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  1. The Stars Belong to Everyone: The rhetorical practices of astronomer and science writer Dr. Helen Sawyer Hogg (1905--1993)

    Science.gov (United States)

    Cahill, Maria J.

    Astronomer and science writer Dr. Helen Sawyer Hogg (University of Toronto) reached a variety of audiences through different rhetorical forms. She communicated to her colleagues through her scholarly writings; she reached out to students and the public through her Toronto Star newspaper column entitled "With the Stars," which she authored for thirty years; she wrote The Stars Belong to Everyone , a book that speaks to a lay audience; she hosted a successful television series entitled Ideas ; and she delivered numerous speeches at scientific conferences, professional women's associations, school programs, libraries, and other venues. Adapting technical information for different audiences is at the heart of technical communication, and Sawyer Hogg's work exemplifies adaptation as she moves from writing for the scientific community (as in her articles on globular cluster research) to science writing for lay audiences (as in her newspaper column, book, and script for her television series). Initially she developed her sense of audience through a male perspective informed largely by her scholarly work with two men (Harlow Shapley and her husband, Frank Hogg) as well as the pervasive masculine culture of academic science. This dissertation situates Sawyer Hogg in what is slowly becoming a canon of technical communication scholarship on female scientists. Toward this end, I discuss how she rhetorically engaged two different audiences, one scholarly and one popular, how Sawyer Hogg translated male dominated scientific rhetoric to writing for the public, and how science writing helped her achieve her professional goals. Complementing the archival research in addressing the questions of this study, I employ social construction analysis (also known as the social perspective) for my research methodology. She was ahead of her time and embodied the social perspective years before its definition as a rhetorical concept. In short, my study illuminates one scientific woman's voice

  2. The past, present, and future of paediatric cardiology training at the Johns Hopkins Hospital, in the tradition of Dr Helen Taussig.

    Science.gov (United States)

    Beasley, Gary S; Murphy, Anne M; Brenner, Joel I; Ravekes, William J

    2016-12-01

    Johns Hopkins has been a leader in paediatric cardiology for over 85 years. In the 1940s, Dr Helen Taussig began training fellows in paediatric cardiology at Johns Hopkins at a time when the diagnosis and treatment of CHD were in the earliest stage. Under her leadership, the fellowship developed a strong foundation that has continued to evolve to meet the current needs of learners and educators. In the current era, the Johns Hopkins programme implements the current theories of adult education and actively engages our fellows in learning as well as teaching. The programme uses techniques such as flipped classroom, structured case-based small-group learning, observed and structured clinical examination, simulations, and innovative educational technology. These strategies combined with our faculty and rich history give our fellows a unique educational experience.

  3. Gorgias's "Helen" Revisited.

    Science.gov (United States)

    Schiappa, Edward

    1995-01-01

    Argues that identifying Gorgias's "Helen" as an epideictic speech is misleading; the speech is not veiled defense of the "Art of Rhetoric"; Gorgias may have inaugurated the prose genre of encomia; and "Helen"'s most significant theoretical contribution is to offer a secular account of the workings of the logos that…

  4. The Ghost Tradition: Helen Of Troy In The Elizabethan Era

    Directory of Open Access Journals (Sweden)

    RADUCANU ADRIANA

    2014-12-01

    Full Text Available Reputedly the most beautiful woman who has ever lived, Helen of Troy (or Sparta is less well known for her elusive, ghost-like dimension. Homer wrote that the greatest war of Western classical antiquity started because of Helen's adultery followed by her elopement to Troy. Other ancient writers and historians, among theme Aeschylus, Stesichorus, Hesiod, Pausanias, Aristophanes, Euripides and Gorgias of Leontini, challenged the Homeric version, in various ways and attempted to exonerate Helen either by focusing on her phantom/ ghost/ as the generic object of man's desire and scorn or by casting doubt on the mechanisms of the blaming process. This paper argues that the Elizabethans Christopher Marlowe and William Shakespeare adopted and adapted the anti-Homer version of the depiction of Helen, what I here call “the ancient Helen ghost tradition”; nevertheless, in so doing they further reinforced the character's demonic features and paradoxically achieved a return to the adulterous Homeric Helen.

  5. Bereaved Employee: Returning to Work

    Science.gov (United States)

    ... Work Working Through Grief About Us The Bereaved Employee: Returning to Work By Helen Fitzgerald, CT After ... One employer called a grief therapist to help employees after a co-worker reported the death of ...

  6. Helen Mirreni kuningannad / Jaanus Noormets

    Index Scriptorium Estoniae

    Noormets, Jaanus

    2007-01-01

    Stephen Frearsi mängufilm "Kuninganna" ("The Queen") : stsenarist Peter Morgan : kuninganna Elizabeth II kehastab Helen Mirren, peaminister Tony Blair'i Michael Sheen : Suurbritannia, 2006. H. Mirreni filmiauhindadest ja Oscarivõimalustest selle rolli eest

  7. Helene: A Plastic Model

    Science.gov (United States)

    Umurhan, O. M.; Moore, J. M.; Howard, A. D.; Schenk, P.; White, O. L.

    2014-12-01

    Helene, the Saturnian L4 Trojan satellite co-orbiting Dionne and sitting within the E-ring, possesses an unusual morphology characteristic of broad km-scale basins and depressions and a generally smooth surface patterned with streaks and grooves which are indicative of non-typical mass transport. Elevation angles do not appear to exceed 10o at most. The nature and origin of the surface materials forming these grooved patterns is unknown. Given the low surface gravity (plastic-like flow like a Bingham fluid, we setup and test a number of likely scenarios to explain the observations. The numerical results qualitatively indicate that treating the mass-wasting materials as a Bingham material reproduces many of the qualitative features observed. We also find that in those simulations in which accretion is concomitant with Bingham mass-wasting, the long time-evolution of the surface flow shows intermittency in the total surface activity (defined as total surface integral of the absolute magnitude of the mass-flux). Detailed analyses identify the locations where this activity is most pronounced and we will discuss these and its implications in further detail.

  8. Obituary: Helen Dodson Prince, 1905-2002

    Science.gov (United States)

    Lindner, Rudi Paul

    2009-01-01

    Helen Dodson Prince, a pioneer in the observation of solar flares, a pioneer in women's rise in the profession of astronomy, and a respected and revered educator of future astronomers, died on 4 February 2002 in Arlington, Virginia. Helen Dodson was born in Baltimore, Maryland, on 31 December 1905. Her parents were Helen Walter and Henry Clay Dodson. Helen went to Goucher College in nearby Towson with a full scholarship in mathematics. She turned to astronomy under the influence of a legendary teacher, Professor Florence P. Lewis, and she graduated in 1927. Funded by grants and private charity, she earned the Ph.D. in astronomy at the University of Michigan under the direction of Heber Doust Curtis in 1933. Dodson taught at Wellesley College from 1933 until 1943, when she went on leave to spend the last three years of World War II at the MIT Radiation Laboratory. She returned to Goucher after the war as professor of astronomy and mathematics, and in 1947 she came back to Michigan both as professor of astronomy and staff member of the McMath-Hulbert Observatory, of which she became associate director. In 1976 she retired from Michigan and spent her later years in Alexandria, Virginia. In 1932 Dodson held the Dean Van Meter fellowship from Goucher; in 1954 she received the Annie Jump Cannon Prize from the AAS; and in 1974 The University of Michigan honored her with its Faculty Distinguished Achievement Award. She published over 130 articles, mostly on her research specialty, solar flares. Dodson's interest in the Sun began at Michigan, although her dissertation was, like so many Michigan dissertations of the era, on stellar spectroscopy, "A Study of the Spectrum of 25 Orionis." She came to Michigan during the establishment and growth of the solar observatory at Lake Angelus, the creation of three gifted and industrious amateurs. Heber Curtis fostered the growth of the McMath-Hulbert enterprise and brought it into the University. Dodson's solar activity grew as a

  9. Mount St. Helens aerosol evolution

    Energy Technology Data Exchange (ETDEWEB)

    Oberbeck, V.R.; Farlow, N.H.

    1982-08-01

    Stratospheric aerosol samples were collected using a wire impactor during the year following the eruption of Mount St. Helens. Analysis of samples shows that aerosol volume increased for 6 months due to gas-to-particle conversion and then decreased to background levels in the following 6 months.

  10. Mount St. Helens aerosol evolution

    Energy Technology Data Exchange (ETDEWEB)

    Oberbeck, V.R.; Farlow, N.H.; Fong, W.; Snetsinger, K.G.; Ferry, G.V.; Hayes, D.M.

    1982-09-01

    Stratospheric aerosol samples were collected using a wire impactor during the year following the eruption of Mt. St. Helens. Analysis of samples show that aerosol volume increased for 6 months due to gas-to-particle conversion and then decreased to background levels in the following 6 months.

  11. Redox pioneer:Professor Christine Helen Foyer.

    Science.gov (United States)

    Del Río, Luis A

    2011-10-15

    Dr. Christine Foyer (B.Sc. 1974; Ph.D. 1977) is recognized here as a Redox Pioneer because she has published an article on redox biology that has been cited more than 1000 times, 4 other articles that have been cited more than 500 times, and a further 32 articles that have been each cited more than 100 times. During her Ph.D. at the Kings College, University of London, United Kingdom, Dr. Foyer discovered that ascorbate and glutathione and enzymes linking NADPH, glutathione, and ascorbate are localized in isolated chloroplast preparations. These observations pioneered the discovery of the ascorbate-glutathione cycle, now known as Foyer-Halliwell-Asada pathway after the names of the three major contributors, a crucial mechanism for H(2)O(2) metabolism in both animals and plants. Dr. Foyer has made a very significant contribution to our current understanding of the crucial roles of ascorbate and glutathione in redox biology, particularly in relation to photosynthesis, respiration, and chloroplast and mitochondrial redox signaling networks. "My view is that science…is compulsive and you have to keep with it all the time and not get despondent when things do not work well. Being passionate about science is what carries you through the hard times so that it isn't so much work, as a hobby that you do for a living. It is the thrill of achieving a better understanding and finding real pleasure in putting new ideas together, explaining data and passing on knowledge that keeps you going no matter what!" --Prof. Christine Helen Foyer.

  12. Unruly Woman: An Interview with Helen Lewis.

    Science.gov (United States)

    Briscoe, Lori; Collins, Erica S.; Deal, Amanda; Hancock, Ron; McGraw, Kristyn; Lewis, Helen

    2000-01-01

    Overviews the career of Helen Lewis as sociologist, social activist, teacher, writer, researcher, and mentor. Helen Lewis discusses growing up in segregated Georgia, her unorthodox approach to education, her fight for social and economic equality, her instrumental role in the development of Appalachian Studies programs, and how social activism…

  13. Special report: Mt. St. Helens

    Science.gov (United States)

    Mt. St Helens Volcano, Cascade Range, Southern Washington, USA (46.20°N, 122.18°W.) All times are local (GMT - 7 h through October 24, GMT - 8 h thereafter. Lava extrusion that probably began October 30 added a new lobe to the composite dome in the crater of Mt. St. Helens. After lava extrusion ended September 10 (see September 22 Eos), rates of deformation in the crater remained low for several weeks, as they had after earlier extrusion episodes. Sulfur dioxide emission ranged from 70 to 190 tons per day between October 9 and 24, but showed no particular trends. Inflation of the dome has caused small thrust faults to form in the surrounding crater floor. In early October the most active thrust, south of the dome, was moving at about 1.5 cm/d, and stations on the north crater rampart showed outward movement of about 0.5 cm/d. By October 24 these rates had increased to 14.5 and 3.5-4 cm/d, respectively, and leveling profiles perpendicular to the dome showed that crater floor tilt rates had reached 400-500 μrad/d, prompting the U.S. Geological Survey (USGS) to issue an advisory prediction of renewed lava extrusion within the next two weeks.

  14. May 1980 Mount Saint Helens, USA Images

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — An earthquake occurred at 15 32 UT, only seconds before the explosion that began the eruption of Mount St. Helens volcano. This eruption and blast blew off the top...

  15. Helen Dilloni koduaed Dublinis / Virve Poom

    Index Scriptorium Estoniae

    Poom, Virve

    2015-01-01

    Tuntud iiri aiakujundaja Helen Dilloni koduaeda Dublini keskklinnas Sandford Terrace'il peetakse üheks parimaks linnaaiaks. Kaasaegsete aedade hulgas paistab see silma just oma erilisuse ja omanäolisusega

  16. HELEN brings Latin Americans to CERN

    CERN Multimedia

    Maximiliem Brice

    2006-01-01

    Latin American students who have arrived at CERN to take up fellowships during the first months of 2006 relax in front of the LHC collaboration buildings, together with the deputy coordinator of HELEN, Veronica Riquer (centre), from Rome University and INFN. The training programme supported by the High Energy Physics Latin American- European Network (HELEN) is in full swing. For 2006, the programme has assigned about 70 fellowships to be spent at CERN by Latin American students and young physicists.

  17. Inpatient management of borderline personality disorder at Helen ...

    African Journals Online (AJOL)

    Inpatient management of borderline personality disorder at Helen Joseph Hospital, Johannesburg. ... South African Journal of Psychiatry ... to the acute inpatient psychiatric assessment unit at the Helen Joseph Hospital, in Johannesburg, over ...

  18. Making sense of Mount St. Helens

    Science.gov (United States)

    Steve Nash

    2010-01-01

    The eruption of Mount St. Helens in 1980 resulted in "a grand experiment that you could never have gotten anybody to fund," says Forest Service ecologist Charles Crisafulli. "Everything's new. It's a new landform." Unlike most misbehaving volcanoes, this one provided an accessible laboratory right along the Interstate-5 corridor, with the...

  19. The Helen logos and Herodotus’ Fingerprint

    NARCIS (Netherlands)

    de Jong, I.; Baragwanath, E.; de Bakker, M.

    2012-01-01

    Herodotus' discussion of the Trojan War in Histories 2.112-20 consists mainly of two strands: a historiographical evaluation of his sources, Homer and the Egyptian priests (116-17, 120), and the presentation of an alternative version (Helen never went to Troy but stayed in Egypt), as heard from the

  20. Satellite sar detection of hurricane helene (2006)

    DEFF Research Database (Denmark)

    Ju, Lian; Cheng, Yongcun; Xu, Qing

    2013-01-01

    In this paper, the wind structure of hurricane Helene (2006) over the Atlantic Ocean is investigated from a C-band RADARSAT-1 synthetic aperture radar (SAR) image acquired on 20 September 2006. First, the characteristics, e.g., the center, scale and area of the hurricane eye (HE) are determined. ...... observations from the stepped frequency microwave radiometer (SFMR) on NOAA P3 aircraft. All the results show the capability of hurricane monitoring by satellite SAR. Copyright © 2013 by the International Society of Offshore and Polar Engineers (ISOPE)....

  1. Human radiation studies: Remembering the early years. Oral history of Oncologist Helen Vodopick, M.D., December 28, 1994

    International Nuclear Information System (INIS)

    1995-08-01

    This report is a transcript of an interview with Dr. Helen Vodopick by representatives of the US DOE Office of Human Radiation Experiments. Dr. Vodopick was chosen for this interview because of her involvement with the Oak Ridge Institute of Nuclear Studies (ORINS) and Oak Ridge Associated Universities (ORAU) experimental cancer-therapy program involving total-body irradiation. After a short biographical sketch Dr. Vodopick relates her remembrances of the Medium-Exposure-Rate Total Body Irradiator (METBI), ORINS radioisotope tracer studies, treatment of cancer patients with the METBI, radiation treatment for leukemia patients, bone marrow treatment of leukemia, the Low-Exposure-Rate Total Body Irradiation (LETBI), treatment of radiation accident victims at ORAU, research with radioactive phosphorus and sulfur, and public opinion issues

  2. The opsis of Helen: Performative Intertextuality in Euripides

    Directory of Open Access Journals (Sweden)

    Aspasia Skouroumouni Stavrinou

    2015-02-01

    Full Text Available Features of the play’s staging, costume, and gestures achieve a series of allusions to comparable features in the genre of comedy and thus reinforce the comic elements of the plot and characters of Helen.

  3. Support for NUMA hardware in HelenOS

    OpenAIRE

    Horký, Vojtěch

    2011-01-01

    The goal of this master thesis is to extend HelenOS operating system with the support for ccNUMA hardware. The text of the thesis contains a brief introduction to ccNUMA hardware, an overview of NUMA features and relevant features of HelenOS (memory management, scheduling, etc.). The thesis analyses various design decisions of the implementation of NUMA support -- introducing the hardware topology into the kernel data structures, propagating this information to user space, thread affinity to ...

  4. Large Customers (DR Sellers)

    Energy Technology Data Exchange (ETDEWEB)

    Kiliccot, Sila [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2011-10-25

    State of the large customers for demand response integration of solar and wind into electric grid; openADR; CAISO; DR as a pseudo generation; commercial and industrial DR strategies; California regulations

  5. Helen Sirp - talent kodus ja võõrsil / Auri Jürna

    Index Scriptorium Estoniae

    Jürna, Auri, 1984-

    2013-01-01

    Eesti väljapanek "Ministry of Creative Affairs" Londoni moenädalal International Fashion Showcase. Väljapaneku autoriteks Helen Sirp, Kadri Kruus, Kristina Viirpalu, Kristian Steinberg, Karl Annus. Pikemalt Helen Sirbist

  6. Mineral dust transport toward Hurricane Helene (2006)

    Science.gov (United States)

    Schwendike, Juliane; Jones, Sarah C.; Vogel, Bernhard; Vogel, Heike

    2016-05-01

    This study investigates the transport of mineral dust from its source regions in West Africa toward the developing tropical cyclone Helene (2006) and diagnoses the resulting properties of the air influencing the tropical cyclonegenesis. The model system COSMO-ART (Consortium for Small-Scale Modelling-Aerosols and Reactive Trace gases) in which the emission and transport of mineral dust as well as the radiation feedback are taken into account, was used. The emission of mineral dust between 9 and 14 September 2006 occurred in association with the relatively strong monsoon flow and northeasterly trade winds, with gust fronts of convective systems over land, and with the Atlantic inflow. Additionally, increased surface wind speed was linked to orographical effects at the Algerian Mountains, Atlas Mountains, and the Hoggar. The dust, as part of the Saharan air layer, is transported at low levels by the monsoon flow, the Harmattan, the northeasterly trade winds, and the monsoon trough, and is transported upward in the convergence zone between Harmattan and monsoon flow, in the baroclinic zone along the West African coastline, and by convection. At around 700 hPa the dust is transported by the African easterly jet. Dry and dust-free air is found to the north-northwest of the developing tropical depression due to descent in an anticyclone. Based on the model data, it was possible to distinguish between dry (from the anticyclone), dry and dusty (from the Harmattan and northeasterly trade winds), and dusty and moist air (from the monsoon flow and in the tropical depression due to convection).

  7. Galande, Dr Sanjeev

    Indian Academy of Sciences (India)

    Elected: 2010 Section: General Biology. Galande, Dr Sanjeev Ph.D. (IISc). Date of birth: 20 September 1967. Specialization: Epigenetics, Chromatin Biology, Gene Regulation, Genomics and Proteomics Address: Centre for Excellence in Epigenetics, Indian Institute of Science Education, & Research, Dr Homi Bhabha Road, ...

  8. Drømmejobbet

    DEFF Research Database (Denmark)

    Harrebye, Silas

    2012-01-01

    Medarbejdere vil i fremtiden også kunne arbejde, mens de sover. Virksomheder tilbyder snart deres ansatte interne kurser i ‘lucid dreaming’. Disse giver mulighed for, at man i sine drømme bliver bevidst om, at man drømmer og således kan manipulere dem. Det skal nu udnyttes. Management...

  9. Helen M. Walker: Influential in 1929 and Still Cited Today.

    Science.gov (United States)

    Rice, Marti H.; Stallings, William M.

    Helen M. Walker contributed to the field of educational research and statistics during a 55-year career. Born in Iowa in 1891, Walker earned a bachelor's degree from Iowa Wesleyan College and taught high school mathematics for nine years. She then taught at the University of Kansas while doing graduate work. One source noted that she was the first…

  10. Helen Lehismets võitis vaibakavandite konkursi / Lea Pruuli

    Index Scriptorium Estoniae

    Pruuli, Lea

    1999-01-01

    Tarbekunstimuuseumi vaibakavandite konkursil "Kootud pildid" valiti teostamiseks tekstiilikunstnik Helen Lehismetsa vaibakavand "Aed". Ostupreemia ئ Urmas Viigi kavandile "EW ja AW". Osalejad. Konkursile esitatud kavandeid ja vaibaks kootud peapreemiatööd eksponeeritakse Tarbekunstimuuseumis 22. okt. avataval näirtusel "Kootud pildid".

  11. Volcano ecology: flourishing on the flanks of Mount St. Helens

    Science.gov (United States)

    Rhonda Mazza; Charlie Crisafulli

    2016-01-01

    Mount St. Helens’ explosive eruption on May 18, 1980, was a pivotal moment in the field of disturbance ecology. The subsequent sustained, integrated research effort has shaped the development of volcano ecology, an emerging field of focused research. Excessive heat, burial, and impact force are some of the disturbance mechanisms following an eruption. They are also...

  12. Mount St. Helens 30 years later: a landscape reconfigured.

    Science.gov (United States)

    Rhonda Mazza

    2010-01-01

    On May 18, 1980, after two months of tremors, Mount St. Helens erupted spectacularly and profoundly changed a vast area surrounding the volcano. The north slope of the mountain catastrophically failed, forming the largest landslide witnessed in modern times. The largest lobe of this debris avalanche raced 14 miles down the Toutle River...

  13. Mount St. Helens: Still erupting lessons 31 years later

    Science.gov (United States)

    Rhonda Mazza; Charlie Crisafulli; Fred Swanson

    2011-01-01

    The massive volcanic eruption of Mount St. Helens 31 years ago provided the perfect backdrop for studying the earliest stages of forest development. Immediately after the eruption, some areas of the blast area were devoid of life. On other parts of the volcanic landscape, many species survived, although their numbers were greatly reduced. Reassembly began at many...

  14. 25 years of ecological change at Mount St. Helens.

    Science.gov (United States)

    V.H. Dale; C.M. Crisafulli; F.J. Swanson

    2005-01-01

    18 May 2005 marks the 25th anniversary of the massive eruption of Mount St. Helens. This eruption involved diverse geological processes (1) that disturbed forests, meadows, lakes, an drivers (2) (see the figure). A huge landslide and searing flows of hot gases and pumic framents (pyroclastic flows) inundated 60 km2 of land, obliterating...

  15. Thiagarajan, Dr Pazhamaneri Subramaniam

    Indian Academy of Sciences (India)

    Elected: 1995 Section: Mathematical Sciences. Thiagarajan, Dr Pazhamaneri Subramaniam Ph.D. (Rice), FNASc. Date of birth: 9 November 1948. Specialization: Distributed Probabilistic Systems, Hybrid Systems and Computational Systems Biology Address: Laboratory of System Pharmacology, Harvard Medical School, ...

  16. Mishra, Dr A C

    Indian Academy of Sciences (India)

    Elected: 2009 Section: Medicine. Mishra, Dr A C . Ph.D. (Pune), FNA. Date of birth: 1 July 1950. Specialization: Human Viral Infection & Zoonotic Diseases, Public Health Address: Director, Interactive Research School of Health Affairs, Bharati Vidyapeeth University, ...

  17. Hazarika, Dr Nabajit

    Indian Academy of Sciences (India)

    Hazarika, Dr Nabajit Ph.D. (Tezpur). Date of birth: 17 January 1986. Specialization: Remote Sensing, GIS Applications, Fluvial Geomorphology, Landuse Landcover Studies Address: Dept. of Environmental Science, Nagaland University, Lumami 798 627, Nagaland Contact: Residence: 94354 81256, 97066 71256

  18. Gaia DR2 documentation

    Science.gov (United States)

    van Leeuwen, F.; de Bruijne, J. H. J.; Arenou, F.; Bakker, J.; Blomme, R.; Busso, G.; Cacciari, C.; Castañeda, J.; Cellino, A.; Clotet, M.; Comoretto, G.; Eyer, L.; González-Núñez, J.; Guy, L.; Hambly, N.; Hobbs, D.; van Leeuwen, M.; Luri, X.; Manteiga, M.; Pourbaix, D.; Roegiers, T.; Salgado, J.; Sartoretti, P.; Tanga, P.; Ulla, A.; Utrilla Molina, E.; Abreu, A.; Altmann, M.; Andrae, R.; Antoja, T.; Audard, M.; Babusiaux, C.; Bailer-Jones, C. A. L.; Barache, C.; Bastian, U.; Beck, M.; Berthier, J.; Bianchi, L.; Biermann, M.; Bombrun, A.; Bossini, D.; Breddels, M.; Brown, A. G. A.; Busonero, D.; Butkevich, A.; Cantat-Gaudin, T.; Carrasco, J. M.; Cheek, N.; Clementini, G.; Creevey, O.; Crowley, C.; David, M.; Davidson, M.; De Angeli, F.; De Ridder, J.; Delbò, M.; Dell'Oro, A.; Diakité, S.; Distefano, E.; Drimmel, R.; Durán, J.; Evans, D. W.; Fabricius, C.; Fabrizio, M.; Fernández-Hernández, J.; Findeisen, K.; Fleitas, J.; Fouesneau, M.; Galluccio, L.; Gracia-Abril, G.; Guerra, R.; Gutiérrez-Sánchez, R.; Helmi, A.; Hernandez, J.; Holl, B.; Hutton, A.; Jean-Antoine-Piccolo, A.; Jevardat de Fombelle, G.; Joliet, E.; Jordi, C.; Juhász, Á.; Klioner, S.; Löffler, W.; Lammers, U.; Lanzafame, A.; Lebzelter, T.; Leclerc, N.; Lecoeur-Taïbi, I.; Lindegren, L.; Marinoni, S.; Marrese, P. M.; Mary, N.; Massari, D.; Messineo, R.; Michalik, D.; Mignard, F.; Molinaro, R.; Molnár, L.; Montegriffo, P.; Mora, A.; Mowlavi, N.; Muinonen, K.; Muraveva, T.; Nienartowicz, K.; Ordenovic, C.; Pancino, E.; Panem, C.; Pauwels, T.; Petit, J.; Plachy, E.; Portell, J.; Racero, E.; Regibo, S.; Reylé, C.; Rimoldini, L.; Ripepi, V.; Riva, A.; Robichon, N.; Robin, A.; Roelens, M.; Romero-Gómez, M.; Sarro, L.; Seabroke, G.; Segovia, J. C.; Siddiqui, H.; Smart, R.; Smith, K.; Sordo, R.; Soria, S.; Spoto, F.; Stephenson, C.; Turon, C.; Vallenari, A.; Veljanoski, J.; Voutsinas, S.

    2018-04-01

    The second Gaia data release, Gaia DR2, encompasses astrometry, photometry, radial velocities, astrophysical parameters (stellar effective temperature, extinction, reddening, radius, and luminosity), and variability information plus astrometry and photometry for a sample of pre-selected bodies in the solar system. The data collected during the first 22 months of the nominal, five-year mission have been processed by the Gaia Data Processing and Analysis Consortium (DPAC), resulting into this second data release. A summary of the release properties is provided in Gaia Collaboration et al. (2018b). The overall scientific validation of the data is described in Arenou et al. (2018). Background information on the mission and the spacecraft can be found in Gaia Collaboration et al. (2016), with a more detailed presentation of the Radial Velocity Spectrometer (RVS) in Cropper et al. (2018). In addition, Gaia DR2 is accompanied by various, dedicated papers that describe the processing and validation of the various data products. Four more Gaia Collaboration papers present a glimpse of the scientific richness of the data. In addition to this set of refereed publications, this documentation provides a detailed, complete overview of the processing and validation of the Gaia DR2 data. Gaia data, from both Gaia DR1 and Gaia DR2, can be retrieved from the Gaia archive, which is accessible from https://archives.esac.esa.int/gaia. The archive also provides various tutorials on data access and data queries plus an integrated data model (i.e., description of the various fields in the data tables). In addition, Luri et al. (2018) provide concrete advice on how to deal with Gaia astrometry, with recommendations on how best to estimate distances from parallaxes. The Gaia archive features an enhanced visualisation service which can be used for quick initial explorations of the entire Gaia DR2 data set. Pre-computed cross matches between Gaia DR2 and a selected set of large surveys are

  19. Dr Math at your service

    CSIR Research Space (South Africa)

    Butgereit, L

    2012-10-01

    Full Text Available In this presentation the author explains how the Dr Math service works; how tutors are recruited to act as Dr Math; and how school pupils can reach Dr Math for help with their mathematics homework....

  20. FOREWORD: Dr Trevor J Hicks Dr Trevor J Hicks

    Science.gov (United States)

    Goossens, Darren

    2009-03-01

    This issue of Journal of Physics: Condensed Matter has been assembled to recognize the valuable contribution of Dr Trevor J Hicks to the field of neutron scattering and magnetism. Trevor began his study of magnetism as a PhD student at Monash University in Melbourne in the early 1960s, working with Professor Jack Smith. From the very beginning magnetism in alloys, and disordered systems in general, became a key aspect of his career. After a postdoctoral position at Harwell working with Dr Graeme Low Trevor returned to Australia and took up a position with Monash. He soon became a key figure in developing the capability for neutron scattering using the HIFAR reactor at the Australian Atomic Energy Commission, now the Australian Nuclear Science and Technology Organisation, ANSTO. The instrumentation was always developed to further his studies of magnetism. The development of polarization analysis measurements of diffuse magnetic scattering, first using iron filters and then his own design of supermirror benders for beam polarization, took place through the 1970s, 1980s and into the 1990s. Throughout this time, Trevor mentored a series of PhD students and postdoctoral fellows, many of whom have contributed to this issue (and, indeed, guest edited it). As befits a scientist and university academic for whom teaching has always been important, Trevor has not only created a strong body of significant research, he has also made a major contribution to preparing several generations of neutron scattering scientists, and this issue reflects that. When I approached Journal of Physics: Condensed Matter with a proposal for an issue in honour of Trevor, the response was immediate and positive. It is with great pleasure that I present the result of that proposal. The great diversity of the content, all centred on neutron scattering and magnetism, reflects the breadth of Trevor's own career and of the scientists with whom he has interacted. Finally, I would like to make some

  1. Dr Pugh: a poisoner?

    Science.gov (United States)

    Paull, J D; Morris, G M

    2012-07-01

    On 16 February 1845 the Reverend W. H. Browne, rector of St John's Church in Launceston, Van Diemen's Land, wrote in his journal, "My dear Wife died very suddenly almost immediately after and in consequence of taking a preparation of Hyd. Cyan. Acid prepared & supplied by Dr Pugh". This journal entry raises a number of questions. Was Dr Pugh treating a condition which he thought merited that treatment or was it a ghastly mistake? Was Caroline Browne suffering from pulmonary tuberculosis? Was hydrocyanic acid an accepted treatment at that time? Did Mrs Browne take the wrong dose? Was an incorrect concentration of the drug prepared by Dr Pugh? Did he use the wrong pharmacopoeia in preparing the hydrocyanic acid? Why was there no inquest? Only some of these questions can be answered.

  2. The DR-2 project

    DEFF Research Database (Denmark)

    Ølgaard, Povl Lebeck

    2003-01-01

    state of the reactor and to determine, which radionuclides remain where in the reactor in what amounts. The first part of the reactor to be investigated was the reactor tank. The lids at the reactor top wereremoved, air samples taken and smear test made in the tank. Then the control rods, the magnet....... At the start of the project the activity in DR-2 was about 45-50 GBq. Now it is about 5-10 GBq. Based on the results of the DR-2 project it is believed that the reactor can readily bedismantled and decommissioned....

  3. Helen Hart, remarkable plant pathologist (1900-1971).

    Science.gov (United States)

    Wilcoxson, R D

    1996-01-01

    Helen Hart was a Professor of Plant Pathology at the University of Minnesota from 1924 until retirement in 1966. Born in Janeville, Wisconsin, she died at Grants Pass, Oregon. Her scholarly research concentrated on wheat stem rust to understand host pathogen relationships and to develop rust-resistant cultivars. She did not teach formal courses but was heavily involved in making seminars a vital part of instruction, in teaching languages needed for graduate studies, and as an informal advisor for most rust research theses. She had common sense, excellent scientific judgment, and sound instincts on personnel matters that served the department well. A talented science writer, Hart served as editor of hundreds of theses and departmental manuscripts for publication. Her writing and editing skills were used as associate editor of Phytopathology for two years and as editor-in-chief from 1944-1951. A strong advocate of The American Phytopathological Society, Helen Hart served on Council for 12 years and as President in 1956. Helen Hart was a great professional scientist who had a far-reaching impact on plant pathology during the twentieth century.

  4. Gupta, Dr Chhitar Mal

    Indian Academy of Sciences (India)

    Gupta, Dr Chhitar Mal Ph.D. (Agra), FNA, FNASc, FAMS, FTWAS Council Service: 1998-2000. Date of birth: 1 September 1944. Specialization: Membrane Biology, Bio-organic Chemistry and Molecular Biophysics Address: Distinguished Professor and Infosys Chair, Institute of Bioinformatics & Applied Biotechnology, Room ...

  5. Mohanty, Dr Debasisa

    Indian Academy of Sciences (India)

    Home; Fellowship. Fellow Profile. Elected: 2012 Section: General Biology. Mohanty, Dr Debasisa Ph.D. (IISc), FNASc, FNA. Date of birth: 30 November 1966. Specialization: Bioinformatics, Computational & Structural Biology, Biophysics Address: National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110 067, ...

  6. Bal, Dr Dattatreya Vaman

    Indian Academy of Sciences (India)

    Home; Fellowship. Fellow Profile. Elected: 1943 Section: Animal Sciences. Bal, Dr Dattatreya Vaman Ph.D. (Liverpool). Date of birth: 25 August 1905. Date of death: 1 April 1999. Specialization: Marine Zoology, Oceanography. Fisheries and Aquaculture Last known address: 104, Swaroop Complex, Karve Road, Pune 411 ...

  7. Banerjee, Dr Srikumar

    Indian Academy of Sciences (India)

    Fellow Profile. Elected: 1990 Section: Engineering & Technology. Banerjee, Dr Srikumar Ph.D. (IIT, Kharagpur), FNA, FNAE, FNASc, FTWAS Council Service: 2007-12; Vice-President: 2010-12. Date of birth: 25 April 1946. Specialization: Materials Science, Physical Metallurgy, Phase Transformations, Nuclear Fuel Cycle, ...

  8. Drømmebilleder

    DEFF Research Database (Denmark)

    Fausing, Bent

    2014-01-01

    Bogen beskriver i en række intense analyser forbindelsen mellem ydre og indre billeder: altså mellem de moderne mediers billedverden og drømmens og erindringens indre billeder. I fokus for undersøgelsen er desuden kønnet, altså hvordan billeder viser, omformer eller skjuler kønnet, 'det andet', s...

  9. Agrewala, Dr Javed Naim

    Indian Academy of Sciences (India)

    Agrewala, Dr Javed Naim Ph.D. (Agra), FNA, FNASc. Date of birth: 14 May 1961. Specialization: Immunology, Vaccine, Drug Discovery Address: Chief Scientist, Immunology Laboratory, Institute of Microbial Technology, Sector 39A, Chandigarh 160 036, U.T.. Contact: Office: (0172) 666 5261. Residence: (0172) 666 5514

  10. Anil, Dr Arga Chandrashekar

    Indian Academy of Sciences (India)

    Home; Fellowship. Fellow Profile. Elected: 2015 Section: Earth & Planetary Sciences. Anil, Dr Arga Chandrashekar Ph.D. (Karnatak). Date of birth: 23 January 1959. Specialization: Biological Oceanography, Marine Ecology, Marine Biology Address: Chief Scientist, National Institute of Oceanography, Dona Paula 403 004, ...

  11. Prakash, Dr Vishweshwaraiah

    Indian Academy of Sciences (India)

    Prakash, Dr Vishweshwaraiah Ph.D. (Mysore), FNASc, FNAE, FRSC,FNAAS. Date of birth: 23 November 1951. Specialization: S&T Policy, Physical Biochemistry, Chemistry of Macromolecules, Biophysics of Proteins, Enzymes & Thermodynamics, Food Chemistry, Nutrition, Food Biotechnology and Food Science Address: ...

  12. Salunke, Dr Dinakar Mashnu

    Indian Academy of Sciences (India)

    Fellow Profile. Elected: 2001 Section: General Biology. Salunke, Dr Dinakar Mashnu Ph.D. (IISc), FNASc, FNA, FTWAS. Date of birth: 1 July 1955. Specialization: Structural Biology, Macromolecular Crystallography and Immunology Address: Director, International Centre for Genetic Engineering, & Biotechnology, Aruna Asaf ...

  13. Paranjpe, Dr Pramod Anand

    Indian Academy of Sciences (India)

    Elected: 1975 Section: Engineering & Technology. Paranjpe, Dr Pramod Anand D.Sc. Tech. (ETH Zurich). Date of birth: 1 April 1934. Specialization: Turbomachinery and Jet Propulsion Systems Address: 'Bahaar', 5, Hindustan Estate, Road No. 13, Kalyaninagar, Pune 411 006, Maharashtra Contact: Residence: (020) 2668 ...

  14. Bhawalkar, Dr Dilip Devidas

    Indian Academy of Sciences (India)

    Fellow Profile. Elected: 1986 Section: Physics. Bhawalkar, Dr Dilip Devidas Ph.D. (Southampton), FNA, FNASc. Date of birth: 16 October 1940. Specialization: Lasers and laser Instrumentation Address: 26, Paramanu Nagar, Indore 452 013, M.P.. Contact: Office: (0731) 232 2707. Residence: (0731) 232 0031. Mobile: 93032 ...

  15. Babu, Dr Cherukuri Raghavendra

    Indian Academy of Sciences (India)

    Fellow Profile. Elected: 1990 Section: Plant Sciences. Babu, Dr Cherukuri Raghavendra D.Phil. (Calcutta). Date of birth: 30 June 1940. Specialization: Biosystematics, Ecology and Population Genetics Address: Professor Emeritus, CEMDE, School of Environmental Studies, University of Delhi, Delhi 110 007, U.T.. Contact:

  16. Brahm Prakash, Dr

    Indian Academy of Sciences (India)

    Home; Fellowship. Fellow Profile. Elected: 1972 Section: Engineering & Technology. Brahm Prakash, Dr Ph.D. (Panjab), FNA 1974-76. Date of birth: 21 August 1912. Date of death: 3 January 1984. Specialization: Metallurgy. YouTube; Twitter; Facebook; Blog ...

  17. Budhani, Dr Ramesh Chandra

    Indian Academy of Sciences (India)

    Budhani, Dr Ramesh Chandra Ph.D. (IIT, Delhi), FNASc, FNA. Date of birth: 3 February 1955. Specialization: Renewable Energy, Nanoscale Systems, Experimental Condensed Matter Physics, Superconductivity and Magnetism Address: Department of Physics, Lasers & Photonics, Indian Institute of Technology, Kanpur 208 ...

  18. Ghosh, Dr Pushpito Kumar

    Indian Academy of Sciences (India)

    Home; Fellowship. Fellow Profile. Elected: 2010 Section: Chemistry. Ghosh, Dr Pushpito Kumar Ph.D. (Princeton). Date of birth: 29 May 1954. Specialization: Processes Research, Water Purification, Renewable Energy, R&D Management Address: A-604, Punit Park, Plot No. 182/C, Sector 17, Merol, Navi Mumbai 400 706, ...

  19. Varadarajan, Dr Srinivasan

    Indian Academy of Sciences (India)

    Elected: 1972 Section: Chemistry. Varadarajan, Dr Srinivasan Ph.D. (Delhi and Cantab), D.Sc. (h.c.), D.Litt. (h.c.), FNA, FNAE, FTWAS Council Service:1974-88; Vice-President: 1977-79; President: 1980-82. Date of birth: 31 March 1928. Specialization: Organic & Biological Chemistry, Molecular Biology, Engineering Design ...

  20. Brahmayya Sastry, Dr Podila

    Indian Academy of Sciences (India)

    Elected: 1978 Section: Medicine. Brahmayya Sastry, Dr Podila Ph.D. (McGill). Date of birth: 24 May 1913. Date of death: 28 May 1993. Specialization: Physiology, Neurophysiology and Placental Physiology Last known address: Sitaramanilayam, Plot No. 9, Doctors Co-Operative Housing Colony, Waltair, Visakhapatnam ...

  1. Majumdar, Dr Subeer Suhash

    Indian Academy of Sciences (India)

    Fellow Profile. Elected: 2014 Section: Animal Sciences. Majumdar, Dr Subeer Suhash Ph.D. (nagpur), FNA, FNASc. Date of birth: 21 May 1961. Specialization: Animal Biotechnology, Transgenic Animals, Endocrinology Address: Director, National Institute of Animal Biotechnology, Gopan Pally, Hyderabad 500 046, A.P.

  2. Sirsat, Dr Satyavati Motiram

    Indian Academy of Sciences (India)

    Sirsat, Dr Satyavati Motiram Ph.D. (Mumbai). Date of birth: 7 October 1925. Date of death: 10 July 2010. Specialization: Medical Research (Cancer) & Ultrastructural Pathology and Hospice Care of the Dying Last known address: Bhagirathi Sadan, 17th Road, Khar, Mumbai 400 052. YouTube · Twitter · Facebook · Blog ...

  3. Nandicoori, Dr Vinay Kumar

    Indian Academy of Sciences (India)

    Home; Fellowship. Fellow Profile. Elected: 2018 Section: General Biology. Nandicoori, Dr Vinay Kumar Ph.D. (IISc), FNASc. Date of birth: 1 March 1969. Specialization: Molecular & Cellular Biology, Cell Signalling, Cell Biology Address: National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110 067, U.T.; Contact ...

  4. Mukhopadhyay, Dr Amitabha

    Indian Academy of Sciences (India)

    Fellow Profile. Elected: 2010 Section: General Biology. Mukhopadhyay, Dr Amitabha Ph.D. (Jadavpur), FNASc, FNA. Date of birth: 5 February 1959. Specialization: Cell Biology, Host-Pathogen Interactions, Drug Delivery Address: Staff Scientist VII, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110 067, ...

  5. Gangal, Dr Sharad Vishwanath

    Indian Academy of Sciences (India)

    Gangal, Dr Sharad Vishwanath Ph.D. (Mumbai), FNASc. Date of birth: 2 May 1937. Specialization: Allergy, Immunology and Biochemistry Address: Lakshmi Niwas, Opp. Santoshi Mata Temple (B Cabin), Sane Guruji Path, Naupada, Thane 400 602, Maharashtra Contact: Residence: (022) 2537 6961. Mobile: 93249 24307

  6. Chitnis, Dr Chetan Eknath

    Indian Academy of Sciences (India)

    Home; Fellowship. Fellow Profile. Elected: 2009 Section: Medicine. Chitnis, Dr Chetan Eknath Ph.D. (UC, Berkeley), FNA. Date of birth: 3 April 1961. Specialization: Molecular Parasitology, Vaccine Development for Malaria and Molecular & Cell Biology Address: Head, Malaria Parasite Biology & Vaccine, Institut Pasteur, 28, ...

  7. Mukhopadhyay, Dr Sangita

    Indian Academy of Sciences (India)

    Elected: 2013 Section: Medicine. Mukhopadhyay, Dr Sangita Ph.D. (Utkal), FNASc. Date of birth: 1 January 1966. Specialization: Immunology, Cell Signalling, Communicable Diseases Address: Group Leader, Molecular Cell Biology, Centre for DNA Fingerprinting & Diagnostics, Nampally, Hyderabad 500 001, A.P.. Contact ...

  8. Bhandari, Dr Nita

    Indian Academy of Sciences (India)

    Elected: 2015 Section: Medicine. Bhandari, Dr Nita Ph.D. (JNU), FAMS. Date of birth: 9 November 1955. Specialization: Nutrition-Infection Interaction, Child Health, Nutritional Interventions, Clinical Evaluation of Vaccine Address: President & Director, Centre for Health R&D Society for Applied Studies, 45, Kalu Sarai, New ...

  9. Nageswara Rao, Dr Gullapalli

    Indian Academy of Sciences (India)

    Nageswara Rao, Dr Gullapalli M.D. (Opthal.) (AIIMS), FAMS, FACS, FRCS, FNASc. Date of birth: 1 September 1945. Specialization: Cornea, Community Eye Health and Eye Care Policy & Planning Address: Distinguished Chair of Eye Health, LV Prasad Eye Institute, LV Prasad Marg, Banjara Hills, Hyderabad 500 034, A.P.

  10. Chandrasekaran, Dr Chidambara

    Indian Academy of Sciences (India)

    Fellow Profile. Elected: 1945 Section: Mathematical Sciences. Chandrasekaran, Dr Chidambara Ph.D. (London) 1962-64. Date of birth: 30 October 1911. Date of death: 4 January 2000. Specialization: Statistics, Public Health and Demography Last known address: 'Sri Kripa', 79/3, Benson Cross Road, Bengaluru 560 046.

  11. Chandrashekar, Dr Tavarekere Kalliah

    Indian Academy of Sciences (India)

    Fellow Profile. Elected: 2000 Section: Chemistry. Chandrashekar, Dr Tavarekere Kalliah Ph.D. (IISc), FNASc, FNA, FTWAS Council Service: 2013-15. Date of birth: 1 January 1956. Specialization: Bio-inorganic Chemistry, Synthetic Inorganic Chemistry and Catalysis Address: Senior Professor, School of Chemical Sciences, ...

  12. Watve, Dr Milind Gajanan

    Indian Academy of Sciences (India)

    Date of birth: 12 December 1957. Specialization: Wildlife Ecology & Animal Cognition, Evolutionary Biology, Computational Biology and Microbial Diversity Address: Professor, Biology, Indian Institute of Science Education & Research, Dr Homi Bhabha Road, Pashan, Pune 411 008, Maharashtra Contact: Office: (020) 2590 ...

  13. Gangal, Dr Sudha Gajanan

    Indian Academy of Sciences (India)

    Gangal, Dr Sudha Gajanan Ph.D. (Mumbai), FNA Council Service: 1995-97. Date of birth: 25 August 1934. Specialization: Cancer & Basic Immunology, Cell Biology and Genetic Diseases Address: 4, Mahavishnu Apartments, Dahanukar Colony A, Kothrud, Pune 411 029, Maharashtra Contact: Residence: (020) 2538 4382, ...

  14. Amarjit Singh, Dr

    Indian Academy of Sciences (India)

    Home; Fellowship. Fellow Profile. Elected: 1974 Section: Engineering & Technology. Amarjit Singh, Dr Ph.D. (Harvard). Date of birth: 19 November 1924. Specialization: Millimeter Wave Tubes, Microwave Tubes and Microwave Electronics Address: 12, Auburn Court, Vernon Hills, IL 60061, USA Contact: Residence: ...

  15. Chandy, Dr Mammen

    Indian Academy of Sciences (India)

    Home; Fellowship. Fellow Profile. Elected: 2008 Section: Medicine. Chandy, Dr Mammen MD (Madras), FRACP, FRCPA. Date of birth: 30 August 1949. Specialization: Hematology, Bone Marrow Transplantation and Molecular Genetics of Blood Diseases Address: Director, Tata Memorial Centre, 14, Major Arterial Road, ...

  16. Thakur, Dr Vikram Chandra

    Indian Academy of Sciences (India)

    Home; Fellowship. Fellow Profile. Elected: 1991 Section: Earth & Planetary Sciences. Thakur, Dr Vikram Chandra Ph.D. (London). Date of birth: 15 January 1940. Specialization: Structural Geology, Tectonics of Himalayan Geology and Active Tectonics Address: 9/12 (Lane 9), Ashirwad Eclave, Dehra Dun 248 001, ...

  17. Shivaji, Dr Sisinthy

    Indian Academy of Sciences (India)

    Home; Fellowship. Fellow Profile. Elected: 2011 Section: Animal Sciences. Shivaji, Dr Sisinthy Ph.D. (Delhi), FNASc. Date of birth: 17 June 1950. Specialization: Anti-Microbial Resistance, Gut Microbiome, Eye Disease, Conservation Biology, Mammalian Sperm Function, Bacterial Biodiversity of Cold Habitats, Cold ...

  18. Dikshit, Dr Madhu

    Indian Academy of Sciences (India)

    Home; Fellowship. Fellow Profile. Elected: 2000 Section: Medicine. Dikshit, Dr Madhu Ph.D. (Kanpur), FNASc, FNA Council Service: 2016. Date of birth: 21 November 1957. Specialization: Redox Biology, Cardiovascular Pharmacology, Molecular Pharmacology, Neutrophiles and Nitric Oxide Synthase Address: Department ...

  19. Chaddah, Dr Praveen

    Indian Academy of Sciences (India)

    Home; Fellowship. Fellow Profile. Elected: 1993 Section: Physics. Chaddah, Dr Praveen Ph.D. (Mumbai), FNA, FNASc. Date of birth: 20 December 1951. Specialization: Superconductivity, Low Temperature Physics and Phase Transitions Address: Flat 702, Block 24, Heritage City, MG Road (near Metro Station), Gurgaon ...

  20. Sengupta, Dr Sagar

    Indian Academy of Sciences (India)

    Sengupta, Dr Sagar Ph.D. (IISc), FNA, FNASc. Date of birth: 23 June 1968. Specialization: Cancer Biology, Cell Signalling, Mytochondrial Biology Address: National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110 067, U.T.. Contact: Office: (011) 2670 3786. Residence: (0124) 422 7107. Mobile: 93131 05470

  1. Sharma, Dr Ram Swaroop

    Indian Academy of Sciences (India)

    Home; Fellowship. Fellow Profile. Elected: 1989 Section: Earth & Planetary Sciences. Sharma, Dr Ram Swaroop Ph.D. (Basel), FNA. Date of birth: 10 July 1937. Specialization: Metamorphic Petrology, Mineralogy and Precambrian Geology Address: 70/36, Pratapnagar, Sector 7, Sanganer (RHB), Jaipur 302 033, Rajasthan

  2. Shastry, Dr B Sriram

    Indian Academy of Sciences (India)

    Shastry, Dr B Sriram Ph.D. (Mumbai), FNA, FNASc, FTWAS. Date of birth: 26 November 1950. Specialization: Strongly-Correlated Fermi Systems, Quantum Integrable Systems Address: Distinguished Professor, Department of Physics, University of California, Santa Cruz, CA 95064, USA Contact: Office: (+1-831) 459 5849

  3. Dr Satish R. Shetye

    Indian Academy of Sciences (India)

    Elected: 1992 Section: Earth & Planetary Sciences. Shetye, Dr Satish Ramnath Ph.D. (Washington), FNA, FNASc. Council Service: 1998-2003. Date of birth: 25 October 1950. Specialization: Physical Oceanography Address: Vice Chancellor, Goa University, Taleigao Plateau 403 206, Goa Contact: Office: (0832) 651 9001

  4. Valluri, Dr Sitaram Rao

    Indian Academy of Sciences (India)

    Home; Fellowship. Fellow Profile. Elected: 1971 Section: Engineering & Technology. Valluri, Dr Sitaram Rao Ph.D. (Caltech). Date of birth: 25 June 1924. Specialization: Metal Fatigue Address: 'Prashanthi', 659, 100 Feet Road, Indiranagar, Bengaluru 560 038, Karnataka Contact: Residence: (080) 2525 8294. YouTube ...

  5. Authikesavalu, Dr Munisamy

    Indian Academy of Sciences (India)

    Home; Fellowship. Fellow Profile. Elected: 1948 Section: Medicine. Authikesavalu, Dr Munisamy MBBS (Madras), MS (Minneapolis), FRCS. Date of birth: 16 August 1906. Date of death: 22 September 1973. Specialization: Experimental Surgery, Ophthalmology, Otolaryngology Last known address: 5-C, Lavelle Cross Road, ...

  6. Sharma, Dr Surendra Kumar

    Indian Academy of Sciences (India)

    Elected: 2010 Section: Medicine. Sharma, Dr Surendra Kumar Ph.D. (AIIMS), MD (PGIMER, Chandigarh), FNASc, FNA. Date of birth: 22 February 1951. Specialization: Environmental Medicine, Infectious Diseases, Internal Medicine, Pulmonary & Critical Care and Sleep Medicine Address: B-5/3, B Block, Sector 13, RK ...

  7. Jameel, Dr Shahid

    Indian Academy of Sciences (India)

    Jameel, Dr Shahid Ph.D. (Washington State Univ.), FNASc, FNA. Date of birth: 8 August 1957. Specialization: Molecular Biology and Molecular Virology Address: Chief Executive Officer, The Wellcome Trust/DBT India Alliance, 8-2-684/3/K/19, Kaushik Society, Road NO. 12, Banjara Hills, Hyderabad 500 034, A.P.. Contact:

  8. Santhanam, Dr Vaidyanathaswamy

    Indian Academy of Sciences (India)

    Elected: 1974 Section: Plant Sciences. Santhanam, Dr Vaidyanathaswamy Ph.D. (Madras). Date of birth: 31 July 1925. Specialization: Plant Breeding & Genetics, Research Management and Cotton Development Address: 'Shri Abhirami', 107, Venkataswamy Road West, R S Puram Post, Coimbatore 641 002, T.N.. Contact:

  9. Shivanna, Dr Kundaranahalli Ramalingaiah

    Indian Academy of Sciences (India)

    Elected: 1985 Section: Plant Sciences. Shivanna, Dr Kundaranahalli Ramalingaiah Ph.D. (Delhi), FNA, FNAAS, FNASc. Date of birth: 30 June 1940. Specialization: Pollen Biology, Reproductive Ecology and Conservation Biology Address: Odekar Farms, Nandihalli, via Thovinakere, Tumkur 572 138, Karnataka Contact:

  10. Barua, Dr Asok Kumar

    Indian Academy of Sciences (India)

    Elected: 1987 Section: Physics. Barua, Dr Asok Kumar Ph.D. (Calcutta). Date of birth: 1 July 1936. Specialization: Solid State Materials, Thin Film Technology and Thin Film Solar Cells Address: Honorary Emeritus Professor, Indian Institute of Engineering Science & Technology, Shibpur, Howrah 711 103, W.B.. Contact:

  11. Jena, Dr Prafulla Kumar

    Indian Academy of Sciences (India)

    Jena, Dr Prafulla Kumar Ph.D. (Utkal). Date of birth: 27 December 1931. Specialization: Extractive Metallurgy, Mineral Processing, Environmental Engineering and Materials Processing Address: Chairman, Institute of Advance Technology and Environmental Studies, 80A-831A Lewis Road, Bhubaneswar 751 002, Orissa

  12. David, Dr Joy Caesarina

    Indian Academy of Sciences (India)

    Home; Fellowship. Fellow Profile. Elected: 1982 Section: Medicine. David, Dr Joy Caesarina M.B.B.S., M.S. (Madras). Date of birth: 3 May 1927. Date of death: 20 April 2004. Specialization: Neuropharmacology Last known address: 292, 4th Main, 1st Block, Koramangala, Bengaluru 560 034. YouTube; Twitter; Facebook ...

  13. Chandy, Dr Jacob

    Indian Academy of Sciences (India)

    Elected: 1961 Section: Medicine. Chandy, Dr Jacob MBBS (Madras), FRCS (c) Council Service: 1962-70. Date of birth: 23 January 1910. Date of death: 23 June 2007. Specialization: Neurology, Neurosurgery and Medical Education Last known address: Paarra, Matteethra, Kottayam 686 004. YouTube; Twitter; Facebook ...

  14. Mishra, Dr Rakesh K

    Indian Academy of Sciences (India)

    Mishra, Dr Rakesh K Ph.D. (Allahabad), FNASc, FNA. Date of birth: 14 April 1961. Specialization: Genomics, Chromatin, Epigenetics Address: Director, Centre for Cellular & Molecular Biology, Uppal Road, Hyderabad 500 007, A.P.. Contact: Office: (040) 2719 2600. Residence: (040) 2720 6400. Mobile: 94419 02188

  15. Ranganathan, Dr Darshan

    Indian Academy of Sciences (India)

    Elected: 1991 Section: Chemistry. Ranganathan, Dr Darshan Ph.D. (Delhi), FNA. Date of birth: 4 June 1941. Date of death: 4 June 2001. Specialization: Organic Chemistry, Bio-Organic Chemistry and Supramolecular Chemistry Last known address: Scientist, Indian Institue of Chemical, Technology, Uppal Road, Hyderabad ...

  16. Panda, Dr Subrat Kumar

    Indian Academy of Sciences (India)

    Panda, Dr Subrat Kumar M.B.B.S. (Utkal), M.D. (Path.) (AIIMS), FNA. Date of birth: 18 November 1954. Specialization: Liver Pathology, Viral Hepatitis and Molecular Biology/Virology Address: Professor, Department of Pathology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110 029, U.T.. Contact:

  17. Gurjar, Dr Mukund Keshao

    Indian Academy of Sciences (India)

    Gurjar, Dr Mukund Keshao Ph.D. (Nagpur and London), FNASc. Date of birth: 28 August 1952. Specialization: Carbohydrate Chemistry and Synthetic Organic Chemistry Address: Director, R&D, Emcure Pharmaceuticals Limited, P2, ITBT Park Phase II, Hinjwadi, Pune 411 057, Maharashtra Contact: Office: (020) 3982 1350, ...

  18. Kulkarni, Dr Mohan Gopalkrishna

    Indian Academy of Sciences (India)

    Elected: 1996 Section: Engineering & Technology. Kulkarni, Dr Mohan Gopalkrishna Ph.D. (Mumbai), FNAE. Date of birth: 14 November 1950. Specialization: Polymer Science & Engineering, Intellectual Property Address: Emeritus Scientist, Unit for R&D of Information Products, Tapovan, NCL Campus, Pashan Road, Pune ...

  19. Sethunathan, Dr Nambrattil

    Indian Academy of Sciences (India)

    Fellow Profile. Elected: 1986 Section: Plant Sciences. Sethunathan, Dr Nambrattil Ph.D. (Madras), FNA, FNAAS, FNASc. Date of birth: 2 June 1937. Specialization: Environmental Microbiology Address: Flat No. 103, Ushodaya Apartments, Sri Venkateswara Officers' Colony, Ramakrishnapuram, Secunderabad 500 056, A.P.

  20. Parnaik, Dr Veena Krishnaji

    Indian Academy of Sciences (India)

    Elected: 2008 Section: Animal Sciences. Parnaik, Dr Veena Krishnaji Ph.D. (Ohio State), FNA. Date of birth: 22 August 1953. Specialization: Cell Biology, Molecular Biology, Lamins and Nuclear Organisation Address: INSA Senior Scientist, Centre for Cellular & Molecular Biology, Uppal Road, Hyderabad 500 007, A.P.

  1. Sengupta, Dr Sagar

    Indian Academy of Sciences (India)

    Fellow Profile. Elected: 2017 Section: General Biology. Sengupta, Dr Sagar Ph.D. (IISc), FNA, FNASc. Date of birth: 23 June 1968. Specialization: Cancer Biology, Cell Signalling, Mytochondrial Biology Address: National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110 067, U.T.. Contact: Office: (011) 2670 3786

  2. Basu, Dr Sandip Kumar

    Indian Academy of Sciences (India)

    Fellow Profile. Elected: 1992 Section: General Biology. Basu, Dr Sandip Kumar Ph.D. (Calcutta), FNASc, FNA, FTWAS Council Service: 1995-97. Date of birth: 1 January 1944. Specialization: Cell Biology, Molecular Biology and Microbial Genetics Address: FD-426, Sector 3, Bidhan Nagar, Kolkata 700 106, W.B.. Contact:

  3. Adhya, Dr Samit

    Indian Academy of Sciences (India)

    Elected: 1999 Section: General Biology. Adhya, Dr Samit Ph.D. (New York), FNA. Date of birth: 29 September 1953. Specialization: Mitochondrial Biology, Molecular Genetics of Parasites, Intracellular RNA Trafficking and DNA Diagnostics Address: CSIR Emeritus Scientist, Indian Inst. of Chemical Biology, 4, Raja S.C. ...

  4. Apte, Dr Shree Kumar

    Indian Academy of Sciences (India)

    Elected: 2008 Section: General Biology. Apte, Dr Shree Kumar Ph.D. (Gujarat), FNA, FNASc, FNAAS. Date of birth: 18 October 1952. Specialization: Molecular Biology & Biotechnology, Physiology and Stress Biology of Bacteria & Plants Address: Emeritus Professor, Homi Bhabha National Institute, Anushakti Nagar, ...

  5. Mukerji, Dr Mitali

    Indian Academy of Sciences (India)

    Elected: 2014 Section: Medicine. Mukerji, Dr Mitali Ph.D. (IISc). Date of birth: 13 November 1967. Specialization: Functional Genomics, Population Genomics, Ayurgenomics Address: Sr Principal Scientist, Genomics & Molecualr Medicine, Institute of Genomics & Integrative Biology, Sukhdev Vihar, Mathura Road, New Delhi ...

  6. Dengue Returns

    Centers for Disease Control (CDC) Podcasts

    2016-08-25

    Dr. Tyler Sharp, a CDC epidemiologist, discusses dengue in southern Texas.  Created: 8/25/2016 by National Center for Emerging and Zoonotic Infectious Diseases (NCEZID).   Date Released: 8/25/2016.

  7. 78 FR 43064 - Safety Zone; Maritime Heritage Festival Fireworks, St. Helens, OR

    Science.gov (United States)

    2013-07-19

    ...-AA00 Safety Zone; Maritime Heritage Festival Fireworks, St. Helens, OR AGENCY: Coast Guard, DHS. ACTION... associated with fireworks displays. As part of the Maritime Heritage Festival Fireworks in St. Helens, OR, the festival will feature a fireworks display. The Coast Guard expects approximately 1,000 people to...

  8. Friendly Letters on the Correspondence of Helen Keller, Anne Sullivan, and Alexander Graham Bell.

    Science.gov (United States)

    Blatt, Burton

    1985-01-01

    Excerpts from the letters between Alexander Graham Bell and Anne Sullivan and Helen Keller are given to illustrate the educational and personal growth of Helen Keller as well as the educational philosophy of Bell regarding the education of the deaf blind. (DB)

  9. Colonos y soldados en Oriente Helenístico

    Directory of Open Access Journals (Sweden)

    Adolfo Domínguez Monedero

    1994-01-01

    Full Text Available Este artículo estudia las formas que asume el asentamiento de soldados en el mundo helenístico. En primer lugar, se estudia la época de Alejandro Magno en cuanto que precedente; en efecto, Alejandro ha utilizado en gran medida a sus soldados para fundar nuevas colonias, que son un medio de proteger y defender sus conquistas. Este procedimiento ha sido igualmente empleado por sus sucesores, los reyes helenísticos. Aquí estudio ante todo los reinos Seiéucida y Tolemaico, haciendo especial hincapié en los diferentes métodos de los que cada uno de ellos se ha servido, y los distintos fines que debía alcanzar cada una de sus respectivas políticas de asentamiento. Del mismo modo, en cada uno de los tres casos abordados me detengo ante todo en las relaciones entre macedonios, griegos, indígenas y no griegos en general en las nuevas fundaciones. Como conclusión, se resalta el sentido general de todo el proceso en la conformación del mundo helenístico.This paper analyzes the ways in which the settlement of soldiers has been accomplished in the Hellenistic world. Firstly, I study the age of Alexander the Great as a precedent; Alexander has greatly used his soldiers in the foundation of new colonies as a way to protect and defend his conquests. This procedure has been also used by his successors, the Hellenistic kings. I study mainly the Seleucid and the Ptolemaic Kingdoms, stressing the different ways each of them has used, and the different purposes of their different settiement politics. In the three cases deait the relations between Macedonians, Greeks, Natives and non-greeks in general in the new foundations are underlined. As a conclusión the overall meaning of all the process in the shaping of the Hellenistic worid is emphasized.

  10. Gaia DR1 documentation

    Science.gov (United States)

    van Leeuwen, F.; de Bruijne, J. H. J.; Arenou, F.; Comoretto, G.; Eyer, L.; Farras Casas, M.; Hambly, N.; Hobbs, D.; Salgado, J.; Utrilla Molina, E.; Vogt, S.; van Leeuwen, M.; Abreu, A.; Altmann, M.; Andrei, A.; Babusiaux, C.; Bastian, U.; Biermann, M.; Blanco-Cuaresma, S.; Bombrun, A.; Borrachero, R.; Brown, A. G. A.; Busonero, D.; Busso, G.; Butkevich, A.; Cantat-Gaudin, T.; Carrasco, J. M.; Castañeda, J.; Charnas, J.; Cheek, N.; Clementini, G.; Crowley, C.; Cuypers, J.; Davidson, M.; De Angeli, F.; De Ridder, J.; Evans, D.; Fabricius, C.; Findeisen, K.; Fleitas, J. M.; Gracia, G.; Guerra, R.; Guy, L.; Helmi, A.; Hernandez, J.; Holl, B.; Hutton, A.; Klioner, S.; Lammers, U.; Lecoeur-Taïbi, I.; Lindegren, L.; Luri, X.; Marinoni, S.; Marrese, P.; Messineo, R.; Michalik, D.; Mignard, F.; Montegriffo, P.; Mora, A.; Mowlavi, N.; Nienartowicz, K.; Pancino, E.; Panem, C.; Portell, J.; Rimoldini, L.; Riva, A.; Robin, A.; Siddiqui, H.; Smart, R.; Sordo, R.; Soria, S.; Turon, C.; Vallenari, A.; Voss, H.

    2017-12-01

    We present the first Gaia data release, Gaia DR1, consisting of astrometry and photometry for over 1 billion sources brighter than magnitude 20.7 in the white-light photometric band G of Gaia. The Gaia Data Processing and Analysis Consortium (DPAC) processed the raw measurements collected with the Gaia instruments during the first 14 months of the mission, and turned these into an astrometric and photometric catalogue. Gaia DR1 consists of three parts: an astrometric data set which contains the positions, parallaxes, and mean proper motions for about 2 million of the brightest stars in common with the Hipparcos and Tycho-2 catalogues (the primary astrometric data set) and the positions for an additional 1.1 billion sources (the secondary astrometric data set). The primary set forms the realisation of the Tycho-Gaia Astrometric Solution (TGAS). The second part of Gaia DR1 is the photometric data set, which contains the mean G-band magnitudes for all sources. The third part consists of the G-band light curves and the characteristics of 3000 Cepheid and RR Lyrae stars observed at high cadence around the south ecliptic pole. The positions and proper motions in the astrometric data set are given in a reference frame that is aligned with the International Celestial Reference Frame (ICRF) to better than 0.1 mas at epoch J2015.0, and non-rotating with respect to the ICRF to within 0.03 mas yr^-1. For the primary astrometric data set, the typical standard error for the positions and parallaxes is about 0.3 mas, while for the proper motions the typical standard error is about 1 mas yr^-1. Whereas it has been suggested in Gaia Collaboration et al. (2016a) that a systematic component of ∼0.3 mas should be 'added' (in quadrature) to the parallax uncertainties, Brown (2017) clarifies that reported parallax standard errors already include local systematics as a result of the calibration of the TGAS parallax uncertainties by comparison to Hipparcos parallaxes. For the subset of

  11. Dr. von Braun With a Model of a Launch Vehicle

    Science.gov (United States)

    1950-01-01

    Dr. von Braun stands beside a model of the upper stage (Earth-returnable stage) of the three-stage launch vehicle built for the series of the motion picture productions of space flight produced by Walt Disney in the mid-1950's.

  12. Drømmefabrikken

    Directory of Open Access Journals (Sweden)

    Paulo Affonso Grisolli

    1994-09-01

    Full Text Available Som mangeårig producent af telenovelaer både i Brasilien og Portugal, kender Grisolli alle sider af telenovelaen: Novelaen som de fattiges drøm om rigdom og succes, novelaen som et redskab i TV-kanalernes kamp om seerne, som exportvare, som glansbillede under det brasillianske dik- tatur, som industriprodukt og som politisk igangsætter. I denne artikel be- skriver Grisolli sine erfaringer med gode og dårlige sider af telenovela- fascinationen i Latinamerika og præsenterer en ny genre, som er på vej frem i Brasilien, mini-serien. Artiklen er Grisollis foredrag på Folkekirkens Nødhjælps Konference om TV og Video i Latinamerika, november 1992.

  13. The influence of Dr. Hsiang-Tung Chang on neuroscience in Union of Soviet Socialist Republics.

    Science.gov (United States)

    Jiang, Chun

    2012-10-25

    As one of the founders of Chinese neuroscience, Dr. Hsiang-Tung Chang's return to China has a profound impact on neuroscience in China. As many people expected, this action also may have influenced the development of neuroscience in other Eastern countries. Therefore, Dr. Chang's move may have changed the history of neuroscience in a greater area than China.

  14. Patterns in Seismicity at Mt St Helens and Mt Unzen

    Science.gov (United States)

    Lamb, Oliver; De Angelis, Silvio; Lavallee, Yan

    2014-05-01

    Cyclic behaviour on a range of timescales is a well-documented feature of many dome-forming volcanoes. Previous work on Soufrière Hills volcano (Montserrat) and Volcán de Colima (Mexico) revealed broad-scale similarities in behaviour implying the potential to develop general physical models of sub-surface processes [1]. Using volcano-seismic data from Mt St Helens (USA) and Mt Unzen (Japan) this study explores parallels in long-term behaviour of seismicity at two dome-forming systems. Within the last twenty years both systems underwent extended dome-forming episodes accompanied by large Vulcanian explosions or dome collapses. This study uses a suite of quantitative and analytical techniques which can highlight differences or similarities in volcano seismic behaviour, and compare the behaviour to changes in activity during the eruptive episodes. Seismic events were automatically detected and characterized on a single short-period seismometer station located 1.5km from the 2004-2008 vent at Mt St Helens. A total of 714 826 individual events were identified from continuous recording of seismic data from 22 October 2004 to 28 February 2006 (average 60.2 events per hour) using a short-term/long-term average algorithm. An equivalent count will be produced from seismometer recordings over the later stages of the 1991-1995 eruption at MT Unzen. The event count time-series from Mt St Helens is then analysed using Multi-taper Method and the Short-Term Fourier Transform to explore temporal variations in activity. Preliminary analysis of seismicity from Mt St Helens suggests cyclic behaviour of subannual timescale, similar to that described at Volcán de Colima and Soufrière Hills volcano [1]. Frequency Index and waveform correlation tools will be implemented to analyse changes in the frequency content of the seismicity and to explore their relations to different phases of activity at the volcano. A single station approach is used to gain a fine-scale view of variations in

  15. Mt. St. Helens' aerosols: some tropospheric and stratospheric effects

    International Nuclear Information System (INIS)

    Michalsky, J.J.; Stokes, G.M.

    1983-01-01

    Aerosol optical depth measurements based on the attenuation of direct solar radiation before and after the six major explosive eruptions of Mt. St. Helens during 1980 are presented. These automated measurements are from a site 200 km mostly east and slightly north of the volcano. From the analysis it was concluded that in several cases the conversion of sulfur gases to sulfates proceeded much more rapidly (hours) than is usually found for tropospheric conditions. A possible explanation may be the greater availability of OH due to the presence of substantial water in the plume. The second major result of the analysis was that there was no evidence of a residual aerosol burden. Turbidity data taken between eruptions in 1980 were virtually identical in terms of magnitude and wavelength dependence to 1979 turbidity

  16. Resonancias Vocales y Memoria Sonora en Helen Brown

    Directory of Open Access Journals (Sweden)

    Andrés Grumann Sölter

    2016-09-01

    Full Text Available El artículo se concentra en indagar aspectos referidos a la intensificación de los usos de la voz y la sonorización musical que proponen Trinidad Piriz y Daniel Marabolí en Helen Brown (2013. Dando cuenta de un marco teórico que cuestiona la dimensión referencial con la que se analiza frecuentemente al teatro y proponiendo una aproximación fenomenológica que dé cuenta de la materialidad performativa que insta a intensificar las resonancias de la voz y la capacidad audible del sonido, el escrito analiza dos escenas o tracks en los que la memoria hecha cuerpo compromete de un modo particular a los espectadores que participan de la performance escénica.

  17. The isotopic and chemical evolution of Mount St. Helens

    Science.gov (United States)

    Halliday, A.N.; Fallick, A.E.; Dickin, A.P.; Mackenzie, A.B.; Stephens, W.E.; Hildreth, W.

    1983-01-01

    Isotopic and major and trace element analysis of nine samples of eruptive products spanning the history of the Mt. St. Helens volcano suggest three different episodes; (1) 40,000-2500 years ago: eruptions of dacite with ??{lunate}Nd = +5, ??{lunate}Sr = -10, variable ??18O, 206Pb/204Pb ??? 18.76, Ca/Sr ??? 60, Rb/Ba ??? 0.1, La/Yb ??? 18, (2) 2500-1000 years ago: eruptions of basalt, andesite and dacite with ??{lunate}Nd = +4 to +8, ??{lunate}Sr = -7 to -22, variable ??18O (thought to represent melting of differing mantle-crust reservoirs), 206Pb/204Pb = 18.81-18.87, variable Ca/Sr, Rb/Ba, La/Yb and high Zr, (3) 1000 years ago to present day: eruptions of andesite and dacite with ??{lunate}Nd = +6, ??{lunate}Sr = -13, ??18O ???6???, variable 206Pb/204Pb, Ca/Sr ??? 77, Rb/Ba = 0.1, La/Yb ??? 11. None of the products exhibit Eu anomalies and all are LREE enriched. There is a strong correlation between 87Sr/86Sr and differentiation indices. These data are interpreted in terms of a mantle heat source melting young crust bearing zircon and garnet, but not feldspar, followed by intrusion of this crustal reservoir by mantle-derived magma which caused further crustal melting and contaminated the crustal magma system with mafic components. Since 1000 years ago all the eruptions have been from the same reservoir which has displayed a much more gradual re-equilibration of Pb isotopic compositions than other components suggesting that Pb is being transported via a fluid phase. The Nd and Sr isotopic compositions lie along the mantle array and suggest that the mantle underneath Mt. St. Helens is not as depleted as MORB sources. There is no indication of seawater involvement in the source region. ?? 1983.

  18. From Mxit to Dr Math

    CSIR Research Space (South Africa)

    Botha, Adèle

    2013-02-01

    Full Text Available In 2007, Laurie Butgereit, a researcher at the CSIR Meraka Institute, started to use Mxit as a communication channel to tutor her son in mathematics. Her son and a number of his friends logged in, and Dr Math was born. At the inception of Dr Math...

  19. The 2004–2008 dome-building eruption at Mount St. Helens, Washington: Epilogue

    Science.gov (United States)

    Dzurisin, Daniel; Moran, Seth C.; Lisowski, Michael; Schilling, Steve P.; Anderson, Kyle R.; Werner, Cynthia A.

    2015-01-01

    The 2004–2008 dome-building eruption at Mount St. Helens ended during winter 2007–2008 at a time when field observations were hampered by persistent bad weather. As a result, recognizing the end of the eruption was challenging—but important for scientists trying to understand how and why long-lived eruptions end and for public officials and land managers responsible for hazards mitigation and access restrictions. In hindsight, the end of the eruption was presaged by a slight increase in seismicity in December 2007 that culminated on January 12–13, 2008, with a burst of more than 500 events, most of which occurred in association with several tremor-like signals and a spasmodic burst of long-period earthquakes. At about the same time, a series of regular, localized, small-amplitude tilt events—thousands of which had been recorded during earlier phases of the eruption—came to an end. Thereafter, seismicity declined to 10–20 events per day until January 27–28, when a spasmodic burst of about 50 volcano-tectonic earthquakes occurred over a span of 3 h. This was followed by a brief return of repetitive “drumbeat” earthquakes that characterized much of the eruption. By January 31, however, seismicity had declined to 1–2 earthquakes per day, a rate similar to pre-eruption levels. We attribute the tilt and seismic observations to convulsive stagnation of a semisolid magma plug in the upper part of the conduit. The upward movement of the plug ceased when the excess driving pressure, which had gradually decreased throughout the eruption as a result of reservoir deflation and increasing overburden from the growing dome, was overcome by increasing friction as a result of cooling and crystallization of the plug.

  20. The isotopic and chemical evolution of Mount St. Helens

    International Nuclear Information System (INIS)

    Halliday, A.N.; Fallick, A.E.; Dickin, A.P.; Mackenzie, A.B.; Stephens, W.E.

    1983-01-01

    Isotopic and major and trace element analysis of nine samples of eruptive products spanning the history of the Mt. St. Helens volcano suggest three different episodes; (1) 40,000-2500 years ago: eruptions of dacite with epsilonsub(Nd) = +5, epsilonsub(Sr) = -10, variable delta 18 O, 206 Pb/ 204 Pb approx.= 18.76, Ca/Sr approx.= 60, Rb/Ba- approx.= 0.1, La/Yb approx.= 18, (2) 2500-1000 years ago: eruptions of basalt, andesite and dacite with epsilonsub(Nd) = +4 to + 8, epsilonsub(Sr) = -7 to -22, variable delta 18 O (thought to represent melting of differing mantle-crust reservoirs), 206 Pb/ 204 Pb = 18.81-18.87, variable Ca/Sr, Rb/Ba, La/Yb and high Zr, (3) 1000 years ago to present day: eruptions of andesite and dacite with epsilonsub(Nd) = + 6, epsilonsub(Sr) = -13, delta 18 O approx.= 6per mille, variable 206 Pb/ 204 Pb, Ca/Sr approx.= 77, Rb/Ba = 0.1, La/Yb approx.= 11. None of the products exhibit Eu anomalies and all are LREE enriched. There is a strong correlation between 87 Sr/ 86 Sr and differentiation indices. These data are interpreted in terms of a mantle heat source melting young crust bearing zircon and garnet, but not feldspar, followed by intrusion of this crustal reservoir by mantle-derived magma which caused further crustal melting and contaminated the crustal magma system with mafic components. Since 1000 years ago all the eruptions have been from the same reservoir which has displayed a much more gradual re-equilibration of Pb isotopic compositions than other components suggesting that Pb is being transported via a fluid phase. The Nd and Sr isotopic compositions lie along the mantle array and suggest that the mantle underneath Mt. St. Helens is not as depleted as MORB sources. There is no indication of seawater involvement in the source region. (orig.)

  1. How Dr. Pierce Promoted Himself

    Data.gov (United States)

    Department of the Interior — This article is about Dr. Raymond V Pierce who owned St. Vincent Island before it became a refuge. The doctor painted advertisements for his famous “Woman’s Tonic”...

  2. Dr Stanislaw Huskowski, Mayor of Wroclaw, Poland

    CERN Multimedia

    Patrice Loïez

    2002-01-01

    Dr Stanislaw Huskowski, Mayor of Wroclaw, Poland visiting the ATLAS magnet assembly hall, building 180. From l to r: Mr Carlo Lamprecht, State Councillor, Dr Stanislaw Huskowski and Dr Peter Jenni, ATLAS Spokesperson

  3. Dr Stanislaw Huskowski, Mayor of Wroclaw, Poland

    CERN Multimedia

    Patrice Loïez

    2002-01-01

    Dr Stanislaw Huskowski, Mayor of Wroclaw, Poland visiting the ATLAS magnet assembly hall, building 180 with Mr Carlo Lamprecht, State Councillor, Dr Stanislaw Huskowski and Dr Peter Jenni, ATLAS Spokesperson

  4. Measurements of SO2 in the Mount St. Helens debris

    International Nuclear Information System (INIS)

    Kerr, J.B.; Evans, F.J.; Mateer, C.L.

    1982-01-01

    Routine measurements of ozone and SO 2 are made with the Dobson and Brewer spectrophotometers at the Atmospheric Environment Service in Downsview Ontario. On May 20 and 21, 1980, large values of column SO 2 were observed with both spectrophotometers at the time of passage of the Mount St. Helens debris. Enhanced SO 2 values were first observed at 1800Z on May 20. The maximum column amount of SO 2 measured was 0.06 cm at 2200 Z. On May 21, SO 2 values slowly decreased from 0.03 cm at 1100 Z cm to 0.01 cm at 2000Z. Typical SO 2 amounts due to pollution at the Downsview site are approximately 0.003 to 0.005 cm. At the same time of maximum SO 2 enhancement, both Dobson and Brewer spectrophotometers measured a 0.040 cm decrease of total ozone. It is not clear whether the decrease of total ozone was caused by the volcanic cloud or natural ozone variability. Air mass trajectories indicate that the altitude of the debris cloud, which passed over Downsview at the time, was between 10 km and 12 km

  5. Geologic Map of the Helen Planitia Quadrangle (V-52), Venus

    Science.gov (United States)

    Lopez, Ivan; Hansen, Vicki L.

    2008-01-01

    The Magellan spacecraft orbited Venus from August 10, 1990, until it plunged into the Venusian atmosphere on October 12, 1994. Magellan Mission objectives included (1) improving the knowledge of the geological processes, surface properties, and geologic history of Venus by analysis of surface radar characteristics, topography, and morphology and (2) improving the knowledge of the geophysics of Venus by analysis of Venusian gravity. The Helen Planitia quadrangle (V-52), located in the southern hemisphere of Venus between lat 25 deg S. and 50 deg S. and between long 240 deg E. and 270 deg E., covers approximately 8,000,000 km2. Regionally, the map area is located at the southern limit of an area of enhanced tectonomagmatic activity and extensional deformation, marked by a triangle that has highland apexes at Beta, Atla, and Themis Regiones (BAT anomaly) and is connected by the large extensional belts of Devana, Hecate, and Parga Chasmata. The BAT anomaly covers approximately 20 percent of the Venusian surface.

  6. Physical and chemical characteristics of Mt. St. Helens airborne debris

    International Nuclear Information System (INIS)

    Sedlacek, W.A.; Heiken, G.H.; Mroz, E.J.; Gladney, E.S.; Perrin, D.R.; Leifer, R.; Fisenne, I.; Hinchliffe, L.; Chuan, R.L.

    1980-01-01

    Tephra and aerosols from the May 18, 1980 eruption of Mt. St. Helens, Washington were sampled in the lower stratosphere with a WB-57F aircraft. The main body of the plume was intercepted over western Kansas on May 20, 48 hours after the eruption, at an altitude of 15.2 km. Concentrations on filter samples were 26 ng of SO 4 /g of air and 579 ng of ash/g of air. Angular glass pyroclasts ranged in size from 0.5 to 10 μm, with a mean grain size of 2 μm. Samples collected at altitudes of 16.7 and 12.5 km had only traces of SO 4 and ash. A second flight was flown, 72 hours after the eruption, on May 21. From north Texas to central Wyoming, at an altitude of 15.2 km, 4 /g of air were sampled. At an altitude of 18.3 km, from central Wyoming to NW New Mexico, the plume density and character were variable. Glassy pyroclasts similar to those sampled on the first flight range in size from 0.5 to 4 μm dia. Trace element analysis revealed some volatile element enrichment, but far less than previously observed in the plume from St. Augustine Volcano, 1976. Values of 210 Po/ 210 Pb were 0.7 to 1.32 comparable to the secular equilibrium value of 1.0 and far less than ratios previously reported by Lambert

  7. Gold Returns

    OpenAIRE

    Robert J. Barro; Sanjay P. Misra

    2013-01-01

    From 1836 to 2011, the average real rate of price change for gold in the United States is 1.1% per year and the standard deviation is 13.1%, implying a one-standard-deviation confidence band for the mean of (0.1%, 2.1%). The covariances of gold's real rate of price change with consumption and GDP growth rates are small and statistically insignificantly different from zero. These negligible covariances suggest that gold's expected real rate of return--which includes an unobserved dividend yiel...

  8. Returning home

    DEFF Research Database (Denmark)

    Agergaard, Jytte; Brøgger, Ditte

    2016-01-01

    flows. By focusing on these educational migrants, this paper explores how they connect to their rural homes. Guided by a critical reading of the migration-development scholarship, the paper examines how migrants and their relatives make sense of educational migrants’ remitting and returning practices......, and by comparing three groups of educational migrants, the migrants’ reasons for staying connected and sending remittances are scrutinized. The paper finds that although educational migrants do not generate extensive economic remittances for local development in Nepal, they stay connected to their rural homes...

  9. Dr Luigi Orlando, Dr Sergio Ceccuzzi, Dr. Armando Sbrana, Europa Metalli, Italy, Dr Albert Scherger, Member of KM Europa Metal AG, Osnabr ck, Germany, Prof. Filippo Menzinger, Scientific Attaché, Permanent Mission of Italy in Geneva

    CERN Multimedia

    Patrice Loïez

    2001-01-01

    Photo 01: Dr Lyn Evans and Dr Luigi Orlando Photo 04: L. to r.: Dr Lyn Evans, Dr Luigi Orlando, Prof. Luciano Maiani and Prof. Filippo Menzinger Photo 06: L. to r.: Prof. Philippo Menzinger, Dr Armando Sbrana, Prof. Luciano Maiani, Dr Albert Scherger, Dr Lyn Evans, Dr Luigi Orlando, Dr Sergio Ceccuzzi, visiting the LHC superconducting magnet test hall, SM18

  10. The "Unsavory Researches" of Helen Campbell: A 19th-Century Journalist's Investigation of Urban Women's Poverty.

    Science.gov (United States)

    Henry, Susan

    In 1886, the New York "Tribune" ran a series of articles by Helen Campbell, "The Prisoners of Poverty," which investigated the sufferings of working women in New York's slums. Initially a fiction and housekeeping writer, Helen Campbell's home economics orientation first pointed her toward the problems of the poor. In the late…

  11. Tribute to Dr Jacques Rogge

    DEFF Research Database (Denmark)

    Bourgois, Jan G; Dumortier, Jasmien; Callewaert, Margot

    2017-01-01

    'A tribute to Dr J. Rogge' aims to systematically review muscle activity and muscle fatigue during sustained submaximal quasi-isometric knee extension exercise (hiking) related to Olympic dinghy sailing as a tribute to Dr Rogge's merits in the world of sports. Dr Jacques Rogge is not only...... of invasive needle electromyography (EMG) during a specific sailing technique (hiking) on a self-constructed sailing ergometer. Hiking is a bilateral and multi-joint submaximal quasi-isometric movement which dinghy sailors use to optimize boat speed and to prevent the boat from capsizing. Large stresses...... are generated in the anterior muscles that cross the knee and hip joint, mainly employing the quadriceps at an intensity of 30-40% maximal voluntary contraction (MVC), sometimes exceeding 100% MVC. Better sailing level is partially determined by a lower rate of neuromuscular fatigue during hiking and for ≈60...

  12. Racism, Disable-ism, and Heterosexism in the Making of Helen Keller

    OpenAIRE

    Prettol, Andy

    2008-01-01

    In his paper "Racism, Disable-ism, and Heterosexism in the Making of Helen Keller" Andy Prettol offers an analysis of prevailing narratives about Helen Keller. Prettol focuses on the dynamic interplay of race, (dis)ability, sexuality, and gender inherent to all Keller stories of triumph that are so popular in elementary schools across the U.S. He examines three specific works: William Gibson's playscript The Miracle Worker, written in 1956; the film of the same title directed by Arthur Penn i...

  13. Pseudotachylyte formation in volcanic conduits: Montserrat vs. Mount St. Helens

    Science.gov (United States)

    Kendrick, J. E.; Lavallee, Y.; Petrakova, L.; Ferk, A.; Di Toro, G.; Hess, K.; Ferri, F.; Dingwell, D. B.

    2012-12-01

    Seismogenic fracture and faulting may result in non-equilibrium frictional melting of rock, which upon cooling and recrystallisation forms pseudotachylyte. In volcanic environments, the transition from endogenous to exogenous growth can be attributed to a shift in magma rheology into the brittle regime, and thus the ascent of high-viscosity magma can form discrete shear zones, comparable to tectonic faults, along conduit margins. Pseudotachylytes have, until now, rarely been noted in exogenous volcanic materials and seldom in active volcanic environments. This is despite the simultaneous occurrence of high pressures and differential stresses, which make high-viscosity magmas ideal candidates for the occurrence of frictional melting. Here, we compare the chemical, thermal, magnetic and structural properties of two candidate volcanic pseudotachylytes; one from Soufriere Hills (Montserrat) and one from Mount St. Helens (USA). Additionally, we present data from a set of high-velocity rotary shear experiments on the host materials of these natural pseudotachylytes in which melting was induced after just 10's of centimeters of slip at realistic extrusion velocities (0.4 - 1.6 ms-1) and low normal stresses (0.5-2 MPa). After 1-2 meters of slip a continuous melt layer formed, at which point friction decreased and the fault zone displayed slip-weakening behaviour. For volcanic conduits, this would facilitate temporarily elevated slip rates, or an increase in extrusion rate, and could cause transitions in dome morphology and eruption style. This study demonstrates that shear fracturing in magma or sliding along conduit margins can readily result in frictional melting. The conspicuous absence of pseudotachylytes in active volcanic environments is likely the result of exceptionally high background temperatures which precipitate near-equilibrium melting, thereby obviating one of the characteristic signatures of pseudotachylyte - glassy protomelts formed by selective melting of

  14. Counting, accounting, and accountability: Helen Verran's relational empiricism.

    Science.gov (United States)

    Kenney, Martha

    2015-10-01

    Helen Verran uses the term 'relational empiricism' to describe situated empirical inquiry that is attentive to the relations that constitute its objects of study, including the investigator's own practices. Relational empiricism draws on and reconfigures Science and Technology Studies' traditional concerns with reflexivity and relationality, casting empirical inquiry as an important and non-innocent world-making practice. Through a reading of Verran's postcolonial projects in Nigeria and Australia, this article develops a concept of empirical and political 'accountability' to complement her relational empiricism. In Science and an African Logic, Verran provides accounts of the relations that materialize her empirical objects. These accounts work to decompose her original objects, generating new objects that are more promising for the specific postcolonial contexts of her work. The process of decomposition is part of remaining accountable for her research methods and accountable to the worlds she is working in and writing about. This is a practice of narrating relations and learning to tell better technoscientific stories. What counts as better, however, is not given, but is always contextual and at stake. In this way, Verran acts not as participant-observer, but as participant-storyteller, telling stories to facilitate epistemic flourishing within and as part of a historically located community of practice. The understanding of accountability that emerges from this discussion is designed as a contribution, both practical and evocative, to the theoretical toolkit of Science and Technology Studies scholars who are interested in thinking concretely about how we can be more accountable to the worlds we study.

  15. Ali, Dr Moizuddin Abdul Salim

    Indian Academy of Sciences (India)

    ... Section: Animal Sciences. Ali, Dr Moizuddin Abdul Salim D.Sc. (Andhra), D.Sc. (h.c.), FNA. Date of birth: 12 November 1896. Date of death: 20 June 1987. Specialization: Ecology, Zoogeography, Nature Conservation, Ornithology Last known address: No. 46, Pali Hill, Bombay 400 050. YouTube; Twitter; Facebook; Blog ...

  16. DR. MIKA MAJALE MEMORIAL LECTURE

    African Journals Online (AJOL)

    He had four children Irene Majale,. Prof. Mike Majale (Architect) Victoria Majale Ojiambo and Chris Majale. Dr. Majale died on 21st April 1978. As an orthopaedic Surgeon he worked at Kenyatta. National Hospital (KNH), Kabete Orthopaedic Unit and. Armed Forces Memorial Hospital. He did not do any private practice.

  17. Murty, Dr Thutupalli Gopala Krishna

    Indian Academy of Sciences (India)

    Elected: 2002 Section: Engineering & Technology. Murty, Dr Thutupalli Gopala Krishna Ph.D. (Adelaide). Date of birth: 11 February 1944. Specialization: Optical Engineering, Thin Film Technology, Electro-Optical Instrumentation and Atmospheric Science Technologies Address: 848, 8th B Main, 17th Cross, ISRO Layout, ...

  18. Dr. John Marburger visits DESY

    CERN Multimedia

    2003-01-01

    Dr. John Marburger, Director of the United States Office of Science and Technology Policy, visited the research center DESY in Hamburg. The American physicist wanted to inform himself about the status of the TESLA X-ray laser and the TESLA linear collider as well as the international collaboration at DESY (1/2 page).

  19. Fermilab's Helen Edwards receives prestigious 2003 Robert R. Wilson prize from the American Physical Society

    CERN Multimedia

    2002-01-01

    Helen Edwards has been awarded the 2003 Robert R. Wilson prize. She was cited for "her pivotal achievement and critical contribution as the leader in the design, construction, commissioning and operation of the Tevatron, and for her continued contributions to the development of high gradient superconducting linear accelerators as well as bright and intense electron sources." (1/2 page).

  20. Effects on the Mount St. Helens volcanic cloud on turbidity at Ann Arbor, Michigan

    International Nuclear Information System (INIS)

    Ryznar, E.; Weber, M.R.; Hallaron, T.S.

    1981-01-01

    Measurements of turbidity were made at the University of Michigan irradiance and metorlogical measurement facility just prior to, during and after the passage of the volcanic cloud from the 18 May 1980 eruption of Mount St. Helens. They were made with a Volz sunphotometer at wavelengths of 500 and 880 nm

  1. Tupikteid ei ole / Aimi Püüa, Kristina Orion, Helen Põllo, Kaie Piiskop

    Index Scriptorium Estoniae

    2015-01-01

    Innove õppekava ja metoodika keskuse juhataja Kaie Piiskop, testide ja uuringute keskuse juht Aimi Püüa, karjääriteenuste üksuse juht Kristina Orion, haridus- ja teadusministeeriumi kutsehariduse osakonna juhataja Helen Põllo arutlesid teemal kuidas jätkata haridusteed

  2. Water sampling at the Berge Helene FPSO at Chinguetti field in Mauritania using passive samplers

    NARCIS (Netherlands)

    Korytar, P.; Galien, van der W.

    2007-01-01

    Three rounds of water sampling were performed at the Berge Helene FPSO at the Chinguetti field in Mauritania using passive samplers attached to the FPSO to determine the levels of contamination that could potentially accumulate in organisms. Two rounds were carried out prior to the commencement of

  3. Posteruption arthropod succession on the Mount St. Helens volcano: the ground-dwelling beetle fauna (Coleoptera).

    Science.gov (United States)

    R.R. Parmenter; C.M. Crisafulli; N. Korbe; G. Parsons; M. Edgar; J.A. MacMahon

    2005-01-01

    The 1980 eruptions of Mount St. Helens created a complex mosaic of disturbance types over a 600 km2 area. From 1980 through 2000 we monitored beetle species relative abundance and faunal composition of assemblages at undisturbed reference sites and in areas subjected to tephra-fall, blowdown, and pyroclastic flow volcanic disturbance. We...

  4. Helen Mirren võitis Elizabeth II rolliga brittide Oscari / Triin Tael

    Index Scriptorium Estoniae

    Tael, Triin

    2007-01-01

    Stephen Frearsi mängufilmis "Kuninganna" ("The Queen") kuninganna Elizabeth II kehastav Helen Mirren sai oma rolli eest parima naisnäitleja Bafta (Briti filmiakadeemia auhind). Linateos pälvis ka aasta parima filmi tiitli. Ka teistest võitjatest

  5. Rhetoric, Possibility, and Women's Status in Ancient Athens: Gorgias' and Isocrates' Encomiums of Helen.

    Science.gov (United States)

    Biesecker, Susan L.

    1992-01-01

    Critiques teleological narrative structures implicit in the work of some classical historians, adopting instead a multilayered historiographical method. Argues that a law instituted in 451/450 B.C.E. by Pericles opened up a possibility for resisting women's exclusion from the public sphere. Reads Gorgias' and Isocrates' speeches on Helen of Troy…

  6. Lateral blasts at Mount St. Helens and hazard zonation

    Science.gov (United States)

    Crandell, D.R.; Hoblitt, R.P.

    1986-01-01

    Lateral blasts at andesitic and dacitic volcanoes can produce a variety of direct hazards, including ballistic projectiles which can be thrown to distances of at least 10 km and pyroclastic density flows which can travel at high speed to distances of more than 30 km. Indirect effect that may accompany such explosions include wind-borne ash, pyroclastic flows formed by the remobilization of rock debris thrown onto sloping ground, and lahars. Two lateral blasts occurred at a lava dome on the north flank of Mount St. Helens about 1200 years ago; the more energetic of these threw rock debris northeastward across a sector of about 30?? to a distance of at least 10 km. The ballistic debris fell onto an area estimated to be 50 km2, and wind-transported ash and lapilli derived from the lateral-blast cloud fell on an additional lobate area of at least 200 km2. In contrast, the vastly larger lateral blast of May 18, 1980, created a devastating pyroclastic density flow that covered a sector of as much as 180??, reached a maximum distance of 28 km, and within a few minutes directly affected an area of about 550 km2. The May 18 lateral blast resulted from the sudden, landslide-induced depressurization of a dacite cryptodome and the hydrothermal system that surrounded it within the volcano. We propose that lateral-blast hazard assessments for lava domes include an adjoining hazard zone with a radius of at least 10 km. Although a lateral blast can occur on any side of a dome, the sector directly affected by any one blast probably will be less than 180??. Nevertheless, a circular hazard zone centered on the dome is suggested because of the difficulty of predicting the direction of a lateral blast. For the purpose of long-term land-use planning, a hazard assessment for lateral blasts caused by explosions of magma bodies or pressurized hydrothermal systems within a symmetrical volcano could designate a circular potential hazard area with a radius of 35 km centered on the volcano

  7. Clast comminution during pyroclastic density current transport: Mt St Helens

    Science.gov (United States)

    Dawson, B.; Brand, B. D.; Dufek, J.

    2011-12-01

    Volcanic clasts within pyroclastic density currents (PDCs) tend to be more rounded than those in fall deposits. This rounding reflects degrees of comminution during transport, which produces an increase in fine-grained ash with distance from source (Manga, M., Patel, A., Dufek., J. 2011. Bull Volcanol 73: 321-333). The amount of ash produced due to comminution can potentially affect runout distance, deposit sorting, the volume of ash lofted into the upper atmosphere, and increase internal pore pressure (e.g., Wohletz, K., Sheridan, M. F., Brown, W.K. 1989. J Geophy Res, 94, 15703-15721). For example, increased pore pressure has been shown to produce longer runout distances than non-comminuted PDC flows (e.g., Dufek, J., and M. Manga, 2008. J. Geophy Res, 113). We build on the work of Manga et al., (2011) by completing a pumice abrasion study for two well-exposed flow units from the May 18th, 1980 eruption of Mt St Helens (MSH). To quantify differences in comminution from source, sampling and the image analysis technique developed in Manga et al., 2010 was completed at distances proximal, medial, and distal from source. Within the units observed, data was taken from the base, middle, and pumice lobes within the outcrops. Our study is unique in that in addition to quantifying the degree of pumice rounding with distance from source, we also determine the possible range of ash sizes produced during comminution by analyzing bubble wall thickness of the pumice through petrographic and SEM analysis. The proportion of this ash size is then measured relative to the grain size of larger ash with distance from source. This allows us to correlate ash production with degree of rounding with distance from source, and determine the fraction of the fine ash produced due to comminution versus vent-fragmentation mechanisms. In addition we test the error in 2D analysis by completing a 3D image analysis of selected pumice samples using a Camsizer. We find that the roundness of PDC

  8. [Dr Guillermo Contreras Da Silva, a relevant figure in the development of Chilean microbiology].

    Science.gov (United States)

    Cabello, Felipe C

    2008-02-01

    The influence of the work of Dr. Guillermo Contreras Da Silva and his colaborators on the evolution of microbiology in Chile is briefly analyzed. Dr. Contreras was trained in modern virology at Yale University with Dr. J. Melnick under the sponsorhip of the Rockefeller Foundation. During this training, he used serological methods to classify Cocksakie viruses. After his return to Chile, he studied the epidemiology of enteroviruses, including poliovirus. His laboratory, the country's first in modern virology, took an active role in Chile's first Sabin polio vaccination in 1961. Dr. Contreras and his group transformed the teaching and the character of microbiology in Chile from a descriptive medically oriented discipline into an autonomous, quantitative and experimental science. They modernized microbiology with the introduction of molecular biology and microbial genetics and fostered collaborations with allied biological sciences. Dr. Contreras was a Guggenheim Fellow, and until his retirement, was the Chief of the Viral Products Division, Bureau of Biologies, Ottawa, Canada.

  9. Sproglige drømmerier

    DEFF Research Database (Denmark)

    Farø, Ken Joensen

    2015-01-01

    blev tidligere brugt i Danmarks Radio som pausesignal, afspillet på en spilledåse. Ak ja, det var dengang. Gå ind på nettet og lyt til den, hvis du ikke kender melodien. Det er national kulturarv. Mange bevingede ord indeholder en form af ”drøm(me)”, fx Martin Luther Kings ”I have a Dream”. Eller...

  10. Balti aadlipreili kunstiharrastusest : Helene Marie Zoege von Manteuffel (1773/74-1842) = Artistic pursuits of an aristocratic Baltic lady : Helene Marie Zoege von Manteuffel (1773/74-1842) / Kadi Polli

    Index Scriptorium Estoniae

    Polli, Kadi, 1973-

    2014-01-01

    Aadlitüdrukute haridusest ja kunstiharidusest Balti valgustusaja kunsti(haridus)maastikul. Perekond Zoege von Manteuffeli kunstilembusest ja Ojasoo mõisa tähtsusest baltisaksa kunstiajaloos. Helene Mariest Franz Gerhard Kügelgeni õpilasena ja abikaasana

  11. In Memoriam: Dr. Frank John Fenner

    Centers for Disease Control (CDC) Podcasts

    This podcast reflects on one of the greatest pioneers in virology, Dr. Frank John Fenner. Dr. Frederick Murphy, a member of EID's editorial board and the Institute of Medicine, and professor of Pathology at the University of Texas Medical Branch in Galveston, shares professional and personal stories of Dr. Frank Fenner.

  12. A Gentle Frost: Poet Helen Frost Talks about the Healing Power of Poetry and Her Latest Novel

    Science.gov (United States)

    Margolis, Rick

    2006-01-01

    This article presents an interview with poet Helen Frost. Frost talked about how poetry can help at-risk children. She also related the challenges she faced when she wrote her latest book titled "The Braid."

  13. Interview with Dr Anna Matamala

    Directory of Open Access Journals (Sweden)

    Lucinea Marcelino Villela

    2016-09-01

    In this interview, which took place in June 2016, Dr Anna Matamala described some details about her long professional experience in Audiovisual Translation, especially in dubbing from English into Catalan, and we talked about many other things like her interest in lexicography, her point of view on some contemporary topics in Audiovisual Translation Studies: the use of technology, the relation between AVT and Accessibility Studies, AVT and Filmmaking fields, the importance of keeping in touch with other countries and even continents outside Europe, and she also gave some advice to the new generation of Translation students.

  14. Interview with Dr Anna Matamala

    Directory of Open Access Journals (Sweden)

    Lucinea Marcelino Villela

    2016-12-01

    Full Text Available In this interview, which took place in June 2016, Dr Anna Matamala described some details about her long professional experience in Audiovisual Translation, especially in dubbing from English into Catalan, and we talked about many other things like her interest in lexicography, her point of view on some contemporary topics in Audiovisual Translation Studies: the use of technology, the relation between AVT and Accessibility Studies, AVT and Filmmaking fields, the importance of keeping in touch with other countries and even continents outside Europe, and she also gave some advice to the new generation of Translation students.

  15. Mount St. Helens Ecosystem Restoration General Reevaluation Study Reconnaissance Report

    Science.gov (United States)

    2007-07-01

    reproduction observed in impacted streams was attributed to temporary groundwater upwelling. Adult salmon and steelhead that returned to the Toutle River...to 33.5% in 1982. Survival of eggs to hatching stage in volcanic substrate ranged from 50% to 95%. Successful reproduction observed in...areas with native conifers . Look for opportunities to enhance or restore off-channel rearing habitat. 84 A number of habitat constraints still

  16. Mount St. Helens: Controlled-source audio-frequency magnetotelluric (CSAMT) data and inversions

    Science.gov (United States)

    Wynn, Jeff; Pierce, Herbert A.

    2015-01-01

    This report describes a series of geoelectrical soundings carried out on and near Mount St. Helens volcano, Washington, in 2010–2011. These soundings used a controlled-source audio-frequency magnetotelluric (CSAMT) approach (Zonge and Hughes, 1991; Simpson and Bahr, 2005). We chose CSAMT for logistical reasons: It can be deployed by helicopter, has an effective depth of penetration of as much as 1 kilometer, and requires less wire than a Schlumberger sounding.

  17. Tähistame Helen Kelleri 130. sünniaastapäeva

    Index Scriptorium Estoniae

    Keskküla, Raissa

    2010-01-01

    Helen Kellerist ja tema sünniaastapäeva tähistamisest, samuti Eesti Pimekurtide Tugiliidu ettevõtmistest: koostöölepingust Eesti Kujurite Ühendusega, punktkirjas väljaantud raamatust "Õppimise ime", Hilton/Perkins programmi kaasabil Eesti pimekurtide ja nägemis-liitpuudega lastega töötavate õpetajate ning töötajate koolitamiset

  18. The Myth of the Male Breadwinner: Women and Industrialization in the Caribbean by Helen I. Safa

    OpenAIRE

    Maurer, WM

    1996-01-01

    What are the implications of women's entry into the industrial workforce for their empowerment at the level of the household, workplace, and political arena? Helen Safa's book compares the experiences of women in Puerto Rico, the Dominican Republic, and Cuba to provide an insightful commentary on the gendered dimensions of the international division of labor. She documents changes in women's status as Puerto Rico and the Dominican Republic moved from import-substitution to e...

  19. Helen Howitt: una semilla canadiense en la enfermería latinoamericana Helen Howitt: uma semente canadense na enfermagem latino-americana Helen Howitt: A Canadian seed in Latin American nursing

    Directory of Open Access Journals (Sweden)

    ANA LUISA VELANDIA MORA

    2009-07-01

    Full Text Available Este trabajo se propone hacer visible la presencia de Helen Howitt en la enfermería latinoamericana. Paralelamente pretende hacer un análisis de la influencia política del Servicio Cooperativo Interamericano de Salud Pública en la enfermería de la región y la presencia de organizaciones religiosas, especialmente norteamericanas, en varios países latinoamericanos. Helen Howitt, enfermera canadiense egresada de la Universidad de Alberta, fue enviada en 1942 por la Organización Panamericana de la Salud, OPS para que asesorara en Colombia al Ministerio de Trabajo, Higiene y Previsión Social. Pasó a formar parte del proyecto de apertura y organización de la Escuela Nacional Superior de Enfermeras, y fue su primera directora. Helen Howitt fue directora de la Escuela de Enfermería del Hospital Santo Tomás de la Zona del Canal de Panamá entre 1933 y 1938, luego fundadora y primera directora de la Escuela Nacional Superior de Enfermeras de Colombia entre los años 1943 y 1951; posteriormente de la Escuela Nacional de Enfermeras de Bolivia entre 1953 y 1959, cuando fue invitada a cumplir un cargo similar en Venezuela. A todos estos países llegó primero como consultora del respectivo Ministerio de Salud, a través de convenios con el Servicio Cooperativo Interamericano de Salud Pública. La Fundación Rockefeller daba becas para todos los países latinos. En la Escuela del Hospital Santo Tomás de Panamá había estudiantes de toda la América Central, Venezuela, Colombia, hasta del Ecuador y la Argentina. La Rockefeller quería unificar la enfermería en toda Latinoamérica. Llegó primero a Venezuela; y las enfermeras que se graduaron en Panamá fueron las líderes en América Latina, donde trataron de fundar escuelas.O presente trabalho pretende visibilizar a presença de Hellen Howitt na enfermagem latino-americana. Paralelamente, procura fazer uma análise sobre a influência política do Serviço Cooperativo Interamericano de Sa

  20. Helen Howitt: una semilla canadiense en la enfermería latinoamericana Helen Howitt: A Canadian seed in Latin American nursing Helen Howitt: uma semente canadense na enfermagem latino-americana

    Directory of Open Access Journals (Sweden)

    VELANDIA MORA ANA LUISA

    2009-07-01

    Full Text Available Este trabajo se propone hacer visible la presencia de Helen Howitt en la enfermería latinoamericana. Paralelamente pretende hacer un análisis de la influencia política del Servicio Cooperativo Interamericano de Salud Pública en la enfermería de la región y la presencia de organizaciones religiosas, especialmente norteamericanas, en varios países latinoamericanos. Helen Howitt, enfermera canadiense egresada de la Universidad de Alberta, fue enviada en 1942 por la Organización Panamericana de la Salud, OPS para que asesorara en Colombia al Ministerio de Trabajo, Higiene y Previsión Social. Pasó a formar parte del proyecto de apertura y organización de la Escuela Nacional Superior de Enfermeras, y fue su primera directora. Helen Howitt fue directora de la Escuela de Enfermería del Hospital Santo Tomás de la Zona del Canal de Panamá entre 1933 y 1938, luego fundadora y primera directora de la Escuela Nacional Superior de Enfermeras de Colombia entre los años 1943 y 1951; posteriormente de la Escuela Nacional de Enfermeras de Bolivia entre 1953 y 1959, cuando fue invitada a cumplir un cargo similar en Venezuela. A todos estos países llegó primero como consultora del respectivo Ministerio de Salud, a través de convenios con el Servicio Cooperativo Interamericano de Salud Pública. La Fundación Rockefeller daba becas para todos los países latinos. En la Escuela del Hospital Santo Tomás de Panamá había estudiantes de toda la América Central, Venezuela, Colombia, hasta del Ecuador y la Argentina. La Rockefeller quería unificar la enfermería en toda Latinoamérica. Llegó primero a Venezuela; y las enfermeras que se graduaron en Panamá fueron las líderes en América Latina, donde trataron de fundar escuelas.This work's purpose is to make more visible Hellen Howitt's presence in Latin American nursing. At the same time it pretends to make an analysis on the political influence of the Interamerican Cooperative Public

  1. Isocrates’ Encomium of Helen: Reply to Gorgias and the Unicity of his Epideictic Discourse

    Directory of Open Access Journals (Sweden)

    Ticiano Curvelo Estrela de Lacerda

    2017-06-01

    Full Text Available Around 390-80 BC, the Athenian Isocrates composed one of his first speeches as an educator, the Helen. According to most scholars, this speech seems to be a replica to the famous Eulogy of Helen by Gorgias, which, according to Isocrates (§14, would have made not an encomium, but an apology on behalf of the Spartan queen. In the Isocratic encomium, we noticed some dissonance between the proemium and the rest of the work. In fact, we do not have in the proemium the expected laudatory tone, but it is configured, on the contrary, as an invective to sophists groups contemporary of Isocrates, and culminates in the end with an allusive criticism of the Leontine sophist. Thus, what the IV century BC sophists have in common with the mythical Helen? In other words, would there be a common thread that would ensure a discursive unity in that epideictic exercise of Isocrates? This study aims to discuss these issues and review how they are being discussed by some commentators of Isocrates, since the Rhetoric of Aristotle to the reception of the matter among some scholars of Classical Rhetoric in the XX century.

  2. Proximal ecological effects of the 1980 eruptions of Mount St. Helens

    Science.gov (United States)

    Swanson, F. J.

    1988-01-01

    The diversity of ecosystems and volcanic processes involved in the 1980 eruptions of Mount St. Helens, southwest Washington, provide an excellent setting for examining effects of volcanic events on ecosystems. These eruptions included a lateral blast, debris avalanche, mudflows, pyroclastic flows, and airfall tephra. Affected ecosystems within 30 km of the vent were lakes, streams, upland and riparian forest, and meadows. Ecological disturbances imposed by the Mount St. Helens events were predominantly physical, rather than climatic or chemical which are the dominant classes of disturbances considered in analysis of global catastrophes. Analysis of ecosystem response to disturbance should be based on consideration of composition and structure of the predisturbance system in terms that represent potential survivability of organisms, mechanisms in the primary disturbance, initial survivors, secondary disturbances arising from the primary disturbance and the biological responses to secondary disturbances, invasion of the site by new propagules, interactions among secondary disturbance processes and surviving and invading organisms. Predicting ecosystem response to disturbance is enchanced by considering the mechanisms of disturbance rather than type of disturbance. In the 1980 Mount St. Helens events, the disturbance types, involved primarily the mechanisms of sedimentation, heating, and shear stress. Each disturbance type involved one or more mechanisms. Ecosystem response varied greatly across the landscape. Analysis of ecosystem response to disturbance, regardless of type, should include detailed consideration of the properties of individual species, primary and secondary disturbance mechanisms, and their distributions across landscapes.

  3. Storia di un Vulcano I GPS di Trimble per monitorare Mount St. Helen

    Directory of Open Access Journals (Sweden)

    Edoardo Carlucci

    2005-10-01

    Full Text Available Venticinque anni fa il peggior disastro vulcanico nella storia degli Stati Uniti attirò l’attenzione di tutto il mondo. L’esplosione, preceduta da un paio di mesi di piccole scosse di terremoto, squarciò il fianco Nord del vulcano St. Helens il 18 maggio 1980, provocando allo stesso tempo il più grande smottamento della storia. L’eruzione seguente all’esplosione cancellò tutta l’area circostante, facendo 57 vittime tra la popolazione e formando un profondo cratere a forma di ferro di cavallo; per sei anni si susseguirono altre piccole eruzioni che portarono alla formazione di un’altra cupola lavica dopodiché Loo-wit (il Guardiano del Fuoco, come i nativi americani usavano chiamare il vulcano St. Helens, si addormentò di nuovo. Prima del fatidico giorno Mount St. Helens era la nona cima per altezza negli Stati Uniti; dopo il 18 maggio essa diventava la trentesima.

  4. Mount St. Helens, 1980 to now—what’s going on?

    Science.gov (United States)

    Dzurisin, Daniel; Driedger, Carolyn L.; Faust, Lisa M.

    2013-01-01

    Mount St. Helens seized the world’s attention in 1980 when the largest historical landslide on Earth and a powerful explosive eruption reshaped the volcano, created its distinctive crater, and dramatically modified the surrounding landscape. An enormous lava dome grew episodically in the crater until 1986, when the volcano became relatively quiet. A new glacier grew in the crater, wrapping around and partly burying the lava dome. From 1987 to 2003, sporadic earthquake swarms and small steam explosions indicated that magma (molten rock) was being replenished deep underground. In 2004, steam-and-ash explosions heralded the start of another eruption. A quieter phase of continuous lava extrusion followed and lasted until 2008, building a new dome and doubling the volume of lava on the crater floor. Scientists with the U.S. Geological Survey and University of Washington’s Pacific Northwest Seismograph Network maintain constant watch for signs of renewed activity at Mount St. Helens and other Cascade volcanoes. Now is an ideal time for both actual and virtual visitors to Mount St. Helens to learn more about dramatic changes taking place on and beneath this active volcano.

  5. Application of ophthalmic ultrasonographyin DR

    Directory of Open Access Journals (Sweden)

    Ya-Ke Li

    2018-02-01

    Full Text Available AIM: To investigate the value of ultrasonography in diabetic retinopathy(DR. METHODS: Totally 103 cases(103 eyesof type 2 diabetes mellitus were selected from May 2015 to May 2017 in our hospital, there were 32 patients 32 eyes with non diabetic retinopathy(NDR, 40 patients 40 eyes with non proliferative diabetic retinopathy(NPDR, and 31 patients 31 eyes with proliferative diabetic retinopathy(PDR, 40 healthy volunteers(40 eyeswere selected as control group, the maximum systolic blood flow velocity(PSV, end diastolic velocity(EDVand resistance index(RIof the central retinal artery(CRA, posterior ciliary artery(PCAand ophthalmic artery(OAwere detected by color Doppler ultrasound. RESULTS: The difference of PSV, EDV and RI of CRA, PCA and OA in each group was statistically significant(PPPPCONCLUSION: Color Doppler ultrasound monitoring the hemodynamic changes of ocular blood vessels in diabetes can provide evidence for early detection of diabetic retinopathy.

  6. In Memoriam: Dr. Frank John Fenner

    Centers for Disease Control (CDC) Podcasts

    2011-04-22

    This podcast reflects on one of the greatest pioneers in virology, Dr. Frank John Fenner. Dr. Frederick Murphy, a member of EID's editorial board and the Institute of Medicine, and professor of Pathology at the University of Texas Medical Branch in Galveston, shares professional and personal stories of Dr. Frank Fenner.  Created: 4/22/2011 by National Center for Emerging Zoonotic and Infectious Diseases (NCEZID).   Date Released: 4/26/2011.

  7. Dr. von Braun Briefing Walt Disney

    Science.gov (United States)

    1965-01-01

    Dr. von Braun began his association with Walt Disney in the 1950s when the rocket scientist appeared in three Disney television productions related to the exploration of space. Years later, Dr. von Braun invited Disney and his associates to tour the Marshall Space Flight Center (MSFC) in Huntsville, Alabama. This photograph is dated April 13, 1965. From left are R.J. Schwinghamer from the MSFC, Disney, B.J. Bernight, and Dr. von Braun.

  8. China's Investment Leade Dr, Alyce Su

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    @@ I. Professional Background Dr. Alyce Su specializes in investment managemeng, managing portfolios consisted of investment opportunities originated from China's growth and internationalization, both'outbound and inbound.

  9. El Dr. Guillermo Contreras Da Silva, una figura señera en la microbiología y la salud pública chilena

    OpenAIRE

    Cabello,Felipe C

    2008-01-01

    The influence of the work of Dr. Guillermo Contreras Da Silva and his colaborators on the evolution of microbiology in Chile is briefly analyzed. Dr. Contreras was trained in modern virology at Yale University with Dr. J. Melnick under the sponsorhip of the Rockefeller Foundation. During this training, he used serological methods to classify Cocksakie viruses. After his return to Chile, he studied the epidemiology of enteroviruses, including poliovirus. His laboratory, the country's first in ...

  10. 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.

  11. High-resolution digital elevation model of Mount St. Helens crater and upper North Fork Toutle River basin, Washington, based on an airborne lidar survey of September 2009

    Science.gov (United States)

    Mosbrucker, Adam

    2014-01-01

    The lateral blast, debris avalanche, and lahars of the May 18th, 1980, eruption of Mount St. Helens, Washington, dramatically altered the surrounding landscape. Lava domes were extruded during the subsequent eruptive periods of 1980–1986 and 2004–2008. More than three decades after the emplacement of the 1980 debris avalanche, high sediment production persists in the North Fork Toutle River basin, which drains the northern flank of the volcano. Because this sediment increases the risk of flooding to downstream communities on the Toutle and Cowlitz Rivers, the U.S. Army Corps of Engineers (USACE), under the direction of Congress to maintain an authorized level of flood protection, built a sediment retention structure on the North Fork Toutle River in 1989 to help reduce this risk and to prevent sediment from clogging the shipping channel of the Columbia River. From September 16–20, 2009, Watershed Sciences, Inc., under contract to USACE, collected high-precision airborne lidar (light detection and ranging) data that cover 214 square kilometers (83 square miles) of Mount St. Helens and the upper North Fork Toutle River basin from the sediment retention structure to the volcano's crater. These data provide a digital dataset of the ground surface, including beneath forest cover. Such remotely sensed data can be used to develop sediment budgets and models of sediment erosion, transport, and deposition. The U.S. Geological Survey (USGS) used these lidar data to develop digital elevation models (DEMs) of the study area. DEMs are fundamental to monitoring natural hazards and studying volcanic landforms, fluvial and glacial geomorphology, and surface geology. Watershed Sciences, Inc., provided files in the LASer (LAS) format containing laser returns that had been filtered, classified, and georeferenced. The USGS produced a hydro-flattened DEM from ground-classified points at Castle, Coldwater, and Spirit Lakes. Final results averaged about five laser last-return

  12. Predictability of Stock Returns

    Directory of Open Access Journals (Sweden)

    Ahmet Sekreter

    2017-06-01

    Full Text Available Predictability of stock returns has been shown by empirical studies over time. This article collects the most important theories on forecasting stock returns and investigates the factors that affecting behavior of the stocks’ prices and the market as a whole. Estimation of the factors and the way of estimation are the key issues of predictability of stock returns.

  13. Large-amplitude traveling ionospheric distrubance produced by the May 18, 1980, explosion of Mount St. Helens

    International Nuclear Information System (INIS)

    Roberts, D.H.; Klobuchar, J.A.; Fougere, P.F.; Hendrickson, D.H.

    1982-01-01

    A remarkable long-lived, large-scale traveling ionospheric disturbance (TID), excited by the May 18, 1980, explosion of Mount St. Helens, has been detected in total electron content monitor data. Oscillatory perturbations in the electron column density of the ionosphere with amplitudes about 10% of the nominal daytime content were detected at three stations whose ionospheric penetration points lie between 1610 and 1890 km from Mount St. Helens. Smaller perturbations were detected at five of six additional stations between 3760 and 4950 km away. The period of the TID increased linearly with great-circle distance from Mount St. Helens, ranging from roughly-equal37 min at the nearest station to roughly-equal116 min at the most distant one. The TID persisted for at least four cycles at the three close stations and three cycles at the more distant stations and was qualitatively similar to TID's produced by the low-altitude thermonuclear detonations of the 1960's. The disturbance front of this TID accelerated from an average velocity of roughly-equal350 m/s between Mt. St. Helens and the close stations to an average velocity of roughly-equal550 m/s to the more distant ones.A model based on the free wave response of an isothermal atmosphere to a point disturbance provides a good fit to the data at the three closest stations, but no such model can account for all of the data. Modeling of the long-distance behavior of the Mount St. Helens TID in terms of upper-atmosphere guided gravity waves is complicated by the requirement of exciting them by a ground-level explosion. There was no evidence for a strong supersonic shock wave in the ionosphere. As a result, the Mount St. Helens disturbance may prove to be a cleaner test of detailed theories of the point excitation and propagation of gravity waves in a realistic atmosphere than were TID's excited by thermonuclear weapons

  14. VP Structure of Mount St. Helens, Washington, USA, imaged with local earthquake tomography

    Science.gov (United States)

    Waite, G.P.; Moran, S.C.

    2009-01-01

    We present a new P-wave velocity model for Mount St. Helens using local earthquake data recorded by the Pacific Northwest Seismograph Stations and Cascades Volcano Observatory since the 18 May 1980 eruption. These data were augmented with records from a dense array of 19 temporary stations deployed during the second half of 2005. Because the distribution of earthquakes in the study area is concentrated beneath the volcano and within two nearly linear trends, we used a graded inversion scheme to compute a coarse-grid model that focused on the regional structure, followed by a fine-grid inversion to improve spatial resolution directly beneath the volcanic edifice. The coarse-grid model results are largely consistent with earlier geophysical studies of the area; we find high-velocity anomalies NW and NE of the edifice that correspond with igneous intrusions and a prominent low-velocity zone NNW of the edifice that corresponds with the linear zone of high seismicity known as the St. Helens Seismic Zone. This low-velocity zone may continue past Mount St. Helens to the south at depths below 5??km. Directly beneath the edifice, the fine-grid model images a low-velocity zone between about 2 and 3.5??km below sea level that may correspond to a shallow magma storage zone. And although the model resolution is poor below about 6??km, we found low velocities that correspond with the aseismic zone between about 5.5 and 8??km that has previously been modeled as the location of a large magma storage volume. ?? 2009 Elsevier B.V.

  15. Eruption prediction aided by electronic tiltmeter data at mount st. Helens.

    Science.gov (United States)

    Dzurisin, D; Westphal, J A; Johnson, D J

    1983-09-30

    Telemetry from electronic tiltmeters in the crater at Mount St. Helens contributed to accurate predictions of all six effusive eruptions from June 1981 to August 1982. Tilting of the crater floor began several weeks before each eruption, accelerated sharply for several days, and then abruptly changed direction a few minutes to days before extrusion began. Each episode of uplift was caused by the intrusion of magma into the lava dome from a shallow source, causing the dome to inflate and eventually rupture. Release of magma pressure and increased surface loading by magma added to the dome combined to cause subsidence just prior to extrusion.

  16. Evaluation of radon progeny from Mount St. Helens eruptions. Final report

    International Nuclear Information System (INIS)

    Lepel, E.A.; Olsen, K.B.; Thomas, V.W.; Eichner, F.N.

    1982-09-01

    A network of twelve monitoring sites around Mount St. Helens was established to evaluate possible short-lived radioactivity in the fallen ash. Seven sites were located near major population centers of Washington and Oregon, and five sites were located within 80 km of the volcano. Each site monitored the radioactivity present by the use of thermoluminescent dosimeters which recorded the total exposure to radioactivity over the exposure period. Eruptions occurring on July 22, August 7, and October 16 to 18, 1980 were monitored. No statistically significant quantities of measurable radon daughters were observed

  17. Helen Flanders Dunbar, John Dewey, and clinical pragmatism: reflections on method in psychosomatic medicine and bioethics.

    Science.gov (United States)

    Hart, Curtis W

    2002-01-01

    This article outlines the method utilized by physicians and major figures in the founding of Clinical Pastoral Education, Helen Flanders Dunbar, in her work of 1943, Psychosomatic Diagnosis, and relates it to the currently evolving approach in bioethics known as clinical pragmatism. It assesses Dewey's influence on both Dunbar in psychosomatic medicine and clinical pragmatism in bioethics, and illustrates the breadth of influence of the school of philosophical thought known as pragmatism with which Dewey's name and those of William James and Charles Sanders Pierce are most often identified.

  18. On the Social Nature of Objectivity: Helen Longino and Justin Biddle

    Directory of Open Access Journals (Sweden)

    Jaana Eigi

    2015-11-01

    Full Text Available According to Helen Longino, objectivity is necessarily social as it depends on critical interactions in community. Justin Biddle argues that Longino’s account presupposes individuals that are completely open to any criticism; as such individuals are in principle able to criticise their beliefs on their own, Longino's account is not really social. In the first part of my paper I argue that even for completely open individuals, criticism for maintaining objectivity is only possible in community. In the second part I challenge Biddle’s interpretation of Longino’s conception of the individual. I conclude that Longino’s account is necessarily social.

  19. Gaia DR2 documentation Chapter 7: Variability

    Science.gov (United States)

    Eyer, L.; Guy, L.; Distefano, E.; Clementini, G.; Mowlavi, N.; Rimoldini, L.; Roelens, M.; Audard, M.; Holl, B.; Lanzafame, A.; Lebzelter, T.; Lecoeur-Taïbi, I.; Molnár, L.; Ripepi, V.; Sarro, L.; Jevardat de Fombelle, G.; Nienartowicz, K.; De Ridder, J.; Juhász, Á.; Molinaro, R.; Plachy, E.; Regibo, S.

    2018-04-01

    This chapter of the Gaia DR2 documentation describes the models and methods used on the 22 months of data to produce the Gaia variable star results for Gaia DR2. The variability processing and analysis was based mostly on the calibrated G and integrated BP and RP photometry. The variability analysis approach to the Gaia data has been described in Eyer et al. (2017), and the Gaia DR2 results are presented in Holl et al. (2018). Detailed methods on specific topics will be published in a number of separate articles. Variability behaviour in the colour magnitude diagram is presented in Gaia Collaboration et al. (2018c).

  20. An Interview with Dr. Walter Lear

    Directory of Open Access Journals (Sweden)

    The Editors

    2009-03-01

    Full Text Available In this issue of the English version of Social Medicine we are publishing the first of several pamphlets loaned to us by the US Health Activism History Collection. To introduce this collection we travelled to Philadelphia on June 18, 2008 to interview Dr. Walter J. Lear. Dr Lear, born in 1923, is the person responsible for the collection. In a wide-ranging interview in his home Dr. Lear discussed his personal background, the origins and purpose of the collection, the impact of the McCarthy period on the US health left, as well as his vision for the future.

  1. Abd-Allah, Dr. Adel-Gamil

    African Journals Online (AJOL)

    Abd-Allah, Dr. Adel-Gamil. Vol 12, No 4 (2000) - Articles CORRELATION BETWEEN UTERINE ARTERY FLOW VELOCITY WAVEFORMS AND ENDOMETRIAL HISTOPATHOLOGY IN WOMEN WITH PERIMENOPAUSAL AND POSTMENOPAUSAL BLEEDING. Details. ISSN: 1110-5607. AJOL African Journals Online.

  2. Raghavarao, Dr Karumanchi Srisaila Mallikarjuna S

    Indian Academy of Sciences (India)

    Elected: 2014 Section: Engineering & Technology. Raghavarao, Dr Karumanchi Srisaila Mallikarjuna S Ph.D. (Mumbai), FNAE, FNAAS. Specialization: Food Engineering, Biotechnology Address: Chief Scientist, Department of Food Engineering, Central Food Technological Research Institute, Mysore 570 020, Karnataka

  3. Dr. Shi Hanzhang's Experience in Treating Andropathy

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    @@ Dr. Shi Hanzhang (施汉章) of Dongzhimen Hospital affiliated to Beijing University of Traditional Chinese Medicine is experienced in both teaching and clinical practice, especially in treating andropathy, such as sexual disorder, infertility, and hyperplasia of the prostate. The author has the honour to follow him for study and really learned a lot from him. A brief introduction to Dr. Shi's way of thinking in treatment is as follows.

  4. Implementing Python for DrRacket

    OpenAIRE

    Ramos, Pedro Palma; Leitão, António Menezes

    2014-01-01

    The Python programming language is becoming increasingly popular in a variety of areas, most notably among novice programmers. On the other hand, Racket and other Scheme dialects are considered excellent vehicles for introducing Computer Science concepts. This paper presents an implementation of Python for Racket and the DrRacket IDE. This allows Python programmers to use Racket libraries and vice versa, as well as using DrRacket's pedagogic features. In particular, it allows architects and d...

  5. Zircon reveals protracted magma storage and recycling beneath Mount St. Helens

    Science.gov (United States)

    Claiborne, L.L.; Miller, C.F.; Flanagan, D.M.; Clynne, M.A.; Wooden, J.L.

    2010-01-01

    Current data and models for Mount St. Helens volcano (Washington, United States) suggest relatively rapid transport from magma genesis to eruption, with no evidence for protracted storage or recycling of magmas. However, we show here that complex zircon age populations extending back hundreds of thousands of years from eruption age indicate that magmas regularly stall in the crust, cool and crystallize beneath the volcano, and are then rejuvenated and incorporated by hotter, young magmas on their way to the surface. Estimated dissolution times suggest that entrained zircon generally resided in rejuvenating magmas for no more than about a century. Zircon elemental compositions reflect the increasing influence of mafic input into the system through time, recording growth from hotter, less evolved magmas tens of thousands of years prior to the appearance of mafic magmas at the surface, or changes in whole-rock geochemistry and petrology, and providing a new, time-correlated record of this evolution independent of the eruption history. Zircon data thus reveal the history of the hidden, long-lived intrusive portion of the Mount St. Helens system, where melt and crystals are stored for as long as hundreds of thousands of years and interact with fresh influxes of magmas that traverse the intrusive reservoir before erupting. ?? 2010 Geological Society of America.

  6. The mechanisms of fine particle generation and electrification during Mount St. Helens volcanic eruption

    Science.gov (United States)

    Cheng, R. J.

    1982-01-01

    Microscopical investigation of volcanic ash collected from ground stations during Mount St. Helens eruptions reveal a distinctive bimodel size distribution with high concentrations of particle ranges at (1) 200-100 microns and (2) 20-0.1 microns. Close examination of individual particles shows that most larger ones are solidified magma particles of porous pumice with numerous gas bubbles in the interior and the smaller ones are all glassy fragments without any detectable gas bubbles. Elemental analysis demonstrates that the fine fragments all have a composition similar to that of the larger pumice particles. Laboratory experiments suggest that the formation of the fine fragments is by bursting of glassy bubbles from a partially solidified surface of a crystallizing molten magma particle. The production of gas bubbles is due to the release of absorbed gases in molten magma particles when solubility decreases during phase transition. Diffusion cloud chamber experiments strongly indicate that sub-micron volcanic fragments are highly hygroscopic and extremely active as cloud condensation nuclei. Ice crystals also are evidently formed on those fragments in a supercooled (-20 C) cloud chamber. It has been reported that charge generation from ocean volcanic eruptions is due to contact of molten lava with sea water. This seems to be insufficient to explain the observed rapid and intense lightning activities over Mount St. Helens eruptions. Therefore, a hypothesis is presented here that highly electrically charged fine solid fragments are ejected by bursting of gas bubbles from the surface of a crystallizing molten magma particles.

  7. Predictable return distributions

    DEFF Research Database (Denmark)

    Pedersen, Thomas Quistgaard

    trace out the entire distribution. A univariate quantile regression model is used to examine stock and bond return distributions individually, while a multivariate model is used to capture their joint distribution. An empirical analysis on US data shows that certain parts of the return distributions......-of-sample analyses show that the relative accuracy of the state variables in predicting future returns varies across the distribution. A portfolio study shows that an investor with power utility can obtain economic gains by applying the empirical return distribution in portfolio decisions instead of imposing...

  8. Democracy and Schooling in California: The Legacy of Helen Heffernan and Corinne Seeds. Historical Studies in Education

    Science.gov (United States)

    Weiler, Kathleen

    2011-01-01

    Helen Heffernan and Corinne Seeds were nationally recognized as leaders of the progressive education movement and were key figures in what was probably the most concerted attempt to put the ideals of progressive education into practice in a state-wide system of public education in the United States. This book examines the struggle over public…

  9. Kuidas toetate sel õppeaastal oma valla koolilapsi? / Külle Viks, Helen Metsma, Aivar Surva...[jt.

    Index Scriptorium Estoniae

    2009-01-01

    Küsimusele vastavad: Türi vallavalitsuse haridusspetsialist Külle Viks, Sõmerpalu valla lastekaitse ja sotsiaaltoetuste spetsialist Helen Metsma, Mäetaguse vallavanem Aivar Surva, Rapla abivallavanem Imbi Kalberg, Kärdla linna haridusnõunik Juta Alev, Albu vallavalitsuse sotsiaalnõunik Claire Miljukova, Võru linnavalitsuse haridusspetsialist Kristi Aavakivi

  10. Mount St. Helens ash and mud: Chemical properties and effects on germination and establishment of trees and browse plants.

    Science.gov (United States)

    M.A. Radwan; Dan L. Campbell

    1981-01-01

    Chemical properties of ash and mud from the 1980 volcanic eruption of Mount St. Helens and their effect on germination and seedling production of selected plants were studied. The volcanic materials were low in some important nutrients and cation exchange capacity, and they adversely affected seedling production. Catsear, a preferred wildlife browse, and lodgepole pine...

  11. Leonardo da Vinci jõudis Tallinna / Orest Kormašov, Helen Kokk ; intervjueerinud Ants Juske

    Index Scriptorium Estoniae

    Kormašov, Orest, 1964-

    2010-01-01

    Kadrioru Kunstimuuseumis eksponeeritakse 5.-12. veebruarini 2010. a. Leonardo da Vinci arvatavat autoportreed. Itaalia kunstiajaloolased kaasasid autoportree uurimisse Tallinna Ülikooli maaliosakonna juhataja Orest Kormašovi, kes teostas klassikalise portreeskulptuuri, ja Eesti Kunstiakadeemia graafilise disaini tudengi Helen Koka, kes valmistas arvutiimitatsiooni

  12. Impossible Practice and Theories of the Impossible: A Response to Helene Illeris's "Potentials of Togetherness"

    Science.gov (United States)

    Kallio-Tavin, Mira

    2014-01-01

    In a recent commentary in "Studies in Art Education," Helene Illeris (2013) discussed the idea of "performative experimental communities" via a critique of visual culture pedagogy and the romanticism of community-oriented art education in Nordic countries. Illeris underpinned her arguments with Jean-Luc Nancy's (1997)…

  13. Modulation of TRAIL resistance in colon carcinoma cells: Different contributions of DR4 and DR5

    International Nuclear Information System (INIS)

    Geelen, Caroline MM van; Pennarun, Bodvael; Le, Phuong TK; Vries, Elisabeth GE de; Jong, Steven de

    2011-01-01

    rhTRAIL is a therapeutic agent, derived from the TRAIL cytokine, which induces apoptosis in cancer cells by activating the membrane death receptors 4 and 5 (DR4 and DR5). Here, we investigated each receptor's contribution to rhTRAIL sensitivity and rhTRAIL resistance. We assessed whether agonistic DR4 or DR5 antibodies could be used to circumvent rhTRAIL resistance, alone or in combination with various chemotherapies. Our study was performed in an isogenic model comprised of the SW948 human colon carcinoma cell line and its rhTRAIL resistant sub-line SW948-TR. Effects of rhTRAIL and agonistic DR4/DR5 antibodies on cell viability were measured using MTT assays and identification of morphological changes characteristic of apoptosis, after acridine orange staining. Sensitivity to the different death receptor ligands was stimulated using pretreatment with the cytokine IFN-gamma and the proteasome inhibitor MG-132. To investigate the mechanisms underlying the changes in rhTRAIL sensitivity, alterations in expression levels of targets of interest were measured by Western blot analysis. Co-immunoprecipitation was used to determine the composition of the death-inducing signalling complex at the cell membrane. SW948 cells were sensitive to all three of the DR-targeting agents tested, although the agonistic DR5 antibody induced only weak caspase 8 cleavage and limited apoptosis. Surprisingly, agonistic DR4 and DR5 antibodies induced equivalent DISC formation and caspase 8 cleavage at the level of their individual receptors, suggesting impairment of further caspase 8 processing upon DR5 stimulation. SW948-TR cells were cross-resistant to all DR-targeting agents as a result of decreased caspase 8 expression levels. Caspase 8 protein expression was restored by MG-132 and IFN-gamma pretreatment, which also re-established sensitivity to rhTRAIL and agonistic DR4 antibody in SW948-TR. Surprisingly, MG-132 but not IFN-gamma could also increase DR5-mediated apoptosis in SW948

  14. Modulation of TRAIL resistance in colon carcinoma cells: Different contributions of DR4 and DR5

    Directory of Open Access Journals (Sweden)

    de Vries Elisabeth GE

    2011-01-01

    Full Text Available Abstract Background rhTRAIL is a therapeutic agent, derived from the TRAIL cytokine, which induces apoptosis in cancer cells by activating the membrane death receptors 4 and 5 (DR4 and DR5. Here, we investigated each receptor's contribution to rhTRAIL sensitivity and rhTRAIL resistance. We assessed whether agonistic DR4 or DR5 antibodies could be used to circumvent rhTRAIL resistance, alone or in combination with various chemotherapies. Methods Our study was performed in an isogenic model comprised of the SW948 human colon carcinoma cell line and its rhTRAIL resistant sub-line SW948-TR. Effects of rhTRAIL and agonistic DR4/DR5 antibodies on cell viability were measured using MTT assays and identification of morphological changes characteristic of apoptosis, after acridine orange staining. Sensitivity to the different death receptor ligands was stimulated using pretreatment with the cytokine IFN-gamma and the proteasome inhibitor MG-132. To investigate the mechanisms underlying the changes in rhTRAIL sensitivity, alterations in expression levels of targets of interest were measured by Western blot analysis. Co-immunoprecipitation was used to determine the composition of the death-inducing signalling complex at the cell membrane. Results SW948 cells were sensitive to all three of the DR-targeting agents tested, although the agonistic DR5 antibody induced only weak caspase 8 cleavage and limited apoptosis. Surprisingly, agonistic DR4 and DR5 antibodies induced equivalent DISC formation and caspase 8 cleavage at the level of their individual receptors, suggesting impairment of further caspase 8 processing upon DR5 stimulation. SW948-TR cells were cross-resistant to all DR-targeting agents as a result of decreased caspase 8 expression levels. Caspase 8 protein expression was restored by MG-132 and IFN-gamma pretreatment, which also re-established sensitivity to rhTRAIL and agonistic DR4 antibody in SW948-TR. Surprisingly, MG-132 but not IFN

  15. Classifying Returns as Extreme

    DEFF Research Database (Denmark)

    Christiansen, Charlotte

    2014-01-01

    I consider extreme returns for the stock and bond markets of 14 EU countries using two classification schemes: One, the univariate classification scheme from the previous literature that classifies extreme returns for each market separately, and two, a novel multivariate classification scheme tha...

  16. [Portrait of Dr Milenko Petrović (1884-1950)].

    Science.gov (United States)

    Kljaić, Leposava; Borota, Radoslav

    2008-01-01

    Dr Milenko Petrović was one of the very distinguished physicians in the history of Sombor city, who significantly contributed to the development of health care in Voivodina. His father Dimitrije was a professor in the High Teacher-training School in Sombor, recognized writer and politician of his epoch. He was born in Sombor in 1884, where he was educated and finished grammar school. For medical studies he moved to Budapest as a boarder of the famous Tekelianum, and graduated in 1908. He started specialisation in surgery, but being a great patriot he voluntarily recruited in the Serbian army to fight in Balkan liberation wars against Turkey. For his excellent work as a war surgeon he obtained many recognitions. After completing specialization in surgery in Debrecin, he returned to his native city Sombor, where he intended to practice as a physician, but because af the outbreak of the first world he was mobilized and sent to the front in Galicia. After the war he again returned to Sombor where he was immediatelly nominated for the main county physician and then begins his fruitful many year's work on the establishment and promotion of the health care in Sombor and broader territory. As the main county phsician he initiated the foundation and construction of the hospital in Sombor, because of high mortality rate among children, and spreading of contagious diseases like tuberculosis and trachoma. The construction of the hospital was completed in 1925 and Dr. Petrović was appointed its first director and this duty he performed for many years till the World War 2 in 1941. Under his management the hospital in Sombor became one of the best quality hospitals in the country and gave a big contribution to the promotion of health of the inhabitants of Voivodina. In spite of his extensive duties in the hospital. Dr. Milenko Petrović was very much engaged in social work, as the president of library "Laza Kosti ć". in the Soko association, Fire brigade, Rotary club, and he

  17. Helen Howitt: una semilla canadiense en la enfermería latinoamericana

    Directory of Open Access Journals (Sweden)

    ANA LUISA VELANDIA MORA

    2009-07-01

    Full Text Available Este trabajo se propone hacer visible la presencia de Helen Howitt en la enfermería latinoamericana. Paralelamente pretende hacer un análisis de la influencia política del Servicio Cooperativo Interamericano de Salud Pública en la enfermería de la región y la presencia de organizaciones religiosas, especialmente norteamericanas, en varios países latinoamericanos. Helen Howitt, enfermera canadiense egresada de la Universidad de Alberta, fue enviada en 1942 por la Organización Panamericana de la Salud, OPS para que asesorara en Colombia al Ministerio de Trabajo, Higiene y Previsión Social. Pasó a formar parte del proyecto de apertura y organización de la Escuela Nacional Superior de Enfermeras, y fue su primera directora. Helen Howitt fue directora de la Escuela de Enfermería del Hospital Santo Tomás de la Zona del Canal de Panamá entre 1933 y 1938, luego fundadora y primera directora de la Escuela Nacional Superior de Enfermeras de Colombia entre los años 1943 y 1951; posteriormente de la Escuela Nacional de Enfermeras de Bolivia entre 1953 y 1959, cuando fue invitada a cumplir un cargo similar en Venezuela. A todos estos países llegó primero como consultora del respectivo Ministerio de Salud, a través de convenios con el Servicio Cooperativo Interamericano de Salud Pública. La Fundación Rockefeller daba becas para todos los países latinos. En la Escuela del Hospital Santo Tomás de Panamá había estudiantes de toda la América Central, Venezuela, Colombia, hasta del Ecuador y la Argentina. La Rockefeller quería unificar la enfermería en toda Latinoamérica. Llegó primero a Venezuela; y las enfermeras que se graduaron en Panamá fueron las líderes en América Latina, donde trataron de fundar escuelas.

  18. Separating volcanic deformation and atmospheric signals at Mount St. Helens using Persistent Scatterer InSAR

    Science.gov (United States)

    Welch, Mark D.; Schmidt, David A.

    2017-09-01

    Over the past two decades, GPS and leveling surveys have recorded cycles of inflation and deflation associated with dome building eruptions at Mount St. Helens. Due to spatial and temporal limitations of the data, it remains unknown whether any deformation occurred prior to the most recent eruption of 2004, information which could help anticipate future eruptions. Interferometric Synthetic Aperture Radar (InSAR), which boasts fine spatial resolution over large areas, has the potential to resolve pre-eruptive deformation that may have occurred, but eluded detection by campaign GPS surveys because it was localized to the edifice or crater. Traditional InSAR methods are challenging to apply in the Cascades volcanic arc because of a combination of environmental factors, and past attempts to observe deformation at Mount St. Helens were unable to make reliable observations in the crater or on much of the edifice. In this study, Persistent Scatterer InSAR, known to mitigate issues of decorrelation caused by environmental factors, is applied to four SAR data sets in an attempt to resolve localized sources of deformation on the volcano between 1995 and 2010. Many interferograms are strongly influenced by phase delay from atmospheric water vapor and require correction, evidenced by a correlation between phase and topography. To assess the bias imposed by the atmosphere, we perform sensitivity tests on a suite of atmospheric correction techniques, including several that rely on the correlation of phase delay to elevation, and explore approaches that directly estimate phase delay using the ERA-Interim and NARR climate reanalysis data sets. We find that different correction methods produce velocities on the edifice of Mount St. Helens that differ by up to 1 cm/yr due to variability in how atmospheric artifacts are treated in individual interferograms. Additionally, simple phase-based techniques run the risk of minimizing any surface deformation signals that may themselves be

  19. Photogrammetric Analysis of the Current Dome-Building Eruption of Mount St. Helens Volcano

    Science.gov (United States)

    Diefenbach, A. K.; Dzurisin, D.; Crider, J. G.; Schilling, S. P.

    2006-12-01

    Beginning in October 2004 and continuing to present day, the eruption of Mount St. Helens has provided a unique opportunity to experiment with new tools and techniques to study the dome-building eruption of a Cascade volcano. At the onset of eruption, a permanent camera station called Sugar Bowl was installed on the northeast rim of the crater about 2 km from the vent. Since that time, four additional cameras have been installed on the rim and crater floor to provide continuous visual observation of dome growth and crater conditions. We have analyzed images from four of the cameras to measure variations in three-dimensional lineal growth rates of lava spines extruding from the growing dome. Using photogrammetric techniques it is possible to obtain quantitative information on the geometry and displacement of a changing topographic model, in this case the evolving dome and glaciers in the crater of Mount St. Helens. The technique is an inexpensive, high-resolution, and efficient method that uses standard commercial software and an off-the-shelf digital camera to determine the x, y, z positions of selected points on the model surface. The model geometry at any given time is defined by the positions of all the points, and displacements are measured by tracking the changing positions of the points through time. Lineal extrusion rates during the first few months of the eruption ranged from 6-11 m/d, and subsequent estimates by other techniques were 4-5 m/d (Dzurisin et. al, 2005). For the past six months the extrusion rate has leveled off at 1 m/d, possibly indicative of steady-state extrusion or an approaching pause in the eruption. Another aspect of the project involves the use of overlapping oblique photos taken from a helicopter in 2004 and 2005 to produce fast and coarse digital elevation models (DEMs), which supplement high resolution DEMs produced by the USGS every 1 - 2 months. Comparing these results with seismicity and ground tilt measured by shallow borehole

  20. Modulation of TRAIL resistance in colon carcinoma cells : Different contributions of DR4 and DR5

    NARCIS (Netherlands)

    van Geelen, Caroline M. M.; Pennarun, Bodvael; Le, Phuong T. K.; de Vries, Elisabeth G. E.; de Jong, Steven

    2011-01-01

    Background: rhTRAIL is a therapeutic agent, derived from the TRAIL cytokine, which induces apoptosis in cancer cells by activating the membrane death receptors 4 and 5 (DR4 and DR5). Here, we investigated each receptor's contribution to rhTRAIL sensitivity and rhTRAIL resistance. We assessed whether

  1. Dr. Wernher von Braun and Dr. Ernst Stuhlinger Sign Citizenship Certificates

    Science.gov (United States)

    1955-01-01

    The members of the Peenemuende team and their family members were awarded the United States citizenship on April 14, 1955. Pictured here is Dr. Ernst Stuhlinger (middle) and Dr. Wernher von Braun signing U.S. citizenship certificates. Martin Schilling is at left.

  2. Dræb, dræb, dræb! Nej ... liiiige et øjeblik: De machiavelliske følelser i Game of Thrones

    DEFF Research Database (Denmark)

    Schubart, Rikke

    2013-01-01

    Blogindlæg om Machiavelliske følelser i HBO tv-serien Game of Thrones: "Dræb, dræb, dræb! Nej ... liiiige et øjeblik: De machiavelliske følelser i Game of Thrones"......Blogindlæg om Machiavelliske følelser i HBO tv-serien Game of Thrones: "Dræb, dræb, dræb! Nej ... liiiige et øjeblik: De machiavelliske følelser i Game of Thrones"...

  3. [Dr. Atanasije Puljo: pioneer of Serbian dentistry].

    Science.gov (United States)

    Jovananović, Svetlana; Milovanović, Srdjan; Zagradjanin, Danica; Milovanović, Nebojša; Puzović, Dragana

    2012-01-01

    This paper describes the life and work of Dr. Atanasije Puljo (1878-1944). He was a volunteer in the Balkan wars, an active participant in the First World War; he was the first who noted the importance of team-work of a dentist and a surgeon in the care of jaw and facial injuries. He established primacy in this field, as he came up with this brilliant idea three years before other colleagues. His method of treatment of the upper jaw neglected fractures, called the Balkan method, was recognized worldwide. Dr. Puljo is the pioneer of dental radiology in Serbia, founder of the Odontology Clinic of the Medical Faculty and main supporter of the establishment of the School of Dentistry. Merits of Dr. Atanasije Puljo, medical practitioner with a broad knowledge in different fields, remain within the academic institution that was founded by this pioneer of dentistry in Serbia.

  4. A Tribute to Dr. Willy Lens

    Directory of Open Access Journals (Sweden)

    Maarten Vansteenkiste

    2016-07-01

    Full Text Available Dr. Willy Lens, born on December 10th, 1943, passed away on August 29th, 2014. With his passing, the motivation community has lost a seminal member, a mentor, and a friend. Dr. Lens – a Fellow of the Association for Psychological Science and Founding Fellow of the American Educational Research Association – made fundamental contributions to the study of motivation both through his own work and through his caring and thoughtful mentorship of a large community of scholars. With this tribute, we want to honor Dr. Willy Lens’ significance to psychology and education as well as his positive influence, both personally and professionally, on the lives of dozens of scholars. With his contagious enthusiasm and caring mentorship, Willy was an example for our academic community and with this tribute we express our gratitude for the privilege to have collaborated with him.

  5. Dr. David Syz, State Secretary for Economic Affairs, Switzerland

    CERN Multimedia

    Patrice Loïez

    2003-01-01

    Photo 01: Dr. David Syz (left) with Professor Roger Cashmore, Research Director for Collider Programmes.Photo 02: Dr. David Syz signing the VIP visitors' book, with Prof. Roger Cashmore.Photo 03: Dr. David Syz signing the VIP visitors' book.Photo 04: Handshake between Dr. David Syz (left) and Prof. Roger Cashmore.

  6. Dynamics of seismogenic volcanic extrusion at Mount St Helens in 2004-05

    Science.gov (United States)

    Iverson, R.M.; Dzurisin, D.; Gardner, C.A.; Gerlach, T.M.; LaHusen, R.G.; Lisowski, M.; Major, J.J.; Malone, S.D.; Messerich, J.A.; Moran, S.C.; Pallister, J.S.; Qamar, A.I.; Schilling, S.P.; Vallance, J.W.

    2006-01-01

    The 2004-05 eruption of Mount St Helens exhibited sustained, near-equilibrium behaviour characterized by relatively steady extrusion of a solid dacite plug and nearly periodic shallow earthquakes. Here we present a diverse data set to support our hypothesis that these earthquakes resulted from stick-slip motion along the margins of the plug as it was forced incrementally upwards by ascending, solidifying, gas-poor magma. We formalize this hypothesis with a dynamical model that reveals a strong analogy between behaviour of the magma-plug system and that of a variably damped oscillator. Modelled stick-slip oscillations have properties that help constrain the balance of forces governing the earthquakes and eruption, and they imply that magma pressure never deviated much from the steady equilibrium pressure. We infer that the volcano was probably poised in a near-eruptive equilibrium state long before the onset of the 2004-05 eruption. ??2006 Nature Publishing Group.

  7. Anthropology in a postcolonial colony: Helen I. Safa's contribution to Puerto Rican ethnography.

    Science.gov (United States)

    Duany, Jorge

    2010-01-01

    This article assesses Helen I. Safa's legacy to anthropological thought in Puerto Rico. The first part of the article locates Safa's research on the Island within a long tradition of fieldwork by U.S. scholars since the early twentieth century. More recent research, conducted mostly by Puerto Rican women anthropologists and other social scientists, has expanded upon Safa's insights on gender and work. The second part of the essay analyzes Safa's major empirical work, The Urban Poor of Puerto Rico: A Study in Development and Inequality. Above all, this book helped overcome the theoretical impasse over the culture of poverty that characterized much of urban anthropology during the 1960s and 1970s. The article concludes with an appraisal of the relevance of Safa's work for the ethnography of contemporary Puerto Rico.

  8. Monitoring a restless volcano: The 2004 eruption of Mount St. Helens

    Science.gov (United States)

    Gardner, C.

    2005-01-01

    Although the precise course of volcanic activity is difficult to predict, volcanologists are pretty adept at interpreting volcanic signals from well-monitored volcanoes in order to make short-term forecasts. Various monitoring tools record effects to give us warning before eruptions, changes in eruptive behavior during eruptions, or signals that an eruption is ending. Foremost among these tools is seismic monitoring. The character, size, depth and rate of earthquakes are all important to the interpretation of what is happening belowground. The first inkling of renewed activity at Mount St. Helens began in the early hours of Sept. 23, when a seismic swarm - tens to hundreds of earthquakes over days to a week - began beneath the volcano. This article details the obervations made during the eruptive sequence.

  9. American Self-Fashioning in Helen Foster Snow's My China Years.

    Directory of Open Access Journals (Sweden)

    Constance J. Post

    2013-11-01

    Full Text Available In My China Years: A Memoir, Helen Foster Snow draws upon her Puritan roots in fashioning an American self that affirms the power of an individual exemplary life, the ability to exercise free will amid struggle, an optimism borne of hope, and a way to represent failure and success. Self-fashioning, which Stephen Greenblatt attributes to the rise of an autonomous self in early modern Europe, is shaped by Snow as a distinctly American identity based on a secular Puritanism she found more congenial than the Puritanism of her ancestors on both sides of the Atlantic. The many resemblances noted by Snow between the Chinese Communist Army and seventeenth-century English Puritanism led her to interrogate Puritanism, both in its traditional form and its secularised variant. What emerges in the pages of My China Years is an attempt to fashion an American self by negotiating an old Puritanism with the new by way of a triangulation with China.

  10. Chronology and pyroclastic stratigraphy of the May 18, 1980, eruption of Mount St. Helens, Washington

    Science.gov (United States)

    Criswell, C. William

    1987-01-01

    The eruption of Mount St. Helens on May 18, 1980 can be subdivided into six phases: the paroxysmal phase I, the early Plinian phase II, the early ash flow phase III, the climactic phase IV, the late ash flow phase V, and phase VI, the activity of which consisted of a low-energy ash plume. These phases are correlated with stratigraphic subunits of ash-fall tephra and pyroclastic flow deposits. Sustained vertical discharge of phase II produced evolved dacite with high S/Cl ratios. Ash flow activity of phase III is attributed to decreases in gas content, indicated by reduced S/Cl ratios and increased clast density of the less evolved gray pumice. Climactic events are attributed to vent clearing and exhaustion of the evolved dacite.

  11. The role of mycorrhizal fungi and microsites in primary succession on Mount St. Helens.

    Science.gov (United States)

    Titus, J; Del Moral, R

    1998-03-01

    This study was designed to examine the role of vesicular-arbuscular mycorrhizae (VAM) and microsites on the growth of pioneer species. Flat, rill, near-rock, and dead lupine microsites were created in plots in barren areas of the Pumice Plain of Mount St. Helens. VAM propagules were added to the soil in half of the plots. Six pioneer species were planted into both VAM and non-VAM inoculated microsites. Plants in dead lupine microsites were greater in biomass than those in flat, rill, and near-rock microsites. Significant effects of VAM on plant biomass did not occur. Microsites continue to be important to plant colonization on the Pumice Plain, but VAM do not yet appear to play an important role. This may be due to limited nutrient availability and the facultatively mycotrophic nature of the colonizing plant species. It is unlikely that VAM play an important role in successional processes in newly emplaced nutrient-poor surfaces.

  12. Trophic Interactions during Primary Succession: Herbivores Slow a Plant Reinvasion at Mount St. Helens.

    Science.gov (United States)

    Fagan, William F; Bishop, John G

    2000-02-01

    Lupines (Lupinus lepidus var. lobbii), the earliest plant colonists of primary successional habitats at Mount St. Helens, were expected to strongly affect successional trajectories through facilitative effects. However, their effects remain localized because initially high rates of reinvasive spread were short lived, despite widespread habitat availability. We experimentally tested whether insect herbivores, by reducing plant growth and fecundity at the edge of the expanding lupine population, could curtail the rate of reinvasion and whether those herbivores had comparable impacts in the older, more successionally advanced core region. We found that removing insect herbivores increased both the areal growth of individual lupine plants and the production of new plants in the edge region, thereby accelerating the lupine's intrinsic rate of increase at the front of the lupine reinvasion. We found no such impacts of herbivory in the core region, where low plant quality or a complex of recently arrived natural enemies may hold herbivores in check. In the context of invasion theory, herbivore-mediated decreases in lupine population growth rate in the edge region translate into decreased rates of lupine spread, which we quantify here using diffusion models. In the Mount St. Helens system, decreased rate of lupine reinvasion will result in reductions in rates of soil formation, nitrogen input, and entrapment of seeds and detritus that are likely to postpone or alter trajectories of primary succession. If the type of spatial subtleties in herbivore effects we found here are common, with herbivory focused on the edge of an expanding plant population and suppressed or ineffective in the larger, denser central region (where the plants might be more readily noticed and studied), then insect herbivores may have stronger impacts on the dynamics of primary succession and plant invasions than previously recognized.

  13. Attenuation and scattering tomography of the deep plumbing system of Mount St. Helens

    Science.gov (United States)

    De Siena, Luca; Thomas, Christine; Waite, Greg P.; Moran, Seth C.; Klemme, Stefan

    2014-01-01

    We present a combined 3-D P wave attenuation, 2-D S coda attenuation, and 3-D S coda scattering tomography model of fluid pathways, feeding systems, and sediments below Mount St. Helens (MSH) volcano between depths of 0 and 18 km. High-scattering and high-attenuation shallow anomalies are indicative of magma and fluid-rich zones within and below the volcanic edifice down to 6 km depth, where a high-scattering body outlines the top of deeper aseismic velocity anomalies. Both the volcanic edifice and these structures induce a combination of strong scattering and attenuation on any seismic wavefield, particularly those recorded on the northern and eastern flanks of the volcanic cone. North of the cone between depths of 0 and 10 km, a low-velocity, high-scattering, and high-attenuation north-south trending trough is attributed to thick piles of Tertiary marine sediments within the St. Helens Seismic Zone. A laterally extended 3-D scattering contrast at depths of 10 to 14 km is related to the boundary between upper and lower crust and caused in our interpretation by the large-scale interaction of the Siletz terrane with the Cascade arc crust. This contrast presents a low-scattering, 4–6 km2 “hole” under the northeastern flank of the volcano. We infer that this section represents the main path of magma ascent from depths greater than 6 km at MSH, with a small north-east shift in the lower plumbing system of the volcano. We conclude that combinations of different nonstandard tomographic methods, leading toward full-waveform tomography, represent the future of seismic volcano imaging.

  14. Lidar 2009 - All Returns

    Data.gov (United States)

    Kansas Data Access and Support Center — LIDAR-derived binary (.las) files containing classified points of all returns. We have 3 classifications Unclassified, Ground, Low points. The average Ground Sample...

  15. 2700-IJBCS-Article-Dr Matar Seck

    African Journals Online (AJOL)

    hp

    of Maytenus senegalensis in the management of sickle cell disease. © 2016 International ... En plus de l'anémie, la vaso-occlusion, résultant de la ... crises de douleur, de la fièvre et des douleurs ... vaso-occlusives dans la drépanocytose. Ces.

  16. Dr. Ding Hou 80 years young

    NARCIS (Netherlands)

    Baas, Pieter; Adema, Frits

    2001-01-01

    Eleven October 2001 is the 80th birthday of Dr. Ding Hou, much appreciated Honorary Staff Member of our Nationaal Herbarium Nederland. Time to reflect on the life and career of this modest but highly productive and talented botanist. Ding Hou was born in 1921 in Hsingkan, Kiangsi Province, China.

  17. DR and CR: Recent advances in technology

    International Nuclear Information System (INIS)

    Schaefer-Prokop, C.M.; De Boo, D.W.; Uffmann, M.; Prokop, M.

    2009-01-01

    After some initial reluctance, nowadays transition from conventional analogue-to-digital radiographic technique is realized in the vast majority of institutions. The eventual triumph of digital over conventional technique is related to its undoubted advantages with respect to image quality and improved image handling in the context of a picture archiving and communication system. CR represents the older system, which matured over decades and experienced some important recent improvements with respect to dose efficiency and work-flow efficiency that strengthened its position. It represents a very versatile, economically attractive system that is equally suited for integrated systems as well as for cassette-based imaging at the bedside. DR systems offer superb image quality and realistic options for dose reduction based on their high dose efficiency. While for a long time only integrated systems were on the market suited for a large patient throughput, also mobile DR systems became recently available. While for the next years, it is likely that DR and CR systems will coexist, the long term perspective of CR will depend on further innovations with respect to dose efficiency and signal-to-noise characteristics while for DR economical aspects and broader availability of mobile systems will play a role.

  18. Reminiscences by Dr. I.I. Rabi

    International Nuclear Information System (INIS)

    Rabi, I.I.

    1973-01-01

    Dr. I.I. Rabi, Professor of Physics, Columbia University, Nobel Laureate, adviser to presidents and an original member of the scientific advisory committees both of the United Nations and the IAEA, delivered the following address at the Salazar Atomic Centre, Mexico, in October 1972 he spoke on 'reminiscences from scientific advisory services to governments and international organizations'. (author)

  19. Confessions of a Dr Math tutor

    CSIR Research Space (South Africa)

    Butgereit, L

    2015-06-01

    Full Text Available Mathematics look different on a small 3-inch screen of an inexpensive cell phone when compared to a 3-meter whiteboard in a mathematics classroom. Dr Math uses cell phone or mobile data "chat" technologies to assist primary and secondary school...

  20. Stop words for “Dr Math”

    CSIR Research Space (South Africa)

    Butgereit, L

    2011-05-01

    Full Text Available “Dr Math” is a facility where primary and secondary school pupils can use MXit on their cell phones to get help with their mathematics homework. Pupils use an abbreviated “MXit lingo” leaving out most vowels and substituting various numerals...

  1. Dr. Francis Collins Is New NIH Director

    Science.gov (United States)

    ... Ph.D., a physician and geneticist, is the new Director of the National Institutes of Health (NIH), part of the U.S. Department of Health and Human Services. President Barack Obama nominated Dr. Collins, who served as Director of ...

  2. The great neurosis of Dr. Joseph Gerard.

    Science.gov (United States)

    Lefrère, Jean-Jacques; Rouillon, Frédéric

    2013-01-01

    The Great Neurosis, of Dr. Joseph Gerard, was published in 1889 in Paris. The book, intended for the general public, shows the different varieties of neuroses through picturesque and instructive examples. Its scientific and medical value is poor, but provides us with the various meanings of the word 'neurosis' in the late nineteenth century. Copyright © 2013 S. Karger AG, Basel.

  3. Dr. Andrew Foster: A Literature Review

    Science.gov (United States)

    Runnels, Joel

    2017-01-01

    Often compared to Laurent Clerc, Thomas Gallaudet, and Alexander Graham Bell, Dr. Andrew Foster was a deaf African American who founded 32 schools for the deaf in 13 African nations. The 60th anniversary of his arrival in Liberia and Ghana and the 30th anniversary of his tragic death in a Rwanda airplane accident both occur in 2017. Renewed…

  4. Chamber of Commerce reception for Dr. Lucas

    Science.gov (United States)

    1986-01-01

    Dr. William R. Lucas, Marshall's fourth Center Director (1974-1986), delivers a speech in front of a picture of the lunar landscape with Earth looming in the background while attending a Huntsville Chamber of Commerce reception honoring his achievements as Director of Marshall Space Flight Center (MSFC).

  5. In Memoriam Dr. J. H. Kern

    NARCIS (Netherlands)

    Kalkman, C.

    1974-01-01

    On 29 July 1974 dr. J. H. Kern died at the age of 70. At the occasion of his official retirement from the Rijksherbarium staff (January 1969) Van Steenis and Van Ooststroom gave due recognition to his achievements in tropical botany and to his share in the progress of the knowledge of the Dutch

  6. Underwater Gliders by Dr. Kevin Smith [video

    OpenAIRE

    Naval Postgraduate School Physics

    2015-01-01

    NPS Physics NPS Physics Research Projects Underwater glider research is currently underway in the physics department at the naval postgraduate in Monterey Ca. Dr. Kevin Smith is a specialist in underwater acoustics and sonar systems. He and his team are currently focused on autonomous underwater gliders and developing systems capable of detecting parameters in the ocean and listening for various sources of sound.

  7. Zwischen Aufbegehren und bürgerlicher Rolle: die Lebensgemeinschaft von Helene Lange und Gertrud Bäumer The partnership of Helene Lange und Gertrud Bäumer: a both rebellious and domestic way of life

    Directory of Open Access Journals (Sweden)

    Mechthilde Vahsen

    2001-07-01

    Full Text Available Die Forschungsarbeiten analysieren private weibliche Beziehungsformen und ihre Bedeutung für die erste deutsche Frauenbewegung. Im Zentrum der Betrachtung steht eines der wichtigsten Führungspaare dieser Zeit: Helene Lange und Gertrud Bäumer. Die Dissertation von Göttert liefert einen wichtigen Beitrag zur Netzwerkforschung, Schaser beschäftigt sich in ihrer innovativen Studie mit der Lebensgemeinschaft der beiden Frauen, die sie in die frauenbewegten und politischen Kontexte einordnet.These studies analyse the private aspects of female relationship and their significance for the first wave of the German women’s movement. The focus is on the leading couple at that particular time: Helene Lange and Gertrud Bäumer. The dissertation by Göttert contributes an important piece to the network research, whereas Schaser describes in her innovative study the partnership of the two women, which is strongly related to the feminist and political context.

  8. Petrology of the 2004-2006 Mount St. Helens lava dome -- implications for magmatic plumbing and eruption triggering: Chapter 30 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

    Science.gov (United States)

    Pallister, John S.; Thornber, Carl R.; Cashman, Katharine V.; Clynne, Michael A.; Lowers, Heather; Mandeville, Charles W.; Brownfield, Isabelle K.; Meeker, Gregory P.; Sherrod, David R.; Scott, William E.; Stauffer, Peter H.

    2008-01-01

    Eighteen years after dome-forming eruptions ended in 1986, and with little warning, Mount St. Helens began to erupt again in October 2004. During the ensuing two years, the volcano extruded more than 80×106 m3 of gas-poor, crystal-rich dacite lava. The 2004-6 dacite is remarkably uniform in bulk-rock composition and, at 65 percent SiO2

  9. Helium sources to groundwater in active volcanic terrain, and implications for tritium-helium dating at Mount St. Helens

    Energy Technology Data Exchange (ETDEWEB)

    Gates, John B. [Department of Earth and Atmospheric Sciences, University of Nebraska-Lincoln, 217 Bessey Hall, Lincoln NE 68588 (United States)

    2013-07-01

    Groundwater helium sources and residence times were investigated using groundwater discharging from springs surrounding Mount St. Helens in the Cascades region of the United States. Significant contributions of mantle helium were found in all samples and are attributable to interaction between groundwater and magmatic gases. Bounding calculations for residence times were made on the basis of helium isotope mixing plots and historical tritium data. (authors)

  10. Kas olete mõelnud välismaal õpetamisele? / Edward Kess, Helen Oppar, Sergei Ptšjolkin ... [jt.

    Index Scriptorium Estoniae

    2011-01-01

    Küsimusele vastavad Tallinna 37. keskkooli eesti keele ja kirjanduse õpetaja Edward Kess, Varstu keskkooli loodusainete õpetaja Helen Oppar, Tallinna Mustjõe gümnaasiumi füüsikaõpetaja Sergei Ptšjolkin, Sürgavere põhikooli muusikaõpetaja Helve Tähis, Nõo reaalgümnaasiumi inglise keele õpetaja Tiina Tuuling ning Rahumäe põhikooli matemaatikaõpetaja Kadri Hiob

  11. Dr. von Braun and Dr. Stuhlinger With a Model of the Nuclear-Electric Vehicles

    Science.gov (United States)

    2004-01-01

    In this photo, taken at the Walt Disney Studios in California, Dr. Wernher von Braun and Dr. Ernst Stuhlinger are shown discussing the concepts of nuclear-electric spaceships designed to undertake the mission to the planet Mars. As a part of the Disney 'Tomorrowland' series on the exploration of space, the nuclear-electric vehicles were shown in the last three television films, entitled 'Mars and Beyond,' which first aired in December 1957.

  12. The Reference Return Ratio

    DEFF Research Database (Denmark)

    Nicolaisen, Jeppe; Faber Frandsen, Tove

    2008-01-01

    The paper introduces a new journal impact measure called The Reference Return Ratio (3R). Unlike the traditional Journal Impact Factor (JIF), which is based on calculations of publications and citations, the new measure is based on calculations of bibliographic investments (references) and returns...... (citations). A comparative study of the two measures shows a strong relationship between the 3R and the JIF. Yet, the 3R appears to correct for citation habits, citation dynamics, and composition of document types - problems that typically are raised against the JIF. In addition, contrary to traditional...

  13. The Returns to Entrepreneurship

    DEFF Research Database (Denmark)

    Van Praag, Mirjam; Raknerud, Arvid

    Empirical studies show low pecuniary returns of switching from wage employment to entrepreneurship. We reconsider the pecuniary gains of this switching by employing a two-stage procedure, where the randomness in the timing of inheritance transfers is used as an exclusion restriction to identify...... causal effects. The model is estimated on data covering the whole Norwegian population of individuals matched to the entire population of firms established in the period 2002-2011. The results indicate that the average returns to entrepreneurship are significantly negative for individuals entering...... entrepreneurship through self-employment and modest, but significantly positive, for incorporated startups....

  14. Return to nucleate boiling

    International Nuclear Information System (INIS)

    Shumway, R.W.

    1985-01-01

    This paper presents a collection of TMIN (temperature of return to nucleate boiling) correlations, evaluates them under several conditions, and compares them with a wide range of data. Purpose is to obtain the best one for use in a water reactor safety computer simulator known as TRAC-B. Return to nucleate boiling can occur in a reactor accident at either high or low pressure and flow rates. Most of the correlations yield unrealistic results under some conditions. A new correlation is proposed which overcomes many of the deficiencies

  15. Decommissioning of DR 1, Final report

    International Nuclear Information System (INIS)

    Lauridsen, Kurt

    2006-01-01

    The report describes the decommissioning activities carried out at the 2kW homogeneous reactor DR 1 at Risoe National Laboratory. The decommissioning work took place from summer 2004 until late autumn 2005. The components with the highest activity, the core vessel the recombiner and the piping and valves connected to these, were dismantled first by Danish Decommissioning's own technicians. Demolition of the control rod house and the biological shield as well as the removal of the floor in the reactor hall was carried out by an external demolition contractor. The building was emptied and left for other use. Clearance measurements of the building showed that radionuclide concentrations were everywhere below the clearance limit set by the Danish nuclear regulatory authorities. Furthermore, measurements on the surrounding area showed that there was no contamination that could be attributed to the operation and decommissioning of DR 1. (au)

  16. Decommissioning of DR 1, Final report

    Energy Technology Data Exchange (ETDEWEB)

    Lauridsen, Kurt

    2006-01-15

    The report describes the decommissioning activities carried out at the 2kW homogeneous reactor DR 1 at Risoe National Laboratory. The decommissioning work took place from summer 2004 until late autumn 2005. The components with the highest activity, the core vessel the recombiner and the piping and valves connected to these, were dismantled first by Danish Decommissioning's own technicians. Demolition of the control rod house and the biological shield as well as the removal of the floor in the reactor hall was carried out by an external demolition contractor. The building was emptied and left for other use. Clearance measurements of the building showed that radionuclide concentrations were everywhere below the clearance limit set by the Danish nuclear regulatory authorities. Furthermore, measurements on the surrounding area showed that there was no contamination that could be attributed to the operation and decommissioning of DR 1. (au)

  17. Mount Saint Helens, Washington, USA, SRTM Perspective: Shaded Relief and Colored Height

    Science.gov (United States)

    2004-01-01

    Mount Saint Helens is a prime example of how Earth's topographic form can greatly change even within our lifetimes. The mountain is one of several prominent volcanoes of the Cascade Range that stretches from British Columbia, Canada, southward through Washington, Oregon, and into northern California. Mount Adams (left background) and Mount Hood (right background) are also seen in this view, which was created entirely from elevation data produced by the Shuttle Radar Topography Mission. Prior to 1980, Mount Saint Helens had a shape roughly similar to other Cascade peaks, a tall, bold, irregular conic form that rose to 2950 meters (9677 feet). However, the explosive eruption of May 18, 1980, caused the upper 400 meters (1300 feet) of the mountain to collapse, slide, and spread northward, covering much of the adjacent terrain (lower left), leaving a crater atop the greatly shortened mountain. Subsequent eruptions built a volcanic dome within the crater, and the high rainfall of this area lead to substantial erosion of the poorly consolidated landslide material. Eruptions at Mount Saint Helens subsided in 1986, but renewed volcanic activity here and at other Cascade volcanoes is inevitable. Predicting such eruptions still presents challenges, but migration of magma within these volcanoes often produces distinctive seismic activity and minor but measurable topographic changes that can give warning of a potential eruption. Three visualization methods were combined to produce this image: shading of topographic slopes, color coding of topographic height, and then projection into a perspective view. The shade image was derived by computing topographic slope in the northeast-southwest (left to right) direction, so that northeast slopes appear bright and southwest slopes appear dark. Color coding is directly related to topographic height, with green at the lower elevations, rising through yellow and tan, to white at the highest elevations. The perspective view simulates the

  18. Analysis of DR4 haplotypes in insulin dependent diabetes (IDD)

    International Nuclear Information System (INIS)

    Monos, D.S.; Radka, S.F.; Zmijewski, C.M.; Kamoun, M.

    1986-01-01

    Population studies indicate that HLA-DR4 is implicated in the susceptibility of IDD. However, biochemical characterization of the serologically defined DR4 haplotype from normal individuals revealed five DR4 and three DQW3 molecular forms. Hence, in this study, they investigated the heterogeneity of the DR4 haplotype, using B-lymphoblastoid cell lines (B-LCL) generated from patients with IDD and seropositive for DR4. Class II molecules, metabolically labeled with 35 S-methionine, were immunoprecipitated with monoclonal antibodies specific for DR(L243), DQ(N297), DQW3(IVD12) or DR and DQ(SG465) and analyzed by two-dimensional polyacrylamide gel electrophoresis (2D-PAGE). The isoelectrofocusing (IEF) conditions employed in this study allow representation only of the DR4 haplotype from either DR3/4 or DR4/4 cell lines. The analysis of six different DR4 haplotypes from seven IDD patients, revealed the presence of two DR4 β and two DQW3 β chains. Three of the six DR4 β haplotypes analyzed shared the same DR4 β chain and three others shared a different one. Additionally five of the six haplotypes shared a different one. Additionally five of the six haplotypes shared the same DQW3 β chain and only one was carrying a different one. Different combinations of the two DR4 and two DQW3 β chains constitute three distinct patterns of DR4 haplotypes. These results suggest the prevalence of a DQW3 β chain in the small sample of IDD patients studied. Studies of a large number of patients should clarify whether IDD is associated with unique variants of DR4 or DQW3 β chains

  19. [Homage to Professor Dr. Nicasio Etchepareborda].

    Science.gov (United States)

    1998-11-01

    During a solemn academic act, de Main Classroom of the Facultad de Odontologia de Buenos Aires was named after Prof. Dr. Nicasio Etchepareborda. He has been the first professor at the Escuela de Odontologia and its organizer, after having obtained his Dentistry degree at the Dental School of Paris, in 1882. The new school was founded in 1891, and its activities began the following year.

  20. Environmental Impact of the Helen, Research, and Chicago Mercury Mines on Water, Sediment, and Biota in the Upper Dry Creek Watershed, Lake County, California

    Science.gov (United States)

    Rytuba, James J.; Hothem, Roger L.; May, Jason T.; Kim, Christopher S.; Lawler, David; Goldstein, Daniel; Brussee, Brianne E.

    2009-01-01

    The Helen, Research, and Chicago mercury (Hg) deposits are among the youngest Hg deposits in the Coast Range Hg mineral belt and are located in the southwestern part of the Clear Lake volcanic field in Lake County, California. The mine workings and tailings are located in the headwaters of Dry Creek. The Helen Hg mine is the largest mine in the watershed having produced about 7,600 flasks of Hg. The Chicago and Research Hg mines produced only a small amount of Hg, less than 30 flasks. Waste rock and tailings have eroded from the mines, and mine drainage from the Helen and Research mines contributes Hg-enriched mine wastes to the headwaters of Dry Creek and contaminate the creek further downstream. The mines are located on federal land managed by the U.S. Bureau of Land Management (USBLM). The USBLM requested that the U.S. Geological Survey (USGS) measure and characterize Hg and geochemical constituents in tailings, sediment, water, and biota at the Helen, Research, and Chicago mines and in Dry Creek. This report is made in response to the USBLM request to conduct a Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA - Removal Site Investigation (RSI). The RSI applies to removal of Hg-contaminated mine waste from the Helen, Research, and Chicago mines as a means of reducing Hg transport to Dry Creek. This report summarizes data obtained from field sampling of mine tailings, waste rock, sediment, and water at the Helen, Research, and Chicago mines on April 19, 2001, during a storm event. Further sampling of water, sediment, and biota at the Helen mine area and the upper part of Dry Creek was completed on July 15, 2003, during low-flow conditions. Our results permit a preliminary assessment of the mining sources of Hg and associated chemical constituents that could elevate levels of monomethyl Hg (MMeHg) in the water, sediment, and biota that are impacted by historic mining.

  1. Gaia DR1 documentation Chapter 6: Variability

    Science.gov (United States)

    Eyer, L.; Rimoldini, L.; Guy, L.; Holl, B.; Clementini, G.; Cuypers, J.; Mowlavi, N.; Lecoeur-Taïbi, I.; De Ridder, J.; Charnas, J.; Nienartowicz, K.

    2017-12-01

    This chapter describes the photometric variability processing of the Gaia DR1 data. Coordination Unit 7 is responsible for the variability analysis of over a billion celestial sources. In particular the definition, design, development, validation and provision of a software package for the data processing of photometrically variable objects. Data Processing Centre Geneva (DPCG) responsibilities cover all issues related to the computational part of the CU7 analysis. These span: hardware provisioning, including selection, deployment and optimisation of suitable hardware, choosing and developing software architecture, defining data and scientific workflows as well as operational activities such as configuration management, data import, time series reconstruction, storage and processing handling, visualisation and data export. CU7/DPCG is also responsible for interaction with other DPCs and CUs, software and programming training for the CU7 members, scientific software quality control and management of software and data lifecycle. Details about the specific data treatment steps of the Gaia DR1 data products are found in Eyer et al. (2017) and are not repeated here. The variability content of the Gaia DR1 focusses on a subsample of Cepheids and RR Lyrae stars around the South ecliptic pole, showcasing the performance of the Gaia photometry with respect to variable objects.

  2. Words of gratitude to Dr. Michel Huguet

    International Nuclear Information System (INIS)

    Yoshikawa, Masaji

    2003-01-01

    It is impossible for the Japanese fusion community, in particular for those associated with the ITER Project,to hear about the retirement of Dr. Michel Huguet without a great amount of gratitude, recollections, warm feelings, and the inevitable sadness. He was a first-generation ITER EDA person. Three months after the signing of the ITER EDA Agreement in July 1992, he arrived at the Naka Joint Work Site as Deputy Director of the ITER Central Team and Head of the site and he stayed for more than ten years. The Naka site was for design and technical co-ordination in the areas of magnets, plasma control and heating, plant systems, buildings, etc. Dr. Huguet was considered a highly qualified person to fill the position, since he had been successful as Deputy Director in similar areas in the JET Joint Undertaking. During the ITER EDA he co-ordinated the R and D activities in areas for which the Naka Joint Work Site was responsible. These R and D results permitted the completion of the ITER design in the above areas under his supervision. We thank Dr. Huguet for his achievements and contributions to ITER. He played a crucial role in establishing the convincing scientific and technical basis for ITER implementation. This was only made possible by his broad abilities and his dedication to the cause of fusion in general and ITER in particular

  3. Sustainable Mars Sample Return

    Science.gov (United States)

    Alston, Christie; Hancock, Sean; Laub, Joshua; Perry, Christopher; Ash, Robert

    2011-01-01

    The proposed Mars sample return mission will be completed using natural Martian resources for the majority of its operations. The system uses the following technologies: In-Situ Propellant Production (ISPP), a methane-oxygen propelled Mars Ascent Vehicle (MAV), a carbon dioxide powered hopper, and a hydrogen fueled balloon system (large balloons and small weather balloons). The ISPP system will produce the hydrogen, methane, and oxygen using a Sabatier reactor. a water electrolysis cell, water extracted from the Martian surface, and carbon dioxide extracted from the Martian atmosphere. Indigenous hydrogen will fuel the balloon systems and locally-derived methane and oxygen will fuel the MAV for the return of a 50 kg sample to Earth. The ISPP system will have a production cycle of 800 days and the estimated overall mission length is 1355 days from Earth departure to return to low Earth orbit. Combining these advanced technologies will enable the proposed sample return mission to be executed with reduced initial launch mass and thus be more cost efficient. The successful completion of this mission will serve as the next step in the advancement of Mars exploration technology.

  4. Return of qualified Sudanese

    OpenAIRE

    Lindsay T McMahon

    2007-01-01

    With the signing of the Comprehensive Peace Agreement in January 2005, the new Government of South Sudan began to call for the return of the millions of South Sudanese IDP s and refugees. The International Organization for Migration (IOM) has developed a programme to help them do so.

  5. Return of qualified Sudanese

    Directory of Open Access Journals (Sweden)

    Lindsay T McMahon

    2007-07-01

    Full Text Available With the signing of the Comprehensive Peace Agreement in January 2005, the new Government of South Sudan began to call for the return of the millions of South Sudanese IDP s and refugees. The International Organization for Migration (IOM has developed a programme to help them do so.

  6. Higher Education Endowments Return

    Science.gov (United States)

    Bahlmann, David; Walda, John D.; Sedlacek, Verne O.

    2012-01-01

    A new study of endowments by the National Association of College and University Business Officers (NACUBO) and the Commonfund Institute has brought good news to college and universities: While endowment returns dropped precipitously in fiscal year 2009 as a result of the financial crisis and accompanying slide in equity markets, they climbed to an…

  7. Return to Play

    Science.gov (United States)

    Mangan, Marianne

    2013-01-01

    Call it physical activity, call it games, or call it play. Whatever its name, it's a place we all need to return to. In the physical education, recreation, and dance professions, we need to redesign programs to address the need for and want of play that is inherent in all of us.

  8. Rockslide-debris avalanche of May 18, 1980, Mount St. Helens Volcano, Washington

    Science.gov (United States)

    Glicken, Harry

    1996-01-01

    This report provides a detailed picture of the rockslide-debris avalanche of the May 18, 1980, eruption of Mount St. Helens volcano. It provides a characterization of the deposit, a reinterpretation of the details of the first minutes of the eruption of May 18, and insight into the transport mechanism of the mass movement. Details of the rockslide event, as revealed by eyewitness photographs, are correlated with features of the deposit. The photographs show three slide blocks in the rockslide movement. Slide block I was triggered by a magnitude 5.1 earthquake at 8:32 a.m. Pacific Daylight Time (P.D.T.). An exploding cryptodome burst through slide block II to produce the 'blast surge.' Slide block III consisted of many discrete failures that were carried out in continuing pyroclastic currents generated from the exploding cryptodome. The cryptodome continued to depressurize after slide block III, producing a blast deposit that rests on top of the debris-avalanche deposit. The hummocky 2.5 cubic kilometer debris-avalanche deposit consists of block facies (pieces of the pre-eruption Mount St. Helens transported relatively intact) and matrix facies (a mixture of rocks from the old mountain and cryptodome dacite). Block facies is divided into five lithologic units. Matrix facies was derived from the explosively generated current of slide block III as well as from disaggregation and mixing of debris-avalanche blocks. The mean density of the old cone was measured to be abut 20 percent greater than the mean density of the avalanche deposit. Density in the deposit does not decrease with distance which suggests that debris-avalanche blocks were dilated at the mountain, rather than during transport. Various grain-size parameters that show that clast size converges about a mean with distance suggest mixing during transport. The debris-avalanche flow can be considered a grain flow, where particles -- either debris-avalanche blocks or the clasts within the blocks -- collided and

  9. Treating Cataracts: Dr. Rachel Bishop's Top Tips for Your Eyes

    Science.gov (United States)

    ... please turn JavaScript on. Feature: Treating Cataracts Dr. Rachel Bishop's Top Tips for Your Eyes Past Issues / ... exams, a healthy lifestyle, and eye protection. Dr. Rachel Bishop, chief of consult services at the National ...

  10. Potensi dan Efektivitas Pemungutan Retribusi RSUD Dr. Agoesdjam Ketapang

    OpenAIRE

    B61110063, JAMALUDIN

    2014-01-01

    This study entitled Potential and Effectiveness of retribution collecting in RSUD Dr. Agoesdjam Ketapang which aims to identify and analyze the potential retribution of RSUD Dr . Agoesdjam and also to investigate and analyze the effectiveness of the retribution collecting in RSUD Dr. Agoesdjam . This study uses secondary data , from 2008 to 2012 that were obtained from the Regional Revenue Office of Ketapang and RSUD Dr. Agoesdjam Ketapang . The method of this study is descriptive. To analyz...

  11. HLA-DR expression and disease activity in ulcerative colitis

    DEFF Research Database (Denmark)

    Poulsen, L O; Elling, P; Sørensen, Flemming Brandt

    1986-01-01

    and 3 months later. The rectal epithelial cells were HLA-DR-positive in all patients at the first two examinations. After 3 months five patients had changed to an HLA-DR-negative stage, whereas the other seven patients remained HLA-DR-positive. Closer analyses showed that expression/nonexpression of HLA...

  12. Studi Kelayakan Pengadaan Alat Picture Archiving and Communication System di RSUP Dr. Soeradji Tirtonegoro Klaten

    Directory of Open Access Journals (Sweden)

    Retno Dyah Parwitasari

    2017-01-01

    Full Text Available This study aimed to analyze the appropriateness of the technical aspects, the financial markets and the procurement plan PACS.Penelitian this is a case study located at the General Hospital Center (Dr Soeradji Tirtonegoro Klaten. This study found that investment decisions PACS instrument in terms of the technical aspects and the market has met. From the aspect of finance, investment appraisal results using PP is 2 years 239.4 days, less than a specified useful life, which is 5 years means that investment is worth it. The results of the NPV method is Rp.1.875.508.315,25, meaning that the investment is worth it. The results of the method IRR is 27%, greater than the specified rate of return of 6.5%, meaning that the investment is worth it. Thus we can conclude the investment project in the PACS instrument dr. Soeradji Tirtonegoro Klaten feasible.

  13. Dr. Yu Wang, Director, Natural Science Division, National Science Council, Taiwan

    CERN Document Server

    Patrice Loïez

    2001-01-01

    Photo 01: L. to r.: Dr. Philippe Bloch, CERN CMS ECAL Deputy Project Manager, Dr. Yu Wang, Dr. Etiennette Auffray, CERN, responsible of the CERN ECAL Regional Centre. Photo 02: L. to r.: Dr. Yu Wang, Dr. Philippe Bloch, Dr. Apollo GO, National Central University, Taiwan, Dr. Etiennette Auffray.

  14. Conduit degassing and thermal controls on eruption styles at Mount St. Helens

    Science.gov (United States)

    Schneider, Andrew; Rempel, Alan W.; Cashman, Katharine V.

    2012-12-01

    The explosivity of silicic eruptions depends on the interplay between magma rheology, exsolution kinetics, and degassing. Magma degassing is governed by the competing effects of vertical transport within the conduit and the lateral flux of gas out of the conduit (Diller et al., 2006; Jaupart and Allegre, 1991). We combine a simplified treatment of these degassing processes with thermodynamic modeling to examine the conditions present at Mount St. Helens during the spine extruding eruption from 2004 to 2008. We find that two parameters are primarily responsible for controlling the eruptive style: the magma chamber temperature, and a dimensionless parameter that gauges the efficiency of lateral degassing. Together, these parameters determine whether and where magma can solidify at depth to form a dense solid plug that is gradually extruded as a volcanic spine. We show that the small (50 oC) decrease in magma chamber temperature between eruptive activity in the 1980s and that of 2004-2008, combined with a modest increase in degassing efficiency associated with lower volumetric flux, can explain the observed change in erupted material from viscous lava flows to solidified spines. More generally, we suggest that similar threshold behavior may explain observed abrupt transitions in effusive eruptive styles at other intermediate composition volcanoes. Finally, we extrapolate our results to suggest that the increase in degassing efficiency accompanying decreasing magma supply rates may have caused the transition from explosive to effusive activity in late 1980.

  15. Reading, Trauma and Literary Caregiving 1914-1918: Helen Mary Gaskell and the War Library.

    Science.gov (United States)

    Haslam, Sara

    2018-03-28

    This article is about the relationship between reading, trauma and responsive literary caregiving in Britain during the First World War. Its analysis of two little-known documents describing the history of the War Library, begun by Helen Mary Gaskell in 1914, exposes a gap in the scholarship of war-time reading; generates a new narrative of "how," "when," and "why" books went to war; and foregrounds gender in its analysis of the historiography. The Library of Congress's T. W. Koch discovered Gaskell's ground-breaking work in 1917 and reported its successes to the American Library Association. The British Times also covered Gaskell's library, yet researchers working on reading during the war have routinely neglected her distinct model and method, skewing the research base on war-time reading and its association with trauma and caregiving. In the article's second half, a literary case study of a popular war novel demonstrates the extent of the "bitter cry for books." The success of Gaskell's intervention is examined alongside H. G. Wells's representation of textual healing. Reading is shown to offer sick, traumatized and recovering combatants emotional and psychological caregiving in ways that she could not always have predicted and that are not visible in the literary/historical record.

  16. Inpatient management of borderline personality disorder at Helen Joseph Hospital, Johannesburg

    Directory of Open Access Journals (Sweden)

    Laila Paruk

    2016-06-01

    Full Text Available Objective: The aim of this report was to establish a profile of patients with borderline personality disorder (BPD admitted to the acute inpatient psychiatric assessment unit at the Helen Joseph Hospital, in Johannesburg, over the course of 1 year. Methods: A retrospective record review was conducted to investigate the prevalence, demographics, reasons for admission, treatment, length of stay and follow-up of a group of inpatients during 2010 with a diagnosis of BPD, based on DSM-IV-TR diagnostic criteria, allocated on discharge. Results: Considering evidence retrospectively, the quality of the BPD diagnosis allocated appeared adequate. Statistical analysis revealed findings mainly in keeping with other reports, for example, that patients with BPD are above-average users of resources who make significantly more use of emergency services and that they generally do not adhere well to their scheduled outpatient follow-up arrangements. The longer average length of inpatient stay of this group with BPD, however, exceeded the typically brief period generally recommended for acute inpatient containment and emergency intervention. Conclusion: Implementation of targeted prevention and early intervention strategies, based on systematised programmes such as dialectical behavioural therapy and mentalisation based therapy, may be useful in addressing these problems experienced with integrating the in- and outpatient management of BPD. Keywords: Borderline personality; inpatient; acute

  17. O desejo na Grécia Helenística

    Directory of Open Access Journals (Sweden)

    Zeferino Rocha

    Full Text Available O presente trabalho é a terceira e última parte de uma pesquisa sobre “O desejo na Grécia Antiga”. Na primeira parte, reunimos as manifestações do desejo nos poemas épicos, líricos e trágicos, bem como nas máximas dos sete sábios e na doutrina dos filósofos pré-socráticos da Grécia Arcaica. Na segunda, apresentamos o essencial da sistematização teórica que, na Grécia Clássica, Sócrates, Platão e Aristóteles deram a essas primeiras manifestações do desejo. Nesta última parte, depois de lembrar a origem e as características da cultura helenística, vamos ver o que os epicuristas e os estóicos, no contexto de suas respectivas filosofias, disseram sobre o desejo no Jardim de Epicuro e no Pórtico Antigo de Zenão e Crísipo.

  18. Temporal changes in stress preceding the 2004-2008 eruption of Mount St. Helens, Washington

    Science.gov (United States)

    Lehto, H.L.; Roman, D.C.; Moran, S.C.

    2010-01-01

    The 2004-2008 eruption of Mount St. Helens (MSH), Washington, was preceded by a swarm of shallow volcano-tectonic earthquakes (VTs) that began on September 23, 2004. We calculated locations and fault-plane solutions (FPS) for shallow VTs recorded during a background period (January 1999 to July 2004) and during the early vent-clearing phase (September 23 to 29, 2004) of the 2004-2008 eruption. FPS show normal and strike-slip faulting during the background period and on September 23; strike-slip and reverse faulting on September 24; and a mixture of strike-slip, reverse, and normal faulting on September 25-29. The orientation of ??1 beneath MSH, as estimated from stress tensor inversions, was found to be sub-horizontal for all periods and oriented NE-SW during the background period, NW-SE on September 24, and NE-SW on September 25-29. We suggest that the ephemeral ~90?? change in ??1 orientation was due to intrusion and inflation of a NE-SW-oriented dike in the shallow crust prior to the eruption onset. ?? 2010 Elsevier B.V.

  19. Ambient noise tomography across Mount St. Helens using a dense seismic array

    KAUST Repository

    Wang, Yadong

    2017-05-08

    We investigated upper crustal structure with data from a dense seismic array deployed around Mount St. Helens for 2 weeks in the summer of 2014. Interstation cross correlations of ambient seismic noise data from the array were obtained, and clear fundamental mode Rayleigh waves were observed between 2.5 and 5 s periods. In addition, higher-mode signals were observed around 2 s period. Frequency-time analysis was applied to measure fundamental mode Rayleigh wave phase velocities, which were used to invert for 2-D phase velocity maps. An azimuth-dependent traveltime correction was implemented to mitigate potential biases introduced due to an inhomogeneous noise source distribution. Reliable phase velocity maps were only obtained between 3 and 4 s periods due to limitations imposed by the array aperture and higher-mode contamination. The phase velocity tomography results, which are sensitive to structure shallower than 6 km depth, reveal an ~10–15% low-velocity anomaly centered beneath the volcanic edifice and peripheral high-velocity anomalies that likely correspond to cooled igneous intrusions. We suggest that the low-velocity anomaly reflects the high-porosity mixture of lava and ash deposits near the surface of the edifice, a highly fractured magmatic conduit and hydrothermal system beneath the volcano, and possibly a small contribution from silicate melt.

  20. Four-year prospective study of the respiratory effects of volcanic ash from Mt. St. Helens

    International Nuclear Information System (INIS)

    Buist, A.S.; Vollmer, W.M.; Johnson, L.R.; Bernstein, R.S.; McCamant, L.E.

    1986-01-01

    This report describes the 4-yr follow-up of 712 loggers exposed over an extended period to varying levels of fresh volcanic ash from the 1980 eruptions of Mt. St. Helens. Concerns related to the irritant effect the ash might have on the airways and also to its fibrogenic potential if exposures were intense and continued over many years. Our subjects were divided into 3 groups: high, low, and no exposure. Baseline testing was begun in June 1980, 1 month after the major eruption, and follow-up testing continued on an annual basis through 1984; 88% of the loggers have been tested at least 3 times. Analysis of lung function data showed that a significant, exposure-related decline in FEV1 occurred during the first year after the eruption. The decline was short-lived, however, and by 1984 the differences between exposure groups were no longer significant. Self-reported symptoms of cough, phlegm, and wheeze showed a similar pattern. No ash-related changes were seen in chest roentgenograms taken in 1980 and in 1984. Our findings are consistent with the hypothesis that the inhaled ash caused mucus hypersecretion and/or airway inflammation that reversed when the exposure levels decreased. The ash levels to which the loggers were exposed were low compared with permissible occupational levels for nuisance dusts, but generally higher than the total suspended particulate levels permissible in ambient air

  1. Erosion by flowing lava: Geochemical evidence in the Cave Basalt, Mount St. Helens, Washington

    Science.gov (United States)

    Williams, D.A.; Kadel, S.D.; Greeley, R.; Lesher, C.M.; Clynne, M.A.

    2004-01-01

    We sampled basaltic lava flows and underlying dacitic tuff deposits in or near lava tubes of the Cave Basalt, Mount St. Helens, Washington to determine whether the Cave Basalt lavas contain geochemical evidence of substrate contamination by lava erosion. The samples were analyzed using a combination of wavelength-dispersive X-ray fluorescence spectrometry and inductively-coupled plasma mass spectrometry. The results indicate that the oldest, outer lava tube linings in direct contact with the dacitic substrate are contaminated, whereas the younger, inner lava tube linings are uncontaminated and apparently either more evolved or enriched in residual liquid. The most heavily contaminated lavas occur closer to the vent and in steeper parts of the tube system, and the amount of contamination decreases with increasing distance downstream. These results suggest that erosion by lava and contamination were limited to only the initially emplaced flows and that erosion was localized and enhanced by vigorous laminar flow over steeper slopes. After cooling, the initial Cave Basalt lava flows formed an insulating lining within the tubes that prevented further erosion by later flows. This interpretation is consistent with models of lava erosion that predict higher erosion rates closer to sources and over steeper slopes. A greater abundance of xenoliths and xenocrysts relative to xenomelts in hand samples indicates that mechanical erosion rather than thermal erosion was the dominant erosional process in the Cave Basalt, but further sampling and petrographic analyses must be performed to verify this hypothesis. ?? Springer-Verlag 2003.

  2. Product return management

    DEFF Research Database (Denmark)

    Shaharudin, Mohd Rizaimy; Govindan, Kannan; Zailani, Suhaiza

    2017-01-01

    The aim of this study is to examine the extent to which product returns motivate manufacturing firms to adopt closed-loop supply chain activities that influence the effectiveness of reverse supply chains. The hypotheses have been tested using data from a sample of 150 environmental management...... system ISO 14001 certified manufacturing firms in Malaysia through the census sampling approach. The results of the empirical test using LISREL Version 8.70 for the structural equation modeling support the fundamental explanation of the influence of the institutional forces towards the adoption of closed...... eventually impacts the firm's effectiveness in the reverse supply chain. The findings also help managers to understand the factors that can improve the outcome of the adoption of closed-loop supply chain activities by intensifying the extent of involvement in product returns, which provides a valuable...

  3. Description of Work for Borehole Sampling at the 116-DR-1and 116-DR-2 Trenches

    International Nuclear Information System (INIS)

    Bergstrom, K. A.

    1999-01-01

    This description of work (DOW) details the sampling and analysis activities for characterizing the deep zone soils below the 116-DR-1and 116-DR-2 trenches, which are located in the 100-DR- 1 Operable Unit (OU), and will serve as a guide for the personnel performing the work. The ''deep zone'' refers to the portion of the vadose zone between the bottom of the waste site and the water table. The scope of work includes drilling a borehole (B8786), sampling vadose zone and upper saturated zone soils at ∼ 1-m intervals, collecting a water sample below the top of the water table, and analyzing the samples for all contaminants of concern (COCs). Specific procedures for defined tasks are covered under the Bechtel Hanford, Inc. (BHI)manual, BHI-EE-01, Environmental Investigations Procedures

  4. High-resolution digital elevation model of lower Cowlitz and Toutle Rivers, adjacent to Mount St. Helens, Washington, based on an airborne lidar survey of October 2007

    Science.gov (United States)

    Mosbrucker, Adam

    2015-01-01

    The lateral blast, debris avalanche, and lahars of the May 18th, 1980, eruption of Mount St. Helens, Washington, dramatically altered the surrounding landscape. Lava domes were extruded during the subsequent eruptive periods of 1980–1986 and 2004–2008. More than three decades after the emplacement of the 1980 debris avalanche, high sediment production persists in the Toutle River basin, which drains the northern and western flanks of the volcano. Because this sediment increases the risk of flooding to downstream communities on the Toutle and lower Cowlitz Rivers, the U.S. Army Corps of Engineers (USACE), under the direction of Congress to maintain an authorized level of flood protection, continues to monitor and mitigate excess sediment in North and South Fork Toutle River basins to help reduce this risk and to prevent sediment from clogging the shipping channel of the Columbia River. From October 22–27, 2007, Watershed Sciences, Inc., under contract to USACE, collected high-precision airborne lidar (light detection and ranging) data that cover 273 square kilometers (105 square miles) of lower Cowlitz and Toutle River tributaries from the Columbia River at Kelso, Washington, to upper North Fork Toutle River (below the volcano's edifice), including lower South Fork Toutle River. These data provide a digital dataset of the ground surface, including beneath forest cover. Such remotely sensed data can be used to develop sediment budgets and models of sediment erosion, transport, and deposition. The U.S. Geological Survey (USGS) used these lidar data to develop digital elevation models (DEMs) of the study area. DEMs are fundamental to monitoring natural hazards and studying volcanic landforms, fluvial and glacial geomorphology, and surface geology. Watershed Sciences, Inc., provided files in the LASer (LAS) format containing laser returns that had been filtered, classified, and georeferenced. The USGS produced a hydro-flattened DEM from ground-classified points at

  5. Dr. David Syz, State Secretary for Economic Affairs, Switzerland

    CERN Multimedia

    Maximilien Brice

    2003-01-01

    Dr. David Syz, State Secretary for Economic Affairs, Switzerland, toured the assembly hall of the ATLAS experiment on a recent visit to CERN.Photos 01, 02: Dr. Peter Jenni, spokesperson for the ATLAS experiment (second from left), explains to Dr. David Syz (fourth from left) and accompanying visitors the process of integration of a 26-metre-long coil of the barrel toroid magnet system into its coil casing.Photo 03: Dr. Peter Jenni (extreme right) with Dr. David Syz (front row, fourth from right) behind a stack of 26-metre-long 'racetrack' coils awaiting integration into their coil casings.

  6. Prof. DR. F. C. Eloff - An appreciation

    Directory of Open Access Journals (Sweden)

    G de Graaff

    1984-12-01

    Full Text Available I have been requested to write an appreciation of the man to whom these proceedings of a symposium on the Kalahari Ecosystem are dedicated @ Prof. Dr. F. C. Eloff, or Fritz as he is popularly referred to. I undertook the task with some trepidation and the only claim to the honour to write this article may be the fact that I have known Professor Eloff since 1949 when I was a green-shanked first year veterinary student at the University of Pretoria where he lectured in zoology to the new students.

  7. HLA-DR typing by radioimmunoassay

    International Nuclear Information System (INIS)

    Tosi, R.; Tanigaki, N.; Centis, D.; Rossi, P.L.; Alfano, G.; Ferrara, G.B.; Pressman, D.

    1980-01-01

    A radioimmunoassay procedure is described by which peripheral blood lymphocytes can be typed for HLA-DR specificities. The major advantages of this method are the following: simple and reproducible procedure, no need for B lymphocyte separation, no need for optimal viability, and no need for preabsorption of antisera with platelets. This method will find an application in the genetic and biochemical analysis of the HLA complex, and in the clinical tests of Ia antigens for diagnostic or prognostic purposes and in retrospective transplant studies

  8. HLA-DR expression and disease activity in ulcerative colitis

    DEFF Research Database (Denmark)

    Poulsen, L O; Elling, P; Sørensen, Flemming Brandt

    1986-01-01

    In 12 patients with active ulcerative colitis (UC) the rectal epithelial cells were analyzed for HLA-DR antigens by an immunohistochemical technique. The clinical, rectoscopic, and histologic stages were also determined. The investigations were carried out at the beginning of the study and 2 weeks...... and 3 months later. The rectal epithelial cells were HLA-DR-positive in all patients at the first two examinations. After 3 months five patients had changed to an HLA-DR-negative stage, whereas the other seven patients remained HLA-DR-positive. Closer analyses showed that expression/nonexpression of HLA-DR...... antigens on rectal epithelial cells of patients with UC could not be predicted from the clinical, rectoscopic, or histologic findings. HLA-DR expression is normally restricted to immunocompetent cells. The presence of HLA-DR antigens on epithelial cells may be a consequence of immunological reactions...

  9. Polyphony and counterpoint: Mechanisms of seduction in the diaries of Helen Hessel and Henri Pierre Roché

    Directory of Open Access Journals (Sweden)

    Catherine du Toit

    2015-06-01

    Polifonie en kontrapunt: Meganismes van verleiding in die dagboeke van Helen Hessel en Henri Pierre Roché. Henri Pierre Roché (1879–1959, outeur van Jules et Jim, word beskryf as ‘n sosiale koppelaar, ‘n model-liefhebber van alles en nog wat, ‘n versamelaar van vroue en kuns en een van die mees produktiewe dagboekskrywers en aktiewe minnaars in die opgetekende geskiedenis. Roché het ‘n reeks sketse oor Don Juan gepubliseer en was geboei deur die figuur van die verleier. In sy twintigs beplan hy om sy lewe te wy aan die skepping van ‘n œuvre wat die morele, intellektuele, sosiale en seksuele verhoudings tussen mans en vrouens sou ondersoek. Ter bereiking van hierdie doel, rig hy sy lewe in as laboratorium waarin werklike ondervindinge dien as hoofbron van inligting. Sy dagboek strek oor sestig jaar en is ryk aan verhale van verleiding. Desnieteenstaande bly die mees intense en boeiende intrige van verleiding en verraad steeds sy verhouding met Helen Hessel. Aan die begin van hulle verhouding, stel Roché voor dat sy ook ‘n dagboek hou van hulle hartstogtelike liefde. Helen Hessel se dagboek, geskryf in Frans, Duits en Engels, reflekteer die drama van verleiding en funksioneer op verskillende vlakke: realisties, visionêr, ten volle geabsorbeer in haar eie gedagtes en emosies en tóg krities jeens haarself en ander. ‘n Vergelyking van die twee dagboeke skep ‘n fassinerende, digte tekstuur wat die binnewerkings blootlê van verleiding in aksie. Die kontrapunt geskep deur hierdie twee interafhanklike stemme word nóg meer kompleks namate ‘n mens bewus word van die intertekstuele verwysings wat bydra tot die ontluikende polifonie van geskrewe liefde en lewe.

  10. Database for geologic maps of pyroclastic-flow and related deposits of the 1980 eruptions of Mount St. Helens, Washington

    Science.gov (United States)

    Furze, Andrew J.; Bard, Joseph A.; Robinson, Joel; Ramsey, David W.; Kuntz, Mel A.; Rowley, Peter D.; MacLeod, Norman S.

    2017-10-31

    This publication releases digital versions of the geologic maps in U.S. Geological Survey Miscellaneous Investigations Map 1950 (USGS I-1950), “Geologic maps of pyroclastic-flow and related deposits of the 1980 eruptions of Mount St. Helens, Washington” (Kuntz, Rowley, and MacLeod, 1990) (https://pubs.er.usgs.gov/publication/i1950). The 1980 Mount St. Helens eruptions on May 18, May 25, June 12, July 22, August 7, and October 16–18 produced pyroclastic-flow and related deposits. The distribution and morphology of these deposits, as determined from extensive field studies and examination of vertical aerial photographs, are shown on four maps in I-1950 (maps A–D) on two map sheets. Map A shows the May 18, May 25, and June 12 deposits; map B shows the July 22 deposits; map C shows the August 7 deposits; and map D shows the October 16–18 deposits. No digital geospatial versions of the geologic data were made available at the time of publication of the original maps. This data release consists of attributed vector features, data tables, and the cropped and georeferenced scans from which the features were digitized, in order to enable visualization and analysis of these data in GIS software. This data release enables users to digitally re-create the maps and description of map units of USGS I-1950; map sheet 1 includes text sections (Introduction, Physiography of Mount St. Helens at the time of the 1980 eruptions, Processes of the 1980 eruptions, Deposits of the 1980 eruptions, Limitations of the maps, Preparation of the maps, and References cited) and associated tables and figures that are not included in this data release.

  11. GeoGirls: A Geology and Geophysics Field Camp for Middle School Girls at Mount St. Helens

    Science.gov (United States)

    Samson, C.; Allstadt, K.; Melander, S.; Groskopf, A.; Driedger, C. L.; Westby, E.

    2015-12-01

    The August 2015 GeoGirls program was a project designed to inspire girls to gain an appreciation and enthusiasm for Earth sciences using Mount St. Helens as an outdoor volcanic laboratory. Occupations in the field of science and engineering tend to be held by more males than females. One way to address this is to introduce girls to possible opportunities within the geosciences and encourage them to learn more about the dynamic environment in which they live. In 2015, the GeoGirls program sought to accomplish this goal through organizing a five day-long field camp for twenty middle school-aged girls, along with four high school-aged mentors and two local teachers. This group explored Mount St. Helens guided by female scientists from the USGS Cascade Volcano Observatory (CVO), the Mount St. Helens Institute (MSHI), UNAVCO, Boise State, Georgia Tech, University of Washington and Oregon State University. To introduce participants to techniques used by volcanologists, the girls participated in hands-on experiments and research projects focusing on seismology, GPS, terrestrial lidar, photogrammetry, water and tephra. Participants also learned to collect samples, analyze data and use microscopes. Through this experience, participants acquired strategies for conducting research by developing hypotheses, making observations, thinking critically and sharing their findings with others. The success of the GeoGirls program was evaluated by participant and parent survey questionnaires, which allowed assessment of overall enthusiasm and interest in pursuing careers in the geosciences. The program was free to participants and was run jointly by MSHI and CVO and funded by NSF, the American Association of University Women, the Association for Women Geoscientists, the Association of Environmental & Engineering Geologists and private donors. The program will run again in the summer of 2016.

  12. Amphibole trace elements as indicators of magmatic processes at Mount St. Helens

    Science.gov (United States)

    Hampel, T. R.; Rowe, M. C.; Kent, A.; Thornber, C. R.

    2011-12-01

    Amphibole has the capability of incorporating a wide variety of trace elements resulting from a range of magmatic processes. Prior studies have used trace elements such as Li and Cu in amphibole to investigate volatile mobility associated with magma ascent regarding the 2004-2008 eruption of Mount St. Helens (Rowe et al. 2008). In order to investigate magmatic processes associated with the 2004-2008 eruption of Mount St. Helens we have measured a range of fluid-mobile trace elements in conjunction with major element compositions of amphibole phenocrysts in dacite lava. Major elements and volatiles (Cl, F) were measured by electron microprobe analysis at Washington State University and trace elements (Li, Sc, Co, Cu, Zn, Sr, Y, Zr, Mo, Ag, Sn, Sb, Te, Ba, Ce, W, and Pb) were analyzed by laser ablation (LA)-ICP-MS at Oregon State University. Amphibole crystallization temperatures were calculated after Ridolfi et al. (2010). Core to rim transects were measured by electron microprobe to evaluate volatile concentrations and temperature profiles across individual phenocrysts. Core temperatures from 17 days and 226 days post eruption are consistently hotter than the rim temperatures 997 to 881 degrees C, respectively. Amphiboles from the end of the eruption (811 days post eruption) appear to be more complex, with phenocrysts having both increasing and decreasing temperatures toward the rims. The overall calculated temperature range of the amphiboles at the end of the eruption is 1022 to 919 degrees C. There is much diversity in the concentrations of Li and Cu within the phenocrysts in both the samples and throughout the eruption. Concentrations steadily increase in the beginning of the eruption then drop dramatically toward the middle, slowly increase toward the end eruption. Overall concentrations of Sr, Sb, Co, Sn, Mo, Ba, Ce, Sc, and Y do not change over the course of the eruption but do vary sample to sample. Preliminary data for Zn, Sb, Ag, and W suggest the

  13. Faulting within the Mount St. Helens conduit and implications for volcanic earthquakes

    Science.gov (United States)

    Pallister, John S.; Cashman, Katharine V.; Hagstrum, Jonathan T.; Beeler, Nicholas M.; Moran, Seth C.; Denlinger, Roger P.

    2013-01-01

    The 2004–2008 eruption of Mount St. Helens produced seven dacite spines mantled by cataclastic fault rocks, comprising an outer fault core and an inner damage zone. These fault rocks provide remarkable insights into the mechanical processes that accompany extrusion of degassed magma, insights that are useful in forecasting dome-forming eruptions. The outermost part of the fault core consists of finely comminuted fault gouge that is host to 1- to 3-mm-thick layers of extremely fine-grained slickenside-bearing ultracataclasite. Interior to the fault core, there is an ∼2-m-thick damage zone composed of cataclastic breccia and sheared dacite, and interior to the damage zone, there is massive to flow-banded dacite lava of the spine interior. Structures and microtextures indicate entirely brittle deformation, including rock breakage, tensional dilation, shearing, grain flow, and microfaulting, as well as gas and fluid migration through intergranular pores and fractures in the damage zone. Slickenside lineations and consistent orientations of Riedel shears indicate upward shear of the extruding spines against adjacent conduit wall rocks.Paleomagnetic directions, demagnetization paths, oxide mineralogy, and petrology indicate that cataclasis took place within dacite in a solidified steeply dipping volcanic conduit at temperatures above 500 °C. Low water content of matrix glass is consistent with brittle behavior at these relatively high temperatures, and the presence of tridymite indicates solidification depths of <1 km. Cataclasis was coincident with the eruption’s seismogenic zone at <1.5 km.More than a million small and low-frequency “drumbeat” earthquakes with coda magnitudes (Md) <2.0 and frequencies <5 Hz occurred during the 2004–2008 eruption. Our field data provide a means with which to estimate slip-patch dimensions for shear planes and to compare these with estimates of slip patches based on seismic moments and shear moduli for dacite rock and

  14. Mars Sample Return Architecture Overview

    Science.gov (United States)

    Edwards, C. D.; Vijendran, S.

    2018-04-01

    NASA and ESA are exploring potential concepts for a Sample Retrieval Lander and Earth Return Orbiter that could return samples planned to be collected and cached by the Mars 2020 rover mission. We provide an overview of the Mars Sample Return architecture.

  15. Revolution and Exploration: the English Translations of Rousseau and Humboldt by Helen Maria Williams

    Directory of Open Access Journals (Sweden)

    Paula Yurss Lasanta

    2017-12-01

    Full Text Available British author Helen Maria Williams (1759-1827 was a well-known figure in the eighteenth century literary circles, whose work was praised by Elizabeth Montagu, Samuel Johnson, Dorothy and William Wordsworth, Mary Wollstonecraft, Hester Piozzi or Alexander von Humboldt.  In her early poems  Edwin and Eltruda (1782, An Ode to the Peace (1783 and Peru (1784, Williams starts to reveal her political tendencies by appealing to strong empathic feelings as a key to social and political transformation. As a result of her interest in politics, she travelled to France in 1790 and published her most acclaimed work Letters from France (1790. However, the rest of her production has received little critical attention by modern scholars, who have overlooked her involvement in translation. Williams’ only extant novel, Julia (1790 is in fact a creative translation of Rousseau’s Julie ou La Nouvelle Héloïse (1761, in which Williams includes poems that evidence her interest in revolutionary politics. Four years later, she translated Bernardin de Saint Pierre’s Paul et Virginie, while she was imprisoned in Paris. While translating novels was regarded as a respectable exercise for women writers, Williams challenges gender assumptions by translating Researches (1814 and the seven volumes of Personal Narrative (1814-1829, which had been produced by one of the most influential eighteenth century scientists, Alexander von Humboldt. This article interrogates how Williams makes use of translation to access areas of knowledge traditionally restricted to men, such as philosophy, politics and science. For this purpose, I will focus on her translations of the work of two leading intellectual figures of the eighteenth century,  Rousseau and Von Humboldt.

  16. Airborne thermal infrared imaging of the 2004-2005 eruption of Mount St. Helens

    Science.gov (United States)

    Schneider, D. J.; Vallance, J. W.; Logan, M.; Wessels, R.; Ramsey, M.

    2005-12-01

    A helicopter-mounted forward-looking infrared imaging radiometer (FLIR) documented the explosive and effusive activity at Mount St. Helens during the 2004-2005 eruption. A gyrostabilzed gimbal controlled by a crew member houses the FLIR radiometer and an optical video camera attached at the lower front of the helicopter. Since October 1, 2004 the system has provided an unprecedented data set of thermal and video dome-growth observations. Flights were conducted as frequently as twice daily during the initial month of the eruption (when changes in the crater and dome occurred rapidly), and have been continued on a tri-weekly basis during the period of sustained dome growth. As with any new technology, the routine use of FLIR images to aid in volcano monitoring has been a learning experience in terms of observation strategy and data interpretation. Some of the unique information that has been derived from these data to date include: 1) Rapid identification of the phreatic nature of the early explosive phase; 2) Observation of faulting and associated heat flow during times of large scale deformation; 3) Venting of hot gas through a short lived crater lake, indicative of a shallow magma source; 4) Increased heat flow of the crater floor prior to the initial dome extrusion; 5) Confirmation of new magma reaching the surface; 6) Identification of the source of active lava extrusion, dome collapse, and block and ash flows. Temperatures vary from ambient, in areas insulated by fault gouge and talus produced during extrusion, to as high as 500-740 degrees C in regions of active extrusion, collapse, and fracturing. This temperature variation needs to be accounted for in the retrieval of eruption parameters using satellite-based techniques as such features are sub-pixel size in satellite images.

  17. Enrico Fermi Awards Ceremony for Dr. Mildred S. Dresselhaus and Dr. Burton Richter, May 2012 (Presentations, including remarks by Energy Secretary, Dr. Steven Chu)

    International Nuclear Information System (INIS)

    Chu, Steven

    2012-01-01

    The Fermi Award is a Presidential award and is one of the oldest and most prestigious science and technology honors bestowed by the U.S. Government. On May 7, 2012 it was conferred upon two exceptional scientists: Dr. Mildred Dresselhaus, 'for her scientific leadership, her major contributions to science and energy policy, her selfless work in science education and the advancement of diversity in the scientific workplace, and her highly original and impactful research,' and Dr. Burton Richter, 'for the breadth of his influence in the multiple disciplines of accelerator physics and particle physics, his profound scientific discoveries, his visionary leadership as SLAC Director, his leadership of science, and his notable contributions in energy and public policy.' Dr. John Holder, Director of the White House Office of Science and Technology Policy, opened the ceremony, and Dr. Bill Brinkman, Director of DOE's Office of Science introduced the main speaker, Dr. Steven Chu, U.S. Energy Secretary.

  18. GENESI-DR Portal: a scientific gateway to distributed repositories

    Science.gov (United States)

    Goncalves, Pedro; Brito, Fabrice; D'Andria, Fabio; Cossu, Roberto; Fusco, Luigi

    2010-05-01

    information as a loosely connected federation of nodes. This network had however to be resilient to node failures and able to scale with the growing addition of new information about data and services. The GENESI-DR scientific portal is still evolving as the project deploys the different components amongst the different partners, but the aim is to provide the connection to information, establish rights, access it and in some cases apply algorithms using the computer power available on the infrastructure with simple interfaces. As information is discovered in the network, it can be further exploited, filtered or enhanced according to the user goals. To implement this vision two specialized graphical interfaces were designed on the portal. The first, concentrates on the text-based search of information, while the second is a command and control of submission and order status on a distributed processing environment. The text search uses natural language features that extract the spatial temporal components from the user query. This is then propagated to the nodes by mapping them to OpenSearch extensions, and then returned to the user as an aggregated list of the resources. These can either be access points to dataset series or services that can be further analysed and processed. At this stage, the user is presented with dedicated interfaces that correspond to context of the action that is performing. Be it a bulk data download, data processing or data mining, the different services offer specialized interfaces that are integrated on the portal. In the overall, the GENESI-DR project identifies best practices and supporting context for the use of a minimal abstract model to loosely connect a federation of Digital Repositories. Surpassing the apparent lack of cost effectiveness of the Spatial Data Infrastructures effort in developing "catalogue services" is achieved by trimming the use cases to the most common and relevant. The GENESI-DR scientific portal is, as such, the visible

  19. The Return to Foreign Aid

    DEFF Research Database (Denmark)

    Dalgaard, Carl-Johan Lars; Hansen, Henrik

    2017-01-01

    We estimate the average rate of return on investments financed by aid and by domestic resource mobilisation, using aggregate data. Both returns are expected to vary across countries and time. Consequently we develop a correlated random coefficients model to estimate the average returns. Across...... different estimators and two different data sources for GDP and investment our findings are remarkably robust; the average gross return on ‘aid investments’ is about 20 per cent. This is in accord with micro estimates of the economic rate of return on aid projects and with aggregate estimates of the rate...

  20. Decommissioning of DR 2. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Strufe, N.

    2009-02-15

    This report describes the work of dismantling and demolishing reactor DR 2, the waste volumes generated, the health physical conditions and the clearance procedures used for removed elements and waste. Since the ultimate goal for the decommissioning project was not clearance of the building, but downgrading the radiological classification of the building with a view to converting it to further nuclear use, this report documents how the lower classification was achieved and the known occurrence of remaining activity. The report emphasises some of the deliberations made and describes the lessons learned through this decommissioning project. The report also intends to contribute towards the technical basis and experience basis for further decommissioning of the nuclear facilities in Denmark. (au)

  1. Interview with Professor Dr. Daniel Spreng

    International Nuclear Information System (INIS)

    Nagel, C.; Kilchmann, A.

    2004-01-01

    This interview with Professor Dr. Daniel Spreng of the Center for Energy Policy and Economics (CEPE) in Zuerich, Switzerland, deals with questions concerning research in the area of energy economics. In particular, the situation in Switzerland, where mains-connected sources of energy such as electricity and gas play an important role in energy supply, is looked at in the light of market liberalisation. Various approaches to the liberalisation of gas and electricity systems are discussed and the costs of liberalised supply systems are compared with those of the present monopolistic situation. Also, energy reserves and the use of the gas distribution system in a future hydrogen-based energy supply scenario are looked at. Projects currently being worked on at the CEPE are reviewed

  2. Gaia DR2 documentation Chapter 3: Astrometry

    Science.gov (United States)

    Hobbs, D.; Lindegren, L.; Bastian, U.; Klioner, S.; Butkevich, A.; Stephenson, C.; Hernandez, J.; Lammers, U.; Bombrun, A.; Mignard, F.; Altmann, M.; Davidson, M.; de Bruijne, J. H. J.; Fernández-Hernández, J.; Siddiqui, H.; Utrilla Molina, E.

    2018-04-01

    This chapter of the Gaia DR2 documentation describes the models and processing steps used for the astrometric core solution, namely, the Astrometric Global Iterative Solution (AGIS). The inputs to this solution rely heavily on the basic observables (or astrometric elementaries) which have been pre-processed and discussed in Chapter 2, the results of which were published in Fabricius et al. (2016). The models consist of reference systems and time scales; assumed linear stellar motion and relativistic light deflection; in addition to fundamental constants and the transformation of coordinate systems. Higher level inputs such as: planetary and solar system ephemeris; Gaia tracking and orbit information; initial quasar catalogues and BAM data are all needed for the processing described here. The astrometric calibration models are outlined followed by the details processing steps which give AGIS its name. We also present a basic quality assessment and validation of the scientific results (for details, see Lindegren et al. 2018).

  3. The cold neutron source in DR 3

    International Nuclear Information System (INIS)

    Jensen, K.; Leth, j.A.

    1980-09-01

    A description of the cold neutron source in DR 3 is given. The moderator of the cold neutron source is supercritical hydrogen at about 30degK and 15 bar abs. The necessary cooling capacity is supplied by two Philips Stirling B20 cryogenerators. The hydrogen is circulated between the cryogenerators and the in-pile moderator chamber by small fans. The safety of the facility is based on the use of triple containment preventing contact between hydrogen and air. The triple containment is achieved by enclosing the high vacuum system, surrounging the hydrogen system, in a helium blanket. The achieved spectrum of the thermal neutron flux and the gain factor are given as well as the experience from more than 5 years of operation. Finally some work on extension of the facility to operate two cold sources is reported. (author)

  4. Dr. Hans Chang, Director, Physics Research Committee, Stichting voor Fundamenteel Onderzoek der Materie (FOM), Dr. Joris Van Enst, Head of Science Policy Division, Ministry of Education, Culture and S cience, Dr. Jan Bezemer, NL Delegate CERN, Netherlands

    CERN Multimedia

    Patrice Loiez

    1999-01-01

    Dr. Hans Chang, Director, Physics Research Committee, Stichting voor Fundamenteel Onderzoek der Materie (FOM), Dr. Joris Van Enst, Head of Science Policy Division, Ministry of Education, Culture and S cience, Dr. Jan Bezemer, NL Delegate CERN, Netherlands

  5. The 'successful' return

    DEFF Research Database (Denmark)

    Olwig, Karen Fog

    2012-01-01

    Research on female migrant caregivers has tended to focus upon the emotional and social problems they encounter working abroad, given women’s traditional role as caregivers for their own families. This article analyses how Caribbean women who have returned after a period abroad as domestic workers...... inscribe their migration experiences within the gendered narrative of the good relative who migrates to help the family left behind and therefore deserves social recognition in the community of origin. It argues that this narrative allows the women to both affirm and reinterpret local family and gender...... roles within the context of migration. This analysis points to the close connection between narrative structures, accounts of migration experiences, and self-presentations and suggests that narratives about family and gender roles not only reflect people’s lives, but are also a malleable resource...

  6. Goldie Brangman Remembers the Operation to Save Dr King.

    Science.gov (United States)

    Koch, Evan; Brangman, Goldie

    2015-12-01

    In September 1958 the Rev Dr Martin Luther King Jr was stabbed and nearly assassinated. Surgeons at Harlem Hospital in New York City removed a 17.8-cm (7-in)-long letter opener from Dr King's chest. Certified Registered Nurse Anesthetist Goldie Brangman remembers this event because she participated in Dr King's anesthetic. This article correlates Brangman's memories with published accounts of the event. It also places the event within the context of the modern civil rights movement that Dr King led.

  7. Where Anthropology Meets History—A Review of "Tracing China: A Forty-Year Ethnographic Journey," by Helen F. Siu

    Directory of Open Access Journals (Sweden)

    May Bo Ching

    2017-09-01

    Full Text Available Helen F. Siu. Tracing China: A Forty-Year Ethnographic Journey. Hong Kong: Hong Kong University Press, 2016. ISBN: 9789888083732. For years, Helen Siu tangoed with history and trekked the fields of South China. "Tracing China: A Forty-Year Ethnographic Journey"(Hong Kong University Press, 2016—a collection of Siu’s work published over the last twenty years—is not a grandiose showpiece splotched with a lot of paint and colors. Instead, she uses a 2B pencil to leave fine marks on wafer-thin parchment and smudges them ever so slightly, gradually letting the image emerge through the back of the page. If I have understood correctly, though plurality exists in the meanings of “trace,” Siu’s intention with the title Tracing China is less to track the history of China, and more to scrupulously examine every footstep she comes across, no matter how indistinct—to “look for plum blossoms in the snow,” as the Chinese saying goes. This saying might have inspired the Chinese version of the title of the collection, one that preserves a sense of graceful subtlety...

  8. La tipología urbanística alejandrina en la ciudad helenística

    Directory of Open Access Journals (Sweden)

    Joaquín Montero Múñiz

    2000-01-01

    Full Text Available En este artículo se realiza un acercamiento al urbanismo en la Antigüedad, y más en concreto al urbanismo regular aparecido en la antigua Grecia, que encuentra su máxima expresión y difusión con las conquistas territoriales de Alejandro Magno y, posteriormente, durante los reinos helenísticos. La planificación y la fundación de nuevas ciudades durante la época helenística no sólo es un agente motor de desarrollo económico, de control político-militar del territorio o de difusión cultural, sino un factor muy importante y profundo de la propaganda política regia que más tarde seguirán empleando los emperadores romanos.In this article is carried out an approach to the urbanism in the Antiquity, and specific to the planned urbanism in Ancient Greece, that finds its máximum expression and diffusion with Alexander's the Great territorial conquests and, later on, during the Hellenistic kingdoms. The planning and foundation of new cities during the Hellenistic era are not only a motor of economic development, political and military control of the territory or cultural diffusion, but a very important and deep factor of the royal political propaganda that will be used later by the Román emperors.

  9. Helen Kim as New Woman and Collaborator: A Comprehensive Assessment of Korean Collaboration under Japanese Colonial Rule

    Directory of Open Access Journals (Sweden)

    AhRan Ellie Bae

    2017-02-01

    Full Text Available Although almost seventy years has passed since Korea's liberation from Japanese rule, the issue of collaboration still haunts Korea today. Attempts to resolve this issue have tended to focus attention on the traitorous actions of "collaborators" without considering the gray areas that surround their actions such as the circumstances that influenced the accused to commit their alleged traitorous acts and the intentions that drove their decisions. Helen Kim, as a "new woman" and an educator, valued the necessity of providing education for women. Yet, her efforts to realize this goal, to the contrary, forced her into actions that would later be used to construct a reputation as a Japanese collaborator. Korea's nationalist historiography has a tendency to polarize this issue by categorizing a "collaborator" as either a traitor or a patriot. However, when we take a closer look at these collaborators' lives, we discover that most collaboration happened in gray areas where it is often difficult to clearly draw a line between treason and collaboration. Helen Kim's case suggests that the issue of collaboration cannot be fully explained by nationalist historiography's framework and we must give attention to these gray areas. Through her story I hope to complicate the issue of collaboration by raising questions that address the gray areas that surround the actions of "collaborators." In doing so, I hope to challenge the nationalist historiography's propensity to oversimplify this issue and present a more nuanced understanding of it.

  10. Computing return times or return periods with rare event algorithms

    Science.gov (United States)

    Lestang, Thibault; Ragone, Francesco; Bréhier, Charles-Edouard; Herbert, Corentin; Bouchet, Freddy

    2018-04-01

    The average time between two occurrences of the same event, referred to as its return time (or return period), is a useful statistical concept for practical applications. For instance insurances or public agencies may be interested by the return time of a 10 m flood of the Seine river in Paris. However, due to their scarcity, reliably estimating return times for rare events is very difficult using either observational data or direct numerical simulations. For rare events, an estimator for return times can be built from the extrema of the observable on trajectory blocks. Here, we show that this estimator can be improved to remain accurate for return times of the order of the block size. More importantly, we show that this approach can be generalised to estimate return times from numerical algorithms specifically designed to sample rare events. So far those algorithms often compute probabilities, rather than return times. The approach we propose provides a computationally extremely efficient way to estimate numerically the return times of rare events for a dynamical system, gaining several orders of magnitude of computational costs. We illustrate the method on two kinds of observables, instantaneous and time-averaged, using two different rare event algorithms, for a simple stochastic process, the Ornstein–Uhlenbeck process. As an example of realistic applications to complex systems, we finally discuss extreme values of the drag on an object in a turbulent flow.

  11. 95 GHz methanol masers near DR 21 and DR 21(OH)

    International Nuclear Information System (INIS)

    Plambeck, R.L.; Menten, K.M.

    1990-01-01

    The BIMA array is used to map the 95-GHz 8(0) to 7 1A(+) transition of methanol and the 98-GHz J = 2-1 transition of CS toward the DR 21(OH) and DR 21 star-forming regions. Several strong methanol masers were found. The positions of the two brightest masers were measured with an accuracy of about + or - 0.3 arcsec. Toward DR 21(OH), the positions, velocities, and line shapes of the 95 GHz masers are in excellent agreement with those of the 84-GHz 5(-1) to 4 () methanol masers previously mapped by Batrla and Menten (1988), demonstrating that maser emission in both transitions originates from the same clumps of gas. The methanol masers are offset from CS emission peaks and from other known infrared and maser sources; they may possibly be clustered along the interface between outflows, traced by shock-excited H2 emission, and dense ambient gas, traced by CS emission. 25 refs

  12. Critical Terrorism Studies Since 11 September 2001: What Has Been Learned? Edited by David Miller, Jessie Blackbourn, Rani Dhanda and Helen Dexter. New York, NT: Routledge, 2014.

    Directory of Open Access Journals (Sweden)

    Mark Roberts

    2014-04-01

    Full Text Available Critical Terrorism Studies Since 11 September 2001: What Has Been Learned? Edited by David Miller, Jessie Blackbourn, Rani Dhanda and Helen Dexter. New York, NT: Routledge, 2014. ISBN 978-0-415-83852-8. Graphs. Tables. Sources cited. Index. Pp. viii, 144. $137.75.

  13. Assessing New and Old Methods in Paleomagnetic Paleothermometry: A Test Case at Mt. St. Helens, USA

    Science.gov (United States)

    Bowles, J. A.; Gerzich, D.; Jackson, M. J.

    2017-12-01

    Paleomagnetic data can be used to estimate deposit temperatures (Tdep) of pyroclastic density currents (PDCs). The typical method is to thermally demagnetize oriented lithic clasts incorporated into the PDC. If Tdep is less than the maximum Curie temperature (Tc), the clast is partially remagnetized in the PDC, and the unblocking temperature (Tub) at which this remagnetization is removed is an estimate of Tdep. In principle, juvenile clasts can also be used, and Tub-max is taken as the minimum Tdep. This all assumes blocking (Tb) and unblocking temperatures are equivalent and that the blocking spectrum remains constant through time. Recent evidence shows that Tc in many titanomagnetites is a strong function of thermal history due to a crystal-chemical reordering process. We therefore undertake a study designed to test some of these assumptions and to assess the extent to which the method may be biased by a Tb spectrum that shifts to higher T during cooling. We also explore a new magnetic technique that relies only on stratigraphic variations in Tc. Samples are from the May 18, 1980 PDCs at Mt. St. Helens, USA. Direct temperature measurements of the deposits were 297 - 367°C. At sites with oriented lithics, standard methods provide a Tdep range that overlaps with measured temperatures, but is systematically higher by a few 10s of °C. By contrast, pumice clasts all give Tdep_min estimates that greatly exceed lithic estimates and measured temperatures. We attribute this overestimate to two causes: 1) Tc and Tub systematically increase with depth as a result of the reordering process. This results in Tdep_min estimates that vary by 50°C and increase with depth. 2) MSH pumice is multi-domain, where Tub > Tb, resulting in a large overestimate in Tdep. At 5 sites, stratigraphic variations in Tc were conservatively interpreted in terms of Tdep as 300°C. More sophisticated modeling of the time-temperature-depth evolution of Tc allows us to place tighter constraints on

  14. The source of infrasound associated with long-period events at mount St. Helens

    Science.gov (United States)

    Matoza, R.S.; Garces, M.A.; Chouet, B.A.; D'Auria, L.; Hedlin, M.A.H.; De Groot-Hedlin, C.; Waite, G.P.

    2009-01-01

    During the early stages of the 2004-2008 Mount St. Helens eruption, the source process that produced a sustained sequence of repetitive long-period (LP) seismic events also produced impulsive broadband infrasonic signals in the atmosphere. To assess whether the signals could be generated simply by seismic-acoustic coupling from the shallow LP events, we perform finite difference simulation of the seismo-acoustic wavefield using a single numerical scheme for the elastic ground and atmosphere. The effects of topography, velocity structure, wind, and source configuration are considered. The simulations show that a shallow source buried in a homogeneous elastic solid produces a complex wave train in the atmosphere consisting of P/SV and Rayleigh wave energy converted locally along the propagation path, and acoustic energy originating from , the source epicenter. Although the horizontal acoustic velocity of the latter is consistent with our data, the modeled amplitude ratios of pressure to vertical seismic velocity are too low in comparison with observations, and the characteristic differences in seismic and acoustic waveforms and spectra cannot be reproduced from a common point source. The observations therefore require a more complex source process in which the infrasonic signals are a record of only the broadband pressure excitation mechanism of the seismic LP events. The observations and numerical results can be explained by a model involving the repeated rapid pressure loss from a hydrothermal crack by venting into a shallow layer of loosely consolidated, highly permeable material. Heating by magmatic activity causes pressure to rise, periodically reaching the pressure threshold for rupture of the "valve" sealing the crack. Sudden opening of the valve generates the broadband infrasonic signal and simultaneously triggers the collapse of the crack, initiating resonance of the remaining fluid. Subtle waveform and amplitude variability of the infrasonic signals as

  15. A doctor's duty is to heal the unhealthy: the story of Tun Dr Mahathir Mohamad.

    Science.gov (United States)

    Ong, H T

    2005-07-01

    Mahathir Mohamad was born in 1925 in Alor Star, Kedah. He entered the King Edward VII College of Medicine in Singapore in 1947 and graduated in 1953. His years in the medical school equipped young Mahathir with the training necessary to assess and diagnose a problem, before dispensing the appropriate treatment. Throughout his later years in the political limelight, Dr Mahathir recognised the very important role the medical college had in laying the strong foundation for his successful career. He joined UMNO in 1945, already interested in politics at the tender age of 20; he was first elected into Parliament in 1964. The vigorous expression of his candid views did not go down well during the troubled days following the 13 May 1969 racial riots and he was expelled from UMNO, his writings were banned, and he was considered a racial extremist. Nevertheless, his intellectual and political influence could not be ignored for long; he returned to Parliament in 1974, and became the fourth, and longest serving, Prime Minister of Malaysia in 1981. Dr Mahathir has found fame as a Malay statesman, and an important Asian leader of the twentieth century with much written, locally and internationally, debating his policies. This article, using Dr Mahathir's own writings, starts with his description of his early life, proceeds to look at his medical career, then touches on his diagnosis of the problems plaguing the Malays, before concluding with his views on the need to stand up to the prejudices and pressures of the Western world. Throughout his life, Dr Mahathir behaved as the ever-diligent medical doctor, constantly studying the symptoms to diagnose the cause of the ills in his community and country, before proceeding to prescribe the correct treatment to restore good health. It is a measure of his integrity and intellectual capability that he did not seek to hide his failures, or cite unfinished work in an attempt to cling to political power.

  16. Return to the... past

    International Nuclear Information System (INIS)

    Ammerich, M.

    2009-01-01

    This article goes back over the incidents occurring during the summer 2008, that is to say the uranium release from the Socatri facility in the South of France. From this point, the purpose studies the radiological situation of the Camargue seashore; the levels of radioactivity are from 3 to thirty times higher than these ones expected in this area, but the natural radioactivity with thorium and uranium coming from the granitic massifs erosion brings an important part. It is difficult to make the part between human and natural contribution to ambient radioactivity. However, it appears that to limit the water consumption until the time of dilution played its part was absolutely necessary. Then, because it is question of water, the drinking water is tackled. Some mineral waters go over the recommended limits of doses. A last return to the past with the radioactive watches, but this time with actual watches that activate detection. Two watches contained promethium 147, 147 Pm is a beta emitter but also gamma emitter. To end, in Ireland and Great Britain, some fire detectors contain americium 241. In fact, this article constitutes a summary of different abnormalities around radioactivity. (N.C.)

  17. The return of religion

    Directory of Open Access Journals (Sweden)

    S. Griffioen

    2011-06-01

    Full Text Available Religion is back in Philosophy as a respectable subject. Part 1 first charts what MacIntyre, Taylor and Derrida have meant in this regard. Subsequently, it turns to the Enlightenment to determine what constituted the breakthrough. It is found that even where the Enlightenment gave maximum room to religion i.e. as a civic religion and as “religion of the heart” it still excluded a constitutive relation to a transcendent revelation. Part 2 centres on the religion-faith distinction in reformational philosophy. Similar to the Enlightenment, religion is understood as part of human nature. However, human nature itself is conceived as intrinsically religious and depending for its light on revelation. Secondly, “religion” in this context also encompasses idols and religious substitutes. Thus, it directs attention to shopping malls, football stadiums, health policy, et cetera, as possible contexts of a return of religion. Examples show that this has become a popular approach. However, most of the publications surveyed fail to distinguish between an “analogical” and a “pistically qualified” use of religion, and are open to exaggerations (the shopping mall and football stadiums as temples, etc.. At this junction, the relevance is shown of the religion-faith distinction as well as of Elaine Botha’s theory of metaphors. The epilogue offers an integration of parts one and two.

  18. PUC fast track nips returns

    International Nuclear Information System (INIS)

    Anon.

    1990-01-01

    In the first of what it says will be annual cost-of-capital proceedings to set returns on equity and rates of return on rate base for electric utilities, the California Public Utilities Commission (PUC) lowered from 1989 levels the 1990 returns on common equity (ROE) and rates of return (ROR) for the state's four major investor-owned electric utilities. Under this fast-track procedure, by May 8 of every year, utilities will have to file an application for rate adjustments that reflect their projected costs of capital for the following year

  19. The return to foreign aid

    DEFF Research Database (Denmark)

    Dalgaard, Carl-Johan Lars; Hansen, Henrik

    We investigate the marginal productivity of investment across countries. The aim is to estimate the return on investments financed by foreign aid and by domestic resource mobilization, using aggregate data. Both returns are expected to vary across countries and time. Consequently we develop...... a correlated random coefficients model, to estimate the average aggregate return on ‘aid investments’ and ‘domestic investments’. Across different estimators and two different sources for GDP and investment data our findings are remarkably robust; the average gross return on ‘aid investments’ is about 20 per...

  20. Dr. Hall and the work cure.

    Science.gov (United States)

    Reed, Kathlyn L

    2005-01-01

    Herbert James Hall, MD (1870-1923), was a pioneer in the systematic and organized study of occupation as therapy for persons with nervous and mental disorders that he called the "work cure." He began his work in 1904 during the early years of the Arts and Crafts Movement in the United States. His primary interest was the disorder neurasthenia, a condition with many symptoms including chronic fatigue, stress, and inability to work or perform everyday tasks. The prevailing treatment of the day was absolute bed rest known as the "rest cure." Hall believed that neurasthenia was not caused by overwork but by faulty living habits that could be corrected through an ordered life schedule and selected occupations. He identified several principles of therapy that are still used today including graded activity and energy conservation. Dr. Adolph Meyer credits Hall for organizing the ideas on the therapeutic use of occupation (Meyer, 1922). Hall also provided the name American Occupational Therapy Association for the professional organization and served as the fourth president. For his many contributions to the profession Hall deserves to be recognized as a major contributor to the development and organization of occupational therapy.

  1. Dr. Rudolph Binion: professor, mentor, psychohistorian.

    Science.gov (United States)

    Szaluta, Jacques

    2015-01-01

    As the title of my paper indicates, Dr. Rudolph Binion was my professor, mentor, and a leading psychohistorian. My paper in memoriam to Rudolph Binion is intended as both a retrospective and an introspective account of my relationship with him, as he had a pivotal influence on me when he was my professor at Columbia University. His help and influence continued after I left graduate school. In my paper I also deal with the enormous stresses of navigating through graduate school, for those students whose goal was to earn the Ph.D. degree. Some examinations were dreaded, For Example The "Examination in Subjects," popularly called the "Oral Exam." The "incubation" period was long indeed, frequently averaging nearly ten years, and it was an ordeal, as the rate of attrition was very high. There is then also the question of "ego strength" and that of "transference" toward the professor. Graduate school is indeed a long and strenuous challenge. I took a seminar in modern French history, a requirement for the Master's degree with Professor Binion, which was consequential for me, as he taught me to be objective in writing history. Professor Binion was a demanding and outstanding teacher.

  2. SDSS DR7 WHITE DWARF CATALOG

    Energy Technology Data Exchange (ETDEWEB)

    Kleinman, S. J.; Nitta, A. [Gemini Observatory, 670 North A' ohoku Place, Hilo, HI 96720 (United States); Kepler, S. O.; Pelisoli, Ingrid; Pecanha, Viviane; Costa, J. E. S. [Instituto de Fisica, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS (Brazil); Koester, D. [Institut fuer Theoretische Physik und Astrophysik, Universitaet Kiel, D-24098 Kiel (Germany); Krzesinski, J. [Mt. Suhora Observatory, Pedagogical University of Cracow, ul. Podchorazych 2, 30-084 Cracow (Poland); Dufour, P.; Lachapelle, F.-R.; Bergeron, P. [Departement de Physique, Universite de Montreal, C. P. 6128, Succ. Centre-Ville, Montreal, Quebec H3C 3J7 (Canada); Yip, Ching-Wa [Department of Physics and Astronomy, The Johns Hopkins University, 3701 San Martin Drive, Baltimore, MD 21218 (United States); Harris, Hugh C. [United States Naval Observatory, Flagstaff Station, 10391 West Naval Observatory Road, Flagstaff, AZ 86001-8521 (United States); Eisenstein, Daniel J. [Harvard Smithsonian Center for Astrophysics, 60 Garden Street, MS 20, Cambridge, MA 02138 (United States); Althaus, L.; Corsico, A., E-mail: hch@nofs.navy.mil [Facultad de Ciencias Astronomicas y Geofisicas, Paseo del Bosque S/N, (1900) La Plata (Argentina)

    2013-01-15

    We present a new catalog of spectroscopically confirmed white dwarf stars from the Sloan Digital Sky Survey (SDSS) Data Release 7 spectroscopic catalog. We find 20,407 white dwarf spectra, representing 19,712 stars, and provide atmospheric model fits to 14,120 DA and 1011 DB white dwarf spectra from 12,843 and 923 stars, respectively. These numbers represent more than a factor of two increase in the total number of white dwarf stars from the previous SDSS white dwarf catalogs based on DR4 data. Our distribution of subtypes varies from previous catalogs due to our more conservative, manual classifications of each star in our catalog, supplementing our automatic fits. In particular, we find a large number of magnetic white dwarf stars whose small Zeeman splittings mimic increased Stark broadening that would otherwise result in an overestimated log g if fit as a non-magnetic white dwarf. We calculate mean DA and DB masses for our clean, non-magnetic sample and find the DB mean mass is statistically larger than that for the DAs.

  3. A Tribute to Prof Dr Da Ruan

    CERN Document Server

    Kerre, Etienne

    2013-01-01

    This volume is a tribute to Professor Dr Da Ruan, who passed away suddenly on July 31, 2011, aged 50. The flood of emails that spread throughout the fuzzy logic research community with the tragic news was testimony to the respect and liking felt for this remarkable man. Da was a hardworking , highly productive scientist who, during his short life, published 35 books and more than 250 research papers in highly ranked journals and conference proceedings. He established two successful conferences, FLINS and ISKE, as well as the international journal, JCIS. This book is a collection of contributions from 88 of Da's academic friends from 47 institutes, presented in 60 chapters and over 70 pictures. A Foreword by Lotfi Zadeh begins Da's story. Section 1 provides an overview of Da's funeral on August 6, 2011. Part II outlines Da’s scientific life, his education, scientific career, publications and keynote talks. Part III presents testimonials by Da's colleagues of academic activities, including guest professorship...

  4. Dr. Irene Sänger-Bredt, a life for astronautics

    Science.gov (United States)

    Zaganescu, Nicolae-Florin

    2004-12-01

    Irene Bredt (b.1911 at Bonn) obtained her Doctorate in Physics in 1937; in the same year she became a scientific researcher at the German Research Center for Aviation at Trauen, led by Prof. Dr. Eugen Sänger. Soon, the young but efficient Dr. Irene Bredt became the first assistant of Dr. Sänger, who married her (1951). During 1973-1978, Dr. Bredt was in correspondence with Prof. Dr. Nikolae-Florin Zaganescu and helped him to familiarize the Romanian readers with Prof. Sänger's life and achievements. As for Dr. Bredt's life, she specified three main periods of her activity: 1937-1942, when she was researcher in charge of thermodynamic problems of liquid-fuelled rocket engines at Trauen 1942-1945, when she was Senior Researcher in charge of Ramjet in flight performances at Ainring, and also coauthored the Top Secret Technical report entitled 'A Rocket Engine for a Long-Range Bomber', which was finished in 1941 but edited only in 1944 the post world war II period, when she was Scientific Advisor or Director at various civil and military research institutes, universities, etc. Dr. Irene Sänger-Bredt helped her husband to develop many scientific theories like Ramjet thermodynamic theory, and photon rocket theory and also in establishing IAF and IAA. In 1970, Dr. Irene Sänger-Bredt was honored with 'Hermann Oberth Gold Medal' for her impressive scientific activity.

  5. Interview with Smithsonian NASM Spacesuit Curator Dr. Cathleen Lewis

    Science.gov (United States)

    Lewis, Cathleen; Wright, Rebecca

    2012-01-01

    Dr. Cathleen Lewis was interviewed by Rebecca Wright during the presentation of an "Interview with Smithsonian NASM Spacesuit Curator Dr. Cathleen Lewis" on May 14, 2012. Topics included the care, size, and history of the spacesuit collection at the Smithsonian and the recent move to the state-of-the-art permanent storage facility at the Udvar-Hazy facility in Virginia.

  6. Celebrating the Life and Legacy of Dr. John Hope Franklin

    Science.gov (United States)

    Harris, Robert L., Jr.; Levering-Lewis, David; French, John D.; Wharton, Clifton R., Jr.

    2009-01-01

    Dr. John Hope Franklin chronicled the experiences of African-Americans like no one before him, forcing America to recognize Black history as American history. His contributions were innumerable and his impact was abiding. In celebration of his life and legacy, the authors profile the celebrated scholar and activist, Dr. John Hope Franklin.

  7. Dr. Albert Carr--Science Educator 1930-2000

    Science.gov (United States)

    Lopez, Leslie

    2013-01-01

    The very first issue of "Educational Perspectives" was published in October of 1962. Dr. Albert Carr wrote one of the inaugural essays on the topic of current developments in science education, and he went on to write several other articles for the journal. This article shares why Dr. Albert Carr's colleagues remember him for his…

  8. Profile Interview: Dr. Patrick Dongosolo Kamalo – Consultant ...

    African Journals Online (AJOL)

    Dr. Yohane Gadama (YG), an MMJ intern, interviews Dr. Patrick Dongosolo Kamalo (PDK) on his work as Malawi's only local practicing neurosurgeon, the launch of Blantyre Institute of Neurological Sciences (BINS) and the beginning of Neurosurgery training in Malawi ...

  9. Dr. Praveen Chaudhari named director of Brookhaven National Laboratory

    CERN Multimedia

    2003-01-01

    "Brookhaven Science Associates announced today the selection of Dr. Praveen Chaudhari as Director of the U.S. Department of Energy's Brookhaven National Laboratory. Dr. Chaudhari, who will begin his new duties on April 1, joins Brookhaven Lab after 36 years of distinguished service at IBM as a scientist and senior manager of research" (1 page).

  10. Association of differentiated thyroid carcinoma with HLA-DR7

    International Nuclear Information System (INIS)

    Sridama, V.; Hara, Y.; Fauchet, R.; DeGroot, L.J.

    1985-01-01

    Seventy-four American white thyroid cancer patients were typed for HLA-A, B, and DR antigens. A significant increase in HLA-DR7 was found in the nonradiation-associated thyroid cancer patients (42.5%, 20/47 cases), compared to 22.8% of 979 normal controls. The association is stronger in the follicular and mixed papillary-follicular subgroup (52.0%, 13/25 cases, P corrected less than 0.01). The occurrence of various malignancies in family members was found in 57.9% of HLA-DR7 positive patients, versus 20% of HLA-DR7 negative patients, in a retrospective record review. Although the frequency of HLA-DR7 was not increased in the radiation-associated thyroid cancer patients (22.2%, 6/27 cases), the interval from the irradiation date to the onset date of thyroid cancer was shorter in HLA-DR7 positive cases (17.3 +/- 6.2 years) than in HLA-DR7 negative patients (29.4 +/- 11.5 years). This data suggest that HLA-DR7 is associated with and may influence development of thyroid cancer

  11. Dr. Martin Luther King, Jr. as Spiritual Leader

    Directory of Open Access Journals (Sweden)

    Andrea Pierce

    2013-09-01

    Full Text Available The purpose of this paper is to explore Dr. Martin Luther King Jr.’s spiritual leadership through his “I Have a Dream” speech. The paper explores the three characteristics of spiritual leadership as posed by Fry’s (2003 spiritual leadership theory: vision, hope/faith and altruistic love. The research draws upon these characteristics through qualitative content analysis of Dr. Martin Luther King Jr.’s “I Have a Dream” speech to illustrate Dr. King’s leadership as that of a spiritual leader. The research advances the spiritual leadership theory by establishing Dr. Martin Luther King Jr. as a spiritual leader. Through the illustration of Dr. King’s spiritual leadership, the characteristics of a spiritual leader are given tangible understanding.

  12. Isotopic Insights Into the Degassing and Secondary Hydration Rates of Volcanic Glass From the 1980 Eruptions of Mount St. Helens

    Science.gov (United States)

    Seligman, A. N.; Bindeman, I. N.; Van Eaton, A. R.; Hoblitt, R. P.

    2016-12-01

    Following eruption, volcanic glass undergoes hydration in its depositional environment, which overprints the history of magmatic degassing recorded in the glass. However, the rates of secondary hydration of volcanic glass used for paleoclimate studies are poorly constrained. Here, we present our results of a natural experiment using products of the 1980 eruptions of Mount St. Helens. We measured the δD of extracted water and the δ18O of the bulk glass of samples collected during the dry summer months of 1980 and compared them with material resampled in August of 2015. Results demonstrate that only samples collected from the subsurface near gas escape pipes show elevated water concentrationss (near 2.0 wt.%) and low δD (-110 to -130 ‰) and δ18O (6.0 to 6.6 ‰) values, and that the initial process of secondary hydration is not always a simple addition of low δD waters at ambient temperature. On average, the 2015 surface samples have slightly higher water contents (0.1-0.2 wt.%) and similar δ18O (6.8 - 6.9 ‰) to those collected in 1980. Given the moderate vesicularity of the samples and the slow rate of surface temperature diffusion, we attribute these observations to hydration during cooling, with only little exchange after. We also compare our results to rapidly quenched air fall pumice from the May 18th eruption, which shows moderate δD values (-74 ‰) and water concentrations (0.3 wt.%) that are closer to those for the 1980 samples. Surprisingly, the 2015 surface samples show higher δD values (+15 ‰), which we attribute to any of four possibilities: (1) evaporation or (2) degassing of underlying deposits; (3) exchange of hydrogen with local vegetation; and/or (4) microlite crystallization that aided diffusion of water. Reconstructed δD-H2O trends for the Mount St. Helens samples collected in 1980 support previous studies proposing that exsolved volatiles were trapped within a rapidly rising magma that degassed at shallow depths. The dacitic Mount

  13. Comparaison du Srōš Drōn avec le Drōn Yašt

    OpenAIRE

    Redard, Céline

    2015-01-01

    This paper draws a parallel between two texts having the same textual base: The Srōš Drōn, derived from the Long Liturgy and the Drōn Yašt, belonging to the short liturgies. The goal is to establish the similarities and the discrepancies between these two texts. Peer reviewed

  14. Corporate Governance and Equity Returns

    OpenAIRE

    Uchida, Shigeru

    2012-01-01

    This paper analyses the relationship between corporate governance and equity returns from the small investors view point. A primary survey has been conducted to gather the data required to examine the link. Preliminary result of the study shows that the four elements of governance: board structure, transparency, fairness and responsibility are positively related with equity returns.

  15. Prava trećih država u gospodarskom pojasu obalne države

    Directory of Open Access Journals (Sweden)

    Marina Vokić Žužul

    2003-12-01

    Full Text Available Predmet ovoga rada je analiza prava koja u gospodarskom pojasu obalne države mogu ostvarivati sve obalne i neobalne države. uz detaljan prikaz pravnog uređenja materije u odredbama Konvencije o pravu mora iz 1982., razmatraju se i vladajuća gledišta međunarodnopravne doktrine te rješenja u zakonodavstvima pojedinih zemalja. Posebna pozornost je posvećena ostvarivanju tuh prava u potencijalnom hrvatskom gospodarskom pojasu, prvenstveno mogućim zahtjevima od strane susjednih neobalnih država i država u nepovoljnom geografskom položaju. Sva pitanja razmatrana u ovom radu upućuju na zaključak da ispunjavanje dužnosti prema drugim državama u budućem gospodarskom pojasu RH ne bi trebalo imati utjecaja na donošenje odluke o njegovom proglašenju.

  16. Helen Sullivan, The Communal Mind and the Master Artifice, Athènes, Stochastis Editions, 2009-2010, 725 pages.

    Directory of Open Access Journals (Sweden)

    Dorval Brunelle

    2011-11-01

    Full Text Available La petite histoire de la publication de ce gros livre, tout comme celle de son auteur d’ailleurs, est assez inusitée et mérite certainement le detour avant d’entrer dans le vif du sujet. Le contexteHelen Sullivan était historienne et sociologue; elle est née aux États-Unis en 1906 et elle est morte en Grèce, en 1992. Diplomée de la Cornell University, elle a été l’une des 15 assistant editors de la vaste Encyclopaedia of Social Sciences publiée sous la direction de Edwin R. A. Seligman à comp...

  17. Sediment erosion and delivery from Toutle River basin after the 1980 eruption of Mount St. Helens: A 30-year perspective

    Science.gov (United States)

    Major, Jon J.; Mosbrucker, Adam; Spicer, Kurt R.; Crisafulli, Charles; Dale, V.

    2018-01-01

    Exceptional sediment yields persist in Toutle River valley more than 30 years after the major 1980 eruption of Mount St. Helens. Differencing of decadal-scale digital elevation models shows the elevated load comes largely from persistent lateral channel erosion across the debris-avalanche deposit. Since the mid-1980s, rates of channel-bed-elevation change have diminished, and magnitudes of lateral erosion have outpaced those of channel incision. A digital elevation model of difference from 1999 to 2009 shows erosion across the debris-avalanche deposit is more spatially distributed compared to a model from 1987 to 1999, in which erosion was strongly focused along specific reaches of the channel.

  18. Dr. Steve Thompson, Chief Executive, The Royal Society of New Zealand

    CERN Multimedia

    Maximilien Brice

    2002-01-01

    L. to r.: Dr Austin Ball, Deputy Technical Coordinator, CMS experiment; Dr Roland Horisberger, Paul Scherrer Institute and CERN, CMS experiment; Dr Steve Thompson, Chief Executive, The Royal Society of New Zealand; Dr Michel Della Negra, Spokesman, CMS experiment and Dr Alick Macpherson, Paul Scherrer Institute and CERN, CMS experiment, in the CMS Silicon Tracker assembly hall.

  19. Landscape Response to the 1980 Eruption of Mount St. Helens: Using Historical Aerial Photography to Measure Surface Change

    Science.gov (United States)

    Sweeney, K.; Major, J. J.

    2016-12-01

    Advances in structure-from-motion (SfM) photogrammetry and point cloud comparison have fueled a proliferation of studies using modern imagery to monitor geomorphic change. These techniques also have obvious applications for reconstructing historical landscapes from vertical aerial imagery, but known challenges include insufficient photo overlap, systematic "doming" induced by photo-spacing regularity, missing metadata, and lack of ground control. Aerial imagery of landscape change in the North Fork Toutle River (NFTR) following the 1980 eruption of Mount St. Helens is a prime dataset to refine methodologies. In particular, (1) 14-μm film scans are available for 1:9600 images at 4-month intervals from 1980 - 1986, (2) the large magnitude of landscape change swamps systematic error and noise, and (3) stable areas (primary deposit features, roads, etc.) provide targets for both ground control and matching to modern lidar. Using AgiSoft PhotoScan, we create digital surface models from the NFTR imagery and examine how common steps in SfM workflows affect results. Tests of scan quality show high-resolution, professional film scans are superior to office scans of paper prints, reducing spurious points related to scan infidelity and image damage. We confirm earlier findings that cropping and rotating images improves point matching and the final surface model produced by the SfM algorithm. We demonstrate how the iterative closest point algorithm, implemented in CloudCompare and using modern lidar as a reference dataset, can serve as an adequate substitute for absolute ground control. Elevation difference maps derived from our surface models of Mount St. Helens show patterns consistent with field observations, including channel avulsion and migration, though systematic errors remain. We suggest that subtracting an empirical function fit to the long-wavelength topographic signal may be one avenue for correcting systematic error in similar datasets.

  20. Volcano dome dynamics at Mount St. Helens: Deformation and intermittent subsidence monitored by seismicity and camera imagery pixel offsets

    Science.gov (United States)

    Salzer, Jacqueline T.; Thelen, Weston A.; James, Mike R.; Walter, Thomas R.; Moran, Seth C.; Denlinger, Roger P.

    2016-01-01

    The surface deformation field measured at volcanic domes provides insights into the effects of magmatic processes, gravity- and gas-driven processes, and the development and distribution of internal dome structures. Here we study short-term dome deformation associated with earthquakes at Mount St. Helens, recorded by a permanent optical camera and seismic monitoring network. We use Digital Image Correlation (DIC) to compute the displacement field between successive images and compare the results to the occurrence and characteristics of seismic events during a 6 week period of dome growth in 2006. The results reveal that dome growth at Mount St. Helens was repeatedly interrupted by short-term meter-scale downward displacements at the dome surface, which were associated in time with low-frequency, large-magnitude seismic events followed by a tremor-like signal. The tremor was only recorded by the seismic stations closest to the dome. We find a correlation between the magnitudes of the camera-derived displacements and the spectral amplitudes of the associated tremor. We use the DIC results from two cameras and a high-resolution topographic model to derive full 3-D displacement maps, which reveals internal dome structures and the effect of the seismic activity on daily surface velocities. We postulate that the tremor is recording the gravity-driven response of the upper dome due to mechanical collapse or depressurization and fault-controlled slumping. Our results highlight the different scales and structural expressions during growth and disintegration of lava domes and the relationships between seismic and deformation signals.

  1. [Dr. Luis Cifuentes Delatte. Memories and teaching].

    Science.gov (United States)

    Pérez Albacete, Mariano

    2008-12-01

    With the celebration of the centenary of the birth of Dr. Luis Cifuentes Delatte, due to his great scientific personality, we want to emphasize two features that, taken from his works and memories, we consider have not been emphasized enough: his role as historian of urology, both for the histories he narrated of his life experiences and the historical exposition of several pathologies, and also his teaching as professor of several generations of urologists, with the objective of trying to get to know his great human quality as he demonstrated over his life and showed in his writings. We review his books and works, lectures and published papers, in addition the news about his person we have collected from the media, and after analysis, mainly of his memories, we extract data reflecting his personality, and they way he thought and behaved. Since he was young he went with his father to the international urology meetings where he met a great number of personalities in the World of Urology; he extended his training with them, and later on they got to have a great relationship. He travelled around Europe and United States before and after Second World War, respectively, with stays in the most prestigious centers, which he described meticulously. He also reported his activity during the first two years he directed the Department of Urology at the Hospital La Princesa in Madrid and cited the series of collaborators he had. In his research works he made an ample description of historical development as introduction to the various pathologies he analyzed in depth. The reading of the narration of his trips, that he did in the convulse International time he lived, offers details which enable us to know firsthand the situation of urology and the human side of the actors he had relation with, and the social life they had, in addition to data about their families and daily life. As a researcher in transcendental chapters in urological pathology we emphasize his historical

  2. [The life of Dr. RO Kishun, a reflection of modern Korean medical history of the borders].

    Science.gov (United States)

    Shin, Young-Jeon; Park, Se-Hong

    2009-06-01

    RO Kishun was born on February 2, 1893 in Ongjin County, Hwanghae Province of Joseon Korea. He graduated from the Medical Training Center, a campus associated with the Joseon Government-General Hospital, in 1915, and from Kyushu Imperial University School of Medicine in 1917. He continued his medical study at the university in 1929, majoring in biochemistry, and earned a doctorate in medicine in 1932. Dr. RO, one of the earliest pioneers in Korean biochemistry, was active in his research, publishing four studies in the Japanese Journal of Biochemistry between 1931 and 1932. After returning from Japan in 1932, Dr. RO opened a medical practice in Mokpo and Busan, port cities situated on the southern tip of Korea. Later in 1936, he moved north to Manchuria (northeast China) to practice medicine at the International Hospital in Mukden (present-day Shenyang). He also served as president of Tumen Public Hospital between 1942 and 1946. When Japan signed unconditional surrender bringing World War II to an end, Dr. RO relocated to Yanbian and began providing medical training to ethnic Koreans. In October 1946, he was appointed dean of the First Branch School of China Medical University in Longjing, and in October 1948 the first dean of Yanbian Medical School, the predecessor of Yanbian University College of Medicine. Dr. RO dedicated his life to medical practice, teaching and training students, and mentoring younger faculty. A brilliant clinician, he also inspired and helped his colleagues with his outstanding ability to diagnose and treat patients. He was one of the founding members of Yanbian University College of Medicine. RO Kishun died on June 7, 1957 at age 64. Ethnic Koreans hailed him as Sinui (literally, the physician of God), and a bronze statue of himself was erected in front of the medical college in 1988. Dr. RO's life brings modern historians' attention to the issue of determining geographical territories and nationality, in that his life unfolded at the

  3. Grantee Spotlight: Dr. Kolawole Okuyemi - Improving Cervical Cancer Screening Attitudes

    Science.gov (United States)

    Dr. Kolawole Okuyumi is studying cervical cancer screening attitudes and behaviors of African immigrants and refugees (Ethiopians, Nigerians, and Somalis) in Minnesota, and introducing “cancer” and “cervix” to their everyday vocabulary.

  4. 105-DR large sodium fire facility closure Plan. Revision 2

    International Nuclear Information System (INIS)

    Ruck, F.A. III.

    1995-03-01

    The 105-DR Large Sodium Fire Facility (LSFF), which was operated 1972-1986, was a research laboratory that occupied the former ventilation supply room on the SW side of the 105-DR Reactor Facility. (The 105-DR defense reactor was shut down in 1964.) LSFF was used to investigate fire and safety aspects of large sodium or other metal alkali fires in the LMFBR facilities; it was also used to store and treat alkali metal waste. This closure plan presents a description of the unit, the history of the waste managed, and the procedures that will be followed to close the LSFF as an Alkali Metal Treatment Facility. No future use of LSFF is expected. It is located within the 100-DR-2 (source) and 100-HR-3 (groundwater) operable units, which will be addressed through the RCRA facility investigation/corrective measures study process

  5. Glaucoma: Eye-to-Eye with Dr. Rachel Bishop

    Science.gov (United States)

    ... of this page please turn JavaScript on. Feature: Glaucoma Eye-to-Eye with Dr. Rachel Bishop Past ... nerves are pale and cupped—signs of advanced glaucoma. Yet the patient wasn't aware of any ...

  6. Decommissioning of DR 2. Experiences learnt from the completion

    International Nuclear Information System (INIS)

    Strufe, N.

    2009-10-01

    The report describes experiences gathered from the decommissioning of DR 2. The experiences encompasses planning and management of the project, methods of accomplishment, and various materials categories. Additionally, the report describes the experience with specific tools used in the project

  7. Dr. Ted Trimble: Why I Do Cancer Research

    Science.gov (United States)

    In a video, Dr. Ted Trimble talks about the importance of cancer research. World Cancer Research Day commemorates the important role research and cancer researchers play in reducing the global burden of cancer.

  8. Grading diabetic retinopathy (DR using the Scottish grading protocol

    Directory of Open Access Journals (Sweden)

    Sonia Zachariah

    2016-04-01

    Full Text Available Although traditionally the features of DR have been identified through direct ophthalmoscopy or slit lamp biomicroscopy, digital photography is more sensitive than direct ophthalmoscopy and is comparable to slit lamp examination by a trained observer.

  9. Dr. Omalu Talks Childhood, Concussions, and CTE | Poster

    Science.gov (United States)

    Dr. Bennet Omalu, the famed forensic pathologist who discovered Chronic Traumatic Encephalopathy (CTE), recently spoke at NCI at Frederick about his upbringing as well as the trials he faced while working to educate the NFL about CTE.

  10. Dr Abraham Pais, 82, physicist and science historian dies

    CERN Document Server

    Glanz, J

    2000-01-01

    Obituary of Dr. Pais who died of heart failure in Copenhagen. He helped build the conceptual foundations of particle physics and then became a science historian, writing a critically acclaimed biography of Einstein (1 pg).

  11. Total anomalous pulmonary venous return

    Science.gov (United States)

    ... pulmonary venous return, x-ray References Fraser CD, Kane LC. Congenital heart disease. In: Townsend CM Jr, ... 62. Review Date 10/17/2017 Updated by: Michael A. Chen, MD, PhD, Associate Professor of Medicine, ...

  12. Return Migration and Working Choices

    OpenAIRE

    TANI, Massimiliano; MAHUTEAU, Stéphane

    2008-01-01

    Collective Action to Support the Reintegration of Return Migrants in their Country of Origin (MIREM) This paper uses the recent survey carried out in the framework of the MIREM project on returnees to Algeria, Morocco and Tunisia and studies the duration of emigration and the labour force status upon returning. The results suggest that age and the year of emigration play a central role in the migration decision, but they do not support the hypothesis that the duration of migration is deter...

  13. Capital Structure and Stock Returns

    OpenAIRE

    Ivo Welch

    2002-01-01

    U.S. corporations do not issue and repurchase debt and equity to counteract the mechanistic effects of stock returns on their debt-equity ratios. Thus over one- to five-year horizons, stock returns can explain about 40 percent of debt ratio dynamics. Although corporate net issuing activity is lively and although it can explain 60 percent of debt ratio dynamics (long-term debt issuing activity being most capital structurerelevant), corporate issuing motives remain largely a mystery. When stock...

  14. [Organising a successful return home].

    Science.gov (United States)

    Mézière, Anthony

    Discharge from hospital is a major component of the quality and efficiency of the healthcare system. The failures of the return home of elderly people testify to the difficulties of applying guidelines in the area of hospital discharge. The action plan decided in the hospital for a successful return home can be jeopardised for personal, relational, functional and structural reasons originating from the different players involved in the hospital discharge. Copyright © 2018 Elsevier Masson SAS. All rights reserved.

  15. Portrait of Dr. Von Braun with Walt Disney, 1954.

    Science.gov (United States)

    1954-01-01

    Marshall Center Director Dr. Wernher Von Braun is pictured with Walt Disney during a visit to the Marshall Space Flight Center in 1954. In the 1950s, Dr. Von Braun while working in California on the Saturn project, also worked with Disney studios as a technical director in making three films about Space Exploration for television. Disney's tour of Marshall in 1965 was Von Braun's hope for a renewed public interest in the future of the Space Program at NASA.

  16. The research contributions of Dr. Paul Van Deusen

    Science.gov (United States)

    Thomas B. Lynch; Francis A. Roesch; John Paul McTague; Jeffrey H. Gove; Gregory A. Reams; Aaron R. Weiskittel

    2015-01-01

    Dr. Paul Van Deusen’s recent passing concluded a rich 30+-year research career dedicated to development and implementation of quantitative methods for forestry and natural resources. Since the early part of his career as a biometrician with the USDA Forest Service Southern Research Station in the 1980s-1990s and continuing with his later employment at NCASI, Dr. Van...

  17. Dr. David Syz, State Secretary for Economic Affairs, Switzerland

    CERN Multimedia

    Maximilien Brice

    2003-01-01

    Dr. David Syz, State Secretary for Economic Affairs, Switzerland is seen here (seventh from right) visiting the assembly hall for the ATLAS experiment during his recent visit to CERN. To his right is Dr. Peter Jenni (blue shirt), spokesperson for the ATLAS Collaboration. The horizontal metal cylinder behind the group is one of the eight vacuum vessels for the superconducting coils of the ATLAS barrel toroid magnet system.

  18. [Sexuality education on the Internet : From Dr. Sommer to Dr. Google].

    Science.gov (United States)

    Döring, Nicola

    2017-09-01

    Female and male adolescents in Germany are increasingly using the Internet to find information about sexuality and sexual health. This review paper summarizes what we know about the status quo of online sexuality education in Germany.Based on a systematic literature review including 40 papers from international, peer-reviewed journals spanning 2010-2017, this paper first describes different aspects of the sexuality-related online search behavior of adolescents: its prevalence, predictors, topics and contexts. One main finding is the fact that adolescents use a computer or smartphone to type their sexuality-related questions into the search engine Google or the search engine of the video platform YouTube.Based on 54 online searches, this paper subsequently presents the kind of sexuality-related online content adolescents find if they ask "Dr. Google" for sexual advice; a collection of 1236 authentic sexuality-related questions of adolescents was used for this analysis. It turned out that online sexuality education offered by leading professional organizations like the BZgA ("Bundeszentrale für gesundheitliche Aufklärung") or pro familia was nearly invisible, while numerous other providers of online sex education consistently appeared in the top Google search results. Among them were the "Dr. Sommer" team of the youth magazine Bravo; online healthcare and advice portals; online forums; the online encyclopedia Wikipedia and, above all, sex education channels on YouTube. In this paper, the latter are presented in more detail for the first time.The third part of the paper addresses the quality of online sexual education over four main areas of quality evaluation. The presentation of the status quo ends with some recommendations both for future research and for sexuality education in practice.

  19. Dr. Tulp's Anatomy Lesson by Rembrandt: the third day hypothesis.

    Science.gov (United States)

    Afek, Arnon; Friedman, Tal; Kugel, Chen; Barshack, Iris; Lurie, Doron J

    2009-07-01

    An autopsy was an important event in 17th century Holland. Autopsies were held in an 'anatomy theater' and performed according to a fixed protocol that often took up to 3 days to complete. Of the five group portraits painted by Rembrandt over the course of his career, two were anatomy lessons given by Dr. Tulp and Dr. Deyman. An examination of Rembrandt's painting Dr. Tulp's Anatomy Lesson (1632) and an X-ray image of the painting, as compared to other paintings of anatomy lessons from the same period, reveal interesting differences, such as positioning, and light and shadow. Not only was the autopsy not performed according to the usual protocol, but in this painting Rembrandt created a unique dramatic scene in his effort to tell a story. We suggest that Dr. Tulp and Rembrandt "modified" the painting of Dr. Tulp's anatomy lesson to emphasize Dr. Tulp's position as the greatest anatomist of his era--"Vesalius of Amsterdam," and as a way of demonstrating God's greatness by highlighting the hand as a symbol of the most glorious of God's creations.

  20. [Dr. Joseph Chazanowicz (1844-1919) and the National Library in Jerusalem].

    Science.gov (United States)

    Ohry, Avi

    2014-01-01

    Dr. Joseph Chazanowicz (1844-1919), was a Russian physician, and founder of the Jewish National Library in JerusaLem. After completing his studies at the Jewish school and at the gymnasium of Grodno, Chazanowicz went to Königsberg, Germany to study medicine and finished his studies in 1872. Returning to Russia, he began to practice at Byelostok's Jewish hospital. Chazanowicz founded the Hovevei Ziyyon ["Lovers of Zion"] society and also the Linat Ha-Zedek ("Hospice for the Poor")--caring for the poor. In 1890 he visited Palestine and conceived the idea of founding a library in Jerusalem, together with the B'nai B'rith organization. In 1896 he sent his large collection of books, amounting to nearly 10,000 volumes, to Jerusalem as the beginning of the Abarbanel library. The enlargement of this library and the collection of funds to erect a special building for it became the life-work of Chazanowicz.

  1. Prof dr Pasquale Pistone soovitab direktiive vahetult kohaldada / Pasquale Pistone ; interv. Erki Uustalu

    Index Scriptorium Estoniae

    Pistone, Pasquale

    2005-01-01

    Intervjuu Salerno Ülikooli teaduskonna dotsendiga, kes õpetas Eesti ametnikele Euroopa Kohtu pretsedendiõigust otseste maksude valdkonnas. Lisatud kommentaarid: Reimer, Ekkehart. Euroopa maksutaeva tõusev täht ; Uustalu, Erki. Särav isiksus, suurepärane suhtleja ; Pahapill Helen. Väljapaistev õigusteadlane ja hinnatud õppejõud. Lisatud ka Pasquale Pristone elulugu

  2. Kuidas rasketel hetkedel käitud, kellelt nõu küsid? / Erko Karing, Monika Peetson, Helen Sildna... [jt.

    Index Scriptorium Estoniae

    2010-01-01

    Küsimusele vastavad Guvatraki reklaamibüroo juht Erko Karing, audiitor- ja finantsnõustamisfirma Deloitte vandeaudiitor Monika Peetson, muusikapeo Tallinn Music Week peakorraldaja ja ettevõtte MUsicCase omanik Helen Sildna, ETL-Baltic Groupi juhatuse esimees ja üks loojatest Krista Mulenok, Eesti Posti e-arvete operaatori eArvekeskus juht Marius Arrak ning firma Sailinvest omanik Jaanus Tamme

  3. Volume celebrating the 60th birthday of Professor Dr. Franz Fie; Professor Dr. Franz Fiedler zum 60. Geburtstag

    Energy Technology Data Exchange (ETDEWEB)

    Beheng, K.D. [ed.

    1998-01-01

    This report was compiled in honor of Professor Dr. Franz Fiedler on the occasion of his 60th birthday on 7 January 1998. Its contributions deal with mesoscale modelling, the propagation of air pollutants, measurements of precipitation using radar, and prediction models. (orig./KW) [Deutsch] Dieser Bericht wurde aus Anlass des 60. Geburtstags von Herrn Prof. Dr. Franz Fiedler am 7. Januar 1998 zusammengestellt. Die Beitraege behandeln mesoskalige Modellierung, Ausbreitung von Luftschadstoffen, Niederschlagsmessung mit Radar und Vorhersagemodelle. (orig.)

  4. Teaching medicine with the help of "Dr. House".

    Science.gov (United States)

    Jerrentrup, Andreas; Mueller, Tobias; Glowalla, Ulrich; Herder, Meike; Henrichs, Nadine; Neubauer, Andreas; Schaefer, Juergen R

    2018-01-01

    TV series such as "House MD", "Grey´s Anatomy" or "Emergency Room" are well perceived by medical students. Seminars featuring medical TV series such as "House MD" might serve as door-opener to attract medical students to learn more about rare diseases. The TV series "House MD" is troublesome for the main character Dr. House is an excellent diagnostician but at the same time a rather misanthropic person. Therefore, lecturing medicine with the help of "House MD" requires constant evaluation. From 2008 to 2016 we are using the well-known TV series "House MD" continuously to attract medical students and teach them about rare diseases as well as diagnostic strategies. We collected from 213 students a detailed questionnaire assessing their learning experience. 76.6% of our students (n = 157) reported to watching medical dramas on a regular basis. The Dr. House seminar was compared to traditional seminars and our students reported an improved learning effect (69.9%), better concentration (89.7%), higher motivation to participate (88.7%), and more fun (86.7%) (all pHouse's behavior quite critically. Likert assessment on a 5-point scale identified strong disagreement with Dr. House´s interpersonal skills in dealing with his colleagues (median = 1) and patients (median = 1). At the same time, the students strongly agreed with his outstanding diagnostic (median = 5) and therapeutic capabilities (median = 4). Medical students visiting a Dr. House teaching seminar are highly motivated to learn more about rare diseases. They were positively influenced by TV series such as Dr. House to improve their diagnostic and clinical skills. At the same time, they are critical enough not to see Dr. House as a role model for their own personality. Well performed medical TV shows such as Dr. House can successfully be used in an educational setting to motivate medical students to come into seminars to learn more about rare diseases.

  5. Sealed Planetary Return Canister (SPRC), Phase II

    Data.gov (United States)

    National Aeronautics and Space Administration — Sample return missions have primary importance in future planetary missions. A basic requirement is that samples be returned in pristine, uncontaminated condition,...

  6. Introductory statement by Dr. Rainer Ibowski

    International Nuclear Information System (INIS)

    Ibowski, Rainer

    1989-01-01

    An intelligent dialogue needs a basis, i.e. a common language, a joint interest in reaching agreements, and a consensus on common and mutually accepted targets. One tact is immediately evident, the basis o dialogue varied during the last decades. The sixties were characterized by a technical and objective formulation of questions: people wanted to understand nuclear power and its peaceful utilization. During the seventies this discussion was slowly replaced by a dialogue about the necessity and impacts of nuclear power: people wanted to understand the social role of nuclear issues. From that time on nuclear industry became the example by means of which the structure and the development of the national and the international society have been discussed. The beginning of the eighties showed a slight return to a balanced dialogue up to the shock of Chernobyl which pushed the social discussion to a new peak. 'New uncovering', most of them exaggerated and irrelevant, gave no chance to come back to an objective dialogue thus far. The nuclear community certainly notified this development. Public relations strategies tried to deal with the changing public interest from purely technical questions to those related to the human society and the standard of values. But apart from a certain time lag a severe handicap appeared: a common language was missing. Dialogue will only have a future chance (at least with a broad majority of people) if the pros and cons of nuclear power mutually agree upon a common and essential assumption underlining all different approaches: mankind has to improve the conditions of life on our limited globe in order to meet the threatening challenges of the future. How can one trigger this process towards a new confidence? The problem is two-fold. (1) The modified standard of values in our saturated industrialized countries leads to a low awareness for material precautions of life. Nevertheless, nuclear power is such a material precaution. Thus, one has

  7. Editing for performance: Dr Johnson and the stage Editing for performance: Dr Johnson and the stage

    Directory of Open Access Journals (Sweden)

    Peter Hollland

    2008-04-01

    Full Text Available I want to begin by quoting one of Dr Johnson’s notes on Hamlet, a passage that, though entirely characteristic, may be less than familiar to many. Johnson is commenting on the punctuation of a passage and is concerned about a sequence of dashes towards the end of the play: To a literary friend of mine I am indebted for the following very acute observation: “Throughout this play,” says he, “there is nothing more beautiful than these dashes; by their gradual elongation, they distinctly mark the balbuciation and the increasing difficulty of utterance observable in a dying man.” To which let me add, that, although dashes are in frequent use with our tragic poets, yet they are seldom introduced with so good an effect as in the present instance. (qtd. in Wells 1: 69 Johnson’s reliance on others—and their cloaked identity—is something we are used to. So too Johnson’s yearning here both to generalize about tragic practice and to praise the particular local effect in Shakespeare can be paralleled frequently elsewhere. I want to begin by quoting one of Dr Johnson’s notes on Hamlet, a passage that, though entirely characteristic, may be less than familiar to many. Johnson is commenting on the punctuation of a passage and is concerned about a sequence of dashes towards the end of the play: To a literary friend of mine I am indebted for the following very acute observation: “Throughout this play,” says he, “there is nothing more beautiful than these dashes; by their gradual elongation, they distinctly mark the balbuciation and the increasing difficulty of utterance observable in a dying man.” To which let me add, that, although dashes are in frequent use with our tragic poets, yet they are seldom introduced with so good an effect as in the present instance. (qtd. in Wells 1: 69 Johnson’s reliance on others—and their cloaked identity—is something we are used to. So too Johnson’s yearning here both to

  8. Abnormal Returns and Contrarian Strategies

    Directory of Open Access Journals (Sweden)

    Ivana Dall'Agnol

    2003-12-01

    Full Text Available We test the hypothesis that strategies which are long on portfolios of looser stocks and short on portfolios of winner stocks generate abnormal returns in Brazil. This type of evidence for the US stock market was interpreted by The Bondt and Thaler (1985 as reflecting systematic evaluation mistakes caused by investors overreaction to news related to the firm performance. We found evidence of contrarian strategies profitability for horizons from 3 months to 3 years in a sample of stock returns from BOVESPA and SOMA from 1986 to 2000. The strategies are more profitable for shorter horizons. Therefore, there was no trace of the momentum effect found by Jagadeesh and Titman (1993 for the same horizons with US data. There are remaing unexplained positive returns for contrarian strategies after accounting for risk, size, and liquidity. We also found that the strategy profitability is reduced after the Real Plan, which suggests that the Brazilian stock market became more efficient after inflation stabilization.

  9. Overall properties of the Gaia DR1 reference frame

    Science.gov (United States)

    Liu, N.; Zhu, Z.; Liu, J.-C.; Ding, C.-Y.

    2017-03-01

    Aims: The first Gaia data release (Gaia DR1) provides 2191 ICRF2 sources with their positions in the auxiliary quasar solution and five astrometric parameters - positions, parallaxes, and proper motions - for stars in common between the Tycho-2 catalogue and Gaia in the joint Tycho-Gaia astrometric solution (TGAS). We aim to analyze the overall properties of Gaia DR1 reference frame. Methods: We compare quasar positions of the auxiliary quasar solution with ICRF2 sources using different samples and evaluate the influence on the Gaia DR1 reference frame owing to the Galactic aberration effect over the J2000.0-J2015.0 period. Then we estimate the global rotation between TGAS with Tycho-2 proper motion systems to investigate the property of the Gaia DR1 reference frame. Finally, the Galactic kinematics analysis using the K-M giant proper motions is performed to understand the property of Gaia DR1 reference frame. Results: The positional comparison between the auxiliary quasar solution and ICRF2 shows negligible orientation and validates the declination bias of -0.1mas in Gaia quasar positions with respect to ICRF2. Galactic aberration effect is thought to cause an offset 0.01mas of the Z axis direction of Gaia DR1 reference frame. The global rotation between TGAS and Tycho-2 proper motion systems, obtained by different samples, shows a much smaller value than the claimed value 0.24mas yr-1. For the Galactic kinematics analysis of the TGAS K-M giants, we find possible non-zero Galactic rotation components beyond the classical Oort constants: the rigid part ωYG = -0.38±0.15mas yr-1 and the differential part ω^primeYG = -0.29±0.19mas yr-1 around the YG axis of Galactic coordinates, which indicates possible residual rotation in Gaia DR1 reference frame or problems in the current Galactic kinematical model. Conclusions: The Gaia DR1 reference frame is well aligned to ICRF2, and the possible influence of the Galactic aberration effect should be taken into consideration

  10. Isotopic insights into the degassing and secondary hydration of volcanic glass from the 1980 eruptions of Mount St. Helens

    Science.gov (United States)

    Seligman, Angela N.; Bindeman, Ilya; Van Eaton, Alexa; Hoblitt, Richard

    2018-04-01

    Abstract The magmatic degassing history of newly erupted volcanic glass is recorded in its remaining volatile content. However, this history is subsequently overprinted by post-depositional (secondary) hydration, the rates and origins of which are not yet adequately constrained. Here, we present the results of a natural experiment using products of the 1980 eruptions of Mount St. Helens. We measured water concentration, δDglass, and δ18OBSG (δ18O of the bulk silicate glass) of samples collected during the dry summer months of 1980 and compared them with material resampled in 2015 from the same deposits. Samples collected from the subsurface near gas escape pipes show elevated water concentrations (near 2.0 wt%), and these are associated with lower δDglass (- 110 to - 130‰) and δ18OBSG (6.0 to 6.6‰) values than the 1980 glass (- 70 to - 100‰ and 6.8 to 6.9‰, respectively). Samples collected in 2015 from the surface to 10-cm subsurface of the 1980 summer deposits have a small increase in average water contents of 0.1-0.2 wt% but similar δ18OBSG (6.8-6.9‰) values compared to the 1980 glass values. These samples, however, show 15‰ higher δDglass values; exchange with meteoric water is expected to yield lower δDglass values. We attribute higher δDglass values in the upper portion of the 1980 deposits collected in 2015 to rehydration by higher δD waters that were degassed for several months to a year from the hot underlying deposits, which hydrated the overlying deposits with relatively high δD gases. Our data also contribute to magmatic degassing of crystal-rich volcanoes. Using the 1980 samples, our reconstructed δD-H2O trends for the dacitic Mount St. Helens deposits with rhyolitic groundmass yield a trend that overlaps with the degassing trend for crystal-poor rhyolitic eruptions studied previously elsewhere, suggesting similar behavior of volatiles upon exsolution from magma. Furthermore, our data support previous studies proposing that

  11. Long-term autonomous volcanic gas monitoring with Multi-GAS at Mount St. Helens, Washington, and Augustine Volcano, Alaska

    Science.gov (United States)

    Kelly, P. J.; Ketner, D. M.; Kern, C.; Lahusen, R. G.; Lockett, C.; Parker, T.; Paskievitch, J.; Pauk, B.; Rinehart, A.; Werner, C. A.

    2015-12-01

    In recent years, the USGS Volcano Hazards Program has worked to implement continuous real-time in situ volcanic gas monitoring at volcanoes in the Cascade Range and Alaska. The main goal of this ongoing effort is to better link the compositions of volcanic gases to other real-time monitoring data, such as seismicity and deformation, in order to improve baseline monitoring and early detection of volcanic unrest. Due to the remote and difficult-to-access nature of volcanic-gas monitoring sites in the Cascades and Alaska, we developed Multi-GAS instruments that can operate unattended for long periods of time with minimal direct maintenance from field personnel. Our Multi-GAS stations measure H2O, CO2, SO2, and H2S gas concentrations, are comprised entirely of commercial off-the-shelf components, and are powered by small solar energy systems. One notable feature of our Multi-GAS stations is that they include a unique capability to perform automated CO2, SO2, and H2S sensor verifications using portable gas standards while deployed in the field, thereby allowing for rigorous tracking of sensor performances. In addition, we have developed novel onboard data-processing routines that allow diagnostic and monitoring data - including gas ratios (e.g. CO2/SO2) - to be streamed in real time to internal observatory and public web pages without user input. Here we present over one year of continuous data from a permanent Multi-GAS station installed in August 2014 in the crater of Mount St. Helens, Washington, and several months of data from a station installed near the summit of Augustine Volcano, Alaska in June 2015. Data from the Mount St. Helens Multi-GAS station has been streaming to a public USGS site since early 2015, a first for a permanent Multi-GAS site. Neither station has detected significant changes in gas concentrations or compositions since they were installed, consistent with low levels of seismicity and deformation.

  12. Dynamic returns of beta arbitrage

    OpenAIRE

    Nascimento, Mafalda

    2017-01-01

    This thesis studies the patterns of the abnormal returns of the beta strategy. The topic can be helpful for professional investors, who intend to achieve a better performance in their portfolios. Following the methodology of Lou, Polk, & Huang (2016), the COBAR measure is computed in order to determine the levels of beta arbitrage in the market in each point in time. It is argued that beta arbitrage activity can have impact on the returns of the beta strategy. In fact, it is demonstrated that...

  13. Sovereign Risk and Currently Returns

    DEFF Research Database (Denmark)

    Della Corte, Pasquale; Sarno, Lucio; Schmeling, Maik

    We empirically investigate the relation between sovereign risk and exchange rates for a broad set of currencies. An increase in the credit default swap (CDS) spread of a country is accompanied by a significant depreciation of the exchange rate. More generally, CDS spread changes have substantial...... explanatory power for currency returns which is largely driven by shocks to global credit risk. Consistent with the notion that sovereign risk is priced, we find that a country's exposure to global credit risk forecasts excess returns to trading exchange rates as well as to trading on the volatility, skewness...

  14. Sovereign Risk and Currency Returns

    DEFF Research Database (Denmark)

    Della Corte, Pasquale; Sarno, Lucio; Schmeling, Maik

    We empirically investigate the relation between sovereign risk and exchange rates for a broad set of currencies. An increase in the credit default swap (CDS) spread of a country is accompanied by a significant depreciation of the exchange rate. More generally, CDS spread changes have substantial...... explanatory power for currency returns which is largely driven by shocks to global credit risk. Consistent with the notion that sovereign risk is priced, we find that a country's exposure to global credit risk forecasts excess returns to trading exchange rates as well as to trading on the volatility, skewness...

  15. Managing public and media response to a reawakening volcano: lessons from the 2004 eruptive activity of Mount St. Helens: Chapter 23 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

    Science.gov (United States)

    Frenzen, Peter M.; Matarrese, Michael T.; Sherrod, David R.; Scott, William E.; Stauffer, Peter H.

    2008-01-01

    Volcanic eruptions and other infrequent, large-scale natural disturbances pose challenges and opportunities for public-land managers. In the days and weeks preceding an eruption, there can be considerable uncertainty surrounding the magnitude and areal extent of eruptive effects. At the same time, public and media interest in viewing developing events is high and concern for public safety on the part of local land managers and public safety officials is elevated. Land managers and collaborating Federal, State, and local officials must decide whether evacuations or restrictions to public access are necessary, the appropriate level of advance preparation, and how best to coordinate between overlapping jurisdictions. In the absence of a formal Federal or State emergency declaration, there is generally no identified source of supplemental funding for emergency-response preparation or managing extraordinary public and media response to developing events. In this chapter, we examine responses to escalating events that preceded the 2004 Mount St. Helens eruption and changes in public perception during the extended period of the largely nonexplosive, dome-building eruption that followed. Lessons learned include the importance of maintaining up-to-date emergency-response plans, cultivating close working relationships with collaborating agencies, and utilizing an organized response framework that incorporates clearly defined roles and responsibilities and effective communication strategies.

  16. Use of thermal infrared imaging for monitoring renewed dome growth at Mount St. Helens, 2004: Chapter 17 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

    Science.gov (United States)

    Schneider, David J.; Vallance, James W.; Wessels, Rick L.; Logan, Matthew; Ramsey, Michael S.; Sherrod, David R.; Scott, William E.; Stauffer, Peter H.

    2008-01-01

    A helicopter-mounted thermal imaging radiometer documented the explosive vent-clearing and effusive phases of the eruption of Mount St. Helens in 2004. A gyrostabilized gimbal controlled by a crew member housed the radiometer and an optical video camera attached to the nose of the helicopter. Since October 1, 2004, the system has provided thermal and video observations of dome growth. Flights conducted as frequently as twice daily during the initial month of the eruption monitored rapid changes in the crater and 1980-86 lava dome. Thermal monitoring decreased to several times per week once dome extrusion began. The thermal imaging system provided unique observations, including timely recognition that the early explosive phase was phreatic, location of structures controlling thermal emissions and active faults, detection of increased heat flow prior to the extrusion of lava, and recognition of new lava extrusion. The first spines, 1 and 2, were hotter when they emerged (maximum temperature 700-730°C) than subsequent spines insulated by as much as several meters of fault gouge. Temperature of gouge-covered spines was about 200°C where they emerged from the vent, and it decreased rapidly with distance from the vent. The hottest parts of these spines were as high as 500-730°C in fractured and broken-up regions. Such temperature variation needs to be accounted for in the retrieval of eruption parameters using satellite-based techniques, as such features are smaller than pixels in satellite images.

  17. Tun Dr. Mahathir’s Leadership Communication: The Confucian Perspective

    Directory of Open Access Journals (Sweden)

    Cheah Joyce Lynn-Sze

    2017-01-01

    Full Text Available Previous studies have provided valuable insights into the impact of culture on the concept of leadership communication. However, only a few studies that focused on exploring and understanding the values of Confucianism and its impact on the Chinese culture, especially in Malaysia. Thus, this study is among the first study to examine the leadership communication from the perspective of Confucianism towards the leadership of Dr. Mahathir from the perspective of the Chinese community in Malaysia. This study aims to assess the role of Confucian values in Dr. Mahathir’s leadership communication. This study interviewed 15 Chinese leaders. The findings reveal that three main Confucian values are relevant to Dr. Mahathir’s leadership communication. The Confucian values are Zhi (wisdom, Xin (trust and Xiao (filial piety. This study provides a new perspective on leadership communication from the context of cultural diversity in Malaysia which emphasizes on Confucian values.

  18. HLA Dr beta 1 alleles in Pakistani patients with rheumatoid arthritis

    International Nuclear Information System (INIS)

    Naqi, N.; Ahmed, T.A.; Bashir, M.M.

    2011-01-01

    Objective: To determine frequencies of HLA DR beta 1 alleles in rheumatoid arthritis in Pakistani patients. Study Design: Cross sectional / analytical study. Place and Duration of Study: Department of Immunology, Armed Forces Institute of Pathology, Rawalpindi in collaboration with Rheumatology departments of Military Hospital, Rawalpindi and Fauji Foundation Hospital, Rawalpindi, from January 2009 to January 2010. Methodology: HLA DR beta 1 genotyping of one hundred Pakistani patients, diagnosed as having RA as per American College of Rheumatology revised criteria 1987, was done. HLA DR beta 1 genotyping was carried out at allele group level (DR beta 1*01-DR beta 1*16) by sequence specific primers in RA patients. Comparison of HLA DR beta 1 allele frequencies between patients and control groups was made using Pearson's chi-square test to find possible association of HLA DR?1 alleles with RA in Pakistani rheumatoid patients. Results: HLA DR beta 1*04 was expressed with significantly increased frequency in patients with rheumatoid arthritis (p <0.05). HLA DR?1*11 was expressed statistically significantly more in control group as compared to rheumatoid patients indicating a possible protective effect. There was no statistically significant difference observed in frequencies of HLA DR beta 1 allele *01, DR beta 1 allele *03, DR beta 1 allele *07, DR beta 1 allele *08, DR beta 1 allele *09, DR beta 1 allele *10, DR beta 1 allele *12, DR beta 1 allele *13, DR beta 1 allele *14, DR?1 allele *15 and DR beta 1 allele *16 between patients and control groups. Conclusion: The identification of susceptible HLA DR beta 1 alleles in Pakistani RA patients may help physicians to make early decisions regarding initiation of early intensive therapy with disease modifying anti rheumatic medicines and biological agents decreasing disability in RA patients. (author)

  19. Professor Bakytzhan Abdiraiym Rector of the L. Gumilov Eurasian National University, Astana, Kazakhstan accompanied by Prof. Kairat Kuterbekov, Dr Bekzat Prmantayeva, Dr Kuralay Maksut with the Director-General, Dr Tadeusz Kurtyka, Adviser for Non-Member States, Mrs Julia Andreeva, Department of Information Technologies and Dr Nikolai Zimine, ATLAS Collaboration, Joint Institute for Nuclear Research, Dubna

    CERN Document Server

    Maximilien Brice

    2011-01-01

    Professor Bakytzhan Abdiraiym Rector of the L. Gumilov Eurasian National University, Astana, Kazakhstan accompanied by Prof. Kairat Kuterbekov, Dr Bekzat Prmantayeva, Dr Kuralay Maksut with the Director-General, Dr Tadeusz Kurtyka, Adviser for Non-Member States, Mrs Julia Andreeva, Department of Information Technologies and Dr Nikolai Zimine, ATLAS Collaboration, Joint Institute for Nuclear Research, Dubna

  20. Comet coma sample return instrument

    Science.gov (United States)

    Albee, A. L.; Brownlee, Don E.; Burnett, Donald S.; Tsou, Peter; Uesugi, K. T.

    1994-01-01

    The sample collection technology and instrument concept for the Sample of Comet Coma Earth Return Mission (SOCCER) are described. The scientific goals of this Flyby Sample Return are to return to coma dust and volatile samples from a known comet source, which will permit accurate elemental and isotopic measurements for thousands of individual solid particles and volatiles, detailed analysis of the dust structure, morphology, and mineralogy of the intact samples, and identification of the biogenic elements or compounds in the solid and volatile samples. Having these intact samples, morphologic, petrographic, and phase structural features can be determined. Information on dust particle size, shape, and density can be ascertained by analyzing penetration holes and tracks in the capture medium. Time and spatial data of dust capture will provide understanding of the flux dynamics of the coma and the jets. Additional information will include the identification of cosmic ray tracks in the cometary grains, which can provide a particle's process history and perhaps even the age of the comet. The measurements will be made with the same equipment used for studying micrometeorites for decades past; hence, the results can be directly compared without extrapolation or modification. The data will provide a powerful and direct technique for comparing the cometary samples with all known types of meteorites and interplanetary dust. This sample collection system will provide the first sample return from a specifically identified primitive body and will allow, for the first time, a direct method of matching meteoritic materials captured on Earth with known parent bodies.

  1. Phobos Sample Return: Next Approach

    Science.gov (United States)

    Zelenyi, Lev; Martynov, Maxim; Zakharov, Alexander; Korablev, Oleg; Ivanov, Alexey; Karabadzak, George

    The Martian moons still remain a mystery after numerous studies by Mars orbiting spacecraft. Their study cover three major topics related to (1) Solar system in general (formation and evolution, origin of planetary satellites, origin and evolution of life); (2) small bodies (captured asteroid, or remnants of Mars formation, or reaccreted Mars ejecta); (3) Mars (formation and evolution of Mars; Mars ejecta at the satellites). As reviewed by Galimov [2010] most of the above questions require the sample return from the Martian moon, while some (e.g. the characterization of the organic matter) could be also answered by in situ experiments. There is the possibility to obtain the sample of Mars material by sampling Phobos: following to Chappaz et al. [2012] a 200-g sample could contain 10-7 g of Mars surface material launched during the past 1 mln years, or 5*10-5 g of Mars material launched during the past 10 mln years, or 5*1010 individual particles from Mars, quantities suitable for accurate laboratory analyses. The studies of Phobos have been of high priority in the Russian program on planetary research for many years. Phobos-88 mission consisted of two spacecraft (Phobos-1, Phobos-2) and aimed the approach to Phobos at 50 m and remote studies, and also the release of small landers (long-living stations DAS). This mission implemented the program incompletely. It was returned information about the Martian environment and atmosphere. The next profect Phobos Sample Return (Phobos-Grunt) initially planned in early 2000 has been delayed several times owing to budget difficulties; the spacecraft failed to leave NEO in 2011. The recovery of the science goals of this mission and the delivery of the samples of Phobos to Earth remain of highest priority for Russian scientific community. The next Phobos SR mission named Boomerang was postponed following the ExoMars cooperation, but is considered the next in the line of planetary exploration, suitable for launch around 2022. A

  2. Dr. William O. Coffee and his absorption cure for cataract.

    Science.gov (United States)

    Ferry, A P

    1989-08-01

    Dr. William O. Coffee was an ophthalmologist who conducted an office and mail-order practice in the Midwest from the 1880s until 1927. His main stock in trade was a self-discovered absorption cure for a variety of ocular diseases, with particular emphasis on the medical cure of cataracts. Dr. Coffee's career was a checkered one, marked by dubious credentials, exuberant self-promotion, unlikely and exaggerated claims of medical successes, plagiarism, and rejection by the medical "establishment." Certain parallels may be drawn between his activities and some currently observed practices in ophthalmology.

  3. Dr Jacob van der Land, marine biologist extraordinary

    OpenAIRE

    Bruggen, van, A.C.

    2001-01-01

    This contribution is an attempt to sketch the life and works of Dr Jacob van der Land, curator of worms and chief marine biologist of the National Museum of Natural History, on the occasion of his official retirement. Born in 1935, Jacob van der Land read biology at Leiden University (1958-1964), where he obtained his Ph.D. in 1970 on a treatise on the Priapulida under the supervision of Prof. Dr L.D. Brongersma. In 1964 he was appointed curator of worms in the museum. Later on he took over l...

  4. Rapid, low-cost photogrammetry to monitor volcanic eruptions: an example from Mount St. Helens, Washington, USA

    Science.gov (United States)

    Diefenbach, Angela K.; Crider, Juliet G.; Schilling, Steve P.; Dzurisin, Daniel

    2012-01-01

    We describe a low-cost application of digital photogrammetry using commercially available photogrammetric software and oblique photographs taken with an off-the-shelf digital camera to create sequential digital elevation models (DEMs) of a lava dome that grew during the 2004–2008 eruption of Mount St. Helens (MSH) volcano. Renewed activity at MSH provided an opportunity to devise and test this method, because it could be validated against other observations of this well-monitored volcano. The datasets consist of oblique aerial photographs (snapshots) taken from a helicopter using a digital single-lens reflex camera. Twelve sets of overlapping digital images of the dome taken during 2004–2007 were used to produce DEMs and to calculate lava dome volumes and extrusion rates. Analyses of the digital images were carried out using photogrammetric software to produce three-dimensional coordinates of points identified in multiple photos. The evolving morphology of the dome was modeled by comparing successive DEMs. Results were validated by comparison to volume measurements derived from traditional vertical photogrammetric surveys by the US Geological Survey Cascades Volcano Observatory. Our technique was significantly less expensive and required less time than traditional vertical photogrammetric techniques; yet, it consistently yielded volume estimates within 5% of the traditional method. This technique provides an inexpensive, rapid assessment tool for tracking lava dome growth or other topographic changes at restless volcanoes.

  5. Volcanic tremor masks its seismogenic source: Results from a study of noneruptive tremor recorded at Mount St. Helens, Washington

    Science.gov (United States)

    Denlinger, Roger P.; Moran, Seth C.

    2014-01-01

    On 2 October 2004, a significant noneruptive tremor episode occurred during the buildup to the 2004–2008 eruption of Mount St. Helens (Washington). This episode was remarkable both because no explosion followed, and because seismicity abruptly stopped following the episode. This sequence motivated us to consider a model for volcanic tremor that does not involve energetic gas release from magma but does involve movement of conduit magma through extension on its way toward the surface. We found that the tremor signal was composed entirely of Love and Rayleigh waves and that its spectral bandwidth increased and decreased with signal amplitude, with broader bandwidth signals containing both higher and lower frequencies. Our modeling results demonstrate that the forces giving rise to this tremor were largely normal to conduit walls, generating hybrid head waves along conduit walls that are coupled to internally reflected waves. Together these form a crucial part of conduit resonance, giving tremor wavefields that are largely a function of waveguide geometry and velocity. We find that the mechanism of tremor generation fundamentally masks the nature of the seismogenic source giving rise to resonance. Thus multiple models can be invoked to explain volcanic tremor, requiring that information from other sources (such as visual observations, geodesy, geology, and gas geochemistry) be used to constrain source models. With concurrent GPS and field data supporting rapid rise of magma, we infer that tremor resulted from drag of nearly solid magma along rough conduit walls as magma was forced toward the surface.

  6. The effect of consumers and mutualists of Vaccinium membranaceum at Mount St. Helens: dependence on successional context.

    Directory of Open Access Journals (Sweden)

    Suann Yang

    Full Text Available In contrast to secondary succession, studies of terrestrial primary succession largely ignore the role of biotic interactions, other than plant facilitation and competition, despite the expectation that simplified interaction webs and propagule-dependent demographics may amplify the effects of consumers and mutualists. We investigated whether successional context determined the impact of consumers and mutualists by quantifying their effects on reproduction by the shrub Vaccinium membranaceum in primary and secondary successional sites at Mount St. Helens (Washington, USA, and used simulations to explore the effects of these interactions on colonization. Species interactions differed substantially between sites, and the combined effect of consumers and mutualists was much more strongly negative for primary successional plants. Because greater local control of propagule pressure is expected to increase successional rates, we evaluated the role of dispersal in the context of these interactions. Our simulations showed that even a small local seed source greatly increases population growth rates, thereby balancing strong consumer pressure. The prevalence of strong negative interactions in the primary successional site is a reminder that successional communities will not exhibit the distribution of interaction strengths characteristic of stable communities, and suggests the potential utility of modeling succession as the consequence of interaction strengths.

  7. Large-scale magnetic field perturbation arising from the 18 May 1980 eruption from Mount St. Helens, Washington

    Science.gov (United States)

    Mueller, R.J.; Johnston, M.J.S.

    1989-01-01

    A traveling magnetic field disturbance generated by the 18 may 1980 eruption of Mount St. Helens at 1532 UT was detected on an 800-km linear array of recording magnetometers installed along the San Andreas fault system in California, from San Francisco to the Salton Sea. Arrival times of the disturbance field, from the most northern of these 24 magnetometers (996 km south of the volcano) to the most southern (1493 km S23?? E), are consistent with the generation of a traveling ionospheric disturbance stimulated by the blast pressure wave in the atmosphere. The first arrivals at the north and the south ends of the array occurred at 26 and 48 min, respectively, after the initial eruption. Apparent average wave velocity through the array is 309 ?? 14 m s-1 but may have approached 600 m s-1 close to the volcano. The horizontal phase and the group velocity of ??? 300 m s-1 at periods of 70-80 min, and the attenuation with distance, strongly suggest that the magnetic field perturbations at distances of 1000-1500 km are caused by gravity mode acoustic-gravity waves propagating at F-region heights in the ionosphere. ?? 1989.

  8. [Notes on the Indian Red Crescent aid and Dr. Ensari's contributions before the decline of the Ottoman Empire].

    Science.gov (United States)

    Izgöer, Ahmet Zeki

    2002-01-01

    This article deals with the Indian Red Crescent aids and Dr. Ahmed Ensari's role in this activity during the wars in the early 20th century that led the Ottoman Empire to dismantle. The Indian Red Crescent presided by Dr. Ensari sent a medical team and sanitary material for the Ottomans battered during the war in Tripoli (1911) and the succeeding war at the Balkans (1912). The article also deals with the meetings of the above-mentioned medical team with the Ottoman statesmen and dignitaries; its success at the Tripoli front and its projects concerning the Ottoman immigrants from the Balkan region. The humanitarian aids of the Indian Red Crescent continued afterwards, especially during the World War II (1914-1918) and the War of Independence (1919-1922). On their return to India, Dr. Ensari and the members of the team held a series of meetings and spoke of their activities to the people in their country. They tried to spread their sympathy for the Ottoman-Turkish people even to the outposts of India. This article is an attempt to describe the sympathy of this brother nation (Pakistan of today) proved by their aids and support far away from their borders.

  9. Dr. Inside and Dr. Outside: Physicists Involved With National Security and Foreign Policy

    Science.gov (United States)

    Zimmerman, Peter D.

    2009-05-01

    Physicists have had a special interest in American national security and arms control since at least the Manhattan Project. They have served our country in uniform and in the career civil service. Some have left academic careers for brief periods to work as political appointees, consultants, or resident scholars and then returned to an academic life, but often with changed goals. Some have tried government life and left nearly immediately, while others dipped a toe in and decided to stay. I will look at real-life examples, mostly using real names, drawn from my career and circle of colleagues to try to explain why some physicists have been extremely successful, why others have not, and what happens to a physicist who moved to Washington and decides to stay. I will also discuss routes into public service for those interesting in giving it a try.

  10. Event coverage: ESMO Asia Congress returns to Singapore

    Directory of Open Access Journals (Sweden)

    Editorial Office

    2016-12-01

    focus on improving current clinical understanding of various tumor types and novel treatment strategies for different tumor subtypes were also prominently featured. In his opening remarks, ESMO President Prof. Fortunato Ciardiello said, “We are glad to be returning to Singapore for the second ESMO Asia Congress. Consolidating activities in Asia underlines the importance ESMO places on collaboration with partners in this region. The program this year will have a strong emphasis on state-of-the-art education and on the current standard of care across all major tumor types.” He continued, “In addition to practical seminars and wide-ranging discussions about how oncologists and other stakeholders can best collaborate for greater treatment results for cancer patients, delegates can look forward to opportunities for interaction with both local experts and key opinion leaders from the international oncology community.” The opening ceremony was graced by the Guest-of-Honor – Dr. Amy Khor, Singapore’s Senior Minister of State for Health. In her speech, Dr. Khor laid emphasis on how events such as the ESMO Asia Congress are essential in providing an open platform to facilitate research collaboration. “To address the challenges presented by the complexity of cancer, the development of regional and international research networks is increasingly important to catalyze scientific communication and collaboration,” she said. To this end, Dr. Khor lauded the partnership between ESMO and the Singapore Society of Oncology in setting up a new office for cancer research aimed at facilitating collaborations between researchers in Europe and Asia — ESMO’s first footprint in Asia. “By building capabilities and strengthening our partnerships, we can do much more to improve patient care and treatment, especially for the Asian population,” she said. Dr. Ravindran Kanesvaran, President of the host organization – Singapore Society of Oncology, echoed the sentiment.

  11. Dr. David Sawyer, Mickey Mouse and Dr. David Brown attend a ceremony at Ronald McNair Middle School

    Science.gov (United States)

    1999-01-01

    Dr. David Sawyer (left), Superintendent of the Brevard County School District, Mickey Mouse, and Dr. David Brown, a NASA astronaut, attend a tribute to NASA astronaut Ronald McNair held in the gymnasium of Ronald McNair Magnet School in Cocoa, Fla. During the tribute, Walt Disney World presented a portrait of McNair to the school, which had previously been renamed for the fallen astronaut. McNair was one of a crew of seven who lost their lives during an accident following launch of the Space Shuttle Challenger in January 1986.

  12. Professor Oberth and Dr. von Braun at ARS Banquet

    Science.gov (United States)

    1961-01-01

    Dr. Wernher von Braun holds the coveted Hermarn Oberth award presented to him by Professor Oberth during the banquet hosted by the Alabama Section of the American Rocket Society (ARS), on October 19, 1961. The Oberth award was given for outstanding technical contributions to the field of astronautics or for the promotion and advancement of astronautical sciences.

  13. Highlight: Dr David Butler-Jones on fighting pandemics | CRDI ...

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

    15 avr. 2016 ... Dr David Butler-Jones, professor in the Faculty of Medicine at the University of Manitoba and former Chief Medical Health Officer of Canada, delivered a lecture on lessons learned from the 2009 flu pandemic in Canada. He also commented on India's draft National Health Policy 2015 at the India ...

  14. Shepard Award Winners, Part 1: Dr. Stephen Thacker

    Centers for Disease Control (CDC) Podcasts

    2009-07-22

    This podcast highlights the accomplishments of Dr. Stephen Thacker, recipient of the prestigious 2009 CDC Charles C. Shepard Award.  Created: 7/22/2009 by Centers for Disease Control and Prevention (CDC).   Date Released: 7/22/2009.

  15. Shepard Award Winners, Part 2: Dr. Tracie Williams

    Centers for Disease Control (CDC) Podcasts

    2009-07-29

    This podcast highlights the accomplishments of Dr. Tracie Williams, recipient of the prestigious 2009 CDC Charles C. Shepard Award.  Created: 7/29/2009 by Centers for Disease Control and Prevention (CDC).   Date Released: 7/29/2009.

  16. Shepard Award Winners, Part 3: Dr. Larissa Roux

    Centers for Disease Control (CDC) Podcasts

    2009-09-22

    This podcast highlights the accomplishments of Dr. Larissa Roux, recipient of the prestigious 2009 CDC Charles C. Shepard Award.  Created: 9/22/2009 by Centers for Disease Control and Prevention (CDC).   Date Released: 9/22/2009.

  17. Researcher Profile: An Interview With Dr. Rebecca J. Travnichek

    Directory of Open Access Journals (Sweden)

    Rebecca J. Travnichek

    2011-04-01

    Full Text Available

    Dr. Rebecca Travnichek is a Family Financial Education Specialist with University of Missouri Extension. Dr. Travnichek currently serves as the Annual Conference Program Chair. She is also very active in the Association for Financial Counseling and Planning Education, where she serves on the Board of Directors. Dr. Travnichek has participated in leadership development programs at the state and national levels. She was involved in the initial proposal development of the Financial Security for All Community of Practice with eXtension and continues to be involved through several roles. She is active in the National Extension Association of Family and Consumer Sciences at the national and state levels, serving in multiple leadership roles. For the past three years, Dr. Travnichek has also served as the Editor of the Journal of the National Extension Association of Family and Consumer Sciences. She represents the type of person who makes the Financial Therapy Association a dynamic organization linking practitioners and academicians.

  18. Rembrandt's anatomy lesson of Dr. Deijman of 1656 dissected

    NARCIS (Netherlands)

    Ijpma, Frank F. A.; Middelkoop, Norbert E.; van Gulik, Thomas M.

    2013-01-01

    More than 350 years ago, Rembrandt painted Anatomy Lesson of Dr. Deijman. This group portrait, featuring important members of the Amsterdam Guild of Surgeons, belongs to the series of paintings of the guild. Rembrandt's masterpiece is one of the most famous historical images of a dissection of the

  19. The Effects of Dr. Oz on Health Behaviors and Attitudes

    Science.gov (United States)

    Crouch, Elizabeth; Dickes, Lori A.; Davis, Amanda; Zarandy, Joy

    2016-01-01

    Background: Consumption of social media has quickly evolved into a primary source of health information for many consumers. This seems to be particularly true for individuals seeking to modify chronic health conditions like weight loss, obesity, and obesity-related diseases. Purpose: This study explores whether watching Dr. Oz weight loss episodes…

  20. Obituary Dr A. W. Kloos (1880—1952)

    NARCIS (Netherlands)

    Ooststroom, van S.J.

    1952-01-01

    At the end of the previous number of “Blumea” could just be inserted the death notice of one of the honorary collaborators of the Rijksherbarium, Dr Ir A. W. Kloos, who passed away in his home at Dordrecht on June 3rd, 1952. A more detailed obituary may follow here. Abraham Willem Kloos was born at

  1. Improving College Students English Learning with Dr. Eye Android Mid

    Science.gov (United States)

    Yang, Ju Yin; Che, Pei-Chun

    2015-01-01

    This paper investigates college students' English language learning through use of Dr. Eye Android handheld mobile Internet device (MID). Compared to related studies, students' English learning using MIDs has not been evaluated and fully understood in the field of higher education. Quantitatively, the researchers used TOEIC pretest and posttest to…

  2. Dr Skateboard's Action Science: Teaching Physics in Context

    Science.gov (United States)

    Robertson, William H.

    2009-01-01

    In order to create student interest and promote new connections to the understanding of fundamental physics concepts, there is a need for new approaches and methods that are both contemporary and relevant. Dr Skateboard's Action Science, a curriculum supplement comprising video instruction and classroom activities, is an example that focuses on…

  3. Dr. Vernon W. Hughes, 81, authority on the subatomic

    CERN Multimedia

    Lavietes, S

    2002-01-01

    "Dr. Vernon W. Hughes, a Yale physicist whose investigation of particles called muons poked holes in standard subatomic theory and provided evidence for the existence of previously undetected matter, died at Yale-New Haven Hospital last Tuesday" (1/2 page).

  4. Dr Jacob van der Land, marine biologist extraordinary

    NARCIS (Netherlands)

    Bruggen, van A.C.

    2001-01-01

    This contribution is an attempt to sketch the life and works of Dr Jacob van der Land, curator of worms and chief marine biologist of the National Museum of Natural History, on the occasion of his official retirement. Born in 1935, Jacob van der Land read biology at Leiden University (1958-1964),

  5. Financial Integration and Asset Returns

    OpenAIRE

    P Martin; H Rey

    2000-01-01

    The paper investigates the impact of financial integration on asset return, risk diversification and breadth of financial markets. We analyse a three-country macroeconomic model in which (i) the number of financial assets is endogenous; (ii) assets are imperfect substitutes; (iii) cross-border asset trade entails some transaction costs; (iv) the investment technology is indivisible. In such an environment, lower transaction costs between two financial markets translate to higher demand for as...

  6. Returning to work after disability.

    Science.gov (United States)

    Quinn, P Roger

    2002-06-01

    After a workplace injury or disability, there is a period of hardship and adjustment for the injured party as well as all stakeholders in the workers' compensation process. Ultimately, however, return to work is considered. The author reviews this often challenging exercise from the Canadian perspective and stresses the need for timely intervention, honest communication, the coordination of information and resources--and the need for flexibility. A case study on low back pain is included.

  7. The Return of the Blue Butterfly

    Science.gov (United States)

    Santos, Anabela

    2014-05-01

    The Return of the Blue Butterfly The English writer Charles Dickens once wrote: "I only ask to be free. The butterflies are free". But are they really? The work that I performed with a group of students from 8th grade, had a starting point of climate change and the implications it has on ecosystems. Joining the passion I have for butterflies, I realized that they are also in danger of extinction due to these climatic effects. Thus, it was easy to seduce my students wanting to know more. Luckily I found Dr. Paula Seixas Arnaldo, a researcher at the University of Trás-os-Montes and Alto Douro, who has worked on butterflies and precisely investigated this issue. Portugal is the southern limit of butterfly-blue (Phengaris alcon), and has been many years in the red book of endangered species. Butterfly-blue is very demanding of their habitat, and disappears very easily if ideal conditions are not satisfied. Increased fragmentation of landscapes and degradation of suitable habitats, are considered the greatest challenges of the conservation of Phengaris butterfly in Portugal. In recent decades, climate change has also changed butterfly-blue spatial distribution with a movement of the species northward to colder locations, and dispersion in latitude. Butterflies of Europe must escape to the North because of the heat. Dr. Paula Seixas Arnaldo and her research team began a project, completed in December 2013, wanted to preserve and restore priority habitats recognized by the European Union to help species in danger of disappearing with increasing temperature. The blue butterfly is extremely important because it is a key indicator of the quality of these habitats. In the field, the butterflies are monitored to collect all possible data in order to identify the key species. Butterflies start flying in early July and cease in late August. Mating takes about an hour and occurs in the first days of life. The gentian-peat (Gentiana pneumonanthe) serves as the host plant for

  8. Tick size and stock returns

    Science.gov (United States)

    Onnela, Jukka-Pekka; Töyli, Juuso; Kaski, Kimmo

    2009-02-01

    Tick size is an important aspect of the micro-structural level organization of financial markets. It is the smallest institutionally allowed price increment, has a direct bearing on the bid-ask spread, influences the strategy of trading order placement in electronic markets, affects the price formation mechanism, and appears to be related to the long-term memory of volatility clustering. In this paper we investigate the impact of tick size on stock returns. We start with a simple simulation to demonstrate how continuous returns become distorted after confining the price to a discrete grid governed by the tick size. We then move on to a novel experimental set-up that combines decimalization pilot programs and cross-listed stocks in New York and Toronto. This allows us to observe a set of stocks traded simultaneously under two different ticks while holding all security-specific characteristics fixed. We then study the normality of the return distributions and carry out fits to the chosen distribution models. Our empirical findings are somewhat mixed and in some cases appear to challenge the simulation results.

  9. PERFORMANCE EVALUATION OF THE IRD RSUP DR. SARDJITO BUILDING TO THE INFLUENCE OF EARTHQUAKE

    Directory of Open Access Journals (Sweden)

    T. S.M. Aritonang

    2012-02-01

    Full Text Available In performance-based design, the level of performance of hospital buildings is generally operational, where the buildings are expected to continue to function after the occurrence of the earthquake and do not undergo significant damage. This research evaluates the level of performance suitability of the Emergency Care Installation Buildings of Dr. Sardjito Hospital (hereinafter referred to as IRD RSUP Dr. Sardjito building for the effects of earthquakes. First evaluation is done by Rapid Visual Screening by FEMA 154 (2002, then continued with more detailed evaluation based on FEMA 310 (1998. The building structure is modeled by SAP2000 and created in 2 models, i.e. the Models with wall and the Models without wall. The earthquake loads refers to SNI 1726-2002. The strength of structural elements is calculated with SNI 2847-2002 and Response-2000. For evaluation of structure performance levels, a pushover analysis used for nonlinear procedures, where the analysis used to the Seismicity region 3 and 4. Performance point is determined by Capacity Spectrum Method based on ATC-40 (1996, which has built-in in the SAP2000 Program. The performance level of the building is determined by drift ratio criteria required by FEMA 356 (2000 as well as ATC-40 (1996. From the research results, it is obtained that the natural period for the Model with wall is 0.592 seconds and 1.687 Hz frequency, and natural period for Model without wall is 1.291 seconds and 0.774 Hz frequency. Therefore, the level of structure performances for earthquake return period of 500 years is immediate occupancy.

  10. Where is the hot rock and where is the ground water – Using CSAMT to map beneath and around Mount St. Helens

    Science.gov (United States)

    Wynn, Jeff; Mosbrucker, Adam; Pierce, Herbert; Spicer, Kurt R.

    2016-01-01

    We have observed several new features in recent controlled-source audio-frequency magnetotelluric (CSAMT) soundings on and around Mount St. Helens, Washington State, USA. We have identified the approximate location of a strong electrical conductor at the edges of and beneath the 2004–08 dome. We interpret this conductor to be hot brine at the hot-intrusive-cold-rock interface. This contact can be found within 50 meters of the receiver station on Spine 5, which extruded between April and July of 2005. We have also mapped separate regional and glacier-dome aquifers, which lie one atop the other, out to considerable distances from the volcano.

  11. Chronology, morphology and stratigraphy of pumiceous pyroclastic-flow (ignimbrite) deposits from the eruption of Mount St. Helens on 18 May 1983

    Science.gov (United States)

    Criswell, C. W.; Elston, W. E.

    1984-01-01

    Between 1217 and 1620 hours (PDT), on May 18, 1980, the magmatic eruption column of Mount St. Helens formed an ash fountain and pyroclastic flows dominated the eruption process over tephra ejection. Eurption-rate pulsations generally increased to a maximum at 1600 to 1700 hrs. After 1620 hrs, the eruption assumed an open-vent discharge with strong, vertical ejection of tephra. Relative eruption rates (relative mass flux rates) of the pyroclastic flows were determined by correlating sequential photographs and SLAR images, obtained during the eruption, with stratigraphy and surface morphology of the deposits.

  12. Monitoring lava-dome growth during the 2004-2008 Mount St. Helens, Washington, eruption using oblique terrestrial photography

    Science.gov (United States)

    Major, J.J.; Dzurisin, D.; Schilling, S.P.; Poland, Michael P.

    2009-01-01

    We present an analysis of lava dome growth during the 2004–2008 eruption of Mount St. Helens using oblique terrestrial images from a network of remotely placed cameras. This underutilized monitoring tool augmented more traditional monitoring techniques, and was used to provide a robust assessment of the nature, pace, and state of the eruption and to quantify the kinematics of dome growth. Eruption monitoring using terrestrial photography began with a single camera deployed at the mouth of the volcano's crater during the first year of activity. Analysis of those images indicates that the average lineal extrusion rate decayed approximately logarithmically from about 8 m/d to about 2 m/d (± 2 m/d) from November 2004 through December 2005, and suggests that the extrusion rate fluctuated on time scales of days to weeks. From May 2006 through September 2007, imagery from multiple cameras deployed around the volcano allowed determination of 3-dimensional motion across the dome complex. Analysis of the multi-camera imagery shows spatially differential, but remarkably steady to gradually slowing, motion, from about 1–2 m/d from May through October 2006, to about 0.2–1.0 m/d from May through September 2007. In contrast to the fluctuations in lineal extrusion rate documented during the first year of eruption, dome motion from May 2006 through September 2007 was monotonic (± 0.10 m/d) to gradually slowing on time scales of weeks to months. The ability to measure spatial and temporal rates of motion of the effusing lava dome from oblique terrestrial photographs provided a significant, and sometimes the sole, means of identifying and quantifying dome growth during the eruption, and it demonstrates the utility of using frequent, long-term terrestrial photography to monitor and study volcanic eruptions.

  13. Methane production and oxidation in lakes impacted by the May 18, 1980 eruption of Mount St. Helens

    International Nuclear Information System (INIS)

    Lilley, M.D.; Baross, J.A.; Dahm, C.N.

    1988-01-01

    The concentrations of CH 4 and CH 4 oxidation rates were measured in lakes impacted by the May 18, 1980 eruption of Mount St. Helens. The highest CH 4 concentrations were recorded during the first summer after the eruption and ranged in surface waters from 5 microM in the moderately impacted Ryan Lake to 28 microM in the heavily impacted North Coldwater Lake. At depths below the oxic/anoxic interface, CH 4 levels reached 250 microM in North Coldwater Lake, 184 microM in Spirit Lake, 70 microM in Castle Creek lake, and 60 microM in Ryan Lake. The CH 4 flux measurements from these lakes during the summer following the May 18, 1980 eruption were the highest ever recorded in lakes with ranges of 1.1-2.9 mmol CH 4 /sq m/day in the light to moderately impacted McBride and Ryan Lakes to ranges of 17.4-25.3 mmol CH 4 /sq m/day in the heavily impacted Castle Creek, North Coldwater, and Spirit Lakes. Evidence of CH 4 oxidation was seen in all of the lakes during the summer of 1981, and rates of CH 4 oxidation using C 14 -CH 4 were measured in spirit Lake from 1982 to 1986. The highest rates of CH 4 oxidation measured were during the summer stratification and ranged from 50 to 150 nmol CH 4 oxidized/L/day. methane oxidation rates were measured in waters having oxygen concentrations less than 100 microM with highest activity occurring at concentrations of 30-60 microM. 36 refs., 12 figs. 3 tabs

  14. Runout distance and dynamic pressure of pyroclastic density currents: Evidence from 18 May 1980 blast surge of Mount St. Helens

    Science.gov (United States)

    Gardner, J. E.; Andrews, B. J.

    2016-12-01

    Pyroclastic density currents (flows and surges) are one of the most deadly hazards associated with volcanic eruptions. Understanding what controls how far such currents will travel, and how their dynamic pressure evolves, could help mitigate their hazards. The distance a ground hugging, pyroclastic density current travels is partly limited by when it reverses buoyancy and lifts off into the atmosphere. The 1980 blast surge of Mount St. Helens offers an example of a current seen to lift off. Before lofting, it had traveled up to 20 km and leveled more than 600 km3 of thick forest (the blowdown zone). The outer edge of the devastated area - where burned trees that were left standing (the singe zone) - is where the surge is thought to have lifted off. We recently examined deposits in the outer parts of the blowdown and in the singe zone at 32 sites. The important finding is that the laterally moving surge travelled into the singe zone, and hence the change in tree damage does not mark the run out distance of the ground hugging surge. Eyewitness accounts and impacts on trees and vehicles reveal that the surge consisted of a fast, dilute "overcurrent" and a slower "undercurrent", where most of the mass (and heat) was retained. Reasonable estimates for flow density and velocity show that dynamic pressure of the surge (i.e., its ability to topple trees) peaked near the base of the overcurrent. We propose that when the overcurrent began to lift off, the height of peak dynamic pressure rose above the trees and stopped toppling them. The slower undercurrent continued forward, burning trees but it lacked the dynamic pressure needed to topple them. Grain-size variations argue that it slowed from 30 m/s when it entered the singe zone to 3 m/s at the far end. Buoyancy reversal and liftoff are thus not preserved in the deposits where the surge lofted upwards.

  15. Liftoff of the 18 May 1980 surge of Mount St. Helens (USA) and the deposits left behind

    Science.gov (United States)

    Gardner, James E.; Andrews, Benjamin J.; Dennen, Robert

    2017-01-01

    The distance that ground-hugging pyroclastic density currents travel is limited partly by when they reverse buoyancy and liftoff into the atmosphere. It is not clear, however, what deposits are left behind by lofting flows. One current that was seen to liftoff was the surge erupted from Mount St. Helens on the morning of 18 May 1980. Before lofting, it had leveled a large area of thick forest (the blowdown zone). The outer edge of the devastated area—where trees were scorched but left standing (the scorched zone)—is where the surge is thought to have lifted off. Deposits in the outer parts of the blowdown and in the scorched zone were examined at 32 sites. The important finding is that the laterally moving surge traveled through the scorched zone, and hence, the change in tree damage does not mark the runout distance of the surge. Buoyancy reversal and liftoff are thus not preserved in the deposits where the surge lofted upwards. We propose, based on interpretation of eyewitness accounts and the impacts of the surge on trees and vehicles, that the surge consisted of a faster, dilute "overcurrent" and a slower "undercurrent," where most of the mass (and heat) was retained. Reasonable estimates for flow density and velocity show that dynamic pressure of the surge (i.e., its ability to topple trees) peaked near the base of the overcurrent. We propose that where the overcurrent began to liftoff, the height of peak dynamic pressure rose above the trees and stopped toppling them. The slower undercurrent continued forward, however, scorching trees, but lacked the dynamic pressure needed to topple them. Grain-size variations argue that it slowed from ˜30 m s-1 when it entered the scorched zone to ˜3 m s-1 at the far end.

  16. After the disaster: the hydrogeomorphic, ecological, and biological responses to the 1980 eruption of Mount St. Helens, Washington

    Science.gov (United States)

    Major, Jon J.; Crisafulli, Charlie; Bishop, John

    2009-01-01

    The 1980 eruption of Mount St. Helens caused instantaneous landscape disturbance on a grand scale. On 18 May 1980, an ensemble of volcanic processes, including a debris avalanche, a directed pyroclastic density current, voluminous lahars, and widespread tephra fall, abruptly altered landscape hydrology and geomorphology, and created distinctive disturbance zones having varying impacts on regional biota. Response to the geological and ecological disturbances has been varied and complex. In general, eruption-induced alterations in landscape hydrology and geomorphology led to enhanced stormflow discharge and sediment transport. Although the hydrological response to landscape perturbation has diminished, enhanced sediment transport persists in some basins. In the nearly 30 years since the eruption, 350 million (metric) tons of suspended sediment has been delivered from the Toutle River watershed to the Cowlitz River (roughly 40 times the average annual preeruption suspended-sediment discharge of the Columbia River). Such prodigious sediment loading has wreaked considerable socioeconomic havoc, causing significant channel aggradation and loss of flood conveyance capacity. Significant and ongoing engineering efforts have been required to mitigate these problems. The overall biological evolution of the eruption-impacted landscape can be viewed in terms of a framework of survivor legacies. Despite appearances to the contrary, a surprising number of species survived the eruption, even in the most heavily devastated areas. With time, survivor “hotspots” have coalesced into larger patches, and have served as stepping stones for immigrant colonization. The importance of biological legacies will diminish with time, but the intertwined trajectories of geophysical and biological successions will influence the geological and biological responses to the 1980 eruption for decades to come.

  17. HLA-DR-expressing cells and T-lymphocytes in sural nerve biopsies

    DEFF Research Database (Denmark)

    Schrøder, H D; Olsson, T; Solders, G

    1988-01-01

    was confirmed. HLA-DR expression was found in all biopsies and thus was not restricted to any particular type of neuropathy. The HLA-DR expression appeared to correlate with severity and activity of the neuropathy. HLA-DR-expressing macrophages wrapping myelinated fibers were prominent in primary demyelinating......Thirty-five sural nerve biopsies were stained immunohistochemically for HLA-DR antigen. HLA-DR was expressed on nonmyelinating Schwann cells, macrophages, vascular endothelium, and perineurium. By means of double immunofluorescence staining the identity of the HLA-DR presenting structures...

  18. Returning to sports after a back injury

    Science.gov (United States)

    ... medlineplus.gov/ency/patientinstructions/000518.htm Returning to sports after a back injury To use the sharing ... Back pain - returning to sports Which Type of Sport is Best? In deciding when and if to ...

  19. Returns to Tenure or Seniority?

    DEFF Research Database (Denmark)

    Buhai, Ioan Sebastian; Portela, Miguel; Teulings, Coen

      This study documents two empirical regularities, using data for Denmark and Portugal. First, workers who are hired last, are the first to leave the firm (Last In, First Out; LIFO). Second, workers' wages rise with seniority (= a Worker's tenure relative to the tenure of her colleagues). We seek...... at the moment of separation). The LIFO rule provides a stronger bargaining position for senior workers, leading to a return to seniority in wages. Efficiency in hiring requires the workers' .bargaining power to be in line with their share in the cost of specific investment. Then, the LIFO rule is a way...

  20. Optimization on scoliosis examination on Canons DR system

    DEFF Research Database (Denmark)

    Precht, Helle

    2007-01-01

    recordings of scoliosis today are carried out on CR systems even though most radiological departments have DR systems available. Theoretically speaking the two modalities are similar regarding dose and image quality. In this project consequently, the focus will be to obtain images of equal dose and quality...... at a DR system when using different receptors during the exam. This is a completely new opportunity, as it has earlier been difficult to compare distinct scintilators connected to the receptors due to unlike processing of the image. Given that Canon have released a receptor with CsI scintilator we...... in which theory is used as a background for the test setup and later audit appraisal. Two tests are carried out on two different hospitals with each their receptor, and afterwards the results are compared. To guarantee comparable tests the results are verified through status checks and statistical t...

  1. Dr. Harry Whelan With the Light Emitting Diode Probe

    Science.gov (United States)

    1999-01-01

    The red light from the Light Emitting Diode (LED) probe shines through the fingers of Dr. Harry Whelan, a pediatric neurologist at the Children's Hospital of Wisconsin in Milwaukee. Dr. Whelan uses the long waves of light from the LED surgical probe to activate special drugs that kill brain tumors. Laser light previously has been used for this type of surgery, but the LED light illuminates through all nearby tissues, reaching parts of tumors that shorter wavelengths of laser light carnot. The new probe is safer because the longer wavelengths of light are cooler than the shorter wavelengths of laser light, making the LED less likely to injure normal brain tissue near the tumor. Also, it can be used for hours at a time while still remaining cool to the touch. The probe was developed for photodynamic cancer therapy under a NASA Small Business Innovative Research Program grant. The program is part of NASA's Technology Transfer Department at the Marshall Space Flight Center.

  2. INTAS Secretary General Dr. J. Sinnaeve visiting Athena experiment.

    CERN Multimedia

    Patrice Loiez

    2002-01-01

    Photo 1: INTAS Secretary General Dr. J. Sinnaeve, N. Koulberg, Prof. H. Bokemeyer Head of Physics at INTAS, D.O.Williams and Rolf Landua visiting ATHENA. Photo 2: Prof. H. Bokemeyer Head of Physics at INTAS, INTAS Secretary General J. Sinnaeve and Rolf Landua visiting ATHENA. Photo 3: In the control room of ATHENA, Rolf Landua, Prof. H. Bokemeyer Head of Physics at INTAS and INTAS Secretary General Dr. J. Sinnaeve. INTAS is an independent International Association formed by the European Community, European Union´s Member States and like minded countries acting to preserve and promote the valuable scientific potential of the NIS partner countries through East-West Scientific co-operation.

  3. DR Experiments in the 60 years since the Bates paper

    International Nuclear Information System (INIS)

    Johnsen, Rainer

    2011-01-01

    About 60 years have passed since David Bates in a 1950 Physical Review Letter to the Editor first clarified the dissociative recombination mechanism (DR) of molecular ions and provided the conceptual basis for the process that plays an important role in the ionospheres of Earth and other planets, the interstellar medium, and electrical discharges. His visionary (and characteristically 'terse') thumbnail sketch of the DR mechanism only hinted at the subtleties that have kept atomic theorists and experimentalists busy for many years. In my talk, I will focus on experiments on N 2 + recombination, beginning with plasma afterglows, and then move on to the 'after'-afterglow period that is now dominated by the powerful storage-ring methods.

  4. N2R vs. DR Network Infrastructure Evaluation

    DEFF Research Database (Denmark)

    Pedersen, Jens Myrup; Roost, Lars Jessen; Toft, Per Nesager

    2007-01-01

    Recent development of Internet-based services has set higher requirements to network infrastructures in terms of more bandwidth, lower delays and more reliability. Theoretical research within the area of Structural Quality of Service (SQoS) has introduced a new type of infrastructure which meet...... these requirements: N2R infrastructures. This paper contributes to the ongoing research with a case study from North Jutland. An evaluation of three N2R infrastructures compared to a Double Ring (DR) infrastructure will provide valuable information of the practical applicability of N2R infrastructures. In order...... to study if N2R infrastructures perform better than the DR infrastructure, a distribution network was established based on geographical information system (GIS) data. Nodes were placed with respect to demographic and geographical factors. The established distribution network was investigated with respect...

  5. Common Factors in International Bond Returns

    NARCIS (Netherlands)

    Driessen, J.J.A.G.; Melenberg, B.; Nijman, T.E.

    2000-01-01

    In this paper we estimate and interpret the factors that jointly determine bond returns of different maturities in the US, Germany and Japan.We analyze both currency-hedged and unhedged bond returns.For currency-hedged bond returns, we find that five factors explain 96.5% of the variation of bond

  6. Foreign currency returns and systematic risks

    NARCIS (Netherlands)

    Galsband, V.; Nitschka, T.

    2015-01-01

    We apply an empirical approximation of the intertemporal capital asset pricing model (ICAPM) to show that cross-sectional dispersion in currency returns can be rationalized by differences in currency excess returns' sensitivities to the market return's cash-flow news component. This finding echoes

  7. DR services in Fiji: attitudes, barriers and screening practices

    Directory of Open Access Journals (Sweden)

    Bridget Kool

    2015-06-01

    Full Text Available The aim of this study was to describe the attitudes and perceptions of primary health care doctors in Fiji regarding the importance of eye care in diabetes mellitus (DM management, to explore current eye care practice, and to investigate awareness and use of relevant clinical practice guidelines. The study builds on earlier research conducted in Fiji that identified a rapid increase of late-stage DR patients presenting for treatment, at a time when surgery was the only option.

  8. Postdoctoral Fellowship for Dr. Lindholm, Underwater Physiology and Medicine

    Science.gov (United States)

    2008-05-01

    hypoxia close to loss of consciousness during apnea seems to be of similar intensity as in the "steady state" situation of hypobaric hypoxia during...for outstanding scientific contribution to advances in the undersea or hyperbaric biomedical field 2006 4. Pendergast DR: Honoree of the SUNY Research...2. Lindholm P and Lundgren CEG. Alveolar gas composition before and after maximal breath-holds in competitive divers. , Undersea and Hyperbaric

  9. Tun Dr. Mahathir’s Leadership Communication: The Confucian Perspective

    OpenAIRE

    Cheah Joyce Lynn-Sze; Yusof Norhafezah; Ahmad Mohd Khairie

    2017-01-01

    Previous studies have provided valuable insights into the impact of culture on the concept of leadership communication. However, only a few studies that focused on exploring and understanding the values of Confucianism and its impact on the Chinese culture, especially in Malaysia. Thus, this study is among the first study to examine the leadership communication from the perspective of Confucianism towards the leadership of Dr. Mahathir from the perspective of the Chinese community in Malaysia...

  10. 105-DR Large Sodium Fire Facility closure plan

    International Nuclear Information System (INIS)

    1993-05-01

    The Hanford Site, located northwest of the city of Richland, Washington, houses reactors, chemical-separation systems, and related facilities used for the production of special nuclear materials, and activities associated with nuclear energy development. The 105-DR Large Sodium Fire Facility (LSFF), which was in operation from about 1972 to 1986, was a research laboratory that occupied the former ventilation supply room on the southwest side of the 105-DR Reactor facility. The LSFF was established to provide a means of investigating fire and safety aspects associated with large sodium or other metal alkali fires in the liquid metal fast breeder reactor (LMFBR) facilities. The 105-DR Reactor facility was designed and built in the 1950's and is located in the 100-D Area of the Hanford Site. The building housed the 105-DR defense reactor, which was shut down in 1964. The LSFF was initially used only for engineering-scale alkali metal reaction studies. In addition, the Fusion Safety Support Studies program sponsored intermediate-size safety reaction tests in the LSFF with lithium and lithium lead compounds. The facility has also been used to store and treat alkali metal waste, therefore the LSFF is subject to the regulatory requirements for the storage and treatment of dangerous waste. Closure will be conducted pursuant to the requirements of the Washington Administrative Code (WAC) 173-303-610. This closure plan presents a description of the facility, the history of waste managed, and the procedures that will be followed to close the LSFF as an Alkali Metal Treatment Facility. No future use of the LSFF is expected

  11. 105-DR Large Sodium Fire Facility closure activities evaluation report

    International Nuclear Information System (INIS)

    Adler, J.G.

    1996-01-01

    This report evaluates the closure activities at the 105-DR Large Sodium Fire Facility. The closure activities discussed include: the closure activities for the structures, equipment, soil, and gravel scrubber; decontamination methods; materials made available for recycling or reuse; and waste management. The evaluation compares these activities to the regulatory requirements and closure plan requirements. The report concludes that the areas identified in the closure plan can be clean closed

  12. 105-DR Large Sodium Fire Facility closure plan. Revision 1

    Energy Technology Data Exchange (ETDEWEB)

    1993-05-01

    The Hanford Site, located northwest of the city of Richland, Washington, houses reactors, chemical-separation systems, and related facilities used for the production of special nuclear materials, and activities associated with nuclear energy development. The 105-DR Large Sodium Fire Facility (LSFF), which was in operation from about 1972 to 1986, was a research laboratory that occupied the former ventilation supply room on the southwest side of the 105-DR Reactor facility. The LSFF was established to provide a means of investigating fire and safety aspects associated with large sodium or other metal alkali fires in the liquid metal fast breeder reactor (LMFBR) facilities. The 105-DR Reactor facility was designed and built in the 1950`s and is located in the 100-D Area of the Hanford Site. The building housed the 105-DR defense reactor, which was shut down in 1964. The LSFF was initially used only for engineering-scale alkali metal reaction studies. In addition, the Fusion Safety Support Studies program sponsored intermediate-size safety reaction tests in the LSFF with lithium and lithium lead compounds. The facility has also been used to store and treat alkali metal waste, therefore the LSFF is subject to the regulatory requirements for the storage and treatment of dangerous waste. Closure will be conducted pursuant to the requirements of the Washington Administrative Code (WAC) 173-303-610. This closure plan presents a description of the facility, the history of waste managed, and the procedures that will be followed to close the LSFF as an Alkali Metal Treatment Facility. No future use of the LSFF is expected.

  13. ORAC-DR: A generic data reduction pipeline infrastructure

    Science.gov (United States)

    Jenness, Tim; Economou, Frossie

    2015-03-01

    ORAC-DR is a general purpose data reduction pipeline system designed to be instrument and observatory agnostic. The pipeline works with instruments as varied as infrared integral field units, imaging arrays and spectrographs, and sub-millimeter heterodyne arrays and continuum cameras. This paper describes the architecture of the pipeline system and the implementation of the core infrastructure. We finish by discussing the lessons learned since the initial deployment of the pipeline system in the late 1990s.

  14. Practitioner Profile: An Interview with Dr. Jerry Gale, LMFT

    Directory of Open Access Journals (Sweden)

    Jerry Gale

    2012-06-01

    Full Text Available Dr. Jerry Gale is an Associate Professor and the Clinical Director of the Marriage and Family Therapy Doctoral Program at the University of Georgia. He is a Licensed Marriage and Family Therapist and an approved supervisor of the American Association of Marriage and Family Therapists. He earned a B.A. from the University of Michigan, a MEd from the University of Arizona, and a Ph.D. from Texas Tech University. Over the course of his career, Dr. Gale has authored three books and over 60 articles and book chapters. He is a co-developer of a relational financial therapy approach that combines financial counseling with family therapy and has extensive training in clinical hypnosis, couples therapy, and family therapy, as well as mindfulness meditation. He is the recipient of the American Family Therapy Academy 2006 Outstanding Research Award. In addition to his work at the University of Georgia, Dr. Gale conducts therapy at Athens Associates for Counseling and Psychotherapy.

  15. Dr.LiTHO: a development and research lithography simulator

    Science.gov (United States)

    Fühner, Tim; Schnattinger, Thomas; Ardelean, Gheorghe; Erdmann, Andreas

    2007-03-01

    This paper introduces Dr.LiTHO, a research and development oriented lithography simulation environment developed at Fraunhofer IISB to flexibly integrate our simulation models into one coherent platform. We propose a light-weight approach to a lithography simulation environment: The use of a scripting (batch) language as an integration platform. Out of the great variety of different scripting languages, Python proved superior in many ways: It exhibits a good-natured learning-curve, it is efficient, available on virtually any platform, and provides sophisticated integration mechanisms for existing programs. In this paper, we will describe the steps, required to provide Python bindings for existing programs and to finally generate an integrated simulation environment. In addition, we will give a short introduction into selected software design demands associated with the development of such a framework. We will especially focus on testing and (both technical and user-oriented) documentation issues. Dr.LiTHO Python files contain not only all simulation parameter settings but also the simulation flow, providing maximum flexibility. In addition to relatively simple batch jobs, repetitive tasks can be pooled in libraries. And as Python is a full-blown programming language, users can add virtually any functionality, which is especially useful in the scope of simulation studies or optimization tasks, that often require masses of evaluations. Furthermore, we will give a short overview of the numerous existing Python packages. Several examples demonstrate the feasibility and productiveness of integrating Python packages into custom Dr.LiTHO scripts.

  16. Comparison of small-footprint discrete return and full waveform airborne lidar data for estimating multiple forest variables

    OpenAIRE

    Sumnall, Matthew J.; Hill, Ross A.; Hinsley, Shelley A.

    2016-01-01

    The quantification of forest ecosystems is important for a variety of purposes, including the assessment of wildlife habitat, nutrient cycles, timber yield and fire propagation. This research assesses the estimation of forest structure, composition and deadwood variables from small-footprint airborne lidar data, both discrete return (DR) and full waveform (FW), acquired under leaf-on and leaf-off conditions. The field site, in the New Forest, UK, includes managed plantation and ancient, se...

  17. Dr. Lindberg's Legacy : Charting A New Course | NIH MedlinePlus the Magazine

    Science.gov (United States)

    ... more. Don also created the National Center for Biotechnology Information (NCBI). NCBI has been a focal point ... with Dr. Lindberg (right) and National Center for Biotechnology Information Director Dr. David Lipman (center) at a ...

  18. Granice podmorskih prostora jadranskih država

    Directory of Open Access Journals (Sweden)

    Marina Vokić Žužul

    2015-09-01

    Full Text Available U ovome radu analiziraju se sve dosada utvrđene granice jadranskog podmorja kao i one koje tak valja utvrditi, posebice u svjetlu novih istraživanja njegovih prirodnih bogatstava. Uz Hrvatsku i Italiju, koje dijele najveći dio morskog dna i podzemlja u Jadranu, pravo na epikontinentski pojas imaju i Crna Gora te Albanija. Dvije jadranske države s kratkim obalama – Bosna i Hercegovina te Slovenija, države su u nepovoljnome geografskom položaju koje ne mogu imati epikontinentski pojas kao prirodni produžetak svoga kopnenog područja. Podmorski prostori tih država završavaju stoga na vanjskoj granici njihovih teritorijalnih mora. Osim razmatranja tih granica i sporazumno utvrđenih granica epikontinentskih pojaseva, autorice se kritički osvrću i na jednostrane akte Slovenije o proglašenju njezinoga epikontinentskog pojasa iz 2005. godine kao potpuno pravno neutemeljene akte. U središtu pozornosti ovoga rada je razmatranje granice koja dijeli podmorske prostore Hrvatske i Italije kao buduće granice dviju država i nad morskim dnom. Ta bi granična crta, u skladu s Konvencijom UN-a o pravu mora, trebala postati – jedinstvena morska granica njihovih epikontinentskih i gospodarskih pojaseva (odnosno ekološke zone Italije i zaštićenoga ekološko-ribolovnog pojasa Republike Hrvatske. Takva višefunkcionalna jedinstvena granična crta u najboljem je interesu pravne sigurnosti u svim načinima korištenja mora, a u međunarodnoj sudskoj i arbitražnoj praksi posljednjih desetljeća u potpunosti je zamijenila povlačenje različitih crta razgraničenja za više pojaseva u istome morskom prostoru. S obzirom na rezultate nedavno provedenih istraživanja potencijalnih nalazišta nafte i plina u južnom Jadranu, u radu se upozorava i na potrebu što skorijeg povlačenja crte bočnog razgraničenja epikontinentskih pojaseva Hrvatske i Crne Gore. Autorice analiziraju moguće pravce te nove granice, uzimajući u obzir znatno odstupanje od

  19. Stock Returns and Risk: Evidence from Quantile

    Directory of Open Access Journals (Sweden)

    Thomas C. Chiang

    2012-12-01

    Full Text Available This paper employs weighted least squares to examine the risk-return relation by applying high-frequency data from four major stock indexes in the US market and finds some evidence in favor of a positive relation between the mean of the excess returns and expected risk. However, by using quantile regressions, we find that the risk-return relation moves from negative to positive as the returns’ quantile increases. A positive risk-return relation is valid only in the upper quantiles. The evidence also suggests that intraday skewness plays a dominant role in explaining the variations of excess returns.

  20. New ultracool subdwarfs identified in large-scale surveys using Virtual Observatory tools. I. UKIDSS LAS DR5 vs. SDSS DR7

    Science.gov (United States)

    Lodieu, N.; Espinoza Contreras, M.; Zapatero Osorio, M. R.; Solano, E.; Aberasturi, M.; Martín, E. L.

    2012-06-01

    Aims: The aim of the project is to improve our knowledge of the low-mass and low-metallicity population to investigate the influence of metallicity on the stellar (and substellar) mass function. Methods: We present the results of a photometric and proper motion search aimed at discovering ultracool subdwarfs in large-scale surveys. We employed and combined the Fifth Data Release (DR5) of the UKIRT Infrared Deep Sky Survey (UKIDSS) Large Area Survey (LAS) and the Sloan Digital Sky Survey (SDSS) Data Release 7 complemented with ancillary data from the Two Micron All-Sky Survey (2MASS), the DEep Near-Infrared Survey (DENIS) and the SuperCOSMOS Sky Surveys (SSS). Results: The SDSS DR7 vs. UKIDSS LAS DR5 search returned a total of 32 ultracool subdwarf candidates, only two of which are recognised as a subdwarf in the literature. Twenty-seven candidates, including the two known ones, were followed-up spectroscopically in the optical between 600 and 1000 nm, thus covering strong spectral features indicative of low metallicity (e.g., CaH), 21 with the Very Large Telescope, one with the Nordic Optical Telescope, and five were extracted from the Sloan spectroscopic database to assess (or refute) their low-metal content. We confirm 20 candidates as subdwarfs, extreme subdwarfs, or ultra-subdwarfs with spectral types later than M5; this represents a success rate of ≥ 60%. Among those 20 new subdwarfs, we identify two early-L subdwarfs that are very likely located within 100 pc, which we propose as templates for future searches because they are the first examples of their subclass. Another seven sources are solar-metallicity M dwarfs with spectral types between M4 and M7 without Hα emission, suggesting that they are old M dwarfs. The remaining five candidates do not have spectroscopic follow-up yet; only one remains as a bona-fide ultracool subdwarf after revision of their proper motions. We assigned spectral types based on the current classification schemes and, when

  1. 76 FR 22611 - Specified Tax Return Preparers Required To File Individual Income Tax Returns Using Magnetic...

    Science.gov (United States)

    2011-04-22

    ... Specified Tax Return Preparers Required To File Individual Income Tax Returns Using Magnetic Media... Register on Wednesday, March 30, 2011 (76 FR 17521) providing guidance to specified tax return preparers who prepare and file individual income tax returns using magnetic media pursuant to section 6011(e)(3...

  2. For Dr. Nancy Snyderman's Parents, Staying Close to Family Is Key

    Science.gov (United States)

    ... to move closer to their daughter and her family, as part of the next chapter in their lives. Photo courtesy of Dr. Nancy Snyderman As Chief Medical Editor for NBC News and host of the popular MSNBC show, Dr. Nancy , Dr. ...

  3. Agonistic Human Monoclonal Antibodies against Death Receptor 4 (DR4) | NCI Technology Transfer Center | TTC

    Science.gov (United States)

    The National Cancer Institute is seeking parties interested in licensing human monoclonal antibodies (mAbs) that bind to death receptor 4 ("DR4"). The tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) and its functional receptors, DR4 and DR5, have been recognized as promising targets for cancer treatment.

  4. Human immune responsiveness to Lolium perenne pollen allergen Lol p III (rye III) is associated with HLA-DR3 and DR5.

    Science.gov (United States)

    Ansari, A A; Freidhoff, L R; Meyers, D A; Bias, W B; Marsh, D G

    1989-05-01

    A well-characterized allergen of Lolium perenne (perennial rye grass) pollen, Lol p III, has been used as a model antigen to study the genetic control of the human immune response. Associations between HLA type and IgE or IgG antibody (Ab) responsiveness to Lol p III were studied in two groups of skin-test-positive Caucasoid adults (N = 135 and 67). We found by nonparametric and parametric analyses that immune responsiveness to Lol p III was significantly associated with HLA-DR3 and DR5. No association was found between any DQ type and immune responsiveness to Lol p III. Geometric mean IgE or IgG Ab levels to Lol p III were not different between B8+, DR3+ subjects and B8-, DR3+ subjects, showing that HLA-B8 had no influence on the association. Lol p III IgG Ab data obtained on subjects after grass antigen immunotherapy showed that 100% of DR3 subjects and 100% of DR5 subjects were Ab+. A comparison of all the available protein sequences of DRB gene products showed that the first hypervariable region of DR3 and DR5 (and DRw6), and no other region, contains the sequence Glu9-Tyr-Ser-Thr-Ser13. Our observations are consistent with the possibility that immune responsiveness to the allergen Lol p III is associated with this amino acid sequence in the first hypervariable region of the DR beta 1 polypeptide chain.

  5. Urbanistid ja keskkonnaeksperdid: iga muudatuse eest Reidi tee projektis oleme pidanud võitlema / Helen Sooväli-Sepping, Kristi Grišakov, Mari Jüssi ; intervjueerinud Mari Peegel ; kommenteerinud Taavi Aas

    Index Scriptorium Estoniae

    Sooväli-Sepping, Helen, 1974-

    2016-01-01

    TLÜ keskkonnakorralduse professor ja linnakorralduse õppekava juht Helen Sooväli-Sepping, TTÜ maastikuarhitektuuri õppekava juht ja linnaplaneerija-urbanist Kristi Grišakov ning Stockholmi keskkonnainstituudi Tallinna keskuse liikuvus- ja keskkonnaekspert Mari Jüssi kinnitavad, et Reidi tee projekt ei ole endiselt inimsõbralik

  6. Education and Outreach through Ludo-Pedagogy and Experiential Learning. Bridging Feminist and Diversity Movements in Today's Nicaragua: An Interview with Helen Alfaro, Yova Briones, and Tannia Rizo Lazo of La Casa de los Colores

    Science.gov (United States)

    DeGrave, Analisa

    2016-01-01

    La Casa de los Colores (the House of Colors) is a feminist organization dedicated to defending human rights, particularly those of the LGBTQ+ community in León, Nicaragua. In 2016 Helen Alfaro, Yova Briones, Ani Guerrero, and Tannia Rizo Lazo, four members of La Casa's leadership team, "Las Coloras," were invited to speak about…

  7. Vanemate töötamine välismaal - kuidas see mõjutab lapse elu : laste ja spetsialistide tõlgendused / Helen Pärna, Karmen Lai, Taimi Tulva

    Index Scriptorium Estoniae

    Pärna, Helen, 1983-

    2008-01-01

    Artikkel tugineb Helen Pärna magistriuurimusele. Ülevaade uurimustulemustest, mis puudutavad välismaale tööle läinud lapsevanemate lapse toimetulekut argieluga ning arutletakse selle üle, kuidas lapse lahusolek vanematest võib mõjutada lapse ja vanema vahelisi suhteid

  8. A closer look at the pyroclastic density current deposits of the May 18, 1980 eruption of Mt St Helens

    Science.gov (United States)

    Mackaman-Lofland, C. A.; Brand, B. D.; Dufek, J.

    2010-12-01

    Pyroclastic Density Currents (PDCs) are the most dangerous hazard associated with explosive volcanic eruptions. Due to the danger associated with observing these ground-hugging currents of searing hot gas, ash, and rock in real time, their processes are poorly understood. In order to understand flow dynamics, including what controls how far PDCs travel and how they interact with topography, it is necessary to study their deposits. The May 18th, 1980 eruption of Mt. St. Helens produced multiple PDCs, burying the area north of the volcano under 10s of meters of PDC deposits. Because the eruption is one of the best observed on record, individual flow units can be correlated to changes in eruptive intensity throughout the day (e.g., Criswell, 1987). Deep drainage erosion over the past 30 years has exposed the three-dimensional structure of the PDC deposits, making this intensive study possible. Up to six flow units have been identified along the large western drainage of the pumice plain. Each flow unit has intricate vertical and lateral facies changes and complex cross-cutting relationships away from source. The most proximal PDC deposits associated with the afternoon flows on May 18 are exposed 4 km from source in tributaries of the large drainage on the western side of the pumice plain. Hummocks from the debris avalanche are also exposed above and within these proximal drainages. It is apparent that the PDCs were often erosional, entraining large blocks from the hummocks and depositing them in close proximity downstream. The currents were also depositional, as thick sequences of PDC deposits are found in areas between hummocks, which thin to veneers above them. This indicates that the currents were interacting with complex topography early in their propagation, and is reflected by spatially variable bed conditions including rapid changes in bedding and granulometry characteristics within individual flow units. For example, within 20 lateral meters of a given flow

  9. Topographic controls on pyroclastic density current dynamics: Insight from 18 May 1980 deposits at Mount St. Helens, Washington (USA)

    Science.gov (United States)

    Brand, Brittany D.; Bendaña, Sylvana; Self, Stephen; Pollock, Nicholas

    2016-07-01

    Our ability to interpret the deposits of pyroclastic density currents (PDCs) is critical for understanding the transport and depositional processes that control PDC dynamics. This paper focuses on the influence of slope on flow dynamics and criticality as recorded in PDC deposits from the 18 May 1980 eruption of Mt. St. Helens (USA). PDC deposits are found along the steep flanks (10°-30°) and across the pumice plain ( 5°) up to 8 km north of the volcano. Granulometry, componentry and descriptions of depositional characteristics (e.g., bedform morphology) are recorded with distance from source. The pumice plain deposits are primarily thick (3-12 m), massive and poorly-sorted, and represent deposition from a series of concentrated PDCs. By contrast, the steep flank deposits are stratified to cross-stratified, suggesting deposition from PDCs where turbulence strongly influenced transport and depositional processes. We propose that acceleration of the concentrated PDCs along the steep flanks resulted in thinning of the concentrated, basal region of the current(s). Enhanced entrainment of ambient air, and autofluidization from upward fluxes of air from substrate interstices and plunging breakers across rugged, irregular topography further inflated the currents to the point that the overriding turbulent region strongly influenced transport and depositional mechanisms. Acceleration in combination with partial confinement in slot canyons and high surface roughness would also increase basal shear stress, further promoting shear and traction transport in the basal region of the current. Conditions along the steep flank resulted in supercritical flow, as recorded by regressive bedforms, which gradually transitioned to subcritical flow downstream as the concentrated basal region thickness increased as a function of decreasing slope and flow energy. We also find that (1) PDCs were erosive into the underlying granular substrate along high slopes (> 25°) where currents were

  10. [Dr. Jovan Andrejević Jols, the first Serbian anatomist life, work and achievement].

    Science.gov (United States)

    Sakač, Dejan; Sakač, Vladimir; Čabarkapa, Velibor; Bugarski, Vojislava

    2011-01-01

    Doctor Jovan Andrejević Joles was one of the most educated Serbs of the 19th century, a medical doctor, scientist, journalist and translator. He was born in 1883 in Novi Sad. Even as a student of medicine he was active in scientific work, which resulted in a paper entiteled "The fine structure of the liver," later published in one of the most eminent medical journals in Europe. He completed the study of medicine in Vienna. He did not accept the position at the Medical Faculty in Vienna, and returned to Novi Sad, where he quickly gained an excellent reputation as a physician. He participated in the founding of the Serbian National Theatre in 1861, he was also one of the most active contributors of Matica Srpska, wrote many articles, critics and reviews, and was also regarded as the founder of aesthetic romanticism in Serbs. With Laza Kostić, he was the first among the Serbs to translate Shakespeare. At that time, when he was only 30 years old, he wrote about a brand-new art - photography. He lived in a harmonious marriage with Jelena - Ilka Bajić, who after Joles' death remarried to a captain of the Serbian army, and after his murder, became famous for the assassination attempt of King Milan Obrenović (recorded in history textbooks as the "Rebellion of Ilka"). Dr. Jovan Andrejevć died prematurely of tuberculosis, at that time an incurable disease, in 1864 in Novi Sad.

  11. La inmortalidad de Drácula: historia, leyenda, ideaciones…

    OpenAIRE

    Munteanu, Dan

    2010-01-01

    [ES]drácula es un personaje real del siglo XV: príncipe de Valaquia, valiente luchador contra el imperio otomano por la independencia de su país, justo, pero muy cruel con los enemigos, cualidades que le confieren la inmortalidad de los personajes históricos. protagonista de creaciones literarias ya en su vida, se convierte en leyenda y adquiere la inmortalidad del vampiro gracias a stoker. Y, a la vez, la inmortalidad de los persona - jes de leyenda, literarios, pictóricos, musicales y cinem...

  12. A conversation with Dr Michael Fordham. Interview by James Astor.

    Science.gov (United States)

    Fordham, Michael

    2005-02-01

    In this interview in Dr Fordham's 83rd year he describes how he started to work with children, and how Mrs Jung was supportive. He talks about the initial suspicion this interest generated in the wider Jungian community. He refers to his acceptance of and interest in the psychotic elements in child analysis and his transference-based approach to working with these elements. He reflects on his own birth, his work with evacuee children in hostels during the war years and the politics of supervision. He describes the core Jungian concepts which underpinned his work and the theoretical differences from the Kleinian and Anna Freudian positions.

  13. Dr. Phil's Art Corner: Searching and Cobra Canyon.

    Science.gov (United States)

    2018-01-01

    Philip Alexander, M.D., is a native Texan, retired physician, and accomplished musician and artist. After 41 years as an internal medicine physician, Dr. Phil retired from his practice in College Station in 2016. A lifelong musician and former music professor, he often performs as an oboe soloist for the Brazos Valley Symphony Orchestra. He began exploring visual art in 1980, evolving from pencil sketches-including an official White House portrait of President Ronald Reagan-to the computer-generated drawings featured in this journal. His images, which first appeared in this journal in the spring of 2012, are his own original creations.

  14. Dr. Mainte. Integrated simulator of maintenance optimization of LWRs

    International Nuclear Information System (INIS)

    Isobe, Yoshihiro; Sagisaka, Mitsuyuki; Etoh, Junji; Matsunaga, Takashi; Kosaka, Toru; Matsumoto, Satoshi; Yoshimura, Shinobu

    2014-01-01

    Dr. Mainte, an integrated simulator for maintenance optimization of LWRs (Light Water Reactors) has been developed based on PFM (Probabilistic Fracture Mechanics) analyses. The concept of the simulator is to provide a decision-making system to optimize maintenance activities for representative components and piping systems in nuclear power plants totally and quantitatively in terms of safety, availability and economic efficiency, environmental impact and social acceptance. For the further improvement of the safety and availability, the effect of human error and its reduction on the optimization of plant maintenance activities and approaches of reducing it have been studied. (author)

  15. Integrated marketing communication plan : Case company: Dr. Johanna Budwig

    OpenAIRE

    Pham, Van

    2013-01-01

    The study’s research topic is integrated marketing communication and this is a product-oriented thesis. This study is made to create an efficient integrated marketing communication plan for the case company Dr. Johanna Budwig. The main product line in focus is flaxseed oil, which is very healthy and also good in preventing different diseases including cancer. The company home market, Germany, is the target market of the study. The objective set by the company is to increase sales by 10000, wh...

  16. Dr. Mostafa Moin, Minister of Science, Research and Technology, Islamic Republic of Iran

    CERN Multimedia

    Patrice Loïez

    2001-01-01

    L. to. r.:Dr Henrik Foeth, Team Leader, CMS experiment; Dr Daniel Denegri, Physics Coordinator, CMS experiment; Prof. Tejinder Virdee, Deputy Spokesman, CMS experiment; Prof. Luciano Maiani, CERN Director-General (signing); Mr Jean-Marie Dufour, Head of the Legal Service, Mr Ghodratollah Habibpour Gharakol (back); Dr Abdolali Sharghi, Advisor to the Minister and Director General, Office of International Scientific Cooperation, Ministry of Science, Research and Technology; Dr Mostafa Moin, Minister of Science, Research and Technology, Islamic Republic of Iran (signing); Dr Reza Mansouri, Director, International Scientific Meetings Office, Ministry of Science, Research and Technology; H. E. Dr Ali Khorram, Extraordinary and plenipotentiary Ambassador to the United Nations in Geneva and Dr Hans F. Hoffmann, CERN Director for Technology Transfer & for Scientific Computing. _

  17. Stock returns and foreign investment in Brazil

    OpenAIRE

    Reis, Luciana; Meurer, Roberto; Da Silva, Sergio

    2008-01-01

    We examine the relationship between stock returns and foreign investment in Brazil, and find that the inflows of foreign investment boosted the returns from 1995 to 2005. There was a strong contemporaneous correlation, although not Granger-causality. Foreign investment along with the exchange rate, the influence of the world stock markets, and country risk can explain 73 percent of the changes that occurred in the stock returns over the period. We also find that positive feedback trading play...

  18. Maximizing ROI (return on information)

    Energy Technology Data Exchange (ETDEWEB)

    McDonald, B.

    2000-05-01

    The role and importance of managing information are discussed, underscoring the importance by quoting from the report of the International Data Corporation, according to which Fortune 500 companies lost $ 12 billion in 1999 due to inefficiencies resulting from intellectual re-work, substandard performance , and inability to find knowledge resources. The report predicts that this figure will rise to $ 31.5 billion by 2003. Key impediments to implementing knowledge management systems are identified as : the cost and human resources requirement of deployment; inflexibility of historical systems to adapt to change; and the difficulty of achieving corporate acceptance of inflexible software products that require changes in 'normal' ways of doing business. The author recommends the use of model, document and rule-independent systems with a document centered interface (DCI), employing rapid application development (RAD) and object technologies and visual model development, which eliminate these problems, making it possible for companies to maximize their return on information (ROI), and achieve substantial savings in implementation costs.

  19. Field-trip guide to Mount St. Helens, Washington - An overview of the eruptive history and petrology, tephra deposits, 1980 pyroclastic density current deposits, and the crater

    Science.gov (United States)

    Pallister, John S.; Clynne, Michael A.; Wright, Heather M.; Van Eaton, Alexa R.; Vallance, James W.; Sherrod, David R.; Kokelaar, B. Peter

    2017-08-02

    This field trip will provide an introduction to several fascinating features of Mount St. Helens. The trip begins with a rigorous hike of about 15 km from the Johnston Ridge Observatory (9 km north-northeast of the crater vent), across the 1980 Pumice Plain, to Windy Ridge (3.6 km northeast of the crater vent) to examine features that document the dynamics and progressive emplacement of pyroclastic flows. The next day, we examine classic tephra outcrops of the past 3,900 years and observe changes in thickness and character of these deposits as we traverse their respective lobes. We examine clasts in the deposits and discuss how the petrology and geochemistry of Mount St. Helens deposits reveal the evolution of the magmatic system through time. We also investigate the stratigraphy of the 1980 blast deposit and review the chronology of this iconic eruption as we travel through the remains of the blown-down forest. The third day is another rigorous hike, about 13 km round trip, climbing from the base of Windy Ridge (elevation 1,240 m) to the front of the Crater Glacier (elevation 1,700 m). En route we examine basaltic andesite and basalt lava flows emplaced between 1,800 and 1,700 years before present, a heterolithologic flow deposit produced as the 1980 blast and debris avalanche interacted, debris-avalanche hummocks that are stranded on the north flank and in the crater mouth, and shattered dacite lava domes that were emplaced between 3,900 and 2,600 years before present. These domes underlie the northern part of the volcano. In addition, within the crater we traverse well-preserved pyroclastic-flow deposits that were emplaced on the crater floor during the summer of 1980, and a beautiful natural section through the 1980 deposits in the upper canyon of the Loowit River.Before plunging into the field-trip log, we provide an overview of Mount St. Helens geology, geochemistry, petrology, and volcanology as background. The volcano has been referred to as a

  20. Effects of slope on the formation of dunes in dilute, turbulent pyroclastic currents: May 18th, 1980 Mt. St. Helens eruption

    Science.gov (United States)

    Bendana, Sylvana; Brand, Brittany D.; Self, Stephen

    2014-05-01

    The flanks of Mt St Helens volcano (MSH) are draped with thin, cross-stratified and stratified pyroclastic density current (PDC) deposits. These are known as the proximal bedded deposits produced during the May 18th, 1980 eruption of MSH. While the concentrated portions of the afternoon PDCs followed deep topographic drainages down the steep flanks of the volcano, the dilute overriding cloud partially decoupled to develop fully dilute, turbulent PDCs on the flanks of the volcano (Beeson, D.L. 1988. Proximal Flank Facies of the May 18, 1980 Ignimbrite: Mt. St. Helens, Washington.). The deposits along the flank thus vary greatly from those found in the pumice plain, which are generally thick, massive, poorly-sorted, block-rich deposits associated with the more concentrated portions of the flow (Brand et al, accepted. Dynamics of pyroclastic density currents: Conditions that promote substrate erosion and self-channelization - Mount St Helens, Washington (USA). JVGR). We explore the influence of topography on the formation of these dilute currents and influence of slope on the currents transport and depositional mechanisms. The deposits on steeper slopes (>15°) are fines depleted relative to the proximal bedded deposits on shallower slopes (<15°). Bedform amplitude and wavelength increase with increasing slope, as does the occurrence of regressive dunes. Increasing slope causes an increase in flow velocity and thus an increase in flow turbulence. The fines depleted deposits suggest that fine ash elutriation is more efficient in flows with stronger turbulence. The longer wavelength and amplitudes suggest that bedform morphology is directly related to flow velocity, an important finding since the controls on bedform wavelength and amplitude in density stratified flows remains poorly constrained. The occurrence of regressive dunes, often interpreted as high flow-regime bedforms, on steeper slopes relative to progressive dunes on shallower slopes further attests to the

  1. Risk-return of Belgian SRI funds

    OpenAIRE

    Van Liedekerke, Luc; De Moor, Lieven; Vanwalleghem, Dieter

    2007-01-01

    We analyse the risk-return profile of Belgian SRI funds versus conventional investment funds. We apply a four-factor conditional Carhart model to establish whether there are significant differences in risk-return profile between an SRI portfolio and a conventional portfolio and test for learning effects in SRI funds. We show that there is no difference in risk-return profile between SRI and conventional funds. If return is not the problem, then what is it that limits the development of an SRI...

  2. Money growth and aggregate stock returns

    OpenAIRE

    Böing, Tobias; Stadtmann, Georg

    2016-01-01

    We empirically evaluate the predictive power of money growth measured by M2 for stock returns of the S&P 500 index. We use monthly US data and predict multiperiod returns over 1, 3, and 5 years with long-horizon regressions. In-sample regressions show that money growth is useful for predicting returns. Higher recent money growth has a significantly negative effect on subsequent returns of the S&P 500. An out-of-sample analysis shows that a simple model with money growth as a single predictor ...

  3. Show: Dr. H, the life and death of pancakes

    CERN Multimedia

    2012-01-01

    Dr. H, the life and death of pancakes, a comic theatrical creation, written and performed by Heiko Buchholz.   Monday 2 April 2012 in German Tuesday 3 April 2012 in English Wednesday 4 April 2012 in French 8:30 p.m. at the Globe of Science and Innovation. This production takes a comic look at scientific methods, as applied to a common object: the pancake. More specifically, Dr H. regales his audience with statistics, experiments and scientific data surrounding this egg-and-milk-based culinary delight. And although these zany sketches are nothing short of absurd, the audience is drawn in more often than you might expect… and taken on quite an unexpected journey into the behavioural disorders, personality quirks and psychoanalysis of the base pancake. This show playfully mocks scientific logic and discourse, forcing the audience to reflect on their gullibility in the face of science and its impenetrable jargon. It purports to be neither explanation nor illustration of scientific fact,...

  4. Pathogenesis of Human Diffusely Adhering Escherichia coli Expressing Afa/Dr Adhesins (Afa/Dr DAEC): Current Insights and Future Challenges

    Science.gov (United States)

    2014-01-01

    SUMMARY The pathogenicity and clinical pertinence of diffusely adhering Escherichia coli expressing the Afa/Dr adhesins (Afa/Dr DAEC) in urinary tract infections (UTIs) and pregnancy complications are well established. In contrast, the implication of intestinal Afa/Dr DAEC in diarrhea is still under debate. These strains are age dependently involved in diarrhea in children, are apparently not involved in diarrhea in adults, and can also be asymptomatic intestinal microbiota strains in children and adult. This comprehensive review analyzes the epidemiology and diagnosis and highlights recent progress which has improved the understanding of Afa/Dr DAEC pathogenesis. Here, I summarize the roles of Afa/Dr DAEC virulence factors, including Afa/Dr adhesins, flagella, Sat toxin, and pks island products, in the development of specific mechanisms of pathogenicity. In intestinal epithelial polarized cells, the Afa/Dr adhesins trigger cell membrane receptor clustering and activation of the linked cell signaling pathways, promote structural and functional cell lesions and injuries in intestinal barrier, induce proinflammatory responses, create angiogenesis, instigate epithelial-mesenchymal transition-like events, and lead to pks-dependent DNA damage. UTI-associated Afa/Dr DAEC strains, following adhesin-membrane receptor cell interactions and activation of associated lipid raft-dependent cell signaling pathways, internalize in a microtubule-dependent manner within urinary tract epithelial cells, develop a particular intracellular lifestyle, and trigger a toxin-dependent cell detachment. In response to Afa/Dr DAEC infection, the host epithelial cells generate antibacterial defense responses. Finally, I discuss a hypothetical role of intestinal Afa/Dr DAEC strains that can act as “silent pathogens” with the capacity to emerge as “pathobionts” for the development of inflammatory bowel disease and intestinal carcinogenesis. PMID:25278576

  5. Pathogenesis of human diffusely adhering Escherichia coli expressing Afa/Dr adhesins (Afa/Dr DAEC): current insights and future challenges.

    Science.gov (United States)

    Servin, Alain L

    2014-10-01

    The pathogenicity and clinical pertinence of diffusely adhering Escherichia coli expressing the Afa/Dr adhesins (Afa/Dr DAEC) in urinary tract infections (UTIs) and pregnancy complications are well established. In contrast, the implication of intestinal Afa/Dr DAEC in diarrhea is still under debate. These strains are age dependently involved in diarrhea in children, are apparently not involved in diarrhea in adults, and can also be asymptomatic intestinal microbiota strains in children and adult. This comprehensive review analyzes the epidemiology and diagnosis and highlights recent progress which has improved the understanding of Afa/Dr DAEC pathogenesis. Here, I summarize the roles of Afa/Dr DAEC virulence factors, including Afa/Dr adhesins, flagella, Sat toxin, and pks island products, in the development of specific mechanisms of pathogenicity. In intestinal epithelial polarized cells, the Afa/Dr adhesins trigger cell membrane receptor clustering and activation of the linked cell signaling pathways, promote structural and functional cell lesions and injuries in intestinal barrier, induce proinflammatory responses, create angiogenesis, instigate epithelial-mesenchymal transition-like events, and lead to pks-dependent DNA damage. UTI-associated Afa/Dr DAEC strains, following adhesin-membrane receptor cell interactions and activation of associated lipid raft-dependent cell signaling pathways, internalize in a microtubule-dependent manner within urinary tract epithelial cells, develop a particular intracellular lifestyle, and trigger a toxin-dependent cell detachment. In response to Afa/Dr DAEC infection, the host epithelial cells generate antibacterial defense responses. Finally, I discuss a hypothetical role of intestinal Afa/Dr DAEC strains that can act as "silent pathogens" with the capacity to emerge as "pathobionts" for the development of inflammatory bowel disease and intestinal carcinogenesis. Copyright © 2014, American Society for Microbiology. All Rights

  6. Maximizing your return on people.

    Science.gov (United States)

    Bassi, Laurie; McMurrer, Daniel

    2007-03-01

    Though most traditional HR performance metrics don't predict organizational performance, alternatives simply have not existed--until now. During the past ten years, researchers Laurie Bassi and Daniel McMurrer have worked to develop a system that allows executives to assess human capital management (HCM) and to use those metrics both to predict organizational performance and to guide organizations' investments in people. The new framework is based on a core set of HCM drivers that fall into five major categories: leadership practices, employee engagement, knowledge accessibility, workforce optimization, and organizational learning capacity. By employing rigorously designed surveys to score a company on the range of HCM practices across the five categories, it's possible to benchmark organizational HCM capabilities, identify HCM strengths and weaknesses, and link improvements or back-sliding in specific HCM practices with improvements or shortcomings in organizational performance. The process requires determining a "maturity" score for each practice, based on a scale of 1 (low) to 5 (high). Over time, evolving maturity scores from multiple surveys can reveal progress in each of the HCM practices and help a company decide where to focus improvement efforts that will have a direct impact on performance. The authors draw from their work with American Standard, South Carolina's Beaufort County School District, and a bevy of financial firms to show how improving HCM scores led to increased sales, safety, academic test scores, and stock returns. Bassi and McMurrer urge HR departments to move beyond the usual metrics and begin using HCM measurement tools to gauge how well people are managed and developed throughout the organization. In this new role, according to the authors, HR can take on strategic responsibility and ensure that superior human capital management becomes central to the organization's culture.

  7. Two Millian Arguments: Using Helen Longino’s Approach to Solve the Problems Philip Kitcher Targeted with His Argument on Freedom of Inquiry

    Directory of Open Access Journals (Sweden)

    Jaana Eigi

    2012-12-01

    Full Text Available Philip Kitcher argued that the freedom to pursue one's version of the good life is the main aim of Mill's argument for freedom of expression. According to Kitcher, in certain scientific fields, political and epistemological asymmetries bias research toward conclusions that threaten this most important freedom of underprivileged groups. Accordingly, Kitcher claimed that there are Millian grounds for limiting freedom of inquiry in these fields to protect the freedom of the underprivileged.I explore Kitcher's argument in light of the interpretation Helen Longino gave to Mill's argument. She argued that free critical dialogue in the community allows bias to be overcome, through intersubjective criticism of hypotheses and the background assumptions that frame them.I suggest that Longino's approach allows for the identification of the fundamental problems of the research programs Kitcher targeted, and for the rejection of their claims to knowledge. Thus it is possible to address Kitcher's problem without limiting freedom of speech.

  8. Cyclic pressurisation of Mount St Helens dacites and basalt. Laboratory results and implications for lava dome monitoring

    Science.gov (United States)

    Kendrick, Jackie; Dainty, Matthew; Smith, Rosanna; Sammonds, Peter; Pallister, John; Meredith, Phillip

    2010-05-01

    Lava domes are frequently subjected to cyclic heating and pressurisation, which may weaken the dome rocks, leading to renewed extrusion, explosions or collapse. These heating and loading cycles can be recreated in the laboratory, allowing the level of crack damage caused by these cycles to be established through analysing elastic moduli. Acoustic emissions (AEs) indicate the timing of cracking, and can also be used to interpret precursory seismicity for eruption prediction. Experiment samples are from Mount St. Helens, USA: 3 dacites from the Pine Creek eruptive period (2.9-2.55 ka), a Castle Creek age basalt (2.55-1.895 ka), and 4 dacites from the 2004-2008 eruption. Each sample was cut into several cylindrical cores (25 mm diameter and 62.5-70 mm long). Some samples were then heated and cooled at 1˚C/ minute to a target temperature of 600o C or 900o C, and held for 2 hours to achieve thermal equilibrium. This heating can cause cracking due to contrasts in thermal expansion of different minerals. Dynamic elastic moduli were calculated for each sample using ultrasonic wave velocity, density and porosity for later comparison to static elastic moduli gathered during deformation. One core of each sample was loaded to failure in uniaxial compression in order to find the short term strength of the sample. For all cyclic loading tests, conducted on pre-heated and unheated cores, samples were loaded at 10-5 s-1 strain rate then unloaded to 5MPa. Subsequent cycles had an increasing peak load. Most had the same rate for unloading, with a few samples unloaded instantaneously. Axial, radial and volumetric strain were determined from the recorded displacement throughout the experiment and used with the axial stress measurements to calculate static elastic moduli. Samples loaded to failure with no cycling generally failed at higher stresses than their cyclically loaded counter-parts, whilst rapid unloading increased their strength. Failure stresses of the dacite lava dome

  9. Return-to-Work Program for Injured Workers: Factors of Successful Return to Employment.

    Science.gov (United States)

    Awang, Halimah; Shahabudin, Sharifah Muhairah; Mansor, Norma

    2016-11-01

    This study examined the factors of successful return to employment among participants in the return to work program (RTW) following work-related injury. Data were obtained from the Social Security Organization database containing 9850 injured workers who underwent RTW in 2010 to 2013. About 65% had successfully returned to employment. Significant factors of successful return include gender, employer interest, motivation, age, intervention duration, and type of injury. Male and motivated employees were more likely to return to employment compared with female and unmotivated employees, respectively. Participants from interested employers were 23.22 times more likely to return to work than those from uninterested employers, whereas participants whose intervention period exceeded 5 months were 41% less likely to return to work compared with those whose intervention period was within 3 months. Appropriate strategy and enhanced collaboration between the stakeholders would improve the proportion of successful return to employment. © 2016 APJPH.

  10. Popmuusika / Helen Sildna

    Index Scriptorium Estoniae

    Sildna, Helen

    2005-01-01

    Uutest heliplaatidest Maxence Cyrin "Modern Rhapsodies", Mint Royale "See You In The Morning", Robbie Williams "Intesive", The Paddingtons "Fist Comes", Frank Sinatra With Tommy Dorsey "The Essential", Deep Purple "Rapture Of The Deep", Oleg Pissarenko "The Book's Burning"

  11. Põlisrahvaste deklaratsioon / Helen Arusoo

    Index Scriptorium Estoniae

    Arusoo, Helen, 1972-

    2010-01-01

    Urmas Sisask kuulutas Tuhala Nõiakaevu kaitseks välja Tuhala ja Nabala karstialadel rahvusvahelise tähtsusega looduskaitsealaks toetudes internetis kogutud 60 000 toetusallkirjale ja 2007. aastal Eesti poolt allkirjastatud ÜRO põlisrahvaste õiguste deklaratsioonile web-static.vm.ee/static/failid/298/Polisrahvaste_deklaratsioon_EST.pdf

  12. Betoonist videograafika / Helen Kivisoo

    Index Scriptorium Estoniae

    Kivisoo, Helen

    2001-01-01

    12. augustini Helsingis MUU galeriis Jasper Zoova videoinstallatsioon "Hebel - Betoonehitus uuest aspektist" ja Tuukka Kaila (Soome) fotod "Heissulivei - Vaadake kui ilus - Check out me and my country".

  13. DR6 as a diagnostic and predictive biomarker in adult sarcoma.

    Directory of Open Access Journals (Sweden)

    Kun Yang

    Full Text Available The Death Receptor 6 (DR6 protein is elevated in the serum of ovarian cancer patients. We tested DR6 serum protein levels as a diagnostic/predictive biomarker in several epithelial tumors and sarcomas.DR6 gene expression profiles were screened in publically available arrays of solid tumors. A quantitative immunofluorescent western blot analysis was developed to test the serum of healthy controls and patients with sarcoma, uterine carcinosarcoma, bladder, liver, and pancreatic carcinomas. Change in DR6 serum levels was used to assay the ability of DR6 to predict the response to therapy of sarcoma patients.DR6 mRNA is highly expressed in all tumor types assayed. Western blot analysis of serum DR6 protein demonstrated high reproducibility (r = 0.97. Compared to healthy donor controls, DR6 serum levels were not elevated in patients with uterine carcinosarcoma, bladder, liver, or pancreatic cancers. Serum DR6 protein levels from adult sarcoma patients were significantly elevated (p<0.001. This was most evident for patients with synovial sarcoma. Change in serum DR6 levels during therapy correlated with clinical benefit from therapy (sensitivity 75%, and positive predictive value 87%.DR6 may be a clinically useful diagnostic and predictive serum biomarker for some adult sarcoma subtypes.Diagnosis of sarcoma can be difficult and can lead to improper management of these cancers. DR6 serum protein may be a tool to aid in the diagnosis of some sarcomatous tumors to improve treatment planning. For patients with advanced disease, rising DR6 levels predict non-response to therapy and may expedite therapeutic decision making and reduce reliance on radiologic imaging.

  14. Return on Investment from Biochar Application

    Science.gov (United States)

    Current literature has yet to fully address the cost of biochar application or the return on investment to the grower. The objectives were to identify possible on-farm spreader equipment, spreader capacity, application expenses, and rate of return needed for growers to apply biochar economically. Bi...

  15. Aggregate Unemployment Decreases Individual Returns to Education

    Science.gov (United States)

    Ammermueller, Andreas; Kuckulenz, Anja; Zwick, Thomas

    2009-01-01

    Aggregate unemployment may affect individual returns to education through qualification-specific responses in participation and wage bargaining. This paper shows that an increase in regional unemployment by 1% decreases returns to education by 0.005 percentage points. This implies that higher skilled employees are better sheltered from labour…

  16. A Perishable Inventory Model with Return

    Science.gov (United States)

    Setiawan, S. W.; Lesmono, D.; Limansyah, T.

    2018-04-01

    In this paper, we develop a mathematical model for a perishable inventory with return by assuming deterministic demand and inventory dependent demand. By inventory dependent demand, it means that demand at certain time depends on the available inventory at that time with certain rate. In dealing with perishable items, we should consider deteriorating rate factor that corresponds to the decreasing quality of goods. There are also costs involved in this model such as purchasing, ordering, holding, shortage (backordering) and returning costs. These costs compose the total costs in the model that we want to minimize. In the model we seek for the optimal return time and order quantity. We assume that after some period of time, called return time, perishable items can be returned to the supplier at some returning costs. The supplier will then replace them in the next delivery. Some numerical experiments are given to illustrate our model and sensitivity analysis is performed as well. We found that as the deteriorating rate increases, returning time becomes shorter, the optimal order quantity and total cost increases. When considering the inventory-dependent demand factor, we found that as this factor increases, assuming a certain deteriorating rate, returning time becomes shorter, optimal order quantity becomes larger and the total cost increases.

  17. Slow return of displaced Southern Sudanese

    Directory of Open Access Journals (Sweden)

    Tim Morris

    2007-07-01

    Full Text Available The pace of repatriation of Sudanese refugees and return of IDP s to South Sudan has picked up but expectations at the time of the signing of the Comprehensive Peace Agreement (CPA CPA in January 2005 have yet to be realised. With all eyes on Darfur, assistance to sustain returns to South Sudan remains inadequate.

  18. Managing Returns in a Catalog Distribution Center

    Science.gov (United States)

    Gates, Joyce; Stuart, Julie Ann; Bonawi-tan, Winston; Loehr, Sarah

    2004-01-01

    The research team of the Purdue University in the United States developed an algorithm that considers several different factors, in addition to cost, to help catalog distribution centers process their returns more efficiently. A case study to teach the students important concepts involved in developing a solution to the returns disposition problem…

  19. 27 CFR 41.112 - Tax return.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2010-04-01 2010-04-01 false Tax return. 41.112 Section 41.112 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF... States Deferred Payment of Tax in Puerto Rico on Tobacco Products § 41.112 Tax return. The internal...

  20. Economic and accounting rates of return

    NARCIS (Netherlands)

    Feenstra, D.W.; Wang, H.

    2000-01-01

    The rate of return on invested capital is a central concept in financial analysis. The purpose of calculating the rate of return on investment in general is to measure the financial performance, to assess the desirability of a project and to make decisions on the valuation of firms. Financial

  1. The Returns to Quality in Graduate Education

    Science.gov (United States)

    Stevenson, Adam

    2016-01-01

    This paper estimates the monetary return to quality in US graduate education, controlling for cognitive ability and self-selection across award level, program quality, and field-of-study. In most program types, I cannot reject the hypothesis of no returns to either degree completion or program quality. Important exceptions include master's…

  2. Predictability of Returns and Cash Flows

    OpenAIRE

    Ralph S.J. Koijen; Stijn Van Nieuwerburgh

    2010-01-01

    We review the literature on return and cash-flow growth predictability from the perspective of the present-value identity. We focus predominantly on recent work. Our emphasis is on U.S. aggregate stock return predictability, but we also discuss evidence from other asset classes and countries.

  3. Legal institutions, strategic default, and stock returns

    NARCIS (Netherlands)

    Favara, G.; Schroth, E.; Valta, P.

    2008-01-01

    This paper studies the impact of legal institutions on stock returns. More specifically, we examine how differences in debt enforcement and creditor protection around the world affect stock returns of individual firms. We hypothesize that if legal institutions prevent shareholders from engaging in

  4. Return to Experience and Initial Wage Level

    DEFF Research Database (Denmark)

    Sørensen, Kenneth Lykke; Vejlin, Rune Majlund

    This paper estimates the relationship between initial wage and return to experience. We use a Mincer-like wage model to nonparametrically estimate this relationship allowing for an unobservable individual permanent effect in wages and unobservable individual return to experience. The relationship...

  5. Return to experience and initial wage level

    DEFF Research Database (Denmark)

    Sørensen, K.L.; Vejlin, R.

    2014-01-01

    This paper estimates the relationship between initial wage and return to experience. We use a Mincer-like wage model to non-parametrically estimate this relationship allowing for an unobservable individual permanent effect in wages and unobservable individual return to experience. The relationshi...

  6. Returnable containers: an example of reverse logistics

    NARCIS (Netherlands)

    L.G. Kroon (Leo); G.M.C. Vrijens

    1996-01-01

    textabstractConsiders the application of returnable containers as an example of reverse logistics. A returnable container is a type of secondary packaging that can be used several times in the same form, in contrast with traditional cardboard boxes. For this equipment to be used, a system for the

  7. Return to the workforce following infective endocarditis

    DEFF Research Database (Denmark)

    Butt, Jawad H.; Kragholm, Kristian; Dalager-Pedersen, Michael

    2018-01-01

    Background The ability to return to work after infective endocarditis (IE) holds important socioeconomic consequences for both patients and society, yet data on this issue are sparse. We examined return to the workforce and associated factors in IE patients of working age. Methods Using Danish...

  8. Husbands' return migration and wives' occupational choices

    NARCIS (Netherlands)

    Mahe, Clotilde

    2017-01-01

    Exploiting the documented effect of migration on occupational choice upon return to their origin country with data from Egypt, we establish a link between return migration of men and their wives' time use through within-couple occupational interdependence. Seemingly Unrelated Regression model

  9. Parasitic diseases in the returning traveller

    African Journals Online (AJOL)

    2009-06-11

    Jun 11, 2009 ... exception is infection with schistosomiasis after leisure activities in infested freshwater. (the water sports enthusiast returning from a sojourn on Lake Malawi .... are harbouring a 'blind passenger' from abroad. However, long-term travellers, both private or business, should be screened on return. A thorough ...

  10. Constraining the Magmatic System at Mount St. Helens (2004-2008) Using Bayesian Inversion With Physics-Based Models Including Gas Escape and Crystallization

    International Nuclear Information System (INIS)

    Wong, Ying-Qi; Segall, Paul; Bradley, Andrew; Anderson, Kyle

    2017-01-01

    Physics-based models of volcanic eruptions track conduit processes as functions of depth and time. When used in inversions, these models permit integration of diverse geological and geophysical data sets to constrain important parameters of magmatic systems. We develop a 1-D steady state conduit model for effusive eruptions including equilibrium crystallization and gas transport through the conduit and compare with the quasi-steady dome growth phase of Mount St. Helens in 2005. Viscosity increase resulting from pressure-dependent crystallization leads to a natural transition from viscous flow to frictional sliding on the conduit margin. Erupted mass flux depends strongly on wall rock and magma permeabilities due to their impact on magma density. Including both lateral and vertical gas transport reveals competing effects that produce nonmonotonic behavior in the mass flux when increasing magma permeability. Using this physics-based model in a Bayesian inversion, we link data sets from Mount St. Helens such as extrusion flux and earthquake depths with petrological data to estimate unknown model parameters, including magma chamber pressure and water content, magma permeability constants, conduit radius, and friction along the conduit walls. Even with this relatively simple model and limited data, we obtain improved constraints on important model parameters. We find that the magma chamber had low (<5 wt %) total volatiles and that the magma permeability scale is well constrained at ~10 –11.4 m 2 to reproduce observed dome rock porosities. Here, compared with previous results, higher magma overpressure and lower wall friction are required to compensate for increased viscous resistance while keeping extrusion rate at the observed value.

  11. Evidence for degassing of fresh magma during the 2004-2008 eruption of Mount St. Helens: Subtle signals from the hydrothermal system

    Science.gov (United States)

    Bergfeld, Deborah; Evans, William C.; Spicer, Kurt R.; Hunt, Andrew G.; Kelly, Peter

    2017-01-01

    Results from chemical and isotopic analyses of water and gas collected between 2002 and 2016 from sites on and around Mount St. Helens are used to assess magmatic degassing related to the 2004-2008 eruption. During 2005 the chemistry of hot springs in The Breach of Mount St. Helens showed no obvious response to the eruption, and over the next few years, changes were subtle, giving only slight indications of perturbations in the system. By 2010 however, water chemistry, temperatures, and isotope compositions (δD and δ18O) clearly indicated some inputs of volatiles and heat associated with the eruption, but the changes were such that they could be attributed to a pre-existing, gas depleted magma. An increase of ~ 1.5‰ in the δ13C values of dissolved carbon in the springs was noted in 2006 and continued through 2009, a change that was mirrored by a similar shift in δ13C-CO2 in bubble gas emissions. These changes require input of a new source of carbon to the hydrothermal system and provide clear evidence of CO2 from an undegassed body of magma. Rising trends in 3He/4He ratios in gas also accompanied the increases in δ13C. Since 2011 maximum RC/RA values are ≥ 6.4 and are distinctly higher than 5 samples collected between 1986 and 2002, and provide additional evidence for some involvement of new magma as early as 2006, and possibly earlier, given the unknown time needed for CO2 and He to traverse the system and arrive at the springs.

  12. PROFIL LEUKOKORIA PADA ANAK DI RSUP Dr. M. DJAMIL PADANG

    Directory of Open Access Journals (Sweden)

    Kemala Sayuti

    2014-05-01

    Full Text Available AbstrakTujuan penelitian ini ialah menilai penyebab leukokoria pada pasien anak di RSUP Dr. M. Djamil Padang dengan rancang studi cross sectional. Data dikumpulkan dari medical record pasien dengan riwayat leukokoria atau pupil putih yang berusia kurang dari 13 tahun di bagian mata RSUP Dr M Djamil Padang periode Oktober 2009 Februari 2011. Diagnosis banding disingkirkan melalui pemeriksaan USG dan patologi. Dari 36 pasien dengan leukokoria, 21 orang (58,3% laki-laki dan umur rata-rata 31,3 bulan. Penyebab leukokoria adalah retinoblastoma 12 pasien (33,4%, tiga diantaranya bilateral, katarak kongenital 11 pasien (30,5%, delapan diantaranya bilateral, katarak traumatika 5 pasien (13,8%, uveitis intra uterin 2 pasien (5,5%, keduanya bilateral, dan ROP 2 pasien (5,5%, satu diantaranya bilateral. Kami juga menemukan penyebab lain, masing-masing satu pasien dengan leukokoria unilateral, antara lain: PHPV (2,7%, endoftalmitis eksogen (2,7%, uveitis anterior (2,7%, dan glioma nervus optikus (2,7%. Sangat krusial mengetahui perbedaan gambaran klinik retinoblastoma dan katarak kongenital, karena pengobatannya berbeda, dan retinoblastoma mengancam kehidupan, sedangkan katarak kongenital mengancam penglihatan.AbstractThe objective of this study was to determine the etiology of leukocoria in children using cross sectional study conducted in eye clinic of Dr. M. Djamil Hospital Padang. Samples were taken from medical records of patients with children leukocoria during the period of October 2009 to February 2011. Differential diagnosis eliminated by USG and pathology examination. There were 36 children with leukocoria in total, 21 of them were boys (58,3%. The mean age was 31.3 months old. The causes of leukocoria were retinoblastoma in 12 patients (33,4% three of them were bilateral, followed respectively by congenital cataract in 11 patients (30.5% which 8 of them were bilateral, traumatic cataract in 5 patients (13.8%, intrauterine uveitis in 2 patients (5

  13. The Risk Return Relationship: Evidence from Index Return and Realised Variance Series

    OpenAIRE

    Minxian Yang

    2014-01-01

    The risk return relationship is analysed in bivariate models for return and realised variance(RV) series. Based on daily time series from 21 international market indices for more than 13 years (January 2000 to February 2013), the empirical findings support the arguments of risk return tradeoff, volatility feedback and statistical balance. It is reasoned that the empirical risk return relationship is primarily shaped by two important data features: the negative contemporaneous correlation betw...

  14. Return currents in solar flares - Collisionless effects

    Science.gov (United States)

    Rowland, H. L.; Vlahos, L.

    1985-01-01

    If the primary, precipitating electrons in a solar flare are unstable to beam plasma interactions, it is shown that strong Langmuir turbulence can seriously modify the way in which a return current is carried by the background plasma. In particular, the return (or reverse) current will not be carried by the bulk of the electrons, but by a small number of high velocity electrons. For beam/plasma densities greater than 0.01, this can reduce the effects of collisions on the return current. For higher density beams where the return current could be unstable to current driven instabilities, the effects of strong turbulence anomalous resistivity is shown to prevent the appearance of such instabilities. Again in this regime, how the return current is carried is determined by the beam generated strong turbulence.

  15. Poetic Return in Afghanistan Persian Poem

    Directory of Open Access Journals (Sweden)

    Esmaeil Shafagh

    2012-11-01

    Full Text Available Abstract Poetic return movement was started by a group of poets like Moshtagh and Shole Esfehani in the second half of 12 century. Their goal was restoring Persian poem and deliverance of Hindi style decline. Esfahan’s poets initiative was considered only in Iran but in other Persian language and literature areas like India, Afghanistan and Transoxiana it was ignored. After the failure of constitutional Movement in Afghanistan, motion similar poetic return was happened that caused poetic themes, which had gone towards modernism, return to Hindi style again.The present paper attempts to analyze the poetic atmosphere in Afghanistan synchronous the poetic return movement in Iran and investigate socio- political backgrounds of return to Hindi style in Afghanistan after constitution failure.

  16. 75 FR 76940 - Specified Tax Return Preparers Required To File Individual Income Tax Returns Using Magnetic...

    Science.gov (United States)

    2010-12-10

    ... DEPARTMENT OF THE TREASURY Internal Revenue Service 26 CFR Parts 1 and 301 [REG-100194-10] RIN 1545-BJ52 Specified Tax Return Preparers Required To File Individual Income Tax Returns Using Magnetic... for ``specified tax return prepares,''. FOR FURTHER INFORMATION CONTACT: Keith L. Brau at (202) 622...

  17. 26 CFR 1.6013-2 - Joint return after filing separate return.

    Science.gov (United States)

    2010-04-01

    ... the case of a joint return made under section 6013(b), the period of limitations provided in sections... (c)(1) of this section, relating to the application of sections 6501 and 6651 with respect to a joint... 26 Internal Revenue 13 2010-04-01 2010-04-01 false Joint return after filing separate return. 1...

  18. Verifying reddening and extinction for Gaia DR1 TGAS giants

    Science.gov (United States)

    Gontcharov, George A.; Mosenkov, Aleksandr V.

    2018-03-01

    Gaia DR1 Tycho-Gaia Astrometric Solution parallaxes, Tycho-2 photometry, and reddening/extinction estimates from nine data sources for 38 074 giants within 415 pc from the Sun are used to compare their position in the Hertzsprung-Russell diagram with theoretical estimates, which are based on the PARSEC and MIST isochrones and the TRILEGAL model of the Galaxy with its parameters being widely varied. We conclude that (1) some systematic errors of the reddening/extinction estimates are the main uncertainty in this study; (2) any emission-based 2D reddening map cannot give reliable estimates of reddening within 415 pc due to a complex distribution of dust; (3) if a TRILEGAL's set of the parameters of the Galaxy is reliable and if the solar metallicity is Z 50°, give the best fit of the empirical and theoretical data with each other.

  19. [Interculturality in the medical practice of Dr. Albert Schweitzer].

    Science.gov (United States)

    Campos-Navarro, Roberto; Ruiz-Llanos, Adriana

    2004-01-01

    Albert Schweitzer (1875-1965) was a young and promising German who at age 29 decided to undertake the profession of Medical Doctor at the University of Strassburg after finishing a career in musical studies in Paris (1899) and obtaining in Berlin a doctoral degree in Philosophy and Theology. Surprisingly, Albert Schweitzer, despite his comfortable life in Europe, decided in 1913 to practice his medical career in a remote and small Equatorial African country. He devoted nearly 50 years of his life caring for the Black population at Lamaberene, where he built a hospital. In this paper, we attempt to develop some theoretical aspects related with interculturality in the medical practice of Dr. Albert Schweitzer. We begin by considering certain sociocultural variables in hospitals that give care to patients with cultural characteristics that are substantially different from those of the health care personnel who organize, administer, and execute medical functions.

  20. The Chymistry of "The Learned Dr Plot" (1640-96).

    Science.gov (United States)

    Roos, Anna Marie

    2014-01-01

    In the seventeenth century, there were developing norms of openness in the presentation of scientific knowledge that were at odds with traditions of secrecy among chymists, particularly practitioners of chrysopoeia, or the transmutation of metals. This chapter analyzes how Dr. Robert Plot, the first professor of chymistry at Oxford, negotiated these boundaries within an institutional context. I first delineate his chymical and experimental practice, which incorporated procedures from medieval alchemical sources, particularly the Lullian corpus, as well as more novel practices from seventeenth-century chymistry. Then, I analyze how personal and institutional ambitions and economic considerations shaped to what extent Plot negotiated the boundaries between secrecy and the public dissemination of chymical knowledge.

  1. GPS/DR Error Estimation for Autonomous Vehicle Localization.

    Science.gov (United States)

    Lee, Byung-Hyun; Song, Jong-Hwa; Im, Jun-Hyuck; Im, Sung-Hyuck; Heo, Moon-Beom; Jee, Gyu-In

    2015-08-21

    Autonomous vehicles require highly reliable navigation capabilities. For example, a lane-following method cannot be applied in an intersection without lanes, and since typical lane detection is performed using a straight-line model, errors can occur when the lateral distance is estimated in curved sections due to a model mismatch. Therefore, this paper proposes a localization method that uses GPS/DR error estimation based on a lane detection method with curved lane models, stop line detection, and curve matching in order to improve the performance during waypoint following procedures. The advantage of using the proposed method is that position information can be provided for autonomous driving through intersections, in sections with sharp curves, and in curved sections following a straight section. The proposed method was applied in autonomous vehicles at an experimental site to evaluate its performance, and the results indicate that the positioning achieved accuracy at the sub-meter level.

  2. National radiobiology archives Dr. J. Newell Stannard Collection Inventory Listing

    International Nuclear Information System (INIS)

    Watson, C.R.; Ligotke, E.K.; Smith, S.K.

    1994-11-01

    This document describes the National Radiobiology Archives (NRA) J. Newell Stannard Collection. Items in the Stannard Collection are available upon written request. The written correspondence should identify specific items, or the topic of the items, to be retrieved from the NRA holdings. The NRA is a Department of Energy Office of Health and Environmental Research (DOE/OHER) funded project at Pacific Northwest Laboratory (PNL). Dr. Charles R. Watson, telephone (509) 376-3483, is the project director. The NRA project is a comprehensive effort to gather, organize, and catalog data, tissues, and documents related to radiobiology studies. This archiving activity will provide future researchers with information for statistical analyses to compare results of these and other studies and materials for analysis and application of advanced molecular biology techniques

  3. Dr. Euler's fabulous formula Cures many mathematical ills

    CERN Document Server

    Nahin, Paul J

    2006-01-01

    I used to think math was no fun'Cause I couldn't see how it was doneNow Euler's my heroFor I now see why zeroEquals e[pi] i+1--Paul Nahin, electrical engineer In the mid-eighteenth century, Swiss-born mathematician Leonhard Euler developed a formula so innovative and complex that it continues to inspire research, discussion, and even the occasional limerick. Dr. Euler's Fabulous Formula shares the fascinating story of this groundbreaking formula--long regarded as the gold standard for mathematical beauty--and shows why it still lies at the heart of complex number theory. This book is the seque

  4. A 10,000 YEAR OLD EXPLOSION IN DR21

    International Nuclear Information System (INIS)

    Zapata, Luis A.; Pérez-Goytia, Nadia; Rodríguez, Luis F.; Loinard, Laurent; Schmid-Burgk, Johannes; Ho, Paul T. P.; Cruz-González, Irene

    2013-01-01

    Sensitive high angular resolution (∼2'') CO(2-1) line observations made with the Submillimeter Array of the flow emanating from the high-mass star-forming region DR21 located in the Cygnus X molecular cloud are presented. These new interferometric observations indicate that this well known enigmatic outflow appears to have been produced by an explosive event that took place about 10,000 years ago, and that might be related to the disintegration of a massive stellar system such as the one that occurred in Orion Becklin-Neugebauer/Kleinman-Low 500 years ago, but about 20 times more energetic. This result therefore argues in favor of the idea that the disintegration of young stellar systems perhaps is a frequent phenomenon present during the formation of massive stars. However, many more theoretical and observational studies are still needed to confirm our hypothesis.

  5. GPS/DR Error Estimation for Autonomous Vehicle Localization

    Directory of Open Access Journals (Sweden)

    Byung-Hyun Lee

    2015-08-01

    Full Text Available Autonomous vehicles require highly reliable navigation capabilities. For example, a lane-following method cannot be applied in an intersection without lanes, and since typical lane detection is performed using a straight-line model, errors can occur when the lateral distance is estimated in curved sections due to a model mismatch. Therefore, this paper proposes a localization method that uses GPS/DR error estimation based on a lane detection method with curved lane models, stop line detection, and curve matching in order to improve the performance during waypoint following procedures. The advantage of using the proposed method is that position information can be provided for autonomous driving through intersections, in sections with sharp curves, and in curved sections following a straight section. The proposed method was applied in autonomous vehicles at an experimental site to evaluate its performance, and the results indicate that the positioning achieved accuracy at the sub-meter level.

  6. Mr. Jan Hendrik Bannier and Dr. Gosta Funke

    CERN Document Server

    CERN PhotoLab

    1966-01-01

    (on the left) : Mr. Jan Hendrik Bannier has been President of the Council at CERN for the years 1964, 1965 and 1966 and was President of the Finance Committee from 1958 to 1960. He is now a member of the Site Evaluation Panel for the 300 GeV accelerator project. In the Netherlands, he is Director of ZWO (Organization for the Advancement of Pure Research) and also Vice-President of the National Commission for UNESCO. (on the right) : Dr. Gosta Funke, who has represented his country at CERN Council sessions since the beginning of the Organization, was elected President of the Council for 1967 at its Thirty-third Session, in December. In Sweden, he has been Secretary-General of the State Council for Atomic Research since 1959. He is also President of the Council of ESO (European Southern Observatory), an organization building in Chili.

  7. Prof dr FJ van Zyl as mens, kerkman en godsdiensfilosoof

    Directory of Open Access Journals (Sweden)

    P. J. van der Merwe

    1989-01-01

    Full Text Available Prof Dr FJ van Zyl as person, church personality and philosopher of religion Professor Francois Jacobus van Zyl (1913-05-06 - served as Head of the Department of Science of Religion and Missiology, Faculty of Theology (Section: Nederduitsch Hervormde Kerk, University of Pretoria, during the period 1960-1978. This article (written by a former student of his and present Head of the same Department contains a short biography, a discussion of his views on Theology, Science of Religion and Philosophy of Religion, and a bibliography. He is portrayed as a theologian with Barthian convictions, while been influenced by Emil Brunner and to a lesser extent by Hendrik Kraemer also. His primary audience was the Nederduitsch Hervormde Kerk and his theological activities (especially in the period 1960-1983 must be seen in relation to his influential role in same church.

  8. Musikvideo og tilskuer: Fjernsyn, ideologi og drøm

    Directory of Open Access Journals (Sweden)

    Marsha Kinder

    1987-08-01

    Full Text Available Denne artikel af Marcha Kinder er allerede en klassiker. I næsten al litteratur om musikvideoer henvises der til den - også herhjemme. Det er især hendes typologi over musikvideoerne, som der refereres til, mens artiklens percep- tionspsykologiske sammenligninger mellem musikvideoer og drømme næsten ikke har været inddraget i debatten. Marcha Kinder har arbejdet med medier i en årrække og udgav sammen med Beverle Houston "Self and Cinema A Transformalist Perspective" /(Redgrave Publishing Vompany i 1980. Artiklen "Musikvideo og tilskuer" er oversat i sin helhed fra "Music Video and the Spectator": Television, Ideology and Dream, Film Quarterly, vol. XXXVIII, no. I 1984 af Jim Høyer.

  9. Peptide binding predictions for HLA DR, DP and DQ molecules

    DEFF Research Database (Denmark)

    Wang, P.; Sidney, J.; Kim, Y.

    2010-01-01

    a significant gap in knowledge as HLA DP and DQ molecules are presumably equally important, and have only been studied less because they are more difficult to handle experimentally. RESULTS: In this study, we aimed to narrow this gap by providing a large scale dataset of over 17,000 HLA-peptide binding...... affinities for a set of 11 HLA DP and DQ alleles. We also expanded our dataset for HLA DR alleles resulting in a total of 40,000 MHC class II binding affinities covering 26 allelic variants. Utilizing this dataset, we generated prediction tools utilizing several machine learning algorithms and evaluated...... include all training data for maximum performance. 4) The recently developed NN-align prediction method significantly outperformed all other algorithms, including a naïve consensus based on all prediction methods. A new consensus method dropping the comparably weak ARB prediction method could outperform...

  10. User's Manual for FEMOM3DR. Version 1.0

    Science.gov (United States)

    Reddy, C. J.

    1998-01-01

    FEMoM3DR is a computer code written in FORTRAN 77 to compute radiation characteristics of antennas on 3D body using combined Finite Element Method (FEM)/Method of Moments (MoM) technique. The code is written to handle different feeding structures like coaxial line, rectangular waveguide, and circular waveguide. This code uses the tetrahedral elements, with vector edge basis functions for FEM and triangular elements with roof-top basis functions for MoM. By virtue of FEM, this code can handle any arbitrary shaped three dimensional bodies with inhomogeneous lossy materials; and due to MoM the computational domain can be terminated in any arbitrary shape. The User's Manual is written to make the user acquainted with the operation of the code. The user is assumed to be familiar with the FORTRAN 77 language and the operating environment of the computers on which the code is intended to run.

  11. A 10,000 YEAR OLD EXPLOSION IN DR21

    Energy Technology Data Exchange (ETDEWEB)

    Zapata, Luis A.; Perez-Goytia, Nadia; Rodriguez, Luis F.; Loinard, Laurent [Centro de Radioastronomia y Astrofisica, UNAM, Apdo. Postal 3-72 (Xangari), 58089 Morelia, Michoacan (Mexico); Schmid-Burgk, Johannes [Max-Planck-Institut fuer Radioastronomie, Auf dem Huegel 69, D-53121 Bonn (Germany); Ho, Paul T. P. [Academia Sinica Institute of Astronomy and Astrophysics, Taipei, Taiwan (China); Cruz-Gonzalez, Irene [Instituto de Astronomia, Universidad Nacional Autonoma de Mexico, Ap. 70-264, 04510 DF (Mexico)

    2013-03-10

    Sensitive high angular resolution ({approx}2'') CO(2-1) line observations made with the Submillimeter Array of the flow emanating from the high-mass star-forming region DR21 located in the Cygnus X molecular cloud are presented. These new interferometric observations indicate that this well known enigmatic outflow appears to have been produced by an explosive event that took place about 10,000 years ago, and that might be related to the disintegration of a massive stellar system such as the one that occurred in Orion Becklin-Neugebauer/Kleinman-Low 500 years ago, but about 20 times more energetic. This result therefore argues in favor of the idea that the disintegration of young stellar systems perhaps is a frequent phenomenon present during the formation of massive stars. However, many more theoretical and observational studies are still needed to confirm our hypothesis.

  12. The future of nursing: how important is discipline-specific knowledge? A conversation with Jacqueline Fawcett. Interview by Dr. Janie Butts and Dr. Karen Rich.

    Science.gov (United States)

    Fawcett, Jacqueline

    2012-04-01

    Nurses have long attempted to secure a unique identity for the profession. Many scholars are now promoting an interdisciplinary framework for nursing practice. Fawcett is convinced that interdisciplinary practice poses a danger for nursing to lose its identity and that interdisciplinary practice cannot be successful if members of each discipline do not understand the conceptual models, practice, and research of their own discipline. Dr. Janie Butts and Dr. Karen Rich interviewed Dr. Jacqueline Fawcett about her views related to discipline-specific knowledge and nursing's future. The authors conclude that Fawcett's scientific foundation gives nursing the solidarity and power necessary to determine the unique internal goods of its practice.

  13. Return to sports after shoulder arthroplasty

    Science.gov (United States)

    Johnson, Christine C; Johnson, Daniel J; Liu, Joseph N; Dines, Joshua S; Dines, David M; Gulotta, Lawrence V; Garcia, Grant H

    2016-01-01

    Many patients prioritize the ability to return to sports following shoulder replacement surgeries, including total shoulder arthroplasty (TSA), reverse total shoulder arthroplasty (RTSA), and hemiarthroplasty (HA). While activity levels after hip and knee replacements have been well-established in the literature, studies on this topic in the field of shoulder arthroplasty are relatively limited. A review of the literature regarding athletic activity after shoulder arthroplasty was performed using the PubMed database. All studies relevant to shoulder arthroplasty and return to sport were included. The majority of patients returned to their prior level of activity within six months following TSA, RTSA, and shoulder HA. Noncontact, low demand activities are permitted by most surgeons postoperatively and generally have higher return rates than contact sports or high-demand activities. In some series, patients reported an improvement in their ability to participate in sports following the arthroplasty procedure. The rates of return to sports following TSA (75%-100%) are slightly higher than those reported for HA (67%-76%) and RTSA (75%-85%). Patients undergoing TSA, RTSA, and shoulder HA should be counseled that there is a high probability that they will be able to return to their preoperative activity level within six months postoperatively. TSA has been associated with higher rates of return to sports than RTSA and HA, although this may reflect differences in patient population or surgical indication. PMID:27672564

  14. Utility allowed returns and market extremes

    International Nuclear Information System (INIS)

    Murry, D.A.; Nan, G.D.; Harrington, B.M.

    1993-01-01

    In recent years interest rates have fluctuated from exceptionally high levels in the early 1980s to their current levels, the lowest in two decades. Observers and analysts generally have assumed that allowed returns by regulatory commissions follow the movement of interest rates; indeed some analysts use a risk premium method to estimate the cost of common equity, assuming a constant and linear relationship between interest rates and the cost of common equity. That suggests we could expect a relatively stable relationship between interest rates and allowed returns, as well. However, a simple comparison of allowed returns and interest rates shows that this is not the case in recent years. The relationship between market interest rates and the returns allowed by commissions varies and is obviously a great deal more complicated. Empirically, there appears to be only a narrow range where market interest rates significantly affect the allowed returns on common stock set by state commissions, at least for electric and combination utilities. If rates are at historically low levels, allowed returns based largely on market rates will hasten subsequent rate filings, and commissions appear to look beyond the low rate levels. Conversely, it appears that regulators do not let historically high market rates determine allowed returns either. At either high or low interest levels, caution seems to be the policy

  15. Effectiveness of Securities with Fuzzy Probabilistic Return

    Directory of Open Access Journals (Sweden)

    Krzysztof Piasecki

    2011-01-01

    Full Text Available The generalized fuzzy present value of a security is defined here as fuzzy valued utility of cash flow. The generalized fuzzy present value cannot depend on the value of future cash flow. There exists such a generalized fuzzy present value which is not a fuzzy present value in the sense given by some authors. If the present value is a fuzzy number and the future value is a random one, then the return rate is given as a probabilistic fuzzy subset on a real line. This kind of return rate is called a fuzzy probabilistic return. The main goal of this paper is to derive the family of effective securities with fuzzy probabilistic return. Achieving this goal requires the study of the basic parameters characterizing fuzzy probabilistic return. Therefore, fuzzy expected value and variance are determined for this case of return. These results are a starting point for constructing a three-dimensional image. The set of effective securities is introduced as the Pareto optimal set determined by the maximization of the expected return rate and minimization of the variance. Finally, the set of effective securities is distinguished as a fuzzy set. These results are obtained without the assumption that the distribution of future values is Gaussian. (original abstract

  16. Stock return distribution in the BRICS

    Directory of Open Access Journals (Sweden)

    George Adu

    2015-12-01

    Full Text Available Stock returns in emerging market economies exhibit patterns that are distinctively different from developed countries: returns are noted to be highly volatile and autocorrelated, and long horizon returns are predictable. While these stylized facts are well established, the assumption underlying the distribution of returns is less understood. In particular, the empirical literature continues to rely on the normality assumption as a starting point, and most asset pricing models tend to overstretch this point. This paper questions the rationale behind this supposition and proceeds to test more formally for normality using multivariate joint test for skewness and kurtosis. Additionally, the paper extends the literature by examining a number of empirical regularities for Brazil, Russia, India, China and South Africa (the BRICS for short. Our main findings are that the distribution of stock returns for the BRICS exhibits peakedness with fatter and longer tails, and this is invariant to both the unit of measurement and the time horizon of returns. Volatility clustering is prevalent in all markets, and this decays exponentially for all but Brazil. The relationship between risk and return is found to be significant and risk premiums are prevalent in our sample.

  17. Safety evaluation for packaging for 1720-DR sodium-filled tank

    International Nuclear Information System (INIS)

    Mercado, M.S.

    1996-01-01

    Preparations are under way to sell the sodium stored in the 1720-DR tank in the 1720-DR building. This will require that the tank, as well as the 1720-DR facility, be moved to the 300 Area, so that the sodium may be melted and transferred into a railroad tanker car. Because the sodium is a hazardous material and is being shipped in a nonspecification packaging, a safety evaluation for packaging (SEP) is required. This SEP approves the sodium-filled tank for a single shipment from the 105-DR area to the 300 Area

  18. Association between HLA-DR antigens and rheumatoid arthritis in Arabs.

    OpenAIRE

    Sattar, M A; al-Saffar, M; Guindi, R T; Sugathan, T N; Behbehani, K

    1990-01-01

    Eighty five Arab patients with classical and definite rheumatoid arthritis were typed to determine the prevalence of HLA A, B, C, and DR antigens. A significant increase in the prevalence of HLA-A10, B8, B21, and DR3 was found in comparison with a control population matched for age and sex. HLA-DR5 was significantly decreased in the patient group. The classical association of HLA-DR4 with rheumatoid arthritis could not be confirmed in the Arab patients resident in Kuwait, supporting reported ...

  19. HLA-DR-specific suppressor cells after repeated allogeneic sensitizations of human lymphocytes in vitro

    International Nuclear Information System (INIS)

    Sasportes, M.; Fradelizi, D.; Dausset, J.

    1978-01-01

    In conclusion, DR-specific suppressor cells can be induced by repeated in vitro sensitizations. They were able to decrease a secondary proliferation, to suppress consistently, in a primary proliferative assay, when added as third cells (primed twice against a DR antigen [PLT II] and γ-irradiated), the response of unprimed cells towards stimulating cells, which share a DR specificity with the priming cell of the PLT II. The suppression follows the D part of the recombinant haplotype within an HLA-B/D recombinant family and is specific for the DR antigen used twice as stimulator for production of the PLT II

  20. Return Predictability, Model Uncertainty, and Robust Investment

    DEFF Research Database (Denmark)

    Lukas, Manuel

    Stock return predictability is subject to great uncertainty. In this paper we use the model confidence set approach to quantify uncertainty about expected utility from investment, accounting for potential return predictability. For monthly US data and six representative return prediction models, we...... find that confidence sets are very wide, change significantly with the predictor variables, and frequently include expected utilities for which the investor prefers not to invest. The latter motivates a robust investment strategy maximizing the minimal element of the confidence set. The robust investor...... allocates a much lower share of wealth to stocks compared to a standard investor....