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Sample records for elena survilien edita

  1. ELENA antiproton facility

    NASA Astrophysics Data System (ADS)

    Bartmann, Wolfgang; Belochitskii, Pavel; Breuker, Horst; Butin, François Carli, Christian; Eriksson, Tommy; Maury, Stephen; Oelert, Walter; Pasinelli, Sergio; Tranquille, Gerard

    The following sections are included: * Motivation to build ELENA * From initial ideas to machine project * Choice of ELENA extraction energy * ELENA layout and optics * ELENA cycle * Beam extraction and main machine parameters * Beam instrumentation * ELENA transfer lines * ELENA experimental areas * Conclusion * References

  2. Ecotourism: The Santa Elena Rainforest Project.

    ERIC Educational Resources Information Center

    Wearing, Stephen

    1993-01-01

    Describes an ecotourism project in which the community of Santa Elena, Costa Rica, are developing a rainforest reserve on government land leased permanently to the local high school. Discusses the impact of the project on the community's economy and environment. (Contains 30 references.) (MDH)

  3. Significant Silence in Elena Garro's "Los Perros"

    ERIC Educational Resources Information Center

    Burke, Jessica

    2010-01-01

    Elena Garro's one-act play "Los perros" (1958) confronts the difficult issue of sexual violence in rural Mexico, a problem that persists today. The characters struggle with the social reality of rape, alluding to the threat of sexual violence while avoiding addressing it directly. While words are granted an almost magical power in "Los perros",…

  4. Enhancement of the Gelation Properties of Surimi from Yellowtail Seabream (Parargyrops edita, Sparidae) with Chinese Oak Silkworm Pupa, Antheraea pernyi.

    PubMed

    Zhu, Jialin; Fan, Daming; Zhao, Jianxin; Zhang, Hao; Huang, Jianlian; Zhou, Wenguo; Zhang, Wenhai; Chen, Wei

    2016-02-01

    In this study, the textural properties and micromechanism of yellowtail seabream (Parargyrops edita, Sparidae) surimi, with and without Chinese oak silkworm pupa homogenate (SPH), were investigated at different levels. The fresh, freeze-dried, and oven-dried SPH all showed a gel-enhancing ability in suwari (40/90 °C) and modori (67/90 °C) gels, in a concentration-dependent manner. Though the drying treatments can improve the storability of SPH, compared with fresh, the effect of the active substance was weakened. Suwari and modori gels added with 5%(w/w, whole product) fresh SPH had the increase in breaking force and deformation by 37.39% and 47.98%, and 85.14% and 78.49%, respectively, compared with the control gel (without SPH addition). The major myofibrillar protein, especially myosin heavy chain (MHC), was better retained by the addition of SPH. Compared the control group, a finer, denser, and more ordered 3-dimensional gel network microstructure was obtained, and different Df (Fractal dimension) was analyzed by using the box count method. This was found in all samples from 2.838 to 2.864 for suwari gels and 2.795 to 2.857 for modori gels, respectively. Therefore, the modori of yellowtail seabream surimi, linked with endogenous proteases, could be retarded in the presence of SPH, leading to an increase in gel strength. PMID:26709730

  5. STS-84 Post Landing - Valery Ryumin greets wife Elena Kondakova

    NASA Technical Reports Server (NTRS)

    1997-01-01

    KENNEDY SPACE CENTER, FL - Veteran cosmonaut Valery Ryumin greets his wife, STS-84 Mission Specialist Elena V. Kondakova, with some flowers after the Space Shuttle orbiter Atlantis lands on KSC's Runway 33. STS-84 was the sixth docking of the Space Shuttle with the Russian Space Station Mir. The nine-day STS-84 mission was Kondakova's second space flight, but her first on the Space Shuttle. She spent 169 days in space as flight engineer of the 17th main mission on Mir from October 1994 to March 1995. Her husband is now director of the Mir-Shuttle program for Russia.

  6. The future of the cern ad infrastructures in the context of elena machine design and integration

    NASA Astrophysics Data System (ADS)

    Bartmann, W.; Belochitskii, P.; Butin, F.; Carli, C.; Choisnet, O.; Eriksson, T.; Kersevan, R.; Maridor, S.; Maury, S.; Tranquille, G.

    2014-06-01

    ELENA will lower the energy of AD antiprotons from 5MeV to 100keV, thus increasing by a factor of up to 100 the number of antiprotons usable by the experiments (Oelert et al. 2014). The AD infrastructures must be adapted to cope with another 20 years of low energy antiproton physics. To fit the ELENA ring in the already crowded AD hall, old kicker generators must be relocated to a new technical building, existing and new services and racks must be re-arranged also at height, preserving access and maintenance capabilities. The ELENA beam will be delivered to existing experiments via new transfer lines without compromising the possibility to maintain a visitors path to this very popular place at CERN.

  7. The BepiColombo Serena/ELENA instrument: performances and testing

    NASA Astrophysics Data System (ADS)

    Orsini, Stefano; De Angelis, Elisabetta; Selci, Stefano; Di Lellis, Andrea; Leoni, Roberto; Rispoli, Rosanna; Colasanti, Luca; Vertolli, Nello; Mura, Alessandro; Milillo, Anna; D'Alessandro, Marco; Mattioli, Francesco; Maschietti, Daniele; Brienza, Daniele; Scheer, Juergen; Wurz, Peter

    2013-04-01

    The neutral sensor ELENA (Emitted Low-Energy Neutral Atoms) for the ESA cornerstone BepiColombo mission to Mercury (in the SERENA instrument package) is a new kind of low energetic neutral atoms instrument, mostly devoted to sputtering emission from planetary surfaces, from E ~20 eV up to E~5 keV, within 1-D (4.5°x76°). ELENA is a Time of Flight instrument, based on the novel concept of ultra-sonic oscillating shutter as Start section and MCP detector with 32 discrete anodes as a direct Stop section. ELENA will monitor the emission of neutral atoms from the whole surface of Mercury allowing to investigate the interaction between the environment and the planet, the global particle loss-rate and the remote sensing of the surface properties. In particular, surface release processes are investigated by identifying particles release from the surface via solar wind-induced ion sputtering (<1eV - >100 eV) as well as Hydrogen back-scattered at hundreds eV. The results of ELENA performance test, will be presented: the innovative Shutter system (Start section) operating at requested frequencies (around 43kHz), the ion rejection capability of double deflection system, the Stop detector, the electronic boards, the validation test.

  8. BepiColombo Serena/ELENA instrument:development and testing

    NASA Astrophysics Data System (ADS)

    Orsini, S.; De Angelis, E.; Selci, S.; Di Lellis, A. M.:; Leoni, R.; Rispoli, R.; Colasanti, L.; Vertolli, N.; Scheer, J.; Mura, A.; Milillo, A.; Wurz, P.; D'Alessandro, M.; Maschietti, D.; Mattioli, F.; Cibella, S.; Brienza, D.; lo Spazio, Compagnia Generale per

    2012-04-01

    ELENA is a TOF sensor, based on a novel concept ultra-sonic oscillating shutter (Start section) which is operated at frequencies up to 50 kHz; a MCP detector is used as a Stop section. It is aimed to detect neutral atoms in the range 10 eV - 5 keV, within 70° FOV, perpendicular to the S/C orbital plane. ELENA will monitor the emission of neutral atoms from the whole surface of Mercury thanks to the spacecraft motion. The major scientific objectives are the interaction between the environment and the planet, the global particle loss-rate and the remote sensing of the surface properties. In particular, surface release processes are investigated by identifying particles release from the surface, via solar wind-induced ion sputtering (<1eV - >100 eV) as well as Hydrogen back-scattered at hundreds eV. In particular, the capability to detect non-thermal low energy neutral species is crucial for the sensor ELENA (Emitted Low-Energy Neutral Atoms), part of the package SERENA (Search for Exospheric Refilling and Emitted Natural Abundances) on board the BepiColombo mission to Mercury to be launched in 2014. The instrument is now validated and tested to reach its performances: the up-graded shutter system (Start section) has been operated for the first time with neutral atom beam and tested at high frequency, the Stop section has been calibrated investigating the region of very low energy detection efficiency, the electronics boards and the entire acquisition chain has been appointed and tested with ion beam. The first results of all the ELENA capability will be presented.

  9. [Elena de Cespedes: The eventful life of a XVI century surgeon].

    PubMed

    Carrillo Esper, Raúl; Carrillo Córdova, Jorge Raúl; Carrillo Córdova, Luis Daniel; Carrillo Córdova, Dulce María; Carrillo Córdova, Carlos Alberto

    2015-01-01

    Throughout the history of surgery there have been exceptional cases of surgeons around the world. One of them is Elena/o of Cespedes. Born as a girl, this hermaphrodite dedicated all his life to acting as a man, doing jobs that were only for men such as a soldier, peasant, and surgeon. She was the first licensed surgeon in Spain and maybe in all Europe. She married a woman and then was tried for sodomy by the Spanish Inquisition commanded by inquisitor Lope de Mendoza. She was founded guilty and punished with 200 lashes and a 10-year service at a hospital, dressed as a woman. PMID:26290033

  10. Geology of the Santa Elena Peninsula, Costa Rica and its implications for the tectonic evolution of the Central America-Caribbean region

    SciTech Connect

    Lew, L.R.

    1985-01-01

    The Santa Elena Peninsula of Costa Rice represents an Aptian to Middle Eocene intraoceanic volcanic arc formed on a basement of serpentinized periodotite. This peridotite was probably part of the oceanic lithosphere formed at a spreading ridge which began to separate South America from North America in pre-Jurassic time. The arc resulted from northward subduction of oceanic crust along one ENE-trending trench about 70 km south of Santa Elena. The first phase of tectonism, arc volcanism, and sedimentation occurred in the area from Aptian to Campanian time. Carbonate bank limestone were deposited on the peridotite, which had been tilted and uplifted along E-W-trending high angle faults. A second volcanic arc developed above the limestone and was active until the Middle Eocene. From the Campanian to the Middle Eocene a forearc basin evolved south of the arc and a backarc basin north of it. A major Middle Eocene tectonic episode was associated with termination of activity of the Santa Elena subduction zone. This involved both thin-skinned deformation and reactivation of the steep basement faults to juxtapose peridotite and Campanian to Middle Eocene sediments. Existing models of the early plate tectonic evolution of the region, postulating initiation of spreading in the Jurassic, and development of a major transform in the Santa Elena area in the Cretaceous, are incompatible with the geology of the Santa Elena area. New models have been formulated genetically relating the structures in the Santa Elena tectonic province to northward subduction.

  11. DESIGN AND SHIELDING OF A BEAM LINE FROM ELENA TO ATRAP USING ELECTROSTATIC QUADRUPOLE LENSES AND BENDS

    SciTech Connect

    Yuri, Yosuke; Lee, Edward P.

    2010-09-01

    The construction of the Extra Low ENergy Antiprotons (ELENA) upgrade to the Antiproton Decelerator (AD) ring has been proposed at CERN to produce a greatly increased current of low-energy antiprotons for various experiments including anti-hydrogen studies. This upgrade involves the addition of a small storage ring and electrostatic beam lines. The 5.3-MeV antiproton beams from AD are decelerated down to 100 keV in the compact ring and transported to each experimental apparatus. In this paper, we describe an electrostatic beam line from the ELENA ring to the ATRAP experimental apparatus and magnetic shielding of the low-energy beam line against the ATRAP superconducting solenoid magnet. A possible rough conceptual design of this system is displayed.

  12. A melt-focusing zone in the lithospheric mantle preserved in the Santa Elena Ophiolite, Costa Rica

    NASA Astrophysics Data System (ADS)

    Madrigal, Pilar; Gazel, Esteban; Denyer, Percy; Smith, Ian; Jicha, Brian; Flores, Kennet E.; Coleman, Drew; Snow, Jonathan

    2015-08-01

    The Santa Elena Ophiolite in Costa Rica is composed of a well-preserved fragment of the lithospheric mantle that formed along a paleo-spreading center. Within its exposed architecture, this ophiolite records a deep section of the melt transport system of a slow/ultra-slow spreading environment, featuring a well-developed melt-focusing system of coalescent diabase dikes that intrude the peridotite in a sub-vertical and sub-parallel arrangement. Here we present an integrated analysis of new structural data, 40Ar/39Ar geochronology, major and trace element geochemistry and radiogenic isotope data from the diabase dikes in order to elucidate the tectonic setting of the Santa Elena Ophiolite. The dikes are basaltic and tholeiitic in composition. Petrological models of fractional crystallization suggest deep pressures of crystallization of > 0.4 GPa for most of the samples, which is in good agreement with similar calculations from slow/ultra-slow spreading ridges and require a relatively hydrated (~ 0.5 wt.% H2O) MORB-like source composition. The diabase dikes share geochemical and isotope signatures with both slow/ultra-slow spreading ridges and back-arc basins and indicate mixing of a DMM source and an enriched mantle end-member like EMII. The 40Ar/39Ar geochronology yielded an age of ~ 131 Ma for a previous pegmatitic gabbroic magmatic event that intruded the peridotite when it was hot and plastic and an age of ~ 121 Ma for the diabase intrusions, constraining the cooling from near asthenospheric conditions to lithospheric mantle conditions to ~ 10 Ma. Our findings suggest a complex interplay between oceanic basin and back-arc extension environments during the Santa Elena Ophiolite formation. We propose an alternative hypothesis for the origin of Santa Elena as an obducted fragment of an oceanic core complex (OCC).

  13. The Regina Elena National Cancer Institute process of accreditation according to the standards of the Organisation of European Cancer Institutes.

    PubMed

    Canitano, Stefano; Di Turi, Annunziata; Caolo, Giuseppina; Pignatelli, Adriana C; Papa, Elena; Branca, Marta; Cerimele, Marina; De Maria, Ruggero

    2015-01-01

    The accreditation process is, on the one hand, a tool used to homogenize procedures, rendering comparable and standardized processes of care, and on the other, a methodology employed to develop a culture of quality improvement. Although not yet proven by evidence-based studies that health outcomes improve as a result of an accreditation to excellence, it is undeniable that better control of healthcare processes results in better quality and safety of diagnostic and therapeutic pathways. The Regina Elena National Cancer Institute underwent the accreditation process in accordance with the standards criteria set by the Organisation of European Cancer Institutes (OECI), and it has recently completed the process, acquiring its designation as a Comprehensive Cancer Center (CCC). This was an invaluable opportunity for the Regina Elena Institute to create a more cohesive environment, to widely establish a culture of quality, to implement an institutional information system, and to accelerate the process of patient involvement in strategic decisions. The steps of the process allowed us to evaluate the performance and the organization of the institute and put amendments in place designed to be adopted through 26 improvement actions. These actions regarded several aspects of the institute, including quality culture, information communication technology system, care, clinical trials unit, disease management team, nursing, and patient empowerment and involvement. Each area has a timeline. We chose to present the following 3 improvement actions: clinical trial center, computerized ambulatory medical record, and centrality of patient and humanization of clinical pathway. PMID:27096274

  14. Geochemical evidence for active tropical serpentinization in the Santa Elena Ophiolite, Costa Rica: An analog of a humid early Earth?

    NASA Astrophysics Data System (ADS)

    Sánchez-Murillo, Ricardo; Gazel, Esteban; Schwarzenbach, Esther M.; Crespo-Medina, Melitza; Schrenk, Matthew O.; Boll, Jan; Gill, Ben C.

    2014-05-01

    is a planetary process that has important consequences on geochemical cycles, supporting microbial activity through the formation of H2 and CH4 and having the potential to sequester atmospheric CO2. We present geochemical evidence of active serpentinization in the Santa Elena Ophiolite, Costa Rica which is sustained by peridotites with a degree of serpentinization less than 50% with no evidence of an internal heat source. Average spring water temperatures are 29.1°C. Two hyperalkaline spring systems were discovered, with a spring fluid pH up to 11.18. The fluids are characterized by low Mg (1.0-5.9 mg/L) and K (1.0-5.5 mg/L) and relative high Ca (29-167 mg/L), Na (16-27 mg/L), Cl (26-29 mg/L), hydroxide (41-63 mg/L), and carbonate (31-49 mg/L). Active CH4 (24.3% v/v) vents coupled with carbonate deposits (δ13CCO2 =-27 to -14‰; δ18OCO2 =-17 to - 6‰) also provide evidence for active serpentinization and carbonation. Isotope ratios of the alkaline fluids (δ18O = -7.9‰, δ2H = -51.4‰) and groundwater (δ18O = -7.6‰; δ2H = -48.0‰) suggests that, during base flow recession, springs are fed by groundwater circulation. Methanogenic Archaea, which comprises a relatively high percentage of the 16S rRNA gene tag sequences, suggests that biological methanogenesis may play a significant role in the system. Santa Elena's extreme varying weather results in a scenario that could be of significant importance for (a) improving the knowledge of conditions on a humid early Earth or Mars that had periodic changes in water supply, (b) revealing new insights on serpentinizing solute transport, and (c) modeling hydrogeochemical responses as a function of recharge.

  15. Is There any Relationship Between the Santa Elena Depression and Chicxulub Impact Crater, Northwestern Yucatan Peninsula, Mexico?

    NASA Astrophysics Data System (ADS)

    Lefticariu, L.

    2005-05-01

    The Terminal Cretaceous Chicxulub Impact Crater had a strong control on the depositional and diagenetic history of the northern Yucatan Platform during most of the Cenozoic Era. The Chicxulub Sedimentary Basin (henceforth Basin), which approximately coincides with the impact crater, is circumscribed by a concentration of karstic sinkholes known as the Ring of Cenotes. Santa Elena Depression (henceforth Depression) is the name proposed for the bowl-shaped buried feature, first contoured by geophysical studies, immediately south of the Basin, in the area where the Ticul 1 and UNAM 5 wells were drilled. Lithologic, petrographic, and biostratigraphic data on PEMEX, UNAM, and ICDP cores show that: 1) Cenozoic deposits are much thicker inside the Basin than inside the Depression, 2) in general, the Cenozoic formations from inside the Depression are the thickest among those outside the Basin, 3) variably dolomitized pelagic or outer-platform wackestone or mudstone occur both inside the Basin and Depression, 4) the age of the deeper-water sedimentary carbonate rocks is Paleocene-Eocene inside the Basin and Paleocene?-Early Eocene inside the Depression, 5) the oldest formations that crop out are of Middle Eocene age at the edge of the Basin and Early-Middle Eocene age inside the Depression, 6) saline lake deposits, that consist chiefly of anhydrite, gypsum, and fine carbonate, and also contain quartz, chert, clay, zeolite, potassium feldspar, pyrite, and fragments of wood, are present in the Cenozoic section of the UNAM 5 core between 282 and 198 m below the present land surface, 7) the dolomite, subaerial exposure features (subaerial crusts, vugs, karst, dedolomite), and vug-filling cement from the Eocene formations are more abundant inside the Depression than inside the Basin. The depositional environments that are proposed for explaining the Cenozoic facies succession within the Santa Elena Depression are: 1) deeper marine water (Paleocene?-Early Eocene), 2) relatively

  16. Platinum group and chalcophile element systematics of serpentinized peridotites from the St. Elena ophiolite in Costa Rica

    NASA Astrophysics Data System (ADS)

    Holm, J.; Bizimis, M.; Schwarzenbach, E. M.; Foustoukos, D.; Frisby, C. P.; Brandon, A. D.; Gazel, E.

    2015-12-01

    We present in situ LA-ICPMS data on platinum group element (PGE) and chalcophile element (namely Cu, Ag, Te, Au, Pb) systematics in sulfides from partially serpentinized peridotites of the St. Elena ophiolite, Costa Rica. PGE are strong indicators of primary mantle processes, though their behavior during low temperature alteration processes such as serpentinization is not well understood. St. Elena sulfides are dominantly pentlandites that coexist with Fe-Ni alloys and native Cu. This indicates extremely low fO2 and fS2 conditions likely established during the early stages of serpentinization. We observe extremely variable PGE-Re concentrations in the sulfides, (e.g. [Os] = 2 - 100,000 times primitive mantle, PM). Low [Os] sulfides have high Pd/Os, which in turn correlates positively with Cu concentrations, suggesting Pd enrichment through Cu-rich fluids (e.g. Schwarzenbach et al., 2014, CMP) as opposed to melt-rock reaction. Sulfide PM-normalized PGE-Re patterns are dominated by strong Pt depletions (e.g., Pt/Pd = 0.80-0.0009). Occasional Pt enrichments over Pd and Ru (or Rh) in a PM-normalized pattern (~5% of the sulfide population) often correlate with Te and/or Au enrichments. Pt enrichment was also observed in a composite pentlandite-awaruite, suggesting possible exsolution of Pt from sulfides under extremely low fS2 conditions. Pb concentrations do not correlate with other chalcophiles or PGE. Pb ranges from 0.01-31.64 ppm with the majority of sulfides <5 ppm, and an average concentration of 2.77 ppm (n=64). Assuming that this Pb concentration is representative of mantle sulfides, this implies that Pb is not dominantly held in sulfides in the upper mantle. Combination of in situ and bulk rock PGE analyses will be used to distinguish the effects of primary magmatic signatures (e.g., melt depletion, melt-rock interaction) and secondary processes such as serpentinization on the PGE-Re and chalcophile element systematics of these sulfides.

  17. Sulfur and carbon geochemistry of the Santa Elena peridotites: Comparing oceanic and continental processes during peridotite alteration

    NASA Astrophysics Data System (ADS)

    Schwarzenbach, Esther M.; Gill, Benjamin C.; Gazel, Esteban; Madrigal, Pilar

    2016-05-01

    Ultramafic rocks exposed on the continent serve as a window into oceanic and continental processes of water-peridotite interaction, so called serpentinization. In both environments there are active carbon and sulfur cycles that contain abiogenic and biogenic processes, which are eventually imprinted in the geochemical signatures of the basement rocks and the calcite and magnesite deposits associated with fluids that issue from these systems. Here, we present the carbon and sulfur geochemistry of ultramafic rocks and carbonate deposits from the Santa Elena ophiolite in Costa Rica. The aim of this study is to leverage the geochemistry of the ultramafic sequence and associated deposits to distinguish between processes that were dominant during ocean floor alteration and those dominant during low-temperature, continental water-peridotite interaction. The peridotites are variably serpentinized with total sulfur concentrations up to 877 ppm that is typically dominated by sulfide over sulfate. With the exception of one sample the ultramafic rocks are characterized by positive δ34Ssulfide (up to + 23.1‰) and δ34Ssulfate values (up to + 35.0‰). Carbon contents in the peridotites are low and are isotopically distinct from typical oceanic serpentinites. In particular, δ13C of the inorganic carbon suggests that the carbon is not derived from seawater, but rather the product of the interaction of meteoric water with the ultramafic rocks. In contrast, the sulfur isotope data from sulfide minerals in the peridotites preserve evidence for interaction with a hydrothermal fluid. Specifically, they indicate closed system abiogenic sulfate reduction suggesting that oceanic serpentinization occurred with limited input of seawater. Overall, the geochemical signatures preserve evidence for both oceanic and continental water-rock interaction with the majority of carbon (and possibly sulfate) being incorporated during continental water-rock interaction. Furthermore, there is

  18. Compositional diversity in peridotites as result of a multi-process history: The Pacific-derived Santa Elena ophiolite, northwest Costa Rica

    NASA Astrophysics Data System (ADS)

    Escuder-Viruete, Javier; Baumgartner, Peter O.; Castillo-Carrión, Mercedes

    2015-08-01

    The Santa Elena ophiolite (SEO) is an ultramafic nappe of more than 270 km2 overlying a tectonic serpentinite-matrix mélange in northwest Costa Rica. It is mainly composed of Cpx-rich and Cpx-poor harzburgites (~ 2.5 km-thick), with minor lherzolite, dunite and chromitite, as well as intrusive mafic sills and subvertical dikes, which coalesce into an upper Isla Negritos gabbroic sill complex. Minerals and whole-rock features of the Cpx-rich and Cpx-poor harzburgites share features of the abyssal and supra-subduction zone (SSZ) peridotites, respectively. To explain these characteristics two-stages of melting and refertilization processes are required. By means of trace element modeling, the composition of Cpx-rich harzburgites may be reproduced by up to ~ 5-10% melting of a primitive mantle source, and the composition of Cpx-poor harzburgites and dunites by ~ 15-18% melting of an already depleted mantle. Therefore, the Cpx-rich harzburgites can be interpreted as product of first-stage melting and low-degrees of melt-rock interaction in a mid-ocean ridge environment, and the Cpx-poor harzburgites and dunites as the product of second-stage melting and refertilization in a SSZ setting. The mafic sills and the Isla Negrito gabbros are genetically related and can be explained as crystallization from the liquids that were extracted from the lower SSZ mantle levels and emplaced at shallow conditions. The Murciélagos Island basalts are not directly related to the ultramafic and mafic rocks of the SEO. Their E-MORB-like composition is similar to most of the CLIP mafic lavas and suggests a common Caribbean plume-related source. The SEO represents a fragment of Pacific-derived, SSZ oceanic lithosphere emplaced onto the southern North America margin during the late Cretaceous. Because of the predominance of rollback-induced extension during its history, only a limited amount of crustal rocks were formed and preserved in the SEO.

  19. Interpreting Bodies. Elena Castellani (ed.) Interpreting Bodies: Classical and Quantum Objects in Modern Physics (Princeton: Princeton University Press, 1998), viii+329 pp., ISBN 0-691-01725-5, paperback, 19.95 US, ISBN 0-691-01724-7, cloth, 65.00 US.

    NASA Astrophysics Data System (ADS)

    Ruetsche, Laura

    The objects of the empirical science known as particle physics are not like objects ordinarily conceived. Physicists' particles can enter states strangely entangled with those of other particles; they can obey statistics which suggest that they lack genidentity; their properties (some think) are created in measurement, or (others think) can only be limned from the symmetries of the theory describing them. 'The implications of contemporary physical theories for the debate on the nature of objects' provides 'the central theme' (p. 4) of Interpreting Bodies, editor Elena Castellani's new collection of essays. Contributions to the volume vary dramatically in vintage (Born's and Reichenbach's are well into middle age; others appear here for the first time); in approach (the collection includes Giuliano Toraldo diFrancia's nine-page history of the object concept from Democritus to d'Espagnat, Peter Mittelstaedt's discussion of the Kantian constitution of quantum objects, and Giulo Peruzzi's explication of the scattering cross section and its role in experimental particle physics); and in intended audience. Lacking the space to treat each contribution in turn, I will focus on those dealing with the problem of the One and the Many.

  20. Pedagogia de la Participacion: Entering Elena Garro's "Un hogar solido" through the Body. Enacting Death and Politics in Mexico

    ERIC Educational Resources Information Center

    Misemer, Sarah M.

    2009-01-01

    Garro's one-act play offers an unusual combination of corpses and animate actors on stage thus combining life and death in the same body. Garro's piece presents students with an approach to "embodying" Mexican culture and its notions of death. The fusion of death and cultural practices in Mexico is a crucial part of the ongoing project for…

  1. A new species of poeciliid fish, Poeciliopsis santaelena, from Peninsula Santa Elena, Area De Conservación Guanacaste, Costa Rica.

    PubMed

    Bussing, William A

    2008-06-01

    An undescribed freshwater fish was recently discovered during a biological inventory of Area de Conservaci6n Guanacaste, northwestern Costa Rica. This new species of Poeciliopsis is closely related to a group of widespread species of small spotted fishes designated as the Poeciliopsis gracilis complex in this study. The complex extends on both versants from southern Mexico to Nicaragua, and with this new finding, extends into Costa Rica. The new species is distinguished from its Central American relatives by its lack of lateral and ventral markings, higher pectoral and caudal-fin counts and more posterior placement of the dorsal fin. Poeciliopsis santaelena is endemic to the Rio Potrero Grande, a river whose flow is reduced to just a few pools during the long dry season and flows fully only during very rainy weather. It is just another in a growing list of threatened or endangered species found in this unique peninsular environment. PMID:19256446

  2. 78 FR 9927 - Agency Information Collection Activities; Proposed Collection; Comment Request; State Program Report

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-12

    ...: Notice. SUMMARY: The Administration for Community Living (ACL) is announcing an opportunity for public.... ADDRESSES: Submit electronic comments on the collection of information to: Elena.Fazio@acl.hhs.gov Submit... CONTACT: Elena Fazio by telephone: (202)357- 3583 or by email: Elena.Fazio@acl.hhs.gov ....

  3. Taxonomy 2.0: Sequencing of old type specimens supports the description of two new species of the Lasiocampa decolorata group from Morocco (Lepidoptera, Lasiocampidae).

    PubMed

    Speidel, Wolfgang; Hausmann, Axel; Müller, Günter C; Kravchenko, Vasiliy; Mooser, Josef; Witt, Thomas J; Khallaayoune, Khalid; Prosser, Sean; Hebert, Paul D N

    2015-01-01

    The type of Lasiocampa decolorata (KLUG, 1830), collected in 1820, was successfully barcoded to generate a 658bp COI-fragment after 194 years. The resulting molecular data allowed the description of two closely related species from Morocco: Lasiocampa hannae SPEIDEL, MOOSER & WITT sp. n. from the Anti Atlas and Lasiocampa editae SPEIDEL, MOOSER & WITT sp. n. from the High Atlas. PMID:26623584

  4. Coming to Terms with Conceptual Knowledge: One Teacher's Journal.

    ERIC Educational Resources Information Center

    Ebert, Christine L.

    This study describes the emerging mathematical understanding of one student enrolled in an elementary mathematics content course. Through the medium of her journal entries, a portrait of Elena's struggle to overcome her difficulty with mathematics and construct conceptual knowledge emerges. Though these struggles are not unique, Elena's story is…

  5. Language experience narratives and the role of autobiographical reasoning in becoming an urban science teacher

    NASA Astrophysics Data System (ADS)

    Rivera Maulucci, Maria S.

    2011-06-01

    One of the central challenges globalization and immigration present to education is how to construct school language policies, procedures, and curricula to support academic success of immigrant youth. This case-study compares and contrasts language experience narratives along Elena's developmental trajectory of becoming an urban science teacher. Elena reflects upon her early language experiences and her more recent experiences as a preservice science teacher in elementary dual language classrooms. The findings from Elena's early schooling experiences provide an analysis of the linkages between Elena's developing English proficiency, her Spanish proficiency, and her autobiographical reasoning. Elena's experiences as a preservice teacher in two elementary dual language classrooms indicates ways in which those experiences helped to reframe her views about the intersections between language learning and science learning. I propose the language experience narrative, as a subset of the life story, as a way to understand how preservice teachers reconstruct past language experiences, connect to the present, and anticipate future language practices.

  6. Chalazia and Styes

    MedlinePlus

    ... Kierstan Boyd Reviewed by: Elena M Jimenez MD Mar. 10, 2014 A chalazion and a stye are ... Puffiness Oct 01, 2015 Recurring Styes and Chalazion Mar 16, 2015 Can stye compromise a heart device? ...

  7. 77 FR 33561 - Unblocking of Specially Designated Nationals and Blocked Persons Pursuant to Executive Order 12978

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-06

    .... 1701-1706) (``IEEPA''), issued Executive Order 12978 (60 FR 54579, October 24, 1995) (the ``Order... interests in property were blocked pursuant to the Order: Individuals 1. AGUILAR ROJAS, Luz Elena,...

  8. 2. Skewed view of E elevation of sugar mill looking ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. Skewed view of E elevation of sugar mill looking NW. - Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of PR Route 2 Bridge Over Rio De La Plata, Toa Baja, Toa Baja Municipio, PR

  9. Complete mitochondrial genome of black porgy Acanthopagrus schlegelii (Perciformes, Sparidae).

    PubMed

    Shi, Xiaofeng; Su, Yongquan; Wang, Jun; Ding, Shaoxiong; Mao, Yong

    2012-08-01

    Black porgy, Acanthopagrus schlegelii, is a marine protandrous hermaphrodite and belongs to one of the most important species commercialized for food in various areas of Asia. In this study, the complete mitochondrial genome of A. schlegelii has been determined. The mitogenome was 16,649 bp in length and contained 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes and 2 non-coding regions. It shared 90.2%, 82.3%, and 82.1% mitogenome sequence with Acanthopagrus latus, Parargyrops edita, and Pagrus major, respectively. PMID:22591205

  10. Intersections between immigration, language, identity, and emotions: a science teacher candidate's journey

    NASA Astrophysics Data System (ADS)

    Rivera Maulucci, Maria S.

    2008-04-01

    This study reports a subset of findings from a larger, ongoing study aimed at exploring interactions between teacher identity, learning, and classroom practices in a social justice teacher education program at a selective liberal arts college in New York. This case-study explores the journey of Elena, as an immigrant, a student, and a pre-service teacher candidate towards becoming a social justice educator. Elena reflects upon her school language experiences as an immigrant youth, her learning in a social justice teacher education program, and her field experiences in an international high school. The analysis spans macro-, meso-, and microlevels to explore the ways globalization, particularly immigration, as well as schooling policies for English language learners interact with aspects of Elena's core identity, particularly in school settings. The findings show some of the ways language and literacy verified and/or denied aspects of Elena's core identity; specific instances where second language proficiency was cast as power and privilege versus disadvantage according to ethnic, language, and class categorizations; and the struggles Elena, and other immigrant youth may face given the focus on English language acquisition and high stakes accountability in schools, at the expense of students' primary language proficiency and affirmation of core identity markers.

  11. [The diagnosis of epilepsy in the interactive mode using computer technology].

    PubMed

    Kaliadin, N I; Kulikova, N P; Lekomtseva, V T; Suntsov, A A; Sheĭnin, A N

    1996-01-01

    The paper describes an EDITA programming subsystem for computer diagnostic technology for epilepsy. The EDITA is based on a classifier, a system of a patient's individual signs. The classifier has been developed in accordance with the epilepsy classification developed by the International Epilepsy Control League (Kyoto, 1982) and involves many-year experience in diagnosing and treating epilepsy in Udmurtia. The crucial principle for a computer to make a diagnosis is not only medical experience, but a formalized system of weight ratios, which is an integral part of the computer classifier. The validity of weight ratios were assessed in a representative taught sample (260 patients with wellknown types of epilepsy). A statistic method based on the Bayes' approach was applied by employing the same taught sample when the classifier and the reliability of computer-aided diagnosis were checked. Computer-aided diagnosis was made in three steps: registrations or selection of a patient, collection of history data and diagnosis, prescription of antiepileptic drugs. According to these three steps, three sections (or program operating modes) were identified. These included a patient's medical card, a classifier, and drugs. PMID:8926848

  12. Fields of Toil: A Migrant Family's Journey.

    ERIC Educational Resources Information Center

    Valle, Isabel

    Journalist Isabel Valle lived and traveled for 1 year with the family of Raul and Maria Elena Martinez, migrant farmworkers who make their permanent home in south Texas. Her reports appeared every Sunday in the Walla Walla Union-Bulletin's award-winning series "Fields of Toil." This book compiles those weekly reports, which reveal the issues that…

  13. ES Review: Selections from 2009 and 2010

    ERIC Educational Resources Information Center

    Smiles, Robin, Ed.

    2010-01-01

    This fourth edition of the "ES Review" brings together, in one setting, some of the best work from 2009-10. It features: (1) Teacher Quality (Teachers at Work: Improving Teacher Quality Through School Design (Elena Silva); Understanding Teachers Contracts (Andrew J. Rotherham); How Teachers Unions Lost the Media (Richard Whitmire and Andrew J.…

  14. 78 FR 26782 - Agency Information Collection Activities; Submission for OMB Review; Comment Request; State...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-08

    .... ACTION: Notice. SUMMARY: The Administration for Community Living (ACL) is announcing that the proposed... information by fax 202.395.5806 or by email to OIRA_submission@omb.eop.gov , Attn: OMB Desk Officer for ACL. FOR FURTHER INFORMATION CONTACT: Elena Fazio at 202-357-3583 or email:...

  15. Breakthrough: Fighting Cancer with Nanoparticles

    ScienceCinema

    Rozhkova, Elena

    2013-04-19

    Argonne nanoscientist Elena Rozhkova is studying ways to enlist nanoparticles to treat brain cancer. This nano-bio technology may eventually provide an alternative form of therapy that targets only cancer cells and does not affect normal living tissue. Read more at http://1.usa.gov/JAXh7Q.

  16. Breakthrough: Fighting Cancer with Nanoparticles

    SciTech Connect

    Rozhkova, Elena

    2012-01-01

    Argonne nanoscientist Elena Rozhkova is studying ways to enlist nanoparticles to treat brain cancer. This nano-bio technology may eventually provide an alternative form of therapy that targets only cancer cells and does not affect normal living tissue. Read more at http://1.usa.gov/JAXh7Q.

  17. Discourse Analysis Today.

    ERIC Educational Resources Information Center

    Scheu, Dagmar, Ed.; Lopez-Maestre, M. D., Ed.

    2003-01-01

    This collection of articles includes: "Introduction: Discourse Analysis Today" (Dagmar Schue and M.D. Lopez-Maestre); "The Metaphorical and Metonymic Understanding of the Trinitarian Dogma" (Antonio Barcelona); "Symmetry as Conceptual Metaphor in Walker's The Color Purple" (Elena Tapia); "And She's Like it's Terrible, Like: Spoken Discourse,…

  18. Far-Away Wisdom: Three Nominees for the 1992 Andersen Prize.

    ERIC Educational Resources Information Center

    Garrett, Jeffrey

    1993-01-01

    Reports on the work of three nominees for the 1992 Andersen medal, awarded to recognize a body of work that has made a lasting contribution to children's literature. Discusses the work of Finnish author Hannu Makela; Argentinian writer, poet, and singer Maria Elena Walsh; and the Iranian author Hooshang Moradi Kermani. (RS)

  19. 75 FR 57743 - Unconventional Resources Technology Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-22

    ... Unconventional Resources Technology Advisory Committee AGENCY: Department of Energy, Office of Fossil Energy... Technology Advisory Committee. The Federal Advisory Committee Act (Pub. L. 92-463, 86 Stat. 770) requires... 20024. FOR FURTHER INFORMATION CONTACT: Elena Melchert, U.S. Department of Energy, Office of Oil...

  20. 75 FR 57743 - Unconventional Resources Technology Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-22

    ... Unconventional Resources Technology Advisory Committee AGENCY: Department of Energy, Office of Fossil Energy... Technology Advisory Committee. The Federal Advisory Committee Act (Pub. L. No. 92-463, 86 Stat. 770) requires... INFORMATION CONTACT: Elena Melchert, U.S. Department of Energy, Office of Oil and Natural Gas, Washington,...

  1. 78 FR 53741 - Unconventional Resources Technology Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-30

    ... Unconventional Resources Technology Advisory Committee AGENCY: Office of Fossil Energy, Department of Energy... Technology Advisory Committee. The Federal Advisory Committee Act (Pub. L. 92-463, 86 Stat. 770) requires...., Room 3G-043, Washington, DC 20585. FOR FURTHER INFORMATION CONTACT: Elena Melchert, U.S. Department...

  2. 48. Detail of top of wall in S room showing ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    48. Detail of top of wall in S room showing strap-iron beam tie-back anchored in wall with severely deteriorated beam in place. - Hacienda Azurarera Santa Elena, Sugar Mill Ruins, 1.44 miles North of PR Route 2 Bridge Over Rio De La Plata, Toa Baja, Toa Baja Municipio, PR

  3. K-12 Implications Seen in Some Cases before High Court

    ERIC Educational Resources Information Center

    Walsh, Mark

    2010-01-01

    Arizona's variation on government vouchers for religious schools and California's prohibition on the sale of violent video games to minors present the top two cases with implications for education in the U.S. Supreme Court term that formally begins Oct. 4. New Justice Elena Kagan brings to the court extensive education policy experience as a…

  4. Enhancing trappable antiproton populations through deceleration and frictional cooling

    SciTech Connect

    Zolotorev, Max; Sessler, Andrew; Penn, Gregory; Wurtele, Jonathan S.; Charman, Andrew E.

    2012-03-20

    CERN currently delivers antiprotons for trapping experiments with the Antiproton Decelerator (AD), which slows the antiprotons down to about 5 MeV.This energy is currently too high for direct trapping, and thick foils are used to slow down the beam to energies which can be trapped.To allow further deceleration to $\\sim 100 \\;\\mbox{keV}$, CERN is initiating the construction of ELENA,consisting of a ring which will combine RF deceleration and electron cooling capabilities. We describe a simple frictionalcooling scheme that can serve to provide significantly improved trapping efficiency, either directly from the AD or first usinga standard deceleration mechanism (induction linac or RFQ). This scheme could be implemented in a short time.The device itself is short in length, uses accessible voltages, and at reasonable cost could serve in the interim beforeELENA becomes operational, or possibly in lieu of ELENA for some experiments. Simple theory and simulations provide a preliminary assessment of theconcept and its strengths and limitations, and highlight important areas for experimental studies, in particular to pin down the level of multiplescattering for low-energy antiprotons. We show that the frictional cooling scheme can provide a similar energy spectrum to that of ELENA,but with higher transverse emittances.

  5. Supreme Court Review

    ERIC Educational Resources Information Center

    Williams, Charles F.; Hawke, Catherine

    2010-01-01

    Of the three branches of government, the Supreme Court usually receives the least national attention. Not so this year. In addition to another changing of the guard with the retirement of Justice Stevens and the nomination of Elena Kagan, the 2009-2010 term generated a great deal of controversy. And in a number of instances, the public's keen…

  6. A Framework for Supporting Postsecondary Learners with Psychiatric Disabilities in Online Environments

    ERIC Educational Resources Information Center

    Grabinger, Scott

    2010-01-01

    Elena has a psychiatric disability: bipolar (manic/depressive) disorder. Daniele suffers from depression. Both are serious cognitive disorders that have significant effects on learning, especially learning online. One of the problems students with psychiatric disabilities encounter is finding support in online environments, especially when 10, 50,…

  7. ES Review: Selections from 2008 & 2009

    ERIC Educational Resources Information Center

    Smiles, Robin, Ed.

    2009-01-01

    This third edition of the "ES Review" brings together, in one setting, some of the best work from 2008-09. It features: (1) K-12 Accountability (Measuring Skills for the 21st Century (Elena Silva); Beyond the Bubble: Technology and the Future of Student Assessment (Bill Tucker); Testing the Limits (Bill Tucker); Changing the Game: The Federal Role…

  8. Platinum Highlight Abstract - November 2013 | Poster

    Cancer.gov

    Characterization and Favorable In Vivo Properties of Heterodimeric Soluble IL-15∙IL-15Rα Cytokine Compared to IL-15 Monomer Elena Chertova, Cristina Bergamaschi, Oleg Chertov, Raymond Sowder, Jenifer Bear, James D. Roser, Rachel K. Beach, Jeffrey D. Lifson, Barbara K. Felber, and George N. PavlakisJ Biol Chem 288(25):18093-18103, 2013

  9. U.S. Elementary and Secondary Schools: Equalizing Opportunity or Replicating the Status Quo?

    ERIC Educational Resources Information Center

    Rouse, Cecilia Elena; Barrow, Lisa

    2006-01-01

    Although education pays off handsomely in the United States, children from low-income families attain less education than children from more advantaged families. In this article, Cecilia Elena Rouse and Lisa Barrow investigate why family background is so strongly linked to education. The authors show that family socioeconomic status affects such…

  10. Developing Intercultural Competence in Practice. Languages for Intercultural Communication and Education.

    ERIC Educational Resources Information Center

    Byram, Michael, Ed.; Nichols, Adam, Ed.; Stevens, David, Ed.

    This collection of papers shows how intercultural competence can be realized in the classroom. The 17 chapters include the following: (1) "The International Partnership Project" (Carol Morgan); (2) "Teaching Intercultural Communicative Competence through Literature" (Eva Burwitz-Melzer); (3) "'Up the Hills of Identity'" (Elena Tarasheva and Leah…

  11. Phytolith analysis of archeological soils: evidence for maize cultivation in formative ecuador.

    PubMed

    Pearsall, D M

    1978-01-13

    Soil samples from the archeological sites of Real Alto and OGCh-20, Santa Elena Peninsula, Ecuador, show the presence of cross-shaped silica bodies identifiable as maize (Zea mays L.) phytoliths by size comparison with known wild grass and maize phytoliths. These results support arguments for the cultivation of maize at 2450 B.C. in coastal Ecuador. PMID:17812949

  12. 76 FR 29257 - Accreditation and Approval of Inspectorate America Corporation, as a Commercial Gauger and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-20

    ... SECURITY U.S. Customs and Border Protection Accreditation and Approval of Inspectorate America Corporation... Homeland Security. ACTION: Notice of accreditation and approval of Inspectorate America Corporation, as a... 151.13, Inspectorate America Corporation, 4717 Santa Elena, Corpus Christi, TX 78405, has...

  13. A survey of scale insects in soil samples from Europe (Hemiptera, Coccomorpha).

    PubMed

    Kaydan, Mehmet Bora; Benedicty, Zsuzsanna Konczné; Kiss, Balázs; Szita, Éva

    2016-01-01

    In the last decades, several expeditions were organized in Europe by the researchers of the Hungarian Natural History Museum to collect snails, aquatic insects and soil animals (mites, springtails, nematodes, and earthworms). In this study, scale insect (Hemiptera: Coccomorpha) specimens extracted from Hungarian Natural History Museum soil samples (2970 samples in total), all of which were collected using soil and litter sampling devices, and extracted by Berlese funnel, were examined. From these samples, 43 scale insect species (Acanthococcidae 4, Coccidae 2, Micrococcidae 1, Ortheziidae 7, Pseudococcidae 21, Putoidae 1 and Rhizoecidae 7) were found in 16 European countries. In addition, a new species belonging to the family Pseudococcidae, Brevennia larvalis Kaydan, sp. n. and a new species of Ortheziidae, Ortheziola editae Szita & Konczné Benedicty, sp. n. are described and illustrated based on the adult female stage. Revised keys to the adult females of Brevennia and Ortheziola are presented. PMID:27081335

  14. A survey of scale insects in soil samples from Europe (Hemiptera, Coccomorpha)

    PubMed Central

    Kaydan, Mehmet Bora; Benedicty, Zsuzsanna Konczné; Kiss, Balázs; Szita, Éva

    2016-01-01

    Abstract In the last decades, several expeditions were organized in Europe by the researchers of the Hungarian Natural History Museum to collect snails, aquatic insects and soil animals (mites, springtails, nematodes, and earthworms). In this study, scale insect (Hemiptera: Coccomorpha) specimens extracted from Hungarian Natural History Museum soil samples (2970 samples in total), all of which were collected using soil and litter sampling devices, and extracted by Berlese funnel, were examined. From these samples, 43 scale insect species (Acanthococcidae 4, Coccidae 2, Micrococcidae 1, Ortheziidae 7, Pseudococcidae 21, Putoidae 1 and Rhizoecidae 7) were found in 16 European countries. In addition, a new species belonging to the family Pseudococcidae, Brevennia larvalis Kaydan, sp. n. and a new species of Ortheziidae, Ortheziola editae Szita & Konczné Benedicty, sp. n. are described and illustrated based on the adult female stage. Revised keys to the adult females of Brevennia and Ortheziola are presented. PMID:27081335

  15. Acoustic concomitants of emotional expression in operatic singing: the case of Lucia in Ardi gli incensi.

    PubMed

    Siegwart, H; Scherer, K R

    1995-09-01

    Two excerpts from the cadenza in Ardi gli incensi from Donizetti's opera Lucia di Lammermoor were acoustically analyzed for five recorded versions of the cadenza by Toti dal Monte, Maria Callas, Renata Scotto, Joan Sutherland, and Edita Gruberova. These acoustic parameters of the singing voices were correlated with preference and emotional expression judgments, based on pairwise comparisons, made by a group of experienced listener-judges. In addition to showing major differences in the voice quality of the five "dive" studied, the acoustic parameters suggested which vocal cues affect listener judgments. Two component scores, based on a factorial-dimensional analysis of the acoustic parameters, predicted 84% of the variance in the preference ratings. PMID:8541968

  16. Status of fish communities in the Rio Grande, Big Bend National Park, Texas - comparison before and after Spring 2003 period of low flow

    USGS Publications Warehouse

    Moring, J. Bruce

    2005-01-01

    During 2003–04 the U.S. Geological Survey, in cooperation with the National Park Service, re-evaluated the status of fish communities in three reaches of the Rio Grande in Big Bend National Park that originally were evaluated when the three reaches were established for study in 1999. The objective was to determine whether there were measurable differences between 1999 and 2003–04 (referred to as 2004) fish community status that likely are attributable to a rare 58-day period of low flow (less than 1 cubic meter per second) in spring 2003 at the Johnson Ranch gaging station on the Rio Grande in Big Bend National Park. The total number of fish species collected at all three sites (Boquillas, Johnson Ranch, and Santa Elena) in 1999 was greater than in 2004. The number of fish species collected at the Boquillas site in 1999 (10) was twice that collected in 2004; the number of species collected at the Johnson Ranch site in 1999 (nine) was almost twice that collected in 2004 (five). In contrast, the numbers at the Santa Elena site were nearly the same, 15 species in 1999, 14 in 2004. Percent community similarity for the Boquillas site is 8.04, for the Johnson Ranch site, 6.65, and for the Santa Elena site, 47.6, which indicates considerably more similarity between the 1999 and 2004 fish communities at the Santa Elena site than for the Boquillas and Johnson Ranch sites. At the Boquillas and Johnson Ranch sites, the fish communities shifted from small minnow (Cyprinidae) dominated in 1999 to largely gar (Lepisosteidae) and catfish (Ictaluridae) dominated in 2004. In contrast, no such shift occurred at the Santa Elena site between 1999 and 2004. Differences in flow conditions between the two downstream sites and the Santa Elena site might account for the dissimilar findings. The findings of the study provide some evidence that the spring 2003 period of low flow affected fish communities, but the findings are not definitive as other factors such as increased salinity

  17. A model for the Holocene extinction of the mammal megafauna in Ecuador

    NASA Astrophysics Data System (ADS)

    Ficcarelli, G.; Coltorti, M.; Moreno-Espinosa, M.; Pieruccini, P. L.; Rook, L.; Torre, D.

    2003-03-01

    This paper presents the results of multidisciplinary research in the Ecuadorian coastal regions, with particular emphasis on the Santa Elena Peninsula. The new evidence, together with previous data gathered on the Ecuadorian cordillera during the last 12 years, allows us to formulate a model that accounts for most of the mammal megafauna extinction at the Pleistocene/Holocene transition. After the illustration of geomorphological and paleontological evidences of the area of the Santa Elena Peninsula (and other sites), and of a summary of the paleoclimatic data, the main results and conclusions of this work are: (1) Late Pleistocene mammal assemblages survived in the Ecuadorian coast until the Early Holocene sea level rise; (2) Prior to the extinction of most of the megafauna elements (mastodons, ground sloths, equids, sabre-tooth felids), the mammal communities at Santa Elena Peninsula comprise elements with differing habitat requirements, attesting conditions of high biological pressure; (3) At the El Cautivo site (Santa Elena Peninsula), we have discovered Holocene sediments containing the first known occurrences in Ecuador of lithic artifacts that are associated with mammal megafauna remains; (4) During the last 10,000 years, the coastal region of Ecuador underwent significant changes in vegetation cover. At the Pleistocene/Holocene transition the climate changed from very arid conditions to humid conditions. Our data indicates that the megafauna definitively abandoned the Cordillera areas around 12,000 yr BP due to t he increasing aridity, and subsequently migrated to coastal areas where ecological conditions still were suitable, Santa Elena Peninsula and mainly Amazonian areas being typical. We conclude that the unusual high faunal concentrations and the change to dense vegetation cover (due to a rapid increase in precipitation in the lower Holocene) at 8000-6000 yr BP, caused the final collapse and extinction of most elements of the mammal megafauna

  18. VizieR Online Data Catalog: Hubble Tarantula Treasury Project (HTTP). III. (Sabbi+, 2016)

    NASA Astrophysics Data System (ADS)

    Sabbi, E.; Lennon, D. J.; Anderson, J.; Cignoni, M.; van der Marel, R. P.; Zaritsky, D.; de Marchi, G.; Panagia, N.; Gouliermis, D. A.; Grebel, E. K.; Gallagher, J. S., III; Smith, L. J.; Sana, H.; Aloisi, A.; Tosi, M.; Evans, C. J.; Arab, H.; Boyer, M.; de Mink, S. E.; Gordon, K.; Koekemoer, A. M.; Larsen, S. S.; Ryon, J. E.; Zeidler, P.

    2016-02-01

    Hubble Tarantula Treasury Project (HTTP; HST 12939, PI Elena Sabbi + HST 12499, PI Danny Lennon) was awarded 60 orbits of HST time in cycle 20 to survey the entire Tarantula Nebula (30 Doradus), using both the UVIS and the IR channels of the Wide Field Camera 3 (WFC3), and, in parallel, the Wide Field Channel (WFC) of the Advanced Camera for Surveys (ACS). See log of the observations (from 2011 Oct 03 to 2013 Sep 17) in table 1. (2 data files).

  19. An unusually rich scuttle fly fauna (Diptera, Phoridae) from north of the Arctic Circle in the Kola Peninsula, N. W. Russia.

    PubMed

    Disney, R H L

    2013-01-01

    64 species of Phoridae, in 6 genera, are reported from the Kola Peninsula, north of the Arctic Circle. The new species Megaselia elenae and Megaselia kozlovi are described. 33 species of Megaselia, only known from females, are given code numbers. Keys to the species of all the females of Megaselia and Phora are provided; and also a key to the males European Megaselia species with a notopleural cleft. PMID:24194655

  20. An unusually rich scuttle fly fauna (Diptera, Phoridae) from north of the Arctic Circle in the Kola Peninsula, N. W. Russia

    PubMed Central

    Disney, R. H. L.

    2013-01-01

    Abstract 64 species of Phoridae, in 6 genera, are reported from the Kola Peninsula, north of the Arctic Circle. The new species Megaselia elenae and Megaselia kozlovi are described. 33 species of Megaselia, only known from females, are given code numbers. Keys to the species of all the females of Megaselia and Phora are provided; and also a key to the males European Megaselia species with a notopleural cleft. PMID:24194655

  1. The Road to Remarkable: Directed by Vision, Driven by Strength--2010 Five-Year Report of the Policy and Planning Board

    ERIC Educational Resources Information Center

    American Psychologist, 2011

    2011-01-01

    The 2010 Policy and Planning Board of the American Psychological Association (APA) was chaired by Elena J. Eisman, EdD. Other members of the board included Gwyneth M. Boodoo, PhD; G. Rita Dudley-Grant, PhD; Beverly Greene, PhD; Christopher W. Loftis, PhD; Michael J. Murphy, PhD; Paul D. Nelson, PhD; Kurt Salzinger, PhD; and Michael Wertheimer,…

  2. An experiment in hurricane track prediction using parallel computing methods

    NASA Technical Reports Server (NTRS)

    Song, Chang G.; Jwo, Jung-Sing; Lakshmivarahan, S.; Dhall, S. K.; Lewis, John M.; Velden, Christopher S.

    1994-01-01

    The barotropic model is used to explore the advantages of parallel processing in deterministic forecasting. We apply this model to the track forecasting of hurricane Elena (1985). In this particular application, solutions to systems of elliptic equations are the essence of the computational mechanics. One set of equations is associated with the decomposition of the wind into irrotational and nondivergent components - this determines the initial nondivergent state. Another set is associated with recovery of the streamfunction from the forecasted vorticity. We demonstrate that direct parallel methods based on accelerated block cyclic reduction (BCR) significantly reduce the computational time required to solve the elliptic equations germane to this decomposition and forecast problem. A 72-h track prediction was made using incremental time steps of 16 min on a network of 3000 grid points nominally separated by 100 km. The prediction took 30 sec on the 8-processor Alliant FX/8 computer. This was a speed-up of 3.7 when compared to the one-processor version. The 72-h prediction of Elena's track was made as the storm moved toward Florida's west coast. Approximately 200 km west of Tampa Bay, Elena executed a dramatic recurvature that ultimately changed its course toward the northwest. Although the barotropic track forecast was unable to capture the hurricane's tight cycloidal looping maneuver, the subsequent northwesterly movement was accurately forecasted as was the location and timing of landfall near Mobile Bay.

  3. Key concepts from Gibbs that empowered Van der Waals, Korteweg and Kamerlingh Onnes

    NASA Astrophysics Data System (ADS)

    Levelt Sengers, Johanna

    2003-03-01

    Gibbs founded his theory of the equilibrium of heterogeneous systems (1873-1878) on the following pillars: thermodynamic stability; phase equilibrium from tangent planes rolling across thermodynamic energy surfaces; the chemical potential; degrees of freedom; the phase rule; and criticality. These concepts inspired major interdisciplinary research on mixture phase behavior in the Netherlands.(J. Levelt Sengers, How Fluids Unmix, Edita, Amsterdam (2002)) Mathematician Korteweg and physicist Van der Waals, at the University of Amsterdam, used Gibbs's geometric approach to produce the first formulation of the Helmholtz energy of binary fluid mixtures in 1891. Physicist Kamerlingh Onnes and his students at the University of Leiden studied binary mixtures experimentally, confirming Van der Waals's model, and built many 3-D models of thermodynamic surfaces. Misconceptions about criticality abounded in Europe from 1880 to 1908, provoking attacks by Kamerlingh Onnes. Between 1907 and 1913, Amsterdam chemist Bakhuis Roozeboom and his school produced an influential book series on binary and ternary, fluid and solid phase equilibria, including reacting systems.

  4. Population parameters and dynamic pool models of commercial fishes in the Beibu Gulf, northern South China Sea

    NASA Astrophysics Data System (ADS)

    Wang, Xuehui; Qiu, Yongsong; Du, Feiyan; Lin, Zhaojin; Sun, Dianrong; Huang, Shuolin

    2012-01-01

    Length-frequency data of eight commercial fish species in the Beibu Gulf (Golf of Tonkin), northern South China Sea, were collected during 2006-2007. Length-weight relationships and growth and mortality parameters were analyzed using FiSAT II software. Five species had isometric growth, two species had negative allometric growth, and one species had positive allometric growth. Overall, the exploitation rates of the eight species were lower in 2006-2007 than in 1997-1999: for four species ( Saurida tumbil, Saurida undosquamis, Argyrosomus macrocephalus, and Nemipterus virgatus) it was lower in 2006-2007 than in 1997-1999, for two species ( Parargyrops edita and Trichiurus haumela) it remained the same, and for the other two species ( Trachurus japonicus and Decapterus maruadsi) it was higher in 2006-2007 than in 1997-1999. The exploitation rates might have declined because of the decline in fishing intensity caused by high crude oil prices. The optimum exploitation rate, estimated using Beverton-Holt dynamic pool models, indicated that although fishes in the Beibu Gulf could sustain high exploitation rates, the under-size fishes at first capture resulted in low yields. To increase the yield per recruitment, it is more effective to increase the size at first capture than to control fishing effort.

  5. Petroleum geology of Pacific margin of Central America and northern South America, from Guatemala to Ecuador

    SciTech Connect

    Scrutton, M.E.; Escalante, G.F.

    1986-07-01

    Exploration for hydrocarbons along the Pacific margin of Central America and northern South America has been limited and spasmodic. Less than 100 exploration wells have been drilled, with nearly 50 of these being in the Santa Elena, Progreso, and Guayas basins in Ecuador. Shows have been reported in some wells, and a few oil seeps are known. The only commercial production established to date has been from the Santa Elena Peninsula in Ecuador in the extreme south of the study area. Understanding of the geology in this part of the continental margin is incomplete at best. This paper reviews present-day knowledge in an attempt to define the sedimentary basins better, to characterize their structure and stratigraphy, and to assess their petroleum prospects. The area of continental margin reviewed is to the north, located northwest of the trench system where oceanic crust of the Cocos plate subducts under the Caribbean plate, and to the south, where the northern part of the Nazca plate collides with the South American plate. This plate tectonic setting forms the framework on which local structural and sedimentary events have created a series of relatively small trench-slope and forearc basins in what is now the coastal plain and adjacent offshore area of Central and South America, south or west of a line of mountain ranges with active volcanism. Sedimentary fill is generally of Tertiary age. The basins and subbasins recognized and described include: in Ecuador - Guayas, Santa Elena, Progreso, Valdivia, Bajo Grande, Manta, Muisne-Esmeraldas, and Borbon; in Colombia - Choco-Pacific; in Panama - Gulf of Panama basin complex (Santiago, Tonosi, Sambu), and Burica-Chiriqui; in Costa Rica - Terraba and Coronado/Tempisque; in Nicaragua - San Juan del Sur; and in the Honduras, El Salvador, and Guatemala - the Pacific coastal basin.

  6. The Progreso Basin Province of Northwestern Peru and Southwestern Ecuador: Neogene and Cretaceous-Paleogene Total Petroleum Systems

    USGS Publications Warehouse

    Higley, Debra K.

    2004-01-01

    The Progreso Basin province (6083) in northwestern Peru and southwestern Ecuador consists of the Paleogene Santa Elena block and Peru Bank, and the Neogene Tumbes-Progreso subbasin. The Santa Elena block and Peru Bank are part of the Cretaceous-Paleogene Total Petroleum System (TPS)(608302), which contains the Cretaceous-Paleogene Santa Elena Block Assessment Unit (60830201). The Tumbes- Progreso subbasin includes the Neogene TPS (608301) and associated Neogene Pull-Apart Basin Assessment Unit (60830101). The complex tectonic history of the Progreso Basin province influenced depositional and erosional patterns across the region, and also the location, timing, and types of seals, traps, possible source and reservoir rocks, and hydrocarbon generation and migration. Marine shales that are interbedded with and overlie reservoir intervals are the probable hydrocarbon source rocks. Timing of hydrocarbon generation and migration was probably Miocene and younger, following creation of the Tumbes-Progreso subbasin by movement along the Dolores-Guayaquil megashear. More than 220 million barrels of oil (MMBO) and 255 billion cubic feet of gas (BCFG) have been produced from the Progreso Basin province. The means of estimated recoverable oil, gas, and natural gas liquids (NGL) resources from undiscovered fields in the province are 237 MMBO, 695 BCFG, and 32 MMB NGL, respectively. The means of estimated recoverable oil, gas, and NGL resources from undiscovered onshore fields are 45 MMBO, 113 BCFG, and 5 MMBNGL, and from undiscovered offshore fields are 192 BBO, 582 BCFG, and 27 MMBNGL. These are USGS grown undiscovered resources that were determined by using a minimum field size of 1 million barrels of oil equivalent.

  7. Extremely low prevalence of Batrachochytrium dendrobatidis in frog populations from neotropical dry forest of Costa Rica supports the existence of a climatic refuge from disease.

    PubMed

    Zumbado-Ulate, Héctor; Bolaños, Federico; Gutiérrez-Espeleta, Gustavo; Puschendorf, Robert

    2014-12-01

    Population declines and extinctions of numerous species of amphibians, especially stream-breeding frogs, have been linked to the emerging infectious disease chytridiomycosis, caused by the chytrid fungus, Batrachochytrium dendrobatidis. In Central America, most of the 34 species of the Craugastor punctariolus species group have disappeared in recent years in high- and low-elevation rainforests. Distribution models for B. dendrobatidis and the continuous presence of the extirpated stream-dwelling species, Craugastor ranoides, in the driest site of Costa Rica (Santa Elena Peninsula), suggest that environmental conditions might restrict the growth and development of B. dendrobatidis, existing as a refuge from chytridiomycosis-driven extinction. We conducted field surveys to detect and quantify the pathogen using Real-time PCR in samples from 15 species of frogs in two locations of tropical dry forest. In Santa Elena Peninsula, we swabbed 310 frogs, and only one sample of the species, C. ranoides, tested positive for B. dendrobatidis (prevalence <0.1%). In Santa Rosa Station, we swabbed 100 frogs, and nine samples from three species tested positive (prevalence = 9.0%). We failed to detect signs of chytridiomycosis in any of the 410 sampled frogs, and low quantities of genetic equivalents (between 0 and 1073) were obtained from the ten positive samples. The difference in the prevalence between locations might be due not only to the hotter and drier conditions of Santa Elena Peninsula but also to the different compositions of species in both locations. Our results suggest that B. dendrobatidis is at the edge of its distribution in these dry and hot environments of tropical dry forest. This study supports the existence of climatic refuges from chytridiomycosis and highlights the importance of tropical dry forest conservation for amphibians in the face of epidemic disease. PMID:25212725

  8. Ecuador rural electrification. Project impact evaluation report 21

    SciTech Connect

    Kessler, J.L.; Ballantyne, J.; Maushammer, R.; Simancas, N.R.

    1981-01-01

    The direct and indirect benefits of rural electrification in Ecuador warrant A.I.D.'s continued sponsorship of such programs. This assessment of A.I.D.'s 1964-75 sponsorship of four electrification projects in Ecuador concludes that, although implemented along with other development projects such as road construction, the program was a key factor in upgrading the towns of Santa Elena, Santo Domingo de los Colorados, Daule, and Ambato into regional market and service centers. The main benefits of this program, which was not originally designed to benefit the poor, were job creation, access to agricultural product processing facilities, and increased opportunities for small commercial enterprises.

  9. STS-84 Crew Portrait

    NASA Technical Reports Server (NTRS)

    1997-01-01

    The crew assigned to the STS-84 mission included (seated front left to right) Jerry M Linenger, mission specialist; Charles J. Precourt, commander; and C. Michael Foale, mission specialist. On the back row (left to right) are Jean-Francois Clervoy (ESA), mission specialist; Eileen M. Collins, pilot; Edward T. Lu, mission specialist; Elena V. Kondakova (RSA), mission specialist; and Carlos I. Noriega, mission specialist. Launched aboard the Space Shuttle Atlantis on May 15, 1997 at 4:07:48 am (EDT), the STS-84 mission served as the sixth U.S. Space Shuttle-Russian Space Station Mir docking.

  10. Commission 20: Position and Motion of Minor Planets, Comets and Satellites

    NASA Astrophysics Data System (ADS)

    Valsecchi, Giovanni B.; Fernandez, Julio; Bowell, Edward L. G.; Arlot, Jean-Eudes; Bowell, Edward L. G.; Chernetenko, Yulia A.; Chesley, Steven R.; Lazzaro, Daniela; Lemaitre, Anne; Marsden, Brian G.; Muinonen, Karri; Rickman, Hans; Tholen, David J.; Yoshikawa, Makoto

    2007-12-01

    A total of 16 among the new IAU members have asked to join Commission 20; they are: Jerome Berthier, Nicholas J. Cooper, Marco Delbò, Romina P. Di Sisto, Michael W. Evans, Tetsuharu Fuse, Ludmila Hudkova, Yurij N. Krugly, Elena N. Polyakhova, Zhanna Pozhalova, Alessandro Rossi, Qi Rui, Jonathan D. Shanklin, Slawomira E. Szutowicz, Gino Tuccari and Hong-Suh Yim. Moreover, two requests to join the Commission have been received by astronomers that are already IAU members: Peter De Cat and Ricardo A. Gil-Hutton.

  11. New Approach for Producing and Purifying IL-15 Heterodimers That Have Potent Immune Effect | Poster

    Cancer.gov

    By Nancy Parrish, Staff Writer Cytokines are proteins that play a crucial role in the human immune system by delivering messages that trigger the activation of immune cells to fight off attacks from viruses or other invaders. Cristina Bergamaschi, Ph.D., NCI Center for Cancer Research, has been studying the mechanism of expression and function of a cytokine known as interleukin-15 (IL-15) for the last five years, in collaboration with Elena Chertova, Ph.D., and other researchers in the Retroviral Protein Chemistry Core (RPCC) of the AIDS and Cancer Virus Program (ACVP), Frederick National Laboratory for Cancer Research.

  12. Timeline: iPSCs-The First Decade.

    PubMed

    Chari, Sheila; Mao, Steve

    2016-02-01

    Research into induced pluripotent stem cells (iPSCs) has expanded at a remarkable pace in the decade since Shinya Yamanaka and Kazutoshi Takahashi first reported their groundbreaking discovery in 2006. This Timeline highlights the key events in the development of this field, including basic insights into the production of iPSCs and how they have been applied to improve our understanding and treatment of human disease. To view this Timeline, open or download the PDF. You can also listen to the associated interview with Debbie Sweet, Editor of Cell Stem Cell, and Elena Porro, Editor of Cell. PAPERCLIP. PMID:26849306

  13. Classification of Murine Pulmonary Tumors —

    Cancer.gov

    This WEB site contains a digital atlas of virtual histological slides with representative mouse and human pulmonary proliferative lesions. It complements the paper "Classification of Proliferative Pulmonary Lesions of the Mouse: Recommendations of the Mouse Models of Human Cancers Consortium" by Alexander Yu. Nikitin, Ana Alcaraz, Miriam R. Anver, Roderick T. Bronson, Robert D. Cardiff, Darlene Dixon, Armando E. Fraire, Edward W. Gabrielson, William T. Gunning, Diana C. Haines, Matthew H. Kaufman, R. Ilona Linnoila, Robert R. Maronpot, Alan S. Rabson, Robert L. Reddick, Sabine Rehm, Nora Rozengurt, Hildegard M. Schuller, Elena N. Shmidt, William D. Travis, Jerrold M. Ward and Tyler Jacks published in Cancer Research 64: 2307-2316, 2004

  14. Adventures in cosmology

    NASA Astrophysics Data System (ADS)

    Goodstein, David

    1. Introduction -- 2. Galaxy formation: from start to finish / Andrew Benson -- 3. The reionization of cosmic hydrogen by the first galaxies / Abraham Loeb -- 4. Clusters of galaxies / Elena Pierpaoli -- 5. Reionizing the universe with the first sources of light / Volker Bromm -- 6. Mapping the cosmic dawn / Steven Furlanetto -- 7. Neutrino masses from cosmology / Ofer Lahav and Shaun Thomas -- 8. Measuring the expansion rate of the universe / Laura Ferrarese -- 9. Particles as dark matter / Dan Hooper -- 10. Detection of WIMP dark matter / Sunil Golwala and Dan McKinsey -- 11. The accelerating universe / Dragan Huterer -- 12. Frontiers of dark energy / Eric V. Linder -- 13. The first supermassive black holes in the universe / Xiaohui Fan.

  15. PREFACE: Workshop on Oxide Materials 2014: Novel Multifunctional Properties

    NASA Astrophysics Data System (ADS)

    Gómez, M. E.; Lopera, W.

    2015-07-01

    The 2014 Workshop on Oxide Materials: Novel Multifunctional Properties was held in Cali, Colombia, from September 15 to September 19 on the campus of Universidad del Valle. It was a great privilege to have had this workshop in Cali after the first workshop on oxide materials commemorating the first centennial of the discovery of the superconductivity in 2011. The meeting gathered an audience of 80 participants, 10 invited speakers with two or three plenary talks each, 20 short oral contributions, two poster sessions with 20 presentations each. This proceedings volume contains papers reported at the conference. The Proceedings of the 2014 Workshop on Oxide Materials: Novel Multifunctional Properties were edited by Maria Elena Gomez and Wilson Lopera with the assistance of Carlos William Sanchez and Albert Ortiz as copy editor. We are grateful for the financial support from COLCIENCIAS through research project COLCIENCIAS-UNIVALLE contract 002/2013; Universidad de Valle through Professor Ivan Ramos, Rector; the Faculty of Science with Professor Jaime Cantera, Dean; the Center of Excellence on Novel Materials with Professor Pedro Prieto, Director; ICETEX, and INTECO Ltda. Further details about the conference, including details of the invited speakers and plenary sessions are available in the PDF. Maria Elena Gómez, Editor Wilson Lopera, Editor

  16. Trace element fluxes and natural potential risks from 210Pb-dated sediment cores in lacustrine environments at the Central Mexican Plateau.

    PubMed

    Ontiveros-Cuadras, J F; Ruiz-Fernández, A C; Sanchez-Cabeza, J A; Pérez-Bernal, L H; Sericano, J L; Preda, M; Wee Kwong, L Liong; Páez-Osuna, F

    2014-01-15

    The accumulation, enrichment and provenance of selected trace metals (Ag, As, Cd, Cr, Cu, Hg, Ni, Pb, V and Zn) were studied in sediment cores collected from three lakes located in the Central Mexican Plateau, selected on the basis of their contrasting degree of urbanization: Santa Elena Lake, in a rural and remote area; El Tule Lake, in a rural and slightly urbanized area; and Chapala Lake, in a highly urbanized area. Grain size, magnetic susceptibility and sedimentary constituents such as organic carbon, calcium carbonate, as well as major (Al, Fe, Mn) and minor (Ca, Li, Rb, Sr, Th) elements were analyzed to explain the concentration trends of trace metals. Factor analysis (FA) was used to assess the provenance of the trace elements. The highest metal enrichment factor (EF) above natural concentration levels was found at Chapala Lake for Ag (EF = 3.9), although other trace element EF in all lakes was <2.0, indicating slight contamination. However, the concentration levels of Cr and Ni in all lakes, Hg and Zn in Chapala Lake, Cu in El Tule Lake and As in Santa Elena Lake were above international benchmarks for which adverse effects are expected to occur frequently, even for those metals only slightly enriched (e.g. As, Cr). Through FA, the terrigenous contribution was identified as the most important source of trace metals to the three lakes, most likely related to deforestation and erosion of the surrounding areas, followed by atmospheric transport of volcanic ashes, rather than to direct sources. PMID:24061059

  17. Possibility of deriving the Hermean surface composition through low energy neutral atom detection

    NASA Astrophysics Data System (ADS)

    Milillo, A.; Orsini, S.; Massetti, S.; Mura, A.; de Angelis, E.; Lammer, H.; Wurz, P.; di Lellis, A. M.

    2003-04-01

    The release processes induced by ion sputtering and/or micrometeoroids impacts induces erosion of the Mercury surface. The sputtered neutrals exhibit spectra peaked at low energies (few eV). Nevertheless, a high-energy neutral signal also emerges, due to these release processes. In principle, the directional neutral signal can be detected, providing information on the local surface composition. In this study, we simulate the neutral signal due to ion sputtering below the cusp regions, assuming a highly anisotropic surface composition. The NPA SERENA / ELENA instrument proposed on board the ESA mission BepiColombo is a nadir-pointing 1-D sensor, able to detect neutral atoms, form tens of eV to about 5 keV with a capability of resolving the major species. The ELENA field-of-view (FOV) is ~ 60 degrees, with the FOV plane perpendicular to the MPO orbital plane. Here, we speculate on the possibility of discriminating composition anisotropies by detecting the high-energy portion of the sputtered signal.

  18. The geomorphology of the Chandeleur Island Wetlands

    SciTech Connect

    Debusschere, K.; Penland, S.; Westphal, K. ); Handley, L. ); Michot, T. ); Reed, D.; Seal, R.

    1990-09-01

    The Chandeleur Islands represent the largest and oldest transgressive barrier island arc in the northern Gulf of Mexico. Generated by the transgressive submergence of the St. Bernard delta complex, the Chandeleur Islands form the protective geologic framework for one of the richest areas of salt marsh and seagrass flats in Louisiana. The Chandeleur barrier island arc is 60 km long and consists of five individual islands backed by a linear, multiple bar system enclosing a shallow basin floored by extensive seagrass flats. The northern part of the Chandeleur chain is the highest in relief, elevation, width, and habitat diversity. Nonstorm morphology is predominantly a combination of continuous dunes and dune terraces. Numerous washover channels and large washover fans extend into the backbarrier environment. Further south, the island width decreases and washover flats and terraces dominate the shoreline morphology In the southernmost section, the island arc is fragmented into a series of small islands and shoals separated by tidal inlets. Between 1984 and 1989, aerial videotape, aerial photographic, and bathymetric surveys were used to map and monitor the geomorphic changes occurring along the shoreline and in backbarrier areas. The aerial videotape mapping surveys focused on the impacts of hurricanes Danny, Elena, and Juan on the geomorphology of the islands. Videotape imagery was acquired in July 1984 and in July (prestorm), August (post-Danny), September (post-Elena), and November (post-Juan) 1985. A coastal geomorphic classification was developed to map the spatial and temporal landscape changes between surveys.

  19. Physics Climate as Experienced by LGBT+ Physicists

    NASA Astrophysics Data System (ADS)

    Long, Elena

    2012-02-01

    In 2009, Elena Long created the LGBT+ Physicists website (http://lgbtphysicists.x10hosting.com) as a warehouse for resources useful for sexual and gender minorities working in physics. This resource has grown to include networking resources, lists of LGBT-friendly universities and localities, recommendations for enacting positive change in physics communities, and out-reach to other STEM-oriented LGBT organizations. This has been possible in large part by the dynamic community of LGBT+ physicists and allies looking to make physics more welcoming towards our community. In 2011, Elena used hir position as Member at Large on the executive committee of the Forum of Graduate Student Affairs (FGSA) to conduct a climate survey that included, among other things, the first serious look at LGBT+ demographics in physics. The survey focused particularly on issues of language heard and harassment experienced by physicists and was broken down into categories based on race, physical and mental ability, gender, and sexuality. Furthermore, it examined the outcomes of experienced harassment and the reasons for when harassment was not reported. Due to the nature of the study, overlapping demographics, especially ``multiple minorities,'' were also explored. This talk will give a brief history of the LGBT+ Physicists resource as well as an overview of the FGSA study.

  20. Mesohabitats, fish assemblage composition, and mesohabitat use of the Rio Grande silvery minnow over a range of seasonal flow regimes in the Rio Grande/Rio Bravo del Norte, in and near Big Bend National Park, Texas, 2010-11

    USGS Publications Warehouse

    Moring, J. Bruce; Braun, Christopher L.; Pearson, Daniel K.

    2014-01-01

    In 2010–11, the U.S. Geological Survey (USGS), in cooperation with the U.S. Fish and Wildlife Service, evaluated the physical characteristics and fish assemblage composition of mapped river mesohabitats at four sites on the Rio Grande/Rio Bravo del Norte (hereinafter Rio Grande) in and near Big Bend National Park, Texas. The four sites used for the river habitat study were colocated with sites where the U.S. Fish and Wildlife Service has implemented an experimental reintroduction of the Rio Grande silvery minnow (Hybognathus amarus), a federally listed endangered species, into part of the historical range of this species. The four sites from upstream to downstream are USGS station 08374340 Rio Grande at Contrabando Canyon near Lajitas, Tex. (hereinafter the Contrabando site), USGS station 290956103363600 Rio Grande at Santa Elena Canyon, Big Bend National Park, Tex. (hereinafter the Santa Elena site), USGS station 291046102573900 Rio Grande near Ranger Station at Rio Grande Village, Tex. (hereinafter the Rio Grande Village site), and USGS station 292354102491100 Rio Grande above Stillwell Crossing near Big Bend National Park, Tex. (hereinafter the Stillwell Crossing site). In-channel river habitat was mapped at the mesohabitat scale over a range of seasonal streamflows. A late summer (August–September 2010) high-flow regime, an early spring (April–May 2010) intermediate flow regime, and a late spring (May 2011) low-flow regime were the seasonal flows used in the study. River habitat was mapped in the field by using a geographic information system and a Global Positioning System unit to characterize the sites at the mesohabitat scale. Physical characteristics of a subset of mesohabitats in a reach of the Rio Grande at each site were measured during each flow regime and included depth, velocity, type and size of the substrate, and percent embeddedness. Selected water-quality properties (dissolved oxygen, pH, specific conductance, and temperature) of a subset of

  1. Thermal and impact histories of reheated group IVA, IVB, and ungrouped iron meteorites and their parent asteroids

    NASA Astrophysics Data System (ADS)

    Yang, J.; Goldstein, J. I.; Scott, E. R. D.; Michael, J. R.; Kotula, P. G.; Pham, T.; McCoy, T. J.

    2011-09-01

    Abstract- The microstructures of six reheated iron meteorites—two IVA irons, Maria Elena (1935), Fuzzy Creek; one IVB iron, Ternera; and three ungrouped irons, Hammond, Babb’s Mill (Blake’s Iron), and Babb’s Mill (Troost’s Iron)—were characterized using scanning and transmission electron microscopy, electron-probe microanalysis, and electron backscatter diffraction techniques to determine their thermal and shock history and that of their parent asteroids. Maria Elena and Hammond were heated below approximately 700-750 °C, so that kamacite was recrystallized and taenite was exsolved in kamacite and was spheroidized in plessite. Both meteorites retained a record of the original Widmanstätten pattern. The other four, which show no trace of their original microstructure, were heated above 600-700 °C and recrystallized to form 10-20 μm wide homogeneous taenite grains. On cooling, kamacite formed on taenite grain boundaries with their close-packed planes aligned. Formation of homogeneous 20 μm wide taenite grains with diverse orientations would have required as long as approximately 800 yr at 600 °C or approximately 1 h at 1300 °C. All six irons contain approximately 5-10 μm wide taenite grains with internal microprecipitates of kamacite and nanometer-scale M-shaped Ni profiles that reach approximately 40% Ni indicating cooling over 100-10,000 yr. Un-decomposed high-Ni martensite (α2) in taenite—the first occurrence in irons—appears to be a characteristic of strongly reheated irons. From our studies and published work, we identified four progressive stages of shock and reheating in IVA irons using these criteria: cloudy taenite, M-shaped Ni profiles in taenite, Neumann twin lamellae, martensite, shock-hatched kamacite, recrystallization, microprecipitates of taenite, and shock-melted troilite. Maria Elena and Fuzzy Creek represent stages 3 and 4, respectively. Although not all reheated irons contain evidence for shock, it was probably the main

  2. Secondary recovery development in Ecuador

    SciTech Connect

    Arteaga, L.; Endara, J.; Alduja, F.

    1981-03-01

    The oil activity in Ecuador goes back to 1920 when the oil-bearing structures were discovered in the Peninsula of Santa Elena in the Ecuatorian coast. Since that time 2,700 oil wells have been drilled; at the present time, only 650 wells are still producing. Oil production has been decreasing in spite of artificial producing systems (sucker rod pumping, and gas lift). During the period of 1966 to 1969 a total of 8 pilot projects was performed to evaluate the possibility of using secondary recovery methods (waterflooding) in 3 different oil-bearing formations from 5 areas, and utilizing different injection patterns. The results from numerical simulation and pilot projects showed the convenience and easibility of the implmentation of secondary recovery systems (waterflooding) in the Shushufindi-Aguarico field. A detailed description is presented of the development of the secondary recovery methods in Ecuador - antecedents, pilot projects, results, etc.

  3. Easy-Going On-Spectrometer Optimisation of Phase Modulated Homonuclear Decoupling Sequences in Solid-State NMR

    NASA Astrophysics Data System (ADS)

    Grimminck, Dennis L. A. G.; Vasa, Suresh K.; Meerts, W. Leo; Kentgens, P. M.

    2011-06-01

    A global optimisation scheme for phase modulated proton homonuclear decoupling sequences in solid-state NMR is presented. Phase modulations, parameterised by DUMBO Fourier coefficients, were optimized using a Covariance Matrix Adaptation Evolution Strategies algorithm. Our method, denoted EASY-GOING homonuclear decoupling, starts with featureless spectra and optimises proton-proton decoupling, during either proton or carbon signal detection. On the one hand, our solutions closely resemble (e)DUMBO for moderate sample spinning frequencies and medium radio-frequency (rf) field strengths. On the other hand, the EASY-GOING approach resulted in a superior solution, achieving significantly better resolved proton spectra at very high 680 kHz rf field strength. N. Hansen, and A. Ostermeier. Evol. Comput. 9 (2001) 159-195 B. Elena, G. de Paepe, L. Emsley. Chem. Phys. Lett. 398 (2004) 532-538

  4. Potential Vorticity Analysis of Tropical Cyclone Intensification.

    NASA Astrophysics Data System (ADS)

    Molinari, John; Skubis, Steven; Vollaro, David; Alsheimer, Frank; Willoughby, Hugh E.

    1998-08-01

    The interaction of marginal Tropical Storm Danny (1985) with an upper-tropospheric positive potential vorticity anomaly was examined. The intensification mechanism proposed earlier for mature Hurricane Elena appears to be valid for Danny as well, despite significant differences in the synoptic-scale environment and in the stage of the tropical cyclone prior to the interaction. Both storms experienced rapid pressure falls as a relatively small-scale positive upper potential vorticity anomaly began to superpose with the low-level tropical cyclone center.The interaction is described in terms of a complex interplay between vertical wind shear, diabatic heating, and mutual advection among vortices at and below the level of the outflow anticyclone. Despite this complexity, the superposition principle appears to be conceptually useful to describe the intensification of tropical cyclones during such interactions.

  5. Case study of a magnetic system for low-energy machines

    NASA Astrophysics Data System (ADS)

    Schoerling, Daniel

    2016-08-01

    The extra low-energy antiproton ring (ELENA) is a CERN particle decelerator with the purpose to deliver antiprotons at lowest energies aiming to enhance the study of antimatter. The hexagonal shaped ring with a circumference of about 30 m will decelerate antiprotons from momenta of 100 to 13.7 MeV /c . In this paper, the design approach for a magnet system for such a machine is presented. Due to the extra-low beam rigidity, the design of the magnet system is especially challenging because even small fields, arising for example from residual magnetization and hysteresis, have a major impact on beam dynamics. In total, seven prototype magnets of three different magnet types have been built and tested. This paper outlines challenges, describes solutions for the design of the magnet system and discusses the results of the prototypes.

  6. Past, present and future low energy antiproton facilities at CERN

    NASA Astrophysics Data System (ADS)

    Bartmann, W.; Belochitskii, P.; Breuker, H.; Butin, F.; Carli, C.; Eriksson, T.; Maury, S.; Oelert, W.; Pasinelli, S.; Tranquille, G.

    2014-05-01

    Low energy antiprotons are available for physics experiments at CERN since the 1980s and have been used by a large variety of experiments. The Low Energy Antiproton Ring LEAR has been constructed as a complementary use of antiprotons available at that time for high energy physics and delivered beam to experiments mainly using slow extraction. After completion of LEAR exploitation, the Antiproton Decelerator (AD) was constructed (adaptation of the existing Antiproton Collector, AC) to allow for a simpler low energy antiproton scheme (only one accelerator operated with Antiprotons) with fast extraction well suited for trap experiments. The Extra Low ENergy Antiproton ring ELENA is a small synchrotron presently constructed to further decelerate antiprotons from the AD in a controlled manner, and to reduce emittances with the help of an electron cooler to improve the capture efficiencies of existing experiments and allow for additional ones.

  7. Diverse roles of ERECTA family genes in plant development.

    PubMed

    Shpak, Elena D

    2013-12-01

    Multiple receptor-like kinases (RLKs) enable intercellular communication that coordinates growth and development of plant tissues. ERECTA family receptors (ERfs) are an ancient family of leucine-rich repeat RLKs that in Arabidopsis consists of three genes: ERECTA, ERL1, and ERL2. ERfs sense secreted cysteine-rich peptides from the EPF/EPFL family and transmit the signal through a MAP kinase cascade. This review discusses the functions of ERfs in stomata development, in regulation of longitudinal growth of aboveground organs, during reproductive development, and in the shoot apical meristem. In addition the role of ERECTA in plant responses to biotic and abiotic factors is examined. Elena D. Shpak (Corresponding author). PMID:24016315

  8. Recollections of a translator (Russian title: Vstrecha v verhah ili vospominania perevodchika)

    NASA Astrophysics Data System (ADS)

    Gaina, Alex

    The article includes recollections of the author-translator from few meetings in Moscow during 70-th years of the XX-th century. The recollections includes a visit to Moscow of a Romanian delegation of trade-unions, a visit of Nicolae Ceausescu and Elena Ceausescu to Moscow in november 1977 in view of the 60-th years of the Revolution of October celebration. A visit by Nicu Ceausescu, physicist and the leader of the Union of Communist Youth of Romania, to Central Comitee of the All Union Communist Youth Organization of the USSR (Komsomol) in Moscow during a transit fly to Beijing (China) is reported also. The recollections reffers also the following persons: Andrey Gromyko- minister of the foreign office of the USSR, Geidar Aliev - 1-st secretary of the Central Commitee of the Azerbaijan S.S.R. Communist party, Grigor'ev- a secretary of the Soviet Komsomol (All Union Organization of Communist Youth) and other.

  9. Report on Operation of Antiproton Decelerator

    SciTech Connect

    Belochitskii, Pavel

    2006-03-20

    The Antiproton Decelerator (AD) at CERN operates for physics since 1999. The 3.5 GeV/c antiprotons produced in the target by a 26 GeV/c proton beam coming from CERN PS. Since the experiments need a low energy antiprotons, beam is decelerated in the AD down to an extraction momentum of 100 MeV/c. Due to significant emittance blow up during deceleration, as well as tight requirements from experiments on extracted beam sizes, efficient compression of beam phase space is indispensable. Two cooling systems, stochastic and electron are used in AD. The progress in machine performance is reviewed, along with plans for the future. Special emphasis is given to the proposed new extra low energy antiproton ring (ELENA) for deceleration of antiproton beam further down to an energy of 100 keV (momentum 13.7 MeV/c), which would allow much higher antiproton capture rate with significantly higher beam density.

  10. Long-range atmospheric transport of persistent organic pollutants to remote lacustrine environments.

    PubMed

    Ruiz-Fernández, Ana Carolina; Ontiveros-Cuadras, Jorge Feliciano; Sericano, José L; Sanchez-Cabeza, Joan-Albert; Liong Wee Kwong, Laval; Dunbar, Robert B; Mucciarone, David A; Pérez-Bernal, Libia Hascibe; Páez-Osuna, Federico

    2014-09-15

    Concentrations, temporal trends and fluxes of persistent organic pollutants (POPs: PAHs, PCBs and PBDEs) were determined in soil and (210)Pb-dated sediment cores from remote lacustrine environments (El Tule and Santa Elena lakes) in rural areas of Central Mexico. In both areas, the concentrations of target analytes in soil and sediment samples were comparable and indicative of slightly contaminated environments. The prevalence of low-molecular-weight PAHs in soils suggested their mainly atmospheric origin, in contrast to the aquatic sediments where runoff contribution was also significant. Increasing contamination trends of PCBs and PBDEs were evident, showing maximum fluxes of 4.8 ± 2.1 and 0.3 ± 0.1 ng cm(-2) a(-1) for PCBs and PBDEs, respectively. The predominance of lower-brominated PBDEs and lower-chlorinated PCBs in soils and sediments indicated that their presence is mostly due to long-range atmospheric transport. PMID:24971459

  11. Local NASA Scientists Discover New Species of Organism in Mars-Like Environment

    NASA Technical Reports Server (NTRS)

    2003-01-01

    Microbiologist Dr. Elena V. Pikuta, and Astrobiologist Richard Hoover culture extremophiles, microorganisms that can live in extreme environments, in the astrobiology laboratory at the National Space Science and Technology Center (NSSTC) in Huntsville, Alabama. The scientists recently discovered a new species of extremophiles, Spirochaeta Americana. The species was found in Northern California's Mono Lake, an alkaline, briny oxygen-limited lake in a closed volcanic crater that Hoover believes may offer new clues to help identify sites to research for potential life on Mars. Hoover is an astrobiologist at NASA's Marshall Space Flight Center (MSFC), and Pikuta is a microbiologist with the Center for Space Plasma and Aeronomy Research Laboratory at the University of Alabama in Huntsville. The NSSTC is a partnership with MSFC, Alabama universities, industry, research institutes, and federal agencies.

  12. Testing the Pairs-Reflection Model with X-Ray Spectral Variability and X-Ray Properties of Complete Samples of Radio-Selected BL Lacertae Objects

    NASA Astrophysics Data System (ADS)

    Urry, C. Megan

    1997-01-01

    This grant was awarded to Dr. C. Megan Urry of the Space Telescope Science Institute in response to two successful ADP proposals to use archival Ginga and Rosat X-ray data for 'Testing the Pairs-Reflection model with X-Ray Spectral Variability' (in collaboration with Paola Grandi, now at the University of Rome) and 'X-Ray Properties of Complete Samples of Radio-Selected BL Lacertae Objects' (in collaboration with then-graduate student Rita Sambruna, now a post-doc at Goddard Space Flight Center). In addition, post-docs Joseph Pesce and Elena Pian, and graduate student Matthew O'Dowd, have worked on several aspects of these projects. The grant was originally awarded on 3/01/94; this report covers the full period, through May 1997. We have completed our project on the X-ray properties of radio-selected BL Lacs.

  13. Division B Commission 6: Astronomical Telegrams

    NASA Astrophysics Data System (ADS)

    Yamaoka, H.; Green, D. W. E.; Samus, N. N.; Aksnes, K.; Gilmore, A. C.; Nakano, S.; Sphar, T.; Tichá, J.; Williams, G. V.

    2016-04-01

    IAU Commission 6 ``Astronomical Telegrams'' had a single business meeting during Honolulu General Assembly of the IAU. It took place on Tuesday, 11 August 2015. The meeting was attended by Hitoshi Yamaoka (President), Daniel Green (Director of the Central Bureau for Astronomical Telegrams, CBAT, via Skype), Steven Chesley (JPL), Paul Chodas (JPL), Alan Gilmore (Canterbury University), Shinjiro Kouzuma (Chukyo University), Paolo Mazzali (Co-Chair of the Supernova Working Group), Elena Pian (Scuola Normale Superiore di Pisa), Marion Schmitz (chair IAU Working Group Designations + NED), David Tholen (University of Hawaii), Jana Ticha (Klet Observatory), Milos Tichy (Klet Observatory), Giovanni Valsecchi (INAF\\slash Italy), Gareth Williams (Minor Planet Center). Apologies: Nikolai Samus (General Catalogue of Variable Stars, GCVS).

  14. Hydrothermal processes in partially serpentinized peridotites from Costa Rica: evidence from native copper and complex sulfide assemblages

    NASA Astrophysics Data System (ADS)

    Schwarzenbach, Esther M.; Gazel, Esteban; Caddick, Mark J.

    2014-11-01

    Native metals and metal alloys are common in serpentinized ultramafic rocks, generally representing the redox and sulfur conditions during serpentinization. Variably serpentinized peridotites from the Santa Elena Ophiolite in Costa Rica contain an unusual assemblage of Cu-bearing sulfides and native copper. The opaque mineral assemblage consists of pentlandite, magnetite, awaruite, pyrrhotite, heazlewoodite, violarite, smythite and copper-bearing sulfides (Cu-pentlandite, sugakiite [Cu(Fe,Ni)8S8], samaniite [Cu2(Fe,Ni)7S8], chalcopyrite, chalcocite, bornite and cubanite), native copper and copper-iron-nickel alloys. Using detailed mineralogical examination, electron microprobe analyses, bulk rock major and trace element geochemistry, and thermodynamic calculations, we discuss two models to explain the formation of the Cu-bearing mineral assemblages: (1) they formed through desulfurization of primary sulfides due to highly reducing and sulfur-depleted conditions during serpentinization or (2) they formed through interaction with a Cu-bearing, higher temperature fluid (350-400 °C) postdating serpentinization, similar to processes in active high-temperature peridotite-hosted hydrothermal systems such as Rainbow and Logatchev. As mass balance calculations cannot entirely explain the extent of the native copper by desulfurization of primary sulfides, we propose that the native copper and Cu sulfides formed by local addition of a hydrothermal fluid that likely interacted with adjacent mafic sequences. We suggest that the peridotites today exposed on Santa Elena preserve the lower section of an ancient hydrothermal system, where conditions were highly reducing and water-rock ratios very low. Thus, the preserved mineral textures and assemblages give a unique insight into hydrothermal processes occurring at depth in peridotite-hosted hydrothermal systems.

  15. Vein Formation and Element Mobility During Serpentinization of Peridotites: Mineralogy and Thermodynamic Modeling

    NASA Astrophysics Data System (ADS)

    Schwarzenbach, E. M.; Caddick, M. J.; Beard, J. S.

    2014-12-01

    Serpentinization is a common mineralogical process that occurs in ultramafic rocks when water interacts with the primary minerals olivine and pyroxene to form a rock dominated by serpentine. Temperature of hydration and the primary mineralogy of the peridotite strongly influence the alteration products. We studied peridotites with low to extremely low degrees of serpentinization from two settings, the Santa Elena ophiolite in Costa Rica and the Gakkel Ridge, to test how temperature and primary mineralogy control reactions, reaction sequences, and subsequent vein textures during peridotite hydration. Serpentinization of a harzburgite from Costa Rica occurred at around 250°C, resulting in olivine-hosted veins that are a mixture of brucite and serpentine - with a bulk composition approximately equivalent to hydrated host olivine - and later stage veins that also contain magnetite. Serpentinite that formed by hydration of orthopyroxene is accompanied by talc, with a bulk composition (serp + tlc) that is depleted in silica relative to the orthopyroxene host. In contrast, veins in orthopyroxene in an almost un-serpentinized peridotite (degree of serpentinization ~ 5 %) from the ultra-slow spreading Gakkel Ridge have an average composition very similar to the host orthopyroxene, whilst veins in olivine suggest slight enrichment in silica compared to the host olivine. Replacement of orthopyroxene here results in the formation of serpentine, talc and amphibole. The presence of amphibole in orthopyroxene and the higher degree of orthopyroxene replacement compared to olivine suggests that serpentinization occurred at higher temperatures than in the Santa Elena peridotites, resulting in the mobilization of more silica through the system. Thermodynamic models of the hydration of olivine and orthopyroxene agree with the mineralogical observations and show that hydration of olivine first results in the simple formation of serpentine and brucite. Increasing water-rock ratios then

  16. Baseline assessment of instream and riparian-zone biological resources on the Rio Grande in and near Big Bend National Park, Texas

    USGS Publications Warehouse

    Moring, James Bruce

    2002-01-01

    Five study sites, and a sampling reach within each site, were established on the Rio Grande in and near Big Bend National Park in 1999 to provide the National Park Service with data and information on the status of stream habitat, fish communities, and benthic macroinvertebrates. Differences in stream-habitat conditions and riparian vegetation reflect differences in surface geology among the five sampling reaches. In the most upstream reach, Colorado Canyon, where igneous rock predominates, streambed material is larger; and riparian vegetation is less diverse and not as dense as in the four other, mostly limestone reaches. Eighteen species of fish and a total of 474 individuals were collected among the five reaches; 348 of the 474 were minnows. The most fish species (15) were collected at the Santa Elena reach and the fewest species (9) at the Colorado Canyon and Johnson Ranch reaches. The fish community at Colorado Canyon was least like the fish communities at the four other reaches. Fish trophic structure reflected fish-community structure among the five reaches. Invertivores made up at least 60 percent of the trophic structure at all reaches except Colorado Canyon. Piscivores dominated the trophic structure at Colorado Canyon. At the four other reaches, piscivores were the smallest trophic group. Eighty percent of the benthic macroinvertebrate taxa collected were aquatic insects. Two species of blackfly were the most frequently collected invertebrate taxon. Net-spinning caddisflies were common at all reaches except Santa Elena. The aquatic-insect community at the Boquillas reach was least similar to the aquatic-insect community at the other reaches.

  17. The Costa Rican Jurassic to Miocene oceanic complexes: Origin, tectonics and relations

    NASA Astrophysics Data System (ADS)

    Denyer, Percy; Gazel, Esteban

    2009-12-01

    The occurrences of oceanic assemblages on the Pacific shore of Costa Rica are part of an intricate group of complexes with different tectonic origins. Although they are dismembered and disrupted, they are the only available inland source of information to decipher the evolution of this active margin. Six main regions are described in this paper: (1) Santa Elena Peninsula, constituted by a supra-subduction zone (Santa Elena Nappe), that is overthrusting an igneous-sedimentary Aptian-Cenomanian sequence (Santa Rosa Accretionary Complex), which includes OIB (Ocean Island Basalts) portions, (2) the Nicoya Complex, which is a Jurassic-Cretaceous chert sediment pile disrupted and detached from its original basement by multiple magmatic events that occurred during the formation of the CLIP (Caribbean Large Igneous Province), (3) the Tortugal area formed by the Tortugal Suite with OIB signature and surrounded by Nicoya Complex outcrops, (4) the Herradura Block composed of the Tulín Formation to Maastrichtian to Lower Eocene OIB accreted oceanic island and the Nicoya Complex as basement, (5) Quepos Block correlated with the Tulín Formation, (6) the Osa-Burica Block composed of the Golfito and Burica Terranes (geochemically and chronologically correlated to the Nicoya Complex), Rincón Block (Early Paleocene to Early Eocene accreted seamounts), and the Miocene Osa-Caño Accretionary Complex. The Santa Rosa Accretionary Complex together with the Tortugal Suite have OIB signatures and possibly without Galapagos hotspot geochemical affinity. These coincidences would be explained by the hypothetical existence of an "autochthonous" Cretaceous basement formed by these two regions together with the rest of the Caribbean. Costa Rican basement is constituted by several CLIP portions and seamounts accreted from the end of Cretaceous in the northwest to the Miocene in the southeast, forming the diverse oceanic occurrences of the Pacific, which are mainly connected to the Galapagos

  18. PREFACE 16 ISCMP: Progress in Solid State and Molecular Electronics, Ionics and Photonics

    NASA Astrophysics Data System (ADS)

    Dimova-Malinovska, Doriana; Nesheva, Diana; Petrov, Alexander G.; Primatarowa, Marina T.

    2010-11-01

    We are pleased to introduce the Proceedings of the 16 ISCMP, organized by the Institute of Solid State Physics of the Bulgarian Academy of Sciences. The Chairman of the School was Professor Alexander G Petrov. The School was dedicated to the late Professor Joe Marshall, who served for a long time as Chairman and Honorary Chairman and left us just after having completed the proceedings of the previous School. Like previous events, the School took place in the beautiful Black Sea resort of Saint Constantine and Elena near Varna, going back to the renewed facilities of the Panorama hotel. Participants from 19 different countries delivered 34 invited lecturers and 75 posters, contributing to three sessions of poster presentations. Papers submitted to the Proceedings were refereed according to the high standards of the Journal of Physics: Conference Series and the articles published in this volume illustrate the diversity and the high level of the contributions. Not the least significant factor in the success of the 16 ISCMP was the social program, both the organized events (Welcome and Farewell Parties) and the variety of pleasant local restaurants and beaches. These Proceedings are published for the first time in Journal of Physics: Conference Series. We are grateful to the Journal's staff for encouraging this idea. The Scientific Committee of the ISCMP dedicates this volume of the Proceedings to the living memory of Professor Joe Marshall, Honorary Chairman of the ISCMP. The Committee decided that the next event will take place again in Saint Constantine and Elena, in September 2012. It will be entitled: Open Problems in Condensed Matter Physics, Biomedical Physics and their Applications. Doriana Dimova-Malinovska, Diana Nesheva, Alexander G Petrov and Marina T Primatarowa

  19. Advanced Accelerator Concepts Final Report

    SciTech Connect

    Wurtele, Jonathan S.

    2014-05-13

    physics motivation for our experiment, one that requires only a few dozen researchers but must effectively integrate plasma, accelerator, atomic, and fundamental physics, as well as combine numerous technologies in the control, manipulation, and measurement of neutral and non-neutral particles. The ELENA ring (to which we hope to contribute, should funding be provided) is expect, when completed, to significantly enhance the performance of antihydrogen trapping by increasing by a factor of 100 the number of antiprotons that can be successfully trapped and cooled. ELENA operation is scheduled to commence in 2017. In collaboration with LBNL scientists, we proposed a frictional cooling scheme. This is an alternative cooling method to that used by ELENA. It is less complicated, experimentally unproven, and produces a lower yield of cold antiprotons. Students and postdoctoral researchers work on the trapping, cooling, transport, and nonlinear dynamics of antiprotons bunches that are provided by the AD to ALPHA; they contribute to the operation of the experiment, to software development, and to the design and operation of experiments. Students are expected to spend at summers at CERN while taking courses; after completion of courses they typically reside at CERN for most of the half-year run. The Antiproton Decelerator [AD] at CERN, along with its experiments, is the only facility in the world where antiprotons can be trapped and cooled and combined with positrons to form cold antihydrogen, with the ultimate goal of studying CPT violation and, subsequently, gravitational interactions of antimatter. Beyond the ALPHA experiment, the group worked on beam physics problems including limits on the average current in a time-dependent period cathode and new methods to create longitudinally coherent high repetition rate soft x-ray sources and wide bandwidth mode locked x-ray lasers. We completed a detailed study of quantum mechanical effects in the transit time cooling of muons.

  20. A new tropical active serpentinization end-member discovered in Costa Rica

    NASA Astrophysics Data System (ADS)

    Sanchez-Murillo, R.; Gazel, E.; Boll, J.; Schwarzenbach, E. M.

    2013-12-01

    Serpentinization is a planetary process where ultramafic rocks react with fluids with important consequences on global biogeochemical cycles through formation of H2 and CH4. Exposed sections of upper-mantle rocks on continents, where meteoric water interacts with the ultramafic rocks, provide natural laboratories to study present-day serpentinization. Here, we present geochemical evidence of active serpentinization and methane vents in the Santa Elena Ophiolite (comprising 250 km2 of ultramafic rocks) in Costa Rica. The system is sustained by peridotites with a 50% degree of serpentinization. Two alkaline spring systems were discovered. The alkaline fluids pH ranged from 11.01 to 11.18. Mean hydroxide and carbonate concentrations were 52 mg/L and 38 mg/L. Mean dissolved calcium was 104 mg/L with a maximum of 167 mg/L. These springs are also characterized by low Mg (< 1 mg/L) and K (2.35 mg/L) and relatively high Na (21.4 mg/L) and chloride (27.1 mg/L) concentrations. Average spring temperature was 29.1°C. Active CH4 vents (24.3% volume) coupled with extensive carbonate deposits (magnesite and calcite with isotopic compositions within the range of similar ultramafic hosted systems) also provide strong evidence of active serpentinization. Groundwater and alkaline spring's hydrological connectivity was explored using stable isotope as natural tracers. Isotope composition of the alkaline fluids (d18O = -7.9‰, d2H = -51.4‰) was remarkably similar to the groundwater signature from 10 deep wells (30-70 m) (d18O = -7.6‰; dD = -48.0‰) sampled in local watersheds. These results support the hypothesis that during prolonged dry periods these alkaline springs are fed by deep subsurface storage. Mean electrical conductivity of the alkaline fluids (622 uS/cm) was considerably higher than of surface waters (470 uS/cm); this significant difference may be additional evidence of active serpentinization in the area. Overall, Santa Elena's varying weather conditions between

  1. STS-84 M.S. Kondakova with husband Ryumin at SLF

    NASA Technical Reports Server (NTRS)

    1997-01-01

    STS-84 Mission Specialist Elena V. Kondakova, a cosmonaut with the Russian Space Agency, and her husband, Valery Ryumin, greet press represenatives and other well wishers after her arrival at KSCs Shuttle Landing Facility. Ryumin is director of the Mir- Shuttle program for RSC Energia in Russia. This will be Kondakovas first flight on a U.S. Space Shuttle, but her second trip into space. She spent 169 days in space as flight engineer of the 17th main mission on Mir from October 1994 to March 1995. STS-84 will be the sixth docking of the Space Shuttle with the Russian Space Station Mir. During the docking, STS-84 Mission Specialist C. Michael Foale will transfer to the Russian space station to become a member of the Mir 23 crew, replacing U.S. astronaut Jerry M. Linenger, who will return to Earth on Atlantis. Foale is scheduled to remain on Mir about four months until his replacement arrives on STS-86 in September.

  2. Intradomiciliary and peridomiciliary captures of sand flies (Diptera: Psychodidae) in the leishmaniasis endemic area of Chapare province, tropic of Cochabamba, Bolivia.

    PubMed

    Ballart, C; Vidal, G; Picado, A; Cortez, M R; Torrico, F; Torrico, M C; Godoy, R E; Lozano, D; Gállego, M

    2016-02-01

    In South America, cutaneous leishmaniasis is the most frequent clinical form of leishmaniasis. Bolivia is one of the countries with higher incidence, with 33 cases per 100,000 individuals, and the disease is endemic in 70% of the territory. In the last decade, the number of cases has increased, the age range has expanded, affecting children under 5 years old, and a similar frequency between men and women is found. An entomological study with CDC light traps was conducted in three localities (Chipiriri, Santa Elena and Pedro Domingo Murillo) of the municipality of Villa Tunari, one of the main towns in the Chapare province (Department of Cochabamba, Bolivia). A total of 16 specimens belonging to 6 species of the genus Lutzomyia were captured: Lu. aragaoi, Lu. andersoni, Lu. antunesi, Lu. shawi, Lu. yuilli yuilli and Lu. auraensis. Our results showed the presence of two incriminated vectors of leishmaniasis in an urbanized area and in the intradomicile. More entomological studies are required in the Chapare province to confirm the role of vector sand flies, the intradomiciliary transmission of the disease and the presence of autochthonous cases of cutaneous leishmaniasis. PMID:26608724

  3. A facility to study the particles released by ion sputtering process

    NASA Astrophysics Data System (ADS)

    de Angelis, E.; di Lellis, A. M.; Vannaroni, G.; Orsini, S.; Mangano, V.; Milillo, A.; Massetti, S.; Mura, A.; Vertolli, N.

    2007-08-01

    Research on the planetary surface erosion and planetary evolution could be enriched with the detection of the escaping material, in terms of energy and direction, caused by ions sputtering. A complete study of emitted neutral distribution from which infers the processes occurring on the impacted surface requires dedicated instrumentation, tailored on the peculiarity on the low energy profile of the sputtered signal. We propose a comprehensive facility at INAF/IFSI in Rome intended to provide the opportunity to investigate the interaction of selectable ion beam with planetary analogues through the detection of sputtered neutral atoms. The laboratory is equipped with a high volume UHV chamber, ion selectable sources in the range 0 to 10 keV, a set of 3D sample/sensor orientation motion actuation motors down to 1/100 deg resolution. The laboratory will support a set of neutral sensor heads sets derived from the Emitted for Low Energetic Neutral Atoms (ELENA) instrument under development for the ESA BepiColombo Mercury mission able to detect neutral atoms (few eV-up to 5 keV).

  4. STS-91 Commander Precourt talks to Cosmonauts Kondakova and Ryumin at SLF

    NASA Technical Reports Server (NTRS)

    1998-01-01

    STS-91 Mission Commander Charles Precourt (left) talks to Elena V. Kondakova and her husband, Valery Ryumin, a cosmonaut with the Russian Space Agency (RSA) and STS-91 mission specialist, at Kennedy Space Center's Shuttle Landing Facility (SLF). The STS-91 crew had just arrived at the SLF aboard T-38 jets in preparation for launch. Kondakova, also a cosmonaut with the RSA, flew with Commander Precourt as a mission specialist on STS-84 which launched on May 15, 1997. STS-91 is scheduled to be launched on June 2 on Space Shuttle Discovery with a launch window opening around 6:10 p.m. EDT. The mission will feature the ninth Shuttle docking with the Russian Space Station Mir, the first Mir docking for Discovery, the conclusion of Phase I of the joint U.S.- Russian International Space Station Program, and the first flight of the new Space Shuttle super lightweight external tank. The STS-91 flight crew also includes Pilot Dominic Gorie and Mission Specialists Wendy B. Lawrence; Franklin Chang-Diaz, Ph.D.; and Janet Kavandi, Ph.D. Andrew Thomas, Ph.D., will be returning to Earth with the crew after living more than four months aboard Mir.

  5. Impact of 1985 hurricanes on Isles Dernieres, Louisiana: Temporal and spatial analysis of coastal geomorphic changes

    SciTech Connect

    Debusshere, K.; Westphal, K.; Penland, S.; McBride, R. )

    1989-09-01

    Catastrophic geomorphic changes occurred in the Isles Dernieres barrier island arc as a result of the direct impact of three hurricanes in 1985. The severity of the impact of hurricanes Danny, Elena, and Juan had not been equaled since the landfall of hurricanes Betsy and Camille in the late 1960s. The Isles Dernieres had not been subjected to a direct hurricane landfall since hurricane Bob in 1979. The recent hurricane impacts provided the USGS/LGS Louisiana Cooperative Barrier Island and Land Loss Study the opportunity to examine the process-response characteristics of this low-profile transgressive barrier island arc to multiple hurricane impacts in a single hurricane season. The geomorphic changes along the Isles Dernieres were determined using four sequential airborne videotape surveys acquired in July 1984, July 1985 (pre-storm), August 1985 (post-Danny) and November 1985 (post-Juan) and mapped on 1:24,000 base maps produced from concurrent vertical aerial photography. A coastal geomorphic classification was developed to describe, quantify, and map the alongshore geomorphic, sedimentologic , and vegetative character of this barrier shoreline. The classification consists of three levels of descriptors: (1) primary morphology to define the predominant longshore morphology, (2) modifiers to depict the small-scale longshore features, and (3) variants to locate and quantify important coastal features, not mappable at the scale used.

  6. AVRAM user's manual

    SciTech Connect

    McGrady, P.W.

    1988-02-01

    This document details the use of the reliability code for the Atomic Vapor Laser Isotope Separation (AVLIS) project. This code was designed by Tom Anklam and John Harris. In late 1984 Patrick McGrady and Elena Koontz of C and TD/TA were assigned the task of improving the code and converting it for use on the DEC-10 system. In early 1986, Patric McGrady converted it to the CRAY. The AVRAM code is divided into distinct parts (often referred to as programs in this document). There is a COSMOS file that controls the execution of the FORTRAN code and controls the naming of output datasets and the deletion of temporary datasets created by the code. The FORTRAN code consists of a main program as a driver and of three main subroutines: EDIT, PARAM, and AVRAM. The EDIT program allows the user to create a new user defined system or add to an existing system or to change certain parameters. The PARAM program allows the user to alter system parameters and to select options such as economics run, criticality analysis or sensitivity studies. The AVRAM program does a reliability analysis of the system.

  7. Discovery and microbial content of the driest site of the hyperarid Atacama Desert, Chile.

    PubMed

    Azua-Bustos, Armando; Caro-Lara, Luis; Vicuña, Rafael

    2015-06-01

    The Atacama Desert is the driest and oldest desert on Earth. Eleven years ago, the Yungay region was established as the driest site of this hyperarid desert and also close to the dry limit for life on Earth. Since then, much has been published about the extraordinary characteristics of this site and its pertinence as a Mars analogue model. However, as a result of a more systematic search in the Atacama here, we describe a new site, María Elena South (MES), which is much drier than Yungay. The mean atmospheric relative humidity (RH) at MES was 17.3%, with the RH of its soils remaining at a constant 14% at the depth of 1 m, a value that matches the lowest RH measurements taken by the Mars Science Laboratory at Gale Crater. Remarkably, we found a number of viable bacterial species in the soil profile at MES using a combination of molecular dependent and independent methods, unveiling the presence of life in the driest place on the Atacama Desert reported to date. PMID:25545388

  8. A new scheme to accumulate positrons in a Penning-Malmberg trap with a linac-based positron pulsed source

    SciTech Connect

    Dupre, P.

    2013-03-19

    The Gravitational Behaviour of Antimatter at Rest experiment (GBAR) is designed to perform a direct measurement of the weak equivalence principle on antimatter by measuring the acceleration of anti-hydrogen atoms in the gravitational field of the Earth. The experimental scheme requires a high density positronium (Ps) cloud as a target for antiprotons, provided by the Antiproton Decelerator (AD) - Extra Low Energy Antiproton Ring (ELENA) facility at CERN. The Ps target will be produced by a pulse of few 10{sup 10} positrons injected onto a positron-positronium converter. For this purpose, a slow positron source using an electron Linac has been constructed at Saclay. The present flux is comparable with that of {sup 22}Na-based sources using solid neon moderator. A new positron accumulation scheme with a Penning-Malmberg trap has been proposed taking advantage of the pulsed time structure of the beam. In the trap, the positrons are cooled by interaction with a dense electron plasma. The overall trapping efficiency has been estimated to be {approx}70% by numerical simulations.

  9. Morphodynamic signature of the 1985 hurricane impacts on the northern Gulf of Mexico

    USGS Publications Warehouse

    Penland, Shea; Suter, John R.; Sallenger, Ashbury H., Jr.; Williams, S. Jeffress; McBride, Randolph A.; Westphal, Karen E.; Reimer, P. Douglas; Jaffe, Bruce E.

    1989-01-01

    Three hurricanes hit Lousiana (LA), Mississippi (MS), Alabama (AL), and the Florida (FL) panhandle in 1985, producing dramatic geomorphic changes in a wide variety of coastal environments. The impact zone for hurricanes Danny, Elena, and Juan stretched 1000 km between the Sabine River in LA to the Apalachicola River in FL. Barrier shorelines experienced repeated intense overwash events, producing beach and dune erosion exceeding 30 m, as well as producing classic examples of storm surge deposits. Pre- and post-storm airborne videotape surveys, sequential vertical mapping photography, and field surveys provide the data base for this regional hurricane impact assessment on the northern Gulf of Mexico. Hurricane impacts on the low-profile and high-profile barrier shorelines, as well as on the marine terrace cliffs were systematic and predictable. Controlling the direction of overwash flow and the impact distribution pattern is the relationship among shoreline orientation, hurricane storm track, and regional wind field. The relationship between shore-zone geomorphology and storm surge overwash controls the impact response.

  10. Honors

    NASA Astrophysics Data System (ADS)

    2011-10-01

    More than a dozen AGU members are among 94 researchers announced by U.S. president Barack Obama on 26 September as recipients of the Presidential Early Career Award for Scientists and Engineers. The award, which is coordinated by the Office of Science and Technology Policy within the Executive Office of the President, is considered the highest honor bestowed by the U.S. government on science and engineering professionals in the early stages of their independent research careers. This year's recipients include Jeffrey Book, Naval Research Laboratory; Jonathan Cirtain, NASA Marshall Space Flight Center; Fotini Katopodes Chow, University of California, Berkeley; Elizabeth Cochran, U.S. Geological Survey (USGS); Ian Howat, Ohio State University; Christiane Jablonowski, University of Michigan; Justin Kasper, Smithsonian Astrophysical Observatory; Elena Litchman, Michigan State University; James A. Morris Jr., National Oceanic and Atmospheric Administration (NOAA); Erin M. Oleson, NOAA; Victoria Orphan, California Institute of Technology; Sasha Reed, USGS; David Shelly, USGS; and Feng Wang, University of California, Berkeley. Five AGU members are among 10 U.S. representatives recently selected for International Arctic Science Committee working groups. The AGU members, chosen as representatives through the U.S. National Academies review process, are Atmosphere Working Group member James Overland, Pacific Marine Environmental Laboratory, NOAA; Cryosphere Working Group members Walter Meier, University of Colorado at Boulder, and Elizabeth Hunke, Los Alamos National Laboratory; Marine Working Group member Mary-Louise Timmermans, Yale University; and Terrestrial Working Group member Vanessa Lougheed, University of Texas at El Paso.

  11. Physics with antihydrogen

    NASA Astrophysics Data System (ADS)

    Bertsche, W. A.; Butler, E.; Charlton, M.; Madsen, N.

    2014-12-01

    Performing measurements of the properties of antihydrogen, the bound state of an antiproton and a positron, and comparing the results with those for ordinary hydrogen, has long been seen as a route to test some of the fundamental principles of physics. There has been much experimental progress in this direction in recent years, and antihydrogen is now routinely created and trapped and a range of exciting measurements probing the foundations of modern physics are planned or underway. In this contribution we review the techniques developed to facilitate the capture and manipulation of positrons and antiprotons, along with procedures to bring them together to create antihydrogen. Once formed, the antihydrogen has been detected by its destruction via annihilation or field ionization, and aspects of the methodologies involved are summarized. Magnetic minimum neutral atom traps have been employed to allow some of the antihydrogen created to be held for considerable periods. We describe such devices, and their implementation, along with the cusp magnetic trap used to produce the first evidence for a low-energy beam of antihydrogen. The experiments performed to date on antihydrogen are discussed, including the first observation of a resonant quantum transition and the analyses that have yielded a limit on the electrical neutrality of the anti-atom and placed crude bounds on its gravitational behaviour. Our review concludes with an outlook, including the new ELENA extension to the antiproton decelerator facility at CERN, together with summaries of how we envisage the major threads of antihydrogen physics will progress in the coming years.

  12. Physics with antihydrogen

    NASA Astrophysics Data System (ADS)

    Bertsche, W. A.; Butler, E.; Charlton, M.; Madsen, N.

    2015-12-01

    Performing measurements of the properties of antihydrogen, the bound state of an antiproton and a positron, and comparing the results with those for ordinary hydrogen, has long been seen as a route to test some of the fundamental principles of physics. There has been much experimental progress in this direction in recent years, and antihydrogen is now routinely created and trapped and a range of exciting measurements probing the foundations of modern physics are planned or underway. In this contribution we review the techniques developed to facilitate the capture and manipulation of positrons and antiprotons, along with procedures to bring them together to create antihydrogen. Once formed, the antihydrogen has been detected by its destruction via annihilation or field ionization, and aspects of the methodologies involved are summarized. Magnetic minimum neutral atom traps have been employed to allow some of the antihydrogen created to be held for considerable periods. We describe such devices, and their implementation, along with the cusp magnetic trap used to produce the first evidence for a low-energy beam of antihydrogen. The experiments performed to date on antihydrogen are discussed, including the first observation of a resonant quantum transition and the analyses that have yielded a limit on the electrical neutrality of the anti-atom and placed crude bounds on its gravitational behaviour. Our review concludes with an outlook, including the new ELENA extension to the antiproton decelerator facility at CERN, together with summaries of how we envisage the major threads of antihydrogen physics will progress in the coming years.

  13. Smallpox vaccination in the early 19th century using live carriers: the travels of Francisco Xavier de Balmis.

    PubMed

    Aldrete, J Antonio

    2004-04-01

    Realizing that the Spanish colonies were being devastated by epidemics of smallpox resulting in thousands of deaths, Charles IV, King of Spain, sent one of his court's physicians to apply the recently discovered vaccine. Without refrigeration, the vaccine was passed from one child to another (boys taken out of orphanages). Francisco Xavier de Balmis and a team that included three assistants, two surgeons, and three nurses sailed from Spain on November 30. 1803. They vaccinated more than 100,000 people from the Caribbean Islands and South, Central, and North America, reaching up to San Antonio, Texas, and then traveled to the Philippines, Macao, Canton, and Santa Elena Island, landing back in Cadiz on September 7, 1806. During his journey, Balmis instructed local physicians on how to prepare, preserve, and apply the vaccine, while collecting rare biologic specimens. On the 200th anniversary of their sailing, recognition is given to this group for conducting what was the first global vaccination campaign that reached Texas and California. PMID:15108831

  14. Unexpected effects of third-order cross-terms in heteronuclear spin systems under simultaneous radio-frequency irradiation and magic-angle spinning NMR

    NASA Astrophysics Data System (ADS)

    Tatton, Andrew S.; Frantsuzov, Ilya; Brown, Steven P.; Hodgkinson, Paul

    2012-02-01

    We recently noted [R. K. Harris, P. Hodgkinson, V. Zorin, J.-N. Dumez, B. Elena, L. Emsley, E. Salager, and R. Stein, Magn. Reson. Chem. 48, S103 (2010), 10.1002/mrc.2636] anomalous shifts in apparent 1H chemical shifts in experiments using 1H homonuclear decoupling sequences to acquire high-resolution 1H NMR spectra for organic solids under magic-angle spinning (MAS). Analogous effects were also observed in numerical simulations of model 13C,1H spin systems under homonuclear decoupling and involving large 13C,1H dipolar couplings. While the heteronuclear coupling is generally assumed to be efficiently suppressed by sample spinning at the magic angle, we show that under conditions typically used in solid-state NMR, there is a significant third-order cross-term from this coupling under the conditions of simultaneous MAS and homonuclear decoupling for spins directly bonded to 1H. This term, which is of the order of 100 Hz under typical conditions, explains the anomalous behaviour observed on both 1H and 13C spins, including the fast dephasing observed in 13C{1H} heteronuclear spin-echo experiments under 1H homonuclear decoupling. Strategies for minimising the impact of this effect are also discussed.

  15. PREFACE: 1st Tensor Polarized Solid Target Workshop

    NASA Astrophysics Data System (ADS)

    2014-10-01

    These are the proceedings of the first Tensor Spin Observables Workshop that was held in March 2014 at the Thomas Jefferson National Accelerator Facility in Newport News, Virginia. The conference was convened to study the physics that can be done with the recently approved E12-13-011 polarized target. A tensor polarized target holds the potential of initiating a new generation of tensor spin physics at Jefferson Lab. Experiments which utilize tensor polarized targets can help clarify how nuclear properties arise from partonic degrees of freedom, provide unique insight into short-range correlations and quark angular momentum, and also help pin down the polarization of the quark sea with a future Electron Ion Collider. This three day workshop was focused on tensor spin observables and the associated tensor target development. The workshop goals were to stimulate progress in the theoretical treatment of polarized spin-1 systems, foster the development of new proposals, and to reach a consensus on the optimal polarized target configuration for the tensor spin program. The workshop was sponsored by the University of New Hampshire, the Jefferson Science Associates, Florida International University, and Jefferson Lab. It was organized by Karl Slifer (chair), Patricia Solvignon, and Elena Long of the University of New Hampshire, Douglas Higinbotham and Christopher Keith of Jefferson Lab, and Misak Sargsian of the Florida International University. These proceedings represent the effort put forth by the community to begin exploring the possibilities that a high-luminosity, high-tensor polarized solid target can offer.

  16. ESO Helps Antofagasta Region after the Earthquake

    NASA Astrophysics Data System (ADS)

    2007-11-01

    On November 14 at 12:41 local time, a major earthquake with magnitude 7.7 on the Richter scale affected the north of Chile. The epicentre was located 35 km from the city of Tocopilla and 170 km of Antofagasta. Two persons died and tens were injured, while buildings were damaged in several cities. In the Maria Elena-Tocopilla area, several thousand homes were destroyed or damaged. In an act of solidarity with the local community and its authorities, ESO immediately announced a donation of 30 millions Chilean pesos (around 40,000 euros) to Antofagasta's Regional Government to support reconstruction in the Region II. ESO and its staff have been shocked by the earthquake and its impact on local communities, especially on the people of Tocopilla. The ESO Representation in Chile formally contacted the regional authorities to explore with them possible ways to collaborate in this difficult moment. In addition, many of ESO staff are personally cooperating with the victims, under the coordination of Cruz Roja, the organisation currently in charge of implementing individual efforts.

  17. The M 7.7 Tocopilla earthquake and its aftershock sequence: deployment of a Task Force local network

    NASA Astrophysics Data System (ADS)

    Sobiesiak, M.; Eggert, S.; Woith, H.; Grosser, H.; Peyrat, S.; Vilotte, J.; Medina, E.; Ruch, J.; Walter, T.; Victor, P.; Barrientos, S.; Gonzalez, G.

    2008-05-01

    After the November 14, 2007 Tocopilla earthquake in northern Chile, a local network of 20 short period seismic stations, 5 strong motion instruments, 6 GPS stations and 3 extensometers has been installed in the fault plane area between Tocopilla and Antofagasta by the German Task Force for earthquakes (GFZ Potsdam). The hydrogeology group of the TF sampled 20 thermal water sources in the area of the El Tatio geyser field, located about 170 km E of the epicentre. In collaboration with the IPG Paris, 4 broad band stations were deployed at the northern end of the fault plane between Tocopilla and Maria Elena. Major targets of the investigations of the aftershock sequence are the segment boundary between the 1995 Antofagasta earthquake and the recent Tocopilla event, stress transfer between both successively ruptured subduction zone segments, structural properties of the fault plane, possible consequences for the northern adjacent Iquique segment, and the influence of earthquake seismic waves on the El Tatio hydrothermal field. In our presentation we would like to show first results on the spatial distribution of the aftershocks and discuss these in relation to studies we have made on the Antofagasta aftershock sequence.

  18. Astronomy. Inspiration. Art

    NASA Astrophysics Data System (ADS)

    Stanic, N.

    2008-10-01

    This paper speculates how poetry and other kind of arts are tightly related to astronomy. Hence the connection between art and natural sciences in general will be discussed in the frame of ongoing multidisciplinary project `Astronomy. Inspiration. Art' at Public Observatory in Belgrade (started in 2004). This project tends to inspire (better to say `infect') artist with a cosmic themes and fantastic sceneries of the Universe. At the very beginning of the project, Serbian poet and philosopher Laza Lazić (who published 49 books of poetry, stories and novels), as well as writer Gordana Maletić (with 25 published novels for children) were interested to work on The Inspiration by Astronomical Phenomena in Serbian Literature. Five young artists and scientists include their new ideas and new approach to multidisciplinary studies too (Srdjan Djukić, Nenad Jeremić, Olivera Obradović, Romana Vujasinović, Elena Dimoski). Two books that will be presented in details in the frame of this Project, "STARRY CITIES" (http://zavod.co.yu) and "ASTROLIES", don't offer only interesting illustrations, images from the latest astronomical observations and currently accepted cosmological theories -- those books induces, provoking curiosity in a specific and witty way, an adventure and challenge to explore and create.

  19. An overview on Sardinia's soft ticks (Ixodida: Argasidae).

    PubMed

    Fois, Francesco; Culurgioni, Jacopo; Cappai, Stefano; Mereu Piras, Pierpaola; Toma, Luciano; Rolesu, Sandro; Liciardi, Manuele

    2016-06-01

    Knowledge about soft ticks (Ixodida: Argasidae) in Sardinia is incomplete and distribution data need to be updated. This work studies soft ticks on the island focusing on two species, Argas reflexus and Ornithodoros maritimus, both recently recorded. A total number of 12 specimens of these species of interest were collected between 2004 and 2015. This study reports for the first time the presence of O. maritimus in a coastal area in Italy, and more generally in a coastal area rather than small islands near the coastline, confirming the presence of this species on the island 20 years after its last recording. Moreover we confirm the presence of A. reflexus on the island, in the town of Cagliari and, for the first time, in the town of Quartu Sant'Elena. At the present state of knowledge, in Sardinia, Ornithodoros erraticus, which was actively looked for within the surveillance for African swine fever, an endemic disease since 1978 on the island, is not present. The presence of another species reported only once in Sardinia, Argas vespertilionis, needs further confirmation. PMID:26940844

  20. Tsunami mapping in the Gulf of Guayaquil, Ecuador, due to local seismicity

    NASA Astrophysics Data System (ADS)

    Ioualalen, M.; Monfret, T.; Béthoux, N.; Chlieh, M.; Ponce Adams, G.; Collot, J.-Y.; Martillo Bustamante, C.; Chunga, K.; Navarrete, E.; Montenegro, G.; Solis Gordillo, G.

    2014-12-01

    The North-Andean subduction zone generates recurrent tsunamigenic earthquakes. The seismicity is usually considered to be segmented because of different specific morphological features of the Nazca Plate driving the subduction motion. Most of the recent powerful earthquakes in the margin were located in its northern part. To the south, the region of the Gulf of Guayaquil, only (undocumented) three events in 1901, 1933 and 1953 were possibly powerful and tsunamigenic. Here we are interested in the tsunami signature due to local seismicity. Two realistic earthquake scenarios (Mw = 7 and Mw = 7.5) taking into account the hypothesized segmentation of the area are proposed. Their return period is supposed to be intra-centenary. Then, a larger magnitude unsegmented Mw = 8 scenario is computed (half-millennium return period). The interior of the Gulf of Guayaquil as well as the Santa Elena Peninsula are sheltered areas including numerous coastal infrastructures and the city of Guayaquil. It is predicted that potential flooding would occur at high tide only for both segmented and unsegmented scenarios in (1) south of Playas with however only a few centimeters of wave height and (2) Chanduy (a few meters). Both are important zones of coastal farms.

  1. Andrei Sakharov Prize Talk: Guerrilla Tactics for Human Rights: the Paradigm of Scientists for Sakharov, Orlov and Sharansky (SOS)

    NASA Astrophysics Data System (ADS)

    Pripstein, Morris

    2010-02-01

    In response to the seriously deteriorating plight of dissident scientist colleagues in the former Soviet Union in the late 1970s, a small group of physicists at the Lawrence Berkeley Laboratory (LBL) came together to plot out a new course of action on behalf of their beleaguered colleagues. A guiding principle was to engage individual scientists to act collectively in unorthodox efforts to publicly ``encourage'' the Soviet authorities to cease their human rights violations. While the focus was to be on the three scientists in the eventual name of the group, ``Scientists for Sakharov, Orlov and Sharansky (SOS),'' it was also meant to be a lightning rod for the more general concern of the plight of all dissident scientists. Examples of such actions included an unprecedented moratorium on scientific cooperation with the Soviet Union, a ``Hostages for Elena Bonner'' initiative where Western scientists volunteered to serve as good-faith witnesses in the Soviet Union for the temporary release of Sakharov's wife for medical treatment in the West, and picketing of embassies and of selected scientists at scientific conferences. Within two years from this small beginning in Berkeley and with no staff whatsoever, the effort grew into an international movement to promote the human rights of scientists, comprising more than 8,000 scientists from 44 countries. As co-founder and chairperson of SOS, I will discuss the evolution of the group's operational principles and actions as well as various reactions to its initiatives, and some possible lessons learned. )

  2. Jurassic Oceanic Remnants In The Siuna Area (NE-Nicaragua) - Tracing The Chortis- Caribbean Paleo-plate Boundary

    NASA Astrophysics Data System (ADS)

    Flores, K.; Baumgartner, P. O.; Skora, S.; Baumgartner, L.; Baumgartner-Mora, C.; Rodriguez, D.

    2006-12-01

    The southern limit of the Chortis Block has been commonly placed along a line between the Santa Elena Peninsula (Costa Rica) and the Hess Escarpment (Eastern Caribbean). However, we have mapped extensive occurrences of ultramafic and mafic rocks, associated with Jurassic radiolarites in the Siuna area. These are in conflict with the current plate tectonic schemes. In the area S and NE of Siuna, we observe three tectono-stratigraphic units: 1. A pre-Cretaceous, subduction-related melange outcropping in a 30 x 5 km sized erosional window. Serpentinite is a (tectonic) matrix for a variety of mappable blocks grouped into the following categories: Gabbros and peridotites preserving original cumulate textures, greenstones, epidote-bearing greenschists, barroisite-bearing metamafics that partially contain garnet+clinopyroxene inclusions, phengite-schists, blue- green amphibole-rich metacherts, detrital quartzites, radiolarian cherts, black shales and Mn-radiolarites- bearing Middle and Late Jurassic Radiolaria. Blocks with greenschists and higher pressure metamorphic facies appear to be concentrated in the central part of the window. In some blocks, greenstones (mainly altered metabasalts) are associated with ribbon-bedded radiolarites and siliceous shales suggesting an original sedimentary contact of sediments on the oceanic crust. This melange resembles (though more polymict) the subduction melanges of the Franciscan and indicates that the Siuna area exposes part of a major suture zone between the Chortis Block and the Caribbean Large Igneous Province (CLIP). 2. Thin-bedded calcareous hemipelagites yielding Aptian/Albian planktonic Foraminifera rest unconformably on the oceanic melange. Distal volcaniclastic turbitites are interbedded. The sequence contains shallow upsections into thick bedded limestones, in which andesitic flows may be intercalated. Well rounded/sorted and imbricated volcanic pebble conglomerates sometimes intervene between the andesites and

  3. Latest climate changes in Romania :tornadoes

    NASA Astrophysics Data System (ADS)

    Pop, Elena

    2014-05-01

    " that eat and spit out roofs, animals, trucks and concrete road poles. I have minutely searched with my students all the data of that tornado, the direction of wind gusts, we have calculated the force of the impact by studying the photos taken on that occasion. I have also done some research on other tornadoes that have taken place In Movilita and Brezoaele the past years. I have studied the increase of the centrifugal force and that of Coriolis in the context of repetition of such dangerous atmospheric phenomena that showed their apparition as ten per year in Romania. Therefore the average Coriolis parameter is 10-4 s-1, for a typical atmospheric speed of 10 m/s (22 mph) the radius is 100 km (62 mi), with a period of about 17 hours. The lowering of the air pressure occurring on such occasions has been one of my concerns as well the the speed of the cloud column rotation. All these phenomena are the effect of the climate change occurring all over our Planet due to pollution. As you can see the devastation produced by such extreme climate lead to spontaneous floods and later desertification on the south-eastern part of our country. References : 1. Craciun, Cristina, Bala, Bogdan, Tornadele din Romania, http://dezechilibrenaturale.blogspot.ro/2013/02/tornadele-din-romania.html 2. Bell, Aurora, Tornadele in Romania, http://vremea.meteoromania.ro/node/33 3. Lemon, R. Leslie, Stan-Sion, Aurora, Soci , Cornel, Corduneanu, Elena, A strong, long -track, Romanian tornado, http://www.sciencedirect.com/science/article/pii/S0169809503000632 Author : Mrs. Elena Pop, Science teacher at "Lucian Blaga" Secondary School, Ocna Mures, Romania

  4. The Chicxulub Multiring Impact Crater and the Cretaceous/Paleogene Boundary: Results From Geophysical Surveys and Drilling

    NASA Astrophysics Data System (ADS)

    Urrutia-Fucugauchi, J.; Perez-Cruz, Ligia

    2010-03-01

    different geophysical aerial, land and marine methods including gravity, magnetics, electromagnetics and seismic refraction and reflection. The impact lithologies and carbonate sequence have been cored as part of several drilling projects. Here we analyze the stratigraphy of Chicxulub from borehole logging data and core analyses, with particular reference to studies on CSDP Yaxcopoil-1 and UNAM Santa Elena boreholes. Analyses of core samples have examined the stratigraphy of the cover carbonate sequence, impact breccia contact and implications for impact age, K/Pg global correlations and paleoenvironmental conditions following impact. The K/Pg age for Chicxulub has been supported from different studies, including Ar/Ar dating, magnetic polarity stratigraphy, geochemistry and biostratigraphy. A Late Maastrichtian age has also been proposed for Chicxulub from studies in Yaxcopoil-1 basal Paleocene carbonates, with impact occurring 300 ka earlier predating the K/Pg boundary. This proposal calls attention to the temporal resolution of stratigraphic and chronological methods, and the need for further detailed analyses of the basal carbonate sections in existing boreholes and new drilling/coring projects. Stratigraphy of impact ejecta and basal sediments in Yaxcopoil-1 and UNAM boreholes indicates a hiatus in the basal sequence. Modeling of post- impact processes suggest erosion effects due to seawater back surge, block slumping and partial rim collapse of post-impact crater modification. Analyses of stable isotopes and magnetostratigraphic data for the Paleocene carbonate sequences in Yaxcopoil-1 and Santa Elena boreholes permit to investigate the post- impact processes, depositional conditions and age of basal sediments. Correlation of stable isotopes with the global pattern for marine carbonate sediments provides a stratigraphic framework for the basal Paleocene carbonates. The analyses confirm a K/Pg boundary age for the Chicxulub impact. References: Collins et al, 2008

  5. Usefulness of conventional transbronchial needle aspiration in the diagnosis, staging and molecular characterization of pulmonary neoplasias by thin-prep based cytology: experience of a single oncological institute

    PubMed Central

    Ramieri, Maria Teresa; Marandino, Ferdinando; Visca, Paolo; Salvitti, Tommaso; Gallo, Enzo; Casini, Beatrice; Giordano, Francesca Romana; Frigieri, Claudia; Caterino, Mauro; Carlini, Sandro; Rinaldi, Massimo; Ceribelli, Anna; Pennetti, Annarita; Alò, Pier Luigi; Pescarmona, Edoardo; Filippetti, Massimo

    2016-01-01

    Background Conventional transbronchial needle aspiration (c-TBNA) contributed to improve the bronchoscopic examination, allowing to sample lesions located even outside the tracheo-bronchial tree and in the hilo-mediastinal district, both for diagnostic and staging purposes. Methods We have evaluated the sensitivity, accuracy, positive predictive value (PPV) and negative predictive value (NPV) of the c-TBNA performed during the 2005–2015 period for suspicious lung neoplasia and/or hilar and mediastinal lymphadenopathy at the Thoracic endoscopy of the Thoracic Surgery Department of the Regina Elena National Cancer Institute, Rome. Data from 273 consecutive patients (205 males and 68 females) were analyzed. Results Among 158 (58%) adequate specimens, 112 (41%) were neoplastic or contained atypical cells, 46 (17%) were negative or not diagnostic. We considered in the analysis first the overall period; then we compared the findings of the first [2005–2011] and second period [2012–2015] and, finally, only those of adequate specimens. During the overall period, sensibility and accuracy values were respectively of 53% and 63%, in the first period they reached 41% and 53% respectively; in the second period sensibility and accuracy reached 60% and 68%. Considering only the adequate specimens, sensibility and accuracy during the overall period were respectively of 80% and 82%; the values obtained for the first period were 68% and 72%. Finally, in the second period, sensibility reached 86% and accuracy 89%. Carcinoma-subtyping was possible in 112 cases, adenocarcinomas being diagnosed in 50 cases; further, in 30 cases molecular predictive data could be obtained. Conclusions The c-TBNA proved to be an efficient method for the diagnosis/staging of lung neoplasms and for the diagnosis of mediastinal lymphadenopathy. Endoscopist’s skill and technical development, associated to thin-prep cytology and to a rapid on site examination (ROSE), were able to provide by c-TBNA a

  6. Galileo's Medicean Moons (IAU S269)

    NASA Astrophysics Data System (ADS)

    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.

  7. Home care for brain tumor patients

    PubMed Central

    Pace, Andrea; Villani, Veronica; Di Pasquale, Antonella; Benincasa, Dario; Guariglia, Lara; Ieraci, Sonia; Focarelli, Silvia; Carapella, Carmine Maria; Pompili, Alfredo

    2014-01-01

    Background Brain tumor patients are quite different from other populations of cancer patients due to the complexity of supportive care needs, the trajectory of disease, the very short life expectancy, and resulting need for a specific palliative approach. Methods A pilot program of comprehensive palliative care for brain tumor patients was started in the Regina Elena National Cancer Institute of Rome in October 2000, supported by the Lazio Regional Health System. The aim of this model of assistance was to meet patient's needs for care in all stages of disease, support the families, and reduce the rehospitalization rate. The efficacy of the model of care was evaluated analyzing the place of death, caregiver satisfaction, rehospitalization rate, and the impact on costs to the health system. Results From October 2000 to December 2012, 848 patients affected by brain tumor were enrolled in a comprehensive program of neuro-oncological home care. Out of 529 patients who died, 323 (61%) were assisted at home until death, 117 (22.2%) died in hospital, and 89 (16.8%) died in hospice. A cost-effectiveness analysis demonstrated a significant reduction in hospital readmission rates in the last 2 months of life compared with the control group (16.7% vs 38%; P < .001). Conclusions Our findings concerning death at home, rehospitalization rate, quality of life, and satisfaction of patients and their relatives with the care received suggest that a neuro-oncologic palliative home-care program has a positive impact on the quality of care for brain tumor patients, particularly at the end of life. PMID:26034609

  8. Tectonics and sedimentary evolution of the Sandino forearc basin off Nicaragua, Central America

    NASA Astrophysics Data System (ADS)

    Costa Pisani, P.; Silver, E.; McIntosh, K.; Ahmed, I.; Ranero, C. R.; Taylor, B.

    2003-04-01

    The Sandino basin is the Nicaragua sector of the Central American forearc, where the Cocos plate subducts beneath the Middle America trench. Recently, Ranero et al. have interpreted a seismic section across the margin and proposed a history of formation of the forearc which is constrained by industry drilling in the basin. They suggested a late Cretaceous to Paleocene accretion event, followed by later subduction erosion processes. The margin wedge consists of the ophiolitic Nicoya complex. The seismic units, unconformities and tectonic features record a rich history of both local and regional vertical movements occurring since the Middle Eocene, which are linked to the evolution of the Pacific convergent margin. During June, 2000, 2800 kms of multichannel seismic reflection data were collected on the R/V Ewing off Nicaragua. Analysis of the 240 channels dataset indicates rapid changes along strike in the Sandino basin. The basin is relatively thin in the southern part, thinning quite rapidly southward against the Nicoya complex of the Santa Elena peninsula of Costa Rica. The forearc sediments thickness approaches and locally exceeds 10 kms in the central and northern parts of the Sandino basin. The oldest units (Upper Cretaceous-Middle Eocene) are very thick off northern Nicaragua, with relatively thin middle to late Cenozoic deposits. However, off central Nicaragua the latter units (Middle-Upper Miocene) attain great thicknesses and the older units appear to thin. This pattern suggests a history of successive deepening of the basin from north to south, after the convergent system evolved from accretion to subduction erosion processes. Present efforts are devoted to quantifying this change in development and using it to understand the dynamics of forearc basin evolution offshore of Central America.

  9. STS-84 Mission Specialist Edward Tsang Lu in white room

    NASA Technical Reports Server (NTRS)

    1997-01-01

    KENNEDY SPACE CENTER, FLA. -- STS-84 Mission Specialist Edward T. Lu prepares to enter the Space Shuttle Atlantis at Launch Pad 39A with help from white room closeout crew members. The fourth Shuttle mission of 1997 will be the sixth docking of the Space Shuttle with the Russian Space Station Mir. The commander is Charles J. Precourt. The pilot is Eileen Marie Collins. The five mission specialists are C. Michael Foale, Carlos I. Noriega, Edward Tsang Lu, Jean-Francois Clervoy of the European Space Agency and Elena V. Kondakova of the Russian Space Agency. The planned nine-day mission will include the exchange of Foale for U.S. astronaut and Mir 23 crew member Jerry M. Linenger, who has been on Mir since Jan. 15. Linenger transferred to Mir during the last docking mission, STS-81; he will return to Earth on Atlantis. Foale is slated to remain on Mir for about four months until he is replaced in September by STS-86 Mission Specialist Wendy B. Lawrence. During the five days Atlantis is scheduled to be docked with the Mir, the STS-84 crew and the Mir 23 crew, including two Russian cosmonauts, Commander Vasily Tsibliev and Flight Engineer Alexander Lazutkin, will participate in joint experiments. The STS-84 mission also will involve the transfer of more than 7,300 pounds of water, logistics and science equipment to and from the Mir. Atlantis is carrying a nearly 300-pound oxygen generator to replace one of two Mir units which have experienced malfunctions. The oxygen it generates is used for breathing by the Mir crew.

  10. Breast cancer and distress resulting from Magnetic Resonance Imaging (MRI): the impact of a psychological intervention of emotional and informative support.

    PubMed

    Caruso, A; Bongiorno, L; Vallini, L; Russo, P; Tomao, F; Grandinetti, M L

    2006-12-01

    The present study assesses the adaptation of a group of female patients with either manifest or suspected breast cancer who have undergone Magnetic Resonance Imaging (MRI) after receiving psychological support. Several studies in literature have reported the effectiveness of such support in reducing anti-oxidant and depression aspects related to MRI. Two random groups of patients, from the Service of Diagnostics Imaging of the Oncological Unit of the Regina Elena Institute of Rome, were enrolled. The experimental group (EG) received routine information together with extra psychological. The control group (CG) received only routine information. All the patients underwent a psychological evaluation, before (TO) and after (T1) the exam. The following evaluation instruments were used: the Crown Crisp Experimental Index (C.C. E.I.), the State-Trait Anxiety Inventory (S.T.A.I. Y1-Y2) and the Self Rating Depression Scale (S.D.S.) for TO and the State-Trait Anxiety Inventory (S.T.A.I. Y1 and the Self Rating Depression Scale (S.D.S.) for T1. Results prior to the MRI exam (TO), show that the women receiving extra information and emotional support (EG) suffer considerably less anxiety and depression compared to the control group. Results after the MRI exam (T1), indicate that the way the exam is carried out is also relevant in reducing anxiety. The level of anxiety, however, was significantly lower in the experimental group compared to the control. Depression levels, on the other hand, remained unaltered. Our results indicate that a psychological intervention aimed at providing more information and giving more emotional support helps patients adapt with a reduction of anxiety and depression. PMID:17310840

  11. New High Energy Electron Component of Earth Radiation Belt

    NASA Astrophysics Data System (ADS)

    Dmitrenko, V. V.; Galper, A. M.; Gratchev, V. M.; Kirillov-Ugryumov, V. G.; Ulin, S. E.; Voronov, S. A.

    The Earth Radiation Belt (ERB) was discovered in the course of the first flights of Russian and American satellites with conventional instruments (gas discharge and scintillation counters), which made it possible to investigate many characteristics of trapped particles and simulate adequate radiation belt models. However, the experimental and theoretical evidence accumulated over recent time, needs more elaborate measurements for its interpretation. These measurements became feasible after the development of devices based on more perfect detectors (solid and gas-filled Cherenkov detectors, magnetic spectrometer, scintillation time-of-flight systems). The evidence requiring new direct measurements in the ERB was obtained in the late 1960s in the course of balloon flights carried out by Cosmophysics Laboratory of the Moscow Engineering and Physics Institute. In these flights a correlation between the high energy electron flux in the upper atmosphere and perturbations ofthe Earth's magnetosphere was established. This phenomenon could be explained assuming there exist high energy electron fluxes in the ERB. High energy electron fluxes in the ERB were recorded for the first time in the direct experiments carried out on board orbital station 'Salyut-6' (orbit altitude - 350 km, inclination 51.6 deg). A scintillation-Cherenkov telescope 'Elena' controlled by cosmonauts was preset to different programmed positions. The measurements were made in the periphery of the ERB, namely, in the part which goes as low as several hundred km in the Brazil Anomaly Region (BRA). The flux of electrons with energies above 30 MeV was up to 104 (m2s sr)-1.

  12. Where on earth to publish? A sample survey comparing traditional and open access publishing in the oncological field

    PubMed Central

    2013-01-01

    Background The paper intends to help scientific authors to make the best choice of journals in which to publish, by describing and comparing journal features in the area of oncology. For this purpose, the authors identified impact factor (IF) ranking, cost options and copyright conditions offered to authors wishing to publish in full open access (OA), subscription-based or hybrid journals. Methods Data referring to articles published in 2010 by three Italian research institutions (National Institute of Health – Rome (ISS), Regina Elena National Cancer Institute – Rome (IRE), National Cancer Institute – Milan (INT) in journals (78) managed according to different business models, all listed in the Journal Citation Reports, subject category Oncology, were collected and analysed. The journals surveyed were ranked according to IF, position in quartiles, publication charges, usage rights in published articles, self-archiving conditions in OAI-compliant repositories digital archives. Results Almost half (34) the journals surveyed were included in the first quartile, thus revealing authors’ preference for journals with a high IF. The prevalent journal business model was the hybrid formula (based on subscriptions but also offering a paid OA option) with 51 journals, followed by subscription-based only journals accounting for 22, while just 5 full OA journals were identified. In general, no relationship was found between IF and article publication charges, in terms of correspondence between more expensive fees and higher IF. Conclusions The issue of OA journals as compared with traditional subscription-based journals is highly debated among stakeholders: library administrators facing financial restrictions, authors seeking to locate the best outlet for their research, publishers wishing to increase their revenues by offering journals with wider appeal. Against this background, factors such as the quest for alternatives to high-cost business models, investments in

  13. A Review on Forearc Ophiolite Obduction, Adakite-Like Generation, and Slab Window Development at the Chile Triple Junction Area: Uniformitarian Framework for Spreading-Ridge Subduction

    NASA Astrophysics Data System (ADS)

    Bourgois, Jacques; Lagabrielle, Yves; Martin, Hervé; Dyment, Jérôme; Frutos, Jose; Cisternas, Maria Eugenia

    2016-05-01

    This paper aggregates the main basic data acquired along the Chile Triple Junction (CTJ) area (45°-48°S), where an active spreading center is presently subducting beneath the Andean continental margin. Updated sea-floor kinematics associated with a comprehensive review of geologic, geochemical, and geophysical data provide new constraints on the geodynamics of this puzzling area. We discuss: (1) the emplacement mode for the Pleistocene Taitao Ridge and the Pliocene Taitao Peninsula ophiolite bodies. (2) The occurrence of these ophiolitic complexes in association with five adakite-like plutonic and volcanic centers of similar ages at the same restricted locations. (3) The inferences from the co-occurrence of these sub-coeval rocks originating from the same subducting oceanic lithosphere evolving through drastically different temperature-pressure (P-T) path: low-grade greenschist facies overprint and amphibolite-eclogite transition, respectively. (4) The evidences that document ridge-jump events and associated microplate individualization during subduction of the SCR1 and SCR-1 segments: the Chonos and Cabo Elena microplates, respectively. The ridge-jump process associated with the occurrence of several closely spaced transform faults entering subduction is controlling slab fragmentation, ophiolite emplacement, and adakite-like production and location in the CTJ area. Kinematic inconsistencies in the development of the Patagonia slab window document an 11- km westward jump for the SCR-1 spreading segment at ~6.5-to-6.8 Ma. The SCR-1 spreading center is relocated beneath the North Patagonia Icefield (NPI). We argue that the deep-seated difference in the dynamically sustained origin of the high reliefs of the North and South Patagonia Icefield (NPI and SPI) is asthenospheric convection and slab melting, respectively. The Chile Triple Junction area provides the basic constraints to define the basic signatures for spreading-ridge subduction beneath an Andean

  14. Influenza vaccination among healthcare workers in a multidisciplinary University hospital in Italy

    PubMed Central

    Esposito, Susanna; Bosis, Samantha; Pelucchi, Claudio; Tremolati, Elena; Sabatini, Caterina; Semino, Margherita; Marchisio, Paola; della Croce, Francesco; Principi, Nicola

    2008-01-01

    Background Annual influenza vaccination is recommended for healthcare workers (HCWs) in order to reduce the morbidity associated with influenza in healthcare settings. The aim of this study was to evaluate the current vaccination status of the HCWs in one of Italy's largest multidisciplinary University Hospitals. Methods Between February 1 and March 31, 2006, we carried out a cross-sectional study of influenza vaccination coverage among HCWs at the University Hospital Fondazione IRCCS "Ospedale Maggiore Policlinico, Mangiagalli e Regina Elena", Milan, Italy. After receiving a brief description of the aim of the study, 2,143 (95%: 1,064 physicians; 855 nurses; 224 paramedics) of 2,240 HCWs self-completed an anonymous questionnaire. Results Influenza vaccination coverage was very low in all specialties, varying from 17.6% in the Emergency Department to 24.3% in the Surgery Department, and knowledge of influenza epidemiology and prevention was poor. The factors positively associated with being vaccinated were an age of ≥ 45 years, considering influenza a potentially severe disease, and being aware of the high-risk categories for which influenza vaccination is strongly recommended; those that negatively associated with being vaccinated were being female, working in the Medicine Department, and being a nurse or paramedic. Conclusion Despite strong recommendations, influenza vaccination coverage seemed to be very low among HCWs of all specialties, with differences between areas and types of employment. Specific continuous educational and vaccination programs for different targets should be urgently organized to reduce morbidity and mortality in high-risk patients, contain nosocomial outbreaks, and ensure an appropriate socioeconomic impact. PMID:19105838

  15. List of Participants

    NASA Astrophysics Data System (ADS)

    2014-07-01

    Alba Paolo (Università di Torino) Becattini Francesco (Università di Firenze) Bombaci Ignazio (Università di Pisa) Bonaccorso Angela (INFN Pisa) Colonna Maria (INFN-LNS Catania) Coraggio Luigi (INFN Napoli) Covello Aldo (Università di Napoli) Di Toro Massimo (Università di Catania) De Angelis Giacomo (INFN-LNL Legnaro) Gargano Angela (INFN Napoli) Gattobigio Mario (INLN, Université de Nice-Sophia Antipolis, CNRS, France) Gensini Paolo (INFN Lecce) Giannini Mauro (Università di Genova) Girlanda Luca (Università del Salento) Giusti Carlotta (Università di Pavia) Greco Vincenzo (Università di Catania) Grossi Eduardo (Università di Firenze) Itaco Nunzio (Università di Napoli) Kievsky Alejandro (INFN Pisa) Lanza Edoardo (INFN Catania) Lavagno Andrea (Politecnico di Torino) Logoteta Domenico (Universidade de Coimbra, Coimbra, Portugal) Lo Iudice Nicola (Università di Napoli) Lombardo Maria Paola (INFN-LNF Frascati) Lo Meo Sergio (ENEA Bologna) Mannarelli Massimo (INFN-LNGS Assergi) Marcucci Laura Elisa (Università di Pisa) Matera Francesco (Università di Firenze) Orlandini Giuseppina (Università di Trento) Pacati Franco (Università di Pavia) Pederiva Francesco (Università di Trento) Pirrone Sara (INFN Catania) Puglisi Armando (Università di Catania) Radici Marco (INFN Pavia) Rinaldi Matteo (Università di Perugia) Roggero Alessandro (Università di Trento) Rolando Valentina (Università di Ferrara) Rosati Sergio (Università di Pisa) Ruggieri Marco (Università di Catania) Salmè Gianni (INFN Roma) Santopinto Elena (INFN Genova) Scopetta Sergio (Università di Perugia) Taiuti Mauro (Università di Genova) Vigezzi Enrico (INFN Milano) Viviani Michele (INFN Pisa) Vorabbi Matteo (Università di Pavia)

  16. The Mw 7.7 Tocopilla, Chile, Earthquake of 14 November 2007: A Comprehensive Study Using Teleseismic, Local and InSAR data.

    NASA Astrophysics Data System (ADS)

    Campos, J.; Peyrat, S.; Bejar, M.; Socquet, A.; Meneses, G.; Perez, A.; Madariaga, R.; Favreau, P.; Bernard, P.; Barrientos, S.; Armijo, R.; Asch, G.; Sobesiak, M.; Vilotte, J.

    2008-05-01

    A large Mw 7.7 earthquake took place in the Northern Chile subduction zone severely affecting the cities of Tocopilla, Maria Elena, Quillagua and Mejillones . The earthquake was very well recorded by many broadband stations at teleseismic distances and by more than 10 three-component accelerographs in the near field, four of them right above the rupture region. These data plus InSAR interferograms spanning the date of the earthquake were independently analysed and inverted to determine the characteristics of this event. Two main patches of energy release, located along the plate interface, close to the Chilean coast were clearly identified from the waveform inversion. These patches, separated by 60 to 65 km, ruptured from north to south with a velocity between 2.8 to 3.0 km/s. This rupture scenario is consistent with the modelling of InSAR interferograms by Bejar et al (2008) and the kinematic inversion of near field data by Peyrat et al (2008). Most of the early aftershocks, which took place during the two weeks following the main event, occurred near the Southern end of the rupture zone, just North of the Mejillones Peninsula. The majority of them were thrust events with focal mechanisms similar to that of the mainshock, except for the largest aftershock that took place on 16 December at the southern end of the rupture zone. The latter is a compressional event at 40 km depth, with compression along the slab ("slab push" mechanism). This complex pattern of seismicity, in addition to the lack of co-seismic displacement along the plate interface beneath the Mejillones Peninsula, indicates that structures under the peninsula play a significant role in the subduction process. Bejar et al (2008), Rupture geometry and slip associated with the 2007 November 14 Mw = 7.7 Tocopilla (Chile) earthquake, as preliminary determined by InSAR and GPS observations, this meeting Peyrat et al. (2008). Detailed source process of the 2007 Tocopilla earthquake, this meeting.

  17. U.S. elementary and secondary schools: equalizing opportunity or replicating the status quo?

    PubMed

    Rouse, Cecilia Elena; Barrow, Lisa

    2006-01-01

    Although education pays off handsomely in the United States, children from low-income families attain less education than children from more advantaged families. In this article, Cecilia Elena Rouse and Lisa Barrow investigate why family background is so strongly linked to education. The authors show that family socioeconomic status affects such educational outcomes as test scores, grade retention, and high school graduation, and that educational attainment strongly affects adult earnings. They then go on to ask why children from more advantaged families get more or better schooling than those from less advantaged families. For low-income students, greater psychological costs, the cost of forgone income (continuing in school instead of getting a job), and borrowing costs all help to explain why these students attain less education than more privileged children. And these income-related differences in costs may themselves be driven by differences in access to quality schools. As a result, U.S. public schools tend to reinforce the transmission of low socioeconomic status from parents to children. Policy interventions aimed at improving school quality for children from disadvantaged families thus have the potential to increase social mobility. Despite the considerable political attention paid to increasing school accountability, as in the No Child Left Behind Act, along with charter schools and vouchers to help the children of poor families attend private school, to date the best evidence suggests that such programs will improve student achievement only modestly. Based on the best research evidence, smaller class sizes seem to be one promising avenue for improving school quality for disadvantaged students. High teacher quality is also likely to be important. However, advantaged families, by spending more money on education outside school, can and will partly undo policy attempts to equalize school quality for poor and nonpoor children. PMID:17036548

  18. Serpentinization, element transfer, and the progressive development of zoning in veins: evidence from a partially serpentinized harzburgite

    NASA Astrophysics Data System (ADS)

    Schwarzenbach, Esther M.; Caddick, Mark J.; Beard, James S.; Bodnar, Robert J.

    2016-01-01

    Serpentinization is an important geochemical process that affects the chemistry and petrophysical properties of the oceanic lithosphere and supports life through abiogenic formation of hydrogen. Here, we document through detailed mineralogical evidence and equilibrium thermodynamic models the importance of water (H2O) and silica (SiO2) activities on mineral assemblages produced during progressive serpentinization of a harzburgite. We describe a harzburgite from the Santa Elena Ophiolite in Costa Rica that is ~30 % serpentinized. Serpentine + brucite ± magnetite veins occur in olivine, Al-rich serpentine + talc veins occur in orthopyroxene, and Al-rich serpentine ± talc ± brucite veins occur at the boundary of orthopyroxene and olivine. Bulk vein chemistry and element distribution maps demonstrate distinct chemical zonations within veins and chemical gradients between orthopyroxene- and olivine-dominated areas. Specifically, the sample records (1) varying brucite composition depending on whether or not it is associated with magnetite, (2) formation of magnetite from Fe-rich brucite (±Fe-rich serpentine) during olivine hydration, where magnetite coexists with brucite Mg#96 and serpentine Mg#99, (3) chemical gradients in Si, Al, Cr, and Ca within and between orthopyroxene- and olivine-hosted veins, and 4) local (different) equilibrium assemblages within different zones of veins. The studied sample preserves rarely observed textures documenting continuous replacement of olivine, rather than individual vein generations and overprinting that is typically observed in more intensely serpentinized peridotites. Furthermore, the presence of a discrete sequence of vein textures and mineralogy allows direct comparison between mineral textures and equilibrium thermodynamic models and permits new insights into mineral reactions during serpentinization.

  19. The response of shelf waters to the passage of tropical cyclones—observations from the Gulf of Mexico

    NASA Astrophysics Data System (ADS)

    Halper, Fern B.; Schroeder, William W.

    1990-08-01

    Current meter data obtained from sites on the Alabama, west Florida, and Texas-Louisiana shelves during 1979 coincided with the passage of five tropical cyclones; hurricane Bob, tropical storm Claudette, tropical storm Elena, hurricane Frederic and hurricane Henri, and a sixth storm (hurricane David) which skirted the west Florida coast, although the eye remained east of the Florida penninsula. The observations suggest that along the Alabama shelf (25 m water depth), where the isobaths were essentially perpendicular to the path of the storms, hurricanes Bob and Frederic and tropical storm Claudette caused coastal set-up/set-down, resulting in a complex response. The observations from the west Florida shelf (31 m water depth), where storm paths generally paralleled the isobaths, suggest that the flows associated with hurricanes Frederic, David and possibly tropical storm Claudette were a combination of the storms setting water in motion as they moved through the Gulf of Mexico and local wind forcing. These observations are supported, in part, by the results of an empirical model developed by HOLLAND (1980, Monthly Weather Review, 108, 1212-1218) to estimate the winds associated with tropical cyclones. At the Texas mooring (100 m water depth), one storm, Claudette, passed nearly over the mooring, forcing the flow to a depth of 50 m below the surface. With the exception of hurricane Frederic at the Alabama shelf mooring, and tropical storm Claudette at the Texas mooring, a response to some of the tropical cyclones occurred even when the center of the storms passed over 200 km from the moorings.

  20. Front matter.

    PubMed

    2014-01-01

    The second KES International Conference on Innovation in Medicine and Healthcare (InMed-14) was held over 9-11 July 2014 in San Sebastian, Spain, organised by KES International in partnership with the University of the Basque Country, UPV/EHU and the Institute of Knowledge Transfer. InMed-14 gathered researchers and engineers, managers, students and practitioners from a broad medically-related arena. This multi-disciplinary group met to discuss the ways that technological and methodological innovation, knowledge exchange and enterprise can be applied to issues relating to medicine, surgery, healthcare and the issues of an ageing population. A central theme of the conference was Smart Medical and Healthcare Systems which covered the ways in which modern intelligent systems contribute to the solution of problems faced by healthcare and medical practitioners today, addressing the application of these systems. The conference featured five excellent keynote talks from internationally renowned experts, namely: • Edward J. Ciaccio, Columbia University, NY (talk entitled 'Model of Reentrant Ventricular Tachycardia based on Wavefront Curvature'); • Jesus Cortes, Biocruces, Ikerbasque, Spain (talk entitled 'Computational Neuroimaging for Health and Disease'); • Juan Manuel Gorriz, University of Granada, Spain (talk entitled 'DiagnoSIS: Diagnosis by means of Statistical and Intelligent Systems'); • Ricardo Sanchez Peña, ITBA & CONICET, Argentina (talk entitled 'Automatic Control of Diabetes type 1'); and • Sebastiano Stramaglia, Ikerbasque Visiting Professor, Spain (talk entitled 'Causality measures for Brain Computation'). In addition to the General Track, chaired by Prof Manuel Grana, University of the Basque Country UPV/EHU and the Workshop on Smart Medical and Healthcare, chaired by Dr Carlos Toro, Vicomtech-IK4, Systems, there were special sessions on Medical Decision-Support Systems chaired by Dr Elena Hernández-Pereira, University of La Coruña, Spain

  1. SUPPORT FOR THE CONFERENCE ''WOCE & BEYOND'' TO BE HELD NOVEMBER 2002

    SciTech Connect

    Nowlin, Worth, D., Jr., Distinguished Professor, Department of Oceanography, Texas A&M University

    2003-02-05

    OAK B188 We are proud to report that the WOCE and Beyond meeting was a tremendous success, garnering praise for its content and execution from federal agency representatives, international sponsors, the speakers, and the audience. The conference attracted 379 registered participants (total attendance was 401) from 22 countries; 319 posters were presented; and 30 oral presentations by distinguished researchers touched on all aspects of WOCE science.Particularly gratifying to the organizers was the active participation of 43 students from around the world. In addition to helping underwrite infrastructure costs related to the poster sessions, DOE's grant supported the travel and subsistence of 12 students and funded the awards for outstanding student posters (31 student posters were judged for three prizes of $500 each). Thus a strategic goal of the meeting-entraining young scientists into the WOCE research stream-was achieved with the help of DOE funding.Post-conference, the meeting' s website (http://www.woce2002.tamu.edu) was revamped to link to the plenary session presentations and poster abstracts. This website will be maintained until June of 2003. A copy of the meeting document, combining the program and poster abstracts will be sent to Dr. Anna Palmisano, DOE Scientific Officer.Recipients of travel support were: Mr Marcelo Barreiro, Texas A&M University Ms Elena Brambilla, Scripps Institution of Oceanography Ms Shuimin Chen, University of Hawaii Ms Meyre da Silva, Texas A&M University Ms Elizabeth Douglass, Scripps Institution of Oceanography Mr Shane Elipot, Scripps Institution of Oceanography Mr Joong-Tae Kim, Texas A&M University Mr Yueng-Djern Lenn, Scripps Institution of Oceanography's Nadja Lonnroth, Texas A&M University Mr Alvaro Montenegro, Florida State University Ms Sarah Zedler, Scripps Institution of Oceanography's Li Zhang, Texas A&M University Recipients of $500 Prizes for Outstanding Student Posters: Mr Geoffrey Gebbie, Massachusetts Institute

  2. Evolution of Fractal Parameters through Development Stage of Soil Crust

    NASA Astrophysics Data System (ADS)

    Ospina, Abelardo; Florentino, Adriana; Tarquis, Ana Maria

    2016-04-01

    ). REFERENCES Karperien, A. (2013). FracLac for ImageJ. Méndoza, B., Florentino, A., Hernández-Hernández, R.M., Aciego, J., Torres, D. and Vera, Elena. (2013). Biological attributes of two Quibor soils with addition of organic fertilizer and salt solutions. Revista Mexicana de Ciencias Agrícolas, 4(3), 409-421. Ospina, Abelardo, Adriana Florentino and Ana M. Tarquis (2015) Spatial Pattern of Biological Soil Crust with Fractal Geometry. Geophysical Research Abstracts, 17, EGU2015-15415-1 Toledo, V. and Florentino, A. (2009). The Microbiotic Crust On Soil. Revista de Investigación N° 68(33), 199-216.

  3. The dependence of the discharge of nitrous oxide by ordinary chernozem steppe of the Central-Chernozem Region of Russia from the content of humus, nitrogen and enzymatic activity

    NASA Astrophysics Data System (ADS)

    Avksentev, Alexey; Negrobova, Elena; Kramareva, Tatiana; Moiseeva, Evgenya

    2016-04-01

    The dependence of the discharge of nitrous oxide by ordinary chernozem steppe of the Central-Chernozem Region of Russia from the content of humus, nitrogen and enzymatic activity Alexey Avksentev, Elena Negrobova, Tatiana Kramareva, Evgenya Moiseeva 394000 Voronezh, Universitetskaya square, 1 Voronezh State University Nitrous oxide is emitted by soil as a result of microbiological processes, ranks third in the list of aggressive greenhouse gas after carbon dioxide and methane. Nitrous oxide is formed during nitrification and denitrification of ammonia that enters the soil during microbial decomposition of complex organic compounds. Denitrification can be direct and indirect. In the microbiological process of recovery of nitrates involved of the organic substance. In aerobic conditions microorganisms denitrificator behave like normal saprotrophs and oxidize organic matter in the act of breathing oxygen. Thus, they operate at different times two enzyme systems: the electron transport chain with an oxygen acceptor in aerobic and restoration of nitrates under anaerobic conditions. Investigation of the emission of nitrous oxide by ordinary Chernozem steppe of the Central-Chernozem Region showed that it depends on the type of cenosis and the content of available forms of nitrogen. Natural ecosystems emit nitrous oxide more than the soil of arable land. The dependence of the emission of nitrous oxide from the humus content shows positive trend, but the aggregation of data, significant differences are not detected. Research shows that nitrous oxide emissions are seasonal. So the autumn season is characterized by nitrous oxide emissions than spring. Enzymatic processes are an important link in the biological cycle of elements and, consequently, participate in the process of decomposition of organic matter, nitrification and other processes. Analysis of the data on enzyme activity of ordinary Chernozem and the intensity of emission of N20 shows a clear relationship between

  4. PREFACE: XX International School on Nuclear Physics, Neutron Physics and Applications (Varna2013)

    NASA Astrophysics Data System (ADS)

    Stoyanov, Chavdar; Dimitrova, Sevdalina

    2014-09-01

    nuclear waste treatment. Nuclear methods for applications. A special session in honor of the late Mario Stoitsov, was also part of the program. Many colleagues of Mario from all over the world came to Varna to pay tribute to this prominent scientist and loyal friend. Several colleagues contributed to the organization of the School. We would like to thank them and especially the Scientific Secretary of the School Dr Elena Stefanova and the members of the Organizing Committee Dr Dimitar Tarpanov and Peter Zivkov for their cordiality and high level assistance. We are also grateful to Dr Jacek Dobaczewski, who reached out to the collaborators of Mario Stoitsov on behalf of the conference. Sofia, 20 March 2014 Co-chair persons of the Organizing Committee Prof Dr Sc Ch Stoyanov Prof Dr Sc S Dimitrova Details of the committees are available in the PDF.

  5. List of Participants

    NASA Astrophysics Data System (ADS)

    Bombaci, I.; Covello, A.; Marcucci, L. E.; Rosati, S.

    2009-07-01

    Armani Paolo (Università di Trento) Benhar Omar (INFN Roma) Bombaci Ignazio (Università di Pisa) Bonanno Luca (Università di Ferrara) Catara Francesco (Università di Catania) Cò Giampaolo (Università di Lecce) Colonna Maria (Laboratori Nazionali del Sud, INFN Catania) Colonna Nicola (INFN Bari) Conti Francesco (Università di Pavia) Coraggio Luigi (INFN Napoli) Covello Aldo (Università di Napoli) Cristoforetti Marco (Technische Universität München, Germania) Cuofano Carmine (Università di Ferrara) Di Toro Massimo (Università di Catania) Drago Alessandro (Università di Ferrara) Faccioli Pietro (Università di Trento) Farina Nicola (INFN Roma) Finelli Paolo (Università di Bologna) Fiorentini Giovanni (Università di Ferrara) Fortunato Lorenzo (Università di Padova) Gambacurta Danilo (Università di Catania) Gandolfi Stefano (Università di Trento) Gargano Angela (INFN Napoli) Giannini Mauro (Università di Genova) Girlanda Luca (INFN Pisa) Giusti Carlotta (INFN Pavia) Illarionov Alexei (SISSA Trieste) Itaco Nunzio (Università di Napoli) Kievsky Alejandro (INFN Pisa) Lanza Edoardo (INFN Catania) Leidemann Winfried (Università di Trento) Lenzi Silvia (Università di Padova) Lipparini Enrico (Università di Trento) Lissia Marcello (Università di Cagliari) Lo Iudice Nicola (Università di Napoli) Maieron Chiara (Università di Lecce) Marcucci Laura Elisa (Università di Pisa) Matera Francesco (Università di Firenze) Millo Raffaele (Università di Trento) Orlandini Giuseppina (Università di Trento) Pacati Franco (Università di Pavia) Pastore Alessandro (Univeristy of Jyväskylä, Finlandia) Pederiva Francesco (Università di Trento) Pisent Gualtiero (Università di Padova) Prete Gianfranco (INFN Laboratori Nazionali di Legnaro) Quarati Piero (Politecnico di Torino) Rosati Sergio (Università di Pisa) Salmè Giovanni (INFN Roma) Santopinto Elena (INFN Genova) Traini Marco (Università di Trento) Vigezzi Enrico (INFN Milano) Vitturi Andrea (Universit

  6. PREFACE: INERA Workshop: Transition Metal Oxide Thin Films-functional Layers in "Smart windows" and Water Splitting Devices. Parallel session of the 18th International School on Condensed Matter Physics

    NASA Astrophysics Data System (ADS)

    2014-11-01

    The Special issue presents the papers for the INERA Workshop entitled "Transition Metal Oxides as Functional Layers in Smart windows and Water Splitting Devices", which was held in Varna, St. Konstantin and Elena, Bulgaria, from the 4th-6th September 2014. The Workshop is organized within the context of the INERA "Research and Innovation Capacity Strengthening of ISSP-BAS in Multifunctional Nanostructures", FP7 Project REGPOT 316309 program, European project of the Institute of Solid State Physics at the Bulgarian Academy of Sciences. There were 42 participants at the workshop, 16 from Sweden, Germany, Romania and Hungary, 11 invited lecturers, and 28 young participants. There were researchers present from prestigious European laboratories which are leaders in the field of transition metal oxide thin film technologies. The event contributed to training young researchers in innovative thin film technologies, as well as thin films characterization techniques. The topics of the Workshop cover the field of technology and investigation of thin oxide films as functional layers in "Smart windows" and "Water splitting" devices. The topics are related to the application of novel technologies for the preparation of transition metal oxide films and the modification of chromogenic properties towards the improvement of electrochromic and termochromic device parameters for possible industrial deployment. The Workshop addressed the following topics: Metal oxide films-functional layers in energy efficient devices; Photocatalysts and chemical sensing; Novel thin film technologies and applications; Methods of thin films characterizations; From the 37 abstracts sent, 21 manuscripts were written and later refereed. We appreciate the comments from all the referees, and we are grateful for their valuable contributions. Guest Editors: Assoc. Prof. Dr.Tatyana Ivanova Prof. DSc Kostadinka Gesheva Prof. DSc Hassan Chamatti Assoc. Prof. Dr. Georgi Popkirov Workshop Organizing Committee Prof

  7. Lower survival probabilities for adult Florida manatees in years with intense coastal storms

    USGS Publications Warehouse

    Langtimm, C.A.; Beck, C.A.

    2003-01-01

    The endangered Florida manatee (Trichechus manatus latirostris) inhabits the subtropical waters of the southeastern United States, where hurricanes are a regular occurrence. Using mark-resighting statistical models, we analyzed 19 years of photo-identification data and detected significant annual variation in adult survival for a subpopulation in northwest Florida where human impact is low. That variation coincided with years when intense hurricanes (Category 3 or greater on the Saffir-Simpson Hurricane Scale) and a major winter storm occurred in the northern Gulf of Mexico. Mean survival probability during years with no or low intensity storms was 0.972 (approximate 95% confidence interval = 0.961-0.980) but dropped to 0.936 (0.864-0.971) in 1985 with Hurricanes Elena, Kate, and Juan; to 0.909 (0.837-0.951) in 1993 with the March "Storm of the Century"; and to 0.817 (0.735-0.878) in 1995 with Hurricanes Opal, Erin, and Allison. These drops in survival probability were not catastrophic in magnitude and were detected because of the use of state-of-the-art statistical techniques and the quality of the data. Because individuals of this small population range extensively along the north Gulf coast of Florida, it was possible to resolve storm effects on a regional scale rather than the site-specific local scale common to studies of more sedentary species. This is the first empirical evidence in support of storm effects on manatee survival and suggests a cause-effect relationship. The decreases in survival could be due to direct mortality, indirect mortality, and/or emigration from the region as a consequence of storms. Future impacts to the population by a single catastrophic hurricane, or series of smaller hurricanes, could increase the probability of extinction. With the advent in 1995 of a new 25- to 50-yr cycle of greater hurricane activity, and longer term change possible with global climate change, it becomes all the more important to reduce mortality and injury

  8. Land sliding in the area of the town of Ocna Mures

    NASA Astrophysics Data System (ADS)

    Pop, Elena

    2013-04-01

    order to urgently stop the landslide phenomena. Mrs. Elena Pop, Science teacher at"Lucian Blaga" Secondary School, from Ocna Mures,Romania

  9. Metabolic Determinants and Anthropometric Indicators Impact Clinical-pathological Features in Epithelial Ovarian Cancer Patients

    PubMed Central

    Vici, Patrizia; Pizzuti, Laura; Di Lauro, Luigi; Conti, Laura; Mandoj, Chiara; Antenucci, Anna; Digiesi, Giovanna; Sergi, Domenico; Amodio, Antonella; Marchetti, Paolo; Sperati, Francesca; Valle, Mario; Garofalo, Alfredo; Vizza, Enrico; Corrado, Giacomo; Vincenzoni, Cristina; Tomao, Federica; Kayal, Ramy; Marsella, Annalise; Carosi, Mariantonia; Antoniani, Barbara; Giordano, Antonio; Maugeri-Saccà, Marcello; Barba, Maddalena

    2016-01-01

    Background: Over the last twenty years, the efforts of the scientific community devoted to the comprehension and treatment of ovarian cancer have remained poorly remunerative, with the case-fatality ratio of this disease remaining disappointedly high. Limited knowledge of the basic principles regulating ovarian carcinogenesis and factors impacting the course of disease may significantly impair our ability to intervene in early stages and lessen our expectations in terms of treatment outcomes. In the present study, we sought to assess whether metabolic factors and anthropometric indicators, i.e., pre-treatment fasting glucose and body mass index, are associated with renown cancer related prognostic factors such as tumour stage and grade at diagnosis. Materials and Methods: Study participants were 147 women diagnosed with epithelial ovarian cancer and treated with platinum based regimens and/or surgery at the Regina Elena National Cancer Institute of Rome, Italy. Glucose levels were assessed at the institutional laboratories on venous blood collected in overnight fasting conditions and prior to any therapeutic procedure. Stage was coded according to the FIGO staging system based on the results of the diagnostic workup, while tumour grade was locally assessed by an expert pathologist. Participants' characteristics were descriptively analyzed for the overall study population and in a subgroup of 70 patients for whom data on body mass index (BMI) were available. FIGO stage and grade were compared by categories of pre-treatment fasting glucose defined upon the median value, i.e., 89 mg/dl. The association of interest was tested in regression models including BMI. Results: For the overall study population, patients in the lowest category of fasting glucose were significantly more likely to exhibit a FIGO stage III-IV at diagnosis compared with their counterpart in the highest glucose category (81.3 vs 66.7%, p: 0.021). Subgroup analysis in 70 patients with BMI data

  10. PREFACE: 8th Asian International Seminar on Atomic and Molecular Physics (AISAMP)

    NASA Astrophysics Data System (ADS)

    Williams, Jim F.; Buckman, Steve; Bieske, Evan J.

    2009-09-01

    the Institute of Physics. The support from the IOPCS staff made this publication possible. The 8th AISAMP was sponsored primarily by the University of Western Australia and Curtin University of Technology, both in Perth, Western Australia, and by Journal of Physics: Conference Series. Support was also received from the International Council of Science, ICSU. Guidance and active participation from colleagues, particularly from the University of Western Australia, and Curtin University, and from the Australian National University and Melbourne University were sources of strength for the actual organization of the conference. Dr Elena Semidelova receives special thanks for her organizing abilities. We hope that this issue of Journal of Physics: Conference Series will be referenced widely and that it will strengthen ties between all scientists and their countries. Evan Bieske, Stephen Buckman and Jim F Williams Guest Editors

  11. Evolved massive stars in W33 and in GMC 23.3-0.3

    NASA Astrophysics Data System (ADS)

    Messineo, Maria; Clark, J. Simon; Figer, Donald F.; Menten, Karl M.; Kudritzki, Rolf-Peter; Najarro, Francisco; Rich, Michael; Ivanov, Valentin D.; Valenti, Elena; Trombley, Christine; Chen, Rosie; Davies, Ben; MacKenty, John W.

    2015-08-01

    We have conducted an infrared spectroscopic survey for massive evolved stars and/or clusters in the Galactic giant molecular clouds G23.3-0.3 and W33. A large number of extraordinary sub-clumps/clusters of massive stars were detected. The spatial and temporal distribution of these massive stars yields information on the star formation history of the clouds.In G23.3-0.3, we discovered a dozen massive O-type stars, one candidate luminous blue variable, and several red supergiants. The O-type stars have masses from 25 to 50 Msun and ages of 5-8 Myr, while the RSGs belong to a burst that occurred 20-30 Myr ago. Therefore, GMC G23.3-0.3 has had one of the longest known histories of star formation (20-30 Myr). GMC G23.3-0.3 is rich in HII regions and supernova remnants; we detected massive stars in the cores of SNR W41 and of SNR G22.7-0.2.In W33, we detected a few evolved O-type stars and one Wolf-Rayet star, but none of the late-type objects has the luminosity of a red supergiant. W33 is characterized by discrete sources and has had at least 3-5 Myr of star formation history, which is now propagating from west to east. While our detections of massive evolved stars in W33 are made on the west side of the cloud, several dense molecular cores that may harbor proto clusters have recently been detected on the east side of the cloud by Immer et al. (2014).Messineo, Maria; Menten, Karl M.; Figer, Donald F.; Davies, Ben; Clark, J. Simon; Ivanov, Valentin D.Kudritzki, Rolf-Peter; Rich, R. Michael; MacKenty, John W.; Trombley, Christine 2014A&A...569A..20MMessineo, Maria; Clark, J. Simon; Figer, Donald F.; Kudritzki, Rolf-Peter; Francisco, Najarro; Rich, R. Michael; Menten, Karl M.; Ivanov, Valentin D.; Valenti, Elena; Trombley, Christine; Chen, C.H. Rosie; Davies, Ben; submitted to ApJ.

  12. PREFACE: IX International Conference on Modern Techniques of Plasma Diagnostics and their Application

    NASA Astrophysics Data System (ADS)

    Savjolov, A. S.; Dodulad, E. I.

    2016-01-01

    Ministry of Education and Science contract 02.•03.21.0005 of August 27th 2013). Papers selected by the Program Committee for publishing were reviewed under control of invited editors Prof. Andrey Kukushkin, Dr. Sci. Alexander Kukushkin, Dr. Sci. Elena Baronova, Dr. Emil Dodulad. We would like to thank heartily all of the speakers, participants and organizing committee members for their contribution to the conference

  13. Structure of Suasselkä Postglacial Fault in northern Finland obtained by analysis of ambient seismic noise

    NASA Astrophysics Data System (ADS)

    Afonin, Nikita; Kozlovskaya, Elena

    2016-04-01

    the SPGF corresponds to a narrow region of low S-wave velocities surrounded by rocks with high S-wave velocities. We interpret this low velocity region as a non-healed mechanically weak fault damage zone (FDZ) remained after the last major earthquake that occurred after the last glaciation. Seismic instruments for the DAFNE/FINLAND experiment were provided by the institute of Seismology of the University of Helsinki and by the Sodankylä Geophysical Observatory. The study was partly funded by Posiva Oy and Geological Survey of Finland. DAFNE/FINLAND Working Group: Ilmo Kukkonen Pekka Heikkinen Kari Komminaho Elena Kozlovskaya Riitta Hurskainen Tero Raita Hanna Silvennoinen

  14. Water Management for Competing Uses: Environmental Flows in the Transboundary Rio Grande/Rio Bravo

    NASA Astrophysics Data System (ADS)

    Sandoval Solis, S.; McKinney, D. C.

    2011-12-01

    Introduction Due to high water demand, the scarcity of water, and the complexity of water allocation, environmental flows have not been considered as an integral part of the water management in the Rio Grande/Rio Bravo transboundary basin. The Big Bend reach is located between the cities of Presidio/Ojinaga to Amistad international reservoir, along the main stream (Fig. 1). Important environmental habitats such as the Big Bend National and State Park in the U.S., the Maderas del Carmen, Cañon de Santa Elena and Ocampo natural reserved areas in Mexico are ecologically threatened because of the lack of environmental water management policies. Several efforts have been undertaken by scientists, government agencies and NGOs to determine the environmental flows for this reach and water management policies that can provide these flows. Objective The objective of this research is to describe a water management policy that can conciliate environmental and human water uses in the Big Bend region. In other words, define a policy that can provide environmental flows without harming water supply for stakeholders or increasing flood risk, within legal and physical constraints of the system. Methodology First, the system was characterized identifying water users, hydraulic infrastructure, and water allocation according to state, federal and international regulations. Second, a hydrograph for environmental flows was proposed that mimics the hydrologic characteristics of the prior dam alteration. Third, a water planning model was constructed to evaluate alternative policies. Fourth, the water management is proposed to provide environmental restoration flows from Luis L. Leon reservoir. This policy considers mechanisms that reduce flooding and drought risks, while meting national and international water regulations. Results Three types of natural flow regimes are considered: (1) median flows aimed to provide the base flow in the region, (2) high flows to provide transversal

  15. Chicxulub Impact, Yucatan Carbonate Platform, Cretaceous-Paleogene Boundary and Paleocene-Eocene Thermal Maximum

    NASA Astrophysics Data System (ADS)

    Fucugauchi, J. U.; Perez-Cruz, L. L.

    2015-12-01

    Chicxulub formed 66 Ma ago by an asteroid impact on the Yucatan carbonate platform, southern Gulf of Mexico. Impact produced a 200 km diameter crater, platform fracturing, deformation and ejecta emplacement. Carbonate sedimentation restarted and crater was covered by up to 1 km of sediments. Drilling programs have sampled the Paleogene sediments, which record the changing sedimentation processes in the impact basin and platform. Here, results of a study of the Paleocene-Eocene sediments cored in the Santa Elena borehole are used to characterize the K/Pg and PETM. The borehole reached a depth of 504 m and was continuously cored, sampling the post-impact sediments and impact breccias, with contact at 332 m. For this study, we analyzed the section from ~230 to ~340 m, corresponding to the upper breccias and Paleocene-Eocene sediments. The lithological column, constructed from macroscopic and thin-section petrographic analyses, is composed of limestones and dolomitized limestones with several thin clay layers. Breccias are melt and basement clast rich, described as a suevitic unit. Section is further investigated using paleomagnetic, rock magnetic, X-ray fluorescence geochemical and stable isotope analyses. Magnetic polarities define a sequence of reverse to normal, which correlate to the geomagnetic polarity time scale from chrons 29r to 26r. The d13 C values in the first 20 m interval range from 1.2 to 3.5 %0 and d18 O values range from -1.4 to -4.8 %0. Isotope values show variation trends that correlate with the marine carbon and oxygen isotope patterns for the K-Pg boundary and early Paleocene. Positive carbon isotopes suggest relatively high productivity, with apparent recovery following the K-Pg extinction event. Geochemical data define characteristic trends, with Si decreasing gradually from high values in the suevites, low contents in Paleocene sediments with intervals of higher variability and then increased values likely marking the PETM. Variation trends are

  16. Chemical gradients and progressive veining in a partly serpentinized harzburgite

    NASA Astrophysics Data System (ADS)

    Schwarzenbach, Esther; Caddick, Mark; Beard, James; Bodnar, Robert

    2016-04-01

    Serpentinized ultramafic rocks constitute a major part of the oceanic lithosphere. They form when water interacts with olivine and pyroxene to produce a dense network of veins comprised of secondary minerals: Serpentine + brucite ± magnetite veins occur in olivine, Al-rich serpentine + talc veins occur in orthopyroxene, and Al-rich serpentine ± talc ± brucite veins occur at the boundary between orthopyroxene and olivine. Here, we present a detailed study on a harzburgite from the Santa Elena Ophiolite in Costa Rica that is ~30% serpentinized in order to provide new constraints on the effect of variable water (H2O) and silica (SiO2) activities on vein formation in peridotites. The studied sample records 1) mineralogical and chemical zonations in olivine-hosted veins that show a distinct pattern with increasing width of the veins (consumption of olivine), 2) varying brucite composition depending on whether or not it is associated with magnetite, and 3) chemical gradients in Si, Al, Cr, and Ca at the boundary between orthopyroxene- and olivine-hosted veins. These observed chemical variations suggest fluid mediated mass transport within and between orthopyroxene- and olivine-hosted veins. We use thermodynamic models to show that an increase in vein width and progressive evolution of olivine-hosted veins is accompanied by an increase in water-rock ratios. This is associated with the development of chemical gradients (e.g. gradients in water and silica activity) between the fluid-rich center of serpentine veins and the olivine grain boundaries as typically expressed by the abundance of brucite in the vein center and a dominance of serpentine at the boundary with olivine. The increase in water-rock ratios within the vein center also leads to the formation of magnetite from Fe-rich brucite ± Fe-rich serpentine. Mass transfer between vein core and vein rim may exist on the submicron-scale along grain boundaries of the finely intergrown serpentine-brucite mixture. We

  17. Teen theaters grapple with issues.

    PubMed

    Pugni, J L

    1984-01-01

    ). It grew out of the belief that improvisational drama, by permitting teens to portray their conflicts, is a more creative educational tool than a lecture series by adult professionals. YET productions deal with teen pregnancy, parenting, sexual responsibility, and decision making, alcohol and drug abuse, birth control, homosexuality, divorce, abortion, suicide, and sex-role stereotyping. In Dallas, Texas, Elena Love and Jim Roderick established the Teen Perspective Theater (TPT) as an arm of the Planned Parenthood of Greater Dalls education program. An acting company of 11 students aged 13-18 was drawn from public and private schools. Rehearsals began the end of July and included educational sessions as well as performance skill workshops. The presentation follows the format established by other Planned Parenthood theater groups: brief improvisational skits, in-character exchange with the audience, and personal exchange with the audience. PMID:12339888

  18. Nano-discs Destroy Cancer Cells

    SciTech Connect

    2010-01-01

    magnetic-vortex microdiscs for targeted cancer-cell destruction, by Dong-Hyun Kim, Elena A. Rozhkova, Ilya V. Ulasov, Samuel D. Bader, Tijana Rajh, Maciej S. Lesniak & Valentyn Novosad. Nature Materials (cover story), vol. 9, pp. 165 171, February 2010. http://www.nature.com/nmat/journal/v9/n2/index.html

  19. Geochemical Constraints on the pre-Cenozoic Subduction History of two Margins of the Chortis Block (Northern Central America)

    NASA Astrophysics Data System (ADS)

    Geldmacher, J.; Martens, U.; Hoernle, K.; Hauff, F.; Bogaard, P.; Kluegel, A.

    2007-12-01

    The igneous forearc basement along the Pacific coast of northern Central America (between southern Mexico and Costa Rica) comprises a highly tectonized accretionary assemblage of igneous and ultramafic rocks. Volcanic and gabbroic rocks with primitive arc geochemical signatures formed between ~100 and ~180 Ma and are interpreted to have originated by arc magmatism resulting from subduction of the Pacific/Farallon plate. Additionally, the forearc contains geochemically enriched ocean island basalt (OIB)-like units that are interpreted as accreted seamounts and islands of a 100 to ~220 Ma old hotspot track, which most likely originated from a long-extinct hotspot located in the Pacific. Based on their combined Pb, Nd, Hf isotopic compositions an affiliation of these isotopically strongly enriched rocks with the Caribbean Large Igneous Province or the Galápagos hotspot appears unlikely. Rocks of similar age and geochemistry are exposed in the Santa Elena Peninsula of Costa Rica, suggesting that the same type of forearc basement is accreted to the continental Chortis block all the way from southern Mexico to Costa Rica. In contrast, gabbroic rocks of the Motagua suture zone in central Guatemala (El Tambor accretionary complex) show depleted MORB signatures and have igneous ages of ~130Ma. These MOR Gabbros were accreted on the current northern margin of the Chortis block during subduction of proto-Caribbean crust. In contrast, geochemistry of gabbros and diorites of the Sierra de Santa Cruz (SSC) indicate medium to high K-series arc affinity and their Ar/Ar ages range from ~75 to 130 Ma. The SSC is interpreted as the western extension of the early Cuban arc that collided with the Maya block in the latest Cretaceous. Arc-derived volcanic clasts were subsequently shed into the Paleocene Sepur Formation of the Maya block. No evidence of accretion of OIB-like material was found in the Motagua suture or the SSC so far. These new data suggest that proto-Caribbean crust

  20. Hazards in determination and extrapolation of depositional rates of recent sediments

    SciTech Connect

    Isphording, W.C. . Dept. of Geology-Geography); Jackson, R.B. )

    1992-01-01

    Calculation of depositional rates for the past 250 years in estuarine sediments at sites in the Gulf of Mexico have been carried out by measuring changes that have taken place on bathymetric charts. Depositional rates during the past 50 to 100 years can similarly be estimated by this method and may be often confirmed by relatively abrupt changes at depth in the content of certain heavy metals in core samples. Analysis of bathymetric charts of Mobile Bay, Alabama, dating back to 1858, disclosed an essentially constant sedimentation rate of 3.9 mm/year. Apalachicola Bay, Florida, similarly, was found to have a rate of 5.4 mm/year. Though, in theory, these rates should provide reliable estimates of the influx of sediment into the estuaries, considerable caution must be used in attempting to extrapolate them to any depth in core samples. The passage of hurricanes in the Gulf of Mexico is a common event and can rapidly, and markedly, alter the bathymetry of an estuary. The passage of Hurricane Elena near Apalachicola Bay in 1985, for example, removed over 84 million tons of sediment from the bay and caused an average deepening of nearly 50 cm. The impact of Hurricane Frederick on Mobile Bay in 1979 was more dramatic. During the approximate 7 hour period when winds from this storm impacted the estuary, nearly 290 million tons of sediment was driven out of the bay and an average deepening of 46 cm was observed. With such weather events common in the Gulf Coast, it is not surprising that when radioactive age dating methods were used to obtain dates of approximately 7,500 years for organic remains in cores from Apalachicola Bay, that the depths at which the dated materials were obtained in the cores corresponded to depositional rates of only 0.4 mm/year, or one-tenth that obtained from historic bathymetric data. Because storm scour effects are a common occurrence in the Gulf, no attempt should be made to extrapolate bathymetric-derived rates to beyond the age of the charts.

  1. PREFACE: XIV Mexican School on Particles and Fields

    NASA Astrophysics Data System (ADS)

    Bashir, Adnan; Contreras, Guillermo; Raya, Alfredo; Tejeda-Yeomans, Maria Elena

    2011-03-01

    de Física de Altas Energías. At a personal level, we are very grateful to Dr Juan Carlos D'Olivo (President of the Red Nacional de Física de Altas Energías), Dr Pedro Mata Vázquez (Director of COECyT), Dr Ricardo Becerril Bárcenas (Director of the Institute of Physics and Mathematics, UMSNH), Dr Rigoberto Vera Mendoza (Director of the Faculty of Science, UMSNH) and Dr José Napoleón Guzmán Ávila (Coordinator of Scientific Research, UMSNH) for their invaluable support in all organizational matters, which enabled the school to become a reality. We gratefully acknowledge the help of our colleagues in the organizing committee: Alexis Aguilar, Alejandro Ayala, Wolfgang Bietenholz, Alberto Güijosa, Gabriela Murguía, Sarira Sahu (UNAM), Eduard de la Cruz Burelo, Abdel Pérez-Lorenzana (CINVESTAV), Elena Cáceres (UCOL), David Delepine (UG), Mariana Kirchbach (UASLP), Ildefonso León (UAS), Juan Carlos Arteaga-Velázquez (for his impeccable work in managing the web page of the school) and Víctor Villanueva (UMSNH). Most of them contributed to the extra work involved in refereeing the contributions submitted for this publication. Many thanks also go to all the student volunteers for the efficiency and dedication with which they carried out their duties. At the registration desk, we relied on the hard work of Xiomara Gutiérrez, Enif Gutiérrez (UMSNH) and Mara Diaz Pancardo. Several post docs and PhD students provided invaluable support in all organizational matters: Adolfo Huet, Cliffor Compeán, Rocío Bermúdez, Saúl Sánchez, Anabel Trejo, Iraís Rubalcava, Khépani Raya, José Juan González, Saúl Hernández Ortiz (UMSNH), Alfredo Galaviz, and Alan Aganza (USON). Their help in carrying out the organization of the school was essential and without their collaboration, this school would not have been the same. We also acknowledge the help of the administrative secretary Maria Esperanza Jaramillo of IFM (UMSNH). We would like to take this opportunity to thank

  2. Tanque Loma, a new late-Pleistocene megafaunal tar seep locality from southwest Ecuador

    NASA Astrophysics Data System (ADS)

    Lindsey, Emily L.; Lopez R., Eric X.

    2015-01-01

    Fossil deposits in the petroleum-rich sediments of the Santa Elena Peninsula in southwestern Ecuador contain some of the largest and best-preserved assemblages of Pleistocene megafaunal remains known from the neotropics, and thus represent an opportunity to greatly expand our knowledge of Pleistocene paleoecology and the extinction of Quaternary megafauna in this region. This paper reports data from excavations at Tanque Loma, a late-Pleistocene locality on the Santa Elena Peninsula that preserves a dense assemblage of megafaunal remains in hydrocarbon-saturated sediments along with microfaunal and paleobotanical material. The megafauna bones are concentrated in and just above a ˜0.5 m thick asphaltic layer, but occur sparsely and with poorer preservation up to 1 m above this deposit. Several meters of presumed-Holocene sediments overlying the megafauna-bearing strata are rich in bones of microvertebrates including birds, squamates, and rodents. These are interpreted as raptor assemblages. While over 1000 megafaunal bones have been identified from the Pleistocene strata at Tanque Loma, more than 85% of these remains pertain to a single species, the giant ground sloth Eremotherium laurillardi. Only five other megafauna taxa have been identified from this site, including Glossotherium cf. tropicorum, Holmesina occidentalis, cf. Notiomastodon platensis, Equus (Amerhippus) c.f. santaeelenae, and a cervid tentatively assigned to cf. Odocoileus salinae based on body size and geography. No carnivores have yet been identified from Tanque Loma, and microvertebrate remains are extremely rare in the Pleistocene deposits, although terrestrial snail shells and fragmented remains of marine invertebrates are occasionally encountered. Accelerator Mass Spectrometry radiocarbon dates on Eremotherium and cf. Notiomaston bones from within and just above the asphaltic layer yielded dates of ˜17,000 - 23,500 radiocarbon years BP. Taken together, the taxonomic composition, taphonomy

  3. The Chicxulub Multiring Impact Crater and the Cretaceous/Paleogene Boundary: Results From Geophysical Surveys and Drilling

    NASA Astrophysics Data System (ADS)

    Urrutia-Fucugauchi, J.; Perez-Cruz, Ligia

    2010-03-01

    different geophysical aerial, land and marine methods including gravity, magnetics, electromagnetics and seismic refraction and reflection. The impact lithologies and carbonate sequence have been cored as part of several drilling projects. Here we analyze the stratigraphy of Chicxulub from borehole logging data and core analyses, with particular reference to studies on CSDP Yaxcopoil-1 and UNAM Santa Elena boreholes. Analyses of core samples have examined the stratigraphy of the cover carbonate sequence, impact breccia contact and implications for impact age, K/Pg global correlations and paleoenvironmental conditions following impact. The K/Pg age for Chicxulub has been supported from different studies, including Ar/Ar dating, magnetic polarity stratigraphy, geochemistry and biostratigraphy. A Late Maastrichtian age has also been proposed for Chicxulub from studies in Yaxcopoil-1 basal Paleocene carbonates, with impact occurring 300 ka earlier predating the K/Pg boundary. This proposal calls attention to the temporal resolution of stratigraphic and chronological methods, and the need for further detailed analyses of the basal carbonate sections in existing boreholes and new drilling/coring projects. Stratigraphy of impact ejecta and basal sediments in Yaxcopoil-1 and UNAM boreholes indicates a hiatus in the basal sequence. Modeling of post- impact processes suggest erosion effects due to seawater back surge, block slumping and partial rim collapse of post-impact crater modification. Analyses of stable isotopes and magnetostratigraphic data for the Paleocene carbonate sequences in Yaxcopoil-1 and Santa Elena boreholes permit to investigate the post- impact processes, depositional conditions and age of basal sediments. Correlation of stable isotopes with the global pattern for marine carbonate sediments provides a stratigraphic framework for the basal Paleocene carbonates. The analyses confirm a K/Pg boundary age for the Chicxulub impact. References: Collins et al, 2008

  4. Long-lasting but Dim Brethren of Cosmic Flashes

    NASA Astrophysics Data System (ADS)

    2006-08-01

    Astronomers, using ESO's Very Large Telescope, have for the first time made the link between an X-ray flash and a supernova. Such flashes are the little siblings of gamma-ray bursts (GRB) and this discovery suggests the existence of a population of events less luminous than 'classical' GRBs, but possibly much more numerous. "This extends the GRB-supernova connection to X-ray flashes and fainter supernovae, implying a common origin," said Elena Pian, (INAF, Italy), lead-author of one of the four papers related to this event appearing in the 31 August issue of Nature. The event began on 18 February 2006: the NASA/PPARC/ASI Swift satellite detected an unusual gamma-ray burst, about 25 times closer and 100 times longer than the typical gamma-ray burst. GRBs release in a few seconds more energy than that of the Sun during its entire lifetime of more than 10,000 million years. The GRBs are thus the most powerful events since the Big Bang known in the Universe. ESO PR Photo 33/06 ESO PR Photo 33/06 The Field around SN2006aj The explosion, called GRB 060218 after the date it was discovered, originated in a star-forming galaxy about 440 million light-years away toward the constellation Aries. This is the second-closest gamma-ray burst ever detected. Moreover, the burst of gamma rays lasted for nearly 2,000 seconds; most bursts last a few milliseconds to tens of seconds. The explosion was surprisingly dim, however. A team of astronomers has found hints of a budding supernova. Using, among others, ESO's Very Large Telescope (VLT) in Chile, the scientists have watched the afterglow of this burst grow brighter in optical light. This brightening, along with other telltale spectral characteristics in the light, strongly suggests that a supernova was unfolding. Within days, the supernova became apparent. The observations with the VLT started on 21 February 2006, just three days after the discovery. Spectroscopy was then performed nearly daily for seventeen days, providing the

  5. Tanque Loma, a new late-Pleistocene megafaunal tar seep locality from southwest Ecuador

    NASA Astrophysics Data System (ADS)

    Lindsey, Emily L.; Lopez R., Eric X.

    2015-01-01

    Fossil deposits in the petroleum-rich sediments of the Santa Elena Peninsula in southwestern Ecuador contain some of the largest and best-preserved assemblages of Pleistocene megafaunal remains known from the neotropics, and thus represent an opportunity to greatly expand our knowledge of Pleistocene paleoecology and the extinction of Quaternary megafauna in this region. This paper reports data from excavations at Tanque Loma, a late-Pleistocene locality on the Santa Elena Peninsula that preserves a dense assemblage of megafaunal remains in hydrocarbon-saturated sediments along with microfaunal and paleobotanical material. The megafauna bones are concentrated in and just above a ˜0.5 m thick asphaltic layer, but occur sparsely and with poorer preservation up to 1 m above this deposit. Several meters of presumed-Holocene sediments overlying the megafauna-bearing strata are rich in bones of microvertebrates including birds, squamates, and rodents. These are interpreted as raptor assemblages. While over 1000 megafaunal bones have been identified from the Pleistocene strata at Tanque Loma, more than 85% of these remains pertain to a single species, the giant ground sloth Eremotherium laurillardi. Only five other megafauna taxa have been identified from this site, including Glossotherium cf. tropicorum, Holmesina occidentalis, cf. Notiomastodon platensis, Equus (Amerhippus) c.f. santaeelenae, and a cervid tentatively assigned to cf. Odocoileus salinae based on body size and geography. No carnivores have yet been identified from Tanque Loma, and microvertebrate remains are extremely rare in the Pleistocene deposits, although terrestrial snail shells and fragmented remains of marine invertebrates are occasionally encountered. Accelerator Mass Spectrometry radiocarbon dates on Eremotherium and cf. Notiomaston bones from within and just above the asphaltic layer yielded dates of ˜17,000 - 23,500 radiocarbon years BP. Taken together, the taxonomic composition, taphonomy

  6. PREFACE: Eclipse on the Coral Sea: Cycle 24 Ascending

    NASA Astrophysics Data System (ADS)

    Cally, Paul; Erdélyi, Robert; Norton

    2013-06-01

    Cycle 24 thus far from Sarbani Basu. Other invited papers presented here include an appreciation of Hinode's view of solar activity as the cycle rises by Toshifumi Shimizu; a first taxonomy of magnetic tornadoes and chromospheric swirls by Sven Wedemeyer {\\it et al}; an analysis of Hinode/EIS observations of transient heating events; a timely re-examination of solar dynamo theory by Paul Charbonneau; an exciting teaser for the solar potential of the Murchison Widefield Array now operating in Western Australia by Steven Tingay {\\it et al}; an overview and critique of the state of nonlinear force-free magnetic field extrapolation theory and practice by Mike Wheatland and Stuart Gilchrist; and a masterful review of atmospheric MHD wave coupling to the Sun's internal p-mode oscillations by Elena Khomenko and Irantzu Calvo Santamaria. The many contributed papers published here are no less exciting. All papers have been refereed to a high standard. The editors thank all the referees, drawn both from conference attendees and the wider community, who have taken their tasks very seriously and provided very detailed and helpful reports. Nearly all contributions have been substantially improved by the process. We must also thank our financial sponsors. Both the Global Oscillations Network Group (GONG) and LWS/SDO were generous in their support, as were the School of Mathematical Sciences and the Monash Centre for Astrophysics (MoCA) at Monash University, Melbourne, and the Centre for Astronomy at James Cook University, Townsville. The Local Organizing Committee and the many students who assisted before and during the conference also deserve high praise for facilitating such a memorable meeting. Paul Cally, Robert Erdélyi and Aimee Norton Conference photograph

  7. Environmental Challenges Related to the Acquisition of the Trans Carpathian Wide Angle Reflection and Refraction Line

    NASA Astrophysics Data System (ADS)

    Dragut, Dorina-Alina; Schultz, Gehrig; Mocanu, Victor; Stephenson, Randell; Janik, Tomasz; Starostenko, Vitaly

    2015-04-01

    technological targets while managing to obey all legal rules and regulations imposed by the decision makers. We finally demonstrate that there is no danger for the environment by this classic form of seismic wave generation if all restrictions, health and safety rules are strictly complied with and are continuously monitored. This project could not be carried out successfully without significant support from: Mark Sturgess and Mark Wigley of Hunt Oil of Romania; Alex Stefan and Radita Bandrabur of Prospectiuni; Vasile Ionel Catana and Albert Ion Ranete of Maxam Romania; Alissa Ionescu of Lukoil Romania; Gheorghe Dutu, Claudia Raileanu and Elena Caramalau of the National Agency of Mineral Resources of Romania; Laszlo Klarick of the Romanian Senate. This work has been supported from the strategic grant POSDRU/159/1.5/S/133391, Project "Doctoral and Post-doctoral programs of excellence for highly qualified human resources training for research in the field of Life sciences, Environment and Earth Science" cofinanced by the European Social Fund within the Sectorial Operational Program Human Resources Development 2007 - 2013.

  8. Crushed aggregates for roads and their properties for frost protection

    NASA Astrophysics Data System (ADS)

    Kuznetsova, Elena; Willy Danielsen, Svein

    2015-04-01

    Crushed aggregates for roads and their properties for frost protection Elena Kuznetsova, NTNU and Svein Willy Danielsen, SINTEF With natural (fluvial, glaciofluvial) sand/gravel resources being rapidly depleted in many countries, the last decade has seen a significant trend towards using more alternative materials for construction purpose. In Norway the development and implementation of crushed aggregate technology has been the most important way to get around the problem with increased resource scarcity. Today Norway is one the European countries with the highest percentage of crushed/manufactured aggregates. A crushed product will reveal a different particle size distribution, a sharper, more angular particle shape, and not least - a significantly different mineral composition. The latter may often be characterised by more polymineral composition, and it will also much more depend on the local bedrock. When handled with care and knowledge, these differences can give the user a lot of new opportunities relating to materials design. Norwegian road construction practice has changed significantly during the last 40 years due to the replacement of gravel by crushed rock materials in the granular layers of the pavements. The use of non-processed rock materials from blasting was allowed in the subbase layer until 2012. This was a reason for a lot of problems with frost heaving due to inhomogeneity of this material, and in practice it was difficult to control the size of large stones. Since 2012 there is a requirement that rock materials for use in the subbase layer shall be crushed (Handbook N200, 2014). During the spring 2014 The Norwegian Public Roads Administration introduced a new handbook with requirements for roads construction in Norway, including new specifications for the frost protection layer. When pavements are constructed over moist and/or frost susceptible soils in cold and humid environments, the frost protection layer also becomes a very important part

  9. Are population dynamics of shorebirds affected by El Niño/Southern Oscillation (ENSO) while on their non-breeding grounds in Ecuador?

    NASA Astrophysics Data System (ADS)

    O'Hara, Patrick D.; Haase, Ben J. M.; Elner, Robert W.; Smith, Barry D.; Kenyon, Jamie K.

    2007-08-01

    Declines in avian populations are a global concern, particularly for species that migrate between Arctic-temperate and tropical locations. Long-term population studies offer opportunities to detect and document ecological effects attributable to long-term climatic cycles such as the El Niño/Southern Oscillation (ENSO). In this study, we report possible population-level effects of such climatic cycles on shorebird species that use two non-breeding season sites in Ecuador (Santa Elena peninsula area, near La Libertad). During our 9-year study period (1991/1992-1999/2000), there was a particularly strong ENSO warm phase event during 1997/1998. Population trend data for three species of shorebird, Western Sandpipers ( Calidris mauri), Semipalmated Sandpipers ( C. pusilla), and Least Sandpipers ( C. minutilla), indicated abundances generally declined during the 1990s, but there was an increase in the proportion of first-year birds and their abundance in the years following the 1997/1998 ENSO warm phase. There was some support for variation in apparent survivorship associated with the onset of the ENSO warm phase event in our population models, based on capture-mark-recapture data. Following the 1997/1998 ENSO event onset, individuals for all three species were significantly lighter during the non-breeding season ( F1,3789 = 6.6, p = 0.01). Least-squares mean mass (controlling for size, sex and day of capture) for first-year birds dropped significantly more than for adults following ENSO (first-year mass loss = 0.69 ± 0.12 g; adult mass loss = 0.34 ± 0.11 g, F1,3789 = 5.31, p = 0.021), and least-squares mean mass dropped most during the period when sandpipers prepare for northward migration by gaining mass and moulting into breeding plumage. Least Sandpipers may have declined the most in mean mass following ENSO (0.76 ± 0.19 g), whereas Semipalmated Sandpipers were 0.52 ± 0.12 g lighter, and Western Sandpipers 0.40 ± 0.13 g lighter, but overall variation among

  10. Environmental Studies in the Boreal Forest Zone: Summer IPY Institute at Central Boreal Forest Reserve, Fedorovskoe, Tver area, Russia (14-28 August, 2007)

    NASA Astrophysics Data System (ADS)

    Sparrow, E. B.; Kurbatova, Y.; Groisman, P.; Alexeev, V.

    2007-12-01

    Reserve were arranged to highlight various aspects of wetland studies and management in the European taiga environment. As part of the GLOBE (Global Learning and Observations to Benefit the Environment) IPY "Seasons and Biomes" project led by Dr. Elena Sparrow, the K-12 teachers were instructed in and practiced existing GLOBE protocols as well as new protocols created specifically for the Seasons and Biomes project to study interannual variability of seasons in their own biomes. These teachers will in turn engage their students in Earth System scientific research as a way of teaching and learning science as well as involving them in the IPY. Support for the Summer Institute was provided by many institutions and organizations from the United States (IARC, NASA, NSF, University of Maryland, GLOBE USA, and Hydrology Science and Services Corporation), Russia (Central Biosphere Forest Reserve, A.N. Severtsov Institute for Ecology and Evolution of the Russian Academy of Sciences, Southern Federal University, Russian Foundation for Basic Research, GLOBE Russia, and non-profit organization "Transparent World"), Japan (National Institute for Environmental Studies), China (Beijing Normal University), Germany (Friedrich-Schiller-University) and the Circumpolar North (University of the Arctic).

  11. Quality of Water and Sediment in Streams Affected by Historical Mining, and Quality of Mine Tailings, in the Rio Grande/Rio Bravo Basin, Big Bend Area of the United States and Mexico, August 2002

    USGS Publications Warehouse

    Lambert, Rebecca B.; Kolbe, Christine M.; Belzer, Wayne

    2008-01-01

    The U.S. Geological Survey, in cooperation with the International Boundary and Water Commission - U.S. and Mexican Sections, the National Park Service, the Texas Commission on Environmental Quality, the Secretaria de Medio Ambiente y Recursos Naturales in Mexico, the Area de Proteccion de Flora y Fauna Canon de Santa Elena in Mexico, and the Area de Proteccion de Flora y Fauna Maderas del Carmen in Mexico, collected samples of stream water, streambed sediment, and mine tailings during August 2002 for a study to determine whether trace elements from abandoned mines in the area in and around Big Bend National Park have affected the water and sediment quality in the Rio Grande/Rio Bravo Basin of the United States and Mexico. Samples were collected from eight sites on the main stem of the Rio Grande/Rio Bravo, four Rio Grande/Rio Bravo tributary sites downstream from abandoned mines or mine-tailing sites, and 11 mine-tailing sites. Mines in the area were operated to produce fluorite, germanium, iron, lead, mercury, silver, and zinc during the late 1800s through at least the late 1970s. Moderate (relatively neutral) pHs in stream-water samples collected at the 12 Rio Grande/Rio Bravo main-stem and tributary sites indicate that water is well mixed, diluted, and buffered with respect to the solubility of trace elements. The highest sulfate concentrations were in water samples from tributaries draining the Terlingua mining district. Only the sample from the Rough Run Draw site exceeded the Texas Surface Water Quality Standards general-use protection criterion for sulfate. All chloride and dissolved solids concentrations in water samples were less than the general-use protection criteria. Aluminum, copper, mercury, nickel, selenium, and zinc were detected in all water samples for which each element was analyzed. Cadmium, chromium, and lead were detected in samples less frequently, and silver was not detected in any of the samples. None of the sample concentrations of

  12. Petrography and Geochemistry of the Zamora Batholith in the south of the sub-Andean zone (Ecuador)

    NASA Astrophysics Data System (ADS)

    Villares, F. M.

    2013-05-01

    The Zamora Batholith is an intrusive complex that is located in the extreme south-east of Ecuador. It has dimensions of 200 x 50 km approximately. It is mainly located in the Zamora Chinchipe province from which it takes its name. This study consisted in the petrographic and geochemical characterization of the Zamora Batholith in the area covered by 1: 50,000 geological maps of Centro Shaime, Guayzimi, Paquisha, Los Encuentros and El Pangui. Fieldwork was done by the "Proyecto Mapeo Geológico escala 1:50.000 (zonas prospectivas mineras)" of the Instituto Nacional de Investigación Geológico, Minero, Metalúrgico of Ecuador. This research was performed with 59 thin sections and 10 whole - rock chemical analysis done in the C.I.C of the Granada University. The Zamora Batholith intrudes Triassic to Jurassic volcanic rocks. It is overlaid by sandstones of the Hollin Formation of the Upper Aptian age and shale and limestone from the Napo Formation. Post-cretaceous deposits of ash and lava flows of andesitic to rhyolitic compositions cover the batholith. The petrography of the Zamora Batholith ranges from tonalite to monzogranite with the same qualitative mineralogy. The rocks are composed by different proportions of plagioclase, amphibole, feldspar K, quartz, biotite, opaque, pyroxene and epidote, as accessory minerals has zircon, sphene and apatite. To the south of the Conguime and Guayzimi towns, the dominant petrography is medium to coarse grained amphibole granodiorite with tonalitic and monzogranitic subordinates. To the north monzogranites are dominant rocks and subordinate granodiorites. To the East of Santa Elena the sienogranites are associated with El Hito porphyritic granite that intrudes to Zamora Batholith. Frequently the batholith has propylitic alteration; which produces a primary association of chlorite, epidote, calcite and pyrite. The granitoids have dioritic to granitic compositions (60.09 to 73.6 wt.% SiO2) and are I - type, medium to high-K calc

  13. Oceanic terranes of S-Central America - 200 Million years of accretion history recorded on the W-edge of the Caribbean Plate.

    NASA Astrophysics Data System (ADS)

    Baumgartner, P. O.; Flores, K.; Bandini, A.; Buchs, D.; Andjic, G.; Baumgartner-Mora, C.

    2012-04-01

    The W-edge of the Caribbean Plate is characterized by two major basement domains, separated today by a SW-NE trending diffuse fault zone located SE of the Nicoya Peninsula (Costa Rica) and possibly connecting with the Hess Escarpment. To the NW, in the area originally called "Chortis Block", oceanic island/arc basements range in age from Late Triassic to Early Cretaceous and form a complicated puzzle of geodynamic units. To the SE of this fault line, no age older than Turonian-Santonian (90-85 Ma) is known. This area only represents the trailing edge of the Caribbean Large Igensous Procince (CLIP). The Mesquito Composite Oceanic Terrane (MCOT) comprises the southern half of the "Chortis Block", classically considered as a continental fragment of N-America. The MCOT is defined by isolated outcrops of ultramafic, mafic oceanic/arc rocks, and radiolarites of Late Triassic, Jurassic and Early Cretaceous age: Rhaetian (latest Triassic) radiolarites found in the El Castillo Mélange (S-MCOT: S-Nicaragua/N- Costa Rica). They are associated with blocks of OIB-metabasalts. These rocks document the presence of a Late Triassic oceanic basement that must have been the substrate of the 174 -177 Ma old (Early/Middle Jurassic) Petit-Spot-like alkaline volcanics that intruded Early Jurassic radiolarites. These rocks form tectonic slivers in the middle Cretaceous Santa Rosa Accretionary Complex (relative autochthonous of the Santa Elena ultramafic unit, N-Costa Rica). The oldest rocks of the Nicoya Complex s. str. (NW-Nicoya Peninsula, Costa Rica) are Bajocian (Middle Jurassic) radiolarites, that occur as blocks magmatically engulfed in plateau-type basalts and intrusives that range in age thoughout the pre-Campanian Cretaceous (130-83 Ma). Middle and Late Jurassic metaradiolarites occur as blocks in the Siuna Serpentinite Médange (NE-Nicaragua), along with High-p, arc-related mafics. We envision an oceanic arc that collided in the latest Jurassic with the Agua Fria arc system

  14. PREFACE: International Conference on Image Optimisation in Nuclear Medicine (OptiNM)

    NASA Astrophysics Data System (ADS)

    Christofides, Stelios; Parpottas, Yiannis

    2011-09-01

    research and results to more than 150 participants from 14 countries. During the conference, exhibitors presented medical equipment used in nuclear medicine. We gratefully acknowledge the financial support of the Cyprus Research Promotion Foundation, the European Regional Development Fund and the Cyprus Biomedical Research Foundation. Also, we appreciate the support of the various local sponsors listed in the conference programme. We would like to express our sincere thanks and gratitude to the organising committee, the scientific committee and the supporting professional organizations for the success of the conference. We also thank all of speakers for their excellent contributions, all the participants for their input, and the exhibitors for their valuable presentations. Special thanks go to Demetris Kaolis, Maria Christofidou, Isabelle Chrysanthou, Charalambos Yiannakkaras, Ourania Demetriadou, and Elena Christofidou for their invaluable contribution to the conference. The conference volume consists of 26 selected proceedings papers. We would like to thank all of the authors for their time and genuine efforts and the reviewers for their fruitful comments. The Conference Chairpersons Stelios Christofides and Yiannis Parpottas

  15. Cytomegalovirus reactivation after autologous stem cell transplantation in myeloma and lymphoma patients: A single-center study

    PubMed Central

    Marchesi, Francesco; Pimpinelli, Fulvia; Gumenyuk, Svitlana; Renzi, Daniela; Palombi, Francesca; Pisani, Francesco; Romano, Atelda; Spadea, Antonio; Papa, Elena; Canfora, Marco; Ensoli, Fabrizio; Mengarelli, Andrea

    2015-01-01

    AIM: To determine the incidence of and the risk factors for cytomegalovirus (CMV) symptomatic infection and end-organ disease after autologous stem cell transplantation (ASCT). METHODS: A total of 327 consecutive non CD34+ selected autografts performed from the Hematology and Stem Cell Transplantation Unit of Regina Elena National Cancer Institute of Rome (Italy) in the period comprised between January 2003 to January 2015, were reviewed. Over the 327 autografts, 201 were performed in patients with multiple myeloma, whereas the remaining 126 in patients affected by non-Hodgkin’s lymphoma and Hodgkin’s lymphoma. The patients who underwent an ASCT for an acute leukemia (n = 20) in the same period were excluded from this analysis. CMV DNA load in the blood has been determined by polymerase-chain reaction in the case of a clinical suspicion of reactivation, therefore, no routine monitoring strategy was adopted. In the presence of signs and symptoms of CMV reactivation an antiviral treatment was performed. RESULTS: Overall, 36 patients (11%) required a specific antiviral treatment for a symptomatic CMV reactivation (n = 32) or an end-organ disease (n = 4). We observed 20 and 16 cases of CMV reactivation among lymphoma (16%) and myeloma patients (8%), respectively. Among cases of end-organ disease, 3 were diagnosed as interstitial pneumonia and one remaining case as hemorrhagic enteritis. All cases of CMV reactivation were observed in IgG seropositive patients, with no documented cases of primary CMV infection. All patients were treated with a specific antiviral therapy, with a global rate of hospitalization of 55%; four patients received intravenous immunoglobulins. Transplant-related mortality was significantly higher in patients who experienced a CMV reactivation (8.4% ± 4.7% vs 1.7% ± 0.8%; P = 0.047). In univariate analysis, a pre-transplant HBcIgG seropositivity, a diagnosis of T-cell non-Hodgkin’s lymphoma and higher median age at transplant were

  16. YRMR Organizing Committee

    NASA Astrophysics Data System (ADS)

    2011-02-01

    Elena Cannuccia graduated in physics at the University of Rome Tor Vergata in the Condensed Matter Theory Group (1http://www.fisica.uniroma2.it/?cmtheo-group/). She is currently finishing her PhD in the same research group. Her research project focused on the investigation of the role played by electron-phonon coupling on the electronic properties of polymers. Through completing her research she made a contribution to the development of YAMBO (http://www.yambo-code.org/), a FORTRAN/C code for Many-Body calculations in solid state and molecular physics. Luca Mazzaferro is a PhD student at the University of Rome "Tor Vergata". He works on the ATLAS experiment and is a member of the ATLAS Calibration group. He gratuated from the University of Rome "La Sapienza" in May 2010, and worked with the local ATLAS group, developing the LCDS routines for the calibration of the ATLAS MDT Chambers. This software is now a standard for managing the calibration analysis of ATLAS chambers. He also works in the administrative group of "Tor Vergata" grid-computing farm. Marina Migliaccio graduated in Universe Science at the University of Rome "Tor Vergata", and she is now a PhD student in Astronomy. During her PhD she has spent eight months as a visiting scholar at the Kavli Institute for Cosmology in Cambridge (UK). The focus of her research is precision cosmology. In this context, her work so far has been devoted to the study of Cosmic Microwave Background (CMB) radiation in order to constrain cosmological models and early universe physics. She has analyzed the BOOMERanG balloon-borne experiment data, searching for a primordial non-Gaussian signature. Since 2008, she has been involved in the Planck mission Core Cosmology program, where her major contribution deals with measuring the statistical properties of CMB intensity and polarization fields in view of realistic (both instrumental and astrophysical) effects. Davide Pietrobon graduated in Astronomy, sharing the PhD between the

  17. Assessment of chemical element migration in soil-plant complex of Urov endemic localities of East Transbaikalia

    NASA Astrophysics Data System (ADS)

    Vadim V., Ermakov; Valentina, Danilova; Sabsbakhor, Khushvakhtova; Aklexander, Degtyarev; Sergey, Tyutikov; Victor, Berezkin; Elena, Karpova

    2014-05-01

    - Salicaceae) and selenium (needles of larch - Larix sibirica L.) were found among the plants. References 1. Ermakov V., Jovanovic L. Characteristics of selenium migration in soil-plant system of East Meshchera and Transbaikalia// J. Geochem. Explor., 2010. Vol. 107, 200-205. 2. Ermakov Vadim, Jovanovic Larisa, Berezkin Victor, Tyutikov Sergey, Danilogorskaya Anastasiya, Danilova Valentina, Krechetova Elena, Degtyarev Alexander, Khushvakhtova Sabsbakhor. Chemical assessment of soil and water of Urov biogeochemical provinces of Eastern Transbaikalia// Ecologica, 2012. Vol. 19, 69, 5-9. 3. Ermakov V.V., Tuytikov S.F. Khushvakhtova S.D., Danilova V.N. Boev V.A., Barabanschikova R.N., Chudinova E.A. Peculiarities of quantitative determination of selenium in biological materials// Bulletin of the Tyumen State University Press, 2010, 3, 206-214. Supported by the Russian Foundation for Basic Research, grant number 12-05-00141a.

  18. PREFACE: International Conference on Many Particle Spectroscopy of Atoms, Molecules, Clusters and Surfaces

    NASA Astrophysics Data System (ADS)

    Dowek, Danielle; Bennani, Azzedine; Lablanquie, Pascal; Maquet, Alfred

    2008-12-01

    ) - Université Paris-Sud 11, Orsay Danielle DOWEK (co-Chair) - Université Paris-Sud 11, Orsay Bernadette ROME (Secretary) - Université Paris-Sud 11, Orsay Elena Magdalena STAICU CASAGRANDE - Université Paris-Sud 11, Orsay Alain HUETZ - Université Paris-Sud 11, Orsay Laurence MALEGAT - Université Paris-Sud 11, Orsay Michael MEYER - Université Paris-Sud 11, Orsay Adnan NAJA - Université Paris-Sud 11, Orsay Yan PICARD - Université Paris-Sud 11, Orsay Lidija ANDRIC - Université Pierre et Marie Curie, Paris Alain DUBOIS - Université Pierre et Marie Curie, Paris Pascal LABLANQUIE - Université Pierre et Marie Curie, Paris Alfred MAQUET - Université Pierre et Marie Curie, Paris Francis PENENT - Université Pierre et Marie Curie, Paris Patricia SELLES - Université Pierre et Marie Curie, Paris Marc SIMON - Université Pierre et Marie Curie, Paris Conference photograph

  19. Low-metallicity Star Formation (IAU S255)

    NASA Astrophysics Data System (ADS)

    Hunt, Leslie K.; Madden, Suzanne C.; Schneider, Raffaella

    2009-01-01

    'Shea and Michael L. Norman; 16. Damped Lyα systems as probes of chemical evolution over cosmological timescales Miroslava Dessauges-Zavadsky; 17. Connecting high-redshift galaxy populations through observations of local damped Lyman alpha dwarf galaxies Regina E. Schulte-Ladbeck; 18. Chemical enrichment and feedback in low metallicity environments: constraints on galaxy formation Francesca Matteucci; 19. Effects of reionization on dwarf galaxy formation Massimo Ricotti; 20. The importance of following the evolution of the dust in galaxies on their SEDs A. Schurer, F. Calura, L. Silva, A. Pipino, G. L. Granato, F. Matteucci and R. Maiolino; 21. About the chemical evolution of dSphs (and the peculiar globular cluster ωCen) Andrea Marcolini and Annibale D'Ercole; 22. Young star clusters in the small Magellanic cloud: impact of local and global conditions on star formation Elena Sabbi, Linda J. Smith, Lynn R. Carlson, Antonella Nota, Monca Tosi, Michele Cignoni, Jay S. Gallagher III, Marco Sirianni and Margaret Meixner; 23. Modeling the ISM properties of metal-poor galaxies and gamma-ray burst hosts Emily M. Levesque, Lisa J. Kewley, Kirsten Larson and Leonie Snijders; 24. Dwarf galaxies and the magnetisation of the IGM Uli Klein; Session III. Explosive Events in Low-Metallicity Environments: 25. Supernovae and their evolution in a low metallicity ISM Roger A. Chevalier; 26. First stars - type Ib supernovae connection Ken'ichi Nomoto, Masaomi Tanaka, Yasuomi Kamiya, Nozomu Tominaga and Keiichi Maeda; 27. Supernova nucleosynthesis in the early universe Nozomu Tominaga, Hideyuki Umeda, Keiichi Maeda, Ken'ichi Nomoto and Nobuyuki Iwamoto; 28. Powerful explosions at Z = 0? Sylvia Ekström, Georges Meynet, Raphael Hirschi and André Maeder; 29. Wind anisotropy and stellar evolution Cyril Georgy, Georges Meynet and André Maeder; 30. Low-mass and metal-poor gamma-ray burst

  20. Low-Metallicity Star Formation: From the First Stars to Dwarf Galaxies

    NASA Astrophysics Data System (ADS)

    Hunt, Leslie K.; Madden, Suzanne C.; Schneider, Raffaella

    2008-12-01

    'Shea and Michael L. Norman; 16. Damped Lyα systems as probes of chemical evolution over cosmological timescales Miroslava Dessauges-Zavadsky; 17. Connecting high-redshift galaxy populations through observations of local damped Lyman alpha dwarf galaxies Regina E. Schulte-Ladbeck; 18. Chemical enrichment and feedback in low metallicity environments: constraints on galaxy formation Francesca Matteucci; 19. Effects of reionization on dwarf galaxy formation Massimo Ricotti; 20. The importance of following the evolution of the dust in galaxies on their SEDs A. Schurer, F. Calura, L. Silva, A. Pipino, G. L. Granato, F. Matteucci and R. Maiolino; 21. About the chemical evolution of dSphs (and the peculiar globular cluster ωCen) Andrea Marcolini and Annibale D'Ercole; 22. Young star clusters in the small Magellanic cloud: impact of local and global conditions on star formation Elena Sabbi, Linda J. Smith, Lynn R. Carlson, Antonella Nota, Monca Tosi, Michele Cignoni, Jay S. Gallagher III, Marco Sirianni and Margaret Meixner; 23. Modeling the ISM properties of metal-poor galaxies and gamma-ray burst hosts Emily M. Levesque, Lisa J. Kewley, Kirsten Larson and Leonie Snijders; 24. Dwarf galaxies and the magnetisation of the IGM Uli Klein; Session III. Explosive Events in Low-Metallicity Environments: 25. Supernovae and their evolution in a low metallicity ISM Roger A. Chevalier; 26. First stars - type Ib supernovae connection Ken'ichi Nomoto, Masaomi Tanaka, Yasuomi Kamiya, Nozomu Tominaga and Keiichi Maeda; 27. Supernova nucleosynthesis in the early universe Nozomu Tominaga, Hideyuki Umeda, Keiichi Maeda, Ken'ichi Nomoto and Nobuyuki Iwamoto; 28. Powerful explosions at Z = 0? Sylvia Ekström, Georges Meynet, Raphael Hirschi and André Maeder; 29. Wind anisotropy and stellar evolution Cyril Georgy, Georges Meynet and André Maeder; 30. Low-mass and metal-poor gamma-ray burst

  1. Multi-criteria indexes to evaluate the effects of repeated organic amendment applications on soil quality

    NASA Astrophysics Data System (ADS)

    Obriot, Fiona; Stauffer, Marie; Goubard, Yolaine; Vieuble-Gonod, Laure; Revallier, Agathe; Houot, Sabine

    2015-04-01

    value of data set permits to normalized the data set, a principal component analysis was used for each data in order to explain the variability and at the end, the combination of all indicators selected and weighted by anterior steps defined SQI. Results The repeated applications of organic amendments increased soil fertility and microbial activity compared to control treatments as revealed by the corresponding indices. The largest improvements were observed in treatments that increased more the soil organic matter content (GWS, FYM and BIO) compared to MSW. The regular application of OWP did not significantly modify the SQI dedicated to biodiversity. A recent additional application did not lead to significant supplementary effect on the SQI. Physical properties, productivity and pollution index need more time to be explained. Conclusion The use of SQI allows the aggregation of different indicators to evaluate specific ecosystem services (soil fertility, soil biodiversity, vegetal productivity…) and disservices (heavy metal contamination) of the introduction of OWP in soil. Separate indices made possible to assess different aspects of soil quality separately. Other field results on the effect of OWP application would make possible to relate more precisely the observed effects to the SQIs. References [a] Velasquez, Elena, Patrick Lavelle, et Mercedes Andrade. « GISQ, a Multifunctional Indicator of Soil Quality ». Soil Biology & Biochemistry 39, no 12 (décembre 2007): 3066 80. doi:10.1016/j.soilbio.2007.06.013.

  2. Late Cretaceous - Paleogene forearc sedimentation and accretion of oceanic plateaus and seamounts along the Middle American convergent margin (Costa Rica)

    NASA Astrophysics Data System (ADS)

    Baumgartner, Peter O.; Baumgartner-Mora, Claudia; Andjic, Goran

    2016-04-01

    The Late Cretaceous-Paleogene sedimentation pattern in space and time along the Middle American convergent margin was controlled by the accretion of Pacific plateaus and seamounts. The accretion of more voluminous plateaus must have caused the temporary extinction of the arc and tectonic uplift, resulting in short lived episodes of both pelagic and neritic biogenic sedimentation. By the Late Eocene, shallow carbonate environments became widespread on a supposed mature arc edifice, that is so far only documented in arc-derived sediments. In northern Costa Rica forearc sedimentation started during the Coniacian-Santonian on the Aptian-Turonian basement of the Manzanillo Terrane. The arrival and collision of the Nicoya Terrane (a CLIP-like, 139-83 Ma Pacific plateau) and the Santa Elena Terrane caused the extinction of the arc during late Campanian- Early Maastrichtian times, indicated by the change to pelagic limestone sedimentation (Piedras Blancas Formation) in deeper areas and shallow-water rudistid - Larger Benthic Foraminfera limestone on tectonically uplifted areas of all terranes. Arc-derived turbidite sedimentation resumed in the Late Maastrichtian and was again interrupted during the Late Paleocene - Early Eocene, perhaps due to the underplating of a yet unknown large seamount. The extinction of the arc resulted in the deposition of the siliceous pelagic Buenavista Formation, as well as the principally Thanetian Barra Honda carbonate platform on a deeply eroded structural high in the Tempisque area. In southern Costa Rica the basement is thought to be the western edge of the CLIP. It is Santonian-Campanian in age and is only exposed in the southwestern corner of Herradura. Cretaceous arc-forearc sequences are unknown, except for the Maastrichtian-Paleocene Golfito Terrane in southeastern Costa Rica. The distribution and age of shallow/pelagic carbonates vs. arc-derived detrital sediments is controlled by the history of accretion of Galápagos hot spot

  3. Middle Cretaceous to Oligocene rise of the Middle American landbridge - documented by south-eastwards younging shallow water carbonates

    NASA Astrophysics Data System (ADS)

    Baumgartner-Mora, Claudia; Baumgartner, Peter O.; Barat, Flore

    2013-04-01

    Basements of Southern Central America are oceanic in origin, including the southern half of the classical "Chortis Block" formed by subduction/accretion mélanges named Mesquito Composite Oceanic Terrane (MCOT). The rise of these oceanic basements into the photic zone and eventual emergence was controlled by convergent, collision tectonics, and/or arc development. In this context, shallow carbonate palaeo-environments were short-lived and formed not only on uplifted basements and arcs, but also on (now accreted) volcanic edifices of Pacific oceanic seamounts. From Northern Nicaragua (NW) to Eastern Panama (SE) we observe a systematic younging of the first shallow water carbonate facies encroaching on basements and/or older deep-water formations: In the Siuna area (NE-Nicaragua) Aptian-Albian shallow water limestones dated by rudists and Orbitolina texana rest unconformably on the Jurassic/Early Cretaceous Siuna Serpentinite Mélange, part of the MCOT. In N-Costa Rica, the assembly of several terranes (Santa Elena Ultramafic Unit, Nicoya Complex s. s., Matambu and Manzanillo Terranes) is overlapped by Late Campanian-Maastrichtian shallow water facies dated by rudists and Larger Foraminifera, such as Pseudorbitoides rutteni, Pseudorbitoides israelski, Sulcoperculina sp. and Sulcoperculina globosa. Reworked Campanian-Maastrichtian shallow water material including Larger Foraminifera was found in the Herradura Promontory (central Pacific coast of Costa Rica). It could be derived from an accreted seamount. No shallow carbonates are known so far from the early Palaeocene. The Tempisque Basin (N-Costa Rica) hosts the Barra Honda carbonate Platform (originally >900 km2) dated as late Palaeocene (Thanetian) by planktonic Foraminifera, 87Sr / 86Sr ratios and Ranikothalia spp. Other late Palaeocene shallow carbonates documented in S-Costa Rica/W-Panama (Quepos, Burica) are interpreted as insular carbonate shoals (atolls?) on now accreted seamounts. To the SE of the S

  4. The Crustal Structure of the Central Iberian Zone form the ALCUDIA Deep Seismic Reflection transect.

    NASA Astrophysics Data System (ADS)

    Martí, D.

    2009-04-01

    The ALCUDIA transect is a 250 km long, vertical incidence Vibroseis seismic reflection profile acquired in 2007. It extends IBERSEIS transect to the N and NE imaging from within the Ossa Morena Zone (OMZ) to the Central Iberian Zone (CIZ) from 20 km south of Fuenteovejuna in the S to Toledo in the N. The southern part of the transect samples the suture zone between the OMZ and the CIZ. It continues in a N-NE direction crossing the Pedroches batholith and a series of relatively long wavelength synclinal structures limited by sub-vertical and relatively narrow folds (e.g. the Almaden syncline, the Alcudia anticline). Lower Paleozoic quartzites and slates cover most of these synclynal structures. Farther to the N, the profile crosses several major faults system (e.g Santa Elena and Toledo) . The acquisition parameters, 35 m station spacing, 70 m VP spacing resulted in a 60-90 fold high resolution seismic reflection image. A 20 s long Vibroseis sweep with frequencies between 8-120 Hz was recorded by a 400 station recording cable a long a 14 km long split spread configuration. The new processing sequence significantly increased the signal-to-noise ratio. It includes: crooked line geometry, geometrical divergence corrections, elevation statics, surface-wave attenuation, surface consistent zero-phase spiking deconvolution, time-variant band pass filtering., refraction and residual static corrections velocity analysis, NMO, surface consistent amplitude balancing, CMP stacking F-X deconvolution. The seismic image reveals the geometry of the suture between the OMZ and the CIZ. This is a reworked transpression suture (the Badajoz-Cordoba Sherar zone) includes the Central Unit (CU) as a north dipping wedge structure limited by two bands of reflectors that reach the middle crust (5 s twtt). This CU includes amphibolites with some oceanic affinity, orthogneisses, paragneisses, schists and minor amounts of peridotites. To the north the upper crust shows a moderate reflectivity

  5. Electrochemical oxygen pumps. Final CRADA report.

    SciTech Connect

    Carter, J. D. Noble, J.

    2009-10-01

    All tasks of the Work Plan of ISTC Project 2277p have been completed, thus: (1) techniques of chemical synthesis were developed for more than ten recipes of electrolyte based on cerium oxide doped with 20 mole% of gadolinium (CeGd)O{sub 2}, doped by more than 10 oxide systems including 6 recipes in addition to the Work Plan; (2) electric conductivity and mechanical strength of CeGd specimens with additions of oxide systems were performed, two candidate materials for the electrolyte of electrochemical oxygen pump (pure CeGd and CeGd doped by 0.2 wt% of a transition metal) were chosen; (3) extended studies of mechanical strength of candidate material specimens were performed at room temperature and at 400, 600, 800 C; (4) fixtures for determination of mechanical strength of tubes by external pressure above 40 atmospheres at temperature up to 700 C were developed and fabricated; and (5) technology of slip casting of tubes from pure (Ce,Gd)O{sub 2} and of (Ce,Gd)O{sub 2} doped by 0.2 wt% of a transition metal, withstanding external pressure of minimum 40 atmospheres at temperature up to 700 C was developed, a batch of tubes was sent for testing to Argonne National Laboratory; (6) technology of making nanopowder from pure (Ce,Gd)O{sub 2} was developed based on chemical synthesis and laser ablation techniques, a batch of nanopowder with the weight 1 kg was sent for testing to Argonne National Laboratory; (7) a business plan for establishing a company for making powders of materials for electrochemical oxygen pump was developed; and (8) major results obtained within the Project were reported at international conferences and published in the Russian journal Electrochemistry. In accordance with the Work Plan a business trip of the following project participants was scheduled for April 22-29, 2006, to Tonawanda, NY, USA: Manager Victor Borisov; Leader of technology development Gennady Studenikin; Leader of business planning Elena Zadorozhnaya; Leader of production Vasily

  6. PREFACE: Workshop Photograph and Program

    NASA Astrophysics Data System (ADS)

    2011-07-01

    Workshop photograph Workshop Program Sunday 28 March 201019:00-21:00 Reception at Okura Frontier Hotel Tsukuba(Buffet style dinner with drink) Monday 29 March 2010Introduction (Chair: André Rubbia (ETH Zurich))09:00 Welcome address (05') Atsuto Suzuki (KEK)09:05 Message from CERN on neutrino physics (10') Sergio Bertolucci (CERN)09:15 Message from FNAL on neutrino physics (10') Young Kee Kim (FNAL)09:25 Message from KEK on neutrino physics (10') Koichiro Nishikawa (KEK)09:35 Introductory remark on GLA2010 (10') Takuya Hasegawa (KEK) Special session (Chair: Koichiro Nishikawa (KEK))09:45 The ICARUS Liquid Argon TPC (45') Carlo Rubbia (CERN)10:30-11:00 Coffee break Main goals of Giant Liquid Argon Charge Imaging Experiments I (Chair: Takashi Kobayashi (KEK))11:00 Results from massive underground detectors (non accelerator) (30') Takaaki Kajita (ICRR, U. of Tokyo)11:30 Present long baseline neutrino experiments (30') Chang Kee Jung (SUNY Stony Brook)12:00-12:10 Workshop picture12:10-14:00 Lunch break Main goals of Giant Liquid Argon Charge Imaging Experiments II (Chair: Takashi Kobayashi (KEK))14:00 Physics goals of the next generation massive underground experiments (30') David Wark (Imperial College London)14:30 Near detectors for long baseline neutrino experiments (20') Tsuyoshi Nakaya (Kyoto U.) Lessons on Liquid Argon Charge Imaging technology from ongoing developments (Chair: Chang Kee Jung (SUNY Stony Brook))14:50 WARP (30') Claudio Montanari (U. of Pavia)15:20 ArDM (30') Alberto Marchionni (ETH Zurich)15:50 From ArgoNeuT to MicroBooNE (30') Bonnie Fleming (Yale U.)16:20 250L (30') Takasumi Maruyama (KEK)16:50 The DEAP/CLEAN project (20') Mark Boulay (Queen's U.)17:10-17:40 Coffee break Lessons from Xe based Liquids Imaging detectors (Chair: Flavio Cavanna (U. of L'Aquilla))17:30 MEG (20') Satoshi Mihara (KEK)17:50 The XENON project (20') Elena Aprile (Columbia U.)18:10 XMASS (20') Hiroyuki Sekiya (ICRR, U. of Tokyo) Studies on physics performance (Chair

  7. Verochka Zingan or recollections from the Physics Department of the Moscow University

    NASA Astrophysics Data System (ADS)

    Gaina, Alex; Gaina, Danielle A.

    The author recollects his studentship during 70-th years at the Physics Department of the Moscow University. He was graduated from the theoretical Physics Department in 1977. The Rectors of the University that times were I.G. Petrovskii, R.V. Khokhlov and A.A. Logunov. The dean of the Physics Department was V.S. Fursov. As a particular event a meet with the former prime-minister of the USSR A.N. Kosygin is reported. Between professors mentioned throughout the recollections are A.I.Kitaigorodskii, Ya. B. Zel'dovich, D.D. Ivanenko, A.A. Sokolov, A.A. Vlasov, V.B. Braginsky, I.M. Ternov, L.A. Artsimovich, E.P. Velikhov and other, including that which became University professors later. A great number of colleagues from the Physics, Chemistry, Phylological and Historical Departments of the Moscow University are mentioned. Particularly, the students which entered the group 113 in 1971 and finished the group 601 in 1977 are listed. The recollections include 5 parts. Persons cited throughout the paper: A.N. Kosygin, A.S. Golovin, V. Kostyukevich, I.M. Ternov, E.G. Pozdnyak, A. N. Matveev, V.P. Elyutin, V.V. Kerzhentsev, 113 academic group (1971), V. Topala, E.A. Marinchuk, P.Paduraru, A.I. Kitaygorodski, A. Leahu, S. Berzan, B. Ursu, I. Coanda (Koade), M. Stefanovici, O. Bulgaru, A. Iurie-Apostol, A.S. Davydov, M.I. Kaganov, I.M. Lifshitz, Ya. B. Zel'dovich, A.Zhukov, A.I. Buzdin, N.S. Perov, V. Dolgov, P. Vabishchevich, A.A. Samarskii, V. Makarov, Irina Kamenskih, A.A. Arsen'ev, L.A. Artsimovich, A.A. Tyapkin, B.M. Pontecorvo, D.I. Blokhintsev, I.G. Petrovskii, R.V. Khokhlov, V.N. Rudenko, A.A. Sokolov, D.D. Ivanenko (Iwanenko), A.A. Vlasov, V.N. Ponomarev, N.N. Bogolyubov, N.N. Bogolyubov (Jr), V.Ch. Zhukovskii, Tamara Tarasova, Zarina Radzhabova (Malovekova), V.Malovekov, Tatiana Shmeleva, Alexandra C.Nicolescu, Tatiana Nicolescu, Rano Mahkamova, Miriam Yandieva, Natalia Germaniuk (Grigor'eva), E. Grigor'ev, A. Putro, Elena Nikiforova, B. Kostrykin, Galia Laufer, K

  8. Detailed chronology of a giant Pleistocene rock-avalanche sequence in the hyperarid southern Peru revealed by jointly applied 10Be and 3He cosmic ray exposure dating : The Study case of the Cerro Caquilluco landslide complex.

    NASA Astrophysics Data System (ADS)

    Swann, Zerathe; Laurence, Audin; Carlos, Benavente; Régis, Braucher; Pierre-Henri, Blard; Didier, Bourlès; Julien, Carcaillet; Fabrizio, Delgado; Pascal, Lacroix; Valderrama Patricio, Murillo; Aster Team

    2015-04-01

    suggesting sequential failures, this object appeared as a good target to bring additional knowledge on the previously exposed issues. Our goal was to use TCN and to sample a maximum of individual lobes to be able to discuss: (i) the time of recurrence of successive extreme events, (ii) the respective roles of past climate variations versus earthquake forcing on the landslide trigger, and (iii) the impact of these mass remobilizations on local erosion rates compared to fluvial erosion rates and tectonic uplift rates (both known in this region). On average, three samples were extracted from individual meter-scale boulders sampled on seven different lobes of debris (~20 samples). Due to the lack of quartz in that volcanic lithology, 10Be was extracted from feldspaths for all samples. Half were additionally processed for 3He measurements on pyroxene, allowing to reduce the uncertainty on the derived exposure ages and to solve the production equation for both time and erosion variables. The obtained ages show a perfect consistency with the pattern of erosion, geomorphic surfaces and relative position of each lobes (i.e. younger from the toe to the top). These results highlight sequential failures staggered at the Pleistocene timescale, with some surprising time of recurrence ranging from 30 to 100 ka that may correspond to the main last climate variations in that region. Crosta, G.B., Hermanns, R.L., Frattini, P., Valbuzzi, E., Valagussa, A., 2014a. Large slope instabilities in Northern Chile: Inventory, Characterisation and Possible Triggers. In: Proceedings of the 3rd world landslide Forum, 2-6 June 2014, Bejing, p 6. DOI: 10.1007/978/-3-319-04996-0_28. Crosta, G.B., Paolo, F., Elena, V., Hermanns, R.L., 2014b. The Cerro Caquilluco-Cerrillos Negros Giant Rock Avalanches (Tacna, Peru). IAEG - Torino 2014, N°159. McPhillips, D., Bierman, P.R., Rood, D.H., 2014. Millennial-scale record of landslides in the Andes consistent with earthquake trigger. Nature Geoscience, DOI: 10

  9. Verochka Zingan or recollections from the Physics Department of the Moscow University

    NASA Astrophysics Data System (ADS)

    Gaina, Alex; Gaina, Danielle A.

    The author recollects his studentship during 70-th years at the Physics Department of the Moscow University. He was graduated from the theoretical Physics Department in 1977. The Rectors of the University that times were I.G. Petrovskii, R.V. Khokhlov and A.A. Logunov. The dean of the Physics Department was V.S. Fursov. As a particular event a meet with the former prime-minister of the USSR A.N. Kosygin is reported. Between professors mentioned throughout the recollections are A.I.Kitaigorodskii, Ya. B. Zel'dovich, D.D. Ivanenko, A.A. Sokolov, A.A. Vlasov, V.B. Braginsky, I.M. Ternov, L.A. Artsimovich, E.P. Velikhov and other, including that which became University professors later. A great number of colleagues from the Physics, Chemistry, Phylological and Historical Departments of the Moscow University are mentioned. Particularly, the students which entered the group 113 in 1971 and finished the group 601 in 1977 are listed. The recollections include 5 parts. Persons cited throughout the paper: A.N. Kosygin, A.S. Golovin, V. Kostyukevich, I.M. Ternov, E.G. Pozdnyak, A. N. Matveev, V.P. Elyutin, V.V. Kerzhentsev, 113 academic group (1971), V. Topala, E.A. Marinchuk, P.Paduraru, A.I. Kitaygorodski, A. Leahu, S. Berzan, B. Ursu, I. Coanda (Koade), M. Stefanovici, O. Bulgaru, A. Iurie-Apostol, A.S. Davydov, M.I. Kaganov, I.M. Lifshitz, Ya. B. Zel'dovich, A.Zhukov, A.I. Buzdin, N.S. Perov, V. Dolgov, P. Vabishchevich, A.A. Samarskii, V. Makarov, Irina Kamenskih, A.A. Arsen'ev, L.A. Artsimovich, A.A. Tyapkin, B.M. Pontecorvo, D.I. Blokhintsev, I.G. Petrovskii, R.V. Khokhlov, V.N. Rudenko, A.A. Sokolov, D.D. Ivanenko (Iwanenko), A.A. Vlasov, V.N. Ponomarev, N.N. Bogolyubov, N.N. Bogolyubov (Jr), V.Ch. Zhukovskii, Tamara Tarasova, Zarina Radzhabova (Malovekova), V.Malovekov, Tatiana Shmeleva, Alexandra C.Nicolescu, Tatiana Nicolescu, Rano Mahkamova, Miriam Yandieva, Natalia Germaniuk (Grigor'eva), E. Grigor'ev, A. Putro, Elena Nikiforova, B. Kostrykin, Galia Laufer, K

  10. PREFACE: Semiconducting oxides Semiconducting oxides

    NASA Astrophysics Data System (ADS)

    Catlow, Richard; Walsh, Aron

    2011-08-01

    their help in producing this special section. We hope that it conveys some of the excitement and significance of the field. Semiconducting oxides contents Chemical bonding in copper-based transparent conducting oxides: CuMO2 (M = In, Ga, Sc) K G Godinho, B J Morgan, J P Allen, D O Scanlon and G W Watson Electrical properties of (Ba, Sr)TiO3 thin films with Pt and ITO electrodes: dielectric and rectifying behaviourShunyi Li, Cosmina Ghinea, Thorsten J M Bayer, Markus Motzko, Robert Schafranek and Andreas Klein Orientation dependent ionization potential of In2O3: a natural source for inhomogeneous barrier formation at electrode interfaces in organic electronicsMareike V Hohmann, Péter Ágoston, André Wachau, Thorsten J M Bayer, Joachim Brötz, Karsten Albe and Andreas Klein Cathodoluminescence studies of electron irradiation effects in n-type ZnOCasey Schwarz, Yuqing Lin, Max Shathkin, Elena Flitsiyan and Leonid Chernyak Resonant Raman scattering in ZnO:Mn and ZnO:Mn:Al thin films grown by RF sputteringM F Cerqueira, M I Vasilevskiy, F Oliveira, A G Rolo, T Viseu, J Ayres de Campos, E Alves and R Correia Structure and electrical properties of nanoparticulate tungsten oxide prepared by microwave plasma synthesisM Sagmeister, M Postl, U Brossmann, E J W List, A Klug, I Letofsky-Papst, D V Szabó and R Würschum Charge compensation in trivalent cation doped bulk rutile TiO2Anna Iwaszuk and Michael Nolan Deep level transient spectroscopy studies of n-type ZnO single crystals grown by different techniquesL Scheffler, Vl Kolkovsky, E V Lavrov and J Weber Microstructural and conductivity changes induced by annealing of ZnO:B thin films deposited by chemical vapour depositionC David, T Girardeau, F Paumier, D Eyidi, B Lacroix, N Papathanasiou, B P Tinkham, P Guérin and M Marteau Multi-component transparent conducting oxides: progress in materials modellingAron Walsh, Juarez L F Da Silva and Su-Huai Wei Thickness dependence of the strain, band gap and transport properties of

  11. List of Posters

    NASA Astrophysics Data System (ADS)

    List of Posters: Dark matter annihilation in the Galactic galo, by Dokuchaev Vyacheslav, et al. NEMO developments towards km3 telescope in the Mediterranean Sea. The NEMO project. Neutrino Mediterranean Observatory By Antonio Capone, NEMO Collaboration. Alignment as a result from QCD jet production or new still unknown physics at LHC? By Alexander Snigirev. Small-scale fluctuations of extensive air showers: systematics in energy and muon density estimation By Grigory Rubtsov. SHINIE: Simulation of High-Energy Neutrino Interacting with the Earth By Lin Guey-Lin, et al.. Thermodynamics of rotating solutions in n+1 dimensional Einstein - Maxwell -dilation gravity By Ahmad Sheykhi, et al.. Supernova neutrino physics with future large Cherenkov detectors By Daniele Montanino. Crossing of the Cosmological Constant Barrier in the string Inspired Dark Energy Model By S. Yu. Vernov. Calculations of radio signals produced by ultra-high and extremely high energy neutrino induced cascades in Antarctic ice By D. Besson, et al.. Inflation, Cosmic Acceleration and string Gravity By Ischwaree Neupane. Neutrino Physics: Charm and J/Psi production in the atmosphere By Liudmila Volkova. Three generation flavor transitions and decays of supernova relic neutrinos By Daniele Montanino. Lattice calculations & computational quantum field theory: Sonification of Quark and Baryon Spectra By Markum Harald, et al.. Generalized Kramers-Wannier Duality for spin systems with non-commutative symmetry By V. M. Buchstaber, et al.. Heavy ion collisions & quark matter: Nuclear matter jets and multifragmentation By Danut Argintaru, et al.. QCD hard interactions: The qT-spectrum of the Higgs and Slepton-pairs at the LHC By Guiseppe Bozzi. QCD soft interactions: Nonperturbative effects in Single-Spin Asymmetries: Instantons and TMD-parton distributions By Igor Cherednikov, et al.. Gluon dominance model and high multiplicity By Elena Kokoulina. Resonances in eta pi- pi- pi+ system By Dmitry Ryabchikov

  12. Obituary: Ralph Robert Robbins, Jr., 1938-2005

    NASA Astrophysics Data System (ADS)

    Hemenway, Mary Kay; Jefferys, William H.; Lambert, David L.

    2007-12-01

    Ralph Robert Robbins, Jr., died on 2 December 2005, in Kyle, Texas. His wife, Maria Elena Robbins, his daughters Julia Robbins Kelso and Stephanie Juarez Balles, his son Matthew Juarez, and five grandchildren survive him. Bob was on the faculty at the University of Texas from 1968 until his retirement in 2003. Bob was born in Wichita, Kansas, on 2 September 1938, the only son of Mildred and Ralph Robert Robbins, Sr. Guided by his high school's policy to provide a practical education to children of working-class parents, Bob began high school with a heavy dose of vocational courses until the results of a test indicated his special talent in mathematics. He was awarded a full scholarship to Yale University, graduating magna cum laude in mathematics in 1960. He won the Warner Prize in Mathematics at Yale that year. He received his Ph.D. in 1966 with a dissertation entitled "The Triplet Spectrum of Neutral Helium in Expanding Nebulae" from the University of California at Berkeley. His interest in college teaching was ignited at this time through summer teaching positions at San Mateo California Junior College and the Ohio State University. Following a year at Texas as a McDonald Observatory Post-doctoral Fellow, Bob taught for a year in the physics department of the University of Houston before returning to the University of Texas at Austin as an Assistant Professor of Astronomy in 1968. He was promoted to Associate Professor in 1972. Bob's research in the early 1970s on theoretical studies of helium was of vital importance to astronomers for over three decades. These pioneering calculations became vital to observational astronomers in the mid-1990s as interest grew in the primordial helium produced by the Big Bang. Bob's interest and influence in education was international in scope. In the summers 1968-1970, he was a government consultant in Mathematics in East Pakistan (now Bangladesh). He consulted with the government that was preparing a master plan for technical

  13. PREFACE: XIV Mexican School on Particles and Fields

    NASA Astrophysics Data System (ADS)

    Bashir, Adnan; Contreras, Guillermo; Raya, Alfredo; Tejeda-Yeomans, Maria Elena

    2011-03-01

    de Física de Altas Energías. At a personal level, we are very grateful to Dr Juan Carlos D'Olivo (President of the Red Nacional de Física de Altas Energías), Dr Pedro Mata Vázquez (Director of COECyT), Dr Ricardo Becerril Bárcenas (Director of the Institute of Physics and Mathematics, UMSNH), Dr Rigoberto Vera Mendoza (Director of the Faculty of Science, UMSNH) and Dr José Napoleón Guzmán Ávila (Coordinator of Scientific Research, UMSNH) for their invaluable support in all organizational matters, which enabled the school to become a reality. We gratefully acknowledge the help of our colleagues in the organizing committee: Alexis Aguilar, Alejandro Ayala, Wolfgang Bietenholz, Alberto Güijosa, Gabriela Murguía, Sarira Sahu (UNAM), Eduard de la Cruz Burelo, Abdel Pérez-Lorenzana (CINVESTAV), Elena Cáceres (UCOL), David Delepine (UG), Mariana Kirchbach (UASLP), Ildefonso León (UAS), Juan Carlos Arteaga-Velázquez (for his impeccable work in managing the web page of the school) and Víctor Villanueva (UMSNH). Most of them contributed to the extra work involved in refereeing the contributions submitted for this publication. Many thanks also go to all the student volunteers for the efficiency and dedication with which they carried out their duties. At the registration desk, we relied on the hard work of Xiomara Gutiérrez, Enif Gutiérrez (UMSNH) and Mara Diaz Pancardo. Several post docs and PhD students provided invaluable support in all organizational matters: Adolfo Huet, Cliffor Compeán, Rocío Bermúdez, Saúl Sánchez, Anabel Trejo, Iraís Rubalcava, Khépani Raya, José Juan González, Saúl Hernández Ortiz (UMSNH), Alfredo Galaviz, and Alan Aganza (USON). Their help in carrying out the organization of the school was essential and without their collaboration, this school would not have been the same. We also acknowledge the help of the administrative secretary Maria Esperanza Jaramillo of IFM (UMSNH). We would like to take this opportunity to thank

  14. PREFACE: Semiconducting oxides Semiconducting oxides

    NASA Astrophysics Data System (ADS)

    Catlow, Richard; Walsh, Aron

    2011-08-01

    their help in producing this special section. We hope that it conveys some of the excitement and significance of the field. Semiconducting oxides contents Chemical bonding in copper-based transparent conducting oxides: CuMO2 (M = In, Ga, Sc) K G Godinho, B J Morgan, J P Allen, D O Scanlon and G W Watson Electrical properties of (Ba, Sr)TiO3 thin films with Pt and ITO electrodes: dielectric and rectifying behaviourShunyi Li, Cosmina Ghinea, Thorsten J M Bayer, Markus Motzko, Robert Schafranek and Andreas Klein Orientation dependent ionization potential of In2O3: a natural source for inhomogeneous barrier formation at electrode interfaces in organic electronicsMareike V Hohmann, Péter Ágoston, André Wachau, Thorsten J M Bayer, Joachim Brötz, Karsten Albe and Andreas Klein Cathodoluminescence studies of electron irradiation effects in n-type ZnOCasey Schwarz, Yuqing Lin, Max Shathkin, Elena Flitsiyan and Leonid Chernyak Resonant Raman scattering in ZnO:Mn and ZnO:Mn:Al thin films grown by RF sputteringM F Cerqueira, M I Vasilevskiy, F Oliveira, A G Rolo, T Viseu, J Ayres de Campos, E Alves and R Correia Structure and electrical properties of nanoparticulate tungsten oxide prepared by microwave plasma synthesisM Sagmeister, M Postl, U Brossmann, E J W List, A Klug, I Letofsky-Papst, D V Szabó and R Würschum Charge compensation in trivalent cation doped bulk rutile TiO2Anna Iwaszuk and Michael Nolan Deep level transient spectroscopy studies of n-type ZnO single crystals grown by different techniquesL Scheffler, Vl Kolkovsky, E V Lavrov and J Weber Microstructural and conductivity changes induced by annealing of ZnO:B thin films deposited by chemical vapour depositionC David, T Girardeau, F Paumier, D Eyidi, B Lacroix, N Papathanasiou, B P Tinkham, P Guérin and M Marteau Multi-component transparent conducting oxides: progress in materials modellingAron Walsh, Juarez L F Da Silva and Su-Huai Wei Thickness dependence of the strain, band gap and transport properties of

  15. Detailed chronology of a giant Pleistocene rock-avalanche sequence in the hyperarid southern Peru revealed by jointly applied 10Be and 3He cosmic ray exposure dating : The Study case of the Cerro Caquilluco landslide complex.

    NASA Astrophysics Data System (ADS)

    Swann, Zerathe; Laurence, Audin; Carlos, Benavente; Régis, Braucher; Pierre-Henri, Blard; Didier, Bourlès; Julien, Carcaillet; Fabrizio, Delgado; Pascal, Lacroix; Valderrama Patricio, Murillo; Aster Team

    2015-04-01

    suggesting sequential failures, this object appeared as a good target to bring additional knowledge on the previously exposed issues. Our goal was to use TCN and to sample a maximum of individual lobes to be able to discuss: (i) the time of recurrence of successive extreme events, (ii) the respective roles of past climate variations versus earthquake forcing on the landslide trigger, and (iii) the impact of these mass remobilizations on local erosion rates compared to fluvial erosion rates and tectonic uplift rates (both known in this region). On average, three samples were extracted from individual meter-scale boulders sampled on seven different lobes of debris (~20 samples). Due to the lack of quartz in that volcanic lithology, 10Be was extracted from feldspaths for all samples. Half were additionally processed for 3He measurements on pyroxene, allowing to reduce the uncertainty on the derived exposure ages and to solve the production equation for both time and erosion variables. The obtained ages show a perfect consistency with the pattern of erosion, geomorphic surfaces and relative position of each lobes (i.e. younger from the toe to the top). These results highlight sequential failures staggered at the Pleistocene timescale, with some surprising time of recurrence ranging from 30 to 100 ka that may correspond to the main last climate variations in that region. Crosta, G.B., Hermanns, R.L., Frattini, P., Valbuzzi, E., Valagussa, A., 2014a. Large slope instabilities in Northern Chile: Inventory, Characterisation and Possible Triggers. In: Proceedings of the 3rd world landslide Forum, 2-6 June 2014, Bejing, p 6. DOI: 10.1007/978/-3-319-04996-0_28. Crosta, G.B., Paolo, F., Elena, V., Hermanns, R.L., 2014b. The Cerro Caquilluco-Cerrillos Negros Giant Rock Avalanches (Tacna, Peru). IAEG - Torino 2014, N°159. McPhillips, D., Bierman, P.R., Rood, D.H., 2014. Millennial-scale record of landslides in the Andes consistent with earthquake trigger. Nature Geoscience, DOI: 10

  16. Obituary: Ralph Robert Robbins, Jr., 1938-2005

    NASA Astrophysics Data System (ADS)

    Hemenway, Mary Kay; Jefferys, William H.; Lambert, David L.

    2007-12-01

    Ralph Robert Robbins, Jr., died on 2 December 2005, in Kyle, Texas. His wife, Maria Elena Robbins, his daughters Julia Robbins Kelso and Stephanie Juarez Balles, his son Matthew Juarez, and five grandchildren survive him. Bob was on the faculty at the University of Texas from 1968 until his retirement in 2003. Bob was born in Wichita, Kansas, on 2 September 1938, the only son of Mildred and Ralph Robert Robbins, Sr. Guided by his high school's policy to provide a practical education to children of working-class parents, Bob began high school with a heavy dose of vocational courses until the results of a test indicated his special talent in mathematics. He was awarded a full scholarship to Yale University, graduating magna cum laude in mathematics in 1960. He won the Warner Prize in Mathematics at Yale that year. He received his Ph.D. in 1966 with a dissertation entitled "The Triplet Spectrum of Neutral Helium in Expanding Nebulae" from the University of California at Berkeley. His interest in college teaching was ignited at this time through summer teaching positions at San Mateo California Junior College and the Ohio State University. Following a year at Texas as a McDonald Observatory Post-doctoral Fellow, Bob taught for a year in the physics department of the University of Houston before returning to the University of Texas at Austin as an Assistant Professor of Astronomy in 1968. He was promoted to Associate Professor in 1972. Bob's research in the early 1970s on theoretical studies of helium was of vital importance to astronomers for over three decades. These pioneering calculations became vital to observational astronomers in the mid-1990s as interest grew in the primordial helium produced by the Big Bang. Bob's interest and influence in education was international in scope. In the summers 1968-1970, he was a government consultant in Mathematics in East Pakistan (now Bangladesh). He consulted with the government that was preparing a master plan for technical

  17. PREFACE: Workshop Photograph and Program

    NASA Astrophysics Data System (ADS)

    2011-07-01

    Workshop photograph Workshop Program Sunday 28 March 201019:00-21:00 Reception at Okura Frontier Hotel Tsukuba(Buffet style dinner with drink) Monday 29 March 2010Introduction (Chair: André Rubbia (ETH Zurich))09:00 Welcome address (05') Atsuto Suzuki (KEK)09:05 Message from CERN on neutrino physics (10') Sergio Bertolucci (CERN)09:15 Message from FNAL on neutrino physics (10') Young Kee Kim (FNAL)09:25 Message from KEK on neutrino physics (10') Koichiro Nishikawa (KEK)09:35 Introductory remark on GLA2010 (10') Takuya Hasegawa (KEK) Special session (Chair: Koichiro Nishikawa (KEK))09:45 The ICARUS Liquid Argon TPC (45') Carlo Rubbia (CERN)10:30-11:00 Coffee break Main goals of Giant Liquid Argon Charge Imaging Experiments I (Chair: Takashi Kobayashi (KEK))11:00 Results from massive underground detectors (non accelerator) (30') Takaaki Kajita (ICRR, U. of Tokyo)11:30 Present long baseline neutrino experiments (30') Chang Kee Jung (SUNY Stony Brook)12:00-12:10 Workshop picture12:10-14:00 Lunch break Main goals of Giant Liquid Argon Charge Imaging Experiments II (Chair: Takashi Kobayashi (KEK))14:00 Physics goals of the next generation massive underground experiments (30') David Wark (Imperial College London)14:30 Near detectors for long baseline neutrino experiments (20') Tsuyoshi Nakaya (Kyoto U.) Lessons on Liquid Argon Charge Imaging technology from ongoing developments (Chair: Chang Kee Jung (SUNY Stony Brook))14:50 WARP (30') Claudio Montanari (U. of Pavia)15:20 ArDM (30') Alberto Marchionni (ETH Zurich)15:50 From ArgoNeuT to MicroBooNE (30') Bonnie Fleming (Yale U.)16:20 250L (30') Takasumi Maruyama (KEK)16:50 The DEAP/CLEAN project (20') Mark Boulay (Queen's U.)17:10-17:40 Coffee break Lessons from Xe based Liquids Imaging detectors (Chair: Flavio Cavanna (U. of L'Aquilla))17:30 MEG (20') Satoshi Mihara (KEK)17:50 The XENON project (20') Elena Aprile (Columbia U.)18:10 XMASS (20') Hiroyuki Sekiya (ICRR, U. of Tokyo) Studies on physics performance (Chair

  18. European Plate Observing System - the Arctic dimension and the Nordic collaboration

    NASA Astrophysics Data System (ADS)

    Atakan, K.; Heikkinen, P.; Juhlin, C.; Thybo, H.; Vogfjord, K.

    2012-04-01

    Dehls (NGU), Øystein Nordgulen (NGU), Roland Roberts (UU), Reynir Bødvarsson (UU), Ólafur Guðmundsson (UU), Steinunn Jacobsdottir (IMO), Freysteinn Sigmundsson (IES), Benedikt Halldórsson (EERC), Gudmundur Valsson (LMI), Irina Artemieva (KU), Peter Voss (GEUS), Trine Dahl-Jensen (GEUS), Tine B. Larsen (GEUS), Jens Jørgen Møller (GEUS), Martin Hansen (GEUS), Jørgen Tulstrup (GEUS), Johnny Fredericia (GEUS), Niels Andersen (DTU-Space), Jurgen Matzka (DTU-Space), Shfaqat Abbas Khan (DTU-Space), Niels Balling (AU), Markku Poutanen (FGI), Elena Kozlovskaya (SGO).

  19. Crushed aggregates for roads and their properties for frost protection

    NASA Astrophysics Data System (ADS)

    Kuznetsova, Elena; Willy Danielsen, Svein

    2015-04-01

    Crushed aggregates for roads and their properties for frost protection Elena Kuznetsova, NTNU and Svein Willy Danielsen, SINTEF With natural (fluvial, glaciofluvial) sand/gravel resources being rapidly depleted in many countries, the last decade has seen a significant trend towards using more alternative materials for construction purpose. In Norway the development and implementation of crushed aggregate technology has been the most important way to get around the problem with increased resource scarcity. Today Norway is one the European countries with the highest percentage of crushed/manufactured aggregates. A crushed product will reveal a different particle size distribution, a sharper, more angular particle shape, and not least - a significantly different mineral composition. The latter may often be characterised by more polymineral composition, and it will also much more depend on the local bedrock. When handled with care and knowledge, these differences can give the user a lot of new opportunities relating to materials design. Norwegian road construction practice has changed significantly during the last 40 years due to the replacement of gravel by crushed rock materials in the granular layers of the pavements. The use of non-processed rock materials from blasting was allowed in the subbase layer until 2012. This was a reason for a lot of problems with frost heaving due to inhomogeneity of this material, and in practice it was difficult to control the size of large stones. Since 2012 there is a requirement that rock materials for use in the subbase layer shall be crushed (Handbook N200, 2014). During the spring 2014 The Norwegian Public Roads Administration introduced a new handbook with requirements for roads construction in Norway, including new specifications for the frost protection layer. When pavements are constructed over moist and/or frost susceptible soils in cold and humid environments, the frost protection layer also becomes a very important part

  20. Cosmic "Dig" Reveals Vestiges of the Milky Way's Building Blocks

    NASA Astrophysics Data System (ADS)

    2009-11-01

    means of a computer-controlled deformable mirror that counteracts the image distortion introduced by atmospheric turbulence. It is based on real-time optical corrections computed at very high speed (many hundreds of times each second) from image data obtained by a wavefront sensor (a special camera) that monitors light from a reference star, Present AO systems can only correct the effect of atmospheric turbulence in a very small region of the sky - typically 15 arcseconds or less - the correction degrading very quickly when moving away from the reference star. Engineers have therefore developed new techniques to overcome this limitation, one of which is multi-conjugate adaptive optics. MAD uses up to three guide stars instead of one as references to remove the blur caused by atmospheric turbulence over a field of view thirty times larger than existing techniques (eso0719). More information This research was presented in a paper that appears in the 26 November 2009 issue of Nature , "The cluster Terzan 5 as a remnant of a primordial building block of the Galactic bulge", by F. R. Ferraro et al.. The team is composed of Francesco Ferraro, Emanuele Dalessandro, Alessio Mucciarelli and Barbara Lanzoni (Department of Astronomy, University of Bologna, Italy), Giacomo Beccari (ESA, Space Science Department, Noordwijk, Netherlands), Mike Rich (Department of Physics and Astronomy, UCLA, Los Angeles, USA), Livia Origlia, Michele Bellazzini and Gabriele Cocozza (INAF - Osservatorio Astronomico di Bologna, Italy), Robert T. Rood (Astronomy Department, University of Virginia, Charlottesville, USA), Elena Valenti (ESO and Pontificia Universidad Catolica de Chile, Departamento de Astronomia, Santiago, Chile) and Scott Ransom (National Radio Astronomy Observatory, Charlottesville, USA). ESO, the European Southern Observatory, is the foremost intergovernmental astronomy organisation in Europe and the world's most productive astronomical observatory. It is supported by 14 countries

  1. a Passage to the Universe

    NASA Astrophysics Data System (ADS)

    1995-11-01

    a concluding Press Conference , during which the outcome of this unique event will be summarized by the participants and the organisers: Monday, November 20, 1995, 15:30 pm, at the ESO Headquarters, Karl-Schwarzschild-Strasse 2, D-85748 Garching, Germany List of National First-Prize Winners Belgium: Mr. Freddy Allemeersch (Teacher), Mr. Pieter De Ceuninck, Mr. Jeroen Staelens (Onze-Lieve-Vrouwecollege, Brugge) Denmark: Mr. Joern C. Olsen, Mr. Henrik Struckmann, Mr. Uffe A. Hansen, Mr. Mogens Winther (Teacher) (Soenderborg Amtsgymnasium) Finland: Mr. Reima Eresmaa, Ms. Laura Elina Nykyri, Ms. Reetamaija Janhonen (Cygnaeues-Lukeo, Jyvaeskylae and Jyvaeskylaen Lyseon Lukeo) France: Mr. Rene Cavaroz (Teacher), Mr. Vincent Hardy, Mr. Antoine Lesuffleur (Lycee Chartier, Bayeux) Germany: Ms. Dorothee Barth, Mr. Walter Czech (Teacher), Mr. Uwe Kranz, Ms. Karin Wieland (Immanuel-Kant-Gymnasium, Leinfelden-Echterdingen, Baden-Wuerttemberg) Greece: Ms. Agni Ioannidi, Ms. Elena Katifori, Mr. Vassilis Samiotis, Mr. Vassillos Tzotzes (Teacher) (Second Varvakelo Experimental Lyceum, Athens) Ireland: Mr. Declan Maccuarta (Teacher), Mr. Colm Mcloughlin (St. Peter's College, Wexford, Co. Wexford) Italy: Mr. Pasquale Ciarletta, Ms. Francesca D'elia, Ms. Ada Fortugna (Teacher), Mr. Alfredo Pudano (Liceo Scientifico `Leonardo da Vinci', Reggio Calabria) The Netherlands: Mr. Alex De Beer, Mr. Klaas Huijbregts, Mr. Ruud Nellen (Norbertuscollege, Rosendaal) Spain: Mr. Aritz Atela Aio, Mr. Julen Sarasola Manich (Teacher), Mr. Jon Huertas Rodriquez (Txorierri Batxilergoko Institua, Derio Bizkaia) Sweden: Mr. Rahman Amanullah, Mr. Kjell L. Bonander (Teacher), Mr. Tomas Oppelstrup, Ms. Christin Wiedemann (Saltsjoebadens Samskola, Saltsjoebaden) United Kingdom: Mr. Michael Ching, Dr. Richard Field (Teacher) (Oundle School, Peterborough) National Committees Further information about the national contests may be obtained from the National Committees: Belgium: Dr. C. Sterken, Vrije Universiteit

  2. EDITORIAL: Focus on Cold and Ultracold Molecules FOCUS ON COLD AND ULTRACOLD MOLECULES

    NASA Astrophysics Data System (ADS)

    Carr, Lincoln D.; Ye, Jun

    2009-05-01

    öhlich, A Griesmaier, T Pfau, H Saito, Y Kawaguchi and M Ueda High-energy-resolution molecular beams for cold collision studies L P Parazzoli, N Fitch, D S Lobser and H J Lewandowski Collisional effects in the formation of cold guided beams of polar molecules M Motsch, C Sommer, M Zeppenfeld, L D van Buuren, P W H Pinkse and G Rempe Towards sympathetic cooling of large molecules: cold collisions between benzene and rare gas atoms P Barletta, J Tennyson and P F Barker Efficient formation of ground-state ultracold molecules via STIRAP from the continuum at a Feshbach resonance Elena Kuznetsova, Marko Gacesa, Philippe Pellegrini, Susanne F Yelin and Robin Côté Emergent timescales in entangled quantum dynamics of ultracold molecules in optical lattices M L Wall and L D Carr Rotational state resolved photodissociation spectroscopy of translationally and vibrationally cold MgH+ ions: toward rotational cooling of molecular ions K Højbjerre, A K Hansen, P S Skyt, P F Staanum and M Drewsen Collective transverse cavity cooling of a dense molecular beam Thomas Salzburger and Helmut Ritsch A Stark decelerator on a chip Samuel A Meek, Horst Conrad and Gerard Meijer Deceleration of molecules by dipole force potential: a numerical simulation Susumu Kuma and Takamasa Momose Ultracold molecules: vehicles to scalable quantum information processing Kathy-Anne Brickman Soderberg, Nathan Gemelke and Cheng Chin Magnetic field modification of ultracold molecule-molecule collisions T V Tscherbul, Yu V Suleimanov, V Aquilanti and R V Krems Spectroscopy of 39K85Rb triplet excited states using ultracold a 3Σ+ state molecules formed by photoassociation J T Kim, D Wang, E E Eyler, P L Gould and W C Stwalley Pumping vortex into a Bose-Einstein condensate of heteronuclear molecules Z F Xu, R Q Wang and L You Intense atomic and molecular beams via neon buffer-gas cooling David Patterson, Julia Rasmussen and John M Doyle Dynamical properties of dipolar Fermi gases T Sogo, L He, T Miyakawa, S Yi, H Lu

  3. PREFACE: Turbulent Mixing and Beyond Turbulent Mixing and Beyond

    NASA Astrophysics Data System (ADS)

    Abarzhi, Snezhana I.; Gauthier, Serge; Rosner, Robert

    2008-10-01

    ) Institute for Laser Engineering (ILE), Osaka, Japan (Division Head: Dr K Nishihara) Illinois Institute of Technology (IIT), Chicago, USA (College of Science and Letters, Department of Applied Mathematics: Dr S I Abarji) and thanks them for making this event possible. The Organizing Committee appreciates the assistance of Suzie Radosic (administrator and assistant, ICTP) Daniil Ilyin (web-master, Chicago) Elena Magnus (assistant, Chicago) We express our gratitude for the help with the Conference Program to the members of the Scientific Advisory Committee S I Abarzhi (The University of Chicago, Illinois Institute of Technology, USA) G Ahlers (University of California at Santa Barbara, USA) M J Andrews (Los Alamos National Laboratory, Texas A & M University, USA) S I Anisimov (Landau Institute for Theoretical Physics, Russia) E Bodenschatz (Max Plank Institute, Gottingen, Germany) S Dalziel (DAMTP, University of Cambridge, UK) R Ecke (Los Alamos National Laboratory, USA) H J Fernando (Arizona State University, USA) S Gauthier (Commissariat à l'Energie Atomique, France) G A Glatzmaier (University of California at Santa Cruz, USA) W A Goddard III (California Institute of Technology, USA) L P Kadanoff (The University of Chicago, USA) D Q Lamb (The University of Chicago, USA) D P Lathrop (University of Maryland, USA) S Lebedev (Imperial College, UK) P Manneville (Ecole Polytechnique, France) D I Meiron (California Institute of Technology, USA) H Nagib (Illinois Institute of Technology, Chicago, USA) J Niemela (International Center for Theoretical Physics, Italy) K Nishihara (Institute for Laser Engineering, Osaka, Japan) S A Orszag (Yale University, USA) E Ott (University of Maryland, USA) N Peters (RWTS, Aachen, Germany) S B Pope (Cornell, USA) B A Remington (Lawrence Livermore National Laboratory, USA) R Rosner (Argonne National Laboratory and The University of Chicago, USA) A Schmidt (Naval Research Laboratory, USA) K R Sreenivasan (International Centre for Theoretical Physics

  4. PREFACE: XVth International Conference on Calorimetry in High Energy Physics (CALOR2012)

    NASA Astrophysics Data System (ADS)

    Akchurin, Nural

    2012-12-01

    /Saclay Irfu/SPP FRANCAVILLA, Paolo IFAE Barcelona GATAULLIN, Marat California Institute of Technology GATTO, Corrado INFN-Napoli GAUDIO, Gabriella INFN-Pavia GERMANI, Stefano INFN-Perugia Goldenzweig, Pablo University of Rochester GRAF, Norman SLAC National Accelerator Laboratory GROOM, Don Lawrence Berkeley Lab GUARDINCERRI, Elena Los Alamos National Laboratory HAUPTMAN, John Iowa State University HENRIQUES, Ana CERN HUANG, Jin Los Alamos National Laboratory HU, Tao IHEP-Beijing, CAS JIANG, Xiaodong Los Alamos National Laboratory JUI, Charles University of Utah KAPUSTINSKY, Jon Los Alamos National Laboratory KIBILKO, Mark SE Technical Sales, Inc. KIRSCHENMANN, Henning University of Hamburg KISTENEV, Edouard Brookhaven National Laboratory KLIMEK, Pawel Stockholm Universitet KROEGER, Robert University of Mississippi LECOQ, Paul CERN LEE, Sehwook Texas Tech University LEE, Sung-Won Texas Tech University LIVAN, Michele Pavia University LUTZ, Benjamin DESY MAGILL, Stephen Argonne National Laboratory MATHIS, Mark College of William and Mary MATTHEWS, John University of Utah MENKE, Sven Max-Planck-Institut fuer Physik MOULSON, Matthew INFN-Frascati NAGEL, Martin Max-Planck-Institut fuer Physik NAKAMURA, Isamu KEK NEMECEK, Stanislav FZU AVCR Praha NESSI-TEDALDI, Francesca ETH Zurich NOVOTNY, Rainer 2nd Physics Institute, University Giessen OREGLIA, Mark University of Chicago PERLOFF, Alexx Texas A&M University PETYT, David Rutherford Appleton Laboratory RAHMAT, Rahmat University of Mississippi RAMILLI, Marco Hamburg Universitaet ROSIER LEES, Sylvie LAPP- IN2P3-CNRS RUTHERFOORD, John University of Arizona SAKUMA, Tai Texas A&M University SANTIAGO CERQUEIRA, Augusto Federal University of Juiz de Fora SARRA, Ivano INFN-Frascati SEIDEL, Sally University of New Mexico SEIFERT, Frank TU Dresden, Germany SHAMIM, Mansoora University of Oregon SIMON, Frank Max-Planck-Institute for Physics STAFFAN, Paul Wiener Plein and Baus, Corp Dr. STAROVOITOV, Pavel DESY TABARELLI DE FATIS, Tommaso

  5. List of Participants

    NASA Astrophysics Data System (ADS)

    2008-11-01

    Università di Napoli Federico II Elena Méndez Escobar University of Edinburgh Iulian Negru University of Craiova Emil NissimovInstitute for Nuclear Research and Nuclear Energy, Sofia Teake NutmaCentre for Theoretical Physics, University of Groningen Niels Obers Niels Bohr Institute, København Olof Ohlsson SaxUppsala University Rodrigo OleaIstituto Nazionale di Fisica Nucleare, Sezione di Milano Domenico OrlandoUniversité de Neuchâtel Marta Orselli Niels Bohr Institute, København Tomas OrtinInstituto de Física Teórica, Universidad Autónoma de Madrid Yaron OzTel Aviv University Enrico PajerLudwig-Maximilians-Universität, München Angel Paredes GalanUtrecht University Sara PasquettiUniversité de Neuchâtel Silvia PenatiUniversità di Milano-Bicocca Jan PerzKatholieke Universiteit Leuven Igor PesandoUniversità di Torino Tassos PetkouUniversity of Crete Marios PetropoulosCenter de Physique Théorique, École Polytechnique, Palaiseau Franco PezzellaIstituto Nazionale di Fisica Nucleare, Sezione di Napoli Moises Picon PonceUniversity of Padova Marco PirroneUniversità di Milano-Bicocca Andrea PrinslooUniversity of Cape Town Joris RaeymaekersKatholieke Universiteit Leuven Alfonso RamalloUniversidade de Santiago de Compostela Carlo Alberto RattiUniversità di Milano-Bicocca Marco RauchPhysikalisches Institut, Universität Bonn Ronald Reid-EdwardsUniversity of Hamburg Patricia RitterUniversity of Edinburgh Peter RoenneDESY, Hamburg Jan RosseelUniversità di Torino Clement RuefService de Physique Théorique, CEA Saclay Felix RustMax-Planck-Institut für Physik, München Thomas RyttovNiels Bohr Institute, København and CERN, Geneva Agustin Sabio VeraCERN, Geneva Christian SaemannTrinity College, Dublin Houman Safaai SISSA, Trieste Henning SamtlebenÉcole Normale Supérieure, Lyon Alberto SantambrogioIstituto Nazionale di Fisica Nucleare, Sezione di Milano Silviu Constantin SararuUniversity of Craiova Ricardo SchiappaCERN, Geneva Ionut Romeo SchiopuChalmers University, G

  6. Southern Fireworks above ESO Telescopes

    NASA Astrophysics Data System (ADS)

    1999-05-01

    - the PLANET observers turned their telescope and quickly obtained a series of CCD images in visual light of the sky region where the gamma-ray burst was detected, then shipped them off electronically to their Dutch colleagues [3]. Comparing the new photos with earlier ones in the digital sky archive, Vreeswijk, Galama and Rol almost immediately discovered a new, relatively bright visual source in the region of the gamma-ray burst, which they proposed as the optical counterpart of the burst, cf. their dedicated webpage at http://www.astro.uva.nl/~titus/grb990510/. The team then placed a message on the international Gamma-Ray Burster web-noteboard ( GCN Circular 310), thereby alerting their colleagues all over the world. One hour later, the narrow-field instruments on BeppoSax identified a new X-Ray source at the same location ( GCN Circular 311), thus confirming the optical identification. All in all, a remarkable synergy of human and satellite resources! Observations of GRB 990510 at ESO Vreeswijk, Galama and Rol, in collaboration with Nicola Masetti, Eliana Palazzi and Elena Pian of the BeppoSAX GRB optical follow-up team (led by Filippo Frontera ) and the Huntsville optical follow-up team (led by Chryssa Kouveliotou ), also contacted the European Southern Observatory (ESO). Astronomers at this Organization's observatories in Chile were quick to exploit this opportunity and crucial data were soon obtained with several of the main telescopes at La Silla and Paranal, less than 14 hours after the first detection of this event by the satellite. ESO PR Photo 22a/99 ESO PR Photo 22a/99 [Preview - JPEG: 211 x 400 pix - 72k] [Normal - JPEG: 422 x 800 pix - 212k] [High-Res - JPEG: 1582 x 3000 pix - 2.6M] ESO PR Photo 22b/99 ESO PR Photo 22b/99 [Preview - JPEG: 400 x 437 pix - 297k] [Normal - JPEG: 800 x 873 pix - 1.1M] [High-Res - JPEG: 2300 x 2509 pix - 5.9M] Caption to PR Photo 22a/99 : This wide-field photo was obtained with the Wide-Field Imager (WFI) at the MPG/ESO 2.2-m