retinopathy, however, tended to have more advanced changes of retinopathy compared to the nonnative subjects. Key factors such as A1c, blood pressure, duration of diabetes, and lipid values were not significantly different between the two cohorts. These data indicate that ethnicity does play a role in the development and severity of DR but potential risk factors that may affect the development of retinopathy are not significantly different between native and nonnative groups.

  10. Diabetic Retinopathy in Native and Nonnative Canadians

    Directory of Open Access Journals (Sweden)

    Stuart A. Ross


    Full Text Available High prevalence rates of type 2 diabetes are being observed in native Canadian communities. It is believed that native populations have a higher prevalence rate of vascular complications than nonnatives. The Southern Alberta Study of Diabetic Retinopathy (DR examined the prevalence and incidence of DR and associated metabolic abnormalities in native and nonnative subjects. Prevalence rates of DR in type 2 diabetic native and nonnative subjects were identical, with a prevalence rate of 40%. Native subjects with retinopathy, however, tended to have more advanced changes of retinopathy compared to the nonnative subjects. Key factors such as A1c, blood pressure, duration of diabetes, and lipid values were not significantly different between the two cohorts. These data indicate that ethnicity does play a role in the development and severity of DR but potential risk factors that may affect the development of retinopathy are not significantly different between native and nonnative groups.

  11. Local sampling for indoor flight


    De Croon, G.C.H.E.; De Wagter, C.; Remes, B.D.W.; Ruijsink, H.M.


    A challenging problem in artificial intelligence is to achieve vision-based autonomous indoor flight with Micro Air Vehicles. Approaches to this problem currently do not make use of image appearance features, because these features generally are computationally expensive. In this article, we deliver a proof-ofconcept that appearance features can be extracted computationally efficient enough to be used for autonomous flight. In particular, we present a novel height control algorithm that uses ...

  12. BATMAV: a 2-DOF bio-inspired flapping flight platform (United States)

    Bunget, Gheorghe; Seelecke, Stefan


    Due to the availability of small sensors, Micro-Aerial Vehicles (MAVs) can be used for detection missions of biological, chemical and nuclear agents. Traditionally these devices used fixed or rotary wings, actuated with electric DC motortransmission, a system which brings the disadvantage of a heavier platform. The overall objective of the BATMAV project is to develop a biologically inspired bat-like MAV with flexible and foldable wings for flapping flight. This paper presents a flight platform that features bat-inspired wings which are able to actively fold their elbow joints. A previous analysis of the flight physics for small birds, bats and large insects, revealed that the mammalian flight anatomy represents a suitable flight platform that can be actuated efficiently using Shape Memory Alloy (SMA) artificial-muscles. A previous study of the flight styles in bats based on the data collected by Norberg [1] helped to identify the required joint angles as relevant degrees of freedom for wing actuation. Using the engineering theory of robotic manipulators, engineering kinematic models of wings with 2 and 3-DOFs were designed to mimic the wing trajectories of the natural flier Plecotus auritus. Solid models of the bat-like skeleton were designed based on the linear and angular dimensions resulted from the kinematic models. This structure of the flight platform was fabricated using rapid prototyping technologies and assembled to form a desktop prototype with 2-DOFs wings. Preliminary flapping test showed suitable trajectories for wrist and wingtip that mimic the flapping cycle of the natural flyer.

  13. Approaches to R education in Canadian universities (United States)

    Carson, Michael A.; Basiliko, Nathan


    Introduction: R language is a powerful tool used in a wide array of research disciplines and owes a large amount of its success to its open source and adaptable nature. The popularity of R has grown rapidly over the past two decades and the number of users and packages is increasing at a near exponential rate. This rapid growth has prompted a number of formal and informal online and text resources, the volume of which is beginning to present challenges to novices learning R. Students are often first exposed to R in upper division undergraduate classes or during their graduate studies. The way R is presented likely has consequences for the fundamental understanding of the program and language itself; user comprehension of R may be better if learning the language itself followed by conducting analyses, compared to someone who is learning another subject (e.g. statistics) using R for the first time. Consequently, an understanding of the approaches to R education is critical. Methods: To establish how students are exposed to R, we used a survey to evaluate the current use in Canadian university courses, including the context in which R is presented and the types of uses of R in the classroom. Additionally, we looked at the reasons professors either do or don’t use/teach R. Results: We found that R is used in a broad range of course disciplines beyond statistics (e.g. ecology) and just over one half of Canadian universities have at least one course that uses R. Discussion and Conclusions: Developing programming-literate students is of utmost importance and our hope is that this benchmark study will influence how post-secondary educators, as well as other programmers, approach R, specifically when developing educational and supplemental content in online, text, and package-specific formats aiding in student’s comprehension of the R language. PMID:28003881

  14. The 2013 Canadian Forces Mental Health Survey (United States)

    Bennett, Rachel E.; Boulos, David; Garber, Bryan G.; Jetly, Rakesh; Sareen, Jitender


    Objective: The 2013 Canadian Forces Mental Health Survey (CFMHS) collected detailed information on mental health problems, their impacts, occupational and nonoccupational determinants of mental health, and the use of mental health services from a random sample of 8200 serving personnel. The objective of this article is to provide a firm scientific foundation for understanding and interpreting the CFMHS findings. Methods: This narrative review first provides a snapshot of the Canadian Armed Forces (CAF), focusing on 2 key determinants of mental health: the deployment of more than 40,000 personnel in support of the mission in Afghanistan and the extensive renewal of the CAF mental health system. The findings of recent population-based CAF mental health research are reviewed, with a focus on findings from the very similar mental health survey done in 2002. Finally, key aspects of the methods of the 2013 CFMHS are presented. Results: The findings of 20 peer-reviewed publications using the 2002 mental health survey data are reviewed, along with those of 25 publications from other major CAF mental health research projects executed over the past decade. Conclusions: More than a decade of population-based mental health research in the CAF has provided a detailed picture of its mental health and use of mental health services. This knowledge base and the homology of the 2013 survey with the 2002 CAF survey and general population surveys in 2002 and 2012 will provide an unusual opportunity to use the CFMHS to situate mental health in the CAF in a historical and societal perspective. PMID:27270738

  15. Approaches to R education in Canadian universities. (United States)

    Carson, Michael A; Basiliko, Nathan


    Introduction: R language is a powerful tool used in a wide array of research disciplines and owes a large amount of its success to its open source and adaptable nature. The popularity of R has grown rapidly over the past two decades and the number of users and packages is increasing at a near exponential rate. This rapid growth has prompted a number of formal and informal online and text resources, the volume of which is beginning to present challenges to novices learning R. Students are often first exposed to R in upper division undergraduate classes or during their graduate studies. The way R is presented likely has consequences for the fundamental understanding of the program and language itself; user comprehension of R may be better if learning the language itself followed by conducting analyses, compared to someone who is learning another subject (e.g. statistics) using R for the first time. Consequently, an understanding of the approaches to R education is critical. Methods: To establish how students are exposed to R, we used a survey to evaluate the current use in Canadian university courses, including the context in which R is presented and the types of uses of R in the classroom. Additionally, we looked at the reasons professors either do or don't use/teach R. Results: We found that R is used in a broad range of course disciplines beyond statistics (e.g. ecology) and just over one half of Canadian universities have at least one course that uses R. Discussion and Conclusions: Developing programming-literate students is of utmost importance and our hope is that this benchmark study will influence how post-secondary educators, as well as other programmers, approach R, specifically when developing educational and supplemental content in online, text, and package-specific formats aiding in student's comprehension of the R language.

  16. Canadian heavy water production - 1970 to 1980

    International Nuclear Information System (INIS)

    Galley, M.R.


    In the last decade, heavy water production in Canada has progressed from the commissioning of a single unit plant in Nova Scotia to a major production industry employing 2200 persons and operating three plants with an aggregate annual production capability in excess of 1800 Mg. The decade opened with an impending crisis in the supply of heavy water due to failure of the first Glace Bay Heavy Water Plant and difficulty in commissioning the second Canadian plant at Port Hawkesbury. Lessons learned at this latter plant were applied to the Bruce plant where the first two units were under construction. When the Bruce units were commissioned in 1973 the rate of approach to design production rates was much improved, renewing confidence in Canada's ability to succeed in large scale heavy water production. In the early 1970's a decision was made to rehabilitate the Glace Bay plant using a novel flowsheet and this rebuilt plant commenced production in 1976. The middle of the decade was marked by two main events: changes in ownership of the operating plants and initiation of a massive construction program to support the forecast of a rapidly expanding CANDU power station construction program. New production units embodying the best features of their predecessors were committed at Bruce by Ontario Hydro and at La Prade, Quebec, by AECL. The high growth rate in electrical demand did not continue and some new plant construction was curtailed. The present installed production capacity will now probably be adequate to meet anticipated demand for the next decade. Canadian plants have now produced more than 7800 Mg of heavy water at a commercially acceptable cost and with a high degree of safety and compliance with appropriate environmental regulations

  17. Solar array flight dynamic experiment (United States)

    Schock, Richard W.


    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.

  18. STS-96 FD Highlights and Crew Activities Report: Flight Day 07 (United States)


    On this seventh day of the STS-96 Discovery mission, the flight crew, Commander Kent V. Rominger, Pilot Rick D. Husband, and Mission Specialists Ellen Ochoa, Tamara E. Jernigan, Daniel T. Barry, Julie Payette, and Valery Ivanovich Tokarev are seen completing the transfer of material and equipment to the International Space Station. The astronauts install parts of a wireless strain gauge system, clean filters and check smoke detectors. The crew participates in a variety of news conferences with media representatives. Payette accepts a congratulatory call from Canadian Prime Minister Jean Chretien and answers questions from schoolchildren in Ottawa.

  19. Knowledge synthesis and the Canadian Institutes of Health Research

    Directory of Open Access Journals (Sweden)

    Graham Ian D


    Full Text Available Abstract The Canadian Institutes of Health Research (CIHR is Canada's premier health-research funding agency. We fund nearly 14,000 researchers and trainees in four theme areas: biomedical, clinical, health services, and population and public-health research. Our mandate is 'to excel according to international standards of scientific excellence, in the creation of new knowledge and its translation into improved health for Canadians, more effective health services and products and a strengthened Canadian health care system'. Knowledge synthesis is a key element of the knowledge-translation objectives of CIHR, as outlined in our definition of knowledge-translation.

  20. Developing an Addictions Nursing Competency Framework Within a Canadian Context. (United States)

    Ling, Sara; Watson, Alison; Gehrs, Margaret

    Clients with substance use disorders access care in all areas of the health care system, yet the Canadian nursing literature lacks content on the knowledge, skills, and judgment needed by nurses who work with this population. To address this literature gap, two Advanced Practice Nurses adapted the Canadian Centre on Substance Abuse's Technical Competencies for Canada's Substance Abuse Workforce to include nursing content and theory. This article describes the adaptation process and validation method used by the Advanced Practice Nurses at a large, Canadian urban teaching hospital and includes discussion about actual and potential opportunities for practical application of the adapted framework.

  1. Adaptation of the ITER facility design to a Canadian site

    International Nuclear Information System (INIS)

    Smith, S.


    This paper presents the status of Canadian efforts to adapt the newly revised ITER facility design to suit the specific characteristics of the proposed Canadian site located in Clarington, west of Toronto, Ontario. ITER Canada formed a site-specific design team in 1999, comprising participants from three Canadian consulting companies to undertake this work. The technical aspects of this design activity includes: construction planning, geotechnical investigations, plant layout, heat sink design, electrical system interface, site-specific modifications and tie-ins, seismic design, and radwaste management. These areas are each addressed in this paper. (author)

  2. [View of the canadian history of corneal transplantation]. (United States)

    Milot, Jean


    The author presents a brief chronological summary of early attempted corneal grafts over the last century culminating in the first successful Canadian keratoplasty by Dr. Jean Audet-Lapointe in Montreal on April 20, 1945. Medical journals of the day retrace the early experiences at various Canadian medical centres with this new innovative surgical procedure. Testimonials from newspaper clippings highlight the professional career of Dr. Jean Audet-Lapointe. The role and support of the CNIB in Montreal and Toronto in establishing the Canadian Eye Bank Service are also presented.

  3. Informing a research agenda for the Canadian chiropractic profession. (United States)

    French, Simon D; Parkes, Ronda; Bruno, Paul; Passmore, Steven; Hayden, Jill A; Srbely, John; Kawchuk, Greg


    Our research group recently published a Delphi study that identified Canadian chiropractic profession research priority areas. At the same time, the Canadian Chiropractic Research Foundation (CCRF) was developing their own research priority areas. In this commentary, we discuss the results of the Delphi study, compare and contrast these results to the research priorities of the CCRF, and report new data from a survey about where members of the chiropractic profession think that available research funding should be spent. Ongoing dialogue is needed with all Canadian chiropractic stakeholders to turn these research priorities into action.

  4. Characteristics of first-year students in Canadian medical schools (United States)

    Dhalla, Irfan A.; Kwong, Jeff C.; Streiner, David L.; Baddour, Ralph E.; Waddell, Andrea E.; Johnson, Ian L.


    Background The demographic and socioeconomic profile of medical school classes has implications for where people choose to practise and whether they choose to treat certain disadvantaged groups. We aimed to describe the demographic and socioeconomic characteristics of first-year Canadian medical students and compare them with those of the Canadian population to determine whether there are groups that are over- or underrepresented. Furthermore, we wished to test the hypothesis that medical students often come from privileged socioeconomic backgrounds. Methods As part of a larger Internet survey of all students at Canadian medical schools outside Quebec, conducted in January and February 2001, first-year students were asked to give their age, sex, self-described ethnic background using Statistics Canada census descriptions and educational background. Postal code at the time of high school graduation served as a proxy for socioeconomic status. Respondents were also asked for estimates of parental income and education. Responses were compared when possible with Canadian age-group-matched data from the 1996 census. Results Responses were obtained from 981 (80.2%) of 1223 first-year medical students. There were similar numbers of male and female students (51.1% female), with 65% aged 20 to 24 years. Although there were more people from visible minorities in medical school than in the Canadian population (32.4% v. 20.0%) (p students were less likely than the Canadian population to come from rural areas (10.8% v. 22.4%) (p Canadian population aged 45 to 64), parents' occupation (69.3% of fathers and 48.7% of mothers were professionals or high-level managers, as compared with 12.0% of Canadians) and household income (15.4% of parents had annual household incomes less than $40 000, as compared with 39.7% of Canadian households; 17.0% of parents had household incomes greater than $160 000, as compared with 2.7% of Canadian households with an income greater than $150 000

  5. Research and Production Corporation Radiy activities within Canadian nuclear market

    International Nuclear Information System (INIS)

    Bakhmach, I.; Siora, O.; Kharchenko, V.; Sklyar, V.; Andrashov, A.


    This paper presents key results of RPC Radiy activities within Canadian nuclear market. RPC Radiy (located in Kirovograd, Ukraine) is a vendor which designs and produces digital safety I and C platform as well as turnkey applications, based on the platform, for NPPs (safety systems). The main feature of the Radiy Platform is the application of Field Programmable Gates Arrays (FPGA) as programmable components for logic control operations. Since 2009 RPC Radiy started to explore the possibility to conduct the expansion to Canadian nuclear market. The activities performed by RPC Radiy related to this direction are resulted in several joint projects with Canadian companies. (author)

  6. Contemporary management of stage i testicular seminoma: a survey of Canadian radiation oncologists (United States)

    Samant, R.; Alomary, I.; Genest, P.; Eapen, L.


    Recently published studies clearly indicate that there are now several acceptable options for managing stage i testicular seminoma patients after orchiectomy. We therefore decided to survey Canadian radiation oncologists to determine how they currently manage such patients and to compare the results with previous surveys. Our results demonstrate that adjuvant single-agent chemotherapy is being considered as an option by an increasing proportion of radiation oncologists (although it is not considered the preferred option), the routine use of radiotherapy is declining, and surveillance is becoming increasingly popular and is recommended most often. PMID:18769613

  7. In-Flight Personalized Medication Management (United States)

    Peletskaya, E.; Griko, Y. V.


    Current medication selection for treatment of astronauts during spaceflight missions is primarily dictated by the task of efficiently treating the widest possible range of physiological conditions and illnesses with a limited set of medications. Dosage and recommendations on the combination of drugs are based on the assumption of genetically equal drug sensitivity and unchanged metabolism. To our knowledge, there was no pre-flight drug sensitivity testing on a genetic level for any of the previous manned NASA space missions. Although many of the common, binary drug-drug interactions are, most likely, already considered in the ISS Medical kit composition, multi-drug and multi-drug-gene factors are not incorporated in the medication selection or prescription. Furthermore, due to the physiological changes occurring in microgravity environments, astronauts might be susceptible to potential increased drug toxicity as a result of decreased clearance of numerous drugs. In particular, perturbation of CYP450 enzymes which contribute to the hepatic metabolism of the majority of drugs may have significant effects on therapeutic efficacy and increase treatment-related toxicity5. The genes encoding the CYP450 enzymes are highly variable in humans. Inheritable variations of CYP450 hepatic metabolizer enzymes and transport proteins play a crucial role in the inter-individual variability of drug efficiency and risks of adverse drug reactions5. Additionally, there are some reports that document changes in the levels of production of drug-metabolizing enzymes in microgravity. These data can be extrapolated to provide reasonable assumptions of decreased levels of expression for most CYP450 enzymes in human body during prolonged space travel. If the prescribed medication regiment is not fully effective or causes undesirable side effects, the ability of the astronauts to function and maintain peak performance levels during space flight could be seriously compromised. Therefore

  8. Automated ISS Flight Utilities (United States)

    Offermann, Jan Tuzlic


    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

  9. Nonlinear region of attraction analysis for hypersonic flight vehicles’ flight control verification


    Jie Chen; Cun Bao Ma; Dong Song


    The stability analysis method based on region of attraction is proposed for the hypersonic flight vehicles’ flight control verification in this article. Current practice for hypersonic flight vehicles’ flight control verification is largely dependent on linear theoretical analysis and nonlinear simulation research. This problem can be improved by the nonlinear stability analysis of flight control system. Firstly, the hypersonic flight vehicles’ flight dynamic model is simplified and fitted by...

  10. An exploratory study on the consequences and contextual factors of intimate partner violence among immigrant and Canadian-born women


    Du Mont, Janice; Forte, Tonia


    Objective To compare immigrant and Canadian-born women on the physical and psychological consequences of intimate partner violence (IPV), as well as examine important sociodemographic, health and social support and network factors that may shape their experiences of abuse. Method National, population-based, cross-sectional survey conducted in 2009. Participants 6859 women reported contact with a current or former partner in the previous 5?years, of whom 1480 reported having experienced emotio...

  11. Budgerigar flight in a varying environment: flight at distinct speeds? (United States)

    Srinivasan, Mandyam V.


    How do flying birds respond to changing environments? The behaviour of budgerigars, Melopsittacus undulatus, was filmed as they flew through a tapered tunnel. Unlike flying insects—which vary their speed progressively and continuously by holding constant the optic flow induced by the walls—the birds showed a tendency to fly at only two distinct, fixed speeds. They switched between a high speed in the wider section of the tunnel, and a low speed in the narrower section. The transition between the two speeds was abrupt, and anticipatory. The high speed was close to the energy-efficient, outdoor cruising speed for these birds, while the low speed was approximately half this value. This is the first observation of the existence of two distinct, preferred flight speeds in birds. A dual-speed flight strategy may be beneficial for birds that fly in varying environments, with the high speed set at an energy-efficient value for flight through open spaces, and the low speed suited to safe manoeuvring in a cluttered environment. The constancy of flight speed within each regime enables the distances of obstacles and landmarks to be directly calibrated in terms of optic flow, thus facilitating simple and efficient guidance of flight through changing environments. PMID:27330173

  12. Conference summaries of the Canadian Nuclear Association 30. annual conference, and the Canadian Nuclear Society 11. annual conference

    International Nuclear Information System (INIS)


    This volume contains conference summaries for the 30. annual conference of the Canadian Nuclear Association, and the 11. annual conference of the Canadian Nuclear Society. Topics of discussion include: energy needs and challenges facing the Canadian nuclear industry; the environment and nuclear power; the problems of maintaining and developing industrial capacity; the challenges of the 1990's; programmes and issues for the 1990's; thermalhydraulics; reactor physics and fuel management; nuclear safety; small reactors; fuel behaviour; energy production and the environment; computer applications; nuclear systems; fusion; materials handling; and, reactor components

  13. F-14 in banked flight (United States)


    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.

  14. Canadian Association of Gastroenterology Clinical Practice Guidelines: The Use of Tumour Necrosis Factor-Alpha Antagonist Therapy in Crohn’s Disease

    Directory of Open Access Journals (Sweden)

    Daniel C Sadowski


    Full Text Available BACKGROUND: Guidelines regarding the use of infliximab in Crohn’s disease were previously published by the Canadian Association of Gastroenterology in 2004. However, recent clinical findings and drug developments warrant a review and update of these guidelines.

  15. Endoscopy training in Canadian general surgery residency programs. (United States)

    Bradley, Nori L; Bazzerelli, Amy; Lim, Jenny; Wu Chao Ying, Valerie; Steigerwald, Sarah; Strickland, Matt


    Currently, general surgeons provide about 50% of endoscopy services across Canada and an even greater proportion outside large urban centres. It is essential that endoscopy remain a core component of general surgery practice and a core competency of general surgery residency training. The Canadian Association of General Surgeons Residents Committee supports the position that quality endoscopy training for all Canadian general surgery residents is in the best interest of the Canadian public. However, the means by which quality endoscopy training is achieved has not been defined at a national level. Endoscopy training in Canadian general surgery residency programs requires standardization across the country and improved measurement to ensure that competency and basic credentialing requirements are met.

  16. Thinking Globally, Acting Locally: Preparing the Canadian Foreign ...

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

    , strengthen the foreign policy community in the national capital region, and include younger professionals in ongoing work. This grant from IDRC will help the National Capital Branch of the Canadian International Council (CIC-NCB) create a ...

  17. Canadian Environments: Essays in Culture, Politics and History

    DEFF Research Database (Denmark)

    Responding to the comprehensive topic 'Old Environments - New Environments', scholars from a variety of disciplines reflect the various connotations that the term 'environment' carries in a Canadian context. Whether moving within the realm of foreign policy, visual arts, constitutional questions...

  18. HR in the Canadian renewable energy sector: HRSDC situational analysis

    International Nuclear Information System (INIS)

    Martin, B.; Ferguson, T.


    This paper outlines the human resources needs in the Canadian renewable energy sector. Emerging energies sector has many skills needs, some of which need to be developed. Emerging energy sector includes wind, solar photovoltaic (PV) and bio energy

  19. Neighborhood crime and adolescent cannabis use in Canadian adolescents

    NARCIS (Netherlands)

    de Looze, Margreet; Janssen, I; Elgar, Frank J.; Craig, Wendy; Pickett, W.


    Although neighbourhood factors have been proposed as determinants of adolescent behaviour, few studies document their relative etiological importance. We investigated the relationship between neighbourhood crime and cannabis use in a nationally representative sample of Canadian adolescents. Data

  20. Guidelines for Evaluation of Canadian Forces Indoor Firing Ranges

    National Research Council Canada - National Science Library

    Severs, Y


    Indoor Firing Ranges (IFR) within DND are typically used by Canadian Forces (CF) personnel, Cadets, RCMP, and civilian organizations for firing small bore weapons in support of both operational/ occupational and recreational requirements...

  1. Canadian Meteorological Centre (CMC) Daily Snow Depth Analysis Data (United States)

    National Aeronautics and Space Administration — This data set consists of Northern Hemisphere snow depth analysis data processed by the Canadian Meteorological Centre (CMC). Snow depth data obtained from surface...

  2. Building Canadian Support for Global Health Research - Phase III ...

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

    supported researcher is receiving international attention for his work to address maternal and child death rates in East Africa. View moreMaternal and child health research featured in Canadian Geographic ...

  3. Putting Canadian entrepreneurship in the global picture | IDRC ...

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


    Nov 14, 2014 ... Through the Global Entrepreneurship Monitor, Canadian and international researchers are capturing and sharing new insights on what motivates entrepreneurs, and how to help them thrive. Their findings give governments solid ground for policies to spur business innovation.

  4. Latin American geo-political struggles in Canadian documentaries production

    Directory of Open Access Journals (Sweden)

    Anelise Reich Corseuil


    Full Text Available This paper analyzes two contemporary Canadian documentaries about Latin American history, specifically the ways in which the films provide an aesthetics of resistance to stereotypical and homogeneous representations of Latin American countries. Canadian documentaries on the history and the people of third world countries not only document Latin American countries but also criticize the conflicting relationships and forms of representation involved in the making of the documentary, revealing the documentary as a narrative form in its making of Latin American subjects and histories. Within this theoretical context, the study here proposed analyses two documentaries about Latin-American geopolitical conflicts. The World is Watching: Inside the News (1988, a British-Canadian production directed by Jim Munro and Peter Raymond, and a Place Called Chiapas, a Canadian production, directed by Nettie Wild (1998.

  5. The Age Structure of Canadian University Teachers and Its Implications. (United States)

    von Zur-Muehlen, Max


    The enrollment pattern, age structure, rank distribution, and salary levels of full time faculty at Canadian universities are examined and their consequences for the present and future are explored. (JMF)

  6. Knee joint laxity in a native Canadian Indian population. (United States)

    Steinitz, Daniel K; Harvey, Edward J; Berry, Gregory K; Reindl, Rudolf; Correa, José A


    Clinical observation of increased laxity has been noted in native Canadians. Comparative studies support the possible relationship between joint hypermobility and the development of osteoarthritis or other joint ailments. If joint laxity predisposes to osteoarthritis, there may be far-reaching consequences to the general Native population. A cohort of 52 Native Canadians (NC) and 52 non-Native Canadians (NNC) were evaluated for knee laxity. All patients had no prior history of knee injury or complaints of symptoms related to knee pathology at the time of the examination. Bilateral knee examination was performed. Objective laxity was measured using the KT-1000 tensiometer. Subjective findings were also recorded. Comparison for instability between the groups (NC and NNC) revealed that the NC group had significantly greater laxity on both right and left sides for all knee ligament grading (p Native Canadian population.

  7. Manufacturing opportunities in the Canadian CANDU and heavy water programs

    International Nuclear Information System (INIS)

    Reny, J.P.

    The volume of business available to Canadian manufacturers of CANDU power plant and heavy water plant components is analyzed over about the next 10 years. Implications of exported nuclear technology and plants are explored. (E.C.B.)

  8. Canadian advanced life support capacities and future directions (United States)

    Bamsey, M.; Graham, T.; Stasiak, M.; Berinstain, A.; Scott, A.; Vuk, T. Rondeau; Dixon, M.


    Canada began research on space-relevant biological life support systems in the early 1990s. Since that time Canadian capabilities have grown tremendously, placing Canada among the emerging leaders in biological life support systems. The rapid growth of Canadian expertise has been the result of several factors including a large and technically sophisticated greenhouse sector which successfully operates under challenging climatic conditions, well planned technology transfer strategies between the academic and industrial sectors, and a strong emphasis on international research collaborations. Recent activities such as Canada's contribution of the Higher Plant Compartment of the European Space Agency's MELiSSA Pilot Plant and the remote operation of the Arthur Clarke Mars Greenhouse in the Canadian High Arctic continue to demonstrate Canadian capabilities with direct applicability to advanced life support systems. There is also a significant latent potential within Canadian institutions and organizations with respect to directly applicable advanced life support technologies. These directly applicable research interests include such areas as horticultural management strategies (for candidate crops), growth media, food processing, water management, atmosphere management, energy management, waste management, imaging, environment sensors, thermal control, lighting systems, robotics, command and data handling, communications systems, structures, in-situ resource utilization, space analogues and mission operations. With this background and in collaboration with the Canadian aerospace industry sector, a roadmap for future life support contributions is presented here. This roadmap targets an objective of at least 50% food closure by 2050 (providing greater closure in oxygen, water recycling and carbon dioxide uptake). The Canadian advanced life support community has chosen to focus on lunar surface infrastructure and not low Earth orbit or transit systems (i.e. microgravity

  9. No. 155-Guidelines for Vaginal Birth After Previous Caesarean Birth. (United States)

    Martel, Marie-Jocelyne; MacKinnon, Catherine Jane


    To provide evidence-based guidelines for the provision of a trial of labour (TOL) after Caesarean section. Fetal and maternal morbidity and mortality associated with vaginal birth after Caesarean (VBAC) and repeat Caesarean section. MEDLINE database was searched for articles published from January 1, 1995, to February 28, 2004, using the key words "vaginal birth after Caesarean (Cesarean) section." The quality of evidence is described using the Evaluation of Evidence criteria outlined in the Report of the Canadian Task Force on the Periodic Health Exam. VALIDATION: These guidelines were approved by the Clinical Practice Obstetrics and Executive Committees of the Society of Obstetricians and Gynaecologists of Canada. Copyright © 2018. Published by Elsevier Inc.

  10. Technology Insertion and Management: Options for the Canadian Forces (United States)


    Technology Insertion and Management : Options for the Canadian Forces Mike Stocker Defence Economics Team Defence R&D Canada... Management Options for the Canadian Forces Mike Stocker Defence Economics Team The reported results, their interpretation, and any...semble indiquer qu’un changement de paradigme est en cours dans la façon dont les militaires élaborent et emploient la technologie à utiliser avec leurs

  11. Plagiarism detection software and academic integrity : the canadian perspective


    Kloda, Lorie A.; Nicholson, Karen


    In 2003, McGill University, a member of the Canadian “G10” research universities, undertook a limited trial of plagiarism detection software in specific undergraduate courses. While it is estimated that 28 Canadian universities and colleges currently use text-matching software , the McGill trial received considerable attention from student, national and international media after a student refused to submit his work to the service and successfully challenged the university’s policy requiring t...

  12. Religiosity and music copyright theft among Canadian Baptist youth


    Fawcett, Bruce G.; Francis, Leslie J.; Henderson, Amanda J.; Robbins, Mandy; Linkletter, Jody


    This study examines the views of 706 Canadian Baptist youth (between the ages of 14 and 18 years) on the moral issue of music copyright theft, and explores the influence on these views of age, sex, Sunday church attendance, personal prayer, personal Bible reading, and conservative Bible believing. The participants were attending Springforth 2005 (a major Canadian Baptist Youth Conference). The data demonstrate a high level of acceptance of music copyright theft, with only 26% of the participa...

  13. The politics of gun control: comparing Canadian and American patterns


    G A Mauser; M Margolis


    In this paper two questions are asked: to what extent do the Canadian and US publics differ in their beliefs about firearms-control legislation, and to what extent do these differences help to account for the stricter firearms legislation found in Canada? Surveys indicate that Canadians and Americans have remarkably similar attitudes towards firearms and gun control. Linear regression is used to analyze the factors that underlie the popular support for (or opposition to) stricter gun-control ...

  14. Proceedings of the Canadian Nuclear Association 35. annual conference

    International Nuclear Information System (INIS)

    Loewer, R.


    The proceedings of the thirty-fifth annual conference of the Canadian Nuclear Association contain 22 papers organized in the following sessions: update on the status of the Canadian nuclear industry, non-proliferation and related political issues, nuclear waste disposal perspectives, regulatory issues, trade development, new markets, economics of nuclear electricity, public acceptance or rejection. In addition one paper from a CNA/CNS special session on nuclear diffraction is included. The individual papers have been abstracted separately

  15. In-flight sleep of flight crew during a 7-hour rest break: implications for research and flight safety. (United States)

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


    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.

  16. Flight Crew Health Stabilization Program (United States)

    Johnston, Smith L.


    This document establishes the policy and procedures for the HSP and is authorized through the Director, Johnson Space Center (JSC). This document delineates the medical operations requirements for the HSP. The HSP goals are accomplished through an awareness campaign and procedures such as limiting access to flight crewmembers, medical screening, and controlling flight crewmember activities. NASA's Human Space Flight Program uses strategic risk mitigation to achieve mission success while protecting crew health and safety. Infectious diseases can compromise crew health and mission success, especially in the immediate preflight period. The primary purpose of the Flight Crew Health Stabilization Program (HSP) is to mitigate the risk of occurrence of infectious disease among astronaut flight crews in the immediate preflight period. Infectious diseases are contracted through direct person-to-person contact, and through contact with infectious material in the environment. The HSP establishes several controls to minimize crew exposure to infectious agents. The HSP provides a quarantine environment for the crew that minimizes contact with potentially infectious material. The HSP also limits the number of individuals who come in close contact with the crew. The infection-carrying potential of these primary contacts (PCs) is minimized by educating them in ways to avoid infections and avoiding contact with the crew if they are or may be sick. The transmission of some infectious diseases can be greatly curtailed by vaccinations. PCs are strongly encouraged to maintain updated vaccinations.

  17. Whither Chinese involvement in the Canadian oil industry

    International Nuclear Information System (INIS)

    Schulz, B.


    Chinese oil companies have become increasingly focused on securing Canadian oil. However, most of the oil sands leases with good geological and economic prospects are owned by Canadian or Canadian subsidiary companies that have proven unwilling to sell future revenue and reserves bases to the Chinese. The opportunity for a trade of Canadian oil assets for improved Chinese market entry has been limited to Husky, which has existing Chinese connections, as well as to global companies such as Exxon, Shell and BP. In May 2005, the Chinese company Sinopec completed a $105 million deal with Calgary-based Synenco and formed a joint venture for oil sands production and an upgrader. Chinese interests are also involved in the Calgary-based Value Creation Group of Companies as well as in BA Energy. Enbridge has recently invested $25 million in the Heartland upgrader project, presumably with the aim of building pipelines to move new products to Asia. The most significant problem for Canadian oil sands companies and the greatest opportunity for Chinese companies involves the utilization of trained Chinese workers for the $100 billion in oil sands construction planned for the next decade. Significant immigration barriers exist for Chinese workers in Canada, and there is a legitimate concern that Chinese workers may want to stay in Canada. It was concluded that while there may be mutual opportunities for collaboration between Chinese and Canadian energy companies, the Alberta government currently faces challenges in work shortages, immigration, and pressures from unions and environmental lobbyists. 1 fig

  18. The representations of work-life balance in Canadian newspapers. (United States)

    Reece, Katherine T; Davis, Jane A; Polatajko, Helene J


    Work-life balance has become a topic of increasing interest in the media as well as a concern among working Canadians. Since print media discourse can both reflect and shape societal values, cultural norms and ideals of workers in this country, it is important to understand this representation and its potential influence on the occupational engagement and life transitions of Canadian workers. Articles from four major Canadian newspapers published between 2003 and 2005 were used as data sources to examine the media construction of "work-life balance". Thematic analysis of 100 articles was performed using a modified affinity diagramming process. Representations within the Canadian print media conveyed both themes pertaining to the perceived experiences of imbalance and balance, as well as, a process of life balance. Obtaining balance was portrayed as an ongoing process during which an individual negotiates and sacrifices in an attempt to achieve his or her ideal level of balance. Environmental expectations and individual practices and perceptions were conveyed as reasons for the success or derailment of balance. The representations of work-life balance found in the Canadian print media were predominantly of professionals, focused on the demands of work and family, and did not appear to be a broad representation of the multiple realities that all Canadians face.

  19. Self-Perceived Eating Habits and Food Skills of Canadians. (United States)

    Slater, Joyce J; Mudryj, Adriana N


    This study identified and described Canadians' self-perceived eating habits and food skills through the use of population-based data. Data from the Canadian Community Health Survey 2013 Rapid Response on Food Skills was used to examine the eating quality and patterns of Canadians. Data were collected from all provinces in January and February 2013. Respondent variables (sex, age, Aboriginal/immigrant status) were examined to assess differentiations between socio-demographic groupings (family structure, marital status, education, and income). Logistic regression was used to determine whether demographic variables increased the likelihood of certain responses. Forty-six percent of Canadians believe they have excellent/very good eating habits, with 51% categorizing their habits as good or fair. Similarly, the majority report having good food skills. Sex and age were significantly associated with food skills, with women rating their cooking skill proficiency higher than men (72% vs 55%), and older Canadians reporting higher food skill knowledge than their younger counterparts. Results indicate that while portions of the Canadian population have adequate food skills, others are lacking, which may negatively impact their diet. Findings from this study have implications for education and health promotion programs focusing on foods skills, particularly among vulnerable target groups. Copyright © 2016 Society for Nutrition Education and Behavior. Published by Elsevier Inc. All rights reserved.

  20. Canadian capabilities in fusion fuels technology and remote handling

    International Nuclear Information System (INIS)


    This report describes Canadian expertise in fusion fuels technology and remote handling. The Canadian Fusion Fuels Technology Project (CFFTP) was established and is funded by the Canadian government, the province of Ontario and Ontario Hydro to focus on the technology necessary to produce and manage the tritium and deuterium fuels to be used in fusion power reactors. Its activities are divided amongst three responsibility areas, namely, the development of blanket, first wall, reactor exhaust and fuel processing systems, the development of safe and reliable operating procedures for fusion facilities, and, finally, the application of these developments to specific projects such as tritium laboratories. CFFTP also hopes to utilize and adapt Canadian developments in an international sense, by, for instance, offering training courses to the international tritium community. Tritium management expertise is widely available in Canada because tritium is a byproduct of the routine operation of CANDU reactors. Expertise in remote handling is another byproduct of research and development of of CANDU facilities. In addition to describing the remote handling technology developed in Canada, this report contains a brief description of the Canadian tritium laboratories, storage beds and extraction plants as well as a discussion of tritium monitors and equipment developed in support of the CANDU reactor and fusion programs. Appendix A lists Canadian manufacturers of tritium equipment and Appendix B describes some of the projects performed by CFFTP for offshore clients

  1. Canadian plans for participation in GSETT 3

    Directory of Open Access Journals (Sweden)

    R. N. North


    Full Text Available The Geological Survey of Canada (GSC is making preparations for Canadian participation in GSETT 3 but will be unable to make a formal commitment until the necessary resources have been secured. As Canada is expected to provide at least four alpha stations, and a significant number of beta stations, the financial resources that will be needed are substantial, even though in many respccts the GSC is, with the recent modernization of the Yellowknife array and the ongoing installation of the Canadian National Seismograph Network (CNSN, well positioned to make a significant contribution to GSETT 3. The CNSN currently (October 1993 consists of 17 broad band stations and will grow to 23 and 33 such stations by December 1993 and December 1994 respectively. Some 40 50 short period stations will complete the network. Data from all sites are continuously telemetered in real time to network acquisition centres in Ottawa and Sidney, British Columbia, archived to optical disk, and kept on line in a 72 h ring buffer. Most of the broadband sites could serve as either alpha or beta stations once the necessary software for continuous data transfer, or on request provision, of data from the selected sites has been completed. This software wili be configured so that changes in station selection are easy to implement, and this will provide considerable flexibility to the GSETT 3 planning and operations working groups in selecting the optimum network. Backup stations can be designated in the case of station failures, and the network centre in British Columbia will serve, at least for beta stations, as a backup NDC to that in Ottawa. Data from. the Yellowknife array are collected in Yellowknife and forwarded in ten minute files to Ottawa, where processing is completed and the results archived. This arrangement would not meet the deadlines for receipt of alpha station data at the IDC and new hardware and software will be needed to forward the data more immediately from

  2. Orion Powered Flight Guidance Burn Options for Near Term Exploration (United States)

    Fill, Tom; Goodman, John; Robinson, Shane


    NASA's Orion exploration spacecraft will fly more demanding mission profiles than previous NASA human flight spacecraft. Missions currently under development are destined for cislunar space. The EM-1 mission will fly unmanned to a Distant Retrograde Orbit (DRO) around the Moon. EM-2 will fly astronauts on a mission to the lunar vicinity. To fly these missions, Orion requires powered flight guidance that is more sophisticated than the orbital guidance flown on Apollo and the Space Shuttle. Orion's powered flight guidance software contains five burn guidance options. These five options are integrated into an architecture based on a proven shuttle heritage design, with a simple closed-loop guidance strategy. The architecture provides modularity, simplicity, versatility, and adaptability to future, yet-to-be-defined, exploration mission profiles. This paper provides a summary of the executive guidance architecture and details the five burn options to support both the nominal and abort profiles for the EM-1 and EM-2 missions.

  3. Assessing refinery capacity and readiness to take Canadian product : is Canadian crude pushing or pulling?

    International Nuclear Information System (INIS)

    Friesner, J.M.


    This presentation addressed some of the challenges facing oil sands production in Canada. Refinery products and refining investments were discussed, as was the impact of alternative crude supply on the markets and pricing of oil sands. The oils sands products discussed include various qualities of sweet synthetic crude oil produced via upgraders; virgin and cracked intermediate products from oil sands upgraders; mined or Steam Assisted Gravity Drainage (SAGD) produced bitumen blended products; and synthetic heavy crude produced via hydrocracking. Products were listed in terms of ease of production, and a rationale for generic ranking was provided. A chart of 2003 characteristics of non-Canadian imports to the mid-west United States was provided. Various marketing strategies for different oil sands products were discussed, as well as issues concerning logistics. Strategies for the development of a bigger market include producer investment in refining capability; the acquisition of refining assets; investment in refiners' upgrading capability; and securing a long term supply deal. Core and extended markets for Western Canadian oil sands products were reviewed. A chart of North American refining capacity was presented. Details of a refinery with both coking and cracking capacity were examined. An increase in hydro processing capacity and expanded coking capacity, as well as an upgrade of metallurgy were suggested as possible upgrading options. Various refinery configurations were discussed in relation to lower cost feedstocks and clean fuels specifications. Issues concerning crude supply were examined with reference to pricing parity points and declines in traditional crude production. Specific supply issues concerning oil sands production were discussed, including transportation costs; adequate refining capacity; and availability of supply. Various logistic investments were considered. A map of BP's 5 U.S. refineries was presented. A forecast of expected changes in

  4. JetStar in flight (United States)


    This 18-second movie clip shows the NASA Dryden Lockheed C-140 JetStar in flight with its pylon-mounted air-turbine-drive system used to gather information on the acoustic characteristics of subscale advanced design propellers. Data was gathered through 28 flush-mounted microphones on the skin of the aircraft. From 1976 to 1987 the NASA Lewis Research Center, Cleveland, Ohio -- today known as the Glenn Research Center -- engaged in research and development of an advanced turboprop concept in partnership with Hamilton Standard, Windsor Locks, Connecticut, the largest manufacturer of propellers in the United States. The Advanced Turboprop Project took its impetus from the energy crisis of the early 1970's and sought to produce swept propeller blades that would increase efficiency and reduce noise. As the project progressed, Pratt & Whitney, Allison Gas Turbine Division of General Motors, General Electric, Gulfstream, Rohr Industries, Boeing, Lockheed, and McDonnell Douglas, among others, also took part. NASA Lewis did the much of the ground research and marshaled the resources of these and other members of the aeronautical community. The team came to include the NASA Ames Research Center, Langley Research Center, and the Ames-Dryden Flight Research Facility (before and after that time, the Dryden Flight Research Center). Together, they brought the propeller to the flight research stage, and the team that worked on the project won the coveted Collier Trophy for its efforts in 1987. To test the acoustics of the propeller the team developed, it mounted propeller models on a C-140 JetStar aircraft fuselage at NASA Dryden. The JetStar was modified with the installation of an air-turbine-drive system. The drive motor, with a test propeller, was mounted on a pylon atop the JetStar. The JetStar was equipped with an array of 28 microphones flush-mounted in the fuselage of the aircraft beneath the propeller. Microphones mounted on the wings and on an accompanying Learjet chase

  5. Word Segmentation in Monolingual Infants Acquiring Canadian English and Canadian French: Native Language, Cross-Dialect, and Cross-Language Comparisons (United States)

    Polka, Linda; Sundara, Megha


    In five experiments, we tested segmentation of word forms from natural speech materials by 8-month-old monolingual infants who are acquiring Canadian French or Canadian English. These two languages belong to different rhythm classes; Canadian French is syllable-timed and Canada English is stress-timed. Findings of Experiments 1, 2, and 3 show that…

  6. Calbindins decreased after space flight. (United States)

    Sergeev, I N; Rhoten, W B; Carney, M D


    Exposure of the body to microgravity during space flight causes a series of well-documented changes in Ca2+ metabolism, yet the cellular and molecular mechanisms leading to these changes are poorly understood. Calbindins, vitamin D-dependent Ca2+ binding proteins, are believed to have a significant role in maintaining cellular Ca2+ homeostasis. In this study, we used biochemical and immunocytochemical approaches to analyze the expression of calbindin-D28k and calbindin-D9k in kidneys, small intestine, and pancreas of rats flown for 9 d aboard the space shuttle. The effects of microgravity on calbindins in rats from space were compared with synchronous Animal Enclosure Module controls, modeled weightlessness animals (tail suspension), and their controls. Exposure to microgravity resulted in a significant and sustained decrease in calbindin-D28k content in the kidney and calbindin-D9k in the small intestine of flight animals, as measured by enzyme-linked immunosorbent assay (ELISA). Modeled weightlessness animals exhibited a similar decrease in calbindins by ELISA. Immunocytochemistry (ICC) in combination with quantitative computer image analysis was used to measure in situ the expression of calbindins in the kidney and the small intestine, and the expression of insulin in pancreas. There was a large decrease of immunoreactivity in renal distal tubular cell-associated calbindin-D28k and in intestinal absorptive cell-associated calbindin-D9k of space flight and modeled weightlessness animals compared with matched controls. No consistent difference in pancreatic insulin immunoreactivity between space flight, modeled weightlessness, and controls was observed. Regression analysis of results obtained by quantitative ICC and ELISA for space flight, modeled weightlessness animals, and their controls demonstrated a significant correlation. These findings after a short-term exposure to microgravity or modeled weightlessness suggest that a decreased expression of calbindins

  7. Molecular analysis of beta-hexosaminidase A (Hex A) deficiency among persons of French Canadian background living in New England

    Energy Technology Data Exchange (ETDEWEB)

    Triggs-Raine, B.; Richard, M.; Wasel, N. [Univ. of Manitoba, Winnepeg (Canada)] [and others


    Tay-Sachs disease (TSD) results from mutations in the HEXA gene that cause Hex A deficiency. Enzyme screening for disease prevention has been applied in the Ashkenazi Jewish and French Canadian populations which have an elevated disease incidence. However, benign mutations that cause Hex A deficiency, but not TSD, complicate enzyme screening programs. While benign mutations account for only about 2% of Jewish carriers, they account for about 36% of non-Jewish enzyme-defined carriers. We have found a carrier frequency of 1/72 (n=1300) among persons of French Canadian background living in New England using an enzyme-based assay. The HEXA gene of these carriers and others was analyzed to determine the molecular basis of Hex A deficiency in this group. DNA samples were tested for common previously identified mutations; samples in which no change was found were screened for uncommon or novel mutations using SSCP analysis. Exons showing mobility shifts were sequenced and most mutations were confirmed by restriction enzyme digestion. Known disease-causing mutations were found in 8 samples (4 had a 7.6 kb deletion found in 80% of French Canadian TSD alleles) and known benign mutations were found in 4 samples. Seven novel mutations (G748A; +18 IVS-10 G-to-A; T1338C; +94 IVS-14 T-to-G; C1164G; +30 IVS-6 T-to-G) were identified; the G748A (Gly250Ser) change was found in 3 samples. The effects of the novel mutations on Hex A is unknown; some are likely polymorphisms. The molecular basis of this carrier population is clearly different from that of French Canadian TSD patients. Screening centers should be aware of the presence of benign mutations in the French Canadian population. Given the frequency of the Gly250Ser mutation, and the fact that it has been detected in a TSD patient, it too may be benign.

  8. Thermal energy storage flight experiments (United States)

    Namkoong, D.


    Consideration is given to the development of an experimental program to study heat transfer, energy storage, fluid movement, and void location under microgravity. Plans for experimental flight packages containing Thermal Energy Storage (TES) material applicable for advanced solar heat receivers are discussed. Candidate materials for TES include fluoride salts, salt eutectics, silicides, and metals. The development of a three-dimensional computer program to describe TES material behavior undergoing melting and freezing under microgravity is also discussed. The TES experiment concept and plans for ground and flight tests are outlined.

  9. Orion Exploration Flight Test Post-Flight Inspection and Analysis (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.


    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.

  10. TRIUMF the home of Canadian subatomic physics

    CERN Document Server

    Poutissou, J M; Gillies, James D


    The acronym for Canada's national laboratory for particle and nuclear physics, TRIUMF, was out of date almost as soon as it was coined. Derived from "TRI-University Meson Facility", it reflected the three universities - British Columbia, Victoria and Simon Fraser that initially conceived the Vancouver laboratory in 1965. Well before the proposal was approved in 1968, however, the University of Alberta had come on board, and today 11 Canadian universities belong to the TRIUMF club. The remainder of the acronym has also become rather misleading, since TRIUMF is now more than a meson facility. The laboratory's current activities include operating the radioactive beam facility, ISAC, and the coordination of Canada's role in the Large Hadron Collider (LHC) project at CERN. The TRIUMF cyclotron was built under the guidance of J Reginald Richardson, who studied under Ernest Lawrence at Berkeley. It produced its first beam in 1974. The cyclotron is literally at the heart of the laboratory, with a meson hall to one si...

  11. Association between obesity and depression in Canadians. (United States)

    Chen, Yue; Jiang, Ying; Mao, Yang


    To determine the age and sex variations in the associations between obesity and depression. This analysis was based on data from 59,652 adults >or=18 years of age in the provinces of Nova Scotia, Quebec, Saskatchewan, Alberta, and British Columbia, who participated in the Canadian Community Health Survey conducted in 2005. The survey included a set of 27 questions about symptoms of depression, which were taken from the Composite International Diagnostic Interview. Based on these questions, depression scores were calculated and used to define depression, which corresponds to a 90% likelihood of a positive diagnosis of major depressive episode. Body weight and height were based on self-report. The prevalence of depression was 5.3% in adults living in the five provinces and was higher in women than in men. People with abnormal body weight tended to have an increased risk of depression. On average, obesity and being underweight were associated with approximately 30% and 40% increases in depression, respectively. Particularly in women, depression was more markedly associated with obesity in the 18-39 year age group (OR 1.67, 95% CI 1.29-2.15) and with being underweight in the 40-59 year age group (OR 2.23, 95% CI 1.45-3.42) than other age groups. Obesity is associated with an increased risk of depression in younger women.

  12. Mental Health Disparities Among Canadian Transgender Youth. (United States)

    Veale, Jaimie F; Watson, Ryan J; Peter, Tracey; Saewyc, Elizabeth M


    This study documented the prevalence of mental health problems among transgender youth in Canada and made comparisons with population-based studies. This study also compared gender identity subgroups and age subgroups (14-18 and 19-25). A nonprobability sample of 923 transgender youth from Canada completed an online survey. Participants were recruited through community organizations, health care settings, social media, and researchers' networks. Mental health measures were drawn from the British Columbia Adolescent Health Survey and the Canadian Community Health Survey. Transgender youth had a higher risk of reporting psychological distress, self-harm, major depressive episodes, and suicide. For example, 65% of transgender 14- to 18-year olds seriously considered suicide in the past year compared with 13% in the British Columbia Adolescent Health Survey, and only a quarter of participants reported their mental health was good or excellent. Transgender boys/men and nonbinary youth were most likely to report self-harm and overall mental health remained stable across age subgroups. Although a notable minority of transgender youth did not report negative health outcomes, this study shows the mental health disparities faced by transgender youth in Canada are considerable. Copyright © 2016 Society for Adolescent Health and Medicine. Published by Elsevier Inc. All rights reserved.

  13. CONFINTEA VI from a Canadian perspective (United States)

    Rubenson, Kjell; Nesbit, Tom


    The 12-yearly International Conferences of Adult Education (CONFINTEA) organised by UNESCO are significant events in the ongoing global dialogues about adult learning and education (ALE) and its role within society. Thus, the latest conference held in Brazil in 2009 offered a major opportunity to consider and review developments about ALE policies and practices worldwide and encouraged both national governments and non-governmental organisations alike to examine their approaches to adult education and lifelong learning. After a review of the process that Canada adopted in following the UNESCO guidelines for preparing its country report, this paper focuses specifically on the involvement of Canada's major academic adult education organisation and details its concerns with both the development and the substance of the report. Comparing it with the country reports of Finland, Sweden and the UK, the authors analyse the Canadian report and provide some explanatory reasons why, in their opinion, both the process and the result provided a less than complete picture of ALE in Canada and, in so doing, fell short of UNESCO's aspirations for CONFINTEA.

  14. Canadian survey on pandemic flu preparations

    Directory of Open Access Journals (Sweden)

    Tracy CS


    Full Text Available Abstract Background The management of pandemic influenza creates public health challenges. An ethical framework, 'Stand on Guard for Thee: ethical considerations in pandemic influenza preparedness' that served as a template for the World Health Organization's global consultation on pandemic planning, was transformed into a survey administered to a random sample of 500 Canadians to obtain opinions on key ethical issues in pandemic preparedness planning. Methods All framework authors and additional investigators created items that were pilot-tested with volunteers of both sexes and all socioeconomic strata. Surveys were telephone administered with random sampling achieved via random digit dialing (RDD. Eligible participants were adults, 18 years or older, with per province stratification equaling provincial percent of national population. Descriptive results were tabulated and logistic regression analyses were used to assess whether demographic factors were significantly associated with outcomes. Results 5464 calls identified 559 eligible participants of whom 88.5% completed surveys. Over 90% of subjects agreed the most important goal of pandemic influenza preparations was saving lives, with 41% endorsing saving lives solely in Canada and 50% endorsing saving lives globally as the highest priority. Older age (OR = 8.51, p Conclusions Results suggest trust in public health officials to make difficult decisions, providing emphasis on reciprocity and respect for individual rights.

  15. Radiocarbon dispersion around Canadian nuclear facilities

    International Nuclear Information System (INIS)

    Milton, G.M.; Kramer, S.J.; Brown, R.M.; Repta, C.J.W.; King, K.J.; Rao, R.R.


    Canadian deuterium uranium (CANDU) pressurized heavy-water reactors produce 14 C by neutron activation of trace quantities of nitrogen in annular gas and reactor components ( 14 N(n,p) 14 C), and from 17 O in the heavy water moderator by ( 17 O(n,α) 14 C). The radiocarbon produced in the moderator is removed on ion exchange resins incorporated in the water purification systems; however, a much smaller gaseous portion is vented from reactor stacks at activity levels considerably below 1% of permissible derived emission limits. Early measurements of the carbon speciation indicated that >90% of the 14 C emitted was in the form of CO 2 .We conducted surveys of the atmospheric dispersion of 14 CO 2 at the Chalk River Laboratories and at the Pickering Nuclear Generating Station. We analyzed air, vegetation, soils and tree rings to add to the historical record of 14 C emissions at these sites, and to gain an understanding of the relative importance of the various carbon pools that act as sources/sinks within the total 14 C budget. Better model parameters than those currently available for calculating the dose to the critical group can be obtained in this manner. Global dose estimates may require the development of techniques for estimating emissions occurring outside the growing season. (author)

  16. Activities of Canadian Satellite Communications, Inc. (United States)


    Canadian Satellite Communications (Cancom) has as its core business the provision of television and radio signals to cable systems in Canada, with the objective of making affordable broadcast signals available to remote and/or small communities. Cancom also provides direct-to-home services to backyard receiving dishes, as well as satellite digital data business communications services, satellite business television, and satellite network services. Its business communication services range from satellite links for big-city businesses with small branch operations located far from major centers, to a mobile messaging and tracking system for the trucking industry. Revenues in 1992 totalled $48,212,000 and net income was just over $7 million. Cancom bought 10 percent interest in Leosat Corp. of Washington, DC, who are seeking approval to operate a position locator network from low-orbit satellites. Cancom has also become a partner in SovCan Star Satellite Communications Inc., which will build an international satellite system in partnership with Russia. The first satellite in this east-west business network will be placed in a Russian orbital slot over the Atlantic by 1996, and a second satellite will follow for the Pacific region. This annual report of Cancom's activities for 1992 includes financial statements and a six year financial review.

  17. Food and eating environments: in Canadian schools. (United States)

    Browning, H Frances; Laxer, Rachel E; Janssen, Ian


    This national study was conducted to examine healthy eating programs, healthy eating education, and the food retail environments of schools. A total of 436 Canadian schools were studied. Administrators completed a questionnaire designed to assess school healthy eating programs, healthy eating education, and food retail environment. The number of chain fast food restaurants, chain cafés/coffee shops, and convenience stores within 1 km of schools was measured using geographic information systems food retailer measures from DMTI Spatial Inc. and the Yellow Pages. During the preceding year, 67% of schools had initiated healthy eating lunch programs while 18% had junk food-free days. The majority of schools offered cooking classes (59%) and healthy eating media literacy education (67%), while a minority offered gardening activities (15%) and field trips to farmers' markets (27%) and grocery stores (36%). Fifty-three percent had a school cafeteria, and most had a school tuck shop (75%) and pop/juice vending machines (76%). Fifty percent had a chain fast food restaurant, 33% had a chain café/coffee shop, and 41% had a convenience store within 1 km. An important aspect of addressing childhood obesity will be improving the food environments of schools and their surrounding neighbourhoods, and providing healthy eating education for all students.

  18. Confidence-building and Canadian leadership

    International Nuclear Information System (INIS)

    Cleminson, F.R.


    Confidence-building has come into its own as a 'tool of choice' in facilitating the non-proliferation, arms control and disarmament (NACD) agenda, whether regional or global. From the Middle East Peace Process (MEPP) to the ASEAN Intersessional Group on Confidence-Building (ARF ISG on CBMS), confidence-building has assumed a central profile in regional terms. In the Four Power Talks begun in Geneva on December 9, 1997, the United States identified confidence-building as one of two subject areas for initial discussion as part of a structured peace process between North and South Korea. Thus, with CBMs assuming such a high profile internationally, it seems prudent for Canadians to pause and take stock of the significant role which Canada has already played in the conceptual development of the process over the last two decades. Since the Helsinki accords of 1975, Canada has developed a significant expertise in this area through an unbroken series of original, basic research projects. These have contributed to defining the process internationally from concept to implementation. Today, these studies represent a solid and unique Departmental investment in basic research from which to draw in meeting Canada's current commitments to multilateral initiatives in the area of confidence-building and to provide a 'step up' in terms of future-oriented leadership. (author)

  19. Asia's new power : opportunities for Canadian petrochemicals

    International Nuclear Information System (INIS)

    Swanson, A.B.


    The structure and outlook of the Asian economy was discussed. In 2004, Japan had the largest share of the Asian gross domestic product (GDP) at 50.5 per cent followed by China at 15.7 per cent. Nexant forecasts that Asian growth will average 5 to 6 per cent inclusive of Japan's mature economy. The presentation included a graph comparing GDP on a purchasing power parity basis and exchange rate basis. It was noted that although China's strong growth is due in part to a stable currency fixed to the US$, there are some underlying concerns regarding efficiency improvements in state owned enterprises, non performing loans, and a lack of transparency in growth statistics and inflation. With consumers driving demand, China is the world's largest importer of petrochemicals and polymers, but the purchasing pattern is erratic. This presentation listed some of the major changes under the World Trade Organization (WTO) and illustrated the important role that trades play in importing polymers. It is expected that imported polymers and petrochemicals may be sold directly to end-users. A graph depicting delivered costs of monoethylene glycol (MEG), excluding tariffs, port charges and internal logistics, indicates that the Middle East is favoured. The implications for Canadian petrochemicals was discussed, given that China is Canada's prime MEG export market. tabs., figs

  20. Medical cannabis – the Canadian perspective (United States)

    Ko, Gordon D; Bober, Sara L; Mindra, Sean; Moreau, Jason M


    Cannabis has been widely used as a medicinal agent in Eastern medicine with earliest evidence in ancient Chinese practice dating back to 2700 BC. Over time, the use of medical cannabis has been increasingly adopted by Western medicine and is thus a rapidly emerging field that all pain physicians need to be aware of. Several randomized controlled trials have shown a significant and dose-dependent relationship between neuropathic pain relief and tetrahydrocannabinol – the principal psychoactive component of cannabis. Despite this, barriers exist to use from both the patient perspective (cost, addiction, social stigma, lack of understanding regarding safe administration) and the physician perspective (credibility, criminality, clinical evidence, patient addiction, and policy from the governing medical colleges). This review addresses these barriers and draws attention to key concerns in the Canadian medical system, providing updated treatment approaches to help clinicians work with their patients in achieving adequate pain control, reduced narcotic medication use, and enhanced quality of life. This review also includes case studies demonstrating the use of medical marijuana by patients with neuropathic low-back pain, neuropathic pain in fibromyalgia, and neuropathic pain in multiple sclerosis. While significant preclinical data have demonstrated the potential therapeutic benefits of cannabis for treating pain in osteoarthritis, rheumatoid arthritis, fibromyalgia, and cancer, further studies are needed with randomized controlled trials and larger study populations to identify the specific strains and concentrations that will work best with selected cohorts. PMID:27757048

  1. Synthesis and validation of flight control for UAV (United States)

    Paw, Yew Chai

    flight control design and architecture used in the UAV autopilot system. Classical and model-based control synthesis approaches are presented for roll angle tracking controller to demonstrate the controller synthesis approaches and practical controller implementation issues on the embedded flight computer system. The last part of work blends in all the previous works into the integrated framework for testing and validation of the synthesized controllers. This involves software-in-the-loop, processor-in-the-loop and flight testing of the synthesized controllers using the integrated framework developed.

  2. Shifting tides in the emigration patterns of Canadian physicians to the United States: a cross-sectional secondary data analysis. (United States)

    Freeman, Thomas R; Petterson, Stephen; Finnegan, Sean; Bazemore, Andrew


    The relative ease of movement of physicians across the Canada/US border has led to what is sometimes referred to as a 'brain drain' and previous analysis estimated that the equivalent of two graduating classes from Canadian medical schools were leaving to practice in the US each year. Both countries fill gaps in physician supply with international medical graduates (IMGs) so the movement of Canadian trained physicians to the US has international ramifications. Medical school enrolments have been increased on both sides of the border, yet there continues to be concerns about adequacy of physician human resources. This analysis was undertaken to re-examine the issue of Canadian physician migration to the US. We conducted a cross-sectional analysis of the 2015 American Medical Association (AMA) Masterfile to identify and locate any graduates of Canadian schools of medicine (CMGs) working in the United States in direct patient care. We reviewed annual reports of the Canadian Resident Matching Service (CaRMS); the Canadian Post-MD Education Registry (CAPER); and the Canadian Collaborative Centre for Physician Resources (C3PR). Beginning in the early 1990s the number of CMGs locating in the U.S. reached an all-time high and then abruptly dropped off in 1995. CMGs are going to the US for post-graduate training in smaller numbers and, are less likely to remain than at any time since the 1970's. This four decade retrospective found considerable variation in the migration pattern of CMGs to the US. CMGs' decision to emigrate to the U.S. may be influenced by both 'push' and 'pull' factors. The relative strength of these factors changed and by 2004, more CMGs were returning from abroad than were leaving and the current outflow is negligible. This study supports the need for medical human resource planning to assume a long-term view taking into account national and international trends to avoid the rapid changes that were observed. These results are of importance to medical

  3. A flight investigation of static stability, control augmentation, and flight director influences on helicopter IFR handling qualities (United States)

    Lebacqz, J. V.; Weber, J. M.; Corliss, L. D.


    A flight experiment was conducted using the NASA-Army V/STOLAND UH-1H variable-stability helicopter to investigate the influence of several longitudinal-static-stability, control-augmentation, and flight-director parameters on helicopter flying qualities during terminal area operations in instrument conditions. This experiment, which was part of a joint NASA/FAA program pertaining to helicopter IFR airworthiness, was designed to corroborate and extend previous ground simulation results obtained in this program. Variations examined included stable and neutral longitudinal control position gradients, rate-damping and attitude-command augmentation, and raw data versus flight-director displays. Pilot rating results agreed excellently with the ground simulation data, indicating an adequate instrument capability with rate-damping augmentation and neutral statics and the need for pitch-roll attitude augmentation to achieve a satisfactory system.

  4. Flight in slow motion: aerodynamics of the pterosaur wing. (United States)

    Palmer, Colin


    The flight of pterosaurs and the extreme sizes of some taxa have long perplexed evolutionary biologists. Past reconstructions of flight capability were handicapped by the available aerodynamic data, which was unrepresentative of possible pterosaur wing profiles. I report wind tunnel tests on a range of possible pterosaur wing sections and quantify the likely performance for the first time. These sections have substantially higher profile drag and maximum lift coefficients than those assumed before, suggesting that large pterosaurs were aerodynamically less efficient and could fly more slowly than previously estimated. In order to achieve higher efficiency, the wing bones must be faired, which implies extensive regions of pneumatized tissue. Whether faired or not, the pterosaur wings were adapted to low-speed flight, unsuited to marine style dynamic soaring but adapted for thermal/slope soaring and controlled, low-speed landing. Because their thin-walled bones were susceptible to impact damage, slow flight would have helped to avoid injury and may have contributed to their attaining much larger sizes than fossil or extant birds. The trade-off would have been an extreme vulnerability to strong or turbulent winds both in flight and on the ground, akin to modern-day paragliders.

  5. Factors associated with the grief after stillbirth: a comparative study between Brazilian and Canadian women

    Directory of Open Access Journals (Sweden)

    Gisele Ferreira Paris

    Full Text Available Abstract OBJECTIVE To verify the association between complicated grief and sociodemographic, reproductive, mental, marital satisfaction, and professional support characteristics in women after stillbirth. METHOD Cross-sectional study with 26 women who had stillbirth in 2013, living in the city of Maringá, Brazil, and eight women who attended the Centre d'Études et de Rechercheen Intervention Familiale at the University of Quebec en Outaouais, in Canada. The instrument was administered as an interview to a small number of mothers of infants up to three months (n=50, who did not participate in the validation study. RESULTS By applying the short version of the Perinatal Grief Scale, the prevalence of complicated grief in Brazilian women was found to be higher (35% in relation to Canadian women (12%.Characteristics of the Brazilian women associated with the grief period included the presence of previous pregnancy with live birth, absence of previous perinatal loss, postpartum depression, and lack of marital satisfaction. For the Canadians it was observed that 80% of the women presenting no grief made use of the professional support group. In both populations the occurrence of complicated grief presented a higher prevalence in women with duration of pregnancy higher than 28 weeks. CONCLUSION The women that must be further investigated during the grief period are those living in Brazil, making no use of a professional support group, presenting little to no marital satisfaction, having no religion, and of a low educational level.

  6. Vision based flight procedure stereo display system (United States)

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


    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.

  7. 22 CFR 40.91 - Certain aliens previously removed. (United States)


    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Certain aliens previously removed. 40.91... IMMIGRANTS UNDER THE IMMIGRATION AND NATIONALITY ACT, AS AMENDED Aliens Previously Removed § 40.91 Certain aliens previously removed. (a) 5-year bar. An alien who has been found inadmissible, whether as a result...

  8. Aurora Flight Sciences' Perseus B Remotely Piloted Aircraft in Flight (United States)


    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

  9. Determining root correspondence between previously and newly detected objects (United States)

    Paglieroni, David W.; Beer, N Reginald


    A system that applies attribute and topology based change detection to networks of objects that were detected on previous scans of a structure, roadway, or area of interest. The attributes capture properties or characteristics of the previously detected objects, such as location, time of detection, size, elongation, orientation, etc. The topology of the network of previously detected objects is maintained in a constellation database that stores attributes of previously detected objects and implicitly captures the geometrical structure of the network. A change detection system detects change by comparing the attributes and topology of new objects detected on the latest scan to the constellation database of previously detected objects.

  10. Elevation Changes of Ice Caps in the Canadian Arctic Archipelago (United States)

    Abdalati, W.; Krabill, W.; Frederick, E.; Manizade, S.; Martin, C.; Sonntag, J.; Swift, R.; Thomas, R.; Yungel, J.; Koerner, R.


    Precise repeat airborne laser surveys were conducted over the major ice caps in the Canadian Arctic Archipelago in the spring of 1995 and 2000 in order to measure elevation changes in the region. Our measurements reveal thinning at lower elevations (below 1600 m) on most of the ice caps and glaciers, but either very little change or thickening at higher elevations in the ice cap accumulation zones. Recent increases in precipitation in the area can account for the slight thickening where it was observed, but not for the thinning at lower elevations. For the northern ice caps on the Queen Elizabeth Islands, thinning was generally less than 0.5 m/yr , which is consistent with what would be expected from the warm temperature anomalies in the region for the 5-year period between surveys and appears to be a continuation of a trend that began in the mid 1980s. Further south, however, on the Barnes and Penny ice caps on Baffin Island, this thinning was much more pronounced at over 1 m/yr in the lower elevations. Here temperature anomalies were very small, and the thinning at low elevations far exceeds any associated enhanced ablation. The observations on Barnes, and perhaps Penny are consistent with the idea that the observed thinning is part of a much longer term deglaciation, as has been previously suggested for Barnes Ice Cap. Based on the regional relationships between elevation and elevation-change in our data, the 1995-2000 mass balance for the region is estimated to be 25 cu km/yr of ice, which corresponds to a sea level increase of 0.064 mm/ yr . This places it among the more significant sources of eustatic sea level rise, though not as substantial as Greenland ice sheet, Alaskan glaciers, or the Patagonian ice fields.

  11. Preadaptive Stage for Flight Origin

    Directory of Open Access Journals (Sweden)

    Bogdanovich I. A.


    Full Text Available Bipedalism as a preadaptive stage for bird’s flight is considered. We attribute the formation of full bipedalism in bird ancestors with pelvic limbs transition from segmental to parasagittal position. This transition was fast enough. We can assume that the pectoral limbs freed from the support remained while laterally spaced and gave set of transformations with different degrees of reduction. Thus morphologically “winglike” version of the thoracic limbs could appear. Parasagittal pelvic limbs allowed birds ancestors fast and maneuverable running, while the movements of free and highly movable thoracic limbs (feathered unrelated to flight provided dynamic stability of the animal. In addition, their fluttering movements facilitate hopping from one branch to another and the descent from the trees. On the bottom branches protobirds could jump with perching just by the pelvic anisodactyl limbs, not by thoracic as had supposed earlier. Active interaction of the primary simple feathers with air as well as its protective function could become an impetus for their transformation into differentiated structures. Unlike gliding (as preadaptive stage for active flight bipedalism with free feathered forelimbs provides per se parallel development of two autonomous enough locomotor systems of birds (flight and terrestrial locomotion and extensive adaptive radiation of representatives of the class.

  12. Aerodynamic Simulation of Indoor Flight (United States)

    De Leon, Nelson; De Leon, Matthew N.


    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)…

  13. Bat Flight and Zoonotic Viruses

    Centers for Disease Control (CDC) Podcasts


    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. Bird Flight and Satish Dhawan

    Indian Academy of Sciences (India)

    One day out of the great wilderness of the water there came an albatross. Circling the ship on .... and mathematicians. Conventional aerodynamic ... suspended in air has inspired over a dozen aerodynamic models. GENERAL I ARTICLE scaling concepts fail to explain subtle features of bird flight, as debated by over fifty ...

  15. Local sampling for indoor flight

    NARCIS (Netherlands)

    De Croon, G.C.H.E.; De Wagter, C.; Remes, B.D.W.; Ruijsink, H.M.


    A challenging problem in artificial intelligence is to achieve vision-based autonomous indoor flight with Micro Air Vehicles. Approaches to this problem currently do not make use of image appearance features, because these features generally are computationally expensive. In this article, we deliver

  16. ALICE Time Of Flight Detector

    CERN Multimedia

    Alici, A


    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.

  17. Bird Flight and Satish Dhawan

    Indian Academy of Sciences (India)

    business opportunities for universities, laboratories and corpo- rations. Modern scientists seem to be getting increasingly ob- sessed with seasonal and sensational .... around SHAR and the Nelapattu Sanctuary, Professor Dhawan distilled the essence of bird flight for the expert and the neo- phyte alike. The sheer biometric ...

  18. In-flight turbulence benefits soaring birds (United States)

    Mallon, Julie M.; Bildstein, Keith L.; Katzner, Todd E.


    Birds use atmospheric updrafts to subsidize soaring flight. We observed highly variable soaring flight by Black Vultures (Coragyps atratus) and Turkey Vultures (Cathartes aura) in Virginia, USA, that was inconsistent with published descriptions of terrestrial avian flight. Birds engaging in this behavior regularly deviated vertically and horizontally from linear flight paths. We observed the soaring flight behavior of these 2 species to understand why they soar in this manner and when this behavior occurs. Vultures used this type of soaring mainly at low altitudes (birds because it permits continuous subsidized flight when other types of updraft are not available.

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

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


    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. Canadian paediatricians' opinions on rotavirus vaccination. (United States)

    Dubé, E; Gilca, V; Sauvageau, C; Bradet, R; Bettinger, J A; Boulianne, N; Boucher, F D; McNeil, S; Gemmill, I; Lavoie, F


    Rotavirus is the leading cause of dehydration and hospitalization due to gastroenteritis (GE) in young children. Almost all children are affected by the age of 5 years. Two safe and effective rotavirus vaccines are available for clinical use in Canada. In the context where rotavirus vaccination is recommended, but not publicly funded, we have assessed paediatricians' knowledge, attitudes and beliefs (KAB) regarding rotavirus disease and its prevention by vaccination. A self-administered anonymous questionnaire based upon the Health Belief Model and the Analytical framework for immunization programs was mailed to all 1852 Canadian paediatricians. The response rate was 50%. The majority of respondents rated consequences of rotavirus infection for young patients as moderate. Sixty-six percent considered that rotavirus disease occur frequently without vaccination and 62% estimated that the disease generates a significant economic burden. Sixty-nine percent of respondents considered rotavirus vaccines to be safe and 61%, to be effective. The reduction of severe GE cases was seen as the main benefit of rotavirus vaccination, while the risk of adverse events was the principal perceived barrier. Fifty-three percent (53%) indicated a strong intention to recommend rotavirus vaccines. In multivariate analysis, main determinant of paediatricians' intention to recommend rotavirus vaccines was the perceived health and economic burden of rotavirus diseases (partial R(2)=0.49, p<0.0001). More than half of surveyed paediatricians were willing to recommend rotavirus vaccines to their patients, but the proportion of respondents who had a strong intention to do so remains low when compared to several other new vaccines. As with other new vaccines, rotavirus vaccine uptake risks to remain low in Canada as long as it is not publicly funded. Copyright © 2011 Elsevier Ltd. All rights reserved.

  1. Canadian study of cancer following multiple fluoroscopies

    International Nuclear Information System (INIS)

    Howe, G.R.


    Records of patients treated in Canadian Sanatoria during the period 1930-1952 have been linked with the National Death Index maintained by Statistics Canada to provide fact and cause of death information for the years 1950-1980. Of 31,710 women known to be under observation on January 1, 1950, 13,795 were exposed to fluoroscopy for control of collapse therapy, while the remaining 17,915 were unexposed. The unexposed had the similar mortality from breast cancer to that expected from general population rates. Those exposed to fluoroscopy had increasing mortality with increasing radiation dose to the breast, the best fit to the dose-response curve being a quadratic function. Estimates of risk at doses above 300 rads were largely derived from patients treated in Nova Scotia, where fluoroscopy was administered antero-posterior, as distinct from the more usual postero-antero practiced elsewhere. There is evidence of age-related susceptibility to radiation-induced breast cancer. The risk was maximal for those who first received fluoroscopy in their teens or twenties, but it was similar to expectation for those first exposed at age 30 or more. The latent period from onset of exposure to first increase in the death rate from breast cancer was 15 years for those first exposed at ages 10-24 and 10 years for those first exposed at ages 25 or more. However, these periods coincide with years when mortality from breast cancer normally rises and may therefore not be a true latent period effect. Estimates of predicted excess deaths from breast cancer per million women first exposed at ages 10-29 vary depending on the model used to represent the effect and whether or not data from the Nova Scotia Series are included in the computations

  2. Canadian Experience in Nuclear Power Technology Transfer

    International Nuclear Information System (INIS)

    Boulton, J.


    Technology transfer has and will continue to play a major role in the development of nuclear power programs. From the early beginnings of the development of the peaceful uses of nuclear power by just a few nations in the mid-1940s there has been a considerable transfer of technology and today 34 countries have nuclear programs in various stages of development. Indeed, some of the major nuclear vendors achieves their present position through a process of technology transfer and subsequent development. Canada, one of the early leaders in the development of nuclear power, has experience with a wide range of programs bout within its own borders and with other countries. This paper briefly describes this experience and the lessons learned from Canada's involvement in the transfer of nuclear power technology. Nuclear technology is complex and diverse and yet it can be assimilated by a nation given a fire commitment of both suppliers and recipients of technology to achieve success. Canada has reaped large benefits from its nuclear program and we believe this has been instrumentally linked to the sharing of goals and opportunity for participation over extended periods of time by many interests within the Canadian infrastructure. While Canada has accumulated considerable expertise in nuclear technology transfer, we believe there is still much for US to learn. Achieving proficiency in any of the many kinds of nuclear related technologies will place a heavy burden on the financial and human resources of a nation. Care must be taken to plan carefully the total criteria which will assure national benefits in industrial and economic development. Above all, effective transfer of nuclear technology requires a long term commitment by both parties

  3. Physical Activity, Physical Fitness, and Body Composition of Canadian Shift Workers: Data From the Canadian Health Measures Survey Cycles 1 and 2. (United States)

    Neil-Sztramko, Sarah E; Gotay, Carolyn C; Demers, Paul A; Campbell, Kristin L


    The aim of the study was to compare objectively measured physical activity, sedentary time, physical fitness, and body composition in shift workers (SWs) with those who work regular days. Population-based, cross-sectional data from the Canadian Health Measures Survey (n = 4323) were used. Univariate and multivariate linear and logistic regression models were used to compare outcomes between SWs and day workers. In unweighted analyses, SWs were more likely to have poor body composition, although had fewer minutes per week of sedentary time. Despite no differences in physical activity, SWs had a lower aerobic capacity. In weighted analyses, only differences in aerobic capacity were observed. This analysis confirms previous findings that SWs have poorer body composition than day workers, and suggest that SWs may need to engage in more physical activity to achieve the same aerobic capacity as day workers.

  4. The turning black tide : energy prices and the Canadian dollar

    International Nuclear Information System (INIS)

    Issa, R.; Lafrance, R.; Murray, J.


    This paper examined the relationship between energy prices and the Canadian-United States dollar real exchange rate. The researchers evaluated the standard Amano-van Norden (AvN) equation formulated to demonstrate that higher real energy prices lead to a depreciation of the Canadian dollar. Major developments in the Canadian energy market were discussed, as well as policy initiatives designed to address Canada's trade balance by increasing energy exports. The study examined the AvN equation using Monte Carlo experiments to determine the parameter stability of the equation. Results indicated that the co-integrating relationship in the standard AvN equation were no longer supported. Structural break tests were used to demonstrate that major changes in Canada's energy policies and cross-border trade and investment strategies have led to an increase in the Canadian dollar's value when energy prices are high. The study presented a new equation designed to account for Canadian dollar's appreciation since 2003. It was concluded that net energy exports in the 1990s outweighed the negatives associated with Canada's energy-intensive production processes. 39 refs., 6 tabs., 10 figs

  5. Women and nuclear issues: Comments in a Canadian perspective

    International Nuclear Information System (INIS)

    Dionne-Marsolais, Rita


    When the Canadian Nuclear industry launched its information program, it was found that women were less supportive of nuclear power. Reasons were difficult to pin-point and hovered around individual perceptions and misunderstandings. The basis of the Canadian Nuclear Association Public Information program lies with its target: men and women equally. The Program Takes Into Consideration The major characteristics and nuances of these two groups. Female Characteristics from Canadian Perspective are: Strong sense of generation continuity; Detail and task oriented; Nontechnical training; Strong sense of individuality (local). Patterns of behavoiur in relation to nuclear industry for women in Canada are: not prone to take risks; micro-economic approach to decisions (local); little confidence in technology; pragmatic and balanced in their choices (local). Major concerns of Canadian women are: Safety of power plants; disposal of waste; peace and environment versus growth and energy need; trustworthiness of the industry. Canadian nuclear association public information program communirations -approach covers: the right message, down to earth language, factual and real information for real choices, effective reach: spokespeople and media buy. Results of polls: show thtt women are less in favour of Nuclear energy in Canada today than men, consider NPPs less important in Meeting Canada's energy need in the years ahead; and think that Nuclear Energy is not a choice for Canada of all sources of energy available for large scale use

  6. Training oncoplastic breast surgeons: the Canadian fellowship experience (United States)

    Maxwell, J.; Arnaout, A.; Hanrahan, R.; Brackstone, M.


    Background Oncoplastic breast surgery combines traditional oncologic breast conservation with plastic surgery techniques to achieve improved aesthetic and quality-of-life outcomes without sacrificing oncologic safety. Clinical uptake and training remain limited in the Canadian surgical system. In the present article, we detail the current state of oncoplastic surgery (ops) training in Canada, the United States, and worldwide, as well as the experience of a Canadian clinical fellow in ops. Methods The clinical fellow undertook a 9-month audit of breast surgical cases. All cases performed during the fellow’s ops fellowship were included. The fellowship ran from October 2015 to June 2016. Results During the 9 months of the fellowship, 67 mastectomies were completed (30 simple, 17 modified radical, 12 skin-sparing, and 8 nipple-sparing). The fellow participated in 13 breast reconstructions. Of 126 lumpectomies completed, 79 incorporated oncoplastic techniques. Conclusions The experience of the most recent ops clinical fellow suggests that Canadian ops training is feasible and achievable. Commentary on the current state of Canadian ops training suggests areas for improvement. Oncoplastic surgery is an important skill for breast surgical oncologists, and access to training should be improved for Canadian surgeons. PMID:29089810

  7. Mining Legal and Business Resources on Canadian Banking

    Directory of Open Access Journals (Sweden)

    Rajiv Johal


    Full Text Available Given the distinct nature of the Canadian banking system, it is important for novice researchers to know which business and legal resources to consult in order to quickly find information that is particular to Canadian banking. However, there are very few articles or monographs in the library literature that describe how to find information sources exclusively on this subject from a Canadian perspective. Most available publications tend to specialize in sources for the US banking and Federal Reserve System with little attention to Canada. The paper begins with a brief introduction to Canadian banking. From there, the authors demonstrate where researchers can find primary sources such as legislation, regulations and case law. In addition, this article identifies and discusses the different types of information found on the websites of associations and government agencies such as the Office of the Superintendent of Financial Institutions, which supervises and regulates various areas of Canada’s financial system. Also discussed are secondary sources such as industry research and reports that are available from reliable websites and subscription-based resources. This paper also explores the best business and legal databases for researchers. Based on results from searching in periodical directories and indexes, the paper additionally provides a description of the most pertinent academic, trade and general publications relevant to the Canadian banking system and where their contents are indexed.

  8. Qualitative Functional Decomposition Analysis of Evolved Neuromorphic Flight Controllers

    Directory of Open Access Journals (Sweden)

    Sanjay K. Boddhu


    Full Text Available In the previous work, it was demonstrated that one can effectively employ CTRNN-EH (a neuromorphic variant of EH method methodology to evolve neuromorphic flight controllers for a flapping wing robot. This paper describes a novel frequency grouping-based analysis technique, developed to qualitatively decompose the evolved controllers into explainable functional control blocks. A summary of the previous work related to evolving flight controllers for two categories of the controller types, called autonomous and nonautonomous controllers, is provided, and the applicability of the newly developed decomposition analysis for both controller categories is demonstrated. Further, the paper concludes with appropriate discussion of ongoing work and implications for possible future work related to employing the CTRNN-EH methodology and the decomposition analysis techniques presented in this paper.

  9. Flight to Safety from European Stock Markets

    DEFF Research Database (Denmark)

    Aslanidis, Nektarios; Christiansen, Charlotte

    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......-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...

  10. F-15 IFCS Intelligent Flight Control System (United States)

    Bosworth, John T.


    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.

  11. Core Flight System Satellite Starter Kit (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...

  12. Optimized Lift for Autonomous Formation Flight (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...

  13. Fighter aircraft flight control technology design requirements (United States)

    Nelson, W. E., Jr.


    The evolution of fighter aircraft flight control technology is briefly surveyed. Systems engineering, battle damage considerations for adaptive flutter suppression, in-flight simulation, and artificial intelligence are briefly discussed.


    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...

  15. Flight Activity and Crew Tracking System - (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...

  16. Free Flight Rotorcraft Flight Test Vehicle Technology Development (United States)

    Hodges, W. Todd; Walker, Gregory W.


    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 (United States)

    Karmali, Faisal; Shelhamer, Mark


    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. Future Career Plans and Practice Patterns of Canadian Obstetrics and Gynaecology Residents in 2011. (United States)

    Burrows, Jason; Coolen, Jillian


    The practice patterns of Obstetricians and Gynaecologists continue to evolve with each new generation of physicians. Diversifying subspecialties, changes in resident duty hours, job market saturation, and desire for work-life balance are playing stronger roles. Professional practice direction and needs assessment may be aided by awareness of future Obstetrics and Gynaecology physician career plans and expectations. The objective of this study was to determine the expected career plans and practice patterns of Canadian Obstetrics and Gynaecology residents following residency. The SOGC Junior Member Committee administered its third career planning survey to Canadian Obstetrics and Gynaecology residents electronically in December 2011. The data collected was statistically analyzed and compared to previous surveys. There were 183 responses giving a response rate of 43%. More than one half of all residents were considering postgraduate training (58%). Projected practice patterns included: 84% maintaining obstetrical practice, 60% locuming, and 50% job-sharing. The majority of residents expected to work in a 6 to 10 person call group (48%), work 3 to 5 call shifts per month (72%), work 41 to 60 hours weekly (69%), and practise in a city with a population greater than 500 000 (45%). Only 18% of residents surveyed were in favour of streaming residency programs in Obstetrics and Gynaecology. Canadian resident career plan and expected practice pattern assessment remains an important tool for aiding in resource allocation and strategic development of care and training in Obstetrics and Gynaecology in Canada. Copyright © 2016 Society of Obstetricians and Gynaecologists of Canada. Published by Elsevier Inc. All rights reserved.

  19. Views of Canadian Patients on or Nearing Dialysis and Their Caregivers: A Thematic Analysis

    Directory of Open Access Journals (Sweden)

    Lianne Barnieh


    Full Text Available Background: Quality of life of patients receiving dialysis has been rated as poor. Objective: To synthesize the views of Canadian patients on or nearing dialysis, and those who care for them. Design: Secondary analysis of a survey, distributed through dialysis centres, social media and the Kidney Foundation of Canada. Setting: Pan-Canadian convenience sample. Participants: Patients, their caregivers and health-care providers. Measurements: Text responses to open-ended questions on topics relevant to end-stage renal disease. Methods: Statements related to needs, beliefs or feelings were identified, and were analysed by thematic content analysis. Results: A total of 544 relevant statements from 189 respondents were included for the thematic content analysis. Four descriptive themes were identified through the content analysis: gaining knowledge, maintaining quality of life, sustaining psychosocial wellbeing and ensuring appropriate care. Respondents primarily identified a need for more information, better communication, increased psychosocial and financial support for patients and their families and a strong desire to maintain their previous lifestyle. Limitations: Convenience sample; questions were originally asked with a different intent (to identify patient-important research issues. Conclusions: Patients on or nearing dialysis and their caregivers identified four major themes, gaining knowledge, maintaining quality of life, sustaining psychosocial wellbeing and ensuring appropriate care, several of which could be addressed by the health care system without requiring significant resources. These include the development of patient materials and resources, or sharing of existing resources across Canadian renal programs, along with adopting better communication strategies. Other concerns, such as the need for increased psychosocial and financial support, require consideration by health care funders.

  20. Critical Appraisal Skills Among Canadian Obstetrics and Gynaecology Residents: How Do They Fare? (United States)

    Bougie, Olga; Posner, Glenn; Black, Amanda Y


    Evidence-based medicine has become the standard of care in clinical practice. In this study, our objectives were to (1) determine the type of epidemiology and/or biostatistical training being given in Canadian obstetrics and gynaecology post-graduate programs, (2) determine obstetrics and gynaecology residents' level of confidence with critical appraisal, and (3) assess knowledge of fundamental biostatistical and epidemiological principles among Canadian obstetrics and gynaecology trainees. During a national standardized in-training examination, all Canadian obstetrics and gynaecology residents were invited to complete an anonymous cross-sectional survey to determine their levels of confidence with critical appraisal. Fifteen critical appraisal questions were integrated into the standardized examination to assess critical appraisal skills objectively. Primary outcomes were the residents' level of confidence interpreting biostatistical results and applying research findings to clinical practice, their desire for more biostatistics/epidemiological training in residency, and their performance on knowledge questions. A total of 301 of 355 residents completed the survey (response rate=84.8%). Most (76.7%) had little/no confidence interpreting research statistics. Confidence was significantly higher in those with increased seniority (OR=1.93), in those who had taken a previous epidemiology/statistics course (OR=2.65), and in those who had prior publications (OR=1.82). Many (68%) had little/no confidence applying research findings to clinical practice. Confidence increased significantly with increasing training year (Pobstetrics and gynaecology residents may have the biostatistical and epidemiological knowledge to interpret results published in the literature, but lack confidence applying these skills in clinical settings. Most residents want additional training in these areas, and residency programs should include training in formal curriculums to improve their