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Sample records for halley watch amateur

  1. International Halley watch amateur observers' manual for scientific comet studies. Part 1: Methods

    Science.gov (United States)

    Edberg, S. J.

    1983-01-01

    The International Halley Watch is described as well as comets and observing techniques. Information on periodic Comet Halley's apparition for its 1986 perihelion passage is provided. Instructions are given for observation projects valuable to the International Halley Watch in six areas of study: (1) visual observations; (2) photography; (3) astrometry; (4) spectroscopic observations; (5) photoelectric photometry; and (6) meteor observations.

  2. International Halley Watch: Discipline specialists for near-nucleus studies

    Science.gov (United States)

    Larson, S.; Sekanina, Z.; Rahe, J.

    1986-01-01

    The purpose of the Near-Nucleus Studies Net is to study the processes taking place in the near-nucleus environment as they relate to the nature of nucleus. This is accomplisghed by measuring the spatial and temporal distribution of dust, gases and ions in the coma on high resolution images taken from many observatories around the world. By modeling the motions of discrete dust features in Comet Halley, it is often possible to determine the locations of the emission sources on the surface and learn about the nucleus structure. In addition to the general goals shared by all IHW nets, the scientific goals of the net has been to determine (1)the gross surface structure of the nucleus, (2)the nucleus spin vector, (3)the distribution and evolution of jet sources and (4)the interrelationships between the gas, dust and ion components of the coma. An additional Comet Giacobini-Zinner watch was carried out by the NNSN in support of the NASA International Cometary Explorer flyby.

  3. International Halley Watch: Discipline specialists for spectroscopy and spectrophotometry

    Science.gov (United States)

    Wyckoff, S.; Feston, M. C.; Wehinger, P.

    1986-01-01

    Spectroscopic observations of Comets P/Crommelin, P/Giacobini-Zinner and P/Halley are coordinated, preliminary results are delivered to the astronomical community and the data collected from observers throughout the world are archived. The ASU IHW Center has the additional responsibility of maintaining the IHW Electronic Bulletin Board which reports real-time information on the status of Comet P/Halley. Access to this electronic bulletin board via telephone modem connection is available to any astronomer upon request.

  4. IHW COMET HALLEY LSPN NON-DIGITIZED IMAGES V1.0

    Data.gov (United States)

    National Aeronautics and Space Administration — NASA's International Halley Watch (IHW) has created a Comet Halley Archive. The collection of data spans the full wavelength range as submitted by scientists to the...

  5. Near-nucleus optical observations of P/Halley

    International Nuclear Information System (INIS)

    Larson, S.M.

    1987-01-01

    The Near-Nucleus Studies Net of the International Halley Watch has obtained an extensive series of high resolution optical images of P/Halley during its most active phases in 1985-86 which may be useful in interpreting radio observations of Comet Halley. They often show coma structure resulting from anisotropic emission of dust and gas from the inhomogeneous nucleus. Images were obtained in broadband spectral regions to study dust coma morphology, and in medium to narrow spectral bands to isolate the principal emissions of CN, C 3 , C 2 , CO + and H 2 O + . The goals and methods of near-nucleus studies are discussed and recent studies of 1910 images are briefly reviewed. The role of dust jets and cometary activity in P/Halley is discussed and several examples of anisotropic emission of dust during the current apparition are shown. 12 references

  6. The exploration of Halley's comet - An example of international cooperation

    Science.gov (United States)

    Rahe, Jurgen H.; Newburn, Ray L., Jr.

    1987-01-01

    The history of international cooperation in studies of comets started with observations in 1577 and 1680, when Tycho Brahe and Newton, respectively, collected position measurements made in different countries to determine the paths of the comets observed. In the fall of 1979, a worldwide Comet Halley watch was proposed. As a result of international cooperation, Comet Halley was explored during its recent appearance from the ground, earth orbit, Venus orbit, interplanetary space, and from within the comet itself. The various activities in space were coordinated by the ESA, the USSR Intercosmos, the Japanese ISAS, and NASA, through the Inter-Agency Consultative Group. The activities of the ground-based observers were coordinated by the International Halley Watch.

  7. Halley's Comet: A Bibliography.

    Science.gov (United States)

    Freitag, Ruth S., Comp.

    Included in this bibliography are over 3,200 references to publications on Halley's Comet, its history, orbital motion, and physical characteristics, meteor streams associated with it, preparations for space missions to study it in 1986, and popular reaction to its appearances. Also cited are a few papers that, although they devote little…

  8. The amateur astronomer

    CERN Document Server

    Moore, Patrick

    2006-01-01

    Introduces astronomy and amateur observing together. This edition includes photographs and illustrations. The comprehensive appendices provide hints and tips, as well as data for every aspect of amateur astronomy. This work is useful for amateur astronomers

  9. Encounter with comet Halley

    International Nuclear Information System (INIS)

    Sagdeev, R.Z.

    1989-01-01

    This paper reports on an international armada of six spacecraft which encountered the comet Halley and performed in-situ measurements. These encounters led to the discovery of a number of cometary plasma physics phenomena. Another important result was that a value for the average density of the cometary nucleus could be estimated, which is found to be compatible with snow ball models for the nucleus

  10. Peter Halley / Peter Halley ; interv. Tilman Baumgärtel

    Index Scriptorium Estoniae

    Halley, Peter

    2006-01-01

    Ameerika maalikunstnikust Peter Halley'st (sünd. 1953) ja tema loomingust, intervjuu kunstnikuga tema New Yorgi ateljees 30. XII 1999. Peter Halley võrgustikke kujutavatest maalidest, elektroonilise teadetetahvli The Thing ja Moodsa Kunsti Muuseumi veebilehekülje jaoks tehtud digitaalsetest töödest ning muust

  11. Reviews CD-ROM: Scientific American—The Amateur Scientist 3.0 Book: The New Resourceful Physics Teacher Equipment: DynaKar Book: The Fundamentals of Imaging Book: Teaching Secondary Physics Book: Novel Materials and Smart Applications Equipment: Cryptic disk Web Watch

    Science.gov (United States)

    2012-05-01

    WE RECOMMEND Scientific American—The Amateur Scientist 3.0 Article collection spans the decades DynaKar DynaKar drives dynamics experiments The Fundamentals of Imaging Author covers whole imaging spectrum Teaching Secondary Physics Effective teaching is all in the approach Novel Materials and Smart Applications/Novel materials sample pack Resources kit samples smart materials WORTH A LOOK Cryptic disk Metal disk spins life into discussions about energy, surfaces and kinetics HANDLE WITH CARE The New Resourceful Physics Teacher Book brings creativity to physics WEB WATCH Apps for tablets and smartphones can aid physics teaching

  12. The Halley comet

    International Nuclear Information System (INIS)

    Encrenaz, T.; Festou, M.

    1985-01-01

    The conspicuous part of a comet, made of tenuous gas and dusts, represents only a tiny part of its mass. The main information is hidden in the central part: a solid nucleus, ice and rock blocks with a radius less than 10 km, completely invisible from the Earth. The knowledge of the nucleus structure and its composition could give the key of the planet creation mechanisms. That is a reason why it has been decided to send an automatic device to penetrate the Halley comet atmosphere and that two Soviet probes, Vega 1 and 2, one European probe Giotto, and two Japanese, Planet-A and MS-TS, will explore in-situ in March 1986, for the first time, a comet at atmosphere [fr

  13. The Photometric lightcurve of Comet 1P/Halley

    Science.gov (United States)

    Bair, Allison N.; Schleicher, David G.

    2014-11-01

    Comet 1P/Halley is considered an important object for a number of reasons. Not only is it the first-identified and brightest periodic comet, being the only periodic comet visible to the naked eye at every apparition, but in 1986 Halley became the first comet to be imaged by fly-by spacecraft. The NASA-funded International Halley Watch (IHW) directly supported the spacecraft by providing narrowband filters for groundbased photometric observations, and until the arrival of Hale-Bopp (1995 O1), Halley was the subject of the largest groundbased observational campaign in history. Following considerable controversy regarding its rotation period, it was eventually determined to be in complex rotation -- the first comet to be so identified. While the overall brightness variations of the coma repeated with a period of about 7.4 days, the detailed period and shape of the lightcurve constantly evolved. The determination of the specific characteristics of each of the two components of its non-principal axis rotational state has remained elusive.To resolve this situation we have now incorporated all of the narrowband photometry, taken by 21 telescopes from around the world and submitted to the IHW archive, to create the most complete homogeneous lightcurve possible. Using measurements of three gas species and the dust, the lightcurve was investigated and found to alternate between a double- and triple-peaked shape, with no single feature being present throughout the entire duration of our dataset (316 days). The apparent period as a function of time was extracted and seen to vary in a step-wise manner between 7.27 and 7.60 days. Taken together, these results were used to produce a synthetic lightcurve revealing Halley's behavior even when no data were available. Details of this and other results, to be used to constrain future detailed modeling, will be presented. This research is supported by NASA's Planetary Atmospheres Program.

  14. Espectroscopia del Cometa Halley

    Science.gov (United States)

    Naranjo, O.; Fuenmayor, F.; Ferrin, L.; Bulka, P.; Mendoza, C.

    1987-05-01

    Se reportan observaciones espectroscópicas del cometa Halley. Los espectros fueron tomados usando el espectrógrafo del telescopio reflector de 1 metro del Observatorio Nacional de Venezuela. Se utilizó óptica azul, con una red de difracción de 600 lineas/min, obteniéndose una dispersión de 74.2 A/mm y una resolución de 2.5 A, en el rango espectral de 3500 a 6500 A. Seis placas fueron tomadas con emulsión IIa-O y dos con IIa-D. Los tiempos de exposición fueron entre 10 y 150 minutos. El cometa se encontraba entre 0.70 y 1.04 UA del Sol, y entre 1.28 y 0.73 UA de la Tierra. Las emisiones más prominentes en el espectro, son las del CN, C2, y C3. Otras emisiones detectadas corresponden a CH, NH2 y Na. Los espectros muestran un fuerte continuo, indicando un contenido significativo de polvo. Se detectó mayor intensidad del contínuo, en la dirección anti solar, lo cual es evidencia de la cola de polvo.

  15. Nitrogen abundance in Comet Halley

    International Nuclear Information System (INIS)

    Wyckoff, S.; Tegler, S.C.; Engel, L.

    1991-01-01

    Data on the nitrogen-containing compounds that observed spectroscopically in the coma of Comet Halley are summarized, and the elemental abundance of nitrogen in the Comet Halley nucleus is derived. It is found that 90 percent of elemental nitrogen is in the dust fraction of the coma, while in the gas fraction, most of the nitrogen is contained in NH3 and CN. The elemental nitrogen abundance in the ice component of the nucleus was found to be deficient by a factor of about 75, relative to the solar photosphere, indicating that the chemical partitioning of N2 into NH3 and other nitrogen compounds during the evolution of the solar nebula cannot account completely for the low abundance ratio N2/NH3 = 0.1, observed in the comet. It is suggested that the low N2/NH3 ratio in Comet Halley may be explained simply by physical fractionation and/or thermal diffusion. 88 refs

  16. Inside look at Halley's comet

    International Nuclear Information System (INIS)

    Beatty, J.K.

    1986-01-01

    The 1985-1986 emergence of Halley's comet, the first since the advent of the space age, was explored by a variety of spacecraft. The Vega 1, launched by the USSR together with the Eastern-block alliance, passed 5523 miles from the comet's nucleus at 7:20:06 Universal time. It indicated that the comet was about 300 miles closer to the sun than had been predicted. The Japanese spacecraft, Suisei, was created to map the distribution of neutral hydrogen atoms outside Halley's visible coma. Its pictures indicated that the comet's output of water varied between 25 and 60 tons per second. Five days after the Vega 2's passage through the comet, the Giotto (sponsored by the European Space Agency) probe appeared. Giotto's close approach took place 3.1 minutes after midnight UT on March 14th; the craft had passed 376 miles from its target. Giotto's data indicated that the nucleus was bigger than expected, and that the comet was composed primarily of water, CO2 and N2. The Vegas and Giotto found that as the solar wind approaches Halley, it slows gradually and the solar magnetic lines embedded in the wind begin to pile up. Pick-up ions, from the comet's halo of neutral hydrogen, were found in this solar wind. Sensors on the Vega spacecraft found a variety of plasma waves propagating inside the bow wave. In order to synthesize all the results, a conference on the exploration of Halley's comet will be held this October

  17. Rationalization of Comet Halley's periods

    Science.gov (United States)

    Belton, Michael J. S.

    1990-01-01

    The sense of long axis orientation of Comet Halley during the Vega 1 encounter must be reversed from that deduced by Sagdeev et al. (1986) in order to harmonize the comet nucleus' Vega/Giotto-observed orientations with periodicities extracted from time-series brightness data. It is also demonstrated that Vega/Giotto observations can be satisfied by either a 2.2- or 3.7-day long-axis free precession period. A novel Fourier algorithm is used to reanalyze five independent data sets; strong evidence is adduced for periods harmonically related to a 7.4-day period. The preferred candidate models for Halley's nuclear rotation are characterized by a long-axis precession period of 3.7 days.

  18. Astronomical Spectroscopy for Amateurs

    CERN Document Server

    Harrison, Ken M

    2011-01-01

    Astronomical Spectroscopy for Amateurs is a complete guide for amateur astronomers who are looking for a new challenge beyond astrophotography. The book provides a brief overview of the history and development of the spectroscope, then a short introduction to the theory of stellar spectra, including details on the necessary reference spectra required for instrument testing and spectral comparison. The various types of spectroscopes available to the amateur are then described. Later sections cover all aspects of setting up and using various types of commercially available and home-built spectroscopes, starting with basic transmission gratings and going through more complex models, all the way to the sophisticated Littrow design. The final part of the text is about practical spectroscope design and construction. This book uniquely brings together a collection of observing, analyzing, and processing hints and tips that will allow the amateur to build skills in preparing scientifically acceptable spectra data. It...

  19. The Comet Halley Handbook: An Observer's Guide. Second Edition.

    Science.gov (United States)

    Yeomans, Donald K.

    This handbook contains information on: (1) the orbit of comet Halley; (2) the expected physical behavior of comet Halley in 1985-1986, considering brightness estimates, coma diameters, and tail lengths; (3) observing conditions for comet Halley in 1985-1986; and (4) observing conditions for the dust tail of comet Halley in 1985-1986. Additional…

  20. Viewers Motivations for Watching Beauty Videos on You Tube

    OpenAIRE

    Jiroušková, Dominika

    2016-01-01

    The diploma thesis focuses on motivations for watching beauty videos on YouTube. The aim is to clarify why viewers watch amateur videos that communicate topics related to physical appearance. Assuming the audience as an active actor of media communication the thesis is based on uses and gratification theory. Viewers watch beauty videos consciously to meet their individual needs. Based on an analysis of eleven interviews with regular viewers of beauty videos this thesis reveals five categories...

  1. The Amateur Scientist.

    Science.gov (United States)

    Walker, Jearl

    1981-01-01

    Describes several methods by which an amateur might prepare a laser light display in the home or the classroom. Methods described include the use of particles in lasers, filters, reflecting laser beams, vibration's effects on laser beams, rotating mirrors, and the use of prisms with laser beams. (DS)

  2. AMATEUR "HAM" RADIO

    Science.gov (United States)

    these cooler months. Did you know your body can cool 25 times faster in water than in air? That water code at 13 or 20 words-per-minute will no longer be required to obtain amateur radio operating be found by contacting the ARRL or using an Internet search engine to search on such topics as "

  3. Radar observations of Comet Halley

    International Nuclear Information System (INIS)

    Campbell, D.B.; Harmon, J.K.; Shapiro, I.I.

    1989-01-01

    Five nights of Arecibo radar observations of Comet Halley are reported which reveal a feature in the overall average spectrum which, though weak, seems consistent with being an echo from the comet. The large radar cross section and large bandwidth of the feature suggest that the echo is predominantly from large grains which have been ejected from the nucleus. Extrapolation of the dust particle size distribution to large grain sizes gives a sufficient number of grains to account for the echo. The lack of a detectable echo from the nucleus, combined with estimates of its size and rotation rate from spacecraft encounters and other data, indicate that the nucleus has a surface of relatively high porosity. 33 references

  4. Comet Halley, parameter study I

    International Nuclear Information System (INIS)

    Huebner, W.F.; Fikani, M.M.

    1982-06-01

    To aid in defining a mission to comet P/Halley, its inner coma is simulated by a computer program that models time-dependent chemical reactions in a radially and isentropically expanding gas, taking into account attenuation of solar ultraviolet radiation in the subsolar direction. Column density predictions are based on intelligently selected combinations of poorly known values for nucleus parameters that include size, visual albedo, and infrared emissivity. Only one chemical composition and a minor modification of it are considered here; the dust-to-gas ratio in this model is zero. Although the somewhat optimistically volatile composition chosen here favors a smaller nucleus, a mean nuclear radius of only 0.5 km is unlikely. No significant increase of molecular column density is predicted by this model as a spacecraft approaches, once it is less than a few 10 4 km from the nucleus. Predictions are made for various heliocentric distances of interest for comet missions and for ground observations

  5. Comet Halley and interstellar chemistry

    International Nuclear Information System (INIS)

    Snyder, L.E.

    1989-01-01

    How complex is the chemistry of the interstellar medium? How far does it evolve and how has it interacted with the chemistry of the solar system? Are the galactic chemical processes destroyed, preserved, or even enhanced in comets? Are biogenic molecules formed in space and have the formation mechanisms interacted in any way with prebiotic organic chemical processes on the early earth? Radio molecular studies of comets are important for probing deep into the coma and nuclear region and thus may help answer these questions. Comets are believed to be pristine samples of the debris left from the formation of the solar system and may have been the carrier between interstellar and terrestrial prebiotic chemistries. Recent observations of Comet Halley and subsequent comets have given the author an excellent opportunity to study the relationship between interstellar molecular chemistry and cometary chemistry

  6. Comet Halley: nucleus and jets

    International Nuclear Information System (INIS)

    Sagdeev, R.Z.; Avanesov, G.A.; Barinov, I.V.

    1986-06-01

    The VEGA-1 and VEGA-2 spacecrafts made their closest approach to Comet Halley on 6 and 9 March, respectively. In this paper results of the onboard imaging experiment are discussed. The nucleus of the comet was clearly identifyable as an irregularly shaped object with overall dimensions of (16+-1)x(8+-1)x(8+-1) km. The nucleus rotates around its axis which is nearly perpendicular to the orbital plane, with a period of 53+-2 hours. Its albedo is only 0.04+-002. Most of the jet features observed during the second fly-by were spatially reconstructed. These sources form a quasi-linear structure on the surface. The dust above the surface is shown to be optically thin except certain specific dust jets. Brightness features on the surface are clearly seen. Correlating the data with other measurements it is concluded that the dirty snow-ball model probably has to be revised. (author)

  7. The landscape of comet Halley

    International Nuclear Information System (INIS)

    Merenyi, E.; Foeldy, L.; Szegoe, K.; Kondor, A.; Toth, I.

    1989-07-01

    In this paper the three dimensional model of P/Halley's nucleus is constructed based on the results of the imaging experiments. It has the following major characteristics: the overall sizes are 7.2 km, 7.22 km, 15.3 km; its volume is 365 km 3 ; the ratios of the inertial momenta are 3.4:3.3:1, the longest inertial axis is slightly inclined to the geometrical axis of the body, 3.3 deg in latitude and 1.1 deg in longitude if the geometrical axis is at zero latitude and longitude. The shape is very irregular, it is not close to any regular body, e.g. to a tri-axial ellipsoid. Several features on the images are interpreted as local slope variations of the nucleus. (author) 10 refs.; 15 figs

  8. The New Amateur Astronomer

    Science.gov (United States)

    Mobberley, Martin

    Amateur astronomy has changed beyond recognition in less than two decades. The reason is, of course, technology. Affordable high-quality telescopes, computer-controlled 'go to' mountings, autoguiders, CCD cameras, video, and (as always) computers and the Internet, are just a few of the advances that have revolutionized astronomy for the twenty-first century. Martin Mobberley first looks at the basics before going into an in-depth study of what’s available commercially. He then moves on to the revolutionary possibilities that are open to amateurs, from imaging, through spectroscopy and photometry, to patrolling for near-earth objects - the search for comets and asteroids that may come close to, or even hit, the earth. The New Amateur Astronomer is a road map of the new astronomy, equally suitable for newcomers who want an introduction, or old hands who need to keep abreast of innovations. From the reviews: "This is one of several dozen books in Patrick Moore's "Practical Astronomy" series. Amid this large family, Mobberley finds his niche: the beginning high-tech amateur. The book's first half discusses equipment: computer-driven telescopes, CCD cameras, imaging processing software, etc. This market is changing every bit as rapidly as the computer world, so these details will be current for only a year or two. The rest of the book offers an overview of scientific projects that serious amateurs are carrying out these days. Throughout, basic formulas and technical terms are provided as needed, without formal derivations. An appendix with useful references and Web sites is also included. Readers will need more than this book if they are considering a plunge into high-tech amateur astronomy, but it certainly will whet their appetites. Mobberley's most valuable advice will save the book's owner many times its cover price: buy a quality telescope from a reputable dealer and install it in a simple shelter so it can be used with as little set-up time as possible. A poor

  9. Amateur Telescope Making

    Science.gov (United States)

    Tonkin, Stephen

    Many amateur astronomers make their own instruments, either because of financial considerations or because they are just interested. Amateur Telescope Making offers a variety of designs for telescopes, mounts and drives which are suitable for the home-constructor. The designs range from simple to advanced, but all are within the range of a moderately well-equipped home workshop. The book not only tells the reader what he can construct, but also what it is sensible to construct given what time is available commercially. Thus each chapter begins with reasons for undertaking the project, then looks at theoretical consideration before finishing with practical instructions and advice. An indication is given as to the skills required for the various projects. Appendices list reputable sources of (mail order) materials and components. The telescopes and mounts range from "shoestring" (very cheap) instruments to specialist devices that are unavailable commercially.

  10. Comet Halley and its historic passages during the past millennium

    International Nuclear Information System (INIS)

    Legrand, J.P.

    1986-01-01

    The March 12, 1759 return of Comet Halley verified Halley's hypothesis on the existence of periodic comets and supported Newton's principle of universal attraction. Comet Halley's appearances before the 16th century are traced and it is noted that the length of the comet's tail has varied greatly. The comet's rendezvous with ESA's satellite Giotto is discussed briefly

  11. On LAM's and SAM's for Halley's rotation

    Science.gov (United States)

    Peale, Stanton J.

    1992-01-01

    Non principal axis rotation for comet Halley is inferred from dual periodicities evident in the observations. The modes where the spin axis precesses around the axis of minimum moment of inertia (long axis mode or LAM) and where it precesses around the axis of maximum moment of inertia (short axis mode or SAM) are described from an inertial point of view. The currently favored LAM model for Halley's rotation state satisfies observational and dynamical constraints that apparently no SAM can satisfy. But it cannot reproduce the observed post perihelion brightening through seasonal illumination of localized sources on the nucleus, whereas a SAM can easily produce post or pre perihelion brightening by this mechanism. However, the likelihood of a LAM rotation for elongated nuclei of periodic comets such as Halley together with Halley's extreme post perihelion behavior far from the Sun suggest that Halley's post perihelion brightening may be due to effects other than seasonal illumination of localized sources, and therefore such brightening may not constrain its rotation state.

  12. Particle acceleration near Halley's comet

    International Nuclear Information System (INIS)

    Somogyi, Antal

    1987-01-01

    Vega and Giotto space probes observed energetic ions of cometary origin near Halley's comet. The water molecules evaporating from the cometary nucleus were ionized by the solar UV radiation. These 'standing' ions were accelerated from 1 km/s to a few 1000 km/s. Present paper analyses the possible mechanisms of acceleration based on the data of TUENDE detector (constructed by CRIP, Hungary) working on board of Vega probes. The basic mechanism is the ExB Lorentz acceleration by interplanetary magnetic field and electric field induced by magnetic field frozen into solar wind plasma. It is followed by an acceleration caused by the adiabatic compression of the plasma at shock wave front. These processes can not explain the observed velocity of ions. It is shown that the second order Fermi acceleration which dissipates the ion distribution in the velocity space can lead to the observed velocities. The circumstances required to the occurrence of this process are present at the cometary environment. (D.G.) 2 figs

  13. Nature Watch

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 1; Issue 3. Nature Watch Diversity of Bats. G Marimuthu. Feature Article Volume 1 Issue 3 March 1996 pp 103-110. Fulltext. Click here to view fulltext PDF. Permanent link: https://www.ias.ac.in/article/fulltext/reso/001/03/0103-0110. Author Affiliations.

  14. Nature Watch

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 9; Issue 9. Nature Watch - Coral Reefs and their Fauna: An Underwater Fantasyland. Anuradha Bhat. Feature Article Volume 9 Issue 9 September 2004 pp 62-73. Fulltext. Click here to view fulltext PDF. Permanent link:

  15. Nature Watch

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 20; Issue 3. Nature Watch: Symbiosis in Coastal Marine Communities. Neelam Pereira. Feature Article Volume 20 Issue 3 March 2015 pp 245-253. Fulltext. Click here to view fulltext PDF. Permanent link:

  16. Nature Watch

    Indian Academy of Sciences (India)

    ... Lecture Workshops · Refresher Courses · Symposia · Live Streaming. Home; Journals; Resonance – Journal of Science Education; Volume 3; Issue 5. Nature Watch - Thinking Like a Tahr: When Males and Females go their Separate Ways. M D Madhusudan. Feature Article Volume 3 Issue 5 May 1998 pp 43-47 ...

  17. Nature Watch

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 6; Issue 7. Nature Watch - Singapore's Jurong BirdPark: A Study Model. Abraham Verghese. Feature Article Volume 6 Issue 7 July 2001 pp 74-88. Fulltext. Click here to view fulltext PDF. Permanent link:

  18. Nature Watch

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 4; Issue 7. Nature Watch - The Odyssey of the Olive Ridley. Kartik Shanker. Feature Article Volume 4 Issue 7 July 1999 pp 68-78. Fulltext. Click here to view fulltext PDF. Permanent link: https://www.ias.ac.in/article/fulltext/reso/004/07/0068-0078 ...

  19. Nature Watch

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 1; Issue 8. Nature Watch - Secrets of the Shieldtails. Kartik Shanker. Feature Article Volume 1 Issue 8 August 1996 pp 64-70. Fulltext. Click here to view fulltext PDF. Permanent link: https://www.ias.ac.in/article/fulltext/reso/001/08/0064-0070 ...

  20. Nature Watch

    Indian Academy of Sciences (India)

    2016-08-26

    Aug 26, 2016 ... ... 20; Issue 1. Nature Watch: A Tale of Two Turtles. V Deepak. Feature Article Volume 20 Issue 1 January 2015 pp 47-54. Fulltext. Click here to view fulltext PDF. Permanent link: http://www.ias.ac.in/article/fulltext/reso/020/01/0047-0054. Keywords. Ecology; endemic; India; turtles; tortoises; Western Ghats.

  1. On the nature of the Halley comet

    International Nuclear Information System (INIS)

    Dobrovol'skij, O.V.; Ioffe, Z.M.

    1987-01-01

    The results of study of the Halley comet by means of the ''Vega'', ''Suisej'', ''Sakigaki'' and ''Jotton'' space probes are presented in the popular form. The form and composition of the comet nucleus, its atmosphere and processes ocurring when moving in the near-the-solar space are described

  2. VEGA1 HALLEY FLYBY MAGNETOMETER DATA

    Data.gov (United States)

    National Aeronautics and Space Administration — On MARCH 6, 1986, AT 7:20:06 UT, the Vega spacecraft passed the nucleus of comet Halley at a distance of 8,890 km with a relative velocity of 78 km/s. The magnetic...

  3. Mussel watch

    Science.gov (United States)

    Contamination of U.S. coastal areas may be decreasing as a result of environmental regulations that have banned or curtailed toxic chemicals, concludes a report by the National Oceanic and Atmospheric Administration. The report, “Recent Trends in Coastal Environmental Quality: Results from the Mussel Watch Project,” presents results of analyzing chemical concentrations found in mussel and oyster tissues collected every year since 1986.These mollusks are collected once a year at more than 240 sites nationwide and analyzed for over 70 polycyclic aromatic hydrocarbons, polychlorinated biphenyls, chlorinated pesticides, butyltins, and toxic trace elements such as copper, cadmium, and lead. The report states that from 1986 to 1993 there were many more decreases than increases in chemical concentrations in coastal regions. These decreasing trends were not unexpected; all of the monitored chlorinated hydrocarbons have been banned for use in the United States, and tributyltin has been banned as a biocide on recreational boats.

  4. Comet Halley - Chapter I in cometary exploration

    International Nuclear Information System (INIS)

    Newburn, R.L. Jr.

    1986-01-01

    The information gained on the Comet Halley by the international probe studies is presented. The new information includes data on the true size and shape of the cometary nucleus and the mass of its dust grains, the chemical composition of the nucleus, and the characteristics of the bow wave of the comet. The requirements of future missions for solving the many questions that are still open are discussed

  5. Ali, Cunich: Halley's Churches: Halley and the London Queen Anne Churches

    Science.gov (United States)

    Ali, Jason R.; Cunich, Peter

    2005-04-01

    Edmond Halley's enormous contribution to science has received much attention. New research adds an intriguing chapter to his story and concerns his hitherto unexplored association with the baroque architectural visionary Nicholas Hawksmoor, and some important Temple-inspired churches that were built in London in the early 1700s. We argue that Christchurch Spitalfields and St Anne's Limehouse, which were both started in the summer of 1714, were aligned exactly eastwards using ``corrected'' magnetic-compass bearings and that Halley influenced or aided Hawksmoor. By this time the men had probably known each other for 30 years and had recently worked together on the Clarendon Building in Oxford. Despite there being more than 1500 years of Chinese and about 500 years of Western compass technology at the time, these probably represent the first constructions planned using a modern-day ``scientific'' technique. The research also throws light on Halley's contended religious position.

  6. Comet Halley: An optical continuum study

    International Nuclear Information System (INIS)

    Hoban, S.M.

    1989-01-01

    From an analysis of narrowband CCD images of Comet Halley from 1986 January, March, and April, certain dust structures which are redder than the remainder of the dust coma have become apparent. Mie calculations suggest that this reddening is due to an enhancement of particles with sizes comparable to the observing wavelengths. Although the mass range derived from the calculations presented here is somewhat uncertain as a result of the limitations of Mie theory, these values are in the expected range derived from the calculations presented here is somewhat uncertain as a result of particle sizes which would be both sensitive to radiation pressure and significantly reddened with respect to the solar spectrum at the observing wavelengths. Thus, the red envelopes are plausibly the result of size sorting by solar radiation pressure. The red jets observed on 1986 January 10, March 1 and March 9 can then be explained by the enhanced dust flux at the jet sources, and the subsequent trapping of a relative excess of intermediate mass (i.e. red) particles into the jets which are visible in the continuum images. Analysis of narrowband photometry of the optical continuum of Comet Halley reveals no correlation between the color of the dust and heliocentric distance, phase angle, strength of the continuum or gas-to-dust ratio. The photometric data are thus consistent with a post-ejection sorting mechanism. Chemical inhomogeneities of the nucleus are therefore not necessary to explain the observed structure in the color of the dust in Comet Halley

  7. Amateur knowledge: public art and citizen science.

    Science.gov (United States)

    Rogers, Hannah

    2011-01-01

    The science studies literatures on amateurs and citizen science have remained largely unconnected despite similarities between the two categories. The essay connects amateur knowledge and citizen science through examples from public art. Through an analysis of the use of the term "amateur" by contemporary artists working to engage the public in critiques of science, connections in the ideals of democratic knowledge making by amateurs and citizen scientists are further explored.

  8. Collection building amongst heritage amateurs

    DEFF Research Database (Denmark)

    Roued-Cunliffe, Henriette

    2017-01-01

    . Practical implications This review of existing literature will benefit researchers and practitioners in the fields of education, information science, museums, libraries and archival studies, as well as the multidisciplinary area of heritage studies. Social implications There is a growing institutional...... leisure and show how their angles on heritage amateurs differ and compare....

  9. Carbonaceous Components in the Comet Halley Dust

    Science.gov (United States)

    Fomenkova, M. N.; Chang, S.; Mukhin, L. M.

    1994-01-01

    Cometary grains containing large amounts of carbon and/or organic matter (CHON) were discovered by in situ measurements of comet Halley dust composition during VEGA and GIOTTO flyby missions. In this paper, we report the classification of these cometary, grains by means of cluster analysis, discuss the resulting compositional groups, and compare them with substances observed or hypothesized in meteorites, interplanetary dust particles, and the interstellar medium. Grains dominated by carbon and/or organic matter (CHON grains) represent approx. 22% of the total population of measured cometary dust particles. They, usually contain a minor abundance of rock-forming elements as well. Grains having organic material are relatively more abundant in the vicinity of the nucleus than in the outer regions of the coma, which suggests decomposition of the organics in the coma environment. The majority of comet Halley organic particles are multicomponent mixtures of carbon phases and organic compounds. Possibly, the cometary CHON grains may be related to kerogen material of an interstellar origin in carbonaceous meteorites. Pure carbon grains, hydrocarbons and polymers of cyanopolyynes, and multi-carbon monoxides are present in cometary dust as compositionally simple and distinctive components among a variety of others. There is no clear evidence of significant presence of pure formaldehyde or HCN polymers in Halley dust particles. The diversity of types of cometary organic compounds is consistent with the inter-stellar dust model of comets and probably reflects differences in composition of precursor dust. Preservation of this heterogeneity among submicron particles suggest the gentle formation of cometary, nucleus by aggregation of interstellar dust in the protosolar nebula without complete mixing or chemical homogenization at the submicron level.

  10. The spacecraft encounters of Comet Halley

    Science.gov (United States)

    Asoka Mendis, D.; Tsurutani, Bruce T.

    1986-01-01

    The characteristics of the Comet Halley spacecraft 'fleet' (VEGA 1 and VEGA 2, Giotto, Suisei, and Sakigake) are presented. The major aims of these missions were (1) to discover and characterize the nucleus, (2) to characterize the atmosphere and ionosphere, (3) to characterize the dust, and (4) to characterize the nature of the large-scale comet-solar wind interaction. While the VEGA and Giotto missions were designed to study all four areas, Suisei addressed the second and fourth. Sakigake was designed to study the solar wind conditions upstream of the comet. It is noted that NASA's Deep Space Network played an important role in spacecraft tracking.

  11. Amateur Astronomers: Secret Agents of EPO

    Science.gov (United States)

    Berendsen, M.; White, V.; Devore, E.; Reynolds, M.

    2008-06-01

    Amateur astronomers prime the public to be more interested, receptive, and excited about space science, missions, and programs. Through recent research and targeted programs, amateur astronomy outreach is being increasingly recognized by professional astronomers, educators, and other amateurs as a valued and important service. The Night Sky Network program, administered by the ASP, is the first nationwide research-based program specifically targeted to support outreach by amateur astronomers. This Network of trained and informed amateur astronomers can provide a stimulating introduction to your EPO programs as Network members share the night sky with families, students, and youth groups.

  12. Neurochemical aftermath of amateur boxing.

    Science.gov (United States)

    Zetterberg, Henrik; Hietala, M Albert; Jonsson, Michael; Andreasen, Niels; Styrud, Ewa; Karlsson, Ingvar; Edman, Ake; Popa, Cornel; Rasulzada, Abdullah; Wahlund, Lars-Olof; Mehta, Pankaj D; Rosengren, Lars; Blennow, Kaj; Wallin, Anders

    2006-09-01

    Little solid information is available on the possible risks for neuronal injury in amateur boxing. To determine whether amateur boxing and severity of hits are associated with elevated levels of biochemical markers for neuronal injury in cerebrospinal fluid. Longitudinal study. Referral center specializing in evaluation of neurodegenerative disorders. Fourteen amateur boxers (11 men and 3 women) and 10 healthy male nonathletic control subjects. The boxers underwent lumbar puncture 7 to 10 days and 3 months after a bout. The control subjects underwent LP once. Neurofilament light protein, total tau, glial fibrillary acidic protein, phosphorylated tau, and beta-amyloid protein 1-40 (Abeta([1-40])) and 1-42 (Abeta([1-42])) concentrations in cerebrospinal fluid were measured. Increased levels after a bout compared with after 3 months of rest from boxing were found for 2 markers for neuronal and axonal injury, neurofilament light protein (mean +/- SD, 845 +/- 1140 ng/L vs 208 +/- 108 ng/L; P = .008) and total tau (mean +/- SD, 449 +/- 176 ng/L vs 306 +/- 78 ng/L; P = .006), and for the astroglial injury marker glial fibrillary acidic protein (mean +/- SD, 541 +/- 199 ng/L vs 405 +/- 138 ng/L; P = .003). The increase was significantly higher among boxers who had received many hits (>15) or high-impact hits to the head compared with boxers who reported few hits. In the boxers, concentrations of neurofilament light protein and glial fibrillary acidic protein, but not total tau, were significantly elevated after a bout compared with the nonathletic control subjects. With the exception of neurofilament light protein, there were no significant differences between boxers after 3 months of rest from boxing and the nonathletic control subjects. Amateur boxing is associated with acute neuronal and astroglial injury. If verified in longitudinal studies with extensive follow-up regarding the clinical outcome, analyses of cerebrospinal fluid may provide a scientific basis for

  13. Colour, albedo and nucleus size of Halley's comet

    Science.gov (United States)

    Cruikshank, D. P.; Tholen, D. J.; Hartmann, W. K.

    1985-01-01

    Photometry of Halley's comet in the B, J, V, and K broadband filters during a time when the coma was very weak and presumed to contribute negligibly to the broadband photometry is reported. The V-J and J-K colors suggest that the color of the nucleus of Halley's comet is similar to that of the D-type asteroids, which in turn suggests that the surface of the nucleus has an albedo less than 0.1.

  14. The rotation of P/Halley

    International Nuclear Information System (INIS)

    Sagdeev, R.Z.; Szegoe, K.; Kondor, A.; Merenyi, E.; Smith, B.A.; Larson, S.; Toth, I.

    1987-11-01

    The nucleus of the comet Halley rotates as a slightly asymmetric top, the orientation of the rotation axis (the orientation of the angular momentum vector) is b=54 deg +-15 deg, l=219 deg +-15 deg in the ecliptic system. In the case of the rotation of an asymmetric top the rotation axis is not fixed rigidly to the body, which means that while the nucleus rotates around the axis with a period of 2.2+-0.05 d, its long axis 'nods' periodically with a period of 7.4+-0.05 d. The amplitude of the 'nodding' is about 15 deg +-3 deg in both directions relative to a plane perpendicular to the rotation axis. (author) 21 refs.; 6 figs.; 2 tabs

  15. Atlas of Comet Halley 1910 II

    International Nuclear Information System (INIS)

    Brandt, J.C.; Donn, B.

    1986-01-01

    An Atlas of Comet Halley 1910 II photographs and spectra is being prepared. The major section consists of 838 photographic observations from fifteen observatories around the world. Multiple images of many photographs are reproduced to bring out detail in the near nucleus region, in the coma and in the tail. The Atlas contains a total of 1209 photographic images of the 1910 apparition. In addition there are sections showing drawings from 1935 and 1910. A short section compares 1910 drawings and photographs. The final two sections display digitally processed images from 1910 and 1910 spectra. A three part appendix contains diagrams of various data associated with the 1910 apparition, a set of tables of all 1910 images and a bibliography

  16. Halley comet, implication on the origin

    International Nuclear Information System (INIS)

    Festou, M.C.

    1990-01-01

    One will first give a rapid description of the different parts that compose a comet coma. Then one will describe the spectrum of comets from the UV to the IR regions with special emphasis on how information relative to the physico-chemistry of comet atmospheres can be retrieved. Our basic knowledge about the composition of comets before 1985 will be summarized and the input of the 1985-86 observing campaign of comet Halley will be shown (in situ, ground-based and space borne observations). One will see then that the chemical composition of comets appears as of today completely compatible with a formation from pre-solar matter that condensed inside the solar system [fr

  17. On the photometric parameters of comet Halley

    International Nuclear Information System (INIS)

    Toth, I.

    1984-12-01

    Halley's comet is one of the brightest comets in the absolute sense. The paper describes the expectations about its brightness parameters, and the main physical properties of the nucleus can be derived from photometry up to the last opposition. Results were obtained relating to the decrease of absolute magnitude and the possible period of brightness fluctuation according to data obtained at CFHT on 4 th Feb. 1984. The slope of decrease of absolute magnitude is about 0.17 magnitude per revolution. On 4th Feb. 1984, the brightness fluctuations had a period about 9.0+-0.5 hr but it seems that the general form of fluctuations on a large time-scale is not a clear sinosoidal shape, and the most probable periods are between 9 and 48 hrs. (author)

  18. The cyanogen band of Comet Halley

    Science.gov (United States)

    Tatum, J. B.; Campbell, E. C.

    The results of improved whole disk solar irradiance spectrum calculations performed for projected Halley's Comet heliocentric radial velocity and distance are provided. The computations were carried out to account for Doppler effects in the Fraunhofer lines of rotational excitation bands of violet CN emissions from the comet in its encounters with solar radiation. The calculations spanned every half-day for 200 days before and after perihelion. The 801 computer images of the expected intensities were photographed in sequence to form an animated film paced by background music from Liszt's Second Hungarian Rhapsody. The results are intended for accounting for spectral changes observed due to Doppler effects induced by changing velocity and distance, rather than physical mechanisms of the emitting processes.

  19. [Sherlock Holmes as amateur physician].

    Science.gov (United States)

    Madsen, S

    1998-03-30

    The medical literature contains numerous articles dealing with Sherlock Holmes and his companion Dr. Watson. Some of the articles are concerned with the medical and scientific aspects of his cases. Other articles adopt a more philosophical view: They compare the methods of the master detective with those of the physician--the ideal clinician should be as astute in his profession as the detective must be in his. It this article the author briefly reviews the abilities of Sherlock Holmes as an amateur physician. Often Holmes was brilliant, but sometimes he made serious mistakes. In one of his cases (The Adventure of the Lion's Mane) he misinterpreted common medical signs.

  20. Dr Valter Rukavina - amateur painter.

    Science.gov (United States)

    Glavocic, Daina

    2008-01-01

    In this essay Dr Valter Rukavina (Rijeka 1896-1972), excellent specialist in infectious diseases and professor of the Rijeka University School of Medicine, is presented as successful amateur painter. He had been refining his talent through relentless practice since the school days, complementing it with skills and advice from established painters he associated with. He favoured figurative, realistic and somewhat romantic expression for his themes such as coastal landscapes, marinas, Quarnero sceneries, still life in tempera or oil, and drawings in ink or sepia. Despite partial colour blindness, he successfully used colour. He featured in a number of group exhibitions such as that of amateur painters of Rijeka in 1950, of painters physicians of Yugoslavia (Zagreb, 1956), in the Second International Exhibition of Contemporary Art (Florence, 1964), exhibition of the Rijeka branch of the Croatian Association of Visual Artists (Belgrade, 1966), and the 1969 exhibition in Opatija. His native city hosted two one-man exhibitions, the first retrospective in 1971, while he was still alive, and the second posthumous in 2007, with a good selection of his life's work.

  1. 76 FR 17569 - Amateur Service Rules

    Science.gov (United States)

    2011-03-30

    ... spread spectrum emissions. The rule amendments are necessary to eliminate the requirement that an amateur... spectrum emission, and to reduce the maximum allowed transmitter output power for an amateur station transmitting a spread spectrum emission. The effect of this action is to eliminate the automatic power control...

  2. Using commercial amateur astronomical spectrographs

    CERN Document Server

    Hopkins, Jeffrey L

    2014-01-01

    Amateur astronomers interested in learning more about astronomical spectroscopy now have the guide they need. It provides detailed information about how to get started inexpensively with low-resolution spectroscopy, and then how to move on to more advanced  high-resolution spectroscopy. Uniquely, the instructions concentrate very much on the practical aspects of using commercially-available spectroscopes, rather than simply explaining how spectroscopes work. The book includes a clear explanation of the laboratory theory behind astronomical spectrographs, and goes on to extensively cover the practical application of astronomical spectroscopy in detail. Four popular and reasonably-priced commercially available diffraction grating spectrographs are used as examples. The first is a low-resolution transmission diffraction grating, the Star Analyser spectrograph. The second is an inexpensive fiber optic coupled bench spectrograph that can be used to learn more about spectroscopy. The third is a newcomer, the ALPY ...

  3. Eventos de Desconexao na Cauda de Plasma do Cometa P/Halley

    Science.gov (United States)

    Voelzke, M. R.; Fahr, H. J.

    2001-08-01

    Observacoes cometárias e de vento solar sao comparadas com o propósito de determinar-se as condicoes do vento solar associadas aos eventos de desconexao (DEs) observados em caudas de plasma cometárias. Os dados cometários sao provenientes do The International Halley Watch Atlas of Large-Scale Phenomena. A análise visual sistemática das imagens do atlas revelou, entre outras estruturas morfológicas, 47 DEs ao longo da cauda de plasma do P/Halley. Estes 47 DEs registrados em 47 imagens distintas permitiram a descoberta de 19 origens de DEs, ou seja, o tempo em que as desconexoes iniciaram foi calculado. Os dados do vento solar sao provenientes de medidas feitas in situ pela sonda espacial IMP-8, as quais foram usadas para elaborar a variacao da velocidade do vento solar, densidade e pressao dinâmica durante o intervalo analisado. O presente trabalho compara as atuais teorias conflitantes, baseadas nos mecanismos de formacao, com o intuito de explicar o fenômeno cíclico dos DEs, ou seja, os efeitos de producao iônica, os efeitos de pressao e os efeitos de reconexao magnética sao analisados. Para cada uma das 19 origens de DEs comparou-se a densidade com a respectiva velocidade do vento solar com o intuito de determinar-se uma possível correlacao entre estas origens e os efeitos de pressao dinâmica. Quando da ocorrência de 6 origens de DEs o IMP-8 nao realizou medidas, nos outros 13 casos 10 origens (77%) mostraram uma anticorrelacao entre velocidade e densidade e apenas 3 (23%) revelaram uma tendência similar entre velocidade e densidade. Portanto, a análise inicial demonstra uma fraca correlacao entre as origens dos DEs e os efeitos de pressao.

  4. International cooperation and amateur meteor work

    Science.gov (United States)

    Roggemans, P.

    Today, the existing framework for international cooperation among amateur meteor workers offers numerous advantages. However, this is a rather recent situation. Meteor astronomy, although popular among amateurs, was the very last topic within astronomy to benefit from a truly international approach. Anyone attempting long term studies of, for instance, meteor stream structures will be confronted with the systematic lack of usable observations due to the absence of any standards in observing, recording and reporting, any archiving or publishing policy. Visual meteor observations represent the overall majority of amateur efforts, while photographic and radio observing were developed only in recent decades as technological specialties of rather few meteor observing teams.

  5. The Amateurs' Love Affair with Large Datasets

    Science.gov (United States)

    Price, Aaron; Jacoby, S. H.; Henden, A.

    2006-12-01

    Amateur astronomers are professionals in other areas. They bring expertise from such varied and technical careers as computer science, mathematics, engineering, and marketing. These skills, coupled with an enthusiasm for astronomy, can be used to help manage the large data sets coming online in the next decade. We will show specific examples where teams of amateurs have been involved in mining large, online data sets and have authored and published their own papers in peer-reviewed astronomical journals. Using the proposed LSST database as an example, we will outline a framework for involving amateurs in data analysis and education with large astronomical surveys.

  6. Procesamiento Digital de Imagenes del Cometa Halley

    Science.gov (United States)

    Ferrin, L.; Fuenmayor, F.; Naranjo, O.; Bulka, P.; Mendoza, C.

    1987-05-01

    Se reportan observaciones fotográficas del cometa Halley, obtenidas con los telescopios Schmidt de 1-m del CIDA, y de 35 cms de la ULA. Se hicieron exposiciones desde 2 segundos a 30 minutos y se utilizaron emulsiones IIa-O, 103a-F, y 103a-D, guladas manualmente 0 automaticámente. Las imágenes fueron digitalizadas con el microdensitómetro PDS, y procesadas con el sistema HACIENDA del CCIBM. Se experimentó con la Transformada de Fourier en dos dimensiones, y con la aplicación de filtros de paso alto y bajo. Se encontró que el metodo de "autocorrelación" es el mejor para separar "la vegetación" de "la montaña". Se aplicaron diversas técnicas a fin de cubrir ambos extremos: a) enfatizar detalles débiles en la cola, y b) penetrar en las regiones más intensas de la coma. Se lograron ambos objetivos. Detalles en la cola permitieron determinar velocidades de propagación de unos 50 a 90 kms/ seg. Se pudieron detectar no menos de tres perturbaciones en "Y", y una en 5? Co de Cisne). Se cree que las primeras están asociadas a eventos de desconexión. Se puede separar la cola de gas de la de polvo. Las fotos de color permiten enfatizar diferentes regiones espectrales con mayor claridad aún. El "balance" del color puede ser hecho con la computadora.

  7. Amateur Librarian: A Course in Critical Pedagogy

    Directory of Open Access Journals (Sweden)

    Tomislav Medak

    2017-10-01

    Full Text Available A proposal for a curriculum in amateur librarianship, developed through the activities and exigencies of the Public Library project. Drawing from a historic genealogy of public library as the institution of access to knowledge, the proletarian tradition of really useful knowledge and the amateur agency driven by technological development, the proposed curriculum covers a range of segments from immediately applicable workflows for scanning, sharing and using e-books, over politics and tactics around custodianship of online libraries, to applied media theory implicit in the practices of amateur librarianship. It situates the massive practice of amateur librarianship in the context of historic processes of disciplinary specialization and their technological amateurisation and the massive practice of commoning knowledge in in the context of uneven and combined development of the global knowledge economy. The proposal is made with further development, complexification and testing in mind during the future activities of the Public Library and affiliated organizations.

  8. Forward study on the amateur arts

    NARCIS (Netherlands)

    Andries van den Broek

    2010-01-01

    Original title: Toekomstverkenning kunstbeoefening Singing, playing an instrument, painting, sculpting, amateur dramatics, making films, writing a blog or a song…: almost half the Dutch population are engaged in artistic activity occasionally or even frequently. They give expression to this

  9. Comet Halley Returns. A Teacher's Guide, 1985-1986.

    Science.gov (United States)

    Chapman, Robert D.; Bondurant, R. Lynn, Jr.

    This booklet was designed as an aid for elementary and secondary school teachers. It is divided into two distinct parts. Part I is a brief tutorial which introduces some of the most important concepts about comets. Areas addressed include: the historical importance of Comet Halley; how comets are found and names; cometary orbits; what Comet Halley…

  10. Giotto observations of the bow shock at Comet Halley

    International Nuclear Information System (INIS)

    Formisano, V.; Amata, E.; Wilken, B.

    1986-01-01

    Preliminary results from the JPA instrument on Giotto indicate that Comet Halley, even on the flanks, has a bow shock which moves backwards and forwards over the spacecraft. To understand the structure properly will require more detailed investigation of the relationships between three particle populations, cometary ions, solar wind ions and electrons

  11. A ballistic mission to fly by Comet Halley

    Science.gov (United States)

    Boain, R. J.; Hastrup, R. C.

    1980-01-01

    The paper describes the available options, ballistic trajectory opportunities, and a preliminary reference trajectory that were selected as a basis for spacecraft design studies and programmatic planning for a Halley ballistic intercept mission in 1986. The paper also presents trajectory, performance, and navigation data which support the preliminary selection.

  12. Fast Variations In Spectrum of Comet Halley

    Science.gov (United States)

    Borysenko, S. A.

    The goal of this work is to research fast variations of spectral lines intensities in spectra of comet Halley. The present research was made on the basis of more then 500 high- resolution spectrogram obtained by L.M. Shulman and H.K. Nazarchuk in November- December, 1985 at the 6-m telescope (SAO, Russia). Some fast variations with different quasiperiods were detected in all the spectrograms. Quasiperiods of these variations were from 15 - 40 min to 1.5 - 2 hours. As data from spacecraft "Vega-2" show, more fast variations with quasiperiods 5 - 10 min are obviously present in cometary time variations. Only the most important lines so as C2, C3, CN, CH and NH2 were analyzed. False periods were checked by comparison of the power spectra of the variations with the computed spectral window of the data. Only false periods about 400 sec (the avarage period of exposition) were detected. An algorithm for analysis of locally Poisson's time series was proposed. Two types of fast variations are detected: 1)high amplitude variations with more long quasiperiods (1.5 - 2 hours) and the coefficient of crosscorrelations between line intensities about 0.9 - 0.95; 2)low amplitude variations with short periods (15 - 40 min), which look like white noise and have the coefficient of crosscorrelations about 0.1 - 0.3. This difference may be caused by nature of variations. The first type variations may be an effect of both active processes in cometary nucleus and streams of solar protons. Analysis of solar proton flux variation with energies >1 MeV in November - Decem- ber 1985 confirms the above-mentioned version. In the second case it may by only inner processes in the nucleus that generate the observed variations. For determination of general parameters of cometary atmosphere, such as the produc- tion rates of radicals C2, C3, CN, CH, and NH2 it was necessary to estimate the contri- bution of dust grains luminiscence into the continuum of the comet. Space and wave- length distribution

  13. Apple Watch for dummies

    CERN Document Server

    Saltzman, Marc

    2015-01-01

    Your all-encompassing guide to the Apple Watch Are you an Apple Watch enthusiast and want to master all of its features to impress friends and intimidate enemies? Or perhaps you're a less-than-tech-savvy newcomer to the ""wearable"" craze and want to get the most out of it? In Apple Watch For Dummies, you'll discover how this incredible device does way more than simply tell time. Through hands-on, easy-to-follow instruction, you'll find out how to send and receive text messages and emails, use Siri, find movie times, access your favorite apps and get directions]. Plus, you'll get a handle on

  14. From Casual Stargazer to Amateur Astronomer

    Science.gov (United States)

    Eagle, Dave

    The word amateur stems from the French word Amour, meaning "Lover Of". And there is a whole army of amateur astronomers around the world who just love doing astronomy. They don't get paid for the privilege of experiencing the sky in all its glory, but by making detailed observations they do make a very important contribution towards the Science. These observations are especially useful when organized as a collective effort. Citizen science has really taken off in the last few years and the GAIA project will soon be producing so much data, that the professionals just will not have enough manpower to tackle all the data. They will rely on amateurs sitting on their computers at home. But it is under a dark sky that astronomy really comes alive. The fact that you have picked up this book, must mean that you are interested in taking the hobby a step forward.

  15. Sustainable degrowth through more amateur economy

    DEFF Research Database (Denmark)

    Nørgaard, Jørgen

    2010-01-01

    (back) from the prof. economy to the amateur economy will be less productive than the prof. economy in terms of output per man hour, but often more 'productive' in generating satisfaction and happiness in the process. Such a shift can create more ultimate benefit (happiness), but less product output......By a simple descriptive model is illustrated how the role of labor input tothe economy will have to revised in a degrowth economy. A destinction is made btween the Professional (GDP) economy, driven by money, and the Amateur economy (voluntary) driven by love. Shifting some economic activities...

  16. The C-12/C-13 abundance ratio in Comet Halley

    International Nuclear Information System (INIS)

    Wyckoff, S.; Lindholm, E.; Wehinger, P.A.; Peterson, B.A.; Zucconi, J.M.

    1989-01-01

    The individual (C-13)N rotational lines in Comet Halley are resolved using high-resolution spectra of the CN B2Sigma(+)-X2Sigma(+) (0,0) band. The observe C-12/C-13 abundance ratio excludes a site of origin for the comet near Uranus and Neptune and suggests a condensation environment quite distinct from other solar system bodies. Two theories are presented for the origin of Comet Halley. One theory suggest that the comet originated 4.5 Gyr ago in an inner Oort cloud at a heliocentric distance greater than 100 AU where chemical fractionation led to the C-13 enrichment in the CN parent molecule prior to condensation of the comet nucleus. According to the other, more plausible theory, the comet nucleus condensed relatively recently from the interstellar medium which has become enriches in C-13 and was subsequently gravitationally captured by the solar system. 107 refs

  17. Dust-gas interaction deduced from Halley multicolour camera observations

    International Nuclear Information System (INIS)

    Huebner, W.F.; Delamere, W.A.; Keller, H.U.; Reitsema, H.J.; Schmidt, H.U.; Whipple, F.L.; Wilhelm, K.

    1986-01-01

    The dust and gas productions of Comet Halley were measured by the dust counter and the mass spectrometers on the Giotto spacecraft. These instruments give only little information about the spatial asymmetry of the activity. The asymmetry in the dust production is clearly evident from the dust jets seen in the Halley Multicolour Camera images. Since the dust is entrained by the gas, production must be similarly asymmetric. The intensity profiles along and across several dust jets are related to their source regions on the nucleus. Properties of the dust jets are investigated. A few compact, but highly active source regions on the nucleus produce most of the visible dust and can account for most of the gas produced by the comet. 2 refs

  18. Particle acceleration in the plasma fields near comet Halley

    International Nuclear Information System (INIS)

    Somogyi, A.J.; Erdoes, G.; Shapiro, V.D.; Shevchenko, V.I.

    1990-01-01

    Spacecraft VEGA-1 approached Halley comet to distances less than 10 million km in March 1986. It was equipped with devices capable to detect and measure the energies of charged particles (higher than 50 keV). After a survey of acceleration mechanisms the properties of the 50-800 keV charged particle fluxes observed in various regions around Halley comet are reported. In particular, the regions outside the cometary bow shock, the region between the bow shock and the cometopause, and inside the latter, especially in the magnetic pile-up region are considered. Possible mechanisms responsible for the accelerations of the particle fluxes described are discussed. (author) 73 refs.; 7 figs.; 3 tabs

  19. 3 micron spectrophotometry of Comet Halley - Evidence for water ice

    Science.gov (United States)

    Bregman, Jesse D.; Tielens, A. G. G. M.; Witteborn, Fred C.; Rank, David M.; Wooden, Diane

    1988-01-01

    Structure has been observed in the 3-3.6 micron preperihelion spectrum of Comet Halley consistent with either an absorption band near 3.1 microns or emission near 3.3 microns. The results suggest that a large fraction of the water molecules lost by the comet are initially ejected in the form of small ice particles rather than in the gas phase.

  20. On the formation of meteor showers of comet Halley

    International Nuclear Information System (INIS)

    Babadzhanov, P.B.; Obrubov, J.V.; Pushkarev, A.N.; Hajduk, A.

    1987-01-01

    The orbits of test particles ejected from the nucleus of Halley comet at its perihelion passage in 1910 with different velocities are studied for the next three passages of the comet up to 2134 taking into consideration perturbations from all planets. Some characteristics of the stream formation are presented. The calculations show that the return of the comet to its perihelion cannot produce an immediate influence on the activity of its meteor showers. (author). 2 figs., 1 tab., 13 refs

  1. Spacecraft environment during the GIOTTO-Halley encounter: a summary

    International Nuclear Information System (INIS)

    Young, D.T.

    1983-01-01

    A summary of the present volume is presented in which the separate disciplines are drawn together to give an overview of the spacecraft environment during the GIOTTO-Halley interaction. Specific recommendations are made as to how the work of the Plasma Environment Working Group might continue to contribute to the GIOTTO program during encounter and post-encounter data analysis. 28 references, 3 tables

  2. Learning AirWatch

    CERN Document Server

    Dunkerley, Mark

    2015-01-01

    If you are a technical professional who wants to dive deeper into the functionality offered by AirWatch or manage the solution, then this book will help you choose the best set of configuration, device management, and monitoring options that you can use to effectively manage your EMM implementation.

  3. MOLECULAR OXYGEN IN OORT CLOUD COMET 1P/HALLEY

    Energy Technology Data Exchange (ETDEWEB)

    Rubin, M.; Altwegg, K. [Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern (Switzerland); Dishoeck, E. F. van [Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden (Netherlands); Schwehm, G. [ESA (retired) Science Operations Department, ESTEC, Keplerlaan 1, 2201 AZ Noordwijk (Netherlands)

    2015-12-10

    Recently, the ROSINA mass spectrometer suite on board the European Space Agency's Rosetta spacecraft discovered an abundant amount of molecular oxygen, O{sub 2}, in the coma of Jupiter family comet 67P/Churyumov–Gerasimenko of O{sub 2}/H{sub 2}O = 3.80 ± 0.85%. It could be shown that O{sub 2} is indeed a parent species and that the derived abundances point to a primordial origin. Crucial questions are whether the O{sub 2} abundance is peculiar to comet 67P/Churyumov–Gerasimenko or Jupiter family comets in general, and also whether Oort cloud comets such as comet 1P/Halley contain similar amounts of molecular oxygen. We investigated mass spectra obtained by the Neutral Mass Spectrometer instrument during the flyby by the European Space Agency's Giotto probe of comet 1P/Halley. Our investigation indicates that a production rate of O{sub 2} of 3.7 ± 1.7% with respect to water is indeed compatible with the obtained Halley data and therefore that O{sub 2} might be a rather common and abundant parent species.

  4. 75 FR 78169 - Amateur Service Rules

    Science.gov (United States)

    2010-12-15

    ... by the applicant is from the group of call signs corresponding to the same or lower class of operator... amateur service rules to amend part 97 to remove obsolete references to Technician Plus Class operator... with the privileges authorized to the operator class specified on the license grant. (b) The person...

  5. Amateuring in Music and Its Rivals

    Science.gov (United States)

    Regelski, Thomas A.

    2007-01-01

    With its focus on reason and science, the 18th century began a history of increased specialization. As a result, professional degrees and certificates eventually came to define and control practices that had once been the domains of amateurs. By the end of the 19th century, many practices of lay enthusiasts had been pushed aside; where they were…

  6. 75 FR 3886 - Amateur Service Rules

    Science.gov (United States)

    2010-01-25

    ... message, ``get form.'' Commenters will receive a sample form and directions in reply. Commenters filing... devoted to amateur service activities consistent with this part. After [date reserved], no additional club... license trustee, submitted by a person who is not the trustee of record. * * * * * (d) A person may...

  7. Opportunities for practising the amateur arts

    NARCIS (Netherlands)

    Andries van den Broek

    2010-01-01

    Original title: Mogelijkheden tot kunstbeoefening in de vrije tijd Singing, playing an instrument, painting, sculpting, amateur dramatics, making films, writing a blog or a song…: almost half the Dutch population are engaged in artistic activity occasionally or even frequently. They give

  8. 75 FR 27200 - Amateur Service Rules

    Science.gov (United States)

    2010-05-14

    ... from, stations authorized by other nations in the fixed, mobile except aeronautical mobile, and... service; and (2) Other nations in the mobile except aeronautical mobile service. (i) Amateur stations... from, international broadcast stations whose programming is intended for use within Region 1 or Region...

  9. A GazeWatch Prototype

    DEFF Research Database (Denmark)

    Paulin Hansen, John; Biermann, Florian; Møllenbach, Emile

    2015-01-01

    We demonstrate potentials of adding a gaze tracking unit to a smartwatch, allowing hands-free interaction with the watch itself and control of the environment. Users give commands via gaze gestures, i.e. looking away and back to the GazeWatch. Rapid presentation of single words on the watch displ...... provides a rich and effective textual interface. Finally, we exemplify how the GazeWatch can be used as a ubiquitous pointer on large displays....

  10. Chronic Traumatic Brain Injury in Amateur Boxers

    Directory of Open Access Journals (Sweden)

    M. Rahmati

    2008-04-01

    Full Text Available Introduction & objective: Despite of young and adolescence intent to the boxing sport, because of dominant aggression and direct blows contact to head, face and central nervous system, it is continuously criticize by different groups. The groups of sporting and physician conventions are distinguished boxing with physical and neuropsychological disorders and some groups believe that side effects of this sport are not more than other sports. For this base the aim of this study was to determine the chronic traumatic brain injury in a group amateur boxers.Materials & Methods: In a case-control study, three groups of sport men were considered, each group contained 20 randomly selected cases. The first group were amateur boxers with 4 years minimal activity(directly has been presented to the head blows, second group were amateur soccer players with 4 years minimal activity(has been presented to the not very severe head blows, third group were non athlete subjects .The groups were matched in weight, height, age and education .To understand brain disorder interview by medicine method has been used, then Wiskancin, Bonardele, Bender geshtalt, Kim karad visual memory, Benton and wechler memory (Alef type tests has been performed and EEG has got in the same hour and condition.Results: The homogeneity of between group variances was gained by the statistical method. Also between structural–visual abilities neuropsychological aspect in groups, significant difference has been gained (p= 0.000. In Kim karad visual memory test at the mild and long term visual memory deficit, significant differences between three groups was observed (P= 0.000, P=0.009 that least score has been belonged to the boxers. Also in boxers 6 abnormal EEGs is observed.Conclusion: It can be said that of four years amateur boxing can affect on boxers visual and memory perception and their spatial orientation. Additionally our study have showed that amateur boxing has a significant

  11. New Image of Comet Halley in the Cold

    Science.gov (United States)

    2003-09-01

    VLT Observes Famous Traveller at Record Distance Summary Seventeen years after the last passage of Comet Halley , the ESO Very Large Telescope at Paranal (Chile) has captured a unique image of this famous object as it cruises through the outer solar system. It is completely inactive in this cold environment. No other comet has ever been observed this far - 4200 million km from the Sun - or that faint - nearly 1000 million times fainter than what can be perceived with the unaided eye. This observation is a byproduct of a dedicated search [1] for small Trans-Neptunian Objects, a population of icy bodies of which more than 600 have been found during the past decade. PR Photo 27a/03 : VLT image (cleaned) of Comet Halley PR Photo 27b/03 : Sky field in which Comet Halley was observed PR Photo 27c/03 : Combined VLT image with star trails and Comet Halley The Halley image ESO PR Photo 27a/03 ESO PR Photo 27a/03 [Preview - JPEG: 546 x 400 pix - 207k] [Normal - JPEG: 1092 x 800 pix - 614k] [FullRes - JPEG: 1502 x 1100 pix - 1.1M] Caption : PR Photo 27a/03 shows the faint, star-like image of Comet Halley (centre), observed with the ESO Very Large Telescope (VLT) at the Paranal Observatory on March 6-8, 2003. 81 individual exposures from three of the four 8.2-m VLT telescopes with a total exposure time of about 9 hours were combined to show the magnitude 28.2 object. At this time, Comet Halley was about 4200 million km from the Sun (28.06 AU) and 4080 million km (27.26 AU) from the Earth. All images of stars and galaxies in the field were removed during the extensive image processing needed to produce this unique image. Due to the remaining, unavoidable "background noise", it is best to view the comet image from some distance. The field measures 60 x 40 arcsec 2 ; North is up and East is left. Remember Comet Halley - the famous "haired star" that has been observed with great regularity - about once every 76 years - during more than two millennia? Which was visited by an

  12. Properties of comet Halley derived from thermal models and astrometric data

    International Nuclear Information System (INIS)

    Hechler, F.W.; Morley, T.A.; Mahr, P.

    1986-01-01

    The motion of a comet nucleus is influenced by outgassing forces. The orbit determination from astrometric data of comet Halley using empiric force and observation bias models and the incorporation of thermal models developed at ESOC into the orbit determination allows to draw some conclusions on the comet Halley dynamics and physics. 21 references

  13. Iran - waiting and watching

    International Nuclear Information System (INIS)

    Malhotra, T. C.

    2007-01-01

    Global oil companies are reported to be divided on the issue of possible energy deals in Iran. Some companies may adopt wait and watch policy before singing a fresh deal with Iran, but there are some oil companies, those are still interested to sign a deal with Iran, despite the risks, even as Tehran decided to expand its uranium enrichment programme rather than complying with a UN Security Council ultimatum to freeze it, which clears the path for further harsher sanctions (author) (ml)

  14. Quantum field theory for the gifted amateur

    CERN Document Server

    Lancaster, Tom

    2014-01-01

    Quantum field theory is arguably the most far-reaching and beautiful physical theory ever constructed, with aspects more stringently tested and verified to greater precision than any other theory in physics. Unfortunately, the subject has gained a notorious reputation for difficulty, with forbidding looking mathematics and a peculiar diagrammatic language described in an array of unforgiving, weighty textbooks aimed firmly at aspiring professionals. However, quantum field theory is too important, too beautiful, and too engaging to be restricted to the professionals. This book on quantum field theory is designed to be different. It is written by experimental physicists and aims to provide the interested amateur with a bridge from undergraduate physics to quantum field theory. The imagined reader is a gifted amateur, possessing a curious and adaptable mind, looking to be told an entertaining and intellectually stimulating story, but who will not feel patronised if a few mathematical niceties are spelled out in ...

  15. Marathon Running for Amateurs: Benefits and Risks

    OpenAIRE

    Farhad Kapadia

    2017-01-01

    The habitual level of physical activity of the human race has significantly and abruptly declined in the last few generations due to technological developments. The professional societies and government health agencies have published minimum physical activity requirement guidelines to educate the masses about the importance of exercise and to reduce cardiovascular (CV) and all-cause mortality at the population level. There is growing participation in marathon running by amateur, middle-aged c...

  16. How Online Access Changed Amateur Video Editing

    OpenAIRE

    Eugster Benjamin

    2014-01-01

    Digital technology has often been discussed in relation to how it changed either the production or the reception of audiovisual cultures. This paper will consider a combination of both as a crucial part in understanding strategies of inter- and transmedial amateur creativity. Based on an experimental ethnography of the online video subgenre/subculture “YouTubePoop,” the paper will elaborate on the connection between the individual experience and the creation of digital media. The loose collec...

  17. Observations of Halley's Comet by the Solar Maximum Mission (SMM)

    Science.gov (United States)

    Niedner, M. B.

    1986-01-01

    Solar Maximum Mission coronagraph/polarimeter observations of large scale phenomena in Halley's Comet are discussed. Observations of the hydrogen coma with the UV spectrometer are considered. It is concluded that coronograph/polarimeter observations of the disconnection event, in which the entire plasma tail uproots itself from the head of the comet, is convected away in the solar wind at speeds in the 50 to 100 km/sec range (relative to the head), and is replaced by a plasma tail constructed from folding ion-tail rays, are the most interesting.

  18. Polarization images of the inner regions of Comet Halley

    International Nuclear Information System (INIS)

    Eaton, N.; Scarrott, S.M.; Warren-Smith, R.F.

    1988-01-01

    The present CCD polarimeter images of intensity and polarization within the near-nucleus regions of Comet Halley show the occurrence of dust jets on two days in January, 1986, which exhibit increased polarizations above the level of the surrounding coma. Three possible reasons for the enhanced polarization in the jets are considered, assuming that the polarization increase is due to dust grains: (1) the size distribution of the grains could be different from the surrounding coma; (2) the material of the grains could have a different refractive index; and (3) the ratio of dust to gas emission could be different in the jets. 13 references

  19. Dust photometry in the near nucleus region of comet Halley

    International Nuclear Information System (INIS)

    Szegoe, K.; Szatmary, Z.; Kondor, A.; Merenyi, E.; Toth, I.; Smith, B.A.

    1988-08-01

    The dust-jet radial brightness has been analyzed along jet cores on images taken by the tv experiment aboard VEGA 2 spacecraft, during the close encounter with comet Halley in 1986 March. Applying the RFIT code for fitting the data obtained it was shown that there is a breakpoint in the radial brightness distribution which occurs at about 40 km above the surface. These results are interpreted as consequences of the heat shock induced disintegration of dust particles as they are ejected into the near-nucleus environment. (R.P.) 22 refs.; 4 tabs

  20. Infrared color gradient in the inner coma of Comet Halley

    International Nuclear Information System (INIS)

    Campins, H.; Rieke, M.J.; Rieke, G.H.

    1989-01-01

    A well-defined gradient is noted in the J-H and H-K colors of near-IR images obtained for Comet Halley in November, 1985, within about 8000 km of the nucleus; the bluest colors are at the photocenter, in conjunction with surface brightness profiles that are steeper than those expected. The color gradient and the brightness profiles are both explainable by the present analysis in terms of the presence of volatile, dirty-ice grains in the inner coma. An outburst of Rayleigh-scattering dust particles (unsupported by spacecraft measurements obtained to date) may also account for the observational data. 27 references

  1. First spacecraft observations of energetic particles near comet Halley

    International Nuclear Information System (INIS)

    Somogyi, A.J.; Szegoe, K.; Gringauz, K.I.

    1986-04-01

    The TUENDE-M energetic particle instrument on board of VEGA-1 detected intense fluxes of energetic (>- 40 keV) ions in the vicinity of comet Halley, at a distance of 10sup(7) km. Three regions of different ion characteristics were identified. An outer region at several 10sup(6) km contains pick up ions in the solar wind. A second region of an extent of several 10sup(5) km inside the bow shock contains the most intense fluxes, whereas the innermost region of 10sup(4) km is characterized by lower intensities and sharp spikes around closest approach (8900 km from the nucleus). (author)

  2. Amateur astronomers in support of observing campaigns

    Science.gov (United States)

    Yanamandra-Fisher, P.

    2014-07-01

    The Pro-Am Collaborative Astronomy (PACA) project evolved from the observational campaign of C/2012 S1 or C/ISON. The success of the paradigm shift in scientific research is now implemented in other comet observing campaigns. While PACA identifies a consistent collaborative approach to pro-am collaborations, given the volume of data generated for each campaign, new ways of rapid data analysis, mining access, and storage are needed. Several interesting results emerged from the synergistic inclusion of both social media and amateur astronomers: - the establishment of a network of astronomers and related professionals that can be galvanized into action on short notice to support observing campaigns; - assist in various science investigations pertinent to the campaign; - provide an alert-sounding mechanism should the need arise; - immediate outreach and dissemination of results via our media/blogger members; - provide a forum for discussions between the imagers and modelers to help strategize the observing campaign for maximum benefit. In 2014, two new comet observing campaigns involving pro-am collaborations have been identified: (1) C/2013 A1 (C/Siding Spring) and (2) 67P/Churyumov-Gerasimenko (CG). The evolving need for individual customized observing campaigns has been incorporated into the evolution of PACA (Pro-Am Collaborative Astronomy) portal that currently is focused on comets: from supporting observing campaigns for current comets, legacy data, historical comets; interconnected with social media and a set of shareable documents addressing observational strategies; consistent standards for data; data access, use, and storage, to align with the needs of professional observers. The integration of science, observations by professional and amateur astronomers, and various social media provides a dynamic and evolving collaborative partnership between professional and amateur astronomers. The recent observation of comet 67P, at a magnitude of 21.2, from Siding

  3. International mussel watch

    International Nuclear Information System (INIS)

    Farrington, J.W.; Tripp, B.W.

    1993-01-01

    Deliberate and inadvertent discharges of chemical contaminants of environmental concern to the world's coastal ocean will continue for the foreseeable future, as human population increases and human habitation intensifies in the coastal zone worldwide. The goal of the International Mussel Watch Project is to provide an assessment of the status and trends of chemical contaminants in the world's coastal waters. These data are critical for protecting both the health of people who consume seafood and the health of coastal ecosystems. The International Mussel Watch Project is a global-scale monitoring program based on the concept of a sentinel organism capable of detecting trends in concentrations of several important marine contaminants. These included chlorinated pesticides, fossil-fuel hydrocarbons, and radionuclides from the nuclear fuel cycle and nuclear weapons testing fallout. Since the 1970's, scientists of several countries have been using common bivalve organisms, such as the blue mussels and oysters, to monitor chemical contaminants in coastal waters. Bivalve mollusks are good monitors for several reasons that include their ability to bioconcentrate the chemical contaminants of interest and their sedentary nature, which makes them representative of a specific place

  4. Color gradients in the coma of P/Halley

    International Nuclear Information System (INIS)

    Meech, K.

    1988-01-01

    Some important information relevant to the understanding of the gas/dust dynamics near the surface of a comet nucleus concerns knowledge of the grain composition and scattering properties as well as the particle size distribution of dust in the coma. Ground based measurements of light scattered from the dust comae can provide some information about the physical grain properties, in particular about the mean optically dominant grain size. Optical spectra of continua of nine comets presented by Jewitt and Meech, 1986, show that all of the scattered light is reddened with respect to the Sun. There is significant scatter in the amount of reddening seen for different comets. In the near IF regions, the reddening decreases until near 2 to 3 micrometers where the reflectivity is nearly neutral. It is of particular interest to see if there are any observable changes in the grain size distribution during outburst. Although no coma colar changes were observed during the Nov. 1985 outbursts, a color gradient within the coma has been observed in Halley. Radial color gradients in J, H, and K images of Halley as reported by Campins have not been observed by the author

  5. Reduction and analysis of photometric data on Comet Halley

    International Nuclear Information System (INIS)

    Belton, M.J.S.; Fink, U.; Wehinger, P.; Spinrad, H.; Meech, K.

    1988-01-01

    The discovery that periodic variations in the brightness of Comet Halley were characterized by two unrelated frequencies implies that the nucleus is in a complex state of rotation. It either nutates as a result of the random addition of small torque perturbations accumulated over many perihelion passages, or the jet activity torques are so strong that it precesses wildly at each perihelion passage. To diagnose the state of nuclear rotation, researchers began a program to acquire photometric time series of the comet as it recedes from the sun. The intention is to observe the decay of the comet's atmosphere and then, when it is unemcumbered by the light of the coma, follow the light variation of the nucleus itself. The latter will be compared with preperihelion time series and the orientation of the nucleus at the time of Vega and Giotto flybys and an accurate rotational ephemeris constructed. Halley was observed on 38 nights during 1987 and approximately 21 nights in 1988. The comet moved from 5 AU to 8.5 AU during this time. The brightness of the coma was found to rapidly decrease in 1988 as the coma and cometary activity collapses. The magnitude in April 1988 was 19 mag (visual) and it is predicted that the nucleus itself will be the major contributor to the brightness in the 1988 and 1989 season

  6. IUE observations of the evolution of Comet Wilson (1986l) - comparison with P/Halley

    International Nuclear Information System (INIS)

    Roettger, E.E.; Feldman, P.D.; A'hearn, M.F.; Festou, M.C.; Mcfadden, L.A.

    1989-01-01

    IUE observations of Comet Wilson from September 1986 to November 1987, through perihelion, allow a comparison to be conducted between this 'new' comet and the highly evolved P/Halley, at comparable heliocentric distances. The temporal decreases of both OH and dust in Comet Wilson near perihelion were monotonic and slow, by contrast to Comet Halley's rapid fluctuations. Despite these differences, relative gas abundances were similar within a factor of about 2 for comparable heliocentric and geocentric distances; this indicates that P/Halley's in situ gas measurements may be typical of comets generally. 33 refs

  7. Presence While Watching Movies

    Directory of Open Access Journals (Sweden)

    Tom Troscianko

    2011-05-01

    Full Text Available “Presence” is the illusion of being in a mediated experience rather than simply being an observer. It is a concept often applied to the question of realism of virtual environments. However, it is equally applicable to the act of watching a movie. A movie provides a markedly different visual environment to that given by the natural world—particularly because of frequent edits. And yet, the audience in a movie achieves high levels of presence. We investigate the relationship between presence and the optical and temporal parameters of movies. We find effects of mean shot length, colour/b&w, and 3D/2D. We find that short shots, while being unnatural, are associated with high levels of presence. We consider why such artificial stimuli should appear so real and immersive.

  8. Neighborhood Environmental Watch Network

    International Nuclear Information System (INIS)

    Sanders, L.D.

    1993-01-01

    The Neighborhood Environmental Watch Network (NEWNET) is a regional network of environmental monitoring stations and a data archival center that supports collaboration between communities, industry, and government agencies to solve environmental problems. The stations provide local displays of measurements for the public and transmit measurements via satellite to a central site for archival and analysis. Station managers are selected from the local community and trained to support the stations. Archived data and analysis tools are available to researchers, educational institutions, industrial collaborators, and the public across the nation through a communications network. Los Alamos National Laboratory and the Environmental Protection Agency have developed a NEWNET pilot program for the Department of Energy. The pilot program supports monitoring stations in Nevada, Arizona, Utah, Wyoming, and California. Additional stations are being placed in Colorado and New Mexico. Pilot stations take radiological and meteorological measurements. Other measurements are possible by exchanging sensors

  9. Alcohol use among amateur sportsmen in Ireland

    Directory of Open Access Journals (Sweden)

    Kenny Susan C

    2010-11-01

    Full Text Available Abstract Background The objective of this study was to establish baseline data on alcohol consumption patterns, behaviours and harms among amateur sportsmen in the Republic of Ireland. Findings The study presents findings from the baseline survey for a cluster randomised controlled trial to evaluate the effectiveness of a community intervention programme to reduce problem alcohol use among a representative sample of Gaelic Athletic Association (GAA clubs in two counties in the Republic of Ireland. Self reported alcohol use, prevalence of binge drinking, AUDIT scores and alcohol-related harms were assessed in amateur GAA sportsmen aged 16 years and over. Nine hundred and sixty (960 players completed questionnaires (72% response rate. Mean age was 24.0 years (S.D. 5.2. Of those aged 18 years or over, 75% had post-primary education; most (864, 90% were current drinkers and 8.2% were regular smokers. The self-reported average yearly alcohol consumption was 12.5 litres. Almost one third (31% of current drinkers reported drinking over the recommended limit of 21 standard drinks per week and just over half (54.3% reported drinking 6 or more standard drinks in a row at least once a week (regular binge drinking. Of those who (self completed the Alcohol Use Disorder Identification Test (AUDIT questionnaire, three-quarters (74.7% had a score of 8 or more; 11.5% had a score of 20 or above warranting referral for diagnostic evaluation and treatment. Almost all (87.6% of the 864 drinkers reported experiencing at least one harm due to their drinking. These alcohol misuse outcomes were higher than those found in a nationally representative sample of males of a similar age. There were strong associations between regular binge drinking and reporting harms such as being in a fight (adjusted odds ratio (OR 2.02, p Conclusions These male amateur sportsmen reported high rates of alcohol consumption and alcohol-related harm.

  10. South African Radio League Introduction to Amateur Radio: A study guide for the Radio Amateur Examination

    CSIR Research Space (South Africa)

    Burger, Chris

    2016-01-01

    Full Text Available ) .............................................................................. 15 1.12 The Radio Amateurs’ Examination .......................................................................... 15 1.13 Restrictions on the Use of an Amateur Radio Station .............................................. 16 Chapter 2: Operating... ............................................................................................. 116 14.1 Theory of Operation ............................................................................................... 116 14.2 Turns Ratio...

  11. Happy degrowth through more amateur economy

    DEFF Research Database (Denmark)

    Nørgaard, Jørgen

    2013-01-01

    to a brief historical overview of the role of work, including turning points in the 1930s in the United States, when work sharing was displaced by work creation through consumerism, and, in the post-war economy when GDP became the dominant economic indicator. The paper proposes the aim of a happy...... and sustainable degrowth for affluent countries, implying the transfer of some activities from the professional economy to the less ‘labor’ productive amateur economy. This will tend to reduce overall labor productivity and hence resource throughput, but increase satisfaction and happiness. A key element...

  12. Earth-return trajectory options for the 1985-86 Halley opportunity

    Science.gov (United States)

    Farquhar, R. W.; Dunham, D. W.

    1982-01-01

    A unique and useful family of ballistic trajectories to Halley's comet is described. The distinguishing feature of this family is that all of the trajectories return to the Earth's vicinity after the Halley intercept. It is shown that, in some cases, the original Earth-return path can be reshaped by Earth-swingby maneuvers to achieve additional small-body encounters. One mission profile includes flybys of the asteroid Geographos and comet Tempel-2 following the Halley intercept. Dual-flyby missions involving comets Encke and Borrelly and the asteroid Anteros are also discussed. Dust and gas samples are collected during the high-velocity (about 70 km/sec) flythrough of Halley, and then returned to a high-apogee Earth orbit. Aerobraking maneuvers are used to bring the sample-return spacecraft to a low-altitude circular orbit where it can be recovered by the Space Shuttle.

  13. Exemplary Amateurism: Thoughts on DIY Urbanism

    Directory of Open Access Journals (Sweden)

    Ann Deslandes

    2013-02-01

    Full Text Available Do-It-Yourself (DIY urbanism has become increasingly recognised as a non-professional and non-technocratic practice of urban alteration and community building. Already thus marked as ‘amateur’ in the contemporary sense (where the lines between amateur, professional, producer and consumer are significantly blurred, two of its key features are support for ‘proam’ cultural production and the ‘meanwhile’ use of commercial buildings. Within this, DIY urbanism is an important reference to economic and spatial scarcity in the Australian, English and North American cities where it has manifested as a discourse. The reference is particularly evident in the proximity to marginal urban space that participants in DIY urbanism share with other potential users of that space, which includes people experiencing primary homelessness. It is through this proximity that DIY urbanism works as a kind of ‘exemplary amateurism’. DIY urbanism demonstrates spatial scarcity in the city — a phenomenon in which amateur labour, 'meanwhile' use of buildings and homelessness are implicated.

  14. 75 FR 46854 - Amendment of the Commission's Rules Regarding Amateur Radio Service Communications During...

    Science.gov (United States)

    2010-08-04

    ... Civil Emergency Service (RACES), the Amateur Radio Relay League's Amateur Radio Emergency Service (ARES... nation with Critical Infrastructure and Key Resources (CIKR) as described in the National Infrastructure...

  15. Spectrophotometry of comets Giacobini-Zinner and Halley

    International Nuclear Information System (INIS)

    Tegler, S.C.; O'dell, C.R.

    1987-01-01

    Optical window spectrophotometry was performed on comets Giacobini-Zinner and Halley over the interval 300-1000 nm. Band and band-sequence fluxes were obtained for the brightest features of OH, CN, NH, and C2, special care having been given to determinations of extinction, instrumental sensitivities, and corrections for Fraunhofer lines. C2 Swan band-sequence flux ratios were determined with unprecedented accuracy and compared with the predictions of the detailed equilibrium models of Krishna Swamy et al. (1977, 1979, 1981, and 1987). It is found that these band sequences do not agree with the predictions, which calls into question the assumptions made in deriving the model, namely resonance fluorescence statistical equilibrium. Suggestions are made as to how to resolve this discrepancy. 16 references

  16. Spectrophotometry of comets Giacobini-Zinner and Halley

    Science.gov (United States)

    Tegler, Stephen C.; O'Dell, C. R.

    1987-01-01

    Optical window spectrophotometry was performed on comets Giacobini-Zinner and Halley over the interval 300-1000 nm. Band and band-sequence fluxes were obtained for the brightest features of OH, CN, NH, and C2, special care having been given to determinations of extinction, instrumental sensitivities, and corrections for Fraunhofer lines. C2 Swan band-sequence flux ratios were determined with unprecedented accuracy and compared with the predictions of the detailed equilibrium models of Krishna Swamy et al. (1977, 1979, 1981, and 1987). It is found that these band sequences do not agree with the predictions, which calls into question the assumptions made in deriving the model, namely resonance fluorescence statistical equilibrium. Suggestions are made as to how to resolve this discrepancy.

  17. Airborne spectrophotometry of Comet Halley from 5 to 9 microns

    Science.gov (United States)

    Campins, H.; Bregman, J. D.; Witteborn, F. C.; Wooden, D. H.; Rank, D. M.; Cohen, M.; Allamandola, Louis J.; Tielens, Alexander G. G. M.

    1986-01-01

    Spectrophotometry from 5 to 9 microns (resolution = 0.02) of comet Halley was obtained from the Kuiper Airborne Observatory on 1985 Dec. 12.1 and 1986 April 8.6 and 10.5 UT. Two spectral features are apparent in all the observations, one from 5.24 to 5.6 microns, and the silicate emission feature which has an onset between 7 and 8 microns. There is no evidence for the 7.5 microns feature observed by the Vega 1 spacecraft; the large difference between the areal coverage viewed from the spacecraft and the airplane may explain the discrepancy. Color temperatures significantly higher than a blackbody indicate that small particles are abundant in the coma. Significant spatial and temporal variations in the spectrum show trends similar to those observed from the ground.

  18. Fabry-Perot observations of Comet Halley H2O(+)

    International Nuclear Information System (INIS)

    Scherb, F.; Roesler, F.L.D.; Harlander, J.; Magee-sauer, K.

    1990-01-01

    Fabry-Perot scanning spectrometer observations of Comet Halley's H 2 O(+) emissions have yielded 6158.64 and 6158.85 A spin doublet data at distances in the range of 0 to 2 million km from the comet heat in the antisunward direction. Cometary plasma outflow velocities were ascertained on the basis of the emissions' Doppler shifts, yielding results that were mostly but not exclusively consistent with the plasma's constant antisunward acceleration; the acceleration varied from night to night of observations over a 30-300 cm/sec range. The unusual plasma kinematics of December 14-15, 1985, and January 10, 1986, may be associated with the tail-disconnection activity observed by others. 30 refs

  19. The outflow speed of the coma of Halley's comet

    International Nuclear Information System (INIS)

    Combi, M.R.

    1989-01-01

    Data concerning the outflow speed of the coma of Comet Halley are studied in relation to a generalization of the coupled pure-gas-dynamic/Monte Carlo model of Combi and Smyth (1988) to include the dusty-gas dynamics of the inner coma. Measurements made by the Giotto neutral-gas spectrometer, IR water observations from the Kuiper Airborne Observatory, and Doppler radio line profiles of HCN and OH are used to examine the radial dependence of the outflow speed, the asymmetry in the outflow speed, and the overall heliocentric distance dependence of the Doppler profiles, respectively. The results suggest that the model makes it possible to understand the gross long-term behavior and radial structure of the dynamics of the cometary coma. 23 refs

  20. Water group ion distributions in the midcometosheath of comet Halley

    Science.gov (United States)

    Huddleston, D. E.; Neugebauer, M.; Goldstein, Bruce E.

    1993-01-01

    In the midcometosheath of comet Halley (1 x 10(exp 5) to 2 x 10(exp 5) km from the nucleus) the center-of-mass plasma frame is approximately the bulk flow velocity of the cometary ions, and the Alfven wave speed is an appreciable fraction of the flow speed. Here, the peaks of the water group ion distributions observed by the Giotto ion mass spectrometer are at velocities consistently below the expected pickup speed. It is shown that this effect is consistent with the scattering of the new pickup ions onto a bispherical shell distribution. The model does not fit the data inside approximately 1.2 x 10(exp 5) km, however, possibly as a result of the growing importance of collisions or the presence of other processes such as scattering on obliquely propagating magnetosonic waves.

  1. Reception and dissemination of American amateur telescope making in Sweden

    Science.gov (United States)

    Karnfelt, Johan

    2017-04-01

    This paper discusses the appropriation of the American Amateur Telescope Making (ATM) movement in Sweden in the 1940s and 1950s. A key player was the Swedish Astronomical Society, which in 1943, and inspired by the American example, launched a campaign to raise interest in ATM and disseminate the necessary knowledge amongst potential amateur astronomers. The campaign was successful and in just a few years it quadrupled the number of amateurs with access to telescopes. Swedish amateurs kept on building telescopes through the 1950s, but the activities then stalled with the introduction of cheap mass-market telescopes. The appropriation of ATM in Sweden is an important example of how technical innovations have shaped the course of amateur astronomy.

  2. Country watch. Brazil.

    Science.gov (United States)

    Szterenfeld, C; Lopes, V

    1993-01-01

    A fictional story using publicity-type language was depicted in an AIDS prevention video produced by the Health in Prostitution Project in Rio de Janeiro to support its work with prostitutes. The video was produced through the volunteer efforts of a professional cast and crew who used cultural entertainment codes to raise awareness. Although both established and new actors participated, the cast was comprised of largely famous soap opera and movie artists. This approach was chosen was the understanding that Brazilians watch soap operas 4-5 hours/day and would therefore readily recognize and pay attention to messages conveyed by the protagonists. The video was shot 2 weeks before Carnival when most actors usually rest and received wide media coverage and attention from the public sector. Prostitutes participated in all stages of production, from script-writing to casting to final editing. The video, Venus Fire, describes a pleasure lottery of which the prize is a lucky condom. The video was officially released on World AIDS Day 1992, and broadcast nationwide in January 1993. It was then subsequently aired in public squares and other street worker sites with question-and-answer sessions and public debates among average audience of 200-300 people. Similar health projects elsewhere in Brazil have also show the film with very good audience response. The prostitutes are happy that their profession is being treated with respect, while clients are attracted by the sexy images.

  3. SPORTS WATCHING CULTURE AMONG MALAYSIANS

    Directory of Open Access Journals (Sweden)

    Gunathevan Elumalai

    2015-12-01

    Full Text Available Background: Ardent sports watching will lead an individual to engage in sports and recreational activities continuously, while it also creates a sports culture among Malaysians. Sports watching culture is actually an intellectual activity. It is capable of evaluating behaviour, moral values and the level of appreciation of every spectator. Methods: This survey was conducted to identify the sports viewing culture among Malaysians. A cluster sampling method was used to select 6000 respondents from 30 million Malaysian population. Respondents were selected from urban (50% and rural areas (50%. Ethnically 56% were Malays, Sarawak and Sabah natives were 11%, Chinese 25% and finally Indians 7%. The respondents age categories were 12 to 19 years (30%, 20 to 25 years (50%, 56 and above (20%. A questionnaire developed by the research team was used to collect data. The quantitative data were analysed using Statistical Package for Social Sciences (SPSS version 21.0 for windows. Results: The findings indicate that from 5864 respondents who answered the questionnaire in full, a total of 4553 people or 77.6% watch sporting events, while a total of 1311 people or 22.4% have stated not watching any sports activities. Comparison by gender showed that 85.2% of the 2482 males watch sports events while among the female 70.2% of the 2071 watch sports events. In the category of those who do not watch, the female are higher at 29.8% than the males at 14.8%. In terms of ethnicity the Malays 80.2%. Chinese 64.6%, Indians 81.9%, natives of Sabah 94.0%, natives of Sarawak 77.6% like to watch sports events. Residential locations showed no significant differences as 78.7% of urban respondents watch sports events compared to 76.8% of rural communities. Conclusion: The findings indicated that majority of Malaysians having fun in watching sports activities. Gender still plays a role in the involvement and enjoyment of sports events either as a player or supporter. Ethnicity

  4. Alcohol use among amateur sportsmen in Ireland.

    LENUS (Irish Health Repository)

    O'Farrell, Anne M

    2010-11-18

    ABSTRACT: BACKGROUND: The objective of this study was to establish baseline data on alcohol consumption patterns, behaviours and harms among amateur sportsmen in the Republic of Ireland. FINDINGS: The study presents findings from the baseline survey for a cluster randomised controlled trial to evaluate the effectiveness of a community intervention programme to reduce problem alcohol use among a representative sample of Gaelic Athletic Association (GAA) clubs in two counties in the Republic of Ireland. Self reported alcohol use, prevalence of binge drinking, AUDIT scores and alcohol-related harms were assessed in amateur GAA sportsmen aged 16 years and over. Nine hundred and sixty (960) players completed questionnaires (72% response rate). Mean age was 24.0 years (S.D. 5.2). Of those aged 18 years or over, 75% had post-primary education; most (864, 90%) were current drinkers and 8.2% were regular smokers. The self-reported average yearly alcohol consumption was 12.5 litres. Almost one third (31%) of current drinkers reported drinking over the recommended limit of 21 standard drinks per week and just over half (54.3 %) reported drinking 6 or more standard drinks in a row at least once a week (regular binge drinking). Of those who (self) completed the Alcohol Use Disorder Identification Test (AUDIT) questionnaire, three-quarters (74.7%) had a score of 8 or more; 11.5% had a score of 20 or above warranting referral for diagnostic evaluation and treatment. Almost all (87.6%) of the 864 drinkers reported experiencing at least one harm due to their drinking. These alcohol misuse outcomes were higher than those found in a nationally representative sample of males of a similar age. There were strong associations between regular binge drinking and reporting harms such as being in a fight (adjusted odds ratio (OR) 2.02, p<0.001), missing time from work or college (adjusted OR 1.39, p=0.04) or being in an accident (adjusted OR 1.78, p=0.04). CONCLUSIONS: These male amateur

  5. SPORTS WATCHING CULTURE AMONG MALAYSIANS

    OpenAIRE

    Gunathevan Elumalai; Mohd Salleh Aman; Cassendra Gilbert; Muhammad Mat Yusof; Ahmad Tajuddin Othman; Lim Khong Chiu; Mohd Sofian Omar Fauzee; Hamdan Mohd Ali

    2015-01-01

    Background: Ardent sports watching will lead an individual to engage in sports and recreational activities continuously, while it also creates a sports culture among Malaysians. Sports watching culture is actually an intellectual activity. It is capable of evaluating behaviour, moral values and the level of appreciation of every spectator. Methods: This survey was conducted to identify the sports viewing culture among Malaysians. A cluster sampling method was used to select 6000 respondent...

  6. Proposing a tornado watch scale

    Science.gov (United States)

    Mason, Jonathan Brock

    This thesis provides an overview of language used in tornado safety recommendations from various sources, along with developing a rubric for scaled tornado safety recommendations, and subsequent development and testing of a tornado watch scale. The rubric is used to evaluate tornado refuge/shelter adequacy responses of Tuscaloosa residents gathered following the April 27, 2011 Tuscaloosa, Alabama EF4 tornado. There was a significant difference in the counts of refuge adequacy for Tuscaloosa residents when holding the locations during the April 27th tornado constant and comparing adequacy ratings for weak (EF0-EF1), strong (EF2-EF3) and violent (EF4-EF5) tornadoes. There was also a significant difference when comparing future tornado refuge plans of those same participants to the adequacy ratings for weak, strong and violent tornadoes. The tornado refuge rubric is then revised into a six-class, hierarchical Tornado Watch Scale (TWS) from Level 0 to Level 5 based on the likelihood of high-impact or low-impact severe weather events containing weak, strong or violent tornadoes. These levels represent maximum expected tornado intensity and include tornado safety recommendations from the tornado refuge rubric. Audio recordings similar to those used in current National Oceanic and Atmospheric Administration (NOAA) weather radio communications were developed to correspond to three levels of the TWS, a current Storm Prediction Center (SPC) tornado watch and a particularly dangerous situation (PDS) tornado watch. These were then used in interviews of Alabama residents to determine how changes to the information contained in the watch statements would affect each participant's tornado safety actions and perception of event danger. Results from interview participants (n=38) indicate a strong preference (97.37%) for the TWS when compared to current tornado watch and PDS tornado watch statements. Results also show the TWS elicits more adequate safety decisions from participants

  7. Near-infrared polarization and color of Comet Halley: What can we learn about the grains

    International Nuclear Information System (INIS)

    Brooke, T.Y.; Knacke, R.F.

    1988-01-01

    The near infrared polarization and JHK colors of light scattered by dust grains in comet Halley were measured over a wide range in phase angle and heliocentric distance. Colors were redder than solar with no statistically significant variation with phase angle, heliocentric distance, or pre- and post-perihelion. This suggests that the grain population did not change drastically over time and that the data may be combined and modeled. However, short term variations in visible polarization and dust albedo were seen in Halley. Also, near infrared colors became systematically bluer after the observations were completed. The near infrared colors of Halley fall in the range of those of other comets. The near infrared polarization is similar to the visible polarization of Halley and other comets in showing a negative branch at small phase angles and an approximately linear rise toward positive values at larger phase angles. Mie theory calculations and a size distribution based on spacecraft data were used to model the near infrared polarization and color of comet Halley. Numerous lines of evidence point to the presence of dark, absorbing, probably carbonaceous materials in comets

  8. Amateur observations of exoplanets in Finland: History and recent activities

    Science.gov (United States)

    Mäkelä, V.; Haukka, H.; Oksanen, A.; Kehusmaa, P.; Hentunen, V.-P.

    2017-09-01

    Exoplanet have been observed by Finnish amateur astronomers already 17 years. Recently there are two active observers, but the interest to photometric observations on exoplanet transits is increasing in Finland.

  9. Creativity In Amateur Multimedia: Popular Culture, Critical Theory, And Hci

    Directory of Open Access Journals (Sweden)

    Jeffrey Bardzell

    2007-01-01

    Full Text Available The last decade has witnessed the emergence and aesthetic maturation of amateur multimedia on an unprecedented scale, from video podcasts to machinima, and Flash animations to user-created metaverses. Today, especially in academic circles, this pop culture phenomenon is little recognized and even less understood. This paper explores creativity in amateur multimedia using three theorizations of creativity—those of HCI, postructuralism, and technological determinism. These theorizations frame a semiotic analysis of numerous commonly used multimedia authoring platforms, which demonstrates a deep convergence of multimedia authoring tool strategies that collectively project a conceptualization and practice of digital creativity. This conceptualization of digital creativity in authoring tools is then compared with hundreds of amateur-created artifacts. These analyses reveal relationships among emerging amateur multimedia aesthetics, common software authoring tools, and the three theorizations of creativity discussed.

  10. Teach yourself visually Apple Watch

    CERN Document Server

    Hart-Davis, Guy

    2015-01-01

    Master your new smartwatch quickly and easily with this highly visual guide Teach Yourself VISUALLY Apple Watch is a practical, accessible guide to mastering the powerful features and functionality of your new smartwatch. For Apple devotees and new users alike, this easy-to-follow guide features visually rich tutorials and step-by-step instructions that show you how to take advantage of all of the Apple watch's capabilities. You'll learn how to track your health, control household devices, download and install apps, sync your music, sync other Apple devices, and efficiently use the current O

  11. Watching Dallas again 3 : Reassessing Ien Ang's Watching Dallas

    NARCIS (Netherlands)

    Heesakkers, Toon; van Hoof, Ward; Jager, Anne; Gilroy, Amanda

    2014-01-01

    This audience reception project performs an audience study of the first season of the new Dallas (2012–14). It draws on Ien Ang's Watching Dallas ([1982] 1985) to analyze the production of irony and nostalgia. We observe that the blend of ironic viewing and nostalgia results in a more ironic,

  12. Amateur boxing: physical and physiological attributes.

    Science.gov (United States)

    Chaabène, Helmi; Tabben, Montassar; Mkaouer, Bessem; Franchini, Emerson; Negra, Yassine; Hammami, Mehrez; Amara, Samiha; Chaabène, Raja Bouguezzi; Hachana, Younés

    2015-03-01

    Boxing is one of the oldest combat sports. The aim of the current review is to critically analyze the amateur boxer's physical and physiological characteristics and to provide practical recommendations for training as well as new areas of scientific research. High-level male and female boxers show a propensity for low body fat levels. Although studies on boxer somatotypes are limited, the available information shows that elite-level male boxers are characterized by a higher proportion of mesomorphy with a well-developed muscle mass and a low body fat level. To help support the overall metabolic demands of a boxing match and to accelerate the recovery process between rounds, athletes of both sexes require a high level of cardiorespiratory fitness. International boxers show a high peak and mean anaerobic power output. Muscle strength in both the upper and lower limbs is paramount for a fighter's victory and is one of the keys to success in boxing. As boxing punches are brief actions and very dynamic, high-level boxing performance requires well-developed muscle power in both the upper and lower limbs. Albeit limited, the available studies reveal that isometric strength is linked to high-level boxing performance. Future investigations into the physical and physiological attributes of boxers are required to enrich the current data set and to help create a suitable training program.

  13. Exploration Medical Capability - Technology Watch

    Science.gov (United States)

    Krihak, Michael; Watkins, Sharmila; Barr, Yael; Barsten, Kristina; Fung, Paul; Baumann, David

    2011-01-01

    The objectives of the Technology Watch process are to identify emerging, high-impact technologies that augment current ExMC development efforts, and to work with academia, industry, and other government agencies to accelerate the development of medical care and research capabilities for the mitigation of potential health issues that could occur during space exploration missions. The establishment of collaborations with these entities is beneficial to technology development, assessment and/or insertion. Such collaborations also further NASA s goal to provide a safe and healthy environment for human exploration. The Tech Watch project addresses requirements and capabilities identified by knowledge and technology gaps that are derived from a discrete set of medical conditions that are most likely to occur on exploration missions. These gaps are addressed through technology readiness level assessments, market surveys, collaborations and distributed innovation opportunities. Ultimately, these gaps need to be closed with respect to exploration missions, and may be achieved through technology development projects. Information management is a key aspect to this process where Tech Watch related meetings, research articles, collaborations and partnerships are tracked by the HRP s Exploration Medical Capabilities (ExMC) Element. In 2011, ExMC will be introducing the Tech Watch external website and evidence wiki that will provide access to ExMC technology and knowledge gaps, technology needs and requirements documents.

  14. Microbiology as if Bird Watching

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 1; Issue 10. Microbiology as if Bird Watching. Milind G Watve. Classroom Volume 1 Issue 10 October 1996 pp 78-81. Fulltext. Click here to view fulltext PDF. Permanent link: https://www.ias.ac.in/article/fulltext/reso/001/10/0078-0081. Author Affiliations.

  15. Quality of Life in Professional, Semiprofessional, and Amateur Athletes

    Directory of Open Access Journals (Sweden)

    Ana Lúcia Padrão dos Santos

    2013-07-01

    Full Text Available The purpose of this study is to investigate the Ferrans and Powers Quality of Life Index (QLI and its domains in Brazilian athletes. The sample comprised 219 athletes from six sports, and included 127 men and 92 women, with mean age of 23.1 years (±5.2. All participants were associated with a sports organization and participated in official competitions at the professional, semiprofessional, and amateur levels, and completed a self-report demographics survey and the QLI during one testing session. Kruskal–Wallis and Mann–Whitney U tests were utilized to compare differences between competitive levels and gender, respectively. Significant differences were reported between professional and amateur athletes for the socioeconomic (p = .016; professional: 17.2, amateur: 15.1 and psychological/spiritual (p = .011; professional: 24.3, amateur: 21.9 domains and between genders on the family domain (p = .027; male: 21.8, female: 20.2. These findings suggest that professional athletes are more satisfied from a socioeconomic and psychological/spiritual perspective when compared with the amateur group. In addition, the results suggest that family issues are more satisfying and/or have less importance for males than for females. This study provides further insights into the quality of life of athletes and suggests differences based on competition levels and gender. Future studies are needed to further our understanding of the quality of life in athletes.

  16. Amateur filmmaking in the history of Brazilian cinema

    Directory of Open Access Journals (Sweden)

    Lila Silva Foster

    2016-07-01

    Full Text Available As in many national cinemas, the history of Brazilian amateur film is still in its early stages of investigation. In addition to this historiographical deficit, there are many ways in which amateur cinema is a small and less visible production: films shot in 16mm, 9.5mm and Super 8 are dispensable and Brazilian film archives and cinemateques only started cataloguing these materials in recent years. In the following paper we wish to establish a set of theoretic and historical guidelines to analyse amateur films that express different forms of amateur production. Through the collection of home movies from Alves de Lima family deposited at Cinemateca Brasileira (São Paulo, the amateur fictional films from Cinemateca Capitólio (Porto Alegre and Raymond Chauvin's  experimental films belonging to Hipólito José da Costa Communications Museum (Porto Alegre we want to give visibility to films that are not yet part of Brazilian cinema history.

  17. The new front in the war on doping: Amateur athletes.

    Science.gov (United States)

    Henning, April D; Dimeo, Paul

    2018-01-01

    The war on drugs is usually associated with criminal policies aimed at stemming consumption of drugs such as heroin, cocaine, and cannabis, less so with enhancement drugs like those used in sport. As drug use in sport, or doping, has become more visibly widespread, policies aimed at combating the issue have become more restrictive, intrusive, and harsh. In this article we draw new comparisons between the wider war on drugs and recent developments in sports anti-doping. We identify a growing trend towards criminalisation of traffickers and users, and associate that with another growing trend: the testing of amateur athletes. This article reviews the current anti-doping system, including the recent amateur policies, then considers of the results of one such program in amateur cycling. We then shift to consider the possible implications for amateurs of criminal doping laws and the recent debates about allowing medical exemptions for therapeutic use of banned substances. We show that drug use in sport can be understood as a new front in the war on drugs, with some extreme measures and many negative unintended consequences. To remedy this, we argue that amateur athletes require a separate anti-doping policy focused on minimising harms of use. Copyright © 2017 Elsevier B.V. All rights reserved.

  18. The development of a reliable amateur boxing performance analysis template.

    Science.gov (United States)

    Thomson, Edward; Lamb, Kevin; Nicholas, Ceri

    2013-01-01

    The aim of this study was to devise a valid performance analysis system for the assessment of the movement characteristics associated with competitive amateur boxing and assess its reliability using analysts of varying experience of the sport and performance analysis. Key performance indicators to characterise the demands of an amateur contest (offensive, defensive and feinting) were developed and notated using a computerised notational analysis system. Data were subjected to intra- and inter-observer reliability assessment using median sign tests and calculating the proportion of agreement within predetermined limits of error. For all performance indicators, intra-observer reliability revealed non-significant differences between observations (P > 0.05) and high agreement was established (80-100%) regardless of whether exact or the reference value of ±1 was applied. Inter-observer reliability was less impressive for both analysts (amateur boxer and experienced analyst), with the proportion of agreement ranging from 33-100%. Nonetheless, there was no systematic bias between observations for any indicator (P > 0.05), and the proportion of agreement within the reference range (±1) was 100%. A reliable performance analysis template has been developed for the assessment of amateur boxing performance and is available for use by researchers, coaches and athletes to classify and quantify the movement characteristics of amateur boxing.

  19. 47 CFR 80.301 - Watch requirements.

    Science.gov (United States)

    2010-10-01

    ... Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES STATIONS IN THE MARITIME SERVICES Safety Watch Requirements and Procedures Coast Station Safety Watches § 80.301 Watch...) Except for distress, urgency or safety messages, coast stations must not transmit on 2182 kHz during the...

  20. Study of WATCH GRB error boxes

    DEFF Research Database (Denmark)

    Gorosabel, J.; Castro-Tirado, A. J.; Lund, Niels

    1995-01-01

    We have studied the first WATCH GRB Catalogue ofγ-ray Bursts in order to find correlations between WATCH GRB error boxes and a great variety of celestial objects present in 33 different catalogues. No particular class of objects has been found to be significantly correlated with the WATCH GRBs....

  1. ExMC Technology Watch

    Science.gov (United States)

    Krihak, M.; Barr, Y.; Watkins, S.; Fung, P.; McGrath, T.; Baumann, D.

    2012-01-01

    The Technology Watch (Tech Watch) project is a NASA endeavor conducted under the Human Research Program's (HRP) Exploration Medical Capability (ExMC) element, and focusing on ExMC technology gaps. The project involves several NASA centers, including the Johnson Space Center (JSC), Glenn Research Center (GRC), Ames Research Center (ARC), and the Langley Research Center (LaRC). The objective of Tech Watch is to identify emerging, high-impact technologies that augment current NASA HRP technology development efforts. Identifying such technologies accelerates the development of medical care and research capabilities for the mitigation of potential health issues encountered during human space exploration missions. The aim of this process is to leverage technologies developed by academia, industry and other government agencies and to identify the effective utilization of NASA resources to maximize the HRP return on investment. The establishment of collaborations with these entities is beneficial to technology development, assessment and/or insertion and further NASA's goal to provide a safe and healthy environment for human exploration. In 2011, the major focus areas for Tech Watch included information dissemination, education outreach and public accessibility to technology gaps and gap reports. The dissemination of information was accomplished through site visits to research laboratories and/or companies, and participation at select conferences where Tech Watch objectives and technology gaps were presented. Presentation of such material provided researchers with insights on NASA ExMC needs for space exploration and an opportunity to discuss potential areas of common interest. The second focus area, education outreach, was accomplished via two mechanisms. First, several senior student projects, each related to an ExMC technology gap, were sponsored by the various NASA centers. These projects presented ExMC related technology problems firsthand to collegiate laboratories

  2. Charge exchange of solar wind ions in the Comet Halley coma

    Science.gov (United States)

    Shelley, E. G.; Ing-H. afgoldstein, B. E. AGGOLDSTEIN, R.; Ing-H. afgoldstein, B. E. AGGOLDSTEIN, R.

    1986-01-01

    The He(2+) and He(+) radial profiles measured by the Giotto mass spectrometer on the inbound trajectory to comet Halley are compared to a simple 1-dimensional charge exchange model. Results indicate that charge exchange alone cannot account for the observed radial profiles of He(2+) and He(+).

  3. NASA Infrared Telescope Facility Comet Halley monitoring program 2: Post-perihelion results

    International Nuclear Information System (INIS)

    Tokunaga, A.T.; Golisch, W.F.; Griep, D.M.; Kaminski, C.D.; Hanner, M.S.

    1988-01-01

    The post perihelion results of a 1 to 20 micrometer infrared monitoring program of Comet Halley are presented. These results complement previous observations of the pre-perihelion passages of Halley. The observations cover the time period of Mar. 1986 to the present time. During the time the comet was observable, two or more observations were obtained per month. The most interesting results were: (1) a detectable change in the J-H and H-K colors of Halley, and (2) a search for a nucleus rotation at J during 20 Feb. to 10 Mar. was unsuccessful. The perihelion J-H and K-K colors were constant at 0.48 + or - 0.01 and 0.17, respectively. A preliminary reduction of the data is given. It is concluded that the colors were at first similar to pre-perihelion and then changed from July onward to be bluer and more similar to the solar colors. This suggests that a change may have occurred in the composition of the dust coma of Halley in July 1986

  4. La teoria di Halley sul magnetismo terrestre e sulle aurore polari.

    Science.gov (United States)

    D'Amico, S.

    1999-10-01

    This paper contains a brief description of some theories developed by Edmund Halley during the last years of the 17th century and the beginning of the 18th. This theories tried to explain the origin of terrestrial magnetism and its changes during the time, and gives a description of how magnetic force by the Earth could influence polar aurorae.

  5. Spectroscopy for amateur astronomers recording, processing, analysis and interpretation

    CERN Document Server

    Trypsteen , Marc F M

    2017-01-01

    This accessible guide presents the astrophysical concepts behind astronomical spectroscopy, covering both the theory and the practical elements of recording, processing, analysing and interpreting your spectra. It covers astronomical objects, such as stars, planets, nebulae, novae, supernovae, and events such as eclipses and comet passages. Suitable for anyone with only a little background knowledge and access to amateur-level equipment, the guide's many illustrations, sketches and figures will help you understand and practise this scientifically important and growing field of amateur astronomy, up to the level of Pro-Am collaborations. Accessible to non-academics, it benefits many groups from novices and learners in astronomy clubs, to advanced students and teachers of astrophysics. This volume is the perfect companion to the Spectral Atlas for Amateur Astronomers, which provides detailed commented spectral profiles of more than 100 astronomical objects.

  6. Healthcare Applications of Smart Watches

    Science.gov (United States)

    Lu, Tsung-Chien; Fu, Chia-Ming; Ma, Matthew Huei-Ming; Fang, Cheng-Chung

    2016-01-01

    Summary Objective The aim of this systematic review is to synthesize research studies involving the use of smart watch devices for healthcare. Materials and Methods The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) was chosen as the systematic review methodology. We searched PubMed, CINAHL Plus, EMBASE, ACM, and IEEE Xplore. In order to include ongoing clinical trials, we also searched ClinicalTrials.gov. Two investigators evaluated the retrieved articles for inclusion. Discrepancies between investigators regarding article inclusion and extracted data were resolved through team discussion. Results 356 articles were screened and 24 were selected for review. The most common publication venue was in conference proceedings (13, 54%). The majority of studies were published or presented in 2015 (19, 79%). We identified two registered clinical trials underway. A large proportion of the identified studies focused on applications involving health monitoring for the elderly (6, 25%). Five studies focused on patients with Parkinson’s disease and one on cardiac arrest. There were no studies which reported use of usability testing before implementation. Discussion Most of the reviewed studies focused on the chronically ill elderly. There was a lack of detailed description of user-centered design or usability testing before implementation. Based on our review, the most commonly used platform in healthcare research was that of the Android Wear. The clinical application of smart watches as assistive devices deserves further attention. Conclusion Smart watches are unobtrusive and easy to wear. While smart watch technology supplied with biosensors has potential to be useful in a variety of healthcare applications, rigorous research with their use in clinical settings is needed. PMID:27623763

  7. Scientific Discovery through Citizen Science via Popular Amateur Astrophotography

    Science.gov (United States)

    Nemiroff, Robert J.; Bonnell, Jerry T.; Allen, Alice

    2015-01-01

    Can popular astrophotography stimulate real astronomical discovery? Perhaps surprisingly, in some cases, the answer is yes. Several examples are given using the Astronomy Picture of the Day (APOD) site as an example venue. One reason is angular -- popular wide and deep images sometimes complement professional images which typically span a more narrow field. Another reason is temporal -- an amateur is at the right place and time to take a unique and illuminating image. Additionally, popular venues can be informational -- alerting professionals to cutting-edge amateur astrophotography about which they might not have known previously. Methods of further encouraging this unusual brand of citizen science are considered.

  8. Leslie Peltier, Amateur Astronomer and Observer Extraordinaire

    Science.gov (United States)

    Corbin, B. G.

    2003-12-01

    Leslie Copus Peltier, (Jan. 2, 1900-May 10, 1980) was called "the world's greatest non-professional astronomer" by none other than Harlow Shapley, and also referred to as the "the world's greatest living amateur astronomer". He began observing variable stars on March 1, 1918 with an observation of R. Leonis and at the time of his death had made a total of 132,123 observations of variable stars. These were reported to the AAVSO on a consecutive monthly basis stretching from 1918 to his death in 1980. As of October 2003, he was still on AAVSO's list of the top 25 observers in its history. Born on a farm near Delphos, Ohio, his parents were well read and their home was filled with books on different subjects, including nature guides. As a young man he studied the flora and fauna of the area and in 1915 began his study of the heavens with Vega being the first star he identified. After the purchase of a 2-inch spyglass, his observations of variable stars began to be noticed by professional astronomers and the AAVSO loaned him a 4-inch Mogey refractor; shortly thereafter Henry Norris Russell of Princeton loaned him via the AAVSO a 6-inch refractor, a comet seeker of short focus. He discovered 12 comets, 10 of which carry his name, and 6 novae or recurring novae. His design of the "Merry-Go-Round Observatory" was a novel approach with the whole observatory revolving around the observer while seated in his observing chair. Miami University (Ohio) later donated to him their 12-inch Clark refractor with its dome. His first book, Starlight Nights: The Adventures of a Star-Gazer, appeared in 1965. This autobiography, an ode to the joys of observing both the night sky and nature, was written in beautifully descriptive language that helped lead countless readers into astronomy. Departing from astronomy, in 1977 he published The Place on Jennings Creek. Written in the style of the 19th century naturalist, the book was devoted to his family's home, Brookhaven, and its natural

  9. The Japanese Amateur Textual Production Scene: Activities and Participation

    Directory of Open Access Journals (Sweden)

    Alvaro David Hernández Hernández

    2016-12-01

    Full Text Available Animation, manga (Japanese comic books, and video games are some of the most popular media in Japan. The huge community of fans and amateur creators that concentrate twice a year at the massive event called Comic Market is one expression of this popularity. In this paper I focus on the Japanese culture of amateur manga, anime or other derivative texts, and present analysis of the way in which members relate to media texts and other members, in order to reveal two different orientations towards action within this culture: one that centers on individual activities, and the other on collective participation. To do this, I focus first on the Japanese amateur culture that is often called dōjin culture to find two basic perspectives. One regards this culture as forming communities or based on social interaction, and the other denies commonality in the relationships between members and stresses individual drive. Then, I focus on a similar distinction that shapes the main discourses concerning Japanese subculture and otaku, both categories within which dōjin culture can be categorized. Here I pay particular attention to two different orientations towards the value of media texts, which provide a reference for understanding the aforementioned opposition between commonality and individuality. In my conclusions, I suggest that this amateur culture can be regarded as an institution of textual appropriation, shaped by two orientations: activities and participation. 

  10. Factors Contributing to Lifelong Science Learning: Amateur Astronomers and Birders

    Science.gov (United States)

    Jones, M. Gail; Corin, Elysa Nicole; Andre, Thomas; Childers, Gina M.; Stevens, Vanessa

    2017-01-01

    This research examined lifelong science learning reported by amateur astronomers and birders. One hundred seven adults who reported engaging in an informal (out-of-school) science interest were interviewed as part of an ongoing series of studies of lifelong science learners. The goal of the study was to gain insight into how and why amateur…

  11. Sir Alfred Bray Kempe – An Amateur Kinematician

    Indian Academy of Sciences (India)

    sriranga

    vited talk delivered in 'The Work- shop on ... He was a true amateur academic, whom E T Bell1 called the ... of Snell's law for refraction of light ultimately proved to be correct. Though he was ... respected literary magazine of that era in Bengal.

  12. Effectiveness of Amateur Astronomers as Informal Science Educators

    Science.gov (United States)

    Gibbs, Michael G.; Berendsen, Margaret

    2007-01-01

    The Astronomical Society of the Pacific (ASP) conducted a national survey of in-service teachers participating in Project ASTRO. The survey results document (1) the value that teachers place on supplemental astronomy education provided by professional and amateur astronomers, and (2) the difference that teachers perceive in the value provided by…

  13. Amateur Astronomy in the U.S.: A Survey.

    Science.gov (United States)

    Fraknoi, Andrew

    1980-01-01

    Lists and describes a variety of major national astronomy organizations which amateurs can join. It also lists stores and institutions across the U.S. that offer a discount to members of the Astronomical Society of the Pacific (ASP). (Author/SA)

  14. Older Amateur Keyboard Players Learning for Self-Fulfilment

    Science.gov (United States)

    Taylor, Angela

    2011-01-01

    This article investigates self-reported music learning experiences of 21 older amateur pianists and electronic keyboard players. Significant changes in their lives and the encouragement of friends were catalysts for returning to or taking up a keyboard instrument as an adult, although not all returners had positive memories of learning a keyboard…

  15. Non-traumatic injury profile of amateur cyclists

    African Journals Online (AJOL)

    in respondents who experienced neck, back, hand/wrist, buttock/perineum and foot/ankle problems. Conclusion. Non-traumatic injuries in amateur cyclists are common, with back, hand/wrist and buttock/perineal symptoms the most frequent problems. Knee problems caused the greatest need to stop training and seek ...

  16. Comparative study of the dust emission of 19P/Borrelly (Deep Space 1) and 1P/Halley

    Science.gov (United States)

    Ho, T.-M.; Thomas, N.; Boice, D.C.; Kollein, C.; Soderblom, L.A.

    2003-01-01

    Images obtained by the Miniature Integrated Camera and Imaging Spectrometer (MICAS) experiment onboard the Deep Space 1 spacecraft which encountered comet 19P/Borrelly on September 22nd 2001 show a dust coma dominated by jets. In particular a major collimated dust jet on the sunward side of the nucleus was observed. Our approach to analyse these features is to integrate the observed intensity in concentric envelopes around the nucleus. The same procedures has been used on the Halley Multicolour Camera images of comet 1P/Halley acquired on March 14th 1986. We are able to show that at Borrelly the dust brightness dependence as a function of radial distance is different to that of Halley. At large distances both comets show constant values as the size of the concentric envelopes increases (as one would expect for force free radial outflow). For Halley the integral decreases as one gets closer to the nucleus. Borrelly shows opposite behaviour. The main cause for Halley's intensity distribution is either high optical thickness or particle fragmentation. For Borrelly, we have constructed a simple model of the brightness distribution near the nucleus. This indicates that the influence of deviations from point source geometry is insufficient to explain the observed steepening of the intensity profile close to the nucleus. Dust acceleration or fragmentation into submicron particles appear to be required. We also estimate the dust production rate of Borrelly with respect to Halley and compare their dust to gas ratios. ?? 2003 COSPAR. Published by Elsevier Ltd. All rights reserved.

  17. Incorporation of tritium from wrist watches

    International Nuclear Information System (INIS)

    Schoenhofer, F.; Pock, K.

    1995-01-01

    Watches are consumer products and are subject to the regulations that control food and consumer products. Elevated concentrations of tritium were found in the urine of persons who wore wrist watches with luminous dials and plastic cases. High emission of tritium from these watches were observed. In an experiment, a volunteer wore a watch with high emissions and the build-up of the tritium concentration in urine was monitored, as well as the decline after removing the watch. Possible pathways for the incorporation and its mechanism are considered. In spite of the relatively high activity concentrations observed, the dose is negligible. On the other hand, the principle 'ALARA' can be achieved without any costs by simply choosing other types of watches. (author). 12 refs., 2 figs., 2 tabs

  18. Model for the coma of Comet Halley, based on the Astron ultraviolet spectrophotometry

    International Nuclear Information System (INIS)

    Boiarchuk, A.A.; Grinin, V.P.; Petrov, P.P.; Sheikhet, A.I.; Zvereva, A.M.

    1986-01-01

    The development of a model of the Comet Halley coma from spectral and photometric data is described. Spectra in the 1500-3500 A range and photometric scans at the 3085 A and 2190 A in the (0-0) band of the OH and CO(+) molecules were obtained by the UV telescope of the satellite Astron on December 3, 13, and 23, 1985. Surface-brightness profiles of the coma in the (0-0) band of OH, NH, and CS molecules are derived. The source and formation of these molecules, the lifetime of their radicals, the radial velocity of their parent molecules, and the water-molecule sublimation rate are computed and examined. The basic characteristics of the comet observed from the UV data are compared to the properties of other comets. It is observed that Comet Halley is similar to other large short-period comets. 29 references

  19. Organic Chemistry in Interstellar Ices: Connection to the Comet Halley Results

    Science.gov (United States)

    Schutte, W. A.; Agarwal, V. K.; deGroot, M. S.; Greenberg, J. M.; McCain, P.; Ferris, J. P.; Briggs, R.

    1997-01-01

    Mass spectroscopic measurements on the gas and dust in the coma of Comet Halley revealed the presence of considerable amounts of organic species. Greenberg (1973) proposed that prior to the formation of the comet UV processing of the ice mantles on grains in dense clouds could lead to the formation of complex organic molecules. Theoretical predictions of the internal UV field in dense clouds as well as the discovery in interstellar ices of species like OCS and OCN- which have been formed in simulation experiments by photoprocessing of interstellar ice analogues point to the importance of such processing. We undertook a laboratory simulation study of the formation of organic molecules in interstellar ices and their possible relevance to the Comet Halley results.

  20. Comparison of Wave Energy Transport at the Comets p/Halley and p/Giacobini-Zinner

    Science.gov (United States)

    Sding, A.; Glassmeir, K. H.; Fuselier, S. A.; Neubauer, Fritz M.; Tsurutani, B. T.

    1995-01-01

    Using magnetic field, plasma density and flow observations from spacecraft flybys of two comets, Eler variables are determined in order to study wave propogation directions. We investigate the inbound path of the Giotto spacecraft flyby of comet p/Halley outside the bow shock, and the inbound and outbound path of the ICE spacecraft flyby of comet p/Giacobini-Zinner outsinde of the bow wave.

  1. 3D CSEM data inversion using Newton and Halley class methods

    Science.gov (United States)

    Amaya, M.; Hansen, K. R.; Morten, J. P.

    2016-05-01

    For the first time in 3D controlled source electromagnetic data inversion, we explore the use of the Newton and the Halley optimization methods, which may show their potential when the cost function has a complex topology. The inversion is formulated as a constrained nonlinear least-squares problem which is solved by iterative optimization. These methods require the derivatives up to second order of the residuals with respect to model parameters. We show how Green's functions determine the high-order derivatives, and develop a diagrammatical representation of the residual derivatives. The Green's functions are efficiently calculated on-the-fly, making use of a finite-difference frequency-domain forward modelling code based on a multi-frontal sparse direct solver. This allow us to build the second-order derivatives of the residuals keeping the memory cost in the same order as in a Gauss-Newton (GN) scheme. Model updates are computed with a trust-region based conjugate-gradient solver which does not require the computation of a stabilizer. We present inversion results for a synthetic survey and compare the GN, Newton, and super-Halley optimization schemes, and consider two different approaches to set the initial trust-region radius. Our analysis shows that the Newton and super-Halley schemes, using the same regularization configuration, add significant information to the inversion so that the convergence is reached by different paths. In our simple resistivity model examples, the convergence speed of the Newton and the super-Halley schemes are either similar or slightly superior with respect to the convergence speed of the GN scheme, close to the minimum of the cost function. Due to the current noise levels and other measurement inaccuracies in geophysical investigations, this advantageous behaviour is at present of low consequence, but may, with the further improvement of geophysical data acquisition, be an argument for more accurate higher-order methods like those

  2. The PACA Project: When Amateur Astronomers Become Citizen Scientists

    Science.gov (United States)

    Yanamandra-Fisher, P. A.

    2014-12-01

    The Pro-Am Collaborative Astronomy (PACA) project evolved from the observational campaign of C/2012 S1 or C/ISON in 2013. Following the success of the professional-amateur astronomer collaboration in scientific research via social media, it is now implemented in other comet observing campaigns. While PACA identifies a consistent collaborative approach to pro-am collaborations, given the volume of data generated for each campaign, new ways of rapid data analysis, mining access and storage are needed. Several interesting results emerged from the synergistic inclusion of both social media and amateur astronomers: (1) the establishment of a network of astronomers and related professionals, that can be galvanized into action on short notice to support observing campaigns; (2) assist in various science investigations pertinent to the campaign; (3) provide an alert-sounding mechanism should the need arise; (4) immediate outreach and dissemination of results via our media/blogger members; (5) provide a forum for discussions between the imagers and modelers to help strategize the observing campaign for maximum benefit. In 2014, two new comet observing campaigns involving pro-am collaborations have been initiated: (1) C/2013 A1 (C/SidingSpring) and (2) 67P/Churyumov-Gerasimenko (CG), target for ESA/Rosetta mission. The evolving need for individual customized observing campaigns has been incorporated into the evolution of PACA portal that currently is focused on comets: from supporting observing campaigns of current comets, legacy data, historical comets; interconnected with social media and a set of shareable documents addressing observational strategies; consistent standards for data; data access, use, and storage, to align with the needs of professional observers. The integration of science, observations by professional and amateur astronomers, and various social media provides a dynamic and evolving collaborative partnership between professional and amateur astronomers

  3. La comète de Halley une révolution scientifique

    CERN Document Server

    Maffei, Paolo

    1985-01-01

    Mars-avril 1986: la comète de Halley est de retour, passant au plus près de la Terre.Rarement un événement à l'origine strictement astronomique aura à ce point été un événement scientifique. Pas moins de cinq sondes spatiales, en effet, ont été lancées pour rencontrer la comète et effectuer en mars 1986 la première exploration de son atmosphère. Rien, pourtant, ne semblait à l'origine militer pour un tel déploiement de moyens scientifiques: la comète ne dépasse pas en éclat les comètes non périodiques les plus brillantes; sa période de révolution _ 76 ans _ est longue; sa trajectoire est telle que le temps d'observation, lors du survol par les sondes, ne dure que quelques heures.Mais la comète de Halley _ du nom de l'astronome anglais Edmund Halley qui, appliquant les lois de la gravitation de Newton, en détermina les éléments orbitaux et prévit la réapparition de 1758 _ est la seule comète brillante et jeune dont la trajectoire soit parfaitement connue à l'avance. Grâce à s...

  4. Turtle Watch: Community Engagement and Action

    Science.gov (United States)

    Lewis, Elaine; Baudains, Catherine

    2015-01-01

    Many threats face the freshwater turtle, Chelodina colliei, also known as the oblong turtle. A community education project, Turtle Watch, focused on this target species and enabled effective conservation action to be implemented. Turtle Watch was conducted in the Perth Metropolitan Area of Western Australia, as the oblong turtle inhabits the…

  5. 75 FR 49510 - Credit Watch Termination Initiative

    Science.gov (United States)

    2010-08-13

    ... DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT [Docket No. FR-5411-N-02] Credit Watch Termination Initiative AGENCY: Office of the Assistant Secretary for Housing--Federal Housing Commissioner, HUD. ACTION... FHA Credit Watch Termination Initiative. This notice includes a list of mortgagees which have had...

  6. 75 FR 17944 - Credit Watch Termination Initiative

    Science.gov (United States)

    2010-04-08

    ... DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT [Docket No. FR-5411-N-01] Credit Watch Termination Initiative AGENCY: Office of the Assistant Secretary for Housing--Federal Housing Commissioner, HUD. ACTION... FHA Credit Watch Termination Initiative. This notice includes a list of mortgagees which have had...

  7. Astrophysics is easy! an introduction for the amateur astronomer

    CERN Document Server

    Inglis, Mike

    2007-01-01

    With some justification, many amateur astronomers believe astrophysics is a very difficult subject, requiring at least degree-level mathematics to understand it properly. This isn’t necessarily the case. Mike Inglis' quantitative approach to the subject explains all aspects of astrophysics in simple terms and cuts through the incomprehensible mathematics with which this fascinating subject is all too often associated. Astrophysics is Easy! begins by looking at the H-R diagram and other basic tools of astrophysics, then ranges across the universe, from a first look at the interstellar medium and nebulae, through the birth, evolution and death of stars, to the physics of galaxies and clusters of galaxies. A unique feature of this book is the way that Dr. Inglis lists example objects for practical observation at every stage, so that practical astronomers can go and look at the object or objects under discussion – using only easily-available commercial amateur equipment.

  8. Journeying as Amateur and Professional – A Somatic Movement Approach

    Directory of Open Access Journals (Sweden)

    Martha Eddy

    2016-07-01

    Full Text Available This account is an interactive case study co-authored by a teacher and her student on the topic of moving from amateur to professional. It highlights the role of somatic education in equalizing the experience of amateurs and professionals as well as pointing to specific curricula, public performances, participatory events and volunteer work that are made uniquely available to students of programs related to Dynamic EmbodimentTM Somatic Movement Therapy (known as the Somatic Movement Therapy Training – SMTT from 1991-2005. Written in first-person narrative style (Powdermaker 1966, this inquiry supports the primary methodology of somatic education – the process of self-discovery “from within” (Hanna 1976 emphasizing the physical body with a focus on bodily proprioception and kinesthetic awareness – as well as the humanistic nature of the student-teacher relationship and the value of each in performance and education.

  9. Collective efficacy, cohesion and performance in spanish amateur female basketball

    Directory of Open Access Journals (Sweden)

    Raul Mart\\u00EDnez-Santos

    2013-01-01

    Full Text Available El objetivo de este estudio fue el de examinar las relaciones entre la eficacia colectiva, la cohesión y el rendimiento en el baloncesto español amateur femenino. Para ello, 68 jugadoras amateurs de ocho equipos diferentes completaron las versiones españolas del Collective Efficacy Questionnaire for Sport y del Group Environment Questionnaire for Sports al final de la temporada 2011/2012. Los resultados mostraron que la eficacia colectiva declarada por las jugadoras es un potente factor de explicación de rendimiento, a diferencia de la cohesión de grupo general. Sin embargo, y en consonancia con la primera conclusión, las jugadoras de los equipos exitosos declararon mayores niveles de atracción e integración con el grupo en relación a la tarea.

  10. Parody: Affective Registers, Amateur Aesthetics and Intellectual Property

    Directory of Open Access Journals (Sweden)

    Esther Milne

    2013-02-01

    Full Text Available If contemporary media platforms transform and conflate the relations between professional and amateur creative workers, what might we say about the specificity of their vernacular? This article argues that parody is a key site for the articulation of amateur labour enabled by new patterns of networked production and consumption. Despite its utopian promise of free speech, however, the parodic form is tempered by economic and legal exigencies. Therefore, the essay particularly investigates legislative and policy frameworks that constrain parody discourse. Amendments in 2006 to the Australian Copyright Act 1968 (Cth, for example, introduced parody and satire defences allowing greater scope for social critique. Yet recent US legislation preventing online impersonation (such as mock twitter accounts raises crucial questions about the public domain.

  11. Il Cabinet d'amateur di Georges Perec

    Directory of Open Access Journals (Sweden)

    Valeria Cammarata

    2011-06-01

    Full Text Available In 1979 one year after the publication of La vie mode d’emploi, George Perec wrote Cabinet d’amateur. Histoire d’un tableau, in which he tells the story of a painting belonging to the genre of the cabinet d’amateur, also known as kunst- und wunderkammer. It is a collection of different paintings, usually belonging to a rich man or a notable, portrayed (once again in a single picture celebrating the magnificence of this more or less real collection. As for the pictorial genre, so the short novel is the celebration of the images collected by George Perec in his previous masterpiece, La vie mode d’emploi. This is why I assume this work to be referable to the genre of structural homology more than to that of ékphrasis, being the pictorial structure not only the thematic inspiration or motif of the novel but its own underlying structure

  12. Concentration of Ca in blood of amateur runners using NAA

    Energy Technology Data Exchange (ETDEWEB)

    Kovacs, L.; Zamboni, C. B.; Metairon, S. [Instituto de Pesquisas Energeticas e Nucleares (IPEN / CNEN - SP) - Centro do Reator de Pesquisas Av. Professor Lineu Prestes, 2242 - 05508-000 Sao Paulo, SP (Brazil); Nunes, L. A. S.; Lourenco, T. F.; Macedo, D. V. [Universidade Estadual de Campinas - UNICAMP - Laboratorio de Bioquimica do Exercicio - LABEX Cidade Universitaria 13083-970 - Campinas, SP Brazil - Caixa-Postal: 6109 (Brazil)

    2013-05-06

    In this study the Ca levels were determined in amateur runners blood at LABEX (Laboratorio de Bioquimica do Exercicio - UNICAMP, Brazil), using Neutron Activation Analyses (NAA) technique. The range established at rest (162 - 410 mgL{sup -1}) when compared with control group (51 - 439 mgL{sup -1}) suggests that there is a dependency of these limits in the function of the adopted physical training.

  13. Personality differences in high risk sports amateurs and instructors.

    Science.gov (United States)

    Watson, Alison E; Pulford, Briony D

    2004-08-01

    This study investigated the personality differences of 21 amateurs and 20 instructors who participated in the high risk sports of skydiving, hang-gliding, paragliding, scuba diving, microlighting, and rock climbing, versus those who did not. 38 men and 28 women (M age=32.6 yr., SD= 10.0) were assessed using the Eysenck Personality Questionnaire-Revised, the General Health Questionnaire, the Generalised Self-efficacy Scale, and a Type A/B personality measure. Instructors and Amateurs scored significantly higher on Extroversion and lower on Neuroticism than Nonparticipants; however, they differed from each other on the General Health Questionnaire and Type A/B personality scores. Amateurs scored significantly higher on Psychoticism and Self-efficacy than Instructors and Nonparticipants. In conclusion, these test scores suggest that people who are attracted to high risk sports tend to be at the extroverted and emotionally stable end of the scale, with a tendency to exhibit Type A characteristics; however, Instructors' scores on Psychoticism and Self-efficacy are more akin to those of Nonparticipants.

  14. Factors influencing the intention to watch online video advertising.

    Science.gov (United States)

    Lee, Joonghwa; Lee, Mira

    2011-10-01

    This study examines the factors influencing consumer intention to watch online video ads, by applying the theory of reasoned action. The attitude toward watching online video ads, the subjective norm, and prior frequency of watching online video ads positively influence the intention to watch online video ads. Further, beliefs held about entertainment and information outcomes from watching online video ads and subjective norm influence attitude toward watching these ads.

  15. Physiological profile of senior and junior England international amateur boxers.

    Science.gov (United States)

    Smith, Marcus S

    2006-01-01

    Despite worldwide popularity of amateur boxing, research focussed on the physiological demands of the sport is limited. The physiological profile of Senior and Junior England international amateur boxers is presented. A gradual (8 to 21-days) and rapid (0 to 7-days) phase of body weight reduction was evident with 2.2 ± 0.3 % of the 7.0 ± 0. 8 % weight loss occurring over the final 24-hours. An increase in body weight >4% was observed following a recovery period. High urine osmolality values (> 1000 mOsm·kg(-1)) were recorded during training and competition. High post-competition blood lactate values (>13.5 mmol·l(-1)) highlighted the need for a well-developed anaerobic capacity and the importance of not entering the ring in a glycogen depleted state. The aerobic challenge of competition was demonstrated by maximum heart rate values being recorded during 'Open' sparring. Mean body fat values of 9-10% were similar to those reported for other weight classified athletes. Normal resting values were reported for hematocrit (Senior 48 ± 2 % and Junior 45 ± 2 %), haemoglobin (Senior 14.7 ± 1.0 g·dl(-1) and Junior 14.5 ± 0.8 g·dl(-1)), bilirubin (Senior 15.3 ± 6.2 µmol·l-1(-1)) and ferritin (Senior 63.3 ± 45.7 ng·ml(-1)). No symptoms associated with asthma or exercise-induced asthma was evident. A well- developed aerobic capacity was reflected in the Senior VO2max value of 63.8 ± 4.8 ml·kg(-1)·min(-1). Senior lead hand straight punching force (head 1722 ± 700 N and body 1682 ± 636 N) was lower than the straight rear hand (head 2643 ± 1273 N and body 2646 ± 1083 N), lead hook (head 2412 ± 813 N and body 2414 ± 718 N) and rear hook (head 2588 ± 1040 N and body 2555 ± 926 N). It was concluded that amateur boxing performance is dependent on the interplay between anaerobic and aerobic energy systems. Current weight making methods may lead to impaired substrate availability, leading to reduced competitive performance and an increased risk to a boxers

  16. Watching Faults Grow in Sand

    Science.gov (United States)

    Cooke, M. L.

    2015-12-01

    Accretionary sandbox experiments provide a rich environment for investigating the processes of fault development. These experiments engage students because 1) they enable direct observation of fault growth, which is impossible in the crust (type 1 physical model), 2) they are not only representational but can also be manipulated (type 2 physical model), 3) they can be used to test hypotheses (type 3 physical model) and 4) they resemble experiments performed by structural geology researchers around the world. The structural geology courses at UMass Amherst utilize a series of accretionary sandboxes experiments where students first watch a video of an experiment and then perform a group experiment. The experiments motivate discussions of what conditions they would change and what outcomes they would expect from these changes; hypothesis development. These discussions inevitably lead to calculations of the scaling relationships between model and crustal fault growth and provide insight into the crustal processes represented within the dry sand. Sketching of the experiments has been shown to be a very effective assessment method as the students reveal which features they are analyzing. Another approach used at UMass is to set up a forensic experiment. The experiment is set up with spatially varying basal friction before the meeting and students must figure out what the basal conditions are through the experiment. This experiment leads to discussions of equilibrium and force balance within the accretionary wedge. Displacement fields can be captured throughout the experiment using inexpensive digital image correlation techniques to foster quantitative analysis of the experiments.

  17. Antibodies to watch in 2014.

    Science.gov (United States)

    Reichert, Janice M

    2014-01-01

    Since 2010, mAbs has documented the biopharmaceutical industry's progress in transitioning antibody therapeutics to first Phase 3 clinical studies and regulatory review, and its success at gaining first marketing approvals for antibody-based products. This installment of the "Antibodies to watch" series outlines events anticipated to occur between December 2013 and the end of 2014, including first regulatory actions on marketing applications for vedolizumab, siltuximab, and ramucirumab, as well as the Fc fusion proteins Factor IX-Fc and Factor VIII-Fc; and the submission of first marketing applications for up to five therapeutics (secukinumab, ch14.18, onartuzumab, necitumumab, gevokizumab). Antibody therapeutics in Phase 3 studies are described, with an emphasis on those with study completion dates in 2014, including antibodies targeting interleukin-17a or the interleukin-17a receptor (secukinumab, ixekizumab, brodalumab), proprotein convertase subtilisin/kexin type 9 (alirocumab, evolocumab, bococizumab), and programmed death 1 receptor (lambrolizumab, nivolumab). Five antibodies with US Food and Drug Administration's Breakthrough Therapy designation (obinutuzumab, ofatumumab, lambrolizumab, bimagrumab, daratumumab) are also discussed.

  18. Development of Watch Schedule Using Rules Approach

    Science.gov (United States)

    Jurkevicius, Darius; Vasilecas, Olegas

    The software for schedule creation and optimization solves a difficult, important and practical problem. The proposed solution is an online employee portal where administrator users can create and manage watch schedules and employee requests. Each employee can login with his/her own account and see his/her assignments, manage requests, etc. Employees set as administrators can perform the employee scheduling online, manage requests, etc. This scheduling software allows users not only to see the initial and optimized watch schedule in a simple and understandable form, but also to create special rules and criteria and input their business. The system using rules automatically will generate watch schedule.

  19. Star Ware: The Amateur Astronomer's Guide to Choosing, Buying, and Using Telescopes and Accessories, 3rd Edition

    Science.gov (United States)

    Harrington, Philip S.

    2002-05-01

    Praise for the Second Edition of Star Ware "Star Ware is still a tour de force that any experienced amateur will find invaluable, and which hardware-minded beginners will thoroughly enjoy." -Robert Burnham, Sky & Telescope magazine "Star Ware condenses between two covers what would normally take a telescope buyer many months to accumulate." -John Shibley, Astronomy magazine Now more than ever, the backyard astronomer has a dazzling array of choices when it comes to telescope shopping-which can make choosing just the right sky-watching equipment a formidable challenge. In this revised and updated edition of Star Ware, the essential guide to buying astronomical equipment, award-winning astronomy writer Philip Harrington does the work for you, analyzing and exploring today's astronomy market and offering point-by-point comparisons of everything you need. Whether you're an experienced amateur astronomer or just getting started, Star Ware, Third Edition will prepare you to explore the farthest reaches of space with: Extensive, expanded reviews of leading models and accessories, including dozens of new products, to help you buy smart A clear, step-by-step guide to all aspects of purchasing everything from telescopes and binoculars to filters, mounts, lenses, cameras, film, star charts, guides and references, and much more Eleven new do-it-yourself projects for making unique astronomical equipment at home Easy tips on maintenance, photography, and star-mapping to help you get the most out of your telescope Lists of where to find everything astronomical, including Internet sites and Web resources; distributors, dealers, and conventions; and corporate listings for products and services

  20. National Status and Trends: Mussel Watch Program

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Mussel Watch is the longest running continuous chemical contaminant monitoring program in U.S. coastal and Great Lakes waters and was created in response to concerns...

  1. Great Lakes CoastWatch Node

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CoastWatch is a nationwide National Oceanic and Atmospheric Administration (NOAA) program within which the Great Lakes Environmental Research Laboratory (GLERL)...

  2. National Status and Trends: Mussel Watch Project

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Mussel Watch represents the longest running continuous contaminant monitoring program in U.S. coastal and Great Lakes waters and was created in response to concerns...

  3. CoastWatch Regions in HDF Format

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The mapped data derived from AVHRR is divided into files for CoastWatch regions of interest. Each file contains multiple data variables stored using the HDF-4...

  4. The Mechanics of Mechanical Watches and Clocks

    CERN Document Server

    Du, Ruxu

    2013-01-01

    "The Mechanics of Mechanical Watches and Clocks" presents historical views and mathematical models of mechanical watches and clocks. Although now over six hundred years old, mechanical watches and clocks are still popular luxury items that fascinate many people around the world. However few have examined the theory of how they work as presented in this book. The illustrations and computer animations are unique and have never been published before. It will be of significant interest to researchers in mechanical engineering, watchmakers and clockmakers, as well as people who have an engineering background and are interested in mechanical watches and clocks. It will also inspire people in other fields of science and technology, such as mechanical engineering and electronics engineering, to advance their designs. Professor Ruxu Du works at the Chinese University of Hong Kong, China. Assistant Professor Longhan Xie works at the South China University of Technology, China.

  5. Coral Reef Watch, Hotspots, 50 km

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NOAA Coral Reef Watch provides Coral Bleaching hotspot maps derived from NOAA's Polar Operational Environmental Satellites (POES). This data provides global area...

  6. Warfarin Side Effects: Watch for Interactions

    Science.gov (United States)

    Warfarin side effects: Watch for interactions Although commonly used to treat blood clots, warfarin (Coumadin, Jantoven) can have dangerous side effects or ... bleeding. Here are precautions to take to avoid warfarin side effects. By Mayo Clinic Staff If you' ...

  7. 2007 Hypoxia Watch Bottom CTD Station Locations

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The NOAA Hypoxia Watch project provides near-real-time, web-based maps of dissolved oxygen near the sea floor over the Texas-Louisiana continental shelf during a...

  8. 2004 Hypoxia Watch Bottom CTD Station Locations

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The NOAA Hypoxia Watch project provides near-real-time, web-based maps of dissolved oxygen near the sea floor over the Texas-Louisiana continental shelf during a...

  9. 2005 Hypoxia Watch Bottom CTD Station Locations

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The NOAA Hypoxia Watch project provides near-real-time, web-based maps of dissolved oxygen near the sea floor over the Texas-Louisiana continental shelf during a...

  10. 2002 Hypoxia Watch Bottom CTD Station Locations

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The NOAA Hypoxia Watch project provides near-real-time, web-based maps of dissolved oxygen near the sea floor over the Texas-Louisiana continental shelf during a...

  11. 2003 Hypoxia Watch Bottom CTD Station Locations

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The NOAA Hypoxia Watch project provides near-real-time, web-based maps of dissolved oxygen near the sea floor over the Texas-Louisiana continental shelf during a...

  12. 2001 Hypoxia Watch Bottom CTD Station Locations

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The NOAA Hypoxia Watch project provides near-real-time, web-based maps of dissolved oxygen near the sea floor over the Texas-Louisiana continental shelf during a...

  13. Antibodies to watch in 2018

    Science.gov (United States)

    Kaplon, Hélène; Reichert, Janice M.

    2018-01-01

    ABSTRACT The pace of antibody therapeutics development accelerated in 2017, and this faster pace is projected to continue through 2018. Notably, the annual number of antibody therapeutics granted a first approval in either the European Union (EU) or United States (US) reached double-digits (total of 10) for the first time in 2017. The 10 antibodies granted approvals are: brodalumab, dupilumab, sarilumab, guselkumab, benralizumab, ocrelizumab, inotuzumab ozogamicin, avelumab, duvalumab, and emicizumab. Brodalumab, however, had already been approved in Japan in 2016. As of December 1, 2017, nine antibody therapeutics (ibalizumab, burosumab, tildrakizumab, caplacizumab, erenumab, fremanezumab, galcanezumab, romosozumab, mogamulizumab) were in regulatory review in the EU or US, and regulatory actions on their marketing applications are expected by the end of 2018. Based on company announcements and estimated clinical study primary completion dates, and assuming the study results are positive, marketing applications for at least 12 antibody therapeutics that are now being evaluated in late-stage clinical studies may be submitted by the end of 2018. Of the 12 candidates, 8 are for non-cancer indications (lanadelumab, crizanlizumab, ravulizumab, eptinezumab, risankizumab, satralizumab, brolucizumab, PRO140) and 4 are for cancer (sacituzumab govitecan, moxetumomab pasudotox, cemiplimab, ublituximab). Additional antibody therapeutics to watch in 2018 include 19 mAbs undergoing evaluation in late-stage studies with primary completion dates in late 2017 or during 2018. Of these mAbs, 9 are for non-cancer indications (lampalizumab, roledumab, emapalumab, fasinumab, tanezumab, etrolizumab, NEOD001, gantenerumab, anifrolumab) and 10 are for cancer indications (tremelimumab, isatuximab, BCD-100, carotuximab, camrelizumab, IBI308, glembatumumab vedotin, mirvetuximab soravtansine, oportuzumab monatox, L19IL2/L19TNF). Positive clinical study results may enable marketing application

  14. Airborne spectrophotometry of P/Halley from 16 to 30 microns

    Science.gov (United States)

    Herter, T.; Gull, G. E.; Campins, H.

    1986-01-01

    Comet Halley was observed in the 16 to 30 micron region using the Cornell University 7-channel spectrometer (resolution = 0.02) on board the Kuiper Airborne Observatory on 1985 Dec. 14.2. A 30-arcsec aperture (FWHM) was used. Measurements centered on the nuclear condensation micron indicate that if present, the 20 micron silicate feature is very weak, and that a relatively narrow strong feature centered at 28.4 microns possibly exists. However, this feature may be an artifact of incomplete correction for telluric water vapor absorption.

  15. Measurement of plasma and energetic charged particles in the proximity of Halley's comet

    International Nuclear Information System (INIS)

    Erdoes, Geza; Gombosi, Tamas; Kecskemety, Karoly; Somogyi, Antal; Tatrallyay, Mariella; Varga, Andras

    1987-01-01

    The instrumentation aboard the space probe VEGA for the exploration of Halley's comet contained the particle analyzers PLAZMAG and TUENDE-M. PLAZMAG was used for the measurement of the interaction between the low-energy solar plasma and the heavy ions from the comet. From the energy spectra measured near the nucleus of the comet the density distribution of ion groups can also be determined. TUENDE-M recorded the distribution of energetic heavy ions from the comet. The properties of various plasma regions within the 10 million km range from the comet's nucleus are discussed in detail. (R.P.)

  16. Synthetic profile analysis of the observed (0,0) Swan band of Comet Halley

    International Nuclear Information System (INIS)

    Krishna swamy, K.S.

    1991-01-01

    The time-dependent rotational population distribution for the (0,0) band of the Swan system was carried out. These population distributions are used to calculate the synthetic spectra over the wavelength region 5165-5132 A for comparing with the excellent spectra of Lambert et al. (1990) for Comet Halley. The synthetic spectra for the rotational population distribution corresponding to a time interval of about 8000 sec gives a good fit to the observed spectra over the whole special region. This seems to indicate that the level population does not appear to have reached the steady state values. 16 refs

  17. First in situ plasma and neutral gas measurements at comet Halley: initial VEGA results

    International Nuclear Information System (INIS)

    Gringauz, K.I.; Remizov, A.P.; Gombosi, T.I.

    1986-04-01

    The first in situ observations and a description of the large scale behaviour of comet Halley's plasma environment are presented. The scientific objectives of the PLASMAG-1 experiment were as follows: to study the change of plasma parameters and distributions as a function of cometocentric distance; to investigate the existence and structure of the cometary bow shock; to determine the change in chemical composition of the heavily mass loaded plasma as the spacecraft approached the comet; and to measure the neutral gas distribution along the spacecraft trajectory. (author)

  18. Finding the Limits of Aid/Watch

    Directory of Open Access Journals (Sweden)

    Matthew Harding

    2011-11-01

    Full Text Available Commissioner of Taxation v Aid/Watch Incorporated is the latest of a series of recent cases in which the High Court of Australia has exhibited what might be described as a ‘generosity of spirit’ to would-be taxpayers whose charitable status has been called into question. In Aid/Watch, the Court ruled that an organisation formed to monitor and evaluate the delivery of foreign aid by Australian government agencies was a charity even though it was engaged, consistently with its objects, in the sorts of political activities that traditionally have been regarded as anathema to charity. This article considers where we might feasibly locate the boundaries of the High Court’s reasoning in Aid/Watch, in light of charity law as a whole. In other words, as a matter of charity law, what are the limits of Aid/Watch? Thinking about this question demands: (a some understanding of what the High Court in Aid/Watch said with certainty; and (b a wider review of charity law to see which of its rules and principles may bear upon cases about political purposes now that Aid/Watch has been decided.

  19. Alfred Lee Loomis - last great amateur of science

    International Nuclear Information System (INIS)

    Alvarex, L.W.

    1983-01-01

    Alfred Loomis may well be remembered as the last of the great amateurs of science. He had distinguished careers as a lawyer, as an Army officer and as an investment banker before he turned his full energies to the pursuit of scientific knowledge, first in the field of physics and later as a biologist. By any measure that can be employed, he was one of the most influential physical scientists of this century: he was elected to the National Academy when he was 53 years old; he received many honorary degrees from prestigious universities; and he played a crucial role as director of all NDRC-OSRD radar research in World War II

  20. General Vo Nguyen Giap: Operational Genius or Lucky Amateur

    Science.gov (United States)

    1993-05-17

    34蓞 fta "" Coat" Si0-650sa 0102-LF-014-66 02 ABSTRACT OF. GENERAL VO NGUYEN GIAP: OPERATIONAL GENIUS OR LUCKY AMATEUR? Over the course of 30 years, from...and the revolution in operation’al. (nkinZ he procipitated. 37 ENDNOTES 1. Stanley Karnow, Vietnam: A History (New York: Penguin Books, 1984), p. 58...isl. Now York: Penguin Books, 1984. O’Ncill, Robert J. GeAl i(p: Politicigan d Stratmdst. New York: Fredcrick A. Praeger, 1969. Pimlotk John. Vktnam

  1. The Amateur Astronomer's Introduction to the Celestial Sphere

    Science.gov (United States)

    Millar, William

    2005-12-01

    This introduction to the night sky is for amateur astronomers who desire a deeper understanding of the principles and observations of naked-eye astronomy. It covers topics such as terrestrial and astronomical coordinate systems, stars and constellations, the relative motions of the sky, sun, moon and earth leading to an understanding of the seasons, phases of the moon, and eclipses. Topics are discussed and compared for observers located in both the northern and southern hemispheres. Written in a conversational style, only addition and subtraction are needed to understand the basic principles and a more advanced mathematical treatment is available in the appendices. Each chapter contains a set of review questions and simple exercises to reinforce the reader's understanding of the material. The last chapter is a set of self-contained observation projects to get readers started with making observations about the concepts they have learned. William Charles Millar, currently Professor of Astronomy at Grand Rapids Community College in Michigan, has been teaching the subject for almost twenty years and is very involved with local amateur astronomy groups. Millar also belongs to The Planetary Society and the Astronomical Society of the Pacific and has traveled to Europe and South America to observe solar eclipses. Millar holds a Masters degree in Physics from Western Michigan University.

  2. The activity profile of elite male amateur boxing.

    Science.gov (United States)

    Davis, Philip; Benson, Peter R; Pitty, James D; Connorton, Andrew J; Waldock, Robert

    2015-01-01

    An activity profile of competitive 3 × 3-min elite-level amateur boxing was created from video footage of 29 Olympic final and semifinal bouts in 39 male boxers (mean ± SD) age 25.1 ± 3.6 y, height 178.3 ± 10.4 cm, and body mass 69.7 ± 16.5 kg. Boxing at this level requires the ability to maintain an activity rate of ~1.4 actions/s, consisting of ~20 punches, ~2.5 defensive movements, and ~47 vertical hip movements, all per minute, over 3 subsequent rounds lasting ~200 s each. Winners had higher total punches landed (P = .041) and a lower ratio of punches thrown to landed (P = .027) than losers in round 3. The hook rear-hand landed was also higher for winners than losers in round 2 (P = .038) and round 3 (P = .016), and defensive movements were used less by winners (P = .036). However, the results suggest that technical discrimination between winners and losers is difficult; bout outcome may be more dependent on which punch is "lucky" enough to be scored by the judges or who appears to be dominant on the day. This study gives both boxers and coaches a good idea of where subelite boxers need to aim if they want to become among the best amateur boxers in the world.

  3. The energetics of semicontact 3 x 2-min amateur boxing.

    Science.gov (United States)

    Davis, Philip; Leithäuser, Renate M; Beneke, Ralph

    2014-03-01

    The energy expenditure of amateur boxing is unknown. Total metabolic cost (Wtot) as an aggregate of aerobic (Waer), anaerobic lactic (W[lactate]), and anaerobic alactic (WPCr) energy of a 3 × 2-min semicontact amateur boxing bout was analyzed. Ten boxers (mean ± SD [lower/upper 95% confidence intervals]) age 23.7 ± 4.1 (20.8/26.6) y, height 180.2 ± 7.0 (175.2/185.2) cm, body mass 70.6 ± 5.7 (66.5/74.7) kg performed a semicontact bout against handheld pads created from previously analyzed video footage of competitive bouts. Net metabolic energy was calculated using respiratory gases and blood [lactate]. Waer, 526.0 ± 57.1 (485.1/566.9) kJ, was higher (P boxing is predominantly aerobic. They also highlight the importance of a highly developed aerobic capacity as a prerequisite of a high activity rate during rounds and recovery of the high-energy phosphate system during breaks as interrelated requirements of successful boxing.

  4. LEADERSHIP POWER PERCEPTION OF AMATEUR AND PROFESSIONAL SOCCER COACHES ACCORDING TO THEIR MARITAL STATUS

    Directory of Open Access Journals (Sweden)

    E. Konter

    2011-11-01

    Full Text Available The purpose of this study was to analyse the leadership power perception of amateur and professional soccer coaches according to their marital status. Data were collected from 165 male soccer coaches (n=71 technical director-manager and A license, n=46 B license, n=48 amateur license. An adapted Turkish version of Power in Soccer Questionnaire-Self (PSQ-S for coaches and an information form were used for the data collection [21]. Cronbach reliability alphas of PSQ-S range between 0.65 and 0.84. Coaches’ data were analysed by Kruskal-Wallis and Mann-Whitney tests. Kruskal-Wallis analysis of PSQ-S revealed significant differences between leadership power perception of amateur and professional soccer coaches according to their marital status related to Referent Power (RP [χ[sup]2[/sup] (3 = 9.61, p0.05. The results indicated that married coaches have higher perception of RP than single coaches, irrespective of being an amateur or a professional. Comparison of professional and amateur coaches suggests that while single professional coaches have higher perception of EP than married professional coaches, the results are the reverse for amateur coaches; in other words, amateur married coaches have higher perception of EP than amateur single coaches. There is a lack of research to draw more certain conclusions. Future researchers should also take into consideration personality, psychological skills, sport experience, age, taking responsibility, attributions, expectations, emotions, perception of achievement, etc.

  5. Amateur Hour: Culture, Capital, and the Royal Shakespeare Company's Open Stages Initiative

    Science.gov (United States)

    Flynn, Molly

    2017-01-01

    In 2011, the Royal Shakespeare Company (RSC) began a series of collaborations with established amateur theatre groups from across the UK. The initiative now known as Open Stages became one of the most ambitious educational outreach programmes ever run by the RSC, engaging hundreds of amateur theatre practitioners in a process of skills sharing and…

  6. Organized network for supporting the amateur-scientist co-operation in Finland

    Science.gov (United States)

    Mäkelä, V.; Haukka, H.; Oksanen, A.; Hentunen, V.-P.

    2014-04-01

    PROAM network is a working group of Ursa Astronomical Association [1] for supporting Finnish amateur astronomers participating to co-operation projects between professional and amateur astronomers. The network relays the information on projects, maintains professional contacts and arranges training on technical skills for research work.

  7. Differences in injury risk and characteristics between Dutch amateur and professional soccer players

    NARCIS (Netherlands)

    Anne-Marie van Beijsterveldt, A. M C; Stubbe, J. H.; Schmikli, S. L.; Van De Port, I. G L; Backx, F. J G

    2015-01-01

    Objectives To compare the incidence and characteristics of injuries between Dutch amateur and professional male soccer players during one entire competition season. Design A prospective two-cohort design. Methods During the 2009–2010 season, 456 Dutch male amateur soccer players and 217 professional

  8. Upstream region, foreshock and bow shock wave at Halley's Comet from plasma electron measurements

    International Nuclear Information System (INIS)

    Anderson, K.A.; Carlson, C.W.; Curtis, D.W.

    1986-01-01

    Halley plasma electron parameters from 2.7 million km from the comet nucleus to the bow shock wave at 1.1 million km and beyond are surveyed. The features of the electron foreshock lying outside the shock to a distance of 230,000 km are described. It is a region of intense solar wind-comet plasma interaction in which energetic electrons are prominent. Several spikes of electrons whose energies extend to 2.5 keV appear in front of the shock. These energetic electrons may be accelerated in the same way electrons are accelerated at the Earth's bow shock to energies of 1 to 10 keV. The direction of the electron bulk flow direction changes abruptly between 1920 and 1922 UT, and the flow speed begins a sharp decline at the same time. It is suggested that the spacecraft entered the bow shock wave between 1920 and 1922 UT. Electron density variations at Halley are very much smaller than those at Giacobini-Zinner

  9. A two component model for thermal emission from organic grains in Comet Halley

    Science.gov (United States)

    Chyba, Christopher; Sagan, Carl

    1988-01-01

    Observations of Comet Halley in the near infrared reveal a triple-peaked emission feature near 3.4 micrometer, characteristic of C-H stretching in hydrocarbons. A variety of plausible cometary materials exhibit these features, including the organic residue of irradiated candidate cometary ices (such as the residue of irradiated methane ice clathrate, and polycyclic aromatic hydrocarbons. Indeed, any molecule containing -CH3 and -CH2 alkanes will emit at 3.4 micrometer under suitable conditions. Therefore tentative identifications must rest on additional evidence, including a plausible account of the origins of the organic material, a plausible model for the infrared emission of this material, and a demonstration that this conjunction of material and model not only matches the 3 to 4 micrometer spectrum, but also does not yield additional emission features where none is observed. In the case of the residue of irradiated low occupancy methane ice clathrate, it is argued that the lab synthesis of the organic residue well simulates the radiation processing experienced by Comet Halley.

  10. Syllabus. 5. Halley radiological refresher course. Chest, musculoskeleton, G. I. and abdomen, urinary tract

    International Nuclear Information System (INIS)

    Dalla Palma, L.

    1996-01-01

    This volume brings together the papers which 33 radiologists, chosen among the leading European experts, presented at the Halley Project 1996 Refresher Course. The project started out under the aegis of the European Association of Radiology in 1992 with the aim of fostering the advancement of radiolgy in various countries of Eastern Europe: Bulgaria, the Czech Republic, Slovakia, Hungary, Poland and Romania. It was possible to set up, in 1992, 1993, 1994 and 1995, four faculties of experts in uroradiology, gastrointestinal and abdominal radiology, chest radiology and skeletal radiology. These four faculties then gave a refresher course on the four radiological subspecialities in the six nations mentioned above. This year, the fifth in the activities, the event was celebrated by inviting all the 33 speakers who took part in the four previous refresher courses to participate in a single refresher course which would review the four subspecialities in such a way as to update progress in each branch to 1996. This volume gathers together all the 33 lectures presented at this 5th Halley Refresher Course. They focus on the most up-to-date issues in radiology of the chest, gastrointestinal tract, skeleton and urinary tract. (orig./VHE)

  11. Negative Ion Chemistry in the Coma of Comet 1P/Halley

    Science.gov (United States)

    Cordiner, M. A.; Charnley, S. B.

    2012-01-01

    Negative ions (anions) were identified in the coma of comet 1P/Halley from in-situ measurements performed by the Giotto spacecraft in 1986. These anions were detected with masses in the range 7-110 amu, but with insufficient mass resolution to permit unambiguous identification. We present details of a new chemical-hydrodynamic model for the coma of comet Halley that includes - for the first time - atomic and molecular anions, in addition to a comprehensive hydrocarbon chemistry. Anion number densities arc calculated as a function of radius in the coma, and compared with the Giotto results. Important anion production mechanisms arc found to include radiative electron attachment, polar photodissociation, dissociative electron attachment, and proton transfer. The polyyne anions C4H(-) and C6H(-) arc found to be likely candidates to explain the Giotto anion mass spectrum in the range 49-73 amu. Thc CN(-) anion probably makes a significant contribution to the mass spectrum at 26 amu. Larger carbon-chain anions such as C8H(1) can explain the peak near 100 amu provided there is a source of large carbon-chain-bearing molecules from the cometary nucleus.

  12. PHYSIOLOGICAL PROFILE OF SENIOR AND JUNIOR ENGLAND INTERNATIONAL AMATEUR BOXERS

    Directory of Open Access Journals (Sweden)

    Marcus S. Smith

    2006-07-01

    Full Text Available Despite worldwide popularity of amateur boxing, research focussed on the physiological demands of the sport is limited. The physiological profile of Senior and Junior England international amateur boxers is presented. A gradual (8 to 21-days and rapid (0 to 7-days phase of body weight reduction was evident with 2.2 ± 0.3 % of the 7.0 ± 0. 8 % weight loss occurring over the final 24-hours. An increase in body weight >4% was observed following a recovery period. High urine osmolality values (> 1000 mOsm·kg-1 were recorded during training and competition. High post-competition blood lactate values (>13.5 mmol·l-1 highlighted the need for a well-developed anaerobic capacity and the importance of not entering the ring in a glycogen depleted state. The aerobic challenge of competition was demonstrated by maximum heart rate values being recorded during 'Open' sparring. Mean body fat values of 9-10% were similar to those reported for other weight classified athletes. Normal resting values were reported for hematocrit (Senior 48 ± 2 % and Junior 45 ± 2 %, haemoglobin (Senior 14.7 ± 1.0 g·dl-1 and Junior 14.5 ± 0.8 g·dl-1, bilirubin (Senior 15.3 ± 6.2 µmol·l-1-1 and ferritin (Senior 63.3 ± 45.7 ng·ml-1. No symptoms associated with asthma or exercise-induced asthma was evident. A well- developed aerobic capacity was reflected in the Senior VO2max value of 63.8 ± 4.8 ml·kg-1·min-1. Senior lead hand straight punching force (head 1722 ± 700 N and body 1682 ± 636 N was lower than the straight rear hand (head 2643 ± 1273 N and body 2646 ± 1083 N, lead hook (head 2412 ± 813 N and body 2414 ± 718 N and rear hook (head 2588 ± 1040 N and body 2555 ± 926 N. It was concluded that amateur boxing performance is dependent on the interplay between anaerobic and aerobic energy systems. Current weight making methods may lead to impaired substrate availability, leading to reduced competitive performance and an increased risk to a boxers health

  13. Quantifying the Physical Response to a Contemporary Amateur Boxing Simulation.

    Science.gov (United States)

    Finlay, Mitchell J; Greig, Matt; Page, Richard M

    2018-04-01

    Finlay, MJ, Greig, M, and Page, RM. Quantifying the physical response to a contemporary amateur boxing simulation. J Strength Cond Res 32(4): 1005-1012, 2018-This study examined the physical response to a contemporary boxing-specific exercise protocol (BSEP), based on notational analysis of amateur boxing. Nine male senior elite amateur boxers completed a 3 × 3-minute BSEP, with a 1-minute passive recovery period interspersing each round. Average (HRave) and peak (HRpeak) heart rates, average (V[Combining Dot Above]O2ave) and peak oxygen consumptions (V[Combining Dot Above]O2peak), blood lactate (BLa) concentrations, rating of perceived exertion, and both triaxial and uniaxial PlayerLoad metrics were recorded during the completion of the BSEP. Blood lactate concentration increased significantly in each round (Round 1 = 2.4 ± 1.3 mmol·L; Round 2 = 3.3 ± 1.7 mmol·L; Round 3 = 4.3 ± 2.6 mmol·L). Significantly lower HRave and HRpeak values were found in the first round (HRave: 150 ± 15 b·min; HRpeak: 162 ± 12 b·min) when compared with the second (HRave: 156 ± 16 b·min; HRpeak: 166 ± 13 b·min) and third (HRave: 150 ± 15 b·min; HRpeak: 169 ± 14 b·min). No significant differences were found in any of the V[Combining Dot Above]O2 or PlayerLoad metrics recorded during the BSEP. The BSEP based on notational analysis elicited a fatigue response across rounds, confirming its validity. The BSEP can be used as a training tool for boxing-specific conditioning with implications for reduced injury risk, and to assess the physical response to boxing-specific interventions. Moreover, the BSEP can also be manipulated to suit all levels of participants or training phases, with practical applications in performance monitoring and microcycle periodization.

  14. Getting started in radio astronomy beginner projects for the amateur

    CERN Document Server

    Arnold, Steven

    2013-01-01

    Radio astronomy is a mystery to the majority of amateur astronomers, yet it is the best subject to turn to when desirous of an expanded knowledge of the sky. This guide intends to instruct complete newcomers to radio astronomy, and provides help for the first steps on the road towards the study of this fascinating subject. In addition to a history of the science behind the pursuit, directions are included for four easy-to-build projects, based around long-term NASA and Stanford Solar Center projects. The first three projects constitute self-contained units available as kits, so there is no nee

  15. The cult of the amateur in agriculture threatens food security.

    Science.gov (United States)

    Trewavas, Anthony

    2008-09-01

    The incorporation of science and technology into agriculture has led to enormous growth in crop yields, providing food security in many countries. From the 1950s onwards there has been increasing interference in agricultural policy by a few scientists who are marginal to agriculture and from a variety of unqualified groups. These groups and individuals have used fear and anxiety and have greatly exaggerated minor problems to persuade an unqualified public of supposed dangers in food and to try and change agricultural policy. Fear and emotion do not lead to good policy, and the cult of the amateur that has developed could have serious repercussions on vital food security and future agriculture in developing countries; it must be soundly rejected.

  16. Sports drink consumption and dental erosion among amateur runners.

    Science.gov (United States)

    Antunes, Leonardo S; Veiga, Lais; Nery, Victor S; Nery, Caio C; Antunes, Lívia A

    2017-01-01

    This cross-sectional study assessed the prevalence and potential risk factors for dental erosion in amateur athletes at running events. After a sample calculation, 108 runners from the state of Rio de Janeiro, Brazil, were selected and examined for dental wear by a single trained and calibrated evaluator (kappa = 1.00). To identify risk factors, the runners were interviewed by using a standardized, semi-structured questionnaire. The average (SD) age of the runners was 34.2 (11.45), and the prevalence of dental erosion was 19.4%. Gastroesophageal reflux, running frequency per week, and time expended during competition were associated with dental erosion (P dental erosion was not significant (P > 0.05). In conclusion, dental erosion was not associated with use of isotonic drinks. However, frequency of exercise per week and gastroesophageal reflux were risk factors for dental erosion.

  17. Sacral Stress Fracture in an Amateur Badminton Player

    Directory of Open Access Journals (Sweden)

    Yusuke Yuasa

    2017-01-01

    Full Text Available Sacral stress fractures are rare among athletes but have been reported most frequently in long distance runners. We report herein the first case of a sacral stress fracture in an amateur badminton player. A 16-year-old, left-handed adolescent girl, who had just started to play badminton 3 months previously, complained of acute left buttock pain when she received a shuttlecock. Magnetic resonance imaging revealed a linear lesion of the left sacrum with low signal intensity on T1- and high signal intensity on T2-weighted images, which was consistent with a stress fracture. Conservative treatment with rest relieved her symptoms. Her fracture was considered to have occurred due to repetition of an exercise that caused excessive vertical power.

  18. Against Amateur Economies: Spec Work Competitions and the Anti-spec Movement

    Directory of Open Access Journals (Sweden)

    Helen Kennedy

    2013-04-01

    Full Text Available The rise and rise of the amateur cultural producer has been greeted with a spectacular amount of celebratory rhetoric, in both popular and academic writing . It has also been criticised, often for the inferior quality of amateur productions compared to the fruits of professional labour. But apart from that by a small number of journalism scholars, little empirical research has been carried out with professional creative labourers about the impact of amateur economies on their work, and their responses to amateur production practices. This article addresses that gap, and also counterbalances the dominant celebratory discourse by focusing on an initiative that is critical of amateur economies and that emerges from creative workers themselves: the anti-spec movement within design industries. Anti-spec activists campaign against speculative (or spec work, which is seen as one problematic materialisation of crowdsourced, amateur economies. Here, it is argued that responses to spec work can be understood in relation to designers’ ethics and values and the extent to which they feel that these are thrown into question by amateur activity.

  19. Getting organized: A history of amateur astronomy in the United States

    Science.gov (United States)

    Williams, Thomas R.

    2000-10-01

    During the twentieth century, American amateur astronomers attempted to form national organizations with structures and intents similar to the British Astronomical Association (BAA), an amateur organization dedicated to the advancement of astronomy and widely admired by American amateurs and professionals alike. The Society for Practical Astronomy (1910), the American Amateur Astronomers Association (1935), and the National Astronomical Association (1945) were each intended to facilitate amateur scientific contributions in BAA-like topical sections, but each of these societies failed. Founded in 1911, the American Association of Variable Star Observers (AAVSO) and the American Meteor Society (AMS) provided an alternative for amateur astronomers who were interested in those specific topics. However, it was not until 1947, when the Association of Lunar and Planetary Observers (ALPO) formed, that another large segment of amateur astronomers found a home for their interests. A second mode of national organization succeeded at mid- century and grew to include most avocational astronomers. Founded in 1947, the Astronomical League consists of regional associations of local societies, and is oriented largely towards recreational astronomy. The League sponsors annual national and regional conventions, but contributes little to scientific programs. This study concludes that avocational astronomy cannot simply be compared with professional astronomy, and instead must be viewed on its own terms as a complex and variegated field. Although the failure of American amateurs to form a BAA-like organization was at first disappointing, the specialized associations of observers, together with a separate and larger organization devoted to recreational astronomy, have served the American astronomical community well. Professional support for both types of activity was facilitated in this mode of organization. The style in which professional support is rendered appears to be important

  20. Should I Let My Child Watch Television?

    Science.gov (United States)

    Bharadwaj, Balaji

    2013-01-01

    While the prevalence of autism has been increasing globally, there is a search for the causative factors behind the rise. The point of view presented here examines the possibility of children brought up in social deprivation and watching television being at higher risk for developing autistic symptoms. The association is evident in the clinical…

  1. Whale Watching in the Gulf of Maine.

    Science.gov (United States)

    Carkin, Clayton A.

    1985-01-01

    Describes a variety of teaching strategies to prepare a class for a whale watching field trip. Guidelines for recording a sighting, pictures and statistics for commonly and/or occasionally seen whales, and hints for avoiding sea sickness are included. (DH)

  2. Astronaut Bonnie Dunbar watches crewmates during training

    Science.gov (United States)

    1994-01-01

    Astronaut Bonnie J. Dunbar, STS-71 mission specialist, smiles as she watches a crew mate (out of frame) make a simulated parachute landing in nearby water. The action came as part of an emergency bailout training session in the JSC Weightless Environment

  3. Preliminary results of the Vega-1 and Vega-2 space probes rendezvous with the Halley comet

    International Nuclear Information System (INIS)

    Anon.

    1986-01-01

    Preliminary results of the Halley comet investigation using the Vega-1 and Vega-2 space probes which passed on the 6th and 9th of March, 1986 the comet nucleus at a distance of 9000 and 8200 respectively, are presented. The comet nucleus appeared to be one of the darkest bodies of the Solar system: its albedo is just about 4%. The IR spectrum analysis has shown, that water and carbon dioxide appear to be the main components of the comet material. Mass analysis points out to the presence in the comet dust of iron, oxygen and silicon. It is ascertained, that about 30 t of water vapors and about 5-10 t of dust are evaporated from the comet nucleus surface in one second. Solar wind interaction with the comet streched atmosphere was investigated

  4. Airborne spectrophotometry of P/Halley from 20 to 65 microns

    Science.gov (United States)

    Glaccum, W.; Moseley, S. H.; Campins, H.; Loewenstein, R. F.

    1986-01-01

    Simultaneous 20 to 65 microns spectrometry and 100 microns photometry of P/Halley obtained on board the Kuiper Airborne Observatory (KAO) in 1985 Dec. and 1986 April are discussed. Spectra with resolution 30 to 50 were obtained with the NASA/Goddard 24 channel grating spectrometer. Measurements were made on the nucleus as well as 5 points along and perpendicular to the Sun-tail direction. The observations reveal the absence of any strong spectral features. The color temperature of the dust varies over time scales as short as 2 days, but is higher than that expected for a rapidly rotating blackbody at the same distance from the Sun. The color temperature does not vary within 1 arcmin of the nucleus, but the coma is brighter on the sunward side than on the antisunward side.

  5. Relationship between wave energy and free energy from pickup ions in the Comet Halley environment

    Science.gov (United States)

    Huddleston, D. E.; Johnstone, A. D.

    1992-01-01

    The free energy available from the implanted heavy ion population at Comet Halley is calculated by assuming that the initial unstable velocity space ring distribution of the ions evolves toward a bispherical shell. Ultimately this free energy adds to the turbulence in the solar wind. Upstream and downstream free energies are obtained separately for the conditions observed along the Giotto spacecraft trajectory. The results indicate that the waves are mostly upstream propagating in the solar wind frame. The total free energy density always exceeds the measured wave energy density because, as expected in the nonlinear process of ion scattering, the available energy is not all immediately released. An estimate of the amount which has been released can be obtained from the measured oxygen ion distributions and again it exceeds that observed. The theoretical analysis is extended to calculate the k spectrum of the cometary-ion-generated turbulence.

  6. Detection of OH from Comet Halley in the far-infrared

    International Nuclear Information System (INIS)

    Stacey, G.J.; Lugten, J.B.; Genzel, R.

    1986-01-01

    The 2 Pi 3/2 (J = 5/2 yields 3/2 + yields - parity) transition of OH was detected in comet Halley at 119.44 microns. The upper limit to the line intensity of the - yields + parity transition is 119.23 microns. The ratio of these lines is consistent with radiative pumping of the rotational levels through absorption of near ultraviolet solar photons which excite the low lying vibrational levels of OH. The far-infrared lines probe the inner regions of the coma where OH is produced through photodissociation of a parent molecule (presumably H 2 O). Hence, these lines complement the 18 cm radio measurements which are sensitive to the outer regions of the comet coma. The OH production rate is highly model dependent but is of the order 2 to 4 times 10 to the 29th power molecules/sec

  7. Water-Group Ion Distributions in the Mid-Cometosheath of Comet Halley

    Science.gov (United States)

    Huddleston, D. E.; Neugebauer, M.; Goldstein, B. E.

    1993-01-01

    In the mid-cometosheath of comet Halley (1-2x10^5 km from the nucleus) the center- of-mass plasma frame is approximately the bulk flow velocity of the cometary ions, and the Alfven wave speed is an appreciable fraction of the flow speed. Here, the peaks of the water-group ion distributions observed by the Giotto Ion Mass Spectrometer are at velocities consistently below the expected pickup speed. It is shown that this effect is consistent with the scattering of the new pickup ions onto a bispherical shell distribution. The model does not fit the data inside similar 1.2x10^5 km however, possibly as a result of the growing importance of collisions or the presence of other processes such as scattering on obliquely-propagating magnetosonic waves.

  8. Quasi-periodic variations of cometary ion fluxes at large distances from comet Halley

    Energy Technology Data Exchange (ETDEWEB)

    Richter, A.K.; Daly, P.W.; Verigin, M.I.; Gringauz, K.I.; Erdos, G.; Kecskemety, K.; Somogyi, A.J.; Szego, K.; Varga, A.; McKenna-Lawlor, S.

    1989-04-01

    Large variations, with a period of about 4 h, in the energetic ion fluxes have been observed far upstream (between 2 and 10 million kilometers) of comet Halley on both the Vega-1 and Giotto spacecraft. We have fitted the cometocentric distances of the occurrences to a simple model of expanding shells of neutral particles, the production of which is modulated by the spin of the comet nucleus, and have achieved excellent agreement between the two spacecraft. We derive an expansion speed for the neutrals of 6.18 +- 0.14 km s/sup -1/. Possible candidates for the neutrals are hydrogen atoms, created by the photo-dissociation of OH with a speed of 8 km s/sup -1/, or oxygen atoms, produced from the photo-dissociation of CO/sub 2/ with a speed of 6.5 km s/sup -1/.

  9. Halley comet position in structure of the comet origin general scheme

    International Nuclear Information System (INIS)

    Davydov, V.D.

    1988-01-01

    Attempt to explain data on the Halley comet nucleus figure by photographes received from space probes in 1986 was undertaken. Peanut-like nucleus might be formed from two bodies former system under specific conditions. This hypothesis preliminary development is made; solution way for the problem about quantitative characteristics of collision and destruction is found. Quantitative assessments confirm retention possibility of two space icebergs original form after their ''docking'' within relative velocity range up to a few meters per second. Then complex with visible saddle point between two jointed fragments is formed. The hypothesis suggested is well inscribed in the origin general scheme of comets with nucleus different types, and from general scheme one may draw up the most important details to this hypothesis (for example, power mechanism of binary system formation and reasons of its destabilization)

  10. Produccion Gaseosa del Cometa Halley: Erupciones Y Fotodisociacion del Radical OH

    Science.gov (United States)

    Silva, A. M.; Mirabel, I. F.

    1990-11-01

    RESUMEN:En este trabajo informamos la detecci6n de 20 erupciones en la li'nea de =18cm (1667MHz) del radical OH en el Cometa Halley.Las observaciones incluyen todos los monitoreos existentes y se extienden desde 120 dias antes del perihelio hasta 90 dias despues.Se detectan bruscos crecimientos en el flujo medido,hasta un factor 1O,seguidos por decaimientos lentos asociados con la fotodisociaci6n del OH. Se obtuvieron valores para el tiempo de vida fotoquimico del OH y del H2O basandose en el modelo desarrollado previamente por Silva(1988). Esos tiempos de vida estan de acuerdo con predicciones teoricas y con las observaciones en el Ultravioleta, y los resultados, los que son fuertemente dependientes de la velocidad heliocentrica del Coineta (variando hasta un factor 6), han sido calculados para varios rangos de velocidad entre +28 y -28 km/seg. Key wo'L :

  11. Do Elite and Amateur Soccer Players Outperform Non-Athletes on Neurocognitive Functioning? A Study Among 8-12 Year Old Children.

    Science.gov (United States)

    Verburgh, Lot; Scherder, Erik J A; Van Lange, Paul A M; Oosterlaan, Jaap

    2016-01-01

    Research suggested a positive association between physical fitness and neurocognitive functioning in children. Aim of the present study is to investigate possible dose-response relationships between diverse daily physical activities and a broad range of neurocognitive functions in preadolescent children. Furthermore, the relationship between several sedentary behaviours, including TV-watching, gaming and computer time, and neurocognitive functioning will be investigated in this group of children. A total of 168 preadolescent boys, aged 8 to 12 years, were recruited from various locations, including primary schools, an amateur soccer club, and a professional soccer club, to increase variability in the amount of participation in sports. All children performed neurocognitive tasks measuring inhibition, short term memory, working memory, attention and information processing speed. Regression analyses examined the predictive power of a broad range of physical activities, including sports, active transport to school, physical education (PE), outdoor play, and sedentary behaviour such as TV-watching and gaming, for neurocognitive functioning. Time spent in sports significantly accounted for the variance in inhibition, short term memory, working memory and lapses of attention, where more time spent in sports was associated with better performance. Outdoor play was also positively associated with working memory. In contrast, time spent on the computer was negatively associated with inhibition. Results of the current study suggest a positive relationship between participation in sports and several important neurocognitive functions. Interventions are recommended to increase sports participation and to reduce sedentary behaviour in preadolescent children.

  12. Do Elite and Amateur Soccer Players Outperform Non-Athletes on Neurocognitive Functioning? A Study Among 8-12 Year Old Children.

    Directory of Open Access Journals (Sweden)

    Lot Verburgh

    Full Text Available Research suggested a positive association between physical fitness and neurocognitive functioning in children. Aim of the present study is to investigate possible dose-response relationships between diverse daily physical activities and a broad range of neurocognitive functions in preadolescent children. Furthermore, the relationship between several sedentary behaviours, including TV-watching, gaming and computer time, and neurocognitive functioning will be investigated in this group of children.A total of 168 preadolescent boys, aged 8 to 12 years, were recruited from various locations, including primary schools, an amateur soccer club, and a professional soccer club, to increase variability in the amount of participation in sports. All children performed neurocognitive tasks measuring inhibition, short term memory, working memory, attention and information processing speed. Regression analyses examined the predictive power of a broad range of physical activities, including sports, active transport to school, physical education (PE, outdoor play, and sedentary behaviour such as TV-watching and gaming, for neurocognitive functioning.Time spent in sports significantly accounted for the variance in inhibition, short term memory, working memory and lapses of attention, where more time spent in sports was associated with better performance. Outdoor play was also positively associated with working memory. In contrast, time spent on the computer was negatively associated with inhibition.Results of the current study suggest a positive relationship between participation in sports and several important neurocognitive functions. Interventions are recommended to increase sports participation and to reduce sedentary behaviour in preadolescent children.

  13. 47 CFR 80.304 - Watch requirement during silence periods.

    Science.gov (United States)

    2010-10-01

    ....304 Section 80.304 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES STATIONS IN THE MARITIME SERVICES Safety Watch Requirements and Procedures Ship Station Safety Watches § 80.304 Watch requirement during silence periods. Each ship station operating on...

  14. Amateur Radio on the International Space Station - the First Operational Payload on the ISS

    Science.gov (United States)

    Bauer, F. H.; McFadin, L.; Steiner, M.; Conley, C. L.

    2002-01-01

    As astronauts and cosmonauts have adapted to life on the International Space Station (ISS), they have found Amateur Radio and its connection to life on Earth to be a constant companion and a substantial psychological boost. Since its first use in November 2000, the first five expedition crews have utilized the amateur radio station in the FGB to talk to thousands of students in schools, to their families on Earth, and to amateur radio operators around the world. Early in the development of ISS, an international organization called ARISS (Amateur Radio on the International Space Station) was formed to coordinate the construction and operation of amateur radio (ham radio) equipment on ISS. ARISS represents a melding of the volunteer teams that have pioneered the development and use of amateur radio equipment on human spaceflight vehicles. The Shuttle/Space Amateur Radio Experiment (SAREX) team enabled Owen Garriott to become the first astronaut ham to use amateur radio from space in 1983. Since then, amateur radio teams in the U.S. (SAREX), Germany, (SAFEX), and Russia (Mirex) have led the development and operation of amateur radio equipment on board NASA's Space Shuttle, Russia's Mir space station, and the International Space Station. The primary goals of the ARISS program are fourfold: 1) educational outreach through crew contacts with schools, 2) random contacts with the Amateur Radio public, 3) scheduled contacts with the astronauts' friends and families and 4) ISS-based communications experimentation. To date, over 65 schools have been selected from around the world for scheduled contacts with the orbiting ISS crew. Ten or more students at each school ask the astronauts questions, and the nature of these contacts embodies the primary goal of the ARISS program, -- to excite student's interest in science, technology and amateur radio. The ARISS team has developed various hardware elements for the ISS amateur radio station. These hardware elements have flown to ISS

  15. A complete manual of amateur astronomy tools and techniques for astronomical observations

    CERN Document Server

    Sherrod, P Clay

    2003-01-01

    Concise, highly readable book discusses the selection, set-up, and maintenance of a telescope; amateur studies of the sun; lunar topography and occultations; and more. 124 figures. 26 halftones. 37 tables.

  16. Amateurism in an Age of Professionalism: An Empirical Examination of an Irish Sporting Culture: The GAA

    Directory of Open Access Journals (Sweden)

    Ian Keeler

    2013-07-01

    This research study recommends that the GAA adopt an innovative approach, through strategic decision-making, to allow the GAA to maintain its amateur ethos, and, yet, successfully compete in the professional sporting market. The strong links with the community must be both nurtured and enhanced. The GAA and Gaelic games must embrace the challenges that the branding success of foreign sports has brought. Player welfare issues for the elite players must be addressed while continuing to protect the club and its amateur structures. The study looks at the key metrics that are required to evolve the GAA. This entails not only focusing on the perceived importance of the amateur ethos to the GAA, but also developing the marketing, branding and profiling of Gaelic games to enhance the performance of an amateur sporting organization in an era of increased professionalism in sport.

  17. Checking Trace Nitrate in Water and Soil Using an Amateur Scientist's Measurement Guide.

    Science.gov (United States)

    Baker, Roger C. Jr.

    1995-01-01

    Presents a test that can measure nitrate nitrogen ions at about 0.1 mg/L using concentration. Uses inexpensive accessible materials and can be used by amateur environmentalists for monitoring water nitrate levels. (JRH)

  18. Toxicological findings in fatally injured pilots of 979 amateur-built aircraft accidents.

    Science.gov (United States)

    2011-12-01

    "Biological samples collected from fatally injured pilots in aviation accidents involving all types of aircraft, including : amateur-built aircraft, are submitted to the Civil Aerospace Medical Institute (CAMI) for accident investigation. : These sam...

  19. ‘Everyone can be a designer’: Amateurs in Contemporary Fashion Culture

    DEFF Research Database (Denmark)

    Mackinney-Valentin, Maria; Holt, Fabian

    2015-01-01

    This article offers an analytical perspective on the implications of recent media evolutions for the conventional roles of the designer, with a particular emphasis on the changing relation between amateur and professional design in fashion culture. The article builds on the recent media studies...... literature on the intensification of media communications in the early 21st century and how it involves deeper transformations — mediatizations — of many areas in business and society. There are already extensive literatures on the mediatization of finance, politics, food, and religion, for instance, but how...... creativity. The article is a conceptual paper that begins by situating the evolution of amateur design in theories of media and modernity to offer a contemporary theorization of amateur design and to establish an analytical perspective from which core aspects of the changing amateur/industry divide...

  20. Spectrophotometry of 25 comets - Post-Halley updates for 17 comets plus new observations for eight additional comets

    Science.gov (United States)

    Newburn, Ray L., Jr.; Spinrad, Hyron

    1989-01-01

    The best possible production figures within the current post-Halley framework and available observations are given for H2O, O(1D), CN, C3, C2 and dust in 25 comets. Of these, the three objects with the smallest mixing ratios of all minor species have moderate to little or no dust and appear 'old'. Comets with large amounts of CN are very dusty, and there is a clear correlation of CN with dust, although comets with little or no dust still have some CN. Thus, CN appears to have at least two sources, dust and one or more parent gases. Also, the C2/CN production ratio changes continuously with heliocentric distance in every comet considered, suggesting that C2 production may be a function of coma density as well as parental abundance. Dust production ranges from essentially zero in Comet Sugano-Saigusa-Fujikawa up to 67,000 kg/s for Halley on March 14, 1986.

  1. MARKETING IN AMATEUR SPORTS: HOW TO MARKET A FLOORBALL CLUB WITH LIMITED RESOURCES

    OpenAIRE

    Heino, Ville

    2015-01-01

    The purpose of this thesis is to identify the differences that appear in sports marketing in comparison to the more traditional fields of marketing, as well as the differences between marketing in amateur sports and professional sports. A Swedish amateur floorball team was consulted in order to gather information and to provide a practical example and development suggestions for the team’s marketing communications. The findings implicate that there are vast differences between sports marketin...

  2. Self-reported activity level and knee function in amateur football players

    DEFF Research Database (Denmark)

    Frobell, R B; Svensson, E; Göthrick, M

    2008-01-01

    ) amateur football players in 10 football clubs from each division below national level participated in the study. Self-reported Tegner Activity Scale, and the Knee injury and Osteoarthritis Outcome Score (KOOS) are the main outcome measures. Older age, female gender and lower level of competition (football...... is recommended. We suggest that self-reported Tegner Activity Scale scores should be adjusted for age, gender and level of competition. In amateur football players, KOOS scores do not need adjustment for age and gender....

  3. The Analysis of Knee Joint Movement During Golf Swing in Professional and Amateur Golfers

    OpenAIRE

    M.Somjarod; V. Tanawat; l. Weerawat

    2011-01-01

    The understanding of knee movement during swing importance for golf swing improving and preventing injury. Thirty male professional and amateur golfers were assigned to swing time by time for 3 times. Data from a vedio-based motion capture were used to compute knee joint movement variables. The results showed that professional and amateur golfers were significantly in left knee flexion angle at the impact point and mid follow through phase. Nevertheless, left knee externa...

  4. Eyewitnesses of History: Italian Amateur Cinema as Cultural Heritage and Source for Audiovisual and Media Production

    OpenAIRE

    Simoni, Paolo

    2015-01-01

    abstractThe role of amateur cinema as archival material in Italian media productions has only recently been discovered. Italy, as opposed to other European countries, lacked a local, regional and national policy for the collection and preservation of private audiovisual documents, which led, as a result, to the inaccessibility of the sources. In 2002 the Archivio Nazionale del Film di Famiglia (Italy’s Amateur Film Archive), founded in Bologna by the Home Movies Association, became the refere...

  5. Eyewitnesses of History: Italian Amateur Cinema as Cultural Heritage and Source for Audiovisual and Media Production

    Directory of Open Access Journals (Sweden)

    Paolo Simoni

    2015-12-01

    Full Text Available The role of amateur cinema as archival material in Italian media productions has only recently been discovered. Italy, as opposed to other European countries, lacked a local, regional and national policy for the collection and preservation of private audiovisual documents, which led, as a result, to the inaccessibility of the sources. In 2002 the Archivio Nazionale del Film di Famiglia (Italy’s Amateur Film Archive, founded in Bologna by the Home Movies Association, became the reference repository of home movies and amateur cinema, promoting the availability of a cultural heritage that had previously been neglected. Today, it preserves about 5,000 hours of footage, contributes to documentary film productions and acts as a cultural and production center. The impact factor of the Home Movies Archive on the Italian audiovisual scenario and the sustainable perspectives strengthen the awareness that amateur film offers new opportunities to discover and represent the past from a different perspective, the one of an eyewitness “from below”. The article overviews the European and Italian discovery of amateur cinema as historical source from the seventies, and some cases from the Italian panorama during the last fifteen years, which powerfully raised the attention on home movies and amateur archive material.

  6. Astronaut Pedro Duque Watches A Water Bubble

    Science.gov (United States)

    2003-01-01

    Aboard the International Space Station (ISS), European Space Agency astronaut Pedro Duque of Spain watches a water bubble float between a camera and himself. The bubble shows his reflection (reversed). Duque was launched aboard a Russian Soyuz TMA-3 spacecraft from the Baikonur Cosmodrome, Kazakhstan on October 18th, along with expedition-8 crew members Michael C. Foale, Mission Commander and NASA ISS Science Officer, and Cosmonaut Alexander Y. Kaleri, Soyuz Commander and flight engineer.

  7. Tracking Steps on Apple Watch at Different Walking Speeds.

    Science.gov (United States)

    Veerabhadrappa, Praveen; Moran, Matthew Duffy; Renninger, Mitchell D; Rhudy, Matthew B; Dreisbach, Scott B; Gift, Kristin M

    2018-04-09

    QUESTION: How accurate are the step counts obtained from Apple Watch? In this validation study, video steps vs. Apple Watch steps (mean ± SD) were 2965 ± 144 vs. 2964 ± 145 steps; P Apple Watch steps when compared with the manual counts obtained from video recordings. Our study is one of the initial studies to objectively validate the accuracy of the step counts obtained from Apple watch at different walking speeds. Apple Watch tested to be an extremely accurate device for measuring daily step counts for adults.

  8. Astrophysics is easy! an introduction for the amateur astronomer

    CERN Document Server

    Inglis, Michael

    2015-01-01

    Astrophysics is often –with some justification – regarded as incomprehensible without the use of higher mathematics. Consequently, many amateur astronomers miss out on some of the most fascinating aspects of the subject. Astrophysics Is Easy! cuts through the difficult mathematics and explains the basics of astrophysics in accessible terms. Using nothing more than plain arithmetic and simple examples, the workings of the universe are outlined in a straightforward yet detailed and easy-to-grasp manner.   The original edition of the book was written over eight years ago, and in that time, advances in observational astronomy have led to new and significant changes to the theories of astrophysics. The new theories will be reflected in both the new and expanded chapters.   A unique aspect of this book is that, for each topic under discussion, an observing list is included so that observers can actually see for themselves the concepts presented –stars of the spectral sequence, nebulae, galaxies, even black ...

  9. Motivation and burnout among top amateur rugby players.

    Science.gov (United States)

    Cresswell, Scott L; Eklund, Robert C

    2005-03-01

    Self-determination theory has proven to be a useful theoretical explanation of the occurrence of ill-being on a variety of accounts. Self-determination theory may also provide a useful explanation of the occurrence of athlete burnout. To date, limited evidence exists to support links between motivation and burnout. To examine relationships and potential causal directions among burnout and types of motivation differing in degree of self-determination. Data were collected on burnout using the Athlete Burnout Questionnaire and Sport Motivation Scale from 392 top amateur male rugby players. Structural equation modeling procedures were employed to evaluate a measurement model and three conceptually grounded structural models. One conceptual model specified concomitant (noncausal) relationships between burnout and motivations varying in self-determination. The other conceptual models specified causal pathways between burnout and the three motivation variables considered in the investigation (i.e., intrinsic motivation, external regulation, and amotivation). Within the models, amotivation, the least self-determined type of motivation, had a large positive association with burnout. Externally regulated motivation had trivial and nonsignificant relationships with burnout. Self-determined forms of motivation (i.e., intrinsic motivation) exhibited significant negative associations with burnout. Overall the results support the potential utility of a self-determination theory explanation of burnout. As all models displayed reasonable and comparable fits, further research is required to establish the nature (concomitant vs directional causal vs reciprocal causal) of the relationship between burnout and motivation.

  10. [Muscular trunk stability in professional and amateur volleyball players].

    Science.gov (United States)

    Miltner, O; Siebert, C; Tschaepe, R; Maus, U; Kieffer, O

    2010-03-01

    The aim of this study was to analyse the efficiency of muscular activity in the trunk stabilisation of professional volleyball players compared to a group of amateur hobby players. The results were compared amongst the groups as well as with a reference group consisting of asymptomatic individuals. The question to be answered was whether or not professional volleyball players possess a characteristic strength profile in their trunk musculature and if differences exist with regard to the individuals' competitive playing level. In this comparative study 12 professional volleyball players (German Bundesliga) and 18 non-professional volleyball players were analysed with regard to their isometric strength profile in all three planes. The reference group was provided by the Proxomed company, which had previously analysed healthy untrained individuals (n = 1045) of various age groups. A sports-specific profile for the musculature of volleyball players revealed a significant reduction in the flexion and rotation strength as well as a well-developed lateral flexion strength (highly significant when compared to the reference group). With reference to the level played, better strength values in flexion and lateral flexion were found among the professional athletes. Professional volleyball players present with a characteristic trunk musculature strength profile. A detailed analysis of the muscle strength of the spine as part of a sports medicine work-up could prove helpful in preventing injuries and overuse problems in professional and hobby volleyball players.

  11. Catastrophic cervical spinal injury in an amateur college wrestler.

    Science.gov (United States)

    Narayana Kurup, Jayakrishnan Kelamangalathu; Jampani, Ravitheja; Mohanty, Simanchal P

    2017-07-18

    A young amateur wrestler presented with a burst fracture of the seventh cervical vertebra with complete paraplegia. He was treated with surgery for spine stabilisation and was actively rehabilitated. Adolescents and teenagers are indulging in high-contact sports like wrestling, without proper training and technical know-how, which can lead to severe injuries and possibly, permanent handicap or death. Trainers, assistants and institutions should be well equipped to diagnose and provide initial care of people with a spinal injury to prevent a partial injury from progressing to complete injury. Athletes, coaches and the public should be aware of methods of first aid and how to transport a patient with a cervical spine injury. Authorities should take steps to improve infrastructures in training institutions and ambulance services. Specialised spinal centres should be established throughout the country for management and rehabilitation of patients with paraplegia. © BMJ Publishing Group Ltd (unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  12. Amateur boxing: activity profile of winners and losers.

    Science.gov (United States)

    Davis, Philip; Wittekind, Anna; Beneke, Ralph

    2013-01-01

    An activity profile of competitive 3 × 2-min novice-level amateur boxing was created based on video footage and postbout blood [La] in 32 male boxers (mean ± SD) age 19.3 ± 1.4 y, body mass 62.6 ± 4.1 kg. Winners landed 18 ± 11 more punches than losers by applying more lead-hand punches in round 1 (34.2 ± 10.9 vs 26.5 ± 9.4), total punches to the head (121.3 ± 10.2 vs 96.0 ± 9.8), and block and counterpunch combinations (2.8 ± 1.1 vs. 0.1 ± 0.2) over all 3 rounds and punching combinations (44.3 ± 6.4 vs 28.8 ± 6.7) in rounds 1 and 3 (all P < .05). In 16 boxers, peak postbout blood [La] was 11.8 ± 1.6 mmol/L irrespective of winning or losing. The results suggest that landing punches requires the ability to maintain a high frequency of attacking movements, in particular the lead-hand straight punch to the head together with punching combinations. Defensive movements must initiate a counterattack. Postbout blood [La] suggests that boxers must be able to tolerate a lactate production rate of 1.8 mmol · L-1 · min-1 and maintain skillful techniques at a sufficient activity rate.

  13. Human seasonal and circadian studies in Antarctica (Halley, 75°S).

    Science.gov (United States)

    Arendt, Josephine; Middleton, Benita

    2018-03-01

    Living for extended periods in Antarctica exposes base personnel to extremes of daylength (photoperiod) and temperature. At the British Antarctic Survey base of Halley, 75°S, the sun does not rise for 110 d in the winter and does not set for 100 d in summer. Photoperiod is the major time cue governing the timing of seasonal events such as reproduction in many species. The neuroendocrine signal providing photoperiodic information to body physiology is the duration of melatonin secretion which reflects the length of the night: longer in the short days of winter and shorter in summer. Light of sufficient intensity and spectral composition serves to suppress production of melatonin and to set the circadian timing and the duration of the rhythm. In humans early observations suggested that bright (>2000 lux) white light was needed to suppress melatonin completely. Shortly thereafter winter depression (Seasonal Affective Disorder or SAD) was described, and its successful treatment by an artificial summer photoperiod of bright white light, sufficient to shorten melatonin production. At Halley dim artificial light intensity during winter was measured, until 2003, at a maximum of approximately 500 lux in winter. Thus a strong seasonal and circadian time cue was absent. It seemed likely that winter depression would be common in the extended period of winter darkness and could be treated with an artificial summer photoperiod. These observations, and predictions, inspired a long series of studies regarding human seasonal and circadian status, and the effects of light treatment, in a small overwintering, isolated community, living in the same conditions for many months at Halley. We found little evidence of SAD, or change in duration of melatonin production with season. However the timing of the melatonin rhythm itself, and/or that of its metabolite 6-sulphatoxymelatonin (aMT6s), was used as a primary marker of seasonal, circadian and treatment changes. A substantial phase

  14. The Victorian Amateur Astronomer: Independent Astronomical Research in Britain 1820-1920

    Science.gov (United States)

    Chapman, Allan

    1999-01-01

    This is the first book to look in detail at amateur astronomy in Victorian Britain. It deals with the technical issues that were active in Victorian astronomy, and reviews the problems of finance, patronage and the dissemination of scientific ideas. It also examines the relationship between the amateur and professional in Britain. It contains a wealth of previously unpublished biographical and anecdotal material, and an extended bibliography with notes incorporating much new scholarship. In The Victorian Amateur Astronomer, Allan Chapman shows that while on the continent astronomical research was lavishly supported by the state, in Britain such research was paid for out of the pockets of highly educated, wealthy gentlemen the so-called Grand Amateurs . It was these powerful individuals who commissioned the telescopes, built the observatories, ran the learned societies, and often stole discoveries from their state-employed colleagues abroad. In addition to the Grand Amateurs , Victorian Britain also contained many self-taught amateurs. Although they belonged to no learned societies, these people provide a barometer of the popularity of astronomy in that age. In the late 19th century, the comfortable middle classes clergymen, lawyers, physicians and retired military officers took to astronomy as a serious hobby. They formed societies which focused on observation, lectures and discussions, and it was through this medium that women first came to play a significant role in British astronomy. Readership: Undergraduate and postgraduate students studying the history of science or humanities, professional historians of science, engineering and technology, particularly those with an interest in astronomy, the development of astronomical ideas, scientific instrument makers, and amateur astronomers.

  15. Blog and Podcast Watch: Neurologic Emergencies

    Directory of Open Access Journals (Sweden)

    Andrew Grock

    2016-11-01

    Full Text Available Introduction: The WestJEM Blog and Podcast Watch presents high quality open-access educational blogs and podcasts in emergency medicine (EM based on the ongoing ALiEM Approved Instructional Resources (AIR and AIR-Professional series. Both series critically appraise resources using an objective scoring rubric. This installment of the Blog and Podcast Watch highlights the topic of neurologic emergencies from the AIR series. Methods: The AIR series is a continuously building curriculum that follows the Council of Emergency Medicine Residency Director’s (CORD annual testing schedule. For each module, relevant content is collected from the top 50 Social Media Index sites published within the previous 12 months, and scored by eight board members using five equally weighted measurement outcomes: Best Evidence in Emergency Medicine (BEEM score, accuracy, educational utility, evidence based, and references. Resources scoring ≥30 out of 35 available points receive an AIR label. Resources scoring 27-29 receive an honorable mention label, if the executive board agrees that the post is accurate and educationally valuable. Results: A total of 125 blog posts and podcasts were evaluated. Key educational pearls from the 14 AIR posts are summarized, and the 20 honorable mentions are listed. Conclusion: The WestJEM Blog and Podcast Watch series is based on the AIR and AIR-Pro series, which attempts to identify high quality educational content on open-access blogs and podcasts. This series provides an expert-based, post-publication curation of educational social media content for EM clinicians with this installment focusing on neurologic emergencies.

  16. Blog and Podcast Watch: Cutaneous Emergencies

    Directory of Open Access Journals (Sweden)

    Andrew Grock

    2017-02-01

    Full Text Available The WestJEM Blog and Podcast Watch presents high quality open-access educational blogs and podcasts in emergency medicine (EM based on the ongoing Academic Life in Emergency Medicine (ALiEM Approved Instructional Resources (AIR and AIR-Professional series. Both series critically appraise resources using an objective scoring rubric. This installment of the Blog and Podcast Watch highlights the topic of cutaneous emergencies from the AIR series.    The AIR series is a continuously building curriculum that follows the Council of Emergency Medicine Residency Directors (CORD annual testing schedule. For each module, relevant content is collected from the top 50 most accessed sites per the Social Media Index published within the previous 12 months and scored by eight board members using five equally weighted measurement outcomes: Best Evidence in Emergency Medicine (BEEM score, accuracy, educational utility, evidence based, and references. Resources scoring ≥30 out of 35 available points receive an AIR label. Resources scoring 27-29 receive an “honorable mention” label, if the editorial board agrees that the post is accurate and educationally valuable. A total of 35 blog posts and podcasts were evaluated. None scored ≥30 points necessary for the AIR label, although four honorable mention posts were identified. Key educational pearls from these honorable mention posts are summarized. This Blog and Podcast Watch series is based on the AIR and AIR-Pro series, which attempts to identify high quality educational content on open-access blogs and podcasts. This series provides an expertbased, post-publication curation of educational social media content for EM clinicians with this installment focusing on cutaneous emergencies. [West J Emerg Med. 2017;18(2288-292.

  17. The in-situ cometary particulate size distribution measured for one comet: P/Halley

    International Nuclear Information System (INIS)

    McDonnell, J.A.M.; Pankiewicz, G.S.

    1989-01-01

    The close approach of Giotto to comet Halley during its 1986 apparition offered an opportunity to study the particulate mass distribution to masses of up to one gram. Data acquired by the front end channels of the highly sensitive mass spectrometer PIA and the dust shield detector system, DIDSY, provide definition to the detected distribution as close as 1000 km to the nucleus. Dynamic motion of the particulates after emission leads to a spatial differentiation affecting the size distribution in several forms: (1) ejecta velocity dispersion; (2) radiation pressure; (3) varying heliocentric distance; and (4) anisotropic nucleus emission. Transformation of the in-situ distribution from PIA and DIDSY weighted heavily by the near-nucleus fluxes leads to a presumed nucleus distribution. The data lead to a puzzling distribution at large masses, not readily explained in an otherwise monotonous power law distribution. Although temporal changes in nucleus activity could and do modify the in-situ size distribution, such an explanation is not wholly possible, because the same form is observed at differing locations in the coma where the time of flight from the nucleus greatly varies. Thus neither a general change in comet activity nor spatial variations lead to a satisfactory explanation

  18. Numerical images applied to the spatial technics: the discovery of the Halley's comet nucleus

    International Nuclear Information System (INIS)

    Abergel, A.

    1988-01-01

    For the first time, the solide nucleus of a comet was observed by the 2 soviet spacecraft VEGA on 6 and 9 March 1986. They were followed by the european spacecraft GIOTTO on 14 march. The numerical images transmitted by the 3 spacecraft have been corrected from instrumental degradations and allowed a unique description of the shape and the movement of Halley's comet nucleus. Thus the contours become clearly apparent. Its volume can be described by an ellipsoid which principal axis are equal to 16, 8.2 and 7.5 km: it has an oblate rugby balloon shape. Its rational movement is complicated, but we are able to analyse it with the identification of details seen on the surface at three different moments. The nucleus is greater than expected in the past. It is made of a mixture of water ice and dust, and is covered by a dust dark mantle: it is one of the darkest objects in the solar system. This mantle is not uniform, as shown by the images sent by the 3 spacecraft. They display a spectacular distribution of dust jets emitted by very active regions on the nucleus surface [fr

  19. The origin of Halley-type comets: probing the inner Oort cloud

    Science.gov (United States)

    Levison, H.; Dones, L.; Duncan, M.

    2000-10-01

    We have integrated the orbits of 27,700 test particles initially entering the planetary system from the Oort cloud in order to study the origin of Halley-type comets (HTCs). We included the gravitational influence of the Sun, giant planets, passing stars, and galactic tides. We find that an isotropically distributed Oort cloud does not reproduce the observed orbital element distribution of the HTCs. In order to match the observations, the initial inclination distribution of the progenitors of the HTCs must be similar to the observed HTC inclination distribution. We can match the observations with an Oort cloud that consists of an isotropic outer cloud and a disk-like massive inner cloud. These idealized two-component models have inner disks with median inclinations that range from 10 to 50o. This analysis represents the first link between observations and the structure of the inner Oort cloud. HFL and LD gratefully acknowledges grants provided by the NASA Origins of Solar Systems and Planetary Geology and Geophysics Programs. MJD is grateful for the continuing financial support of the Natural Science and Engineering Research Council of Canada and for financial support for work done inthe U.S.from NASA Planetary Geology and Geophysics Programs.

  20. Marketing Management: The Analysis of Breitling Watches in The Luxury Watch Market%Marketing Management:The Analysis of Breitling Watches in The Luxury Watch Market

    Institute of Scientific and Technical Information of China (English)

    王丽闻

    2017-01-01

    This essay will critically review the general situation and positioning of Breitling timepieces in the global market;It will begin with the background of Breitling to facilitate an understanding of the object. Initially, the target marketing of Breitling will be discussed by a number of assumptions in view of online researches. Subsequently, four aspects of the marketing mix will be analysed by comparing with its competitors to realise the latest conception and positioning of Breitling. Consequently, the elements that drive the purchase behaviour will be presented to reveal Breitling's competitive advantages in the luxury watch market.

  1. Mental Health and Teens: Watch for Danger Signs

    Science.gov (United States)

    ... Gradeschool Teen Dating & Sex Fitness Nutrition Driving Safety School Substance Use Young Adult Healthy Children > Ages & Stages > Teen > Mental Health and Teens: Watch for Danger Signs Ages & Stages ...

  2. The WATCH All-Sky Monitor for the Granat Project

    DEFF Research Database (Denmark)

    Brandt, Søren; Lund, Niels; Rao, A. R.

    1990-01-01

    The Watch X-ray all-sky monitor, which is designed to localize strong X-ray sources and follow their development, is examined, focusing on the addition of four Watch units to the Granat satellite project. The components of the Watch instrument are described and the capabilities and potential...... scientific returns of the Granat project are discussed. The applications of the Watch monitor are given, including the study of time variations of known sources and the detection and localization of new, transient sources....

  3. Amateur Sources Breaking the News, Meta Sources Authorizing the News of Gaddafi's Death

    DEFF Research Database (Denmark)

    Mortensen, Mette; Kristensen, Nete Nørgaard

    2013-01-01

    access to information from war zones, but are instead brought in to comment on, validate and grant legitimacy to amateur sources as a form of explicit source criticism that we would like to term metasourcing. This new pattern of information gathering and sourcing within war reporting manifests itself......This article takes its point of departure in the thesis that today’s global, digitalized and conver- gent media environment has promoted new patterns of information gathering and dissemina- tion within journalism, and war journalism in particular, which involve changing forms and various degrees...... of interplay between elite and non-elite sources as well as media professionals and amateur sources. On account of their proximity to unfolding events, amateur sources often break the news by means of raw and fragmented bits of visual and verbal information. Elite sources rarely possess the same exclusive...

  4. The influence of surface on the running velocities of elite and amateur orienteer athletes

    DEFF Research Database (Denmark)

    Hébert-Losier, K; Jensen, Kurt; Mourot, L

    2014-01-01

    We compared the reduction in running velocities from road to off-road terrain in eight elite and eight amateur male orienteer athletes to investigate whether this factor differentiates elite from amateur athletes. On two separate days, each subject ran three 2-km time trials and three 20-m sprints...... "all-out" on a road, on a path, and in a forest. On a third day, the running economy and maximal aerobic power of individuals were assessed on a treadmill. The elite orienteer ran faster than the amateur on all three surfaces and at both distances, in line with their better running economy and aerobic....... Of course, cognitive, mental, and physical attributes other than the ability to run on different surfaces are required for excellence in orienteering (e.g., a high aerobic power). However, we suggest that athlete-specific assessment of running performance on various surfaces and distances might assist...

  5. Pro-Amateur Observatories as a Significant Resource for Professional Astronomers - Taurus Hill Observatory

    Science.gov (United States)

    Haukka, H.; Hentunen, V.-P.; Nissinen, M.; Salmi, T.; Aartolahti, H.; Juutilainen, J.; Vilokki, H.

    2013-09-01

    Taurus Hill Observatory (THO), observatory code A95, is an amateur observatory located in Varkaus, Finland. The observatory is maintained by the local astronomical association of Warkauden Kassiopeia [8]. THO research team has observed and measured various stellar objects and phenomena. Observatory has mainly focuse d on asteroid [1] and exoplanet light curve measurements, observing the gamma rays burst, supernova discoveries and monitoring [2]. We also do long term monitoring projects [3]. THO research team has presented its research work on previous EPSC meetings ([4], [5],[6], [7]) and got very supportive reactions from the European planetary science community. The results and publications that pro-amateur based observatories, like THO, have contributed, clearly demonstrates that pro-amateurs area significant resource for the professional astronomers now and even more in the future.

  6. Challenges to promoting health for amateur athletes through anti-doping policy.

    Science.gov (United States)

    Henning, April

    2017-01-01

    Anti-doping regulations are intended, at least in part, to promote the health of athletes. While most anti-doping efforts target elite and professional competitors, there have been recent moves by sport governing bodies to expand anti-doping testing to include amateur athletes. Drawing on previous critiques of anti-doping policies and illustrating cases, this article outlines five of the challenges to health promotion of applying the current detect and ban model to the amateur level of sport. I argue that the current approach is not effective and, in some ways, may undermine the goal of health promotion at the amateur level. In order to address these challenges, I propose alternative, health-centred strategies that focus on athlete empowerment and choice through critical awareness of a variety of substances, associated risks and rewards, and the role of expertise in decision-making.

  7. Frequency of pain and eating disorders among professional and amateur dancers

    Directory of Open Access Journals (Sweden)

    Maria Angélica Kurpel Diogo

    Full Text Available ABSTRACT CONTEXT AND OBJECTIVE: The pursuit of perfection can cause anxiety and lead dancers to exceed their physical limits. The aim here was to evaluate the prevalence of pain symptoms and eating disorders among professional and amateur dancers. DESIGN AND SETTING: Observational cross-sectional study; Curitiba, PR, Brazil. METHODS: Data on 150 professional and non-professional practitioners of ballet, jazz and street dance were collected through specific questionnaires: Brief Pain Inventory-Short Form (BPI-SF, Eating Attitudes Test-26 (EAT-26, Bulimic Investigatory Test Edinburgh (BITE and State-Trait Anxiety Inventory-T-6 (STAI-T-6. RESULTS: Pain was observed in 58.6% of the sample, equally between professionals and amateurs (P = 0.19. Ballet dancers had more lower-limb pain than the other groups (P = 0.05. EAT-26 showed a tendency towards more eating disorders among the amateurs (P = 0.06. Higher risk of eating disorders was found among ballet dancers (P = 0.004 and jazz practitioners (P = 0.02 than among street dancers. Amateurs had more symptoms on the BITE scale (P < 0.0001, more pain (P = 0.002 and higher anxiety (P < 0.0001. Eating disorders were more common among females (P = 0.01 and singles (P = 0.02. Professionals were more satisfied with their own body image than amateurs (P < 0.001. CONCLUSIONS: Pain symptoms were found in almost half of the sample, equally among professionals and amateurs as well as between the three dance styles. Female and singles had more eating disorders. Those with eating disorders had higher levels of pain and anxiety.

  8. Professional Soccer Player Neuromuscular Responses and Perceptions to Acute Whole Body Vibration Differ from Amateur Counterparts

    Directory of Open Access Journals (Sweden)

    Ross Cloak, Andrew Lane, Matthew Wyon

    2016-03-01

    Full Text Available Acute whole body vibration (WBV is an increasingly popular training technique amongst athletes immediately prior to performance and during scheduled breaks in play. Despite its growing popularity, evidence to demonstrate its effectiveness on acute neuromuscular responses is unclear, and suggestions that athlete ability impacts effectiveness warrant further investigation. The purpose of this study was to compare the neuromuscular effects of acute WBV and perceptions of whether WBV is an effective intervention between amateur and professional soccer players. Participants were 44 male soccer players (22 professional and 22 amateur; age: 23.1 ± 3.7 years, body mass: 75.6 ± 8.8 kg and height: 1.77 ± 0.05 m. Participants in each group were randomly assigned to either an intervention of 3 x 60 s of WBV at 40 Hz (8mm peak-to-peak displacement or control group. Peak knee isometric force, muscle activation and post activation potentiation (PAP of the knee extensors along with self-report questionnaire of the perceived benefits of using the intervention were collected. A three-way ANOVA with repeated measures revealed professional players demonstrated a significant 10.6% increase (p < 0.01, Partial Eta2 = 0.22 in peak knee isometric force following acute WBV with no significant differences among amateur players. A significant difference (p < 0.01, Partial Eta2 = 0.16 in PAP amongst professional players following acute WBVT was also reported. No significant differences amongst amateur players were reported across measurements. Results also indicated professional players reported significantly stronger positive beliefs in the effectiveness of the WBV intervention (p < 0.01, Partial Eta2 = 0.27 compared to amateur players. Acute WBV elicited a positive neuromuscular response amongst professional players identified by PAP and improvements in knee isometric peak force as well as perceived benefits of the intervention, benefits not found among amateur players.

  9. Dust-acoustic shock waves in a charge varying electronegative magnetized dusty plasma with nonthermal ions: Application to Halley Comet plasma

    Energy Technology Data Exchange (ETDEWEB)

    Tribeche, Mouloud; Bacha, Mustapha [Plasma Physics Group (PPG), Theoretical Physics Laboratory (TPL), Faculty of Physics, University of Bab-Ezzouar, USTHB, B. P. 32, El Alia, Algiers 16111 (Algeria)

    2013-10-15

    Weak dust-acoustic waves (DAWs) are addressed in a nonthermal charge varying electronegative magnetized dusty plasmas with application to the Halley Comet. A weakly nonlinear analysis is carried out to derive a Korteweg-de Vries-Burger equation. The positive ion nonthermality, the obliqueness, and magnitude of the magnetic field are found to modify the dispersive and dissipative properties of the DA shock structure. Our results may aid to explain and interpret the nonlinear oscillations that may occur in the Halley Comet Plasma.

  10. Comparison of Joint Loading in Badminton Lunging between Professional and Amateur Badminton Players

    OpenAIRE

    Fu, Lin; Ren, Feng; Baker, Julien S.

    2017-01-01

    The knee and ankle are the two most injured joints associated with the sport of badminton. This study evaluates biomechanical factors between professional and amateur badminton players using an injury mechanism model. The aim of this study was to investigate the kinematic motion and kinetic loading differences of the right knee and ankle while performing a maximal right lunge. Amateur players exhibited greater ankle range of motion (p < 0.05, r = 0.89) and inversion joint moment (p < 0.05, r ...

  11. Comparison of Joint Loading in Badminton Lunging between Professional and Amateur Badminton Players

    Science.gov (United States)

    Fu, Lin

    2017-01-01

    The knee and ankle are the two most injured joints associated with the sport of badminton. This study evaluates biomechanical factors between professional and amateur badminton players using an injury mechanism model. The aim of this study was to investigate the kinematic motion and kinetic loading differences of the right knee and ankle while performing a maximal right lunge. Amateur players exhibited greater ankle range of motion (p badminton players presented a greater knee joint moment in the sagittal (p badminton players should account for these findings to reduce potential injury to the ankle and knee. PMID:28694684

  12. "Leaders," "Followers" and Collective Group Support in Learning "Art Music" in an Amateur Composer-Oriented Bach Choir

    Science.gov (United States)

    Einarsdottir, Sigrun Lilja

    2014-01-01

    The purpose of this paper is to demonstrate how amateur choral singers experience collective group support as a method of learning "art music" choral work. Findings are derived from a grounded-theory based, socio-musical case study of an amateur "art music" Bach Choir, in the process of rehearsing and performing the Mass in B…

  13. 76 FR 7847 - Glenn A. Baxter, Application To Renew License for Amateur Radio Service Station K1MAN

    Science.gov (United States)

    2011-02-11

    ... Renew License for Amateur Radio Service Station K1MAN AGENCY: Federal Communications Commission. ACTION... Service Station K1MAN filed by Glenn A. Baxter should be granted. DATES: The document was mailed to the... Amateur Radio Station K1MAN should be granted. As discussed below, the record before us indicates that...

  14. The Nurse Watch: Design and Evaluation of a Smart Watch Application with Vital Sign Monitoring and Checklist Reminders.

    Science.gov (United States)

    Bang, Magnus; Solnevik, Katarina; Eriksson, Henrik

    Computerized wearable devices such as smart watches will become valuable nursing tools. This paper describes a smart-watch system developed in close collaboration with a team of nurses working in a Swedish ICU. The smart-watch system provides real-time vital-sign monitoring, threshold alarms, and to-do reminders. Additionally, a Kanban board, visualized on a multitouch screen provides an overview of completed and upcoming tasks. We describe an approach to implement automated checklist systems with smart watches and discuss aspects of importance when implementing such memory and attention support. The paper is finalized with an in-development formative evaluation of the system.

  15. The analysis of the neutral gas measurements near comet P/Halley based on observations by VEGA-1

    International Nuclear Information System (INIS)

    Gringauz, K.I.; Verigin, M.I.; Remizov, A.P.; Oraevskij, A.A.; Szegoe, K.; Varga, A.

    1989-04-01

    The in-situ measurements of secondary electrons and sputtered ions caused by impacts of neutral particles on metallic surfaces of the Ram Faraday Cup and Plasma Impact Detector sensors in PLAZMAG-1 instrument aboard VEGA 1,2 spacecraft are used to estimate neutral particle density distribution (n n ) around comet P/Halley up to distances of approximately 3x10 σ km. Asymmetries in n n distributions along inbound and outbound legs of spacecraft trajectory are attributed to solar radiation pressure. A model calculation, taking into account solar radiation pressure, leads to 'tear drop' shaped distribution of neutral particles around the cometary nucleus. (author) 46 refs.; 11 figs

  16. Radio-Observaciones del OH EN la Coma del Cometa Halley Desde EL Hemisferio Sur

    Science.gov (United States)

    Silva, A. M.; Bajaja, E.; Morras, R.; Cersosimo, J. C.; Martin, M. C.; Arnal, E. M.; Poppel, W. G. L.; Colomb, F. R.; Mazzaro, J.; Olalde, J. C.; Boriakoff, V.; Mirabel, I. F.

    1987-05-01

    Se utilizó una antena de 30 metros del Instituto Argentino de Radioastronomía para observaciones diarias Cf ebrero a abril de 1986) de la transición en 1667 MHz ( λ = 18 cm) del OH en la coma del cometa Halley. De las observaciones realizadas se concluye: 1) El número promedio de moléculas de OH en la coma durante 37 días de observación fue de (8.9±3.5)x1034 moléculas, lo que implica una tasa de producción promedio de OH de 1.8x1029 moléculas seg-1 y consecuentemente una pérdida de masa promedio de 17±6 toneladas seg-1 . Este valor está de acuerdo con las mediciones realizadas por las sondas Vega y Giotto. 2) El monitoreo desde el lAR revela la existencia de variaciones bruscas en los flujos de absorción del OH. Estas variaciones son consistentes con los modelos que representan la producción gaseosa a partir de ejecciones y/o desprendimientos discretos de materia congelada del núcleo. 3) Las variaciones en la densidad de flujo son consistentes con las estimaciones de los tiem- pos de vida medios del H2O y del OH en presencia del campo de radiación solar. 4) Se encuentra una correlación entre la intensidad del flujo absorbido y anisotropías en Ia dinamica de la coma.

  17. Backyard Telescopes Watch an Expanding Binary

    Science.gov (United States)

    Kohler, Susanna

    2018-01-01

    What can you do with a team of people armed with backyard telescopes and a decade of patience? Test how binary star systems evolve under Einsteins general theory of relativity!Unusual VariablesCataclysmic variables irregularly brightening binary stars consisting of an accreting white dwarf and a donor star are a favorite target among amateur astronomers: theyre detectable even with small telescopes, and theres a lot we can learn about stellar astrophysics by observing them, if were patient.Diagram of a cataclysmic variable. In an AM CVn, the donor is most likely a white dwarf as well, or a low-mass helium star. [Philip D. Hall]Among the large family of cataclysmic variables is one unusual type: the extremely short-period AM Canum Venaticorum (AM CVn) stars. These rare variables (only 40 are known) are unique in having spectra dominated by helium, suggesting that they contain little or no hydrogen. Because of this, scientists have speculated that the donor stars in these systems are either white dwarfs themselves or very low-mass helium stars.Why study AM CVn stars? Because their unusual configuration allows us to predict the behavior of their orbital evolution. According to the general theory of relativity, the two components of an AM CVn will spiral closer and closer as the system loses angular momentum to gravitational-wave emission. Eventually they will get so close that the low-mass companion star overflows its Roche lobe, beginning mass transfer to the white dwarf. At this point, the orbital evolution will reverse and the binary orbit will expand, increasing its period.CBA member Enrique de Miguel, lead author on the study, with his backyard telescope in Huelva, Spain. [Enrique de Miguel]Backyard Astronomy Hard at WorkMeasuring the evolution of an AM CVns orbital period is the best way to confirm this model, but this is no simple task! To observe this evolution, we first need a system with a period that can be very precisely measured best achieved with an

  18. Gender Roles and Night-Sky Watching among College Students

    Science.gov (United States)

    Kelly, William E.; McGee, Catherine M.

    2012-01-01

    The present study investigated the relationship between gender roles and night-sky watching in a sample of college students (N=161). The Bem Sex-Role Inventory (BSRI) and the Noctcaelador Inventory (NI) were used to investigate the differences between gender role groups for night-sky watching. The results supported the hypothesis that androgynous…

  19. Estimating the impact of whaling on global whale watching

    NARCIS (Netherlands)

    H-I. Kuo (Hsiao-I); C-C. Chen (Chi-Chung); M.J. McAleer (Michael)

    2009-01-01

    textabstractAfter the commercial whaling moratorium was enacted in 1986, whale watching became one of the fastest growing tourism industries worldwide. As whaling was regarded as an activity incompatible with whale watching, the possible resumption of commercial whaling caused an urgent need to

  20. The WATCH solar X-ray burst catalogue

    DEFF Research Database (Denmark)

    Crosby, N.; Lund, Niels; Vilmer, N.

    1998-01-01

    The WATCH experiment aboard the GRANAT satellite provides observations of the Sun in the deka-keV range covering the years 1990 through mid-1992. An introduction to the experiment is given followed by an explanation of how the WATCH solar burst catalogue was created. The different parameters list...

  1. Functional electronic screen printing – electroluminescent smart fabric watch

    OpenAIRE

    de Vos, Marc; Torah, Russel; Beeby, Steve; Tudor, John

    2013-01-01

    Motivation for screen printed smart fabrics.Introduce functional electronic screen printing on fabrics.Printed smart fabric watch design.Printing process for electroluminescent watch.Demonstration video.Conclusions and further work.Examples of other screen printed smart fabrics.

  2. Implementacija aplikacije Smart Watch Workout za naprave iOS s pametno uro Apple Watch

    OpenAIRE

    Skledar, Dejan

    2016-01-01

    V diplomskem delu opišemo in predstavimo naprave ter operacijske sisteme, na katerih teče naša aplikacija. Le-ta je namenjena mobilnim navdušencem, ki jim pomaga do vsakodnevne aktivnosti. Prav tako opišemo potek, razvoj in cilje končnega izdelka na napravi iPhone kot tudi na napravi Apple Watch. Podatki, ki so pomembni za pravilno delovanje aplikacij, se shranjujejo v lokalno podatkovno bazo.

  3. Out of the SHADOW: watch parts in the spotlight -- laser beam microwelding of delicate watch components

    Science.gov (United States)

    Kramer, Thorsten; Olowinsky, Alexander M.

    2003-07-01

    Conventional joining techniques like press fitting or crimping require the application of mechanical forces to the parts which, in combination with the tolerances of both parts to be joined, lead to imprecision and poor tensile strength. In contrast, laser beam micro welding provides consistent joining and high flexibility and it acts as an alternative as long as press fitting, crimping, screwing or gluing are not capable of batch production. Different parts and even different metals can be joined in a non-contact process at feed rates of up to 60 m/min and with weld seam lengths from 0.6 mm to 15.7 mm. Due to the low energy input, typically 1 J to 6 J, a weld width as small as 50 μm and a weld depth as small as 20 μm have been attained. This results in low distortion of the joined watch components. Since the first applications of laser beam micro welding of watch components showed promising results, the process has further been enhanced using the SHADOW technique. Aspects of the technique such as tensile strength, geometry and precision of the weld seam as well as the acceptance amongst the -mostly conservative- watch manufacturers have been improved.

  4. Psychometrics of the Emotional Intelligence Scale in Elite, Amateur, and Non-Athletes

    Science.gov (United States)

    Vaughan, Robert; Laborde, Sylvain

    2018-01-01

    The purpose of this study was to assess the psychometrics properties of the Emotional Intelligence Scale and assess the measurement invariance across elite (n = 367), amateur (n = 629), and non-athletes (n = 550). In total, 1,546 participants from various sports completed the emotional intelligence scale. Several competing models were compared…

  5. Dropping in and Dropping Out: Experiences of Sustaining and Ceasing Amateur Participation in Classical Music

    Science.gov (United States)

    Pitts, Stephanie E.; Robinson, Katharine

    2016-01-01

    The benefits of lifelong musical participation have been repeatedly demonstrated through research and anecdote, and yet the challenging question of why more people are not engaged in these activities is rarely addressed. This project used interviews with eighteen current and past amateur ensemble members to explore themes of social acceptance,…

  6. Service Quality and Satisfaction Perspectives at the 2011 International Amateur Athletic Federation (IAAF) World Championships

    Science.gov (United States)

    Kim, Min Kil; Kim, Suk-Kyu; Lee, Donghun; Judge, Lawrence W.; Huang, Haiyan

    2013-01-01

    The purpose of this exploratory study was to identify and analyze the factors that contribute to perceived service quality, user satisfaction, and behavioral intention in covering megasporting events at the Main Media Center for the International Amateur Athletic Federation (IAAF) Track and Field World Championships. The data were collected…

  7. Soccer injuries and recovery in dutch male amateur soccer players: Results of a prospective cohort study

    NARCIS (Netherlands)

    Beijsterveldt, A.M. van; Steffen, K.; Stubbe, J.H.; Frederiks, J.E.; Port, I.G.L. van de; Backx, F.J.G.

    2014-01-01

    OBJECTIVE:: To describe characteristics of outdoor soccer injury and recovery among Dutch soccer players. DESIGN:: Prospective cohort study. SETTING:: The 2009-2010 competitive season (33 weeks). PARTICIPANTS:: Four hundred fifty-six Dutch male soccer players of 23 amateur teams. MAIN OUTCOME

  8. The role of amateurs in the growth of bat conservation and research ...

    African Journals Online (AJOL)

    eared free-tailed bat (Otomops marliensseni); this species and one other, the short-eared trident bat, CJoeotis ... enforcing the Act. From some 23 amateur bat groups in 1984, ... listed as 'endangered mammals' in KwaZulu·Natal (Schedule.

  9. User Generated Diversity - Some reflections on how to improve the quality of amateur productions

    NARCIS (Netherlands)

    Helberger, N.; Leurdijk, A.G.D.; Munck, S.G.E. de

    2010-01-01

    The potential of user created content to make a meaningful contribution to media diversity is subject to debates. Central to these debates is the argument of the quality of amateur productions. This article will take a close look at this argument, and make some suggestions on how to improve the

  10. The Role of Choral Singing in the Lives of Amateur Choral Singers in Iceland

    Science.gov (United States)

    Einarsdottir, Sigrun Lilja; Gudmundsdottir, Helga Rut

    2016-01-01

    The purpose of this study was to investigate what motivates people to sing in choirs as a leisure activity. Subjects were retrieved from members of 10 amateur choirs of various types in Iceland through a paper-based survey. Results indicated that participants gain both personal and social benefits from singing in a choir. Findings revealed…

  11. Eyewitnesses of History: Italian Amateur Cinema as Cultural Heritage and Source for Audiovisual and Media Production

    NARCIS (Netherlands)

    Simoni, Paolo

    2015-01-01

    abstractThe role of amateur cinema as archival material in Italian media productions has only recently been discovered. Italy, as opposed to other European countries, lacked a local, regional and national policy for the collection and preservation of private audiovisual documents, which led, as a

  12. Remote observatories for amateur astronomers using high-powered telescopes from home

    CERN Document Server

    Hubbell, Gerald R; Billard, Linda M

    2015-01-01

    Amateur astronomers who want to enhance their capabilities to contribute to science need look no farther than this guide to using remote observatories.  The contributors cover how to build your own remote observatory as well as the existing infrastructure of commercial networks of remote observatories that are available to the amateur. They provide specific advice on which programs to use based on your project objectives and offer practical project suggestions. Remotely controlled observatories have many advantages—the most obvious that the observer does not have to be physically present to carry out observations. Such an observatory can also be used more fully because its time can be scheduled and usefully shared among several astronomers working on different observing projects. More and more professional-level observatories are open to use by amateurs in this way via the Internet, and more advanced amateur astronomers can even build their own remote observatories for sharing among members of a society ...

  13. User generated diversity: some reflections on how to improve the quality of amateur productions

    NARCIS (Netherlands)

    Helberger, N.; Leurdijk, A.; de Munck, S.

    2010-01-01

    The potential of user created content to make a meaningful contribution to media diversity is subject to debates. Central to these debates is the argument of the quality of amateur productions. This article will take a close look at this argument, and make some suggestions on how to improve the

  14. Hamstring-and-lower-back flexibility in male amateur soccer players

    NARCIS (Netherlands)

    Horst, Nick Van Der; Priesterbach, Annique; Backx, Frank; Smits, Dirk-Wouter

    2017-01-01

    Objective: This study investigated the hamstring-and-lower-back flexibility (HLBF) of male adult amateur soccer players, using the sit-and-reach test (SRT), with a view to obtaining population-based reference values and to determining whether SRT scores are associated with player characteristics.

  15. Resolution of low-velocity control in golf putting differentiates professionals from amateurs.

    Science.gov (United States)

    Hasegawa, Yumiko; Fujii, Keisuke; Miura, Akito; Yamamoto, Yuji

    2017-07-01

    It is difficult for humans to apply small amounts of force precisely during motor control. However, experts who have undergone extended training are thought to be able to control low-velocity movement with precision. We investigated the resolution of motor control in golf putting. A total of 10 professional and 10 high-level amateur golfers participated. Putting distances were 0.6-3.3 m, in increments of 0.3 m. We measured the impact velocity and the club-face angle at impact, and the acceleration profile of the downswing. The professionals showed significantly smaller coefficients of variation with respect to impact velocity and smaller root mean square errors in relation to acceleration profiles than did the amateurs. To examine the resolution of motor control for impact velocity, we investigated intra-participant differences in the impact velocity of the club head at two adjacent distances. We found that professionals had higher velocity precision when putting small distance intervals than did amateurs. That is, professionals had higher resolution of low-velocity control than did high-level amateurs. Our results suggest that outstanding performance at a task involves the ability to recognise small distinctions and to produce appropriate movements.

  16. A cross-sectional study of 2550 amateur cyclists shows lack of ...

    African Journals Online (AJOL)

    Kathryn van Boom

    overwhelming industry presence and advertising appeal regarding ... Methods: Amateur cyclists, of all age and sex groups, were requested ... Results: Responses were received from 2 550 out of 30 640 race entrants ..... gaining weight and GIT side effects. ... available, consumers are expected to be more aware, educated.

  17. An evidence-driven approach to scrum law modifications in amateur rugby played in South Africa

    NARCIS (Netherlands)

    Hendricks, S.; Lambert, M.I.; Brown, J.; Readhead, C.; Viljoen, W.

    2014-01-01

    Background In 2012, the South African Rugby Union (SARU) approved a new set of scrum laws for amateur rugby played in the country, to be implemented at the start of the 2013 rugby season. These law changes were primarily based on the relatively high proportion of scrum-related catastrophic injury

  18. New eyes on the sun a guide to satellite images and amateur observation

    CERN Document Server

    Wilkinson, John

    2012-01-01

    Information collected by satellites recently sent by the USA, the European Space Agency, Japan, Germany, the United Kingdom, and Russia to monitor the Sun has changed our knowledge and understanding of the Sun, particularly its effect on Earth. This book presents these findings in a way that will be welcomed by amateur astronomers, students, educators and anyone interested in the Sun. Enhanced by many colour photographs, the book combines newly acquired scientific understanding with detailed descriptions of features visible on the Sun’s surface and in its atmosphere. In the past, observing the Sun has been left to academics with specialised instruments, since solar observation has been unsafe because of the risk of eye damage.  This book explains how amateur astronomers can safely observe the various solar phenomena using special hydrogen-alpha telescopes that are not too expensive. Amateurs can now make a positive contribution to science by monitoring the Sun as professionals do.  Amateurs can also acces...

  19. Impossible family portraits : Users, new media technologies and the writing of amateur media history

    NARCIS (Netherlands)

    Aasman, Susanna

    With the shift from analog to digital the field of amateur media widened as the technologies of image production, distribution and screening altered considerably. The many transformations of home moviemaking chart it as something that used to need a film camera and film, a detailed development

  20. Therapeutic Intervention in a Case of Ataxic Dysarthria Associated with a History of Amateur Boxing

    Science.gov (United States)

    McMicken, Betty L.; Ostergren, Jennifer A.; Vento-Wilson, Margaret

    2011-01-01

    The goals of this study were to (a) describe the presenting features of ataxic dysarthria present in a participant with a long history of amateur boxing, (b) describe a novel application of behavioral principles in the treatment of this participant, and (c) discuss implications in the treatment of ataxic dysarthria secondary to boxing. The…

  1. A prospective cohort study of injury in amateur and professional boxing.

    Science.gov (United States)

    Zazryn, T; Cameron, P; McCrory, P

    2006-08-01

    There is concern over the potential for a high incidence of injury in boxing. This is despite a lack of prospective data evaluating the risk for modern day participants. Updated, reliable data with a focus on potential exposure to injury for both amateur and, especially, professional boxers is required. To determine the epidemiology of injury and exposure of amateur and professional boxers in Victoria, Australia. A prospective cohort study with one year follow up was carried out over 2004-2005. Thirty three amateur and 14 active professional boxers registered with either Boxing Victoria Inc (amateurs) or the Professional Boxing and Combat Sports Board of Victoria (professionals) volunteered. Exposure at training and competition was measured, and any injuries sustained during this participation were recorded. Twenty one injuries were sustained by the cohort during the follow up period. Most were to the head region (71%; 95% confidence interval -3.7 to 89.4), with concussion being the most common (33%). An overall injury rate of 2.0 injuries per 1000 hours of boxing was calculated. The high exposure experienced by the boxers (as a result of considerable training time) indicated that boxing has acute injury rates comparable to, and often lower than, those found in other contact and non-contact sports. Further, acute injuries during training appear to be less common and severe than those sustained in bouts.

  2. From Leisure to Work: Amateur Musicians Taking up Instrumental or Vocal Teaching as a Second Career

    Science.gov (United States)

    Taylor, Angela; Hallam, Susan

    2011-01-01

    This article aims to increase our understanding of how amateur musicians become teachers as a change of career, how they use their musical and life skills in their teaching, and how their teaching impacts on their musical identity. The questionnaire responses of 67 career-change instrumental and vocal teachers showed evidence of their strong…

  3. Spectrophotometry of 25 comets - Post-Halley updates for 17 comets plus new observations for eight additional comets

    International Nuclear Information System (INIS)

    Newburn, R.L. Jr.; Spinrad, H.

    1989-01-01

    The best possible production figures within the current post-Halley framework and available observations are given for H2O, O(1D), CN, C3, C2 and dust in 25 comets. Of these, the three objects with the smallest mixing ratios of all minor species have moderate to little or no dust and appear 'old'. Comets with large amounts of CN are very dusty, and there is a clear correlation of CN with dust, although comets with little or no dust still have some CN. Thus, CN appears to have at least two sources, dust and one or more parent gases. Also, the C2/CN production ratio changes continuously with heliocentric distance in every comet considered, suggesting that C2 production may be a function of coma density as well as parental abundance. Dust production ranges from essentially zero in Comet Sugano-Saigusa-Fujikawa up to 67,000 kg/s for Halley on March 14, 1986. 61 references

  4. An evidence-driven approach to scrum law modifications in amateur rugby played in South Africa.

    Science.gov (United States)

    Hendricks, Sharief; Lambert, Mike I; Brown, James C; Readhead, Clint; Viljoen, Wayne

    2014-07-01

    In 2012, the South African Rugby Union (SARU) approved a new set of scrum laws for amateur rugby played in the country, to be implemented at the start of the 2013 rugby season. These law changes were primarily based on the relatively high proportion of scrum-related catastrophic injury data collected as part of the BokSmart National Rugby Safety Programme (BokSmart) over the preceding 4 years (2008-2011). To describe the scrum-related catastrophic injury data in South Africa over the past 5 years (2008-2012), and to discuss how this evidence justifies the change in the Amateur Scrum Laws to make this aspect of the game safer in South Africa. Catastrophic injury data were collected through BokSmart at amateur and professional levels, during training and matches over 5 years (2008-2012). The scrum phase accounted for 33% (n=20 of 60) of all catastrophic injuries between 2008 and 2012. Eighteen of the 20 scrum injuries (90%) were confirmed as acute spinal cord injuries, with 13 of these being permanent injuries. For the scrum injury mechanisms that were provided (n=19), 'impact on the engagement' was the most frequently reported (n=11 of 19, 58%), followed by 'collapsed scrum' (n=7 of 19, 37%) and 'popping out' (n=1 of 19, 5%). Based on these scrum-related catastrophic injury data, a change in the Amateur Scrum Laws of South African Rugby was justified. The main purpose of these scrum law changes is to reduce the number of scrum-related catastrophic injuries in the country, by minimising the opportunity for impact injury and subsequent scrum collapse in amateur rugby in South Africa, thereby making this aspect of the game of rugby safer. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  5. Amateur Creation and Entrepreneurialism: A Critical Study of Artistic Production in Post-Fordist Structures

    Directory of Open Access Journals (Sweden)

    Yiannis Mylonas

    2012-01-01

    Full Text Available Based on an interview with a hip-hop artist from Eastern Poland, this article critically assesses amateur art pro-duction proliferating throughout the globe today through individuals’ creative usages of new ICTs and new media affordances. The post-Fordist material and ideological context of contemporary social life is the main focus point of the article’s critique. Scarcity, dispossession, and entrepreneurship are the main analytical concepts used to develop a critical analysis and explanation of mainstream realities of amateur artistic production today. Within a context defined by precarious work conditions and prospects, material scarcity, and consumerist aspirations, media and technological potentialities are strategically used by the amateur artist-entrepreneur a as resources where creativity is put to work for potential socio-economic elevation and inclusion in the global industrial artistic scene (in the case of private ICT, b as “free” resources, appropriated for entrepreneurial aspirations (in the case of “free“ digital material circulating online, particularly through peer to peer networks, c as channels for self promotion and networking (in the case of web 2.0 structures. What is often less apparent to the amateur artists, though, concerns the exploitative capacities of corporate Internet to dispossess amateur work and online social relations for the purposes of capital accumulation and reproduction. Unless critiqued, “free culture” -generated by new ICTs and new media- is assimilated by the material and ideological power of late capitalism and is “put to work” for the (reproduction of late capitalism. The article concludes by suggesting the critical challenging of the mainstream artistic identity and the critical use and appropriation of new media/ICT’s potentialities.

  6. JUPOS : Amateur analysis of Jupiter images with specialized measurement software

    Science.gov (United States)

    Jacquesson, M.; Mettig, H.-J.

    2008-09-01

    object Generating drift charts WinJUPOS can display different types of drift charts using selection files, filter criteria are for example: - latitude - object description (dark or bright features, etc) Computing drift values WinJUPOS can compute linear drift rates in longitude (and latitude) as well as metric wind speeds of particular objects. Conclusion The project offers a big motivaton to amateur astronomers to contribute to research in planetology at their modest level. Further information about JUPOS can be found at http://jupos.org or http://jupos.privat.t-online.de/index.htm

  7. Low Carbon Footprint Routes for Bird Watching

    Directory of Open Access Journals (Sweden)

    Wei-Ta Fang

    2015-03-01

    Full Text Available Bird watching is one of many recreational activities popular in ecotourism. Its popularity, therefore, prompts the need for studies on energy conservation. One such environmentally friendly approach toward minimizing bird watching’s ecological impact is ensuring a reduced carbon footprint by using an economic travel itinerary comprising a series of connected routes between tourist attractions that minimizes transit time. This study used a travel-route planning approach using geographic information systems to detect the shortest path, thereby solving the problems associated with time-consuming transport. Based on the results of road network analyses, optimal travel-route planning can be determined. These methods include simulated annealing (SA and genetic algorithms (GA. We applied two algorithms in our simulation research to detect which one is an appropriate algorithm for running carbon-routing algorithms at the regional scale. SA, which is superior to GA, is considered an excellent approach to search for the optimal path to reduce carbon dioxide and high gasoline fees, thereby controlling travel time by using the shortest travel routes.

  8. An analysis of equine round pen training videos posted online: Differences between amateur and professional trainers.

    Directory of Open Access Journals (Sweden)

    Erin Kydd

    Full Text Available Natural Horsemanship is popular among many amateur and professional trainers and as such, has been the subject of recent scientific enquiry. One method commonly adopted by Natural Horsemanship (NH trainers is that of round pen training (RPT. RPT sessions are usually split into a series of bouts; each including two phases: chasing/flight and chasing offset/flight offset. However, NH training styles are heterogeneous. This study investigated online videos of RPT to explore the characteristics of RPT sessions and test for differences in techniques and outcomes between amateurs and professionals (the latter being defined as those with accompanying online materials that promote clinics, merchandise or a service to the public. From more than 300 candidate videos, we selected sample files for individual amateur (n = 24 and professional (n = 21 trainers. Inclusion criteria were: training at liberty in a Round Pen; more than one bout and good quality video. Sessions or portions of sessions were excluded if the trainer attached equipment, such as a lunge line, directly to the horse or the horse was saddled, mounted or ridden. The number of bouts and duration of each chasing and non-chasing phase were recorded, and the duration of each RPT session was calculated. General weighted regression analysis revealed that, when compared with amateurs, professionals showed fewer arm movements per bout (p<0.05. Poisson regression analysis showed that professionals spent more time looking up at their horses, when transitioning between gaits, than amateurs did (p<0.05. The probability of horses following the trainer was not significantly associated with amount of chasing, regardless of category. Given that, according to some practitioners, the following response is a goal of RPT, this result may prompt caution in those inclined to give chase. The horses handled by professionals showed fewer conflict behaviours (e.g. kicking, biting, stomping, head-tossing, defecating

  9. Citizen Science in Planetary Sciences: Intersection of Scientific Research and Amateur Networks

    Science.gov (United States)

    Yanamandra-Fisher, Padma A.

    2014-11-01

    The Pro-Am Collaborative Astronomy (PACA) project evolved from the observational campaign of C/2012 S1 or C/ISON in 2013. Following the success of the professional-amateur astronomer collaboration in scientific research via social media, it is now implemented in other comet observing campaigns. While PACA identifies a consistent collaborative approach to pro-am collaborations, given the volume of data generated for each campaign, new ways of rapid data analysis, mining access and storage are needed. Several interesting results emerged from the synergistic inclusion of both social media and amateur astronomers:(1) the establishment of a network of astronomers and related professionals, that canbe galvanized into action on short notice to support observing campaigns;(2) assist in various science investigations pertinent to the campaign;(3) provide an alert-sounding mechanism should the need arise;(4) immediate outreach and dissemination of results via our media/blogger members;(5) provide a forum for discussions between the imagers and modelers to helpstrategize the observing campaign for maximum benefit.In 2014, two new comet observing campaigns involving pro-am collaborations have been initiated: (1) C/2013 A1 (C/SidingSpring) and (2) 67P/Churyumov-Gerasimenko (CG), target for ESA/Rosetta mission. The evolving need for individual customized observing campaigns has been incorporated into the evolution of PACA portal that currently is focused on comets: from supporting observing campaigns of current comets, legacy data, historical comets; interconnected with social media and a set of shareable documents addressing observational strategies; consistent standards for data; data access, use, and storage, to align with the needs of professional observers. The integration of science, observations by professional and amateur astronomers, and various social media provides a dynamic and evolving collaborative partnership between professional and amateur astronomers. The

  10. 2011 Summer Hypoxia Watch Bottom CTD Station Locations

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The NOAA Hypoxia Watch project provides near-real-time, web-based maps of dissolved oxygen near the sea floor over the Texas-Louisiana continental shelf during a...

  11. 2008 Summer Hypoxia Watch Bottom CTD Station Locations

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The NOAA Hypoxia Watch project provides near-real-time, web-based maps of dissolved oxygen near the sea floor over the Texas-Louisiana continental shelf during a...

  12. Coral Reef Watch, Degree Heating Weeks, 50 km

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NOAA Coral Reef Watch distributes Degree Heating Week products using a combination of the POES AVHRR Global Area Coverage data, and data from a climatological...

  13. 2013 Summer Hypoxia Watch Bottom CTD Station Locations

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The NOAA Hypoxia Watch project provides near-real-time, web-based maps of dissolved oxygen near the sea floor over the Texas-Louisiana continental shelf during a...

  14. Watch Out for Glaucoma | NIH MedlinePlus the Magazine

    Science.gov (United States)

    ... of this page please turn JavaScript on. Feature: Glaucoma Watch Out for Glaucoma Past Issues / Spring 2015 Table of Contents A ... used to check eye pressure for signs of glaucoma. Photo courtesy of NEI Glaucoma is a group ...

  15. 47 CFR 80.310 - Watch required by voluntary vessels.

    Science.gov (United States)

    2010-10-01

    ... Section 80.310 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES STATIONS IN THE MARITIME SERVICES Safety Watch Requirements and Procedures Ship Station Safety...] Distress, Alarm, Urgency and Safety Procedures ...

  16. MedWatch Safety Alerts for Human Medical Products

    Data.gov (United States)

    U.S. Department of Health & Human Services — MedWatch alerts provide timely new safety information on human drugs, medical devices, vaccines and other biologics, dietary supplements, and cosmetics. The alerts...

  17. 2015 Summer Hypoxia Watch Bottom CTD Station Locations

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The NOAA Hypoxia Watch project provides near-real-time, web-based maps of dissolved oxygen near the sea floor over the Texas-Louisiana continental shelf during a...

  18. 2012 Summer Hypoxia Watch Bottom CTD Station Locations

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The NOAA Hypoxia Watch project provides near-real-time, web-based maps of dissolved oxygen near the sea floor over the Texas-Louisiana continental shelf during a...

  19. 2009 Summer Hypoxia Watch Bottom CTD Station Locations

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The NOAA Hypoxia Watch project provides near-real-time, web-based maps of dissolved oxygen near the sea floor over the Texas-Louisiana continental shelf during a...

  20. 2010 Summer Hypoxia Watch Bottom CTD Station Locations

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The NOAA Hypoxia Watch project provides near-real-time, web-based maps of dissolved oxygen near the sea floor over the Texas-Louisiana continental shelf during a...

  1. Trial Watch: Proteasomal inhibitors for anticancer therapy.

    Science.gov (United States)

    Obrist, Florine; Manic, Gwenola; Kroemer, Guido; Vitale, Ilio; Galluzzi, Lorenzo

    2015-01-01

    The so-called "ubiquitin-proteasome system" (UPS) is a multicomponent molecular apparatus that catalyzes the covalent attachment of several copies of the small protein ubiquitin to other proteins that are generally (but not always) destined to proteasomal degradation. This enzymatic cascade is crucial for the maintenance of intracellular protein homeostasis (both in physiological conditions and in the course of adaptive stress responses), and regulates a wide array of signaling pathways. In line with this notion, defects in the UPS have been associated with aging as well as with several pathological conditions including cardiac, neurodegenerative, and neoplastic disorders. As transformed cells often experience a constant state of stress (as a result of the hyperactivation of oncogenic signaling pathways and/or adverse microenvironmental conditions), their survival and proliferation are highly dependent on the integrity of the UPS. This rationale has driven an intense wave of preclinical and clinical investigation culminating in 2003 with the approval of the proteasomal inhibitor bortezomib by the US Food and Drug Administration for use in multiple myeloma patients. Another proteasomal inhibitor, carfilzomib, is now licensed by international regulatory agencies for use in multiple myeloma patients, and the approved indications for bortezomib have been extended to mantle cell lymphoma. This said, the clinical activity of bortezomib and carfilzomib is often limited by off-target effects, innate/acquired resistance, and the absence of validated predictive biomarkers. Moreover, the antineoplastic activity of proteasome inhibitors against solid tumors is poor. In this Trial Watch we discuss the contribution of the UPS to oncogenesis and tumor progression and summarize the design and/or results of recent clinical studies evaluating the therapeutic profile of proteasome inhibitors in cancer patients.

  2. The modelling and assessment of whale-watching impacts

    Science.gov (United States)

    New, Leslie; Hall, Ailsa J.; Harcourt, Robert; Kaufman, Greg; Parsons, E.C.M.; Pearson, Heidi C.; Cosentino, A. Mel; Schick, Robert S

    2015-01-01

    In recent years there has been significant interest in modelling cumulative effects and the population consequences of individual changes in cetacean behaviour and physiology due to disturbance. One potential source of disturbance that has garnered particular interest is whale-watching. Though perceived as ‘green’ or eco-friendly tourism, there is evidence that whale-watching can result in statistically significant and biologically meaningful changes in cetacean behaviour, raising the question whether whale-watching is in fact a long term sustainable activity. However, an assessment of the impacts of whale-watching on cetaceans requires an understanding of the potential behavioural and physiological effects, data to effectively address the question and suitable modelling techniques. Here, we review the current state of knowledge on the viability of long-term whale-watching, as well as logistical limitations and potential opportunities. We conclude that an integrated, coordinated approach will be needed to further understanding of the possible effects of whale-watching on cetaceans.

  3. MHD waves detected by ice at distances > 28 x 106 km from Comet Halley: Cometary or solar wind origin

    International Nuclear Information System (INIS)

    Tsurutani, B.T.; Brinca, A.L.; Smith, E.J.; Thorne, R.M.; Scarf, F.L.; Gosling, J.T.; Ipavich, F.M.

    1986-01-01

    Spectral analyses of the high resolution magnetic field data are employed to determine if there is evidence of cometary heavy ion pickup when ICE was closest to Halley, ∼28 x 10 6 km. No evidence is found for the presence of heavy ion cyclotron waves. However, from this search, two new wave modes are discovered in the solar wind: electromagnetic ion cyclotron waves and drift mirror mode waves. Both modes have scales of 10 to 60 s (1 to 6 T/sub p/) in the spacecraft frame. The possibility of wave generation by cometary hydrogen pickup is explored. Theoretical arguments and further experimental evidence indicates that cometary origin is improbable. The most likely source is plasma instabilities associated with solar wind stream-stream interactions. VLF electrostatic emissions are found to occur in field minima or at gradients of the drift mirror structures. Possible generation mechanisms of drift mirror mode waves, cyclotron waves and electrostatic waves are discussed

  4. The immediate effect of lumbar spine patterns of neuromuscular joint facilitation in young amateur baseball players.

    Science.gov (United States)

    Huo, Ming; Maruyama, Hitoshi; Kaneko, Takasumi; Naito, Daiki; Koiso, Yuta

    2013-12-01

    [Purpose] The aim of the study was to investigate the changes in baseball pitching velocity, the functional reach test (FR) and the simple reaction times (SRT) in young amateur baseball players after lumbar spine patterns of neuromuscular joint facilitation (NJF) treatment. [Subjects] The subjects were 11 young amateur baseball players. An NJF intervention and a proprioceptive neuromuscular facilitation (PNF) intervention were performed. The interventions were performed one after the other with one week between them. The order of the interventions was completely randomized. [Methods] The baseball pitching velocity, the FR and the SRT were evaluated before and after treatment. [Results] In the NJF group, there were significant differences in baseball pitching velocity, FR and SRT after treatment. In the PNF group, there was a significant difference in SRT after treatment. [Conclusion] NJF intervention shortens the SRT, increases the baseball pitching velocity and FR, and may be recommended to improve performance in baseball players.

  5. Short-term kinesthetic training for sensorimotor rhythms: effects in experts and amateurs.

    Science.gov (United States)

    Zapała, Dariusz; Zabielska-Mendyk, Emilia; Cudo, Andrzej; Krzysztofiak, Agnieszka; Augustynowicz, Paweł; Francuz, Piotr

    2015-01-01

    The authors' aim was to examine whether short-term kinesthetic training affects the level of sensorimotor rhythm (SMR) in different frequency band: alpha (8-12 Hz), lower beta (12.5-16 Hz) and beta (16.5-20 Hz) during the execution of a motor imagery task of closing and opening the right and the left hand by experts (jugglers, practicing similar exercises on an everyday basis) and amateurs (individuals not practicing any sports). It was found that the performance of short kinesthetic training increases the power of alpha rhythm when executing imagery tasks only in the group of amateurs. Therefore, kinesthetic training may be successfully used as a method increasing the vividness of motor imagery, for example, in tasks involving the control of brain-computer interfaces based on SMR.

  6. Scientific Astrophotography How Amateurs Can Generate and Use Professional Imaging Data

    CERN Document Server

    Hubbell, Gerald R

    2013-01-01

    Scientific Astrophotography is a work for those amateur astronomers looking for new challenges, once they have mastered visual observing and the basic imaging of various astronomical objects. It is a wonderful reference for scientifically-inclined observers who want to learn the fundamentals of astrophotography with a firm emphasis on the discipline of scientific imaging. This book is a wealth of information and a distillation of ideas presented by a diverse set of sources and based on the most recent techniques, equipment, and data available. It also includes numerous exercises for the reader, to maximize the success and minimize the frustration inherent in the pursuit of this specific craft. Scientific Astrophotography is perfect for any amateur astronomer who wants to go beyond just the process of making beautiful images and actually contribute to the science of astronomy! "...Gerald Hubbell's new book, Scientific Astrophotography, is the perfect companion for anyone dipping their toe into the digital imag...

  7. Galactic archaeology for amateur astronomers: RR Lyrae stars as tracers of the Milky Way formation

    Science.gov (United States)

    Carballo-Bello, Julio A.; Martínez-Delgado, David; Fliri, Jürgen

    2011-06-01

    Cosmological models predict that large galaxies like the Milky Way formed from the accretion of smaller stellar systems. The most spectacular of these merger events are stellar tidal streams, rivers of stars and dark matter that envelop the discs of spiral galaxies. We present a research project for a collaboration with amateur astronomers in the study of the formation process of our Galaxy. The main objective is the search for RR Lyrae variable stars in the known stellar streams (Sagitarius, Monoceros, Orphan, etc) a project that can be carried out using small telescopes. The catalogue of candidate variable stars were selected from SDSS data based in colour criteria and it will be sent to interested amateur astronomers who wish to participate in scientific research in one of the most active and competitive topics in Galactic astronomy.

  8. Planned and reactive agility performance in semiprofessional and amateur basketball players.

    Science.gov (United States)

    Lockie, Robert G; Jeffriess, Matthew D; McGann, Tye S; Callaghan, Samuel J; Schultz, Adrian B

    2014-09-01

    Research indicates that planned and reactive agility are different athletic skills. These skills have not been adequately assessed in male basketball players. To define whether 10-m-sprint performance and planned and reactive agility measured by the Y-shaped agility test can discriminate between semiprofessional and amateur basketball players. Ten semiprofessional and 10 amateur basketball players completed 10-m sprints and planned- and reactive-agility tests. The Y-shaped agility test involved subjects sprinting 5 m through a trigger timing gate, followed by a 45° cut and 5-m sprint to the left or right through a target gate. In the planned condition, subjects knew the cut direction. For reactive trials, subjects visually scanned to find the illuminated gate. A 1-way analysis of variance (P basketball players; planned agility did not. To distinguish between male basketball players of different ability levels, agility tests should include a perceptual and decision-making component.

  9. Amateur Radio on the International Space Station (ARISS) - the First Educational Outreach Program on ISS

    Science.gov (United States)

    Conley, C. L.; Bauer, F. H.; Brown, D.; White, R.

    2002-01-01

    More than 40 missions over five years will be required to assemble the International Space Station in orbit. The astronauts and cosmonauts will work hard on these missions, but they plan to take some time off for educational activities with schools. Amateur Radio on the International Space Station represents the first Educational Outreach program that is flying on ISS. NASA's Division of Education is a major supporter and sponsor of this student outreach activity on the International Space Station. This meets NASA's educational mission objective: "To inspire the next generation of explorers...as only NASA can." As the International Space Station takes its place in the heavens, the amateur radio community is doing its part by helping to enrich the experience of those visiting and living on the station as well as the students on Earth. Through ARISS (Amateur Radio on the International Space Station), students on Earth have a once in a lifetime opportunity--to talk to the crew on-board ISS. Using amateur radio equipment set up in their classroom, students get a first-hand feel of what it is like to live and work in space. Each school gets a 10 minute question and answer interview with the on-orbit crew using a ground station located in their classroom or through a remote ground station. The ARISS opportunity has proven itself as a tremendous educational boon to teachers and students. Through ARISS, students learn about orbit dynamics, Doppler shift, radio communications, and working with the press. Since its first flight in 1983, amateur radio has flown on more than two-dozen space shuttle missions. Dozens of astronauts have used the predecessor program called SAREX (The Space Shuttle Amateur Radio Experiment) to talk to thousands of kids in school and to their families on Earth while they were in orbit. The primary goals of the ARISS program are fourfold: 1) educational outreach through crew contacts with schools, 2) random contacts with the amateur radio public, 3

  10. Amateur Creation and Entrepreneurialism: A Critical Study of Artistic Production in Post-Fordist Structures

    OpenAIRE

    Yiannis Mylonas

    2012-01-01

    Based on an interview with a hip-hop artist from Eastern Poland, this article critically assesses amateur art pro-duction proliferating throughout the globe today through individuals’ creative usages of new ICTs and new media affordances. The post-Fordist material and ideological context of contemporary social life is the main focus point of the article’s critique. Scarcity, dispossession, and entrepreneurship are the main analytical concepts used to develop a critical analysis and explanatio...

  11. Emerging data on the incidence of concussion in football practice at all levels of amateur play.

    Science.gov (United States)

    Guthrie, Robert M

    2015-11-01

    There has been increasing concern, particularly in the US, about potential long-term neurological deterioration syndromes seen in the US football players. Recurrent concussions are a potential area of concern. The authors of this paper have used data bases from three levels of amateur US football to identify the rate and risk of concussion injury in both football games and practice at the youth, high school, and college levels. This information is very important initial data around concussion rates at these levels.

  12. Injuries in youth amateur soccer and rugby players—comparison of incidence and characteristics

    OpenAIRE

    Junge, A; Cheung, K; Edwards, T; Dvorak, J

    2004-01-01

    Objectives: In reviewing the literature on sports injuries, few studies could be found in which exposure related incidences of injury in different types of sport were compared. These studies indicated that ice hockey, handball, basketball, soccer, and rugby are popular team sports with a relatively high risk of injury. The aim of the study was to compare the characteristics and incidence of injuries in male youth amateur soccer and rugby players.

  13. Returning to sport after anterior cruciate ligament reconstruction in amateur sports men: a retrospective study.

    Science.gov (United States)

    Notarnicola, Angela; Maccagnano, Giuseppe; Barletta, Federico; Ascatigno, Leonardo; Astuto, Leopoldo; Panella, Antonio; Tafuri, Silvio; Moretti, Biagio

    2016-01-01

    According to the literature, 95% of professional athletes return to their sport after anterior cruciate ligament (ACL) reconstruction surgery. The main objective of this study was to verify the return to sport after ACL reconstruction in a homogenous group of amateur sportsmen and sportswomen in a series of Italian patients. We designed a retrospective study in which we analyzed the amateur sports patients operated for ACL reconstruction. We verified whether they had returned to sporting activities by comparing the pre- and post-operative Tegner activity scores. We then analyzed the average time to restart the sporting activity and the Lysholm and International Knee Documenting Committee (IKDC) scores. We analyzed 80 subjects: 47.5% restarted a sports activity, on average after eight months, with a significant reduction of their competitive level or physical commitment, as expressed by the Tegner activity score (pre-operative: 6.9; post-operative: 3.9; psport for international case studies and amateur sports is higher than our data. In our population we found the lack of information provided by the medical staff at discharge and follow-up. The assessment at a short-term follow up allowed us to verify that at the end of the post-surgical rehabilitation program the patients were uninformed about the timing and the ability to resume a sporting activity. An efficacious relationship between orthopedic doctor, physiotherapist and a doctor in motorial science may ensure proper treatment the patient after ACL reconstruction. It is important to guarantee the restarting of the sports activity to have a better quality of life in amateur sports. Level of evidence: V.

  14. Towards benchmarking citizen observatories: Features and functioning of online amateur weather networks.

    Science.gov (United States)

    Gharesifard, Mohammad; Wehn, Uta; van der Zaag, Pieter

    2017-05-15

    Crowd-sourced environmental observations are increasingly being considered as having the potential to enhance the spatial and temporal resolution of current data streams from terrestrial and areal sensors. The rapid diffusion of ICTs during the past decades has facilitated the process of data collection and sharing by the general public and has resulted in the formation of various online environmental citizen observatory networks. Online amateur weather networks are a particular example of such ICT-mediated observatories that are rooted in one of the oldest and most widely practiced citizen science activities, namely amateur weather observation. The objective of this paper is to introduce a conceptual framework that enables a systematic review of the features and functioning of these expanding networks. This is done by considering distinct dimensions, namely the geographic scope and types of participants, the network's establishment mechanism, revenue stream(s), existing communication paradigm, efforts required by data sharers, support offered by platform providers, and issues such as data accessibility, availability and quality. An in-depth understanding of these dimensions helps to analyze various dynamics such as interactions between different stakeholders, motivations to run the networks, and their sustainability. This framework is then utilized to perform a critical review of six existing online amateur weather networks based on publicly available data. The main findings of this analysis suggest that: (1) there are several key stakeholders such as emergency services and local authorities that are not (yet) engaged in these networks; (2) the revenue stream(s) of online amateur weather networks is one of the least discussed but arguably most important dimensions that is crucial for the sustainability of these networks; and (3) all of the networks included in this study have one or more explicit modes of bi-directional communication, however, this is limited to

  15. PACA_Rosetta67P: Global Amateur Observing Support for ESA/Rosetta Mission

    Science.gov (United States)

    Yanamandra-Fisher, Padma A.; Alexander, Claudia; Morales, Efrain; Feliciano-Rivera, Christiana

    2015-11-01

    The PACA (Professional - Amateur Collaborative Astronomy) Project is an ecosystem of several social media platforms (Facebook, Pinterest, Twitter, Flickr, Vimeo) that takes advantage of the global and immediate connectivity amongst amateur astronomers worldwide, that can be galvanized to participate in a given observing campaign. The PACA Project has participated in organized campaigns such as Comet Observing Campaign (CIOC_ISON) in 2013 and Comet Siding Spring (CIOC_SidingSpring)in 2014. Currently the PACA Project is supporting ESA/Rosetta mission with ground-based observations of the comet 67P/Churyumov-Gerasimenko (CG) through its perihelion in August 2015 and beyond; providing baseline observations of magnitude and evolution from locations around the globe. Comet 67P/CG will reach its brightest post-perihelion and pass closest to Earth in November 2015. We will present the various benefits of our professional - amateur collaboration: developing and building a core astronomer community; defining an observing campaign from basic information of the comet from its previous apparitions; coordinating with professionals and the mission to acquire observations, albeit low-resolution, but on a long timeline; while addressing the creation of several science products such as the variation of its magnitude over time and the changing morphology. We will present some of our results to date and compare with observations from professionals and previous apparations of the comet. We shall also highlight the challenges faced in building a successful collaborative partnership between the professional and amateur observers and their resolution. With the popularity of mobile platforms and instant connections with peers globally, the multi-faceted social universe has become a vital part of engagement of multiple communities for collaborative scientific partnerships and outreach. We shall also highlight other cometary observing campaigns that The PACA Project has initiated to evolve

  16. Confessions of a 'guilty' couch potato understanding and using context to optimize binge-watching behavior

    NARCIS (Netherlands)

    de Feijter, D.; Khan, J.V.; van Gisbergen, M.

    2016-01-01

    Viewers more frequently watch television content whenever they want, using devices they prefer, which stimulated "Binge-watching" (consecutive viewing of television programs). Although binge-watching and health concerns have been studied before, the context in which binge-watching takes place and

  17. An interrelation of physical working capacity and body component composition indicators of amateur athletes

    Directory of Open Access Journals (Sweden)

    Zoya Gorenko

    2017-09-01

    Full Text Available Purpose: determine the features of the body component composition and the level of physical performance, as well as the structure of the correlation between these indicators in amateur athletes. Material & Methods: in conditions of the test with physical load with stepwise increasing power in the 71-st physically active person, the reaction of the cardio-respiratory system to physical activity. The body component composition was determined by the bioelectrical impedance method. Result: in amateur athletes, the relative VO2max and power ratings are positively correlated with the relative body water content and have a negative relationship with age, body weight, body mass index, fat content. Oxygen pulse with a high degree of probability positively correlated with body weight, body mass index, metabolic rate, fat-free mass, water content and predictable muscle mass in all body segments. Conclusion: Conducted studies indicate a sufficient level of aerobic capacity, overall performance, the efficiency of the cardiac cycle, the functioning of the О2-transport system and skeletal muscles ability to absorb oxygen from the amateur athletes, and excess fat tissue negatively affects physical performance, overall endurance and achieving high sports results in sports on the endurance.

  18. Viewing and imaging the solar system a guide for amateur astronomers

    CERN Document Server

    Clark, Jane

    2015-01-01

    Viewing and Imaging the Solar System: A Guide for Amateur Astronomers is for those who want to develop their ability to observe and image Solar System objects, including the planets and moons, the Sun, and comets and asteroids. They might be beginners, or they may have already owned and used an astronomical telescope for a year or more. Newcomers are almost always wowed by sights such as the rings of Saturn and the moons of Jupiter, but have little idea how to find these objects for themselves (with the obvious exceptions of the Sun and Moon). They also need guidance about what equipment to use, besides a telescope. This book is written by an expert on the Solar System, who has had a lot of experience with outreach programs, which teach others how to make the most of relatively simple and low-cost equipment. That does not mean that this book is not for serious amateurs. On the contrary, it is designed to show amateur astronomers, in a relatively light-hearted—and math-free way—how to become serious.

  19. Differences in motor abilities between dancers in professional and amateur folklore ansambles

    Directory of Open Access Journals (Sweden)

    Kocić Jadranka

    2014-01-01

    Full Text Available Differences in motor abilities between dancers in Serbinan professional folklore ansamble for dance and sing 'Kolo' in Belgrade and amateur folklore ansambles from coulture-arts society 'Vila' and 'Sonja Marinković' from Novi Sad had been tested on sample of 47 members. Motor area was examined by Provincial Governement Institute tests for Sport in Novi sad, and it was received 9 variables: single movement speed, explosivity below extremities (legs, endurance in jumping, absolutely strength backs' flexor muscule, relatively strength backs' flexor muscule, absolutely strength backs' extensor muscule, relatively strength backs' extensor muscule, absolutely strength backs' flexor muscule, relatively strength backs' flexor muscule. Relatively values obtained from absolutely values results using mathemathics. To determine differences between folklore dancers in whole variable system, it was used multivariante analysis variance (MANOVA. It was determined differences between sexes in motor abilities. Data was obtained by statistic packet SPSS 10.0. The aim was to find significant differences in nine mentioned variables between professional and amateur dancers and between sexes. Received results showed that there was not significant differences between professional and amateur dancers. Between sexes it was significant differences in man benefit, except one variable single movement speed. The conclusion is that for better, statisticaly significant results, professional dancers should enlarge contents and expend training intensity.

  20. Research on the achievement motivation levels of the amateur football players

    Directory of Open Access Journals (Sweden)

    Yalçın İlimdar

    2017-01-01

    Full Text Available This study was conducted to determine the achievement motivation levels of the amateur football players based upon the importance of motivation on the athletes’ successes. The research group comprises 243 voluntary amateur football players who actively participated in the competitions during 2016-2017 season in Elazig. In the study, “Sports-Specific Achievement Motivation Scale” that was developed by Willis (1982 and adapted to Turkish by Tiryaki and Godelek (1997 was used. The collected data were analyzed through SPSS 22 programme. The margin of error was accepted as p<0.05. The cronbach alpha value was found as ,78. Consequently; when the subscales of achievement motivation of the amateur soccer players participating in the study were analyzed with some variables, it was found that there was a statistically significant difference between those aged 22-24 years and those aged 25-27 years in approach success. In the team playing year variable, the statistical significance was found between the ones who have 1 year football history in the team and those who are 5 years or more in the approach success. It was observed the approach to achievement motivation increased as the experience of playing for a team increased. As for the year of working with a trainer variable, it was found that there was a statistically significant difference between those who had 1 year past with coach and those who had 2 years past with the motivation to avoid failure.

  1. Astro-imaging projects for amateur astronomers a maker’s guide

    CERN Document Server

    Chung, Jim

    2015-01-01

    This is the must-have guide for all amateur astronomers who double as makers, doers, tinkerers, problem-solvers, and inventors. In a world where an amateur astronomy habit can easily run into the many thousands of dollars, it is still possible for practitioners to get high-quality results and equipment on a budget by utilizing DIY techniques. Surprisingly, it's not that hard to modify existing equipment to get new and improved usability from older or outdated technology, creating an end result that can outshine the pricey higher-end tools. All it takes is some elbow grease, a creative and open mind and the help of Chung's hard-won knowledge on building and modifying telescopes and cameras. With this book, it is possible for readers to improve their craft, making their equipment more user friendly. The tools are at hand, and the advice on how to do it is here. Readers will discover a comprehensive presentation of astronomical projects that any amateur on any budget can replicate – projects that utilize lead...

  2. Determinants of sport-specific postural control strategy and balance performance of amateur rugby players.

    Science.gov (United States)

    Chow, Gary C C; Fong, Shirley S M; Chung, Joanne W Y; Chung, Louisa M Y; Ma, Ada W W; Macfarlane, Duncan J

    2016-11-01

    Postural control strategy and balance performance of rugby players are important yet under-examined issues. This study aimed to examine the differences in balance strategy and balance performance between amateur rugby players and non-players, and to explore training- and injury-related factors that may affect rugby players' balance outcomes. Cross-sectional and exploratory study. Forty-five amateur rugby players and 41 healthy active individuals participated in the study. Balance performance and balance strategies were assessed using the sensory organization test (SOT) of the Smart Equitest computerized dynamic posturography machine. Rugby training history and injury history were solicited from the participants. The SOT strategy scores were 1.99-54.90% lower in the rugby group than in the control group (prugby group than in the control group (prugby training (in years) was independently associated with the SOT condition 6 strategy score, explaining 15.7% of its variance (p=0.006). There was no association between SOT condition 6 strategy/equilibrium scores and injury history among the rugby players (p>0.05). Amateur rugby players demonstrated inferior balance strategy and balance performance compared to their non-training counterparts. Their suboptimal balance strategy was associated with insufficient training experience but not with history of injury. Copyright © 2016 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

  3. Laser treatment of amateur tattoos in Arabs in Kuwait: effectiveness and safety.

    Science.gov (United States)

    Qasem, Kholoud Darwish; Alotaibi, Mohammad Fehan

    2012-04-01

    Laser treatment of amateur tattoos on Fitzpatrick type V skin produces a considerable risk of complications because of the increased incidence of adverse pigmentary changes. The principle of selective photothermolysis predicts that the Q-switched alexandrite laser should be effective in removing tattoo ink with minimal side effects in patients with skin phototype V. To study the effectiveness of the Q-switched alexandrite (755 nm, 50 ns) laser in the treatment of amateur tattoos in Arabs in Kuwait. One hundred patients, each with multiple tattoos, were treated until total clearance. Fluences used ranged from 5 to 7 J/cm(2) with a spot size of 3 mm. Clinical evaluation was performed at baseline and at each follow-up visit until dyspigmentation resolved. Total clearing was observed in all tattoos after an average of six sessions. Both tattoo clearing and post-laser hypopigmentation (29%) and hyperpigmentation (38%) increased with higher fluences. In this prospective study, our findings suggest that the Q-switched alexandrite laser is an effective laser in removing amateur tattoos in patients with skin phototype V, but with a high incidence of pigmentary changes.

  4. The Amateur Radio Club: want to be on the same wavelength?

    CERN Multimedia

    2008-01-01

    We all know about cosmic background radiation, but most of us are probably less familiar with other forms of radio signals at CERN. Here’s an opportunity to discover the CERN Amateur Radio Club (CARC) - callsign F6KAR - which is currently installing a new shortwave antenna. Two-way communications between radio stations are followed up with written confirmations, known as QSL cards, bearing the radio operators’ callsigns. The CARC’s collection contains more than 10 000 cards from all over the world. You don’t have to be NASA and have the most advanced technology to be able to contact space! The amateur radio enthusiasts of the CARC ably demonstrated this in 2005, when they succeeded in communicating with the International Space Station (ISS). The link-up was part of a school project in which thirty children came to CERN to find out about amateur radio and were given the opportunity to ask the astronauts a series of questions. ...

  5. Prevalence of injuries in amateur street runners precuring up to 10 km

    Directory of Open Access Journals (Sweden)

    Elizeth Garcia de Araújo Oliveira

    2018-01-01

    Full Text Available Compared to most exercise and sports activities, street racing is highly versatile as it can be performed in a wide variety of indoor or outdoor environments, on lane or uneven terrain. Physical exercise is usually associated with the well-being of its practitioners. Many people who seek healthier lifestyle habits, such as controlling body weight and improving physical fitness, end up choosing the race as a modality. Among its various manifestations, the race is one of the modalities with many fans, both for ease in its practice, as well as for the health benefits and the low cost. To verify the prevalence of injuries in amateur street runners that cover up to 10 km. A quantitative research was carried out through a semi-structured questionnaire with open questions. Included in this study were amateur athletes who had been racing for at least three months, at least twice a week, and were 18 years of age or older. A total of 70 questionnaires were sent, of which 30 were viable. Eight participants are women and 22 are men. Most respondents do not do pre-employment pre-race work. Among men, 14 had some type of injury or sensation of pain. Among women only 4. Amateur street runners that cover up to 10 km have mostly knee injuries, being present in women the calf, thigh and ankle injuries.

  6. 47 CFR 80.309 - Watch required by the Bridge-to-Bridge Act.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false Watch required by the Bridge-to-Bridge Act. 80... Safety Watches § 80.309 Watch required by the Bridge-to-Bridge Act. In addition to the watch requirement contained in § 80.148, all vessels subject to the Bridge-to-Bridge Act must keep a watch on the designated...

  7. Evidence for the field line reconnection process in the particle and magnetic field measurements obtained during the Giotto-Halley encounter

    Energy Technology Data Exchange (ETDEWEB)

    Kirsch, E.; Daly, P.; Korth, A.; McKenna-Lawlor, S.; Neubauer, F.M.; O' Sullivan, D.; Thompson, A.; Wenzel, K.P.

    1989-04-01

    Measurements of low (E = 250-1000 eV) and high (E = 60 to > 300 keV) energy particles as well as the magnetic field obtained by 3 different instruments (Reme Plasma Analyser, Energetic Particle Analyser, MAGnetometer) during the Giotto-Halley encounter on 13/14 March 1986 are used to study the field line merging process. Spikes of 5-15 min duration in the high energy particle flux which are superimposed on the general intensity time profile are correlated with minima in the low energy particle flux and time periods of oppositely directed magnetic field lines. Strong changes in the pitch angle distribution of energetic ions are observed simultaneously. The observations are considered as evidence for sporadic field line merging processes in the front side of Halley's cometosheath which can accelerate ions and electrons up to E /similar to/ 300 keV.

  8. Watching Subtitled Films Can Help Learning Foreign Languages.

    Science.gov (United States)

    Birulés-Muntané, J; Soto-Faraco, S

    2016-01-01

    Watching English-spoken films with subtitles is becoming increasingly popular throughout the world. One reason for this trend is the assumption that perceptual learning of the sounds of a foreign language, English, will improve perception skills in non-English speakers. Yet, solid proof for this is scarce. In order to test the potential learning effects derived from watching subtitled media, a group of intermediate Spanish students of English as a foreign language watched a 1h-long episode of a TV drama in its original English version, with English, Spanish or no subtitles overlaid. Before and after the viewing, participants took a listening and vocabulary test to evaluate their speech perception and vocabulary acquisition in English, plus a final plot comprehension test. The results of the listening skills tests revealed that after watching the English subtitled version, participants improved these skills significantly more than after watching the Spanish subtitled or no-subtitles versions. The vocabulary test showed no reliable differences between subtitled conditions. Finally, as one could expect, plot comprehension was best under native, Spanish subtitles. These learning effects with just 1 hour exposure might have major implications with longer exposure times.

  9. Television Watching and Telomere Length Among Adults in Southwest China.

    Science.gov (United States)

    Xue, Hong-Mei; Liu, Qian-Qian; Tian, Guo; Quan, Li-Ming; Zhao, Yong; Cheng, Guo

    2017-09-01

    To explore the independent associations of sedentary behavior and physical activity with telomere length among Chinese adults. Data on total time of sedentary behavior, screen-based sedentary behavior (including television watching and computer or phone use), moderate to vigorous physical activity, and dietary intake of 518 adults in Chengdu, Guizhou, and Xiamen in China (54.25% women) aged 20 to 70 years were obtained between 2013 and 2015 through questionnaires. Height, weight, and waist circumference were measured to calculate body mass index and percentage of body fat. Telomere length was measured through Southern blot technique. Television watching was inversely related to adjusted telomere length (-71.75 base pair; SE = 34.40; P  = .04). Furthermore, a similar trend between telomere length and television watching was found in the group aged 20 to 40 years after adjusting for all covariates. Adults aged 20 to 40 years in the highest tertile of daily time spent on watching television had 4.0% shorter telomere length than adults in the lowest tertile (P = .03). Although the association is modest, television watching is inversely related to telomere length among Chinese adults, warranting further investigation in large prospective studies.

  10. Analysis of IPTV Channels Watching Preferences in Bosnia and Herzegovina

    Directory of Open Access Journals (Sweden)

    F. Orucevic

    2011-10-01

    Full Text Available IPTV service is a new service which is today offered from almost every Telecom operator. One of the advantages of IPTV service stemming from its architecture is certainly the fact that it is very easy to measure what TV channels are the ones mostly watched. This papers desribes this measurement and analysis results in one Telecom operator in Bosnia and Herzegovina. They describe what TV channels are mostly watched in different time periods. We developed a simple weighting algorithm to order the channels by watching rate. Based on it we are providing extensive tables. This paper forms an industrial contribution with results important for marketing but also is scientific contribution because it introduces one new method of scoring TV channels based on previous measurements in their audience. We also developed IPTV Statistics model and described results from this research for a new statistics model. This paper is the continuous of previously published contributions from this area.

  11. TideWatch: Fingerprinting the cyclicality of big data workloads

    KAUST Repository

    Williams, Daniel W.

    2014-04-01

    Intrinsic to \\'big data\\' processing workloads (e.g., iterative MapReduce, Pregel, etc.) are cyclical resource utilization patterns that are highly synchronized across different resource types as well as the workers in a cluster. In Infrastructure as a Service settings, cloud providers do not exploit this characteristic to better manage VMs because they view VMs as \\'black boxes.\\' We present TideWatch, a system that automatically identifies cyclicality and similarity in running VMs. TideWatch predicts period lengths of most VMs in Hadoop workloads within 9% of actual iteration boundaries and successfully classifies up to 95% of running VMs as participating in the appropriate Hadoop cluster. Furthermore, we show how TideWatch can be used to improve the timing of VM migrations, reducing both migration time and network impact by over 50% when compared to a random approach. © 2014 IEEE.

  12. Initiating a watch list for Ebola virus antibody escape mutations

    Directory of Open Access Journals (Sweden)

    Craig R. Miller

    2016-02-01

    Full Text Available The 2014 Ebola virus (EBOV outbreak in West Africa is the largest in recorded history and resulted in over 11,000 deaths. It is essential that strategies for treatment and containment be developed to avoid future epidemics of this magnitude. With the development of vaccines and antibody-based therapies using the envelope glycoprotein (GP of the 1976 Mayinga strain, one important strategy is to anticipate how the evolution of EBOV might compromise these efforts. In this study we have initiated a watch list of potential antibody escape mutations of EBOV by modeling interactions between GP and the antibody KZ52. The watch list was generated using molecular modeling to estimate stability changes due to mutation. Every possible mutation of GP was considered and the list was generated from those that are predicted to disrupt GP-KZ52 binding but not to disrupt the ability of GP to fold and to form trimers. The resulting watch list contains 34 mutations (one of which has already been seen in humans at six sites in the GP2 subunit. Should mutations from the watch list appear and spread during an epidemic, it warrants attention as these mutations may reflect an evolutionary response from the virus that could reduce the effectiveness of interventions such as vaccination. However, this watch list is incomplete and emphasizes the need for more experimental structures of EBOV interacting with antibodies in order to expand the watch list to other epitopes. We hope that this work provokes experimental research on evolutionary escape in both Ebola and other viral pathogens.

  13. Initiating a watch list for Ebola virus antibody escape mutations.

    Science.gov (United States)

    Miller, Craig R; Johnson, Erin L; Burke, Aran Z; Martin, Kyle P; Miura, Tanya A; Wichman, Holly A; Brown, Celeste J; Ytreberg, F Marty

    2016-01-01

    The 2014 Ebola virus (EBOV) outbreak in West Africa is the largest in recorded history and resulted in over 11,000 deaths. It is essential that strategies for treatment and containment be developed to avoid future epidemics of this magnitude. With the development of vaccines and antibody-based therapies using the envelope glycoprotein (GP) of the 1976 Mayinga strain, one important strategy is to anticipate how the evolution of EBOV might compromise these efforts. In this study we have initiated a watch list of potential antibody escape mutations of EBOV by modeling interactions between GP and the antibody KZ52. The watch list was generated using molecular modeling to estimate stability changes due to mutation. Every possible mutation of GP was considered and the list was generated from those that are predicted to disrupt GP-KZ52 binding but not to disrupt the ability of GP to fold and to form trimers. The resulting watch list contains 34 mutations (one of which has already been seen in humans) at six sites in the GP2 subunit. Should mutations from the watch list appear and spread during an epidemic, it warrants attention as these mutations may reflect an evolutionary response from the virus that could reduce the effectiveness of interventions such as vaccination. However, this watch list is incomplete and emphasizes the need for more experimental structures of EBOV interacting with antibodies in order to expand the watch list to other epitopes. We hope that this work provokes experimental research on evolutionary escape in both Ebola and other viral pathogens.

  14. Effects of Adolescent Sport Practice on Health Outcomes of Adult Amateur Endurance Cyclists: Adulthood Is Not Too Late to Start.

    Science.gov (United States)

    Munguia-Izquierdo, Diego; Mayolas-Pi, Carmen; Peñarrubia-Lozano, Carlos; Paris-Garcia, Federico; Bueno-Antequera, Javier; Oviedo-Caro, Miguel Angel; Legaz-Arrese, Alejandro

    2017-11-01

    We investigated the effects of adolescent sport practice on the training, performance, and health outcomes of adult amateur endurance cyclists and compared health outcomes of 3 adult groups: amateur endurance cyclists who practiced sports during adolescence, amateur endurance cyclists who did not practice sports during adolescence, and inactive individuals. In 859 (751 men and 108 women) adult cyclists and 718 inactive subjects (307 men and 411 women), we examined adolescent sport practice, current training status, quality of life, quality of sleep, anxiety and depression, and cardiometabolic risk: body mass index, physical activity, physical fitness, adherence to Mediterranean diet, and alcohol and tobacco consumption. Independent of gender, no significant differences in training, performance, or health outcomes were observed between amateur endurance cyclists who practiced sports during adolescence and those who did not. Independent of gender, cyclists reported significantly better health outcomes than inactive individuals in all variables, except depression. Training, performance, and health outcomes did not differ between adult amateur endurance cyclists who practiced sports during adolescence and those who did not, but their health outcomes were significantly improved compared with inactive individuals, except for depression.

  15. Evaluation of the warm-up habits and knowledge levels in amateur athletes

    Directory of Open Access Journals (Sweden)

    Hasan Aykut Aysan

    2011-06-01

    Full Text Available The aim of this study was to evaluate the warm-up habit and level of knowledge in the amateur athletes.Materials and methods: A total of 510 amateur athletes aged between 17 and 30 years with the mean sport age of 6.2±3.4 years were included. There were 360 males (mean age 22.4±2.0 years and 150 females (mean age 21.2±2.1 years. Warm-up habits of athletes were obtained using by the Likert-type survey questionnaire consisting of 20 questions. The reliability coefficient of the survey had been calculated as cronbach alph=0.647, KMO=0.715, Barlett=1968.711 (p<0.05.Results: It was observed that 56.3% of the athletes had sportive success in elite level and 25% of the male athletes and 32% of the female athletes had never injured before. Item of “warm-up has no effect on the performance of the athlete” was rejected with the mean score of 2.70±0.93, item of “warm-up lessens the risk of being injured for the athletes” was accepted by majority (83.9%. Of all athletes, 83.9% of them had been injured more than once. The warm-up habit was found to be performed in 47.8% at pre-training or pre-competition periods, however cool-down habit was found in 17.3% of athletes at the end of activity.Conclusion: There was a common belief that warm-up had a positive effect on the performance of the athletes, reduced the risk of injury, increased the movement angle of joints. But it can be said that habits of the amateurs was not at a sufficient level. J Clin Exp Invest 2011;2(2:181-6

  16. Vaunting the independent amateur: Scientific American and the representation of lay scientists.

    Science.gov (United States)

    Johnston, Sean F

    2018-04-01

    This paper traces how media representations encouraged enthusiasts, youth and skilled volunteers to participate actively in science and technology during the twentieth century. It assesses how distinctive discourses about scientific amateurs positioned them with respect to professionals in shifting political and cultural environments. In particular, the account assesses the seminal role of a periodical, Scientific American magazine, in shaping and championing an enduring vision of autonomous scientific enthusiasms. Between the 1920s and 1970s, editors Albert G. Ingalls and Clair L. Stong shepherded generations of adult 'amateur scientists'. Their columns and books popularized a vision of independent non-professional research that celebrated the frugal ingenuity and skills of inveterate tinkerers. Some of these attributes have found more recent expression in present-day 'maker culture'. The topic consequently is relevant to the historiography of scientific practice, science popularization and science education. Its focus on independent non-professionals highlights political dimensions of agency and autonomy that have often been implicit for such historical (and contemporary) actors. The paper argues that the Scientific American template of adult scientific amateurism contrasted with other representations: those promoted by earlier periodicals and by a science education organization, Science Service, and by the national demands for recruiting scientific labour during and after the Second World War. The evidence indicates that advocates of the alternative models had distinctive goals and adapted their narrative tactics to reach their intended audiences, which typically were conceived as young persons requiring instruction or mentoring. By contrast, the monthly Scientific American columns established a long-lived and stable image of the independent lay scientist.

  17. A Case of Mistaken Identity? A Comparison of Professional and Amateur Problem Gamblers.

    Science.gov (United States)

    Hing, Nerilee; Russell, Alex M T; Gainsbury, Sally M; Blaszczynski, Alex

    2016-03-01

    Professional gamblers are more likely than amateur gamblers to meet criteria for problem gambling but minimal research has examined their gambling behavior and its consequences. This study compared gambling behavior, problem gambling symptoms, related harms, recognition, and help-seeking among problem semi/professional gamblers (PPGs/PSPGs) and problem amateur gamblers (PAGs). Surveys completed by 57 self-identified professional gamblers, 311 semi-professional gamblers and 4226 amateur gamblers were analysed. PPGs/PSPGs were significantly more likely than PAGs to be male, younger, never married, speak a language other than English at home, and have higher psychological distress, compared to PAGs. PPGs/PSPGs were more likely to gamble more frequently on many skills-based forms, but most also participated in several chance-based forms. PPGs'/PSPGs' most common problematic gambling form was electronic gaming machines and they were more likely to have problems with sports betting than PAGs. Most PPGs/PSPGs reported coming out behind on all gambling forms over the previous year. PPGs/PSPGs were more likely than PAGs to report chasing losses and numerous detrimental financial gambling consequences. This group's self-identification as PPGs/PSPGs is clearly inaccurate and perhaps a means to avoid stigma, elevate status and support problem denial. PPGs/PSPGs may represent an extreme example of gamblers with erroneous cognitions and beliefs who lack the required discipline and skill to be successful professional gamblers. The findings identify a group of problem gamblers who may benefit from interventions to dispel their mistaken self-identity, and emphasize the need for more rigorous confirmation of professional gambler status in future research.

  18. Partnerships between Professional and Amateur Astronomers: A Shift in Research Paradigm

    Science.gov (United States)

    Yanamandra-Fisher, Padma A.; Orton, G. S.; Casquinha, P.; Coffelt, A.; Delcroix, M.; Go, C.; Hueso, R.; Jaeschke, W.; Kardasis, M.; Kraaikamp, E.; Morales, E.; Peach, D.; Rogers, J.; Wesley, A.; Willems, F.; Wilson, T.

    2012-10-01

    "Citizen Astronomy" can be thought of as the paradigm shift transforming the nature of observational astronomy. The night sky, with all its delights and mysteries, enthralls professional and amateur astronomers, and students who will form the next generation of scientists and engineers. These students are matriculating in an era of reduced funding for core competencies such as science, technology, mathematics and engineering (STEM) sciences and an ongoing general decline in these sciences. How then do we re-generate their interest and engage students while we perform cutting-edge planetary science in a fiscally constrained environment? One promising solution is to promote the emerging partnerships between professional and dedicated proficient amateur astronomers, that rely on creating a niche for long timeline of multispectral remote sensing. In the past decade, it is the collective observations and their analyses by the ever-increasing global network of amateur astronomers that has discovered interesting phenomena and provided the reference backdrop for observations by professional ground-based professional astronomers and spacecraft missions. We shall focus on our collaboration or "Citizen Astronomy: Jupiter and Saturn" for the past five years and illustrate the strong synergy between the two groups that has produced new scientific results. With the active inclusion and use of emerging social media (Facebook, Twitter, etc.), the near daily communication and updates (via email, Skype, Facebook) between the two groups is becoming a powerful tool for ground-based remote sensing. However, what is sorely lacking in this paradigm is the inclusion of teachers and students and, therefore, its inclusion in the secondary and tertiary classrooms. We will provide various scenarios to address this issue, and emphasize the various aspects of STEM learning/teaching that is necessary for students and teachers - all that can be performed at low cost; and showcase some of our

  19. Sensory organisation and reactive balance control of amateur rugby players: A cross-sectional study.

    Science.gov (United States)

    Chow, Gary C C; Chung, Joanne W Y; Ma, Ada W W; Macfarlane, Duncan J; Fong, Shirley S M

    2017-05-01

    This study compared the sensory organisation and reactive balance control of amateur rugby players and a control group. Forty-one amateur rugby players (22 males: 19 females; mean height ± SD = 168.8 ± 8.8 cm; mean weight ± SD = 63.9 ± 12.5 kg) and 31 control participants (22 males: 9 females; mean height ± SD = 171.5 ± 10.3 cm; mean weight ± SD = 63.8 ± 10.3 kg) completed the study. Their sensory organisation and standing balance performance were evaluated using a sensory organisation test (SOT), and their reactive balance performance was quantified using a motor control test (MCT). The SOT equilibrium scores (ES) and sensory ratios and the MCT motor response latencies were the major outcome measures. The results revealed that compared to the controls, amateur rugby players had lower SOT ESs under different sensory environments (P rugby group (P = .005, [Formula: see text] = 0.107 and 0.108, respectively). No significant difference was found in the somatosensory ratio (P = .853, [Formula: see text] rugby players demonstrated inferior standing balance performance compared to their non-trained counterparts. They relied less heavily on vestibular and visual inputs to maintain standing balance under different sensory environments. In addition, they reacted more slowly to postural disturbance, reflecting their suboptimal reactive balance ability in standing.

  20. Reproducibility of the Internal Load and Performance-Based Responses to Simulated Amateur Boxing.

    Science.gov (United States)

    Thomson, Edward D; Lamb, Kevin L

    2017-12-01

    Thomson, ED and Lamb, KL. Reproducibility of the internal load and performance-based responses to simulated amateur boxing. J Strength Cond Res 31(12): 3396-3402, 2017-The aim of this study was to examine the reproducibility of the internal load and performance-based responses to repeated bouts of a three-round amateur boxing simulation protocol (boxing conditioning and fitness test [BOXFIT]). Twenty-eight amateur boxers completed 2 familiarization trials before performing 2 complete trials of the BOXFIT, separated by 4-7 days. To characterize the internal load, mean (HRmean) and peak (HRpeak) heart rate, breath-by-breath oxygen uptake (V[Combining Dot Above]O2), aerobic energy expenditure, excess carbon dioxide production (CO2excess), and ratings of perceived exertion were recorded throughout each round, and blood lactate determined post-BOXFIT. Additionally, an indication of the performance-based demands of the BOXFIT was provided by a measure of acceleration of the punches thrown in each round. Analyses revealed there were no significant differences (p > 0.05) between repeated trials in any round for all dependent measures. The typical error (coefficient variation %) for all but 1 marker of internal load (CO2excess) was 1.2-16.5% and reflected a consistency that was sufficient for the detection of moderate changes in variables owing to an intervention. The reproducibility of the punch accelerations was high (coefficient of variance % range = 2.1-2.7%). In general, these findings suggest that the internal load and performance-based efforts recorded during the BOXFIT are reproducible and, thereby, offer practitioners a method by which meaningful changes impacting on performance could be identified.

  1. Neurological assessment and its relationship to CSF biomarkers in amateur boxers.

    Directory of Open Access Journals (Sweden)

    Sanna Neselius

    Full Text Available BACKGROUND: Mild traumatic brain injury (TBI or concussion is common in many sports. Today, neuropsychological evaluation is recommended in the monitoring of a concussion and in return-to-play considerations. To investigate the sensitivity of neuropsychological assessment, we tested amateur boxers post bout and compared with controls. Further the relationship between neuropsychological test results and brain injury biomarkers in the cerebrospinal fluid (CSF were investigated. METHOD: Thirty amateur boxers on high elite level with a minimum of 45 bouts and 25 non-boxing matched controls were included. Memory tests (Rey Osterrieth Complex Figure, Listening Span, Digit Span, Controlled Word Association Test, and computerized testing of episodic memory, tests of processing speed and executive functions (Trail Making, Reaction Time, and Finger Tapping were performed and related to previously published CSF biomarker results for the axonal injury marker neurofilament light (NFL. RESULTS: The neurological assessment showed no significant differences between boxers and controls, although elevated CSF NFL, as a sign of axonal injury, was detected in about 80% of the boxers 1-6 days post bout. The investigation of the relationship between neuropsychological evaluation and CSF NFL concentrations revealed that boxers with persisting NFL concentration elevation after at least 14 days resting time post bout, had a significantly poorer performance on Trail Making A (p = 0.041 and Simple Reaction Time (p = 0.042 compared to other boxers. CONCLUSION: This is the first study showing traumatic axonal brain injury can be present without measureable cognitive impairment. The repetitive, subconcussive head trauma in amateur boxing causes axonal injury that can be detected with analysis of CSF NFL, but is not sufficient to produce impairment in memory tests, tests of processing speed, or executive functions. The association of prolonged CSF NFL increase in

  2. Ankle inversion taping using kinesiology tape for treating medial ankle sprain in an amateur soccer player

    OpenAIRE

    Lee, Sun-Min; Lee, Jung-Hoon

    2015-01-01

    [Purpose] The purpose of this study was to report the effects of ankle inversion taping using kinesiology tape in a patient with a medial ankle sprain. [Subject] A 28-year-old amateur soccer player suffered a Grade 2 medial ankle sprain during a match. [Methods] Ankle inversion taping was applied to the sprained ankle every day for 2 months. [Results] His symptoms were reduced after ankle inversion taping application for 2 months. The self-reported function score, the reach distances in the S...

  3. [Amateurism in Geology: the French Reception of the Continental Drift Theory (1920-1950)].

    Science.gov (United States)

    Le Vigouroux, Philippe; Gohau, Gabriel

    At the beginning of the XXth century, Wegener proposed a theory – that of the roaming drift of the continents – unifying the rival theories of the Europeans and the Americans. As the work of a non-specialist who didn’t trouble himself with specific details, it raised numerous criticisms from specialists in various disciplines though others welcomed and supported it. Some even understood that despite its flaws, it started a new research program. Paradoxically, as regards its simplicity, nonspecialists – engineers, popularizers, secondary school teachers and even believers in para-sciences – gave it a favorable reception. Being amateurs, they continued to endorse it when specialists abandoned it.

  4. The invisible teenager: Comic book materiality and the amateur films of Don Glut

    Directory of Open Access Journals (Sweden)

    Matt Yockey

    2014-06-01

    Full Text Available Don Glut, between the ages of 9 and 25, made 41 short amateur films inspired by horror, science fiction, and superhero movies, serials, and comic books. The tactile qualities of comic books as affect-generating objects are instrumental to how Glut confirmed his identity during a time (adolescence in which that identity is particularly unstable. Glut used the popular figure of the teen rebel and his role as a filmmaker in order to negotiate with hegemonic restrictions on his objects of affection, especially comic books.

  5. Características Antropométricas de Triatletas amateur Chilenos: Un estudio piloto

    OpenAIRE

    Jorge A Sanhueza; Carlos Bahamondes-Avila; Claudio Hernández-Mosqueira; Daniela Abarzua-Mandiola; Tomás Zambrano; Luis A Salazar

    2017-01-01

    Introducción: Las características antropométricas de los triatletas son consideradas un importante factor condicionante del rendimiento deportivo. El objetivo del presente estudio fue caracterizar el perfil antropométrico de un grupo de triatletas amateur chilenos participantes de la prueba de medio Ironman de Pucón del año 2014 según categoría. Material y Métodos: Fueron evaluados 37 triatletas varones con un promedio de edad de 29,0 años y un peso de 74,3kg. Se midieron 25 variables ant...

  6. You Tube Video Genres. Amateur how-to Videos Versus Professional Tutorials

    Directory of Open Access Journals (Sweden)

    Andreea Mogoș

    2015-12-01

    Full Text Available In spite of the fact that there is a vast literature on traditional textual and visual genre classifications, the categorization of web content is still a difficult task, because this medium is fluid, unstable and fast-paced on one hand and, on the other hand, the genre classifications are socially constructed through the tagging process and the interactions (commenting, rating, chatting. This paper focuses on YouTube tutorials and aims to compare video tutorials produced by professionals with amateur video tutorials.

  7. Watching Dallas Again 1 : Doing Retro Audience Research

    NARCIS (Netherlands)

    Gilroy, Amanda

    2014-01-01

    This essay and the audience reception projects it introduces alleviate the desperation of seeking the television audience by recourse to Ien Ang's influential book, Watching Dallas ([1982] 1985). Within the context of a unit on audience research in a master's-level course on media, two groups of

  8. Watch Out for Children: A Mothers' Statement to Advertisers.

    Science.gov (United States)

    Institute for American Values, New York, NY.

    This report explains that all adults must watch out for all children, cautioning that marketing is harmful to children. Advertisers are aggressively targeting age groups that, until recently, have been considered off-limits and occupying more of children's psychic and physical space. The report presents a commitment by mothers to all children to…

  9. Presidential Debate Watching, Issue Knowledge, Character Evaluation, and Vote Choice

    Science.gov (United States)

    Benoit, William L.; Hansen, Glenn J.

    2004-01-01

    This study employs NES (National Election Survey) data from several presidential elections to investigate the effects of presidential debate watching on voters' issue knowledge, character evaluation, and vote choice. Debates can instill issue knowledge; however, voters are less likely to learn about incumbent presidents seeking re-election after a…

  10. Vakuuttava teknologia älykelloissa:case Apple Watch

    OpenAIRE

    Laaksoviita, J. (Joonas)

    2016-01-01

    Tiivistelmä Tämä kandidaatintutkielma perehtyi vakuuttavaan teknologiaan Apple Watch -älykellossa. Tutkielman ensimmäisessä osassa esiteltiin kirjallisuuskatsauksen kautta älykellojen taustaa ja tutkittava laite. Sen jälkeen luotiin katsaus vakuuttavan teknologian perusideaan ja esiteltiin Persuasive Systems Design -malli vakuuttavan teknologian sovellusten analysointiin. Toisessa osiossa suoritettiin analyysi Apple Watchin...

  11. 47 CFR 80.1123 - Watch requirements for ship stations.

    Science.gov (United States)

    2010-10-01

    ... Section 80.1123 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES STATIONS IN THE MARITIME SERVICES Global Maritime Distress and Safety System (GMDSS) Operating... watches for broadcasts of maritime safety information on the appropriate frequency or frequencies on which...

  12. Association of leisure time physical activity, watching television ...

    African Journals Online (AJOL)

    The present study shows the association of leisure time physical activity (LTPA) and watching TV with lipid profile & obesity in a South Indian adult population. Methods: This cross-sectional study was performed on 2171 women and 2016 men in Mahatma Gandhi Medical College and Research Institute. The subjects were ...

  13. Observations of cosmic gamma ray bursts with WATCH on EURECA

    DEFF Research Database (Denmark)

    Brandt, Søren; Lund, N.; Castro-Tirado, A. J.

    1995-01-01

    19 Cosmic Gamma-Ray Bursts were detected by the WATCH wide field X-ray monitor during the 11 months flight of EURECA. The identification of the bursts were complicated by a high frequency of background of events caused by high energy cosmic ray interactions in the detector and by low energy, trap...

  14. In-situ observations of a bi-modal ion distribution in the outer coma of comet P/Halley

    Science.gov (United States)

    Thomsen, M. F.; Feldman, W. C.; Wilken, B.; Jockers, K.; Stuedemann, W.

    1987-01-01

    Observations obtained by the Johnstone Plasma Analyzer on the Giotto fly-by of comet Halley showed a fairly sudden decrease in the count rate of energetic (about 30 KeV) water-group ions inside about 500,000 km from the nucleus. This decrease was accompanied by the appearance of a new water-group ion population at slightly lower energies (less than 10 KeV). Close inspection reveals that this lower-energy peak was also present somewhat earlier in the postshock flow but only became prominent near the sudden transition just described. It is shown that the observed bimodal ion distribution is well explained in terms of the velocity history of the accreting solar wind flow in the outer coma. The decline in count rate of the energetic pick-up distribution is due to a relatively sudden slowing of the bulk flow there and not to a loss of particles. Hence, charge-exchange cooling of the flow is probably not important at these distances from the nucleus. The observations suggest that pitch-angle scattering is fairly efficient at least after the bow shock, but that energy diffusion is probably not very efficient.

  15. In situ energetic particle observations at comet Halley recorded by instrumentation aboard the Giotto and Vega 1 missions

    Energy Technology Data Exchange (ETDEWEB)

    McKenna-Lawlor, S.; Daly, P.; Kirsch, E.; Wilken, B.; O' Sullivan, D.; Thompson, A.; Kecskemety, K.; Somogyi, A.; Coates, A.

    1989-04-01

    Three important observations recorded in the energetic particle data secured at Halley's comet during March 1986 are reviewed. These include (a) quasi periodic variations of cometary ion fluxes observed inbound and outbound by both the EPONA instrument aboard Giotto and by the Tunde-M instrument aboard Vega 1. A possible explanation of the results in terms of a spin modulation of the outgassing rate of the nucleus is discussed; (b) by combining the EPONA data with JPA-IIS data it is possible to infer that the ion fluxes measured at encounter by EPONA were of the water group. These particles displayed energies in excess of those attained by the pick-up process acting alone. Comparisons between energy spectra prepared using the composite observational data and, corresponding, theoretically derived plots suggest that, downstream of the shock (inbound), stochastic (second-order-Fermi) acceleration may have contributed to energizing the particles; (c) large fluxes of electrons (E>300keV) and ions (E>3.5 MeV) were unexpectedly recorded by EPONA in the magnetic cavity. The observed enhancements (up to approximately three orders of magnitude) appear to be cometary in origin.

  16. In situ energetic particle observations at comet Halley recorded by instrumentation aboard the Giotto and Vega 1 missions

    International Nuclear Information System (INIS)

    McKenna-Lawlor, S.; Daly, P.; Kirsch, E.; Wilken, B.; O'Sullivan, D.; Thompson, A.; Kecskemety, K.; Somogyi, A.

    1989-01-01

    Three important observations recorded in the energetic particle data secured at Halley's comet during March 1986 are reviewed. These include (a) quasi periodic variations of cometary ion fluxes observed inbound and outbound by both the EPONA instrument aboard Giotto and by the Tunde-M instrument aboard Vega 1. A possible explanation of the results in terms of a spin modulation of the outgassing rate of the nucleus is discussed; (b) by combining the EPONA data with JPA-IIS data it is possible to infer that the ion fluxes measured at encounter by EPONA were of the water group. These particles displayed energies in excess of those attained by the pick-up process acting alone. Comparisons between energy spectra prepared using the composite observational data and, corresponding, theoretically derived plots suggest that, downstream of the shock (inbound), stochastic (second-order-Fermi) acceleration may have contributed to energizing the particles; (c) large fluxes of electrons (E>300keV) and ions (E>3.5 MeV) were unexpectedly recorded by EPONA in the magnetic cavity. The observed enhancements (up to approximately three orders of magnitude) appear to be cometary in origin

  17. The Global Economic Impact of Manta Ray Watching Tourism

    Science.gov (United States)

    O’Malley, Mary P.; Lee-Brooks, Katie; Medd, Hannah B.

    2013-01-01

    As manta rays face increased threats from targeted and bycatch fisheries, manta ray watching tourism, if managed properly, may present an attractive economic alternative to consumptive use of these species. Both species in the genus Manta (Manta alfredi and Manta birostris) are classified by the International Union for the Conservation of Nature Red List as species Vulnerable to extinction in the wild, and are considered unsustainable as fisheries resources due to their conservative life history characteristics, which considerably reduce their ability to recover population numbers when depleted. Utilising dive operator surveys, Internet research, and a literature review, this study provides the first global estimate of the direct economic impact of manta ray watching tourism and examines the potential socio-economic benefits of non-consumptive manta ray watching operations relative to consumptive use of manta rays as a fishery resource. In the 23 countries in which manta ray watching operations meeting our criteria were identified, we estimated direct revenue to dive operators from manta ray dives and snorkels at over US$73 million annually and direct economic impact, including associated tourism expenditures, of US$140 million annually. Ten countries account for almost 93% of the global revenue estimate, specifically Japan, Indonesia, the Maldives, Mozambique, Thailand, Australia, Mexico, United States, Federated States of Micronesia and Palau. In many of the areas where directed fisheries for manta rays are known to occur, these activities overlap with manta ray tourism sites or the migratory range of the mantas on which these sites depend, and are likely to be unsustainable and detrimental to manta ray watching tourism. PMID:23741450

  18. The global economic impact of manta ray watching tourism.

    Science.gov (United States)

    O'Malley, Mary P; Lee-Brooks, Katie; Medd, Hannah B

    2013-01-01

    As manta rays face increased threats from targeted and bycatch fisheries, manta ray watching tourism, if managed properly, may present an attractive economic alternative to consumptive use of these species. Both species in the genus Manta (Manta alfredi and Manta birostris) are classified by the International Union for the Conservation of Nature Red List as species Vulnerable to extinction in the wild, and are considered unsustainable as fisheries resources due to their conservative life history characteristics, which considerably reduce their ability to recover population numbers when depleted. Utilising dive operator surveys, Internet research, and a literature review, this study provides the first global estimate of the direct economic impact of manta ray watching tourism and examines the potential socio-economic benefits of non-consumptive manta ray watching operations relative to consumptive use of manta rays as a fishery resource. In the 23 countries in which manta ray watching operations meeting our criteria were identified, we estimated direct revenue to dive operators from manta ray dives and snorkels at over US$73 million annually and direct economic impact, including associated tourism expenditures, of US$140 million annually. Ten countries account for almost 93% of the global revenue estimate, specifically Japan, Indonesia, the Maldives, Mozambique, Thailand, Australia, Mexico, United States, Federated States of Micronesia and Palau. In many of the areas where directed fisheries for manta rays are known to occur, these activities overlap with manta ray tourism sites or the migratory range of the mantas on which these sites depend, and are likely to be unsustainable and detrimental to manta ray watching tourism.

  19. The global economic impact of manta ray watching tourism.

    Directory of Open Access Journals (Sweden)

    Mary P O'Malley

    Full Text Available As manta rays face increased threats from targeted and bycatch fisheries, manta ray watching tourism, if managed properly, may present an attractive economic alternative to consumptive use of these species. Both species in the genus Manta (Manta alfredi and Manta birostris are classified by the International Union for the Conservation of Nature Red List as species Vulnerable to extinction in the wild, and are considered unsustainable as fisheries resources due to their conservative life history characteristics, which considerably reduce their ability to recover population numbers when depleted. Utilising dive operator surveys, Internet research, and a literature review, this study provides the first global estimate of the direct economic impact of manta ray watching tourism and examines the potential socio-economic benefits of non-consumptive manta ray watching operations relative to consumptive use of manta rays as a fishery resource. In the 23 countries in which manta ray watching operations meeting our criteria were identified, we estimated direct revenue to dive operators from manta ray dives and snorkels at over US$73 million annually and direct economic impact, including associated tourism expenditures, of US$140 million annually. Ten countries account for almost 93% of the global revenue estimate, specifically Japan, Indonesia, the Maldives, Mozambique, Thailand, Australia, Mexico, United States, Federated States of Micronesia and Palau. In many of the areas where directed fisheries for manta rays are known to occur, these activities overlap with manta ray tourism sites or the migratory range of the mantas on which these sites depend, and are likely to be unsustainable and detrimental to manta ray watching tourism.

  20. Une littérature du foyer : les livres de travaux manuels amateur

    Directory of Open Access Journals (Sweden)

    Claire Le Thomas

    2008-04-01

    Full Text Available Au cours du XIX e siècle naît une littérature entièrement voué au domicile : les manuels de travaux amateur. A travers ces livres se diffusent des usages dédiés à l’embellissement du logis ou à son entretien, c’est-à-dire de nouvelles occupations du temps libre qui accompagnent la transformation des représentations et des usages de l’espace domestique. Le mode d’exposition du discours sur la maison dans ces ouvrages amateur reflète ainsi l’intensité de l’engagement affectif et intellectuel concentré autour du foyer et dévoile la manière dont fut pensée et posée la problématique de l’habitat au cours de la seconde moitié du XIX e siècle.

  1. No Relationship Between Hamstring Flexibility and Hamstring Injuries in Male Amateur Soccer Players: A Prospective Study.

    Science.gov (United States)

    van Doormaal, Mitchell C M; van der Horst, Nick; Backx, Frank J G; Smits, Dirk-Wouter; Huisstede, Bionka M A

    2017-01-01

    In soccer, although hamstring flexibility is thought to play a major role in preventing hamstring injuries, the relationship between hamstring flexibility and hamstring injuries remains unclear. To investigate the relationship between hamstring flexibility and hamstring injuries in male amateur soccer players. Case-control study; Level of evidence, 3. This study included 450 male first-class amateur soccer players (mean age, 24.5 years). Hamstring flexibility was measured by performing the sit-and-reach test (SRT). The relationship between hamstring flexibility and the occurrence of hamstring injuries in the following year, while adjusting for the possible confounding effects of age and previous hamstring injuries, was determined with a multivariate logistic regression analysis. Of the 450 soccer players, 21.8% reported a hamstring injury in the previous year. The mean (±SD) baseline score for the SRT was 21.2 ± 9.2 cm. During the 1-year follow-up period, 23 participants (5.1%) suffered a hamstring injury. In the multivariate analysis, while adjusting for age and previous injuries, no significant relationship was found between hamstring flexibility and hamstring injuries ( P = .493). In this group of soccer players, hamstring flexibility (measured with the SRT) was not related to hamstring injuries. Age and previous hamstring injuries as possible confounders did not appear to influence this relationship. Other etiological factors need to be examined to further elucidate the mechanism of hamstring injuries.

  2. Effects of special composite stretching on the swing of amateur golf players.

    Science.gov (United States)

    Lee, Joong-Chul; Lee, Sung-Wan; Yeo, Yun-Ghi; Park, Gi Duck

    2015-04-01

    [Purpose] The study investigated stretching for safer a golf swing compared to present stretching methods for proper swings in order to examine the effects of stretching exercises on golf swings. [Subjects] The subjects were 20 amateur golf club members who were divided into two groups: an experimental group which performed stretching, and a control group which did not. The subjects had no bone deformity, muscle weakness, muscle soreness, or neurological problems. [Methods] A swing analyzer and a ROM measuring instrument were used as the measuring tools. The swing analyzer was a GS400-golf hit ball analyzer (Korea) and the ROM measuring instrument was a goniometer (Korea). [Results] The experimental group showed a statistically significant improvement in driving distance. After the special stretching training for golf, a statistically significant difference in hit-ball direction deviation after swings were found between the groups. The experimental group showed statistically significant decreases in hit ball direction deviation. After the special stretching training for golf, statistically significant differences in hit-ball speed were found between the groups. The experimental group showed significant increases in hit-ball speed. [Conclusion] To examine the effects of a special stretching program for golf on golf swing-related factors, 20 male amateur golf club members performed a 12-week stretching training program. After the golf stretching training, statistically significant differences were found between the groups in hit-ball driving distance, direction deviation, deflection distance, and speed.

  3. From casual stargazer to amateur astronomer how to advance to the next level

    CERN Document Server

    Eagle, Dave

    2014-01-01

    The beginning astronomical observer passes through a series of stages.The initial stage is hugely exciting and gives beginners a real buzz as they discover some of the faint fuzzy objects,  markings on the planets, rings around Saturn and the craters on the Moon. But as novice stargazers progress, they want to know what more there is than looking at faint fuzzy blobs or indistinct planet markings. Many novices jump to the conclusion – wrongly – that they need to spend lots of money on expensive equipment to progress.   “From Casual Stargazer to Amateur Astronomer” has been written specifically to address this group of budding amateur astronomers. Astronomy is much more than a quick sightseeing tour. Patient observers who develop their skills will start to appreciate what they are seeing, knowing exactly what to look out for on any particular night. Equally important, they will learn what not to expect to see.   This guide is for those who want to develop their observing skills beyond mere sightseei...

  4. Concussion knowledge and experience among Welsh amateur rugby union coaches and referees

    Science.gov (United States)

    Griffin, Steffan Arthur; Ranson, Craig; Moore, Isabel; Mathema, Prabhat

    2017-01-01

    Background Rugby union is a collision sport where participants are at high risk of sustaining a concussion. In settings where there is little qualified medical supervision, certain stakeholders (eg, coaches and officials) should possess sufficient knowledge in regard to the recognition and management of concussion. Aim The aim of this study was to assess the knowledge and experience of various aspects of concussion among coaches and referees involved in Welsh amateur rugby union. Methods A questionnaire was distributed to 1843 coaches and 420 referees. Results A total of 333 coaches and 283 referees completed the questionnaire (18% and 68% response rates, respectively). Participants exhibited greater knowledge of concussion symptom recognition relative to knowledge of both the consequences of concussion and associated return-to-play protocols, both of which could be considered poor. There were no differences in knowledge levels between coaches and referees or between participants with or without a history of concussion. Two-thirds of participants incorrectly believed that headgear could prevent concussion, and nearly 30% of coaches reported having witnessed other coaches allowing a potentially concussed player to continue playing. Conclusions Identification of several misconceptions indicates that concussion management within Welsh amateur rugby union needs to be improved, warranting a multi-faceted educational intervention. PMID:29259806

  5. Football gambling three arm-controlled study: gamblers, amateurs and laypersons.

    Science.gov (United States)

    Huberfeld, Ronen; Gersner, Roman; Rosenberg, Oded; Kotler, Moshe; Dannon, Pinhas N

    2013-01-01

    Football (soccer) betting, as a strategic form of betting, became one of the favorite wagers for pathological gamblers. Previous studies demonstrated the psychological and biological significance of the 'illusion of control' (personal control) and 'near miss' results in gambling. In our study, we explored whether knowledge and expertise of pathological sports gamblers can ensure a successful bet. Participants were divided into three groups of individuals - pathological gamblers, amateurs and laypersons - and were asked to predict in advance the general result and the exact result of football matches in the European Champions League Round of 16. The 165 participants included 53 pathological sports gamblers (52 males and 1 female), 78 laypersons (45 females and 33 males) and 34 amateurs (all males). After a thorough statistical analysis, we found no significant differences between the groups, no matter what kind of previous knowledge they had acquired. This study demonstrates that the 'illusion of control' of pathological gamblers, attained by knowledge of the game and its latest data and information (especially in a strategic gamble as football betting), has no factual background. Moreover, our study demonstrates without a doubt that there is no significant difference between the male pathological sports gamblers group and the male/female laypersons group. Copyright © 2012 S. Karger AG, Basel.

  6. Exercise addiction risk and health in male and female amateur endurance cyclists.

    Science.gov (United States)

    Mayolas-Pi, Carmen; Simón-Grima, Javier; Peñarrubia-Lozano, Carlos; Munguía-Izquierdo, Diego; Moliner-Urdiales, Diego; Legaz-Arrese, Alejandro

    2017-03-01

    Background and aims To determine the relationship between the risk of exercise addiction (REA) and health status in amateur endurance cyclists. Methods In 859 (751 men and 108 women) cyclists and 718 inactive subjects (307 men and 411 women), we examined the REA (Exercise Addiction Inventory), training status (volume, frequency, experience, and performance), socioeconomic status, quality of life (QoL) (SF-12), quality of sleep (Pittsburgh Sleep Quality Index), anxiety and depression (Hospital Anxiety and Depression Scale), and cardiometabolic risk: body mass index, physical activity (International Physical Activity Questionnaire), physical condition (International Fitness Scale), adherence to the Mediterranean diet (Mediterranean Diet Adherence Screener), alcohol and tobacco consumption. Results In total, 17% of the cyclists showed evidence of REA and 83% showed low REA. REA occurred independent of age, sex, training, and socioeconomic status (all ps > .05). Regardless of REA, the cyclists displayed a better physical QoL and a lower cardiometabolic risk than the inactive subjects (all ps Addiction × Sex interaction in the other analyzed variables. Conclusion Our results suggest that an increased prevalence of REA limits the benefits that amateur endurance cycling has on mental health and quality of sleep.

  7. Music Societies in the 19th Century Oporto : Private Spaces of Amateur and Professional Music Making

    Directory of Open Access Journals (Sweden)

    Ana Maria Liberal

    2009-05-01

    Full Text Available A number of private societies and clubs flourished in Oporto in the 19th Century, whose aim was to encourage in their members "benevolence relationships and good society" offering them "an honest and civilized leisure times". Clearly elitist, these nineteenth century recreational clubs had strict membership admission policies, which generally belonged to the higher echelons of society, more specifically the bourgeois, since the titled aristocracy was scarce in Oporto. It is worth mentioning here in parenthesis that Oporto was an essentially bourgeois, commercial city, unlike the capital, Lisbon, where the court "drags with it the whole official and unofficial world which conceitedly flutters around it". Each association organised musical concerts, balls and soirées musicales – weekly, twice a week or once a month – which also offered members other amusements, like conversation, reading, playing cards or dancing. Events of a musical character were normally performed by the club members, usually amateurs – referred to as dilettanti – who would be joined by prestigious Portuguese or foreign professionals. The purpose of this article is to describe the musical activity of the five main venues for private socialising in Oporto in the 1800s, and their contribution to the development of the musical taste of the city's society, taking into account both amateur and professional practice and particularly the repertoire performed.

  8. Comparison of Joint Loading in Badminton Lunging between Professional and Amateur Badminton Players

    Directory of Open Access Journals (Sweden)

    Lin Fu

    2017-01-01

    Full Text Available The knee and ankle are the two most injured joints associated with the sport of badminton. This study evaluates biomechanical factors between professional and amateur badminton players using an injury mechanism model. The aim of this study was to investigate the kinematic motion and kinetic loading differences of the right knee and ankle while performing a maximal right lunge. Amateur players exhibited greater ankle range of motion (p<0.05, r=0.89 and inversion joint moment (p<0.05, r=0.54 in the frontal plane as well as greater internal joint rotation moment (p<0.05, r=0.28 in the horizontal plane. In contrast, professional badminton players presented a greater knee joint moment in the sagittal (p<0.05, r=0.59 and frontal (p<0.05, r=0.37 planes, which may be associated with increased knee ligamentous injury risk. To avoid injury, the players need to forcefully extend the knee with internal rotation, strengthen the muscles around the ankle ligament, and maximise joint coordination during training. The injuries recorded and the forces responsible for the injuries seem to have developed during training activity. Training programmes and injury prevention strategies for badminton players should account for these findings to reduce potential injury to the ankle and knee.

  9. Amateur boxing and risk of chronic traumatic brain injury: systematic review of observational studies.

    Science.gov (United States)

    Loosemore, Mike; Knowles, Charles H; Whyte, Greg P

    2007-10-20

    To evaluate the risk of chronic traumatic brain injury from amateur boxing. Secondary research performed by combination of sport physicians and clinical academics. DESIGN, DATA SOURCES, AND METHODS: Systematic review of observational studies in which chronic traumatic brain injury was defined as any abnormality on clinical neurological examination, psychometric testing, neuroimaging studies, and electroencephalography. Studies were identified through database (1950 to date) and bibliographic searches without language restrictions. Two reviewers extracted study characteristics, quality, and data, with adherence to a protocol developed from a widely recommended method for systematic review of observational studies (MOOSE). 36 papers had relevant extractable data (from a detailed evaluation of 93 studies of 943 identified from the initial search). Quality of evidence was generally poor. The best quality studies were those with a cohort design and those that used psychometric tests. These yielded the most negative results: only four of 17 (24%) better quality studies found any indication of chronic traumatic brain injury in a minority of boxers studied. There is no strong evidence to associate chronic traumatic brain injury with amateur boxing.

  10. Relation of 25-meter Swimming Performance with Physical Properties and Isokinetic Knee Strength in Amateur Young Swimmers

    OpenAIRE

    DOKUMACI, Bircan; AYGÜN, Cihan; ÇAKIR ATABEK, Hayriye

    2017-01-01

    The purpose of this study was to investigate the relationship between physical properties,isokinetic knee strength and swimming performance in young amateur athletes. Seventeen 18-24 year old amateur swimmers (n=13 males, mean age=20.0 ± 2.1 years; n=4 females, meanage=21.5 ± 1.7 years) volunteered to participate in this study. All athletes were member of thesame team who were engaged to the swim training at least for 4 years. Following the 5-minwarm up session, each participant performed thr...

  11. Watching your weight? The relations between watching soaps and music television and body dissatisfaction and restrained eating in young girls

    NARCIS (Netherlands)

    Anschutz, D.J.; Engels, R.C.M.E.; Leeuwe, J.F.J. van; Strien, T. van

    2009-01-01

    Although previous research showed that the thin ideal provided by the media affects body image and eating behaviour in young children, less is known about specific media contents that are related to body image and eating behaviour. This study tested the associations between watching soaps and music

  12. Losing Sleep to Watch the Night-Sky: The Relationship between Sleep-Length and Noctcaelador

    Science.gov (United States)

    Kelly, William E.; Rose, Callie

    2005-01-01

    For most of history, humans have been watching the night-sky (Hawkins, 1983). Historically, individuals have watched the night-sky for aesthetic appreciation and to gain insights and knowledge (Brecher & Feirtag, 1979). Despite the long history of night-sky watching among humans and the apparent importance of the behavior to large groups of…

  13. Watching a Film With Others : Towards a Theory of Collective Spectatorship

    NARCIS (Netherlands)

    Hanich, Julian

    This essay suggests that collectively watching a film with quiet attention should be considered a kind of joint action. When silently watching a film in a cinema the viewers are not merely engaged in individual actions – watching a film with others often implies a shared activity based on a

  14. 33 CFR 401.60 - Listening watch and notice of arrival.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Listening watch and notice of arrival. 401.60 Section 401.60 Navigation and Navigable Waters SAINT LAWRENCE SEAWAY DEVELOPMENT....60 Listening watch and notice of arrival. (a) Vessels shall be on radio listening watch on the...

  15. 47 CFR 80.305 - Watch requirements of the Communications Act and the Safety Convention.

    Science.gov (United States)

    2010-10-01

    ... and the Safety Convention. 80.305 Section 80.305 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES STATIONS IN THE MARITIME SERVICES Safety Watch Requirements and Procedures Ship Station Safety Watches § 80.305 Watch requirements of the Communications Act and the Safety...

  16. Structure And Chemistry Of Ion Masses ≤ 40 Amu In The Inner Coma Of Comet HalleyStructure And Chemistry Of Ion Masses ≤ 40 Amu In The Inner Coma Of Comet Halley

    Science.gov (United States)

    Haider, S. A.; Bhardwaj, A.

    In this paper, we have developed a chemical model to study the chemistry of 46 ions (CH5+, SH+, S+, H2S+, NH3OH+, CH3+, HCO+, H2CO+, C2H3+, C3H3+, H3CO+, H2CN+, H3S+, NH3+, CH3OH2+, CH3OH+, NH4+, H3O+, N+, NH+, NH2+, N2+, C2H+, C+, CH2+, CH+, C2N+, C3H+, C2H4+, C2H5+, CO+, O+, H+, C2+, HCN+, OH+, O2+, CHOH2+, HNO+, N2H+, H2O+, CH4+, C2H2+, (H2O)2+, H5O2+ and C3H+) corresponding to masses ≤ 40 amu in the inner coma of comet Halley. The ionization sources included in the model are solar EUV photon, photoelectron and auroral electron of solar wind origin. The production rates, loss rates and mass densities of these ions are calculated using Analytical Yield Spectrum approach and coupled continuity equation controlled by steady state photochemical model, which involves over 600 chemical reactions between ions, neutrals, photons and electrons in the coma. The calculated mass densities are compared with Giotto Ion Mass Spectrometer (IMS) and Neutral Mass Spectrometer (NMS) data at radial distances 1500 km, 3500 km and 6000 km. The nine major peaks at 12, 15, 19, 26, 28, 31, 33, 35, and 39 amu observed in IMS/NMS spectra are reproduced well by model calculation. ^

  17. Watch-wearing as a marker of conscientiousness

    Directory of Open Access Journals (Sweden)

    David A. Ellis

    2015-08-01

    Full Text Available Several aspects of an individual’s appearance have been shown to predict personality and related behaviour. While some of these cues are grounded in biology (e.g., the human face, other aspects of a person’s appearance can be actively controlled (e.g., clothing. In this paper, we consider a common fashion accessory, the wristwatch. In an exploratory sample (N > 100 and a confirmatory sample (N > 600, we compared big-five personality traits between individuals who do or do not regularly wear a standard wristwatch. Significantly higher levels of conscientiousness were observed in participants who wore a watch. In a third study (N = 85, watch wearers arrived significantly earlier to appointments in comparison to controls. These results are discussed in relation to enclothed cognition and the rise of wearable technology including smartwatches.

  18. Watch-wearing as a marker of conscientiousness.

    Science.gov (United States)

    Ellis, David A; Jenkins, Rob

    2015-01-01

    Several aspects of an individual's appearance have been shown to predict personality and related behaviour. While some of these cues are grounded in biology (e.g., the human face), other aspects of a person's appearance can be actively controlled (e.g., clothing). In this paper, we consider a common fashion accessory, the wristwatch. In an exploratory sample (N > 100) and a confirmatory sample (N > 600), we compared big-five personality traits between individuals who do or do not regularly wear a standard wristwatch. Significantly higher levels of conscientiousness were observed in participants who wore a watch. In a third study (N = 85), watch wearers arrived significantly earlier to appointments in comparison to controls. These results are discussed in relation to enclothed cognition and the rise of wearable technology including smartwatches.

  19. Características Antropométricas de Triatletas amateur Chilenos: Un estudio piloto

    Directory of Open Access Journals (Sweden)

    Jorge A Sanhueza

    2017-10-01

    Full Text Available Introducción: Las características antropométricas de los triatletas son consideradas un importante factor condicionante del rendimiento deportivo. El objetivo del presente estudio fue caracterizar el perfil antropométrico de un grupo de triatletas amateur chilenos participantes de la prueba de medio Ironman de Pucón del año 2014 según categoría. Material y Métodos: Fueron evaluados 37 triatletas varones con un promedio de edad de 29,0 años y un peso de 74,3kg. Se midieron 25 variables antropométricas. Se calculó la composición corporal en cinco componentes y el somatotipo. Se utilizó estadística descriptiva para la caracterización de los triatletas amateur chilenos. Resultados: Los resultados del fraccionamiento muestran valores medios (desviación estándar de masa adiposa 23,9% (3,5, masa muscular 48,0% (3,4, masa residual 11,6% (8,0, masa ósea 11,3% (1,3 y masa piel 5,2% (0,3. También se observan diferencias significativas en la masa piel entre las categorías ≤24 años y ≥35 años, y presencia de un menor porcentaje de masa adiposa y mayor masa muscular en el grupo 25-34 años. En el somatotipo se presenta una dominancia meso-endomorfica, con diferencias significativas en el componente endomórfico, mayor en ≥35 años, y ectomórfico, mayor en ≤24 años. Conclusiones: Las características morfológicas de los triatletas amateur chilenos no se asemejan a la de triatletas profesionales, observándose elevados porcentajes de masa adiposa, sumatoria de 6 pliegues y endomorfía; bajo nivel de masa muscular y ósea y del componente ectomórfico, lo cual pudiese afectar su rendimiento en este tipo de pruebas.

  20. The introduction of Copyright Law in England and its effect on the dispute between Newton, Halley and Flamsteed concerning the 'pirated' Historia Coelestis 1712

    Science.gov (United States)

    Birks, J. L.

    2013-03-01

    In 1712 Sir Isaac Newton and Dr Edmund Halley, acting on behalf of the Royal Society, printed some 400 copies of the star catalogue Historia Coelestis under the name of John Flamsteed, including his observations of the positions of nearly 3000 stars made at Greenwich from 1676. Flamsteed had not been allowed to check the proofs of this work before it was published, and he was enraged to see what he considered to be a travesty of his life's work. This became a great scientific scandal of the early eighteenth century, which echoes down to the present day.

  1. Deleterious effects of anabolic steroids on serum lipoproteins, blood pressure, and liver function in amateur body builders

    NARCIS (Netherlands)

    Lenders, J. W.; Demacker, P. N.; Vos, J. A.; Jansen, P. L.; Hoitsma, A. J.; van 't Laar, A.; Thien, T.

    1988-01-01

    The effects of self-administered anabolic steroids (AS) on lipoproteins, liver function, and blood pressure were studied in male amateur body builders. Twenty body builders were studied at the end of a course of AS (group 1) and 42 body builders were studied after discontinuation of the AS for a

  2. Relationship between achievement goal orientations and the perceived purposes of playing rugby union for professional and amateur players.

    Science.gov (United States)

    Treasure, D C; Carpenter, P J; Power, K T

    2000-08-01

    The recent professionalization of rugby union makes it an excellent achievement context in which to examine the relationship between achievement goal orientations and the perceived purposes of sport as a function of competitive standard. During the 1996-97 season, 73 professional and 106 amateur rugby players in England completed a series of questionnaires assessing their achievement goal orientations, beliefs about the purposes of rugby and demographic information. The results of a canonical correlation analysis revealed a conceptually coherent relationship between achievement goal orientations and purposes of rugby. Specifically, a high ego/moderate task orientation was positively related to fitness, aggression and financial remuneration as significant purposes of rugby. Professional players scored higher on those purposes of rugby related to aggression, financial remuneration and fitness, but lower on sportspersonship than amateur players. Professional players also reported higher task and ego goal orientations than amateur players. The findings are discussed in terms of the differences in lifestyle and motivation of professional and amateur rugby union players.

  3. Incidence, severity, aetiology and type of neck injury in men's amateur rugby union: a prospective cohort study

    Directory of Open Access Journals (Sweden)

    Pollard Henry P

    2010-07-01

    Full Text Available Abstract Background There is a paucity of epidemiological data on neck injury in amateur rugby union populations. The objective of this study was to determine the incidence, severity, aetiology and type of neck injury in Australian men's amateur rugby union. Methods Data was collected from a cohort of 262 participants from two Australian amateur men's rugby union clubs via a prospective cohort study design. A modified version of the Rugby Union Injury Report Form for Games and Training was used by the clubs physiotherapist or chiropractor in data collection. Results The participants sustained 90 (eight recurrent neck injuries. Exposure time was calculated at 31143.8 hours of play (12863.8 hours of match time and 18280 hours of training. Incidence of neck injury was 2.9 injuries/1000 player-hours (95%CI: 2.3, 3.6. As a consequence 69.3% neck injuries were minor, 17% mild, 6.8% moderate and 6.8% severe. Neck compression was the most frequent aetiology and was weakly associated with severity. Cervical facet injury was the most frequent neck injury type. Conclusions This is the first prospective cohort study in an amateur men's rugby union population since the inception of professionalism that presents injury rate, severity, aetiology and injury type data for neck injury. Current epidemiological data should be sought when evaluating the risks associated with rugby union football.

  4. Wearable technology smart watches to Google Glass for libraries

    CERN Document Server

    Bruno, Tom

    2015-01-01

    Emerging devices are placing powerful computing abilities into the wardrobes of consumers through wearable technology which combines fashion and function in new and exciting ways. The most recognizable of these emerging gadgets is Google Glass. Wearable Technology: Smart Watches to Google Glass for Libraries provides a comprehensive overview of the current wearable technology landscape, the types of devices and functionality available, the benefits and limitations of this type of technology, and how you can make use of it in yo

  5. Understanding Zora Neale Hurston's Their Eyes Were Watching God

    Directory of Open Access Journals (Sweden)

    Tatjana Vukelić

    2007-12-01

    Full Text Available The work of Zora Neale Hurston, in particular, the novel Their Eyes Were Watching God, has been the object of more than a decade of critical attention. But, in addition to the critical consideration of Hurston's writings, her work has received the level of institutional support necessary for Hurston to enter the American literary mainstream. The article addresses the issue of black women literary tradition and the search for freedom and identity in the white American social and cultural environment.

  6. Healthcare Applications of Smart Watches. A Systematic Review.

    Science.gov (United States)

    Lu, Tsung-Chien; Fu, Chia-Ming; Ma, Matthew Huei-Ming; Fang, Cheng-Chung; Turner, Anne M

    2016-09-14

    The aim of this systematic review is to synthesize research studies involving the use of smart watch devices for healthcare. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) was chosen as the systematic review methodology. We searched PubMed, CINAHL Plus, EMBASE, ACM, and IEEE Xplore. In order to include ongoing clinical trials, we also searched ClinicalTrials.gov. Two investigators evaluated the retrieved articles for inclusion. Discrepancies between investigators regarding article inclusion and extracted data were resolved through team discussion. 356 articles were screened and 24 were selected for review. The most common publication venue was in conference proceedings (13, 54%). The majority of studies were published or presented in 2015 (19, 79%). We identified two registered clinical trials underway. A large proportion of the identified studies focused on applications involving health monitoring for the elderly (6, 25%). Five studies focused on patients with Parkinson's disease and one on cardiac arrest. There were no studies which reported use of usability testing before implementation. Most of the reviewed studies focused on the chronically ill elderly. There was a lack of detailed description of user-centered design or usability testing before implementation. Based on our review, the most commonly used platform in healthcare research was that of the Android Wear. The clinical application of smart watches as assistive devices deserves further attention. Smart watches are unobtrusive and easy to wear. While smart watch technology supplied with biosensors has potential to be useful in a variety of healthcare applications, rigorous research with their use in clinical settings is needed.

  7. Connected to TV series: Quantifying series watching engagement.

    Science.gov (United States)

    Tóth-Király, István; Bőthe, Beáta; Tóth-Fáber, Eszter; Hága, Győző; Orosz, Gábor

    2017-12-01

    Background and aims Television series watching stepped into a new golden age with the appearance of online series. Being highly involved in series could potentially lead to negative outcomes, but the distinction between highly engaged and problematic viewers should be distinguished. As no appropriate measure is available for identifying such differences, a short and valid measure was constructed in a multistudy investigation: the Series Watching Engagement Scale (SWES). Methods In Study 1 (N Sample1  = 740 and N Sample2  = 740), exploratory structural equation modeling and confirmatory factor analysis were used to identify the most important facets of series watching engagement. In Study 2 (N = 944), measurement invariance of the SWES was investigated between males and females. In Study 3 (N = 1,520), latent profile analysis (LPA) was conducted to identify subgroups of viewers. Results Five factors of engagement were identified in Study 1 that are of major relevance: persistence, identification, social interaction, overuse, and self-development. Study 2 supported the high levels of equivalence between males and females. In Study 3, three groups of viewers (low-, medium-, and high-engagement viewers) were identified. The highly engaged at-risk group can be differentiated from the other two along key variables of watching time and personality. Discussion The present findings support the overall validity, reliability, and usefulness of the SWES and the results of the LPA showed that it might be useful to identify at-risk viewers before the development of problematic use.

  8. Fall Detection Using Commodity Smart Watch and Smart Phone

    OpenAIRE

    Maglogiannis , Ilias; Ioannou , Charalampos; Spyroglou , George; Tsanakas , Panayiotis

    2014-01-01

    Part 3: Social Media and Mobile Applications of AI; International audience; Human motion data captured from wearable devices such as smart watches can be utilized for activity recognition or emergency event detection, especially in the case of elderly or disabled people living independently in their homes. The output of such sensors is data streams that require real-time recognition, especially in emergency situations. This paper presents a novel application that utilizes the low-cost Pebble ...

  9. Strategic and operational information watch newsletter nr 2

    International Nuclear Information System (INIS)

    2017-02-01

    This newsletter proposes an overview of events related to security and defence issues in relationship with impacts of climate change. A first part reports a strategic watch which addresses news about the responsibility of climate changes in the emergence or aggravation of some present crisis, about what is going on in the USA in relationship with climate and defence issues (decisions by Trump, statement of the Secretary of Defence, influence of the political context), about the energy sector (instability of the oil market, the international role of India in the international climate and energy policy), and about international negotiations on climate. The second part reports an operational information watch addresses new technologies and renewable energies, and issues related to the vulnerability, protection and adaptation of infrastructures and equipment, and a health watch (soldier training in hot and wet environment, drought as a factor of Nile fever epidemic, climate changes and always higher risks for human health in Europe). The newsletter finally indicates some brief news, events and recent publications

  10. Strategic and operational information watch newsletter nr 3

    International Nuclear Information System (INIS)

    2017-04-01

    This newsletter proposes an overview of events related to security and defence issues in relationship with impacts of climate change. A first part reports a strategic watch which addresses news about the Paris agreement (negotiation in Bonn, statement of the Canadian minister of Defence, commitment by the Lebanese army to reduce its emissions), about the energy sector (the lowest level of oil discovery, partial privatisation of Saudi Aramco, and economic and energetic diversification of Saudi Arabia), and climate change as a source of tensions and collaborations. The second part reports an operational information watch which addresses new technologies and renewable energies (photovoltaic cells operating in the dark, waste energetic valorisation in field operations, the issue of energy security for US military allowances, use of drones for logistics, a Gripen fighter aircraft flies with bio-fuel) and proposes a health watch (consequences of UV exposure in field operations, impact of El Nino on cholera distribution in Africa, the ban of ragweed in France). The newsletter finally indicates some brief news, events and recent publications

  11. An analysis of CCD images of the coma of Comet Halley. Final report, October 1989-September 1990

    International Nuclear Information System (INIS)

    Combi, M.

    1990-12-01

    The analysis of selected CCD images of the coma of comet P/Halley is presented. The images were taken using specially designed filters that isolate regions of a comet's spectrum such that only sunlight which has been scattered by the dust in the coma is recorded. The modeling analysis objective is to make use of the skills developed in the development of Monte Carlo particle trajectory models for the distributions of gas species in cometary comae and to use those models as a basis for a new dust coma model. This model will include a self-consistant picture of the time-dependent dusty-gas dynamics of the inner coma and the three-dimensional time-dependent trajectories of the dust particles under the influence of solar gravity and solar radiation pressure in the outer coma. The model is intended to be used as a tool to analyze selected images from the two sets of CCD images with the hope that it will help the understanding of the effects of a number of important processes on the spatial morphology of the observed dust coma. The processes of importance to the observed dust coma include: (1) the dust particle size distribution function; (2) the terminal velocities of various sized dust particles in the inner coma; (3) the radiation scattering properties of dust particles, which are important both in terms of the observe scattered radiation and the radiation pressure acceleration on dust particles; (4) the fragmentation and/or vaporization of dust particles; and (5) the relative importance of CHON and silicate dust particles as they contribute both to the dusty-gasdynamics in the inner coma (that produce the dust particle terminal velocities) and to the observed spatial morphology on the outer dust coma

  12. Discovery of KPS-1b, a Transiting Hot-Jupiter, with an Amateur Telescope Setup (Abstract)

    Science.gov (United States)

    Benni, P.; Burdanov, A.; Krushinsky, V.; Sokov, E.

    2018-06-01

    (Abstract only) Using readily available amateur equipment, a wide-field telescope (Celestron RASA, 279 mm f/2.2) coupled with a SBIG ST-8300M camera was set up at a private residence in a fairly light polluted suburban town thirty miles outside of Boston, Massachusetts. This telescope participated in the Kourovka Planet Search (KPS) prototype survey, along with a MASTER-II Ural wide field telescope near Yekaterinburg, Russia. One goal was to determine if higher resolution imaging ( 2 arcsec/pixel) with much lower sky coverage can practically detect exoplanet transits compared to the successful very wide-field exoplanet surveys (KELT, XO, WASP, HATnet, TrES, Qatar, etc.) which used an array of small aperture telescopes coupled to CCDs.

  13. Influencia de variables psicológicas en el rendimiento de jugadores amateurs de golf

    Directory of Open Access Journals (Sweden)

    Susana Irazusta

    2006-01-01

    Full Text Available El propósito de la presente investigación es analizar las variaciones del estado de ánimo intracompetición en los jugadores amateurs de golf, así como analizar la influencia que tiene el grado de confianza y otras variables motivacionales en el resultado de la competición. Se realizó la investigación con un total de 296 jugadores y se pasaron los cuestionarios a cada jugador en tres momentos, antes, durante y después de la competición.Una vez analizados los datos se constató que existen grandes fluctuaciones en el estado de ánimo de los jugadores y que el resultado esperado sufre modificaciones a lo largo de la competición.

  14. Écrivaines amateurs et écritures biographiques en ateliers d’écriture

    OpenAIRE

    Faure, Sylvia

    2017-01-01

    L’article propose d’interroger les écritures « de soi » d’écrivaines amateures produites dans le cadre des ateliers d’écriture. Les interactions dans ces groupes sont agencées selon des principes de « bienveillance » et « d’écoute » mutuelle, qui encouragent l’expression des sentiments et légitiment de « parler de soi » en ayant le « souci de faire littéraire ». Il ne s’agit pas d’apprendre scolairement ce que « faire littéraire veut dire », mais de s’en saisir de manière pratique, par imprég...

  15. Comparative analysis of competitive activity parameters of amateur boxers high qualification

    Directory of Open Access Journals (Sweden)

    V.P. Martsiv

    2014-12-01

    Full Text Available Purpose : analyze competitive activity of boxers of high qualifications in different time periods in the development of boxing. Material : 142 analyzed boxing matches at the Olympic Games 2012. Results : present indicators of competitive activity of boxers. Shows the comparative characteristics of the battles that took place under different formulas of competitive activity in different periods of the development of amateur boxing. It is shown that increasing the skills of athletes appear to increase the density of hits in combat. As a result of innovations in the rules of the competition, boxing match was different higher intensity combat, attacking actions began to perform at a higher speed mode. Conclusions : As a result of the transition to the new formula of fighting to increase the density of the match. Also a 3-fold increase in the number of strikes indicator, surviving on target. Increased efficiency factor strikes, which leads to the expansion of effective technical and tactical actions.

  16. A prospective controlled investigation of the cognitive effects of amateur boxing.

    Science.gov (United States)

    Butler, R J; Forsythe, W I; Beverly, D W; Adams, L M

    1993-01-01

    Eighty six amateur boxers underwent a series of neuropsychological assessments on three occasions--pre bout, immediate post bout and follow up within two years; 31 water polo players and 47 rugby union players acted as controls. The neuropsychological tests were selected as being sensitive to subtle cognitive dysfunction and formed part of a battery of other neurological and ophthalmic assessments. No evidence of neuropsychological dysfunction due to boxing was found, either following a bout or a series of bouts at follow up. None of a range of parameters including number of previous contests, recovery from an earlier bout, number of head blows received during a bout and number of bouts between initial assessment and follow up, were found to be related to changes in cognitive functioning. PMID:8410002

  17. Effect of Kinesiotape Applications on Ball Velocity and Accuracy in Amateur Soccer and Handball.

    Science.gov (United States)

    Müller, Carsten; Brandes, Mirko

    2015-12-22

    Evidence supporting performance enhancing effects of kinesiotape in sports is missing. The aims of this study were to evaluate effects of kinesiotape applications with regard to shooting and throwing performance in 26 amateur soccer and 32 handball players, and to further investigate if these effects were influenced by the players' level of performance. Ball speed as the primary outcome and accuracy of soccer kicks and handball throws were analyzed with and without kinesiotape by means of radar units and video recordings. The application of kinesiotapes significantly increased ball speed in soccer by 1.4 km/h (p=0.047) and accuracy with a lesser distance from the target by -6.9 cm (p=0.039). Ball velocity in handball throws also significantly increased by 1.2 km/h (p=0.013), while accuracy was deteriorated with a greater distance from the target by 3.4 cm (p=0.005). Larger effects with respect to ball speed were found in players with a lower performance level in kicking (1.7 km/h, p=0.028) and throwing (1.8 km/h, p=0.001) compared with higher level soccer and handball players (1.2 km/h, p=0.346 and 0.5 km/h, p=0.511, respectively). In conclusion, the applications of kinesiotape used in this study might have beneficial effects on performance in amateur soccer, but the gain in ball speed in handball is counteracted by a significant deterioration of accuracy. Subgroup analyses indicate that kinesiotape may yield larger effects on ball velocity in athletes with lower kicking and throwing skills.

  18. Incidence, Epidemiology and Etiology of Injuries, in a Spanish Amateur Football Club

    Directory of Open Access Journals (Sweden)

    Eduardo Esteban-Zubero

    2015-11-01

    Full Text Available Background: Playing football, both at the amateur and professional level, associates an increased risk of injury. A documented report on injury location, type and incidence, in correlation with sports intensity, professionalism level and age, would be of support for implementing preventing measures and appropriate training programs, to reduce the incidence of football related injury. Objectives: This study aimed to assess the incidence, type and location of injuries during one season, in an amateur football club and design strategies and preventive measures. Patients and Methods: A population of 308 players were studied, aged between 5 and 29 years old (20 subjects over-19, 38 under-19, 38 under-16, 57 under-14, 57 under-12, 44 under-10 and 54 under-8 years old, respectively distributed over 20 teams. In total, 339 cases of injury occurred. Results: The population injured the most was the under-19 group and the most prevalent type of injuries was muscular (40.7% and ligament (16.5%. The most common location was the lower limbs (78.6% and, specifically, the thigh (39.8%. Physical load periods (September and February were highlighted as the months of highest incidence and the average number of visits per injury was 1.34. A statistically significant relationship between hours of training and injuries was noted. Conclusions: In the literature, there are similar publications, who studied these variables, separately. This work provides us with a certain amount of descriptive results, which may serve as a model for future research projects, performing interventions by coaches and medical services of football clubs, to reduce the injuries incidence, especially in the months of greatest physical load and, therefore, improve the performance. Football is a safe sport to practice, at any age, because injuries, regularly, are not serious and it is highly recommended, given the amount of health benefits obtained.

  19. Amateur Planetary Radio Data Archived for Science and Education: Radio Jove

    Science.gov (United States)

    Thieman, J.; Cecconi, B.; Sky, J.; Garcia, L. N.; King, T. A.; Higgins, C. A.; Fung, S. F.

    2015-12-01

    The Radio Jove Project is a hands-on educational activity in which students, teachers, and the general public build simple radio telescopes, usually from a kit, to observe single frequency decameter wavelength radio emissions from Jupiter, the Sun, the galaxy, and the Earth usually with simple dipole antennas. Some of the amateur observers have upgraded their receivers to spectrographs and their antennas have become more sophisticated as well. The data records compare favorably to more sophisticated professional radio telescopes such as the Long Wavelength Array (LWA) and the Nancay Decametric Array. Since these data are often carefully calibrated and recorded around the clock in widely scattered locations they represent a valuable database useful not only to amateur radio astronomers but to the professional science community as well. Some interesting phenomena have been noted in the data that are of interest to the professionals familiar with such records. The continuous monitoring of radio emissions from Jupiter could serve as useful "ground truth" data during the coming Juno mission's radio observations of Jupiter. Radio Jove has long maintained an archive for thousands of Radio Jove observations, but the database was intended for use by the Radio Jove participants only. Now, increased scientific interest in the use of these data has resulted in several proposals to translate the data into a science community data format standard and store the data in professional archives. Progress is being made in translating Radio Jove data to the Common Data Format (CDF) and also in generating new observations in that format as well. Metadata describing the Radio Jove data would follow the Space Physics Archive Search and Extract (SPASE) standard. The proposed archive to be used for long term preservation would be the Planetary Data System (PDS). Data sharing would be achieved through the PDS and the Paris Astronomical Data Centre (PADC) and the Virtual Wave Observatory (VWO

  20. Injuries in Portuguese Amateur Youth Football Players: A Six Month Prospective Descriptive Study.

    Science.gov (United States)

    Nogueira, Miguel; Laiginhas, Rita; Ramos, José; Costa, Ovídio

    2017-12-29

    This study analyzed the incidence and characteristics of injuries sustained by amateur youth football players in Portugal during season 2015 - 2016. This is an observational descriptive study. We analyzed Portuguese youth football players' injuries over six months of a season. A total of 529 players were divided according to their age in two groups (Under-17 and Under-19). Data on injuries were collected. Throughout all 62 062.0 hours of exposure recorded, 248 injuries were reported in 173 different players. The average incidence of injury was 3.87 (95% CI = 2.81; 4.94) per 1000 hours of football exposure. There was a significantly higher average incidence of injury during matches - 14.22 (95% CI = 10.35; 18.09) per 1000 hours of exposure - when compared to the average incidence of injury during training - 2.06 (95% CI = 1.22; 2.90) per 1000 hours of exposure. This significance was also observed when the comparison was made within each age group. A traumatic mechanism was involved in 76.6% of all the injuries, while overuse was reported in 12.9%. The most common type was the injury that affected muscles and tendons (52.8%). The body location most commonly affected by injuries was the thigh (24.6%). Even though is essential a better characterization of Portuguese athletes of younger age groups such as those discussed in this study, the results of the studied population are in agreement with the existing literature. However, this study provides more information that may be important to better target the Portuguese athletes' training for injury prevention. This study provides descriptive data on injuries developed in a subpopulation of Portuguese amateur youth football players that could represent a focus for future prevention.

  1. Estimated VO2max and its corresponding velocity predict performance of amateur runners

    Directory of Open Access Journals (Sweden)

    Bruno Ribeiro Ramalho Oliveira

    2012-03-01

    Full Text Available In recent years, there has been a substantial increase in the number of runners, with a proportional increase in their involvement in amateur street competition. Identification of the determinants of performance in this population appears necessary for optimization of time devoted to training. The objective of this study was to ascertain the association between estimated maximal oxygen uptake (VO2max, critical velocity (CV and VO2max velocity (VVO2max and athletic performance in the 3.6 km (uphill and 10 and 21.1 km (flatland events. Twelve amateur runners (nine male, mean age 36 ± 5 years underwent five tests: 1 and 5 km race on level ground, 3.6 km race with slope (≈8%, and indirect VO2max measurement. CV was determined from the linear relationship between distance and run time on the first two tests. The subjects then took part in two official 10 km and 21.1 km (half marathon races. VVO2max was calculated from the VO2max through a metabolic equation. VO2max showed the best association with running performance in the 10 and 21.1 km events. For the uphill race, VVO2max showed a better association. Overall, the variable with the highest average association was VO2max (0.91±0.07, followed by VVO2max (0.90±0.04 and VC (0.87±0.06. This study showed strong associations between physiological variables established by low-cost, user-friendly indirect methods and running performance in the 10 and 21.1 km (flatland and 3.6 km (uphill running events.

  2. Infrared observations of an outburst of small dust grains from the nucleus of Comet P/Halley 1986 III at perihelion

    Science.gov (United States)

    Gehrz, R. D.; Johnson, C. H.; Magnuson, S. D.; Ney, E. P.; Hayward, T. L.

    1995-01-01

    A close examination of the 0.7- to 23-micron infrared data base acquired by Gehrz and Ney (1992), suggests that the nucleus of Comet P/Halley 1986 III emitted a burst of small dust grains during a 3-day period commencing within hours of perihelion passage on 1986 February 9.46 UT. The outburst was characterized by significant increases in the coma's grain color temperature T(sub obs), temperature excess (superheat: S = T(sub obs)/T(sub BB)), infrared luminosity, albedo, and 10-micron silicate emission feature strength. These changes are all consistent with the sudden ejection from the nucleus of a cloud of grains with radii of approximately 0.5 micron. This outburst may have produced the dust that was responsible for some of the tail streamers photographed on 1986 February 22 UT. The peak of the dust outburst occurred about 3 days before a pronounced increase in the water production rate measured by the Pioneer Venus Orbiter Ultraviolet Spectrometer. We suggest that jets that release large quantities of small particles may be largely responsible for some of the variable infrared behavior that has been reported for P/Halley and other comets during the past two decades. Such jets may also account for some of the differences IR Type I and IR Type II comets.

  3. Application of radioisotope for radio-luminous watch and clock industry in Japan

    International Nuclear Information System (INIS)

    Murayama, Yoshihiko

    1981-01-01

    In 1979, Japan became No. 1 watch and clock production country in the world, and has produced 88 million watches and 59 million clocks in 1980. About 65% of them were exported. The production of radio-luminous watches and clocks in 1980 was estimated as 13 million and 11 million, respectively, and has increased by 40% as compared with the previous year. In Japan, the law concerning the prevention of radiation injuries due to radioisotopes and others is applied to radio-luminous watches and clocks, because radioactive substances are contained in luminous paint, and the production is regulated by the law as unsealed RI-using establishments. The permitted establishments engaging in radio-luminous watches and clocks are 3 luminous paint makers, 9 painting works and 35 watch and clock assembling plants. The RI utilized for radio-luminous watches and clocks is limited to Pm-147 at present, and 3788 Ci was used in 1980. About 70 years have elapsed since luminous paint was used for watches and clocks for the first time. The ISO instituted the international standard on radio-luminous paint for watches and clocks in 1975. The beta-ray emitted by Pm-147 is shielded perfectly by glasses and cases, and only the dose of brems-strahlung X-ray is the problem. The radiation control in radio-luminous watch and clock plants is described. (Kako, I.)

  4. ALiEM Blog and Podcast Watch: Toxicology.

    Science.gov (United States)

    Zaver, Fareen; Craddick, Michael; Sanford, Audrey; Sefa, Nana; Hughes, George; Lin, Michelle

    2017-10-01

    The WestJEM Blog and Podcast Watch presents high-quality open-access educational blogs and podcasts in emergency medicine based on the ongoing Academic Life in Emergency Medicine (ALiEM) Approved Instructional Resources (AIR) and AIR-Professional (Pro) series. Both series critically appraise open-access educational blogs and podcasts in EM using an objective scoring instrument. This installment of the blog and podcast watch series curated and scored relevant posts in the specific topic of toxicology emergencies from the AIR-Pro Series. The AIR-Pro Series is a continuously building curriculum covering a new subject area every two months. For each area, eight EM chief residents identify 3-5 advanced clinical questions. Using FOAMsearch.net and FOAMSearcher to search blogs and podcasts, relevant posts are scored by eight reviewers from the AIR-Pro editorial board, which is comprised of EM faculty and chief residents at various institutions across North America. The scoring instrument contains five measurement outcomes based on seven-point Likert scales: recency, accuracy, educational utility, evidence based, and references. The AIR-Pro label is awarded to posts with a score of ≥28 (out of 35) points. An "honorable mention" label is awarded if board members collectively felt that the blogs were valuable and the scores were > 25. A total of 31 blog posts and podcasts were included. Key educational pearls from the six high-quality AIR-Pro posts and four honorable mentions are summarized. The WestJEM ALiEM Blog and Podcast Watch series is based on the AIR and AIR-Pro Series, which attempts to identify high-quality educational content on open-access blogs and podcasts. This series provides an expert-based, crowdsourced approach towards critically appraising educational social media content for EM clinicians. This installment focuses on toxicology emergencies.

  5. Heterogeneity in time and energy use of watching television

    International Nuclear Information System (INIS)

    Sekar, Ashok; Williams, Eric; Chen, Roger

    2016-01-01

    There is substantial variability in residential energy use, partly driven by heterogeneous behavioral patterns. Time-use is relevant to energy when consumption tracks the time a device is used. Cluster analysis is a promising approach to identify time-use patterns. If clusters with particularly long time use and thus high energy consumption emerge, these groups could merit targeted policy intervention. We investigate these ideas via an empirical study of time use for television watching in the U.S. Three clusters were identified. In 2013, the average time spent watching television by Clusters 1, 2 and 3 are dramatically different: 1.1, 3.5 and 7.7 h per day respectively. While members of Cluster 3 are only 14% of the total population they represent 34% of TV energy consumption. The population of Cluster 3 tends to be older, less employed and less educated. Energy savings per adopter is much larger for Cluster 3, suggesting much higher benefits from efficient devices. These results are relevant to the design of efficiency programs, indicating potential for variable rebates and/or tiered communication. With variable rebates, utilities would offer higher incentives to high-use customers. In tiered communication, utilities would devote more resources to engage customers with larger savings potential. - Highlights: •Utility and other efficiency programs often treat consumers as homogenous groups. •Heterogeneity in consumer behavior affects benefits/costs of efficiency upgrade. •Significant heterogeneity is found in U.S. television watching patterns. •Heavy watchers (7.7 h/day) are 14% of population but consume 34% of energy. •Energy savings of efficient television for heavy watcher is 3 times the average.

  6. Gamma-ray bursts observed by the watch experiment

    DEFF Research Database (Denmark)

    Lund, Niels; Brandt, Søren; Castro-Tirado, A. J.

    1991-01-01

    After two years in orbit the WATCH instruments on the GRANAT space observatory have localized seven gamma burst sources with better than 1° accuracy. In several cases, follow‐up observations with Schmidt telescopes have been made within a few days. Some of the bursts have also been detected...... by the distant space probes PVO and ULYSSES and there are, therefore, good prospects for obtaining much improved positions using the burst arrival times. The existence of the almost concurrent Schmidt plates could then become particularly interesting....

  7. Cinema as a site of memory: thoughts from amateur Super-8 films re-edited in the short film 'Supermemórias'

    Directory of Open Access Journals (Sweden)

    Maíra Magalhães Bosi

    2016-07-01

    Full Text Available This paper aims to study amateur films, made in a private context, as a powerful way of creating memory. To do so, we first present a theoretical analisys on the idea of “sites os memory” (Nora 1984 and also on the desire to protect memory, that calls to action the amateur filmmaker. At least, we analyze two Super-8 amateur films produced in Fortaleza (Brazil, in 1978, which were re-edited in the short movie Supermemorias (Danilo Carvalho, 2010. This analysis evidences to us the editing process as a way of constructing new sites of memory and also allow us to reafirm that the amateur film production can instigate interesting and relevant contemporary investigations.

  8. Increased CSF levels of phosphorylated neurofilament heavy protein following bout in amateur boxers.

    Directory of Open Access Journals (Sweden)

    Sanna Neselius

    Full Text Available INTRODUCTION: Diagnosis of mild TBI is hampered by the lack of imaging or biochemical measurements for identifying or quantifying mild TBI in a clinical setting. We have previously shown increased biomarker levels of protein reflecting axonal (neurofilament light protein and tau and glial (GFAP and S-100B damage in cerebrospinal fluid (CSF after a boxing bout. The aims of this study were to find other biomarkers of mild TBI, which may help clinicians diagnose and monitor mild TBI, and to calculate the role of APOE ε4 allele genotype which has been associated with poor outcome after TBI. MATERIALS AND METHODS: Thirty amateur boxers with a minimum of 45 bouts and 25 non-boxing matched controls were included in a prospective cohort study. CSF and blood were collected at one occasion between 1 and 6 days after a bout, and after a rest period for at least 14 days (follow up. The controls were tested once. CSF levels of neurofilament heavy (pNFH, amyloid precursor proteins (sAPPα and sAPPβ, ApoE and ApoA1 were analyzed. In blood, plasma levels of Aβ42 and ApoE genotype were analyzed. RESULTS: CSF levels of pNFH were significantly increased between 1 and 6 days after boxing as compared with controls (p<0.001. The concentrations decreased at follow up but were still significantly increased compared to controls (p = 0.018. CSF pNFH concentrations correlated with NFL (r =  0.57 after bout and 0.64 at follow up, p<0.001. No significant change was found in the other biomarkers, as compared to controls. Boxers carrying the APOE ε4 allele had similar biomarker concentrations as non-carriers. CONCLUSIONS: Subconcussive repetitive trauma in amateur boxing causes a mild TBI that may be diagnosed by CSF analysis of pNFH, even without unconsciousness or concussion symptoms. Possession of the APOE ε4 allele was not found to influence biomarker levels after acute TBI.

  9. Performance Aspects and Physiological Responses in Male Amateur Boxing Competitions: A Brief Review.

    Science.gov (United States)

    Slimani, Maamer; Chaabène, Helmi; Davis, Philip; Franchini, Emerson; Cheour, Foued; Chamari, Karim

    2017-04-01

    Slimani, M, Chaabène, H, Davis, P, Franchini, E, Cheour, F, and Chamari, K. Performance aspects and physiological responses in male amateur boxing competitions: a brief review. J Strength Cond Res 31(4): 1132-1141, 2017-Boxing is one of the most popular striking combat sports in the world. The aim of this review was to present data concerning performance analysis (time-motion and technical-tactical analysis) and physiological responses (i.e., blood lactate concentration [BLC], heart rate, and oxygen consumption) during novice and elite male simulated and official amateur boxing competitions in any age category. The present review shows that boxing competition is a high-intensity intermittent striking combat sport. Typically, the activity-to-rest ratio was higher in elite (18:1) than in novice (9:1) boxers and significant differences were observed between rounds (first round = 16:1, second round = 8:1, and third round = 6:1) in novice boxers. Thus, total stop-time and total stop-frequency increased over subsequent rounds in novice boxers. The technical-tactical aspects in elite and novice boxing bouts were different between rounds and dependent on the match outcome (i.e., winners vs. losers). Particularly, the current review highlights that triple-punch combinations, total combinations, block- and counter-punch combinations, total punches to the head, technical performance effectiveness, and defensive- and offensive-skills effectiveness may have contributed to win in novice and elite boxing competitions. Higher frequencies of technical movements were also observed in elite compared with novice boxers. From a physiological point of view, BLC increased significantly from postround 1 compared with postround 3 in novice boxing match. BLC was also higher in official than in simulated elite boxing matches in senior compared with junior boxers and in medium heavy-weight category compared with light- and medium-weight categories in junior boxing competition. A higher

  10. Spectral atlas for amateur astronomers a guide to the spectra of astronomical objects and terrestrial light sources

    CERN Document Server

    Walker, Richard

    2017-01-01

    Featuring detailed commented spectral profiles of more than one hundred astronomical objects, in colour, this spectral guide documents most of the important and spectroscopically observable objects accessible using typical amateur equipment. It allows you to read and interpret the recorded spectra of the main stellar classes, as well as most of the steps from protostars through to the final stages of stellar evolution as planetary nebulae, white dwarfs or the different types of supernovae. It also presents integrated spectra of stellar clusters, galaxies and quasars, and the reference spectra of some terrestrial light sources, for calibration purposes. Whether used as the principal reference for comparing with your recorded spectra or for inspiring independent observing projects, this atlas provides a breathtaking view into our Universe's past. The atlas is accompanied and supplemented by Spectroscopy for Amateur Astronomers, which explains in detail the methods for recording, processing, analysing and interp...

  11. Effect of 48 h Fasting on Autonomic Function, Brain Activity, Cognition, and Mood in Amateur Weight Lifters

    Science.gov (United States)

    Skurvydas, Albertas

    2016-01-01

    Objectives. The acute fasting-induced cardiovascular autonomic response and its effect on cognition and mood remain debatable. Thus, the main purpose of this study was to estimate the effect of a 48 h, zero-calorie diet on autonomic function, brain activity, cognition, and mood in amateur weight lifters. Methods. Nine participants completed a 48 h, zero-calorie diet program. Cardiovascular autonomic function, resting frontal brain activity, cognitive performance, and mood were evaluated before and after fasting. Results. Fasting decreased (p Fasting decreased (p Fasting also increased (p fasting resulted in higher parasympathetic activity and decreased resting frontal brain activity, increased anger, and improved prefrontal-cortex-related cognitive functions, such as mental flexibility and set shifting, in amateur weight lifters. In contrast, hippocampus-related cognitive functions were not affected by it. PMID:28025637

  12. Differences in the performance tests of the fast and slow stretch and shortening cycle among professional, amateur and elite youth soccer players

    OpenAIRE

    Keiner, Michael; Sander, Andre; Wirth, Klaus; Hartmann, Hagen

    2015-01-01

    The purpose of this study was to establish whether physical attributes can differentiate between professional, amateur and elite youth soccer players; such a distinction could aid in the selection process for youth soccer. Therefore, this investigation evaluated a suspected difference in the performance tests of the slow and fast stretch and the shortening cycle (squat jump [SJ], countermovement jump [CMJ], and drop jump from varying heights [DJ]) among professional, amateur and elite youth s...

  13. Contact urticaria caused by the Apple Watch – A case report

    OpenAIRE

    Spencer D. Hawkins; Steven R. Feldman

    2017-01-01

    Smart watches are an upcoming trend that provide quick access to smartphone notifications on the wearer’s wrist. Metal portions of the Apple Watch contain small amounts of nickel, however, the interchangeable bands can be made of a variety of different materials including methacrylate polymers and fluoroelastomer synthetic rubber. There are multiple reports in non-peer reviewed literature such as social media and blogs of the Apple Watch causing skin irritation. Here we present a case report ...

  14. VizieR Online Data Catalog: WATCH Solar X-Ray Burst Catalogue (Crosby+ 1998)

    Science.gov (United States)

    Crosby, N.; Lund, N.; Vilmer, N.; Sunyaev, R.

    1998-01-01

    Catalogue containing solar X-ray bursts measured by the Danish Wide Angle Telescope for Cosmic Hard X-Rays (WATCH) experiment aboard the Russian satellite GRANAT in the deca-keV energy range. Table 1 lists the periods during which solar observations with WATCH are available (WATCH ON-TIME) and where the bursts listed in the catalogue have been observed. (2 data files).

  15. 3 keys to defeating unconscious bias watch, think, act

    CERN Document Server

    Thiederman, Sondra

    2015-01-01

    Have you ever had a biased thought? If the answer is “yes,” join the club. Everybody has biases and, although that doesn’t make us bad people, it does mean we compromise our ability to get along with people who are different from us. The good news is, there’s a lot we can do to defeat bias. Calling on Dr. Sondra Thiederman’s twenty-five years of experience in the diversity/inclusion field, the book lays out an innovative WATCH, THINK, ACT strategy that each of us can immediately apply to the task. Easy-to-read and filled with anecdotes and activities, 3 Keys shows the reader: • How to WATCH their thoughts, experiences, and actions to identify unconscious biases and target them for extinction. • How to THINK in such a way as to weaken and control our biases. • How to ACT to defeat our biases and cultivate the kind of common ground that we know to be inhospitable to the survival of bias. Designed to motivate real change, the answer to defeating our biases is in these pages. The rest is up to you...

  16. Strategic and operational information watch newsletter nr 1

    International Nuclear Information System (INIS)

    2016-12-01

    This newsletter proposes an overview of events related to security and defence issues in relationship with impacts of climate change. A first part reports a strategic watch which addresses the following topics: the environment taken into account by the International Criminal Court, impacts of climate change on tensions about rural estate in Africa, resolution of the European Parliament on the European Union of Defence, environmental and energy strategy of the Danish Ministry of Defence, COP22 in Marrakech, and so on. The second part reports an operational information watch addresses the threat on the US DoD environmental agenda by the new Trump administration, the adaptation of US forces to climate changes, the threat of climate change on US DoD infrastructures, a US base self-sufficient in energy, NATO actions for energy efficiency, thermal regulation improvement for soldiers, impact of El Nino on the propagation of the Zika virus, launching of the Lancet countdown. The newsletter finally indicates some brief news, events and recent publications

  17. The Australian Constitution and the Aid/Watch Case

    Directory of Open Access Journals (Sweden)

    George Williams

    2011-11-01

    Full Text Available The Australian Constitution played a significant role in underpinning the result in the Aid/Watch Case. It was invoked by the majority to support their conclusion that a body can be a ‘charitable institution’ despite engaging in political activities. The use of the Constitution in this way came as a surprise. The case extended an existing constitutional principle relating to freedom of political communication from its electoral base into the protection of the political activities of non-government organisations. This may have future ramifications for those organisations in other areas, as well as further implications for the development of what it means to be a charity in Australia. This article examines the use of the Australian Constitution in the Aid/Watch Case. It explains how the High Court was able to invoke the Constitution in defining what it means to be a ‘charitable institution’. It also examines the implications of that reasoning for the development of charitable law in Australia.

  18. NATURE VIDEO WATCHING: CONSEQUENCES ON ANGER AND ANXIETY

    Directory of Open Access Journals (Sweden)

    Nicoleta Răban-Motounu

    2017-12-01

    Full Text Available Extensive research has been conducted on the effects of natural environment on people’s well-being, starting with the short term restoring effects on the brain, and continuing with the long-term effects on the emotional self-regulating processes. In the present research we have focused on the latter, trying to connect two of the problems in our world: the violent behavior, and the preservation of natural environment. Thus, the objective was to study the effects of watching a video from nature wild life on anger (the feeling and its expression, and state-anxiety. The statistical analysis indicated that, while there were no significant differences regarding anxiety (worry, internal tension or general mechanisms in dealing with fury, watching the video significantly decreased the feeling of anger, and the tendency to express it either verbally or physically. As a main conclusion we highlight the link between the accessibility of natural environment, and the violent expressions of anger.

  19. Conference report. Women's perspectives: keeping a close watch.

    Science.gov (United States)

    Datta, B

    1994-01-01

    Most individuals in the women's movement are happy with the accomplishments of the 1994 International Conference on Population and Development (ICPD). Activists were able to introduce feminist discourse into world governments and have a term like "gender equality" used as freely as "mother's milk." Some women, however, critique that the conference will do little to empower women in any real sense. Whatever the long-term effects, it is clear that women and women's groups were required to put aside their confrontational politics and adopt a more organized, collaborative approach. The Women's Caucus at Cairo created Women Watching ICPD, a group to monitor if governments, donors, and service providers follow through with the commitments they made at the conference. Six nongovernmental organizations (NGO) from the North and South have already agreed to participate in the task force. The group promises to ensure an end to coercion and to make certain that positive recommendations are implemented. It will watch budgets, allocation processes, and decision makers, and try to ensure that NGOs monitoring international financial institutions make gender efforts central to their efforts.

  20. Foreign-grammar acquisition while watching subtitled television programmes.

    Science.gov (United States)

    Van Lommel, Sven; Laenen, Annouschka; d'Ydewalle, Géry

    2006-06-01

    Past research has shown that watching a subtitled foreign movie (i.e. foreign language in the soundtrack and native language in the subtitles) leads to considerable foreign-language vocabulary acquisition; however, acquisition of the grammatical rules has failed to emerge. The aim of this study was to obtain evidence for the acquisition of grammatical rules in watching subtitled foreign movies. Given an informal context, younger children were predicted to outperform older children in acquiring a foreign language; however, older children will take more advantage of explicit instruction compared with younger children. In Experiment 1, 62 sixth-graders from a primary school and 47 sixth-graders from a secondary school volunteered to participate. The participants in Experiment 2 were 94 sixth-graders from primary schools and 84 sixth-graders from secondary schools. The two experiments manipulated the instructions (incidental- vs. intentional-language learning). Moreover, before the experiments began, some participants explicitly received some of the foreign grammatical rules (presented rules), while the movie contained cases of presented rules as well as cases of rules which had to be inferred (not-presented rules). Rule acquisition through the movie only was not obtained; there was a strong effect of advance rule presentation but only on the items of presented rules, particularly among the older participants. Contrary to vocabulary, grammar may be too complicated to acquire from a rather short movie presentation.

  1. Semi-Professional Rugby League Players have Higher Concussion Risk than Professional or Amateur Participants: A Pooled Analysis.

    Science.gov (United States)

    King, Doug; Hume, Patria; Gissane, Conor; Clark, Trevor

    2017-02-01

    A combined estimate of injuries within a specific sport through pooled analysis provides more precise evidence and meaningful information about the sport, whilst controlling for between-study variation due to individual sub-cohort characteristics. The objective of this analysis was to review all published rugby league studies reporting injuries from match and training participation and report the pooled data estimates for rugby league concussion injury epidemiology. A systematic literature analysis of concussion in rugby league was performed on published studies from January 1990 to October 2015. Data were extracted and pooled from 25 studies that reported the number and incidence of concussions in rugby league match and training activities. Amateur rugby league players had the highest incidence of concussive injuries in match activities (19.1 per 1000 match hours) while semi-professional players had the highest incidence of concussive injuries in training activities (3.1 per 1000 training hours). This pooled analysis showed that, during match participation activities, amateur rugby league participants had a higher reported concussion injury rate than professional and semi-professional participants. Semi-professional participants had nearly a threefold greater concussion injury risk than amateur rugby league participants during match participation. They also had nearly a 600-fold greater concussion injury risk than professional rugby league participants during training participation.

  2. Modelling the physical multiphase interactions of HNO3 between snow and air on the Antarctic Plateau (Dome C) and coast (Halley)

    Science.gov (United States)

    Chan, Hoi Ga; Frey, Markus M.; King, Martin D.

    2018-02-01

    Emissions of nitrogen oxide (NOx = NO + NO2) from the photolysis of nitrate (NO3-) in snow affect the oxidising capacity of the lower troposphere especially in remote regions of high latitudes with little pollution. Current air-snow exchange models are limited by poor understanding of processes and often require unphysical tuning parameters. Here, two multiphase models were developed from physically based parameterisations to describe the interaction of nitrate between the surface layer of the snowpack and the overlying atmosphere. The first model is similar to previous approaches and assumes that below a threshold temperature, To, the air-snow grain interface is pure ice and above To a disordered interface (DI) emerges covering the entire grain surface. The second model assumes that air-ice interactions dominate over all temperatures below melting of ice and that any liquid present above the eutectic temperature is concentrated in micropockets. The models are used to predict the nitrate in surface snow constrained by year-round observations of mixing ratios of nitric acid in air at a cold site on the Antarctic Plateau (Dome C; 75°06' S, 123°33' E; 3233 m a.s.l.) and at a relatively warm site on the Antarctic coast (Halley; 75°35' S, 26°39' E; 35 m a.s.l). The first model agrees reasonably well with observations at Dome C (Cv(RMSE) = 1.34) but performs poorly at Halley (Cv(RMSE) = 89.28) while the second model reproduces with good agreement observations at both sites (Cv(RMSE) = 0.84 at both sites). It is therefore suggested that in winter air-snow interactions of nitrate are determined by non-equilibrium surface adsorption and co-condensation on ice coupled with solid-state diffusion inside the grain, similar to Bock et al. (2016). In summer, however, the air-snow exchange of nitrate is mainly driven by solvation into liquid micropockets following Henry's law with contributions to total surface snow NO3- concentrations of 75 and 80 % at Dome C and Halley

  3. Modeling the Physical Multi-Phase Interactions of HNO3 Between Snow and Air on the Antarctic Plateau (Dome C) and coast (Halley)

    Science.gov (United States)

    Chan, Hoi Ga; Frey, Markus M.; King, Martin D.

    2017-04-01

    Nitrogen oxides (NOx = NO + NO2) emissions from nitrate (NO3-) photolysis in snow affect the oxidising capacity of the lower troposphere especially in remote regions of the high latitudes with low pollution levels. The porous structure of snowpack allows the exchange of gases with the atmosphere driven by physicochemical processes, and hence, snow can act as both source and sink of atmospheric chemical trace gases. Current models are limited by poor process understanding and often require tuning parameters. Here, two multi-phase physical models were developed from first principles constrained by observed atmospheric nitrate, HNO3, to describe the air-snow interaction of nitrate. Similar to most of the previous approaches, the first model assumes that below a threshold temperature, To, the air-snow grain interface is pure ice and above To, a disordered interface (DI) emerges assumed to be covering the entire grain surface. The second model assumes that Air-Ice interactions dominate over the entire temperature range below melting and that only above the eutectic temperature, liquid is present in the form of micropockets in grooves. The models are validated with available year-round observations of nitrate in snow and air at a cold site on the Antarctica Plateau (Dome C, 75°06'S, 123°33'E, 3233 m a.s.l.) and at a relatively warm site on the Antarctica coast (Halley, 75°35'S, 26°39'E, 35 m a.s.l). The first model agrees reasonably well with observations at Dome C (Cv(RMSE) = 1.34), but performs poorly at Halley (Cv(RMSE) = 89.28) while the second model reproduces with good agreement observations at both sites without any tuning (Cv(RMSE) = 0.84 at both sites). It is therefore suggested that air-snow interactions of nitrate in the winter are determined by non-equilibrium surface adsorption and co-condensation on ice coupled with solid-state diffusion inside the grain. In summer, however, the air-snow exchange of nitrate is mainly driven by solvation into liquid

  4. The Prevalence of Grass Pollen-Related Allergic Rhinoconjunctivitis in Elite Amateur Irish Athletes

    LENUS (Irish Health Repository)

    Grace, M

    2016-09-01

    Allergic rhinoconjunctivitis (AR\\/C), has been shown to impact upon athletic performance. The championships of the unique, amateur Irish sports of hurling and Gaelic football (collectively known as GAA) take place during the prime pollen months of summer. Elite GAA players must perform optimally when most exposed to pollen. Elite GAA subjects (n=254) underwent skin prick testing to 6 aeroallergens and completed a validated questionnaire (AQUA), producing a score indicating likelihood of having allergy. The prevalence of allergy (positive to at least one aeroallergen on SPT and positive AQUA score) was 27.1% (n=69). Sixteen and a half percent (n=42) of the subjects tested had grass pollen AR\\/C while 22% (n=54) had house dust mite AR\\/C, though none were on standard medical therapies or had used allergen-specific immunotherapy. Grass pollen AR\\/C prevalence appears as common in elite Irish athletes as it is in other countries. It appears to be mild rather than well controlled in these subjects.

  5. Care of astronomical telescopes and accessories a manual for the astronomical observer and amateur telescope maker

    CERN Document Server

    Pepin, M Barlow

    2005-01-01

    Commercially-made astronomical telescopes are better and less expensive than ever before, and their optical and mechanical performance can be superb. When a good-quality telescope fails to perform as well as it might, the reason is quite probably that it needs a little care and attention! Here is a complete guide for anyone who wants to understand more than just the basics of astronomical telescopes and accessories, and how to maintain them in the peak of condition. The latest on safely adjusting, cleaning, and maintaining your equipment is combined with thoroughly updated methods from the old masters. Here, too, are details of choosing new and used optics and accessories, along with enhancements you can make to extend their versatility and useful lifetime. This book is for you. Really. Looking after an astronomical telescope isn't only for the experts - although there are some things that only an expert should attempt - and every serious amateur astronomer will find invaluable information here, gleaned from ...

  6. Prone Hip Extension Muscle Recruitment is Associated with Hamstring Injury Risk in Amateur Soccer.

    Science.gov (United States)

    Schuermans, Joke; Van Tiggelen, Damien; Witvrouw, Erik

    2017-09-01

    'Core stability' is considered essential in rehabilitation and prevention. Particularly with respect to hamstring injury prevention, assessment and training of lumbo-pelvic control is thought to be key. However, supporting scientific evidence is lacking. To explore the importance of proximal neuromuscular function with regard to hamstring injury susceptibility, this study investigated the association between the Prone Hip Extension (PHE) muscle activation pattern and hamstring injury incidence in amateur soccer players. 60 healthy male soccer players underwent a comprehensive clinical examination, comprising a range of motion assessments and the investigation of the posterior chain muscle activation pattern during PHE. Subsequently, hamstring injury incidence was recorded prospectively throughout a 1.5-season monitoring period. Players who were injured presented a PHE activation pattern that differed significantly from those who did not. Contrary to the controls, hamstring activity onset was significantly delayed (p=0.018), resulting in a shifted activation sequence. Players were 8 times more likely to get injured if the hamstring muscles were activated after the lumbar erector spinae instead of vice versa (p=0.009). Assessment of muscle recruitment during PHE demonstrated to be useful in injury prediction, suggesting that neuromuscular coordination in the posterior chain influences hamstring injury vulnerability. © Georg Thieme Verlag KG Stuttgart · New York.

  7. Effects of plyometric exercise training with external weights on punching ability of experienced amateur boxers.

    Science.gov (United States)

    Bruzas, Vidas; Kamandulis, Sigitas; Venckunas, Tomas; Snieckus, Audrius; Mockus, Pranas

    2018-03-01

    During competition, a boxer must continue to deliver high-impact punches despite increasing fatigue. It is unclear whether the effects of plyometric training using external weights are transferred to sport-specific movements such as punching. The aim of the study was to investigate the effects of a 4-week cycle of plyometric training with external weights on punching ability. The study involved eight male amateur boxers aged 22.3±2.5 years with at least 7 years of competitive experience. They performed 12 plyometric training sessions, each comprising eight exercises of various muscle groups performed at maximum movement velocity. Six drills were performed with external weights, and two drills were performed using the body weight as resistance. All exercises required coordination. The punching ability was tested at baseline and after the 4 weeks of training using the Kiktest-100 boxing bag. The force of single punches and the frequency of punches within a series did not change from before to after the 4 weeks, except for increased power in the rear-hand low punch (Pplyometric training with external weights did not change the maximum punching power or movement frequency significantly, but had a beneficial effect on punching power endurance in boxers.

  8. Health, physical exercise and fear of aging: anti-aging problematizations in amateur bodybuilders speeches

    Directory of Open Access Journals (Sweden)

    Fábio Luís Santos Teixeira

    2017-09-01

    Full Text Available Scientific arguments in favour of applying physical exercise as an intervention on "aging" insists on relying on the biological concept of health. Considering the hegemony of this concept in physical education, the present study questions in what extent it must be accepted that the relationship between health/aging remains summarized in the mere search for maintaining physiological capabilities? The aim was to analyse the problematizations on the relationship between health and exercise in a group of physically active women from the city of Recife, Pernambuco, Brazil, in the context of aging process. Forty-five amateur bodybuilders were selected utilizing the sample snowball technique. They answered an interview guide with pictures according to the photo elicitation technique, individually. It was utilized the speech analysis proposed by Foucault. The group understands the relationship health/aging as a way to build identities, overcoming the negative perception of old age as vital and negative process. The fear of aging denotes the presence of self-centred healthcare practices carried over the years. Physical exercise plays a role that transcends the mere control of biological variables, being a resource to strengthen the experience to look and feel younger.

  9. Concentrations of ions and metals in blood of amateur and elite runners using NAA

    International Nuclear Information System (INIS)

    Kovacs, L.; Zamboni, C.B.; Nunes, L.A.S.; Lourenco, T.F.; Macedo, D.V.

    2013-01-01

    Intense physical training is known to be associated with increased mineral losses through sweating (during the exercise) and also through urine (after the exercise). Nowadays physical training is recognized for adapting or damaging the muscles, depending on the intensity and duration of the effort, provoking detectable metabolic alterations in blood, mainly in the content of some ions. In this study Br, Ca, Cl, K, Mg, Na and S levels were investigated in blood of Brazilian athletes that were submitted to constant physical exercise, at Laboratorio de Bioquimica do Exercicio (LABEX/UNICAMP) using Neutron Activation Analyses technique (NAA). The blood samples were collected from male amateurs and elite athletes, ranging from 18 to 36 years old. The blood samples were irradiated in the nuclear reactor (IEA-R1, 3-4.5 MW, pool type) at IPEN/Sao Paulo-Brazil. The concentrations data were compared with the control group (subjects of same gender and age but not involved with physical activities). These data can be useful for evaluating the performance of endurance athletes during the period of competition preparation as well as to propose new evaluation of protocols not yet reported. (author)

  10. Association between the training loads imposed to amateur rugby sevens players and burnout syndrome

    Directory of Open Access Journals (Sweden)

    Alberto Sarly Coutinho Sobral

    2014-06-01

    Full Text Available Burnout syndrome has been shown to be increasingly prevalent in athletes, since it is related to factors that influence levels of stress during the preparation of sports. Therefore, it has been studied in several sports, but not in Rugby Seven. The aim of this study was to correlate the effects of training loads imposed on amateur Rugby Sevens players with the burnout questionnaire. Nine players (25 ± 5 years-old were evaluated before the preparatory period. Assessment included the measurement of the % fat percentage; nutritional status, stress, and aerobic power. During the preparatory period, once again, it was assessed the state of stress, aerobic power, and intensity of the training program. It was observed that there is no significant correlation between the intensity of the workout and Burnout scores (p> 0.05, nor between Burnout scores and aerobic capacity. However, there was significant a correlation between the intensity of training performed with aerobic power (p< 0.01. Therefore, it is concluded that a training program prescribed properly, prevents the onset of burnout syndrome in Rugby Sevens players.

  11. Radioastronomie d'amateur, détection de pulsars a 21 cm

    Science.gov (United States)

    Maintoux, Jean-Jacques

    2017-01-01

    Since the discovery of PSR B1919+21 in 1967, the study of radio pulsars has been so far the work of professional teams using large aperture arrays or single dish antennas. While the discovery of new pulsars is so far out of reach of amateurs astronomers with limited resources, we report the successful detection of 3 pulsars at 1420MHz with a 3.3m prime focus dish antenna, namely: B0329+54, B0950+08 and B1133+16. According to the Neutron Star list [6], this sets a new detection record given the very limited aperture of the antenna. In this paper, we expose how the sensibility and stability to achieve such detection was obtained with our constrained setup, then we discuss the data processing aspects, including the period calculation and folding for each PSR, as well as pulse profiles. With the upcoming upgrades to the telescope, more detections are likely to come. An ongoing observation of B2020+28 already yields promising results. Follow the last results here : http://www.f1ehn.org "radioastro"

  12. Virtual observatory tools and amateur radio observations supporting scientific analysis of Jupiter radio emissions

    Science.gov (United States)

    Cecconi, Baptiste; Hess, Sebastien; Le Sidaner, Pierre; Savalle, Renaud; Stéphane, Erard; Coffre, Andrée; Thétas, Emmanuel; André, Nicolas; Génot, Vincent; Thieman, Jim; Typinski, Dave; Sky, Jim; Higgins, Chuck; Imai, Masafumi

    2016-04-01

    In the frame of the preparation of the NASA/JUNO and ESA/JUICE (Jupiter Icy Moon Explorer) missions, and the development of a planetary sciences virtual observatory (VO), we are proposing a new set of tools directed to data providers as well as users, in order to ease data sharing and discovery. We will focus on ground based planetary radio observations (thus mainly Jupiter radio emissions), trying for instance to enhance the temporal coverage of jovian decametric emission. The data service we will be using is EPN-TAP, a planetary science data access protocol developed by Europlanet-VESPA (Virtual European Solar and Planetary Access). This protocol is derived from IVOA (International Virtual Observatory Alliance) standards. The Jupiter Routine Observations from the Nancay Decameter Array are already shared on the planetary science VO using this protocol, as well as data from the Iitate Low Frquency Radio Antenna, in Japan. Amateur radio data from the RadioJOVE project is also available. The attached figure shows data from those three providers. We will first introduce the VO tools and concepts of interest for the planetary radioastronomy community. We will then present the various data formats now used for such data services, as well as their associated metadata. We will finally show various prototypical tools that make use of this shared datasets.

  13. Jumping and Hopping in Elite and Amateur Orienteering Athletes and Correlations to Sprinting and Running

    DEFF Research Database (Denmark)

    Hébert-Losier, Kim; Jensen, Kurt; Holmberg, Hans-Christer

    2014-01-01

    PURPOSE: Jumping and hopping are used to measure lower-body muscle power, stiffness, and stretch-shortening cycle utilization in sports, with several studies reporting correlations between such measures and sprinting and/or running abilities in athletes. Neither jumping and hopping nor correlatio...... and rapid generation of high relative maximal forces, especially vertically. These functional measures were more closely related to sprinting and/or running abilities, indicating benefits of lower-body training in orienteering.......PURPOSE: Jumping and hopping are used to measure lower-body muscle power, stiffness, and stretch-shortening cycle utilization in sports, with several studies reporting correlations between such measures and sprinting and/or running abilities in athletes. Neither jumping and hopping nor correlations...... with sprinting and/or running have been examined in orienteering athletes. METHODS: We investigated squat jump (SJ), countermovement jump (CMJ), standing long jump (SLJ), and hopping performed by 8 elite and 8 amateur male foot-orienteering athletes (29 ± 7 y, 183 ± 5 cm, 73 ± 7 kg) and possible correlations...

  14. Blood concentrations of ions and metals in amateur and elite runners using neutron activation analyses

    International Nuclear Information System (INIS)

    Santos, Luciana Kovacs dos

    2012-01-01

    In this study Br, Ca, Cl, Fe, I, K, Mg, Na, S and Zn concentration were investigated in blood of Brazilian athletes (endurance) using Neutron Activation Analyses technique (NAA). The blood samples were collected from male amateur athletes (AR) and male and female elite athletes (ER), ranging from 18 to 36 year old. The blood samples were collected at the LABEX/UNICAMP and they were irradiated in the nuclear reactor IEA-R1 at IPEN (Sao Paulo, Brazil). The range (at rest) established for AR and ER were compared with the control group (CG), subjects of same gender and age but not involved with physical activities, and showed significant differences for Ca (51 - 439 mgL -1 for CG, 162 - 410 mgL -1 for AR and 64 - 152 mgL -1 for ER) and Br (7.4 - 30.6 mgL -1 for CG, 4.0 - 9.6 mgL -1 for AR and 1.9 - 3.5 mgL -1 for ER), suggesting that a strong dependency of these limits in function of adopted physical training exists. We also performed a systematic investigation for the AR before, during and after the exercise program. These data can be considered for the preparation of a balanced diet, for evaluating the performance of the athletes during the period of competition preparation as well as contributing for proposing new protocols of clinical evaluation not reported in the literature yet. (author)

  15. Effectiveness of neuromuscular taping on pronated foot posture and walking plantar pressures in amateur runners.

    Science.gov (United States)

    Aguilar, María Bravo; Abián-Vicén, Javier; Halstead, Jill; Gijon-Nogueron, Gabriel

    2016-04-01

    To determine the effect kinesiotaping (KT) versus sham kinesiotaping (sham KT) in the repositioning of pronated feet after a short running. Prospective, randomised, double-blinded, using a repeated-measures design with no cross-over. 116 amateur runners were screened by assessing the post-run (45min duration) foot posture to identify pronated foot types (defined by Foot Posture Index [FPI] score of ≥6). Seventy-three runners met the inclusion criteria and were allocated into two treatment groups, KT (n=49) and sham KT (n=24). After applying either the KT or sham KT and completing 45min of running (mean speed of 12km/h), outcome measures were collected (FPI and walking Pedobarography). FPI was reduced in both groups, more so in the KT group (mean FPI between group difference=0.9, CI 0.1-1.9), with a score closer to neutral. There were statistically significant differences between KT and sham KT (p<.05 and p<.01) in pressure time integral, suggesting that sham KT had a greater effect. KT may be of some assistant to clinicians in correction of pronated foot posture in a short-term. There was no effect of KT, however on pressure variables at heel strike or toe-off following a short duration of running, the sham KT technique had a greater effect. Therapy, level 1b. Copyright © 2015 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

  16. Treatment of chronic Achilles tendon pain by Kinesio taping in an amateur badminton player.

    Science.gov (United States)

    Lee, Jung-hoon; Yoo, Won-gyu

    2012-05-01

    To evaluate the effects of Kinesio taping on a patient with chronic Achilles tendon pain. Case report. A 22-year-old male amateur badminton player slipped on the ground as he landed after jumping while playing badminton, resulting in chronic Achilles tendon pain of the dominant (right) leg. We performed Achilles tendon taping (ATT) over 5 weeks. The patient's ultrasonography showed that the tendon thickness was moderately reduced from 0.42 cm to 0.37 cm and that the angles of active dorsiflexion and active plantar flexion without pain increased from 15° to 20° and from 20° to 45°, respectively. The Victorian Institute of Sport Assessment-Achilles (VISA-A) questionnaire score increased from 64 to 95, and the load-induced pain assessment score decreased from 6 to 0. The pain threshold increased from 0.8 kg to 10 kg. The tenderness at 3 kg, assessed on a numeric rating scale, decreased from 7 to 0, and the patient was able to play badminton and soccer without pain. We verified the effect with an increase in the active ankle joint range of motion and the VISA-A questionnaire score, which was achieved by a decrease in tenderness and pain from repeated ATT application. Copyright © 2011 Elsevier Ltd. All rights reserved.

  17. Prohibiting Headgear for Safety in Amateur Boxing? Opinion of the Canadian Boxing Community: an Online Poll.

    Science.gov (United States)

    Dickinson, Philip; Rempel, Philip

    In 2013, the Amateur International Boxing Association (AIBA) introduced a rule banning headgear for male-senior open class boxers during competition. The AIBA has defended the rule change as motivated by safety and supported by internal unpublished studies. As a result, in 2018, the AIBA plans to universally prohibit headgear in competition: for all competitors (male and female), all ages and all levels. Within Canada, this ruling has generated controversy in the boxing community, yet there has been no overall measure of opinion. To address this, we instituted a voluntary, anonymous, online open-access poll to allow members of the boxing community to express their stance on headgear use in competition. In total, 636 responses were received. A total of 71.5 % of Canadian respondents believed headgear should be mandatory at all levels. Only 5.8 % agreed that headgear should be prohibited, as planned for 2018. Estimating results on a representative breakdown of boxing membership in Canada, a similar pattern emerged, whereby 68.2 % concurred with mandatory headgear while only 4.95 % supported its prohibition. Parents of boxers were almost unanimously against banning headgear, stating they would change sports as a result. Similarly, only 1.7 % of women believed headgear should be prohibited. The consensus of the Canadian boxing community largely opposes the rule changes that the AIBA has implemented. The results highlight risks posed to the long-term viability of the sport, if significant grassroots safety concerns are disregarded.

  18. WTF! Taboo Language in TV Series: An Analysis of Professional and Amateur Translation

    Directory of Open Access Journals (Sweden)

    Micòl Beseghi

    2016-02-01

    Full Text Available This paper focuses on the topic of censorship associated with the use of strong language and swear words in the translation of contemporary American TV series. In AVT, more specifically in Italian dubbing, the practice of censorship, in the form of suppression or toning down of what might be perceived as offensive, disturbing, too explicit or inconvenient, still remains a problematic issue. By focusing on two recent successful TV series - Girls and Orange is the New Black – which are characterized by the use of strong language (swear words, politically incorrect references and the presence of taboo subjects (homosexuality, sex, drugs, violence – this study will consider the different translation choices applied in dubbing and fansubbing. Previous academic studies have underlined the fact that professional translators tend to remove, more or less consciously, the disturbing elements from the source text, while fansubbers try to adhere as much as possible to the original text, not only in terms of linguistic contents but also in terms of register and style. The results of this analysis seem on the one hand to confirm that there is still not a systematic set of rules that govern the translation of strong language in dubbing, and on the other to indicate that the gap between professional and amateur translation is perhaps becoming less pronounced.

  19. Small scale irregularities in Comet Halley's plasma mantle - An attempt at self-consistent analysis of plasma and magnetic field data

    Science.gov (United States)

    Vaisberg, O. L.; Russell, C. T.; Luhmann, J. G.; Schwingenschuh, K.

    1989-01-01

    VEGA-1 measurements of the plasma density and magnetic field in the coma of Comet Halley show characteristic signatures over a significant portion of the outbound pass. It is found that the assumption that there is a balance between the thermal and magnetic pressures in these features can be used to obtain estimates of the plasma temperature as a function of distance from the nucleus. These estimates indicate that the ions cool from about 1.5 x 10 to the 6th K at 10 to the 5th km to 2 x 10 to the 5th K at 5 x 10 to the 4th km. The technique used here represents a novel approach whereby temperature measurements can be made in situations where only plasma density and magnetic field data are available.

  20. Professional- Amateur Astronomer Partnerships in Scientific Research: The Re-emergence of Jupiter's 5-Micron Hot Spots

    Science.gov (United States)

    Yanamandra-Fisher, P. A.

    2012-12-01

    The night sky, with all its delights and mysteries, enthrall professional and amateur astronomers alike. The discrete data sets acquired by professional astronomers via their approved observing programs at various national facilities are supplemented by the nearly daily observations of the same celestial object by amateur astronomers around the world. The emerging partnerships between professional and dedicated amateur astronomers rely on creating a niche for long timeline of multispectral remote sensing. "Citizen Astronomy" can be thought of as the paradigm shift transforming the nature of observational astronomy. In the past decade, it is the collective observations and their analyses by the ever-increasing global network of amateur astronomers that has discovered interesting phenomena and provided the reference backdrop for observations by ground-based professional astronomers and spacecraft missions. We shall present results from our collaborations to observe the recent global upheaval on Jupiter for the past five years and illustrate the strong synergy between the two groups. Global upheavals on Jupiter involve changes in the albedo of entire axisymmetric regions, lasting several years, with the last two occurring in 1989 and 2006. Against this backdrop of planetary-scale changes, discrete features such as the Great Red Spot (GRS), and other vortices exhibit changes on shorter spatial- and time-scales. One set of features we are currently tracking is the variability of the discrete equatorial 5-μm hot spots, semi-evenly spaced in longitude and confined to a narrow latitude band centered at 6.5°N (southern edge of the North Equatorial Belt, NEB), abundant in Voyager images (1980-1981). Tantalizingly similar patterns were observed in the visible (bright plumes and blue-gray regions), where reflectivity in the red is anti-correlated with 5-μm thermal radiance. During the recent NEB fade (2011 - early 2012), however, these otherwise ubiquitous features were

  1. ANSTO radon monitoring within the WMO global atmosphere watch programme

    International Nuclear Information System (INIS)

    Zahorowski, W.; Chambers, S.; Sisoutham, O.; Werczynski, S.

    2003-01-01

    A brief overview of results from the ANSTO radon programmes at the Cape Grim (Tasmania) and Mauna Loa Observatory (Hawaii), World Meteorological Organisation Global Atmosphere Watch stations it presented. At Cape Grim, a 100 mBq m 3 threshold on radon concentration observations has proven to be a suitable criterion for Baseline monitoring. Furthermore, analysis of the Cape Grim Baseline radon data has enabled the characterisation of the oceanic radon flux over the Southern Ocean Cape Grim fetch region. Radon observations at the Mauna Loa Observatory, in conjunction with back trajectory analysis, have helped to identify the source regions of the most pervasive pollution events in the atmosphere of the Pacific Basin. The seasonal variability in the strength of terrestrial influence on Pacific air masses has also been characterised

  2. Watching Dallas again 1: Doing retro audience research

    Directory of Open Access Journals (Sweden)

    Amanda Gilroy

    2015-06-01

    Full Text Available This essay and the audience reception projects it introduces alleviate the desperation of seeking the television audience by recourse to Ien Ang's influential book, Watching Dallas ([1982] 1985. Within the context of a unit on audience research in a master's-level course on media, two groups of students explored the possibilities of remixing Ang in the present digital media landscape via informants' comments on the first season of the new series of Dallas (2012–14. Discourses of nostalgia circulate within and around the text, as well as the project itself. Retro audience research generates not only data about the affective memories and critical reflections of informants but also insights into research methods and the production of new nostalgic subjects.

  3. Watching films with magical content facilitates creativity in children.

    Science.gov (United States)

    Subbotsky, Eugene; Hysted, Claire; Jones, Nicola

    2010-08-01

    Two experiments examined the possible link between magical thinking and creativity in preschool children. In Exp. 1, 4- and 6-yr.-old children were shown a film with either a magical or nonmagical theme. Results indicated that the mean scores of children shown the magical film was significantly higher than that of children watching the nonmagical film on the majority of subsequent creativity tests for both age groups. This trend was also found for 6-yr.-olds' drawings of impossible items. In Exp. 2, Exp. 1 was replicated successfully with 6- and 8-yr.-old children. Exposing children to a film with a magical theme did not affect their beliefs about magic. The results were interpreted to accentuate the role of magical thinking in children's cognitive development. Classroom implications of the results were also discussed.

  4. Trial watch: Immunogenic cell death induction by anticancer chemotherapeutics.

    Science.gov (United States)

    Garg, Abhishek D; More, Sanket; Rufo, Nicole; Mece, Odeta; Sassano, Maria Livia; Agostinis, Patrizia; Zitvogel, Laurence; Kroemer, Guido; Galluzzi, Lorenzo

    2017-01-01

    The expression "immunogenic cell death" (ICD) refers to a functionally unique form of cell death that facilitates (instead of suppressing) a T cell-dependent immune response specific for dead cell-derived antigens. ICD critically relies on the activation of adaptive responses in dying cells, culminating with the exposure or secretion of immunostimulatory molecules commonly referred to as "damage-associated molecular patterns". Only a few agents can elicit bona fide ICD, including some clinically established chemotherapeutics such as doxorubicin, epirubicin, idarubicin, mitoxantrone, bleomycin, bortezomib, cyclophosphamide and oxaliplatin. In this Trial Watch, we discuss recent progress on the development of ICD-inducing chemotherapeutic regimens, focusing on studies that evaluate clinical efficacy in conjunction with immunological biomarkers.

  5. Watching TV and food intake: the role of content.

    Directory of Open Access Journals (Sweden)

    Colin D Chapman

    Full Text Available Obesity is a serious and growing health concern worldwide. Watching television (TV represents a condition during which many habitually eat, irrespective of hunger level. However, as of yet, little is known about how the content of television programs being watched differentially impacts concurrent eating behavior. In this study, eighteen normal-weight female students participated in three counter-balanced experimental conditions, including a 'Boring' TV condition (art lecture, an 'Engaging' TV condition (Swedish TV comedy series, and a no TV control condition during which participants read (a text on insects living in Sweden. Throughout each condition participants had access to both high-calorie (M&Ms and low-calorie (grapes snacks. We found that, relative to the Engaging TV condition, Boring TV encouraged excessive eating (+52% g, P = 0.009. Additionally, the Engaging TV condition actually resulted in significantly less concurrent intake relative to the control 'Text' condition (-35% g, P = 0.05. This intake was driven almost entirely by the healthy snack, grapes; however, this interaction did not reach significance (P = 0.07. Finally, there was a significant correlation between how bored participants were across all conditions, and their concurrent food intake (beta = 0.317, P = 0.02. Intake as measured by kcals was similarly patterned but did not reach significance. These results suggest that, for women, different TV programs elicit different levels of concurrent food intake, and that the degree to which a program is engaging (or alternately, boring is related to that intake. Additionally, they suggest that emotional content (e.g. boring vs. engaging may be more associated than modality (e.g. TV vs. text with concurrent intake.

  6. Watching TV and food intake: the role of content.

    Science.gov (United States)

    Chapman, Colin D; Nilsson, Victor C; Thune, Hanna Å; Cedernaes, Jonathan; Le Grevès, Madeleine; Hogenkamp, Pleunie S; Benedict, Christian; Schiöth, Helgi B

    2014-01-01

    Obesity is a serious and growing health concern worldwide. Watching television (TV) represents a condition during which many habitually eat, irrespective of hunger level. However, as of yet, little is known about how the content of television programs being watched differentially impacts concurrent eating behavior. In this study, eighteen normal-weight female students participated in three counter-balanced experimental conditions, including a 'Boring' TV condition (art lecture), an 'Engaging' TV condition (Swedish TV comedy series), and a no TV control condition during which participants read (a text on insects living in Sweden). Throughout each condition participants had access to both high-calorie (M&Ms) and low-calorie (grapes) snacks. We found that, relative to the Engaging TV condition, Boring TV encouraged excessive eating (+52% g, P = 0.009). Additionally, the Engaging TV condition actually resulted in significantly less concurrent intake relative to the control 'Text' condition (-35% g, P = 0.05). This intake was driven almost entirely by the healthy snack, grapes; however, this interaction did not reach significance (P = 0.07). Finally, there was a significant correlation between how bored participants were across all conditions, and their concurrent food intake (beta = 0.317, P = 0.02). Intake as measured by kcals was similarly patterned but did not reach significance. These results suggest that, for women, different TV programs elicit different levels of concurrent food intake, and that the degree to which a program is engaging (or alternately, boring) is related to that intake. Additionally, they suggest that emotional content (e.g. boring vs. engaging) may be more associated than modality (e.g. TV vs. text) with concurrent intake.

  7. Incidental Foreign-Language Acquisition by Children Watching Subtitled Television Programs

    Science.gov (United States)

    Ina, Lekkai

    2014-01-01

    Series of international studies have shown that subtitled television programs provide a rich context for foreign language acquisition. This study investigated whether incidental language acquisition occurs from watching a television program with/without subtitles. Children in the experimental conditions watch: (a) a 15 minute snapshot of a well…

  8. Effects of Presidential Debate Watching and Ideology on Attitudes and Knowledge.

    Science.gov (United States)

    Benoit, William L.; Webber, David J.; Berman, Julie

    1998-01-01

    Compares respondents who watched the first 1996 presidential debate with respondents who did not. Finds (1) those who watched the debate could more accurately recognize issue positions of Clinton and Dole than nonwatchers; (2) differences in the groups' assessment of character traits of the leading candidates; and (3) more respondents gave policy…

  9. Testosterone and Cortisol Release among Spanish Soccer Fans Watching the 2010 World Cup Final

    NARCIS (Netherlands)

    van der Meij, L.; Almela, M.; Hidalgo, V.; Villada, C.; IJzerman, H.; van Lange, P.A.M.; Salvador, A.

    2012-01-01

    This field study investigated the release of testosterone and cortisol of a vicarious winning experience in Spanish fans watching the finals between Spain and the Netherlands in the 2010 FIFA World Cup Soccer. Spanish fans (n = 50) watched the match with friends or family in a public place or at

  10. 47 CFR 80.303 - Watch on 156.800 MHz (Channel 16).

    Science.gov (United States)

    2010-10-01

    ... Section 80.303 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES STATIONS IN THE MARITIME SERVICES Safety Watch Requirements and Procedures Coast Station Safety... maintain a safety watch on the frequency 156.800 MHz except when transmitting on 156.800 MHz. (b) A coast...

  11. P3-1: Ophthalmologic Factors Influencing Asthenopia with Watching 3D Displays

    Directory of Open Access Journals (Sweden)

    Sungwook Wee

    2012-10-01

    Full Text Available Purpose: To identify ophthalmologic factors influencing asthenopia while watching 3D displays. Methods: 30 adult subjects without ophthalmologic abnormality watched the same 3D displays for 30 minutes. Each subject's far and near visual acuity, near points of accommodation and convergence, amplitude of fusional convergence and divergence, stereopsis, angle of phoric deviation, tear break-up time, and temperature of ocular surface before and after watching 3D displays were measured. And surveys for subjective symptoms right after watching 3D displays were conducted. The above-mentioned experiments were performed equally with 2D displays for detection of innate influence of 3D displays. Results: The near points of accommodation and convergence were significantly changed after watching 3D displays (p < .05 compared to 2D displays. And all 10 subjective symptoms were significantly increased after watching 3D displays (p < .05. Conclusion: The accommodation and binocular vergence are predominant ophthalmologic factors that might influence asthenopia significantly while watching 3D displays. Subjective visual discomfort significantly increases with watching 3D displays, and more specific evaluation should be added for detecting the practically related factors with asthenopia.

  12. Reviews Equipment: Chameleon Nano Flakes Book: Requiem for a Species Equipment: Laser Sound System Equipment: EasySense VISION Equipment: UV Flash Kit Book: The Demon-Haunted World Book: Nonsense on Stilts Book: How to Think about Weird Things Web Watch

    Science.gov (United States)

    2011-03-01

    WE RECOMMEND Requiem for a Species This book delivers a sober message about climate change Laser Sound System Sound kit is useful for laser demonstrations EasySense VISION Data Harvest produces another easy-to-use data logger UV Flash Kit Useful equipment captures shadows on film The Demon-Haunted World World-famous astronomer attacks pseudoscience in this book Nonsense on Stilts A thought-provoking analysis of hard and soft sciences How to Think about Weird Things This book explores the credibility of astrologers and their ilk WORTH A LOOK Chameleon Nano Flakes Product lacks good instructions and guidelines WEB WATCH Amateur scientists help out researchers with a variety of online projects

  13. Interim criteria for Organic Watch List tanks at the Hanford Site

    International Nuclear Information System (INIS)

    Babad, S.; Turner, D.A.

    1993-09-01

    This document establishes interim criteria for identifying single-shell radioactive waste storage tanks at the Hanford Site that contain organic chemicals mixed with nitrate/nitrite salts in potentially hazardous concentrations. These tanks are designated as ''organic Watch List tanks.'' Watch List tanks are radioactive waste storage tanks that have the potential for release of high-level waste as a result of uncontrolled increases in temperature or pressure. Organic Watch List tanks are those Watch List tanks that contain relatively high concentrations of organic chemicals. Because of the potential for release of high-level waste resulting from uncontrolled increases in temperature or pressure, the organic Watch List tanks (collectively) constitute a Hanford Site radioactive waste storage tank ''safety issue.''

  14. Nutritional status and prevalence of metabolic syndrome in amateur soccer players

    Directory of Open Access Journals (Sweden)

    Luciano Meireles de Pontes

    2009-01-01

    Full Text Available The objective of this study was to evaluate the nutritional status and prevalence of metabolic syndrome in amateur soccer players. Thirty-two men (39.0 ± 6.4 years regularly playing soccer were studied. Nutritional status was evaluated according to body mass index (BMI and the World Health Organization classification. Metabolic syndrome was defined according to the criterion of the International Diabetes Federation which, in addition to central obesity (waist circumference > 90 cm, considers two or more of the following conditions in males: triglyceridemia ≥ 150 mg/dl; HDL < 40 mg/dl; systolic pressure ≥ 130 mmHg or diastolic pressure ≥ 85 mm/Hg, and fasting glycemia ≥ 100 mg/dl. Statistical analysis processed descriptive data of percentage, mean, minimum, maximum, and standard deviation. Correlations between pairs of variables were determined by Pearson’s r coefficient. The results showed that 43.8% of the soccer players were eutrophic, 43.8% presented overweight and 12.5% were obese. The prevalence of metabolic syndrome was 37.5% and the most prevalent components were abdominal obesity in 59.4%, hypertension in 40.6%, hypertriglyceridemia in 34.4%, HDL-c in 28.1%, and fasting glycemia in 15.6%. BMI presented a more robust correlation with waist circumference (r = 0.918. In conclusion, the nutritional status of the soccer players studied was characterized by the presence of overweight and obesity. Although the frequency of metabolic syndrome was lower than in other epidemiological studies, these sportsmen should engage in other health-promoting behaviors such as good eating habits and control of stress in addition to physical activity.

  15. Effects of Cupping Therapy in Amateur and Professional Athletes: Systematic Review of Randomized Controlled Trials.

    Science.gov (United States)

    Bridgett, Rhianna; Klose, Petra; Duffield, Rob; Mydock, Suni; Lauche, Romy

    2018-03-01

    Despite the recent re-emergence of the process of cupping by athletes, supporting evidence for its efficacy and safety remains scarce. This systematic review aims to summarize the evidence of clinical trials on cupping for athletes. SCOPUS, Cochrane Library, PubMed, AMED, and CNKI databases were searched from their inception to December 10, 2016. Randomized controlled trials on cupping therapy with no restriction regarding the technique, or cointerventions, were included, if they measured the effects of cupping compared with any other intervention on health and performance outcomes in professionals, semi-professionals, and leisure athletes. Data extraction and risk of bias assessment using the Cochrane Risk of Bias Tool were conducted independently by two pairs of reviewers. Eleven trials with n = 498 participants from China, the United States, Greece, Iran, and the United Arab Emirates were included, reporting effects on different populations, including soccer, football, and handball players, swimmers, gymnasts, and track and field athletes of both amateur and professional nature. Cupping was applied between 1 and 20 times, in daily or weekly intervals, alone or in combination with, for example, acupuncture. Outcomes varied greatly from symptom intensity, recovery measures, functional measures, serum markers, and experimental outcomes. Cupping was reported as beneficial for perceptions of pain and disability, increased range of motion, and reductions in creatine kinase when compared to mostly untreated control groups. The majority of trials had an unclear or high risk of bias. None of the studies reported safety. No explicit recommendation for or against the use of cupping for athletes can be made. More studies are necessary for conclusive judgment on the efficacy and safety of cupping in athletes.

  16. Absence of acute skeletal and cardiac muscle injuries in amateur triathletes

    Directory of Open Access Journals (Sweden)

    Luiz Carlos C. Jovita

    2009-01-01

    Full Text Available Creatine kinase (CK and creatine kinase muscle-brain fraction (CK-MB might be associated with damage to muscle and cardiac tissue, respectively, as a consequence of intense prolonged exercise. The objective of the present study was to determine whether acute changes in CK and CK-MB reflect some risk of damage to skeletal and cardiac muscles in amateur athletes after Ironman 70.3. The sample consisted of 10 male athlete volunteers (age: 34.0 ± 9.2 years. A venous blood sample (2 mL was collected before and after the competition. The volunteers completed the race in 5h20min to 6 h. CK and CK-MB were analyzed by an enzymatic method using Wiener labreagent in an automatic spectrophotometer (Targa bt 3000. The nonparametric Wilcoxon test showed significant differences (p < .05 in the variables studied before and after the competition. Mean CK was 112.23 ± 34.9 and 458.0 ± 204.9 U/L (Δ% = 418.2, and mean CK-MB was 7.4 ± 2.6 and 10.8 ± 3.9 U/L (Δ% = 153.3 before and after the event, respectively. The relative variation in CK-MB compared to CK before (6.9% and after (2.5% the competition showed that the former is not a factor of concern during intense prolonged exercise such as Ironman 70.3. In conclusion, the acute increase in CK after the end of intense prolonged exercise indicates skeletal muscle damage which, however, is considered to be normal for athletes. With respect to CK-MB, cardiac muscle injury was inexistent.

  17. Differences in physical fitness and throwing velocity among elite and amateur male handball players.

    Science.gov (United States)

    Gorostiaga, E M; Granados, C; Ibáñez, J; Izquierdo, M

    2005-04-01

    This study compared physical characteristics (body height, body mass [BM], body fat [BF], and free fatty mass [FFM]), one repetition maximum bench-press (1RM (BP)), jumping explosive strength (VJ), handball throwing velocity, power-load relationship of the leg and arm extensor muscles, 5- and 15-m sprint running time, and running endurance in two handball male teams: elite team, one of the world's leading teams (EM, n = 15) and amateur team, playing in the Spanish National Second Division (AM, n = 15). EM had similar values in body height, BF, VJ, 5- and 15-m sprint running time and running endurance than AM. However, the EM group gave higher values in BM (95.2 +/- 13 kg vs. 82.4 +/- 10 kg, p vs. 72.4 +/- 7 kg, p vs. 83 +/- 10 kg, p vs. 21.8 +/- 1.6 m . s (-1), p vs. 22.9 +/- 1.4 m . s (-1), p individual values of velocity at 30 % of 1RM (BP) and individual values of ball velocity during a standing throw. Significant correlations were observed in EM, but not in AM, between the individual values of velocity during 3-step running throw and the individual values of velocity at 30 % of 1RM (BP) (r = 0.72, p individual values of power at 100 % of body mass during half-squat actions (r = 0.62, p < 0.05). The present results suggest that more muscular and powerful players are at an advantage in handball. The differences observed in free fatty mass could partly explain the differences observed between groups in absolute maximal strength and muscle power. In EM, higher efficiency in handball throwing velocity may be associated with both upper and lower extremity power output capabilities, whereas in AM this relationship may be different. Endurance capacity does not seem to represent a limitation for elite performance in handball.

  18. ANAEROBIC CAPACITY OF AMATEUR MOUNTAIN BIKERS DURING THE FIRST HALF OF THE COMPETITION SEASON

    Directory of Open Access Journals (Sweden)

    Ryszard Jarosław Zarzeczny

    2013-06-01

    Full Text Available Sustained aerobic exercise not only affects the rate of force development but also decreases peak power development. The aim of this study was to investigate whether anaerobic power of amateur mountain bikers changes during the first half of the competition season. Eight trained cyclists (mean ± SE: age: 22.0 ±0.5 years; height: 174.6 ± 0.9 cm; weight: 70.7 ± 2.6 kg were subjected to an ergocycle incremental exercise test and to the Wingate test on two occasions: before, and in the middle of the season. After the incremental exercise test the excess post-exercise oxygen consumption was measured during 5-min recovery. Blood lactate concentration was measured in the 4th min after the Wingate test. Maximum oxygen uptake increased from 60.0 ± 1.5 ml · min-1 · kg-1 at the beginning of the season to 65.2 ± 1.4 ml · min-1 · kg-1 (P<0.05 in the season. Neither of the mechanical variables of the Wingate test nor excess post-exercise oxygen consumption values were significantly different in these two measurements. However, blood lactate concentration was significantly higher (P<0.001 in season (11.0 ± 0.5 mM than before the season (8.6 ± 0.4 mM. It is concluded that: 1 despite the increase of cyclists’ maximum oxygen uptake during the competition season their anaerobic power did not change; 2 blood lactate concentration measured at the 4th min after the Wingate test does not properly reflect training-induced changes in energy metabolism.

  19. EVALUATION OF THE RE LATIONSHIP BETWEEN L EG STRENGTH AND VELOCITY VALUES IN AMATEUR FOOTBALL PLAYERS

    Directory of Open Access Journals (Sweden)

    İsmail G Ö K H A N

    2015-08-01

    Full Text Available The purpose of this study is to analyse the relationship between conditional parameters ( leg strength, back strength, velocity 30 Mt, flexibility by measuring some physical (height, body w eight and physiological (systole, diastole, KAH characteristics of male football players of Karakopru Belediyespor and Harran University. According to the results obtained from the measurements, mean age was 23, 46±3,50 /years; as a part of physical cha racteristics ,mean height was 176,20±5,10 (cm and mean body weight was 70,16±5,21 (kg . As a part of physiological characteristics, mean Systolic Blood Pressure was 123,87±14,23 (mmhg , mean Diastolic Blood Pressure was 73,60±16,42 (mmhg and mean Resting Heart Rate was 64,50±10,48 (beats/min . As a part of conditional parameters, mean leg strength was 101,83±40,48 (kg, back strength was 75,83±19,43 (kg, flexibility was 34,16±6,65 (cm and mean velocity in 30 Mt. was 4,15± 0,20 (sec. It was observed that there was a relationship between 30 meters velocity and leg strength parameters (r= - , 407 . There was no relationship between 30 meters velocity and back strength parameters (r=, 429; and between 30 meters velocity and flexibility param eters (r=, 659 . As a result, while the relationship between velocity and back strength values of the amateur football players was not significant (p>0.05 ; the relationship between velocity and leg strength values was found to be significant (p<0.05.

  20. Toward a qualitative understanding of binge-watching behaviors: A focus group approach.

    Science.gov (United States)

    Flayelle, Maèva; Maurage, Pierre; Billieux, Joël

    2017-12-01

    Background and aims Binge-watching (i.e., seeing multiple episodes of the same TV series in a row) now constitutes a widespread phenomenon. However, little is known about the psychological factors underlying this behavior, as reflected by the paucity of available studies, most merely focusing on its potential harmfulness by applying the classic criteria used for other addictive disorders without exploring the uniqueness of binge-watching. This study thus aimed to take the opposite approach as a first step toward a genuine understanding of binge-watching behaviors through a qualitative analysis of the phenomenological characteristics of TV series watching. Methods A focus group of regular TV series viewers (N = 7) was established to explore a wide range of aspects related to TV series watching (e.g., motives, viewing practices, and related behaviors). Results A content analysis identified binge-watching features across three dimensions: TV series watching motivations, TV series watching engagement, and structural characteristics of TV shows. Most participants acknowledged that TV series watching can become addictive, but they all agreed having trouble recognizing themselves as truly being an "addict." Although obvious connections could be established with substance addiction criteria and symptoms, such parallelism appeared to be insufficient, as several distinctive facets emerged (e.g., positive view, transient overinvolvement, context dependency, and low everyday life impact). Discussion and conclusion The research should go beyond the classic biomedical and psychological models of addictive behaviors to account for binge-watching in order to explore its specificities and generate the first steps toward an adequate theoretical rationale for these emerging problematic behaviors.

  1. 47 CFR 80.302 - Notice of discontinuance, reduction, or impairment of service involving a distress watch.

    Science.gov (United States)

    2010-10-01

    ... COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES STATIONS IN THE MARITIME SERVICES Safety Watch Requirements and Procedures Coast Station Safety Watches § 80.302 Notice of discontinuance...

  2. Riesgo de adicción al ejercicio en triatletas hombres amateur varones y su relación con variables de entrenamiento. [Risk of exercise addiction among male amateur triathletes and its relationship with training variables].

    Directory of Open Access Journals (Sweden)

    Pedro L. Valenzuela

    2017-04-01

    Full Text Available Debido a la creciente popularidad del triatlón a nivel amateur el objetivo de este estudio fue evaluar el potencial adictivo de este deporte, así como analizar si determinadas variables de entrenamiento podrían ser consideradas factores de riesgo. Atendiendo a la escala de dependencia al ejercicio revisada (Exercise Dependence Scale-Revised, EDS-R, 93 triatletas varones amateur (34.5 ± 9.4 años fueron divididos en no dependientes asintomáticos (NDA, 31.2%, no dependientes sintomáticos (NDS, 60.2% o en riesgo de dependencia (ERD, 8.6%. Se halló una correlación moderada entre el volumen de entrenamiento y la puntuación en la escala EDS-R, entrenando los sujetos ERD más horas y sesiones a la semana que los sujetos NDA. El porcentaje de sujetos clasificados como ERD era mayor según aumentaba la distancia de competición (0.0, 7.1 y 30.0 % de los triatletas de corta, media y larga distancia, respectivamente, siendo la puntuación en la EDS-R de los triatletas de larga distancia significativamente mayor que la de los de media y corta distancia. Estos resultados muestran el potencial adictivo del triatlón, en concreto en larga distancia, y resaltan la importancia del adecuado control psicológico en esta población. Abstract Due to the growing popularity of triathlon at an amateur level the aim of this study was to evaluate the addictive potential of this sport as well as to analyze if particular training variables could be considered as risk factors. Attending to the Exercise Dependence Scale-Revised (EDS-R, 93 male amateur triathletes (34.5 ± 9.4 years old were classified as Non-Dependent Asymptomatic (NDA, 31.2%, Non-Dependent Symptomatic (NDS, 60.2% or At-Risk of Dependence (ARD, 8.6%. A moderate correlation between training volume and the EDS-R score was found, training ARD more hours and sessions per week than NDA. A greater percentage of subjects classified as ARD was found as race distance increased (0.0, 7.1 and 30.0 % for short

  3. Reducing TV watching during adult obesity treatment: two pilot randomized controlled trials.

    Science.gov (United States)

    Raynor, Hollie A; Steeves, Elizabeth Anderson; Bassett, David R; Thompson, Dixie L; Gorin, Amy A; Bond, Dale S

    2013-12-01

    The more time adults spend being sedentary, the greater the risk of obesity. The effect of reducing television (TV) watching, a prominent sedentary behavior, on weight loss has not been tested in an adult standard behavioral obesity intervention, and the mechanisms by which reducing TV watching influences energy balance behaviors are not well understood. Two, 8-week, pilot, randomized controlled trials were conducted examining the effect of a reduced TV watching prescription on energy balance behaviors and weight loss within an adult standard behavioral obesity intervention. In the first study, participants (n=24) were randomized into one of two conditions: (a) reduce energy intake and increase moderate to vigorous physical activity (MVPA) (INCREASE PA); or (b) reduce energy intake and decrease TV watching (DECREASE TV). As findings from the first pilot study did not show an increase in MVPA in the DECREASE TV group, the second study was designed to examine the effect of adding a reduced TV prescription to a standard intervention to optimize outcomes. In Pilot Study 2, participants (n=28) were randomized to INCREASE PA or to INCREASE PA+DECREASE TV. Outcomes included objectively measured TV watching and MVPA, self-reported light physical activity (LPA-Pilot Study 2 only), self-reported dietary intake while watching TV, and weight. Conditions with TV watching prescriptions significantly reduced TV watching. Both studies showed medium to large effect sizes for conditions with TV watching prescriptions to show greater reductions in dietary intake while watching TV. Pilot Study 1 found a trend for an increase in MVPA in INCREASE PA and Pilot Study 2 found significant increases in MVPA in both conditions. Pilot Study 2 found a significant increase in LPA in the INCREASE PA+DECREASE TV. Results indicate adding a TV watching prescription to a standard obesity intervention did not enhance increases in MVPA, but may assist with reducing dietary intake while TV watching and

  4. Differences in performance indicators among winners and losers of group a of the spanish basketball amateur league (EBA

    Directory of Open Access Journals (Sweden)

    Isabel Parejo

    2013-01-01

    Full Text Available El objetivo de este estudio es identificar las diferencias existentes en los indicadores de rendimiento entre equipos ganadores y perdedores, en función del tipo de partido, en el Grupo A de la Liga Española de Baloncesto Amateur. La muestra del estudio estuvo constituida por 231 partidos (N = 462 casos disputados durante la temporada 2005/2006 por los equipos del Grupo A durante la Fase Regular de la Liga EBA (Española de Baloncesto Amateur. Las variables del estudio fueron los indicadores de rendimiento y las variables secundarias, posesiones de balón y coeficientes de eficacia ofensiva y defensiva. El análisis inferencial entre ganadores y perdedores mostró que existían diferencias significativas en varios de los indicadores de rendimiento y los coeficientes de eficacia en los tres tipos de partido, aumentando el número de indicadores que diferencian a medida que se desequilibran los encuentros. En los partidos equilibrados son los lanzamientos de 2 puntos fallados, los tiros libres anotados, los rebotes defensivos, las asistencias y las faltas personales, así como los coeficientes de eficacia, los que diferencian entre ganadores y perdedores. En los partidos desequilibrados se añaden los lanzamientos de campo anotados, las pérdidas y los tapones efectuados. En el caso de los partidos muy desequilibrados casi todos los indicadores de rendimiento excepto las recuperaciones, los rebotes ofensivos y los lanzamientos de 3 puntos fallados diferencian a los ganadores de los perdedores. Se pone de manifiesto que existen un mayor número de indicadores de rendimiento de media que diferencian a los equipos ganadores de los perdedores con respecto a otras ligas más profesionales, por lo que se puede afirmar que existe mayor heterogeneidad entre el nivel de los equipos que conforman este tipo de ligas amateur.

  5. Effectiveness of an injury prevention programme for adult male amateur soccer players: a cluster-randomised controlled trial

    Science.gov (United States)

    van Beijsterveldt, Anna M C; van de Port, Ingrid G L; Krist, Mark R; Schmikli, Sandor L; Stubbe, Janine H; Frederiks, Janet E; Backx, Frank J G

    2012-01-01

    Background The incidence rate of soccer injuries is among the highest in sports, particularly for adult male soccer players. Purpose To investigate the effect of the ‘The11’ injury prevention programme on injury incidence and injury severity in adult male amateur soccer players. Study design Cluster-randomised controlled trial. Methods Teams from two high-level amateur soccer competitions were randomly assigned to an intervention (n=11 teams, 223 players) or control group (n=12 teams, 233 players). The intervention group was instructed to perform The11 in each practice session during one soccer season. The11 focuses on core stability, eccentric training of thigh muscles, proprioceptive training, dynamic stabilisation and plyometrics with straight leg alignment. All participants of the control group continued their practice sessions as usual. Results In total, 427 injuries were recorded, affecting 274 of 456 players (60.1%). Compliance with the intervention programme was good (team compliance=73%, player compliance=71%). Contrary to the hypothesis, injury incidences were almost equal between the two study groups: 9.6 per 1000 sports hours (8.4–11.0) for the intervention group and 9.7 (8.5–11.1) for the control group. No significant differences were found in injury severity, but a significant difference was observed in the location of the injuries: players in the intervention group sustained significantly less knee injuries. Conclusions This study did not find significant differences in the overall injury incidence or injury severity between the intervention and control group of adult male soccer players. More research is recommended, focusing on injury aetiology and risk factors in adult male amateur soccer players. PMID:22878257

  6. Is watching television a realistic leisure option for people with dementia?

    Science.gov (United States)

    Gústafsdóttir, Margrét

    2015-01-01

    Watching television is a common leisure activity, not least among older people. However, watching television may become difficult when it is disturbed by symptoms of dementia. A total of 284 questionnaires were handed out to relatives of people with dementia in Iceland, in the Memory Clinic of the University Hospital and in specialized units for people with dementia (6 day-care units and 8 units within nursing homes). The response rate was just below 58%. Watching television was shown to play a less important role in the course of the daily life of people with dementia as soon as the symptoms of the disease became evident, and it increasingly became less relevant. So, this previous leisure activity left an ever-growing void of time to fill. However, watching television may provide an important social context for contact and togetherness during the progress of the disease, as watching television with someone close to them was important for the individuals with dementia. It is not a viable option for people with dementia to watch television on their own, but they may enjoy watching television while sharing this activity with a person close to them. This may even provide quality time.

  7. Is Watching Television a Realistic Leisure Option for People with Dementia

    Directory of Open Access Journals (Sweden)

    Margrét Gústafsdóttir

    2015-03-01

    Full Text Available Background: Watching television is a common leisure activity, not least among older people. However, watching television may become difficult when it is disturbed by symptoms of dementia. Method: A total of 284 questionnaires were handed out to relatives of people with dementia in Iceland, in the Memory Clinic of the University Hospital and in specialized units for people with dementia (6 day-care units and 8 units within nursing homes. The response rate was just below 58%. Results: Watching television was shown to play a less important role in the course of the daily life of people with dementia as soon as the symptoms of the disease became evident, and it increasingly became less relevant. So, this previous leisure activity left an ever-growing void of time to fill. However, watching television may provide an important social context for contact and togetherness during the progress of the disease, as watching television with someone close to them was important for the individuals with dementia. Conclusion: It is not a viable option for people with dementia to watch television on their own, but they may enjoy watching television while sharing this activity with a person close to them. This may even provide quality time.

  8. Women's television watching and reproductive health behavior in Bangladesh

    Directory of Open Access Journals (Sweden)

    Mizanur Rahman

    2017-12-01

    Full Text Available Bangladesh has made significant social, economic, and health progress in recent decades, yet many reproductive health indicators remain weak. Access to television (TV is increasing rapidly and provides a potential mechanism for influencing health behavior. We present a conceptual framework for the influence of different types of TV exposure on individual’s aspirations and health behavior through the mechanisms of observational learning and ideational change. We analyze data from two large national surveys conducted in 2010 and 2011 to examine the association between women’s TV watching and five reproductive health behaviors controlling for the effects of observed confounders. We find that TV watchers are significantly more likely to desire fewer children, are more likely to use contraceptives, and are less likely to have a birth in the two years before the survey. They are more likely to seek at least four antenatal care visits and to utilize a skilled birth attendant. Consequently, continued increase in the reach of TV and associated growth in TV viewing is potentially an important driver of health behaviors in the country.

  9. If you 'watch and wait', prostate cancer may progress dramatically

    International Nuclear Information System (INIS)

    Allison, R. R.; Schulsinger, A.; Vongtama, V.; Grant, P.; Shin, K. H.; Huben, R.

    1996-01-01

    Objective: Observation has been proposed as an option for localized prostate cancer. However, most series reporting on 'watch and wait include patients treated by TUR or hormones which may affect results. We retrospectively reviewed the natural history of truly untreated prostate cancer and report the outcome for these patients. Materials and Methods: From 1976 to 1992, 34 patients of median age 70 yrs (range 56-88) with biopsy proven localized adenocarcinoma of the prostate refused therapy. All had negative bone scan and none underwent TUR or hormone treatment. No patient was lost to follow-up (median 76 months). Failure patterns and survival were analyzed. Results: At diagnosis 27 patients had palpable nodules (T 2 ) of which 13 were well differentiated and 14 moderately differentiated. Seven had moderately differentiated T 3 lesions. Mild prostatitis was reported in 16 T 2 and 6 T 3 patients. Within 36 months, local progression requiring therapy occurred in all T 3 , all T 2 moderate and (5(13)) T 2 well differentiated patients. Systemic progression occurred in (6(7)) T 3 , (9(14)) T 2 (mod) and (3(13)) T 2 (well) patients. Overall 59% are alive, 26% succumbed to prostate carcinoma and 15% to other causes. Conclusion: Observation results in a high rate of local progression requiring intervention (77%) and excessive systemic disease development (52%) for patients with clinically palpable disease. Perhaps this strategy is viable for earlier stage lesions detected by PSA but it must be tested in a rigorous fashion before accepted

  10. Operating watch list tanks: A study in control

    International Nuclear Information System (INIS)

    Ohl, P.; Hamrick, D.; Marchetti, S.

    1991-01-01

    The paper will present the controls and processes by which Westinghouse Hanford Company manages the characterization and maintenance of tanks that are considered unresolved safety questions. Cultural as well as management changes will be discussed. First, processes by which safe and disciplined actions around potentially hazardous high-activity Hanford waste tanks can be instilled in our work force will be examined. Our success in changing our work practices will be discussed in tangible terms. Second, the dual challenge of upgrading personnel skills while addressing the upgrades for antiquated equipment and control systems with limited financial growth will be examined. This represents one of the primary management challenges of the Waste Tank Operations organization. Reorganization of groups to improve plant maintenance efficiencies, their tracking and prioritization will be addressed. This includes the establishment of unique internal review committee of line managers and operators to prioritize maintenance activities. Finally a means of enhancing the ability of plant forces to respond to anomalies in monitoring data or other tank related event will be discussed. The innovative use of a open-quotes Joint Test Groupclose quotes structure (e.g., on call teams of representatives from all affected and authorizing organizations) to assure that all activities on open-quotes watch list tanksclose quotes in the Tank Farm remain within the defined safety envelope will be discussed

  11. The Watching-Eye Effect on Prosocial Lying

    Directory of Open Access Journals (Sweden)

    Ryo Oda

    2015-07-01

    Full Text Available Evidence shows that people tend to behave prosocially when they are in the presence of images depicting eyes. There are two proximate causes of the eyes effect. One involves positive motivation to gain future reward and the other involves negative motivation to avoid violating a norm. Although several studies have suggested that positive motivation is a strong candidate, these studies were unable to distinguish between adherence to norms and prosocial behavior. We investigated the watching-eyes effect in an experimental setting to determine whether the tendency of humans to violate norms voluntarily could be understood as prosocial behavior. We compared the tendency to tell “prosocial lies” in the presence of a depiction of stylized eyes (eyes condition with that involving no such depiction (control condition. Under the control condition, participants tended to tell lies that benefitted others, whereas the tendency toward prosocial lying disappeared under the eyes condition. This suggests that the desire to avoid violating norms by being honest is stronger than the desire to pursue a good reputation by demonstrating generosity when such violation might lead to serious costs.

  12. Global Atmosphere Watch Workshop on Measurement-Model ...

    Science.gov (United States)

    The World Meteorological Organization’s (WMO) Global Atmosphere Watch (GAW) Programme coordinates high-quality observations of atmospheric composition from global to local scales with the aim to drive high-quality and high-impact science while co-producing a new generation of products and services. In line with this vision, GAW’s Scientific Advisory Group for Total Atmospheric Deposition (SAG-TAD) has a mandate to produce global maps of wet, dry and total atmospheric deposition for important atmospheric chemicals to enable research into biogeochemical cycles and assessments of ecosystem and human health effects. The most suitable scientific approach for this activity is the emerging technique of measurement-model fusion for total atmospheric deposition. This technique requires global-scale measurements of atmospheric trace gases, particles, precipitation composition and precipitation depth, as well as predictions of the same from global/regional chemical transport models. The fusion of measurement and model results requires data assimilation and mapping techniques. The objective of the GAW Workshop on Measurement-Model Fusion for Global Total Atmospheric Deposition (MMF-GTAD), an initiative of the SAG-TAD, was to review the state-of-the-science and explore the feasibility and methodology of producing, on a routine retrospective basis, global maps of atmospheric gas and aerosol concentrations as well as wet, dry and total deposition via measurement-model

  13. Trial watch – inhibiting PARP enzymes for anticancer therapy

    Science.gov (United States)

    Sistigu, Antonella; Manic, Gwenola; Obrist, Florine; Vitale, Ilio

    2016-01-01

    ABSTRACT Poly(ADP-ribose) polymerases (PARPs) are a members of family of enzymes that catalyze poly(ADP-ribosyl)ation (PARylation) and/or mono(ADP-ribosyl)ation (MARylation), two post-translational protein modifications involved in crucial cellular processes including (but not limited to) the DNA damage response (DDR). PARP1, the most abundant family member, is a nuclear protein that is activated upon sensing distinct types of DNA damage and contributes to their resolution by PARylating multiple DDR players. Recent evidence suggests that, along with DDR, activated PARP1 mediates a series of prosurvival and proapoptotic processes aimed at preserving genomic stability. Despite this potential oncosuppressive role, upregulation and/or overactivation of PARP1 or other PARP enzymes has been reported in a variety of human neoplasms. Over the last few decades, several pharmacologic inhibitors of PARP1 and PARP2 have been assessed in preclinical and clinical studies showing potent antineoplastic activity, particularly against homologous recombination (HR)-deficient ovarian and breast cancers. In this Trial Watch, we describe the impact of PARP enzymes and PARylation in cancer, discuss the mechanism of cancer cell killing by PARP1 inactivation, and summarize the results of recent clinical studies aimed at evaluating the safety and therapeutic profile of PARP inhibitors in cancer patients. PMID:27308587

  14. Toughening elastomers with sacrificial bonds and watching them break

    Science.gov (United States)

    Creton, Costantino

    2014-03-01

    Most unfilled elastomers are relatively brittle, in particular when the average molecular weight between crosslinks is lower than the average molecular weight between entanglements. We created a new class of tough elastomers by introducing isotropically prestretched chains inside ordinary acrylic elastomers by successive swelling and polymerization steps. These new materials combine a high entanglement density with a densely crosslinked structure reaching elastic moduli of 4 MPa and fracture strength of 25 MPa. The highly prestretched chains are the minority in the material and can break in the bulk of the material before catastrophic failure occurs, increasing the toughness of the material by two orders of magnitude up to 5 kJ/m2. To investigate the details of the toughening mechanism we introduced specific sacrificial dioxetane bonds in the prestretched chains that emit light when they break. In uniaxial extension cyclic experiments, we checked that the light emission corresponded exactly and quantitatively to the energy dissipation in each cycle demonstrating that short chains break first and long chains later. We then watched crack propagation in notched samples and mapped spatially the location of bond breakage ahead of the crack tip before and during propagation. This new toughening mechanism for elastomers creates superentangled rubbers and is ideally suited to overcome the trade-off between toughness and stiffness of ordinary elastomers. We gratefully acknowledge funding from DSM Ahead

  15. Trial Watch: Toll-like receptor agonists in oncological indications.

    Science.gov (United States)

    Aranda, Fernando; Vacchelli, Erika; Obrist, Florine; Eggermont, Alexander; Galon, Jérôme; Sautès-Fridman, Catherine; Cremer, Isabelle; Henrik Ter Meulen, Jan; Zitvogel, Laurence; Kroemer, Guido; Galluzzi, Lorenzo

    2014-01-01

    Toll-like receptors (TLRs) are an evolutionarily conserved group of enzymatically inactive, single membrane-spanning proteins that recognize a wide panel of exogenous and endogenous danger signals. Besides constituting a crucial component of the innate immune response to bacterial and viral pathogens, TLRs appear to play a major role in anticancer immunosurveillance. In line with this notion, several natural and synthetic TLR ligands have been intensively investigated for their ability to boost tumor-targeting immune responses elicited by a variety of immunotherapeutic and chemotherapeutic interventions. Three of these agents are currently approved by the US Food and Drug Administration (FDA) or equivalent regulatory agencies for use in cancer patients: the so-called bacillus Calmette-Guérin, monophosphoryl lipid A, and imiquimod. However, the number of clinical trials testing the therapeutic potential of both FDA-approved and experimental TLR agonists in cancer patients is stably decreasing, suggesting that drug developers and oncologists are refocusing their interest on alternative immunostimulatory agents. Here, we summarize recent findings on the use of TLR agonists in cancer patients and discuss how the clinical evaluation of FDA-approved and experimental TLR ligands has evolved since the publication of our first Trial Watch dealing with this topic.

  16. The Ulysses supplement to the Granat/WATCH catalog of cosmic gamma-ray bursts

    DEFF Research Database (Denmark)

    Hurley, K.; Lund, Niels; Brandt, Søren Kristian

    2000-01-01

    We present third Interplanetary Network (IPN) localization data for 56 gamma-ray bursts in the Granat/WATCH catalog that occurred between 1990 November and 1994 September. These localizations are obtained by triangulation using various combinations of spacecraft and instruments in the IPN, which ...... consisted of Ulysses, BATSE, Pioneer Venus Orbiter, Mars Observer, WATCH, and PHEBUS. The intersections of the triangulation annuli with the WATCH error circles produce error boxes with areas as small as 16 arcmin(2), reducing the sizes of the error circles by factors of up to 800....

  17. El Rugby amateur en la Inglaterra del Siglo XIX ¿Filosofía o manipulación social? = The Amateur Rugby in England in S. XIX: Philosophy or Social Manipulation?

    Directory of Open Access Journals (Sweden)

    Javier Gálvez González

    2013-10-01

    Full Text Available El 27 de Agosto de 1995, Vernon Pugh, presidente de la comisión de la International Rugby Board (IRB para el amateurismo, declaró que el Rugby pasaba a ser un deporte libre. Se terminaba de esta forma con más de un siglo de amateurismo declarado en este deporte, y se terminaba también con una década de debates sobre el conocido shamateurismo, o profesionalismo encubierto, en el cual los jugadores no cobraban por jugar pero si por el trabajo, ya fuera real o ficticio, que le proporciona el club que defendían. En ese año, terminaba el anacronismo de un deporte de finales del S.XX sometido a reglas de la Inglaterra victoriana. ¿Como se pudo llegar a dicha situación? Dunning y Sheard argumentan que el fenómeno del amateurismo en el Rugby en el S.XIX fue un instrumento de diferenciación social complejo y que debe ser analizado desde un punto de vista histórico y sociopolítico. En esta línea, Bádenas expone que la aristocracia británica del S. XIX utilizó el interés creciente por la cultura griega antigua para atribuir unos valores al deporte practicado en aquella época de forma que se conceptualizó el deporte como una actividad lúdica propia de una élite social. Para lograrlo, ensalzaron los valores de un deporte amateur griego (que no existió como tal concepto y realzaron aquellos textos que criticaban la profesionalización de los deportistas y sus efectos sobre el deporte. Teóricos británicos, como Mahaffy atribuían al deporte griego antiguo unos valores que coincidían con el prototipo de gentlemen deportista de la época victoriana.-----------------------------------------------------------------The August 27, 1995, Vernon Pugh, chairman of the committee of the International Rugby Board (IRB for amateurism, said the Rugby happened to be a free sport. It thus ended more than a century of declared amateurism in this sport, and also ended a decade of discussions on shamateurism or concealed professionalism, in which the

  18. Modelling the physical multiphase interactions of HNO3 between snow and air on the Antarctic Plateau (Dome C and coast (Halley

    Directory of Open Access Journals (Sweden)

    H. G. Chan

    2018-02-01

    Full Text Available Emissions of nitrogen oxide (NOx  =  NO + NO2 from the photolysis of nitrate (NO3− in snow affect the oxidising capacity of the lower troposphere especially in remote regions of high latitudes with little pollution. Current air–snow exchange models are limited by poor understanding of processes and often require unphysical tuning parameters. Here, two multiphase models were developed from physically based parameterisations to describe the interaction of nitrate between the surface layer of the snowpack and the overlying atmosphere. The first model is similar to previous approaches and assumes that below a threshold temperature, To, the air–snow grain interface is pure ice and above To a disordered interface (DI emerges covering the entire grain surface. The second model assumes that air–ice interactions dominate over all temperatures below melting of ice and that any liquid present above the eutectic temperature is concentrated in micropockets. The models are used to predict the nitrate in surface snow constrained by year-round observations of mixing ratios of nitric acid in air at a cold site on the Antarctic Plateau (Dome C; 75°06′ S, 123°33′ E; 3233 m a.s.l. and at a relatively warm site on the Antarctic coast (Halley; 75°35′ S, 26°39′ E; 35 m a.s.l. The first model agrees reasonably well with observations at Dome C (Cv(RMSE  =  1.34 but performs poorly at Halley (Cv(RMSE  =  89.28 while the second model reproduces with good agreement observations at both sites (Cv(RMSE  =  0.84 at both sites. It is therefore suggested that in winter air–snow interactions of nitrate are determined by non-equilibrium surface adsorption and co-condensation on ice coupled with solid-state diffusion inside the grain, similar to Bock et al. (2016. In summer, however, the air–snow exchange of nitrate is mainly driven by solvation into liquid micropockets following Henry's law with

  19. Halley's Legacy: The Selfless Genius Who Founded Geophysics, Led the Science Community to Solve the Problem of Finding Longitude at Sea, and Whose Work in Areas from Geomagnetism to Planetology Still Has Meaning For Today's Scientists

    Science.gov (United States)

    Wakefield, J.

    2005-12-01

    2005 marks the 300th anniversary of Edmond Halley's publication of his infamous synopsis predicting the accurate return of the comet that would come to bear his name. On this occasion, it is time to remember him not only as the founder of geophysics but for his contributions to the world of science beyond his comet work. Halley's comet-transformed by the first triumph of the Newtonian revolution from a dire supernatural omen to a predictable element of the universe's clockwork-remains a recurring symbol of the scientific age of the Enlightenment. His comet is hurtling through space at some 20,000 miles per hour and won't be back until 2061. But it can remind us of past epochs and everlastingly of Halley's contributions to geophysics and the world of science writ large. For a start, Halley completed a series of little known sea voyages in his effort to solve one of his life-long quests: the problem of determining longitude at sea. On the basis of his earlier theories on magnetism, his approach entailed mapping the magnetic deviation across the test-bed of the Atlantic Ocean. In this paper, his findings from the voyages, which technically comprised the first science mission funded by a government and stand as the forerunner of all big science projects, will be reconsidered and put into the context of today's notions about terrestrial magnetism, including the geodynamo. To this day, scientists remain perplexed about exactly how core's dynamo regenerates its energy. When Halley was sailing his vessel, the Paramore, across the North Atlantic and making the first charts of geomagnetism, little did he ever imagine magnetism would underpin today's stunning advances in information technology and electromagnetic engineering. Magnetism also offers ways to study phase transitions, random disorder, and physics in low dimensions, which looks at particle interactions at ever higher energies in order to essentially study matter at smaller and smaller size scales. The presentation

  20. Questions of fairness and anti-doping in US cycling: The contrasting experiences of professionals and amateurs

    Science.gov (United States)

    Henning, April D.; Dimeo, Paul

    2015-01-01

    Abstract The focus of researchers, media and policy on doping in cycling is often limited to the professional level of the sport. However, anti-doping test results since 2001 demonstrate that banned substances are also used by US cyclists at lower levels of the sport, necessitating a broader view of the patterns and motivations of substance use within the sport. In this article, we describe and explain the doping culture that has emerged in domestic US cycling among amateur and semi-professionals. Through analysis of records from sports governing bodies and journalistic reports, we assess the range of violation types and discuss the detection and punishing of riders who were not proven to have intended to cheat but became “collateral damage” in the war on doping. We argue that the phenomenon of doping is more complex than what has been shown to occur in elite sport, as it includes a wider variety of behaviours, situations and motivations. We develop fresh insights by examining cases where doping has been accidental, intrinsically motivated, non-performance enhancing or the result of prescribed medical treatments banned by anti-doping authorities. Such trends call into question the fairness of anti-doping measures, and we discuss the possibility of developing localised solutions to testing and sanctioning amateur athletes. PMID:26692658