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Sample records for macrauchenia patachonica owen

  1. Owen Barwell - Chief Financial Officer | NREL

    Science.gov (United States)

    Owen Barwell - Chief Financial Officer Owen Barwell - Chief Financial Officer A photo of Owen , analysis, and management. He previously served as the Acting Chief Financial Officer and Deputy Chief Financial Officer of the U.S. Department of Energy (DOE), where he was directly responsible for DOE's

  2. The Owens Valley Millimeter Array

    International Nuclear Information System (INIS)

    Padin, S.; Scott, S.L.; Woody, D.P.; Scoville, N.Z.; Seling, T.V.

    1991-01-01

    The telescopes and signal processing systems of the Owens Valley Millimeter Array are considered, and improvements in the sensitivity and stability of the instrument are characterized. The instrument can be applied to map sources in the 85 to 115 GHz and 218 to 265 GHz bands with a resolution of about 1 arcsec in the higher frequency band. The operation of the array is fully automated. The current scientific programs for the array encompass high-resolution imaging of protoplanetary/protostellar disk structures, observations of molecular cloud complexes associated with spiral structure in nearby galaxies, and observations of molecular structures in the nuclei of spiral and luminous IRAS galaxies. 9 refs

  3. The Owen Value of Stochastic Cooperative Game

    Directory of Open Access Journals (Sweden)

    Cheng-Guo E

    2014-01-01

    Full Text Available We consider stochastic cooperative game and give it the definition of the Owen value, which is obtained by extending the classical case. Then we provide explicit expression for the Owen value of the stochastic cooperative game and discuss its existence and uniqueness.

  4. Groundwater quality in the Owens Valley, California

    Science.gov (United States)

    Dawson, Barbara J. Milby; Belitz, Kenneth

    2012-01-01

    Groundwater provides more than 40 percent of California’s drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State’s groundwater quality and increases public access to groundwater-quality information. Owens Valley is one of the study areas being evaluated. The Owens study area is approximately 1,030 square miles (2,668 square kilometers) and includes the Owens Valley groundwater basin (California Department of Water Resources, 2003). Owens Valley has a semiarid to arid climate, with average annual rainfall of about 6 inches (15 centimeters). The study area has internal drainage, with runoff primarily from the Sierra Nevada draining east to the Owens River, which flows south to Owens Lake dry lakebed at the southern end of the valley. Beginning in the early 1900s, the City of Los Angeles began diverting the flow of the Owens River to the Los Angeles Aqueduct, resulting in the evaporation of Owens Lake and the formation of the current Owens Lake dry lakebed. Land use in the study area is approximately 94 percent (%) natural, 5% agricultural, and 1% urban. The primary natural land cover is shrubland. The largest urban area is the city of Bishop (2010 population of 4,000). Groundwater in this basin is used for public and domestic water supply and for irrigation. The main water-bearing units are gravel, sand, silt, and clay derived from surrounding mountains. Recharge to the groundwater system is primarily runoff from the Sierra Nevada, and by direct infiltration of irrigation. The primary sources of discharge are pumping wells, evapotranspiration, and underflow to the Owens Lake dry lakebed. The primary aquifers in Owens Valley are defined as those parts of the aquifers corresponding to the perforated intervals of wells listed in the California Department of Public Health database

  5. Braid My Hair - Randy Owen sings out for sick children

    Science.gov (United States)

    ... Issue Past Issues Braid My Hair - Randy Owen sings out for sick children Past Issues / Spring 2008 ... to it. Former Alabama lead singer Randy Owen sings his new song, "Braid My Hair." Photo courtesy ...

  6. Geologic summary of the Owens Valley drilling project, Owens and Rose Valleys, Inyo County, California

    International Nuclear Information System (INIS)

    Schaer, D.W.

    1981-07-01

    The Owens Valley Drilling Project consists of eight drill holes located in southwest Inyo County, California, having an aggregate depth of 19,205 feet (5853 m). Project holes penetrated the Coso Formation of upper Pliocene or early Pleistocene age and the Owens Lake sand and lakebed units of the same age. The project objective was to improve the reliability of uranium-potential-resource estimates assigned to the Coso Formation in the Owens Valley region. Uranium-potential-resource estimates for this area in $100 per pound U 3 O 8 forward-cost-category material have been estimatd to be 16,954 tons (15,384 metric tons). This estimate is based partly on project drilling results. Within the Owens Valley project area, the Coso Formation was encountered only in the Rose Valley region, and for this reason Rose Valley is considered to be the only portion of the project area favorable for economically sized uranium deposits. The sequence of sediments contained in the Owens Valley basin is considered to be largely equivalent but lithologically dissimilar to the Coso Formation of Haiwee Ridge and Rose Valley. The most important factor in the concentration of significant amounts of uranium in the rock units investigated appears to be the availability of reducing agents. Significant amounts of reductants (pyrite) were found in the Coso Formation. No organic debris was noted. Many small, disconnected uranium occurrences, 100 to 500 ppM U 3 O 8 , were encountered in several of the holes

  7. Surface slip during large Owens Valley earthquakes

    KAUST Repository

    Haddon, E. K.; Amos, C. B.; Zielke, Olaf; Jayko, A. S.; Burgmann, R.

    2016-01-01

    The 1872 Owens Valley earthquake is the third largest known historical earthquake in California. Relatively sparse field data and a complex rupture trace, however, inhibited attempts to fully resolve the slip distribution and reconcile the total moment release. We present a new, comprehensive record of surface slip based on lidar and field investigation, documenting 162 new measurements of laterally and vertically displaced landforms for 1872 and prehistoric Owens Valley earthquakes. Our lidar analysis uses a newly developed analytical tool to measure fault slip based on cross-correlation of sublinear topographic features and to produce a uniquely shaped probability density function (PDF) for each measurement. Stacking PDFs along strike to form cumulative offset probability distribution plots (COPDs) highlights common values corresponding to single and multiple-event displacements. Lateral offsets for 1872 vary systematically from approximate to 1.0 to 6.0 m and average 3.31.1 m (2 sigma). Vertical offsets are predominantly east-down between approximate to 0.1 and 2.4 m, with a mean of 0.80.5 m. The average lateral-to-vertical ratio compiled at specific sites is approximate to 6:1. Summing displacements across subparallel, overlapping rupture traces implies a maximum of 7-11 m and net average of 4.41.5 m, corresponding to a geologic M-w approximate to 7.5 for the 1872 event. We attribute progressively higher-offset lateral COPD peaks at 7.12.0 m, 12.8 +/- 1.5 m, and 16.6 +/- 1.4 m to three earlier large surface ruptures. Evaluating cumulative displacements in context with previously dated landforms in Owens Valley suggests relatively modest rates of fault slip, averaging between approximate to 0.6 and 1.6 mm/yr (1 sigma) over the late Quaternary.

  8. Surface slip during large Owens Valley earthquakes

    KAUST Repository

    Haddon, E. K.

    2016-01-10

    The 1872 Owens Valley earthquake is the third largest known historical earthquake in California. Relatively sparse field data and a complex rupture trace, however, inhibited attempts to fully resolve the slip distribution and reconcile the total moment release. We present a new, comprehensive record of surface slip based on lidar and field investigation, documenting 162 new measurements of laterally and vertically displaced landforms for 1872 and prehistoric Owens Valley earthquakes. Our lidar analysis uses a newly developed analytical tool to measure fault slip based on cross-correlation of sublinear topographic features and to produce a uniquely shaped probability density function (PDF) for each measurement. Stacking PDFs along strike to form cumulative offset probability distribution plots (COPDs) highlights common values corresponding to single and multiple-event displacements. Lateral offsets for 1872 vary systematically from approximate to 1.0 to 6.0 m and average 3.31.1 m (2 sigma). Vertical offsets are predominantly east-down between approximate to 0.1 and 2.4 m, with a mean of 0.80.5 m. The average lateral-to-vertical ratio compiled at specific sites is approximate to 6:1. Summing displacements across subparallel, overlapping rupture traces implies a maximum of 7-11 m and net average of 4.41.5 m, corresponding to a geologic M-w approximate to 7.5 for the 1872 event. We attribute progressively higher-offset lateral COPD peaks at 7.12.0 m, 12.8 +/- 1.5 m, and 16.6 +/- 1.4 m to three earlier large surface ruptures. Evaluating cumulative displacements in context with previously dated landforms in Owens Valley suggests relatively modest rates of fault slip, averaging between approximate to 0.6 and 1.6 mm/yr (1 sigma) over the late Quaternary.

  9. Surface slip during large Owens Valley earthquakes

    Science.gov (United States)

    Haddon, E.K.; Amos, C.B.; Zielke, O.; Jayko, Angela S.; Burgmann, R.

    2016-01-01

    The 1872 Owens Valley earthquake is the third largest known historical earthquake in California. Relatively sparse field data and a complex rupture trace, however, inhibited attempts to fully resolve the slip distribution and reconcile the total moment release. We present a new, comprehensive record of surface slip based on lidar and field investigation, documenting 162 new measurements of laterally and vertically displaced landforms for 1872 and prehistoric Owens Valley earthquakes. Our lidar analysis uses a newly developed analytical tool to measure fault slip based on cross-correlation of sublinear topographic features and to produce a uniquely shaped probability density function (PDF) for each measurement. Stacking PDFs along strike to form cumulative offset probability distribution plots (COPDs) highlights common values corresponding to single and multiple-event displacements. Lateral offsets for 1872 vary systematically from ∼1.0 to 6.0 m and average 3.3 ± 1.1 m (2σ). Vertical offsets are predominantly east-down between ∼0.1 and 2.4 m, with a mean of 0.8 ± 0.5 m. The average lateral-to-vertical ratio compiled at specific sites is ∼6:1. Summing displacements across subparallel, overlapping rupture traces implies a maximum of 7–11 m and net average of 4.4 ± 1.5 m, corresponding to a geologic Mw ∼7.5 for the 1872 event. We attribute progressively higher-offset lateral COPD peaks at 7.1 ± 2.0 m, 12.8 ± 1.5 m, and 16.6 ± 1.4 m to three earlier large surface ruptures. Evaluating cumulative displacements in context with previously dated landforms in Owens Valley suggests relatively modest rates of fault slip, averaging between ∼0.6 and 1.6 mm/yr (1σ) over the late Quaternary.

  10. Owen Martin Phillips (1930-2010)

    Science.gov (United States)

    Olson, Peter

    2011-02-01

    Owen Martin Phillips, a pioneer in geophysical fluid dynamics, died at home on 13 October 2010 in Chestertown, Md., at the age of 79. To his many friends and colleagues, Phillips was an inspirational and gracious person who combined a deep intellect, a lively spirit, and a generous heart that matched his passionate interest in the geophysical sciences. Phillips was born on 30 December 1930 in Parramatta, N. S. W., Australia. In 1948 he enrolled in the University of Sydney, where he earned a B.S. in applied mathematics in 1952. That same year, he joined the Cavendish Laboratory at Cambridge University as a research student, where he began to apply to the ocean concepts in turbulent flow recently developed by Andrei Kolmogorov, G. I. Taylor, and George Batchelor. While attending the 1956 celebration of Taylor's seventieth birthday, Phillips heard Fritz Ursell declare that “the process by which ocean waves are generated by the wind cannot be regarded as known.” In 1957 the Journal of Fluid Mechanics contained two remarkable papers offering contrasting theories for ocean wave generation. One paper, by the applied mathematician John Miles (J. Fluid Mech., 2(5), 417-445, 1957), proposed that energy transfer from the air to the sea occurs at a critical layer in the atmosphere boundary layer. The other paper, by Phillips, then 26 years old (J. Fluid Mech., 3(2), 185-204, 1957), proposed that turbulent pressure fluctuations in the wind resonate with propagating ocean waves, forcing them to grow. Together these became known as the Phillips-Miles process, and it was the opening salvo in Phillips's 50-year career of innovative contributions to geophysics through fluid mechanics.

  11. Long Valley Caldera Lake and reincision of Owens River Gorge

    Science.gov (United States)

    Hildreth, Wes; Fierstein, Judy

    2016-12-16

    Owens River Gorge, today rimmed exclusively in 767-ka Bishop Tuff, was first cut during the Neogene through a ridge of Triassic granodiorite to a depth as great as its present-day floor and was then filled to its rim by a small basaltic shield at 3.3 Ma. The gorge-filling basalt, 200 m thick, blocked a 5-km-long reach of the upper gorge, diverting the Owens River southward around the shield into Rock Creek where another 200-m-deep gorge was cut through the same basement ridge. Much later, during Marine Isotope Stage (MIS) 22 (~900–866 ka), a piedmont glacier buried the diversion and deposited a thick sheet of Sherwin Till atop the basalt on both sides of the original gorge, showing that the basalt-filled reach had not, by then, been reexcavated. At 767 ka, eruption of the Bishop Tuff blanketed the landscape with welded ignimbrite, deeply covering the till, basalt, and granodiorite and completely filling all additional reaches of both Rock Creek canyon and Owens River Gorge. The ignimbrite rests directly on the basalt and till along the walls of Owens Gorge, but nowhere was it inset against either, showing that the basalt-blocked reach had still not been reexcavated. Subsidence of Long Valley Caldera at 767 ka produced a steep-walled depression at least 700 m deeper than the precaldera floor of Owens Gorge, which was beheaded at the caldera’s southeast rim. Caldera collapse reoriented proximal drainages that had formerly joined east-flowing Owens River, abruptly reversing flow westward into the caldera. It took 600,000 years of sedimentation in the 26-km-long, usually shallow, caldera lake to fill the deep basin and raise lake level to its threshold for overflow. Not until then did reestablishment of Owens River Gorge begin, by incision of the gorge-filling ignimbrite.

  12. Education and Utopia: Robert Owen and Charles Fourier

    Science.gov (United States)

    Leopold, David

    2011-01-01

    The aims of education, and the appropriate means of realising them, are a recurring preoccupation of utopian authors. The utopian socialists Robert Owen (1771-1858) and Charles Fourier (1772-1837) both place human nature at the core of their educational views, and both see education as central to their wider objective of social and political…

  13. Edificio para la Libbey-Owens-Ford Glass Company

    Directory of Open Access Journals (Sweden)

    Skidmore, Owings & Merrill, Arquitectos

    1965-04-01

    Full Text Available This is a 15 storey building, located in Toledo, Ohio, and will house the general offices of the Libbey-Owens-Ford Company. There is a basement, which contains air conditioning equipment, stores, service rooms, and similar facilities. The ground floor occupies a smaller area than the floors above, and the difference in area provides a covered arcade round the building. The main hall and lift shafts take up most of the ground floor space. All the remaining storeys are devoted to offices. This is a good example of contemporary functional architecture and also an exciting manifestation of the use of glass in this type of buildings.Este edificio, de 15 plantas de altura, construido en Toledo, Ohio, para oficinas generales de la Libbey-Owens- Ford Glass Company, consta de: un sótano destinado a albergar los equipos mecánicos para el acondicionamiento de aire, etc., almacén, departamentos de servicio, etc. El cuerpo de edificación de la planta baja, que aparece retranqueado de los soportes perimetrales creando una zona porticada, aloja el vestíbulo principal, núcleo de comunicaciones verticales, etcétera. Las restantes plantas están ocupadas por oficinas. No solamente este edificio es un destacado ejemplo de arquitectura moderna, sino que también es una suscitante manifestación de las ideas arquitectónicas en cristal.

  14. Robert Owen: A Historiographic Study of a Pioneer of Human Resource Development

    Science.gov (United States)

    Hatcher, Tim

    2013-01-01

    Purpose: The purpose of this paper is to investigate the ideals and activities of the nineteenth century Welsh industrialist and reformer Robert Owen (1771-1858), and how they informed modern human resource development (HRD) concepts and practices and provided evidence of Owen as a HRD pioneer. Design/methodology/approach: Historiography provided…

  15. Matuyama/Brunhes Polarity Transition in Owens Lake, CA, Sediment

    Science.gov (United States)

    Liddicoat, Joseph; Kravchinsky, Vadim

    2014-05-01

    The complexity of the Matuyama/Brunhes (M/B) polarity transition is becoming better understood from investigations of volcanic rocks (Coe et al., 2004), loess (Jin et al., 2012; Evans et al., 2011; Kravchinsky, 2013), and marine (Clement and Opdyke, 1982; Hartl and Tauxe, 1996; Macri et al., 2010) and lacustrine (Valet et al., 1988; Sagnotti et al., 2013) sediments. The transition appears to include a brief interval of normal polarity prior to the entry into the Brunhes Normal Chron (Coe et al., 2004; Jin et al., 2012; Evans et al., 2011), and the transition has Virtual Geomagnetic Poles rapidly moving from the Southern Hemisphere to the Northern Hemisphere (Coe et al., 2004; Jin et al., 2012; Evans et al., 2011; Sagnotti et al., 2013). The M/B polarity transition is recorded in exposed Pleistocene lake sediments near Bishop, CA, where the brief interval of normal polarity noted above is present and the change from full reverse to full normal polarity occurs rapidly. The brief interval of normal polarity is recorded at two sites separated laterally by about 150 m and is in single hand samples measured at vertical spacing of 2.0-2.5 cm using six samples per measured level and alternating field demagnetization at 20 mT (Liddicoat, 1993, Table 1 and Fig. 8). The siltstone is unweathered glacial flour from the Sierra Nevada that borders the western side of Owens Valley where the sediments were deposited in Owens Lake. In the siltstone, the majority of the samples have a percentage of about 60 percent where the grain diameter is less than 63 micrometres, and in those samples there is about a five percent fraction when the diameter is two micrometres or less. The Total Inorganic Carbon in most samples is about 0.25 percent (Bergeron, 2013), and magnetite is the dominant carrier of the magnetization (Liddicoat, 1993). The palaeomagnetic directions recording the terminus of the full M/B transition, which occurs before the field intensity is completely recovered, spans no

  16. The Early Planetary Research of Tobias C. Owen

    Science.gov (United States)

    Cruikshank, Dale P.

    2017-10-01

    Tobias Chant Owen (Toby) was a graduate student of G. P. Kuiper, receiving his Ph.D. in the Dept. of Astronomy, University of Arizona, in 1965. His thesis was broadly titled "Studies of Planetary Spectra in the Photographic Infrared", and primarily presented a study of the composition and other properties of Jupiter, as well as the abundance and surface pressure of CO2 on Mars. The surface pressure on Mars was a topic of debate at that time, with a wide range of diverse observational results from several investigators. The Jupiter work in particular consisted of the analysis of Kuiper's unpublished spectra that were made with photographic plates pushed to the longest wavelength possible, about 1120 nm, with ammonia-hypersensitized Kodak Z emulsions. Toby used the long-pathlength absorption cells at the Lunar and Planetary Lab to study the spectra of CH4 and NH3 at pressures and temperatures relevant to Jupiter (and Saturn), as well as to search for spectral signatures of potential minor components of their atmospheres. Toby also obtained new spectra of Io, Ganymede, and Saturn and its rings, extended to the long-wavelength limit of photographic emulsions. No new molecular absorptions were found, although Owen basically confirmed Kuiper's earlier result that Saturn's rings are covered (or composed of) with H2O ice or frost. As he pursued a broad range of problems of planetary atmospheres, Toby used existing and newly acquired spectra of the planets in the photographic and near-infrared wavelength regions, together with data he obtained in the laboratory with long-pathlength absorption cells, to resolve some outstanding issues of unidentified spectral features and to clarify issues of the compositions, temperatures, and atmospheric pressures of several bodies. This work laid the foundation for his later decades of studies of planetary atmospheres and comets with spacecraft as an active participant in many US and European missions. He was very influential in shaping

  17. Plant Water Use in Owens Valley, CA: Understanding the Influence of Climate and Depth to Groundwater

    OpenAIRE

    Pataki, Diane E

    2008-01-01

    There is a long-standing controversy in Owens Valley, California about the potential impacts of water exports on the local ecosystem. It is currently extremely difficult to attribute changes in plant cover and community composition to hydrologic change, as the interactions between ecological and hydrologic processes are relatively poorly understood. Underlying predictions about losses of grasslands and expansion of shrublands in response to declining water tables in Owens Valley are assumptio...

  18. Science with the Expanded Owens Valley Solar Array

    Science.gov (United States)

    Nita, Gelu M.; Gary, Dale E.; Fleishman, Gregory D.; Chen, Bin; White, Stephen M.; Hurford, Gordon J.; McTiernan, James; Hickish, Jack; Yu, Sijie; Nelin, Kjell B.

    2017-08-01

    The Expanded Owens Valley Solar Array (EOVSA) is a solar-dedicated radio array that makes images and spectra of the full Sun on a daily basis. Our main science goals are to understand the basic physics of solar activity, such as how the Sun releases stored magnetic energy on timescales of seconds, and how that solar activity, in the form of solar flares and coronal mass ejections, influences the Earth and near-Earth space environment, through disruptions of communication and navigation systems, and effects on satellites and systems on the ground. The array, which is composed out of thirteen 2.1 m dishes and two 27 m dishes (used only for calibration), has a footprint of 1.1 km EW x 1.2 km NS and it is capable of producing, every second, microwave images at two polarizations and 500 science channels spanning the 1-18 GHz frequency range. Such ability to make multi-frequency images of the Sun in this broad range of frequencies, with a frequency dependent resolution ranging from ˜53” at 1 GHz to ˜3”at 18 GHz, is unique in the world. Here we present an overview of the EOVSA instrument and a first set of science-quality active region and solar flare images produced from data taken during April 2017.This research is supported by NSF grant AST-1615807 and NASA grant NNX14AK66G to New Jersey Institute of Technology.

  19. Charles Darwin, Richard Owen, and Natural Selection: A Question of Priority.

    Science.gov (United States)

    Johnson, Curtis N

    2018-05-03

    No single author presented Darwin with a more difficult question about his priority in discovering natural selection than the British comparative anatomist and paleontologist Richard Owen. Owen was arguably the most influential biologist in Great Britain in Darwin's time. Darwin wanted his approbation for what he believed to be his own theory of natural selection. Unfortunately for Darwin, when Owen first commented in publication about Darwin's theory of descent he was openly hostile (Edinb. Rev. vol. 111, Article VIII, 1860, pp. 487-533, anonymous). Darwin was taken off-guard. In private meetings and correspondence prior to 1860 Owen had been nothing but polite and friendly, even helping Darwin in cataloguing and analyzing Darwin's zoological specimens from the Beagle voyage. Every early indication predicted a life-long friendship and collaboration. But that was not to be. Owen followed his slashing review with a mounting campaign in the 1860s to denounce and discredit both Darwin and his small but ascendant circle of friends and supporters. But that was not enough for Owen. Starting in 1866, perhaps by now realizing Darwin had landed the big fish, Owen launched a new campaign, to claim the discovery of "Darwin's theory" for himself. Darwin naturally fought back, mainly in the "Historical Sketch" that he prefaced to Origin starting in 1861. But when we peel back the layers of personal animus and escalating vituperation we discover in fact their quarrel was generated more by mutual misunderstanding than scientific disagreement. The battle ended only when Darwin finally penetrated to the crux of the matter and put an end to the rivalry in 1872, in the final version of the Sketch.

  20. Lord Owen : lõpetage rääkimine EL-i kriisidest / David Anthony Llewellyn Owen ; interv. Erkki Bahovski

    Index Scriptorium Estoniae

    Owen, David Anthony Llewellyn

    2007-01-01

    Ilmunud ka: Postimees : na russkom jazõke 2. apr. lk. 9. Tartu Ülikoolis esinenud ja Venemaal äri ajav Briti endine välisminister vastab küsimustele Euroopa Liidu põhiseadusliku leppe, reformide, välis- ja julgeolekupoliitika, Venemaa suhete ja sisearengu, energiapoliitika kohta ning leiab, et ei taha Venemaaga uuesti alustada külma sõda. Lisa: Lord Owen

  1. Berlin 1936: The Creation of the “Myth” Jesse Owens

    Directory of Open Access Journals (Sweden)

    Leite Werlayne Stuart Soares

    2017-11-01

    Full Text Available Throughout the twentieth century, the sport has gained much importance in society and sparked interest from various sectors, including the political. Adolf Hitler used the XI 1936 Summer Olympic Games to show the world the strength of Nazi Germany and its rebirth after the defeat in World War I and the impositions of the Versailles Treaty. However, many of the facts historically reported on the 1936 Olympics are contested. The most famous and mythical case of these Olympic Games, and one of the most famous in the history of sport, relates to events that occurred between the American athlete Jesse Owens and the Nazi Führer. The aim of this work is to try to show, as faithfully as possible, as some important facts occurred during this event (the contest between Owens and Long in the long jump; if Hitler snubbed Owens; etc. that helped create the “myth” around Owens; and to present reports of the global media coverage, analyzing the perpetuation of these mythical reports in current media. As methodology was conducted an ample bibliographical research: reports taken from newspapers of the time and current, books, scientific papers, master's thesis, documentaries, etc. Without claiming to prove a single fact, it is intended to provide insight to the reader to draw their own conclusions.

  2. An Owen-type value for games with two-level communication structures

    NARCIS (Netherlands)

    van den Brink, René; Khmelnitskaya, Anna Borisovna; van der Laan, Gerard

    We introduce an Owen-type value for games with two-level communication structure, which is a structure where the players are partitioned into a coalition structure such that there exists restricted communication between as well as within the a priori unions of the coalition structure. Both types of

  3. Deep and bottom water characteristics in the Owen Fracture Zone, Western Arabian Sea

    Digital Repository Service at National Institute of Oceanography (India)

    Naqvi, S.W.A.; Kureishy, T.W.

    Hydro chemical studies at a station (10 degrees 34.l'N,56 degrees 31,7'E) in the Owen Fracture zone reveal an active movement of bottom water as approx 75 m thick, cold, low-salinity layer. Silicate profile exhibits a broad maximum coinciding with a...

  4. The Virginian's Cultural Clashes: A Study of Cultural Representation in Owen Wister's novel The Virginian

    OpenAIRE

    Aksnes, Karoline

    2012-01-01

    This thesis is a cultural study of Owen Wister's novel The Virginian. Its main focus is on the ways in which cultural differences between East and West are staged and acted out in the novel's depiction of a culturally diverse frontier environment in nineteenth century Wyoming, USA. Central in this study are the story's three main characters as they represent different cultural backgrounds, and, by their personal experiences with the Western environment as well as wi...

  5. Dust Generation Resulting from Desiccation of Playa Systems: Studies on Mono and Owens Lakes, California

    Science.gov (United States)

    Gill, Thomas Edward

    1995-01-01

    Playas, evaporites, and aeolian sediments frequently are linked components within the Earth system. Anthropogenic water diversions from terminal lakes form playas that release fugitive dust. These actions, documented worldwide, simulate aeolian processes activated during palaeoclimatic pluvial/interpluvial transitions, and have significant environmental impacts. Pluvial lakes Russell and Owens in North America's Great Basin preceded historic Mono and Owens Lakes, now desiccated by water diversions into dust-generating, evaporite -encrusted playas. Geochemical and hydrologic cycles acting on the Owens (Dry) Lake playa form three distinct crust types each year. Although initial dust production results from deflation of surface efflorescences after the playa dries, most aerosols are created by saltation abrasion of salt/silt/clay crusts at crust/ sand sheet contacts. The warm-season, clastic "cemented" crust is slowest to degrade into dust. If the playa surface is stabilized by an unbroken, non-efflorescent crust, dust formation is discouraged. When Mono Lake's surFace elevation does not exceed 1951 meters (6400 feet), similar processes will also generate dust from its saline lower playa. Six factors--related to wind, topography, groundwater, and sediments--control dust formation at both playas. These factors were combined into a statistical model relating suspended dust concentrations to playa/lake morphometry. The model shows the extent and severity of Mono Lake dust storms expands significantly below the surface level 6376 feet (1943.5 meters). X-ray diffraction analysis of Mono Basin soils, playa sediments, and aerosols demonstrates geochemical cycling of materials through land, air and water during Mono Lake's 1982 low stand. Soils and clastic playa sediments contain silicate minerals and tephra. Saline groundwater deposited calcite, halite, thenardite, gaylussite, burkeite and glauberite onto the lower playa. Aerosols contained silicate minerals (especially

  6. Graphic Interface for the Gearhart-Owen 3500 Uranium Logging System

    International Nuclear Information System (INIS)

    Haller, I; Mendieta, C; Tenzi, A

    2000-01-01

    This work presents the design and development of a computing graphic interface in order to modernize the data acquisition of an old Gearhart-Owen uranium logging system.The paper describes the different items involved in the project: the system hardware developed to carry out the signal conditioning and data digitization the system software, which performs the monitoring and storing of the updated information.Finally, we compare the results of de recent field measurements with the previous one obtained with the original equipment and show the feasibility of the project

  7. Entre el Dios de Paley y el Dios de Bonnet: El Parco Evolucionismo Teísta de Richard Owen

    Directory of Open Access Journals (Sweden)

    Gustavo Caponi

    2013-04-01

    Full Text Available Firstly, in this article it is examined the nature of the putative remarks concerning evolution of species that are found in the works that Richard Owen published before 1858; and then it is made the same thing with the few and vague evolutionist conjectures that Owen certainly made after the public presentation of Natural Selection Theory. Regarding the former topic, the goal will be to highlight the ambiguity of those Owen’s remarks, and concerning the latter topic what is looked for is to show that, when he explained his transmutationist thesis, Owen didn’t go beyond a pious theistic evolutionism, without postulating any mechanism of evolutionary change and remaining faithful to Design Theology praised by Paley.

  8. Entre el dios de Paley y el dios de Bonnet - El parco evolucionismo teísta de Richard Owen

    Directory of Open Access Journals (Sweden)

    Gustavo Caponi

    2013-04-01

    Full Text Available http://dx.doi.org/10.5007/1808-1711.2013v17n1p71 En primer lugar, en este artículo se examina el carácter de las putativas referencias a la evolución de las especies que encontramos en las obras que Richard Owen publicó antes de 1858; y luego se analizan las escazas y vagas conjeturas evolucionistas que Owen sin duda formuló con posterioridad a la presentación pública de la Teoría de la Selección Natural.  En lo que respecta a lo primero, el objetivo es subrayar la ambigüedad de esas referencias de Owen; y en lo que respecta a lo segundo lo que interesa es mostrar que, a la hora de explicitar sus tesis evolucionistas, Owen no fue más allá de un pío evolucionismo teísta que, sin postular ningún mecanismo del cambio evolutivo, permanecía fiel a la Teología del diseño preconizada por Paley.

  9. An Eminent Specialist in Both Chinese Literature and Comparative Literature—An Interview with Prof.Stephen Owen

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    <正>The Interviewee:Stephen Owen,James Bryant Conant University Professor and a member of American Academy of Arts and Sciences(1991-),is working at Harvard University as Professor of Comparative Literature in the Dept.of Comparative Literature and Professor of Chinese Literature in the Dept.of Asian Studies.

  10. Horace Lamb and the circumstances of his appointment at Owens College

    Science.gov (United States)

    Launder, Brian

    2013-01-01

    This paper examines a succession of incidents at a critical juncture in the life of Professor Horace Lamb FRS, a highly regarded classical fluid mechanicist, who, over a period of some 35 years at Manchester, made notable contributions in research, in education and in wise administration at both national and university levels. Drawing on archived documents from the universities of Manchester and Adelaide, the article presents the unusual sequence of events that led to his removing from Adelaide, South Australia, where he had served for nine years as the Elder Professor of Mathematics, to Manchester. In 1885 he was initially appointed to the vacant Chair of Pure Mathematics at Owens College and then, in 1888, as an outcome of his proposal for rearranging professorial responsibilities, to the Beyer Professorship of Pure and Applied Mathematics.

  11. Decomposition of Alternative Chirality Amino Acids by Alkaliphilic Anaerobe from Owens Lake, California

    Science.gov (United States)

    Townsend, Alisa; Pikuta, Elena V.; Guisler, Melissa; Hoover, Richard B.

    2009-01-01

    The study of alkaliphilic microbial communities from anaerobic sediments of Owens and Mono Lakes in California led to the isolation of a bacterial strain capable of metabolizing amino acids with alternative chirality. According to the phylogenetic analysis, the anaerobic strain BK1 belongs to the genus Tindallia; however, despite the characteristics of other described species of this genus, the strain BK1 was able to grow on D-arginine and Dlysine. Cell morphology of this strain showed straight, motile, non-spore-forming rods with sizes 0.45 x 1.2-3 microns. Physiological characteristics of the strain showed that it is catalase negative, obligately anaerobic, mesophilic, and obligately alkaliphilic. This isolate is unable to grow at pH 7 and requires CO3 (2-) ions for growth. The strain has chemo-heterotrophic metabolism and is able to ferment various proteolysis products and some sugars. It plays the role of a primary anaerobe within the trophic chain of an anaerobic microbial community by the degradation of complex protein molecules to smaller and less energetic molecules. The new isolate requires NaCl for growth, and can grow within the range of 0.5-13 %, with the optimum at 1 % NaCl (w/v). The temperature range for the growth of the new isolate is 12-40 C with optimum at 35 C. The pH range for the growth of strain BK1 occurs between 7.8 and 11.0 with optimum at 9.5. This paper presents detailed physiological characteristics of the novel isolate from Owens Lake, a unique relic ecosystem of Astrobiological significance, and makes an accent on the ability of this strain to utilize L-amino acids.

  12. Anaerobic halo- alkaliphilic bacterial community of athalassic, hypersaline Mono lake and Owens Lake in California

    Science.gov (United States)

    Pikuta, Elena V.; Detkova, Ekaterina N.; Bej, Asim K.; Marsic, Damien; Hoover, Richard B.

    2003-02-01

    The bacterial diversity of microbial extremophiles from the meromictic, hypersaline Mono Lake and a small evaporite pool in Owens Lake of California was studied. In spite of these regions had differing mineral background and different concentrations of NaCl in water they contain the same halo- alkaliphiles anaerobic bacterial community. Three new species of bacteria were detected in this community: primary anaerobe, dissipotrophic saccharolytic spirochete Spirochaeta americana strain AspG1T, primary anaerobe which is proteolytic Tindallia californiensis strain APOT, and secondary anaerobe, hydrogen using Desulfonatronum thiodismutans strain MLF1T, which is sulfate- reducer with chemo-litho-autotrophic metabolism. All of these bacteria are obligate alkaliphiles and dependent upon Na+ ions and CO32- ions in growth mediums. It is interesting that closest relationships for two of these species were isolates from samples of equatorial African soda Magadi lake: Spirochaeta americana AspG1T has 99.4% similarity on 16S rDNA- analyses with Spirochaeta alkalica Z- 7491T, and Tindallia californiensis APOT has 99.1% similarity with Tindallia magadiensis Z-7934T. But result of DNA-DNA- hybridization demonstrated less then 50% similarity between Spirochaeta americana AspG1T and Spirochaeta alkalica Z-7491T. Percent of homology between Tindallia californiensis APOT and Tindallia magadiensis Z-7934T is only 55%. The sulfate-reducer from the alkalic anaerobic community of Magadi lake Desulfonatronovibrio hydrogenovorans Z-7935T was phylogenetically distant from this sulfate-reducer in Mono lake, but genetically closer (99.7% similarity) to the sulfate-reducer, isolated from Central Asian alkalic lake Khadyn in Siberia Desulfonatronum lacustre Z-7951T. The study of key enzymes (hydrogenase and CO- hydrogenase) in Tindallia californiensis APOT and Desulfonatronum thiodismutans MLF1T showed the presence of high activity of both the enzymes in first and only hydrogenase in second

  13. Entre el Dios de Paley y el Dios de Bonnet: El Parco Evolucionismo Teísta de Richard Owen

    OpenAIRE

    Gustavo Caponi

    2013-01-01

    http://dx.doi.org/10.5007/1808-1711.2013v17n1p71En primer lugar, en este artículo se examina el carácter de las putativas referencias a la evolución de las especies que encontramos en las obras que Richard Owen publicó antes de 1858; y luego se analizan las escazas y vagas conjeturas evolucionistas que Owen sin duda formuló con posterioridad a la presentación pública de la Teoría de la Selección Natural.  En lo que respecta a lo primero, el objetivo es subrayar la ambigüedad de esas referenci...

  14. Application of the Gillette model for windblown dust at Owens Lake, CA

    Science.gov (United States)

    Ono, Duane

    Windblown dust can have significant impacts on local air pollution levels, and in cases such as dust from Africa or Asia, can have global impacts on our environment. Models to estimate particulate matter emissions from windblown dust are generally based on the local wind speed, the threshold wind speed to initiate erosion, and the soil texture of a given surface. However, precipitation, soil crusting, and soil disturbance can dramatically change the threshold wind speed and erosion potential of a surface, making modeling difficult. A low-cost sampling and analysis method was developed to account for these surface changes in a wind erosion model. Windblown dust emissions measured as PM 10 (particulate matter less than a nominal 10 μm aerodynamic diameter) have been found to be generally proportional to sand flux (also known as saltation flux). In this study, a model was used to estimate sand flux using the relationship Q=AρG/g, where Q is horizontal sand flux, A is a surface erosion potential factor, ρ is air density, g is the gravitational constant, and G=∫ u*(u*2-u*t2)dt, where u* is friction velocity and u is the threshold friction velocity of the surface. The variable A in the model was derived by comparing the measured sand flux for a given period and area to G for the same period. Sand flux was monitored at Owens Lake, CA using low-cost Cox Sand Catchers (CSCs) for monthly measurements, and more expensive electronic sensors (Sensits) to measure hourly flux rates and u. Monitors were spaced 1 km apart at 114 sites, covering one clay and three sand-dominated soil areas. Good model results relied primarily on the erosion potential A, which could be determined from CSC measurements and wind speed data. Annual values for A were found to range from 1.3 to 3.5 in the three sand areas. The value of A was an order of magnitude lower (0.2) in the less erodible clay area. Previous studies showed similar values for A of 0.7 and 2.9 for a sandy site at Owens Lake, and

  15. KEMUNCULAN DAN TINGKAH LAKU PESUT (Orcaella brevirostris (Owen in Gray 1866 SEBAGAIMAMALIATERANCAMLANGKA DI PERAIRANKUBU RAYADANKAYONGUTARAKALIMANTAN BARAT

    Directory of Open Access Journals (Sweden)

    Regi Fiji Anggawangsa

    2015-12-01

    2013. Selama pengamatan hanya diketahui terdapat satu kelompok pesut sebanyak 4-6 individu yang terdiri dari pesut muda dan dewasa. Kelompokan itu dijumpai di muara Sungai Bumbun pada kedalamanan perairan 11 meter. Tingkah laku yang teramati menunjukkan gerombolan pesut umumnya memburu kelompokan ikan dan sesekali menyemburkan air dari blowhole nya. Berdasarkan ciri-ciri morfologi dan tingkah laku yang teramati serta kondisi lingkungan perairan setempat maka perairan di Kabupaten Kubu Raya dan Kabupaten Kayong Utara yang terletak di Provinsi Kalimantan Barat diduga merupakan perairan yang potensial sebagai habitat pesut (Orcaella brevirostris. Irrawaddy dolphins (Orcaella brevirostris (Owen in Gray 1866 is one of aquatic mammals species who populations are increasingly threatened. The lack information about population of Irrawaddy dolphins in West Kalimantan waters makes the conservation of this species and its management were still not optimized yet. This research aims to identify the characteristics and behavior of dolphins found in Kubu Raya and Kayong Utara waters of West Kalimantan. The observation was held on April 2013, exploring coastal waters and estuaries which are expected to be the habitats of Irrawaddy dolphins using binoculars. There are 4-6 individuals of Irrawaddy dolphin found at the mouth of Bumbun River. A group consist of young and adults dolphins at the depth of 11 meters. The observed behavior is chasing schooling fish and occasionally spitting water from his blowhole. Based on morphological character and fish behavior observed, and environmental condition parameters, indicated that the water surrounding of Kubu Raya and Kayong Utara District were potential habitat for Irrawaddy dolphins.

  16. Keeping the History in Historical Seismology: The 1872 Owens Valley, California Earthquake

    International Nuclear Information System (INIS)

    Hough, Susan E.

    2008-01-01

    The importance of historical earthquakes is being increasingly recognized. Careful investigations of key pre-instrumental earthquakes can provide critical information and insights for not only seismic hazard assessment but also for earthquake science. In recent years, with the explosive growth in computational sophistication in Earth sciences, researchers have developed increasingly sophisticated methods to analyze macroseismic data quantitatively. These methodological developments can be extremely useful to exploit fully the temporally and spatially rich information source that seismic intensities often represent. For example, the exhaustive and painstaking investigations done by Ambraseys and his colleagues of early Himalayan earthquakes provides information that can be used to map out site response in the Ganges basin. In any investigation of macroseismic data, however, one must stay mindful that intensity values are not data but rather interpretations. The results of any subsequent analysis, regardless of the degree of sophistication of the methodology, will be only as reliable as the interpretations of available accounts - and only as complete as the research done to ferret out, and in many cases translate, these accounts. When intensities are assigned without an appreciation of historical setting and context, seemingly careful subsequent analysis can yield grossly inaccurate results. As a case study, I report here on the results of a recent investigation of the 1872 Owen's Valley, California earthquake. Careful consideration of macroseismic observations reveals that this event was probably larger than the great San Francisco earthquake of 1906, and possibly the largest historical earthquake in California. The results suggest that some large earthquakes in California will generate significantly larger ground motions than San Andreas fault events of comparable magnitude

  17. Holocene and latest Pleistocene oblique dextral faulting on the southern Inyo Mountains fault, Owens Lake basin, California

    Science.gov (United States)

    Bacon, S.N.; Jayko, A.S.; McGeehin, J.P.

    2005-01-01

    The Inyo Mountains fault (IMF) is a more or less continuous range-front fault system, with discontinuous late Quaternary activity, at the western base of the Inyo Mountains in Owens Valley, California. The southern section of the IMF trends ???N20??-40?? W for at least 12 km at the base of and within the range front near Keeler in Owens Lake basin. The southern IMF cuts across a relict early Pliocene alluvial fan complex, which has formed shutter ridges and northeast-facing scarps, and which has dextrally offset, well-developed drainages indicating long-term activity. Numerous fault scarps along the mapped trace are northeast-facing, mountain-side down, and developed in both bedrock and younger alluvium, indicating latest Quaternary activity. Latest Quaternary multiple- and single-event scarps that cut alluvium range in height from 0.5 to 3.0 m. The penultimate event on the southern IMF is bracketed between 13,310 and 10,590 cal years B.P., based on radiocarbon dates from faulted alluvium and fissure-fill stratigraphy exposed in a natural wash cut. Evidence of the most recent event is found at many sites along the mapped fault, and, in particular, is seen in an ???0.5-m northeast-facing scarp and several right-stepping en echelon ???0.5-m-deep depressions that pond fine sediment on a younger than 13,310 cal years B.P. alluvial fan. A channel that crosses transverse to this scarp is dextrally offset 2.3 ?? 0.8 m, providing a poorly constrained oblique slip rate of 0.1-0. 3 m/ k.y. The identified tectonic geomorphology and sense of displacement demonstrate that the southern IMF accommodates predominately dextral slip and should be integrated into kinematic fault models of strain distribution in Owens Valley.

  18. The genesis of an ‘interesting’ and important social and environmental accounting conversation: Celebrating the contribution of professor David Owen to social and environmental accounting and auditing (SEAA) research and practice

    NARCIS (Netherlands)

    O'Dwyer, B.

    2011-01-01

    This paper reflects on the nature of ‘interesting’ research in the context of the contributions Professor David Owen has made to the social and environmental accounting and auditing (SEAA) research field over his academic career. The paper reviews some of Professor Owen's key research themes and

  19. Understanding thermodynamic relationships and geochemical mass balances from catchment to coast: A tribute to the life and career of Owen P. Bricker III

    Science.gov (United States)

    Bricker, Suzanne B.; Mackenzie, Fred T.; Baron, Jill S.; Price, Jason

    2014-01-01

    This special volume of aquatic geochemistry is dedicated to the memory of Owen Peterson Bricker III (1936–2011) and serves as a tribute to his life and career. Owen had a distinguished and productive research career in both academics at Johns Hopkins University (Fig. 1) and as a public servant with the Maryland Geological Survey, the US Environmental Protection Agency, and the US Geological Survey. He was a pioneer and leader in aqueous geochemistry, who applied a study approach that quantified mineral weathering reactions and equilibrium thermodynamic relations to better understand the chemical evolution of stream water in small watersheds. He will be especially remembered for his efforts to establish rigorous field studies in small catchments around the United States as a means of quantifying the sources of acid-neutralizing capacity that affect the chemical status and biological health of natural waters.

  20. Ground-Water Quality Data in the Owens and Indian Wells Valleys Study Unit, 2006: Results from the California GAMA Program

    Science.gov (United States)

    Densmore, Jill N.; Fram, Miranda S.; Belitz, Kenneth

    2009-01-01

    Ground-water quality in the approximately 1,630 square-mile Owens and Indian Wells Valleys study unit (OWENS) was investigated in September-December 2006 as part of the Priority Basin Project of Groundwater Ambient Monitoring and Assessment (GAMA) Program. The GAMA Priority Basin Project was developed in response to the Groundwater Quality Monitoring Act of 2001 and is being conducted by the U.S. Geological Survey (USGS) in collaboration with the California State Water Resources Control Board (SWRCB). The Owens and Indian Wells Valleys study was designed to provide a spatially unbiased assessment of raw ground-water quality within OWENS study unit, as well as a statistically consistent basis for comparing water quality throughout California. Samples were collected from 74 wells in Inyo, Kern, Mono, and San Bernardino Counties. Fifty-three of the wells were selected using a spatially distributed, randomized grid-based method to provide statistical representation of the study area (grid wells), and 21 wells were selected to evaluate changes in water chemistry in areas of interest (understanding wells). The ground-water samples were analyzed for a large number of synthetic organic constituents [volatile organic compounds (VOCs), pesticides and pesticide degradates, pharmaceutical compounds, and potential wastewater- indicator compounds], constituents of special interest [perchlorate, N-nitrosodimethylamine (NDMA), and 1,2,3- trichloropropane (1,2,3-TCP)], naturally occurring inorganic constituents [nutrients, major and minor ions, and trace elements], radioactive constituents, and microbial indicators. Naturally occurring isotopes [tritium, and carbon-14, and stable isotopes of hydrogen and oxygen in water], and dissolved noble gases also were measured to help identify the source and age of the sampled ground water. This study evaluated the quality of raw ground water in the aquifer in the OWENS study unit and did not attempt to evaluate the quality of treated water

  1. Transaction Costs: Valuation Disputes, Bi-Lateral Monopoly Bargaining and Third-Party Effects in Water Rights Exchanges. The Owens Valley Transfer to Los Angeles

    OpenAIRE

    Gary D. Libecap

    2004-01-01

    Between 1905 and 1934 over 869 farmers in Owens Valley, California sold their land and associated water rights to Los Angeles, 250 miles to the southwest. This agriculture-to-urban water transfer increased Los Angeles' water supply by over 4 times, making the subsequent dramatic growth of the semi-arid city possible, generating large economic returns. The exchange took water from a marginal agricultural area and transferred it via the Los Angeles Aqueduct. No other sources of water became ava...

  2. Stakeholder collaboration in a prospective World Heritage Area: The case of Kokoda and the Owen Stanley Ranges

    Directory of Open Access Journals (Sweden)

    Amy Louise Bott

    2011-05-01

    Full Text Available The process of listing a World Heritage Area (WHAc in developing countries is often much more complex than in the West. Often all stakeholders are not taken into consideration and there is a lack of understanding of the concept of World Heritage and what it entails. This is particularly true for stakeholders who live in or adjacent to the proposed WHA, such as local communities. This paper presents a case study of Kokoda and the Owen Stanley Ranges, currently a tentative World Heritage site, to show the complexities in stakeholder collaboration and attribution in the process of World Heritage designation. Six key stakeholders were identified in the study. Upon examination of four attributes of stakeholders: power; legitimacy; urgency; and proximity, it was found that all stakeholders in this case study have a high legitimacy in the listing process however only the local community holds high levels of power, urgency and proximity. Additionally it was found that several stakeholders, like the private sector, have too many weak relationships with other stakeholders, resulting in a lack of communication. These findings present the first step in understanding how it might be possible to improve the listing process of World Heritage Sites in developing countries through effective stakeholder collaboration.

  3. Four new species of coccidia (Apicomplexa: Eimeriidae) from Owen Stanley Skinks, Papuascincus stanleyanus (Sauria: Scincidae), from Papua New Guinea

    Science.gov (United States)

    McAllister, Chris T.; Duszynski, Donald W.; Fisher, Robert N.; Austin, Christopher C.

    2014-01-01

    Between September and November 1991, 12 Owen Stanley skinks, Papuascincus stanleyanus (Booulenger) were collected from various localities on Papua New Guinea and examined for coccidians. Six (50%) were found to harbour four eimerians that we describe here as new. Oocysts of Eimeria burseyi sp. n. were elongate to ellipsoidal with a bilayered wall and measured (length x width, L x W) 36.0 x 24.0 microm, with a L/W ratio of 1.5. Both micropyle and oocyst residuum were absent, but a polar granule was present. Oocysts of Eimeria goldbergi sp. n. were ellipsoidal, with a bilayered wall, and measured 21.4 x 16.1 microm; L/W ratio was 1.3. Both micropyle and oocyst residuum were absent, but a single or fragmented polar granule was present. Oocysts of Eimeria boulengeri sp. n. were spheroidal to slightly subspheroidal, with a thin, single-layered wall that readily collapses, and measured 16.0 microm, L/W ratio was 1.0. Both micropyle and oocyst residuum were absent, but usually one (sometimes two) polar granule(s) were present. Oocysts of Eimeria niuginiensis sp. n. were oblong to tapered with a bilayered wall, and measured 20.0 x 13.1 microm; L/W ratio was 1.5. A micropyle, oocyst residuum and polar granule were absent. To our knowledge, these represent the only coccidians ever described from P. stanleyanus.

  4. Na, K, Ca, Mg, and U-series in fossil bone and the proposal of a radial diffusion–adsorption model of uranium uptake

    International Nuclear Information System (INIS)

    Cid, A.S.; Anjos, R.M.; Zamboni, C.B.; Cardoso, R.; Muniz, M.; Corona, A.; Valladares, D.L.

    2014-01-01

    Fossil bones are often the only materials available for chronological reconstruction of important archeological sites. However, since bone is an open system for uranium, it cannot be dated directly and therefore it is necessary to develop models for the U uptake. Hence, a radial diffusion–adsorption (RDA) model is described. Unlike the classic diffusion–adsorption (D–A) model, RDA uses a cylindrical geometry to describe the U uptake in fossil bones. The model was applied across a transverse section of a tibia of an extinct megamammal Macrauchenia patachonica from the La Paz Local Fauna, Montevideo State, Uruguay. Measurements of spatial distribution of Na, K, Ca, and Mg were also performed by neutron activation analysis (NAA). Gamma-ray spectrometric U-series dating was applied to determine the age of the bone sample. From U concentration profile, it was possible to observe the occurrence of a relatively slow and continuous uranium uptake under constant conditions that had not yet reached equilibrium, since the uranium distribution is a ∪-shaped closed-system. Predictions of the RDA model were obtained for a specific geochemical scenario, indicating that the effective diffusion coefficient D/R in this fossil bone is (2.4 ± 0.6)10 −12 cm 2 s −1 . Mean values of Na, K, Ca, and Mg contents along the radial line of the fossil tibia are consistent with the expected behavior for spatial distributions of these mineral elements across a modern bone section. This result indicates that the fossil tibia may have its mineral structure preserved. - Highlights: • The Radial diffusion–adsorption (RDA) model is described. • RDA uses a cylindrical geometry to describe the U uptake in fossil bones. • We show new data for an extinct Macrauchenia patachonica from Uruguay. • Spatial distributions of Na, K, Ca, Mg, and U across a fossil bone section. • Gamma-ray spectrometric U-series dating was applied to determine its age

  5. David Owen WILLIAMS

    CERN Multimedia

    2006-01-01

    Lidy Williams-Oonk and her children Mark & Marietta, being unable to thank everybody individually, would like to express their sincere thanks to friends and colleagues at CERN and abroad for their great help and support, their messages and flowers, as well as their donations to the Ligue Genevoise contre le Cancer, on the death of their beloved husband and father.

  6. Climate and hydrology of the last interglaciation (MIS 5) in Owens Basin, California: Isotopic and geochemical evidence from core OL-92

    Science.gov (United States)

    Li, H.-C.; Bischoff, J.L.; Ku, T.-L.; Zhu, Z.-Y.

    2004-01-01

    ??18O, ??13C, total organic carbon, total inorganic carbon, and acid-leachable Li, Mg and Sr concentrations on 443 samples from 32 to 83 m depth in Owens Lake core OL-92 were analyzed to study the climatic and hydrological conditions between 60 and 155 ka with a resolution of ???200 a. The multi-proxy data show that Owens Lake overflowed during wet/cold conditions of marine isotope stages (MIS) 4, 5b and 6, and was closed during the dry/warm conditions of MIS 5a, c and e. The lake partially overflowed during MIS 5d. Our age model places the MIS 4/5 boundary at ca 72.5 ka and the MIS 5/6 boundary (Termination II) at ca 140 ka, agreeing with the Devils Hole chronology. The diametrical precipitation intensities between the Great Basin (cold/wet) and eastern China (cold/dry) on Milankovitch time scales imply a climatic teleconnection across the Pacific. It also probably reflects the effect of high-latitude ice sheets on the southward shifts of both the summer monsoon frontal zone in eastern Asia and the polar jet stream in western North America during glacial periods. ?? 2003 Elsevier Ltd. All rights reserved.

  7. Mark Bowden and Owen Sheers present "Creation" [working title]: a new musical and poetic collaborative project for chorus, soloists and orchestra

    CERN Multimedia

    2013-01-01

    "Creation" is a new collaboration between Mark Bowden, in his role as BBC National Orchestra of Wales’ Resident Composer, and the poet and novelist Owen Sheers.   Taking Haydn's 1798 work "The Creation" as a point of departure, they plan to create a new cantata for the digital age exploring the meaning of creation in the twenty-first century. Through engagement with developments in biology and physics they plan to create a new work incorporating poetry and music that will explore the latest ideas concerning the creation of matter and the emergence of life in the universe, whilst also delving into the human side of the brilliant minds that are currently working to uncover these secrets of the universe. More information is available here. Meet them at the CERN Library (bldg. 52 1-052) on Wednesday 2 October at 4 p.m. * Coffee will be served at 3.30 p.m.*

  8. Temperature profiles from expendable bathythermograph (XBT) casts from the USS R.A. OWENS and other platforms in a world-wide distribution in support of the Integrated Global Ocean Services System (IGOSS) project from 1968-08-09 to 1974-08-01 (NODC Accession 7500699)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — XBT data were collected from the R.A. OWENS and other platforms in support of the Integrated Global Ocean Services System (IGOSS) project. Data were collected by the...

  9. "3D_Fault_Offsets," a Matlab Code to Automatically Measure Lateral and Vertical Fault Offsets in Topographic Data: Application to San Andreas, Owens Valley, and Hope Faults

    Science.gov (United States)

    Stewart, N.; Gaudemer, Y.; Manighetti, I.; Serreau, L.; Vincendeau, A.; Dominguez, S.; Mattéo, L.; Malavieille, J.

    2018-01-01

    Measuring fault offsets preserved at the ground surface is of primary importance to recover earthquake and long-term slip distributions and understand fault mechanics. The recent explosion of high-resolution topographic data, such as Lidar and photogrammetric digital elevation models, offers an unprecedented opportunity to measure dense collections of fault offsets. We have developed a new Matlab code, 3D_Fault_Offsets, to automate these measurements. In topographic data, 3D_Fault_Offsets mathematically identifies and represents nine of the most prominent geometric characteristics of common sublinear markers along faults (especially strike slip) in 3-D, such as the streambed (minimum elevation), top, free face and base of channel banks or scarps (minimum Laplacian, maximum gradient, and maximum Laplacian), and ridges (maximum elevation). By calculating best fit lines through the nine point clouds on either side of the fault, the code computes the lateral and vertical offsets between the piercing points of these lines onto the fault plane, providing nine lateral and nine vertical offset measures per marker. Through a Monte Carlo approach, the code calculates the total uncertainty on each offset. It then provides tools to statistically analyze the dense collection of measures and to reconstruct the prefaulted marker geometry in the horizontal and vertical planes. We applied 3D_Fault_Offsets to remeasure previously published offsets across 88 markers on the San Andreas, Owens Valley, and Hope faults. We obtained 5,454 lateral and vertical offset measures. These automatic measures compare well to prior ones, field and remote, while their rich record provides new insights on the preservation of fault displacements in the morphology.

  10. David Owen Williams (1944 - 2006)

    CERN Multimedia

    2006-01-01

    Many people, not only at CERN but also throughout the world, were saddened to learn that their friend and colleague David Williams had passed away in the early hours of Tuesday 24 October. His death came after a year of fighting cancer with all of his usual determination and optimism. Even days before the end he was still welcoming to visitors, and was alert and interested in all their news. Born in 1944, David came to CERN from the University of Cambridge in 1966, with a degree in Physics and Computer Science. Joining what at the time was called the Documents and Data (DD) Division, in the earlier part his career he worked first on software for analysis of bubble chamber photographs, subsequently leading the group that supported experiments with 'hybrids' of bubble chambers and electronic detectors and then the group supporting online computing in experiments. He thus witnessed all of the enormous changes that took place in particle physics as the era of bubble chambers came to an end and the availability ...

  11. FLOODPLAIN MAPPING, Owen COUNTY, IN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  12. Preliminary study of the uranium favorability of granitic and contact-metamorphic rocks of the Owens Valley area, Inyo and Mono Counties, California, and Esmeralda and Mineral Counties, Nevada

    International Nuclear Information System (INIS)

    Cupp, G.M.; Mitchell, T.P.

    1978-01-01

    Granitic and contact-metamorphic rocks of the Owens Valley area were sampled to determine their favorability for uranium. Uranium deposits associated with these rocks were examined to determine the mode of occurrence. Metamorphic rocks near contacts with intrusive rocks include skarns, schists, quartzites, metaconglomerates, hornfels, gneisses, and metavolcanics. The grade of contact metamorphism ranges from slight to intense, depending upon the distance from the intrusive contact. The average U 3 O 8 content of the metamorphic rock samples is 3 ppM. Metamorphic rock samples in a roof pendant at the Claw prospect contain as much as 3 percent U 3 O 8 . Skarn samples from the Birch Creek pluton contain as much as 114 ppM U 3 O 8 ; those from the Santa Rita Flat pluton contain as much as 23 ppM U 3 O 8 . Most of the intrusive rocks are granite, quartz monzonite, or monzonite. Granodiorite and diorite are less common, and gabbro is rare. The average U 3 O 8 content of the crystalline rock samples is 4 ppM. Samples from a quartz-monzonite pluton east of Lone Pine, California, and quartz monzonite in the Santa Rosa Hills had maximum contents of 28 and 13 ppM U 3 O 8 , respectively. Areas of contact metamorphism and metasomatism, such as those at the Claw prospect and Birch Creek pluton, are probably the most favorable sites for uranium deposits. There are many miles of granitic and contact-metamorphic zones in which undiscovered uranium deposits may exist. Although the overall uranium content of granitic rocks appears to be low, the pluton east of Lone Pine and the Hunter Mountain pluton in the area of the Santa Rosa Hills have sufficient uranium to have acted as uranium and detrital source rocks for uranium deposits that may now be buried in Tertiary sediments in the basins around the plutons. The Claw deposit is the only known uranium deposit of a size and grade to be of possible commercial interest

  13. Transnationalism as Process, Diaspora as Condition | Owen ...

    African Journals Online (AJOL)

    In 2004 I embarked on 15 months of ethnographic fieldwork that spanned a six year period with Congolese migrants in Muizenberg, Cape Town. During fieldwork it was necessary to identify these migrants either as diasporic or as a transnational community given the purchase of transnationalism in the migration field.

  14. Owen's Intentionality Model in Integrative Psychotherapy

    African Journals Online (AJOL)

    denise

    The IPJP is a joint project of the Humanities Faculty of the University of Johannesburg (South Africa) and Edith Cowan ... Talk, Action, Belief: How the Intentionality Model Combines Attachment-Oriented .... application of the intentionality model in relation to ... Dr Guse's research interests include the training of psychologists,.

  15. Na, K, Ca, Mg, and U-series in fossil bone and the proposal of a radial diffusion-adsorption model of uranium uptake.

    Science.gov (United States)

    Cid, A S; Anjos, R M; Zamboni, C B; Cardoso, R; Muniz, M; Corona, A; Valladares, D L; Kovacs, L; Macario, K; Perea, D; Goso, C; Velasco, H

    2014-10-01

    Fossil bones are often the only materials available for chronological reconstruction of important archeological sites. However, since bone is an open system for uranium, it cannot be dated directly and therefore it is necessary to develop models for the U uptake. Hence, a radial diffusion-adsorption (RDA) model is described. Unlike the classic diffusion-adsorption (D-A) model, RDA uses a cylindrical geometry to describe the U uptake in fossil bones. The model was applied across a transverse section of a tibia of an extinct megamammal Macrauchenia patachonica from the La Paz Local Fauna, Montevideo State, Uruguay. Measurements of spatial distribution of Na, K, Ca, and Mg were also performed by neutron activation analysis (NAA). Gamma-ray spectrometric U-series dating was applied to determine the age of the bone sample. From U concentration profile, it was possible to observe the occurrence of a relatively slow and continuous uranium uptake under constant conditions that had not yet reached equilibrium, since the uranium distribution is a ∪-shaped closed-system. Predictions of the RDA model were obtained for a specific geochemical scenario, indicating that the effective diffusion coefficient D/R in this fossil bone is (2.4 ± 0.6)10(-12) cm(2)s(-1). Mean values of Na, K, Ca, and Mg contents along the radial line of the fossil tibia are consistent with the expected behavior for spatial distributions of these mineral elements across a modern bone section. This result indicates that the fossil tibia may have its mineral structure preserved. Copyright © 2014 Elsevier Ltd. All rights reserved.

  16. Communication and Development in Nigeria: A Discussion | Owens ...

    African Journals Online (AJOL)

    African Journal of Political Science. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 9, No 1 (2004) >. Log in or Register to get access to full text downloads.

  17. Territoriality: the example of the White Rhinoceros | Owen-Smith ...

    African Journals Online (AJOL)

    African Zoology. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 7, No 1 (1972) >. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Download this PDF file. The PDF file you selected should load here if your ...

  18. 76 FR 14099 - Withdrawal of the Notice of Proposed Exemption Involving Owens & Minor, Inc. (the Applicant...

    Science.gov (United States)

    2011-03-15

    ... DEPARTMENT OF LABOR Employee Benefits Security Administration [Application Number D-11638.... Ivan L. Strasfeld, Director, Office of Exemption Determinations, Employee Benefits Security... Employee Retirement Income Security Act of 1974, as amended, and from certain taxes imposed by the Internal...

  19. Taasleitud kadunud ja unustatud kino / Jonathan L. Owen ; tõlkinud Eva Näripea

    Index Scriptorium Estoniae

    Owen, Jonathan L.

    2011-01-01

    Arvustus: Via Transversa : Lost cinema of the former Eastern bloc. Eds. Eva Näripea, Andreas Trossek. Special issue of Koht ja paik/Place and location :Studies in environmental aesthetics and semiotics VII. Tallinn, 2008

  20. Konfliktikommunikatsioon: kas relvajõud on meediasõjaks valmis? / John Owen

    Index Scriptorium Estoniae

    Owens, John

    2014-01-01

    Ühendkuningriigi väljaanne "PR Week" arutleb, kas relvajõud on meediasõjaks valmis ning leiab, et kommunikatsiooni nähakse relvajõudude siseselt sõjapidamisest eraldiseisvana. Lisatud BBC julgeolekukorrespondendi Caroline Wyatt'i kommentaar

  1. El registro más antiguo de Hippidion Owen, 1869 (Mammalia, Perissodactyla en América del Sur

    Directory of Open Access Journals (Sweden)

    Reguero, M. A.

    1998-04-01

    Full Text Available The presence of Hippidion devillei in the Esquina Blanca locality (Jujuy, Argentina is confirmed and following the paleomagnetic data is placed near to the Matuyama/Gauss boundary. These remains represent the oldest record of Hippidion in South America. We consider that the validity of the Uquian Land Mammal Age should not be discarded in consideration that the Uquia region is better endowed than the Pampean.Se confirma la presencia de Hippidion devillei en la localidad de Esquina Blanca (Jujuy, Argentina y se sitúa, a partir de los datos paleomagnéticos, en una edad cercana al límite Matuyama/Gauss. Estos restos representan el registro más antiguo de esta especie en América del Sur. Consideramos que no se debe descartar la validez de la «Edad mamífero » Uquiense descrita por primera vez en esta región por tener ventajas sobre los afloramientos de la costa Bonaerense.

  2. Structural Evolution of the East Sierra Valley System (Owens Valley and Vicinity, California: A Geologic and Geophysical Synthesis

    Directory of Open Access Journals (Sweden)

    Richard J. Blakely

    2013-04-01

    Full Text Available The tectonically active East Sierra Valley System (ESVS, which comprises the westernmost part of the Walker Lane-Eastern California Shear Zone, marks the boundary between the highly extended Basin and Range Province and the largely coherent Sierra Nevada-Great Valley microplate (SN-GVm, which is moving relatively NW. The recent history of the ESVS is characterized by oblique extension partitioned between NNW-striking normal and strike-slip faults oriented at an angle to the more northwesterly relative motion of the SN-GVm. Spatially variable extension and right-lateral shear have resulted in a longitudinally segmented valley system composed of diverse geomorphic and structural elements, including a discontinuous series of deep basins detected through analysis of isostatic gravity anomalies. Extension in the ESVS probably began in the middle Miocene in response to initial westward movement of the SN-GVm relative to the Colorado Plateau. At ca. 3–3.5 Ma, the SN-GVm became structurally separated from blocks directly to the east, resulting in significant basin-forming deformation in the ESVS. We propose a structural model that links high-angle normal faulting in the ESVS with coeval low-angle detachment faulting in adjacent areas to the east.

  3. Structural evolution of the east Sierra Valley system (Owens Valley and vicinity), California: a geologic and geophysical synthesis

    Science.gov (United States)

    Stevens, Calvin H.; Stone, Paul; Blakely, Richard J.

    2013-01-01

    The tectonically active East Sierra Valley System (ESVS), which comprises the westernmost part of the Walker Lane-Eastern California Shear Zone, marks the boundary between the highly extended Basin and Range Province and the largely coherent Sierra Nevada-Great Valley microplate (SN-GVm), which is moving relatively NW. The recent history of the ESVS is characterized by oblique extension partitioned between NNW-striking normal and strike-slip faults oriented at an angle to the more northwesterly relative motion of the SN-GVm. Spatially variable extension and right-lateral shear have resulted in a longitudinally segmented valley system composed of diverse geomorphic and structural elements, including a discontinuous series of deep basins detected through analysis of isostatic gravity anomalies. Extension in the ESVS probably began in the middle Miocene in response to initial westward movement of the SN-GVm relative to the Colorado Plateau. At ca. 3-3.5 Ma, the SN-GVm became structurally separated from blocks directly to the east, resulting in significant basin-forming deformation in the ESVS. We propose a structural model that links high-angle normal faulting in the ESVS with coeval low-angle detachment faulting in adjacent areas to the east.

  4. Mitogenomic phylogenetics of fin whales (Balaenoptera physalus spp.) : Genetic evidence for revision of subspecies

    NARCIS (Netherlands)

    Archer, Frederick I.; Morin, Phillip A.; Hancock-Hanser, Brittany L.; Robertson, Kelly M.; Leslie, Matthew S.; Bérubé, Martine; Panigada, Simone; Taylor, Barbara L.

    2013-01-01

    There are three described subspecies of fin whales (Balaenoptera physalus): B. p. physalus Linnaeus, 1758 in the Northern Hemisphere, B. p. quoyi Fischer, 1829 in the Southern Hemisphere, and a recently described pygmy form, B. p. patachonica Burmeister, 1865. The discrete distribution in the North

  5. A tragedy of errors: the status of Carcharhinus blainville, 1816: Galeolamna owen, 1853; Eulamia gill, 1861; and the identity of Carcharhinus commersonii Blainville, 1825

    NARCIS (Netherlands)

    Boeseman, M.

    1960-01-01

    During recent research on a small number of freshwater sharks from Lake Jamoer, Netherlands New Guinea, I was struck by the fact that the consulted literature clearly showed a deplorable lack of agreement in the choice of a generic name for the species belonging to the genus Carcharhinus Blainville,

  6. Continuous bottom temperature measurements in strategic areas of the Florida Reef Tract at the M/V Alec Owen Maitland restoration site, 2006 - 2007 (NODC Accession 0039987)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The purpose of this project is to document bottom seawater temperature in strategic areas of the Florida Reef Tract on a continuing basis and make that information...

  7. Climatic Oscillations 10,000-155,000 yr B.P. at Owens Lake, California Reflected in Glacial Rock Flour Abundance and Lake Salinity in Core OL-92

    Science.gov (United States)

    Bischoff, J.L.; Menking, K.M.; Fitts, J.P.; Fitzpatrick, J.A.

    1997-01-01

    Chemical analyses of the acid-soluble and clay-size fractions of sediment samples (1500-yr resolution) reveal oscillations of lake salinity and of glacial advances in core OL-92 back to 155,000 yr B.P. Relatively saline conditions are indicated by the abundance of carbonate and smectite (both pedogenic and authigenic), reflected by Ca, Sr, and Mg in the acid-soluble suite, and by Cs2O, excess MgO, and LOI (loss on ignition) in the clay-size fraction. Rock flour produced during glacial advances is represented by the abundance of detrital plagioclase and biotite in the clay-size fraction, the ratio of which remains essentially constant over the entire time span. These phases are quantitatively represented by Na2O, TiO2, Ba, and Mn in the clay fraction. The rock-flour record indicates two major ice-advances during the penultimate glacial cycle corresponding to marine isotope stage (MIS) 6, no major advances during the last interglaciation (entire MIS 5), and three major advances during the last glacial cycle (MIS 2, 3, and 4). The ages of the latter three correspond rather well to 36Cl dates reported for Sierra Nevada moraines. The onset of the last interglaciation is shown by abrupt increases in authigenic CaCO3 and an abrupt decrease in rock flour, at about 118,000 yr B.P. according to our time scale. In contrast, the boundary appears to be gradual in the ??18O record in which the change from light to heavy values begins at about 140,000 yrs B.P. The exact position of the termination, therefore, may be proxy-dependent. Conditions of high carbonate and low rock flour prevailed during the entire period from 118,000 yr B.P. until the glacial advance at 53,000 yr B.P. signaled the end of this long interglaciation. ?? 1997 University of Washington.

  8. Climatic Oscillations 10,000-155,000 yr B.P. at Owens Lake, California Reflected in Glacial Rock Flour Abundance and Lake Salinity in Core OL-92

    Science.gov (United States)

    Bischoff, James L.; Menking, Kirsten M.; Fitts, Jeffrey P.; Fitzpatrick, John A.

    1997-11-01

    Chemical analyses of the acid-soluble and clay-size fractions of sediment samples (1500-yr resolution) reveal oscillations of lake salinity and of glacial advances in core OL-92 back to 155,000 yr B.P. Relatively saline conditions are indicated by the abundance of carbonate and smectite (both pedogenic and authigenic), reflected by Ca, Sr, and Mg in the acid-soluble suite, and by Cs 2O, excess MgO, and LOI (loss on ignition) in the clay-size fraction. Rock flour produced during glacial advances is represented by the abundance of detrital plagioclase and biotite in the clay-size fraction, the ratio of which remains essentially constant over the entire time span. These phases are quantitatively represented by Na 2O, TiO 2, Ba, and Mn in the clay fraction. The rock-flour record indicates two major ice-advances during the penultimate glacial cycle corresponding to marine isotope stage (MIS) 6, no major advances during the last interglaciation (entire MIS 5), and three major advances during the last glacial cycle (MIS 2, 3, and 4). The ages of the latter three correspond rather well to 36Cl dates reported for Sierra Nevada moraines. The onset of the last interglaciation is shown by abrupt increases in authigenic CaCO 3and an abrupt decrease in rock flour, at about 118,000 yr B.P. according to our time scale. In contrast, the boundary appears to be gradual in the δ 18O record in which the change from light to heavy values begins at about 140,000 yrs B.P. The exact position of the termination, therefore, may be proxy-dependent. Conditions of high carbonate and low rock flour prevailed during the entire period from 118,000 yr B.P. until the glacial advance at 53,000 yr B.P. signaled the end of this long interglaciation.

  9. Wisconsin Glaciation of the Sierra Nevada (79,000-15,000 yr B.P.) as Recorded by Rock Flour in Sediments of Owens Lake, California

    Science.gov (United States)

    Bischoff, James L.; Cummins, Kathleen

    2001-01-01

    Chemical analyses of the clay-sized fractions of 564 continuous sediment samples (200-yr resolution) from composite core OL90/92 allow quantification of an abundance of glacial rock flour. Rock flour produced during glacier advances is represented by clay-sized plagioclase, K-feldspar, and biotite in homogeneous internal composition. The abundance of rock flour is deemed proportional to the intensity of glacies advances. Age control for the composite section is provided by combining previously published radiocarbon dates on organics, U/Th dates on ostracode shells, and U/Th dates on saline minerals from nearby Searles Lake correlated to OL92 by pollen. The rock flour record displays three levels of variability: (1) a dominant one of about 20,000 yr related to summer insolation and precipitation; (2) an intermediate one of 3000-5000 yr, perhaps related to North Atlantic Heinrich events; and (3) a minor one of 1000-2000 yr, perhaps related to North Atlantic thermohaline-driven air-temperature variation.

  10. Continuous bottom temperature measurements in strategic areas of the Florida Reef Tract at the M/V Alec Owen Maitland restoration site, 2004 - 2006 (NODC Accession 0010585)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The purpose of this project is to document bottom seawater temperature in strategic areas of the Florida Reef Tract on a continuing basis and make that information...

  11. Continuous bottom temperature measurements in strategic areas of the Florida Reef Tract at the M/V Alec Owen Maitland Restoration site, 2006 - 2007 (NODC Accession 0039987)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The purpose of this project is to document bottom seawater temperature in strategic areas of the Florida Reef Tract on a continuing basis and make that information...

  12. A revised cranial description of Massospondylus carinatus Owen (Dinosauria: Sauropodomorpha based on computed tomographic scans and a review of cranial characters for basal Sauropodomorpha

    Directory of Open Access Journals (Sweden)

    Kimberley E.J. Chapelle

    2018-01-01

    Full Text Available Massospondylus carinatus is a basal sauropodomorph dinosaur from the early Jurassic Elliot Formation of South Africa. It is one of the best-represented fossil dinosaur taxa, known from hundreds of specimens including at least 13 complete or nearly complete skulls. Surprisingly, the internal cranial anatomy of M. carinatus has never been described using computed tomography (CT methods. Using CT scans and 3D digital representations, we digitally reconstruct the bones of the facial skeleton, braincase, and palate of a complete, undistorted cranium of M. carinatus (BP/1/5241. We describe the anatomical features of the cranial bones, and compare them to other closely related sauropodomorph taxa such as Plateosaurus erlenbergiensis, Lufengosaurus huenei, Sarahsaurus aurifontanalis and Efraasia minor. We identify a suite of character states of the skull and braincase for M. carinatus that sets it apart from other taxa, but these remain tentative due to the lack of comparative sauropodomorph braincase descriptions in the literature. Furthermore, we hypothesize 27 new cranial characters useful for determining relationships in non-sauropodan Sauropodomorpha, delete five pre-existing characters and revise the scores of several existing cranial characters to make more explicit homology statements. All the characters that we hypothesized or revised are illustrated. Using parsimony as an optimality criterion, we then test the relationships of M. carinatus (using BP/1/5241 as a specimen-level exemplar in our revised phylogenetic data matrix.

  13. Census Report: Volume V, 1986. Sanitized Version.

    Science.gov (United States)

    1991-04-01

    0. 0599 OWAIS, MUHAMMAD 0954 OWEN, STEVEN R. 0916 OWENS, CLINT G. 0599 OWENS, GREGORY 0599 OWENS, RUSSELL E. 0837 OZDEMIR, LEVENT 0916 PACHECO, ERNEST...ORG NAME CODE SUSHINSKI, THOMAS C. 0916 SUTHERLAND , DEAN R. 0837 SVADBA, KEITH A. 0599 SVOBODA, THOMAS R. 0637 SWAIN, JEFFREY MANNING 0916 SWAIN

  14. La Contribution de la Qualité dans l’Education Pour Tous En Afrique Subsaharienne: Une analyse basée sur l’approche Shapley-Owen-Shorrocks

    OpenAIRE

    Romuald Foueka

    2017-01-01

    Contexte: Il est devenu évident que dans les pays africains, le droit à l’éducation ne devait pas se limiter au droit d’être admis à l’école. Dès lors, le défi d’améliorer l’éducation en Afrique subsaharienne comprenait non seulement une dimension quantitative mais aussi une dimension qualitative. Objectif: Ainsi, notre étude avait pour objectif principal d’estimer la contribution de la qualité de l’éducation dans le développement de l’éducation pour tous (EPT) en Afrique francophone subsa...

  15. Presence of Arctotherium (Carnivora, Ursidae, Tremarctinae in a pre-cultural level of Baño Nuevo-1 cave (Central Patagonia, Chile

    Directory of Open Access Journals (Sweden)

    López Mendoza, P.

    2015-12-01

    Full Text Available The description of an I3 assigned to Arctotherium sp. obtained from the Baño Nuevo-1 site (Central Patagonia, Chile is presented. The finding was recovered from Layer 5 and it is associated to Macrauchenia sp., Lama guanicoe, Felidae, Camelidae, Equidae and Mylodontidae, within a sterile deposit of cultural material, dated between ca. 13.500 and 11.200 BP. Despite the fact that it is only a single specimen, such finding extends the known distribution for the genus in Chile.Se presenta la descripción de un I3 asignado a Arctotherium sp. proveniente del sitio Baño Nuevo-1 (Patagonia Central, Chile. El hallazgo fue realizado en la Capa 5 y está asociado a restos de Macrauchenia sp., Lama guanicoe, Felidae, Camelidae, Equidae y Mylodontidae dentro de un depósito estéril de material cultural, datado entre los ca. 13.500 y 11.200 años AP. Aunque se trata de un único espécimen, amplía el rango de distribución conocido para este género en Chile.

  16. Järvakandi Klaasi edu tõstab emafirma aktsiat New Yorgi börsil / Annika Matson

    Index Scriptorium Estoniae

    Matson, Annika, 1976-

    2005-01-01

    USA kontserni Owens-Illinoisi tütarfirmadest, turuosast, Eesti tütarfirma AS-i Järvakandi Klaas laienemisplaanidest. Diagrammid: Järvakandi Klaas ootab tänavu taas kasumi kasvu; Owens-Illinoisi aktsia on investoritele tulus olnud. Vt. samas: Owens-Illinois on olnud hea aktsia

  17. Fossil Bovidae from the Malay Archipelago and the Punjab

    NARCIS (Netherlands)

    Hooijer, D.A.

    1958-01-01

    CONTENTS Introduction................... 1 Order Artiodactyla Owen............... 8 Family Bovidae Gray................ 8 Subfamily Bovinae Gill................ 8 Duboisia santeng (Dubois).............. 8 Epileptobos groeneveldtii (Dubois)............ 19 Hemibos triquetricornis Rütimeyer............

  18. A Rejoinder to Commentaries on "Integrated Reporting: A Review of Developments and Their Implications for the Accounting Curriculum"

    Science.gov (United States)

    Owen, Gareth

    2013-01-01

    In this rejoinder, Gareth Owen thanks both Dr. Kamp-Roelands and Dr. Correa Ruiz for their views and for putting forward many interesting and thought-provoking arguments concerning his paper (Owen, 2013). It is noted that both commentators broadly welcome the aims of this paper. They express approval of its review of the development of integrated…

  19. Keeping Our Eyes Open: Conducting Aerial Reconnaissance Without Space

    Science.gov (United States)

    2016-05-01

    TIMOTHY M. CULLEN (Date) ___________________________________ JAMES M. TUCCI (Date) iii DISCLAIMER The...in 2014/15, and USAF School of Advanced Air and Space Studies in 2015/16. v ACKNOWLEDGMENTS I would like to thank Colonel Timothy Cullen for...Admiral William Owens. In 1996 Owens described ISR as involving “sensor and reporting technologies associated with intelligence collection

  20. Geochemical evidence for diversity of dust sources in the southwestern United States

    Science.gov (United States)

    Reheis, M.C.; Budahn, J.R.; Lamothe, P.J.

    2002-01-01

    Several potential dust sources, including generic sources of sparsely vegetated alluvium, playa deposits, and anthropogenic emissions, as well as the area around Owens Lake, California, affect the composition of modern dust in the southwestern United States. A comparison of geochemical analyses of modern and old (a few thousand years) dust with samples of potential local sources suggests that dusts reflect four primary sources: (1) alluvial sediments (represented by Hf, K, Rb, Zr, and rare-earth elements, (2) playas, most of which produce calcareous dust (Sr, associated with Ca), (3) the area of Owens (dry) Lake, a human-induced playa (As, Ba, Li, Pb, Sb, and Sr), and (4) anthropogenic and/or volcanic emissions (As, Cr, Ni, and Sb). A comparison of dust and source samples with previous analyses shows that Owens (dry) Lake and mining wastes from the adjacent Cerro Gordo mining district are the primary sources of As, Ba, Li, and Pb in dusts from Owens Valley. Decreases in dust contents of As, Ba, and Sb with distance from Owens Valley suggest that dust from southern Owens Valley is being transported at least 400 km to the east. Samples of old dust that accumulated before European settlement are distinctly lower in As, Ba, and Sb abundances relative to modern dust, likely due to modern transport of dust from Owens Valley. Thus, southern Owens Valley appears to be an important, geochemically distinct, point source for regional dust in the southwestern United States. Copyright ?? 2002 Elsevier Science Ltd.

  1. Leadership Identity Development: Challenges in Applying a Developmental Model

    Science.gov (United States)

    Komives, Susan R.; Longerbeam, Susan D.; Mainella, Felicia; Osteen, Laura; Owen, Julie E.; Wagner, Wendy

    2009-01-01

    The leadership identity development (LID) grounded theory (Komives, Owen, Longerbeam, Mainella, & Osteen, 2005) and related LID model (Komives, Longerbeam, Owen, Mainella, & Osteen, 2006) present a framework for understanding how individual college students develop the social identity of being collaborative, relational leaders…

  2. Book Review Psychotherapy and Phenomenology By Ian Rory ...

    African Journals Online (AJOL)

    Book Review Psychotherapy and Phenomenology By Ian Rory Owen (2006) ... Psychotherapy and Phenomenology: On Freud, Husserl and Heidegger. New York: iUniverse. Soft Cover (352 ... AJOL African Journals Online. HOW TO USE ...

  3. 76 FR 68500 - Performance Review Board Appointments

    Science.gov (United States)

    2011-11-04

    ...-Bartels, Leslie Ishee, Mary Katherine Iudicello, Fay Jackson, Andrew Jacobson, Rachel Keable, Edward..., Bernard More, Robert Mulhern, Thomas Nedd, Michael O'Dell, Margaret Owens, Glenda Palma, Juan Payne...

  4. Plaadid / Margus Kiis

    Index Scriptorium Estoniae

    Kiis, Margus

    2004-01-01

    Uutest plaatidest Fintelligens "Nää vuodet 1997-2003", Josh Roseman Unit "Treats For The Nightwalker", Mark Owen "In Your Own Time", Just Jack "The Outer Marker", Young Heart Attack "Mouthful Of Love", Stereolab "Margerine Eclipse"

  5. Molecular hematology

    National Research Council Canada - National Science Library

    Provan, Drew; Gribben, John

    2010-01-01

    ... The molecular basis of hemophilia, 219 Paul LF Giangrande 4 The genetics of acute myeloid leukemias, 42 Carolyn J Owen & Jude Fitzgibbon 19 The molecular basis of von Willebrand disease, 233 Luciano Baronc...

  6. Download this PDF file

    African Journals Online (AJOL)

    erbeyli incir araştırma

    2014-11-19

    Nov 19, 2014 ... outdoor access (Fanatico et al., 2005; Owens et al., 2006; Wang et al., 2009; ... intestinal health in organically reared chickens. ..... There were no meat yield benefits, except for thigh meat, in the spring season with a diet.

  7. 75 FR 29189 - Emerald Ash Borer; Addition of Quarantined Areas in Kentucky, Michigan, Minnesota, New York...

    Science.gov (United States)

    2010-05-25

    ..., Indiana, Minnesota, Michigan, Ohio, Pennsylvania, West Virginia, and Wisconsin have already been..., Henry, Jefferson, Jessamine, Kenton, Oldham, Owen, Pendleton, Scott, Shelby, Trimble, and Woodford.... Shelby County. The entire county. Trimble County. The entire county. Woodford County. The entire county...

  8. African Zoology - Vol 32, No 1 (1997)

    African Journals Online (AJOL)

    Short Communications Fruit selection in the olive thrush: the importance of colour · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. MJ Sanders, RN Owen-Smith, N Pillay ...

  9. Inimene ja šimpans väärtustavad omandit

    Index Scriptorium Estoniae

    2012-01-01

    Ajakirjas Evolution and Humen Behavior ilmunud USA Vanderbilti ülikooli teadlase Owen Jonesi uuringust enda omanduses olevate asjade väärtuse ülehindamise efektist inimahvide seas šimpanside näitel

  10. 75 FR 19997 - Endangered and Threatened Wildlife and Plants; Permit Applications

    Science.gov (United States)

    2010-04-16

    ... Application Number: TE07361A. Applicant: Nicholas L. Owens, Chicago, Illinois. The applicant requests a permit... (Epioblasma brevidens), Oyster Mussel (E. capsaeformis), Tan riffleshell (E. florentina walkeri), Catspaw (E...

  11. RJHS Vol 4(2).cdr

    African Journals Online (AJOL)

    ABEOLUGBENGAS

    These include gravimetric measurement, haemoglobin calorimetry, photometric techniques and volumetric assessment (Wilcox,. Hunt and Owen, 1959; Ashrat and Ramadani,. 2006). Other modalities of blood loss assessment include alterations in laboratory results (such as haemoglobin or haematocrit levels), mechanical.

  12. 78 FR 57661 - Agency Information Collection Activities: Announcement of the Office of Management and Budget...

    Science.gov (United States)

    2013-09-19

    ... Reduction Act AGENCY: Occupational Safety and Health Administration (OSHA), Labor. ACTION: Notice... DEPARTMENT OF LABOR Occupational Safety and Health Administration Agency Information Collection... or Todd Owen, Directorate of Standards and Guidance, Occupational Safety and Health Administration, U...

  13. Konverents avardas osalejate silmaringi / Liis Lukk

    Index Scriptorium Estoniae

    Lukk, Liis

    2010-01-01

    Viljandis peeti 26. märtsil rakendusteatriteemalist konverentsi "Teater kogukonna hüvanguks" ettekannete, töötubade ja etendustega, kus peakülaline Allan Owens korraldas protsessidraama töötoa.

  14. Development of an automated desktop procedure for defining macro ...

    African Journals Online (AJOL)

    2006-07-03

    break points' such as ... An automated desktop procedure was developed for computing statistically defensible, multiple change .... from source to mouth. .... the calculated value was less than the test statistic given in Owen.

  15. Two New Species of Bibloplectus Reitter (Coleoptera: Staphylinidae: Pselaphinae) from the Orlando Park Collection, Field Museum of Natural History.

    Science.gov (United States)

    Owens, Brittany E; Carlton, Christopher E

    2018-04-10

    Two new species of Bibloplectus Reitter, 1881 are described from the Orlando Park Collection of Pselaphinae at the FMNH (Field Museum of Natural History, Chicago, IL, USA): Bibloplectus silvestris Owens and Carlton, new species (type locality, Urbana, IL, USA) and Bibloplectus wingi Owens and Carlton, new species (type locality, Shades State Park, IN, USA). Types of these new species were part of a series of specimens bearing unpublished Park manuscript names in both the pinned and slide collection at the FMNH. They bring the total number of species in the genus in eastern North America to twenty-three. Resolving these manuscript names adds to previous efforts to uncover elements of the hidden diversity of North American Bibloplectus from museum collections (Owens and Carlton 2016, Owens and Carlton 2017) and highlights the importance of close examination of the Orlando Park pselaphine collection as a valuable historic and taxonomic resource.

  16. The NATO SOF Air Wing: A Basing Decision

    Science.gov (United States)

    2012-12-01

    11 Susan Hesse Owen & Mark S. Daskin , “Strategic Facility Location: A Review,” European Journal of Operational Research 111, (1998), 423. 6 the...Journal of Travel Research 45, (2006):167–174. Owen, Susan Hesse and Daskin , Mark S. “Strategic Facility Location: A Review.” European Journal of...WING: A BASING DECISION by James M. Cox December 2012 Thesis Advisor: William Fox Second Reader: Brian Greenshields THIS PAGE

  17. What Military Officers Need to Know About Civil-Military Relations

    Science.gov (United States)

    2012-04-01

    2012, Vol. 65, No. 2 Mackubin Thomas Owens ivil-military relations describe the interactions among the people of a state, the institutions of that...civilians for the unexpect- edly difficult occupation of Iraq,” one close observer—U.S. Army major Isaiah Wilson III, an official historian of the...U.S. Civil- Military Relations. 4. I have addressed these questions in depth in Mackubin Thomas Owens, US Civil-Military Relations after 9/11

  18. Mitogenomic phylogenetics of fin whales (Balaenoptera physalus spp.: genetic evidence for revision of subspecies.

    Directory of Open Access Journals (Sweden)

    Frederick I Archer

    Full Text Available There are three described subspecies of fin whales (Balaenoptera physalus: B. p. physalus Linnaeus, 1758 in the Northern Hemisphere, B. p. quoyi Fischer, 1829 in the Southern Hemisphere, and a recently described pygmy form, B. p. patachonica Burmeister, 1865. The discrete distribution in the North Pacific and North Atlantic raises the question of whether a single Northern Hemisphere subspecies is valid. We assess phylogenetic patterns using ~16 K base pairs of the complete mitogenome for 154 fin whales from the North Pacific, North Atlantic--including the Mediterranean Sea--and Southern Hemisphere. A Bayesian tree of the resulting 136 haplotypes revealed several well-supported clades representing each ocean basin, with no haplotypes shared among ocean basins. The North Atlantic haplotypes (n = 12 form a sister clade to those from the Southern Hemisphere (n = 42. The estimated time to most recent common ancestor (TMRCA for this Atlantic/Southern Hemisphere clade and 81 of the 97 samples from the North Pacific was approximately 2 Ma. 14 of the remaining North Pacific samples formed a well-supported clade within the Southern Hemisphere. The TMRCA for this node suggests that at least one female from the Southern Hemisphere immigrated to the North Pacific approximately 0.37 Ma. These results provide strong evidence that North Pacific and North Atlantic fin whales should not be considered the same subspecies, and suggest the need for revision of the global taxonomy of the species.

  19. One hundred and fifty years of Coulomb stress history along the California-Nevada border, USA

    Science.gov (United States)

    Verdecchia, Alessandro; Carena, Sara

    2015-02-01

    The region north of the Garlock Fault between the Sierra Nevada and Death Valley has experienced at least eight Mw ≥ 6 earthquakes in historical times, beginning with the 1872, Mw 7.5, Owens Valley earthquake. Furthermore, since 1978, the Long Valley Caldera has been undergoing periods of unrest, with earthquake swarms and resurgence. Our goal is to determine whether the 1872 Owens Valley earthquake and the caldera unrest have influenced the evolution of seismicity in the area. We model the evolution of coseismic, postseismic, and interseismic Coulomb stress change (Coulomb failure stress (ΔCFS)) in the region due to both Mw ≥ 6 earthquakes and caldera inflation in the last 150 years. Our results show that the 1872 Owens Valley earthquake has an important influence on subsequent events, strongly encouraging faulting in northern Owens Valley while inhibiting it elsewhere. There is also a correlation between caldera inflation and seismicity in northern Owens Valley, evidenced by the west-to-east migration of earthquakes from the Long Valley Caldera toward the White Mountains immediately following the 1978 caldera inflation event. Finally, we show that a total ΔCFS increase of up to 30 bars in the last 150 years has occurred on part of the White Mountains fault, making it a possible candidate for the next major earthquake in this region.

  20. New Polymer Electrolyte Cell Systems

    Science.gov (United States)

    Smyrl, William H.; Owens, Boone B.; Mann, Kent; Pappenfus, T.; Henderson, W.

    2004-01-01

    PAPERS PUBLISHED: 1. Pappenfus, Ted M.; Henderson, Wesley A.; Owens, Boone B.; Mann, Kent R.; Smyrl, William H. Complexes of Lithium Imide Salts with Tetraglyme and Their Polyelectrolyte Composite Materials. Journal of the Electrochemical Society (2004), 15 1 (2), A209-A2 15. 2. Pappenfus, Ted M.; Henderson, Wesley A.; Owens, Boone B.; Mann, Kent R.; Smyrl, William H. Ionic-liquidlpolymer electrolyte composite materials for electrochemical device applications. Polymeric Materials Science and Engineering (2003), 88 302. 3. Pappenfus, Ted R.; Henderson, Wesley A.; Owens, Boone B.; Mann, Kent R.; and Smyrl, William H. Ionic Conductivity of a poly(vinylpyridinium)/Silver Iodide Solid Polymer Electrolyte System. Solid State Ionics (in press 2004). 4. Pappenfus Ted M.; Mann, Kent R; Smyrl, William H. Polyelectrolyte Composite Materials with LiPFs and Tetraglyme. Electrochemical and Solid State Letters, (2004), 7(8), A254.

  1. Rapid Conditioning for the Next Generation Melting System

    Energy Technology Data Exchange (ETDEWEB)

    Rue, David M. [Gas Technology Institute, Des Plaines, IL (United States)

    2015-06-17

    This report describes work on Rapid Conditioning for the Next Generation Melting System under US Department of Energy Contract DE-FC36-06GO16010. The project lead was the Gas Technology Institute (GTI). Partners included Owens Corning and Johns Manville. Cost share for this project was provided by NYSERDA (the New York State Energy Research and Development Authority), Owens Corning, Johns Manville, Owens Illinois, and the US natural gas industry through GTI’s SMP and UTD programs. The overreaching focus of this project was to study and develop rapid refining approaches for segmented glass manufacturing processes using high-intensity melters such as the submerged combustion melter. The objectives of this project were to 1) test and evaluate the most promising approaches to rapidly condition the homogeneous glass produced from the submerged combustion melter, and 2) to design a pilot-scale NGMS system for fiberglass recycle.

  2. Transport Imaging of Spatial Distribution of Mobility-Lifetime (Micro Tau) Product in Bulk Semiconductors for Nuclear Radiation Detection

    Science.gov (United States)

    2012-06-01

    reproducibility for currents of 3×10-10 A, and 6×10-10 A. An operating current of 1×10-10 A shows higher variations in the distribution beginning at...York: John Wiley & Sons, 2000. [21] A. Owens and A. Peacock , “Compound semiconductor radiation detectors,” Nucl. Instr. and Meth. A, vol. 531, pp. 18...A. G. Kozorezov, J. K. Wigmore, A. Owens, R. den Hartog, A. Peacock , and H. A. Al-Jawari, “Resolution degradation of semiconductor detectors due to

  3. The remedial conservation and support jacketing of the Massospondylus carinatus neotype

    OpenAIRE

    Graham, M; Choiniere, JN; Jirah, S; Barrett, PM

    2018-01-01

    0000-0002-1852-9709 Massopondylus carinatus Owen, 1854 is a non-sauropodan sauropodomorph (‘prosauropod’) dinosaur whose remains are abundant in the Upper Karoo Supergroup sediments of southern Africa (e.g. Owen, 1854; Seeley, 1895; Cooper, 1981; Gow, 1990; Gow et al., 1990; Sues et al., 2004; Barrett and Yates, 2006; Reisz et al., 2005). It occurs at numerous localities in the Upper Elliot and Clarens formations of South Africa and Lesotho, as well as in the Forest Sandstone Formation of ...

  4. A New Look for the Shopping Mall

    Science.gov (United States)

    1985-01-01

    STRUCTO-FAB, a product of Owens-Corning Fiberglas Corporation, is a lightweight but extremely durable tent-like material made of Fiberglas coated with Teflon. It transmits daylight with a reduced need for artificial lighting. It is an outgrowth of a material formulated by NASA in 1967 as a new space suit fabric. Owens-Corning and DuPont provided the original material, which was the basis for Structo-Fab, a permanent architectural fabric used for shopping malls, sports stadiums, etc.

  5. Exogenous fibrolytic enzymes to unlock nutrients: Histological ...

    African Journals Online (AJOL)

    Useni , Alain

    2013-07-08

    M-Bed, embedding compound, Bright Instrument Company Ltd, ... system attached to an IX-81 inverted microscope equipped with a .... Colombatto, D., Mould, F.L., Bhat, M.K. Morgavi, D.P., Beauchemin, K.A. & Owen, E., 2003.

  6. Correlation of Effective Dispersive and Polar Surface Energies in Heterogeneous Self-Assembled Monolayer Coatings

    DEFF Research Database (Denmark)

    Zhuang, Yanxin; Hansen, Ole

    2009-01-01

    grown oil oxidized (100) silicon Surfaces in a vapor phase process using five different precursors. Experimentally, effective surface energy components of the fluorocarbon self-assembled monolayers were determined from measured contact angles using the Owens-Wendt-Rabel-Kaelble method. We show...

  7. 78 FR 21413 - Notice of Intent To Repatriate Cultural Items: The Field Museum of Natural History, Chicago, IL

    Science.gov (United States)

    2013-04-10

    ... cultural items listed in this notice meet the definition of sacred objects and objects of cultural... Natural History, Chicago, IL, that meet the definition of sacred objects and objects of cultural patrimony... ``Apache's Medicine-man's effigy.'' Charles Owen had previously seen the figure on the Apache Reservation...

  8. Pop / Tõnu Kaalep

    Index Scriptorium Estoniae

    Kaalep, Tõnu, 1966-2018

    2002-01-01

    Heliplaatidest Holger Czukay "Linear City: Internet Audio Collabs". U-She & Holger Czukay "Time and Tide". The Breeders "Title TK". Jim Black "Splay". Gotan Project "La Revancha Del Tango". Robert Owens "Lowe Will Find Its Way". Green Velvet "Whatever". Alex Gopher with Demon presents "Wuz". Swan Lee "Enter"

  9. How Alzheimer's Changes the Brain

    Medline Plus

    Full Text Available ... 4-minute video shows how Alzheimer’s affects the human brain and looks at promising ideas to treat ... views 2:29 The resistant brain: nourishing our bodies against Alzheimer’s | Owen Carmichael | TEDxLSU - Duration: 12:17. ...

  10. A Commentary on "Integrated Reporting: A Review of Developments and Their Implications for the Accounting Curriculum"

    Science.gov (United States)

    Correa Ruiz, Carmen

    2013-01-01

    In this commentary, Correa Ruiz notes that from his analysis, Owen (2013) identified the essential elements to be included in a modern professional accounting curriculum, described how Association of Chartered Certified Accountants (ACCA) has embedded "Integrated Reporting" in its curriculum, and discussed future curriculum development,…

  11. Design

    Science.gov (United States)

    Buchanan, Richard; Cross, Nigel; Durling, David; Nelson, Harold; Owen, Charles; Valtonen, Anna; Boling, Elizabeth; Gibbons, Andrew; Visscher-Voerman, Irene

    2013-01-01

    Scholars representing the field of design were asked to identify what they considered to be the most exciting and imaginative work currently being done in their field, as well as how that work might change our understanding. The scholars included Richard Buchanan, Nigel Cross, David Durling, Harold Nelson, Charles Owen, and Anna Valtonen. Scholars…

  12. Iphras as an E-Learning Platform for Idiomatic Competence

    Science.gov (United States)

    Kiryakova-Dineva, Teodora; Levunlieva, Milena; Kyurova, Vyara

    2017-01-01

    The integration of E-learning has expanded in a variety of directions to a degree that its successful application is of great importance to all sectors of education and training. E-learning can offer unquestionable advantages to everyone involved in both the assessment and the knowledge transfer process (Owens and Floyd 2007; Luchoomun, McLuckie…

  13. The Use in Experiential Education of Ceremonies and Rituals from Native American Cultures.

    Science.gov (United States)

    Hall, McClellan; Couch, G. Owen

    1992-01-01

    McClellan Hall, a Native American, expresses distress and embarrassment at the improper use of Native cultural ceremonies at Association for Experiential Education conferences. G. Owen Couch, a non-Native, describes his personal experiences in using Native American philosophies inappropriately and his realization of the dangers in doing so. Both…

  14. Libraries and the Search for Academic Excellence. Proceedings of the Arden House Symposium (New York, New York, March 15-17, 1987).

    Science.gov (United States)

    1987

    In the introductory paper Patricia Senn Breivik provides background information on and an overview of a national symposium. This introduction is followed by the full text of nine papers presented at the symposium: (1) "The Academic Library and Education for Leadership" (Major R. Owens, U.S. House of Representatives); (2) "Academic…

  15. Book Review: Evolutionary Ecology of Birds: Life Histories, Mating ...

    African Journals Online (AJOL)

    Abstract. Book Title: Evolutionary Ecology of Birds: Life Histories, Mating Systems and Extinction. Book Authors: P.M. Bennett & I.P.F. Owens. Oxford University. Press. 2002. Pp. 272. Price £24.95 (paperback). ISBN 0 19 851089 6.

  16. Cross-Validation of a Recently Published Equation Predicting Energy Expenditure to Run or Walk a Mile in Normal-Weight and Overweight Adults

    Science.gov (United States)

    Morris, Cody E.; Owens, Scott G.; Waddell, Dwight E.; Bass, Martha A.; Bentley, John P.; Loftin, Mark

    2014-01-01

    An equation published by Loftin, Waddell, Robinson, and Owens (2010) was cross-validated using ten normal-weight walkers, ten overweight walkers, and ten distance runners. Energy expenditure was measured at preferred walking (normal-weight walker and overweight walkers) or running pace (distance runners) for 5 min and corrected to a mile. Energy…

  17. Rapid Dominance: Integrating Space into Today’s Air Operations Center

    Science.gov (United States)

    2000-04-01

    satellites themselves, data-processing nodes, and user equipment, which can be neutralized through physical operations—bombs on target or...Conflict Resolution Coursebook , Col Robert C. Owen, Jan­ uary 1999, 199. 9. USSPACECOM is now responsible for planning, coordinating, and executing

  18. Turbulent Convection in an Anelastic Rotating Sphere: A Model for the Circulation on the Giant Planets

    Science.gov (United States)

    2008-06-01

    Raffaele Ferrari, Adam Showman, Dick Lindzen, Baylor Fox-Keiper, Jonathan Lilly, Tapio Schneider, Carl Wunsch and Bill Hubbard. Particularly I thank Jean...Cuzzi, J., Pollack, J. B.. Danielson, G. E., Ingersoll, A., Davies, M. E., Hunt, G. E., Morrison, D., Owen, T.. Sagan , C., Veverka, J., Strom, R

  19. Continuous Lake-Sediment Records of Glaciation in the Sierra Nevada between 52,600 and 12,500 14C yr B.P

    Science.gov (United States)

    Benson, Larry V.; May, Howard M.; Antweiler, Ronald C.; Brinton, Terry I.; Kashgarian, Michaele; Smoot, Joseph P.; Lund, Steve P.

    1998-09-01

    The chemistry of the carbonate-free clay-size fraction of Owens Lake sediments supports the use of total organic carbon and magnetic susceptibility as indicators of stadial-interstadial oscillations. Owens Lake records of total organic carbon, magnetic susceptibility, and chemical composition of the carbonate-free, clay-size fraction indicate that Tioga glaciation began ˜24,500 and ended by ˜13,600 14C yr B.P. Many of the components of glacial rock flour (e.g., TiO 2, MnO, BaO) found in Owens Lake sediments achieved maximum values during the Tioga glaciation when valley glaciers reached their greatest extent. Total organic carbon and SiO 2(amorphous) concentrations reached minimum values during Tioga glaciation, resulting from decreases in productivity that accompanied the introduction of rock flour into the surface waters of Owens Lake. At least 20 stadial-interstadial oscillations occurred in the Sierra Nevada between 52,600 and 14,000 14C yr B.P. Total organic carbon data from a Pyramid Lake sediment core also indicate oscillations in glacier activity between >39,500 and ˜13,600 14C yr B.P. Alpine glacier oscillations occurred on a frequency of ≤1900 yr in both basins, suggesting that millennial-scale oscillations occurred in California and Nevada during most of the past 52,600 yr.

  20. Trends in woody vegetation cover in the Kruger National Park, South Africa, between 1940 and 1998

    CSIR Research Space (South Africa)

    Eckhardt, HC

    2000-06-01

    Full Text Available in savanna parks. J. Grassl. Soc. Sthern. Afr. 7, 81–85. OWEN-SMITH, R.N. (1988) Megaherbivores: the Influence of Very Large Body Size on Ecology. Cambridge University Press, Cambridge. PELLEW, R.A.P. (1983) The impacts of elephant, giraffe and fire...

  1. Effect of dietary vitamin D3 supplementation on meat quality of ...

    African Journals Online (AJOL)

    student

    Karges K, Brooks JC, Gill DR, Breazile JE, Owens FN and Morgan JB. (2001). Effect of ... Vitamin D3 and papaya leaf on meat quality of spent laying hens. Agric. J. 6(4): 197-200 ... Edn. SAS Institute, Inc., North Caroline, USA. Savell JW, Smith ...

  2. 78 FR 16792 - Designation of Areas for Air Quality Planning Purposes; State of California; Imperial Valley...

    Science.gov (United States)

    2013-03-19

    ... (see, e.g., the PM 10 area designations in 40 CFR 81.305 for Coso Junction planning area, Owens Valley..., this action: Is not ``significant regulatory actions'' subject to review by the Office of Management..., 1999); Is not economically significant regulatory actions based on health or safety risks subject to...

  3. Financial security

    NARCIS (Netherlands)

    de Goede, M.; Burgess, J.P.

    2010-01-01

    1. Introduction J. Peter Burgess Part 1: New Security Concepts 2. Civilizational Security Brett Bowden 3. Risk Oliver Kessler 4. Small Arms Keith Krause 5. Critical Human Security Taylor Owen 6. Critical Geopolitics Simon Dalby Part 2: New Security Subjects 7. Biopolitics Michael Dillon 8. Gendered

  4. A creepy-crawly food revolution | CRDI - Centre de recherches pour ...

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

    28 mars 2017 ... Adult black soldier flies on a plant at the International Centre of Insect Physiology and Ecology in Nairobi, Kenya. Brian Owens, Canadian Geographic. Long considered pests, insects are now on the menu for farmed fish and poultry in Kenya and Uganda, where scientists are looking for cheaper, healthier ...

  5. Proceedings of the Annual Meeting of the Association for Education in Journalism and Mass Communication (85th, Miami, Florida, August 5-8, 2002). Minorities and Communication Division.

    Science.gov (United States)

    2002

    The Minorities and Communication Division of the proceedings contains the following 7 papers: "The Race Card and Ethical Reasoning: The Importance of Race to Journalistic Decision Making" (Renita Coleman); "Jesse Owens, A Black Pearl Amidst an Ocean of Fury: A Case Study of Press Coverage on The 1936 Berlin Olympic Games"…

  6. An assessment of the physico-chemical parameters of Kontagora ...

    African Journals Online (AJOL)

    Dissolved oxygen by modified Winkler-azide method, water hardness by Lind method and Phosphate – phosphorus by Denges method, total alkalinity by titration method, total dissolved solid by O'wen method, while Nitrate-Nitrogen was determined using Phenoldisulphonic acid method. Water depth was determined using ...

  7. 77 FR 58528 - Performance Review Board (PRB)

    Science.gov (United States)

    2012-09-21

    .... Frederick W. Steckler, Chief Administrative Officer, United States Patent and Trademark Office. Margaret A..., Commissioner for Trademarks, United States Patent and Trademark Office. Anthony P. Scardino, Chief Financial Officer, United States Patent and Trademark Office. John B. Owens II, Chief Information Officer, United...

  8. 76 FR 64076 - Performance Review Board (PRB)

    Science.gov (United States)

    2011-10-17

    ..., Chief Financial Officer, United States Patent and Trademark Office. John B. Owens II, Chief Information Officer, United States Patent and Trademark Office. Bernard J. Knight Jr., General Counsel, United States... Trademark Office. Patricia M. Richter, Chief Administrative Officer, United States Patent and Trademark...

  9. 75 FR 63147 - Performance Review Board (PRB)

    Science.gov (United States)

    2010-10-14

    .... Patricia M. Richter, Chief Administrative Officer, United States Patent and Trademark Office. Robert L..., Commissioner for Trademarks, United States Patent and Trademark Office. Anthony P. Scardino, Chief Financial Officer, United States Patent and Trademark Office. John B. Owens II, Chief Information Officer, United...

  10. 78 FR 59658 - Performance Review Board

    Science.gov (United States)

    2013-09-27

    ... for Trademarks, United States Patent and Trademark Office Anthony P. Scardino, Chief Financial Officer, United States Patent and Trademark Office John B. Owens II, Chief Information Officer, United States.... Steckler, Vice Chair, Chief Administrative Officer, United States Patent and Trademark Office Margaret A...

  11. Visual Accommodation, the Mandelbaum Effect, and Apparent Size.

    Science.gov (United States)

    1979-11-01

    ametropias are referred to as the anomalo i myoplas. (Leibowitz & Owens, 1975a). Tha QnK £oa. The laser optometer is particularly effective for investigating...the emmetropic observer. The situational ametropias could be considered anomalies, rejecting by fiat the possibility tnat they are a manifestation of an

  12. In Praise of Progress

    Science.gov (United States)

    ... singer Randy Owen, formerly lead singer of the band Alabama, (with his wife Kelly). Photo courtesy of NIH NIH Director Elias Zerhouni, M.D., comments at the awards dinner focused on the vital role medical research plays in improving health care for all ...

  13. The Future of U.S. Landpower: Special Operations Versatility, Marine Corps Utility

    Science.gov (United States)

    2013-01-01

    forces-to-face- al-shabaab-lra-.html>. 72 Flynn. 73 Owens. 74 Sustaining U.S. Global Leadership, 3. 75 Jackie Calmes, “Obama and Gillard Expand U.S.-Australia Military Ties,” The New York Times, November 16, 2011.

  14. Military and Veterans Disability System. Pilot Has Achieved Some Goals, but Further Planning and Monitoring Needed

    Science.gov (United States)

    2010-12-01

    Member Subcommittee on Defense Committee on Appropriations House of Representatives The Honorable Chet Edwards Chairman The Honorable Zach Wamp...and Vanessa Taylor provided assistance with research methodology and data analysis. Bonnie Anderson, Rebecca Beale, Mark Bird, Brenda Farrell...Valerie Melvin, Patricia Owens, and Randall Williamson provided subject matter expertise. Susan Bernstein and Kathleen van Gelder provided writing

  15. Operationalizing RRI: Relational Quality Assessment & Management Model for Research and Innovation Networks (REQUANET)

    Energy Technology Data Exchange (ETDEWEB)

    Barrenechea, J.; Ibarra, A

    2016-07-01

    The current European framework for research and innovation, Horizon 2020, is articulated through the Responsible Research and Innovation (RRI) approach, promoting new dynamics of science and society (Owen et al., 2012) that require guidance of scientific production and public policy with a focus on developing multi-agent, transdisciplinary, mission-oriented solutions for local and global challenges. (Author)

  16. Vulnerability Analysis of the MAVLink Protocol for Command and Control of Unmanned Aircraft

    Science.gov (United States)

    2013-03-27

    Patton, Nikos Karapanos, Lorenz Meier, Peter Schwabe, Andrew Tridgell, Michael Oborne, Dr. Gareth Owen, and Capt Matthew Vincie, all of whom greatly...Frew and T. Brown . Networking Issues For Small Unmanned Aircraft Systems. In Unmanned Aircraft Systems : International Symposium on Unmanned Aerial

  17. 40 CFR 52.570 - Identification of plan.

    Science.gov (United States)

    2010-07-01

    ... information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov... conditions 16 through 23 and Attachment A 11/15/94 3/18/99, 64 FR 13348 Owens-Brockway Glass Container, Inc... nonattainment area State submittal date/effective date EPA approval date 1. High Occupancy Vehicle (HOV) lane on...

  18. Mater. sci. Bull, Vol. 1, No. 1, May 1979, pp. 35-41, Printed

    Indian Academy of Sciences (India)

    The conventional Owens-Corning-fibreglass technology for manufacturing glass fibres uses bushings made of platinum-rhodium alloys (Lowenstein 1973). In the technique developed at IIT, Kanpur, ceramic bushings made of either pure alumina or stabilised zirconia are used for producing continuous glass fibres.

  19. Responsibility and Culpability in Apologies: Distinctive Uses of "Sorry" versus "I'm Sorry" in Apologizing

    Science.gov (United States)

    Fatigante, Marilena; Biassoni, Federica; Marazzini, Francesca; Diadori, Pierangela

    2016-01-01

    People identify apologies as unique types of actions as compared with kin-related moves, which remedy troubles or offenses, such as excuses and justifications (Goffman, 1971; Owen, 1983; Olshtain & Cohen, 1983; Sbisa, 1999). A feature of these apologies is the speaker's acknowledgment of personal responsibility for having caused trouble or…

  20. 77 FR 62433 - Hazard Communication Standard; Approval of Information Collection Requirements

    Science.gov (United States)

    2012-10-15

    ... safety data sheets (SDSs). The final standard harmonizes the U.S. system with international norms and as.... ACTION: Final rule; notice of the Office of Management and Budget's (OMB) approval of information... FURTHER INFORMATION CONTACT: Theda Kenney or Todd Owen, Directorate of Standards and Guidance, OSHA, U.S...

  1. Raising Critical Issues in the Analysis of Gender and Science in Children's Literature

    Science.gov (United States)

    Martin, Sonya N.; Siry, Christina A.

    2009-01-01

    Trevor Owens' paper provides a critique of the role of gender and authority in selected children's books that presented biographies of Albert Einstein and Marie Curie. In the context of discussing Trevor's (2009) article about children's literature, this forum explores issues related to the (a) representation and construction of gender, science,…

  2. The Role of Developmental Levels in Examining the Effect of Subject Types on the Production of Auxiliary "Is" in Young English-Speaking Children

    Science.gov (United States)

    Guo, Ling-Yu; Van Horne, Amanda J. Owen; Tomblin, J. Bruce

    2011-01-01

    Purpose: Prior work (Guo, Owen, & Tomblin, 2010) has shown that at the group level, auxiliary "is" production by young English-speaking children was symmetrical across lexical noun and pronominal subjects. Individual data did not uniformly reflect these patterns. On the basis of the framework of the gradual morphosyntactic learning (GML)…

  3. 1531-IJBCS-Article-Petemagnan Jean Marie

    African Journals Online (AJOL)

    hp

    state anaerobic digestion of Korean food wastes. Bioressource Technology, 22: 245-253. Chynoweth DP, Owens JM, Legrand R. 2001. Renewable methane from anaerobic digestion of biomass. Renewable Energy,. 22: 1-8. Duncker LC, Matsebe GN, Moilwa N. 2007. The social/cultural acceptability of using human excreta ...

  4. Linking the Leadership Identity Development Model to Collegiate Recreation and Athletics.

    Science.gov (United States)

    Hall, Stacey L

    2015-01-01

    The Leadership Identity Development (LID) Model (Komives, Owen, Longerbeam, Mainella, & Osteen, 2005) provides a stage leadership development model for college students that can be applied to collegiate recreation student staff, volunteers, participants, and varsity student-athletes. This chapter provides guidance to implement the model in these settings and to create environments that support development. © 2015 Wiley Periodicals, Inc., A Wiley Company.

  5. First-Year Student Perceptions Related to Leadership Awareness and Influences

    Science.gov (United States)

    Shehane, Melissa R.; Sturtevant, Kathryn A.; Moore, Lori L.; Dooley, Kim E.

    2012-01-01

    This study sought to explore first-year college student perceptions related to when they first became aware of leadership and perceived influences on leadership. The study was rooted in the Leadership Identity Development Model (Komives, Owen, Longerbeam, Mainella, & Osteen, 2005). Five purposively selected individuals completing the first…

  6. A Leadership Identity Development Model: Applications from a Grounded Theory

    Science.gov (United States)

    Komives, Susan R.; Mainella, Felicia C.; Longerbeam, Susan D.; Osteen, Laura; Owen, Julie E.

    2006-01-01

    This article describes a stage-based model of leadership identity development (LID) that resulted from a grounded theory study on developing a leadership identity (Komives, Owen, Longerbeam, Mainella, & Osteen, 2005). The LID model expands on the leadership identity stages, integrates the categories of the grounded theory into the LID model, and…

  7. Author Details

    African Journals Online (AJOL)

    Owen, R. Vol 19, No 1 (2007) - Articles Ultrasound study of the asymptomatic shoulder in patients with a confirmed rotator cuff tear in the opposite shoulder. Abstract PDF. ISSN: 2078-516X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

  8. Speech to Text: Today and Tomorrow. Proceedings of a Conference at Gallaudet University (Washington, D.C., September, 1988). GRI Monograh Series B, No. 2.

    Science.gov (United States)

    Harkins, Judith E., Ed.; Virvan, Barbara M., Ed.

    The conference proceedings contains 23 papers on telephone relay service, real-time captioning, and automatic speech recognition, and a glossary. The keynote address, by Representative Major R. Owens, examines current issues in federal legislation. Other papers have the following titles and authors: "Telephone Relay Service: Rationale and…

  9. Aspects of the biology of the African lungfish, Protopterus annectens ...

    African Journals Online (AJOL)

    Aspects of the biology of the African lungfish, Protopterus annectens (Owen, 1839) from Orashi and Sombreiro Rivers in Rivers State, Nigeria were investigated using routine biological approaches. Samples were collected between October 2012 and September 2013. The analysis of the stomach content showed that the ...

  10. 76 FR 30027 - Land Disposal Restrictions: Site-Specific Treatment Variance for Hazardous Selenium-Bearing Waste...

    Science.gov (United States)

    2011-05-24

    ... Restrictions: Site-Specific Treatment Variance for Hazardous Selenium-Bearing Waste Treated by U.S. Ecology... treatment of a hazardous waste generated by the Owens-Brockway Glass Container Company in Vernon, California... action. List of Subjects in 40 CFR Part 268 Environmental protection, Hazardous waste, and Variances...

  11. Training Needs in Gerontology. Hearings, Special Committee on Aging, United States Senate. Part 2.

    Science.gov (United States)

    Congress of the U.S., Washington, DC. Senate Special Committee on Aging.

    At the second day of hearings on training needs in gerontology the witnesses were Stephen Kurzman accompanied by Arthur S. Flemming, John Lapp, Gerald D. LaVeck; George Maddox; Elias Cohen; Wilma Donahue; Brin Hawkins with Lettie Graves and Yolanda Owens; and John B. Martin. (MS)

  12. supporting strategic dogs –a scottish pipe band in the south african ...

    African Journals Online (AJOL)

    Andre Van der Bijl

    In addition, ideas generated from reading Fairclough‟s later publication34 and a variety of other ... general public41 include fiction,42 documentary publications43 and ... Peter Badcock‟s Images of war differs from works by Owen or Sassoon.

  13. Assessment of diagnostic technology in health care: rationale, methods, problems, and directions

    National Research Council Canada - National Science Library

    Sox, Harold C

    1989-01-01

    ... Rationale, Methods, Problems, and Directions Harold Sox, Susan Stern, Douglas Owens, and Herbert L. Abrams Institute of Medicine NATIONAL ACADEMY PRESS WASHINGTON, D.C. 1989 Copyrightthe cannot be not from book, paper however, version for formatting, original authoritative the typesetting-specific the as from created publication files XML from...

  14. 75 FR 28655 - Rexam Closure Systems, Inc. a Subsidiary of Rexam PLC Including On-Site Leased Workers From...

    Science.gov (United States)

    2010-05-21

    ... Hamlet, NC; Amended Certification Regarding Eligibility To Apply for Worker Adjustment Assistance In..., applicable to the workers of Rexam Closure Systems, Inc., a subsidiary of Rexam PLC, Hamlet, North Carolina... paid through Owens Illinois Manufacturing, Hamlet, North Carolina, who became totally or partially...

  15. Short Communications

    African Journals Online (AJOL)

    amounts of carbohydrates (McDonald, Edwards & Green- halgh, 1973; Morrison, 1950 and Van der Merwe, 1970) and by a slower and more uniform rate of ammonia-N release into the ruminal fluid (Owens, Lusby, Mizwicki & Forero,. 1980) which will also reduce the susceptibility of animals to. NH3 poisoning. Preliminary ...

  16. Bayesian item selection criteria for adaptive testing

    NARCIS (Netherlands)

    van der Linden, Willem J.

    1996-01-01

    R.J. Owen (1975) proposed an approximate empirical Bayes procedure for item selection in adaptive testing. The procedure replaces the true posterior by a normal approximation with closed-form expressions for its first two moments. This approximation was necessary to minimize the computational

  17. Real-Time Target Motion Animation for Missile Warning System Testing

    Science.gov (United States)

    2006-04-01

    T. Perkins, R. Sundberg, J. Cordell, Z. Tun , and M. Owen, Real-time Target Motion Animation for Missile Warning System Testing, Proc. SPIE Vol 6208...Z39-18 Real-time target motion animation for missile warning system testing Timothy Perkins*a, Robert Sundberga, John Cordellb, Zaw Tunb, Mark

  18. Author Details

    African Journals Online (AJOL)

    Owen, E. Vol 39, No 1 (2006) - Articles Memory and food intake in sheep: Effects of previous exposure to straw on intake and behaviour later in life. Abstract. ISSN: 0855-0042. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

  19. Indo-Pacific Journal of Phenomenology - Vol 13, No 2 (2013)

    African Journals Online (AJOL)

    Using Mindfulness as a Teaching Aid for Phenomenology · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. IR Owen. http://dx.doi.org/10.2989/IPJP.2013.13.2.4.1178A ...

  20. Browse Title Index

    African Journals Online (AJOL)

    Issue, Title. Vol 13, No 2 (2013), Using Mindfulness as a Teaching Aid for Phenomenology, Abstract PDF. IR Owen. Vol 8, No 1 (2008), Were Nietzsche's Cardinal Ideas – Delusions? Abstract PDF. Eva M Cybulska. Vol 12, No 1 (2012), What did you learn in school today? Abstract PDF. Carina Henriksson. Vol 5, No 1 (2005) ...

  1. Self-field effects in window-type Josephson tunnel junctions

    DEFF Research Database (Denmark)

    Monaco, Roberto; Koshelets, Valery P; Mukhortova, Anna

    2013-01-01

    The properties of Josephson devices are strongly affected by geometrical effects such as those associated with the magnetic field induced by the bias current. The generally adopted analysis of Owen and Scalapino (1967 Phys. Rev. 164, 538) for the critical current, Ic, of an in-line Josephson tunnel...

  2. Creating the Grateful School in Four Phases

    Science.gov (United States)

    Griffith, Owen M.

    2018-01-01

    Author and educator Owen Griffith shares how leaders can infuse small acts of gratitude to energize their schools and create a positive, thriving culture. Leaders must begin by practicing gratitude personally, then slowly introducing the practice to their faculty and eventually students. With the right attitude and creativity, the acts of…

  3. Players and Thinkers and Learners

    Science.gov (United States)

    Frye, Jonathan

    2012-01-01

    The stronghold that games have on our society has made it imperative that educators understand the impact that video games can have. Owens (2012) presented two frames for how the press discussed the popular game "Spore," which incorporates elements of science topics. One frame suggested that the game teaches children about intelligent design,…

  4. Job Security, Technical Innovation and Productivity

    Science.gov (United States)

    Peters, E. Bruce

    1978-01-01

    Analyzes both the management practices of Robert Owen during the early 1800's and current examples of management practices to provide insight into the questions of what bars adoption of better technology and what is the key to greater organizational flexibility and productivity; concludes that ensuring job security at the management level would…

  5. Early Initial Antibiotics and Debridement Independently Reduce Infection in an Open Fracture Model

    Science.gov (United States)

    2012-01-01

    Mittheilung von Thier-Versuchen uber die Auskeimungs-zeit von Infectionserregern in frishen Wun- den. In: Langenbeck B, ed. Archiv fur klinische Chirurgie...Berlin: Verlag von August Hirschwald, 1898:288–311 (in German). 10. Owen-Smith MS, Matheson JM. Successful prophylaxis of gas gangrene of the high

  6. Water-removed spectra increase the retrieval accuracy when estimating savanna grass nitrogen and phosphorus concentrations

    CSIR Research Space (South Africa)

    Ramoelo, Abel

    2011-01-01

    Full Text Available . Ritchie and H. H. T. Prins (2002). Global enviromental controls of diversity of large hervivores. Nature 415: 901-904. 26 Owen-Smith, N. and S. M. Cooper (1987). Palatabilty of woody plants to browsing ruminants in a South African savanna. In...

  7. Abrupt onsets capture attention independent of top-down control settings 11: Additivity is no evidence for filtering

    NARCIS (Netherlands)

    Schreij, D.; Theeuwes, J.; Olivers, C.N.L.

    2010-01-01

    Is attentional capture contingent on top-down control settings or involuntarily driven by salient stimuli? Supporting the stimulus-driven attentional capture view, Schreij, Owens, and Theeuwes (2008) found that an onset distractor caused a response delay, in spite of participants' having adopted an

  8. West European and East Asian Perspectives on Defense, Deterrence and Strategy. Volume 1. Main Report.

    Science.gov (United States)

    1984-05-16

    this School -- especially in the SDP under David Owen’s leadership -- in raising the nuclear threshold in Europe by strengthening conventional...ConrolDEPARTMENT OF DEFENSE CONTRACTORS US European Commnand ATTN: ECJ-3 Grumman-CTEC. Inc ATTM: ECJ-5 ATTN: S. Shrier us National Military

  9. The Chicago Landscape of Career and Technical Education. Feature on Research and Leadership. Vol. 2, No. 1

    Science.gov (United States)

    Owens, Devean R.; Welton, Anjalé D.

    2016-01-01

    In this brief, Owens and Welton provide an introductory overview of career and technical education (CTE) programs in both Chicago Public Schools (CPS) and the City Colleges of Chicago (CCC). They report that the State of Illinois, and the City of Chicago in particular, have some of the highest unemployment rates in the country for youth ages 16 to…

  10. Drones on the delta | CRDI - Centre de recherches pour le ...

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

    25 nov. 2016 ... Waves wash ashore at Fuvemeh, a town in Ghana's Volta River delta that's threatened by coastal erosion and flooding. Brian Owens, Canadian Geographic. Ghana's Volta River delta is an area vulnerable to climate change, with rising seas and increasingly powerful storms driving flooding and erosion, ...

  11. The Effect Of Salinity Stress On Buccal Ventilatory Rate In The ...

    African Journals Online (AJOL)

    The Effect Of Salinity Stress On Buccal Ventilatory Rate In The African Lungfish, Protopterus annectens Owen. AI Okafor, LO Chukwu, LO Chukwu. Abstract. No Abstract. Animal Research International Vol. 2 (1) 2005 pp. 252-254. Full Text: EMAIL FULL TEXT EMAIL FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL ...

  12. Equilibrium study on the reactions of boric acid with some cis-diaqua ...

    Indian Academy of Sciences (India)

    Unknown

    borate complexes ... of this group of ligands with trivalent metal ions.1,4 The present paper describes the results of a systematic equilibrium ..... Harned H S and Owen B B 1958 Physical chemistry of electrolytic solution (New York: Reinhold). 11.

  13. Snakes or Ladders? An Examination of the Experiences of Two Teacher Leaders Returning to Classroom Teaching

    Science.gov (United States)

    Munroe, Elizabeth

    2014-01-01

    Teachers who have held leadership roles at the school, district, or provincial level have the potential to contribute to student and school success when they return to classroom teaching. The contrasting experiences of two teacher leaders who returned voluntarily to classroom teaching are analyzed using Owens's (2004) social constructivist theory…

  14. How Early Child Care Affects Later Development. Science Briefs

    Science.gov (United States)

    National Scientific Council on the Developing Child, 2007

    2007-01-01

    "Science Briefs" summarize the findings and implications of a recent study in basic science or clinical research. This brief reports on the study "Are there Long-Term Effects of Early Child Care?" (J. Belsky, D. L. Vandell, M. Burchinal, K. A. Clarke-Stewart, K. McCartney, M. T. Owen, M. T., and The NICHD Early Child Care Research Network).…

  15. School/Business Partnerships: We Expanded the Idea into a Mutual-Benefit Plan.

    Science.gov (United States)

    Cameron, S. L.

    1987-01-01

    Describes a "mutual benefit" arrangement that expanded the school-business partnership model. Westfall Secondary School and an industrial operation in Owen Sound Ontario, Canada, linked their strengths and needs to offer students actual work and project experiences and to give the company useful information, services, and adult basic…

  16. 3-D contextual Bayesian classifiers

    DEFF Research Database (Denmark)

    Larsen, Rasmus

    In this paper we will consider extensions of a series of Bayesian 2-D contextual classification pocedures proposed by Owen (1984) Hjort & Mohn (1984) and Welch & Salter (1971) and Haslett (1985) to 3 spatial dimensions. It is evident that compared to classical pixelwise classification further...

  17. A 3-D Contextual Classifier

    DEFF Research Database (Denmark)

    Larsen, Rasmus

    1997-01-01

    In this paper we will consider an extension of the Bayesian 2-D contextual class ification routine developed by Owen, Hjort \\$\\backslash\\$& Mohn to 3 spatial dimensions. It is evident that compared to classical pixelwise classification further information can be obtained by tak ing into account...

  18. On the equation - Δu+c=Keu

    International Nuclear Information System (INIS)

    Duong Minh Duc.

    1989-10-01

    We establish the Sobolev inequality for limiting case. Using this result, the method of McOwen, the Ekeland variational principle and our generalized critical values results, we study the existence of solutions of the equation - Δu+c=Ke u for the case in which K and c may not tend to zero as x tends to infinity. (author). 25 refs

  19. Tracking the India-Arabia Transform Plate Boundary during Paleogene Times.

    Science.gov (United States)

    Rodriguez, M.; Huchon, P.; Chamot-Rooke, N. R. A.; Fournier, M.; Delescluse, M.

    2014-12-01

    The Zagros and Himalaya mountain belts are the most prominent reliefs built by continental collision. They respectively result from Arabia and India collision with Eurasia. Convergence motions at mountain belts induced most of plate reorganization events in the Indian Ocean during the Cenozoic. Although critical for paleogeographic reconstructions, the way relative motion between Arabia and India was accommodated prior to the formation of the Sheba ridge in the Gulf of Aden remains poorly understood. The India-Arabia plate-boundary belongs to the category of long-lived (~90-Ma) oceanic transform faults, thus providing a good case study to investigate the role of major kinematic events over the structural evolution of a long-lived transform system. A seismic dataset crossing the Owen Fracture Zone, the Owen Basin, and the Oman Margin was acquired to track the past locations of the India-Arabia plate boundary. We highlight the composite age of the Owen Basin basement, made of Paleocene oceanic crust drilled on its eastern part, and composed of pre-Maastrichtian continental crust overlaid by Early Paleocene ophiolites on its western side. A major transform fault system crossing the Owen Basin juxtaposed these two slivers of lithosphere of different ages, and controlled the uplift of marginal ridges along the Oman Margin. This transform system deactivated ~40 Ma ago, coeval with the onset of ultra-slow spreading at the Carlsberg Ridge. The transform boundary then jumped to the edge of the present-day Owen Ridge during the Late Eocene-Oligocene period, before seafloor spreading began at the Sheba Ridge. This migration of the plate boundary involved the transfer of a part of the Indian oceanic lithosphere accreted at the Carlsberg Ridge to the Arabian plate. The episode of plate transfer at the India-Arabia plate boundary during the Late Eocene-Oligocene interval is synchronous with a global plate reorganization event corresponding to geological events at the Zagros and

  20. Service Quality and Non-Muslim Satisfaction Using Sharia Bank Products and Services

    Directory of Open Access Journals (Sweden)

    Nova Ch Mamuaya

    2018-01-01

    Full Text Available Some studies show that religious belief does not take effect affecting consumer using sharia bank products and services. This research has implemented six dimensions of Othman and Owen which modified five dimensions of Parasuraman with adding compliance dimension. The six dimensions of Othman & Owen are known as CARTER (compliance, assurance, reliability, tangible, empathy, and responsiveness. The research purpose is to analyze compliance, assurance, reliability, tangible, empathy, and responsiveness effect on non-Muslim customer satisfaction on sharia bank products and services at Manado Sulawesi Utara partially or simultaneously. The data was gathered with questionnaire instruments of 70 respondents, measured with five Likert scale five dots. The research result shows compliance, assurance, reliability, tangible, empathy, and responsiveness has significant effect on customer satisfaction. Responsive has most strong effect and compliance is the weakest.

  1. Distribution and Characterization of Antigens Found in Subcellular Fractions of African Trypanosomes.

    Science.gov (United States)

    1979-08-01

    34 • . . .. . -. 11. (i.e., Trypanosoma cruzi, Pereira et al 1978; Entamoeba histolytica, McLaughlin and Muller in preparation...Partial purification and some properties of a neutral sulfhydryl and an acid proteinase from Entamoeba histolytica. Can. J. Microbiol. 23 420-425...in membrane fragments isolated from Acanthamoeba sp . Biochem. Biophys. Acta 193 203-211. Voorheis, H.P. Gale, J.S., Owen, M.J. and Edwards W. (1979

  2. On the Stiction of MEMS Materials

    DEFF Research Database (Denmark)

    Zhuang, Yanxin; Menon, Aric Kumaran

    2005-01-01

    energies and stiction of commonly used MEMS materials by contact angle measurements and atomic force microscopy (AFM). Dispersive and polar components of surface energies are calculated by Owens-Wendt-Rabel-Kaelble method. Silicon and silicon-related materials have higher polar surface energies than SU-8...... been shown that the materials with higher surface energy have higher sticton/adhesion forces. The topography of surface influences the contact angle and stiction, and is also discussed in the paper....

  3. Higher-Order and Symbolic Computation

    DEFF Research Database (Denmark)

    Danvy, Olivier; Mason, Ian

    2008-01-01

    a series of implementaions that properly account for multiple invocations of the derivative-taking opeatro. In "Adapting Functional Programs to Higher-Order Logic," Scott Owens and Konrad Slind present a variety of examples of terminiation proofs of functional programs written in HOL proof systems. Since......-calculus programs, historically. The anaylsis determines the possible locations of ambients and mirrors the temporla sequencing of actions in the structure of types....

  4. Development of Cognitive Bias Modification (CBM) Tools to Promote Adjustment during Reintegration following Deployment

    Science.gov (United States)

    2017-06-01

    a meta-analysis. Child development 73 (3), 916-934. Owen, J.M., 2011. Transdiagnostic cognitive processes in high trait anger. Clinical Psychology ...Award Number: W81XWH-13-2-0001 TITLE: : Development of Cognitive Bias Modification (CBM) Tools to Promote Adjustment during Reintegration...DATES COVERED 15-OCT-2012 TO 14-OCT-2016 4. TITLE AND SUBTITLE Development of Cognitive Bias Modification (CBM) Tools to Promote Adjustment during

  5. Permeation Studies of CW Agents with Fabric Treated with 8-Hydroxyquinoline

    Science.gov (United States)

    2017-12-01

    Jeffery R. Owens AIR FORCE CIVIL ENGINEER CENTER AFCEC/CXAE, Tyndall AFB, FL 32403-5320 December 2017 Approved for public release: distribution...P.O. Box 68, Gunpowder, MD 21010-0068 Universal Technology Corp.; 139 Barnes Drive Suite 2 Tyndall AFB, FL 32404-5325 Air Force Civil Engineer ...moisture transport. The garment prevents exposure to outside chemical weapons agents (CWAs) by reacting or reducing permeation of the CWA. By

  6. Women in History--Madame C. J. Walker 1867-1919

    Science.gov (United States)

    Huber, Germaine W.

    2009-01-01

    This article profiles Madame C. J. Walker. Sarah Breedlove was born on December 23, 1867, the fifth of six children of Owen and Minerva Breedlove. Sarah was the first of the Breedlove children to be born after the end of slavery. Her parents died when she was six or seven years of age. At age fourteen she married Moses McWilliams, who also died in…

  7. Dark Web 101

    Science.gov (United States)

    2016-07-21

    important to you, to listening to your favorite music on- line. Because encryption is essential in protecting the authenticity of personal information...technological trends . Darknet tactics vary making it hard to identify darknet users or data hosts. For example, Dr. Gareth Owen, University of...When you do a simple Web search on a topic, the results that pop up aren’t the whole story. The Internet contains a vast trove of information

  8. Multi-Phase Combustion and Transport Processes Under the Influence of Acoustic Excitation

    Science.gov (United States)

    2014-01-01

    waveguide. Alcohol fuels (ethanol and methonal) as well as aviation fuel replacements ( Fischer -Tropsch (FT) synfuel and an FT blend with JP-8) were studied...replacements ( Fischer -Tropsch (FT) synfuel and an FT blend with JP-8) were studied here. During acoustic excitation, the flame surrounding the droplet was...Wegener is approved. Chris R. Anderson Jeff D. Eldredge Ivett A. Leyva Owen I. Smith Ann R. Karagozian, Committee Chair University of California, Los

  9. The imperative of culture: a quantitative analysis of the impact of culture on workforce engagement, patient experience, physician engagement, value-based purchasing, and turnover

    OpenAIRE

    Owens, Katie; Eggers, Jim; Keller, Stephanie; McDonald, Audrey

    2017-01-01

    Katie Owens,1 Jim Eggers,2 Stephanie Keller,1 Audrey McDonald1 1HealthStream Engagement Institute, Pensacola, FL, 2Analytics, HealthStream, Laurel, MD, USA Abstract: Current uncertainty for the future of the health care landscape is placing an increasing amount of pressure on leadership teams to be prepared to steer their organization forward in a number of potential directions. It is commonly recognized among health care leaders that culture will either enable or disable organizational succe...

  10. An Alternative Perspective to “the Owenite Movement” Window to Sustainable Cities: “Neighbourhood Cooperatives”

    OpenAIRE

    I. Bakir Kanli

    2016-01-01

    The struggle for sustaining existence and environment of humans is as old as humanity. Capitalism has accelerated problems relating to sustainability. Many scholars have endeavoured to address these problems by purposing an alternative social order. Robert Owen is one of these scholars. He shares that the clues for reaching sustainable communities could be achieved by advocating a cooperative-oriented life style. Even though his idea of villages of cooperation became an intellectual phenomeno...

  11. Who's who on the Board

    International Nuclear Information System (INIS)

    Anon.

    1988-01-01

    Brief summaries of the curriculum vitae and present positions held by each member of the National Radiological Protection Board are given. The members are Sir Richard Southwood, Mr. A.M. Allen, Professor A. Barret, Professor J.H. Edwards, Professor H.J. Evans, Professor K.J. Evans, Professor P. Haggett, Professor J.R. Lee, Professor J.S. Orr, Dr. R. Owen, Professor J. Peto, Dr. D.H. Roberts and Mr. M.E. Trowbridge. (U.K.)

  12. AFRICOM: Does Location Matter?

    Science.gov (United States)

    2009-03-01

    Decision Model,” 242-244. 26 Susan Hesse Owen & Mark S. Daskin , “Strategic Facility Location: A Review,” European Journal of Operational Research...Susan Hesse & Mark S. Daskin . “Strategic Facility Location: A Review,” European Journal of Operational Research 111 (1998), 423-447. Paye-Layeleh...ES) N/ A 10. SPONSORING/MONITORING AGENCY REPORT NUMBER 11. SUPPLEMENTARY NOTES The views expressed in this thesis are those of the author and

  13. Charles Robert Darwin and Alfred Russel Wallace: their dispute over the units of selection.

    Science.gov (United States)

    Ruse, Michael

    2013-12-01

    Charles Darwin and Alfred Russel Wallace independently discovered the mechanism of natural selection for evolutionary change. However, they viewed the working of selection differently. For Darwin, selection was always focused on the benefit for the individual. For Wallace, selection was as much something of benefit for the group as for the individual. This difference is traced to their different background political-economic views, with Darwin in favor of Adam Smith's view of society and Wallace following Robert Owen in being a socialist.

  14. 150 Years of Coulomb Stress History Along the California-Nevada Border, USA.

    Science.gov (United States)

    Carena, S.; Verdecchia, A.

    2014-12-01

    The temporal and spatial correlation among earthquakes in diffuse plate boundary zones is not well understood yet. The region north of the Garlock fault between the Sierra Nevada and Death Valley is part of a diffuse plate boundary zone, which absorbs a significant fraction of the plate motion between Pacific and North America. This area has experienced at least eight Mw ≥ 6 earthquakes in historical times, beginning with the 1872 Mw 7.5 Owens Valley earthquake. Furthermore, since 1978 Long Valley caldera has been undergoing periods of unrest, with earthquake swarms and resurgence. Our goal is to determine whether the 1872 Owens Valley earthquake has influenced the seismicity and volcanic activity in the area. We model the evolution of coseismic, interseismic and postseismic Coulomb stress (ΔCFS) in the region due to both earthquakes and caldera activity in the last 150 years. Our results show that the 1872 Owens Valley earthquake strongly encourages faulting in northern Owens Valley. In addition, there is a correlation among smaller events, in the form of a west-to-east migration of earthquakes from Long Valley caldera toward the White Mountains immediately following the 1978 caldera inflation event. The last event in this sequence, the 1986 Mw 6.3 Chalfant Valley earthquake, controls the location of over 80% of its own aftershocks, which occur in areas of positive ΔCFS and reach Mw 5.7. We also calculate the cumulative ΔCFS on several major active faults in the region. Stresses up to 30 bars and 10 bars respectively have accumulated on the White Mountains (Central section) and Deep Springs faults, comparable to the expected stress drop in an average earthquake. Because no surface ruptures more recent than 1.8 ka have been identified on these faults [dePolo, 1989; Lee et al., 2001], we consider them as likely candidates for the next major earthquake in the region.

  15. A Model for the Ordering and Distribution of the Influenza Vaccine

    Science.gov (United States)

    2006-06-01

    virus. The three types of human influenza viruses are H1N1, H1N2 , and H3N2. Influenza type A viruses are constantly changing and this requires...ORDERING AND DISTRIBUTION OF THE INFLUENZA VACCINE by James Richard Gurr June 2006 Thesis Advisor: Walter Owen Second Reader: Moshe...Ordering and Distribution of the Influenza Vaccine 6. AUTHOR(S) James Richard Gurr 5. FUNDING NUMBERS 7. PERFORMING ORGANIZATION NAME(S) AND

  16. Special Operations Forces Language and Culture Needs Assessment: Immersion Training

    Science.gov (United States)

    2010-11-01

    in TL Listen in TL Train or teach other in TL Conduct business negotiations in TL Use TL to maintain control Use TL to persuade people Use informal... teach what you’re going to do, you do a practical exercise where they’re integrating, the person’s integrating what you just taught them in a...1990). Investigating fluency in EFL : A quantitative approach. Language Learning, 3, 387– 417. Owens, W. (2010). Improving cultural education of Special

  17. Gas-charged sediments on the inner continental shelf off western India

    Digital Repository Service at National Institute of Oceanography (India)

    Karisiddaiah, S.M.; Veerayya, M.; Vora, K.H.; Wagle, B.G.

    the enormous reserves of methane hydrates in the Arctic (Nisbet, 1989) and elsewhere. Owens et al. (1991) observed that the northern Arabian Sea is an oceanic region of unusually high methane concentrations and fluxes to the atmo- sphere. In view... The western continental shelf of India between IO°N and 22°N is bordered by the Deccan Traps (volcanic rocks) of Cretaceous age towards the north of Goa, whereas Peninsular gneisses, char- nockites and various schistose formations of Archaean age...

  18. Management strategies for fibromyalgia

    OpenAIRE

    Le Marshall KF; Littlejohn GO

    2011-01-01

    Kim Francis Le Marshall, Geoffrey Owen LittlejohnDepartments of Rheumatology and Medicine, Monash Medical Centre and Monash University, Victoria, AustraliaDate of preparation: 14 June 2011Clinical question: What are the effective, evidence-based strategies available for the management of fibromyalgia?Conclusion: There are a number of management strategies available with robust evidence to support their use in clinical practice.Definition: Fibromyalgia is a complex pain syndrome characterized ...

  19. Analytic convergence of harmonic metrics for parabolic Higgs bundles

    Science.gov (United States)

    Kim, Semin; Wilkin, Graeme

    2018-04-01

    In this paper we investigate the moduli space of parabolic Higgs bundles over a punctured Riemann surface with varying weights at the punctures. We show that the harmonic metric depends analytically on the weights and the stable Higgs bundle. This gives a Higgs bundle generalisation of a theorem of McOwen on the existence of hyperbolic cone metrics on a punctured surface within a given conformal class, and a generalisation of a theorem of Judge on the analytic parametrisation of these metrics.

  20. Solar heating system installed at Jackson, Tennessee. Final report

    Energy Technology Data Exchange (ETDEWEB)

    None

    1980-10-01

    The solar energy heating system installed at the Coca-Cola Bottling Works in Jackson, Tennessee is described. The system consists of 9480 square feet of Owens-Illinois evacuated tubular solar collectors with attached specular cylindrical reflectors and will provide space heating for the 70,000 square foot production building in the winter, and hot water for the bottle washing equipment the remainder of the year. Component specifications and engineering drawings are included. (WHK)

  1. OPAL Netlogo Land Condition Model

    Science.gov (United States)

    2014-08-15

    ER D C/ CE RL T R- 14 -1 2 Optimal Allocation of Land for Training and Non-training Uses ( OPAL ) OPAL Netlogo Land Condition Model...Fulton, Natalie Myers, Scott Tweddale, Dick Gebhart, Ryan Busby, Anne Dain-Owens, and Heidi Howard August 2014 OPAL team measuring above and...online library at http://acwc.sdp.sirsi.net/client/default. Optimal Allocation of Land for Training and Non-training Uses ( OPAL ) ERDC/CERL TR-14-12

  2. A better approach to the MDNBR concept

    International Nuclear Information System (INIS)

    Crecy, F. de.

    1993-01-01

    This paper recalls the statistical origins of the MDNBR concept and Owen's coefficients, as used in CHF studies. The way in which they are currently used may be incorrect and we shall present a better approach, in which the lower tolerance interval limit depends on parameters. Use with least-square regressions and smoothing splines is explained. We also include an example, based on a CHF EPRI test, from the Columbia University data bank. (author). 1 fig., 6 refs

  3. The origins of the birth control movement in England in the early nineteenth century.

    Science.gov (United States)

    Langer, W L

    1975-01-01

    The origins of the birth control movement in England in the 19th cen tury are discussed. The impact of Malthus's "Essay on the Principle of Population" and the activities of such thinkers and reformers as Jermy Bentham, James and John Stuart Mill, Francis Plance, Richard Carlile, Robert Dale Owen, and Charles Knowlton are discussed. The social debate that arose during the century is discussed.

  4. The Customer Metaphor and the Defense Intelligence Agency

    Science.gov (United States)

    2016-05-26

    making our two years memorable. I owe professional debts to Stephanie Goldstein , Ed Owens, and Liz Frame, who taught me what it means to be an...data-driven motivational research, which aimed to discover and exploit the psychological needs of consumers.33 Examples of ads in which fake doctors...Intelligence officers recognize this mindset as confirmation bias, and number it among the cognitive traps they must avoid. If analysts are encouraged

  5. Summary of Research 2003

    Science.gov (United States)

    2005-01-01

    2003. CHAPTERS IN BOOKS Gergen, K. and Barrett F.J., “ Social Constructionism and Distributed Learning,” A. DiStefino, K. Rudestam, R. Silverman...Complutense University in Madrid, Spain, and at the University of Hamburg in Germany. An article dealing with centrality in social networks was...APPLIED MATHEMATICS 234 Manuel, C., Gonzalez, E., Gomez, F., del Pozo, M., Owen, G., and Tejada, J., “Centrality in Social Networks: A Game

  6. Systems Engineering Analysis for Office Space Management

    Science.gov (United States)

    2017-09-01

    ENGINEERING ANALYSIS FOR OFFICE SPACE MANAGEMENT by James E. Abellana September 2017 Thesis Advisor: Diana Angelis Second Reader: Walter E. Owen...Master’s thesis 4. TITLE AND SUBTITLE SYSTEMS ENGINEERING ANALYSIS FOR OFFICE SPACE MANAGEMENT 5. FUNDING NUMBERS 6. AUTHOR(S) James E. Abellana 7...of the systems engineering method, this thesis develops a multicriteria decision-making framework applicable to space allocation decisions for

  7. Moral Geography and Exploration of the Moral Possibility Space

    OpenAIRE

    Bongrae Seok

    2017-01-01

    This article reviews Owen Flanagan’s latest book “The Geography of Morals, Varieties of Moral Possibilities” (2017). By exploring the space of moral possibility (i.e., diverse options and viewpoints of morality from different philosophical and religious traditions throughout the world), Flanagan argues that ethics is not simply a study of a priori conditions of normative rules and ideal values but a process of developing a careful understanding of varying conditions of human ecology and build...

  8. COMPETING IN THE SOCIAL BATTLESPACE: INFLUENCING THE THREE DOMAINS

    Science.gov (United States)

    2017-06-01

    war, with few one cannot. Sun Tzu There are three domains where nations, organizations, and individuals consistently maneuver, balance, or...their peers. As Sun Tzu states, it is “best to subdue his army, his state, his cities without fighting.”10 This is accomplished by competing and...University Press, USA, 1971), 79. 61 BIBLIOGRAPHY Academic Papers Cote, Owen Reid. n.d. “The Politics of Innovative Military Doctrine: The

  9. Cover page.docx

    OpenAIRE

    Gilchrist, Susan

    2016-01-01

    One of the most widely discussed aspects within the topic of sustainability seems to be that of sustainable food consumption (SFC), resulting in interest from the public, governments and the food industry (Vermeir and Verbeke, 2006; Owen, et. al., 2007; OECD, 2008; Salaue, 2010; BIO Intelligence Service, 2012 and Krystallis et. al., 2012). Former research into the areas of environmental and social aspects of sustainable consumption reach the unified conclusion that food c...

  10. Siim Nestor soovitab : Wicked Beat. President of Funk. Muuseumiööl. Springz Bashmendil / Siim Nestor

    Index Scriptorium Estoniae

    Nestor, Siim, 1974-

    2002-01-01

    16. mail toimub Emajõe äärses klubis Atlantis Eesti esimene nu-skool breaks õhtu Wicked Beat, kus peaesinejaks on DJ ja produtsent Databass (plaadifirma Freakaboom "juhatuse esimees" Justin Owen). 18. mail house-muusika pidu Tartus muusikagaleriis Damtan Dance. 17. mai ööl Rotermanni soolalaos triod: 1. Riho Sibul, Jaak Sooäär ja Raul Saaremets ning 2. Tõnis Leemets, Robert Jürjendal ja Aivar Tõnso. 17. mail Von Krahlis Dj Dr. Koit

  11. Proceedings of the Annual Acquisition Research Symposium (7th), Acquisition Research: Creating Synergy for Informed Change 12-13 May 2010. Volume 2

    Science.gov (United States)

    2010-04-30

    American University in Cairo (Egypt), and Instituto de Empresas in Madrid (Spain). He has conducted a wide range of acquisition training courses for...battle damage repair, supply and transportation support. He’s been assigned to Headquarters US Air Force in the Pentagon two times. General Owen was...from the Department of Transportation is the only search result; clearly, the outcome demonstrates that not even one tenth of one percent of the

  12. Applications of Molecular and Materials Modeling

    Science.gov (United States)

    2002-01-01

    Chimica Industriale Molecular modeling of solvation Prof. Jacopo Tomasi http://www.dcci.unipi.it/attivita /attivita.html; http://www.dcci.unipi.it...solutions/ cases/notes/scale.html BNFL Sorption of gases in zeolites Dr. Scott L. Owens http://www.bnfl.co.uk/ BAE (British Aerospace Engineering) Rare...permeation of gases ; adhesion and interfacial interactions of siloxane networks; chemical reactivity and catalysis; environmental and cosmetics

  13. Prevalence, Adverse Events, and Factors Associated with Dietary Supplement and Nutritional Supplement Use by US Navy and Marine Corps Personnel

    Science.gov (United States)

    2016-04-12

    DMDC included the service member’s name, branch of service, pay grade (rank), postal address, e-mail address, sex, age, marital status, education...resistance training but few relationships with aerobic training. The discrepancies in the literature can possibly be explained by different definitions of...dietary supplements. JAMA Int Med. 2013;173(3):355-361. 32. Owens GM. Gender differences in health care expenditures, resource utilization, and quality of

  14. At the XI International Conference on High Energy Accelerators

    CERN Multimedia

    CERN PhotoLab

    1980-01-01

    The Conference was held at CERN and attracted some 300 specialists (see CERN Courier 1980 p. 231). The conference was a success thanks also to many CERN people. Here, first raw, Susannah Tracy, Ingrid Barnett, ..?, Danièle Lajust, Simon Newman, Owen Lock. Second raw, (2) Ed Powell, (3) Ernest Bissa, (7) Myrna Guarisco, (8) Barbara Strasser, (10) Michèle Compoint, (11) Anne Caton, (12) Mike Crowley-Milling.

  15. Giles, Petrone, and Garriott Chat at Apollo 16 Display

    Science.gov (United States)

    1974-01-01

    Huntsville's Jack Giles, Alabama State Senator (left), and Dr. Rocco Petrone, Marshall Space Flight Center Director (Middle), speak with Astronaut Owen Garriott who is inside the Apollo 16 Command Module on display at the Alabama Space and Rocket Center in Huntsville, Alabama. The successful Apollo 16 manned lunar landing mission took place April 16, 1972 through April 27, 1972. (Photograph courtesy of Huntsville/Madison County Public Library)

  16. Des drones survolant le delta | IDRC - International Development ...

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

    25 nov. 2016 ... Photo prise par un drone survolant la ville de Fuvemeh. Appeaning-Addo et al. 2015. Les vagues balayant le rivage de Fuvemeh, une ville ghanéenne qui est située près du delta du fleuve Volta et que menacent les inondations et l'érosion des côtes. Par Brian Owens, Canadian Geographic. La région du ...

  17. Des drones survolant le delta | CRDI - Centre de recherches pour le ...

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

    25 nov. 2016 ... Photo prise par un drone survolant la ville de Fuvemeh. Appeaning-Addo et al. 2015. Les vagues balayant le rivage de Fuvemeh, une ville ghanéenne qui est située près du delta du fleuve Volta et que menacent les inondations et l'érosion des côtes. Par Brian Owens, Canadian Geographic. La région du ...

  18. Diet selection by Nguni goats in the Zululand Thornveld

    OpenAIRE

    Basha, N.A.D.; Scogings, P.F.; Nsahlai, I.V.

    2009-01-01

    The aim was to determine diet selection of goats grazing/browsing in Zululand Thornveld. An experiment was done in spring (November 2007) and autumn (March/April 2008) at Owen Sitole College of Agriculture, KwaZulu-Natal. Diet selection was estimated using direct observation of animals and an indirect plant-based method. The browse species observed in the plant-based methods were: Gymnosporia senegalensis (Gs), Acacia nilotica (An), Acacia karroo (Ak), Scutia myrtina (Sm) and Dichrostachys ci...

  19. Comparison of Novel Carboneous Structures to Treat Nitroaromatic Impacted Water

    Science.gov (United States)

    2015-12-01

    Perfluorinated Compounds from Groundwater using Granular Activated Carbon. University of Colorado. Li, L., Quinlivan, P. A, and Knappe, D. R. U. (2002...and Owens, G. (2009). "Kinetics and thermodynamics of sorption of nitroaromatic compounds to as-grown and oxidized multiwalled carbon nanotubes...used as adsorbents to treat water contaminated by a model nitroaromatic compound , 2,4- dinitrotoluene (DNT). The DNT adsorption capacity of pristine

  20. Untitled

    African Journals Online (AJOL)

    Ley, S.V.; Woodward, P.R. Tetrahedron Letters 1987, 28, 345. 9. Labelled reagents were bought from Aldrich Chemical Company. 10. Davidson, D.; Bernhard, S.A. J. Am. Chem. Soc. 1948, 70, 3426; Philhaja, K.; Sielo,. M. Acta Chem. Scand. 1968, 22, 3053. 11. Baig, M.V.A.; Owen, L.N. J. Chem. Soc. /C 1966, 540: Neises, ...

  1. Hi-Tek Learning Strategies

    OpenAIRE

    Victor Selman; Jerry Selman

    2011-01-01

    Unorthodox ways currently used in colleges to accelerate the velocity of learning are reviewed. To augment persuasion and articulation ability of business school students, stand-up comedy is used (University of Chicago). Song writing, storytelling and improvisation (VanderbiltUniversity-Owens Management), and for Shakespearean motivation for other management skills at the corporate execu-tive level (Northrup Grumman). Food chow-down, before and during classes, including pizza and chocolate ca...

  2. Unmanned Vanguard: Leveraging The Operational Effectiveness Of The Israeli Unmanned Aircraft System Program

    Science.gov (United States)

    2012-04-01

    The ACGS is capable of controlling multiple aircraft simultaneously similar to the USAF multiple aircraft control ( MAC ) GCS used with the MQ-1...technology offers a big improvement on workload for the pilots and allows them to focus on their mission and payloads versus flying the aircraft. Its...July 2010). 19 “Attack of the Drones,” The Economist , 3 September 2009, http://www.economist.com/node/14299496 (accessed 8 Apr 2012). 20 Owen

  3. Meediakunstnike workshop polaarjoonel / Raivo Kelomees

    Index Scriptorium Estoniae

    Kelomees, Raivo, 1960-

    1998-01-01

    Rovaniemi ülikooli ning Tornio kunsti- ja meediakolledzhi juures juulis 1998 peetud 2. rahvusvahelisest meediakunsti workshopist "Polar Circuit 2". Eestist osalesid Raivo Kelomees, Tiia Johannson. Tornio kunsti- ja meediakolledzhist. Külastatud workshopidest (juhendajad Steve Bradley, Owen Kelly, Christine Stevart, Rasa Smite ja Raitis Smits). Õppetöö tase Eesti Kunstiakadeemias jätab soovida. Ilmunud ka kogumikus "Ekraan kui membraan". Tartu, 2007, lk. 46-48

  4. Evidence of Genetic Differentiation for Hawaii Insular False Killer Whales (Pseudorca crassidens)

    Science.gov (United States)

    2010-05-01

    Casuarina NT 0811, Australia MOSTA PHD EN RA ICCI AN DA ME IC N O IS L T A R N A TOI IOT A N N U E.S C. RD EE MPA MR OT CM FENT O NOAA Technical...the American Academy of Forensic Science 1:34. Ferreira, I. M. 2008. Growth and reproduction in false killer whales (Pseudorca crassidens Owens

  5. Allocating Virtual and Physical Flows for Multiagent Teams in Mutable, Networked Environments

    Science.gov (United States)

    2012-08-01

    work with while here at CMU, including Noam Hazon, Praveen Paruchuri, Roie Zivan, Nathan Brooks, Robin Glinton, Sean Owens, Nilanjan Chakraborty, and...Multiagent Systems. 5 [47] Steven Okamoto, Praveen Paruchuri, Yonghong Wang, Katia Sycara, Janusz Marecki, and Mudhakar Srivatsa. Multiagent communication...Christopher Portway, Milind Tambe, Craig Western, Praveen Paruchuri, and Sarit Kraus. Deployed AR- MOR protection: the application of a game theoretic model

  6. Quest Hierarchy for Hyperspectral Face Recognition

    Science.gov (United States)

    2011-03-01

    Mian [63] used 2D and 3D imagery to correct for pose variation. The interesting use of this SIFT application was the implementation in a rejection...Christopher, Arun Ross, Matthew Monaco, Lawrence Hornak, Xin Li , “Multispectral Iris Analysis: A Preliminary Study,” Proceedings of the 2006 Conference on...F., A. Jensen, D. Fleet, “Local Features Tutorial,” (November 2004). [63] Mian , Ajmal, Mohammed Bennamoun, Robyn Owens, “An Efficient Multimodal

  7. The dawn of chelonian research

    OpenAIRE

    MacCord, Kate; Caniglia, Guido; Moustakas-Verho, Jacqueline; Burke, Ann

    2015-01-01

    Many evo-devo studies of the turtle's shell draw hypotheses and support from historical sources. The groundbreaking works of Cuvier, Geoffroy St. Hilaire, Carus, Rathke, Owen, and others are being revived in modern research, and their centuries-old understanding of the turtle's shell reconsidered. In the works of these eminent biologists of the 19th century, comparative anatomy and embryology of turtle morphology set the stage for future studies in developmental biology, histology, and paleon...

  8. A constitutive rheological model for agglomerating blood derived from nonequilibrium thermodynamics

    Science.gov (United States)

    Tsimouri, Ioanna Ch.; Stephanou, Pavlos S.; Mavrantzas, Vlasis G.

    2018-03-01

    Red blood cells tend to aggregate in the presence of plasma proteins, forming structures known as rouleaux. Here, we derive a constitutive rheological model for human blood which accounts for the formation and dissociation of rouleaux using the generalized bracket formulation of nonequilibrium thermodynamics. Similar to the model derived by Owens and co-workers ["A non-homogeneous constitutive model for human blood. Part 1. Model derivation and steady flow," J. Fluid Mech. 617, 327-354 (2008)] through polymer network theory, each rouleau in our model is represented as a dumbbell; the corresponding structural variable is the conformation tensor of the dumbbell. The kinetics of rouleau formation and dissociation is treated as in the work of Germann et al. ["Nonequilibrium thermodynamic modeling of the structure and rheology of concentrated wormlike micellar solutions," J. Non-Newton. Fluid Mech. 196, 51-57 (2013)] by assuming a set of reversible reactions, each characterized by a forward and a reverse rate constant. The final set of evolution equations for the microstructure of each rouleau and the expression for the stress tensor turn out to be very similar to those of Owens and co-workers. However, by explicitly considering a mechanism for the formation and breakage of rouleaux, our model further provides expressions for the aggregation and disaggregation rates appearing in the final transport equations, which in the kinetic theory-based network model of Owens were absent and had to be specified separately. Despite this, the two models are found to provide similar descriptions of experimental data on the size distribution of rouleaux.

  9. User Centered System Design. Part 2. Collected Papers from the UCSD HMI Project.

    Science.gov (United States)

    1984-03-01

    31 David Owen >CONSTRUCTIVE INTERACTION: A METHOD FOR STUDYING USER-COMPUTER-USER INTERACTION,~4 Claire O’MWaiey. Stephrn W. Drape, &mW4(fey S. Riley...improving intelligibility. __________ Display of a 1mg. musher Allows user to see a Slow to read, slow to of MCM Item: law percestage of the display, ua...Display of a saw musher Essy to red, quick to If number of alterna- of Ase im ms: display, only a small tiwes is large, multiple percentage of the sads

  10. Temperature Jump Pyrolysis Studies of RP 2 Fuel

    Science.gov (United States)

    2017-01-09

    Briefing Charts 3. DATES COVERED (From - To) 15 December 2016 – 11 January 2017 4. TITLE AND SUBTITLE Temperature Jump Pyrolysis Studies of RP-2 Fuel...Rev. 8- 98) Prescribed by ANSI Std. 239.18 1 TEMPERATURE JUMP PYROLYSIS STUDIES OF RP-2 FUEL Owen Pryor1, Steven D. Chambreau2, Ghanshyam L...17026 7 Temperature Jump Pyrolysis at AFRL Edwards Rapid heating of a metal filament at a rate of 600 – 800 K/s, and the set temperature is held for

  11. Diagnóstico y prospectiva de la administración de recursos humanos

    OpenAIRE

    Ganga Contreras, Francisco; Vera Garnica, José; Araya Moreno, Justo Eduardo

    2009-01-01

    Estamos transitando por nuevas autopistas organizacionales, donde la mundialización de la economía, el cambio permanente, la profusa tecnología disponible y la enorme importancia que se le da al conocimiento, están afectando la forma como se hacen las cosas en la empresas. La administración de personal¹ no está ajena a estas tendencias, las cuales son el resultado de una serie de etapas y aportes realizados por diversos autores y estudiosos, que van desde Owen, Babage, Taylor, Fayol y Mayo; p...

  12. A PLIOSAURID TOOTH FROM THE ARGILLE VARICOLORI FORMATION NEAR CASTELVECCHIO DI PRIGNANO (MODENA PROVINCE, NORTHERN ITALY

    Directory of Open Access Journals (Sweden)

    CESARE A. PAPAZZONI

    2003-11-01

    Full Text Available The first discovery of a Cretaceous pliosaurid tooth in Italy is reported. It comes from the Cenomanian-lower Campanian Argille Varicolori Formation near Castelvecchio di Prignano (Modena Province, northern Italy. Excepting this new specimen, Italy's only reported pliosaurid is a humerus from the Upper Cretaceous of Zavattarello near Pavia. The tooth morphology allows it to be ascribed to Polyptychodon interruptus Owen, 1841, a species only reported thus far from northern-central Europe (England, Germany, and the Czech Republic. This suggests the presence of marine reptile remains in the northern Apennines may have been underestimated. 

  13. Description of the physical environment an coal-mining history of West-Central Indiana, with emphasis on six small watersheds

    Science.gov (United States)

    Martin, Jeffrey D.; Crawford, Charles G.; Duwelius, Richard F.; Renn, Danny E.

    1990-01-01

    This report describes the physical and human environment and coal-mining history of west-central Indiana, with emphasis on six small watersheds selected for study of the hydrologic effects of surface coal mining. The report summarizes information on the geology, geomorphology, soils, climate, hydrology, water use, land use, population, and coal-mining history of Clay, Owen, Sullivan, and Vigo Counties in Indiana. Site-specific information is given on the morphology, geology, soils, land use, coal-mining history, and hydrologic instrumentation of the six watersheds, which are each less than 3 square miles in area.

  14. Multi-material Preforming of Structural Composites

    Energy Technology Data Exchange (ETDEWEB)

    Norris, Robert E. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Eberle, Cliff C. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Pastore, Christopher M. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Sudbury, Thomas Z. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Xiong, Fue [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Hartman, David [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

    2015-05-01

    Fiber-reinforced composites offer significant weight reduction potential, with glass fiber composites already widely adopted. Carbon fiber composites deliver the greatest performance benefits, but their high cost has inhibited widespread adoption. This project demonstrates that hybrid carbon-glass solutions can realize most of the benefits of carbon fiber composites at much lower cost. ORNL and Owens Corning Reinforcements along with program participants at the ORISE collaborated to demonstrate methods for produce hybrid composites along with techniques to predict performance and economic tradeoffs. These predictions were then verified in testing coupons and more complex demonstration articles.

  15. Fuel assembly

    International Nuclear Information System (INIS)

    Fujibayashi, Toru.

    1970-01-01

    Herein disclosed is a fuel assembly in which a fuel rod bundle is easily detachable by rotating a fuel rod fastener rotatably mounted to the upper surface of an upper tie-plate supporting a fuel bundle therebelow. A locking portion at the leading end of each fuel rod protrudes through the upper tie-plate and is engaged with or separated from the tie-plate by the rotation of the fastener. The removal of a desired fuel rod can therefore be remotely accomplished without the necessity of handling pawls, locking washers and nuts. (Owens, K.J.)

  16. The Polatron: A Millimeter-Wave Cosmic Microwave Background Polarimeter for the OVRO 5.5 m Telescope

    OpenAIRE

    Philhour, B. J.; Keating, B. G.; Ade, P. A. R.; Bhatia, R. S.; Bock, J. J.; Church, S. E.; Glenn, J.; Hinderks, J. R.; Hristov, V. V.; Jones, W. C.; Kamionkowski, M.; Kumar, D. E.; Lange, A. E.; Leong, J. R.; Marrone, D. P.

    2001-01-01

    We describe the development of a bolometric receiver designed to measure the arcminute-scale polarization of the cosmic microwave background (CMB). The Polatron will be mounted at the Cassegrain focus of the 5.5 m telescope at the Owens Valley Radio Observatory (OVRO). The receiver will measure both the Q and U Stokes parameters over a 20% pass-band centered near 100 GHz, with the input polarization signal modulated at ~0.6 Hz by a rotating, birefringent, quartz half-wave plate. In six months...

  17. Preparing South Africa for cyber crime and cyber defense

    CSIR Research Space (South Africa)

    Grobler, M

    2013-01-01

    Full Text Available revolution on cybercrime and cyber defense in a developing country and will evaluate the relevant South African legislation. It will also look at the influence of cyber defense on the international position of the South African Government. South Africa... legislation and a lack of cyber defense mechanisms. As a starting point, cyber warfare for the purpose of this article is defined as the use of exploits in cyber space as a way to intentionally cause harm to people, assets or economies (Owen 2008). It can...

  18. HiPer-tex{sup TM} WindStrand{sup TM}: A new generation of high performance reinforcement

    Energy Technology Data Exchange (ETDEWEB)

    Peters, L.; Adolphs, G. [Owens Corning S and T, Battice (Belgium); Bech, J.I.; Broendsted, P. [Risoe National Lab., Material Research Dept., Roskilde (Denmark)

    2006-07-01

    Owens Corning has recently introduced the HiPer-texTM family of high performance reinforcements of which WindStrandTM is engineered to specific customer process requirements of resin infusion and prepregs for Wind Turbine blades manufacture. The new HiPer-tex technology platform enables up to 35% higher strength, 17% higher modulus, better impact, corrosion and high temperature resistance and significantly better fatigue properties versus traditional E Glass laminates. These attributes have been measured with various laminates types and are presented in this paper. These better performances are needed in markets such as Wind Energy, pressure vessels, armour, aerospace and light weight structural component. (au)

  19. DEVELOPMENT OF MULTIMEDIA-BASED INSTRUCTIONAL OF NATURAL SCIENCE IN SOLAR SYSTEM MATERIAL IN THE GRADE IX FOR HEARING IMPAIRMENT STUDENTS

    Directory of Open Access Journals (Sweden)

    Nurvita Dwi Andriani

    2016-12-01

    Full Text Available Hearing impairment students have limitation in obtaining information. Hearing impairment students needs a multimedia-based instructional to visualize a subject matter as a learning experience. This study was aimed at producing a theoretically and empirically valid multimedia-based instructional of Natural Science in Solar System material which is reviewed by experts and could be implemented in Segment B of SMPLB (Hearing impairment students. This study employed a research and development (R&D model by William W. Lee and Diana L. Owens. Overall, the multimedia-based instructional of Natural Science in Solar System material for Segment B of SMPLB (Hearing impairment students was valid

  20. Records of millennial-scale climate change from the Great Basin of the Western United States

    Science.gov (United States)

    Benson, Larry

    High-resolution (decadal) records of climate change from the Owens, Mono, and Pyramid Lake basins of California and Nevada indicate that millennialscale oscillations in climate of the Great Basin occurred between 52.6 and 9.2 14C ka. Climate records from the Owens and Pyramid Lake basins indicate that most, but not all, glacier advances (stades) between 52.6 and ˜15.0 14C ka occurred during relatively dry times. During the last alpine glacial period (˜60.0 to ˜14.0 14C ka), stadial/interstadial oscillations were recorded in Owens and Pyramid Lake sediments by the negative response of phytoplankton productivity to the influx of glacially derived silicates. During glacier advances, rock flour diluted the TOC fraction of lake sediments and introduction of glacially derived suspended sediment also increased the turbidity of lake water, decreasing light penetration and photosynthetic production of organic carbon. It is not possible to correlate objectively peaks in the Owens and Pyramid Lake TOC records (interstades) with Dansgaard-Oeschger interstades in the GISP2 ice-core δ18O record given uncertainties in age control and difference in the shapes of the OL90, PLC92 and GISP2 records. In the North Atlantic region, some climate records have clearly defined variability/cyclicity with periodicities of 102 to 103 yr; these records are correlatable over several thousand km. In the Great Basin, climate proxies also have clearly defined variability with similar time constants, but the distance over which this variability can be correlated remains unknown. Globally, there may be minimal spatial scales (domains) within which climate varies coherently on centennial and millennial scales, but it is likely that the sizes of these domains vary with geographic setting and time. A more comprehensive understanding of the mechanisms of climate forcing and the physical linkages between climate forcing and system response is needed in order to predict the spatial scale(s) over which

  1. Horton Grantee gets AAG Award

    Science.gov (United States)

    Jeffrey McDonnell, an assistant professor of forest hydrology at Utah State University, Logan, received the J. Warren Nystrom Award from the Association of American Geographers for his doctoral dissertation, “The Age, Origin and Pathway of Subsurface Stormflow in a Steep Humid Headwater Catchment.” In 1987, McDonnell was awarded AGU's Horton Research Grant for his thesis proposal.McDonnell received his Ph.D. in 1989 from the University of Canterbury, Christchurch, New Zealand. His dissertation was supervised by I. F. Owens, Department of Geography, University of Canterbury and A. J. Pearce, New Zealand Forest Research Institute.

  2. Backtrack modeling to locate the origin of tar balls depositing along the west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Suneel, V.; Ciappa, A.; Vethamony, P.

    spills in the Gulf of Mexico, oil stranded in supra-tidal region approximately for three months. In such a situation, as the beach undergoes normal erosional and depositional processes, oil residues would either be buried or exposed. Some of the oil.... 36(2), April 2013, pp 179 - 194. 19. Michel, J., Owens, E. H., Zengel, S., Graham, A., Nixon, Z. Extent and degree of shoreline oiling: Deepwater Horizon oil spill, Gulf of Mexico, USA. PLoS ONE, 2013, 8(6), e65087. doi:10.1371/journal...

  3. Medicine, morality, and the market.

    Science.gov (United States)

    Owen, D

    1984-07-07

    In extracts from a lecture given at McGill University, the author describes the rise of a marketing or corporate ethos in medicine, stemming from economic constraints and the demographic pressures of aging populations in the U.S., Canada, and the United Kingdom. To counter the trend to corporate rather than public policy making in medicine, he advocates a holistic approach to health care, a revival of interest in preventive health, and encouragement of the self-help movement. Owen calls for a reorientation of medical attitudes so that traditional moral values of medicine present a "counterweight to the mechanistic, technological, cost-effectiveness of the market place."

  4. Joint Force Quarterly. Number 19, Summer 1998

    Science.gov (United States)

    1998-08-01

    with original pagina - tion and issue markings at the bottom corner of each folio. However, a ring folios8 has been added at the bottom center which...Defense University World Wide Web (http://www.ndu.edu/inss/books/books.html). 0719 Owens Pgs 11/17/98 6:16 PM Page 27 72 JFQ / Summer 1993 28 roles...World Wide Web . However, contentious issues remain in certain areas which must be resolved at service chief or CINC level. Moreover, the best hope for

  5. HF Radio Astronomy from a Small Satellite

    Science.gov (United States)

    2016-06-15

    SSC16-XI-03 HF Radio Astronomy from a Small Satellite Frank C. Robey1, Mary Knapp2, Alan J. Fenn1, Mark Silver1, Kerry Johnson1 Frank J. Lind3...frequency end of the electromagnetic spectrum (below 15 MHz) is one of the least explored windows in observational astronomy . Observations at these...pdf. [Accessed: 17-Oct-2015]. 3. G. Hallinan, “The Owens Valley LWA,” in Exascale Radio Astronomy , 2014, vol. 2. 4. C. J. Lonsdale, R. J. Cappallo

  6. Cost-Loss Analysis of Ensemble Solar Wind Forecasting: Space Weather Use of Terrestrial Weather Tools

    Science.gov (United States)

    Henley, E. M.; Pope, E. C. D.

    2017-12-01

    This commentary concerns recent work on solar wind forecasting by Owens and Riley (2017). The approach taken makes effective use of tools commonly used in terrestrial weather—notably, via use of a simple model—generation of an "ensemble" forecast, and application of a "cost-loss" analysis to the resulting probabilistic information, to explore the benefit of this forecast to users with different risk appetites. This commentary aims to highlight these useful techniques to the wider space weather audience and to briefly discuss the general context of application of terrestrial weather approaches to space weather.

  7. Science and judicial proceedings--seventy-six years on.

    Science.gov (United States)

    French, Robert

    2009-10-01

    The intersection of law and science, particularly in relation to causality and the legal concept of causation, were of considerable interest to Sir Owen Dixon. In this article, revisiting Dixon's 1933 lecture "Science and Judicial Proceedings", the Chief Justice refers to Dixon's deep interest in science and the issues to which it can give rise in legal proceedings. The 1933 lecture followed shortly after the judgment of the High Court in Australian Knitting Mills Ltd v Grant (1933) 50 CLR 387 which involved consideration of expert testimony and causal connections between product characteristics and personal injury to the consumer.

  8. Impact of freshwater influx on microzooplankton mediated food web in a tropical estuary (Cochin backwaters - India)

    Digital Repository Service at National Institute of Oceanography (India)

    Jyothibabu, R; Madhu, N.V.; Jayalakshmi, K.V.; Balachandran, K.K.; Shiyas, C.C.; Martin, G.D.; Nair, K.K.C.

    -1 Impact of fresh water influx on microzooplankton mediated food web in a tropical estuary (Cochin backwaters - India) R. Jyothibabu A, B, N.V. Madhu A, K.V. Jayalakshmi A, K. K. Balachandran A, C. A. Shiyas A, G. D. Martin A and K. K. C. Nair A A... in the northeastern Atlantic Ocean. Deep Sea Research 40, 479 ? 493. Burkill, P. H., Leaky, R. J. G., Owens, N. J. P., and Mantoura, R. F. C., 1993b. Synechococcus and its importance to the microbial food web of the northwestern Indian Ocean, In: Biogeochemical...

  9. The Bush Doctrine: The Foreign Policy of Republican Empire

    Science.gov (United States)

    2009-01-01

    Michael W. Doyle, ‘‘Kant, Liberal Legacies, and Foreign Affairs,’’ Philosophy and Public Affairs, Vol. 12, No. 3, Summer, 1983, pp. 205–235 and ‘‘Kant...Liberal Legacies, and Foreign Affairs, Part 2,’’ Philosophy and Public Affairs, Autumn, 1983, pp. 323–353, as well as Doyle, Ways of War and Peace (New...so-called libertarians and OWENS 41 George Bush, Graduation Speech at the US Air Force Academy, June 2, 2004, http:// www.whitehouse.gov/news/releases

  10. Klaasarhitektuur Berliinis / Pille Nagel

    Index Scriptorium Estoniae

    Nagel, Pille

    2004-01-01

    Helmut Jahni loodud Sony keskus (1993...2000) ja Kranzlereck (1992...2000), Potsdami platsi jaam (bürood Hilmer & Sattler und Albrecht, Modersohn & Freiesleben ja Hermann + Öttl, 1997...2000), intelligentse klaasfassaadiga Debise büroohoone (Renzo Piano koostöös Critoph Kohlbeckeriga, 1991...1997) ja GSW büroohoone (Sauerbruch Hutton Architekten, 1995...1999), topeltfassaadiga Nordrhein-Westfaleni liidumaade esindushoone (Petzinka Pink Architekten, 2000/2001), Riigipäevahoone klaaskuppel (Foster ja Partnerid, 1992...1999), klaaskatusega DZ-Pank (Frank Owen Gehry, 1996...1999)

  11. Comparing models of offensive cyber operations

    CSIR Research Space (South Africa)

    Grant, T

    2012-03-01

    Full Text Available Group Fallback only No Damballa, 2008 Crime Case studies Lone No No Owens et al, 2009 Warfare Literature Group Yes Yes Croom, 2010 Crime (APT) Case studies Group No No Dreijer, 2011 Warfare Previous models and case studies Group Yes No Van... be needed by a geographically or functionally distributed group of attackers. While some of the models describe the installation of a backdoor or an advanced persistent threat (APT), none of them describe the behaviour involved in returning to a...

  12. Design and Analysis of Composite Roadwheels for LVTP7 and M113A1

    Science.gov (United States)

    1984-08-01

    mid radius of the wheel. As this laminate turns the corner into the rim it becomes mixed with layers in the hoop direction until, at the outer...Owens Corning Fiberglas, Advanced Composites, Marketing Section, Fiberglas Tower, Toledo, OH 43659 1 ATTN: Larry Dickson Goodyear Aerospace...4 3 -« 4*4 3*4 4 kfc . 4 4 kk-4k0« O • 4 I 4 •£ *i >. 4 3 i’H)*ssK£Hire •>k fi««*004-40 k M 4 0 • ft-H 4 C -4 b 4 44

  13. “Not a man from England”: assimilating the exotic ‘other’ through performance, from Henry IV to Henry VI

    OpenAIRE

    Penlington, A.

    2010-01-01

    This essay will consider recent shifts in performance representations of England and the exotic ‘other’ in Shakespeare’s Henry IV, Henry V and Henry VI plays. By tracing the texts’ varied representations of non-English Britons and those for whom English is not their mother tongue (such as Owen Glyndwr in 1 Henry IV and Princess Catherine in Henry V), recent criticism has identified that Shakespeare’s narrative portrays the challenges of assimilating ‘otherness’ within English culture. This es...

  14. Strategic Shock: The Collapse of the Soviet Union: 1989

    Science.gov (United States)

    2010-08-01

    parce qu’elle illustre bien ce qu’est un « choc géopolitique ». Les auteurs de l’étude soutiennent que l’effondrement de l’Union soviétique a non...enfin les répercussions militaires, économiques et sociales du repli soviétique. Principaux résultats : Les auteurs de l’étude soutiennent que...Containing Fear: The Origin and Management of Ethnic Conflict.” in Michael E Brown, Owen R Cote, Sean M Lynn-Jones and Steven E Miller eds. Theories of

  15. Qualification test and analysis report: solar collectors

    Energy Technology Data Exchange (ETDEWEB)

    1978-12-01

    Test results show that the Owens-Illinois Sunpak/sup TM/ Model SEC 601 air-cooled collector meets the national standards and codes as defined in the Subsystem Performance Specification and Verification Plan of NASA/MSFC Contract NAS8-32259, dated October 28, 1976. The architectural and engineering firm of Smith, Hinchman and Grylls, Detroit, Michigan, acted in the capacity of the independent certification agency. The program calls for the development, fabrication, qualification and delivery of an air-liquid solar collector for solar heating, combined heating and cooling, and/or hot water systems.

  16. Morphotectonics of the Carlsberg Ridge between 62 degrees 20 minutes and 66 degrees 20 minutes E, northwest Indian Ocean

    Digital Repository Service at National Institute of Oceanography (India)

    KameshRaju, K.A.; Chaubey, A.K.; Amarnath, D.; Mudholkar, A.

    with dominance of tectonic extension. © 2008 Elsevier B.V. All rights reserved. 1. Introduction The Carlsberg Ridge, the northwestern limb of the Indian Ocean Ridge system, defines the plate boundary between the Indian and Somalian plates. The Owen fracture zone... of the spreading centre The Carlsberg ridge is characterised by rugged topography, steep valley walls and wide rift valley floor, all characteristics of a slow spreadingridge.Thereisonlyonefirstordersegmentcausedbyawell- defined transform fault and fracture zone along...

  17. Western Indian Ocean - A glimpse of the tectonic scenario

    Digital Repository Service at National Institute of Oceanography (India)

    Bhattacharya, G.C.; Chaubey, A.K.

    is the en echelon displacement of the NW-SE trending ridge axis by numerous NE-SW trending fracture Western Indian Ocean - A Glimpse of the Tectonic Scenario 693 Table 1. Some information from the scientific drilling campaigns in the western Indian Ocean...: Raman Seamount; P: Panikkar Seamount; W: Wadia Guyot; S: SagarKanya Seamount; SR: ShebaRidge; CR: Carlsberg Ridge; CIR: Central Indian Ridge; SWIR: Southwest Indian Ridge; RTJ: Rodrigues Triple Junction; OFZ: Owen Fracture Zone; LR: Laxmi Ridge; MR...

  18. Formación de coaliciones en los juegos cooperativos y juegos con múltiples alternativas

    OpenAIRE

    Magaña Nieto, Antonio

    1996-01-01

    El trabajo se centra en los juegos cooperativos con utilidad transferible, que son excelentes modelos matemáticos para analizar situaciones de conflicto y cooperación entre diversos agentes. Consta de dos partes.En la primera se utilizan el valor de shapley y su extensión, el valor coalicional de Owen, así como el índice de Banzhaf y su modificación por una estructura de coaliciones, para decidir cuando es ventajoso para un subconjunto de jugadores coaligarse y cuando no lo es.En la segunda s...

  19. Department of Defense Abstracts of Phase 2 Awards 1991

    Science.gov (United States)

    1991-01-01

    Rt.2, Box188 Office: NAVAIR La Honda , CA 94020 Contract #: N00019-91-C-0191 Phone: (415) 941-7260 pl: Patricia W~cner Title: New Packaging...track processor could be held very small. IRVINE TECHNOLOGY GROUP, INC. Topic#: 89-146 ID#: 33161 9 St Maxime Office WL Laguna Niguel, CA 92677...Olfice. WL/EGLIN Laguna Hills. CA 92663 Contract #: F08635-91-C-0201 Phone- (205) 837-5200 Pl: DR OWEN C HOFER Title: Munition Neutralization Laser

  20. 2000 NRL Review

    Science.gov (United States)

    2000-01-01

    extensive back files maintained as bound volumes or on microfilm; and a research reports collection of more than one million items stored in paper , micro...thousands of research reports, and NRL publications including press re- leases, journal articles, and conference papers . InfoWeb also links users to another...MHz with the Very Large Array,” Astron. J. 106, 2218-2228 (1993). 2 F.N. Owen, J.A. Eilek, and N.E. Kassim, “The Virgo Cluster and the M 87 Radio Halo

  1. Older Workers in the Market for Part-Time Employment. Appendices to PP 396.

    Science.gov (United States)

    1983-09-01

    Ehrenberg, R.G., Fringe Benefits and Overtime Behavior. Lexington, 1971. Levis, H. G., "Interes del Employeador en las Horas de Tobajo del Empleado...34 "The Employer Interest in Employees’ Hours of Work," Cuadernos de Economia , 18 (1969), pp. 38-54, summarized in Rosen, Harvey, reference below. Owen...just tangential to the g(h) function. The next question is: Which factors shift the optimum combination of h and c? C-I D * .k=* ~ .... LA A U..~..’ 4 g

  2. The Wild West Visits Mississippi: (Mis)Using the Western Myth in Lewis Nordan's The Sharpshooter Blues

    DEFF Research Database (Denmark)

    Bjerre, Thomas Ærvold

    2011-01-01

    as the relationship between myth and truth. The novel shares many similarities with the 1962 John Ford movie The Man Who Shot Liberty Valance, but ultimately they reach different conclusions. While Ford’s film, albeit its complexity, is ultimately a praise of the hegemonic values inherent in the male West, Nordan...... Fenimore Cooper, Buffalo Bill, and the countless dime novels to Owen Wister’s seminal Western The Virginian. While there are literary precursors in the South who have written about the frontier experience, Nordan, like many of his generation, was raised on television and Saturday movie matinees, and Nordan...

  3. Neuromyelitis optica (NMO) - an autoimmune disease of the central nervous system (CNS)

    DEFF Research Database (Denmark)

    Asgari, N; Owens, T; Frøkiaer, J

    2010-01-01

    Asgari N, Owens T, Frøkiaer J, Stenager E, Lillevang ST, Kyvik KO. Neuromyelitis optica (NMO) - an autoimmune disease of the central nervous system (CNS).
Acta Neurol Scand: DOI: 10.1111/j.1600-0404.2010.01416.x.
© 2010 John Wiley & Sons A/S. In the past 10 years, neuromyelitis optica (NMO) has...... or by intrathecal administration to naive mice. NMO may be characterized as a channelopathy of the central nervous system with autoimmune characteristics....

  4. Effect of mechanical milling and cold pressing on co power

    CSIR Research Space (South Africa)

    Bolokang, AS

    2012-01-01

    Full Text Available , pp. 2781?2786, 1984. [11] E. A. Owen and D. Madoc Jones, ?Effect of grain size on the crystal structure of cobalt,? Proceedings of the Physical Society B, vol. 67, no. 6, article 302, pp. 456?466, 1954. [12] A. S. Bolokang, M. J. Phasha, C.... Patriarche, E. Le Bourhis, M. M. O. Khayyat, and M. M. Chaudhri, ?Indentation-induced crystallization and phase transformation of amorphous germanium,? Journal of Applied Physics, vol. 96, no. 3, pp. 1464?1468, 2004. [23] G. J. Fan, F. Q. Guo, Z. Q. Hu, M...

  5. SMM observations of gamma-ray transients. 2: A search for gamma-ray lines between 400 and 600 keV from the Crab Nebula

    Science.gov (United States)

    Harris, Michael J.; Share, Gerald H.; Leising, Mark D.

    1994-01-01

    We have search spectra obtained by the Solar Maximum Mission Gamma-Ray Spectrometer during 1981-1988 for evidence of transient gamma-ray lines from the Crab Nebula which have been reported by previous experiments at energies 400-460 keV and 539 keV. We find no evidence for significant emission in any of these lines on time scales between aproximately 1 day and approximately 1 yr. Our 3 sigma upper limits on the transient flux during 1 d intervals are approximately equal to 2.2 x 10(exp -3) photons/sq cm/s for narrow lines at any energy, and approximately equal to 2.9 x 10(exp -3) photons/sq cm/s for the 539 keV line if it is as broad as 42 keV Full Width at Half Maximum (FWHM). We also searched our data during the approximately 5 hr period on 1981 June 6 during which Owens, Myers, & Thompson (1985) reported a strong line at 405 keV. We detected no line down to a 3 upper sigma limit of 3.3 x 10(exp -3) photons/sq cm/s in disagreement with the flux 7.2 +/- 2.1 x 10(exp -3) photos/sq cm/s measured by Owens et al.

  6. Recovery Act. Advanced Building Insulation by the CO2 Foaming Process

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Arthur [Industrial Science and Technology Network, Inc., Lancaster, PA (United States)

    2013-12-30

    In this project, ISTN proposed to develop a new "3rd" generation of insulation technology. The focus was a cost-effective foaming process that could be used to manufacture XPS and other extruded polymer foams using environmentally clean blowing agents, and ultimately achieve higher R-values than existing products while maintaining the same level of cost-efficiency. In the U.S., state-of-the-art products are primarily manufactured by two companies: Dow and Owens Corning. These products (i.e., STYROFOAM and FOAMULAR) have a starting thermal resistance of R-5.0/inch, which declines over the life of the product as the HFC blowing agents essential to high R-value exchange with air in the environment. In the existing technologies, the substitution of CO2 for HFCs as the primary foaming agent results in a much lower starting R-value, as evidenced in CO2-foamed varieties of XPS in Europe with R-4.2/inch insulation value. The major overarching achievement from this project was ISTN's development of a new process that uses CO2 as a clean blowing agent to achieve up to R-5.2/inch at the manufacturing scale, with a production cost on a per unit basis that is less than the cost of Dow and Owens Corning XPS products.

  7. The influence of bodily experience on children's language processing.

    Science.gov (United States)

    Wellsby, Michele; Pexman, Penny M

    2014-07-01

    The Body-Object Interaction (BOI) variable measures how easily a human body can physically interact with a word's referent (Siakaluk, Pexman, Aguilera, Owen, & Sears, ). A facilitory BOI effect has been observed with adults in language tasks, with faster and more accurate responses for high BOI words (e.g., mask) than for low BOI words (e.g., ship; Wellsby, Siakaluk, Owen, & Pexman, ). We examined the development of this effect in children. Fifty children (aged 6-9 years) and a group of 21 adults completed a word naming task with high and low BOI words. Younger children (aged 6-7 years) did not show a BOI effect, but older children (aged 8-9 years) showed a significant facilitory BOI effect, as did adults. Magnitude of children's BOI effect was related to age as well as reading skills. These results suggest that bodily experience (as measured by the BOI variable) begins to influence visual word recognition behavior by about 8 years of age. Copyright © 2014 Cognitive Science Society, Inc.

  8. Horace Lamb and Osborne Reynolds: Remarkable mancunians ... and their interactions

    International Nuclear Information System (INIS)

    Launder, B E

    2014-01-01

    The paper provides glimpses into the professional lives of arguably, the two outstanding fluid mechanicists of their time who were simultaneously professors at Owens College, Manchester. Their interactions with each other were sometimes amicable but, equally, sometimes testy and their views on their common professional subject differed radically. Reynolds was appointed to the Chair of Engineering in 1868 at the age of 25 against strong competition while Horace Lamb, graduating a decade after Reynolds, was appointed as the inaugural Professor of Applied Mathematics at the University of Adelaide where he stayed for nine years before being appointed to a chair at Owens College in 1885. Among their various interactions the most significant arose from Reynolds' famous 'Reynolds averaging' paper. That was sent for review by Lamb who was critical of the paper but finally recommended that a revised version be published since Reynolds had essentially invented the subject. Reynolds, in his turn, criticised Lamb's patronizing reference to engineers' approach to fluid mechanics in a draft revision of his book Hydrodynamics. Nevertheless, on Reynolds' death in 1912, it was Lamb who attended his funeral on behalf of the University and the Royal Society and who later wrote a moving, much cited obituary of him.

  9. In search of true friendship

    Directory of Open Access Journals (Sweden)

    Luciana Karine de Souza

    2008-01-01

    Full Text Available The present text proposes a discussion on the concept of true friendship. The argument is grounded mostly on Aristotle's Nicomachean Ethics, Owen Flanagan's ethics as human ecology, and on contemporary authors' works about the Greek philosopher's concept of friendship. Given that human beings flourish through 1 exercising capacities, 2 being moral, and 3 having true friendships, difficulties to establish the level of trust required by true friendships turns the search itself (for them morally valid.O presente texto propõe uma discussão sobre o conceito de amizade verdadeira. A argumentação que fundamenta o trabalho baseia-se em grande parte na Ética a Nicômaco de Aristóteles, na ética como ecologia humana de Owen Flanagan, e em autores contemporâneos sobre o conceito de amizade do filósofo grego. Considerando-se que seres humanos encontram a felicidade mediante 1 o exercício de suas capacidades, 2 ser um ente moral, e 3 ter amizades verdadeiras, as dificuldades no estabelecimento do nível de amizade requerido nas amizades verdadeiras torna a busca (por elas, por si só, algo moralmente válido.

  10. PENGEMBANGAN MEDIA BONEKA TANGAN BERBASIS DIGITAL STORYTELLING

    Directory of Open Access Journals (Sweden)

    Yunina Resmi Prananta

    2017-05-01

    Full Text Available This study was conducted based on the results of a needs analysis derived from interviews and field observations, namely that schools require the development of instructional media on Subtheme: Nation Cultural Diversity. These constraints require solutions to problems so needed instructional media to facilitate student so that effective learning. The aim of research and development is to produce a decent (valid, interesting, practical and effectively hand puppets media based DST on learning Subtheme: Nation Cultural Diversity for fourth graders of elementary school.This development used model Lee & Owens (2004. The results of the study are hand puppets media based DST decent and effective use in learning. Penelitian ini dilakukan berdasarkan hasil analisis kebutuhan yang diperoleh dari wawancara dan observasi lapangan yaitu sekolah membutuhkan pengembangan media pembelajaran pada subtema Keberagaman Budaya Bangsaku. Kendala tersebut memerlukan solusi pemecahan masalah sehingga diperlukan media pembelajaran yang dapat memudahkan siswa belajar sehingga pembelajaran berlangsung efektif. Tujuan dari penelitian dan pengembangan ini adalah menghasilkan produk media boneka tangan berbasis DST pada pembelajaran subtema Keberagaman Budaya Bangsaku untuk siswa kelas IV SD yang layak (valid, menarik, praktis dan efektif. Pengembangan produk ini menggunakan model Lee & Owens (2004. Hasil penelitian adalah media boneka tangan berbasis DST yang dikembangkan layak dan efektif digunakan dalam pembelajaran.

  11. Giant Radio Jet Coming From Wrong Kind of Galaxy

    Science.gov (United States)

    2003-01-01

    Giant jets of subatomic particles moving at nearly the speed of light have been found coming from thousands of galaxies across the Universe, but always from elliptical galaxies or galaxies in the process of merging -- until now. Using the combined power of the Hubble Space Telescope, the Very Large Array (VLA) and the 8-meter Gemini-South Telescope, astronomers have discovered a huge jet coming from a spiral galaxy similar to our own Milky Way. Radio-optical view of galaxy Combined HST and VLA image of the galaxy 0313-192. Optical HST image shows the galaxy edge-on; VLA image, shown in red, reveals giant jet of speeding particles. For more images, see this link below. CREDIT: Keel, Ledlow & Owen; STScI,NRAO/AUI/NSF, NASA "We've always thought spirals were the wrong kind of galaxy to generate these huge jets, but now we're going to have to re-think some of our ideas on what produces these jets," said William Keel, a University of Alabama astronomer who led the research team. Keel worked with Michael Ledlow of Gemini Observatory and Frazer Owen of the National Radio Astronomy Observatory. The scientists reported their findings at the American Astronomical Society's meeting in Seattle, Washington. "Further study of this galaxy may provide unique insights on just what needs to happen in a galaxy to produce these powerful jets of particles," Keel said. In addition, Owen said, "The loose-knit nature of the cluster of galaxies in which this galaxy resides may play a part in allowing this particular spiral to produce jets." Astronomers believe such jets originate at the cores of galaxies, where supermassive black holes provide the tremendous gravitational energy to accelerate particles to nearly the speed of light. Magnetic fields twisted tightly by spinning disks of material being sucked into the black hole are presumed to narrow the speeding particles into thin jets, like a nozzle on a garden hose. Both elliptical and spiral galaxies are believed to harbor supermassive

  12. Establishing consciousness in non-communicative patients: a modern-day version of the Turing test.

    Science.gov (United States)

    Stins, John F

    2009-03-01

    In a recent study of a patient in a persistent vegetative state, [Owen, A. M., Coleman, M. R., Boly, M., Davis, M. H., Laureys, S., & Pickard, J. D. (2006). Detecting awareness in the vegetative state. Science, 313, 1402] claimed that they had demonstrated the presence of consciousness in this patient. This bold conclusion was based on the isomorphy between brain activity in this patient and a set of conscious control subjects, obtained in various imagery tasks. However, establishing consciousness in unresponsive patients is fraught with methodological and conceptual difficulties. The aim of this paper is to demonstrate that the current debate surrounding consciousness in VS patients has parallels in the artificial intelligence (AI) debate as to whether machines can think. Basically, (Owen et al., 2006) used a method analogous to the Turing test to reveal the presence of consciousness, whereas their adversaries adopted a line of reasoning akin to Searle's Chinese room argument. Highlighting the correspondence between these two debates can help to clarify the issues surrounding consciousness in non-communicative agents.

  13. Pleistocene lake outburst floods and fan formation along the eastern Sierra Nevada, California: implications for the interpretation of intermontane lacustrine records

    Science.gov (United States)

    Benn, Douglas I.; Owen, Lewis A.; Finkel, Robert C.; Clemmens, Samuel

    2006-11-01

    Variations in the rock flour fraction in intermontane lacustrine sediments have the potential to provide more complete records of glacier fluctuations than moraine sequences, which are subject to erosional censoring. Construction of glacial chronologies from such records relies on the assumption that rock flour concentration is a simple function of glacier extent. However, other factors may influence the delivery of glacigenic sediments to intermontane lakes, including paraglacial adjustment of slope and fluvial systems to deglaciation, variations in precipitation and snowmelt, and lake outburst floods. We have investigated the processes and chronology of sediment transport on the Tuttle and Lone Pine alluvial fans in the eastern Sierra Nevada, California, USA, to elucidate the links between former glacier systems located upstream and the long sedimentary record from Owens Lake located downstream. Aggradation of both fans reflects sedimentation by three contrasting process regimes: (1) high magnitude, catastrophic floods, (2) fluvial or glacifluvial river systems, and (3) debris flows and other slope processes. Flood deposits are represented by multiple boulder beds exposed in section, and extensive networks of large palaeochannels and boulder deposits on both fan surfaces. Palaeohydrological analysis implies peak discharges in the order of 10 3-10 4 m 3 s -1, most probably as the result of catastrophic drainage of ice-, moraine-, and landslide-dammed lakes. Cosmogenic radionuclide surface exposure dating shows that at least three flood events are represented on each fan, at 9-13, 16-18 and 32-44 ka (Tuttle Fan); and at ˜23-32, ˜80-86 ka, and a poorly constrained older event (Lone Pine Fan). Gravels and sands exposed in both fans represent fluvial and/or glacifluvial sediment transport from the Sierra Nevada into Owens Valley, and show that river systems incised and reworked older sediment stored in the fans. We argue that millennial-scale peaks in rock flour

  14. Magnetic properties and emplacement of the Bishop tuff, California

    Science.gov (United States)

    Palmer, H.C.; MacDonald, W.D.; Gromme, C.S.; Ellwood, B.B.

    1996-01-01

    Anisotropy of magnetic susceptibility (AMS) and characteristic remanence were measured for 45 sites in the 0.76 Ma Bishop tuff, eastern California. Thirty-three sites were sampled in three stratigraphic sections, two in Owens gorge south of Long Valley caldera, and the third in the Adobe lobe north of Long Valley. The remaining 12 sites are widely distributed, but of limited stratigraphic extent. Weakly indurated, highly porous to dense, welded ash-flow tuffs were sampled. Saturation magnetization vs temperature experiments indicate two principal iron oxide phases: low Ti magnetites with 525-570 ??C Curie temperatures, and maghemite with 610??-640??C Curie temperatures. AF demagnetization spectra of isothermal remanent magnetizations are indicative of magnetite/maghemite predominantly in the multidomain to pseudo-single domain size ranges. Remeasurement of AMS after application of saturating direct fields indicates that randomly oriented single-domain grains are also present. The degree of anisotropy is only a few percent, typical of tuffs. The AMS ellipsoids are oblate with Kmin axes normal to subhorizontal foliation and Kmax axes regionally aligned with published source vents. For 12 of 16 locality means, Kmax axes plunge sourceward, confirming previous observations regarding flow sense. Topographic control on flow emplacement is indicated by the distribution of tuff deposits and by flow directions inferred from Kmax axes. Deposition east of the Benton range occurred by flow around the south end of the range and through two gaps (Benton notch and Chidago gap). Flow down Mammoth pass of the Sierra Nevada is also evident. At least some of the Adobe lobe in the northeast flowed around the west end of Glass mountain. Eastward flow directions in the upper Owens gorge and southeast directions in the lower Owens gorge are parallel to the present canyon, suggesting that the present drainage has been established along the pre-Bishop paleodrainage. Characteristic remanence

  15. Sources and contamination rate of port sediments: evidences from dimensional, mineralogical, and chemical investigations

    Science.gov (United States)

    Lucchetti, Gabriella; Cutroneo, Laura; Carbone, Cristina; Consani, Sirio; Vagge, Greta; Canepa, Giuseppe; Capello, Marco

    2017-04-01

    Ports are complex environments due to their complicated geometry (quays, channels, and piers), the presence of human activities (vessel traffic, yards, industries, and discharges), and natural factors (stream and torrent inputs, sea action, and currents). Due to the many activities that take place in a port, sediments and waters are often contaminated by different kinds of chemicals, such as hydrocarbons, dioxins, pesticides, nutrients, and metals. The contamination rate of a port basin is site specific and depends on the sources of contamination in the nearby urban system as well as the port system itself, such as city discharges and sewers, river intake, vessel traffic, factories (Taylor and Owens, 2009). Moreover, two important sources and vehicles of contaminants are: a) anthropogenic road deposited sediments derived from the runoff of the port and city area, and natural road deposited sediments derived from rivers and torrents, and b) airborne particulate matter and sediments (Taylor and Owens, 2009). The Port of Genoa is situated at the apex of the Ligurian Sea in the north western Mediterranean Sea and is characterised by the presence of several commercial activities that have contributed, over the years, and still contribute today, to the contaminant accumulation in both the water column and the bottom sediments. This port basin includes the mouth of several streams and the mouth of the Bisagno and the Polcevera Torrents, along the banks of which can be found several small towns, quarries, factories, and the suburbs of the city of Genoa, a ferry terminal, different container terminals, marinas, dry docks, the coal power plant of Genoa, and different wastewater treatment plant discharges. Starting from these considerations, we have examined the marine environment of a port from the point of view of the water mass circulation, hydrological characteristics, distribution of the sediment grain size, mineralogical characteristics, and metal concentrations of the

  16. La Icaria di Étienne Cabet: un’utopia letteraria del XIX secolo

    Directory of Open Access Journals (Sweden)

    José D’Assunção Barros

    2017-03-01

    Full Text Available This article attempts to examine the utopian literature of the nineteenth century, approaching more directly the imaginary societies devised by Étienne Cabet, in the novel titled Voyage en Icarie (1842. This more specific analysis is preceded by a brief introduction to utopian literature since the XVI century – recovering comparatively propositions of authors such as Thomas More, Campanella, Francis Bacon, Fourier, Saint-Simon, and Robert Owen –, besides a theoric discussion about the models of equality distribution, in this case considering the reflections of Norberto Bobbio and Amartya Sen on this topic. The work of Cabet is addressed in their contexts, and is justified because they concern a bridge between literature and society, since this works have aroused great interest of readers of the time and even inspired a motivation for carrying out specific utopian experiments.

  17. Coolant inlet device for nuclear reactors

    International Nuclear Information System (INIS)

    Ando, Hiroshi; Abe, Yasuhiro; Iwabuchi, Toshihiko; Yamamoto, Kenji.

    1969-01-01

    Herein disclosed is a coolant inlet device for liquid-metal cooled reactors which employs a coolant distributor serving also as a supporting means for the reactor core. The distributor is mounted within the reactor vessel so as to slide horizontally on supporting lugs, and is further slidably connected via a junction pipe to a coolant inlet conduit protruding through the floor of the vessel. The distributor is adapted to uniformly disperse the highly pressured coolant over the reactor core so as to reduce the stresses sustained by the reactor vessel as well as the supporting lugs. Moreover, the slidable nature of the distributor allows thermal shock and excessive coolant pressures to be prevented or alleviated, factors which posed major difficulties in conventional coolant inlet devices. (Owens, K. J.)

  18. Voluntary euthanasia.

    Science.gov (United States)

    Brewin, Thurstan B

    1986-05-10

    Brewin comments upon James Rachels' The End of Life (Oxford University Press; 1986) and Voluntary Euthanasia (Peter Owen; 1986), a compilation edited by A.B. Downing and B. Smoker that is an expanded version of a 1969 work by Britain's Voluntary Euthanasia Society. Rachels maintains that it is illogical to distinguish between active and passive euthanasia. In Voluntary Euthanasia, 17 contributors argue the pros and cons of the issue. The Voluntary Euthanasia Society proposes that mentally competent persons be allowed by law to request euthanasia, either when taken ill or by advance directive. Brewin says he is almost but not quite convinced by the arguments for legalized voluntary euthanasia. He is concerned about the "slippery slope," the uncertainties of prognosis and quality of life judgments, the pressures to which the terminally ill or aged might be subjected, and the potentially negative impact of euthanasia on the physician patient relationship.

  19. El Alhambresco: constitución de un modelo estético y su expresión en la tradición ornamental moderna

    OpenAIRE

    Raquejo Grado, Tonia

    1995-01-01

    dimensión estética del alhambresco o "moorish style" en el Reino Unido a través de los estudios de Owen Jones de su Plans Elevations, Sections and Details of the Alhambra (1842-45) y de su Grammar of the Ornament (1856). Anticipándose a su tiempo Jones introdujo nuevas ideas en la percepción de la forma y color que pudieron anticipar estudios de la psicología de Gestalt así como experiencias de la Bauhaus y la abstracción. Dejando una importante huella en la teoría del arte y diseño de princ...

  20. Handbook of Thermal Insulation Applications.

    Science.gov (United States)

    1983-01-01

    Wiuppuoror *tIe beamsWiefag ln~ td ~oair ilmstool beams Plate 18. Metal Building Ceilings - A 18b: Fir* hataird rathge may limit the use of foam Insulation...RFCTANGUI.AR SOL TD A = 2(WxL+LxH+HxW) B V = WxLxH H L TRAPEZOID A 2 (A + B) x H A CONE A -n xRxS+ i xR 2 B V =( /3)x R2 x H TRIANGLE A BxH A- 2 CYLI NDER H 2...FABRICATIIG RECTANGULAR HEATING AND COOLING DUCTWORK. FIBERGLAS DUCT BOARD OWENS-CORNING FIBERGLAS CORP GLASS FIBER RIGID BOARD WITH ALUMINUM 4bD FOIL VAPOR

  1. Poultry Plant Noise Control

    Science.gov (United States)

    1982-01-01

    A demonstration conducted last winter at the Tip Top Poultry Plant intended to show poultry plant managers from all over the U.S. potential solutions to the problem of plant noise. Plastic covers used over sound absorbing materials need to meet cleanability requirements, high- pressure water cleaning and other harsh maintenance procedures peculiar to the poultry processing industry. For the demonstration, Fiber Flex, Inc. manufactured and donated 750 noise panels; Owens-Corning Fiberglas Corporation donated the fiberglas cores; and the cover material was purchased from Howe and Bainbridge. The Engineering Experiment Station (EES) conducted before and after noise surveys and is evaluating the effect of noise reduction on turnover and productivity in the demonstration plant. EES plans to conduct a noise abatement workshop and update a handbook to help poultry processors with noise problems. EES study and demonstration may be applicable to other food processing plants where similar sanitary constraints exist.

  2. DOS SOCIALISMOS UTÓPICO E REVOLUCIONÁRIO À ECONOMIA SOLIDÁRIA

    Directory of Open Access Journals (Sweden)

    Miriam Hermi Zaar

    2013-01-01

    Full Text Available Gran parte de las características que atribuimos a las experiencias asociadas a la economía solidaria no son recientes, están imbuidas de conceptos desarrollados por teóricos del siglo XIX que formaron parte de corrientes filosóficas como el liberalismo, el socialismo utópico y el socialismo revolucionario. A ellas contribuyeron, por un lado, las ideas y las obras de los socialistas utópicos Saint Simon, Charles Fourrier y Robert Owen; y por otro, las teorías revolucionarias desarrolladas por Proudhon, Bakunin, Kropotkin, Marx y Lenin. Para entender este proceso elaboramos una reflexión teórica sobre los ideales que fomentaron las experiencias asociativas en este último siglo y medio, que continúan presentes en los recientes movimientos sociales que se caracterizan por la práctica de la economía solidaria.

  3. Body Composition and Basal Metabolic Rate in Women with Type 2 Diabetes Mellitus

    Directory of Open Access Journals (Sweden)

    Marina de Figueiredo Ferreira

    2014-01-01

    Full Text Available Objective. The aim of this study was to determine which of the seven selected equations used to predict basal metabolic rate most accurately estimated the measured basal metabolic rate. Methods. Twenty-eight adult women with type 2 diabetes mellitus participated in this cross-sectional study. Anthropometric and biochemical variables were measured as well as body composition (by absorptiometry dual X-ray emission and basal metabolic rate (by indirect calorimetry; basal metabolic rate was also estimated by prediction equations. Results. There was a significant difference between the measured and the estimated basal metabolic rate determined by the FAO/WHO/UNU (Pvalue<0.021 and Huang et al. (Pvalue≤0.005 equations. Conclusion. The calculations using Owen et al’s. equation were the closest to the measured basal metabolic rate.

  4. Inflammatory cytokines in the brain: does the CNS shape immune responses?

    Science.gov (United States)

    Owens, T; Renno, T; Taupin, V; Krakowski, M

    1994-12-01

    Immune responses in the central nervous system (CNS) have traditionally been regarded as representing the intrusion of an unruly, ill-behaved mob of leukocytes into the well-ordered and organized domain of thought and reason. However, results accumulated over the past few years suggest that, far from being an immunologically privileged organ, T lymphocytes may be regular and frequent visitors to the CNS, for purposes of immune surveillance. Here, Trevor Owens and colleagues propose that the brain itself can regulate or shape immune responses therein. Furthermore, given that the immune cells may be subverted to autoimmunity, they suggest that the study of inflammatory autoimmune disease in the brain may shed light on the ability of the local environment to regulate immune responses.

  5. The politics of atmospheric sciences: "nuclear winter" and global climate change.

    Science.gov (United States)

    Dörries, Matthias

    2011-01-01

    This article, by exploring the individual and collective trajectories that led to the "nuclear winter" debate, examines what originally drew scientists on both sides of the controversy to this research. Stepping back from the day-to-day action and looking at the larger cultural and political context of nuclear winter reveals sometimes surprising commonalities among actors who found themselves on opposing sides, as well as differences within the apparently coherent TTAPS group (the theory's originators: Richard P. Turco, Owen Brian Toon, Thomas P. Ackerman, James B. Pollack, and Carl Sagan). This story foreshadows that of recent research on anthropogenic climate change, which was substantially shaped during this--apparently tangential--cold war debate of the 1980s about research on the global effects of nuclear weapons.

  6. Rotary drum for a centrifugal separator

    International Nuclear Information System (INIS)

    Fukai, Tamotsu.

    1970-01-01

    Herein provided is a rotary drum designed to prevent strength reduction and eccentric weight redistribution at the joints between the drum body and the end cups therefore when materials having divergent specific gravities, strengths and Young's Modulus are employed as the construction materials for the drum body and end cups. The drum body is fabricated by combining glass, carbon boron or similar high strength fibers with a thermosetting hardenable resin. This composite material is then molded into the finished cylindrical product the ends of which are bent slightly inward to receive a rigid, high-strength, ring-shaped end fitting to be integrally joined thereto during the molding operation. Each ring is further adapted to retain an end cap by a procedure which entails lowering the temperature of the end cap and applying heat to the ring, thus joining both members tightly together by employing the differences in thermal expansion of each. (Owens, K. J.)

  7. Arbetstidsförkortning : för ökad arbetstillfredsställelse och bättre relationer.

    OpenAIRE

    Hultberg, Jenny; Klarenius, Karna; Liljekvist, Per

    2004-01-01

    Bakgrund: Redan på 1700-talet diskuterade Owen att det inte var bra att ha barn som arbetade långa arbetspass i treskift. Detta synsätt införde han på sin fabrik, vilket han fick mycket kritik för. Först 1962 väcktes tanken på 6-timmars arbetsdag i Sverige. Sedan dess har flera försök genomförts bl.a. hos Helsingborgs stads äldreomsorg, äldreomsorgen i Höganäs kommun samt Toyota Center i Mölndal. Problem: Dagens företag är relativt fokuserade på traditionella mått som t.ex. lönsamhet och prod...

  8. First Earth-based observations of Neptune's satellite Proteus

    Science.gov (United States)

    Colas, F.; Buil, C.

    1992-08-01

    Proteus (Neptune III) was discovered from Voyager Spacecraft images in 1989 (Smith, 1989). It was never observed from ground-based observatories because of its magnitude (m = 20.3) and closeness to Neptune (maximum elongation = 6 arcsec). In October 1991, we used the 2.2 m telescope at the European Southern Observatory (La Silla, Chile) to look for it. The observation success is mainly due to the use of an anti blooming CCD and to good seeing conditions (less than 1 arcsec). We give the differential positions of Proteus referred to Neptune and we compare with theoretical positions issued from Voyager's data (Owen et al., 1991). We found that the rms orbital residual was about 0.1 arcsec.

  9. MULTIWAVELENGTH EVIDENCE FOR QUASI-PERIODIC MODULATION IN THE GAMMA-RAY BLAZAR PG 1553+113

    Energy Technology Data Exchange (ETDEWEB)

    Ackermann, M.; Buehler, R. [Deutsches Elektronen Synchrotron DESY, D-15738 Zeuthen (Germany); Ajello, M. [Department of Physics and Astronomy, Clemson University, Kinard Lab of Physics, Clemson, SC 29634-0978 (United States); Albert, A.; Baldini, L.; Blandford, R. D.; Bloom, E. D.; Bottacini, E.; Caliandro, G. A. [W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, CA 94305 (United States); Atwood, W. B. [Santa Cruz Institute for Particle Physics, Department of Physics and Department of Astronomy and Astrophysics, University of California at Santa Cruz, Santa Cruz, CA 95064 (United States); Ballet, J. [Laboratoire AIM, CEA-IRFU/CNRS/Université Paris Diderot, Service d’Astrophysique, CEA Saclay, F-91191 Gif sur Yvette (France); Barbiellini, G. [Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, I-34127 Trieste (Italy); Bastieri, D.; Buson, S. [Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova (Italy); Becerra Gonzalez, J. [NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States); Bellazzini, R. [Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, I-56127 Pisa (Italy); Bissaldi, E. [Istituto Nazionale di Fisica Nucleare, Sezione di Bari, I-70126 Bari (Italy); Bonino, R. [Istituto Nazionale di Fisica Nucleare, Sezione di Torino, I-10125 Torino (Italy); Bregeon, J. [Laboratoire Univers et Particules de Montpellier, Université Montpellier, CNRS/IN2P3, Montpellier (France); Bruel, P., E-mail: David.J.Thompson@nasa.gov, E-mail: sara.cutini@asdc.asi.it, E-mail: stefano.ciprini@asdc.asi.it, E-mail: stefan@astro.su.se, E-mail: stamerra@oato.inaf.it [Laboratoire Leprince-Ringuet, École polytechnique, CNRS/IN2P3, Palaiseau (France); and others

    2015-11-10

    We report for the first time a γ-ray and multiwavelength nearly periodic oscillation in an active galactic nucleus. Using the Fermi Large Area Telescope we have discovered an apparent quasi-periodicity in the γ-ray flux (E > 100 MeV) from the GeV/TeV BL Lac object PG 1553+113. The marginal significance of the 2.18 ± 0.08 year period γ-ray cycle is strengthened by correlated oscillations observed in radio and optical fluxes, through data collected in the Owens Valley Radio Observatory, Tuorla, Katzman Automatic Imaging Telescope, and Catalina Sky Survey monitoring programs and Swift-UVOT. The optical cycle appearing in ∼10 years of data has a similar period, while the 15 GHz oscillation is less regular than seen in the other bands. Further long-term multiwavelength monitoring of this blazar may discriminate among the possible explanations for this quasi-periodicity.

  10. Some Case Studies on How Media Constructs Olympic Legends

    Directory of Open Access Journals (Sweden)

    Karl Lennartz

    2009-12-01

    Full Text Available During the entire history of the modern Olympic Games, from their renaissance in 1896, when the firsth edition had been heldin Athens and until the Olympic Games in Berlin in 1936, the present paper makes an analyse of the real facts and of thelegends created around them. The sports journal and the other publications are important factors in the distorsion of the realityand keeping the legend. From the athletes heros like Spiridon Louis, the first winner of the marathon and the myth buildaround the way of winning this race , to the story of the 100m won by Jesse Owens at 36 Olympic Games who have been heldin Berlin and the fact that Hitler refused to shake the hand of the Olympic champion, the purpose of this paper is to combat themyths developed since. The facts are substantiated by using the chronological datas, using the notes and minutes of meetings,as well using photographic means.

  11. Noh Creation of Shakespeare

    Directory of Open Access Journals (Sweden)

    Munakata Kuniyoshi

    2016-12-01

    Full Text Available This article contains select comments and reviews on Noh Hamlet and Noh Othello in English and Noh King Lear in Japanese. The scripts from these performances were arranged based on Shakespeare’s originals and directed on stage and performed in English by Kuniyoshi Munakata from the early 1980s until 2014. Also, the whole text of Munakata’s Noh Macbeth in English (Munakata himself acted as Macbeth and Lady Macbeth in one play is for the first time publicized. The writers of the comments and reviews include notable people such as John Fraser, Michael Barrett, Upton Murakami, Donald Richie, Rick Ansorg, James David Audlin, Jesper Keller, Jean-Claude Saint-Marc, Jean-Claude Baumier, Judy Kendall, Allan Owen, Yoshio ARAI, Yasumasa OKAMOTO, Tatsuhiko TAIRA, Hikaru ENDO, Kazumi YAMAGATA, Hanako ENDO, Yoshiko KAWACHI, Mari Boyd, and Daniel Gallimore.

  12. Cine-Club

    CERN Document Server

    Ciné-Club

    2012-01-01

    Projection from DVD – entrance 2 CHF for info http://cern.ch/Cineclub/ Thursday 12 July 2012 at 20:00 CERN Council Chamber The Darjeeling Limited By Wes Anderson (USA, 2007) With: Owen Wilson, Adrien Brody and Jason Schwartzmann Original version English; French subtitles; 91 minutes A year after the accidental death of their father, three drug-addicted brothers – each suffering from depression – meet for a train trip across India. Francis, the eldest, has organized it. The brothers argue, sulk, resent each other, and fight. The youngest, Jack, estranged from his girlfriend, is attracted to one of the train's attendants. Peter has left his pregnant wife at home, and he buys a venomous snake. After a few days, Francis discloses their surprising and disconcerting destination. Amid foreign surroundings, can the brothers sort out their differences? A funeral, a meditation, a hilltop ritual, and the Bengal Lancer figure in the reconciliation. * * * * * Thursday 19 J...

  13. Observatories and Telescopes of Modern Times

    Science.gov (United States)

    Leverington, David

    2016-11-01

    Preface; Part I. Optical Observatories: 1. Palomar Mountain Observatory; 2. The United States Optical Observatory; 3. From the Next Generation Telescope to Gemini and SOAR; 4. Competing primary mirror designs; 5. Active optics, adaptive optics and other technical innovations; 6. European Northern Observatory and Calar Alto; 7. European Southern Observatory; 8. Mauna Kea Observatory; 9. Australian optical observatories; 10. Mount Hopkins' Whipple Observatory and the MMT; 11. Apache Point Observatory; 12. Carnegie Southern Observatory (Las Campanas); 13. Mount Graham International Optical Observatory; 14. Modern optical interferometers; 15. Solar observatories; Part II. Radio Observatories: 16. Australian radio observatories; 17. Cambridge Mullard Radio Observatory; 18. Jodrell Bank; 19. Early radio observatories away from the Australian-British axis; 20. The American National Radio Astronomy Observatory; 21. Owens Valley and Mauna Kea; 22. Further North and Central American observatories; 23. Further European and Asian radio observatories; 24. ALMA and the South Pole; Name index; Optical observatory and telescope index; Radio observatory and telescope index; General index.

  14. Os falanstérios e a crítica da sociedade industrial: revisitando Charles Fourier

    Directory of Open Access Journals (Sweden)

    José D’Assunção Barros

    2011-09-01

    Full Text Available Este artigo busca examinar as idéias de Charles Fourier, escritor do século XIX habitualmente considerado como um “socialista utópico”. Uma introdução ao Socialismo Utópico no século XIX, incluindo comentários sobre outros socialistas utópicos como Saint-Simon e Robert Owen, prepara uma análise mais específica dos principais aspectos apresentados por Charles Fourier em seu Falanstério. Também são examinados aspectos relacionados à crítica social dirigida por Charles Fourier contra a sociedade industrial de sua época.

  15. Gideon Mantell and the Discovery of Dinosaurs

    Science.gov (United States)

    Dean, Dennis R.

    1999-01-01

    Gideon Mantell and the Discovery of Dinosaurs is a scholarly yet accessible biography--the first in a generation--of a pioneering dinosaur hunter and scholar. Gideon Mantell discovered the Iguanodon (a famous tale set right in this book) and several other dinosaur species, spent over twenty-five years restoring Iguanodon fossils, and helped establish the idea of an Age of Reptiles that ended with their extinction at the conclusion of the Mesozoic Era. He had significant interaction with such well-known figures as James Parkinson, Georges Cuvier, Charles Lyell, Roderick Murchison, Charles Darwin, and Richard Owen. Dennis Dean, a well-known scholar of geology and the Victorian era, here places Mantell's career in its cultural context, employing original research in archives throughout the world, including the previously unexamined Mantell family papers in New Zealand.

  16. Sir William Turner (1832-1916) - Lancastrian, anatomist and champion of the Victorian era.

    Science.gov (United States)

    Wessels, Quenton; Correia, Janine Carla; Taylor, Adam M

    2016-11-01

    Sir William Turner, a Lancastrian, was renowned as a scientist, anatomist and a great reformer of medical education. His students became anatomists at various international institutions, which consequently shaped the future of anatomy as a subject matter both in the United Kingdom and in South Africa. Although Turner's accomplishments have been documented, little is known about the details that determined his career path and the individuals that shaped his future. Here the authors aim to highlight some aspects of Turner's academic achievements and his personal life as well as how he crossed paths with other great minds of the Victorian era including Richard Owen, Charles Darwin, James Paget and Joseph Lister. © The Author(s) 2015.

  17. Moral Geography and Exploration of the Moral Possibility Space

    Directory of Open Access Journals (Sweden)

    Bongrae Seok

    2017-12-01

    Full Text Available This article reviews Owen Flanagan’s latest book “The Geography of Morals, Varieties of Moral Possibilities” (2017. By exploring the space of moral possibility (i.e., diverse options and viewpoints of morality from different philosophical and religious traditions throughout the world, Flanagan argues that ethics is not simply a study of a priori conditions of normative rules and ideal values but a process of developing a careful understanding of varying conditions of human ecology and building practical views on living good life. The goal of this geographical exploration of the moral possibility space is surveying different traditions of morality and finding tractable ways of human flourishing. This article, by following the chapters of his book, explains his views on moral diversity and his interdisciplinary and naturalistic approach to ethics. It also discusses interactive and dynamic ways to expand the moral possibility space.

  18. Os falanstérios e a crítica da sociedade industrial: revisitando Charles Fourier

    OpenAIRE

    José D’Assunção Barros

    2011-01-01

    Este artigo busca examinar as idéias de Charles Fourier, escritor do século XIX habitualmente considerado como um “socialista utópico”. Uma introdução ao Socialismo Utópico no século XIX, incluindo comentários sobre outros socialistas utópicos como Saint-Simon e Robert Owen, prepara uma análise mais específica dos principais aspectos apresentados por Charles Fourier em seu Falanstério. Também são examinados aspectos relacionados à crítica social dirigida por Charles Fourier contra a sociedade...

  19. Messier, Copernicus, Flamsteed: The SAF Rare-Book Collection in Paris

    Science.gov (United States)

    Pasachoff, Jay M.

    2014-01-01

    The historic books belonging to the Société Astronomique de France, founded by Camille Flammarion in 1887, are located partly in Paris and partly at the Flammarion site in Juvisy, a Paris suburb. Their holdings include first editions of Copernicus's De Revolutionibus and of Flamsteed's star atlas, as well as Messier's own copy of his 1783 and 1784 papers with his handwritten comments and additions. I will describe the fruitless search for a Bevis atlas and the circumstances that led me to inspect these treasures. I thank David Valls-Gabaud and Philippe Morel of the Société Astronomique de France for their hospitality in Paris, Jean-Claude Pecker, and Owen Gingerich for his prior work on Messier's catalogue.

  20. Case studies of slope stability radar used in coal mines

    Energy Technology Data Exchange (ETDEWEB)

    Noon, D. [GroundProbe Pty Ltd., South Brisbane, Qld. (Australia)

    2005-07-01

    This paper presents case studies about how the Slope Stability Radar (SSR) system provided adequate warning to safeguard people and equipment prior to highwall and low wall failure at two Australian coal mines. At Drayton mine, the SSR was able to provide the mine with sufficient warning to move the shovel and trucks away from the highwall, while personnel safely watched 50,000 tonnes of bulk material coming down from the wall. At Mt Owen mine, the SSR alarm allowed the mine to evacuate equipment and personnel four hours prior to a 30,000,000 tonne low wall failure. These two case studies demonstrate how the SSR system was able to continuously monitor the stability of these critical slopes, enabling greater mine productivity whilst maintaining the highest quality of safety. 2 refs., 7 figs., 1 tab.

  1. Nuclear fuel assembly

    International Nuclear Information System (INIS)

    Hayashi, Hiroshi; Watari, Yoshio; Hizahara, Hiroshi; Masuoka, Ryuzo.

    1970-01-01

    When exchanging nuclear fuel assemblies during the operation of a nuclear reactor, melting of fuel bodies, and severence of tubular claddings is halted at the time of insertion by furnishing a neutron absorbing material such as B 10 , Cd, Gd or the like at the forward end of the fuel assembly to thereby lower the power peak at the forward ends of the fuel elements to within tolerable levels and thus prevent both fuel liquification and excessive expansion. The neutron absorbing material may be attached in the form of a plate to the fuel assembly forward tie plate, or may be inserted as a pellet into the front end of the tubular cladding. (Owens, K.J.)

  2. Process for the irradiation of a film-like material

    International Nuclear Information System (INIS)

    Takimoto, Kazuo; Inoue, Takashi.

    1969-01-01

    Herein provided is a process for curing a polymerizable coating applied to a strip-like material by irradiating the film with high energy radiation. A plurality of rollers are arranged on both sides of the radiation path in a rectangular configuration such that only the underside of the film contacts the rollers as it is unwound in spiral fashion from a feed bobbin and rewound by a take-up bobbin located within the rectangle. The rollers are further positioned to feed the film in a direction perpendicular to the radiation beam path and to assure that successive levels of the strip superimposed while being inwardly wound are mutually parallel, uniformly spaced and adjusted to precisely intercept the radiation beam. Such an arrangement prevents a polymerizable liquid coating applied to the surface of the strip from contacting the rollers and allows effective repetitive irradiation of the strip as it passes through successive levels of the spiral before being rewound. (Owens, K. J.)

  3. Method of fixing a luminous powder such as tritium-3 promethium-147 in a nuclear battery for wrist watches

    International Nuclear Information System (INIS)

    Atomachi, Tadaaki; Imai, Hiroshi.

    1969-01-01

    A method of adhering and fixing a luminous powder such as tritium-3 or promethium-147 onto a small semi-conductor element for use in nuclear batteries is disclosed in which a radio isotope such as tritium-3 or promethium-147 is coated onto the surface of a fluorescent material such as ZnS-Cu, CaS, (Ca, Sr)S, (Cd, Zn)S which is then suspended in a silver plating bath. A composite of silver and the luminous powder is electro-deposited onto the semi-conductor element. The deposited layer will not easily separate from the semi-conductor and long life is assured owing to the thickness of the layer. Small dimensions are obtainable without sacrificing capacity. (Owens, K.J.)

  4. Submillimeter and millimeter observations of solar system objects

    International Nuclear Information System (INIS)

    Muhleman, D.O.

    1988-01-01

    Planetary atmospheres and satellite surfaces are observed with the three element array at Caltech's Owens Valley Radio Observatory, Caltech's submillimeter telescope on Mauna Kea and at the 12-meter telescope at Kitt Peak. Researchers are primarily interested in spectroscopy of the atmospheres of Venus, Mars and Titan and the continuum structure of Saturn Rings, Galilean satellites, Neptune and Uranus. During the last year researchers completed a supersynthesis of the Saturn system at 2.8 mm with spatial resolution of 3 arc sec. They just completed a 4-confuguration synthesis of Venus in the CO absorption line. They hope to recover the wind patterns in the altitude range from 60 to 100 km where winds have never been measured. Two important questions are being investigated: (1) how high in the Venus atmosphere do 4-day winds extend, and (2) can we produce experiment proof (or disproof) of the subsolar-to-anti-solar flow (Dickenson winds) predicted by general circulation models

  5. FIRST 'WINGED' AND X-SHAPED RADIO SOURCE CANDIDATES. II. NEW REDSHIFTS

    International Nuclear Information System (INIS)

    Cheung, C. C.; Healey, Stephen E.; Landt, Hermine; Jordan, Andres; Verdoes Kleijn, Gijs

    2009-01-01

    We report optical spectroscopic observations of X-shaped radio sources with the Hobby-Eberly Telescope and Multiple-Mirror Telescope, focused on the sample of candidates from the FIRST survey presented in a previous paper. A total of 27 redshifts were successfully obtained, 21 of which are new, including a newly identified candidate source of this type which is presented here. With these observations, the sample of candidates from the previous paper is over 50% spectroscopically identified. Two new broad emission-lined X-shaped radio sources are revealed, while no emission lines were detected in about one-third of the observed sources; a detailed study of the line properties is deferred to a future paper. Finally, to explore their relation to the Fanaroff-Riley division, the radio luminosities and host galaxy absolute magnitudes of a spectroscopically identified sample of 50 X-shaped radio galaxies are calculated to determine their placement in the Owen-Ledlow plane.

  6. Exploring the Dynamics of Superconductors by Time-Resolved Far-Infrared Spectroscopy

    International Nuclear Information System (INIS)

    Carr, G. L.; Lobo, R. P. S. M.; LaVeigne, J.; Reitze, D. H.; Tanner, D. B.

    2000-01-01

    We have examined the recombination of excess quasiparticles in superconducting Pb by time-resolved far-infrared spectroscopy using a pulsed synchrotron source. The energy gap shift calculated by Owen and Scalapino [Phys. Rev. Lett. 28, 1559 (1972)] is directly observed, as is the associated reduction in the Cooper pair density. The relaxation process involves a two-component decay; the faster (∼200 ps) is associated with the actual (effective) recombination process, while the slower (∼10 to 100ns) is due to heat transport across the film/substrate interface. The temperature dependence of the recombination process between 0.5T c and 0.85T c is in good agreement with theory

  7. Potential impact on water resources from future volcanic eruptions at Long Valley, Mono County, California, U.S.A

    International Nuclear Information System (INIS)

    Hopson, R.F.

    1991-01-01

    Earthquakes, ground deformation, and increased geothermal activity at Long Valley caldera after mid-1980 suggest the possibility of a volcanic eruption in the near future. An eruption there could have serious consequences for the City of Los Angeles, depending on the magnitude and volume of materials ejected because surface water in Mono Basin plus surface and groundwater in Owens Valley accounts for about 80% of its water supply. Eruptions of moderate to very large magnitude could impede the supply of water from this area for several days, weeks, or even years by discharging small to large volumes of volcanic ash and causing lahars. Soon after an eruption, water quality would likely be affected by the accumulation of organic debris and microorganisms in surface waters

  8. MULTIWAVELENGTH EVIDENCE FOR QUASI-PERIODIC MODULATION IN THE GAMMA-RAY BLAZAR PG 1553+113

    International Nuclear Information System (INIS)

    Ackermann, M.; Buehler, R.; Ajello, M.; Albert, A.; Baldini, L.; Blandford, R. D.; Bloom, E. D.; Bottacini, E.; Caliandro, G. A.; Atwood, W. B.; Ballet, J.; Barbiellini, G.; Bastieri, D.; Buson, S.; Becerra Gonzalez, J.; Bellazzini, R.; Bissaldi, E.; Bonino, R.; Bregeon, J.; Bruel, P.

    2015-01-01

    We report for the first time a γ-ray and multiwavelength nearly periodic oscillation in an active galactic nucleus. Using the Fermi Large Area Telescope we have discovered an apparent quasi-periodicity in the γ-ray flux (E > 100 MeV) from the GeV/TeV BL Lac object PG 1553+113. The marginal significance of the 2.18 ± 0.08 year period γ-ray cycle is strengthened by correlated oscillations observed in radio and optical fluxes, through data collected in the Owens Valley Radio Observatory, Tuorla, Katzman Automatic Imaging Telescope, and Catalina Sky Survey monitoring programs and Swift-UVOT. The optical cycle appearing in ∼10 years of data has a similar period, while the 15 GHz oscillation is less regular than seen in the other bands. Further long-term multiwavelength monitoring of this blazar may discriminate among the possible explanations for this quasi-periodicity

  9. CASA Uno GPS orbit and baseline experiments

    Science.gov (United States)

    Schutz, B. E.; Ho, C. S.; Abusali, P. A. M.; Tapley, B. D.

    1990-01-01

    CASA Uno data from sites distributed in longitude from Australia to Europe have been used to determine orbits of the GPS satellites. The characteristics of the orbits determined from double difference phase have been evaluated through comparisons of two-week solutions with one-week solutions and by comparisons of predicted and estimated orbits. Evidence of unmodeled effects is demonstrated, particularly associated with the orbit planes that experience solar eclipse. The orbit accuracy has been assessed through the repeatability of unconstrained estimated baseline vectors ranging from 245 km to 5400 km. Both the baseline repeatability and the comparison with independent space geodetic methods give results at the level of 1-2 parts in 100,000,000. In addition, the Mojave/Owens Valley (245 km) and Kokee Park/Ft. Davis (5409 km) estimates agree with VLBI and SLR to better than 1 part in 100,000,000.

  10. Process for the fabrication of a nuclear fuel

    International Nuclear Information System (INIS)

    Hirose, Yasuo.

    1970-01-01

    Herein disclosed is a process for fabricating a nuclear fuel incorporating either uranium or plutonium. A pellet-like substrate consisting of a packed powder ceramic fuel such as uranium or plutonium is prepared with the horizontal surface of the body provided with a masking. Next, after impregnating the substrate voids with a solution consisting of a fissile material or mixture of fissile material and poison, the solvent is removed by a chemical deposition process which causes the impregnated material to migrate through capillary action toward the vicinity of the fuel body surface. Sintering and pyrolysis of the deposited material and masking are subsequently carried out to yield a fuel body having adjacent to its surface an intensely concentrated layer of either fissile material or a mixture of fissile material and poison. (Owens, K.J.)

  11. The Death of Patriotism: Wilfre Owen’s Dulce et Decorum Est as an Anti-War Manifesto

    Directory of Open Access Journals (Sweden)

    A. Barış Ağır

    2013-07-01

    Full Text Available Abstract Being one of the biggest fluctuations in world history, humanity had never seen an event such World War I that so completely convulsed its existing ideals. Collapsing the existing ethos, the war soon showed its potencies in art and aesthetic. It would be unimaginable that poetry stood indifferent to the massive carnage. The poets who witnessed fighting on the front lines inscribed their experiences into their literary lives and used poetry as a medium of opposing war. They shaped their works to criticize threats directed to humanity. With these pecularities, war poetry, an important move towards modern poetry, stands for a geniune disengagement from the previous naturalistic poetry and signals a change in 20th century thinking. Among war poets, Wilfred Owen is an important figure whose works juxtapose the expected and the actual circumstances of war and his best known poem Dulce Et Decorum is probable to be read as an anti-war manifesto.

  12. Pengembangan Trainer Equalizer Grafis dan Parametris sebagai Media Pembelajaran Mata Kuliah Praktik Sistem Audio

    Directory of Open Access Journals (Sweden)

    Bekti Wulandari

    2016-01-01

    Full Text Available The objectives of this study were to determine the development process of graphic and parametric equalizer trainer media in the course of Audio System and to examine the quality of the media. The development process of the media referred to the model offered by Lee and Owens. The research procedures consisted of assessment/analysis, designing, implementation and evaluation. The results of the study showed that the percentages for the quality aspect of the media and the companion module were 4.31 and 4.42 respectively. Based on these two aspects, it was obtained the overall percentage that was equal to 4.36. Whereas from the process of the trial by the students, the percentages of the media and the companion module were 4.47 and 4.36 respectively. Thus the level of validity and feasibility of the media was categorized as very good.

  13. Investigating the Relationship between Learning Style Preferences and Teaching Collaboration Skills and Technology

    DEFF Research Database (Denmark)

    Kim, Seung L.; Sonnenwald, Diane H.

    2002-01-01

    This paper reports on an exploratory study that investigates the relationship between participants' learning style preferences and their perceptions of a professional workshop on collaboration and technology to support collaboration. The Learning Preference Scale-Students (LPSS) (Owens & Barnes...... style, and Group 2 showed a strong preference for competitive and cooperative learning styles. Group 1 rated the workshop more positively than Group 2. However, Group 2 reported a larger increase in self-efficacy compared to those in Group 1 (18.9% vs. 6.0%). Both groups provided different suggestions...... regarding the content of the workshop. Group 1 suggested adding more discussions and group exercises, whereas Group 2 suggested adding explicit theory or rules to govern behavior. These findings indicate that learning styles should be considered as a potential variable that influences learning outcomes...

  14. Comparison of LiF and FeSO4 dosimetry with cavity theory for high-energy electrons

    International Nuclear Information System (INIS)

    Fregene, A.O.

    1976-01-01

    Using FeSO 4 dosimetry in a comparative study, the response of LiF dosimeter rods 1 mm in diameter by 6 mm in length to electron beams of initial energies in the range 5 to 39 MeV was investigated. The electron beam cavity theories of T. E. Burlin, R. J. Shelling, and B. Owen (1969), P. R. Almond and K. McCray (1970), and L. H. Bragg-Gray (1937) were employed in the estimation of absorbed doses. The LiF dosimeter was found energy independent over the range of electron energies covered. Bragg-Gray's and Almond's electron beam theories confirm this finding within 2 percent. The overall experimental error in the work is within 2 percent. Burlin's electron beam theory gave values that were considerably out, especially at the lower end of the range of energy covered

  15. An approach to an analysis of the energy response of LiF-TLD to high energy electrons

    International Nuclear Information System (INIS)

    Shiragai, A.

    1977-01-01

    Responses of LiF-TLD to high energy electrons relative to 60 Co γ-rays were investigated experimentally and theoretically. The Burlin et al. theory (Burlin, T.E., Snelling, R.J., and Owen, B., 1969, in Proc.2nd Symp. on Microdosimetry, Stresa, Italy; Brussels: Commission of European Communities; p.455), its modified version by Almond and McCray (Almond, P.R., and McCray, K., 1970, Phys.Med.Biol., vol.15, 335 and 746) and the Holt et al. semi-empirical theory (Holt, J.G., Edelstein, G.R., and Clark, T.E., 1975, Phys.Med.Biol., vol.20, 559) were examined in comparison with each experiment. An approximate approach to theoretical analysis of energy response of LiF-TLD was attempted and compared with some experimental results. (author)

  16. Surface modification of tantalum pentoxide coatings deposited by magnetron sputtering and correlation with cell adhesion and proliferation in in vitro tests

    Science.gov (United States)

    Zykova, A.; Safonov, V.; Goltsev, A.; Dubrava, T.; Rossokha, I.; Donkov, N.; Yakovin, S.; Kolesnikov, D.; Goncharov, I.; Georgieva, V.

    2016-03-01

    The effect was analyzed of surface treatment by argon ions on the surface properties of tantalum pentoxide coatings deposited by reactive magnetron sputtering. The structural parameters of the as-deposited coatings were investigated by means of transmission electron microscopy, atomic force microscopy and scanning electron microscopy. X-ray diffraction profiles and X-ray photoelectron spectra were also acquired. The total surface free energy (SFE), the polar, dispersion parts and fractional polarities, were estimated by the Owens-Wendt-Rabel-Kaeble method. The adhesive and proliferative potentials of bone marrow cells were evaluated for both Ta2O5 coatings and Ta2O5 coatings deposited by simultaneous bombardment by argon ions in in vitro tests.

  17. Gregory A. Merkel Greeted By Astronauts and MSFC Personnel

    Science.gov (United States)

    1972-01-01

    Springfield, Massachusetts high school student, Gregory A. Merkel, is greeted by (left to right): Astronauts Russell L. Schweickart, and Owen K. Garriott; Marshall Space Flight Center (MSFC) Skylab Program Manager, Leland Belew; and MSFC Director of Administration and Technical Services, David Newby, during a tour of MSFC. Merkel was among 25 winners of a contest in which some 3,500 high school students proposed experiments for the following year's Skylab Mission. The nationwide scientific competition was sponsored by the National Science Teachers Association and the National Aeronautics and Space Administration (NASA). The winning students, along with their parents and sponsor teachers, visited MSFC where they met with scientists and engineers, participated in design reviews for their experiments, and toured MSFC facilities. Of the 25 students, 6 did not see their experiments conducted on Skylab because the experiments were not compatible with Skylab hardware and timelines. Of the 19 remaining, 11 experiments required the manufacture of additional equipment.

  18. Black brant from Alaska staging and wintering in Japan

    Science.gov (United States)

    Derksen, Dirk V.; Bollinger, K.S.; Ward, David H.; Sedinger, J.S.; Miyabayashi, Y.

    1996-01-01

    Black brant (Branta bernicla nigricans) nest in colonies in arctic Canada, Alaska, and Russia (Derksen and Ward 1993, Sedinger et al. 1993). Virtually the entire population stages in fall at Izembek Lagoon near the tip of the Alaska Peninsula (Bellrose 1976) before southward migration (Dau 1992) to winter habitats in British Columbia, Washington, Oregon, California, and Baja California (Subcommittee on Black Brant 1992). A small number of black brant winter in Japan, Korea, and China (Owen 1980). In Japan 3,000–5,000 brant of unknown origin stop over in fall, and a declining population (in the northern islands (Brazil 1991, Miyabayashi et al. 1994). Here, we report sightings of brant in Japan that were marked in Alaska and propose a migration route based on historical and recent observations and weather patterns.

  19. Vignette Hyperparathyroidism: Glimpse Into Its History

    Science.gov (United States)

    Dorairajan, N.; Pradeep, P.V.

    2014-01-01

    The parathyroid gland was first described by Sir Richard Owen. Ivor Sandstrom coined the term glandulae parathyroidiae. Vassale and Generali Francesco observed that tetany occurs following parathyroidectomy. Harald Salvesen firmly established the relationship of the parathyroid gland to calcium metabolism. A patient with skeletal disease and a tumor near the parathyroid gland was described by Max Askanazy in 1904. Schlagenhaufer suggested in 1915 that in an attempt to cure bone disease, solitary parathyroid enlargement, if present, should be excised. The term hyperparathyroidism (HPT) was coined by Henry Dixon and colleagues. The parathyroid surgeries on Albert J. and Charles Martell were the first experience with successful parathyroidectomy. From a grossly symptomatic disease of bones, stones, abdominal groans, and psychic moans, HPT has evolved into asymptomatic HPT. Improvements in knowledge about the pathology of parathyroid diseases, including the genetic basis of HPT, and advances in the surgical techniques have brought about changes in the management of HPT over the decades. PMID:25216416

  20. Studies on the relationship between Pitzer's equation and medium effect: the system of HCl + H2SO4 in {0.06455C2H5OH + 0.93545H2O}

    International Nuclear Information System (INIS)

    Lu Xingmei; Xu Weiguo; Chang Xiaohong; Lu Dianzhen; Yang Jiazhen

    2004-01-01

    The second ionization constant of sulfuric acid in mixed solvent, K 2 , was determined by e.m.f. of cell without liquid junction: (Pt,H 2 (101.325 kPa) vertical bar HCl(m 1 ),H 2 SO 4 (m 2 ),{ethanol(x=0.06455)+water(x=0.93545)} vertical bar AgCl-Ag))over the temperatures (278.15 to 318.15) K, where x is mole fraction. Combining Owen's definition of medium effect with Pitzer's equations, the values of combination parameters: (λ nHS +λ nCl -λ nS )+(3/2)m n (μ nnHS +μ nnCl -μ nnS ),(1/2)(ξ nHHS +ξ nHCl -ξ nHS ), that represent the interactions between ions and ethanol were obtained at 298.15 K.

  1. Geochemical constraints on the origin and volume of gas in the New Albany Shale (Devonian-Mississippian), eastern Illinois Basin

    Science.gov (United States)

    Strapoc, D.; Mastalerz, Maria; Schimmelmann, A.; Drobniak, A.; Hasenmueller, N.R.

    2010-01-01

    This study involved analyses of kerogen petrography, gas desorption, geochemistry, microporosity, and mesoporosity of the New Albany Shale (Devonian-Mississippian) in the eastern part of the Illinois Basin. Specifically, detailed core analysis from two locations, one in Owen County, Indiana, and one in Pike County, Indiana, has been conducted. The gas content in the locations studied was primarily dependent on total organic carbon content and the micropore volume of the shales. Gas origin was assessed using stable isotope geochemistry. Measured and modeled vitrinite reflectance values were compared. Depth of burial and formation water salinity dictated different dominant origins of the gas in place in the two locations studied in detail. The shallower Owen County location (415-433 m [1362-1421 ft] deep) contained significant additions of microbial methane, whereas the Pike County location (832-860 m [2730-2822 ft] deep) was characterized exclusively by thermogenic gas. Despite differences in the gas origin, the total gas in both locations was similar, reaching up to 2.1 cm3/g (66 scf/ton). Lower thermogenic gas content in the shallower location (lower maturity and higher loss of gas related to uplift and leakage via relaxed fractures) was compensated for by the additional generation of microbial methane, which was stimulated by an influx of glacial melt water, inducing brine dilution and microbial inoculation. The characteristics of the shale of the Maquoketa Group (Ordovician) in the Pike County location are briefly discussed to provide a comparison to the New Albany Shale. Copyright ??2010. The American Association of Petroleum Geologists. All rights reserved.

  2. Thermal adaptiveness of plumage color in screech owls

    Science.gov (United States)

    Mosher, James A.; Henny, Charles J.

    1976-01-01

    Clinal variation in the relative proportions of red and gray plum- age phases in Screech Owls (Otus asio) was analyzed by Owen (1963) and Marshall (1967). This variation was well known prior to Owen's work, but was misinterpreted (Baird, et al. 1874, Hasbrouck 1893, Allen 1893).]Laurel VanCamp and Charles Henny (MS) have 30 years of data on a northern Ohio Screech Owl population. They observed an over- winter decline (from about 25% to 15%) in the proportion of red phase birds in the winter of 1951-52. This decline was correlated with a severe winter of above normal snowfall and below average temperatures. They examined banding and recovery data and found overwinter survival of red and gray birds to be the same except for this one severe winter when 44% more red phase birds were lost than grays (VanCamp and Henny MS). Differential mortality was reported by Gullion and Marshall (1968) for red and gray phase Ruffed Grouse (Bonasa umbellus) where snow conditions for roosting is apparently the critical factor for grouse overwinter survival and is related to predation. Snow- roosting has not, to our knowledge, been observed in Screech Owls. VanCamp and Henny (MS) discuss the observations of Ruffed Grouse and Screech Owls and suggest that possible thermoregulatory differences between red and gray phase birds could account for differential overwinter survival.Our objective was to test for differences between color phase in oxygen uptake at several ambient temperatures. We hypothesized that oxygen uptake would be greater by red phase birds, especially at lower temperatures.

  3. Stochastic estimation of plant-available soil water under fluctuating water table depths

    Science.gov (United States)

    Or, Dani; Groeneveld, David P.

    1994-12-01

    Preservation of native valley-floor phreatophytes while pumping groundwater for export from Owens Valley, California, requires reliable predictions of plant water use. These predictions are compared with stored soil water within well field regions and serve as a basis for managing groundwater resources. Soil water measurement errors, variable recharge, unpredictable climatic conditions affecting plant water use, and modeling errors make soil water predictions uncertain and error-prone. We developed and tested a scheme based on soil water balance coupled with implementation of Kalman filtering (KF) for (1) providing physically based soil water storage predictions with prediction errors projected from the statistics of the various inputs, and (2) reducing the overall uncertainty in both estimates and predictions. The proposed KF-based scheme was tested using experimental data collected at a location on the Owens Valley floor where the water table was artificially lowered by groundwater pumping and later allowed to recover. Vegetation composition and per cent cover, climatic data, and soil water information were collected and used for developing a soil water balance. Predictions and updates of soil water storage under different types of vegetation were obtained for a period of 5 years. The main results show that: (1) the proposed predictive model provides reliable and resilient soil water estimates under a wide range of external conditions; (2) the predicted soil water storage and the error bounds provided by the model offer a realistic and rational basis for decisions such as when to curtail well field operation to ensure plant survival. The predictive model offers a practical means for accommodating simple aspects of spatial variability by considering the additional source of uncertainty as part of modeling or measurement uncertainty.

  4. Egg Parasitoids of Proconiini (Hemiptera: Cicadellidae) in Northwestern Mexico, with Description of a New Species of Gonatocerus (Hymenoptera: Mymaridae)

    Science.gov (United States)

    Triapitsyn, Serguei V.; Bernal, Julio S.

    2009-01-01

    Nine species of Mymaridae and Trichogrammatidae parasitic on eggs of Proconiini sharpshooters (Cicadellidae: Cicadellinae) were collected in northwestern Mexico in relation to neoclassical biological control efforts against glassy-winged sharpshooter, Homalodisca vitripennis (Germar), in California. Gonatocerus chula Triapitsyn and Bernal sp. n., which belongs to the ater species group of Gonatocerus Nees (Mymaridae), is described. Specimens of G. chula sp. n. were reared from eggs of the smoke-tree sharpshooter, Homalodisca liturata Ball, on jojoba [Simmondsia chinensis (Link) C. K. Schneider] leaves collected in central Sonora state, Mexico. Also given are new data on other egg parasitoids of Homalodisca spp. and Oncometopia spp. in Sinaloa and Sonora states, Mexico, including Gonatocerus atriclavus Girault, G. morrilli (Howard), and G. novifasciatus Girault, and the Trichogrammatidae Burksiella sp(p)., Ittys sp., Pseudoligosita sp., Ufens ceratus Owen, and U. principalis Owen. For the first time, a species of Ittys is recorded from eggs of Proconiini, and U. principalis from Mexico. Colonies of G. atriclavus, G. novifasciatus and Pseudoligosita sp. were successfully established in a quarantine laboratory at University of California, Riverside, on eggs of the glassy-winged sharpshooter. These three parasitoid species had never been reared under laboratory conditions. In addition, seven species of Proconiini were collected in central and northwestern Mexico: Cyrtodisca major (Signoret), Homalodisca insolita (Walker), H. liturata Ball, Oncometopia sp. cf. clarior (Walker), O. sp. cf. trilobata Melichar, O. (Similitopia) sp., and Phera centrolineata (Signoret). Oncometopia sp. cf. clarior, O. sp. cf. trilobata, and O. (Similitopia) sp. appeared to be undescribed species. PMID:19611244

  5. Regulating the 1918-19 pandemic: flu, stoicism and the Northcliffe press.

    Science.gov (United States)

    Honigsbaum, Mark

    2013-04-01

    Social historians have argued that the reason the 1918–19 ‘Spanish’ influenza left so few traces in public memory is that it was ‘overshadowed’ by the First World War, hence its historiographical characterisation as the ‘forgotten’ pandemic. This paper argues that such an approach tends to overlook the crucial role played by wartime propaganda. Instead, I put emotion words, emotives and metaphors at the heart of my analysis in an attempt to understand the interplay between propaganda and biopolitical discourses that aimed to regulate civilian responses to the pandemic. Drawing on the letters of Wilfred Owen, the diaries of the cultural historian Caroline Playne and the reporting in the Northcliffe press, I argue that the stoicism exhibited by Owen and amplified in the columns of The Times and the Daily Mail is best viewed as a performance, an emotional style that reflected the politicisation of ‘dread’ in war as an emotion with the potential to undermine civilian morale. This was especially the case during the final year of the conflict when war-weariness set in, leading to the stricter policing of negative emotions. As a protean disease that could present as alternately benign and plague-like, the Spanish flu both drew on these discourses and subverted them, disrupting medical efforts to use the dread of foreign pathogens as an instrument of biopower. The result was that, as dread increasingly became attached to influenza, it destabilised medical attempts to regulate the civilian response to the pandemic, undermining Owen’s and the Northcliffe press’s emotives of stoicism.

  6. Climate Change and Adaptation Planning on the Los Angeles Aqueduct

    Science.gov (United States)

    Roy, S. B.; Bales, R. C.; Costa-Cabral, M. C.; Chen, L.; Maurer, E. P.; Miller, N. L.; Mills, W. B.

    2009-12-01

    This study provides an assessment of the potential impacts of climate change on the Eastern Sierra Nevada snowpack and snowmelt timing, using a combination of empirical (i.e., data-based) models, and computer simulation models forced by GCM-projected 21st century climatology (IPCC 2007 AR4 projections). Precipitation from the Eastern Sierra Nevada is one of the main water sources for Los Angeles' more than 4 million people - a source whose future availability is critical to the city's growing population and large economy. Precipitation in the region falls mostly in winter and is stored in the large natural reservoir that is the snowpack. Meltwater from the Eastern Sierra is delivered to the city by the 340-mile long Los Angeles Aqueducts. The analysis is focused on the nature of the impact to the LAA water supplies over the 21st century due to potential climate change, including volume of precipitation, the mix of snowfall and rainfall, shifts in the timing of runoff, interannual variability and multi-year droughts. These impacts further affect the adequacy of seasonal and annual carryover water storage, and potentially water treatment. Most of the snow in the 10,000 km^2 Mono-Owens basins that feed the LAA occurs in a relatively narrow, 10-20 km wide, high-elevation band on the steep slopes of 20 smaller basins whose streams drain into the Owens River and thence LAA. Extending over 240 km in the north-south direction, these basins present special challenges for estimating snowpack amounts and downscaling climate-model data. In addition, there are few meteorological stations and snow measurements in the snow-producing parts of the basins to drive physically based hydrologic modeling.

  7. Variable radius cartography - History and perspectives of a new discipline

    Science.gov (United States)

    Scalera, Giancarlo

    2014-05-01

    The map that Toscanelli sent to Columbus was an unconscious application of cartography at a smaller radius than the real. The first really conscious attempts to represent the geography of Earth on globes of radius less than the current one occurred after the formulation of the concept of expanding Earth through geological time. The American chemist and geologist Richard Owen (1810-1890) in his book Key to the geology of the globe (1857) described the principles of what he himself called Anatomical Geology, with the Earth growing as a biological organism. The book contained a global paleogeographic map of the Earth that would have had a radius of about 4000 kilometers. In 1928 J.A.H. Kerkhoff (under the pseudonym Aero-dilettant) published a series of paleogeographic globes on which the modern oceans disappeared. With the same artisan methods of transfer continental outlines from a sphere to a smaller one, in 1933 O.C. Hilgenberg represented three different geological epochs, and, later, for the first time mapped paleopoles with their site-pole segments of meridian. Even today the traditional method of Hilgenberg is followed by senior researchers (Klaus Vogel, 2003) and younger geologists (James Maxlow). In England Hugh Owen applied the methods of traditional cartography to the variable radius one. His Atlas of Continental Displacement was in the 70s and 80s, for this discipline, a real milestone. While in the field of constant radius paleogeography the adherents to plate tectonics created many computer codes of automatic mapping (Bullard et al., 1965; Smith & Hallam, 1970; Scotese et al., 1979; and many others), in the variable radius field few tried to reach the same task. In 1972 in United States a first very simple attempt (but was not further developed) came from a private, R.B. Perry, followed by the still not-computerized Atlas of Owen, and both them constituted inspiration for the construction of a FORTRAN variable radius mapping code at INGV, with which it

  8. Distributed GPU Computing in GIScience

    Science.gov (United States)

    Jiang, Y.; Yang, C.; Huang, Q.; Li, J.; Sun, M.

    2013-12-01

    Geoscientists strived to discover potential principles and patterns hidden inside ever-growing Big Data for scientific discoveries. To better achieve this objective, more capable computing resources are required to process, analyze and visualize Big Data (Ferreira et al., 2003; Li et al., 2013). Current CPU-based computing techniques cannot promptly meet the computing challenges caused by increasing amount of datasets from different domains, such as social media, earth observation, environmental sensing (Li et al., 2013). Meanwhile CPU-based computing resources structured as cluster or supercomputer is costly. In the past several years with GPU-based technology matured in both the capability and performance, GPU-based computing has emerged as a new computing paradigm. Compare to traditional computing microprocessor, the modern GPU, as a compelling alternative microprocessor, has outstanding high parallel processing capability with cost-effectiveness and efficiency(Owens et al., 2008), although it is initially designed for graphical rendering in visualization pipe. This presentation reports a distributed GPU computing framework for integrating GPU-based computing within distributed environment. Within this framework, 1) for each single computer, computing resources of both GPU-based and CPU-based can be fully utilized to improve the performance of visualizing and processing Big Data; 2) within a network environment, a variety of computers can be used to build up a virtual super computer to support CPU-based and GPU-based computing in distributed computing environment; 3) GPUs, as a specific graphic targeted device, are used to greatly improve the rendering efficiency in distributed geo-visualization, especially for 3D/4D visualization. Key words: Geovisualization, GIScience, Spatiotemporal Studies Reference : 1. Ferreira de Oliveira, M. C., & Levkowitz, H. (2003). From visual data exploration to visual data mining: A survey. Visualization and Computer Graphics, IEEE

  9. Stitching the western Piedmont of Virginia: Early Paleozoic tectonic history of the Ellisville Pluton and the Potomac and Chopawamsic Terranes

    Science.gov (United States)

    Hughes, K. S.; Hibbard, J. P.; Sauer, R.T.; Burton, William C.

    2014-01-01

    The theme of the 2014 Virginia Geological Field Conference is the tectonic development, economic geology, and seismicity of the western Piedmont of Louisa County, Virginia. It is timely for the conference to turn its attention here, for during the past decade these aspects of western Piedmont geology have garnered the renewed attention of researchers. In terms of regional tectonics, it has been hypothesized that the major structure in the region, the Chopawamsic fault system, represents the most significant boundary in the Appalachian orogen, the main Iapetan suture (Hibbard et al., 2014). Economically, recent elevated market values of metals— particularly that of gold—has spurred reconsideration of the economic geology of the western Piedmont. Finally, the August 23, 2011, M5.8 earthquake, with its epicenter in our field area, startled the North American east coast and has revived awareness of the seismic potential of the region. This renewed interest in the geology of the western Piedmont of north-central Virginia has led to new detailed bedrock mapping, detailed surficial mapping, high-resolution UPb TIMS zircon geochronology, U-Pb LA-ICPMS detrital zircon geochronology, radiogenic isotope geochemistry, major/minor/REE geochemistry, and geophysical studies (e.g. Bailey et al., 2005, 2008; Bailey and Owens, 2012: Berti et al., 2012; Burton et al., 2014; Burton, in progress; Harrison, 2012; Horton et al., 2010, in press; Hughes, 2010, 2014; Hughes et al., 2013a, 2013b, 2014, in press a, in press b; Malenda, in progress; Owens et al., 2013; Spears and Gilmer 2012; Spears et al. 2013, Terblanche, 2013; Terblanche and Nance, 2012). A host of institutions have taken part in the research, including North Carolina State University, the Virginia Department of Mines, Minerals, and Energy, the U.S. Geological Survey, Virginia Tech, Lehigh University, and the College of William and Mary. Many of these investigations remain active. The majority of the data presented

  10. Are predictive equations for estimating resting energy expenditure accurate in Asian Indian male weightlifters?

    Directory of Open Access Journals (Sweden)

    Mini Joseph

    2017-01-01

    Full Text Available Background: The accuracy of existing predictive equations to determine the resting energy expenditure (REE of professional weightlifters remains scarcely studied. Our study aimed at assessing the REE of male Asian Indian weightlifters with indirect calorimetry and to compare the measured REE (mREE with published equations. A new equation using potential anthropometric variables to predict REE was also evaluated. Materials and Methods: REE was measured on 30 male professional weightlifters aged between 17 and 28 years using indirect calorimetry and compared with the eight formulas predicted by Harris–Benedicts, Mifflin-St. Jeor, FAO/WHO/UNU, ICMR, Cunninghams, Owen, Katch-McArdle, and Nelson. Pearson correlation coefficient, intraclass correlation coefficient, and multiple linear regression analysis were carried out to study the agreement between the different methods, association with anthropometric variables, and to formulate a new prediction equation for this population. Results: Pearson correlation coefficients between mREE and the anthropometric variables showed positive significance with suprailiac skinfold thickness, lean body mass (LBM, waist circumference, hip circumference, bone mineral mass, and body mass. All eight predictive equations underestimated the REE of the weightlifters when compared with the mREE. The highest mean difference was 636 kcal/day (Owen, 1986 and the lowest difference was 375 kcal/day (Cunninghams, 1980. Multiple linear regression done stepwise showed that LBM was the only significant determinant of REE in this group of sportspersons. A new equation using LBM as the independent variable for calculating REE was computed. REE for weightlifters = −164.065 + 0.039 (LBM (confidence interval −1122.984, 794.854]. This new equation reduced the mean difference with mREE by 2.36 + 369.15 kcal/day (standard error = 67.40. Conclusion: The significant finding of this study was that all the prediction equations

  11. Less accurate but more efficient family of search templates for detection of gravitational waves from inspiraling compact binaries

    International Nuclear Information System (INIS)

    Chronopoulos, Andreas E.; Apostolatos, Theocharis A.

    2001-01-01

    The network of interferometric detectors that is under construction at various locations on Earth is expected to start searching for gravitational waves in a few years. The number of search templates that is needed to be cross correlated with the noisy output of the detectors is a major issue since computing power capabilities are restricted. By choosing higher and higher post-Newtonian order expansions for the family of search templates we make sure that our filters are more accurate copies of the real waves that hit our detectors. However, this is not the only criterion for choosing a family of search templates. To make the process of detection as efficient as possible, one needs a family of templates with a relatively small number of members that manages to pick up any detectable signal with only a tiny reduction in signal-to-noise ratio. Evidently, one family is better than another if it accomplishes its goal with a smaller number of templates. Following the geometric language of Owen, we have studied the performance of the post 1.5 -Newtonian family of templates on detecting post 2 -Newtonian signals for binaries. Several technical issues arise from the fact that the two types of waveforms cannot be made to coincide by a suitable choice of parameters. In general, the parameter space of the signals is not identical with the parameter space of the templates, although in our case they are of the same dimension, and one has to take into account all such peculiarities before drawing any conclusion. An interesting result we have obtained is that the post 1.5 -Newtonian family of templates happens to be more economical for detecting post 2 -Newtonian signals than the perfectly accurate post 2 -Newtonian family of templates itself. The number of templates is reduced by 20-30%, depending on the acceptable level of reduction in signal-to-noise ratio due to discretization of the family of templates. This makes the post 1.5 -Newtonian family of templates more favorable

  12. Description of the physical environment and coal-mining history of west-central Indiana, with emphasis on six small watersheds

    Science.gov (United States)

    Martin, Jeffrey D.; Crawford, Charles G.; Duwelius, R.F.; Renn, D.E.

    1987-01-01

    Information on the geology, geomorphology, soils, climate, hydrology, water use, land use, population, and coal mining history of Clay, Owen, Sullivan, and Vigo Counties in Indiana is summarized. Site-specific information is given on the morphology , geology, soils, land use, coal mining history, and hydrologic instrumentation of the six watersheds which are each less than 3 sq mi in area. The Wabash, White, and Eel Rivers are the major drainages in west-central Indiana. Average annual precipitation is about 39.5 in/yr and average annual runoff is about 13 in/yr. The most productive aquifers are confined or unconfined outwash aquifers located along the major rivers. Bedrock aquifers are regionally insignificant but are the sole source of groundwater for areas that lack outwash, alluvium, or sand and gravel lenses in till. Indiana has more than 17 billion short tons of recoverable coal reserves; about 11% can be mined by surface methods. Almost half of Indiana 's surface reserves are in Clay, Owen, Sullivan, and Vigo Counties. More than 50,000 acres in west-central Indiana have been disturbed by surface coal mining from 1941 through 1980. Big Slough and Hooker Creek are streams that drain unmined, agricultural watersheds. Row-crop corn and soybeans are the principal crops. Soils are moderately well drained silt loams, and the watersheds well developed dendritic drainage systems. Unnamed tributaries drain mined and reclaimed watersheds. Ridges of mine spoil have been graded to a gently rolling topography. Soils are well drained and consist of 6 to 12 inches of silt-loam topsoil that was stockpiled and then replaced over shale and sandstone fragments of the graded mine spoil. Grasses and legumes form the vegetative cover in each watershed. Pond Creek and an unnamed tributary to Big Branch are streams that drain mined and unreclaimed watersheds. Soils are very well drained shaly silty loams that have formed on steeply sloping banks. Both watersheds contain numerous

  13. Pluvial lakes in the Great Basin of the western United States: a view from the outcrop

    Science.gov (United States)

    Reheis, Marith C.; Adams, Kenneth D.; Oviatt, Charles G.; Bacon, Steven N.

    2014-01-01

    late Pleistocene and Holocene. Outcrop studies have documented the integration histories of several important drainage basins, including the Humboldt, Amargosa, Owens, and Mojave river systems, that have evolved since the Miocene within the active tectonic setting of the Great Basin; these histories have influenced lake levels in terminal basins. Many pre-late Pleistocene lakes in the western Great Basin were significantly larger and record wetter conditions than the youngest lakes. Outcrop-based lake-level data provide important checks on core-based proxy interpretations; we discuss four such comparisons. In some cases, such as for Lakes Owens and Manix, outcrop and core data synthesis yields stronger and more complete records; in other cases, such as for Bonneville and Lahontan, conflicts point toward reconsideration of confounding factors in interpretation of core-based proxies.

  14. Relevance of East African Drill Cores to Human Evolution: the Case of the Olorgesailie Drilling Project

    Science.gov (United States)

    Potts, R.

    2016-12-01

    Drill cores reaching the local basement of the East African Rift were obtained in 2012 south of the Olorgesailie Basin, Kenya, 20 km from excavations that document key benchmarks in the origin of Homo sapiens. Sediments totaling 216 m were obtained from two drilling locations representing the past 1 million years. The cores were acquired to build a detailed environmental record spatially associated with the transition from Acheulean to Middle Stone Age technology and extensive turnover in mammalian species. The project seeks precise tests of how climate dynamics and tectonic events were linked with these transitions. Core lithology (A.K. Behrensmeyer), geochronology (A. Deino), diatoms (R.B. Owen), phytoliths (R. Kinyanjui), geochemistry (N. Rabideaux, D. Deocampo), among other indicators, show evidence of strong environmental variability in agreement with predicted high-eccentricity modulation of climate during the evolutionary transitions. Increase in hominin mobility, elaboration of symbolic behavior, and concurrent turnover in mammalian species indicating heightened adaptability to unpredictable ecosystems, point to a direct link between the evolutionary transitions and the landscape dynamics reflected in the Olorgesailie drill cores. For paleoanthropologists and Earth scientists, any link between evolutionary transitions and environmental dynamics requires robust evolutionary datasets pertinent to how selection, extinction, population divergence, and other evolutionary processes were impacted by the dynamics uncovered in drill core studies. Fossil and archeological data offer a rich source of data and of robust environment-evolution explanations that must be integrated into efforts by Earth scientists who seek to examine high-resolution climate records of human evolution. Paleoanthropological examples will illustrate the opportunities that exist for connecting evolutionary benchmarks to the data obtained from drilled African muds. Project members: R. Potts, A

  15. Interactions Between Wind Erosion, Vegetation Structure, and Soil Stability in Groundwater Dependent Plant Communities

    Science.gov (United States)

    Vest, K. R.; Elmore, A. J.; Okin, G. S.

    2009-12-01

    Desertification is a human induced global phenomenon causing a loss of biodiversity and ecosystem productivity. Semi-arid grasslands are vulnerable to anthropogenic impacts (i.e., groundwater pumping and surface water diversion) that decrease vegetation cover and increase bare soil area leading to a greater probability of soil erosion, potentially enhancing feedback processes associated with desertification. To enhance our understanding of interactions between anthropogenic, physical, and biological factors causing desertification, this study used a combination of modeling and field observations to examine the relationship between chronic groundwater pumping and vegetation cover change and its effects on soil erosion and stability. The work was conducted in Owens Valley California, where a long history of groundwater pumping and surface water diversion has lead to documented vegetation changes. The work examined hydrological, ecological and biogeochemical factors across thirteen sites in Owens Valley. We analyzed soil stability, vegetation and gap size, soil organic carbon, and we also installed Big Spring Number Eight (BSNE) catchers to calculate mass transport of aeolian sediment across sites. Mass transport calculations were used to validate a new wind erosion model that represents the effect of porous vegetation on surface windshear velocity. Results across two field seasons show that the model can be used to predict mass transport, and areas with increased groundwater pumping show a greater susceptibility to erosion. Sediment collected in BSNE catchers was positively correlated with site gap size. Additionally, areas with larger gap sizes have a greater threshold shear velocity and soil stability, yet mass transport was greater at these sites than at sites with smaller gap sizes. Although modeling is complicated by spatial variation in multiple model parameters (e.g., gap size, threshold shear velocity in gaps), our results support the hypothesis that soils

  16. Cataclysmic Rock Avalanche from El Capitan, Yosemite Valley, circa 3.6 ka

    Science.gov (United States)

    Stock, G. M.

    2008-12-01

    El Capitan in Yosemite Valley is one of the largest and most iconic granite faces in the world. Despite glacially steepened walls exceeding 90 degrees, a historic database shows relatively few rock falls from El Capitan in the past 150 years. However, a massive bouldery deposit beneath the southeast face suggests an earlier rock avalanche of unusually large size. Spatial analysis of airborne LiDAR data indicate that the rock avalanche deposit has a volume of ~2.70 x 106 m3, a maximum thickness of 18 m, and a runout distance of 660 m, roughly twice the horizontal extent of the adjacent talus. The deposit is very coarse on its distal edge, with individual boulder volumes up to 2500 m3. Cosmogenic 10Be exposure dates from boulders distributed across the deposit confirm this interpretation. Four 10Be samples are tightly clustered between 3.5 and 3.8 ka, with a mean age of 3.6 +/- 0.6 ka. A fifth sample gives a much older age of 22.0 ka, but a glacier occupied Yosemite Valley at this time, prohibiting deposition; thus, the older age likely results from exposure on the cliff face prior to failure. The similarity of ages and overall morphology suggest that the entire deposit formed during a single event. The mean exposure age coincides with inferred Holocene rupture of the northern Owens Valley and/or White Mountain fault(s) between 3.3 and 3.8 ka (Lee et al., 2001; Bacon and Pezzopane, 2007). This time coincidence, combined with the fact that historic rupture of the Owens Valley fault in A.D. 1872 generated numerous large rock falls in Yosemite Valley, strongly suggests that the El Capitan rock avalanche was triggered by a seismic event along the eastern margin of the Sierra Nevada circa 3.6 ka. As there is not an obvious "scar" on the expansive southeast face, the exact source area of the rock avalanche is not yet known. Detrital apatite U-Th/(He) thermochronometry can determine the elevation(s) from which rock fall boulders originate, but significant inter-sample age

  17. Cosmogenic Nuclide Exposure Dating of the Tiltill Rock Avalanche, Yosemite National Park

    Science.gov (United States)

    Ford, K. R.; Pluhar, C. J.; Stone, J. O.; Stock, G. M.; Zimmerman, S. R.

    2013-12-01

    Yosemite National Park serves as an excellent natural laboratory for studying rock falls and rock avalanches because these are the main processes modifying the nearly vertical slopes of this recently glaciated landscape. Mass wasting represents a significant hazard in the region and the database of previous rock falls and other mass wasting events in Yosemite is extensive, dating back to the mid-1800s. However, this record is too short to capture the recurrence characteristics and triggering mechanisms of the very largest events, necessitating studies of the geologic record of mass wasting. Rock falls and rock avalanches are readily dated by cosmogenic nuclide methods due to their instantaneous formation, and results can be tied to triggering events such as seismic activity (e.g. Stock et al., 2009). Here, we apply exposure dating to the Holocene Tiltill rock avalanche north of Hetch Hetchy Reservoir. The deposit comprises what appear to be two separate lobes of rock and debris, yielding a total volume of ~3.1 x 106 m3. Assuming an erosion rate of 0.0006 cm/yr and neglecting snowpack shielding, preliminary data suggest a mean exposure age of 11,000 + 600 year B.P. for both deposits, indicating that they were emplaced in a single event. The age of the Tiltill 'slide' is similar to earthquakes on the Owens Valley Fault between 10,800 + 600 and 10,200 + 200 cal year B.P. (Bacon, 2007) and the White Mountain Fault, ~10,000 cal year B.P. (Reheis, 1996; DePolo, 1989). Given that movement on the Owens Valley fault in 1872 caused a number of rock falls in Yosemite and the coincidence of ages between the Tiltill 'slide' and paleoseismic events, a large earthquake in Eastern Sierra Nevada may have triggered this event. Other trigger events are also possibilities, but only through compilation of a database of large rock avalanches can statistically significant groupings of events begin to demonstrate whether seismic triggering is a dominant process.

  18. Recreating Galileo's 1609 Discovery of Lunar Mountains

    Science.gov (United States)

    Pasachoff, Jay M.; Needham, Paul S.; Wright, Ernest T.; Gingerich, Owen

    2014-11-01

    The question of exactly which lunar features persuaded Galileo that there were mountains on the moon has not yet been definitively answered; Galileo was famously more interested in the concepts rather than the topographic mapping in his drawings and the eventual engravings. Since the pioneering work of Ewen Whitaker on trying to identify which specific lunar-terminator features were those that Galileo identified as mountains on the moon in his 1609 observations reported in his Sidereus Nuncius (Venice, 1610), and since the important work on the sequence of Galileo's observations by Owen Gingerich (see "The Mystery of the Missing 2" in Galilaeana IX, 2010, in which he concludes that "the Florentine bifolium sheet [with Galileo's watercolor images] is Galileo's source for the reworked lunar diagrams in Sidereus Nuncius"), there have been advances in lunar topographical measurements that should advance the discussion. In particular, one of us (E.T.W.) at the Scientific Visualization Studio of NASA's Goddard Space Flight Center has used laser-topography from NASA's Lunar Reconnaissance Orbiter to recreate what Galileo would have seen over a sequence of dates in late November and early December 1609, and provided animations both at native resolution and at the degraded resolution that Galileo would have observed with his telescope. The Japanese Kaguya spacecraft also provides modern laser-mapped topographical maps.

  19. Ulysses in the United Kingdom: Difficulties with a capacity-based justification for self-binding in bipolar disorder.

    Science.gov (United States)

    Kane, Nuala B

    2017-10-01

    There has been a recent proposal by Gergel and Owen for introduction of legally enforceable self-binding directives for persons with bipolar affective disorder in the United Kingdom. The model is rooted in presence or absence of decision-making capacity, and the notion of capacity used is an expansion of the usual notion of capacity, in that it is individualized and diachronic. In this article, I argue that an individualized notion of capacity either lacks a coherent foundation or exposes itself to a situation where epistemological error results in a double standard or unjustified enforcement of the directive. I also raise concern that the diachronic notion of capacity leads to an authenticity type account, which fails to incorporate differences in individual prognosis. I then present a rough sketch of an alternative account, more in keeping with current mental health legislation, which uses an individualized notion of "risk to self" to justify self-binding directives in bipolar disorder. © 2017 John Wiley & Sons, Ltd.

  20. Surface energy for electroluminescent polymers and indium-tin-oxide

    International Nuclear Information System (INIS)

    Zhong Zhiyou; Yin Sheng; Liu Chen; Zhong Youxin; Zhang Wuxing; Shi Dufang; Wang Chang'an

    2003-01-01

    The contact angles on the thin films of poly[2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) and indium-tin-oxide (ITO) were measured by the sessile-drop technique. The surface energies of the films were calculated using the Owens-Wendt (OW) and van Oss-Chaudhury-Good (vOCG) approaches. The overall total surface energies of MEH-PPV and the as-received ITO were 30.75 and 30.07 mJ/m 2 , respectively. Both approaches yielded almost the same surface energies. The surface energies were mainly contributed from the dispersion interactions or Lifshitz-van der Waals (LW) interactions for both MEH-PPV and ITO. The changes in the contact angles and surface energies of the ITO films, due to different solvent cleaning processes and oxygen plasma treatments, were analyzed. Experimental results revealed that the total surface energy of the ITO films increased after various cleaning processes. In comparison with different solvents used in this study, we found that methanol is an effective solvent for ITO cleaning, as a higher surface energy was observed. ITO films treated with oxygen plasma showed the highest surface energy. This work demonstrated that contact angle measurement is a useful method to diagnose the cleaning effect on ITO films

  1. Modulation of the wettability of excipients by surfactant and its impacts on the disintegration and release of tablets.

    Science.gov (United States)

    Yang, Baixue; Xu, Lu; Wang, Qiuxiao; Li, Sanming

    2016-12-01

    To investigate the modulation of the wettability of excipients by different types of surfactants and its impacts on the disintegration of tablets and drug release. The critical micelle concentration (CMC) of surfactants, including sodium dodecyl sulfate (SDS), sodium dodecyl benzene sulfonate (SDBS), dodecyl trimethyl ammonium bromide (DTAB), cetyltrimethyl ammonium bromide (CTAB) and polysorbate (Tween-20 and Tween-80), was obtained using the platinum ring method. Contact angles of surfactant solutions on the excipient compacts and double-distilled water on the mixture of surfactant and the other excipient (magnesium stearate (MgSt) or sodium alginate (SA)) were measured by the sessile drop technique. Besides, surface free energy of excipients was calculated by the Owens method. Finally, the disintegration of tablets and in vitro dissolution testing were performed according to the method described in USP. The wettability of excipients could be enhanced to different extent with low concentration of surfactant solutions and maintained stable basically after CMC. For MgSt (hydrophobic excipient), the shorter the hydrophobic chain (C 12 , including SDS and DTAB), the better the wettability with the addition of surfactant in the formulation, leading to the shorter disintegration time of tablets and higher drug release rate. In contrast, the wettability of SA (hydrophilic excipient) was reduced by adding surfactant, resulting in the longer disintegration time of tablets and lower release rate. The modulation of the wetting of pharmaceutical excipients by surfactant had changed the disintegration time of tablets and drug release rate to a greater extent.

  2. The offshore benthic fish community

    Science.gov (United States)

    Lantry, Brian F.; Lantry, Jana R.; Weidel, Brian C.; Walsh, Maureen; Hoyle, James A.; Schaner, Teodore; Neave, Fraser B.; Keir, Michael

    2014-01-01

    Lake Ontario’s offshore benthic fish community includes primarily slimy sculpin, lake whitefish, rainbow smelt, lake trout, burbot, and sea lamprey. Of these, lake trout have been the focus of an international restoration effort for more than three decades (Elrod et al. 1995; Lantry and Lantry 2008). The deepwater sculpin and three species of deepwater ciscoes (Coregonus spp.) that were historically important in the offshore benthic zone became rare or were extirpated by the 1960s (Christie 1973; Owens et al. 2003; Lantry et al. 2007b; Roth et al. 2013). Ecosystem changes continue to influence the offshore benthic fish community, including the effects of dreissenid mussels, the near disappearance of burrowing amphipods (Diporeia spp.) (Dermott et al. 2005; Watkins et al. 2007), and the increased abundance and expanded geographic distribution of round goby (see Nearshore Fish Community chapter) (Lantry et al. 2007b). The fish-community objectives for the offshore benthic fish community, as described by Stewart et al. (1999), are:

  3. Reionization and its imprint of the cosmic microwave background

    Science.gov (United States)

    Dodelson, Scott; Jubas, Jay M.

    1995-01-01

    Early reionization changes the pattern of anisotropies expected in the cosmic microwave backgrond. To explore these changes, we derive from first principles the equations governing anisotropies, focusing on the interactions of photons with electrons. Vishniac (1987) claimed that second-order terms can be large in a reionized universe, so we derive equations correct to second order in the perturbations. There are many more second-order terms than were considered by Vishniac. To understand the basic physics involved, we present a simple analytic approximation to the first-order equation. Then, turning to the second order equation, we show that the Vishniac term is indeed the only important one. We also present numerical results for a variety of ionization histories (in a standard cold dark matter universe) and show quantitatively how the signal in several experiments depends on the ionization history. The most pronounced indication of a reionized universe would be seen in very small scale experiments; the expected signal in the Owens Valley experiment is smaller by a factor of order 10 if the last scattering surface is at a redshift z approximately = 100 as it would be if the universe were reionized very early. On slightly larger scales, the expected signal in a reionized universe is smaller than it would be with standard recombination, but only a factor of 2 or so. The signal is even smaller in these experiments in the intermediate case where some photons last scattered at the standard recombination epoch.

  4. A Linguistic Inquiry and Word Count Analysis of the Adult Attachment Interview in Two Large Corpora.

    Science.gov (United States)

    Waters, Theodore E A; Steele, Ryan D; Roisman, Glenn I; Haydon, Katherine C; Booth-LaForce, Cathryn

    2016-01-01

    An emerging literature suggests that variation in Adult Attachment Interview (AAI; George, Kaplan, & Main, 1985) states of mind about childhood experiences with primary caregivers is reflected in specific linguistic features captured by the Linguistic Inquiry Word Count automated text analysis program (LIWC; Pennebaker, Booth, & Francis, 2007). The current report addressed limitations of prior studies in this literature by using two large AAI corpora ( N s = 826 and 857) and a broader range of linguistic variables, as well as examining associations of LIWC-derived AAI dimensions with key developmental antecedents. First, regression analyses revealed that dismissing states of mind were associated with transcripts that were more truncated and deemphasized discussion of the attachment relationship whereas preoccupied states of mind were associated with longer, more conflicted, and angry narratives. Second, in aggregate, LIWC variables accounted for over a third of the variation in AAI dismissing and preoccupied states of mind, with regression weights cross-validating across samples. Third, LIWC-derived dismissing and preoccupied state of mind dimensions were associated with direct observations of maternal and paternal sensitivity as well as infant attachment security in childhood, replicating the pattern of results reported in Haydon, Roisman, Owen, Booth-LaForce, and Cox (2014) using coder-derived dismissing and preoccupation scores in the same sample.

  5. Atmosphere Refraction Effects in Object Locating for Optical Satellite Remote Sensing Images

    Directory of Open Access Journals (Sweden)

    YAN Ming

    2015-09-01

    Full Text Available The collinear rigorous geometric model contains the atmosphere refraction geometric error in off-nadir observation. In order to estimate and correct the atmosphere refraction geometric error, the ISO international standard atmospheric model and Owens atmosphere refractive index algorithm are applied to calculate the index of atmosphere refraction in different latitude and altitude. The paper uses the weighted mean algorithm to reduce the eight layers ISO standard atmospheric model into a simple troposphere and stratosphere two layers spherical atmosphere. And the LOS vector track geometric algorithm is used to estimate the atmosphere refraction geometric error in different observation off-nadir angle. The results show that the atmosphere refraction will introduce about 2.5 m or 9 m geometric displacement in 30 or 45 degree off-nadir angle individual. Therefore, during geo-location processing of agile platform and extra wide high spatial resolution imagery, there is need to take into account the influence of atmosphere refraction and correct the atmosphere refraction geometric error to enhance the geo-location precision without GCPs.

  6. Interaction of the Helium, Hydrogen, Air, Argon, and Nitrogen Bubbles with Graphite Surface in Water.

    Science.gov (United States)

    Bartali, Ruben; Otyepka, Michal; Pykal, Martin; Lazar, Petr; Micheli, Victor; Gottardi, Gloria; Laidani, Nadhira

    2017-05-24

    The interaction of the confined gas with solid surface immersed in water is a common theme of many important fields such as self-cleaning surface, gas storage, and sensing. For that reason, we investigated the gas-graphite interaction in the water medium. The graphite surface was prepared by mechanical exfoliation of highly oriented pyrolytic graphite (HOPG). The surface chemistry and morphology were studied by X-ray photoelectron spectroscopy, profilometry, and atomic force microscopy. The surface energy of HOPG was estimated by contact angle measurements using the Owens-Wendt method. The interaction of gases (Ar, He, H 2 , N 2 , and air) with graphite was studied by a captive bubble method, in which the gas bubble was in contact with the exfoliated graphite surface in water media. The experimental data were corroborated by molecular dynamics simulations and density functional theory calculations. The surface energy of HOPG equaled to 52.8 mJ/m 2 and more of 95% of the surface energy was attributed to dispersion interactions. The results on gas-surface interaction indicated that HOPG surface had gasphilic behavior for helium and hydrogen, while gasphobic behavior for argon and nitrogen. The results showed that the variation of the gas contact angle was related to the balance between the gas-surface and gas-gas interaction potentials. For helium and hydrogen the gas-surface interaction was particularly high compared to gas-gas interaction and this promoted the favorable interaction with graphite surface.

  7. Non-small cell lung cancer therapy: safety and efficacy in the elderly

    Directory of Open Access Journals (Sweden)

    Glotzer OS

    2013-04-01

    Full Text Available Owen S Glotzer,1 Thomas Fabian,1 Anurag Chandra,2 Charles T Bakhos21Division of Thoracic Surgery, Albany Medical Center, Department of Surgery, Albany Medical College, Albany, New York, USA; 2Department of Radiation Oncology, Albany Medical Center, Albany Medical College, Albany, New York, USABackground: Our objective was to evaluate and review the current literature on the treatment of non-small cell lung cancer (NSCLC in the elderly.Methods: We selected recent peer-reviewed articles addressing ageing, cancer treatment in the elderly, and lung cancer treatment in the elderly. We defined elderly as over the age of 70.Results: The population is ageing dramatically throughout most of the world. Given that situation, clinicians are seeing and being asked to treat more elderly patients that have NSCLC. Elderly patients are less likely to participate or be allowed to participate in prospective or retrospective studies of treatments for NSCLC. Elderly patients are also less likely to be staged appropriately for their advanced tumors, and are less likely to be referred for surgery or adjuvant therapy after surgery. When treatment is tailored to patient comorbidities but not to age, the data support survival and outcomes comparable to those of younger patients.Conclusions: Data are limited on the treatment of elderly patients with NSCLC. No data exist to support limiting recommendations for treatment based on age alone. Treatments should be determined on an individual basis.Keywords: thoracic surgery, radiation therapy, chemotherapy, pulmonary, physiology, ageing, SBRT

  8. Discussion on ``Foundations of the Second Law''

    Science.gov (United States)

    Silbey, Robert; Ao, Ping; Beretta, Gian Paolo; Cengel, Yunus; Foley, Andrew; Freedman, Steven; Graeff, Roderich; Keck, James C.; Lloyd, Seth; Maroney, Owen; Nieuwenhuizen, Theodorus M.; Weissman, Michael

    2008-08-01

    This article reports an open discussion that took place during the Keenan Symposium "Meeting the Entropy Challenge" (held in Cambridge, Massachusetts, on October 4, 2007) following the short presentations—each reported as a separate article in the present volume—by Seth Lloyd, Owen Maroney, Silviu Guiasu, Ping Ao, Jochen Gemmer, Bernard Guy, Gian Paolo Beretta, Speranta Gheorghiu-Svirschevski, and Dorion Sagan. All panelists and the audience were asked to address the following questions • Why is the second law true? Is it an inviolable law of nature? If not, is it possible to develop a perpetual motion machine of the second kind? • Are second law limitations objective or subjective, real or apparent, due to the nature of physical states or the representation and manipulation of information? Is entropy a physical property in the same sense as energy is universally understood to be an intrinsic property of matter? • Does the second law conflict with quantum mechanics? Are the differences between mechanical and thermodynamic descriptions of physical phenomena reconcilable? Does the reversible law of motion of hamiltonian mechanics and quantum mechanics conflict with the empirical observation of irreversible phenomena?

  9. Isostatic anomaly characteristics and dynamic environment of New Britain Ocean trenches and neighboring Area in Papua New Guinea

    Science.gov (United States)

    Yang, G.; Shen, C.; Wang, J.

    2017-12-01

    we calculated the Bouguer gravity anomaly and the Airy-Heiskanen isostatic anomaly in the New Britain ocean trenches and its surrounding areas of Papua New Guinea using the topography model and the gravity anomaly model from Scripps Institute of Oceanography, and analyzed the characteristics of isostatic anomaly and the earthquake dynamic environment of this region. The results show that there are obviously differences in the isostatic state between each block in the region, and the crustal tectonic movement is very intense in the regions with high positive or negative isostatic gravity anomalies; A number of sub-plates in this area is driven by the external tectonic action such as plate subduction and thrust of the Pacific plate, the Indian - Australian plate and the Eurasian plate. From the distribution of isostatic gravity anomaly, the tectonic action of anti-isostatic movement in this region is the main source of power; from the isostatic gravity and the spatial distribution of the earthquake, with the further contraction of the Indian-Australian plate, the southwestern part of the Solomon Haiya plate will become part of the Owen Stanley fold belt, the northern part will enter the lower part of the Bismarck plate, eastern part will enter the front of the Pacific plate, the huge earthquake will migrate to the north and east of the Solomon Haiya plate.

  10. Accumulation of organic carbon in northwestern Arabian sea sediments

    International Nuclear Information System (INIS)

    Khan, A.A.

    1999-01-01

    In this study accumulation of organic carbon in marine sediments of northwestern Arabian sea has been discussed. This paper presents the geochemical analysis of Organic carbon content and accumulation, delta 13 stable carbon isotope and Ba/Al. The primary objective was to investigate the high resolution information about the variations in paleoproductivity and source of organic matter in sediments below an upwelling area. Undisturbed sediments (Piston core NIOP-486) of late Pleistocene time were collected during Netherlands Indian Ocean Program (NIOP-1992-93). The core NIOP-486 was raised from a depth of 2077 meters near the Owen Ridge. This core records deposition history of last 200,000 years and includes 4 warm and 3 cold periods. The distribution of organic carbon content in studied core shows a pronounced cyclicity during glacial and interglacial stages. Organic carbon accumulation trends show that high sedimentation rates in glacial stages results in rapid burial and hence increase organic carbon accumulation. Paleoproductivity indicator Ba/Al has been used to compare with the organic carbon content and is correlated with the warm and cold periods variations in monsoons upwelling intensity. Generally, low paleoproductivity is found in glacial stages. The organic carbon content and accumulation, in sediments however seems to differ from the paleoproductivity trends shown by Ba/Al in glacial sediments of stage 6. Delta 13 C.org isotope results of the core NIOP-486 confirm that organic matter in sediments is predominantly marine (-20 to -23% ). (author)

  11. Cooptimization of Adhesion and Power Conversion Efficiency of Organic Solar Cells by Controlling Surface Energy of Buffer Layers.

    Science.gov (United States)

    Lee, Inhwa; Noh, Jonghyeon; Lee, Jung-Yong; Kim, Taek-Soo

    2017-10-25

    Here, we demonstrate the cooptimization of the interfacial fracture energy and power conversion efficiency (PCE) of poly[N-9'-heptadecanyl-2,7-carbazole-alt-5,5-(4',7'-di-2-thienyl-2',1',3'-benzothiadiazole)] (PCDTBT)-based organic solar cells (OSCs) by surface treatments of the buffer layer. The investigated surface treatments of the buffer layer simultaneously changed the crack path and interfacial fracture energy of OSCs under mechanical stress and the work function of the buffer layer. To investigate the effects of surface treatments, the work of adhesion values were calculated and matched with the experimental results based on the Owens-Wendt model. Subsequently, we fabricated OSCs on surface-treated buffer layers. In particular, ZnO layers treated with poly[(9,9-bis(3'-(N,N-dimethylamino)propyl)-2,7-fluorene)-alt-2,7-(9,9-dioctylfluorene)] (PFN) simultaneously satisfied the high mechanical reliability and PCE of OSCs by achieving high work of adhesion and optimized work function.

  12. The case for policy-relevant conservation science.

    Science.gov (United States)

    Rose, David C

    2015-06-01

    Drawing on the "evidence-based" (Sutherland et al. 2013) versus "evidence-informed" debate (Adams & Sandbrook 2013), which has become prominent in conservation science, I argue that science can be influential if it holds a dual reference (Lentsch & Weingart 2011) that contributes to the needs of policy makers whilst maintaining technical rigor. In line with such a strategy, conservation scientists are increasingly recognizing the usefulness of constructing narratives through which to enhance the influence of their evidence (Leslie et al. 2013; Lawton & Rudd 2014). Yet telling stories alone is rarely enough to influence policy; instead, these narratives must be policy relevant. To ensure that evidence is persuasive alongside other factors in a complex policy-making process, conservation scientists could follow 2 steps: reframe within salient political contexts and engage more productively in boundary work, which is defined as the ways in which scientists "construct, negotiate, and defend the boundary between science and policy" (Owens et al. 2006:640). These will both improve the chances of evidence-informed conservation policy. © 2015 The Authors. Conservation Biology published by Wiley Periodicals, Inc., on behalf of Society for Conservation Biology.

  13. Ensouling the Beatific Vision. Motivating the Reformed Impulse

    Directory of Open Access Journals (Sweden)

    Farris Joshua R.

    2017-05-01

    Full Text Available The beatific vision is a subject of considerable importance both in the Christian Scriptures and in the history of Christian dogmatics. In it, humans experience and see the perfect immaterial God, which represents the final end for the saints. However, this doctrine has received less attention in the contemporary theological literature, arguably, due in part to the growing trend toward materialism and the sole emphasis on bodily resurrection in Reformed eschatology. As a piece of retrieval by drawing from the Scriptures, Medieval Christianity, and Reformed Christianity, we motivate a case for the Reformed emphasis on the immaterial and intellectual aspects of human personal eschatology and offer some constructive thoughts on how to link it to the contemporary emphasis of the body. We draw a link between the soul and the body in the vision with the help of Christology as reflected in the theology of John Calvin, and, to a greater extent, the theology of both John Owen and Jonathan Edwards.

  14. ON THE ORIGIN OF FANAROFF-RILEY CLASSIFICATION OF RADIO GALAXIES: DECELERATION OF SUPERSONIC RADIO LOBES

    International Nuclear Information System (INIS)

    Kawakatu, Nozomu; Kino, Motoki; Nagai, Hiroshi

    2009-01-01

    We argue that the origin of 'FRI/FRII dichotomy' - the division between Fanaroff-Riley class I (FRI) with subsonic lobes and class II (FRII) radio sources with supersonic lobes is sharp in the radio-optical luminosity plane (Owen-White diagram) - can be explained by the deceleration of advancing radio lobes. The deceleration is caused by the growth of the effective cross-sectional area of radio lobes. We derive the condition in which an initially supersonic lobe turns into a subsonic lobe, combining the ram pressure equilibrium between the hot spots and the ambient medium with the relation between 'the hot spot radius' and 'the linear size of radio sources' obtained from the radio observations. We find that the dividing line between the supersonic lobes and subsonic ones is determined by the ratio of the jet power L j to the number density of the ambient matter at the core radius of the host galaxy n-bar a . It is also found that the maximal ratio of (L j ,n-bar a ) exists and its value resides in (L j ,n-bar a ) max ∼10 44-47 er s -1 cm 3 , taking into account considerable uncertainties. This suggests that the maximal value (L j ,n-bar a ) max separates between FRIs and FRIIs.

  15. Charles Darwin's beagle voyage, fossil vertebrate succession, and "the gradual birth & death of species".

    Science.gov (United States)

    Brinkman, Paul D

    2010-01-01

    The prevailing view among historians of science holds that Charles Darwin became a convinced transmutationist only in the early spring of 1837, after his Beagle collections had been examined by expert British naturalists. With respect to the fossil vertebrate evidence, some historians believe that Darwin was incapable of seeing or understanding the transmutationist implications of his specimens without the help of Richard Owen. There is ample evidence, however, that he clearly recognized the similarities between several of the fossil vertebrates he collected and some of the extant fauna of South America before he returned to Britain. These comparisons, recorded in his correspondence, his diary and his notebooks during the voyage, were instances of a phenomenon that he later called the "law of the succession of types." Moreover, on the Beagle, he was following a geological research agenda outlined in the second volume of Charles Lyell's Principles of Geology, which implies that paleontological data alone could provide an insight into the laws which govern the appearance of new species. Since Darwin claims in On the Origin of Species that fossil vertebrate succession was one of the key lines of evidence that led him to question the fixity of species, it seems certain that he was seriously contemplating transmutation during the Beagle voyage. If so, historians of science need to reconsider both the role of Britain's expert naturalists and the importance of the fossil vertebrate evidence in the development of Darwin's ideas on transmutation.

  16. Water and sediment quality of the Lake Andes and Choteau Creek basins, South Dakota, 1983-2000

    Science.gov (United States)

    Sando, Steven Kent; Neitzert, Kathleen M.

    2003-01-01

    The Bureau of Reclamation has proposed construction of the Lake Andes/Wagner Irrigation Demonstration Project to investigate environmental effects of irrigation of glacial till soils substantially derived from marine shales. During 1983-2000, the U.S. Geological Survey collected hydrologic, water-quality, and sediment data in the Lake Andes and Choteau Creek Basins, and on the Missouri River upstream and downstream from Choteau Creek, to provide baseline information in support of the proposed demonstration project. Lake Andes has a drainage area of about 230 mi2 (square miles). Tributaries to Lake Andes are ephemeral. Water-level fluctuations in Lake Andes can be large, and the lake has been completely dry on several occasions. The outlet aqueduct from Lake Andes feeds into Garden Creek, which enters Lake Francis Case just upstream from Fort Randall Dam on the Missouri River. For Lake Andes tributary stations, calcium, magnesium, and sodium are approximately codominant among the cations, and sulfate is the dominant anion. Dissolved-solids concentrations typically range from about 1,000 mg/L (milligrams per liter) to about 1,700 mg/L. Major-ion concentrations for Lake Andes tend to be higher than the tributaries and generally increase downstream in Lake Andes. Proportions of major ions are similar among the different lake units (with the exception of Owens Bay), with calcium, magnesium, and sodium being approximately codominant among cations, and sulfate being the dominant anion. Owens Bay is characterized by a calcium sulfate water type. Dissolved-solids concentrations for Lake Andes typically range from about 1,400 to 2,000 mg/L. Whole-water nitrogen and phosphorus concentrations are similar among the Lake Andes tributaries, with median whole-water nitrogen concentrations ranging from about 1.6 to 2.4 mg/L, and median whole-water phosphorus concentrations ranging from about 0.5 to 0.7 mg/L. Whole-water nitrogen concentrations in Lake Andes are similar among the

  17. Effect of pre- and post-marination aging on meat quality attributes of early deboned (2 h postmortem) broiler breast fillets.

    Science.gov (United States)

    Kuttappan, V A; Gunsaulis, V B; Mauromoustakos, A; Meullenet, J F; Owens, C M

    2016-11-01

    Marination is an effective method that can be used to improve the tenderness of early deboned breast fillets. The present study was designed to evaluate the effect of pre- and post-marination aging of 2 h postmortem (PM) deboned chicken fillets to get optimum meat quality. In this study, a total of 300 broilers (43 to 46 d of age) were processed using an in-line system and deboned at 2 h PM. Fillets were marinated, at either 2.5, 4, 6, 8 or 24 h PM, using vacuum tumbling (20 min) with a 15% marinade (final concentration of 0.5% salt and 0.45% phosphate). A non-marinated control (CON) was included. The left (HOLD) fillets were aged (held at 4°C for 24 h) prior to freezing post-marination while the right (NO HOLD) fillets were frozen immediately after marination to simulate various commercial practices. Marination pickup (MPU), total marinade retained after thawing (TMR), total purge loss after thawing (TPL), cook loss (CL), and Meullenet-Owens Razor Shear energy (MORSE) values were measured. Both in HOLD and NO HOLD fillets, there was an increase (P water holding capacity. However, both in HOLD and NO HOLD groups, the MORSE values for the marinated fillets decreased (P retention as well as tenderness (or lower shear values). © 2016 Poultry Science Association Inc.

  18. A water resources model to explore the implications of energy alternatives in the southwestern US

    Science.gov (United States)

    Yates, D.; Averyt, Kristen; Flores-Lopez, Francisco; Meldrum, J.; Sattler, S.; Sieber, J.; Young, C.

    2013-12-01

    This letter documents the development and validation of a climate-driven, southwestern-US-wide water resources planning model that is being used to explore the implications of extended drought and climate warming on the allocation of water among competing uses. These model uses include a separate accounting for irrigated agriculture; municipal indoor use based on local population and per-capita consumption; climate-driven municipal outdoor turf and amenity watering; and thermoelectric cooling. The model simulates the natural and managed flows of rivers throughout the southwest, including the South Platte, the Arkansas, the Colorado, the Green, the Salt, the Sacramento, the San Joaquin, the Owens, and more than 50 others. Calibration was performed on parameters of land cover, snow accumulation and melt, and water capacity and hydraulic conductivity of soil horizons. Goodness of fit statistics and other measures of performance are shown for a select number of locations and are used to summarize the model’s ability to represent monthly streamflow, reservoir storages, surface and ground water deliveries, etc, under 1980-2010 levels of sectoral water use.

  19. A Search for Quasi-periodic Oscillations in the Blazar 1ES 1959+650

    Energy Technology Data Exchange (ETDEWEB)

    Li, Xiao-Pan; Luo, Yu-Hui; Yang, Hai-Yan; Cai, Yan; Yang, Hai-Tao [Department of Physics, Zhaotong University, Zhaotong, 657000 (China); Yang, Cheng, E-mail: lxpzrc@163.com [College of Photoelectron and Communication Engineering, Yunnan Open University, Kunming, 650223 (China)

    2017-09-20

    We have searched quasi-periodic oscillations (QPOs) in the 15 GHz light curve of the BL Lac object 1ES 1959+650 monitored by the Owens Valley Radio Observatory 40 m telescope during the period from 2008 January to 2016 February, using the Lomb–Scargle Periodogram, power spectral density (PSD), discrete autocorrelation function, and phase dispersion minimization (PDM) techniques. The red noise background has been established via the PSD method, and no QPO can be derived at the 3 σ confidence level accounting for the impact of the red noise variability. We conclude that the light curve of 1ES 1959+650 can be explained by a stochastic red noise process that contributes greatly to the total observed variability amplitude, dominates the power spectrum, causes spurious bumps and wiggles in the autocorrelation function and can result in the variance of the folded light curve decreasing toward lower temporal frequencies when few-cycle, sinusoid-like patterns are present. Moreover, many early supposed periodicity claims for blazar light curves need to be reevaluated assuming red noise.

  20. Confusing dinosaurs with mammals: tetrapod phylogenetics and anatomical terminology in the world of homology.

    Science.gov (United States)

    Harris, Jerald D

    2004-12-01

    At present, three different systems of anatomical nomenclature are available to researchers describing new tetrapod taxa: a nonstandardized traditional system erected in part by Sir Richard Owen and subsequently elaborated by Alfred Romer; a standardized system created for avians, the Nomina Anatomica Avium (NAA); and a standardized system for extant (crown-group) mammals, the Nomina Anatomica Veterinaria (NAV). Conserved homologous structures widely distributed within the Tetrapoda are often granted different names in each system. The recent shift toward a phylogenetic system based on homology requires a concomitant shift toward a single nomenclatural system also based on both evolutionary and functional morphological homology. Standardized terms employed in the NAA and NAV should be perpetuated as far as possible basally in their respective phylogenies. Thus, NAA terms apply to nonavian archosaurs (or even all diapsids) and NAV terms apply to noncrown-group mammals and more basal synapsids. Taxa equally distant from both avians and crown-group mammals may maintain the traditional nonstandardized terminology until a universal anatomical nomenclature for all tetrapods is constructed. (c) 2004 Wiley-Liss, Inc.

  1. Management strategies for fibromyalgia

    Directory of Open Access Journals (Sweden)

    Le Marshall KF

    2011-07-01

    Full Text Available Kim Francis Le Marshall, Geoffrey Owen LittlejohnDepartments of Rheumatology and Medicine, Monash Medical Centre and Monash University, Victoria, AustraliaDate of preparation: 14 June 2011Clinical question: What are the effective, evidence-based strategies available for the management of fibromyalgia?Conclusion: There are a number of management strategies available with robust evidence to support their use in clinical practice.Definition: Fibromyalgia is a complex pain syndrome characterized by widespread, chronic muscular pain and tenderness, disordered sleep, emotional distress, cognitive disturbance, and fatigue. Its prevalence is estimated to be 3%–5% in the population and higher yet in patients with comorbid rheumatic diseases.Level of evidence: Systematic reviews, meta-analyses, randomized controlled trials (RCTs.Search sources: PubMed, Cochrane Library, manual searchConsumer summary: Key messages for patients and clinicians are:1. There are many effective pharmacological management strategies available for fibromyalgia.2. A nonpharmacological, multicomponent approach utilizing education, aerobic exercise, psychological therapy, and other strategies is also effective for fibromyalgia.3. Despite the significant and, at times, disabling physical and psychological symptoms, fibromyalgia can be a manageable condition with a potentially good outcome.Keywords: fibromyalgia, pain, treatment, management, evidence 

  2. Relationship between surface properties (roughness, wettability) of titanium and titanium alloys and cell behaviour

    International Nuclear Information System (INIS)

    Ponsonnet, L.; Reybier, K.; Jaffrezic, N.; Comte, V.; Lagneau, C.; Lissac, M.; Martelet, C.

    2003-01-01

    Cell attachment and spreading to titanium-based alloy surfaces is a major parameter in implant technology. In this paper, substratum surface hydrophobicity, surface free energy, interfacial free energy and surface roughness were investigated to ascertain which of these parameters is predominant in human fibroblast spreading. Two methods for contact angle measurement were compared: the sessile drop method and the captive bubble two-probe method. The relationship between surface roughness and the sessile drop contact angles of various engineered titanium surfaces such as commercial pure titanium (cp-Ti), titanium-aluminium-vanadium alloy (Ti-6Al-4V), and titanium-nickel (NiTi), was shown. Surface free energy (SFE) calculations were performed from contact angles obtained on smooth samples based on the same alloys in order to eliminate the roughness effect. SFE of the surfaces have been calculated using the Owens-Wendt (OW) and Van Oss (VO) approaches with the sessile drop method. The OW calculations are used to obtain the dispersive (γ d ) and polar (γ p ) component of SFE, and the VO approach allows to reach the apolar (γ LW ) and the polar acid-base component (γ ab ) of the surface. From captive bubble contact angle experiments (air or octane bubble under water), the interfacial free energy of the different surfaces in water was obtained. A relationship between cell spreading and the polar component of SFE was found. Interfacial free energy values were low for all the investigated surfaces indicating good biocompatibility for such alloys

  3. Adhesive properties and adhesive joints strength of graphite/epoxy composites

    Science.gov (United States)

    Rudawska, Anna; Stančeková, Dana; Cubonova, Nadezda; Vitenko, Tetiana; Müller, Miroslav; Valášek, Petr

    2017-05-01

    The article presents the results of experimental research of the adhesive joints strength of graphite/epoxy composites and the results of the surface free energy of the composite surfaces. Two types of graphite/epoxy composites with different thickness were tested which are used to aircraft structure. The single-lap adhesive joints of epoxy composites were considered. Adhesive properties were described by surface free energy. Owens-Wendt method was used to determine surface free energy. The epoxy two-component adhesive was used to preparing the adhesive joints. Zwick/Roell 100 strength device were used to determination the shear strength of adhesive joints of epoxy composites. The strength test results showed that the highest value was obtained for adhesive joints of graphite-epoxy composite of smaller material thickness (0.48 mm). Statistical analysis of the results obtained, the study showed statistically significant differences between the values of the strength of the confidence level of 0.95. The statistical analysis of the results also showed that there are no statistical significant differences in average values of surface free energy (0.95 confidence level). It was noted that in each of the results the dispersion component of surface free energy was much greater than polar component of surface free energy.

  4. Cometary X-rays - the View After the First Chandra Cycle

    Science.gov (United States)

    Lisse, Carey M.

    2001-09-01

    The unexpected discovery of x-ray emission from Comet Hyakutake in March 1996 (Lisse et al. 1996) has produced a number of questions about the physical mechanism producing the radiation. The original detection and subsequent observations (Dennerl et al. 1997, Mumma et al. 1997, Krasnopolsky et al. 1998, Owens et al. 1998, Lisse et al. 1999) have shown that the very soft (best fit thermal bremsstrahlung model kT 0.2 keV) emission is due to an interaction between the solar wind and the comet's atmosphere. Using the results from the 15 comets detected to date in x-rays, we report on the latest results on cometary x-ray emission, including new results from Chandra and XMM. As-observed morphologies, spectra, and light curves will be discussed. Our emphasis will be on understanding the physical mechanism producing the emission, and using this to determine the nature of the cometary coma, the structure of the solar wind in the heliosphere, and the source of the local soft x-ray background. This work has been graciously supported by grants from the NASA Planetary Astronomy and Astrophysical Data Programs.

  5. Observational Trends of Cometary X-ray Emission

    Science.gov (United States)

    Lisse, C. M.

    2001-05-01

    The unexpected discovery of x-ray emission from Comet Hyakutake in March 1996 (Lisse et al. 1996) has produced a number of questions about the physical mechanism producing the radiation. The original detection and subsequent observations (Dennerl et al. 1997, Mumma et al. 1997, Krasnopolsky et al. 1998, Owens et al. 1998, Lisse et al. 1999, Lisse et a. 2001, Dennerl et al. 2001) have shown that the very soft (best fit thermal bremsstrahlung model kT = 0.23 keV) emission is due to an interaction between the solar wind and the comet's atmosphere. Using the results from the more than 15 comets detected to date in x-rays, we report on the latest results on cometary x-ray emission. Our emphasis will be on understanding the physical mechanism producing the emission, and using this to determine the nature of the cometary coma and solar wind flux. As-observed morphologies, spectra, and light curves will be discussed. We also report on the status of current cometary observations using the new powerful x-ray observatories Chandra and XMM. This work has been graciously supported by grants from the NASA Planetary Astronomy and Astrophysical Data Programs.

  6. Multiwavelength Photometric Imaging of X-Ray and EUV Emission from Comet P/Tempel-Tuttle 1998

    Science.gov (United States)

    Lisse, Carey M.

    2004-01-01

    The unexpected discovery of x-ray emission from Comet Hyakutake in March 1996 (Lisse et ai. 1996) has produced a number of questions about the physical mechanism producing the radiation. The original detection and subsequent observations (Dennerl et ai. 1997, Mumma et al. 1997, Krasnopolsky et al. 1998, Owens et al. 1998. Lisse et al. 1999) have shown that the very soft (best fit thermal bremsstrahlung model kT approx. 0.2 keV) emission is due to an interaction between the solar wind and the comet's atmosphere. Using the results fiom the 15 comets detected to date in x-rays, we report on the latest results on cometary x-ray emission, including new results from Chandra and XMM. As-observed morphologies, spectra, and light curves will be discussed. Our emphasis will be on understanding the physical mechanism producing the emission, and using this to determine the nature of the cometary coma, the structure of the solar wind in the heliosphere, and the source of the local soft x-ray background. This work has been graciously supported by grants from the NASA Planetary Astronomy and Astrophysical Data Programs.

  7. Cometary X-ray Emission: the View After the First Chandra Observations

    Science.gov (United States)

    Lisse, C. M.

    2002-01-01

    The unexpected discovery of x-ray emission from Comet Hyakutake in March 1996 (Lisse et al. 1996) has produced a number of questions about the physical mechanism producing the radiation. The original detection and subsequent observations (Dennerl et al. 1997, Mumma et al. 1997, Krasnopolsky et al. 1998, Owens et al. 1998, Lisse et al. 1999) have shown that the very soft (best fit thermal bremsstrahlung model kT ~ 0.2 keV) emission is due to an interaction between the solar wind and the comet's atmosphere. Using the results from the 15 comets detected to date in x-rays, we report on the latest results on cometary x-ray emission, including new results from Chandra and XMM. As-observed morphologies, spectra, and light curves will be discussed. Our emphasis will be on understanding the physical mechanism producing the emission, and using this to determine the nature of the cometary coma, the structure of the solar wind in the heliosphere, and the source of the local soft x-ray background. This work has been graciously supported by grants from the NASA Planetary Astronomy and Astrophysical Data Programs.

  8. A method simulating random magnetic field in interplanetary space by an autoregressive method

    International Nuclear Information System (INIS)

    Kato, Masahito; Sakai, Takasuke

    1985-01-01

    With an autoregressive method, we tried to generate the random noise fitting in with the power spectrum which can be analytically Fouriertransformed into an autocorrelation function. Although we can not directly compare our method with FFT by Owens (1978), we can only point out the following; FFT method should determine at first the number of data points N, or the total length to be generated and we cannot generate random data more than N. Because, beyond the NΔy, the generated data repeats the same pattern as below NΔy, where Δy = minimum interval for random noise. So if you want to change or increase N after generating the random noise, you should start the generation from the first step. The characteristic of the generated random number may depend upon the number of N, judging from the generating method. Once the prediction error filters are determined, our method can produce successively the random numbers, that is, we can possibly extend N to infinite without any effort. (author)

  9. Climate change and climate systems influence and control the atmospheric dispersion of desert dust: implications for human health

    Science.gov (United States)

    Griffin, Dale W.; Ragaini, Richard C.

    2010-01-01

    The global dispersion of desert dust through Earth’s atmosphere is greatly influenced by temperature. Temporal analyses of ice core data have demonstrated that enhanced dust dispersion occurs during glacial events. This is due to an increase in ice cover, which results in an increase in drier terrestrial cover. A shorter temporal analysis of dust dispersion data over the last 40 years has demonstrated an increase in dust transport. Climate systems or events such as the North Atlantic Oscillation, the Indian Ocean subtropical High, Pacific Decadal Oscillation, and El Nino-Sothern Oscillation are known to influence global short-term dust dispersion occurrence and transport routes. Anthropogenic influences on dust transport include deforestation, harmful use of topsoil for agriculture as observed during the American Dust Bowl period, and the creation of dry seas (Aral Sea) and lakes (Lake Owens in California and Lake Chad in North Africa) through the diversion of source waters (for irrigation and drinking water supplies). Constituents of desert dust both from source regions (pathogenic microorganisms, organic and inorganic toxins) and those scavenged through atmospheric transport (i.e., industrial and agricultural emissions) are known to directly impact human and ecosystem health. This presentation will present a review of global scale dust storms and how these events can be both a detriment and benefit to various organisms in downwind environments.

  10. VLBI observations of the quasars CTD20 (0234+285), OJ248 (0827+243), and 4C19.44 (1354+195), and the millimeter-x-ray connection

    International Nuclear Information System (INIS)

    Marscher, A.P.; Broderick, J.J.

    1983-01-01

    We have obtained limited VLBI data on the quasars CTD20, OJ248, and 4C19.44 at 2.8 cm. CTD20 was also observed at 6 and 18 cm. All three sources contain multicomponent structure, and rather large fractions of the 2.8-cm flux densities arise in unresolved regions. All of the radio flux density of CTD20 originates in compact components. 4C19.44 is dominated at low frequencies by a steep-spectrum component which exceeds about 7 mas in size. Above 2 GHz the spectrum is flat and variable owing to several compact components. CTD20 and OJ248 belong to a sample of millimeter-excess quasars which were shown by Owen, Helfand, and Spangler to have highly predictable ratios of 90 GHz to 2-keV flux densities. A self-Compton explanation of this relationship is supported by the existence of unresolved radio components. However, the rapid 90-GHz variability of OJ248 and other quasars with strong millimeter emission should destroy the observed tight correlation except under special circumstances. A synchrotron origin of the radio-to-x-ray emission requires that any variations in the radio should be time delayed relative to the x ray

  11. Deconstruction in Architecture – Continuous Translation through an Open Project

    Directory of Open Access Journals (Sweden)

    Jovana Tošić

    2017-04-01

    Full Text Available Jacques Derrida developed deconstruction as a way of thinking which constantly examines the nature and possibilities of meaning. The paper analyses spatial-economic, cultural and social context in which deconstructive discourse was translated into architectural discourse. Translation between these two discourses happens vice versa. Deconstructivism emphasizes the formal properties of architecture, like postmodernism, which is the subject of exploration by architects such as Coop Himmelblau, Frank Gehry, Eric Owen Moss, etc. According to some interpretations, the only solution for deconstruction in architectural work is incompleteness, an open project which represents never-ending deconstruction. There are different solutions for open projects, and the article highlights projects by architects mentioned above, which seems to manage to achieve continuous deconstruction in practice.   Article received: December 23, 2016; Article accepted: January 18, 2017; Published online: April 20, 2017 Original scholarly paper How to cite this paper: Tošić, Jovana. "Deconstruction in Architecture – Continuous Translation through an Open Project." AM Journal of Art and Media Studies 20 (2017: 99-107. doi: 10.25038/am.v0i12.170

  12. How to survive climate change and still run a thriving business.

    Science.gov (United States)

    Lowitt, Eric

    2014-04-01

    Climate change presents clear and pressing threats to business--materials and product shortages, price volatility, legal bans or consumer backlash, and damaged transportation infrastructure, to name just a few. But there are opportunities as well. Lowitt, a consultant in the sustainability field, has developed a series of detailed checklists that will help smart managers reduce operational, regulatory, and reputational risk while finding new ways to cut costs, improve performance, enhance customer relationships, and otherwise increase competitiveness. The checklist recommendations, tested and refined through Lowitt's research into and work with firms including Coca-Cola, GE, and Owens Corning, cover four broad areas in the product life cycle: sourcing, manufacturing, distribution, and consumption. Actions range from educating and incentivizing employees to use climate change-conscious behavior to measuring and reporting key metrics to determining when alternative materials, methods, sites, or contract partners may be called for. Like any such tool, the checklists don't provide a one-size-fits-all plan. Rather, they equip executives to customize their strategies according to factors such as their goods and services, risk tolerance, customer needs, and reliance on third parties throughout the value chain.

  13. Design, Synthesis and Fungicidal Activities of Some Novel Pyrazole Derivatives

    Directory of Open Access Journals (Sweden)

    Xue-Ru Liu

    2014-09-01

    Full Text Available In order to discover new compounds with good fungicidal activities, 32 pyrazole derivatives were designed and synthesized. The structures of the target compounds were confirmed by 1H-NMR, 13C-NMR, and high-resolution electrospray ionization mass spectrometry (HR-ESI-MS, and their fungicidal activities against Botrytis cinerea, Rhizoctonia solani Kuhn, Valsa mali Miyabe et Yamada, Thanatephorus cucumeris (Frank Donk, Fusarium oxysporum (S-chl f.sp. cucumerinum Owen, and Fusarium graminearum Schw were tested. The bioassay results indicated that most of the derivatives exhibited considerable antifungal activities, especially compound 26 containing a p-trifluoromethyl- phenyl moiety showed the highest activity, with EC50 values of 2.432, 2.182, 1.787, 1.638, 6.986, and 6.043 μg/mL against B. cinerea, R. solani, V. mali, T. cucumeris, F. oxysporum, and F. graminearum, respectively. Moreover, the activities of compounds such as compounds 27–32 were enhanced by introducing isothiocyanate and carboxamide moieties to the 5-position of the pyrazole ring.

  14. Stellar activity for every TESS star in the Southern sky

    Science.gov (United States)

    Howard, Ward S.; Law, Nicholas; Fors, Octavi; Corbett, Henry T.; Ratzloff, Jeff; del Ser, Daniel

    2018-01-01

    Although TESS will search for Earths around more than 200,000 nearby stars, the life-impacting superflare occurrence of these stars remains poorly characterized. We monitor long-term stellar flare occurrence for every TESS star in the accessible sky at 2-minute cadence with the CTIO-based Evryscope, a combination of twenty-four telescopes, together giving instantaneous sky coverage of 8000 square degrees. In collaboration with Owens Valley Long Wavelength Array (LWA) all-sky monitoring, Evryscope also provides optical counterparts to radio flare, CME, and exoplanet-magnetosphere stellar activity searches. A Northern Evryscope will be installed at Mount Laguna Observatory, CA in collaboration with SDSU later this year, enabling stellar activity characterization for the full TESS target list and both continuous viewing zones, as well as providing 100% overlap with LWA radio activity. Targets of interest (e.g. Proxima Cen, TRAPPIST-1) are given special focus. We are currently sensitive to stellar activity down to 1% precision at g' ~ 10 and about 0.2 of a magnitude at g' ~ 15. With 2-minute cadence and a projected 5-year timeline, with 2+ years already recorded, we present preliminary results from an activity characterization of every Southern TESS target.

  15. Photogrammetric Analysis of Rotor Clouds Observed during T-REX

    Science.gov (United States)

    Romatschke, U.; Grubišić, V.

    2017-12-01

    Stereo photogrammetric analysis is a rarely utilized but highly valuable tool for studying smaller, highly ephemeral clouds. In this study, we make use of data that was collected during the Terrain-induced Rotor Experiment (T-REX), which took place in Owens Valley, eastern California, in the spring of 2006. The data set consists of matched digital stereo photographs obtained at high temporal (on the order of seconds) and spatial resolution (limited by the pixel size of the cameras). Using computer vision techniques we have been able to develop algorithms for camera calibration, automatic feature matching, and ultimately reconstruction of 3D cloud scenes. Applying these techniques to images from different T-REX IOPs we capture the motion of clouds in several distinct mountain wave scenarios ranging from short lived lee wave clouds on an otherwise clear sky day to rotor clouds formed in an extreme turbulence environment with strong winds and high cloud coverage. Tracking the clouds in 3D space and time allows us to quantify phenomena such as vertical and horizontal movement of clouds, turbulent motion at the upstream edge of rotor clouds, the structure of the lifting condensation level, extreme wind shear, and the life cycle of clouds in lee waves. When placed into context with the existing literature that originated from the T-REX field campaign, our results complement and expand our understanding of the complex dynamics observed in a variety of different lee wave settings.

  16. Synthesis of Polydimethylsiloxane-Modified Polyurethane and the Structure and Properties of Its Antifouling Coatings

    Directory of Open Access Journals (Sweden)

    Zhan-Ping Zhang

    2018-04-01

    Full Text Available Polydimethylsiloxane (PDMS could be used to improve the antifouling properties of the fouling release coatings based on polyurethane (PU. A series of polydimethylsiloxane-modified polyurethane coatings were synthesized with various PDMS contents, using the solvent-free method. The effects of PDMS content and seawater immersion on the chain structure and surface morphology were investigated by confocal laser scanning microscopy (CLSM, atomic force microscopy (AFM, Fourier transform infrared spectroscopy (FTIR, differential scanning calorimetry (DSC, thermogravimetric analysis (TGA and X-ray diffraction (XRD. Based on the measurements of contact angles of deionized water and diiodomethane, surface free energies of the coatings were estimated according to the Owens two-liquid method. The PDMS-modified polyurethane exhibited lower surface free energy and a lower glass transition temperature than polyurethane. The presence of PDMS increased the degree of microphase separation, and enhanced the water resistance of the coatings. The optimum amount of PDMS reduced the elastic modulus and increased the ductility of the coating. The presence of PDMS benefited the removal of weakly attached organisms. Panel tests in the Yellow Sea demonstrated the antifouling activity of the PDMS-modified polyurethane.

  17. Re-introduction of tule elk to Point Reyes National Seashore, California, USA

    Science.gov (United States)

    Gogan, Peter J.; McCrea A. Cobb,; Gates, Natalie B.; Barrett, Reginald H.; Soorae, Pritpal S.

    2013-01-01

    Tule elk (Cervus elaphus nannodes), a subspecies endemic to California, was historically found in large herds throughout much of central and coastal California. Market hunting during the California Gold Rush decimated these herds, and by 1895, only two to 10 elk remained. This remnant group was protected and served as the source for early relocation efforts (McCullough, 1971). Early efforts were generally unsuccessful but did establish a herd in California’s Owens Valley, outside their historical range, in 1933. The herd grew rapidly and supported six controversial hunts between 1943 and 1969. In an effort to limit hunting, concerned preservationists formed the Committee for the Preservation of Tule Elk in 1960. Public pressure resulted in the California State Legislature passing a law in 1971 that halted hunting until either state-wide numbers reached 2,000, or no further unoccupied elk habitat existed. This law prompted the California Department of Fish and Game to begin reintroducing tule elk throughout their former range. In 1976, the U.S. Congress passed a resolution that concurred with state law and directed federal agencies to make lands available for reintroductions within the subspecies’ historical range. Point Reyes National Seashore was identified as a potential translocation site.

  18. The Neural Correlates of the Body-Object Interaction Effect in Semantic Processing

    Directory of Open Access Journals (Sweden)

    Ian Scott Hargreaves

    2012-02-01

    Full Text Available The semantic richness dimension referred to as body-object interaction (BOI measures perceptions of the ease with which people can physically interact with words’ referents. Previous studies have shown facilitated lexical and semantic processing for words rated high in BOI (e.g., belt than for words rated low in BOI (e.g., sun (e.g., Siakaluk, Pexman, Sears, Wilson, Locheed, & Owen, 2008b. These BOI effects have been taken as evidence that embodied information is relevant to word recognition. However, to date there is no evidence linking BOI manipulations to differences in the utilization of perceptual or sensorimotor areas of the brain. The current study used event-related fMRI to examine the neural correlates of BOI in a semantic categorization task (SCT. Sixteen healthy adults participated. Results showed that high BOI words were associated with activation in the left inferior parietal lobule (supramarginal gyrus, BA 40, a sensory association area involved in kinesthetic memory. These results provide evidence that the BOI dimension captures sensorimotor information, and that this contributes to semantic processing.

  19. Preliminary physico-chemical results obtained on water using new data acquisition systems for deep wells

    International Nuclear Information System (INIS)

    Vinson, J.M.; Peyrus, J.C.

    1984-02-01

    Data acquisition systems recently developed in the context of research on deep storage facilities have provided with an initial set of interesting observations for the physico-chemical study of boreholes. It is possible to make correlations between the chemical compositions of water, pH and the nature of the substrate. The sampling done at Auriat with a Gerhardt-Owen probe shows the variability in the composition of water as a function of depth. The variation in calcium content, following that of pH, is particularly notable. Examination of pH measurements is of particular interest. A general gradient correlates exactly with the nature of the substrate. Whereas steel piping has a very alkaline pH, distinct pH values correspond to the two types of granite substrate. In this general gradient, series of disturbances can be seen which correspond perfectly to fracturation zones or large fractures. These most promising preliminary results lead to believe that in situ physico-chemical measurements should be continued and developed with a view to improved evaluation of the safety of deep storage facilities

  20. Development of New Correlation and Assessment of Correlations for Two-Phase Pressure Drop in Rectangular Microchannels

    International Nuclear Information System (INIS)

    Choi, Chi Woong; Yu, Dong In; Kim, Moo Hwan

    2010-01-01

    There are two kinds of models in two-phase pressured drop; homogeneous flow model and separated flow model. Many previous researchers have developed correlations for two-phase pressure drop in a microchannel. Most correlations were modified Lockhart and Martinelli's correlation, which was based on the separated flow model. In this study, experiments for adiabatic liquid water and nitrogen gas flow in rectangular microchannels were conducted to investigate two-phase pressure drop in the rectangular microchannels. Two-phase frictional pressure drop in the rectangular microchannels is highly related with flow regime. Homogeneous model with six two-phase viscosity models: Owen(21)'s, MacAdams(22)'s, Cicchitti et al.(23)'s, Dukler et al.(24)'s, Beattie and Whalley(25)'s, Lin et al.(26)'s models and six separated flow models: Lockhart and Martinelli(27)'s, Chisholm(31)'s, Zhang et al.(15)'s, Lee and Lee(5)'s, Moriyama and Inue(4)'s, Qu and Mudawar(8)'s models were assessed with our experimental data. The best two-phase viscosity model is Beattie and Whalley's model. The best separated flow model is Qu and Mudawar's correlation. Flow regime dependency in both homogeneous and separated flow models was observed. Therefore, new flow pattern based correlations for both homogeneous and separated flow models were individually proposed

  1. Validity of resting energy expenditure predictive equations before and after an energy-restricted diet intervention in obese women.

    Directory of Open Access Journals (Sweden)

    Jonatan R Ruiz

    Full Text Available BACKGROUND: We investigated the validity of REE predictive equations before and after 12-week energy-restricted diet intervention in Spanish obese (30 kg/m(2>BMI<40 kg/m(2 women. METHODS: We measured REE (indirect calorimetry, body weight, height, and fat mass (FM and fat free mass (FFM, dual X-ray absorptiometry in 86 obese Caucasian premenopausal women aged 36.7±7.2 y, before and after (n = 78 women the intervention. We investigated the accuracy of ten REE predictive equations using weight, height, age, FFM and FM. RESULTS: At baseline, the most accurate equation was the Mifflin et al. (Am J Clin Nutr 1990; 51: 241-247 when using weight (bias:-0.2%, P = 0.982, 74% of accurate predictions. This level of accuracy was not reached after the diet intervention (24% accurate prediction. After the intervention, the lowest bias was found with the Owen et al. (Am J Clin Nutr 1986; 44: 1-19 equation when using weight (bias:-1.7%, P = 0.044, 81% accurate prediction, yet it provided 53% accurate predictions at baseline. CONCLUSIONS: There is a wide variation in the accuracy of REE predictive equations before and after weight loss in non-morbid obese women. The results acquire especial relevance in the context of the challenging weight regain phenomenon for the overweight/obese population.

  2. Charged particle accelerator

    International Nuclear Information System (INIS)

    Arakawa, Kazuo.

    1969-01-01

    An accelerator is disclosed having a device which permits the electrodes of an accelerator tube to be readily conditioned in an uncomplicated manner before commencing operation. In particle accelerators, it is necessary to condition the accelerator electrodes before a stable high voltage can be applied. Large current accelerators of the cockcroft-walton type require a complicated manual operation which entails applying to the electrodes a low voltage which is gradually increased to induce a vacuum discharge and then terminated. When the discharge attains an extremely low level, the voltage is again impressed and again raised to a high value in low current type accelerators, a high voltage power supply charges the electrodes once to induce discharge followed by reapplying the voltage when the vacuum discharge reaches a low level, according to which high voltage is automatically applied. This procedure, however, requires that the high voltage power supply be provided with a large internal resistance to limit the current to within several milliamps. The present invention connects a high voltage power supply and an accelerator tube through a discharge current limiting resistor wired in parallel with a switch. Initially, the switch is opened enabling the power supply to impress a voltage limited to a prescribed value by a suitably chosen resistor. Conditioning is effected by allowing the voltage between electrodes to increase and is followed by closing the switch through which high voltage is applied directly to the accelerator for operation. (K.J. Owens)

  3. Child health in the workplace: the Supreme Court in Hammer v. Dagenhart (1918).

    Science.gov (United States)

    Berger, L R; Johansson, S R

    1980-01-01

    Exploitation of children in the labor force at the beginning of this century gave rise to a national campaign leading to congressional passage of the Keating-Owen Act in 1916. The act prohibited from interstate commerce goods produced in factories or mines that employed children who either were under fourteen years of age or who were under sixteen years of age and worked more than eight hours a day. Despite its popular support, the Act was declared unconstitutional by the Supreme Court in Hammer v. Dagenhart (1918). The Court's decision involved several major issues: interpretation of the Fifth and Fourteenth Amendments to the Constitution, freedom of contract, police power of the states, and the interstate commerce clause. Review of previous Court decisions suggests that the justices were on less than solid legal ground in reaching their decision. Examination of the historical context of the decision, however, suggests other factors that may have played a more important role than judicial precedents. The debate prompted by Hammer v. Dagenhart has much relevance to such current issues as young agricultural workers, sex discrimination in industry, and the powers of the federal government vis-a-vis states and individual citizens.

  4. Hadroproduction of charmonium Χ states at the SPS

    International Nuclear Information System (INIS)

    Lemoigne, Y.

    1988-06-01

    The observation of hadroproduced charmonium Χ states requires a good resolution to disentangle states of similar masses (45 MeV of difference for masses larger than 3500 MeV). The WA11 experiment was able to distinguish the two Χ(3510) and Χ(3555) states, measure their cross-section in π-beryllium at 185 GeV/c and give a ratio of contribution of this to J/Ψ production (17.7 % and 12.8 % respectively). A refined analysis of Χ-states events has shown different processes in the π-production of these states. At 185 GeV/c, the Χ(3555) comes mainly from gluon-gluon fusion, but the Χ(3510) is equally produced by quark-antiquark fusion and gluon-gluon fusion. One finds that different graphs can be envisaged, both in colour conservation as well as in colour evaporation, to contribute to charmonium state production given by simple counting rules. Using our data at 185 GeV/c and the usual structure function (like the DUKE-OWEN's ones), we are able to compute the J/Ψ, Χ 1 , and Χ 2 π-production at any other SPS energy. This calculation gives values in agreement with results from the Ω group (for J/Ψ) and the ''GAMS'' group (for Χ), at 40 GeV/c [fr

  5. Investigation of Plasma Treatment on Micro-Injection Moulded Microneedle for Drug Delivery

    Directory of Open Access Journals (Sweden)

    Karthik Nair

    2015-10-01

    Full Text Available Plasma technology has been widely used to increase the surface energy of the polymer surfaces for many industrial applications; in particular to increase in wettability. The present work was carried out to investigate how surface modification using plasma treatment modifies the surface energy of micro-injection moulded microneedles and its influence on drug delivery. Microneedles of polyether ether ketone and polycarbonate and have been manufactured using micro-injection moulding and samples from each production batch have been subsequently subjected to a range of plasma treatment. These samples were coated with bovine serum albumin to study the protein adsorption on these treated polymer surfaces. Sample surfaces structures, before and after treatment, were studied using atomic force microscope and surface energies have been obtained using contact angle measurement and calculated using the Owens-Wendt theory. Adsorption performance of bovine serum albumin and release kinetics for each sample set was assessed using a Franz diffusion cell. Results indicate that plasma treatment significantly increases the surface energy and roughness of the microneedles resulting in better adsorption and release of BSA.

  6. The role of developmental levels in examining the effect of subject types on the production of auxiliary is in young english-speaking children.

    Science.gov (United States)

    Guo, Ling-Yu; Owen Van Horne, Amanda J; Tomblin, J Bruce

    2011-12-01

    Prior work (Guo, Owen, & Tomblin, 2010) has shown that at the group level, auxiliary is production by young English-speaking children was symmetrical across lexical noun and pronominal subjects. Individual data did not uniformly reflect these patterns. On the basis of the framework of the gradual morphosyntactic learning (GML) hypothesis, the authors tested whether the addition of a theoretically motivated developmental measure, tense productivity (TP), could assist in explaining these individual differences. Using archival data from 20 children between age 2;8 and 3;4 (years;months), the authors tested the ability of 3 developmental measures (TP; finite verb morphology composite, FVMC; mean length of utterance, MLU) to predict use of auxiliary is with different subject types. TP, but not MLU or FVMC, significantly improved model fit. Children with low TP scores produced auxiliary is more accurately with pronominal subjects than with lexical subjects. The facilitative effect of pronominal subjects on the production of auxiliary is, however, was not found in children with high TP scores. The finding that the effect of subject types on the production accuracy of auxiliary is changed with children's TP is consistent with the GML hypothesis.

  7. Design and characterization of the Large-aperture Experiment to Detect the Dark Age (LEDA) radiometer systems

    Science.gov (United States)

    Price, D. C.; Greenhill, L. J.; Fialkov, A.; Bernardi, G.; Garsden, H.; Barsdell, B. R.; Kocz, J.; Anderson, M. M.; Bourke, S. A.; Craig, J.; Dexter, M. R.; Dowell, J.; Eastwood, M. W.; Eftekhari, T.; Ellingson, S. W.; Hallinan, G.; Hartman, J. M.; Kimberk, R.; Lazio, T. Joseph W.; Leiker, S.; MacMahon, D.; Monroe, R.; Schinzel, F.; Taylor, G. B.; Tong, E.; Werthimer, D.; Woody, D. P.

    2018-05-01

    The Large-Aperture Experiment to Detect the Dark Age (LEDA) was designed to detect the predicted O(100) mK sky-averaged absorption of the Cosmic Microwave Background by Hydrogen in the neutral pre- and intergalactic medium just after the cosmological Dark Age. The spectral signature would be associated with emergence of a diffuse Lyα background from starlight during `Cosmic Dawn'. Recently, Bowman et al. (2018) have reported detection of this predicted absorption feature, with an unexpectedly large amplitude of 530 mK, centered at 78 MHz. Verification of this result by an independent experiment, such as LEDA, is pressing. In this paper, we detail design and characterization of the LEDA radiometer systems, and a first-generation pipeline that instantiates a signal path model. Sited at the Owens Valley Radio Observatory Long Wavelength Array, LEDA systems include the station correlator, five well-separated redundant dual polarization radiometers and backend electronics. The radiometers deliver a 30-85 MHz band (16 z < 34) and operate as part of the larger interferometric array, for purposes ultimately of in situ calibration. Here, we report on the LEDA system design, calibration approach, and progress in characterization as of January 2016. The LEDA systems are currently being modified to improve performance near 78 MHz in order to verify the purported absorption feature.

  8. Studies on the relationship between Pitzer's equation and medium effect: the system of HCl + H{sub 2}SO{sub 4} in {l_brace}0.06455C{sub 2}H{sub 5}OH + 0.93545H{sub 2}O{r_brace}

    Energy Technology Data Exchange (ETDEWEB)

    Lu Xingmei E-mail: lxmqt@sohu.com; Xu Weiguo; Chang Xiaohong; Lu Dianzhen; Yang Jiazhen

    2004-03-01

    The second ionization constant of sulfuric acid in mixed solvent, K{sub 2}, was determined by e.m.f. of cell without liquid junction: (Pt,H{sub 2}(101.325 kPa) vertical bar HCl(m{sub 1}),H{sub 2}SO{sub 4}(m{sub 2}),{l_brace}ethanol(x=0.06455)+water(x=0.93545){r_brace} vertical bar AgCl-Ag))over the temperatures (278.15 to 318.15) K, where x is mole fraction. Combining Owen's definition of medium effect with Pitzer's equations, the values of combination parameters: ({lambda}{sub nHS}+{lambda}{sub nCl}-{lambda}{sub nS})+(3/2)m{sub n}({mu}{sub nnHS}+{mu}{sub nnC=} l-{mu}{sub nnS}),(1/2)({xi}{sub nHHS}+{xi}{sub nHCl}-{xi}{sub nHS}), that represent the interactions between ions and ethanol were obtained at 298.15 K.

  9. Hormonal (Cortical-Gonadotropic Axis) and Physical Changes With Two Years Intense Exercise Training in Elite Young Soccer Players.

    Science.gov (United States)

    Hammami, Mohamed Ali; Ben Abderrahman, Abderraouf; Hackney, Anthony C; Kebsi, Wiem; Owen, Adam L; Nebigh, Amar; Racil, Ghazi; Tabka, Zouhair; Zouhal, Hassane

    2017-09-01

    Hammami, MA, Ben Abderrahman, A, Hackney, AC, Kebsi, W, Owen, AL, Nebigh, A, Racil, G, Tabka, Z, and Zouhal, H. Hormonal (cortical-gonadotropic axis) and physical changes with two years intense exercise training in elite young soccer players. J Strength Cond Res 31(9): 2388-2397, 2017-The aim of this study was to investigate the effects of 2 soccer-training seasons on physical fitness and hormone concentrations in elite youth soccer players. Twenty male elite soccer players (SP, age 14.5 ± 0.4 years) and 20 male control subjects (CS, age 14.3 ± 0.3 years) participated in the study. Anthropometric measurements, aerobic (Yo-Yo Intermittent Recovery Test Level 1 [YYIRT1]) and anaerobic soccer relevant performances (jump and sprint tests), blood testosterone (T), cortisol (C), sex hormone binding globulin (SHBG), and T/C ratio were assessed 5 times (from T0 to T4) during 2 competitive seasons. Significant differences from basal values (Δ) of T, SHBG, and C between SP and CS were observed (p soccer players group compared with controls. Our findings also show that the T concentrations and power performance outcomes co-vary positively over the 2 soccer seasons in soccer players.

  10. Fuel element for a nuclear reactor

    International Nuclear Information System (INIS)

    Tanihiro, Yasunori; Sumita, Isao.

    1970-01-01

    An improved fuel element of the heat pipe type is disclosed in which the fuel element itself is given a heat pipe structure and filled with a coated particle fuel at the section thereof having a capillary tube construction, whereby the particular advantages of heat pipes and coated fuels are combined and utilized to enhance thermal control and reactor efficiency. In an embodiment, the fuel element of the present invention is filled at its lower capillary tube section with coated fuel and at its upper section with a granurated neutron absorber. Both sections are partitioned from the central shaft by a cylindrically shaped wire mesh defining a channel through which the working liquid is vaporized from below and condensed by the coolant external to the fuel element. If the wire mesh is chosen to have a melting point lower than that of the fuel but higher than that of the operating temperature of the heat pipe, the mesh will melt and release the neutron absorbing particles should hot spots develop, thus terminating fission. (Owens, K. J.)

  11. Lorenz Oken and Naturphilosophie in Jena, Paris and London.

    Science.gov (United States)

    Breidbach, Olaf; Ghiselin, Michael T

    2002-01-01

    Although Lorenz Oken is a classic example of Naturphilosophie as applied to biology, his views have been imperfectly understood. He is best viewed as a follower of Schelling who consistently attempted to apply Schelling's ideas to biological data. His version of Naturphilosophic, however, was strongly influenced by older pseudoscience traditions, especially alchemy and numerology as they had been presented by Robert Fludd, whose works were current in Jena and available to him. According to those influences, parts of Oken's philosophical conception were communicable even in a non-idealistic scientific culture, for example in Paris, where Oken met Etienne Geoffroy Saint-Hilaire. Geoffroy however was embedded in a French intellectual tradition, and the correspondence between his views and those of Oken was only superficial. The English anatomist Richard Owen attempted to incorporate the views of Oken and Geoffroy within his own, idiosyncratic system. Although Darwin knew of Oken's ideas, it was Geoffroy who really affected his evolutionary biology, and any influence of Oken must have been attenuated to the point of triviality.

  12. ‘What better excuse for a real adventure’: History, Memory and Tourism on the Kokoda Track

    Directory of Open Access Journals (Sweden)

    Jo Hawkins

    2013-10-01

    Full Text Available Rapidly growing numbers of Australian tourists visiting overseas battle sites associated with Australian military history have been met with enthusiastic academic interest by historians, yet the vast majority of studies focus on Gallipoli, rather than the Kokoda Track. Prior to 2001, few tourists had undertaken a journey along the narrow jungle pathway, which winds 96km through the Owen Stanley Ranges in Papua New Guinea. Just over a decade later, the track supports a competitive tourism industry, dominated by Australian companies, and attracts thousands of trekkers each year. This paper applies an interdisciplinary methodology to better understand the duality of locations of battlefield tourism as sites of commemoration and, unavoidably, sites of commerce. A survey of 107 trekkers suggests that, in addition to an expression of national identity, the mythology associated with the Kokoda Track has been appropriated by Australian tourists to represent individualistic goals of personal development and transformation: meanings that originate from the site’s history but extend beyond it.

  13. Multivariate analysis of attachment of biofouling organisms in response to material surface characteristics.

    Science.gov (United States)

    Gatley-Montross, Caitlyn M; Finlay, John A; Aldred, Nick; Cassady, Harrison; Destino, Joel F; Orihuela, Beatriz; Hickner, Michael A; Clare, Anthony S; Rittschof, Daniel; Holm, Eric R; Detty, Michael R

    2017-12-29

    Multivariate analyses were used to investigate the influence of selected surface properties (Owens-Wendt surface energy and its dispersive and polar components, static water contact angle, conceptual sign of the surface charge, zeta potentials) on the attachment patterns of five biofouling organisms (Amphibalanus amphitrite, Amphibalanus improvisus, Bugula neritina, Ulva linza, and Navicula incerta) to better understand what surface properties drive attachment across multiple fouling organisms. A library of ten xerogel coatings and a glass standard provided a range of values for the selected surface properties to compare to biofouling attachment patterns. Results from the surface characterization and biological assays were analyzed separately and in combination using multivariate statistical methods. Principal coordinate analysis of the surface property characterization and the biological assays resulted in different groupings of the xerogel coatings. In particular, the biofouling organisms were able to distinguish four coatings that were not distinguishable by the surface properties of this study. The authors used canonical analysis of principal coordinates (CAP) to identify surface properties governing attachment across all five biofouling species. The CAP pointed to surface energy and surface charge as important drivers of patterns in biological attachment, but also suggested that differentiation of the surfaces was influenced to a comparable or greater extent by the dispersive component of surface energy.

  14. Limits on Arcminute-Scale Cosmic Microwave Background Anisotropy at 28.5 GHz

    Science.gov (United States)

    Holzapfel, W. L.; Carlstrom, J. E.; Grego, L.; Holder, G.; Joy, M.; Reese, E. D.

    2000-01-01

    We have used the Berkeley-Illinois-Maryland Association (BIMA) millimeter array outfitted with sensitive centimeter-wave receivers to search for cosmic microwave background (CMB) anisotropies on arcminute scales. The interferometer was placed in a compact configuration that produces high brightness sensitivity, while providing discrimination against point sources. Operating at a frequency of 28.5 GHz, the FWHM primary beam of the instrument is approximately 6'.6. We have made sensitive images of seven fields, four of which where chosen specifically to have low infrared dust contrast and to be free of bright radio sources. Additional observations with the Owens Valley Radio Observatory (OVRO) millimeter array were used to assist in the location and removal of radio point sources. Applying a Bayesian analysis to the raw visibility data, we place limits on CMB anisotropy flat-band power of Q(sub flat) = 5.6(sub -5.6)(exp 3.0) microK and Q(sub flat) < 14.1 microK at 68% and 95% confidence, respectively. The sensitivity of this experiment to flat-band power peaks at a multipole of I = 5470, which corresponds to an angular scale of approximately 2'. The most likely value of Q(sub flat) is similar to the level of the expected secondary anisotropies.

  15. Limits on Arcminute Scale Cosmic Microwave Background Anisotropy with the BIMA Array

    Science.gov (United States)

    Holzapfel, W. L.; Carlstrom, J. E.; Grego, L.; Holder, G. P.; Joy, M. K.; Reese, E. D.; Rose, M. Franklin (Technical Monitor)

    2000-01-01

    We have used the Berkeley-Illinois-Maryland-Association (BIMA) millimeter array outfitted with sensitive cm-wave receivers to search for Cosmic Microwave Background (CMB) anisotropies on arcminute scales. The interferometer was placed in a compact configuration which produces high brightness sensitivity, while providing discrimination against point sources. Operating at a frequency of 28.5 GHz, the FWHM primary beam of the instrument is 6.6 arcminutes. We have made sensitive images of seven fields, five of which where chosen specifically to have low IR dust contrast and be free of bright radio sources. Additional observations with the Owens Valley Radio Observatory (OVRO) millimeter array were used to assist in the location and removal of radio point sources. Applying a Bayesian analysis to the raw visibility data, we place limits on CMB anisotropy flat-band power Q_flat = 5.6 (+3.0, -5.6) uK and Q_flat < 14.1 uK at 68% and 95% confidence. The sensitivity of this experiment to flat band power peaks at a multipole of l = 5470, which corresponds to an angular scale of approximately 2 arcminutes The most likely value of Q_flat is similar to the level of the expected secondary anisotropies.

  16. Centrifugal gas separator

    International Nuclear Information System (INIS)

    Sakurai, Mitsuo.

    1970-01-01

    A centrifugal gas separator of a highly endurable construction and with improved gas sealing qualities utilizes a cylincrical elastic bellows or similar system in cooperation with a system of dynamic pressure operable gas seals as means for removing separated gases from the interior of the rotor drum, collecting the separated gases in their respective separated gas chambers defined by the corresponding bellows and their supporting stationary wall members, gas seals and rotor end caps, and means for discharging to the exterior of the surrounding cylindrical wall member the gaseous components from their respective separated gas chambers. In the vicinity of the rotary drum motor is a mixed gas chamber and means for providing the gas mixture along a co-axial passage into the rotary drum chamber. Orifices are bored into the end caps of the rotary drum to direct the separated gases into the aforementioned separated gas chambers which, through the action of the gas seals, freely slide upon the rotating drum to collect and thereafter discharge the thus separated gases. Therefore, according to the present invention, helium gas used to prevent separated gas remixture is unnecessary and, furthermore, the gas seals and elastic bellows means provide an air-tight seal superior to that of the contact sealing system of the former art. (K.J. Owens)

  17. History of trichinellosis surveillance

    Directory of Open Access Journals (Sweden)

    Blancou J.

    2001-06-01

    Full Text Available The origin of trichinellosis, which existed in ancient times as testified by the discovery of parasite larvae on an Egyptian mummy, unfolded in several stages: discovery of encapsulated larvae (in the 1820s, identification and scientific description of these larvae (Paget Owen, 1835, followed by experimental infestations of animals (dogs, pigs, rabbits, mice or of humans as from 1850.The main occurrences of trichinellosis were followed with particular attention in Europe (Germany, Denmark, France, etc. and in the United States of America at the end of the XIXth century. They affected numerous domestic animal species (pigs, horses, etc. or wildlife and humans. Germany paid the heaviest toll with regard to the disease in humans, between 1860 and 1880, with several thousands of patients and more than 500 deaths.Different trichinellosis surveillance systems were set up in the relevant countries in the 1860s. In humans, this surveillance was carried out on affected living patients by a biopsy of the biceps muscles and subsequently by an analysis of eosinophilia (1895. In animals, surveillance was for a long time solely based on postmortem examination of the muscles of the affected animals. This method was used for the first time in 863 in Germany, and from the 1 890s, on several hundreds of thousands of pigs in Europe or in the United States of America.

  18. Depositional environments and oil potential of Jurassic/Cretaceous source rocks within the Seychelles microcontinent

    Energy Technology Data Exchange (ETDEWEB)

    Plummer, P.S.; Joseph, P.R.; Samson, P.J. [Seychelles National Oil Co., Mahe (Seychelles)

    1998-12-31

    The Seychelles microcontinent became isolated between the Somali, Mascarene and Arabian basins of the Indian Ocean as a result of the Mesozoic fragmentation of Gondwana. Major rifting events occurred during the Triassic-Middle Jurassic and Late Cretaceous (Cenomanian-Santonian and Maastrichtian) during which shaly source rock facies accumulated in principally marginal marine/deltaic environments. Between these times, post-rift passive margin deposition within restricted to open marine environments produced shaly source rocks during late Middle Jurasic-Early Cretaceous, Campanian-Maastrichtian and Paleocene times. Recent geochemical analysis of cuttings from the Seagull Shoals-1 well has identified an oil-prone liptinitic (Type II) coaly shale within early Middle Jurassic abandoned deltaic deposits. This coaly source rock is regionally developed, having also been identified in the Majunja and Morondava basins of Madagascar. Oil-prone Type II organic matter has also been identified in the Owen Bank A-1 well within restricted marine shales of late Middle Jurassic age. These shales are part of a thick post-rift source rock sequence that extends into the Early Cretaceous and is in part correlative with the proven Late Jurassic Uarandab Shale of Somalia. Analysis of Campanian marine shales from Reith Bank-1 well identified significant dilution of total organic carbon content in composite, compared to picked, well cuttings samples. This finding supports a published inference that these post-rift shales have source rock potential. (author)

  19. An Introductory Review of Parallel Independent Component Analysis (p-ICA and a Guide to Applying p-ICA to Genetic Data and Imaging Phenotypes to Identify Disease-Associated Biological Pathways and Systems in Common Complex Disorders

    Directory of Open Access Journals (Sweden)

    Godfrey D Pearlson

    2015-09-01

    Full Text Available Complex inherited phenotypes, including those for many common medical and psychiatric diseases, are most likely underpinned by multiple genes contributing to interlocking molecular biological processes, along with environmental factors (Owen et al., 2010. Despite this, genotyping strategies for complex, inherited, disease-related phenotypes mostly employ univariate analyses, e.g. genome wide association (GWA. Such procedures most often identify isolated risk-related SNPs or loci, not the underlying biological pathways necessary to help guide the development of novel treatment approaches. This article focuses on the multivariate analysis strategy of parallel (i.e. simultaneous combination of SNP and neuroimage information independent component analysis (p-ICA, which typically yields large clusters of functionally related SNPs statistically correlated with phenotype components, whose overall molecular biologic relevance is inferred subsequently using annotation software suites. Because this is a novel approach, whose details are relatively new to the field we summarize its underlying principles and address conceptual questions regarding interpretation of resulting data and provide practical illustrations of the method.

  20. Survey of studies on the flow and heat transfer of two-component, two-phase flow of liquid metal in magnetic field

    International Nuclear Information System (INIS)

    Kumamaru, Hiroshige

    1980-01-01

    Brief review of the studies on the flow and heat transfer of two-component, two-phase flow of liquid metal in magnetic field is presented. R.J. Thome measured the distribution of void rate, slip ratio and pressure loss for the two-phase flow of NaK-N 2 under vertical magnetic field. The void rate distribution became even and the slip ratio increased with the increasing magnetic field. The experimental results of pressure loss was compared with the calculation by an equation derived from the homogeneous flow model. R.G. Owen et al. made the analytical studies of the MHD friction loss of two phase flow. Michiyoshi et al. made experimental studies on the hydrodynamic local properties of Hg-Ar two-phase flow of slug region in a vertically ascending tube under magnetic field, and Kimi et al. also made studies on the heat transfer of Hg-Ar flow under magnetic field. Saito et al. measured the slip ratio and pressure loss of NaK-N 2 flow. As a whole, it can be said that the average void rate decreases, and its distribution becomes even under magnetic field. The slip ratio increases, and the friction loss factor becomes nearly one. It was hard to make clear the heat transfer characteristics. (Kato, T.)

  1. Lessons learned and new challenges for integrated assessment under the National Environmental Policy Act

    Energy Technology Data Exchange (ETDEWEB)

    Carnes, S.A.; Reed, R.M.

    1995-12-31

    One of the first government-sponsored demands for integrated assessment to support decision making in the United States is embodied in the National Environmental Policy Act of 1969 (NEPA). Over the past 25 years, Oak Ridge National Laboratory (ORNL) has supported federal agencies` in evaluating health and environmental impacts as required by NEPA. Many of ORNL`s efforts have focused on complex, programmatic assessments that break new ground and require and integrate expertise from a wide range of technical disciplines. Examples of ORNL projects that illustrate the use of integrated assessment approaches include environmental documentation for: (1) the Department of the Army`s Chemical Stockpile Disposal Program, (2) the Federal Energy Regulatory Commission`s licensing activities related to the Owens River Basin in eastern California and along a 500-mile reach of the upper Ohio River, and (3) the Nuclear Regulatory Commission`s decision regarding restart of the undamaged reactor (Unit 1) at Three Mile Island. Our discussion of these examples illustrates successful integrated assessment approaches and identifies new challenges facing integrated assessment activities.

  2. The implementation of e-learning with team builder at vocational high schools

    Directory of Open Access Journals (Sweden)

    Mahmud Al Haq Patwary

    2015-06-01

    Full Text Available This research is aimed at: (1 producing an appropriate e-learning for English language studies in vocational high school, (2 evaluating the suitability of the developed e-learning in terms of appropriateness, accuracy and clarity, screen presentation and design, and appropriateness of the team builder module aspect, and (3 evaluating the effectiveness of the e-learning in practical application. This research and development (R&D study used Alessi and Trollip’s model rearranged following ADDIE model, where the development of instruction followed Dick and Carey’s model and the need assessment procedures were adapted from Lee & Owens. Overall appropriateness and quality of the e-learning from alpha testing is ‘very appropriate’ and from beta testing is ‘excellent’. Alpha testing reveals that, the Team Builder Module is ‘very appropriate’ and beta testing reveals that, its overall quality is ‘excellent’. The e-learning is highly effective. The average score of the students raises 3.82 points (or 42.44% in the post-test from pre-test score. The minimum score of the post-test (i.e. 8 is more than the maximum score of the pre-test (i.e. 7, so it is concluded that the use of e-learning does not deteriorate the performance of the students, but improves their performance.

  3. Radionuclide migration in the Chernobyl contamination zone

    International Nuclear Information System (INIS)

    Golosov, V.N.; Panin, A.V.; Ivanova, N.N.

    1998-01-01

    It is well known that fallout of 137 Cs reaching the land soils with precipitation was rapidly and tightly sorbed to the fine fraction of sediment or soils. The majority of the 137 Cs is retained in the top few centimetres of the soil or sediment profiles (Loughran et al, 1993, Owens et al, 1996). In the absence of strong variations in precipitation over a relatively small area the total bomb-derived 137 Cs fallout can assumed to be spatial uniform. The Chernobyl 137 Cs fallout was mostly connected with one or two rains. So the spatial variability of this 137 Cs can be higher. Furthermore because the explosion on the Chernobyl nuclear plant happen together with fire, a lot of ashes particles with radionuclide were distributed within vast areas. So even microvariability of Chernobyl 137 Cs can be very high in some places. The horizontal migration of 137 Cs connects with soil erosion processes that dominate on the agricultural lands of the Central Russia. The main goal of this investigation is to evaluate the caesium-137 horizontal and vertical migration within typical landscape of the Central Russia 11 years after the Chernobyl accident

  4. The Ruins of the British Welfare State

    Directory of Open Access Journals (Sweden)

    Tahl Kaminer

    2014-08-01

    Full Text Available The subjects of Owen Hatherley’s A Guide to the New Ruins of Great Britain are architecture and urban development. The book addresses also some broader cultural, political and economic references, as well as personal anecdotes and memories. It includes many encounters with the remnants of the British welfare state.As an extension to his blog postings and a sequel of sorts to his previous Militant Modernism, Hatherley’s antagonist here is the semi-official architecture of New Labour, which he terms ‘pseudomodernism’: an unimaginative, inferior, and, in its own specific way, also tacky architecture of white stucco, steel and glass. He attacks the Faustian bargain of Richard Rogers and his allies with neoliberalism, a pact that produces a modernism devoid of social content, reflected by the unimaginative, speculation-driven architectural design. While Hatherley produces the promised indictment of recent British architecture, the book is, at the end of the day, primarily a eulogy to the disappearing postwar architecture he so evidently loves.

  5. The adhesion performance of epoxy coating on AA6063 treated in Ti/Zr/V based solution

    Science.gov (United States)

    Zhu, Wen; Li, Wenfang; Mu, Songlin; Yang, Yunyu; Zuo, Xi

    2016-10-01

    An environment-friendly titanium/zirconium/vanadium-based (Ti/Zr/V) conversion coating was prepared on aluminum alloy 6063 (AA6063). The epoxy powder coatings were applied on the AA6063 samples with/without Ti/Zr/V conversion coatings via electrostatic spraying. The morphology and composition of the conversion coating were studied by scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS), respectively. The surface free energy components of AA6063 samples were measured by a static contact angle measuring device with Owens method. The adhesion properties of the epoxy coating on AA6063 treated with different conversion times were evaluated using a pull-off tester. The Ti/Zr/V conversion coating was mainly composed of metal oxide (TiO2, ZrO2, V2O5, Al2O3, etc.), metal fluoride (ZrF4, AlF3, etc.) and metal organic complex. The formation time of this conversion coating was reduced to 50 s. After such surface treatment, the samples' surface roughness was increased and the contact angle with water was decreased. Both the surface free energy and the work of adhesion were increased. The adhesion strength between the epoxy coating and AA6063 was enhanced significantly.

  6. Authoritative Images. The Kiwi and the Transactions of the Zoological Society of London.

    Science.gov (United States)

    Canadelli, Elena

    2015-01-01

    The first exemplar of a kiwi, the wingless bird of New Zealand, arrived in the form of a lifeless specimen in Europe in 1812. A debate was sparked over the appearance and nature of this strange creature and indeed whether it actually existed. In 1833 the Transactions of the Zoological Society of London entered the debate and the illustrations published in this journal contributed greatly to the acceptance and further study of the kiwi. Some of the most eminent British zoologists and anatomists of the time were involved, from William Yarrell to Richard Owen, and from John Gould to Abraham Dee Bartlett. This crucial period in the discussion, which would extend over two decades and would only be brought to a close with the arrival of the first living specimen in the London Zoological Garden in 1851, will be analyzed based on a detailed examination of the reports published in the Transactions and other journals. This essay will show how images of the bird were produced and used by zoologists during different stages in the early research on the bird and how these figures circulated inside and outside the zoologists' community.

  7. Awakening Objects and Indigenizing the Museum: Stephen Gilchrist in Conversation with Henry F. Skerritt

    Directory of Open Access Journals (Sweden)

    Stephen Gilchrist

    2016-11-01

    Full Text Available Curated by Stephen Gilchrist, Everywhen: The Eternal Present in Indigenous Art from Australia was held at Harvard Art Museums from February 5, 2016–September 18, 2016. The exhibition was a survey of contemporary Indigenous art from Australia, exploring the ways in which time is embedded within Indigenous artistic, social, historical, and philosophical life. The exhibition included more than seventy works drawn from public and private collections in Australia and the United States, and featured many works that have never been seen outside Australia. Everywhen is Gilchrist’s second major exhibition in the United States, following Crossing Cultures: The Owen and Wagner Collection of Contemporary Aboriginal Australian Art at the Hood Museum of Art in 2012. Conducted on April 22, 2016, this conversation considers the position of Indigenous art in the museum, and the active ways in which curators and institutions can work to “indigenize” their institutions. Gilchrist discusses the evolution of Everywhen, along with the curatorial strategies employed to change the status of object-viewer relations in the exhibition. The transcription has been edited for clarity.

  8. Youngest reported radiocarbon age of a moa (Aves : Dinornithiformes) dated from a natural site in New Zealand

    International Nuclear Information System (INIS)

    Rawlence, N.J.; Cooper, A.

    2013-01-01

    The extinction date of the giant flightless New Zealand ratite bird, the crested moa (Pachyornis australis), is of considerable interest because the youngest verified remains are dated to the Pleistocene–Holocene transition c. 10,000 yr BP, which was characterised by severe climatic and habitat change, and are considerably earlier than the late Holocene extinctions of the other eight moa species. Analysis of a partial crested moa skeleton (NMNZ S23569) from Castle Keep Entrance, Bulmer Cave System, Mount Owen, South Island, generated a radiocarbon date of 564±26 yr BP (544-508 cal yr BP; 95.4% AD 1396-1442). As a result the Bulmer Cave specimen represents the youngest moa yet found from a natural site in New Zealand. Combined with additional crested moa remains dated to the late Holocene from Cheops Cave (Mount Arthur) and Magnesite Quarry (Cobb Valley), this indicates that crested moa did not go extinct during the Pleistocene–Holocene transition but survived until after Polynesian colonisation in c. AD 1280. The new radiocarbon dates reported here have important implications for the timing of moa extinction and the late survival of moa in alpine areas of New Zealand. (author). 47 refs., 2 figs., 1 tab.

  9. Staggering successes amid controversy in California water management

    Science.gov (United States)

    Lund, J. R.

    2012-12-01

    Water in California has always been important and controversial, and it probably always will be. California has a large, growing economy and population in a semi-arid climate. But California's aridity, hydrologic variability, and water controversies have not precluded considerable economic successes. The successes of California's water system have stemmed from the decentralization of water management with historically punctuated periods of more centralized strategic decision-making. Decentralized management has allowed California's water users to efficiently explore incremental solutions to water problems, ranging from early local development of water systems (such as Hetch Hetchy, Owens Valley, and numerous local irrigation projects) to more contemporary efforts at water conservation, water markets, wastewater reuse, and conjunctive use of surface and groundwater. In the cacophony of local and stakeholder interests, strategic decisions have been more difficult, and consequently occur less frequently. California state water projects and Sacramento Valley flood control are examples where decades of effort, crises, floods and droughts were needed to mobilize local interests to agree to major strategic decisions. Currently, the state is faced with making strategic environmental and water management decisions regarding its deteriorating Sacramento-San Joaquin Delta. Not surprisingly, human uncertainties and physical and fiscal non-stationarities dominate this process.

  10. Solar Flare Dynamic Microwave Imaging with EOVSA

    Science.gov (United States)

    Gary, D. E.; Chen, B.; Nita, G. M.; Fleishman, G. D.; Yu, S.; White, S. M.; Hurford, G. J.; McTiernan, J. M.

    2017-12-01

    The Expanded Owens Valley Solar Array (EOVSA) is both an expansion of our existing solar array and serves as a prototype for a much larger future project, the Frequency Agile Solar Radiotelescope (FASR). EOVSA is now complete, and is producing daily imaging of the full solar disk, including active regions and solar radio bursts at hundreds of frequencies in the range 2.8-18 GHz. We present highlights of the 1-s-cadence dynamic imaging spectroscropy of radio bursts we have obtained to date, along with deeper analysis of multi-wavelength observations and modeling of a well-observed burst. These observations are revealing the full life-cycle of the trapped population of high-energy electrons, from their initial acceleration and subsequent energy-evolution to their eventual decay through escape and thermalization. All of our data are being made available for download in both quick-look image form and in the form of the community-standard CASA measurement sets for subsequent imaging and analysis.

  11. El impacto de las imágenes en una tarea de recontado: Diseño de un cuento ilustrado para niños basado en la Gramática Visual

    Directory of Open Access Journals (Sweden)

    Carola Alvarado

    2016-06-01

    Full Text Available A common way to measure and stimulate narrative child development is through the retelling of a story (Owen, 2006. In Chile, retelling tasks are designed considering the structure of the verbal input, both on a lexical-syntactic and textual level, as well as setting levels of complexity among them (Pavez & Coloma, 2005. The research project FONDECYT 1130420 produced a storybook – as an input of a retelling task- emphasizing not only the verbal aspect, but also the visual narrative. Therefore, we set a double objective: to design narrative images of a story, enhancing its meaning through a visual grammar, and to observe how these elements were reflected in the oral retelling of the subjects. For this purpose, along with the Story Grammar (Glen & Stein, 1979 for the textual structure analysis, we used the Grammar of Visual Design (Kress & Van Leeuwen, 1996 as analytical tool for preparing narrative images. The story was piloted in a sample of 20 kindergarten children from a semiprivate school in the Region of Valparaiso. Their oral narratives were videotaped, transcribed and analyzed. It was noted that all narrative images were mentioned in more than 60% of the recounted version. In addition, three images were referred in 90% of the child narratives, representing key moments of the story or certain complexity of the narrative input as simultaneous actions. These results highlight the importance of the visual elements of a story for the task of child retelling.

  12. California GAMA Special Study: Importance of River Water Recharge to Selected Groundwater Basins

    Energy Technology Data Exchange (ETDEWEB)

    Visser, Ate [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Moran, Jean E. [California State Univ. East Bay (CalState), Hayward, CA (United States); Singleton, Michael J. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Esser, Bradley K. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2016-03-21

    River recharge represents 63%, 86% and 46% of modern groundwater in the Mojave Desert, Owens Valley, and San Joaquin Valley, respectively. In pre-modern groundwater, river recharge represents a lower fraction: 36%, 46%, and 24% respectively. The importance of river water recharge in the San Joaquin valley has nearly doubled and is likely the result of a total increase of recharge of 40%, caused by river water irrigation return flows. This emphasizes the importance of recharge of river water via irrigation for renewal of groundwater resources. Mountain front recharge and local precipitation contribute to recharge of desert groundwater basins in part as the result of geological features focusing scarce precipitation promoting infiltration. River water recharges groundwater systems under lower temperatures and with larger water table fluctuations than local precipitation recharge. Surface storage is limited in time and volume, as evidenced by cold river recharge temperatures resulting from fast recharge, compared to the large capacity for subsurface storage. Groundwater banking of seasonal surface water flows therefore appears to be a natural and promising method for increasing the resilience of water supply systems. The distinct isotopic and noble gas signatures of river water recharge, compared to local precipitation recharge, reflecting the source and mechanism of recharge, are valuable constraints for numerical flow models.

  13. A redescription of Lithornis vulturinus (Aves, Palaeognathae) from the Early Eocene Fur Formation of Denmark.

    Science.gov (United States)

    Bourdon, Estelle; Lindow, Bent

    2015-10-20

    The extinct Lithornithidae include several genera and species of flying palaeognathous birds of controversial affinities known from the Early Paleogene of North America and Europe. An almost complete, articulated skeleton from the Early Eocene marine deposits of the Fur Formation (Denmark) was recently assigned to Lithornis vulturinus Owen, 1840. This study provides a detailed redescription and comparison of this three-dimensionally preserved specimen (MGUH 26770), which is one of the best preserved representatives of the Lithornithidae yet known. We suggest that some new features might be diagnostic of Lithornis vulturinus, including a pterygoid fossa shallower than in other species of Lithornis and the presence of a small caudal process on the os palatinum. We propose that Lithornis nasi (Harrison, 1984) is a junior synonym of Lithornis vulturinus and we interpret minor differences in size and shape among the specimens as intraspecific variation. To date, Lithornis vulturinus is known with certainty from the latest Paleocene-earliest Eocene to Early Eocene of the North Sea Basin (Ølst, Fur and London Clay Formations). Among the four species of the genus Lithornis, the possibility that Lithornis plebius Houde, 1988 (Early Eocene of Wyoming) is conspecific with either Lithornis vulturinus or Lithornis promiscuus Houde, 1988 (Early Eocene of Wyoming) is discussed. The presence of closely related species of Lithornis on either side of the North Atlantic in the Early Eocene reflects the existence of a high-latitude land connection between Europe and North America at that time.

  14. New Challenges in Teaching Accounting and Reporting in Tourist Enterprises

    Directory of Open Access Journals (Sweden)

    Maria Gabriella Baldarelli

    2013-02-01

    Full Text Available The experience of teaching for several years in different degree courses pressed me to use new tools and methods to make use of Connecting general trend of teaching all over the world this paper want to reply to the following research question: “what challenges we are facing in teaching accounting and reporting in tourist enterprises?”. Research design is oriented to deep study international literature about the state of art of teaching accounting and above all social and environmental accounting and reporting (SEAR (Gray, Owen, Adams, 1996, Tinker, Gray, 2003; Tinker, 2005; Gray, Guthrie, 2007, because I think that this field is very important for service enterprises, especially for tourist ones. The importance is given by disclosure and democracy that is at the base of SEAR process and my interest to safeguard people and environment in tourist entities and destinations (Garrone, Di Cesare, 2005.I want to present some reflections about how to teach accounting in tourism to give student the availability to understand the constructive role of accounting but at the same time the bad role of it at the same to serve power and exploitation.

  15. The MASIV Survey - IV. Relationship between intra-day scintillation and intrinsic variability of radio AGNs

    Science.gov (United States)

    Koay, J. Y.; Macquart, J.-P.; Jauncey, D. L.; Pursimo, T.; Giroletti, M.; Bignall, H. E.; Lovell, J. E. J.; Rickett, B. J.; Kedziora-Chudczer, L.; Ojha, R.; Reynolds, C.

    2018-03-01

    We investigate the relationship between 5 GHz interstellar scintillation (ISS) and 15 GHz intrinsic variability of compact, radio-selected active galactic nuclei (AGNs) drawn from the Microarcsecond Scintillation-Induced Variability (MASIV) Survey and the Owens Valley Radio Observatory blazar monitoring program. We discover that the strongest scintillators at 5 GHz (modulation index, m5 ≥ 0.02) all exhibit strong 15 GHz intrinsic variability (m15 ≥ 0.1). This relationship can be attributed mainly to the mutual dependence of intrinsic variability and ISS amplitudes on radio core compactness at ˜ 100 μas scales, and to a lesser extent, on their mutual dependences on source flux density, arcsec-scale core dominance and redshift. However, not all sources displaying strong intrinsic variations show high amplitude scintillation, since ISS is also strongly dependent on Galactic line-of-sight scattering properties. This observed relationship between intrinsic variability and ISS highlights the importance of optimizing the observing frequency, cadence, timespan and sky coverage of future radio variability surveys, such that these two effects can be better distinguished to study the underlying physics. For the full MASIV sample, we find that Fermi-detected gamma-ray loud sources exhibit significantly higher 5 GHz ISS amplitudes than gamma-ray quiet sources. This relationship is weaker than the known correlation between gamma-ray loudness and the 15 GHz variability amplitudes, most likely due to jet opacity effects.

  16. An update on the management of peripheral T-cell lymphoma and emerging treatment options

    Directory of Open Access Journals (Sweden)

    Phillips AA

    2011-09-01

    Full Text Available Adrienne A Phillips1, Colette Owens2, Sangmin Lee1, Govind Bhagat31Division of Medical Oncology, Department of Medicine, 2Division of General Medicine, Department of Medicine, 3Department of Pathology and Cell Biology, Columbia University Medical Center and New York Presbyterian Hospital, Columbia University, New York, NY, USAAbstract: Peripheral T-cell lymphomas (PTCLs comprise a rare and heterogeneous subset of non-Hodgkin’s lymphomas (NHLs that arise from post-thymic T-cells or natural killer (NK-cells at nodal or extranodal sites. Worldwide, PTCLs represent approximately 12% of all NHLs and the 2008 World Health Organization (WHO classification includes over 20 biologically and clinically distinct T/NK-cell neoplasms that differ significantly in presentation, pathology, and response to therapy. Because of the rarity and heterogeneity of these diseases, large clinical trials have not been conducted and optimal therapy is not well defined. Most subtypes are treated with similar combination chemotherapy regimens as used for aggressive B-cell NHL, but with poorer outcomes. New treatment combinations and novel agents are currently being explored for PTCLs and this review highlights a number of options that appear promising.Keywords: treatment, non-Hodgkin’s lymphoma, novel therapy, natural-killer cells

  17. Book Reviews

    Directory of Open Access Journals (Sweden)

    Silvia W. de Groot

    1971-07-01

    Full Text Available - P.J. Worsley, Ktut Ginarsa, Prasasti Baru Ragajaya 6 April 1155. Direktorat Bahasa dan Kesusastraan, Direktorat Djendral Kebudajaan, Departemen Pendidikan dan Kebudajaan, Tjabang Singaradja, 1968. XVI, 54 p., 3 maps. - Th. J. Gerold-Scheepers, M.A. Jaspan, Traditional medical theory in Southeast Asia. An inaugural lecture, University of Hull, Hull 1969. 36 pag. - Renato Rosaldo, Don V. Hart, Bisayan Filipino and Malayan Humoral Pathologies: Folk medicine and ethnohistory in Southeast Asia. Ithaca, New York; Department of Asian Studies, Cornell University. Data Paper: No. 76. 96 p. - Pierre J. Simon, W.E. Willmott, The political structure of the Chinese community in Cambodia. L.S.E. Monographs nr. 42. The Athlone Press, London 1970. 211 p. - Vivien van Geen, Owen M. Lynch, The politics of untouchability (Social mobility and social change in a city of India. Columbia University Press, New York and London, 1969. XIV-251 pp. - W.F.L. Buschkens, Silvia W. de Groot, Djuka society and social change: History of an attempt to develop a bush negro community in Surinam 1917-1926. Van Gorcum & Comp. N.V. - Doctor H.J. Prakke & H.M.G. Prakke, Assen 1969. XVI + 256 p., met twee kaarten, 12 fotografieën en een bibliografie van Willem Frederik van Lier. - W.F.L. Buschkens, A. Polak-Eltz, Afro-Amerikaanse godsdiensten en culten. J.J. Romen & Zonen, Roermond 1970. 221 blz., 30 ills.

  18. [Recovery of consciousness: process-oriented approach].

    Science.gov (United States)

    Gusarova, S B

    2014-01-01

    Traditionally psychological neurorehabilitation of neurosurgical patients is provided subject to availability of clear consciousness and minimal potential to communicate verbally. Cognitive and emotional disorders, problems in social adaptation, neurotic syndromes are normally targets in such cases. We work with patients having survived severe brain damage being in different states of consciousness: vegetative state, minimal state of consciousness, mutism, confusion, posttraumatic Korsaroff syndrom. Psychologist considers recovery of consciousness as the target besides traditional tasks. Construction of communication with patient is central part of such job, where the patient remains unable to contact verbally, yet it is impossible to consider potential aphasia. This is a non-verbal "dialogue" with patient created by psychologist with gradual development and involving other people and objects of environment. Inline with modern neuroscientific achievements demonstrating ability to recognize by patients with severe brain injury (A. Owen, S. Laureys, M. Monti, M. Coleman, A. Soddu, M. Boly and others) we base upon psychological science, on psychotherapeutic approaches containing instruments inevitable to work with patients in altered states of consciousness and creation of non-verbal communication with patient (Jung, Reich, Alexander, Lowen, Keleman, Arnold and Amy Mindell, S. Tomandl, D. Boadella, A. Längle, P. Levin etc). This article will include 15 years of experience to apply Process-oriented approach by A. Mindell to recovery of consciousness of neurosurgical patients based on work with "minimal signals" (micro moves, breath, mimic reactions etc.), principle of feedback, psychosomatic resonance, empathy.

  19. Friction welding method

    International Nuclear Information System (INIS)

    Ishida, Ryuichi; Hatanaka, Tatsuo.

    1969-01-01

    A friction welding method for forming a lattice-shaped base and tie plate supporter for fuel elements is disclosed in which a plate formed with a concavity along its edge is pressure welded to a rotating member such as a boss by longitudinally contacting the projecting surfaces remaining on either side of the concavity with the rotating member during the high speed rotation thereof in the presence of an inert gas. Since only the two projecting surfaces of the plate are fused by friction to the rotary member, heat expansion is absorbed by the concavity to prevent distortion; moreover, a two point contact surface assures a stable fitting and promotes the construction of a rigid lattice in which a number of the abovementioned plates are friction welded between rotating members to form any desired complex arrangement. The inert has serves to protect the material quality of the contacting surfaces from air during the welding step. The present invention thus provides a method in which even Zircaloy may be friction welded in place of casting stainless steel in the construction of supporting lattices to thereby enhance neutron economy. (K. J. Owens)

  20. Hippocampus minor and man's place in nature: a case study in the social construction of neuroanatomy.

    Science.gov (United States)

    Gross, C G

    1993-10-01

    In mid-19th century Britain the possibility of evolution and particularly the evolution of man from apes was vigorously contested. Among the leading antievolutionists was the celebrated anatomist and paleontologist Richard Owen and among the leading defenders of evolution was Thomas Henry Huxley. The central dispute between them on human evolution was whether or not man's brain was fundamentally unique in having a hippocampus minor (known today as the calcar avis), a posterior horn in the lateral ventricle, and a posterior lobe. The author considers the background of this controversy, the origin and fate of the term hippocampus minor, why this structure became central to the question of human evolution, and how Huxley used it to support both Darwinism and the political ascendancy of Darwinians. The use of ventricular structures to distinguish humans from other animals appears to reflect an importance given to the ventricles that stretches back to ancient Greek medicine. This account illustrates both the extraordinary persistence of ideas in biology and the role of the political and social matrix in the study of the brain.

  1. FY 2001 report on the coal engineer training project. Advanced course; 2001 nendo sekitan gijutsusha yose jigyo. Jokyu kosu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-03-01

    The paper summed up the details of the training in the coal engineer training project (advanced course) carried out in FY 2001. The term of training was from June 1 to November 14, 2001. In the business training, lectures were given on coal geology, coal exploration technology, coal mining technology, draft survey, coal sampling and analysis method, maritime freight transport mainly of coal, coal utilization technology, environmental protection technology related to coal utilization, projects on overseas coal development, physical properties/chemical characteristics and usage of coal, and coal situation in China. In the inspection training, inspectional visits were paid to Taiheiyo Coal Mining Co., Noshiro Power Plant of the Tohoku Electric Power Co., Kumagaya Plant of Taiheiyo Cement Corp. and Keihin Steelworks of NKK Corp. In the training overseas, inspectional visits were paid to the following in Australia: coal mines of Moonee, Rix's Creek, West Wallsend, Bloomfield, Beltana, Bulga, South Bulga, Mt. Thorley, Warkworth, Liddell, Wambo, Mount Owen, Camberwell, etc. and harbors of Port Newcastle, Port Kembla Coal Terminal, etc. (NEDO)

  2. The dawn of chelonian research: turtles between comparative anatomy and embryology in the 19th century.

    Science.gov (United States)

    MacCord, Kate; Caniglia, Guido; Moustakas-Verho, Jacqueline E; Burke, Ann C

    2015-05-01

    Many evo-devo studies of the turtle's shell draw hypotheses and support from historical sources. The groundbreaking works of Cuvier, Geoffroy St. Hilaire, Carus, Rathke, Owen, and others are being revived in modern research, and their centuries-old understanding of the turtle's shell reconsidered. In the works of these eminent biologists of the 19th century, comparative anatomy and embryology of turtle morphology set the stage for future studies in developmental biology, histology, and paleontology. Given the impact that these works still make on modern research, it is important to develop a thorough appreciation of previous authors, regarding how they arrived at their conclusions (i.e., what counted as evidence?), whether there was debate amongst these authors about shell development (i.e., what counted as an adequate explanation?), and even why these men, some of the most powerful and influential thinkers and anatomists of their day, were concerned with turtles. By tracing and exposing the context and content of turtle shell studies in history, our aim is to inform modern debates about the evolution and development of the turtle's shell. © 2014 Wiley Periodicals, Inc.

  3. On variation in Schloenbachia varians (J. Sowerby, 1817) from the Lower Cenomanian of western Kazakhstan

    Science.gov (United States)

    Kennedy, William James

    2013-12-01

    Kennedy, W.J. 2013. On variation in Schloenbachia varians (J. Sowerby, 1817) from the Lower Cenomanian of western Kazakhstan Acta Geologica Polonica, 63(4), 443-468. Warszawa. An assemblage of 94 specimens of Schloenbachia varians (J. Sowerby, 1817) from the Lower Cenomanian Sharpeiceras schlueteri Subzone of the Mantelliceras mantelli Zone of the Besakty section in the Mangyshlak Mountains of western Kazakhstan includes 26 complete adults that range from to 59-174 mm in diameter. No size-related dimorphism was detected in the assemblage, which shows wide, continuous intraspecific variation. This is described in terms of five formae; from robust to gracile these are: ventriosa, varians sensu stricto, subtuberculata , intermedia, and subplana. The ratio of robust (ventriosa + varians sensu stricto) to gracile (subtuberculata + intermedia + subplana) individuals is 34% to 66%. The reference specimens of the formae and their synonyms are described and illustrated, and related to the Besakty material. The modification of adult body chamber ornament of all formae is documented, and Jakeiceras Cooper and Owen, 2011 is shown to be based on an adult of a passage form between forma subtuberculata and forma intermedia. The differences between Lower Cenomanian S. varians, lower Middle Cenomanian S. coupei (Brongniart, 1822), and upper Middle and lower Upper Cenomanian S. lymensis Spath, 1926b are described and illustrated.

  4. Polyphased rifting to post-breakup evolution of the Coral Sea region, Papua New Guinea

    Science.gov (United States)

    Bulois, Cédric; Pubellier, Manuel; Chamot-Rooke, Nicolas; Delescluse, Matthias

    2016-04-01

    The Coral Sea Basin, offshore Papua New Guinea, is generally described as a rift propagator that opened through the Australian craton during the Late Cretaceous. Rifting was later followed by spreading activity during Palaeocene to lowermost Eocene times and basin inversion during the Cenozoic. Herein, we specifically describe the extensional structures and show that the area has actually a much longer history that dates back from the Late Palaeozoic. A special focus is made on the northern margin of the Coral Sea Basin along which subsurface and HD topographic data were recently acquired. Extension took place discontinuously from the Late Palaeozoic to the Lower Cenozoic through several rift megacycles that include extensional pulses and relaxation episodes. The first rift megacycle (R1), poorly documented, occurred during the Triassic along an old Permo-Triassic, NS-trending structural fabric. Evidence of Permo-Triassic features is principally observed in the western part of the Coral Sea near the Tasman Line, a major lithospheric discontinuity that marks the eastern limit of the underlying Australian craton in Papua New Guinea. This early Triassic framework was reactivated during a Jurassic rifting stage (R2), resulting in small (~10/20km) tilted basins bounded by major NS, NE-SW and EW normal faults. Extension formed a large basin, floored by oceanic crust that might have connected with the Tethys Ocean. The Owen Stanley Oceanic Basin containing deep-marine sediments now obducted in the Ocean Stanley Thrust Belt are likely to represent this oceanic terrane. Both R1 and R2 megacycles shaped the geometry of the Jurassic Australian margin. A third Cretaceous extensional megacycle (R3) only reactivated the largest faults, cutting through the midst of this early stretched continental margin. It formed wider, poorly tilted basins and terminated with the onset of the Coral Sea seafloor spreading from Danian to Ypresian times (61.8 to 53.4 Myr). Then, the overall

  5. The case for policy-relevant conservation science

    Science.gov (United States)

    Rose, David C

    2015-01-01

    Drawing on the “evidence-based” (Sutherland et al. 2013) versus “evidence-informed” debate (Adams & Sandbrook 2013), which has become prominent in conservation science, I argue that science can be influential if it holds a dual reference (Lentsch & Weingart 2011) that contributes to the needs of policy makers whilst maintaining technical rigor. In line with such a strategy, conservation scientists are increasingly recognizing the usefulness of constructing narratives through which to enhance the influence of their evidence (Leslie et al. 2013; Lawton & Rudd 2014). Yet telling stories alone is rarely enough to influence policy; instead, these narratives must be policy relevant. To ensure that evidence is persuasive alongside other factors in a complex policy-making process, conservation scientists could follow 2 steps: reframe within salient political contexts and engage more productively in boundary work, which is defined as the ways in which scientists “construct, negotiate, and defend the boundary between science and policy” (Owens et al. 2006:640). These will both improve the chances of evidence-informed conservation policy. El Caso para la Ciencia de la Conservación con Relevancia Política Resumen A partir del debate “con base en evidencia” (Sutherland et al. 2013) versus “informado con evidencia” (Adams & Sandbrook 2013), debate que se ha vuelto prominente en la ciencia de la conservación, argumento que la ciencia puede ser influyente si mantiene una referencia dual (Lentsch & Weingart 2011) que contribuya a las necesidades de quienes hacen la política a la vez que mantiene un rigor técnico. En línea con dicha estrategia, los científicos de la conservación cada vez reconocen más la utilidad de construir narrativas con las cuales pueden mejorar la influencia de sus evidencias (Leslie et al. 2013; Lawton & Rudd 2014). Sin embargo, sólo contar historias rara vez es suficiente para influir sobre la política; en su lugar, estas

  6. Systematics of the genus Gnathostoma (Nematoda: Gnathostomatidae in the Americas Sistemática del género Gnathostoma (Nematoda: Gnathostomatidae en América

    Directory of Open Access Journals (Sweden)

    Florencia Bertoni-Ruiz

    2011-06-01

    Full Text Available To date, more than 20 species of the genus Gnathostoma have been described as parasites of mammals, 9 of them in the Americas. However, the taxonomic status of some of these species has been questioned. The main goal of this study is to clarify the validity of the American species included in the genus. In order to complete this objective, we analyze type and/or voucher specimens of all these species deposited in 6 scientific collections, through morphometric and ultrastructural studies. Based on diagnostic traits as host specificity, site of infection, body size, cuticular spines, presence of 1 or 2 bulges in the polar ends of eggs, as well as eggshell and caudal bursa morphology, we re-establish Gnathostoma socialis (Leidy, 1858 and confirm the validity of other 6 species: Gnathostoma turgidum Stossich, 1902, Gnathostoma americanum Travassos, 1925, Gnathostoma procyonis Chandler, 1942, Gnathostoma miyazakii Anderson, 1964, Gnathostoma binucleatum Almeyda-Artigas, 1991, and Gnathostoma lamothei Bertoni-Ruiz, García-Prieto, Osorio-Sarabia and León-Règagnon, 2005. Gnathostoma didelphis Chandler, 1932 and Gnathostoma brasiliensis Ruiz, 1952 are considered synonyms of G. turgidum. Finally, based on a wide revision of specimens deposited in 6 American collections, we conclude that records of Gnathostoma spinigerum Owen, 1836 in the Americas are invalid.A la fecha, se han descrito más de 20 especies del género Gnathostoma parásitas de mamíferos, 9 de ellas en America. Sin embargo, el estado taxonómico de algunas ha sido cuestionado. El objetivo de este estudio es aclarar la validez de las especies americanas incluidas en el género. Para ello, se analizaron ejemplares tipo o de referencia de todas las especies, depositados en 6 colecciones científicas, mediante estudios morfométricos y ultraestructurales. Con base en rasgos diagnósticos como especificidad hospedatoria, sitio de infección, dimensiones corporales, espinas cuticulares (n

  7. El registro más completo de un Hoplophorini (Xenarthra: Glyptodontidae para los Pisos/Edades Chapadmalalense-Marplatense (Plioceno tardío-Pleistoceno temprano The most complete record of a Hoplophorini (Xenarthra: Glyptodontidae for the Chapadmalalan-Marplatan Stages (Late Pliocene-Early Pleistocene

    Directory of Open Access Journals (Sweden)

    Alfredo E Zurita

    2011-06-01

    Full Text Available Los Glyptodontidae del Neógeno tardío (Pisos/Edades Chapadmalalense-Marplatense; ca. 3.9-1.8 Ma constituyen un grupo escasamente conocido, en tanto la mayoría de los registros están limitados a restos aislados de la coraza dorsal y/o caudal. Las únicas excepciones están representadas por Paraglyptodon chapalmalensis (Ameghino in Rovereto, un fósil guía para el Chapadmalalense superior, y el Plohophorini Plohophorus figuratus Ameghino. Por otro lado, los "Hoplophorinae" Hoplophorini son gliptodontes que tienen sus primeros registros durante los Pisos Huayqueriense (Mioceno tardío y "Araucanense" (Mioceno tardío-Plioceno, pero están prácticamente ausentes durante los Pisos Chapadmalalense-Marplatense (Plioceno-Pleistoceno temprano. Posteriormente, los Hoplophorini (Neosclerocalyptus Paula Couto son, junto con Glyptodon Owen, los Glyptodontidae de registro más frecuente en el Pleistoceno de América del Sur. En esta contribución damos a conocer el primer registro de un Hoplophorini de antigüedad Chapadmalalense, asignado al género Eosclerocalyptus C. Ameghino (Eosclerocalyptus cf. E. lineatus. Este nuevo material, representado por una coraza dorsal, fue exhumado de la sección superior de la Fm. Chapadmalal, Mar del Plata, provincia de Buenos Aires. Desde una perspectiva morfológica, esta coraza presenta un tamaño intermedio entre E. tapinocephalus Cabrera, E. proximus (Moreno & Mercerat y Neosclerocalyptus Paula Couto. Junto con cf. Paraglyptodon chapalmalensis y Plohophorus figuratus Ameghino, estos registros representan los Glyptodontidae Pliocenos más completos que se conocen; a su vez, completa parcialmente la distribución estratigráfica de los Glyptodontidae Hoplophorini.The late Neogene (Chapadmalalan-Marplatan Stages; ca. 3.9-1.8 Ma Glyptodontidae from southern South America are poorly known since most of the record are limited to remains of the dorsal and/or caudal armour. In this sense, the exceptions are represented

  8. Predicted versus measured resting energy expenditure in patients requiring home parenteral nutrition.

    Science.gov (United States)

    Ławiński, Michał; Singer, Pierre; Gradowski, Łukasz; Gradowska, Aleksandra; Bzikowska, Agnieszka; Majewska, Krystyna

    2015-01-01

    Guidelines from the European Society for Clinical Nutrition and Metabolism (ESPEN) recommend between 20 and 35 kcal/kg daily for patients requiring home parenteral nutrition (PN). Other guidelines use predictive equations. However, these equations have not been validated. Indirect calorimetry is recommended as the gold standard for determining resting energy expenditure (REE). The aim of this study was to compare the frequently used equations with measured REE. Seventy-six hospitalized patients suffering from intestinal failure (ages 21-85 y) were enrolled between January 2012 and May 2014. They were eligible for implementation of home parenteral nutrition (HPN) due to short bowel syndrome (54%), intestinal fistulae (24%), cancer obstruction (16%), and radiation-induced intestinal injury (6%). REE measurements were compared with predictive equations by Harris and Benedict (HB), Owen, Ireton-Jones, and Mifflin, as well as recommendations from ESPEN. In all, 152 calorimetry measurements (two per patient) were performed in 76 patients, after total PN administrations. An average result of REE measurement by indirect calorimetry was 1181 ± 322 kcal/d. Variability in momentary energy expenditure (MEE) from one measurement to the other was 8% ± 7%. Bland-Altman analysis showed a mean bias of -192 ± 300 kcal/d between MEE and estimated energy expenditure using the HB equation, which means that the equation increased the score on average by 192 ± 300 kcal/d. Limits of agreement (LoA) between the two methods was -780 to +396 kcal/d. Estimation energy expenditure using the Ireton-Jones equation gave a mean bias of -359 ± 335 kcal/d. LoA between the two methods was -1015 to +297 kcal/d. For Owen equation, Bland-Altman analysis showed a mean bias of -208 ± 313 kcal/d and the LoA between the two methods was -822 to +406 kcal/d. Using the Mifflin equation, estimation energy expenditure gave a mean bias of -172 ± 312 kcal/d and the LoA between the

  9. Basis set expansion for inverse problems in plasma diagnostic analysis

    Science.gov (United States)

    Jones, B.; Ruiz, C. L.

    2013-07-01

    A basis set expansion method [V. Dribinski, A. Ossadtchi, V. A. Mandelshtam, and H. Reisler, Rev. Sci. Instrum. 73, 2634 (2002)], 10.1063/1.1482156 is applied to recover physical information about plasma radiation sources from instrument data, which has been forward transformed due to the nature of the measurement technique. This method provides a general approach for inverse problems, and we discuss two specific examples relevant to diagnosing fast z pinches on the 20-25 MA Z machine [M. E. Savage, L. F. Bennett, D. E. Bliss, W. T. Clark, R. S. Coats, J. M. Elizondo, K. R. LeChien, H. C. Harjes, J. M. Lehr, J. E. Maenchen, D. H. McDaniel, M. F. Pasik, T. D. Pointon, A. C. Owen, D. B. Seidel, D. L. Smith, B. S. Stoltzfus, K. W. Struve, W. A. Stygar, L. K. Warne, J. R. Woodworth, C. W. Mendel, K. R. Prestwich, R. W. Shoup, D. L. Johnson, J. P. Corley, K. C. Hodge, T. C. Wagoner, and P. E. Wakeland, in Proceedings of the Pulsed Power Plasma Sciences Conference (IEEE, 2007), p. 979]. First, Abel inversion of time-gated, self-emission x-ray images from a wire array implosion is studied. Second, we present an approach for unfolding neutron time-of-flight measurements from a deuterium gas puff z pinch to recover information about emission time history and energy distribution. Through these examples, we discuss how noise in the measured data limits the practical resolution of the inversion, and how the method handles discontinuities in the source function and artifacts in the projected image. We add to the method a propagation of errors calculation for estimating uncertainties in the inverted solution.

  10. Meat quality of broiler breast fillets with white striping and woody breast muscle myopathies.

    Science.gov (United States)

    Tijare, V V; Yang, F L; Kuttappan, V A; Alvarado, C Z; Coon, C N; Owens, C M

    2016-09-01

    The global poultry industry has been faced with emerging broiler breast meat quality issues including conditions known as white striping (WS, white striations parallel to muscle fibers) and woody breast (WB, hardness of raw fillet). Experiments were conducted to evaluate effects of WS and WB hardness on meat quality traits in broiler breast fillets. In Exp. 1, birds were processed at approximately 9 wk of age and deboned at 4 h postmortem (PM); in Exp. 2, birds were processed at approximately 6 and 9 wk of age and deboned at 2 h PM. Fillets were categorized as: normal for both white striping and woody breast (NORM); moderate for white striping and mild for woody breast (MILD); severe for white striping and mild for woody breast (WS); severe for woody breast and moderate for white striping (WB); or severe for both white striping and woody breast (BOTH). Sarcomere length, gravimetric fragmentation index, marination uptake, cook loss, and Meullenet-Owens razor shear energy (MORSE) values on non-marinated and marinated fillets were assessed. Sarcomeres tended to be longer (P = 0.07) with increasing severity of WS and WB in both experiments and gravimetric fragmentation index did not differ (P > 0.05) among categories. Marinade uptake decreased (P  0.05) in non-marinated fillets, the marinated BOTH fillets had greater MORSE values (P  0.05) among categories of marinated breasts. At 9 wk, WS and BOTH were higher (P white striping and woody breast, individually or in combination, negatively impact meat quality, especially water holding capacity attributes such as marinade uptake and cook loss. © 2016 Poultry Science Association Inc.

  11. Geologic setting of the proposed West Flank Forge Site, California: Suitability for EGS research and development

    Science.gov (United States)

    Sabin, Andrew; Blake, Kelly; Lazaro, Mike; Blankenship, Douglas; Kennedy, Mack; McCullough, Jess; DeOreo, S.B.; Hickman, Stephen H.; Glen, Jonathan; Kaven, Joern; Williams, Colin F.; Phelps, Geoffrey; Faulds, James E.; Hinz, Nicholas H.; Calvin, Wendy M.; Siler, Drew; Robertson-Tait, Ann

    2017-01-01

    The proposed West Flank FORGE site is within the China Lake Naval Air Weapons Station (NAWS), China Lake, CA. The West Flank is west of the Coso geothermal field, an area of China Lake NAWS dominated by the Quaternary Coso volcanic field largely comprised of rhyolite domes and their volcaniclastic and epiclastic horizons. The largest dome flow complex, Sugarloaf Mountain, marks the northwestern margin of the geothermal field. The West Flank is situated due west of Sugarloaf. The geologic setting of the West Flank was determined from one deep well (83-11) drilled as a potential production hole in 2009. The bottom-hole temperature (BHT) of well 83-11 approaches 600 oF (315˚C), but flow tests demonstrate very low, non-commercial permeabilities. With the exception of the upper 600 feet of volcaniclastic alluvium, well 83-11 is completed in granitic basement. The West Flank possesses the primary attributes of a FORGE site: non-commercial permeability (geothermal fieldThe Coso Mountains host the Coso volcanic field and are within a right-releasing stepover between the dextral Airport Lake (ALF) and Little Lake fault zones (LLFZ) and the Wild Horse Mesa and Owens Valley faults. Two distinct fault populations have been identified at Coso: WNW-trending and antithetical, NE-trending strike-slip faults and N- to NNE-trending normal faults. These faults are both high permeability drilling targets at depth within the main (productive) geothermal field and they locally segment the field into distinct hydrothermal regimes. The West Flank may be segmented from the rest of the field by one such northerly trending fault. The overall minimum principal stress orientation in the main geothermal field varies from 103˚ to 108˚; however, the minimum horizontal principal stress in 83-11 is rotated to 081˚.

  12. Članci časopisa Foreign Affairs o jugoslovenskim ratovima 1991-1999.

    Directory of Open Access Journals (Sweden)

    Petar Dragišić

    2015-02-01

    Full Text Available The Foreign Affairs journal is an important asset for analysis of American foreign policy and the most important global topics for nearly a century. In the 1990-ties many of the authors in this journal dealt with the issue of Yugoslavia – the disintegration of the Socialist Federal Republic of Yugoslavia and a series of wars that followed on its former territory. The Yugoslav crisis was analyzed by the different authors: theorists, prominent journalists, and politicians that were directly involved in different stages of the Yugoslav crisis, such as David Owen, Warren Zimmerman or Carl Bildt. Most of the attention was devoted to the conflicts in Bosnia and Herzegovina and Kosovo. The causes of the Yugoslav tragedy were analyzed, in many articles on the Yugoslav wars in the 1990s, published in Foreign Affairs, with a special focus on origins of internal tensions that preceded the tragic collapse of the Yugoslavia. The most frequent topic of those articles, was the role of foreign factors in crisis and wars in the former Yugoslavia. The issue of international recognition of the breakaway Yugoslav republics at the beginning of the wars, and NATO air strikes against the Federal Republic of Yugoslavia in 1999 was specifically addressed. Several Foreign Affairs articles published the nineties and the early years of the millennium evaluated of the political situation in countries of the former Yugoslavia in the post-conflict period. Common to almost all authors who were analyzing this subject are negative remarks on the post-war development in parts of the former Yugoslavia, which were mostly affected by the crisis and wars of the 90s. An integral part of the contence in those articles, were recommendations of authors to those international actors who are able to influence the processes in the former Yugoslavia.

  13. Vascular Adaptation: Pattern Formation and Cross Validation between an Agent Based Model and a Dynamical System.

    Science.gov (United States)

    Garbey, Marc; Casarin, Stefano; Berceli, Scott A

    2017-09-21

    Myocardial infarction is the global leading cause of mortality (Go et al., 2014). Coronary artery occlusion is its main etiology and it is commonly treated by Coronary Artery Bypass Graft (CABG) surgery (Wilson et al, 2007). The long-term outcome remains unsatisfactory (Benedetto, 2016) as the graft faces the phenomenon of restenosis during the post-surgery, which consists of re-occlusion of the lumen and usually requires secondary intervention even within one year after the initial surgery (Harskamp, 2013). In this work, we propose an extensive study of the restenosis phenomenon by implementing two mathematical models previously developed by our group: a heuristic Dynamical System (DS) (Garbey and Berceli, 2013), and a stochastic Agent Based Model (ABM) (Garbey et al., 2015). With an extensive use of the ABM, we retrieved the pattern formations of the cellular events that mainly lead the restenosis, especially focusing on mitosis in intima, caused by alteration in shear stress, and mitosis in media, fostered by alteration in wall tension. A deep understanding of the elements at the base of the restenosis is indeed crucial in order to improve the final outcome of vein graft bypass. We also turned the ABM closer to the physiological reality by abating its original assumption of circumferential symmetry. This allowed us to finely replicate the trigger event of the restenosis, i.e. the loss of the endothelium in the early stage of the post-surgical follow up (Roubos et al., 1995) and to simulate the encroachment of the lumen in a fashion aligned with histological evidences (Owens et al., 2015). Finally, we cross-validated the two models by creating an accurate matching procedure. In this way we added the degree of accuracy given by the ABM to a simplified model (DS) that can serve as powerful predictive tool for the clinic. Copyright © 2017 Elsevier Ltd. All rights reserved.

  14. CO-ANALYSIS OF SOLAR MICROWAVE AND HARD X-RAY SPECTRAL EVOLUTIONS. I. IN TWO FREQUENCY OR ENERGY RANGES

    International Nuclear Information System (INIS)

    Song Qiwu; Huang Guangli; Nakajima, Hiroshi

    2011-01-01

    Solar microwave and hard X-ray spectral evolutions are co-analyzed in the 2000 June 10 and 2002 April 10 flares, and are simultaneously observed by the Owens-Valley Solar Array in the microwave band and by Yohkoh/Hard X-ray Telescope or RHESSI in the hard X-ray band, with multiple subpeaks in their light curves. The microwave and hard X-ray spectra are fitted by a power law in two frequency ranges of the optical thin part and two photon energy ranges, respectively. Similar to an earlier event in Shao and Huang, the well-known soft-hard-soft pattern of the lower energy range changed to the hard-soft-hard (HSH) pattern of the higher energy range during the spectral evolution of each subpeak in both hard X-ray flares. This energy dependence is actually supported by a positive correlation between the overall light curves and spectral evolution in the lower energy range, while it becomes an anti-correlation in the higher energy range. Regarding microwave data, the HSH pattern appears in the spectral evolution of each subpeak in the lower frequency range, which is somewhat similar to Huang and Nakajima. However, it returns back to the well-known pattern of soft-hard-harder for the overall spectral evolution in the higher frequency range of both events. This frequency dependence is confirmed by an anti-correlation between the overall light curves and spectral evolution in the lower frequency range, but it becomes a positive correlation in the higher frequency range. The possible mechanisms are discussed, respectively, for reasons why hard X-ray and microwave spectral evolutions have different patterns in different energy and frequency intervals.

  15. You are my teachers.

    Science.gov (United States)

    Edlich, Richard F

    2005-01-01

    Dr. Owen Wangensteen reminded Dr. Edlich that the chief responsibility of a teacher is to create an atmosphere friendly to learning. Dr Wangensteen indicated that the role of professor has been defined as that of teacher, clinician, and investigator. He then indicated that two more responsibilities must be added: (1) sideline cheerleader and (2) regimental water carrier. Above all those enumerated functions, he believed that the most important concern of a professor is to create an atmosphere friendly to learning. He/she must have the willingness to recognize every type of talent and ability and to encourage men/women of promise. He must be the professor of the open door, easily accessible to students, residents, and associates. The major goal of Dr. Edlich's comments, as he receives the Distinguished Medical Alumni Award from The Minneapolis Medical Alumni Association (Minneapolis, Minnesota, USA) is to acknowledge his distinguished colleagues and friends who have served as his teachers during his academic career. They include the following individuals: Theodore J. Edlich, III, President of Total Action Against Poverty; Elizabeth C. Edlic, Cofounder/Chairman and Chief Executive Officer of OneWorldLive; Richard F. Edlich, Jr., President of Edlich Realty; Rachel C. Edlich, Executive Vice President and Cofounder of OneWorldLive; William B. Long, III, MD, President and Medical Director of Trauma Specialists LLP; William P. Magee, MD, Cofounder and Director of Operation Smile; John Barrow, President of Coolibar Incorporated; Mary M. Barrow, Cofounder of Coolibar Incorporated; Kathryne L. Winters, Website Manager and Senior Research Assistant; Lise Borel, DDS, Independent Pharmaceutical/Biotechnical Consultant; Mary Jude Cox, MD, Board Certified Glaucoma Specialist, Teaching Staff at Wills Eye Hospital Glaucoma Service; John Wish, PhD, Member of the Board of The Association of Air Medical Services, Director of the Research Committee; and Dr. Andrew J. Gear, Plastic

  16. Aluminum metal surface cleaning and activation by atmospheric-pressure remote plasma

    Energy Technology Data Exchange (ETDEWEB)

    Muñoz, J., E-mail: jmespadero@uco.es; Bravo, J.A.; Calzada, M.D.

    2017-06-15

    Highlights: • Atmospheric-pressure postdischarges have been applied on aluminium surfaces. • The outer hydrocarbon layer is reduced by the action of the postdischarge. • The treatment promotes the appearance of hydrophilic OH radicals in the surface. • Effectivity for distances up to 5 cm allows for treating irregular surfaces. • Ageing in air due to the disappearance of OH radicals has been reported. - Abstract: The use of the remote plasma (postdischarge) of argon and argon-nitrogen microwave plasmas for cleaning and activating the surface of metallic commercial aluminum samples has been studied. The influence of the nitrogen content and the distance between the treated samples and the end of the discharge on the hydrophilicity and the surface energy has been analyzed by means of the sessile drop technique and the Owens-Wendt method. A significant increase in the hydrophilicity has been noted in the treated samples, together with an increase in the surface energy from values around 37 mJ/m{sup 2} to 77 mJ/m{sup 2}. Such increase weakly depends on the nitrogen content of the discharge, and the effectivity of the treatment extends to distances up to 5 cm from the end of the discharge, much longer than those reported in other plasma-based treatments. The analysis of the treated samples using X-ray photoelectron spectroscopy reveals that such increase in the surface energy takes place due to a reduction of the carbon content and an increase in the amount of OH radicals in the surface. These radicals tend to disappear within 24–48 h after the treatment when the samples are stored in contact with ambient air, resulting in the ageing of the treated surface and a partial retrieval of the hydrophobicity of the surface.

  17. DECIPHERING THE IONIZED GAS CONTENT IN THE MASSIVE STAR-FORMING COMPLEX G75.78+0.34

    Energy Technology Data Exchange (ETDEWEB)

    Sanchez-Monge, Alvaro [Osservatorio Astrofisico di Arcetri, INAF, Largo E. Fermi 5, I-50125 Firenze (Italy); Kurtz, Stan; Lizano, Susana [Centro de Radioastronomia y Astrofisica, Universidad Nacional Autonoma de Mexico, Apdo. Postal 3-72, 58090, Morelia, Michoacan (Mexico); Palau, Aina [Institut de Ciencies de l' Espai (CSIC-IEEC), Campus UAB-Facultat de Ciencies, Torre C5p 2, E-08193 Bellaterra, Catalunya (Spain); Estalella, Robert [Dpt d' Astronomia i Meteorologia (IEEC-UB), Institut de Ciencies del Cosmos, Universitat de Barcelona, Marti i Franques, 1, E-08028 Barcelona (Spain); Shepherd, Debra [NRAO, P.O. Box O, Socorro, NM 87801-0387 (United States); Franco, Jose [Instituto de Astronomia, Universidad Nacional Autonoma de Mexico, Apdo. Postal 70-264, 04510 Mexico, D.F. (Mexico); Garay, Guido, E-mail: asanchez@arcetri.astro.it [Departamento de Astronomia, Universidad de Chile, Camino el Observatorio 1515, Las Condes, Santiago (Chile)

    2013-04-01

    We present subarcsecond observations toward the massive star-forming region G75.78+0.34. We used the Very Large Array to study the centimeter continuum and H{sub 2}O and CH{sub 3}OH maser emission, and the Owens Valley Radio Observatory and Submillimeter Array to study the millimeter continuum and recombination lines (H40{alpha} and H30{alpha}). We found radio continuum emission at all wavelengths, coming from three components: (1) a cometary ultracompact (UC) H II region with an electron density {approx}3.7 Multiplication-Sign 10{sup 4} cm{sup -3}, excited by a B0 type star, and with no associated dust emission; (2) an almost unresolved UCH II region (EAST), located {approx}6'' to the east of the cometary UCH II region, with an electron density {approx}1.3 Multiplication-Sign 10{sup 5} cm{sup -3}, and associated with a compact dust clump detected at millimeter and mid-infrared wavelengths; and (3) a compact source (CORE), located {approx}2'' to the southwest of the cometary arc, with a flux density increasing with frequency, and embedded in a dust condensation of 30 M{sub Sun }. The CORE source is resolved into two compact and unresolved sources which can be well fit by two homogeneous hypercompact H II regions each one photoionized by a B0.5 zero-age main sequence star, or by free-free radiation from shock-ionized gas resulting from the interaction of a jet/outflow system with the surrounding environment. The spatial distribution and kinematics of water masers close to the CORE-N and S sources, together with excess emission at 4.5 {mu}m and the detected dust emission, suggest that the CORE source is a massive protostar driving a jet/outflow.

  18. Resting energy expenditure prediction in recreational athletes of 18-35 years: confirmation of Cunningham equation and an improved weight-based alternative.

    Science.gov (United States)

    ten Haaf, Twan; Weijs, Peter J M

    2014-01-01

    Resting energy expenditure (REE) is expected to be higher in athletes because of their relatively high fat free mass (FFM). Therefore, REE predictive equation for recreational athletes may be required. The aim of this study was to validate existing REE predictive equations and to develop a new recreational athlete specific equation. 90 (53 M, 37 F) adult athletes, exercising on average 9.1 ± 5.0 hours a week and 5.0 ± 1.8 times a week, were included. REE was measured using indirect calorimetry (Vmax Encore n29), FFM and FM were measured using air displacement plethysmography. Multiple linear regression analysis was used to develop a new FFM-based and weight-based REE predictive equation. The percentage accurate predictions (within 10% of measured REE), percentage bias, root mean square error and limits of agreement were calculated. Results: The Cunningham equation and the new weight-based equation REE(kJ / d) = 49.940* weight(kg) + 2459.053* height(m) - 34.014* age(y) + 799.257* sex(M = 1,F = 0) + 122.502 and the new FFM-based equation REE(kJ / d) = 95.272*FFM(kg) + 2026.161 performed equally well. De Lorenzo's equation predicted REE less accurate, but better than the other generally used REE predictive equations. Harris-Benedict, WHO, Schofield, Mifflin and Owen all showed less than 50% accuracy. For a population of (Dutch) recreational athletes, the REE can accurately be predicted with the existing Cunningham equation. Since body composition measurement is not always possible, and other generally used equations fail, the new weight-based equation is advised for use in sports nutrition.

  19. Exact nonparametric confidence bands for the survivor function.

    Science.gov (United States)

    Matthews, David

    2013-10-12

    A method to produce exact simultaneous confidence bands for the empirical cumulative distribution function that was first described by Owen, and subsequently corrected by Jager and Wellner, is the starting point for deriving exact nonparametric confidence bands for the survivor function of any positive random variable. We invert a nonparametric likelihood test of uniformity, constructed from the Kaplan-Meier estimator of the survivor function, to obtain simultaneous lower and upper bands for the function of interest with specified global confidence level. The method involves calculating a null distribution and associated critical value for each observed sample configuration. However, Noe recursions and the Van Wijngaarden-Decker-Brent root-finding algorithm provide the necessary tools for efficient computation of these exact bounds. Various aspects of the effect of right censoring on these exact bands are investigated, using as illustrations two observational studies of survival experience among non-Hodgkin's lymphoma patients and a much larger group of subjects with advanced lung cancer enrolled in trials within the North Central Cancer Treatment Group. Monte Carlo simulations confirm the merits of the proposed method of deriving simultaneous interval estimates of the survivor function across the entire range of the observed sample. This research was supported by the Natural Sciences and Engineering Research Council (NSERC) of Canada. It was begun while the author was visiting the Department of Statistics, University of Auckland, and completed during a subsequent sojourn at the Medical Research Council Biostatistics Unit in Cambridge. The support of both institutions, in addition to that of NSERC and the University of Waterloo, is greatly appreciated.

  20. Millimeter Wave Spectrum of the Two Monosulfur Derivatives of Methyl Formate: s- and O-Methyl Thioformate, in the Ground and the First Excited Torsional States

    Science.gov (United States)

    Jabri, Atef; Motiyenko, R. A.; Margulès, L.; Guillemin, J.-C.; Alekseev, E. A.; Kleiner, Isabelle; Tercero, Belén; Cernicharo, Jose

    2017-06-01

    Methyl formate CH_{3}OC(O)H is a relatively abundant component of the interstellar medium (ISM). Thus, we decided to study its sulfur derivatives as they can be reasonably proposed for detection in the ISM. In fact there is two relatively stable isomers for methyl thioformate, S-Methyl thioformate CH_{3}SC(O)H and O-Methyl thiofomate CH_{3}OC(S)H. Theoretical investigations on these molecules have been done recently by Senent et al.. Previous experimental investigations were performed only for the S-Methyl thioformate in the 10-41 GHz spectral range by Jones et al. and Caminati et al.. For the present study both isomers were synthesized and the millimeter wave spectrum was then recorded for the first time from 150 to 660 GHz with the Lille's spectrometer based on solid-state sources. The internal rotation effect on the millimeter wave spectra is not the same for these two molecules because the barrier height to internal rotation is relatively low for the S- isomer (V_{3} ≈ 140 \\wn) and rather high for the O- isomer (V_{3} ≈ 700 \\wn). Analysis of the ground and excited torsional states performed with the BELGI-C_{s} code will be presented and discussed. We will provide the search for methyl thioformate in different sources. E. Chruchwell, G. Winnewisser, A&A, 45, 229 (1975) M. L. Senent, C. Puzzarini, M. Hochlaf, R. Dominguez-Gomez, and M. Carvajal, J. Chem. Phys., 141, 104303 (2014) G. I. L. Jones, D. G. Lister, N. L. Owen, J. Mol. Spectrosc., 60, 348 (1976) W. Caminati, B. P. V. Eijck, D. G. Lister, J. Mol. Spectrosc., 90, 15 (1981) J. T. Hougen, I. Kleiner, and M. Godefroid, J. Mol. Spectrosc. 163, 559 (1994)

  1. Basis set expansion for inverse problems in plasma diagnostic analysis

    Energy Technology Data Exchange (ETDEWEB)

    Jones, B.; Ruiz, C. L. [Sandia National Laboratories, PO Box 5800, Albuquerque, New Mexico 87185 (United States)

    2013-07-15

    A basis set expansion method [V. Dribinski, A. Ossadtchi, V. A. Mandelshtam, and H. Reisler, Rev. Sci. Instrum. 73, 2634 (2002)] is applied to recover physical information about plasma radiation sources from instrument data, which has been forward transformed due to the nature of the measurement technique. This method provides a general approach for inverse problems, and we discuss two specific examples relevant to diagnosing fast z pinches on the 20–25 MA Z machine [M. E. Savage, L. F. Bennett, D. E. Bliss, W. T. Clark, R. S. Coats, J. M. Elizondo, K. R. LeChien, H. C. Harjes, J. M. Lehr, J. E. Maenchen, D. H. McDaniel, M. F. Pasik, T. D. Pointon, A. C. Owen, D. B. Seidel, D. L. Smith, B. S. Stoltzfus, K. W. Struve, W. A. Stygar, L. K. Warne, J. R. Woodworth, C. W. Mendel, K. R. Prestwich, R. W. Shoup, D. L. Johnson, J. P. Corley, K. C. Hodge, T. C. Wagoner, and P. E. Wakeland, in Proceedings of the Pulsed Power Plasma Sciences Conference (IEEE, 2007), p. 979]. First, Abel inversion of time-gated, self-emission x-ray images from a wire array implosion is studied. Second, we present an approach for unfolding neutron time-of-flight measurements from a deuterium gas puff z pinch to recover information about emission time history and energy distribution. Through these examples, we discuss how noise in the measured data limits the practical resolution of the inversion, and how the method handles discontinuities in the source function and artifacts in the projected image. We add to the method a propagation of errors calculation for estimating uncertainties in the inverted solution.

  2. Surface characterization, hemo- and cytocompatibility of segmented poly(dimethylsiloxane-based polyurethanes

    Directory of Open Access Journals (Sweden)

    Pergal Marija V.

    2014-01-01

    Full Text Available Segmented polyurethanes based on poly(dimethylsiloxane, currently used for biomedical applications, have sub-optimal biocompatibility which reduces their efficacy. Improving the endothelial cell attachment and blood-contacting properties of PDMS-based copolymers would substantially improve their clinical applications. We have studied the surface properties and in vitro biocompatibility of two series of segmented poly(urethane-dimethylsiloxanes (SPU-PDMS based on hydroxypropyl- and hydroxyethoxypropyl- terminated PDMS with potential applications in blood-contacting medical devices. SPU-PDMS copolymers were characterized by contact angle measurements, surface free energy determination (calculated using the van Oss-Chaudhury-Good and Owens-Wendt methods, and atomic force microscopy. The biocompatibility of copolymers was evaluated using an endothelial EA.hy926 cell line by direct contact assay, before and after pre-treatment of copolymers with multicomponent protein mixture, as well as by a competitive blood-protein adsorption assay. The obtained results suggested good blood compatibility of synthesized copolymers. All copolymers exhibited good resistance to fibrinogen adsorption and all favored albumin adsorption. Copolymers based on hydroxyethoxypropyl-PDMS had lower hydrophobicity, higher surface free energy, and better microphase separation in comparison with hydroxypropyl-PDMS-based copolymers, which promoted better endothelial cell attachment and growth on the surface of these polymers as compared to hydroxypropyl-PDMS-based copolymers. The results showed that SPU-PDMS copolymers display good surface properties, depending on the type of soft PDMS segments, which can be tailored for biomedical application requirements such as biomedical devices for short- and long-term uses. [Projekat Ministarstva nauke Republike Srbije, br. 172062

  3. Managing the Moon Program: Lessons Learned from Project Apollo

    Science.gov (United States)

    1999-01-01

    There have been many detailed historical studies of the process of deciding on and executing the Apollo lunar landing during the 1960s and early 1970s. From the announcement of President John F Kennedy on May 25, 1961, of his decision to land an American on the Moon by the end of the decade, through the first lunar landing on July 20, 1969, on to the last of six successful Moon landings with Apollo 17 in December 1972, NASA carried out Project Apollo with enthusiasm and aplomb. While there have been many studies recounting the history of Apollo, at the time of the 30th anniversary of the first lunar landing by Apollo 11, it seems appropriate to revisit the process of large-scale technological management as it related to the lunar mission. Consequently, the NASA History Office has chosen to publish this monograph containing the recollections of key partcipants in the management process. The collective oral history presented here was recorded in 1989 at the Johnson Space Center's Gilruth Recreation Center in Houston, Texas. It includes the recollections of key participants in Apollo's administration, addressing issues such as communication between field centers, the prioritization of technological goals, and the delegation of responsibility. The following people participated: George E. Muller, Owen W. Morris, Maxime A. Faget, Robert R. Gilruth, Christopher C. Kraft, and Howard W. (Bill) Tindall. The valuable perspectives of these individuals deepen and expand our understanding of this important historical event. This is the 14th in a series of special studies prepared by the NASA History Office. The Monographs in Aerospace History series is designed to provide a wide variety of investigations relative to the history of aeronautics and space. These publications are intended to be tightly focused in terms of subject, relatively short in length, and reproduced in an inexpensive format to allow timely and broad dissemination to researchers in aerospace history.

  4. Academy Sharing Knowledge (ASK). The NASA Source for Project Management Magazine, Volume 11, March 2003

    Science.gov (United States)

    2003-01-01

    APPL is a research-based organization that serves NASA program and project managers, as well as project teams, at every level of development. In 1997, APPL was created from an earlier program to underscore the importance that NASA places on project management and project teams through a wide variety of products and services, including knowledge sharing, classroom and online courses, career development guidance, performance support, university partnerships, and advanced technology tools. ASK Magazine grew out of APPL's Knowledge Sharing Initiative. The stories that appear in ASK are written by the 'best of the best' project managers, primarily from NASA, but also from other government agencies and industry. Contributors to this issue include: Teresa Bailey, a librarian at the Jet Propulsion Laboratory, Roy Malone, Deputy Director in the Safety and Mission Assurance (S&MA) Office at the NASA Marshall Space Flight Center (MSFC), W. Scott Cameron, Capital Systems Manager for the Food and Beverage Global Business Unit of Procter and Gamble, Ray Morgan, recent retiree as Vice President of AeroVironment, Inc., Marty Davis, Program Manager of the Geostationary Operational Environmental Satellite (GOES) at the NASA Goddard Space Flight Center (GSFC) in Greenbelt, Maryland, Todd Post, editor of ASK Magazine, and works for EduTech Ltd. in Silver Spring, Maryland, Dr. Owen Gadeken, professor of Engineering Management at the Defense Acquisition University, Ken Schwer, currently the Project Manager of Solar Dynamics Observatory, Dr. Edward Hoffmwan, Director of the NASA Academy of Program and Project Leadership, Frank Snow, a member of the NASA Explorer Program at Goddard Space Flight Center since 1992, Dr. Alexander Laufer, Editor-in-Chief of ASK Magazine and a member of the Advisory Board of the NASA Academy of Program and Project Leadership, Judy Stokley, presently Air Force Program Executive Officer for Weapons in Washington, D.C. and Terry Little, Director of the Kinetic

  5. Emerging ecological datasets with application for modeling North American dust emissions

    Science.gov (United States)

    McCord, S.; Stauffer, N. G.; Garman, S.; Webb, N.

    2017-12-01

    In 2011 the US Bureau of Land Management (BLM) established the Assessment, Inventory and Monitoring (AIM) program to monitor the condition of BLM land and to provide data to support evidence-based management of multi-use public lands. The monitoring program shares core data collection methods with the Natural Resources Conservation Service's (NRCS) National Resources Inventory (NRI), implemented on private lands nationally. Combined, the two programs have sampled >30,000 locations since 2003 to provide vegetation composition, vegetation canopy height, the size distribution of inter-canopy gaps, soil texture and crusting information on rangelands and pasture lands across North America. The BLM implements AIM on more than 247.3 million acres of land across the western US, encompassing major dust source regions of the Chihuahuan, Sonoran, Mojave and Great Basin deserts, the Colorado Plateau, and potential high-latitude dust sources in Alaska. The AIM data are publicly available and can be used to support modeling of land surface and boundary-layer processes, including dust emission. While understanding US dust source regions and emission processes has been of national interest since the 1930s Dust Bowl, most attention has been directed to the croplands of the Great Plains and emission hot spots like Owens Lake, California. The magnitude, spatial extent and temporal dynamics of dust emissions from western dust source areas remain highly uncertain. Here, we use ensemble modeling with empirical and physically-based dust emission schemes applied to AIM monitoring data to assess regional-scale patterns of aeolian sediment mass fluxes and dust emissions. The analysis enables connections to be made between dust emission rates at source and other indicators of ecosystem function at the landscape scale. Emerging ecological datasets like AIM provide new opportunities to evaluate aeolian sediment transport responses to land surface conditions, potential interactions with

  6. Titan

    Science.gov (United States)

    Müller-Wodarg, Ingo; Griffith, Caitlin A.; Lellouch, Emmanuel; Cravens, Thomas E.

    2014-03-01

    Introduction I. C. F. Müller-Wodarg, C. A. Griffith, E. Lellouch and T. E. Cravens; Prologue 1: the genesis of Cassini-Huygens W.-H. Ip, T. Owen and D. Gautier; Prologue 2: building a space flight instrument: a P.I.'s perspective M. Tomasko; 1. The origin and evolution of Titan G. Tobie, J. I. Lunine, J. Monteux, O. Mousis and F. Nimmo; 2. Titan's surface geology O. Aharonson, A. G. Hayes, P. O. Hayne, R. M. Lopes, A. Lucas and J. T. Perron; 3. Thermal structure of Titan's troposphere and middle atmosphere F. M. Flasar, R. K. Achterberg and P. J. Schinder; 4. The general circulation of Titan's lower and middle atmosphere S. Lebonnois, F. M. Flasar, T. Tokano and C. E. Newman; 5. The composition of Titan's atmosphere B. Bézard, R. V. Yelle and C. A. Nixon; 6. Storms, clouds, and weather C. A. Griffith, S. Rafkin, P. Rannou and C. P. McKay; 7. Chemistry of Titan's atmosphere V. Vuitton, O. Dutuit, M. A. Smith and N. Balucani; 8. Titan's haze R. West, P. Lavvas, C. Anderson and H. Imanaka; 9. Titan's upper atmosphere: thermal structure, dynamics, and energetics R. V. Yelle and I. C. F. Müller-Wodarg; 10. Titan's upper atmosphere/exosphere, escape processes, and rates D. F. Strobel and J. Cui; 11. Titan's ionosphere M. Galand, A. J. Coates, T. E. Cravens and J.-E. Wahlund; 12. Titan's magnetospheric and plasma environment J.-E. Wahlund, R. Modolo, C. Bertucci and A. J. Coates.

  7. Using endmembers in AVIRIS images to estimate changes in vegetative biomass

    Science.gov (United States)

    Smith, Milton O.; Adams, John B.; Ustin, Susan L.; Roberts, Dar A.

    1992-01-01

    Field techniques for estimating vegetative biomass are labor intensive, and rarely are used to monitor changes in biomass over time. Remote-sensing offers an attractive alternative to field measurements; however, because there is no simple correspondence between encoded radiance in multispectral images and biomass, it is not possible to measure vegetative biomass directly from AVIRIS images. Ways to estimate vegetative biomass by identifying community types and then applying biomass scalars derived from field measurements are investigated. Field measurements of community-scale vegetative biomass can be made, at least for local areas, but it is not always possible to identify vegetation communities unambiguously using remote measurements and conventional image-processing techniques. Furthermore, even when communities are well characterized in a single image, it typically is difficult to assess the extent and nature of changes in a time series of images, owing to uncertainties introduced by variations in illumination geometry, atmospheric attenuation, and instrumental responses. Our objective is to develop an improved method based on spectral mixture analysis to characterize and identify vegetative communities, that can be applied to multi-temporal AVIRIS and other types of images. In previous studies, multi-temporal data sets (AVIRIS and TM) of Owens Valley, CA were analyzed and vegetation communities were defined in terms of fractions of reference (laboratory and field) endmember spectra. An advantage of converting an image to fractions of reference endmembers is that, although fractions in a given pixel may vary from image to image in a time series, the endmembers themselves typically are constant, thus providing a consistent frame of reference.

  8. The discovery and history of knowledge of natural atmospheric radioactivity

    International Nuclear Information System (INIS)

    Renoux, A.

    1996-01-01

    Everybody knows that the radioactivity was discovered, 100 years ago, by the Frenchman Henri Becquerel at Paris, in Feb. 1896, stemmed from the discovery of X-rays by Roentgen in the preceding year. In 1899, Rutherford was able to show the existence of α and β rays, and in 1900 Villard showed the presence of a third class of rays, the γ rays. The discovery of the rare radioactive gas radon is attributed to P. and M. Curie in 1898 and F. Dorn in 1900. Thoron ( 220 Rn) was discovered by Rutherford and Owens in 1899-1900 and Actinon ( 219 Rn) by Debierne and Geisel about the same time. The radon's radiotoxicity was studied in France since 1904 by Bouchard and Balthazard and in 1924 it was formulated the hypothesis that the great mortality observed in the uranium miners of Schneeberg in Germany and Joachimsthal in Czechoslovakia was maybe due to the radon. But, in fact, Elster and Geitel were the first to see that the radioactivity is present in the atmosphere in about 1901. After this date, many investigations were made (M. Curie, for example), but it is during the fifties and, of course, until today that the most numerous works were developed. In this paper, we speak about the researches of the after second war pioneers: Evans, Wilkening, Kawano, Israel, Junge, Schuman, Bricard... Renoux, Madelaine, Blanc, Fontan, Siksna, Chamberlain, Dyson, Nolan, etc. and the works developed later. Finally, we reach to the nineties, period where the works are particularly directed in the aim of radon and radon progeny indoor, with in particular, many works effectuated in France. (author). 78 refs., 17 figs., 2 tabs

  9. DECIPHERING THE IONIZED GAS CONTENT IN THE MASSIVE STAR-FORMING COMPLEX G75.78+0.34

    International Nuclear Information System (INIS)

    Sánchez-Monge, Álvaro; Kurtz, Stan; Lizano, Susana; Palau, Aina; Estalella, Robert; Shepherd, Debra; Franco, José; Garay, Guido

    2013-01-01

    We present subarcsecond observations toward the massive star-forming region G75.78+0.34. We used the Very Large Array to study the centimeter continuum and H 2 O and CH 3 OH maser emission, and the Owens Valley Radio Observatory and Submillimeter Array to study the millimeter continuum and recombination lines (H40α and H30α). We found radio continuum emission at all wavelengths, coming from three components: (1) a cometary ultracompact (UC) H II region with an electron density ∼3.7 × 10 4 cm –3 , excited by a B0 type star, and with no associated dust emission; (2) an almost unresolved UCH II region (EAST), located ∼6'' to the east of the cometary UCH II region, with an electron density ∼1.3 × 10 5 cm –3 , and associated with a compact dust clump detected at millimeter and mid-infrared wavelengths; and (3) a compact source (CORE), located ∼2'' to the southwest of the cometary arc, with a flux density increasing with frequency, and embedded in a dust condensation of 30 M ☉ . The CORE source is resolved into two compact and unresolved sources which can be well fit by two homogeneous hypercompact H II regions each one photoionized by a B0.5 zero-age main sequence star, or by free-free radiation from shock-ionized gas resulting from the interaction of a jet/outflow system with the surrounding environment. The spatial distribution and kinematics of water masers close to the CORE-N and S sources, together with excess emission at 4.5 μm and the detected dust emission, suggest that the CORE source is a massive protostar driving a jet/outflow.

  10. Leonard F. Peltier, MD, PhD, 1920-2003.

    Science.gov (United States)

    Reckling, Frederick W; Lo Vecchio, Janolyn G; Reckling, JoAnn B

    2004-05-01

    Leonard F. Peltier, MD, PhD, was an orthopaedic surgeon, academician, administrator, laboratory investigator, historian, and mentor. His career spanned nearly six decades, beginning with graduate education at the University of Minnesota (UM) under the auspices of Owen H. Wangensteen, MD, PhD. In addition to obtaining a PhD in physiology in the UM Graduate School, he completed general and orthopaedic surgery residencies and attained board certification in each specialty. He served in the US Army Occupation Force Medical Corps in Germany just after World War II. In 1957, at 37 years old, he assumed the chairmanship of the orthopaedic training program at the University of Kansas. In 1971, he couldn't resist the opportunity to become one of the founding members of the "start-up" University of Arizona College of Medicine, accepting an appointment as chair of the new orthopaedic training program, where he remained until his retirement in 1990. He took clinical problems to the laboratory, and made important scientific contributions, particularly in the area of fat embolism and in using calcium sulfate (plaster of Paris) to fill bone defects. He served on governing boards of national professional organizations and presided over the American Association for the Surgery of Trauma from 1980-1981. Throughout his career, he was fascinated by, and published extensively in, the history of medicine arena. Known fondly as "the professor" to many of his residents and colleagues, he had a pragmatic, honest, upbeat, and often humorous approach to life's challenges, valuing personal integrity above other virtues. He explored various eclectic interests far beyond his professional contributions while maintaining his family as a central priority. With his exemplary productivity and interests in the surgical and laboratory sciences, history of medicine, appreciation of fine arts, and perceptive and effective interactions with family, friends, patients, and colleagues, the memory of Leonard

  11. Time Delay Mechanical-noise Cancellation (TDMC) to Provide Order of Magnitude Improvements in Radio Science Observations

    Science.gov (United States)

    Atkinson, D. H.; Babuscia, A.; Lazio, J.; Asmar, S.

    2017-12-01

    Many Radio Science investigations, including the determinations of planetary masses, measurements of planetary atmospheres, studies of the solar wind, and solar system tests of relativistic gravity, rely heavily on precision Doppler tracking. Recent and currently proposed missions such as VERITAS, Bepi Colombo, Juno have shown that the largest error source in the precision Doppler tracking data is noise in the Doppler system. This noise is attributed to un-modeled motions of the ground antenna's phase center and is commonly referred to as "antenna mechanical noise." Attempting to reduce this mechanical noise has proven difficult since the deep space communications antennas utilize large steel structures that are already optimized for mechanical stability. Armstrong et al. (2008) have demonstrated the Time Delay Mechanical-noise Cancellation (TDMC) concept using Goldstone DSN antennas (70 m & 34 m) and the Cassinispacecraft to show that the mechanical noise of the 70 m antenna could be suppressed when two-way Doppler tracking from the 70 m antenna and the receive-only Doppler data from the smaller, stiffer 34 m antenna were combined with suitable delays. The proof-of-concept confirmed that the mechanical noise in the final Doppler observable was reduced to that of the stiffer, more stable antenna. Caltech's Owens Valley Radio Observatory (OVRO) near Bishop, CA now has six 10.4 m diameter antennas, a consequence of the closure of Combined Array for Research in Millimeter Astronomy (CARMA). In principle, a 10 m antenna can lead to an order-of-magnitude improvement for the mechanical noise correction, as the smaller dish offers better mechanical stability compared to a DSN 34-m antenna. These antennas also have existing Ka-band receiving systems, and preliminary discussions with the OVRO staff suggest that much of the existing signal path could be used for Radio Science observations.

  12. Localized Electrical Heating System for Various Types of Buildings

    Science.gov (United States)

    Shelehov, I. Y.; Smirnov, E. I.; Inozemsev, V. P.

    2017-11-01

    The article presents an overview of the factors determining the establishment of zones with high temperature in industrial, public and administrative buildings. The authors state the task on the improvement of the electric energy use efficiency and cost savings associated with the heating of these buildings by infrared electric heater devices. Materials and methods: The experiments were conducted in a room with the sizes of 3x6 m2 with a ceiling height of 3 m, the concrete floor was covered with laminate, in which increments of 250 mm were drilled and installed the thermocouple. In the process, had used the patented heating element with distributed heating layer. Signals from the thermocouples were recorded by instruments of the firm “ARIES” brand TPM138 with the standard software delivered together with devices (Owen Process Manager). The obtained distributions of the temperature fields were imported into MS Excel. Control voltage, current consumption, power was carried out by the device of firm “ARIES” brand of IMS. The results of the study: the article defines the purpose of the study and carried out the characterization of infrared heaters with various types of heating elements. The authors detail the main parameters of different types of infrared heaters, evaluated its possibility for application in other areas where the need to create areas of increased temperature. Discussion and conclusion: the result of this work it was determined that heating appliances that use patented heating element with distributed heating layer, improve thermal performance and bring you maximum comfort at a much greater distance compared to existing similar devices

  13. A Large-scale Plume in an X-class Solar Flare

    Energy Technology Data Exchange (ETDEWEB)

    Fleishman, Gregory D.; Nita, Gelu M.; Gary, Dale E. [Physics Department, Center for Solar-Terrestrial Research, New Jersey Institute of Technology Newark, NJ, 07102-1982 (United States)

    2017-08-20

    Ever-increasing multi-frequency imaging of solar observations suggests that solar flares often involve more than one magnetic fluxtube. Some of the fluxtubes are closed, while others can contain open fields. The relative proportion of nonthermal electrons among those distinct loops is highly important for understanding energy release, particle acceleration, and transport. The access of nonthermal electrons to the open field is also important because the open field facilitates the solar energetic particle (SEP) escape from the flaring site, and thus controls the SEP fluxes in the solar system, both directly and as seed particles for further acceleration. The large-scale fluxtubes are often filled with a tenuous plasma, which is difficult to detect in either EUV or X-ray wavelengths; however, they can dominate at low radio frequencies, where a modest component of nonthermal electrons can render the source optically thick and, thus, bright enough to be observed. Here we report the detection of a large-scale “plume” at the impulsive phase of an X-class solar flare, SOL2001-08-25T16:23, using multi-frequency radio data from Owens Valley Solar Array. To quantify the flare’s spatial structure, we employ 3D modeling utilizing force-free-field extrapolations from the line of sight SOHO /MDI magnetograms with our modeling tool GX-Simulator. We found that a significant fraction of the nonthermal electrons that accelerated at the flare site low in the corona escapes to the plume, which contains both closed and open fields. We propose that the proportion between the closed and open fields at the plume is what determines the SEP population escaping into interplanetary space.

  14. Three-dimensional Forward-fit Modeling of the Hard X-Ray and Microwave Emissions of the 2015 June 22 M6.5 Flare

    Science.gov (United States)

    Kuroda, Natsuha; Gary, Dale E.; Wang, Haimin; Fleishman, Gregory D.; Nita, Gelu M.; Jing, Ju

    2018-01-01

    The well-established notion of a “common population” of the accelerated electrons simultaneously producing the hard X-ray (HXR) and microwave (MW) emission during the flare impulsive phase has been challenged by some studies reporting the discrepancies between the HXR-inferred and MW-inferred electron energy spectra. The traditional methods of spectral inversion have some problems that can be mainly attributed to the unrealistic and oversimplified treatment of the flare emission. To properly address this problem, we use a nonlinear force-free field (NLFFF) model extrapolated from an observed photospheric magnetogram as input to the three-dimensional, multiwavelength modeling platform GX Simulator and create a unified electron population model that can simultaneously reproduce the observed HXR and MW observations. We model the end of the impulsive phase of the 2015 June 22 M6.5 flare and constrain the modeled electron spatial and energy parameters using observations made by the highest-resolving instruments currently available in two wavelengths, the Reuven Ramaty High Energy Solar Spectroscopic Imager for HXR and the Expanded Owens Valley Solar Array for MW. Our results suggest that the HXR-emitting electron population model fits the standard flare model with a broken power-law spectrum ({E}{break}∼ 200 keV) that simultaneously produces the HXR footpoint emission and the MW high-frequency emission. The model also includes an “HXR-invisible” population of nonthermal electrons that are trapped in a large volume of magnetic field above the HXR-emitting loops, which is observable by its gyrosynchrotron radiation emitting mainly in the MW low-frequency range.

  15. Annual, lunar and diel reproductive periodicity of a spawning aggregation of snapper Pagrus auratus (Sparidae) in a marine embayment on the lower west coast of Australia.

    Science.gov (United States)

    Wakefield, C B

    2010-10-01

    Ichthyoplankton sampling and ovarian characteristics were used to elucidate whether the reproductive cycles of a spawning aggregation of snapper Pagrus auratus in a nearshore marine embayment were temporally and spatially specific and related with environmental conditions. The reproductive dynamics of this aggregation were studied over four consecutive years (2001-2004). Spawning occurred between September and January each year, when water temperatures ranged from 15·8 to 23·1° C. In all 4 years, the cumulative egg densities in Cockburn Sound were highest when water temperatures were between the narrow range of 19-20° C. The spawning fraction of females was monthly bimodal and peaked during new and the full moons at 96-100% and c. 75%, respectively. The backcalculated ages of P. auratus eggs collected from 16 ichthyoplankton surveys demonstrated that P. auratus in Cockburn Sound spawn at night during the 3 h following the high tide. The spatial distributions of P. auratus eggs in Cockburn Sound during the peak reproductive period in all 4 years were consistent, further implying spawning was temporally and spatially specific. High concentrations of recently spawned eggs (8-16 h old) demonstrated spawning also occurred within the adjacent marine embayments of Owen Anchorage and Warnbro Sound. Water circulation in Cockburn and Warnbro Sounds resembled an eddy that was most prominent during the period of highest egg densities, thereby facilitating the retention of eggs in these areas. The reproductive cycles of P. auratus described in this study have assisted managers with the appropriate temporal and spatial scale for a closed fishing season to protect these spawning aggregations. © 2010 The Author. Journal compilation © 2010 The Fisheries Society of the British Isles.

  16. OPACOS: OVRO POST-AGB CO (1-0) EMISSION SURVEY. I. DATA AND DERIVED NEBULAR PARAMETERS

    Energy Technology Data Exchange (ETDEWEB)

    Sanchez Contreras, C. [Centro de Astrobiologia, INTA-CSIC, E-28691 Villanueva de la Canada, Madrid (Spain); Sahai, R. [Jet Propulsion Laboratory, MS 183-900, California Institute of Technology, Pasadena, CA 91109 (United States)

    2012-11-15

    We have performed interferometric observations of the {sup 12}CO (J = 1-0) emission in a sample of 27 objects spanning different evolutionary stages from the late asymptotic giant branch (late-AGB), through the post-AGB (pAGB) phase, and to the planetary nebula (PN) stage, but dominated by pAGB objects and young PNs ({>=}81%). In this paper (the first in a series) we present our maps and main nebular properties derived for the whole sample. Observations were performed with the Caltech Millimeter Array at the Owens Valley Radio Observatory. The angular resolution obtained in our survey ranges between 2.''3 and 10.''7. The {sup 13}CO and C{sup 18}O (J = 1-0) transitions as well as the 2.6 mm continuum emission have also been observed in several objects. The detection statistics in the {sup 12}CO, {sup 13}CO, C{sup 18}O transitions and 2.6 mm continuum are 89%, 83%, 0%, and 37%, respectively. We report first detections of {sup 12}CO (J = 1-0) emission in 13 targets and confirm emission from several previous marginal detections. The molecular envelope probed by {sup 12}CO (J = 1-0) emission is extended for 18 (out of 24) sources; envelope asymmetries and/or velocity gradients are found in most extended objects. Our data have been used to derive accurate target coordinates and systemic velocities and to characterize the envelope size, morphology, and kinematics. We also provide an estimate of the total molecular mass and the fraction of it contained in fast flows, lower limits to the linear momentum and to the isotopic {sup 12}C/{sup 13}C ratio, as well as the AGB mass-loss rate and timescale for sources with extended CO emission.

  17. "Comets, Origins, and Life:” Promoting Interdisciplinary Science in Secondary and Middle Schools in the Washington, DC and Saint Louis, MO Metro Areas

    Science.gov (United States)

    Bonev, Boncho; Gibb, E. L.; Brewer, G.; Novak, R.; Mandell, A. M.; Seaton, P.; Price, J.; Long, T.; Bahar, S.; Edwards, S. S.

    2010-10-01

    Developing a full-year program to support secondary and middle school science education is a key part of the "broader impact” component of NSF Grant AST- 0807939 (PI/Co-PI Bonev/Gibb). This program is realized at two stages: (1) a professional development course for teachers is offered during the summer; (2) during the subsequent academic year we collaborate with educators in lessons planning or curriculum development as demanded in their particular schools. We successfully offered the course “ Comets, Origins, and Life: Interdisciplinary Science in the Secondary Classroom ” (45 contact hours; 3 credits) in the summers of 2009 and 2010 at the Catholic University of America. This class demonstrates how a complex hypothesis - for the delivery of water and prebiotic organic matter to early Earth - is being tested by integrating astronomy, physics, chemistry, biology, and Earth and planetary science. Collaborations with participants from the 2009 class include curriculum development within the Earth Science program in Prince Georges county, MD and strengthening science in Washington DC public schools. Our next step is to offer our class in the Saint Louis, MO area. The main challenge in our work with educators is not to present them with "interesting information", but to fit what we offer within the very particular curriculum expectations of their school districts. These curriculum expectations often vary from district to district and sometimes from year to year. We gratefully acknowledge the support by the NSF, allowing to fully integrate our research area into education. We also gratefully acknowledge our collaborations with the Goddard Center for Astrobiology and the Howard B. Owens Science Center (both in MD) in developing our class curriculum. Educators interested in this program can contact Boncho Bonev (bonev@cua.edu; for the Washington DC and Baltimore, MD areas) and Erika Gibb (gibbe@umsl.edu; for the Saint Louis, MO area).

  18. THE RADIO/GAMMA-RAY CONNECTION IN ACTIVE GALACTIC NUCLEI IN THE ERA OF THE FERMI LARGE AREA TELESCOPE

    International Nuclear Information System (INIS)

    Ackermann, M.; Ajello, M.; Allafort, A.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Angelakis, E.; Axelsson, M.; Baldini, L.; Bellazzini, R.; Bregeon, J.; Brez, A.; Ballet, J.; Barbiellini, G.; Bastieri, D.; Bonamente, E.; Bouvier, A.; Brigida, M.; Bruel, P.

    2011-01-01

    We present a detailed statistical analysis of the correlation between radio and gamma-ray emission of the active galactic nuclei (AGNs) detected by Fermi during its first year of operation, with the largest data sets ever used for this purpose. We use both archival interferometric 8.4 GHz data (from the Very Large Array and ATCA, for the full sample of 599 sources) and concurrent single-dish 15 GHz measurements from the Owens Valley Radio Observatory (OVRO, for a sub sample of 199 objects). Our unprecedentedly large sample permits us to assess with high accuracy the statistical significance of the correlation, using a surrogate data method designed to simultaneously account for common-distance bias and the effect of a limited dynamical range in the observed quantities. We find that the statistical significance of a positive correlation between the centimeter radio and the broadband (E > 100 MeV) gamma-ray energy flux is very high for the whole AGN sample, with a probability of -7 for the correlation appearing by chance. Using the OVRO data, we find that concurrent data improve the significance of the correlation from 1.6 x 10 -6 to 9.0 x 10 -8 . Our large sample size allows us to study the dependence of correlation strength and significance on specific source types and gamma-ray energy band. We find that the correlation is very significant (chance probability -7 ) for both flat spectrum radio quasars and BL Lac objects separately; a dependence of the correlation strength on the considered gamma-ray energy band is also present, but additional data will be necessary to constrain its significance.

  19. Galileo's Medicean Moons (IAU S269)

    Science.gov (United States)

    Barbieri, Cesare; Chakrabarti, Supriya; Coradini, Marcello; Lazzarin, Monica

    2010-11-01

    Preface; 1. Galileo's telescopic observations: the marvel and meaning of discovery George V. Coyne, S. J.; 2. Popular perceptions of Galileo Dava Sobel; 3. The slow growth of humility Tobias Owen and Scott Bolton; 4. A new physics to support the Copernican system. Gleanings from Galileo's works Giulio Peruzzi; 5. The telescope in the making, the Galileo first telescopic observations Alberto Righini; 6. The appearance of the Medicean Moons in 17th century charts and books. How long did it take? Michael Mendillo; 7. Navigation, world mapping and astrometry with Galileo's moons Kaare Aksnes; 8. Modern exploration of Galileo's new worlds Torrence V. Johnson; 9. Medicean Moons sailing through plasma seas: challenges in establishing magnetic properties Margaret G. Kivelson, Xianzhe Jia and Krishan K. Khurana; 10. Aurora on Jupiter: a magnetic connection with the Sun and the Medicean Moons Supriya Chakrabarti and Marina Galand; 11. Io's escaping atmosphere: continuing the legacy of surprise Nicholas M. Schneider; 12. The Jovian Rings Wing-Huen Ip; 13. The Juno mission Scott J. Bolton and the Juno Science Team; 14. Seeking Europa's ocean Robert T. Pappalardo; 15. Europa lander mission: a challenge to find traces of alien life Lev Zelenyi, Oleg Korablev, Elena Vorobyova, Maxim Martynov, Efraim L. Akim and Alexander Zakahrov; 16. Atmospheric moons Galileo would have loved Sushil K. Atreya; 17. The study of Mercury Louise M. Prockter and Peter D. Bedini; 18. Jupiter and the other giants: a comparative study Thérèse Encrenaz; 19. Spectroscopic and spectrometric differentiation between abiotic and biogenic material on icy worlds Kevin P. Hand, Chris McKay and Carl Pilcher; 20. Other worlds, other civilizations? Guy Consolmagno, S. J.; 21. Concluding remarks Roger M. Bonnet; Posters; Author index; Object index.

  20. Interfacial Properties of Bamboo Fiber-Reinforced High-Density Polyethylene Composites by Different Methods for Adding Nano Calcium Carbonate

    Directory of Open Access Journals (Sweden)

    Cuicui Wang

    2017-11-01

    Full Text Available The focus of this study was to observe the effect of nano calcium carbonate (CaCO3 modification methods on bamboo fiber (BF used in BF-reinforced high-density polyethylene (HDPE composites manufactured by extrusion molding. Two methods were used to introduce the nano CaCO3 into the BF for modification; the first was blending modification (BM and the second was impregnation modification (IM. In order to determine the effects of the modification methods, the water absorption, surface free energy and interfacial properties of the unmodified composites were compared to those of the composites made from the two modification methods. The results revealed that the percentage increase in the weight of the composite treated by nano CaCO3 decreased and that of the IMBF/HDPE composite was the lowest over the seven months of time. The results obtained by the acid-base model according to the Lewis and Owens-Wendt- Rabel-Kaelble (OWRK equations indicated that the surface energy of the composites was between 40 and 50 mJ/m2. When compared to the control sample, the maximum storage modulus (E′max of the BMBF/HDPE and IMBF/HDPE composites increased 1.43- and 1.53-fold, respectively. The values of the phase-to-phase interaction parameter B and the k value of the modified composites were higher than those of the unmodified composites, while the apparent activation energy Ea and interface parameter A were lower in the modified composites. It can be concluded that nano CaCO3 had an effect on the interfacial properties of BF-reinforced HDPE composites, and the interface bonding between IMBF and HDPE was greatest among the composites.

  1. GAMMA-RAY EMISSION FROM TWO BLAZARS BEHIND THE GALACTIC PLANE: B2013+370 AND B2023+336

    International Nuclear Information System (INIS)

    Kara, E.; Errando, M.; Aliu, E.; Mukherjee, R.; Max-Moerbeck, W.; Readhead, A. C. S.; Richards, J. L.; Böttcher, M.; Fortin, P.; Halpern, J. P.

    2012-01-01

    B2013+370 and B2023+336 are two blazars at low-galactic latitude that were previously proposed to be the counterparts for the EGRET unidentified sources 3EG J2016+3657 and 3EG J2027+3429. Gamma-ray emission associated with the EGRET sources has been detected by the Fermi Gamma-ray Space Telescope, and the two sources, 1FGL J2015.7+3708 and 1FGL J2027.6+3335, have been classified as unidentified in the 1 year catalog. This analysis of the Fermi Large Area Telescope (LAT) data collected during 31 months reveals that the 1FGL sources are spatially compatible with the blazars and are significantly variable, supporting the hypothesis of extragalactic origin for the gamma-ray emission. The gamma-ray light curves are compared with 15 GHz radio light curves from the 40 m telescope at the Owens Valley Radio Observatory. Simultaneous variability is seen in both bands for the two blazar candidates. The study is completed with the X-ray analysis of 1FGL J2015.7+3708 using Swift observations that were triggered in 2010 August by a Fermi-detected flare. The resulting spectral energy distribution shows a two-component structure typical of blazars. We also identify a second source in the field of view of 1FGL J2027.6+3335 with similar characteristics to the known LAT pulsars. This study gives solid evidence favoring blazar counterparts for these two unidentified EGRET and Fermi sources, supporting the hypothesis that a number of unidentified gamma-ray sources at low-galactic latitudes are indeed of extragalactic origin.

  2. Particle and surfactant interactions effected polar and dispersive components of interfacial energy in nanocolloids

    Science.gov (United States)

    Harikrishnan, A. R.; Das, Sarit K.; Agnihotri, Prabhat K.; Dhar, Purbarun

    2017-08-01

    We segregate and report experimentally for the first time the polar and dispersive interfacial energy components of complex nanocolloidal dispersions. In the present study, we introduce a novel inverse protocol for the classical Owens Wendt method to determine the constitutive polar and dispersive elements of surface tension in such multicomponent fluidic systems. The effect of nanoparticles alone and aqueous surfactants alone are studied independently to understand the role of the concentration of the dispersed phase in modulating the constitutive elements of surface energy in fluids. Surfactants are capable of altering the polar component, and the combined particle and surfactant nanodispersions are shown to be effective in modulating the polar and dispersive components of surface tension depending on the relative particle and surfactant concentrations as well as the morphological and electrostatic nature of the dispersed phases. We observe that the combined surfactant and particle colloid exhibits a similar behavior to that of the particle only case; however, the amount of modulation of the polar and dispersive constituents is found to be different from the particle alone case which brings to the forefront the mechanisms through which surfactants modulate interfacial energies in complex fluids. Accordingly, we are able to show that the observations can be merged into a form of quasi-universal trend in the trends of polar and dispersive components in spite of the non-universal character in the wetting behavior of the fluids. We analyze the different factors affecting the polar and dispersive interactions in such complex colloids, and the physics behind such complex interactions has been explained by appealing to the classical dispersion theories by London, Debye, and Keesom as well as by Derjaguin-Landau-Verwey-Overbeek theory. The findings shed light on the nature of wetting behavior of such complex fluids and help in predicting the wettability and the degree of

  3. Human adipose stem cell and ASC-derived cardiac progenitor cellular therapy improves outcomes in a murine model of myocardial infarction

    Directory of Open Access Journals (Sweden)

    Davy PMC

    2015-10-01

    Full Text Available Philip MC Davy,1 Kevin D Lye,2,3 Juanita Mathews,1 Jesse B Owens,1 Alice Y Chow,1 Livingston Wong,2 Stefan Moisyadi,1 Richard C Allsopp1 1Institute for Biogenesis Research, 2John A. Burns School of Medicine, University of Hawaii at Mānoa, 3Tissue Genesis, Inc., Honolulu, HI, USA Background: Adipose tissue is an abundant and potent source of adult stem cells for transplant therapy. In this study, we present our findings on the potential application of adipose-derived stem cells (ASCs as well as induced cardiac-like progenitors (iCPs derived from ASCs for the treatment of myocardial infarction. Methods and results: Human bone marrow (BM-derived stem cells, ASCs, and iCPs generated from ASCs using three defined cardiac lineage transcription factors were assessed in an immune-compromised mouse myocardial infarction model. Analysis of iCP prior to transplant confirmed changes in gene and protein expression consistent with a cardiac phenotype. Endpoint analysis was performed 1 month posttransplant. Significantly increased endpoint fractional shortening, as well as reduction in the infarct area at risk, was observed in recipients of iCPs as compared to the other recipient cohorts. Both recipients of iCPs and ASCs presented higher myocardial capillary densities than either recipients of BM-derived stem cells or the control cohort. Furthermore, mice receiving iCPs had a significantly higher cardiac retention of transplanted cells than all other groups. Conclusion: Overall, iCPs generated from ASCs outperform BM-derived stem cells and ASCs in facilitating recovery from induced myocardial infarction in mice. Keywords: adipose stem cells, myocardial infarction, cellular reprogramming, cellular therapy, piggyBac, induced cardiac-like progenitors

  4. Predictive validity of a brief antiretroviral adherence index: Retrospective cohort analysis under conditions of repetitive administration

    Directory of Open Access Journals (Sweden)

    Colwell Bradford

    2008-08-01

    Full Text Available Abstract Background Newer antiretroviral (ARV agents have improved pharmacokinetics, potency, and tolerability and have enabled the design of regimens with improved virologic outcomes. Successful antiretroviral therapy is dependent on patient adherence. In previous research, we validated a subset of items from the ACTG adherence battery as prognostic of virologic suppression at 6 months and correlated with adherence estimates from the Medication Event Monitoring System (MEMS. The objective of the current study was to validate the longitudinal use of the Owen Clinic adherence index in analyses of time to initial virologic suppression and maintenance of suppression. Results 278 patients (naïve n = 168, experienced n = 110 met inclusion criteria. Median [range] time on the first regimen during the study period was 286 (30 – 1221 days. 217 patients (78% achieved an undetectable plasma viral load (pVL at median 63 days. 8.3% (18/217 of patients experienced viral rebound (pVL > 400 after initial suppression. Adherence scores varied from 0 – 25 (mean 1.06, median 0. The lowest detectable adherence score cut point using this instrument was ≥ 5 for both initial suppression and maintenance of suppression. In the final Cox model of time to first undetectable pVL, controlling for prior treatment experience and baseline viral load, the adjusted hazard ratio for time updated adherence score was 0.36score ≥ 5 (95% CI: 0.19–0.69 [reference: score ≥ 5 (0.05–0.66 [reference: Conclusion A brief, longitudinally administered self report adherence instrument predicted both initial virologic suppression and maintenance of suppression in patients using contemporary ARV regimens. The survey can be used for identification of sub-optimal adherence with subsequent appropriate intervention.

  5. The hepatitis C cascade of care among HIV infected patients: a call to address ongoing barriers to care.

    Directory of Open Access Journals (Sweden)

    Edward R Cachay

    Full Text Available The aims were to investigate the hepatitis C (HCV cascade of care among HIV-infected patients and to identify reasons for not referring for and not initiating HCV therapy after completion of HCV treatment staging.Retrospective cohort analysis of HIV-infected patients under care at the University of California, San Diego (UCSD. We identified patients screened for and diagnosed with active HCV infection. Logistic regression analyses were used to identify factors associated with lack of referral for HCV therapy. Electronic medical records were reviewed to ascertain reasons for not initiating HCV therapy.Between 2008 and 2012, 4725 HIV-infected patients received care at the UCSD Owen clinic. Most patients [4534 (96%] were screened for HCV, 748 (16% patients had reactive serum HCV antibodies but only 542 patients had active HCV infection. Lack of engagement in care was the most important predictor of non-referral for HCV therapy [odds ratio (OR: 5.08, 95% confidence interval 3.24-6.97, p<0.00001]. Other significant predictors included unstable housing (OR: 2.26, AIDS (OR: 1.83, having a detectable HIV viral load (OR: 1.98 and being non-white (OR: 1.67. The most common reason (40% for not initiating or deferring HCV therapy was the presence of ongoing barriers to care.Screening for HCV in HIV-infected patients linked to care is high but almost half of patients diagnosed with HCV are not referred for HCV therapy. Despite improvements in HCV therapy the benefits will not be realized unless effective measures for dealing with barriers to care are implemented.

  6. Effects of a computer-based cognitive exercise program on age-related cognitive decline.

    Science.gov (United States)

    Bozoki, Andrea; Radovanovic, Mirjana; Winn, Brian; Heeter, Carrie; Anthony, James C

    2013-01-01

    We developed a 'senior friendly' suite of online 'games for learning' with interactive calibration for increasing difficulty, and evaluated the feasibility of a randomized clinical trial to test the hypothesis that seniors aged 60-80 can improve key aspects of cognitive ability with the aid of such games. Sixty community-dwelling senior volunteers were randomized to either an online game suite designed to train multiple cognitive abilities, or to a control arm with online activities that simulated the look and feel of the games but with low level interactivity and no calibration of difficulty. Study assessment included measures of recruitment, retention and play-time. Cognitive change was measured with a computerized assessment battery administered just before and within two weeks after completion of the six-week intervention. Impediments to feasibility included: limited access to in-home high-speed internet, large variations in the amount of time devoted to game play, and a reluctance to pursue more challenging levels. Overall analysis was negative for assessed performance (transference effects) even though subjects improved on the games themselves. Post hoc analyses suggest that some types of games may have more value than others, but these effects would need to be replicated in a study designed for that purpose. We conclude that a six-week, moderate-intensity computer game-based cognitive intervention can be implemented with high-functioning seniors, but the effect size is relatively small. Our findings are consistent with Owen et al. (2010), but there are open questions about whether more structured, longer duration or more intensive 'games for learning' interventions might yield more substantial cognitive improvement in seniors. Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.

  7. Mindfulness-Based Symptom and Stress Management Apps for Adults With Chronic Lung Disease: Systematic Search in App Stores.

    Science.gov (United States)

    Owens, Otis L; Beer, Jenay M; Reyes, Ligia I; Gallerani, David G; Myhren-Bennett, Amanda R; McDonnell, Karen K

    2018-05-15

    Up to 70% of lung cancer survivors are affected by chronic obstructive pulmonary disease (COPD), a common, debilitating, comorbid disease. Lung cancer and COPD are both characterized by symptoms such as breathlessness, fatigue, and psychological distress. These distressing chronic symptoms are exacerbated by stress and detract from an individual's quality of life. The aim of this study was to identify and evaluate evidence-based, commercially available apps for promoting mindfulness-based strategies among adults with a COPD or lung cancer history (ie, chronic lung disease). For this review, an interdisciplinary research team used 19 keyword combinations in the search engines of Google and iOS app stores in May 2017. Evaluations were conducted on the apps' (1) content, (2) usability heuristics, (3) grade-level readability, and (4) cultural sensitivity. The search resulted in 768 apps (508 in iOS and 260 in Google stores). A total of 9 apps met the inclusion criteria and received further evaluation. Only 1 app had below an eighth-grade reading level; the ninth one did not have enough text to calculate a readability score. None of the 9 apps met the cultural sensitivity evaluation criteria. This systematic review identified critical design flaws that may affect the ease of using the apps in this study. Few mobile apps promote mindfulness-based strategies among adults with chronic lung disease (ie, COPD or lung cancer or both), but those that exist, overall, do not meet the latest scientific evidence. Recommendations include more stringent regulation of health-related apps, use of evidence-based frameworks and participatory design processes, following evidence-based usability practices, use of culturally sensitive language and images, and ensuring that content is written in plain language. ©Otis L Owens, Jenay M Beer, Ligia I Reyes, David G Gallerani, Amanda R Myhren-Bennett, Karen K McDonnell. Originally published in JMIR Mhealth and Uhealth (http

  8. Practice Parameters for the Treatment of Narcolepsy and other Hypersomnias of Central Origin An American Academy of Sleep Medicine Report

    Science.gov (United States)

    Morgenthaler, Timothy I.; Kapur, Vishesh K.; Brown, Terry; Swick, Todd J.; Alessi, Cathy; Aurora, R. Nisha; Boehlecke, Brian; Chesson, Andrew L.; Friedman, Leah; Maganti, Rama; Owens, Judith; Pancer, Jeffrey; Zak, Rochelle

    2007-01-01

    These practice parameters pertain to the treatment of hypersomnias of central origin. They serve as both an update of previous practice parameters for the therapy of narcolepsy and as the first practice parameters to address treatment of other hypersomnias of central origin. They are based on evidence analyzed in the accompanying review paper. The specific disorders addressed by these parameters are narcolepsy (with cataplexy, without cataplexy, due to medical condition and unspecified), idiopathic hypersomnia (with long sleep time and without long sleep time), recurrent hypersomnia and hypersomnia due to medical condition. Successful treatment of hypersomnia of central origin requires an accurate diagnosis, individual tailoring of therapy to produce the fullest possible return of normal function, and regular follow-up to monitor response to treatment. Modafinil, sodium oxybate, amphetamine, methamphetamine, dextroamphetamine, methylphenidate, and selegiline are effective treatments for excessive sleepiness associated with narcolepsy, while tricyclic antidepressants and fluoxetine are effective treatments for cataplexy, sleep paralysis, and hypnagogic hallucinations; but the quality of published clinical evidence supporting them varies. Scheduled naps can be beneficial to combat sleepiness in narcolepsy patients. Based on available evidence, modafinil is an effective therapy for sleepiness due to idiopathic hypersomnia, Parkinson's disease, myotonic dystrophy, and multiple sclerosis. Based on evidence and/or long history of use in the therapy of narcolepsy committee consensus was that modafinil, amphetamine, methamphetamine, dextroamphetamine, and methylphenidate are reasonable options for the therapy of hypersomnias of central origin. Citation: Morgenthaler TI; Kapur VK; Brown T; Swick TJ; Alessi C; Aurora RN; Boehlecke B; Chesson AL; Friedman L; Maganti R; Owens J; Pancer J; Zak R; Standards of Practice Committee of the AASM. Practice parameters for the treatment

  9. The adhesion performance of epoxy coating on AA6063 treated in Ti/Zr/V based solution

    International Nuclear Information System (INIS)

    Zhu, Wen; Li, Wenfang; Mu, Songlin; Yang, Yunyu; Zuo, Xi

    2016-01-01

    Highlights: • A non-chrome titanium/zirconium/vanadium-based (Ti/Zr/V) conversion coating is prepared on AA6063 at room temperature. • The Ti/Zr/V conversion coating is produced on AA6063 within 50 s. • The adhesion strength between epoxy coating and AA6063 is improved significantly after the Ti/Zr/V conversion treatment. - Abstract: An environment-friendly titanium/zirconium/vanadium-based (Ti/Zr/V) conversion coating was prepared on aluminum alloy 6063 (AA6063). The epoxy powder coatings were applied on the AA6063 samples with/without Ti/Zr/V conversion coatings via electrostatic spraying. The morphology and composition of the conversion coating were studied by scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS), respectively. The surface free energy components of AA6063 samples were measured by a static contact angle measuring device with Owens method. The adhesion properties of the epoxy coating on AA6063 treated with different conversion times were evaluated using a pull-off tester. The Ti/Zr/V conversion coating was mainly composed of metal oxide (TiO 2 , ZrO 2 , V 2 O 5 , Al 2 O 3 , etc.), metal fluoride (ZrF 4 , AlF 3 , etc.) and metal organic complex. The formation time of this conversion coating was reduced to 50 s. After such surface treatment, the samples' surface roughness was increased and the contact angle with water was decreased. Both the surface free energy and the work of adhesion were increased. The adhesion strength between the epoxy coating and AA6063 was enhanced significantly.

  10. The adhesion performance of epoxy coating on AA6063 treated in Ti/Zr/V based solution

    Energy Technology Data Exchange (ETDEWEB)

    Zhu, Wen; Li, Wenfang, E-mail: mewfli@scut.edu.cn; Mu, Songlin; Yang, Yunyu; Zuo, Xi

    2016-10-30

    Highlights: • A non-chrome titanium/zirconium/vanadium-based (Ti/Zr/V) conversion coating is prepared on AA6063 at room temperature. • The Ti/Zr/V conversion coating is produced on AA6063 within 50 s. • The adhesion strength between epoxy coating and AA6063 is improved significantly after the Ti/Zr/V conversion treatment. - Abstract: An environment-friendly titanium/zirconium/vanadium-based (Ti/Zr/V) conversion coating was prepared on aluminum alloy 6063 (AA6063). The epoxy powder coatings were applied on the AA6063 samples with/without Ti/Zr/V conversion coatings via electrostatic spraying. The morphology and composition of the conversion coating were studied by scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS), respectively. The surface free energy components of AA6063 samples were measured by a static contact angle measuring device with Owens method. The adhesion properties of the epoxy coating on AA6063 treated with different conversion times were evaluated using a pull-off tester. The Ti/Zr/V conversion coating was mainly composed of metal oxide (TiO{sub 2}, ZrO{sub 2}, V{sub 2}O{sub 5}, Al{sub 2}O{sub 3}, etc.), metal fluoride (ZrF{sub 4}, AlF{sub 3}, etc.) and metal organic complex. The formation time of this conversion coating was reduced to 50 s. After such surface treatment, the samples' surface roughness was increased and the contact angle with water was decreased. Both the surface free energy and the work of adhesion were increased. The adhesion strength between the epoxy coating and AA6063 was enhanced significantly.

  11. Surface free energy of non-stick coatings deposited using closed field unbalanced magnetron sputter ion plating

    International Nuclear Information System (INIS)

    Sun, C.-C.; Lee, S.-C.; Dai, S.-B.; Tien, S.-L.; Chang, C.-C.; Fu, Y.-S.

    2007-01-01

    Semiconductor IC packaging molding dies require wear resistance, corrosion resistance and non-sticking (with a low surface free energy). The molding releasing capability and performance are directly associated with the surface free energy between the coating and product material. The serious sticking problem reduces productivity and reliability. Depositing TiN, TiMoS, ZrN, CrC, CrN, NiCr, NiCrN, CrTiAlN and CrNiTiAlN coatings using closed field unbalanced magnetron sputter ion plating, and characterizing their surface free energy are the main object in developing a non-stick coating system for semiconductor IC molding tools. The contact angle of water, diiodomethane and ethylene glycol on the coated surfaces were measured at temperature in 20 deg. C using a Dataphysics OCA-20 contact angle analyzer. The surface free energy of the coatings and their components (dispersion and polar) were calculated using the Owens-Wendt geometric mean approach. The surface roughness was investigated by atomic force microscopy (AFM). The adhesion force of these coatings was measured using direct tensile pull-off test apparatus. The experimental results showed that NiCrN, CrN and NiCrTiAlN coatings outperformed TiN, ZrN, NiCr, CiTiAlN, CrC and TiMoS coatings in terms of non-sticking, and thus have the potential as working layers for injection molding industrial equipment, especially in semiconductor IC packaging molding applications

  12. Surface free energy of CrN x films deposited using closed field unbalanced magnetron sputtering

    International Nuclear Information System (INIS)

    Sun, C.-C.; Lee, S.-C.; Dai, S.-B.; Fu, Y.-S.; Wang, Y.-C.; Lee, Y.-H.

    2006-01-01

    CrN x thin films have attracted much attention for semiconductor IC packaging molding dies and forming tools due to their excellent hardness, thermal stability and non-sticking properties (low surface free energy). However, few data has been published on the surface free energy (SFE) of CrN x films at temperatures in the range 20-170 deg. C. In this study CrN x thin films with CrN, Cr(N), Cr 2 N (and mixture of these phases) were prepared using closed field unbalanced magnetron sputtering at a wide range of Cr +2 emission intensity. The contact angles of water, di-iodomethane and ethylene glycol on the coated surfaces were measured at temperatures in the range 20-170 deg. C using a Dataphysics OCA-20 contact angle analyzer. The surface free energy of the CrN x films and their components (e.g., dispersion, polar) were calculated using the Owens-Wendt geometric mean approach. The influences of CrN x film surface roughness and microstructure on the surface free energy were investigated by atomic force microscopy (AFM) and X-ray diffraction (XRD), respectively. The experimental results showed that the lowest total SFE was obtained corresponding to CrN at temperature in 20 deg. C. This is lower than that of Cr(N), Cr 2 N (and mixture of these phases). The total SFE, dispersive SFE and polar SFE of CrN x films decreased with increasing surface temperature. The film roughness has an obvious effect on the SFE and there is tendency for the SFE to increase with increasing film surface roughness

  13. Towards the resolution of a long-standing evolutionary question: muscle identity and attachments are mainly related to topological position and not to primordium or homeotic identity of digits.

    Science.gov (United States)

    Diogo, Rui; Walsh, Sean; Smith, Christopher; Ziermann, Janine M; Abdala, Virginia

    2015-06-01

    Signaling for limb bone development usually precedes that for muscle development, such that cartilage is generally present before muscle formation. It remains obscure, however, if: (i) tetrapods share a general, predictable spatial correlation between bones and muscles; and, if that is the case, if (ii) such a correlation would reflect an obligatory association between the signaling involved in skeletal and muscle morphogenesis. We address these issues here by using the results of a multidisciplinary analysis of the appendicular muscles of all major tetrapod groups integrating dissections, muscle antibody stainings, regenerative and ontogenetic analyses of fluorescently-labeled (GFP) animals, and studies of non-pentadactyl human limbs related to birth defects. Our synthesis suggests that there is a consistent, surprising anatomical pattern in both normal and abnormal phenotypes, in which the identity and attachments of distal limb muscles are mainly related to the topological position, and not to the developmental primordium (anlage) or even the homeotic identity, of the digits to which they are attached. This synthesis is therefore a starting point towards the resolution of a centuries-old question raised by authors such as Owen about the specific associations between limb bones and muscles. This question has crucial implications for evolutionary and developmental biology, and for human medicine because non-pentadactyly is the most common birth defect in human limbs. In particular, this synthesis paves the way for future developmental experimental and mechanistic studies, which are needed to clarify the processes that may be involved in the elaboration of the anatomical patterns described here, and to specifically test the hypothesis that distal limb muscle identity/attachment is mainly related to digit topology. © 2015 Anatomical Society.

  14. When thoughts become action: an fMRI paradigm to study volitional brain activity in non-communicative brain injured patients.

    Science.gov (United States)

    Boly, M; Coleman, M R; Davis, M H; Hampshire, A; Bor, D; Moonen, G; Maquet, P A; Pickard, J D; Laureys, S; Owen, A M

    2007-07-01

    The assessment of voluntary behavior in non-communicative brain injured patients is often challenging due to the existence of profound motor impairment. In the absence of a full understanding of the neural correlates of consciousness, even a normal activation in response to passive sensory stimulation cannot be considered as proof of the presence of awareness in these patients. In contrast, predicted activation in response to the instruction to perform a mental imagery task would provide evidence of voluntary task-dependent brain activity, and hence of consciousness, in non-communicative patients. However, no data yet exist to indicate which imagery instructions would yield reliable single subject activation. The aim of the present study was to establish such a paradigm in healthy volunteers. Two exploratory experiments evaluated the reproducibility of individual brain activation elicited by four distinct mental imagery tasks. The two most robust mental imagery tasks were found to be spatial navigation and motor imagery. In a third experiment, where these two tasks were directly compared, differentiation of each task from one another and from rest periods was assessed blindly using a priori criteria and was correct for every volunteer. The spatial navigation and motor imagery tasks described here permit the identification of volitional brain activation at the single subject level, without a motor response. Volunteer as well as patient data [Owen, A.M., Coleman, M.R., Boly, M., Davis, M.H., Laureys, S., Pickard J.D., 2006. Detecting awareness in the vegetative state. Science 313, 1402] strongly suggest that this paradigm may provide a method for assessing the presence of volitional brain activity, and thus of consciousness, in non-communicative brain-injured patients.

  15. Application of Sodium Silicate Enhances Cucumber Resistance to Fusarium Wilt and Alters Soil Microbial Communities

    Directory of Open Access Journals (Sweden)

    Xingang Zhou

    2018-05-01

    Full Text Available Exogenous silicates can enhance plant resistance to pathogens and change soil microbial communities. However, the relationship between changes in soil microbial communities and enhanced plant resistance remains unclear. Here, effects of exogenous sodium silicate on cucumber (Cucumis sativus L. seedling resistance to Fusarium wilt caused by the soil-borne pathogen Fusarium oxysporum f.sp. cucumerinum Owen (FOC were investigated by drenching soil with 2 mM sodium silicate. Soil bacterial and fungal community abundances and compositions were estimated by real-time PCR and high-throughput amplicon sequencing; then, feedback effects of changes in soil biota on cucumber seedling resistance to FOC were assessed. Moreover, effects of sodium silicate on the growth of FOC and Streptomyces DHV3-2, an antagonistic bacterium to FOC, were investigated both in vitro and in the soil environment. Results showed that exogenous sodium silicate enhanced cucumber seedling growth and resistance to FOC. In bare soil, sodium silicate increased bacterial and fungal community abundances and diversities. In cucumber-cultivated soil, sodium silicate increased bacterial community abundances, but decreased fungal community abundances and diversities. Sodium silicate also changed soil bacterial and fungal communality compositions, and especially, decreased the relative abundances of microbial taxa containing plant pathogens but increased these with plant-beneficial potentials. Moreover, sodium silicate increased the abundance of Streptomyces DHV3-2 in soil. Soil biota from cucumber-cultivated soil treated with sodium silicate decreased cucumber seedling Fusarium wilt disease index, and enhanced cucumber seedling growth and defense-related enzyme activities in roots. Sodium silicate at pH 9.85 inhibited FOC abundance in vitro, but did not affect FOC abundance in soil. Overall, our results suggested that, in cucumber-cultivated soil, sodium silicate increased cucumber seedling

  16. Isolation and characterization of a mannan from mesosomal membrane vesicles of Micrococcus lysodeikticus.

    Science.gov (United States)

    Owen, P; Salton, M R

    1975-10-06

    The carbohydrate content of mesosomal membranes of Micrococcus lysodeikticus has been shown to be consistently higher (about four times) than that of corresponding plasma membrane preparations. Analysis of washed membrane fractions by gas-liquid chromatography indicated that mannose was the major neutral sugar of both types of membrane (accounting for 95 and 89%, respectively, of the mesosomal and plasma membrane carbohydrate). Small amounts of inositol, glucose and ribose were also detected. We have shown by polyacrylamide gel electrophoresis in sodium dodecylsulphate and by precipitation and agar gel diffusion experiments with concanavalin A that a mannan is the major carbohydrate component of both types of membrane. This polymer can be selectively released from mesosomal membranes by a simple procedure involving low ionic strength-shock and heating to 80 degrees C for 1 min, and purified by ultrafiltration and ethanol precipitation. The mannan contains mannose as the only neutral carbohydrate, is not phosphorylated and does not contain significant amounts of amino sugars or uronic acids. Agar gel electrophoresis experiments, however, indicate an anionic polymer whose acidic properties are eliminated upon mild base hydrolysis. Analysis of native mannan by infrared spectroscopy reveals absorption bands attributable to ester carbonyl groups and to carboxylate ions, consistent with the presence of succinyl residues in the polymer (Owen, P. and Salton, M.R.J. (1975) Biochem, Biophys. Res. Commun. 63, 875--800). A sedimentation coefficient of 1.39 S was obtained by analytical ultracentrifugation in 1.0 M NaCl and a value of one reducing equivalent per 50 mannose residues by reduction with NaB3H4. The polysaccharide was only slightly degraded (2%) by jack bean alpha-mannosidase and could precipitate 15 times its own weight of concanavalin A. The acidic polymers was also detected in the cell "periplasm" and was secreted from cells grown in defined media during the

  17. Biomimetic three-dimensional nanocrystalline hydroxyapatite and magnetically synthesized single-walled carbon nanotube chitosan nanocomposite for bone regeneration

    Directory of Open Access Journals (Sweden)

    Im O

    2012-04-01

    Full Text Available Owen Im1, Jian Li2, Mian Wang2, Lijie Grace Zhang2,3, Michael Keidar2,31Department of Biomedical Engineering, Duke University, Durham, NC; 2Department of Mechanical and Aerospace Engineering, 3Institute for Biomedical Engineering and Institute for Nanotechnology, The George Washington University, Washington, DC, USABackground: Many shortcomings exist in the traditional methods of treating bone defects, such as donor tissue shortages for autografts and disease transmission for allografts. The objective of this study was to design a novel three-dimensional nanostructured bone substitute based on magnetically synthesized single-walled carbon nanotubes (SWCNT, biomimetic hydrothermally treated nanocrystalline hydroxyapatite, and a biocompatible hydrogel (chitosan. Both nanocrystalline hydroxyapatite and SWCNT have a biomimetic nanostructure, excellent osteoconductivity, and high potential to improve the load-bearing capacity of hydrogels.Methods: Specifically, three-dimensional porous chitosan scaffolds with different concentrations of nanocrystalline hydroxyapatite and SWCNT were created to support the growth of human osteoblasts (bone-forming cells using a lyophilization procedure. Two types of SWCNT were synthesized in an arc discharge with a magnetic field (B-SWCNT and without a magnetic field (N-SWCNT for improving bone regeneration.Results: Nanocomposites containing magnetically synthesized B-SWCNT had superior cytocompatibility properties when compared with nonmagnetically synthesized N-SWCNT. B-SWCNT have much smaller diameters and are twice as long as their nonmagnetically prepared counterparts, indicating that the dimensions of carbon nanotubes can have a substantial effect on osteoblast attachment.Conclusion: This study demonstrated that a chitosan nanocomposite with both B-SWCNT and 20% nanocrystalline hydroxyapatite could achieve a higher osteoblast density when compared with the other experimental groups, thus making this nanocomposite

  18. Implementation of the Westinghouse WRB-2 CHF correlation in VIPRE

    International Nuclear Information System (INIS)

    Klasmier, L.K.; Haksoo Kim

    1992-01-01

    As part of the reload transient and thermal-hydraulic methods development effort within Commonwealth Edison Company (CECo), the WRB-2 critical heat flux (CHF) correlation has been implemented into the VIPRE-01 thermal-hydraulic analysis code to support Westinghouse 17X17 Vantage 5 fuel. CECo is in the process of switching from Westinghouse optimized fuel assembly (OFA) fuel to Vantage 5 fuel at CECo's six pressurized water reactors. CECo performs the neutronic portion of the reload analysis using Westinghouse's ANC/PHOENIX. The transient and thermal-hydraulic analysis will be performed using the RETRAN and VIPRE codes once the Nuclear Regulatory Commission has completed their review of CECo methodology. Previously, CECo had implemented and received NRC approval to use the Westinghouse WRB-1 CHF correlation in the VIPRE-01 code to support 15X15 and 17X17 OFA fuel designs. Since the WRB-1 CHF correlation is not applicable for 17X17 Vantage 5 fuel, it was necessary to implement the WRB-2 CHF correlation in the VIPRE code. The WRB-2 correlation was developed by Westinghouse using a database applicable to 17X17 OFA and Vantage 5 fuel and the THINC thermal-hydraulic analysis code. At CECo, the WRB-2 correlation had been implemented into VIPRE-01/MOD-02. The results produced at CECo have been statistically compared to those produced by Westinghouse. Owen's method was used to determine the VIPRE/WRB-02 thermal limit. The thermal limit for 17X17 OFA and Vantage 5 fuel use in VIPRE/WRB-2 is in excellent agreement with the value calculated by Westinghouse using THINC/WRB-2

  19. A brief history of 20th century dam construction and a look into the future

    Science.gov (United States)

    van de Giesen, Nick

    2010-05-01

    In this presentation, an overview is given of global dam building activities in the 20th century. Political, economical and hydrological factors shaped the building of large dams. The development of the relations between these three factors and dam building over time is examined. One can argue whether or not history is simply "one damn thing after another" but the second half of the 20th century suggests that history is at least reflected by the construction of one dam after another. The financial crisis of the 1930's started the first construction wave of large hydropower dams in the United States. This wave continued into the Second World War. During the Cold War, the weapon race between the USA and USSR was accompanied by a parallel neck-and-neck race in dam construction. By the 1970's, dam construction in the USA tapered off, while that in the USSR continued until its political disintegration. In China, we see two spurts in dam development, the first one coinciding with the disastrous Great Leap Forward and the second with the liberalization of the Chinese economy after the fall of the Berlin Wall. Economic and political events thus shaped to an important extent decisions surrounding the construction of large dams. Clearly, there are some hydrological prerequisites for the construction of dams. The six largest dam building nations are USSR, Canada, USA, China, Brazil, and India, all large countries with ample water resources and mountain ranges. Australia has relatively little reservoir storage for the simple fact that most of this country is flat and dry. A few countries have relatively large amounts of reservoir storage. Especially Uganda (Owens Falls), Ghana (Akosombo), and Zimbabwe (Kariba) are examples of small countries where gorges in major rivers were "natural" places for large dams and reservoirs to be built early on. It seems that, deserts aside, the average potential storage capacity lies for most continents around 10 cm or about 50% of the total

  20. The imperative of culture: a quantitative analysis of the impact of culture on workforce engagement, patient experience, physician engagement, value-based purchasing, and turnover

    Directory of Open Access Journals (Sweden)

    Owens K

    2017-04-01

    Full Text Available Katie Owens,1 Jim Eggers,2 Stephanie Keller,1 Audrey McDonald1 1HealthStream Engagement Institute, Pensacola, FL, 2Analytics, HealthStream, Laurel, MD, USA Abstract: Current uncertainty for the future of the health care landscape is placing an increasing amount of pressure on leadership teams to be prepared to steer their organization forward in a number of potential directions. It is commonly recognized among health care leaders that culture will either enable or disable organizational success. However, very few studies empirically link culture to health care-specific performance outcomes. Nearly every health care organization in the US specifies its cultural aspirations through mission and vision statements and values. Ambitions of patient-centeredness, care for the community, workplace of choice, and world-class quality are frequently cited; yet, little definitive research exists to quantify the importance of building high-performing cultures. Our study examined the impact of cultural attributes defined by a culture index (Cronbach’s alpha = 0.88 on corresponding performance with key health care measures. We mapped results of the culture index across data sets, compared results, and evaluated variations in performance among key indicators for leaders. Organizations that perform in the top quartile for our culture index statistically significantly outperformed those in the bottom quartile on all but one key performance indicator tested. The culture top quartile organizations outperformed every domain for employee engagement, physician engagement, patient experience, and overall value-based purchasing performance with statistical significance. Culture index top quartile performers also had a 3.4% lower turnover rate than the bottom quartile performers. Finally, culture index top quartile performers earned an additional 1% on value-based purchasing. Our findings demonstrate a meaningful connection between performance in the culture index and

  1. Moa fossils and chronology of a Pleistocene terrace sequence, Tauweru, Wairarapa, New Zealand

    International Nuclear Information System (INIS)

    Collen, J.D.; Grapes, R.H.; Eager, S.H.

    2000-01-01

    The fortuitous preservation of bones of the medium-sized moa Euryapteryx geranoides (Owen) in Pleistocene colluvial sediments near Tauweru, Wairarapa, has allowed radiocarbon dating of a terrace sequence along the lower Tauweru River. The bones were in a shelly, conglomeratic sandstone on an erosion surface cut into mid-Pliocene (Waipipian) siltstone, and were overlain by loess and situated immediately adjacent to onlapping fluvial gravels. Most of the bones are from a single skeleton buried articulated and apparently nearly complete, and there is also a single left tibiotarsus from a slightly larger bird. Bone from the right femur gave a radiocarbon age of 14 262 +/- 87 yr BP by accelerator mass spectrometry. The material was slightly chalky and had a low collagen yield with a relatively large amount of humic material; contamination which would lower the measured age is thus possible. However, an amino acid profile characteristic of collagen makes it unlikely that high contaminant levels are present. The radiocarbon age for the bone is likely to be 14-18 ka (16-22 000 cal. yr) or possibly older, with the lower limit being set by the radiocarbon age and the upper limit inferred from the amount of humic contamination. This is thus the oldest moa skeleton reported from Wairarapa. Loess overlying the bones contains disseminated shards of clear rhyolitic glass with a composition identical to that of the 22.6 ka (24 500 cal. yr) Kawakawa Tephra, and gave an age by optical dating of 26 +/- 2 ka. A thicker tephra deposit within loess on a higher, deeply dissected surface may also be partly reworked; optical dating of a sample of loess from 2 m beneath it gave an age of 22 +/- 2 ka. Thermoluminescence dating of two samples of the conglomeratic deposits surrounding the bones gave ages of 52 +/- 13.2 and 102 +/- 18 ka, respectively, indicating redeposition of these sediments without resetting of the thermoluminescence signal. One of these samples was also dated by optical

  2. High reliability low jitter 80 kV pulse generator

    International Nuclear Information System (INIS)

    Savage, Mark Edward; Stoltzfus, Brian Scott

    2009-01-01

    Switching can be considered to be the essence of pulsed power. Time accurate switch/trigger systems with low inductance are useful in many applications. This article describes a unique switch geometry coupled with a low-inductance capacitive energy store. The system provides a fast-rising high voltage pulse into a low impedance load. It can be challenging to generate high voltage (more than 50 kilovolts) into impedances less than 10 (Omega), from a low voltage control signal with a fast rise time and high temporal accuracy. The required power amplification is large, and is usually accomplished with multiple stages. The multiple stages can adversely affect the temporal accuracy and the reliability of the system. In the present application, a highly reliable and low jitter trigger generator was required for the Z pulsed-power facility [M. E. Savage, L. F. Bennett, D. E. Bliss, W. T. Clark, R. S. Coats,J. M. Elizondo, K. R. LeChien, H. C. Harjes, J. M. Lehr, J. E. Maenchen, D. H. McDaniel, M. F. Pasik, T. D. Pointon, A. C. Owen, D. B. Seidel, D. L. Smith, B. S. Stoltzfus, K.W. Struve, W.A. Stygar, L.K. Warne, and J. R. Woodworth, 2007 IEEE Pulsed Power Conference, Albuquerque, NM (IEEE, Piscataway, NJ, 2007), p. 979]. The large investment in each Z experiment demands low prefire probability and low jitter simultaneously. The system described here is based on a 100 kV DC-charged high-pressure spark gap, triggered with an ultraviolet laser. The system uses a single optical path for simultaneously triggering two parallel switches, allowing lower inductance and electrode erosion with a simple optical system. Performance of the system includes 6 ns output rise time into 5.6 (Omega), 550 ps one-sigma jitter measured from the 5 V trigger to the high voltage output, and misfire probability less than 10 -4 . The design of the system and some key measurements will be shown in the paper. We will discuss the design goals related to high reliability and low jitter. While

  3. A massive hydrogen-rich Martian greenhouse recorded in D/H

    Science.gov (United States)

    Pahlevan, K.; Schaefer, L. K.; Desch, S. J.; Elkins-Tanton, L. T.

    2017-12-01

    The deuterium-to-hydrogen (D/H) ratio in Martian atmospheric water ( 6x standard mean ocean water, SMOW) [1,2] is higher than that of known sources [3,4] alluding to a planetary enrichment process. A recent measurement by the Curiosity rover of Hesperian clays yields a D/H value 3x higher than SMOW [5], demonstrating that most enrichment occurred early in planetary history, buttressing the conclusions of Martian meteorite studies [6,7]. Extant models of the isotopic evolution of the Martian hydrosphere have not incorporated primordial H2, despite its likely abundance on early Mars. Here, we report the first 1D climate calculations with an atmospheric composition determined via degassing from a reducing magma ocean to study Martian climate during an early water ocean stage. A reducing Martian magma ocean is expected based on experimental petrology [8], the degassing of which gives rise to an H2-rich steam atmosphere [9] with strong attendant greenhouse warming [10,11] even after the removal of steam via condensation. At the pressures and temperatures prevailing in such a degassed greenhouse, we find that isotopic exchange in the fluid envelope is rapid, strongly concentrating deuterium in water molecules over molecular hydrogen [12]. The subsequent loss of the isotopically light H2-rich atmosphere results in a 2x D/H enrichment in the oceans via isotopic equilibration alone. These calculations suggest that most of the D/H enrichment observed in the first billion years of Martian history is produced by the evolution of a massive ( 100 bar) H2-rich greenhouse in the aftermath of magma ocean crystallization. The proposed link between early planetary process and modern isotopic observable opens a new window into the earliest history of Mars. [1] Owen, T. et al. Science 240, 1767-1770 (1988). [2] Webster, C. R. et al. Science 341, 260-263 (2013). [3] Lunine, J. I. et al. Icarus 165, 1-8, (2003). [4] Marty, B. et al. EPSL 441, 91-102, (2016). [5] Mahaffy, P. et al

  4. Variation of the active sulfur and its leave content in the adult African palm in the piedemonte soils of the Colombian eastern plains, during two climatic periods

    International Nuclear Information System (INIS)

    Davila, Gustavo A; Guerrero R; Rojas L A

    2000-01-01

    Investigations carried out until the present in Colombia on critical levels of sulfur in soils and its concentration in plant tissues of the oil palm is very scarce. Therefore, critical levels in soils obtained for other crops in Colombia and investigations about S content in oil palm accomplished in other countries, had been taken into account in order to have an idea of the nutritional S status in the Colombian oil palm crops. The present work had as an objective to measure the concentration of S in the tissue of the 17th leaf of adult oil palms (7-9 years) and the content of the active element in soil (by using the 0.008 m. monocalcic phosphate method) in two climatic periods (wet-dry) on soils (oxisols and inceptisols) of 12 plantations of the western Colombian plains. The evaluated soils were S deficient (< 5 ppm), with the exception of three plantations (Palmeta, Palmallano and Palmar of Manavire) at the first sampling depth (0-30 cm) during the two climatic periods evaluated. The greatest accumulation of S was found in the second sampling depth (30-60 cm). The leave concentration of S in most of the plantations was lower than the critical levels (0,20-0,23%) reported by other investigators (Malavolta, 1994; Hagstron (1988) y Ollagnier et al (1970), cited by Owen (1991), and Von Euxkull, 1996), during the two climatic periods of sampling, with no correlation to the values found in soils. the previous permits to deduce that: a) the concentrations of S in leave tissues for adult oil palm were less than the reported values in other countries. b) The critical levels for S in the soils tend to be in general, lower than those established in Colombia for other crops. C) The fertilization levels with S, tend be insufficient to satisfy the demand of the element in the evaluated plantations d) It is considered necessary to evaluate the efficiency of other methodologies to evaluate the S content in the plant as well as in the soil

  5. Iapetus: First data from the Cassini Visual Infrared Mapping Spectrometer

    Science.gov (United States)

    Buratti, B. J.; Cruikshank, D. P.; Clark, R.; Brown, R. H.; Bauer, J. M.; Simonelli, D. P.; Jaumann, R.; Hibbitts, K.; McCord, T. B.; Soderlund, K.; Baines, K. H.; Bellucci, G.; Bibring, J. P.; Capaccioni, F.; Cerroni, P.; Coradini, A.; Drossart, P.; Formisano, V.; Langevin, Y.; Matson, D. L.; Mennella, V.; Nelson, R.; Nicholson, P. D.; Sicardy, B.; Sotin, C.

    2004-11-01

    Iapetus is perhaps the most enigmatic body in the solar system: One hemisphere is as dark as lampblack, and the other is almost as bright as snow. The models that have been offered to explain this dichotomy range from endogenously placed material (Smith et al., 1982, Science 215, 504), to material exogenously placed from Phoebe (Soter, 1974, IAU Colloq. 28), or other bodies (Owen et al., 2001, Icarus 149, 160; Buratti et al., 2002, Icarus 155, 375; Buratti et al., 2003, B.A.A.S, 915). No mechanism for the darkening process or purported source for the exogenic particles is entirely satisfactory. One key question is whether the process that led to the formation of the low-albedo hemisphere of Iapetus is unique, or whether the satellite has been subjected to a satellite alteration process in a more extreme form. Both Callisto and the outer satellites of Uranus show evidence for exogenic accretion of particles onto their leading sides. A targeted flyby of Iapetus by Cassini, during which the spacecraft will approach the satellite to within 1000 km, is scheduled to occur in September 2007. An untargeted approach of 65,000 km to the satellite will occur on New Year's day 2005, and observations are planned for the period around closest approach. However, a "sneak peak" of the satellite was afforded by Cassini on July 19, 2004, during which the spacecraft approached to less than three million miles (the Voyager closest approach was 909,070 km). The first disk resolved spectra of Iapetus in the 0.4 to 5 micron region were obtained by the Cassini Visual Infrared Mapping Spectrometer (VIMS). We report the tentative identification of carbon dioxide on the low-albedo portion of the surface. A comparison of the spectrum of Iapetus to that obtained by VIMS during its flyby of Phoebe on June 11, 2004 will be made. Mixing models incorporating water ice, minerals, and organics can replicate the spectrum of the dark hemisphere. Work performed at the Jet Propulsion Laboratory

  6. A 31 GHz Survey of Low-Frequency Selected Radio Sources

    Science.gov (United States)

    Mason, B. S.; Weintraub, L.; Sievers, J.; Bond, J. R.; Myers, S. T.; Pearson, T. J.; Readhead, A. C. S.; Shepherd, M. C.

    2009-10-01

    The 100 m Robert C. Byrd Green Bank Telescope and the 40 m Owens Valley Radio Observatory telescope have been used to conduct a 31 GHz survey of 3165 known extragalactic radio sources over 143 deg2 of the sky. Target sources were selected from the NRAO VLA Sky Survey in fields observed by the Cosmic Background Imager (CBI); most are extragalactic active galactic nuclei (AGNs) with 1.4 GHz flux densities of 3-10 mJy. The resulting 31 GHz catalogs are presented in full online. Using a maximum-likelihood analysis to obtain an unbiased estimate of the distribution of the 1.4-31 GHz spectral indices of these sources, we find a mean 31-1.4 GHz flux ratio of 0.110 ± 0.003 corresponding to a spectral index of α = -0.71 ± 0.01 (S ν vprop να) 9.0% ± 0.8% of sources have α > - 0.5 and 1.2% ± 0.2% have α > 0. By combining this spectral-index distribution with 1.4 GHz source counts, we predict 31 GHz source counts in the range 1 mJy S 31) = (16.7 ± 1.7) deg-2(S 31/1 mJy)-0.80±0.07. We also assess the contribution of mJy-level (S 1.4 GHz < 3.4 mJy) radio sources to the 31 GHz cosmic microwave background power spectrum, finding a mean power of ell(ell + 1)C src ell/(2π) = 44 ± 14 μK2 and a 95% upper limit of 80 μK2 at ell = 2500. Including an estimated contribution of 12 μK2 from the population of sources responsible for the turn-up in counts below S 1.4 GHz = 1 mJy, this amounts to 21% ± 7% of what is needed to explain the CBI high-ell excess signal, 275 ± 63 μK2. These results are consistent with other measurements of the 31 GHz point-source foreground.

  7. Science.gov (United States)

    Porto, Paolo

    2016-05-01

    IAEA-TECDOC-1741 'Guidelines for Using Fallout Radionuclides to Assess Erosion and Effectiveness of Soil Conservation Strategies' represents a product of a long-term initiative by the International Atomic Energy Agency (IAEA) to promote the use of fallout radionuclides (FRNs) for investigating soil erosion and soil and sediment redistribution processes in the environment. Numerous papers dealing with the use of FRNs, and more particularly caesium-137 (137Cs), excess lead-210 (210Pbex), and beryllium-7 (7Be), for this purpose have been published in recent years and FRNs are now widely used in soil erosion investigations around the world (see among the others, Loughran et al., 1993; Mabit et al., 2008; Navas et al., 2005; Owens et al., 1996; Porto et al., 2001, 2013; Wallbrink and Murray, 1996; Walling, 2012; Zhang et al., 1990). There have, however, been few manuals or related publications produced to provide guidelines for the application of the approach. This deficiency has arguably hindered standardisation of the procedures used by different researchers, with the result that there is often considerable variation between studies in the details of the approach used and the nature of the data generated. The Handbook for the Assessment of Soil Erosion and Sedimentation Using Environmental Radionuclides edited by Felipe Zapata, an IAEA officer, and published in 2002 (Zapata, 2002) was an important milestone in progressing towards standardisation. However, it is now becoming outdated, not least because it focuses on 137Cs rather than covering all three FRNs. There have also been many developments in the field since the Handbook was produced. This recently published volume must therefore be welcomed as updating that Handbook and, more particularly, covering the application of all three FRNs. It draws on the experience of around 30 researchers from around the world, who have been involved with the recent IAEA Coordinated Research Projects (CRPs) linked to the use of FRNs

  8. Cyberinfrastructure for Open Science at the Montreal Neurological Institute.

    Science.gov (United States)

    Das, Samir; Glatard, Tristan; Rogers, Christine; Saigle, John; Paiva, Santiago; MacIntyre, Leigh; Safi-Harab, Mouna; Rousseau, Marc-Etienne; Stirling, Jordan; Khalili-Mahani, Najmeh; MacFarlane, David; Kostopoulos, Penelope; Rioux, Pierre; Madjar, Cecile; Lecours-Boucher, Xavier; Vanamala, Sandeep; Adalat, Reza; Mohaddes, Zia; Fonov, Vladimir S; Milot, Sylvain; Leppert, Ilana; Degroot, Clotilde; Durcan, Thomas M; Campbell, Tara; Moreau, Jeremy; Dagher, Alain; Collins, D Louis; Karamchandani, Jason; Bar-Or, Amit; Fon, Edward A; Hoge, Rick; Baillet, Sylvain; Rouleau, Guy; Evans, Alan C

    2016-01-01

    Data sharing is becoming more of a requirement as technologies mature and as global research and communications diversify. As a result, researchers are looking for practical solutions, not only to enhance scientific collaborations, but also to acquire larger amounts of data, and to access specialized datasets. In many cases, the realities of data acquisition present a significant burden, therefore gaining access to public datasets allows for more robust analyses and broadly enriched data exploration. To answer this demand, the Montreal Neurological Institute has announced its commitment to Open Science, harnessing the power of making both clinical and research data available to the world (Owens, 2016a,b). As such, the LORIS and CBRAIN (Das et al., 2016) platforms have been tasked with the technical challenges specific to the institutional-level implementation of open data sharing, including: Comprehensive linking of multimodal data (phenotypic, clinical, neuroimaging, biobanking, and genomics, etc.)Secure database encryption, specifically designed for institutional and multi-project data sharing, ensuring subject confidentiality (using multi-tiered identifiers).Querying capabilities with multiple levels of single study and institutional permissions, allowing public data sharing for all consented and de-identified subject data.Configurable pipelines and flags to facilitate acquisition and analysis, as well as access to High Performance Computing clusters for rapid data processing and sharing of software tools.Robust Workflows and Quality Control mechanisms ensuring transparency and consistency in best practices.Long term storage (and web access) of data, reducing loss of institutional data assets.Enhanced web-based visualization of imaging, genomic, and phenotypic data, allowing for real-time viewing and manipulation of data from anywhere in the world.Numerous modules for data filtering, summary statistics, and personalized and configurable dashboards. Implementing

  9. MEDEX2015: Greater Sea-Level Fitness Is Associated with Lower Sense of Effort During Himalayan Trekking Without Worse Acute Mountain Sickness.

    Science.gov (United States)

    Rossetti, Gabriella M K; Macdonald, Jamie H; Smith, Matthew; Jackson, Anna R; Callender, Nigel; Newcombe, Hannah K; Storey, Heather M; Willis, Sebastian; van den Beukel, Jojanneke; Woodward, Jonathan; Pollard, James; Wood, Benjamin; Newton, Victoria; Virian, Jana; Haswell, Owen; Oliver, Samuel J

    2017-06-01

    Rossetti, Gabriella M.K., Jamie H. Macdonald, Matthew Smith, Anna R. Jackson, Nigel Callender, Hannah K. Newcombe, Heather M. Storey, Sebastian Willis, Jojanneke van den Beukel, Jonathan Woodward, James Pollard, Benjamin Wood, Victoria Newton, Jana Virian, Owen Haswell, and Samuel J. Oliver. MEDEX2015: Greater sea-level fitness is associated with lower sense of effort during Himalayan trekking without worse acute mountain sickness. High Alt Med Biol. 18:152-162, 2017.-This study examined the complex relationships of fitness and hypoxic sensitivity with submaximal exercise responses and acute mountain sickness (AMS) at altitude. Determining these relationships is necessary before fitness or hypoxic sensitivity tests can be recommended to appraise individuals' readiness for altitude. Forty-four trekkers (26 men; 18 women; 20-67 years) completed a loaded walking test and a fitness questionnaire in normoxia to measure and estimate sea-level maximal aerobic capacity (maximum oxygen consumption [[Formula: see text]O 2max ]), respectively. Participants also completed a hypoxic exercise test to determine hypoxic sensitivity (cardiac, ventilatory, and arterial oxygen saturation responses to acute hypoxia, fraction of inspired oxygen [Fio 2 ] = 0.112). One month later, all participants completed a 3-week trek to 5085 m with the same ascent profile. On ascent to 5085 m, ratings of perceived exertion (RPE ascent ), fatigue by Brunel Mood Scale, and AMS were recorded daily. At 5085 m, RPE during a fixed workload step test (RPE fixed ) and step rate during perceptually regulated exercise (STEP RPE35 ) were recorded. Greater sea-level [Formula: see text]O 2max was associated with, and predicted, lower sense of effort (RPE ascent ; r = -0.43; p sea-level fitness reported less effort during simulated and actual trekking activities, had better mood (less fatigue), and chose a higher step rate during perceptually regulated exercise, but did not suffer from worse AMS

  10. Comparison of Geochemical, Grain-Size, and Magnetic Proxies for Rock Flour and Ice- Rafted Debris in the Late Pleistocene Mono Basin, CA

    Science.gov (United States)

    Zimmerman, S. H.; Hemming, S. R.; Kent, D. V.

    2008-12-01

    Advance and retreat of mountain glaciers are important indicators of climate variability, but the most direct proxy record, mapping and dating of moraines, is by nature discontinous. The Sierra Nevada form the western boundary of the Mono Lake basin, and the proximity of the large Pleistocene lake to the glacial canyons of the Sierra presents a rare opportunity to examine glacial variability in a continuous, well-dated lacustrine sequence. We have applied a geochemical proxy for rock flour to the glacial silts of the late Pleistocene Wilson Creek Formation, but because it is time- and sample-intensive, another method is required for a high-resolution record. Previous microscopic examination, thermomagnetic measurements, XRD analysis, and new isothermal remnant magnetization (IRM) acquisition curves show that the magnetic mineralogy is dominated by fine-grained, unaltered magnetite. Bulk measurements show strong susceptibility (mean ~ 16 x 10- 6 m3/kg) and remanent magnetization (mean IRM ~ 10-2 Am2/kg) compared to diluting components (carbonate, smectite, rhyolitic ash). The Wilson Creek type section sediments also contain a coarse lithic fraction, quantified by counting the >2cm clasts in outcrop and the >425 μm fraction in the bulk sediment. Susceptibility, IRM, and ARM (anhysteretic remnant magnetization) are quite similar throughout the type section, with the abundance of coarse lithic fraction correlative to the ratio k/IRM. Because the magnetic fraction of the rock flour is fine-grained magnetite, IRM should capture the changes in concentration of flour through time, and the major features of the (low-resolution) geochemical flour proxy record are identifiable in the IRM record. Flux-correction of the IRM results in a rock flour proxy record with major peaks between 36 and 48 ka, similar to a rock flour record from neighboring Owens Lake. This regional glacial signal contrasts with peaks in coarse lithics between 58 and 68 ka in the Wilson Creek record

  11. Incorporating Geoscience, Field Data Collection Workflows into Software Developed for Mobile Devices

    Science.gov (United States)

    Vieira, D. A.; Mookerjee, M.; Matsa, S.

    2014-12-01

    Modern geological sciences depend heavily on investigating the natural world in situ, i.e., within "the field," as well as managing data collections in the light of evolving advances in technology and cyberinfrastructure. To accelerate the rate of scientific discovery, we need to expedite data collection and management in such a way so as to not interfere with the typical geoscience, field workflow. To this end, we suggest replacing traditional analog methods of data collection, such as the standard field notebook and compass, with primary digital data collection applications. While some field data collecting apps exist for both the iOS and android operating systems, they do not communicate with each other in an organized data collection effort. We propose the development of a mobile app that coordinates the collection of GPS, photographic, and orientation data, along with field observations. Additionally, this application should be able to pair with other devices in order to incorporate other sensor data. In this way, the app can generate a single file that includes all field data elements and can be synced to the appropriate database with ease and efficiency. We present here a prototype application that attempts to illustrate how digital collection can be integrated into a "typical" geoscience, field workflow. The purpose of our app is to get field scientists to think about specific requirements for the development of a unified field data collection application. One fundamental step in the development of such an app is the community-based, decision-making process of adopting certain data/metadata standards and conventions. In August of 2014, on a four-day field trip to Yosemite National Park and Owens Valley, we engaged a group of field-based geologists and computer/cognitive scientists to start building a community consensus on these cyberinfrastructure-related issues. Discussing the unique problems of field data recording, conventions, storage, representation

  12. An investigation of nurse educator's perceptions and experiences of undertaking clinical practice.

    Science.gov (United States)

    Williams, Angela; Taylor, Cathy

    2008-11-01

    Educational policy (DOH, 1999. Making a difference: strengthening the nursing, midwifery and health visiting contribution to health and healthcare. Department of Health, London; UKCC, 1999. Fitness for Practice. United Kingdom Central Council for Nursing, Midwifery and Health Visiting, London; Nursing and Midwifery Council, 2006. Standards to support learning and assessment in practice. Nursing and Midwifery Council, London) and current nursing literature (Griscti, O., Jacono, B., Jacono, J., 2005. The nurse educator's clinical role. Journal of Advanced Nursing 50 (1), 84-92; Owen, S., Ferguson, K., Baguley, I., 2005. The clinical activity of mental health nurse lecturers. Journal of Psychiatric and Mental Health Nursing 12, 310-316), place increasing emphasis on nurse educators undertaking clinical practice to facilitate their clinical confidence and competence. This study investigated nurse educators' perceptions and experiences of undertaking clinical practice. A qualitative design and descriptive, exploratory approach were used. A purposive sample of 11 nurse educators in one nursing department, took part in two focus group interviews, one with 5 and the other with 6 respondents, to identify and discuss their perceptions and experiences of undertaking clinical practice. A process of thematic content analysis revealed three broad themes relating to the meaning and importance of clinical practice, perceived benefits and barriers which are examined and discussed. The paper concludes that despite policy recommendations, barriers highlighted in this study such as insufficient time, heavy workload and a lack of valuing of the clinical role have been raised over the past few decades. The effect of undertaking clinical practice, particularly on the quality of teaching is argued to be valuable armoury in the battle to secure sufficient resources to support engagement in clinical practice. Financial and organisational commitment; valuing of clinical practice and research

  13. Wilfred Own Re-Visited: A Psychoanalytic Reading of War, Memory, and Crisis of Identity in Wilfred Owen’s Poem Mental Cases

    Directory of Open Access Journals (Sweden)

    Ali Güneş

    2017-06-01

    Full Text Available This paper focuses upon the psychoanalytic reading of Wilfred Owen’s poem Mental Cases. In so doing, first, the paper examines how the disturbing experiences and feelings of a tragic event such as a war, torture, rape or murder, which the surviving  victims, civilians and veteran soldiers store in the realm of their unconscious in the Freudian sense, start annoying their feelings after a while. That is, these memories of the past event continuously come later on in life under the troubling influence of recurring flashbacks of the traumatic events, nightmares, irritability, anxiety, and social withdrawal. Eventually these undesirable traumatic past experiences and memories repressed in the unconscious obviously causes individuals to have a kind of psychological disorder which powerfully affects their daily behaviour, life and identity. Secondly, the paper explores this relationship between conscious and unconscious aspect of life, along with the perception of identity, in Owen’s poem Mental Cases, in which the shell-shocked, war-torn veteran soldiers, who experienced and witnessed the shock of World War I and the death of their fellow soldiers, constantly remember the soldiers and innocent civilians who were brutally killed or whom they brutally killed in World War I. Now, these veteran soldiers call back those unhappy times, along with the death of soldiers and civilians, and then suffer in their psyche with a sense of guilt and disappointment: that is, recalling their shocking traumatic war experiences and their killing of many innocent people apparently cripple their vision of life and shatter their identities in the present. Through his representation of these veteran soldiers in such a way, Owen, as in his other poems, artistically and forcefully shows his own reaction, anger and dissatisfaction about the war and its distressing outcome in Mental Cases. Finally, the paper also examines how Owen’s critical view of war and its traumatic

  14. Conducting polymer scaffolds for electrical control of cellular functions (Conference Presentation)

    Science.gov (United States)

    Inal, Sahika; Wan, Alwin M.; Williams, Tiffany V.; Giannelis, Emmanuel P.; Fischbach-Teschl, Claudia; Gourdon, Delphine; Owens, Róisín. M.; Malliaras, George G.

    2016-09-01

    Considering the limited physiological relevance of 2D cell culture experiments, significant effort was devoted to the development of materials that could more accurately recreate the in vivo cellular microenvironment, and support 3D cell cultures in vitro. (1) One such class of materials is conducting polymers, which are promising due to their compliant mechanical properties, compatibility with biological systems, mixed electrical and ionic conductivity, and ability to form porous structures. (2) In this work, we report the fabrication of a single component, macroporous scaffold made from poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) via an ice-templating method. (3) PEDOT:PSS scaffolds offer tunable pore size, morphology and shape through facile changes in preparation conditions, and are capable of supporting 3D cell cultures due to their biocompatibility and tissue-like elasticity. Moreover, these materials are functional: they exhibit excellent electrochemical switching behavior and significantly lower impedance compared to films. Their electrochemical activity enables their use in the active channel of a state of the art diagnostic tool in the field of bioelectronics, i.e., the organic electrochemical transistor (OECT). The inclusion of cells within the porous architecture affects the impedance of the electrically-conducting polymer network and, thus, may be used as a method to quantify cell growth. The adhesion and pro-angiogenic secretions of mouse fibroblasts cultured within the scaffolds can be controlled by switching the electrochemical state of the polymer prior to cell-seeding. In summary, these smart materials hold promise not only as extracellular matrix-mimicking structures for cell culture, but also as high-performance bioelectronic tools for diagnostic and signaling applications. References [1] M. Holzwarth, P. X. Ma, Journal of Materials Chemistry, 21, 10243-10251 (2011). [2] L. H. Jimison, J. Rivnay, R. M. Owens, in Organic

  15. X-ray clusters of galaxies

    International Nuclear Information System (INIS)

    McKee, J.D.

    1980-01-01

    This work is in three chapters, of which the first is an introduction to clusters of galaxies. The second chapter describes the HEAO A-2 Survey of Abell Clusters. The 225 clusters of galaxies listed in Abell's (1958) catalog which are of distance class four or less, were surveyed for 2 to 10 keV x-ray emission. Thirty-two identifications of x-ray sources with the clusters were made, fluxes and error boxes were determined for these sources; twelve of the identifications are new. The x-ray luminosity function has been derived and analytical fits have been made, the best fit is f(L) = 26.9 x 10 -8 exp( - L 44 /1.7) per Mpc per 10 44 erg s -1 per 2 to 10 keV band pass. The relationship between x-ray luminosity, Bautz-Morgan type, Rood-Sastry type, and richness has also been examined. The contribution of clusters to the x-ray background has been calculated from the luminosity function and has been found to be 3.5%, and with 90% certainty, less than 8% in the 2 to 10 keV band pass, assuming that clusters were not brighter in the past than they are at present. If they were bright enough in the past to account for the x-ray background, the evolution must have scaled more rapidly than (1 + z) 7 if clusters formed at z = 3, or (1 + z) 5 if clusters formed at z = 10. Chapter Three examines x-ray emission from poor clusters of galaxies. Burns and Owens' (1979) sample of 25 4C radio sources which coincide with Zwicky clusters of galaxies has been searched for x-ray emission in the HEAO A-2 data base. X-ray emission was detected from five sources at the 3sigma level, two exceeded 5 sigma. The search for x-ray emission was prompted by the knowledge of the existence of distorted radio sources in the clusters. The distortion implies the presence of a relatively dense intracluster medium which is expected to produce thermal bremsstrahlung x-ray emission

  16. Surface characterization of collagen/elastin based biomaterials for tissue regeneration

    International Nuclear Information System (INIS)

    Skopinska-Wisniewska, J.; Sionkowska, A.; Kaminska, A.; Kaznica, A.; Jachimiak, R.; Drewa, T.

    2009-01-01

    Collagen and elastin are the main proteins of extracellular matrix. Collagen plays a crucial role in tensile strength of tissues, whereas elastin provides resilience to many organs. Both biopolymers are readily available and biocompatible. These properties point out that collagen and elastin are good components of materials for many potential medical applications. The surface properties of biomaterials play an important role in biomedicine as the majority of biological reactions occur on the surface of implanted materials. One of the methods of surface modification is UV-irradiation. The exposition of the biomaterial on ultraviolet light can alterate surface properties of the materials, their chemical stability, swelling properties and mechanical properties as well. The aim of our work was to study the surface properties and biocompatibility of new collagen/elastin based biomaterials and consideration of the influence of ultraviolet light on these properties. The surface properties of collagen/elastin based biomaterials modified by UV-irradiation were studied using the technique of atomic force microscopy (AFM) and contact angle measurements. On the basis of the results the surface free energy and its polar component was calculated using Owens-Wendt method. To assess the biological performance of films based on collagen, elastin and their blends, the response of 3T3 cell was investigated. It was found that the surface of collagen/elastin film is enriched in less polar component - collagen. Exposition on UV light increases polarity of collagen/elastin based films, due to photooxidation process. The AFM images have shown that topography and roughness of the materials had been also affected by UV-irradiation. The changes in surface properties influence on interaction between the material's surface and cells. The investigation of 3T3 cells grown on films based on collagen, elastin and their blends, leads to the conclusion that higher content of elastin in biomaterial

  17. Surface characterization of collagen/elastin based biomaterials for tissue regeneration

    Energy Technology Data Exchange (ETDEWEB)

    Skopinska-Wisniewska, J., E-mail: joanna@chem.uni.torun.pl [Faculty of Chemistry, Nicolaus Copernicus University, Gagarin 7, 87-100 Torun (Poland); Sionkowska, A.; Kaminska, A. [Faculty of Chemistry, Nicolaus Copernicus University, Gagarin 7, 87-100 Torun (Poland); Kaznica, A.; Jachimiak, R.; Drewa, T. [Collegium Medicum, Nicolaus Copernicus University, Karlowicz 24, 85-092 Bydgoszcz (Poland)

    2009-07-15

    Collagen and elastin are the main proteins of extracellular matrix. Collagen plays a crucial role in tensile strength of tissues, whereas elastin provides resilience to many organs. Both biopolymers are readily available and biocompatible. These properties point out that collagen and elastin are good components of materials for many potential medical applications. The surface properties of biomaterials play an important role in biomedicine as the majority of biological reactions occur on the surface of implanted materials. One of the methods of surface modification is UV-irradiation. The exposition of the biomaterial on ultraviolet light can alterate surface properties of the materials, their chemical stability, swelling properties and mechanical properties as well. The aim of our work was to study the surface properties and biocompatibility of new collagen/elastin based biomaterials and consideration of the influence of ultraviolet light on these properties. The surface properties of collagen/elastin based biomaterials modified by UV-irradiation were studied using the technique of atomic force microscopy (AFM) and contact angle measurements. On the basis of the results the surface free energy and its polar component was calculated using Owens-Wendt method. To assess the biological performance of films based on collagen, elastin and their blends, the response of 3T3 cell was investigated. It was found that the surface of collagen/elastin film is enriched in less polar component - collagen. Exposition on UV light increases polarity of collagen/elastin based films, due to photooxidation process. The AFM images have shown that topography and roughness of the materials had been also affected by UV-irradiation. The changes in surface properties influence on interaction between the material's surface and cells. The investigation of 3T3 cells grown on films based on collagen, elastin and their blends, leads to the conclusion that higher content of elastin in

  18. The analysis and the three-dimensional, forward-fit modeling of the X-ray and the microwave emissions of major solar flares

    Science.gov (United States)

    Kuroda, Natsuha; Wang, Haimin; Gary, Dale E.

    2017-08-01

    It is well known that the time profiles of the hard X-ray (HXR) emission and the microwave (MW) emission during the impulsive phase of the solar flare are well correlated, and that their analysis can lead to the understandings of the flare-accelerated electrons. In this work, we first studied the source locations of seven distinct temporal peaks observed in HXR and MW lightcurves of the 2011-02-15 X2.2 flare using the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) and Nobeyama Radioheliograph. We found that the seven emission peaks did not come from seven spatially distinct sites in HXR and MW, but rather in HXR we observed a sudden change in location only between the second and the third peak, with the same pattern occurring, but evolving more slowly in MW, which is consistent with the tether-cutting model of solar flares. Next, we closely examine the widely-used notion of a "common population" of the accelerated electrons producing the HXR and the MW, which has been challenged by some studies suggesting the differences in the inferred energy spectral index and emitting energies of the HXR- and MW- producing electrons. We use the Non-linear Force Free Field model extrapolated from the observed photospheric magnetogram in the three-dimensional, multi-wavelength modeling platform GX Simulator, and attempt to create a unified electron population model that can simultaneously reproduce the observed X-ray and MW observations of the 2015-06-22 M6.5 flare. We constrain the model parameters by the observations made by the highest-resolving instruments currently available in two wavelengths, the RHESSI for X-ray and the Expanded Owens Valley Solar Array for MW. The results suggest that the X-ray emitting electron population model fits to the standard flare model with the broken, hardening power-law spectrum at ~300 keV that simultaneously produces the HXR footpoint emission and the MW high frequency emission, and also reveals that there could be a

  19. Synthesis of HCN and HNC in Ion-Irradiated N2-Rich Ices

    Science.gov (United States)

    Moore, M. H.; Hudson, R. L.; Ferrante, R. F.

    2002-11-01

    Near-IR observations reveal that nitrogen-rich ice containing small amounts of methane, CH4, and carbon monoxide, CO, is abundant on the surfaces of Triton, a moon of Neptune, and Pluto (Cruikshank et al.. 1993; Owen et al., 1993). N2-rich apolar ices are also possible in some interstellar environments (Ehrenfreund et al., 1998). To investigate the radiation chemical behavior of N2-dominated ices we performed a systematic IR study of ion-irradiated N2-rich ices containing CH4 and CO. Experiments at 18 K, showed that HCN, HNC, and the reactive molecule diazomethane, CH2N2, formed along with several radicals. NH3 was also identified in irradiated N2 + CH4. Comparing results from similarly photolyzed ices (Bohn et al., 1994) shows that the significant difference between radiolysis and photolysis of these N2-dominated ices is that photolyzed ices do not form detectable HCN and HNC. Our experiments examined different N2/CH4 ratios, the half-life of CH4, possible HCN and HNC formation routes, and competing pathways in the presence of CO. Intrinsic band strengths (A(HCN) and A(HNC)) were measured and used to calculate nearly equal values of HCN and HNC yields in N2+CH4 irradiated ices. Low temperature results apply to interstellar ices. Reaction products that appear at 30-35 K are also expected to form and survive on the surfaces of Triton and Pluto and interstellar grains. We examined the evolution of ice features as species undergo acid-base (acids such as HCN, HNC, HNCO and a base NH3) reactions triggered by warming from 18 K to 30-35 K. We identified anions (OCN-, CN- and N3-) attributed to relatively stable salts in ices where NH4+ is the likely cation. These results also have an astrobiology implication since many of these products (HCN, HNC, HNCO, NH3, NH4OCN, and NH4CN) are reactants used in synthesis studies of bio- molecules such as amino acids and peptides.

  20. Obituary: Michael James Ledlow, 1964-2004

    Science.gov (United States)

    Puxley, Philip John; Grashuis, Randon M.

    2004-12-01

    Michael James Ledlow died on 5 June 2004 from a large, unsuspected brain tumor. Since 2000 he had been on the scientific staff of the Gemini Observatory in La Serena, Chile, initially as a Science Fellow and then as a tenure-track astronomer. Michael was born in Bartlesville, Oklahoma on 1 October 1964 to Jerry and Sharon Ledlow. He obtained his Bachelor Degree in astrophysics at the University of Oklahoma in 1987 and attended the University of New Mexico for his graduate work, obtaining his PhD while studying Galaxy Clusters under Frazer Owen in 1994. From 1995-1997 Michael held a postdoctoral position with Jack Burns at New Mexico State University where he used various astronomical facilities including the VLA and Apache Point Observatory to study distant galaxies. From 1998-2000 Michael rejoined the Physics and Astronomy Department at the University of New Mexico where he was a visiting professor until he moved on to Gemini. At the Gemini Observatory, Mike shared in the excitement, hard work and many long days and nights associated with bringing on-line a major new astronomical facility and its instrumentation. Following its commissioning he assisted visiting observers, supported and took data for many more remote users via the queue system, and for each he showed the same care and attention to detail evident in his own research to ensure that all got the best possible data. His research concentrated on the radio and optical properties of galaxy clusters, especially rich Abell clusters such as A2125, on luminous radio galaxies, including the detection of a powerful double radio source in the "wrong sort of galaxy," the spiral system 0313-192, and on EROs (extremely red objects), dusty galaxies barely detectable at optical wavelengths. Michael thoroughly enjoyed living in Chile and enthusiastically immersed himself in the culture of his surroundings. He and his family were actively involved with the International English Spanish Association in La Serena. He had a